* [PATCH v1] raw/afu_mf: introduce AFU MF device driver
@ 2022-05-17 6:29 Wei Huang
2022-05-17 7:34 ` [PATCH v2] " Wei Huang
0 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-05-17 6:29 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
Add afu_mf driver to manage various AFU (Acceleration Function Unit)
in FPGA.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
drivers/raw/afu_mf/afu_mf_rawdev.h | 89 ++
drivers/raw/afu_mf/he_hssi.c | 369 +++++++
drivers/raw/afu_mf/he_hssi.h | 102 ++
drivers/raw/afu_mf/he_lbk.c | 429 ++++++++
drivers/raw/afu_mf/he_lbk.h | 121 +++
drivers/raw/afu_mf/he_mem.c | 181 ++++
drivers/raw/afu_mf/he_mem.h | 40 +
drivers/raw/afu_mf/meson.build | 8 +
drivers/raw/afu_mf/n3000_afu.c | 1997 ++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
drivers/raw/afu_mf/version.map | 3 +
drivers/raw/meson.build | 1 +
14 files changed, 4247 insertions(+)
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
create mode 100644 drivers/raw/afu_mf/he_hssi.c
create mode 100644 drivers/raw/afu_mf/he_hssi.h
create mode 100644 drivers/raw/afu_mf/he_lbk.c
create mode 100644 drivers/raw/afu_mf/he_lbk.h
create mode 100644 drivers/raw/afu_mf/he_mem.c
create mode 100644 drivers/raw/afu_mf/he_mem.h
create mode 100644 drivers/raw/afu_mf/meson.build
create mode 100644 drivers/raw/afu_mf/n3000_afu.c
create mode 100644 drivers/raw/afu_mf/n3000_afu.h
create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
create mode 100644 drivers/raw/afu_mf/version.map
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
new file mode 100644
index 0000000..f24c748
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -0,0 +1,440 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "rte_pmd_afu.h"
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+#include "he_lbk.h"
+#include "he_mem.h"
+#include "he_hssi.h"
+
+#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
+
+static const struct rte_afu_uuid afu_uuid_map[] = {
+ { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ { 0, 0 /* sentinel */ }
+};
+
+static struct afu_mf_drv *afu_table[] = {
+ &n3000_afu_drv,
+ &he_lbk_drv,
+ &he_mem_lbk_drv,
+ &he_mem_tg_drv,
+ &he_hssi_drv,
+ NULL
+};
+
+static inline int afu_mf_trylock(struct afu_mf_rawdev *dev)
+{
+ int32_t x = 0;
+
+ if (!dev || !dev->shared)
+ return -ENODEV;
+
+ x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
+
+ if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x, 1,
+ 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED) == 0))
+ return -EBUSY;
+
+ return 0;
+}
+
+static inline void afu_mf_unlock(struct afu_mf_rawdev *dev)
+{
+ if (!dev || !dev->shared)
+ return;
+
+ __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE);
+}
+
+static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_mf_unlock(dev);
+}
+
+static int afu_mf_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_mf_rawdev_configure,
+ .dev_start = afu_mf_rawdev_start,
+ .dev_stop = afu_mf_rawdev_stop,
+ .dev_close = afu_mf_rawdev_close,
+ .dev_reset = afu_mf_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_mf_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_mf_rawdev_selftest,
+};
+
+static int
+afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
+ int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_mf_shared *ptr = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name,
+ sizeof(struct afu_mf_shared),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ ptr = (struct afu_mf_shared *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ ptr->lock = 0;
+
+ *data = ptr;
+
+ return 0;
+}
+
+static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ AFU_MF_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_mf_drv *entry = NULL;
+ int i = 0;
+
+ if (!afu_id)
+ return NULL;
+
+ while ((entry = afu_table[i++])) {
+ if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
+ (entry->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return entry ? entry->ops : NULL;
+}
+
+static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_mf_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_mf_rawdev),
+ socket_id);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_mf_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ AFU_MF_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ AFU_MF_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_mf_pmd_drv = {
+ .id_table = afu_uuid_map,
+ .probe = afu_mf_rawdev_probe,
+ .remove = afu_mf_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME, afu_mf_pmd_drv);
+RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h b/drivers/raw/afu_mf/afu_mf_rawdev.h
new file mode 100644
index 0000000..5690010
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_MF_RAWDEV_H__
+#define __AFU_MF_RAWDEV_H__
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_cycles.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+extern int afu_mf_pmd_logtype;
+
+#define AFU_MF_PMD_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n", \
+ __func__, ##args)
+
+#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
+
+#define AFU_MF_PMD_DEBUG(fmt, args...) \
+ AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
+#define AFU_MF_PMD_INFO(fmt, args...) \
+ AFU_MF_PMD_LOG(INFO, fmt, ## args)
+#define AFU_MF_PMD_ERR(fmt, args...) \
+ AFU_MF_PMD_LOG(ERR, fmt, ## args)
+#define AFU_MF_PMD_WARN(fmt, args...) \
+ AFU_MF_PMD_LOG(WARNING, fmt, ## args)
+
+#define CACHE_LINE_SIZE(n) ((n) << 6)
+#define CACHE_LINE_ALIGNED(n) ((n) >> 6)
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
+struct afu_mf_rawdev;
+
+struct afu_mf_ops {
+ int (*init)(struct afu_mf_rawdev *dev);
+ int (*config)(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_mf_rawdev *dev);
+ int (*stop)(struct afu_mf_rawdev *dev);
+ int (*test)(struct afu_mf_rawdev *dev);
+ int (*close)(struct afu_mf_rawdev *dev);
+ int (*reset)(struct afu_mf_rawdev *dev);
+ int (*dump)(struct afu_mf_rawdev *dev, FILE *f);
+};
+
+struct afu_mf_drv {
+ struct rte_afu_uuid uuid;
+ struct afu_mf_ops *ops;
+};
+
+struct afu_mf_shared {
+ int32_t lock;
+};
+
+struct afu_mf_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_mf_shared *shared; /* shared data for multi-process */
+ struct afu_mf_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_mf_rawdev *
+afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private : NULL;
+}
+
+#endif /* __AFU_MF_RAWDEV_H__ */
diff --git a/drivers/raw/afu_mf/he_hssi.c b/drivers/raw/afu_mf/he_hssi.c
new file mode 100644
index 0000000..68d8dba
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.c
@@ -0,0 +1,369 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ AFU_MF_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < 3; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
diff --git a/drivers/raw/afu_mf/he_hssi.h b/drivers/raw/afu_mf/he_hssi.h
new file mode 100644
index 0000000..f8b9623
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_HSSI_H_
+#define _HE_HSSI_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+extern struct afu_mf_drv he_hssi_drv;
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#endif /* _HE_HSSI_H_ */
diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c
new file mode 100644
index 0000000..d47ddde
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.c
@@ -0,0 +1,429 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_lbk.h"
+
+static int he_lbk_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_dsm_status *stat = NULL;
+ struct he_lbk_status0 stat0;
+ struct he_lbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ AFU_MF_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12lu %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lbk_test(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->src_iova),
+ ctx->addr + CSR_SRC_ADDR);
+
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->dest_iova),
+ ctx->addr + CSR_DST_ADDR);
+
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(CACHE_LINE_ALIGNED(ctx->dsm_iova),
+ ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(CACHE_LINE_ALIGNED(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CACHE_LINE_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CACHE_LINE_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CACHE_LINE_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lbk_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lbk_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release:
+ he_lbk_ctx_release(dev);
+ return ret;
+}
+
+static int he_lbk_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lbk_ctx_init(dev);
+}
+
+static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
+
+ return 0;
+}
+
+static int he_lbk_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t%p\n", (void *)ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t%p\n", (void *)ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t%p\n", (void *)ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_lbk_ops = {
+ .init = he_lbk_init,
+ .config = he_lbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lbk_test,
+ .close = he_lbk_close,
+ .dump = he_lbk_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_lbk_drv = {
+ .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
+
+struct afu_mf_drv he_mem_lbk_drv = {
+ .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h
new file mode 100644
index 0000000..c2e8a29
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_LBK_H_
+#define _HE_LBK_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LBK_UUID_L 0xb94b12284c31e02b
+#define HE_LBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LBK_UUID_H 0x8568ab4e6ba54616
+
+extern struct afu_mf_drv he_lbk_drv;
+extern struct afu_mf_drv he_mem_lbk_drv;
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lbk_dsm_status *status_ptr;
+};
+
+struct he_lbk_priv {
+ struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
+ struct he_lbk_ctx he_lbk_ctx;
+};
+
+#endif /* _HE_LBK_H_ */
diff --git a/drivers/raw/afu_mf/he_mem.c b/drivers/raw/afu_mf/he_mem.c
new file mode 100644
index 0000000..ccbb3a8
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.c
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_mem.h"
+
+static int he_mem_tg_test(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ AFU_MF_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
diff --git a/drivers/raw/afu_mf/he_mem.h b/drivers/raw/afu_mf/he_mem.h
new file mode 100644
index 0000000..82404b6
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_MEM_H_
+#define _HE_MEM_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+extern struct afu_mf_drv he_mem_tg_drv;
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#endif /* _HE_MEM_H_ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
new file mode 100644
index 0000000..f304bc8
--- /dev/null
+++ b/drivers/raw/afu_mf/meson.build
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2022 Intel Corporation
+
+deps += ['rawdev', 'bus_pci', 'bus_ifpga']
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
+ 'he_hssi.c')
+
+headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/n3000_afu.c b/drivers/raw/afu_mf/n3000_afu.c
new file mode 100644
index 0000000..420e84a
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.c
@@ -0,0 +1,1997 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+
+static int nlb_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12lu %7.3f GB/s %7.3f GB/s\n", cl,
+ stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->src_iova),
+ ctx->addr + CSR_SRC_ADDR);
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->dest_iova),
+ ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CACHE_LINE_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CACHE_LINE_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CACHE_LINE_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ return 0;
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)host_addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)src, ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)src, ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)host_addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)dst = rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)dst = rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ AFU_MF_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ AFU_MF_PMD_ERR("Timeout");
+ ret = -ETIME;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ AFU_MF_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ AFU_MF_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
+ AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ AFU_MF_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ AFU_MF_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)src, ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double getTime(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ AFU_MF_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ AFU_MF_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint64_t)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_mf_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+
+static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ AFU_MF_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release:
+ nlb_afu_ctx_release(dev);
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ AFU_MF_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ AFU_MF_PMD_ERR("DMA interrupt setup failed");
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ AFU_MF_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ AFU_MF_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ AFU_MF_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t%p\n", (void *)ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t%p\n", (void *)ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t%p\n", (void *)ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t%p\n", (void *)ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_mf_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_mf_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+struct afu_mf_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
diff --git a/drivers/raw/afu_mf/n3000_afu.h b/drivers/raw/afu_mf/n3000_afu.h
new file mode 100644
index 0000000..38104ac
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.h
@@ -0,0 +1,333 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _N3000_AFU_H_
+#define _N3000_AFU_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+extern struct afu_mf_drv n3000_afu_drv;
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_errror:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#endif /* _N3000_AFU_H_ */
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
new file mode 100644
index 0000000..89d866a
--- /dev/null
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+/**
+ * HE-LBK & HE-MEM-LBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[3];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
diff --git a/drivers/raw/afu_mf/version.map b/drivers/raw/afu_mf/version.map
new file mode 100644
index 0000000..c2e0723
--- /dev/null
+++ b/drivers/raw/afu_mf/version.map
@@ -0,0 +1,3 @@
+DPDK_22 {
+ local: *;
+};
diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build
index 05e7de1..c3627f7 100644
--- a/drivers/raw/meson.build
+++ b/drivers/raw/meson.build
@@ -6,6 +6,7 @@ if is_windows
endif
drivers = [
+ 'afu_mf',
'cnxk_bphy',
'cnxk_gpio',
'dpaa2_cmdif',
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v2] raw/afu_mf: introduce AFU MF device driver
2022-05-17 6:29 [PATCH v1] raw/afu_mf: introduce AFU MF device driver Wei Huang
@ 2022-05-17 7:34 ` Wei Huang
2022-05-19 2:43 ` [PATCH v3] " Wei Huang
0 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-05-17 7:34 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
Add afu_mf driver to manage various AFU (Acceleration Function Unit)
in FPGA.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
---
v2: fix typo
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
drivers/raw/afu_mf/afu_mf_rawdev.h | 89 ++
drivers/raw/afu_mf/he_hssi.c | 369 +++++++
drivers/raw/afu_mf/he_hssi.h | 102 ++
drivers/raw/afu_mf/he_lbk.c | 429 ++++++++
drivers/raw/afu_mf/he_lbk.h | 121 +++
drivers/raw/afu_mf/he_mem.c | 181 ++++
drivers/raw/afu_mf/he_mem.h | 40 +
drivers/raw/afu_mf/meson.build | 8 +
drivers/raw/afu_mf/n3000_afu.c | 1997 ++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
drivers/raw/afu_mf/version.map | 3 +
drivers/raw/meson.build | 1 +
14 files changed, 4247 insertions(+)
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
create mode 100644 drivers/raw/afu_mf/he_hssi.c
create mode 100644 drivers/raw/afu_mf/he_hssi.h
create mode 100644 drivers/raw/afu_mf/he_lbk.c
create mode 100644 drivers/raw/afu_mf/he_lbk.h
create mode 100644 drivers/raw/afu_mf/he_mem.c
create mode 100644 drivers/raw/afu_mf/he_mem.h
create mode 100644 drivers/raw/afu_mf/meson.build
create mode 100644 drivers/raw/afu_mf/n3000_afu.c
create mode 100644 drivers/raw/afu_mf/n3000_afu.h
create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
create mode 100644 drivers/raw/afu_mf/version.map
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
new file mode 100644
index 0000000..f24c748
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -0,0 +1,440 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "rte_pmd_afu.h"
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+#include "he_lbk.h"
+#include "he_mem.h"
+#include "he_hssi.h"
+
+#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
+
+static const struct rte_afu_uuid afu_uuid_map[] = {
+ { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ { 0, 0 /* sentinel */ }
+};
+
+static struct afu_mf_drv *afu_table[] = {
+ &n3000_afu_drv,
+ &he_lbk_drv,
+ &he_mem_lbk_drv,
+ &he_mem_tg_drv,
+ &he_hssi_drv,
+ NULL
+};
+
+static inline int afu_mf_trylock(struct afu_mf_rawdev *dev)
+{
+ int32_t x = 0;
+
+ if (!dev || !dev->shared)
+ return -ENODEV;
+
+ x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
+
+ if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x, 1,
+ 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED) == 0))
+ return -EBUSY;
+
+ return 0;
+}
+
+static inline void afu_mf_unlock(struct afu_mf_rawdev *dev)
+{
+ if (!dev || !dev->shared)
+ return;
+
+ __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE);
+}
+
+static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_mf_unlock(dev);
+}
+
+static int afu_mf_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_mf_rawdev_configure,
+ .dev_start = afu_mf_rawdev_start,
+ .dev_stop = afu_mf_rawdev_stop,
+ .dev_close = afu_mf_rawdev_close,
+ .dev_reset = afu_mf_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_mf_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_mf_rawdev_selftest,
+};
+
+static int
+afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
+ int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_mf_shared *ptr = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name,
+ sizeof(struct afu_mf_shared),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ ptr = (struct afu_mf_shared *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ ptr->lock = 0;
+
+ *data = ptr;
+
+ return 0;
+}
+
+static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ AFU_MF_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_mf_drv *entry = NULL;
+ int i = 0;
+
+ if (!afu_id)
+ return NULL;
+
+ while ((entry = afu_table[i++])) {
+ if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
+ (entry->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return entry ? entry->ops : NULL;
+}
+
+static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_mf_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_mf_rawdev),
+ socket_id);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_mf_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ AFU_MF_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ AFU_MF_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_mf_pmd_drv = {
+ .id_table = afu_uuid_map,
+ .probe = afu_mf_rawdev_probe,
+ .remove = afu_mf_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME, afu_mf_pmd_drv);
+RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h b/drivers/raw/afu_mf/afu_mf_rawdev.h
new file mode 100644
index 0000000..5690010
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_MF_RAWDEV_H__
+#define __AFU_MF_RAWDEV_H__
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_cycles.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+extern int afu_mf_pmd_logtype;
+
+#define AFU_MF_PMD_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n", \
+ __func__, ##args)
+
+#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
+
+#define AFU_MF_PMD_DEBUG(fmt, args...) \
+ AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
+#define AFU_MF_PMD_INFO(fmt, args...) \
+ AFU_MF_PMD_LOG(INFO, fmt, ## args)
+#define AFU_MF_PMD_ERR(fmt, args...) \
+ AFU_MF_PMD_LOG(ERR, fmt, ## args)
+#define AFU_MF_PMD_WARN(fmt, args...) \
+ AFU_MF_PMD_LOG(WARNING, fmt, ## args)
+
+#define CACHE_LINE_SIZE(n) ((n) << 6)
+#define CACHE_LINE_ALIGNED(n) ((n) >> 6)
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
+struct afu_mf_rawdev;
+
+struct afu_mf_ops {
+ int (*init)(struct afu_mf_rawdev *dev);
+ int (*config)(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_mf_rawdev *dev);
+ int (*stop)(struct afu_mf_rawdev *dev);
+ int (*test)(struct afu_mf_rawdev *dev);
+ int (*close)(struct afu_mf_rawdev *dev);
+ int (*reset)(struct afu_mf_rawdev *dev);
+ int (*dump)(struct afu_mf_rawdev *dev, FILE *f);
+};
+
+struct afu_mf_drv {
+ struct rte_afu_uuid uuid;
+ struct afu_mf_ops *ops;
+};
+
+struct afu_mf_shared {
+ int32_t lock;
+};
+
+struct afu_mf_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_mf_shared *shared; /* shared data for multi-process */
+ struct afu_mf_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_mf_rawdev *
+afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private : NULL;
+}
+
+#endif /* __AFU_MF_RAWDEV_H__ */
diff --git a/drivers/raw/afu_mf/he_hssi.c b/drivers/raw/afu_mf/he_hssi.c
new file mode 100644
index 0000000..68d8dba
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.c
@@ -0,0 +1,369 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIME;
+
+ AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ AFU_MF_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < 3; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
diff --git a/drivers/raw/afu_mf/he_hssi.h b/drivers/raw/afu_mf/he_hssi.h
new file mode 100644
index 0000000..f8b9623
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_HSSI_H_
+#define _HE_HSSI_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+extern struct afu_mf_drv he_hssi_drv;
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#endif /* _HE_HSSI_H_ */
diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c
new file mode 100644
index 0000000..d47ddde
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.c
@@ -0,0 +1,429 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_lbk.h"
+
+static int he_lbk_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_dsm_status *stat = NULL;
+ struct he_lbk_status0 stat0;
+ struct he_lbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ AFU_MF_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12lu %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lbk_test(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->src_iova),
+ ctx->addr + CSR_SRC_ADDR);
+
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->dest_iova),
+ ctx->addr + CSR_DST_ADDR);
+
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(CACHE_LINE_ALIGNED(ctx->dsm_iova),
+ ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(CACHE_LINE_ALIGNED(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CACHE_LINE_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CACHE_LINE_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CACHE_LINE_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lbk_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lbk_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release:
+ he_lbk_ctx_release(dev);
+ return ret;
+}
+
+static int he_lbk_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lbk_ctx_init(dev);
+}
+
+static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
+
+ return 0;
+}
+
+static int he_lbk_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t%p\n", (void *)ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t%p\n", (void *)ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t%p\n", (void *)ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_lbk_ops = {
+ .init = he_lbk_init,
+ .config = he_lbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lbk_test,
+ .close = he_lbk_close,
+ .dump = he_lbk_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_lbk_drv = {
+ .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
+
+struct afu_mf_drv he_mem_lbk_drv = {
+ .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h
new file mode 100644
index 0000000..c2e8a29
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_LBK_H_
+#define _HE_LBK_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LBK_UUID_L 0xb94b12284c31e02b
+#define HE_LBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LBK_UUID_H 0x8568ab4e6ba54616
+
+extern struct afu_mf_drv he_lbk_drv;
+extern struct afu_mf_drv he_mem_lbk_drv;
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lbk_dsm_status *status_ptr;
+};
+
+struct he_lbk_priv {
+ struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
+ struct he_lbk_ctx he_lbk_ctx;
+};
+
+#endif /* _HE_LBK_H_ */
diff --git a/drivers/raw/afu_mf/he_mem.c b/drivers/raw/afu_mf/he_mem.c
new file mode 100644
index 0000000..ccbb3a8
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.c
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_mem.h"
+
+static int he_mem_tg_test(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ AFU_MF_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
diff --git a/drivers/raw/afu_mf/he_mem.h b/drivers/raw/afu_mf/he_mem.h
new file mode 100644
index 0000000..82404b6
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_MEM_H_
+#define _HE_MEM_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+extern struct afu_mf_drv he_mem_tg_drv;
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#endif /* _HE_MEM_H_ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
new file mode 100644
index 0000000..f304bc8
--- /dev/null
+++ b/drivers/raw/afu_mf/meson.build
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2022 Intel Corporation
+
+deps += ['rawdev', 'bus_pci', 'bus_ifpga']
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
+ 'he_hssi.c')
+
+headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/n3000_afu.c b/drivers/raw/afu_mf/n3000_afu.c
new file mode 100644
index 0000000..420e84a
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.c
@@ -0,0 +1,1997 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+
+static int nlb_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12lu %7.3f GB/s %7.3f GB/s\n", cl,
+ stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->src_iova),
+ ctx->addr + CSR_SRC_ADDR);
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->dest_iova),
+ ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CACHE_LINE_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CACHE_LINE_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CACHE_LINE_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ return 0;
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)host_addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)src, ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)src, ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)host_addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)dst = rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)dst = rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ AFU_MF_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ AFU_MF_PMD_ERR("Timeout");
+ ret = -ETIME;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ AFU_MF_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ AFU_MF_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
+ AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ AFU_MF_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ AFU_MF_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)src, ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double getTime(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ AFU_MF_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ AFU_MF_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint64_t)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_mf_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+
+static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ AFU_MF_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release:
+ nlb_afu_ctx_release(dev);
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ AFU_MF_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ AFU_MF_PMD_ERR("DMA interrupt setup failed");
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ AFU_MF_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ AFU_MF_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ AFU_MF_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t%p\n", (void *)ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t%p\n", (void *)ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t%p\n", (void *)ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t%p\n", (void *)ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_mf_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_mf_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+struct afu_mf_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
diff --git a/drivers/raw/afu_mf/n3000_afu.h b/drivers/raw/afu_mf/n3000_afu.h
new file mode 100644
index 0000000..4c740da
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.h
@@ -0,0 +1,333 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _N3000_AFU_H_
+#define _N3000_AFU_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+extern struct afu_mf_drv n3000_afu_drv;
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#endif /* _N3000_AFU_H_ */
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
new file mode 100644
index 0000000..89d866a
--- /dev/null
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+/**
+ * HE-LBK & HE-MEM-LBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[3];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
diff --git a/drivers/raw/afu_mf/version.map b/drivers/raw/afu_mf/version.map
new file mode 100644
index 0000000..c2e0723
--- /dev/null
+++ b/drivers/raw/afu_mf/version.map
@@ -0,0 +1,3 @@
+DPDK_22 {
+ local: *;
+};
diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build
index 05e7de1..c3627f7 100644
--- a/drivers/raw/meson.build
+++ b/drivers/raw/meson.build
@@ -6,6 +6,7 @@ if is_windows
endif
drivers = [
+ 'afu_mf',
'cnxk_bphy',
'cnxk_gpio',
'dpaa2_cmdif',
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v3] raw/afu_mf: introduce AFU MF device driver
2022-05-17 7:34 ` [PATCH v2] " Wei Huang
@ 2022-05-19 2:43 ` Wei Huang
2022-05-19 5:52 ` [PATCH v4] " Wei Huang
0 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-05-19 2:43 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
Add afu_mf driver to manage various AFU (Acceleration Function Unit)
in FPGA.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
---
v2: fix typo
---
v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
drivers/raw/afu_mf/afu_mf_rawdev.h | 91 ++
drivers/raw/afu_mf/he_hssi.c | 369 +++++++
drivers/raw/afu_mf/he_hssi.h | 102 ++
drivers/raw/afu_mf/he_lbk.c | 430 ++++++++
drivers/raw/afu_mf/he_lbk.h | 121 +++
drivers/raw/afu_mf/he_mem.c | 181 ++++
drivers/raw/afu_mf/he_mem.h | 40 +
drivers/raw/afu_mf/meson.build | 8 +
drivers/raw/afu_mf/n3000_afu.c | 2007 ++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
drivers/raw/afu_mf/version.map | 3 +
drivers/raw/meson.build | 1 +
14 files changed, 4260 insertions(+)
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
create mode 100644 drivers/raw/afu_mf/he_hssi.c
create mode 100644 drivers/raw/afu_mf/he_hssi.h
create mode 100644 drivers/raw/afu_mf/he_lbk.c
create mode 100644 drivers/raw/afu_mf/he_lbk.h
create mode 100644 drivers/raw/afu_mf/he_mem.c
create mode 100644 drivers/raw/afu_mf/he_mem.h
create mode 100644 drivers/raw/afu_mf/meson.build
create mode 100644 drivers/raw/afu_mf/n3000_afu.c
create mode 100644 drivers/raw/afu_mf/n3000_afu.h
create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
create mode 100644 drivers/raw/afu_mf/version.map
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
new file mode 100644
index 0000000..f24c748
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -0,0 +1,440 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "rte_pmd_afu.h"
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+#include "he_lbk.h"
+#include "he_mem.h"
+#include "he_hssi.h"
+
+#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
+
+static const struct rte_afu_uuid afu_uuid_map[] = {
+ { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ { 0, 0 /* sentinel */ }
+};
+
+static struct afu_mf_drv *afu_table[] = {
+ &n3000_afu_drv,
+ &he_lbk_drv,
+ &he_mem_lbk_drv,
+ &he_mem_tg_drv,
+ &he_hssi_drv,
+ NULL
+};
+
+static inline int afu_mf_trylock(struct afu_mf_rawdev *dev)
+{
+ int32_t x = 0;
+
+ if (!dev || !dev->shared)
+ return -ENODEV;
+
+ x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
+
+ if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x, 1,
+ 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED) == 0))
+ return -EBUSY;
+
+ return 0;
+}
+
+static inline void afu_mf_unlock(struct afu_mf_rawdev *dev)
+{
+ if (!dev || !dev->shared)
+ return;
+
+ __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE);
+}
+
+static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_mf_unlock(dev);
+}
+
+static int afu_mf_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_mf_rawdev_configure,
+ .dev_start = afu_mf_rawdev_start,
+ .dev_stop = afu_mf_rawdev_stop,
+ .dev_close = afu_mf_rawdev_close,
+ .dev_reset = afu_mf_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_mf_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_mf_rawdev_selftest,
+};
+
+static int
+afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
+ int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_mf_shared *ptr = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name,
+ sizeof(struct afu_mf_shared),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ ptr = (struct afu_mf_shared *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ ptr->lock = 0;
+
+ *data = ptr;
+
+ return 0;
+}
+
+static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ AFU_MF_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_mf_drv *entry = NULL;
+ int i = 0;
+
+ if (!afu_id)
+ return NULL;
+
+ while ((entry = afu_table[i++])) {
+ if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
+ (entry->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return entry ? entry->ops : NULL;
+}
+
+static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_mf_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_mf_rawdev),
+ socket_id);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_mf_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ AFU_MF_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ AFU_MF_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_mf_pmd_drv = {
+ .id_table = afu_uuid_map,
+ .probe = afu_mf_rawdev_probe,
+ .remove = afu_mf_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME, afu_mf_pmd_drv);
+RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h b/drivers/raw/afu_mf/afu_mf_rawdev.h
new file mode 100644
index 0000000..610a103
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_MF_RAWDEV_H__
+#define __AFU_MF_RAWDEV_H__
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_cycles.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+extern int afu_mf_pmd_logtype;
+
+#define AFU_MF_PMD_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n", \
+ __func__, ##args)
+
+#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
+
+#define AFU_MF_PMD_DEBUG(fmt, args...) \
+ AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
+#define AFU_MF_PMD_INFO(fmt, args...) \
+ AFU_MF_PMD_LOG(INFO, fmt, ## args)
+#define AFU_MF_PMD_ERR(fmt, args...) \
+ AFU_MF_PMD_LOG(ERR, fmt, ## args)
+#define AFU_MF_PMD_WARN(fmt, args...) \
+ AFU_MF_PMD_LOG(WARNING, fmt, ## args)
+
+#ifndef CACHE_LINE_SIZE
+#define CACHE_LINE_SIZE(n) ((n) << 6)
+#endif
+#define CACHE_LINE_ALIGNED(n) ((n) >> 6)
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
+struct afu_mf_rawdev;
+
+struct afu_mf_ops {
+ int (*init)(struct afu_mf_rawdev *dev);
+ int (*config)(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_mf_rawdev *dev);
+ int (*stop)(struct afu_mf_rawdev *dev);
+ int (*test)(struct afu_mf_rawdev *dev);
+ int (*close)(struct afu_mf_rawdev *dev);
+ int (*reset)(struct afu_mf_rawdev *dev);
+ int (*dump)(struct afu_mf_rawdev *dev, FILE *f);
+};
+
+struct afu_mf_drv {
+ struct rte_afu_uuid uuid;
+ struct afu_mf_ops *ops;
+};
+
+struct afu_mf_shared {
+ int32_t lock;
+};
+
+struct afu_mf_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_mf_shared *shared; /* shared data for multi-process */
+ struct afu_mf_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_mf_rawdev *
+afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private : NULL;
+}
+
+#endif /* __AFU_MF_RAWDEV_H__ */
diff --git a/drivers/raw/afu_mf/he_hssi.c b/drivers/raw/afu_mf/he_hssi.c
new file mode 100644
index 0000000..bedafbd
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.c
@@ -0,0 +1,369 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ AFU_MF_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < 3; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
diff --git a/drivers/raw/afu_mf/he_hssi.h b/drivers/raw/afu_mf/he_hssi.h
new file mode 100644
index 0000000..f8b9623
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_HSSI_H_
+#define _HE_HSSI_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+extern struct afu_mf_drv he_hssi_drv;
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#endif /* _HE_HSSI_H_ */
diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c
new file mode 100644
index 0000000..9e99b80
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.c
@@ -0,0 +1,430 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_lbk.h"
+
+static int he_lbk_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_dsm_status *stat = NULL;
+ struct he_lbk_status0 stat0;
+ struct he_lbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ AFU_MF_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12"PRIu64
+ " %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lbk_test(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->src_iova),
+ ctx->addr + CSR_SRC_ADDR);
+
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->dest_iova),
+ ctx->addr + CSR_DST_ADDR);
+
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(CACHE_LINE_ALIGNED(ctx->dsm_iova),
+ ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(CACHE_LINE_ALIGNED(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CACHE_LINE_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CACHE_LINE_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CACHE_LINE_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lbk_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lbk_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release:
+ he_lbk_ctx_release(dev);
+ return ret;
+}
+
+static int he_lbk_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lbk_ctx_init(dev);
+}
+
+static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
+
+ return 0;
+}
+
+static int he_lbk_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_lbk_ops = {
+ .init = he_lbk_init,
+ .config = he_lbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lbk_test,
+ .close = he_lbk_close,
+ .dump = he_lbk_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_lbk_drv = {
+ .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
+
+struct afu_mf_drv he_mem_lbk_drv = {
+ .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h
new file mode 100644
index 0000000..c2e8a29
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_LBK_H_
+#define _HE_LBK_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LBK_UUID_L 0xb94b12284c31e02b
+#define HE_LBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LBK_UUID_H 0x8568ab4e6ba54616
+
+extern struct afu_mf_drv he_lbk_drv;
+extern struct afu_mf_drv he_mem_lbk_drv;
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lbk_dsm_status *status_ptr;
+};
+
+struct he_lbk_priv {
+ struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
+ struct he_lbk_ctx he_lbk_ctx;
+};
+
+#endif /* _HE_LBK_H_ */
diff --git a/drivers/raw/afu_mf/he_mem.c b/drivers/raw/afu_mf/he_mem.c
new file mode 100644
index 0000000..ccbb3a8
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.c
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_mem.h"
+
+static int he_mem_tg_test(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ AFU_MF_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
diff --git a/drivers/raw/afu_mf/he_mem.h b/drivers/raw/afu_mf/he_mem.h
new file mode 100644
index 0000000..82404b6
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_MEM_H_
+#define _HE_MEM_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+extern struct afu_mf_drv he_mem_tg_drv;
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#endif /* _HE_MEM_H_ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
new file mode 100644
index 0000000..f304bc8
--- /dev/null
+++ b/drivers/raw/afu_mf/meson.build
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2022 Intel Corporation
+
+deps += ['rawdev', 'bus_pci', 'bus_ifpga']
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
+ 'he_hssi.c')
+
+headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/n3000_afu.c b/drivers/raw/afu_mf/n3000_afu.c
new file mode 100644
index 0000000..9b48125
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.c
@@ -0,0 +1,2007 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+
+static int nlb_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CACHE_LINE_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
+ cl, stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->src_iova),
+ ctx->addr + CSR_SRC_ADDR);
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(CACHE_LINE_ALIGNED(ctx->dest_iova),
+ ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CACHE_LINE_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CACHE_LINE_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CACHE_LINE_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ return 0;
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ AFU_MF_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ AFU_MF_PMD_ERR("Timeout");
+ ret = -ETIMEDOUT;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ AFU_MF_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ AFU_MF_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
+ AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ AFU_MF_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ AFU_MF_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
+ ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(uintptr_t)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(uintptr_t)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(uintptr_t)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(uintptr_t)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (0x%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double getTime(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ AFU_MF_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ AFU_MF_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_mf_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+#ifdef VFIO_PRESENT
+static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+#endif
+
+static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ AFU_MF_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release:
+ nlb_afu_ctx_release(dev);
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ AFU_MF_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+#ifdef VFIO_PRESENT
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ AFU_MF_PMD_ERR("DMA interrupt setup failed");
+#endif
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ AFU_MF_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ AFU_MF_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ AFU_MF_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_mf_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_mf_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+struct afu_mf_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
diff --git a/drivers/raw/afu_mf/n3000_afu.h b/drivers/raw/afu_mf/n3000_afu.h
new file mode 100644
index 0000000..4c740da
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.h
@@ -0,0 +1,333 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _N3000_AFU_H_
+#define _N3000_AFU_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+extern struct afu_mf_drv n3000_afu_drv;
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#endif /* _N3000_AFU_H_ */
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
new file mode 100644
index 0000000..89d866a
--- /dev/null
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+/**
+ * HE-LBK & HE-MEM-LBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[3];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
diff --git a/drivers/raw/afu_mf/version.map b/drivers/raw/afu_mf/version.map
new file mode 100644
index 0000000..c2e0723
--- /dev/null
+++ b/drivers/raw/afu_mf/version.map
@@ -0,0 +1,3 @@
+DPDK_22 {
+ local: *;
+};
diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build
index 05e7de1..c3627f7 100644
--- a/drivers/raw/meson.build
+++ b/drivers/raw/meson.build
@@ -6,6 +6,7 @@ if is_windows
endif
drivers = [
+ 'afu_mf',
'cnxk_bphy',
'cnxk_gpio',
'dpaa2_cmdif',
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v4] raw/afu_mf: introduce AFU MF device driver
2022-05-19 2:43 ` [PATCH v3] " Wei Huang
@ 2022-05-19 5:52 ` Wei Huang
2022-05-26 6:51 ` Xu, Rosen
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
0 siblings, 2 replies; 57+ messages in thread
From: Wei Huang @ 2022-05-19 5:52 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
Add afu_mf driver to manage various AFU (Acceleration Function Unit)
in FPGA.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
---
v2: fix typo
---
v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
---
v4: fix coding style issue and build error in FreeBSD13-64
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
drivers/raw/afu_mf/afu_mf_rawdev.h | 89 ++
drivers/raw/afu_mf/he_hssi.c | 369 +++++++
drivers/raw/afu_mf/he_hssi.h | 102 ++
drivers/raw/afu_mf/he_lbk.c | 427 ++++++++
drivers/raw/afu_mf/he_lbk.h | 121 +++
drivers/raw/afu_mf/he_mem.c | 181 ++++
drivers/raw/afu_mf/he_mem.h | 40 +
drivers/raw/afu_mf/meson.build | 8 +
drivers/raw/afu_mf/n3000_afu.c | 2005 ++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
drivers/raw/afu_mf/version.map | 3 +
drivers/raw/meson.build | 1 +
14 files changed, 4253 insertions(+)
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
create mode 100644 drivers/raw/afu_mf/he_hssi.c
create mode 100644 drivers/raw/afu_mf/he_hssi.h
create mode 100644 drivers/raw/afu_mf/he_lbk.c
create mode 100644 drivers/raw/afu_mf/he_lbk.h
create mode 100644 drivers/raw/afu_mf/he_mem.c
create mode 100644 drivers/raw/afu_mf/he_mem.h
create mode 100644 drivers/raw/afu_mf/meson.build
create mode 100644 drivers/raw/afu_mf/n3000_afu.c
create mode 100644 drivers/raw/afu_mf/n3000_afu.h
create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
create mode 100644 drivers/raw/afu_mf/version.map
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
new file mode 100644
index 0000000..f24c748
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -0,0 +1,440 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "rte_pmd_afu.h"
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+#include "he_lbk.h"
+#include "he_mem.h"
+#include "he_hssi.h"
+
+#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
+
+static const struct rte_afu_uuid afu_uuid_map[] = {
+ { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ { 0, 0 /* sentinel */ }
+};
+
+static struct afu_mf_drv *afu_table[] = {
+ &n3000_afu_drv,
+ &he_lbk_drv,
+ &he_mem_lbk_drv,
+ &he_mem_tg_drv,
+ &he_hssi_drv,
+ NULL
+};
+
+static inline int afu_mf_trylock(struct afu_mf_rawdev *dev)
+{
+ int32_t x = 0;
+
+ if (!dev || !dev->shared)
+ return -ENODEV;
+
+ x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
+
+ if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x, 1,
+ 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED) == 0))
+ return -EBUSY;
+
+ return 0;
+}
+
+static inline void afu_mf_unlock(struct afu_mf_rawdev *dev)
+{
+ if (!dev || !dev->shared)
+ return;
+
+ __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE);
+}
+
+static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_mf_unlock(dev);
+}
+
+static int afu_mf_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_mf_rawdev_configure,
+ .dev_start = afu_mf_rawdev_start,
+ .dev_stop = afu_mf_rawdev_stop,
+ .dev_close = afu_mf_rawdev_close,
+ .dev_reset = afu_mf_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_mf_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_mf_rawdev_selftest,
+};
+
+static int
+afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
+ int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_mf_shared *ptr = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name,
+ sizeof(struct afu_mf_shared),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ ptr = (struct afu_mf_shared *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ ptr->lock = 0;
+
+ *data = ptr;
+
+ return 0;
+}
+
+static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ AFU_MF_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_mf_drv *entry = NULL;
+ int i = 0;
+
+ if (!afu_id)
+ return NULL;
+
+ while ((entry = afu_table[i++])) {
+ if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
+ (entry->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return entry ? entry->ops : NULL;
+}
+
+static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_mf_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_mf_rawdev),
+ socket_id);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_mf_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ AFU_MF_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ AFU_MF_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_mf_pmd_drv = {
+ .id_table = afu_uuid_map,
+ .probe = afu_mf_rawdev_probe,
+ .remove = afu_mf_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME, afu_mf_pmd_drv);
+RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h b/drivers/raw/afu_mf/afu_mf_rawdev.h
new file mode 100644
index 0000000..5a66f6c
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_MF_RAWDEV_H__
+#define __AFU_MF_RAWDEV_H__
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_cycles.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+extern int afu_mf_pmd_logtype;
+
+#define AFU_MF_PMD_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n", \
+ __func__, ##args)
+
+#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
+
+#define AFU_MF_PMD_DEBUG(fmt, args...) \
+ AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
+#define AFU_MF_PMD_INFO(fmt, args...) \
+ AFU_MF_PMD_LOG(INFO, fmt, ## args)
+#define AFU_MF_PMD_ERR(fmt, args...) \
+ AFU_MF_PMD_LOG(ERR, fmt, ## args)
+#define AFU_MF_PMD_WARN(fmt, args...) \
+ AFU_MF_PMD_LOG(WARNING, fmt, ## args)
+
+#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
+#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines */
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
+struct afu_mf_rawdev;
+
+struct afu_mf_ops {
+ int (*init)(struct afu_mf_rawdev *dev);
+ int (*config)(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_mf_rawdev *dev);
+ int (*stop)(struct afu_mf_rawdev *dev);
+ int (*test)(struct afu_mf_rawdev *dev);
+ int (*close)(struct afu_mf_rawdev *dev);
+ int (*reset)(struct afu_mf_rawdev *dev);
+ int (*dump)(struct afu_mf_rawdev *dev, FILE *f);
+};
+
+struct afu_mf_drv {
+ struct rte_afu_uuid uuid;
+ struct afu_mf_ops *ops;
+};
+
+struct afu_mf_shared {
+ int32_t lock;
+};
+
+struct afu_mf_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_mf_shared *shared; /* shared data for multi-process */
+ struct afu_mf_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_mf_rawdev *
+afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private : NULL;
+}
+
+#endif /* __AFU_MF_RAWDEV_H__ */
diff --git a/drivers/raw/afu_mf/he_hssi.c b/drivers/raw/afu_mf/he_hssi.c
new file mode 100644
index 0000000..bedafbd
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.c
@@ -0,0 +1,369 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ AFU_MF_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < 3; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
diff --git a/drivers/raw/afu_mf/he_hssi.h b/drivers/raw/afu_mf/he_hssi.h
new file mode 100644
index 0000000..f8b9623
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_HSSI_H_
+#define _HE_HSSI_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+extern struct afu_mf_drv he_hssi_drv;
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#endif /* _HE_HSSI_H_ */
diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c
new file mode 100644
index 0000000..8735647
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.c
@@ -0,0 +1,427 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_lbk.h"
+
+static int he_lbk_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_dsm_status *stat = NULL;
+ struct he_lbk_status0 stat0;
+ struct he_lbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ AFU_MF_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12"PRIu64
+ " %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lbk_test(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lbk_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lbk_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release:
+ he_lbk_ctx_release(dev);
+ return ret;
+}
+
+static int he_lbk_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lbk_ctx_init(dev);
+}
+
+static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
+
+ return 0;
+}
+
+static int he_lbk_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_lbk_ops = {
+ .init = he_lbk_init,
+ .config = he_lbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lbk_test,
+ .close = he_lbk_close,
+ .dump = he_lbk_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_lbk_drv = {
+ .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
+
+struct afu_mf_drv he_mem_lbk_drv = {
+ .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h
new file mode 100644
index 0000000..c2e8a29
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_LBK_H_
+#define _HE_LBK_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LBK_UUID_L 0xb94b12284c31e02b
+#define HE_LBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LBK_UUID_H 0x8568ab4e6ba54616
+
+extern struct afu_mf_drv he_lbk_drv;
+extern struct afu_mf_drv he_mem_lbk_drv;
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lbk_dsm_status *status_ptr;
+};
+
+struct he_lbk_priv {
+ struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
+ struct he_lbk_ctx he_lbk_ctx;
+};
+
+#endif /* _HE_LBK_H_ */
diff --git a/drivers/raw/afu_mf/he_mem.c b/drivers/raw/afu_mf/he_mem.c
new file mode 100644
index 0000000..ccbb3a8
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.c
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_mem.h"
+
+static int he_mem_tg_test(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ AFU_MF_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
diff --git a/drivers/raw/afu_mf/he_mem.h b/drivers/raw/afu_mf/he_mem.h
new file mode 100644
index 0000000..82404b6
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_MEM_H_
+#define _HE_MEM_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+extern struct afu_mf_drv he_mem_tg_drv;
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#endif /* _HE_MEM_H_ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
new file mode 100644
index 0000000..f304bc8
--- /dev/null
+++ b/drivers/raw/afu_mf/meson.build
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2022 Intel Corporation
+
+deps += ['rawdev', 'bus_pci', 'bus_ifpga']
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
+ 'he_hssi.c')
+
+headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/n3000_afu.c b/drivers/raw/afu_mf/n3000_afu.c
new file mode 100644
index 0000000..19d7c54
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.c
@@ -0,0 +1,2005 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+
+static int nlb_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
+ cl, stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ return 0;
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ AFU_MF_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ AFU_MF_PMD_ERR("Timeout");
+ ret = -ETIMEDOUT;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ AFU_MF_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ AFU_MF_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
+ AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ AFU_MF_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ AFU_MF_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
+ ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(uintptr_t)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(uintptr_t)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(uintptr_t)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(uintptr_t)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double getTime(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ AFU_MF_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ AFU_MF_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_mf_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+#ifdef VFIO_PRESENT
+static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+#endif
+
+static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ AFU_MF_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release:
+ nlb_afu_ctx_release(dev);
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ AFU_MF_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+#ifdef VFIO_PRESENT
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ AFU_MF_PMD_ERR("DMA interrupt setup failed");
+#endif
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ AFU_MF_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ AFU_MF_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ AFU_MF_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_mf_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_mf_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+struct afu_mf_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
diff --git a/drivers/raw/afu_mf/n3000_afu.h b/drivers/raw/afu_mf/n3000_afu.h
new file mode 100644
index 0000000..4c740da
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.h
@@ -0,0 +1,333 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _N3000_AFU_H_
+#define _N3000_AFU_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+extern struct afu_mf_drv n3000_afu_drv;
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#endif /* _N3000_AFU_H_ */
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
new file mode 100644
index 0000000..89d866a
--- /dev/null
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+/**
+ * HE-LBK & HE-MEM-LBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[3];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
diff --git a/drivers/raw/afu_mf/version.map b/drivers/raw/afu_mf/version.map
new file mode 100644
index 0000000..c2e0723
--- /dev/null
+++ b/drivers/raw/afu_mf/version.map
@@ -0,0 +1,3 @@
+DPDK_22 {
+ local: *;
+};
diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build
index 05e7de1..c3627f7 100644
--- a/drivers/raw/meson.build
+++ b/drivers/raw/meson.build
@@ -6,6 +6,7 @@ if is_windows
endif
drivers = [
+ 'afu_mf',
'cnxk_bphy',
'cnxk_gpio',
'dpaa2_cmdif',
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v4] raw/afu_mf: introduce AFU MF device driver
2022-05-19 5:52 ` [PATCH v4] " Wei Huang
@ 2022-05-26 6:51 ` Xu, Rosen
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
1 sibling, 0 replies; 57+ messages in thread
From: Xu, Rosen @ 2022-05-26 6:51 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
Hi Wei,
A huge patch, can you split it into several patches?
Thanks,
Rosen
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, May 19, 2022 13:53
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v4] raw/afu_mf: introduce AFU MF device driver
>
> Add afu_mf driver to manage various AFU (Acceleration Function Unit)
> in FPGA.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
> ---
> v2: fix typo
> ---
> v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> ---
> v4: fix coding style issue and build error in FreeBSD13-64
> ---
> drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
> drivers/raw/afu_mf/afu_mf_rawdev.h | 89 ++
> drivers/raw/afu_mf/he_hssi.c | 369 +++++++
> drivers/raw/afu_mf/he_hssi.h | 102 ++
> drivers/raw/afu_mf/he_lbk.c | 427 ++++++++
> drivers/raw/afu_mf/he_lbk.h | 121 +++
> drivers/raw/afu_mf/he_mem.c | 181 ++++
> drivers/raw/afu_mf/he_mem.h | 40 +
> drivers/raw/afu_mf/meson.build | 8 +
> drivers/raw/afu_mf/n3000_afu.c | 2005
> ++++++++++++++++++++++++++++++++++++
> drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
> drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
> drivers/raw/afu_mf/version.map | 3 +
> drivers/raw/meson.build | 1 +
> 14 files changed, 4253 insertions(+)
> create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
> create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
> create mode 100644 drivers/raw/afu_mf/he_hssi.c
> create mode 100644 drivers/raw/afu_mf/he_hssi.h
> create mode 100644 drivers/raw/afu_mf/he_lbk.c
> create mode 100644 drivers/raw/afu_mf/he_lbk.h
> create mode 100644 drivers/raw/afu_mf/he_mem.c
> create mode 100644 drivers/raw/afu_mf/he_mem.h
> create mode 100644 drivers/raw/afu_mf/meson.build
> create mode 100644 drivers/raw/afu_mf/n3000_afu.c
> create mode 100644 drivers/raw/afu_mf/n3000_afu.h
> create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
> create mode 100644 drivers/raw/afu_mf/version.map
>
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> b/drivers/raw/afu_mf/afu_mf_rawdev.c
> new file mode 100644
> index 0000000..f24c748
> --- /dev/null
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> @@ -0,0 +1,440 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memzone.h>
> +#include <rte_rawdev_pmd.h>
> +
> +#include "rte_pmd_afu.h"
> +#include "afu_mf_rawdev.h"
> +#include "n3000_afu.h"
> +#include "he_lbk.h"
> +#include "he_mem.h"
> +#include "he_hssi.h"
> +
> +#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> +
> +static const struct rte_afu_uuid afu_uuid_map[] = {
> + { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> + { HE_LBK_UUID_L, HE_LBK_UUID_H },
> + { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> + { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> + { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> + { 0, 0 /* sentinel */ }
> +};
> +
> +static struct afu_mf_drv *afu_table[] = {
> + &n3000_afu_drv,
> + &he_lbk_drv,
> + &he_mem_lbk_drv,
> + &he_mem_tg_drv,
> + &he_hssi_drv,
> + NULL
> +};
> +
> +static inline int afu_mf_trylock(struct afu_mf_rawdev *dev)
> +{
> + int32_t x = 0;
> +
> + if (!dev || !dev->shared)
> + return -ENODEV;
> +
> + x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
> +
> + if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock,
> &x, 1,
> + 1, __ATOMIC_ACQUIRE,
> __ATOMIC_RELAXED) == 0))
> + return -EBUSY;
> +
> + return 0;
> +}
> +
> +static inline void afu_mf_unlock(struct afu_mf_rawdev *dev)
> +{
> + if (!dev || !dev->shared)
> + return;
> +
> + __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE);
> +}
> +
> +static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
> + rte_rawdev_obj_t config, size_t config_size)
> +{
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->config)
> + ret = (*dev->ops->config)(dev, config, config_size);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_start(struct rte_rawdev *rawdev)
> +{
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please start it later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->start)
> + ret = (*dev->ops->start)(dev);
> +
> + afu_mf_unlock(dev);
> +
> + return ret;
> +}
> +
> +static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev)
> +{
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please stop it later");
> + return;
> + }
> +
> + if (dev->ops && dev->ops->stop)
> + ret = (*dev->ops->stop)(dev);
> +
> + afu_mf_unlock(dev);
> +}
> +
> +static int afu_mf_rawdev_close(struct rte_rawdev *rawdev)
> +{
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->close)
> + ret = (*dev->ops->close)(dev);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev)
> +{
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please reset it later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->reset)
> + ret = (*dev->ops->reset)(dev);
> +
> + afu_mf_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_selftest(uint16_t dev_id)
> +{
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> + return -ENODEV;
> +
> + dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
> + if (!dev)
> + return -ENOENT;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please test it later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->test)
> + ret = (*dev->ops->test)(dev);
> +
> + afu_mf_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
> +{
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->dump)
> + ret = (*dev->ops->dump)(dev, f);
> +
> + return ret;
> +}
> +
> +static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
> + .dev_info_get = NULL,
> + .dev_configure = afu_mf_rawdev_configure,
> + .dev_start = afu_mf_rawdev_start,
> + .dev_stop = afu_mf_rawdev_stop,
> + .dev_close = afu_mf_rawdev_close,
> + .dev_reset = afu_mf_rawdev_reset,
> +
> + .queue_def_conf = NULL,
> + .queue_setup = NULL,
> + .queue_release = NULL,
> + .queue_count = NULL,
> +
> + .attr_get = NULL,
> + .attr_set = NULL,
> +
> + .enqueue_bufs = NULL,
> + .dequeue_bufs = NULL,
> +
> + .dump = afu_mf_rawdev_dump,
> +
> + .xstats_get = NULL,
> + .xstats_get_names = NULL,
> + .xstats_get_by_name = NULL,
> + .xstats_reset = NULL,
> +
> + .firmware_status_get = NULL,
> + .firmware_version_get = NULL,
> + .firmware_load = NULL,
> + .firmware_unload = NULL,
> +
> + .dev_selftest = afu_mf_rawdev_selftest,
> +};
> +
> +static int
> +afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
> + int socket_id)
> +{
> + const struct rte_memzone *mz;
> + char mz_name[RTE_MEMZONE_NAMESIZE];
> + struct afu_mf_shared *ptr = NULL;
> + int init_mz = 0;
> +
> + if (!name || !data)
> + return -EINVAL;
> +
> + /* name format is afu_?|??:??.? which is unique */
> + snprintf(mz_name, sizeof(mz_name), "%s", name);
> +
> + mz = rte_memzone_lookup(mz_name);
> + if (!mz) {
> + mz = rte_memzone_reserve(mz_name,
> + sizeof(struct afu_mf_shared),
> + socket_id, 0);
> + init_mz = 1;
> + }
> +
> + if (!mz) {
> + AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
> + mz_name);
> + return -ENOMEM;
> + }
> +
> + ptr = (struct afu_mf_shared *)mz->addr;
> +
> + if (init_mz) /* initialize memory zone on the first time */
> + ptr->lock = 0;
> +
> + *data = ptr;
> +
> + return 0;
> +}
> +
> +static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev, char
> *name,
> + size_t size)
> +{
> + int n = 0;
> +
> + if (!afu_dev || !name || !size)
> + return -EINVAL;
> +
> + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> + if (n >= (int)size) {
> + AFU_MF_PMD_ERR("Name of AFU device is too long!");
> + return -ENAMETOOLONG;
> + }
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id)
> +{
> + struct afu_mf_drv *entry = NULL;
> + int i = 0;
> +
> + if (!afu_id)
> + return NULL;
> +
> + while ((entry = afu_table[i++])) {
> + if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
> + (entry->uuid.uuid_high == afu_id->uuid_high))
> + break;
> + }
> +
> + return entry ? entry->ops : NULL;
> +}
> +
> +static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int
> socket_id)
> +{
> + struct rte_rawdev *rawdev = NULL;
> + struct afu_mf_rawdev *dev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
> + name, socket_id);
> +
> + /* Allocate device structure */
> + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct
> afu_mf_rawdev),
> + socket_id);
> + if (!rawdev) {
> + AFU_MF_PMD_ERR("Unable to allocate raw device");
> + return -ENOMEM;
> + }
> +
> + rawdev->dev_ops = &afu_mf_rawdev_ops;
> + rawdev->device = &afu_dev->device;
> + rawdev->driver_name = afu_dev->driver->driver.name;
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + goto cleanup;
> +
> + dev->rawdev = rawdev;
> + dev->port = afu_dev->id.port;
> + dev->addr = afu_dev->mem_resource[0].addr;
> + dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
> + if (dev->ops == NULL) {
> + AFU_MF_PMD_ERR("Unsupported AFU device");
> + goto cleanup;
> + }
> +
> + if (dev->ops->init) {
> + ret = (*dev->ops->init)(dev);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to init %s", name);
> + goto cleanup;
> + }
> + }
> +
> + ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
> + if (ret)
> + goto cleanup;
> +
> + return ret;
> +
> +cleanup:
> + rte_rawdev_pmd_release(rawdev);
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev)
> +{
> + struct rte_rawdev *rawdev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + AFU_MF_PMD_INFO("Destroy raw device %s", name);
> +
> + rawdev = rte_rawdev_pmd_get_named_dev(name);
> + if (!rawdev) {
> + AFU_MF_PMD_ERR("Raw device %s not found", name);
> + return -EINVAL;
> + }
> +
> + /* rte_rawdev_close is called by pmd_release */
> + ret = rte_rawdev_pmd_release(rawdev);
> + if (ret)
> + AFU_MF_PMD_DEBUG("Device cleanup failed");
> +
> + return 0;
> +}
> +
> +static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev)
> +{
> + AFU_MF_PMD_FUNC_TRACE();
> + return afu_mf_rawdev_create(afu_dev, rte_socket_id());
> +}
> +
> +static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev)
> +{
> + AFU_MF_PMD_FUNC_TRACE();
> + return afu_mf_rawdev_destroy(afu_dev);
> +}
> +
> +static struct rte_afu_driver afu_mf_pmd_drv = {
> + .id_table = afu_uuid_map,
> + .probe = afu_mf_rawdev_probe,
> + .remove = afu_mf_rawdev_remove
> +};
> +
> +RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME,
> afu_mf_pmd_drv);
> +RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h
> b/drivers/raw/afu_mf/afu_mf_rawdev.h
> new file mode 100644
> index 0000000..5a66f6c
> --- /dev/null
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
> @@ -0,0 +1,89 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __AFU_MF_RAWDEV_H__
> +#define __AFU_MF_RAWDEV_H__
> +
> +#include <stdint.h>
> +#include <stdio.h>
> +#include <unistd.h>
> +
> +#include <rte_cycles.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +extern int afu_mf_pmd_logtype;
> +
> +#define AFU_MF_PMD_LOG(level, fmt, args...) \
> + rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n",
> \
> + __func__, ##args)
> +
> +#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
> +
> +#define AFU_MF_PMD_DEBUG(fmt, args...) \
> + AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
> +#define AFU_MF_PMD_INFO(fmt, args...) \
> + AFU_MF_PMD_LOG(INFO, fmt, ## args)
> +#define AFU_MF_PMD_ERR(fmt, args...) \
> + AFU_MF_PMD_LOG(ERR, fmt, ## args)
> +#define AFU_MF_PMD_WARN(fmt, args...) \
> + AFU_MF_PMD_LOG(WARNING, fmt, ## args)
> +
> +#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
> +#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines
> */
> +#define MHZ(f) ((f) * 1000000)
> +
> +#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
> +({ \
> + uint64_t __wait = 0; \
> + uint64_t __invl = (invl); \
> + uint64_t __timeout = (timeout); \
> + for (; __wait <= __timeout; __wait += __invl) { \
> + (val) = *(addr); \
> + if (cond) \
> + break; \
> + rte_delay_ms(__invl); \
> + } \
> + (cond) ? 0 : 1; \
> +})
> +
> +struct afu_mf_rawdev;
> +
> +struct afu_mf_ops {
> + int (*init)(struct afu_mf_rawdev *dev);
> + int (*config)(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size);
> + int (*start)(struct afu_mf_rawdev *dev);
> + int (*stop)(struct afu_mf_rawdev *dev);
> + int (*test)(struct afu_mf_rawdev *dev);
> + int (*close)(struct afu_mf_rawdev *dev);
> + int (*reset)(struct afu_mf_rawdev *dev);
> + int (*dump)(struct afu_mf_rawdev *dev, FILE *f);
> +};
> +
> +struct afu_mf_drv {
> + struct rte_afu_uuid uuid;
> + struct afu_mf_ops *ops;
> +};
> +
> +struct afu_mf_shared {
> + int32_t lock;
> +};
> +
> +struct afu_mf_rawdev {
> + struct rte_rawdev *rawdev; /* point to parent raw device */
> + struct afu_mf_shared *shared; /* shared data for multi-process */
> + struct afu_mf_ops *ops; /* device operation functions */
> + int port; /* index of port the AFU attached */
> + void *addr; /* base address of AFU registers */
> + void *priv; /* private driver data */
> +};
> +
> +static inline struct afu_mf_rawdev *
> +afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev)
> +{
> + return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private :
> NULL;
> +}
> +
> +#endif /* __AFU_MF_RAWDEV_H__ */
> diff --git a/drivers/raw/afu_mf/he_hssi.c b/drivers/raw/afu_mf/he_hssi.c
> new file mode 100644
> index 0000000..bedafbd
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_hssi.c
> @@ -0,0 +1,369 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "he_hssi.h"
> +
> +static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr,
> value);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + data.write_data = value;
> + rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
> +
> + cmd.csr = 0;
> + cmd.write_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + return 0;
> +}
> +
> +static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t *value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + cmd.csr = 0;
> + cmd.read_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans) {
> + data.csr = rte_read64(ctx->addr +
> TRAFFIC_CTRL_DATA);
> + *value = data.read_data;
> + break;
> + }
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr,
> *value);
> + return 0;
> +}
> +
> +static void he_hssi_report(struct he_hssi_ctx *ctx)
> +{
> + uint32_t val = 0;
> + uint64_t v64 = 0;
> + int ret = 0;
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
> + if (ret)
> + return;
> + printf("Number of good packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
> + if (ret)
> + return;
> + printf("Number of bad packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
> + if (ret)
> + return;
> + v64 = val;
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
> + if (ret)
> + return;
> + v64 = (v64 << 32) | val;
> + printf("Number of bytes received: %"PRIu64"\n", v64);
> +
> + ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
> + if (ret)
> + return;
> + if (val & ERR_VALID) {
> + printf("AVST rx error:");
> + if (val & OVERFLOW_ERR)
> + printf(" overflow");
> + if (val & LENGTH_ERR)
> + printf(" length");
> + if (val & OVERSIZE_ERR)
> + printf(" oversize");
> + if (val & UNDERSIZE_ERR)
> + printf(" undersize");
> + if (val & MAC_CRC_ERR)
> + printf(" crc");
> + if (val & PHY_ERR)
> + printf(" phy");
> + printf("\n");
> + }
> +
> + ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
> + if (ret)
> + return;
> + if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
> + printf("FIFO status:");
> + if (val & ALMOST_EMPTY)
> + printf(" almost empty");
> + if (val & ALMOST_FULL)
> + printf(" almost full");
> + printf("\n");
> + }
> +}
> +
> +static int he_hssi_test(struct afu_mf_rawdev *dev)
> +{
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> + struct traffic_ctrl_ch_sel sel;
> + uint32_t val = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_hssi_cfg;
> + ctx = &priv->he_hssi_ctx;
> +
> + ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
> + if (ret)
> + return ret;
> +
> + sel.channel_sel = cfg->port;
> + rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
> +
> + if (cfg->he_loopback >= 0) {
> + val = cfg->he_loopback ? 1 : 0;
> + AFU_MF_PMD_INFO("%s HE loopback on port %u",
> + val ? "Enable" : "Disable", cfg->port);
> + return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
> + if (ret)
> + return ret;
> +
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
> + if (ret)
> + return ret;
> +
> + val = cfg->src_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->src_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->dest_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->dest_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_length ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_payload ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
> + if (ret)
> + return ret;
> +
> + for (i = 0; i < 3; i++) {
> + ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
> + cfg->rnd_seed[i]);
> + if (ret)
> + return ret;
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
> + if (ret)
> + return ret;
> +
> + while (i++ < cfg->timeout) {
> + ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
> + if (ret)
> + break;
> + if (val == cfg->num_packets)
> + break;
> + sleep(1);
> + }
> +
> + he_hssi_report(ctx);
> +
> + return ret;
> +}
> +
> +static int he_hssi_init(struct afu_mf_rawdev *dev)
> +{
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv) {
> + priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
> + if (!priv)
> + return -ENOMEM;
> + dev->priv = priv;
> + }
> +
> + ctx = &priv->he_hssi_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + return 0;
> +}
> +
> +static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
> + if (cfg->port >= NUM_HE_HSSI_PORTS)
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
> +
> + return 0;
> +}
> +
> +static int he_hssi_close(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f)
> +{
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_hssi_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops he_hssi_ops = {
> + .init = he_hssi_init,
> + .config = he_hssi_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_hssi_test,
> + .close = he_hssi_close,
> + .dump = he_hssi_dump,
> + .reset = NULL
> +};
> +
> +struct afu_mf_drv he_hssi_drv = {
> + .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> + .ops = &he_hssi_ops
> +};
> diff --git a/drivers/raw/afu_mf/he_hssi.h b/drivers/raw/afu_mf/he_hssi.h
> new file mode 100644
> index 0000000..f8b9623
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_hssi.h
> @@ -0,0 +1,102 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _HE_HSSI_H_
> +#define _HE_HSSI_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_HSSI_UUID_L 0xbb370242ac130002
> +#define HE_HSSI_UUID_H 0x823c334c98bf11ea
> +#define NUM_HE_HSSI_PORTS 8
> +
> +extern struct afu_mf_drv he_hssi_drv;
> +
> +/* HE-HSSI registers definition */
> +#define TRAFFIC_CTRL_CMD 0x30
> +#define TRAFFIC_CTRL_DATA 0x38
> +#define TRAFFIC_CTRL_CH_SEL 0x40
> +#define AFU_SCRATCHPAD 0x48
> +
> +#define TG_NUM_PKT 0x3c00
> +#define TG_PKT_LEN_TYPE 0x3c01
> +#define TG_DATA_PATTERN 0x3c02
> +#define TG_START_XFR 0x3c03
> +#define TG_STOP_XFR 0x3c04
> +#define TG_SRC_MAC_L 0x3c05
> +#define TG_SRC_MAC_H 0x3c06
> +#define TG_DST_MAC_L 0x3c07
> +#define TG_DST_MAC_H 0x3c08
> +#define TG_PKT_XFRD 0x3c09
> +#define TG_RANDOM_SEED(n) (0x3c0a + (n))
> +#define TG_PKT_LEN 0x3c0d
> +
> +#define TM_NUM_PKT 0x3d00
> +#define TM_PKT_GOOD 0x3d01
> +#define TM_PKT_BAD 0x3d02
> +#define TM_BYTE_CNT0 0x3d03
> +#define TM_BYTE_CNT1 0x3d04
> +#define TM_AVST_RX_ERR 0x3d07
> +#define OVERFLOW_ERR (1 << 9)
> +#define LENGTH_ERR (1 << 8)
> +#define OVERSIZE_ERR (1 << 7)
> +#define UNDERSIZE_ERR (1 << 6)
> +#define MAC_CRC_ERR (1 << 5)
> +#define PHY_ERR (1 << 4)
> +#define ERR_VALID (1 << 3)
> +
> +#define LOOPBACK_EN 0x3e00
> +#define LOOPBACK_FIFO_STATUS 0x3e01
> +#define ALMOST_EMPTY (1 << 1)
> +#define ALMOST_FULL (1 << 0)
> +
> +#define MAILBOX_TIMEOUT_MS 100
> +#define MAILBOX_POLL_INTERVAL_MS 10
> +
> +struct traffic_ctrl_cmd {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_cmd:1;
> + uint32_t write_cmd:1;
> + uint32_t ack_trans:1;
> + uint32_t rsvd1:29;
> + uint32_t afu_cmd_addr:16;
> + uint32_t rsvd2:16;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_data {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_data;
> + uint32_t write_data;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_ch_sel {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t channel_sel:3;
> + uint32_t rsvd1:29;
> + uint32_t rsvd2;
> + };
> + };
> +};
> +
> +struct he_hssi_ctx {
> + uint8_t *addr;
> +};
> +
> +struct he_hssi_priv {
> + struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
> + struct he_hssi_ctx he_hssi_ctx;
> +};
> +
> +#endif /* _HE_HSSI_H_ */
> diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c
> new file mode 100644
> index 0000000..8735647
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_lbk.c
> @@ -0,0 +1,427 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "he_lbk.h"
> +
> +static int he_lbk_afu_config(struct afu_mf_rawdev *dev)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> + struct he_lbk_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lbk_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + v.mode = cfg->mode;
> + v.trput_interleave = cfg->trput_interleave;
> + if (cfg->multi_cl == 4)
> + v.multicl_len = 2;
> + else
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> + struct he_lbk_dsm_status *stat = NULL;
> + struct he_lbk_status0 stat0;
> + struct he_lbk_status1 stat1;
> + uint64_t swtest_msg = 0;
> + uint64_t ticks = 0;
> + uint64_t info = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + cfg = &priv->he_lbk_cfg;
> + ctx = &priv->he_lbk_ctx;
> +
> + stat = ctx->status_ptr;
> +
> + swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
> + stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
> + stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0) {
> + info = rte_read64(ctx->addr + CSR_HE_INFO0);
> + AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
> + cfg->freq_mhz = info & 0xffff;
> + if (cfg->freq_mhz == 0) {
> + AFU_MF_PMD_INFO("Frequency of AFU clock is
> unknown."
> + " Assuming 350 MHz.");
> + cfg->freq_mhz = 350;
> + }
> + }
> +
> + num = (double)stat0.num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat0.num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Pend_Read
> Pend_Write "
> + "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
> + cfg->freq_mhz);
> + printf("%10u %10u %10u %10u %10u %12"PRIu64
> + " %7.3f GB/s %7.3f GB/s\n",
> + cl, stat0.num_reads, stat0.num_writes,
> + stat1.num_pend_reads, stat1.num_pend_writes,
> + ticks, rd_bw / 1e9, wr_bw / 1e9);
> + printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
> +}
> +
> +static int he_lbk_test(struct afu_mf_rawdev *dev)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> + struct he_lbk_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lbk_cfg;
> + ctx = &priv->he_lbk_ctx;
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + /* initialize DMA addresses */
> + AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr +
> CSR_SRC_ADDR);
> +
> + AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr +
> CSR_DST_ADDR);
> +
> + AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr +
> CSR_AFU_DSM_BASEL);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
> + ctx->addr + CSR_AFU_DSM_BASEH);
> +
> + ret = he_lbk_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + he_lbk_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + if (cfg->mode == NLB_MODE_LPBK) {
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + AFU_MF_PMD_ERR("Data mismatch
> @ %u", i);
> + break;
> + }
> + }
> + }
> + }
> +
> +end:
> + return 0;
> +}
> +
> +static int he_lbk_ctx_release(struct afu_mf_rawdev *dev)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lbk_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lbk_ctx_init(struct afu_mf_rawdev *dev)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lbk_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
> + return 0;
> +
> +release:
> + he_lbk_ctx_release(dev);
> + return ret;
> +}
> +
> +static int he_lbk_init(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return he_lbk_ctx_init(dev);
> +}
> +
> +static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
> + if (cfg->mode > NLB_MODE_TRPUT)
> + return -EINVAL;
> + if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
> + (cfg->multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin >
> MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
> +
> + return 0;
> +}
> +
> +static int he_lbk_close(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + he_lbk_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_lbk_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops he_lbk_ops = {
> + .init = he_lbk_init,
> + .config = he_lbk_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_lbk_test,
> + .close = he_lbk_close,
> + .dump = he_lbk_dump,
> + .reset = NULL
> +};
> +
> +struct afu_mf_drv he_lbk_drv = {
> + .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
> + .ops = &he_lbk_ops
> +};
> +
> +struct afu_mf_drv he_mem_lbk_drv = {
> + .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> + .ops = &he_lbk_ops
> +};
> diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h
> new file mode 100644
> index 0000000..c2e8a29
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_lbk.h
> @@ -0,0 +1,121 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _HE_LBK_H_
> +#define _HE_LBK_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_LBK_UUID_L 0xb94b12284c31e02b
> +#define HE_LBK_UUID_H 0x56e203e9864f49a7
> +#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb
> +#define HE_MEM_LBK_UUID_H 0x8568ab4e6ba54616
> +
> +extern struct afu_mf_drv he_lbk_drv;
> +extern struct afu_mf_drv he_mem_lbk_drv;
> +
> +/* HE-LBK & HE-MEM-LBK registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct he_lbk_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct he_lbk_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t rsvd1:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd2:13;
> + uint32_t trput_interleave:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t rsvd3:2;
> + };
> + };
> +};
> +
> +struct he_lbk_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct he_lbk_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct he_lbk_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +struct he_lbk_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct he_lbk_dsm_status *status_ptr;
> +};
> +
> +struct he_lbk_priv {
> + struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
> + struct he_lbk_ctx he_lbk_ctx;
> +};
> +
> +#endif /* _HE_LBK_H_ */
> diff --git a/drivers/raw/afu_mf/he_mem.c b/drivers/raw/afu_mf/he_mem.c
> new file mode 100644
> index 0000000..ccbb3a8
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_mem.c
> @@ -0,0 +1,181 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "he_mem.h"
> +
> +static int he_mem_tg_test(struct afu_mf_rawdev *dev)
> +{
> + struct he_mem_tg_priv *priv = NULL;
> + struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> + uint64_t value = 0x12345678;
> + uint64_t cap = 0;
> + uint64_t channel_mask = 0;
> + int i, t = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_mem_tg_cfg;
> + ctx = &priv->he_mem_tg_ctx;
> +
> + AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
> +
> + rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
> + cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
> + AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
> + if (cap != value) {
> + AFU_MF_PMD_ERR("Test scratchpad register failed");
> + return -EIO;
> + }
> +
> + cap = rte_read64(ctx->addr + MEM_TG_CTRL);
> + AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
> +
> + channel_mask = cfg->channel_mask & cap;
> + /* start traffic generators */
> + rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
> +
> + /* check test status */
> + while (t < MEM_TG_TIMEOUT_MS) {
> + value = rte_read64(ctx->addr + MEM_TG_STAT);
> + for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
> + if (channel_mask & (1 << i)) {
> + if (TGACTIVE(value, i))
> + continue;
> + printf("TG channel %d test %s\n", i,
> + TGPASS(value, i) ? "pass" :
> + TGTIMEOUT(value, i) ? "timeout" :
> + TGFAIL(value, i) ? "fail" : "error");
> + channel_mask &= ~(1 << i);
> + }
> + }
> + if (!channel_mask)
> + break;
> + rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
> + t += MEM_TG_POLL_INTERVAL_MS;
> + }
> +
> + if (channel_mask) {
> + AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned
> long)value);
> + return channel_mask;
> + }
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_init(struct afu_mf_rawdev *dev)
> +{
> + struct he_mem_tg_priv *priv = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv) {
> + priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
> + if (!priv)
> + return -ENOMEM;
> + dev->priv = priv;
> + }
> +
> + ctx = &priv->he_mem_tg_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_mem_tg_priv *priv = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv-
> >he_mem_tg_cfg));
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_close(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f)
> +{
> + struct he_mem_tg_priv *priv = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_mem_tg_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops he_mem_tg_ops = {
> + .init = he_mem_tg_init,
> + .config = he_mem_tg_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_mem_tg_test,
> + .close = he_mem_tg_close,
> + .dump = he_mem_tg_dump,
> + .reset = NULL
> +};
> +
> +struct afu_mf_drv he_mem_tg_drv = {
> + .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> + .ops = &he_mem_tg_ops
> +};
> diff --git a/drivers/raw/afu_mf/he_mem.h
> b/drivers/raw/afu_mf/he_mem.h
> new file mode 100644
> index 0000000..82404b6
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_mem.h
> @@ -0,0 +1,40 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _HE_MEM_H_
> +#define _HE_MEM_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
> +#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
> +
> +#define NUM_MEM_TG_CHANNELS 4
> +#define MEM_TG_TIMEOUT_MS 5000
> +#define MEM_TG_POLL_INTERVAL_MS 10
> +
> +extern struct afu_mf_drv he_mem_tg_drv;
> +
> +/* MEM-TG registers definition */
> +#define MEM_TG_SCRATCHPAD 0x28
> +#define MEM_TG_CTRL 0x30
> +#define TGCONTROL(n) (1 << (n))
> +#define MEM_TG_STAT 0x38
> +#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
> +#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
> +#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
> +#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
> +#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
> +
> +struct he_mem_tg_ctx {
> + uint8_t *addr;
> +};
> +
> +struct he_mem_tg_priv {
> + struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
> + struct he_mem_tg_ctx he_mem_tg_ctx;
> +};
> +
> +#endif /* _HE_MEM_H_ */
> diff --git a/drivers/raw/afu_mf/meson.build
> b/drivers/raw/afu_mf/meson.build
> new file mode 100644
> index 0000000..f304bc8
> --- /dev/null
> +++ b/drivers/raw/afu_mf/meson.build
> @@ -0,0 +1,8 @@
> +# SPDX-License-Identifier: BSD-3-Clause
> +# Copyright 2022 Intel Corporation
> +
> +deps += ['rawdev', 'bus_pci', 'bus_ifpga']
> +sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
> + 'he_hssi.c')
> +
> +headers = files('rte_pmd_afu.h')
> diff --git a/drivers/raw/afu_mf/n3000_afu.c
> b/drivers/raw/afu_mf/n3000_afu.c
> new file mode 100644
> index 0000000..19d7c54
> --- /dev/null
> +++ b/drivers/raw/afu_mf/n3000_afu.c
> @@ -0,0 +1,2005 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "n3000_afu.h"
> +
> +static int nlb_afu_config(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->nlb_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + if (cfg->cache_policy == NLB_WRPUSH_I)
> + v.wrpush_i = 1;
> + else
> + v.wrthru_en = cfg->cache_policy;
> +
> + if (cfg->cache_hint == NLB_RDLINE_MIXED)
> + v.rdsel = 3;
> + else
> + v.rdsel = cfg->cache_hint;
> +
> + v.mode = cfg->mode;
> + v.chsel = cfg->read_vc;
> + v.wr_chsel = cfg->write_vc;
> + v.wrfence_chsel = cfg->wrfence_vc;
> + v.wrthru_en = cfg->cache_policy;
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_dsm_status *stat = NULL;
> + uint64_t ticks = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + cfg = &priv->nlb_cfg;
> + stat = priv->nlb_ctx.status_ptr;
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0)
> + cfg->freq_mhz = 200;
> +
> + num = (double)stat->num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat->num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
> + "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
> + printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
> + cl, stat->num_reads, stat->num_writes, ticks,
> + rd_bw / 1e9, wr_bw / 1e9);
> +}
> +
> +static int nlb_afu_test(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + ctx = &priv->nlb_ctx;
> + cfg = &priv->nlb_cfg;
> +
> + /* initialize registers */
> + AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
> + rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr +
> CSR_SRC_ADDR);
> + AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr +
> CSR_DST_ADDR);
> +
> + ret = nlb_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl, ctx->addr + CSR_NUM_LINES);
> +
> + rte_delay_us(10);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + nlb_afu_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + AFU_MF_PMD_ERR("Data mismatch @ %u",
> i);
> + break;
> + }
> + }
> + }
> +
> +end:
> + return ret;
> +}
> +
> +static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
> +{
> + int i = 0;
> +
> + if (!ctx)
> + return;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + rte_free(ctx->dma_buf[i]);
> + ctx->dma_buf[i] = NULL;
> + }
> +
> + rte_free(ctx->data_buf);
> + ctx->data_buf = NULL;
> +
> + rte_free(ctx->ref_buf);
> + ctx->ref_buf = NULL;
> +}
> +
> +static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
> + struct rte_pmd_afu_dma_cfg *cfg)
> +{
> + size_t page_sz = sysconf(_SC_PAGE_SIZE);
> + int i, ret = 0;
> +
> + if (!ctx || !cfg)
> + return -EINVAL;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
> + TEST_MEM_ALIGN);
> + if (!ctx->dma_buf[i]) {
> + ret = -ENOMEM;
> + goto free;
> + }
> + ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
> + if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto free;
> + }
> + }
> +
> + ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->data_buf) {
> + ret = -ENOMEM;
> + goto free;
> + }
> +
> + ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->ref_buf) {
> + ret = -ENOMEM;
> + goto free;
> + }
> +
> + return 0;
> +
> +free:
> + dma_afu_buf_free(ctx);
> + return ret;
> +}
> +
> +static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
> +{
> + int *ptr = NULL;
> + size_t i = 0;
> + size_t dword_size = 0;
> +
> + if (!ctx || !size)
> + return;
> +
> + ptr = (int *)ctx->ref_buf;
> +
> + if (ctx->pattern) {
> + memset(ptr, ctx->pattern, size);
> + } else {
> + srand(99);
> + dword_size = size >> 2;
> + for (i = 0; i < dword_size; i++)
> + *ptr++ = rand();
> + }
> + rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
> +}
> +
> +static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
> +{
> + uint8_t *src = NULL;
> + uint8_t *dst = NULL;
> + size_t i = 0;
> + int n = 0;
> +
> + if (!ctx || !size)
> + return -EINVAL;
> +
> + src = (uint8_t *)ctx->ref_buf;
> + dst = (uint8_t *)ctx->data_buf;
> +
> + if (memcmp(src, dst, size)) {
> + printf("Transfer is corrupted\n");
> + if (ctx->verbose) {
> + for (i = 0; i < size; i++) {
> + if (*src != *dst) {
> + if (++n >= ERR_CHECK_LIMIT)
> + break;
> + printf("Mismatch at 0x%zx, "
> + "Expected %02x
> Actual %02x\n",
> + i, *src, *dst);
> + }
> + src++;
> + dst++;
> + }
> + if (n < ERR_CHECK_LIMIT) {
> + printf("Found %d error bytes\n", n);
> + } else {
> + printf("......\n");
> + printf("Found more than %d error bytes\n",
> n);
> + }
> + }
> + return -1;
> + }
> +
> + printf("Transfer is verified\n");
> + return 0;
> +}
> +
> +static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + rte_write64(*host_addr, dev_addr);
> +}
> +
> +static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + *host_addr = rte_read64(dev_addr);
> +}
> +
> +static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
> +{
> + uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
> +
> + if (!ctx)
> + return;
> +
> + if (requested_page != ctx->cur_ase_page) {
> + rte_write64(requested_page, ctx->ase_ctrl_addr);
> + ctx->cur_ase_page = requested_page;
> + }
> +}
> +
> +static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)",
> host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
> +
> + /* write back to device */
> + rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
> +
> + return 0;
> +}
> +
> +static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(dst))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(dst)) {
> + /* Write out a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> +
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Write out blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= dst & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)src, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Write out remaining DWORD */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t count)
> +{
> + uint64_t dst = *dst_ptr;
> + uint64_t src = *src_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + count);
> +
> + /* aligns address to 8 byte using dst masking method */
> + if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + src += unaligned_size;
> + dst += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_write(ctx, &dst, &src, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using dst masking method
> */
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)",
> host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
> +
> + return 0;
> +}
> +
> +static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64"
> (0x%"PRIx64")", dst, src,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(src))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(src)) {
> + /* Read a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Read blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= src & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)dst, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Read remaining DWORD */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + count);
> +
> + /* Aligns address to 8 byte using src masking method */
> + if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + dst += unaligned_size;
> + src += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_read(ctx, &src, &dst, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using src masking method */
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static void clear_interrupt(struct dma_afu_ctx *ctx)
> +{
> + /* clear interrupt by writing 1 to IRQ bit in status register */
> + msgdma_status status;
> +
> + if (!ctx)
> + return;
> +
> + status.csr = 0;
> + status.irq = 1;
> + rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
> +}
> +
> +static int poll_interrupt(struct dma_afu_ctx *ctx)
> +{
> + struct pollfd pfd = {0};
> + uint64_t count = 0;
> + ssize_t bytes_read = 0;
> + int poll_ret = 0;
> + int ret = 0;
> +
> + if (!ctx || (ctx->event_fd < 0))
> + return -EINVAL;
> +
> + pfd.fd = ctx->event_fd;
> + pfd.events = POLLIN;
> + poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
> + if (poll_ret < 0) {
> + AFU_MF_PMD_ERR("Error %s", strerror(errno));
> + ret = -EFAULT;
> + goto out;
> + } else if (poll_ret == 0) {
> + AFU_MF_PMD_ERR("Timeout");
> + ret = -ETIMEDOUT;
> + } else {
> + bytes_read = read(pfd.fd, &count, sizeof(count));
> + if (bytes_read > 0) {
> + if (ctx->verbose)
> + AFU_MF_PMD_DEBUG("Successful, ret %d,
> cnt %"PRIu64,
> + poll_ret, count);
> + ret = 0;
> + } else {
> + AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
> + strerror(errno) : "zero bytes read");
> + ret = -EIO;
> + }
> + }
> +out:
> + clear_interrupt(ctx);
> + return ret;
> +}
> +
> +static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc
> *desc)
> +{
> + msgdma_status status;
> + uint64_t fpga_queue_full = 0;
> +
> + if (!ctx)
> + return;
> +
> + if (ctx->verbose) {
> + AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
> + desc->rd_address_ext, desc->rd_address);
> + AFU_MF_PMD_DEBUG("descriptor.wr_address =
> 0x%x%08x",
> + desc->wr_address_ext, desc->wr_address);
> + AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
> + AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
> + desc->wr_burst_count);
> + AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
> + desc->rd_burst_count);
> + AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc-
> >wr_stride);
> + AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc-
> >rd_stride);
> + }
> +
> + do {
> + status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
> + if (fpga_queue_full++ > 100000000) {
> + AFU_MF_PMD_DEBUG("DMA queue full retry");
> + fpga_queue_full = 0;
> + }
> + } while (status.desc_buf_full);
> +
> + blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
> + sizeof(*desc));
> +}
> +
> +static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + int count, int is_last_desc, fpga_dma_type type, int intr_en)
> +{
> + msgdma_ext_desc *desc = NULL;
> + int alignment_offset = 0;
> + int segment_size = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + /* src, dst and count must be 64-byte aligned */
> + if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
> + !IS_DMA_ALIGNED(count))
> + return -EINVAL;
> + memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
> +
> + /* these fields are fixed for all DMA transfers */
> + desc = ctx->desc_buf;
> + desc->seq_num = 0;
> + desc->wr_stride = 1;
> + desc->rd_stride = 1;
> + desc->control.go = 1;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + else
> + desc->control.transfer_irq_en = 0;
> +
> + if (!is_last_desc)
> + desc->control.early_done_en = 1;
> + else
> + desc->control.early_done_en = 0;
> +
> + if (type == FPGA_TO_FPGA) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
> + send_descriptor(ctx, desc);
> + } else {
> + /* check CCIP (host) address is aligned to 4CL (256B) */
> + alignment_offset = (type == HOST_TO_FPGA)
> + ? (src % CCIP_ALIGN_BYTES) : (dst %
> CCIP_ALIGN_BYTES);
> + /* performing a short transfer to get aligned */
> + if (alignment_offset != 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* count isn't large enough to hit next 4CL boundary
> */
> + if ((CCIP_ALIGN_BYTES - alignment_offset) >= count)
> {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = CCIP_ALIGN_BYTES
> + - alignment_offset;
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + /* post short transfer to align to a 4CL (256 byte) */
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* at this point we are 4CL (256 byte) aligned */
> + if (count >= CCIP_ALIGN_BYTES) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* buffer ends on 4CL boundary */
> + if ((count % CCIP_ALIGN_BYTES) == 0) {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = count
> + - (count % CCIP_ALIGN_BYTES);
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* post short transfer to handle the remainder */
> + if (count > 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + send_descriptor(ctx, desc);
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int issue_magic(struct dma_afu_ctx *ctx)
> +{
> + *(ctx->magic_buf) = 0ULL;
> + return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
> + DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
> +}
> +
> +static void wait_magic(struct dma_afu_ctx *ctx)
> +{
> + int magic_timeout = 0;
> +
> + if (!ctx)
> + return;
> +
> + poll_interrupt(ctx);
> + while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
> + if (magic_timeout++ > 1000) {
> + AFU_MF_PMD_ERR("DMA magic operation
> timeout");
> + magic_timeout = 0;
> + break;
> + }
> + }
> + *(ctx->magic_buf) = 0ULL;
> +}
> +
> +static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, int *intr_issued)
> +{
> + int intr_en = 0;
> + int ret = 0;
> +
> + if (!ctx || !intr_issued)
> + return -EINVAL;
> +
> + src += chunk * ctx->dma_buf_size;
> + dst += chunk * ctx->dma_buf_size;
> +
> + if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) ||
> is_last_chunk) {
> + if (*intr_issued) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> + intr_en = 1;
> + }
> +
> + chunk %= NUM_DMA_BUF;
> + rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
> + ctx->dma_buf_size);
> + ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
> + ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
> + if (intr_en)
> + *intr_issued = 1;
> +
> + return ret;
> +}
> +
> +static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t dma_tx_bytes = 0;
> + uint64_t offset = 0;
> + int issued_intr = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src,
> dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(dst)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_host_to_fpga(ctx, &dst, &src, count_left);
> +
> + aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - dst;
> + ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_tx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1), &issued_intr);
> + if (ret)
> + return ret;
> + }
> +
> + if (issued_intr) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + if (count_left) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_tx_bytes = i * DMA_ALIGN_BYTES;
> + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64" to DMA",
> + dma_tx_bytes);
> + rte_memcpy(ctx->dma_buf[0],
> + (void *)(uintptr_t)(src + offset),
> + dma_tx_bytes);
> + ret = do_dma(ctx, dst + offset,
> + DMA_HOST_ADDR(ctx-
> >dma_iova[0]),
> + dma_tx_bytes, 1, HOST_TO_FPGA, 1);
> + if (ret)
> + return ret;
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + count_left -= dma_tx_bytes;
> + if (count_left) {
> + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64" to ASE",
> + count_left);
> + dst += offset + dma_tx_bytes;
> + src += offset + dma_tx_bytes;
> + ret = ase_host_to_fpga(ctx, &dst, &src,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
> +{
> + uint64_t i = chunk % NUM_DMA_BUF;
> + uint64_t n = *rx_count;
> + uint64_t num_pending = 0;
> + int ret = 0;
> +
> + if (!ctx || !wf_issued)
> + return -EINVAL;
> +
> + ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
> + src + chunk * ctx->dma_buf_size,
> + ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> +
> + num_pending = chunk - n + 1;
> + if (num_pending == HALF_DMA_BUF) {
> + ret = issue_magic(ctx);
> + if (ret) {
> + AFU_MF_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
> + if (*wf_issued) {
> + wait_magic(ctx);
> + for (i = 0; i < HALF_DMA_BUF; i++) {
> + rte_memcpy((void *)(uintptr_t)(dst +
> + n * ctx->dma_buf_size),
> + ctx->dma_buf[n % NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + n++;
> + }
> + *wf_issued = 0;
> + *rx_count = n;
> + }
> + ret = issue_magic(ctx);
> + if (ret) {
> + AFU_MF_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t pending_buf = 0;
> + uint64_t dma_rx_bytes = 0;
> + uint64_t offset = 0;
> + int wf_issued = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src,
> dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(src)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_fpga_to_host(ctx, &src, &dst, count_left);
> +
> + aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - src;
> + ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_rx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1),
> + &pending_buf, &wf_issued);
> + if (ret)
> + return ret;
> + }
> +
> + if (wf_issued)
> + wait_magic(ctx);
> +
> + /* clear out final dma memcpy operations */
> + while (pending_buf < dma_chunks) {
> + /* constant size transfer; no length check required */
> + rte_memcpy((void *)(uintptr_t)(dst +
> + pending_buf * ctx->dma_buf_size),
> + ctx->dma_buf[pending_buf %
> NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + pending_buf++;
> + }
> +
> + if (count_left > 0) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_rx_bytes = i * DMA_ALIGN_BYTES;
> + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64" to DMA",
> + dma_rx_bytes);
> + ret = do_dma(ctx,
> + DMA_HOST_ADDR(ctx-
> >dma_iova[0]),
> + src + offset,
> + dma_rx_bytes, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + rte_memcpy((void *)(uintptr_t)(dst + offset),
> + ctx->dma_buf[0], dma_rx_bytes);
> + }
> +
> + count_left -= dma_rx_bytes;
> + if (count_left) {
> + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64" to ASE",
> + count_left);
> + dst += offset + dma_rx_bytes;
> + src += offset + dma_rx_bytes;
> + ret = ase_fpga_to_host(ctx, &src, &dst,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t dma_chunks = 0;
> + uint64_t offset = 0;
> + uint32_t tx_chunks = 0;
> + uint64_t *tmp_buf = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src,
> dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
> + && IS_DMA_ALIGNED(count_left)) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + if ((((i + 1) % NUM_DMA_BUF) == 0) ||
> + (i == (dma_chunks - 1))) {
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + }
> +
> + if (count_left > 0) {
> + AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to
> DMA", count_left);
> + ret = do_dma(ctx, dst + offset, src + offset,
> + count_left, 1, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + } else {
> + if ((src < dst) && (src + count_left > dst)) {
> + AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
> + " -> 0x%"PRIx64" (0x%"PRIx64")",
> + src, dst, count_left);
> + return -EINVAL;
> + }
> + tx_chunks = count_left / ctx->dma_buf_size;
> + offset = tx_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
> + " (%u...0x%"PRIx64")",
> + src, dst, tx_chunks, count_left);
> + tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
> + DMA_ALIGN_BYTES);
> + for (i = 0; i < tx_chunks; i++) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx,
> + dst + i * ctx->dma_buf_size,
> + (uint64_t)tmp_buf, ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + }
> +
> + if (count_left > 0) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + offset, count_left);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx, dst + offset,
> + (uint64_t)tmp_buf, count_left);
> + if (ret)
> + goto free_buf;
> + }
> +free_buf:
> + rte_free(tmp_buf);
> + }
> +
> + return ret;
> +}
> +
> +static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
> + uint64_t src, size_t count, fpga_dma_type type)
> +{
> + int ret = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (type == HOST_TO_FPGA)
> + ret = dma_host_to_fpga(ctx, dst, src, count);
> + else if (type == FPGA_TO_HOST)
> + ret = dma_fpga_to_host(ctx, dst, src, count);
> + else if (type == FPGA_TO_FPGA)
> + ret = dma_fpga_to_fpga(ctx, dst, src, count);
> + else
> + return -EINVAL;
> +
> + return ret;
> +}
> +
> +static double getTime(struct timespec start, struct timespec end)
> +{
> + uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
> + + end.tv_nsec - start.tv_nsec;
> + return (double)diff / (double)1000000000L;
> +}
> +
> +#define SWEEP_ITERS 1
> +static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
> + uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
> +{
> + struct timespec start, end;
> + uint64_t test_size = 0;
> + uint64_t *dma_buf_ptr = NULL;
> + double throughput, total_time = 0.0;
> + int i = 0;
> + int ret = 0;
> +
> + if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
> + AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
> + return -EINVAL;
> + }
> +
> + if (length < (buf_offset + size_decrement)) {
> + AFU_MF_PMD_ERR("Test length does not match unaligned
> parameter");
> + return -EINVAL;
> + }
> + test_size = length - (buf_offset + size_decrement);
> + if ((ddr_offset + test_size) > ctx->mem_size) {
> + AFU_MF_PMD_ERR("Test is out of DDR memory space");
> + return -EINVAL;
> + }
> +
> + dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
> + printf("Sweep Host %p to FPGA 0x%"PRIx64
> + " with 0x%"PRIx64" bytes ...\n",
> + (void *)dma_buf_ptr, ddr_offset, test_size);
> +
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, ddr_offset,
> (uint64_t)dma_buf_ptr,
> + test_size, HOST_TO_FPGA);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64"
> bytes ...\n",
> + ddr_offset, (void *)dma_buf_ptr, test_size);
> +
> + total_time = 0.0;
> + memset((char *)dma_buf_ptr, 0, test_size);
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr,
> ddr_offset,
> + test_size, FPGA_TO_HOST);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Verifying buffer ...\n");
> + return dma_afu_buf_verify(ctx, test_size);
> +}
> +
> +static int dma_afu_test(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_dma_cfg *cfg = NULL;
> + msgdma_ctrl ctrl;
> + uint64_t offset = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->dma_cfg;
> + if (cfg->index >= NUM_N3000_DMA)
> + return -EINVAL;
> + ctx = &priv->dma_ctx[cfg->index];
> +
> + ctx->pattern = (int)cfg->pattern;
> + ctx->verbose = (int)cfg->verbose;
> + ctx->dma_buf_size = cfg->size;
> +
> + ret = dma_afu_buf_alloc(ctx, cfg);
> + if (ret)
> + goto free;
> +
> + printf("Initialize test buffer\n");
> + dma_afu_buf_init(ctx, cfg->length);
> +
> + /* enable interrupt */
> + ctrl.csr = 0;
> + ctrl.global_intr_en_mask = 1;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> + printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
> + cfg->offset, cfg->length);
> + ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
> + cfg->length, HOST_TO_FPGA);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from host to
> FPGA");
> + goto end;
> + }
> + memset(ctx->data_buf, 0, cfg->length);
> +
> + printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
> + offset = cfg->offset + cfg->length;
> + else if (cfg->offset > cfg->length)
> + offset = 0;
> + else
> + goto end;
> +
> + printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
> + cfg->offset, offset, cfg->length);
> + ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
> + FPGA_TO_FPGA);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> FPGA");
> + goto end;
> + }
> +
> + printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + printf("Sweep with aligned address and size\n");
> + ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
> + if (ret)
> + goto end;
> +
> + if (cfg->unaligned) {
> + printf("Sweep with unaligned address and size\n");
> + struct unaligned_set {
> + uint64_t addr_offset;
> + uint64_t size_dec;
> + } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
> + for (i = 0; i < ARRAY_SIZE(param); i++) {
> + ret = sweep_test(ctx, cfg->length, cfg->offset,
> + param[i].addr_offset, param[i].size_dec);
> + if (ret)
> + break;
> + }
> + }
> +
> +end:
> + /* disable interrupt */
> + ctrl.global_intr_en_mask = 0;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> +free:
> + dma_afu_buf_free(ctx);
> + return ret;
> +}
> +
> +static struct rte_pci_device *n3000_afu_get_pci_dev(struct
> afu_mf_rawdev *dev)
> +{
> + struct rte_afu_device *afudev = NULL;
> +
> + if (!dev || !dev->rawdev || !dev->rawdev->device)
> + return NULL;
> +
> + afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
> + if (!afudev->rawdev || !afudev->rawdev->device)
> + return NULL;
> +
> + return RTE_DEV_TO_PCI(afudev->rawdev->device);
> +}
> +
> +#ifdef VFIO_PRESENT
> +static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t vec_start,
> + uint32_t count, int *efds)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + struct vfio_irq_set *irq_set = NULL;
> + int vfio_dev_fd = 0;
> + size_t sz = 0;
> + int ret = 0;
> +
> + if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
> + return -EINVAL;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return -ENODEV;
> + vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
> +
> + sz = sizeof(*irq_set) + sizeof(*efds) * count;
> + irq_set = rte_zmalloc(NULL, sz, 0);
> + if (!irq_set)
> + return -ENOMEM;
> +
> + irq_set->argsz = (uint32_t)sz;
> + irq_set->count = count;
> + irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
> + VFIO_IRQ_SET_ACTION_TRIGGER;
> + irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
> + irq_set->start = vec_start;
> +
> + rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
> + ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
> + if (ret)
> + AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
> +
> + rte_free(irq_set);
> + return ret;
> +}
> +#endif
> +
> +static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint32_t bar = 0;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return NULL;
> +
> + addr = (uint8_t *)pci_dev->mem_resource[0].addr;
> + val = rte_read64(addr + PORT_ATTR_REG(dev->port));
> + if (!PORT_IMPLEMENTED(val)) {
> + AFU_MF_PMD_INFO("FIU port %d is not implemented",
> dev->port);
> + return NULL;
> + }
> +
> + bar = PORT_BAR(val);
> + if (bar >= PCI_MAX_RESOURCE) {
> + AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
> + return NULL;
> + }
> +
> + addr = (uint8_t *)pci_dev->mem_resource[bar].addr +
> PORT_OFFSET(val);
> + return addr;
> +}
> +
> +static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
> + uint32_t *vec_start, uint32_t *vec_count)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint64_t header = 0;
> + uint64_t next_offset = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
> + (DFH_FEATURE_ID(header) ==
> PORT_FEATURE_UINT_ID)) {
> + val = rte_read64(addr + PORT_UINT_CAP_REG);
> + if (vec_start)
> + *vec_start = PORT_VEC_START(val);
> + if (vec_count)
> + *vec_count = PORT_VEC_COUNT(val);
> + return 0;
> + }
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return -ENOENT;
> +}
> +
> +static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> + ctx->addr = addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr +
> DSM_STATUS);
> + return 0;
> +
> +release:
> + nlb_afu_ctx_release(dev);
> + return ret;
> +}
> +
> +static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[0];
> +
> + rte_free(ctx->desc_buf);
> + ctx->desc_buf = NULL;
> +
> + rte_free(ctx->magic_buf);
> + ctx->magic_buf = NULL;
> +
> + close(ctx->event_fd);
> + return 0;
> +}
> +
> +static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t
> *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000,
> 0x1000000};
> + static int efds[1] = {0};
> + uint32_t vec_start = 0;
> + int ret = 0;
> +
> + if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[index];
> + ctx->index = index;
> + ctx->addr = addr;
> + ctx->csr_addr = addr + DMA_CSR;
> + ctx->desc_addr = addr + DMA_DESC;
> + ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
> + ctx->ase_data_addr = addr + DMA_ASE_DATA;
> + ctx->mem_size = mem_sz[ctx->index];
> + ctx->cur_ase_page = INVALID_ASE_PAGE;
> + if (ctx->index == 0) {
> + ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
> + if (ret)
> + return ret;
> +
> + efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
> + if (efds[0] < 0) {
> + AFU_MF_PMD_ERR("eventfd create failed");
> + return -EBADF;
> + }
> +#ifdef VFIO_PRESENT
> + if (dma_afu_set_irqs(dev, vec_start, 1, efds))
> + AFU_MF_PMD_ERR("DMA interrupt setup failed");
> +#endif
> + }
> + ctx->event_fd = efds[0];
> +
> + ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
> + sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
> + if (!ctx->desc_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->magic_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
> + if (ctx->magic_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + return 0;
> +
> +release:
> + dma_afu_ctx_release(dev);
> + return ret;
> +}
> +
> +static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + uint8_t *addr = NULL;
> + uint64_t header = 0;
> + uint64_t uuid_hi = 0;
> + uint64_t uuid_lo = 0;
> + uint64_t next_offset = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + addr = (uint8_t *)dev->addr;
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
> + uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
> +
> + if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
> + (uuid_lo == N3000_NLB0_UUID_L) &&
> + (uuid_hi == N3000_NLB0_UUID_H)) {
> + AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void
> *)addr);
> + ret = nlb_afu_ctx_init(dev, addr);
> + if (ret)
> + return ret;
> + } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
> + (uuid_lo == N3000_DMA_UUID_L) &&
> + (uuid_hi == N3000_DMA_UUID_H) &&
> + (priv->num_dma < NUM_N3000_DMA)) {
> + AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
> + priv->num_dma, (void *)addr);
> + ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
> + if (ret)
> + return ret;
> + priv->num_dma++;
> + } else {
> + AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
> + ", uuid %016"PRIx64"%016"PRIx64,
> + DFH_TYPE(header), uuid_hi, uuid_lo);
> + }
> +
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return 0;
> +}
> +
> +static int n3000_afu_init(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv),
> 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return n3000_afu_ctx_init(dev);
> +}
> +
> +static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_n3000_cfg *cfg = NULL;
> + int i = 0;
> + uint64_t top = 0;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_n3000_cfg *)config;
> + if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
> + if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
> + (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
> + return -EINVAL;
> + if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.multi_cl != 1) &&
> + (cfg->nlb_cfg.multi_cl != 2) &&
> + (cfg->nlb_cfg.multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
> + (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
> + (cfg->nlb_cfg.end > MAX_CACHE_LINES))
> + return -EINVAL;
> + rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
> + sizeof(struct rte_pmd_afu_nlb_cfg));
> + } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
> + if (cfg->dma_cfg.index >= NUM_N3000_DMA)
> + return -EINVAL;
> + i = cfg->dma_cfg.index;
> + if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
> + if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
> + return -EINVAL;
> + if (i == 3) { /* QDR connected to DMA3 */
> + if (cfg->dma_cfg.length & 0x3f) {
> + cfg->dma_cfg.length &= ~0x3f;
> + AFU_MF_PMD_INFO("Round size to %x for
> QDR",
> + cfg->dma_cfg.length);
> + }
> + }
> + rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
> + sizeof(struct rte_pmd_afu_dma_cfg));
> + } else {
> + AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
> + return -EINVAL;
> + }
> +
> + priv->cfg_type = cfg->type;
> + return 0;
> +}
> +
> +static int n3000_afu_test(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + AFU_MF_PMD_INFO("Test NLB");
> + ret = nlb_afu_test(dev);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
> + ret = dma_afu_test(dev);
> + } else {
> + AFU_MF_PMD_ERR("Please configure AFU before test");
> + ret = -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int n3000_afu_close(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + nlb_afu_ctx_release(dev);
> + dma_afu_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
> +{
> + struct n3000_afu_priv *priv = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + struct dma_afu_ctx *ctx = &priv->dma_ctx[priv-
> >dma_cfg.index];
> + fprintf(f, "index:\t\t%d\n", ctx->index);
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
> + fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
> + fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
> + fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx-
> >ase_data_addr);
> + fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
> + fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
> + fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
> + } else {
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int n3000_afu_reset(struct afu_mf_rawdev *dev)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + val = rte_read64(addr + PORT_CTRL_REG);
> + val |= PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> + rte_delay_us(100);
> + val &= ~PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops n3000_afu_ops = {
> + .init = n3000_afu_init,
> + .config = n3000_afu_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = n3000_afu_test,
> + .close = n3000_afu_close,
> + .dump = n3000_afu_dump,
> + .reset = n3000_afu_reset
> +};
> +
> +struct afu_mf_drv n3000_afu_drv = {
> + .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> + .ops = &n3000_afu_ops
> +};
> diff --git a/drivers/raw/afu_mf/n3000_afu.h
> b/drivers/raw/afu_mf/n3000_afu.h
> new file mode 100644
> index 0000000..4c740da
> --- /dev/null
> +++ b/drivers/raw/afu_mf/n3000_afu.h
> @@ -0,0 +1,333 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _N3000_AFU_H_
> +#define _N3000_AFU_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define N3000_AFU_UUID_L 0xc000c9660d824272
> +#define N3000_AFU_UUID_H 0x9aeffe5f84570612
> +#define N3000_NLB0_UUID_L 0xf89e433683f9040b
> +#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
> +#define N3000_DMA_UUID_L 0xa9149a35bace01ea
> +#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
> +
> +extern struct afu_mf_drv n3000_afu_drv;
> +
> +#define NUM_N3000_DMA 4
> +#define MAX_MSIX_VEC 7
> +
> +/* N3000 DFL definition */
> +#define DFH_UUID_L_OFFSET 8
> +#define DFH_UUID_H_OFFSET 16
> +#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
> +#define DFH_TYPE_AFU 1
> +#define DFH_TYPE_BBB 2
> +#define DFH_TYPE_PRIVATE 3
> +#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
> +#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
> +#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
> +#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
> +#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
> +#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
> +#define PORT_OFFSET(attr) ((attr) & 0xffffff)
> +#define PORT_FEATURE_UINT_ID 0x12
> +#define PORT_UINT_CAP_REG 0x8
> +#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
> +#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
> +#define PORT_CTRL_REG 0x38
> +#define PORT_SOFT_RESET (0x1 << 0)
> +
> +/* NLB registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_STATUS 0x40
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct nlb_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct nlb_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t wrthru_en:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd1:1;
> + uint32_t delay_en:1;
> + uint32_t rdsel:2;
> + uint32_t rsvd2:1;
> + uint32_t chsel:3;
> + uint32_t rsvd3:1;
> + uint32_t wrpush_i:1;
> + uint32_t wr_chsel:3;
> + uint32_t rsvd4:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t wrfence_chsel:2;
> + };
> + };
> +};
> +
> +struct nlb_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct nlb_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct nlb_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +/* DMA registers definition */
> +#define DMA_CSR 0x40
> +#define DMA_DESC 0x60
> +#define DMA_ASE_CTRL 0x200
> +#define DMA_ASE_DATA 0x1000
> +
> +#define DMA_ASE_WINDOW 4096
> +#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
> +#define INVALID_ASE_PAGE 0xffffffffffffffffULL
> +
> +#define DMA_WF_MAGIC 0x5772745F53796E63ULL
> +#define DMA_WF_MAGIC_ROM 0x1000000000000
> +#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
> +#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
> +
> +#define NUM_DMA_BUF 8
> +#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
> +
> +#define DMA_MASK_32_BIT 0xFFFFFFFF
> +
> +#define DMA_CSR_BUSY 0x1
> +#define DMA_DESC_BUFFER_EMPTY 0x2
> +#define DMA_DESC_BUFFER_FULL 0x4
> +
> +#define DWORD_BYTES 4
> +#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
> +
> +#define QWORD_BYTES 8
> +#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
> +
> +#define DMA_ALIGN_BYTES 64
> +#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
> +
> +#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
> +
> +#define DMA_TIMEOUT_MSEC 5000
> +
> +#define MAGIC_BUF_SIZE 64
> +#define ERR_CHECK_LIMIT 64
> +
> +#ifndef MIN
> +#define MIN(a, b) ((a) < (b) ? (a) : (b))
> +#endif
> +
> +#ifndef ARRAY_SIZE
> +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
> +#endif
> +
> +typedef enum {
> + HOST_TO_FPGA = 0,
> + FPGA_TO_HOST,
> + FPGA_TO_FPGA,
> + FPGA_MAX_TRANSFER_TYPE,
> +} fpga_dma_type;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t tx_channel:8;
> + uint32_t generate_sop:1;
> + uint32_t generate_eop:1;
> + uint32_t park_reads:1;
> + uint32_t park_writes:1;
> + uint32_t end_on_eop:1;
> + uint32_t reserved_1:1;
> + uint32_t transfer_irq_en:1;
> + uint32_t early_term_irq_en:1;
> + uint32_t trans_error_irq_en:8;
> + uint32_t early_done_en:1;
> + uint32_t reserved_2:6;
> + uint32_t go:1;
> + };
> +} msgdma_desc_ctrl;
> +
> +typedef struct __rte_packed {
> + uint32_t rd_address;
> + uint32_t wr_address;
> + uint32_t len;
> + uint16_t seq_num;
> + uint8_t rd_burst_count;
> + uint8_t wr_burst_count;
> + uint16_t rd_stride;
> + uint16_t wr_stride;
> + uint32_t rd_address_ext;
> + uint32_t wr_address_ext;
> + msgdma_desc_ctrl control;
> +} msgdma_ext_desc;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t busy:1;
> + uint32_t desc_buf_empty:1;
> + uint32_t desc_buf_full:1;
> + uint32_t rsp_buf_empty:1;
> + uint32_t rsp_buf_full:1;
> + uint32_t stopped:1;
> + uint32_t resetting:1;
> + uint32_t stopped_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t irq:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_status;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t stop_dispatcher:1;
> + uint32_t reset_dispatcher:1;
> + uint32_t stop_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t global_intr_en_mask:1;
> + uint32_t stop_descriptors:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_ctrl;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_fill_level:16;
> + uint32_t wr_fill_level:16;
> + };
> +} msgdma_fill_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rsp_fill_level:16;
> + uint32_t reserved:16;
> + };
> +} msgdma_rsp_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_seq_num:16;
> + uint32_t wr_seq_num:16;
> + };
> +} msgdma_seq_num;
> +
> +typedef struct __rte_packed {
> + msgdma_status status;
> + msgdma_ctrl ctrl;
> + msgdma_fill_level fill_level;
> + msgdma_rsp_level rsp;
> + msgdma_seq_num seq_num;
> +} msgdma_csr;
> +
> +#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
> +#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
> +
> +struct nlb_afu_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct nlb_dsm_status *status_ptr;
> +};
> +
> +struct dma_afu_ctx {
> + int index;
> + uint8_t *addr;
> + uint8_t *csr_addr;
> + uint8_t *desc_addr;
> + uint8_t *ase_ctrl_addr;
> + uint8_t *ase_data_addr;
> + uint64_t mem_size;
> + uint64_t cur_ase_page;
> + int event_fd;
> + int verbose;
> + int pattern;
> + void *data_buf;
> + void *ref_buf;
> + msgdma_ext_desc *desc_buf;
> + uint64_t *magic_buf;
> + uint64_t magic_iova;
> + uint32_t dma_buf_size;
> + uint64_t *dma_buf[NUM_DMA_BUF];
> + uint64_t dma_iova[NUM_DMA_BUF];
> +};
> +
> +struct n3000_afu_priv {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + struct nlb_afu_ctx nlb_ctx;
> + struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
> + int num_dma;
> + int cfg_type;
> +};
> +
> +#endif /* _N3000_AFU_H_ */
> diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> b/drivers/raw/afu_mf/rte_pmd_afu.h
> new file mode 100644
> index 0000000..89d866a
> --- /dev/null
> +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> @@ -0,0 +1,134 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __RTE_PMD_AFU_H__
> +#define __RTE_PMD_AFU_H__
> +
> +/**
> + * @file rte_pmd_afu.h
> + *
> + * AFU PMD specific definitions.
> + *
> + * @b EXPERIMENTAL: this API may change, or be removed, without prior
> notice
> + *
> + */
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <stdint.h>
> +
> +#define RTE_PMD_AFU_N3000_NLB 1
> +#define RTE_PMD_AFU_N3000_DMA 2
> +
> +#define NLB_MODE_LPBK 0
> +#define NLB_MODE_READ 1
> +#define NLB_MODE_WRITE 2
> +#define NLB_MODE_TRPUT 3
> +
> +#define NLB_VC_AUTO 0
> +#define NLB_VC_VL0 1
> +#define NLB_VC_VH0 2
> +#define NLB_VC_VH1 3
> +#define NLB_VC_RANDOM 4
> +
> +#define NLB_WRLINE_M 0
> +#define NLB_WRLINE_I 1
> +#define NLB_WRPUSH_I 2
> +
> +#define NLB_RDLINE_S 0
> +#define NLB_RDLINE_I 1
> +#define NLB_RDLINE_MIXED 2
> +
> +#define MIN_CACHE_LINES 1
> +#define MAX_CACHE_LINES 1024
> +
> +#define MIN_DMA_BUF_SIZE 64
> +#define MAX_DMA_BUF_SIZE (1023 * 1024)
> +
> +/**
> + * NLB AFU configuration data structure.
> + */
> +struct rte_pmd_afu_nlb_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t cache_policy;
> + uint32_t cache_hint;
> + uint32_t read_vc;
> + uint32_t write_vc;
> + uint32_t wrfence_vc;
> + uint32_t freq_mhz;
> +};
> +
> +/**
> + * DMA AFU configuration data structure.
> + */
> +struct rte_pmd_afu_dma_cfg {
> + uint32_t index; /* index of DMA controller */
> + uint32_t length; /* total length of data to DMA */
> + uint32_t offset; /* address offset of target memory */
> + uint32_t size; /* size of transfer buffer */
> + uint32_t pattern; /* data pattern to fill in test buffer */
> + uint32_t unaligned; /* use unaligned address or length in sweep test
> */
> + uint32_t verbose; /* enable verbose error information in test */
> +};
> +
> +/**
> + * N3000 AFU configuration data structure.
> + */
> +struct rte_pmd_afu_n3000_cfg {
> + int type; /* RTE_PMD_AFU_N3000_NLB or
> RTE_PMD_AFU_N3000_DMA */
> + union {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + };
> +};
> +
> +/**
> + * HE-LBK & HE-MEM-LBK AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_lbk_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t trput_interleave;
> + uint32_t freq_mhz;
> +};
> +
> +/**
> + * HE-MEM-TG AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_mem_tg_cfg {
> + uint32_t channel_mask; /* mask of traffic generator channel */
> +};
> +
> +/**
> + * HE-HSSI AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_hssi_cfg {
> + uint32_t port;
> + uint32_t timeout;
> + uint32_t num_packets;
> + uint32_t random_length;
> + uint32_t packet_length;
> + uint32_t random_payload;
> + uint32_t rnd_seed[3];
> + uint64_t src_addr;
> + uint64_t dest_addr;
> + int he_loopback;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* __RTE_PMD_AFU_H__ */
> diff --git a/drivers/raw/afu_mf/version.map
> b/drivers/raw/afu_mf/version.map
> new file mode 100644
> index 0000000..c2e0723
> --- /dev/null
> +++ b/drivers/raw/afu_mf/version.map
> @@ -0,0 +1,3 @@
> +DPDK_22 {
> + local: *;
> +};
> diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build
> index 05e7de1..c3627f7 100644
> --- a/drivers/raw/meson.build
> +++ b/drivers/raw/meson.build
> @@ -6,6 +6,7 @@ if is_windows
> endif
>
> drivers = [
> + 'afu_mf',
> 'cnxk_bphy',
> 'cnxk_gpio',
> 'dpaa2_cmdif',
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v5 0/5] introduce afu_mf raw device driver
2022-05-19 5:52 ` [PATCH v4] " Wei Huang
2022-05-26 6:51 ` Xu, Rosen
@ 2022-05-27 5:36 ` Wei Huang
2022-05-27 5:37 ` [PATCH v5 1/5] drivers/raw: introduce AFU " Wei Huang
` (6 more replies)
1 sibling, 7 replies; 57+ messages in thread
From: Wei Huang @ 2022-05-27 5:36 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
The first patch implements the framework of the AFU raw device
driver.
The subsequent patches implement the driver of some AFUs.
Wei Huang (5):
drivers/raw: introduce AFU raw device driver
raw/afu_mf: add N3000 AFU driver
raw/afu_mf: add HE-LBK AFU driver
raw/afu_mf: add HE-MEM AFU driver
raw/afu_mf: add HE-HSSI AFU driver
drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
drivers/raw/afu_mf/afu_mf_rawdev.h | 89 ++
drivers/raw/afu_mf/he_hssi.c | 369 +++++++
drivers/raw/afu_mf/he_hssi.h | 102 ++
drivers/raw/afu_mf/he_lbk.c | 427 ++++++++
drivers/raw/afu_mf/he_lbk.h | 121 +++
drivers/raw/afu_mf/he_mem.c | 181 ++++
drivers/raw/afu_mf/he_mem.h | 40 +
drivers/raw/afu_mf/meson.build | 8 +
drivers/raw/afu_mf/n3000_afu.c | 2005 ++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
drivers/raw/afu_mf/version.map | 3 +
drivers/raw/meson.build | 1 +
14 files changed, 4253 insertions(+)
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
create mode 100644 drivers/raw/afu_mf/he_hssi.c
create mode 100644 drivers/raw/afu_mf/he_hssi.h
create mode 100644 drivers/raw/afu_mf/he_lbk.c
create mode 100644 drivers/raw/afu_mf/he_lbk.h
create mode 100644 drivers/raw/afu_mf/he_mem.c
create mode 100644 drivers/raw/afu_mf/he_mem.h
create mode 100644 drivers/raw/afu_mf/meson.build
create mode 100644 drivers/raw/afu_mf/n3000_afu.c
create mode 100644 drivers/raw/afu_mf/n3000_afu.h
create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
create mode 100644 drivers/raw/afu_mf/version.map
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
@ 2022-05-27 5:37 ` Wei Huang
2022-06-06 1:52 ` Zhang, Tianfei
2022-06-06 15:38 ` Stephen Hemminger
2022-05-27 5:37 ` [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver Wei Huang
` (5 subsequent siblings)
6 siblings, 2 replies; 57+ messages in thread
From: Wei Huang @ 2022-05-27 5:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
Add multi-function AFU raw device driver to manage various AFU
(Acceleration Function Unit) in FPGA.
This driver implements common AFU raw device interfaces and
exposes them to application as standard raw device APIs.
Normal application can operate specified AFU as below,
1. call rte_rawdev_pmd_get_named_dev() to find AFU raw device.
2. call rte_rawdev_configure() to initialize AFU raw device.
3. call rte_rawdev_selftest() to test function of AFU.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
v2: fix typo
---
v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
---
v4: fix coding style issue and build error in FreeBSD13-64
---
v5: split patch into several patches
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 425 +++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/afu_mf_rawdev.h | 71 +++++++
drivers/raw/afu_mf/meson.build | 5 +
drivers/raw/afu_mf/version.map | 3 +
drivers/raw/meson.build | 1 +
5 files changed, 505 insertions(+)
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
create mode 100644 drivers/raw/afu_mf/meson.build
create mode 100644 drivers/raw/afu_mf/version.map
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
new file mode 100644
index 0000000..5be372a
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -0,0 +1,425 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "afu_mf_rawdev.h"
+
+#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
+
+static const struct rte_afu_uuid afu_uuid_map[] = {
+ { 0, 0 /* sentinel */ }
+};
+
+static struct afu_mf_drv *afu_table[] = {
+ NULL
+};
+
+static inline int afu_mf_trylock(struct afu_mf_rawdev *dev)
+{
+ int32_t x = 0;
+
+ if (!dev || !dev->shared)
+ return -ENODEV;
+
+ x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
+
+ if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x, 1,
+ 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED) == 0))
+ return -EBUSY;
+
+ return 0;
+}
+
+static inline void afu_mf_unlock(struct afu_mf_rawdev *dev)
+{
+ if (!dev || !dev->shared)
+ return;
+
+ __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE);
+}
+
+static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_mf_unlock(dev);
+}
+
+static int afu_mf_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_mf_trylock(dev);
+ if (ret) {
+ AFU_MF_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_mf_unlock(dev);
+
+ return ret;
+}
+
+static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_mf_rawdev *dev = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_FUNC_TRACE();
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_mf_rawdev_configure,
+ .dev_start = afu_mf_rawdev_start,
+ .dev_stop = afu_mf_rawdev_stop,
+ .dev_close = afu_mf_rawdev_close,
+ .dev_reset = afu_mf_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_mf_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_mf_rawdev_selftest,
+};
+
+static int
+afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
+ int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_mf_shared *ptr = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name,
+ sizeof(struct afu_mf_shared),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ ptr = (struct afu_mf_shared *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ ptr->lock = 0;
+
+ *data = ptr;
+
+ return 0;
+}
+
+static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ AFU_MF_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_mf_drv *entry = NULL;
+ int i = 0;
+
+ if (!afu_id)
+ return NULL;
+
+ while ((entry = afu_table[i++])) {
+ if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
+ (entry->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return entry ? entry->ops : NULL;
+}
+
+static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_mf_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_mf_rawdev),
+ socket_id);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_mf_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_mf_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ AFU_MF_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ AFU_MF_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ AFU_MF_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ AFU_MF_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ AFU_MF_PMD_FUNC_TRACE();
+ return afu_mf_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_mf_pmd_drv = {
+ .id_table = afu_uuid_map,
+ .probe = afu_mf_rawdev_probe,
+ .remove = afu_mf_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME, afu_mf_pmd_drv);
+RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h b/drivers/raw/afu_mf/afu_mf_rawdev.h
new file mode 100644
index 0000000..df6715c
--- /dev/null
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_MF_RAWDEV_H__
+#define __AFU_MF_RAWDEV_H__
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_cycles.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+extern int afu_mf_pmd_logtype;
+
+#define AFU_MF_PMD_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n", \
+ __func__, ##args)
+
+#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
+
+#define AFU_MF_PMD_DEBUG(fmt, args...) \
+ AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
+#define AFU_MF_PMD_INFO(fmt, args...) \
+ AFU_MF_PMD_LOG(INFO, fmt, ## args)
+#define AFU_MF_PMD_ERR(fmt, args...) \
+ AFU_MF_PMD_LOG(ERR, fmt, ## args)
+#define AFU_MF_PMD_WARN(fmt, args...) \
+ AFU_MF_PMD_LOG(WARNING, fmt, ## args)
+
+struct afu_mf_rawdev;
+
+struct afu_mf_ops {
+ int (*init)(struct afu_mf_rawdev *dev);
+ int (*config)(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_mf_rawdev *dev);
+ int (*stop)(struct afu_mf_rawdev *dev);
+ int (*test)(struct afu_mf_rawdev *dev);
+ int (*close)(struct afu_mf_rawdev *dev);
+ int (*reset)(struct afu_mf_rawdev *dev);
+ int (*dump)(struct afu_mf_rawdev *dev, FILE *f);
+};
+
+struct afu_mf_drv {
+ struct rte_afu_uuid uuid;
+ struct afu_mf_ops *ops;
+};
+
+struct afu_mf_shared {
+ int32_t lock;
+};
+
+struct afu_mf_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_mf_shared *shared; /* shared data for multi-process */
+ struct afu_mf_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_mf_rawdev *
+afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private : NULL;
+}
+
+#endif /* __AFU_MF_RAWDEV_H__ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
new file mode 100644
index 0000000..80526a2
--- /dev/null
+++ b/drivers/raw/afu_mf/meson.build
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2022 Intel Corporation
+
+deps += ['rawdev', 'bus_pci', 'bus_ifpga']
+sources = files('afu_mf_rawdev.c')
diff --git a/drivers/raw/afu_mf/version.map b/drivers/raw/afu_mf/version.map
new file mode 100644
index 0000000..c2e0723
--- /dev/null
+++ b/drivers/raw/afu_mf/version.map
@@ -0,0 +1,3 @@
+DPDK_22 {
+ local: *;
+};
diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build
index 05e7de1..c3627f7 100644
--- a/drivers/raw/meson.build
+++ b/drivers/raw/meson.build
@@ -6,6 +6,7 @@ if is_windows
endif
drivers = [
+ 'afu_mf',
'cnxk_bphy',
'cnxk_gpio',
'dpaa2_cmdif',
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
2022-05-27 5:37 ` [PATCH v5 1/5] drivers/raw: introduce AFU " Wei Huang
@ 2022-06-06 1:52 ` Zhang, Tianfei
2022-06-06 2:00 ` Zhang, Tianfei
2022-06-07 2:35 ` Huang, Wei
2022-06-06 15:38 ` Stephen Hemminger
1 sibling, 2 replies; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-06 1:52 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Friday, May 27, 2022 1:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
>
> Add multi-function AFU raw device driver to manage various AFU (Acceleration
> Function Unit) in FPGA.
> This driver implements common AFU raw device interfaces and exposes them to
> application as standard raw device APIs.
> Normal application can operate specified AFU as below, 1. call
> rte_rawdev_pmd_get_named_dev() to find AFU raw device.
> 2. call rte_rawdev_configure() to initialize AFU raw device.
> 3. call rte_rawdev_selftest() to test function of AFU.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: fix typo
> ---
> v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> ---
> v4: fix coding style issue and build error in FreeBSD13-64
> ---
> v5: split patch into several patches
> ---
> drivers/raw/afu_mf/afu_mf_rawdev.c | 425
> +++++++++++++++++++++++++++++++++++++
> drivers/raw/afu_mf/afu_mf_rawdev.h | 71 +++++++
> drivers/raw/afu_mf/meson.build | 5 +
> drivers/raw/afu_mf/version.map | 3 +
> drivers/raw/meson.build | 1 +
> 5 files changed, 505 insertions(+)
> create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
> create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
> create mode 100644 drivers/raw/afu_mf/meson.build create mode 100644
> drivers/raw/afu_mf/version.map
I am thinking that just put those afu* c/h files into drivers/raw/ifpga/ folder is better? Because this AFU PMD driver is work on ifpga.
And the file name of "afu_mf_rawdev.c" change to "afu_pmd_driver.c"?
>
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> b/drivers/raw/afu_mf/afu_mf_rawdev.c
> new file mode 100644
> index 0000000..5be372a
> --- /dev/null
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> @@ -0,0 +1,425 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memzone.h>
> +#include <rte_rawdev_pmd.h>
> +
> +#include "afu_mf_rawdev.h"
> +
> +#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> +
> +static const struct rte_afu_uuid afu_uuid_map[] = {
> + { 0, 0 /* sentinel */ }
> +};
> +
> +static struct afu_mf_drv *afu_table[] = {
> + NULL
> +};
> +
> +static inline int afu_mf_trylock(struct afu_mf_rawdev *dev) {
> + int32_t x = 0;
> +
> + if (!dev || !dev->shared)
> + return -ENODEV;
> +
> + x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
> +
> + if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x,
> 1,
> + 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED)
> == 0))
> + return -EBUSY;
> +
> + return 0;
> +}
> +
> +static inline void afu_mf_unlock(struct afu_mf_rawdev *dev) {
> + if (!dev || !dev->shared)
> + return;
> +
> + __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE); }
> +
> +static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
> + rte_rawdev_obj_t config, size_t config_size) {
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->config)
> + ret = (*dev->ops->config)(dev, config, config_size);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_start(struct rte_rawdev *rawdev) {
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please start it later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->start)
> + ret = (*dev->ops->start)(dev);
> +
> + afu_mf_unlock(dev);
> +
> + return ret;
> +}
> +
> +static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev) {
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please stop it later");
> + return;
> + }
> +
> + if (dev->ops && dev->ops->stop)
> + ret = (*dev->ops->stop)(dev);
> +
> + afu_mf_unlock(dev);
> +}
> +
> +static int afu_mf_rawdev_close(struct rte_rawdev *rawdev) {
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->close)
> + ret = (*dev->ops->close)(dev);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev) {
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please reset it later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->reset)
> + ret = (*dev->ops->reset)(dev);
> +
> + afu_mf_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_selftest(uint16_t dev_id) {
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> + return -ENODEV;
> +
> + dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
> + if (!dev)
> + return -ENOENT;
> +
> + ret = afu_mf_trylock(dev);
> + if (ret) {
> + AFU_MF_PMD_WARN("AFU is busy, please test it later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->test)
> + ret = (*dev->ops->test)(dev);
> +
> + afu_mf_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f) {
> + struct afu_mf_rawdev *dev = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_FUNC_TRACE();
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->dump)
> + ret = (*dev->ops->dump)(dev, f);
> +
> + return ret;
> +}
> +
> +static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
> + .dev_info_get = NULL,
> + .dev_configure = afu_mf_rawdev_configure,
> + .dev_start = afu_mf_rawdev_start,
> + .dev_stop = afu_mf_rawdev_stop,
> + .dev_close = afu_mf_rawdev_close,
> + .dev_reset = afu_mf_rawdev_reset,
> +
> + .queue_def_conf = NULL,
> + .queue_setup = NULL,
> + .queue_release = NULL,
> + .queue_count = NULL,
> +
> + .attr_get = NULL,
> + .attr_set = NULL,
> +
> + .enqueue_bufs = NULL,
> + .dequeue_bufs = NULL,
> +
> + .dump = afu_mf_rawdev_dump,
> +
> + .xstats_get = NULL,
> + .xstats_get_names = NULL,
> + .xstats_get_by_name = NULL,
> + .xstats_reset = NULL,
> +
> + .firmware_status_get = NULL,
> + .firmware_version_get = NULL,
> + .firmware_load = NULL,
> + .firmware_unload = NULL,
> +
> + .dev_selftest = afu_mf_rawdev_selftest, };
> +
> +static int
> +afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
> + int socket_id)
> +{
> + const struct rte_memzone *mz;
> + char mz_name[RTE_MEMZONE_NAMESIZE];
> + struct afu_mf_shared *ptr = NULL;
> + int init_mz = 0;
> +
> + if (!name || !data)
> + return -EINVAL;
> +
> + /* name format is afu_?|??:??.? which is unique */
> + snprintf(mz_name, sizeof(mz_name), "%s", name);
> +
> + mz = rte_memzone_lookup(mz_name);
> + if (!mz) {
> + mz = rte_memzone_reserve(mz_name,
> + sizeof(struct afu_mf_shared),
> + socket_id, 0);
> + init_mz = 1;
> + }
> +
> + if (!mz) {
> + AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
> + mz_name);
> + return -ENOMEM;
> + }
> +
> + ptr = (struct afu_mf_shared *)mz->addr;
> +
> + if (init_mz) /* initialize memory zone on the first time */
> + ptr->lock = 0;
> +
> + *data = ptr;
> +
> + return 0;
> +}
> +
> +static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev, char
> *name,
> + size_t size)
> +{
> + int n = 0;
> +
> + if (!afu_dev || !name || !size)
> + return -EINVAL;
> +
> + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> + if (n >= (int)size) {
> + AFU_MF_PMD_ERR("Name of AFU device is too long!");
> + return -ENAMETOOLONG;
> + }
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id) {
> + struct afu_mf_drv *entry = NULL;
> + int i = 0;
> +
> + if (!afu_id)
> + return NULL;
> +
> + while ((entry = afu_table[i++])) {
> + if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
> + (entry->uuid.uuid_high == afu_id->uuid_high))
> + break;
> + }
> +
> + return entry ? entry->ops : NULL;
> +}
> +
> +static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int
> +socket_id) {
> + struct rte_rawdev *rawdev = NULL;
> + struct afu_mf_rawdev *dev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
> + name, socket_id);
> +
> + /* Allocate device structure */
> + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct
> afu_mf_rawdev),
> + socket_id);
> + if (!rawdev) {
> + AFU_MF_PMD_ERR("Unable to allocate raw device");
> + return -ENOMEM;
> + }
> +
> + rawdev->dev_ops = &afu_mf_rawdev_ops;
> + rawdev->device = &afu_dev->device;
> + rawdev->driver_name = afu_dev->driver->driver.name;
> +
> + dev = afu_mf_rawdev_get_priv(rawdev);
> + if (!dev)
> + goto cleanup;
> +
> + dev->rawdev = rawdev;
> + dev->port = afu_dev->id.port;
> + dev->addr = afu_dev->mem_resource[0].addr;
> + dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
> + if (dev->ops == NULL) {
> + AFU_MF_PMD_ERR("Unsupported AFU device");
> + goto cleanup;
> + }
> +
> + if (dev->ops->init) {
> + ret = (*dev->ops->init)(dev);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to init %s", name);
> + goto cleanup;
> + }
> + }
> +
> + ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
> + if (ret)
> + goto cleanup;
> +
> + return ret;
> +
> +cleanup:
> + rte_rawdev_pmd_release(rawdev);
> + return ret;
> +}
> +
> +static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev) {
> + struct rte_rawdev *rawdev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + AFU_MF_PMD_INFO("Destroy raw device %s", name);
> +
> + rawdev = rte_rawdev_pmd_get_named_dev(name);
> + if (!rawdev) {
> + AFU_MF_PMD_ERR("Raw device %s not found", name);
> + return -EINVAL;
> + }
> +
> + /* rte_rawdev_close is called by pmd_release */
> + ret = rte_rawdev_pmd_release(rawdev);
> + if (ret)
> + AFU_MF_PMD_DEBUG("Device cleanup failed");
> +
> + return 0;
> +}
> +
> +static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev) {
> + AFU_MF_PMD_FUNC_TRACE();
> + return afu_mf_rawdev_create(afu_dev, rte_socket_id()); }
> +
> +static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev) {
> + AFU_MF_PMD_FUNC_TRACE();
> + return afu_mf_rawdev_destroy(afu_dev); }
> +
> +static struct rte_afu_driver afu_mf_pmd_drv = {
> + .id_table = afu_uuid_map,
> + .probe = afu_mf_rawdev_probe,
> + .remove = afu_mf_rawdev_remove
> +};
> +
> +RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME, afu_mf_pmd_drv);
> +RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h
> b/drivers/raw/afu_mf/afu_mf_rawdev.h
> new file mode 100644
> index 0000000..df6715c
> --- /dev/null
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
> @@ -0,0 +1,71 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __AFU_MF_RAWDEV_H__
> +#define __AFU_MF_RAWDEV_H__
> +
> +#include <stdint.h>
> +#include <stdio.h>
> +#include <unistd.h>
> +
> +#include <rte_cycles.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +extern int afu_mf_pmd_logtype;
> +
> +#define AFU_MF_PMD_LOG(level, fmt, args...) \
> + rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n", \
> + __func__, ##args)
> +
> +#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
> +
> +#define AFU_MF_PMD_DEBUG(fmt, args...) \
> + AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
> +#define AFU_MF_PMD_INFO(fmt, args...) \
> + AFU_MF_PMD_LOG(INFO, fmt, ## args)
> +#define AFU_MF_PMD_ERR(fmt, args...) \
> + AFU_MF_PMD_LOG(ERR, fmt, ## args)
> +#define AFU_MF_PMD_WARN(fmt, args...) \
> + AFU_MF_PMD_LOG(WARNING, fmt, ## args)
> +
> +struct afu_mf_rawdev;
> +
> +struct afu_mf_ops {
> + int (*init)(struct afu_mf_rawdev *dev);
> + int (*config)(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size);
> + int (*start)(struct afu_mf_rawdev *dev);
> + int (*stop)(struct afu_mf_rawdev *dev);
> + int (*test)(struct afu_mf_rawdev *dev);
> + int (*close)(struct afu_mf_rawdev *dev);
> + int (*reset)(struct afu_mf_rawdev *dev);
> + int (*dump)(struct afu_mf_rawdev *dev, FILE *f); };
> +
> +struct afu_mf_drv {
> + struct rte_afu_uuid uuid;
> + struct afu_mf_ops *ops;
> +};
> +
> +struct afu_mf_shared {
> + int32_t lock;
> +};
> +
> +struct afu_mf_rawdev {
> + struct rte_rawdev *rawdev; /* point to parent raw device */
> + struct afu_mf_shared *shared; /* shared data for multi-process */
> + struct afu_mf_ops *ops; /* device operation functions */
> + int port; /* index of port the AFU attached */
> + void *addr; /* base address of AFU registers */
> + void *priv; /* private driver data */ };
> +
> +static inline struct afu_mf_rawdev *
> +afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev) {
> + return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private : NULL; }
> +
> +#endif /* __AFU_MF_RAWDEV_H__ */
> diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
> new file mode 100644 index 0000000..80526a2
> --- /dev/null
> +++ b/drivers/raw/afu_mf/meson.build
> @@ -0,0 +1,5 @@
> +# SPDX-License-Identifier: BSD-3-Clause # Copyright 2022 Intel
> +Corporation
> +
> +deps += ['rawdev', 'bus_pci', 'bus_ifpga'] sources =
> +files('afu_mf_rawdev.c')
> diff --git a/drivers/raw/afu_mf/version.map b/drivers/raw/afu_mf/version.map
> new file mode 100644 index 0000000..c2e0723
> --- /dev/null
> +++ b/drivers/raw/afu_mf/version.map
> @@ -0,0 +1,3 @@
> +DPDK_22 {
> + local: *;
> +};
> diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build index
> 05e7de1..c3627f7 100644
> --- a/drivers/raw/meson.build
> +++ b/drivers/raw/meson.build
> @@ -6,6 +6,7 @@ if is_windows
> endif
>
> drivers = [
> + 'afu_mf',
> 'cnxk_bphy',
> 'cnxk_gpio',
> 'dpaa2_cmdif',
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
2022-06-06 1:52 ` Zhang, Tianfei
@ 2022-06-06 2:00 ` Zhang, Tianfei
2022-06-07 2:36 ` Huang, Wei
2022-06-07 2:35 ` Huang, Wei
1 sibling, 1 reply; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-06 2:00 UTC (permalink / raw)
To: Zhang, Tianfei, Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 9:53 AM
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
>
>
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Friday, May 27, 2022 1:37 PM
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> > Wei <wei.huang@intel.com>
> > Subject: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
> >
> > Add multi-function AFU raw device driver to manage various AFU
> > (Acceleration Function Unit) in FPGA.
> > This driver implements common AFU raw device interfaces and exposes
> > them to application as standard raw device APIs.
> > Normal application can operate specified AFU as below, 1. call
> > rte_rawdev_pmd_get_named_dev() to find AFU raw device.
> > 2. call rte_rawdev_configure() to initialize AFU raw device.
> > 3. call rte_rawdev_selftest() to test function of AFU.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > v2: fix typo
> > ---
> > v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> > ---
> > v4: fix coding style issue and build error in FreeBSD13-64
> > ---
> > v5: split patch into several patches
> > ---
> > drivers/raw/afu_mf/afu_mf_rawdev.c | 425
> > +++++++++++++++++++++++++++++++++++++
> > drivers/raw/afu_mf/afu_mf_rawdev.h | 71 +++++++
> > drivers/raw/afu_mf/meson.build | 5 +
> > drivers/raw/afu_mf/version.map | 3 +
> > drivers/raw/meson.build | 1 +
> > 5 files changed, 505 insertions(+)
> > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
> > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
> > create mode 100644 drivers/raw/afu_mf/meson.build create mode 100644
> > drivers/raw/afu_mf/version.map
>
> I am thinking that just put those afu* c/h files into drivers/raw/ifpga/ folder is
> better? Because this AFU PMD driver is work on ifpga.
> And the file name of "afu_mf_rawdev.c" change to "afu_pmd_driver.c"?
Ohm, the file name of "afu_mf_rawdev.c" change to "afu_pmd_core.c"?
Because this file is the common code of AFU PMD driver, and specific function are in separate c file, like afu_pmd_n3000.c
>
> >
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > new file mode 100644
> > index 0000000..5be372a
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > @@ -0,0 +1,425 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + */
> > +
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <string.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memzone.h>
> > +#include <rte_rawdev_pmd.h>
> > +
> > +#include "afu_mf_rawdev.h"
> > +
> > +#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> > +
> > +static const struct rte_afu_uuid afu_uuid_map[] = {
> > + { 0, 0 /* sentinel */ }
> > +};
> > +
> > +static struct afu_mf_drv *afu_table[] = {
> > + NULL
> > +};
> > +
> > +static inline int afu_mf_trylock(struct afu_mf_rawdev *dev) {
> > + int32_t x = 0;
> > +
> > + if (!dev || !dev->shared)
> > + return -ENODEV;
> > +
> > + x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
> > +
> > + if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x,
> > 1,
> > + 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED)
> > == 0))
> > + return -EBUSY;
> > +
> > + return 0;
> > +}
> > +
> > +static inline void afu_mf_unlock(struct afu_mf_rawdev *dev) {
> > + if (!dev || !dev->shared)
> > + return;
> > +
> > + __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE); }
> > +
> > +static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
> > + rte_rawdev_obj_t config, size_t config_size) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->config)
> > + ret = (*dev->ops->config)(dev, config, config_size);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_start(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please start it later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->start)
> > + ret = (*dev->ops->start)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please stop it later");
> > + return;
> > + }
> > +
> > + if (dev->ops && dev->ops->stop)
> > + ret = (*dev->ops->stop)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +}
> > +
> > +static int afu_mf_rawdev_close(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->close)
> > + ret = (*dev->ops->close)(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please reset it later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->reset)
> > + ret = (*dev->ops->reset)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_selftest(uint16_t dev_id) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> > + return -ENODEV;
> > +
> > + dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
> > + if (!dev)
> > + return -ENOENT;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please test it later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->test)
> > + ret = (*dev->ops->test)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->dump)
> > + ret = (*dev->ops->dump)(dev, f);
> > +
> > + return ret;
> > +}
> > +
> > +static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
> > + .dev_info_get = NULL,
> > + .dev_configure = afu_mf_rawdev_configure,
> > + .dev_start = afu_mf_rawdev_start,
> > + .dev_stop = afu_mf_rawdev_stop,
> > + .dev_close = afu_mf_rawdev_close,
> > + .dev_reset = afu_mf_rawdev_reset,
> > +
> > + .queue_def_conf = NULL,
> > + .queue_setup = NULL,
> > + .queue_release = NULL,
> > + .queue_count = NULL,
> > +
> > + .attr_get = NULL,
> > + .attr_set = NULL,
> > +
> > + .enqueue_bufs = NULL,
> > + .dequeue_bufs = NULL,
> > +
> > + .dump = afu_mf_rawdev_dump,
> > +
> > + .xstats_get = NULL,
> > + .xstats_get_names = NULL,
> > + .xstats_get_by_name = NULL,
> > + .xstats_reset = NULL,
> > +
> > + .firmware_status_get = NULL,
> > + .firmware_version_get = NULL,
> > + .firmware_load = NULL,
> > + .firmware_unload = NULL,
> > +
> > + .dev_selftest = afu_mf_rawdev_selftest, };
> > +
> > +static int
> > +afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
> > + int socket_id)
> > +{
> > + const struct rte_memzone *mz;
> > + char mz_name[RTE_MEMZONE_NAMESIZE];
> > + struct afu_mf_shared *ptr = NULL;
> > + int init_mz = 0;
> > +
> > + if (!name || !data)
> > + return -EINVAL;
> > +
> > + /* name format is afu_?|??:??.? which is unique */
> > + snprintf(mz_name, sizeof(mz_name), "%s", name);
> > +
> > + mz = rte_memzone_lookup(mz_name);
> > + if (!mz) {
> > + mz = rte_memzone_reserve(mz_name,
> > + sizeof(struct afu_mf_shared),
> > + socket_id, 0);
> > + init_mz = 1;
> > + }
> > +
> > + if (!mz) {
> > + AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
> > + mz_name);
> > + return -ENOMEM;
> > + }
> > +
> > + ptr = (struct afu_mf_shared *)mz->addr;
> > +
> > + if (init_mz) /* initialize memory zone on the first time */
> > + ptr->lock = 0;
> > +
> > + *data = ptr;
> > +
> > + return 0;
> > +}
> > +
> > +static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev,
> > +char
> > *name,
> > + size_t size)
> > +{
> > + int n = 0;
> > +
> > + if (!afu_dev || !name || !size)
> > + return -EINVAL;
> > +
> > + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> > + if (n >= (int)size) {
> > + AFU_MF_PMD_ERR("Name of AFU device is too long!");
> > + return -ENAMETOOLONG;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id) {
> > + struct afu_mf_drv *entry = NULL;
> > + int i = 0;
> > +
> > + if (!afu_id)
> > + return NULL;
> > +
> > + while ((entry = afu_table[i++])) {
> > + if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
> > + (entry->uuid.uuid_high == afu_id->uuid_high))
> > + break;
> > + }
> > +
> > + return entry ? entry->ops : NULL;
> > +}
> > +
> > +static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int
> > +socket_id) {
> > + struct rte_rawdev *rawdev = NULL;
> > + struct afu_mf_rawdev *dev = NULL;
> > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > + int ret = 0;
> > +
> > + if (!afu_dev)
> > + return -EINVAL;
> > +
> > + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> > + if (ret)
> > + return ret;
> > +
> > + AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
> > + name, socket_id);
> > +
> > + /* Allocate device structure */
> > + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct
> > afu_mf_rawdev),
> > + socket_id);
> > + if (!rawdev) {
> > + AFU_MF_PMD_ERR("Unable to allocate raw device");
> > + return -ENOMEM;
> > + }
> > +
> > + rawdev->dev_ops = &afu_mf_rawdev_ops;
> > + rawdev->device = &afu_dev->device;
> > + rawdev->driver_name = afu_dev->driver->driver.name;
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + goto cleanup;
> > +
> > + dev->rawdev = rawdev;
> > + dev->port = afu_dev->id.port;
> > + dev->addr = afu_dev->mem_resource[0].addr;
> > + dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
> > + if (dev->ops == NULL) {
> > + AFU_MF_PMD_ERR("Unsupported AFU device");
> > + goto cleanup;
> > + }
> > +
> > + if (dev->ops->init) {
> > + ret = (*dev->ops->init)(dev);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed to init %s", name);
> > + goto cleanup;
> > + }
> > + }
> > +
> > + ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
> > + if (ret)
> > + goto cleanup;
> > +
> > + return ret;
> > +
> > +cleanup:
> > + rte_rawdev_pmd_release(rawdev);
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev) {
> > + struct rte_rawdev *rawdev = NULL;
> > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > + int ret = 0;
> > +
> > + if (!afu_dev)
> > + return -EINVAL;
> > +
> > + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> > + if (ret)
> > + return ret;
> > +
> > + AFU_MF_PMD_INFO("Destroy raw device %s", name);
> > +
> > + rawdev = rte_rawdev_pmd_get_named_dev(name);
> > + if (!rawdev) {
> > + AFU_MF_PMD_ERR("Raw device %s not found", name);
> > + return -EINVAL;
> > + }
> > +
> > + /* rte_rawdev_close is called by pmd_release */
> > + ret = rte_rawdev_pmd_release(rawdev);
> > + if (ret)
> > + AFU_MF_PMD_DEBUG("Device cleanup failed");
> > +
> > + return 0;
> > +}
> > +
> > +static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev) {
> > + AFU_MF_PMD_FUNC_TRACE();
> > + return afu_mf_rawdev_create(afu_dev, rte_socket_id()); }
> > +
> > +static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev) {
> > + AFU_MF_PMD_FUNC_TRACE();
> > + return afu_mf_rawdev_destroy(afu_dev); }
> > +
> > +static struct rte_afu_driver afu_mf_pmd_drv = {
> > + .id_table = afu_uuid_map,
> > + .probe = afu_mf_rawdev_probe,
> > + .remove = afu_mf_rawdev_remove
> > +};
> > +
> > +RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME,
> afu_mf_pmd_drv);
> > +RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h
> > b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > new file mode 100644
> > index 0000000..df6715c
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > @@ -0,0 +1,71 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + */
> > +
> > +#ifndef __AFU_MF_RAWDEV_H__
> > +#define __AFU_MF_RAWDEV_H__
> > +
> > +#include <stdint.h>
> > +#include <stdio.h>
> > +#include <unistd.h>
> > +
> > +#include <rte_cycles.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +extern int afu_mf_pmd_logtype;
> > +
> > +#define AFU_MF_PMD_LOG(level, fmt, args...) \
> > + rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n", \
> > + __func__, ##args)
> > +
> > +#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG, ">>")
> > +
> > +#define AFU_MF_PMD_DEBUG(fmt, args...) \
> > + AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
> > +#define AFU_MF_PMD_INFO(fmt, args...) \
> > + AFU_MF_PMD_LOG(INFO, fmt, ## args)
> > +#define AFU_MF_PMD_ERR(fmt, args...) \
> > + AFU_MF_PMD_LOG(ERR, fmt, ## args)
> > +#define AFU_MF_PMD_WARN(fmt, args...) \
> > + AFU_MF_PMD_LOG(WARNING, fmt, ## args)
> > +
> > +struct afu_mf_rawdev;
> > +
> > +struct afu_mf_ops {
> > + int (*init)(struct afu_mf_rawdev *dev);
> > + int (*config)(struct afu_mf_rawdev *dev, void *config,
> > + size_t config_size);
> > + int (*start)(struct afu_mf_rawdev *dev);
> > + int (*stop)(struct afu_mf_rawdev *dev);
> > + int (*test)(struct afu_mf_rawdev *dev);
> > + int (*close)(struct afu_mf_rawdev *dev);
> > + int (*reset)(struct afu_mf_rawdev *dev);
> > + int (*dump)(struct afu_mf_rawdev *dev, FILE *f); };
> > +
> > +struct afu_mf_drv {
> > + struct rte_afu_uuid uuid;
> > + struct afu_mf_ops *ops;
> > +};
> > +
> > +struct afu_mf_shared {
> > + int32_t lock;
> > +};
> > +
> > +struct afu_mf_rawdev {
> > + struct rte_rawdev *rawdev; /* point to parent raw device */
> > + struct afu_mf_shared *shared; /* shared data for multi-process */
> > + struct afu_mf_ops *ops; /* device operation functions */
> > + int port; /* index of port the AFU attached */
> > + void *addr; /* base address of AFU registers */
> > + void *priv; /* private driver data */ };
> > +
> > +static inline struct afu_mf_rawdev *
> > +afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev) {
> > + return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private : NULL;
> > +}
> > +
> > +#endif /* __AFU_MF_RAWDEV_H__ */
> > diff --git a/drivers/raw/afu_mf/meson.build
> > b/drivers/raw/afu_mf/meson.build new file mode 100644 index
> > 0000000..80526a2
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/meson.build
> > @@ -0,0 +1,5 @@
> > +# SPDX-License-Identifier: BSD-3-Clause # Copyright 2022 Intel
> > +Corporation
> > +
> > +deps += ['rawdev', 'bus_pci', 'bus_ifpga'] sources =
> > +files('afu_mf_rawdev.c')
> > diff --git a/drivers/raw/afu_mf/version.map
> > b/drivers/raw/afu_mf/version.map new file mode 100644 index
> > 0000000..c2e0723
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/version.map
> > @@ -0,0 +1,3 @@
> > +DPDK_22 {
> > + local: *;
> > +};
> > diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build index
> > 05e7de1..c3627f7 100644
> > --- a/drivers/raw/meson.build
> > +++ b/drivers/raw/meson.build
> > @@ -6,6 +6,7 @@ if is_windows
> > endif
> >
> > drivers = [
> > + 'afu_mf',
> > 'cnxk_bphy',
> > 'cnxk_gpio',
> > 'dpaa2_cmdif',
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
2022-06-06 2:00 ` Zhang, Tianfei
@ 2022-06-07 2:36 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 2:36 UTC (permalink / raw)
To: Zhang, Tianfei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 10:00
> To: Zhang, Tianfei <tianfei.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>; dev@dpdk.org; thomas@monjalon.net;
> nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
>
>
>
> > -----Original Message-----
> > From: Zhang, Tianfei <tianfei.zhang@intel.com>
> > Sent: Monday, June 6, 2022 9:53 AM
> > To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> > thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> > <qi.z.zhang@intel.com>
> > Subject: RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device
> > driver
> >
> >
> >
> > > -----Original Message-----
> > > From: Huang, Wei <wei.huang@intel.com>
> > > Sent: Friday, May 27, 2022 1:37 PM
> > > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > > hemant.agrawal@nxp.com
> > > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>;
> > > Huang, Wei <wei.huang@intel.com>
> > > Subject: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
> > >
> > > Add multi-function AFU raw device driver to manage various AFU
> > > (Acceleration Function Unit) in FPGA.
> > > This driver implements common AFU raw device interfaces and exposes
> > > them to application as standard raw device APIs.
> > > Normal application can operate specified AFU as below, 1. call
> > > rte_rawdev_pmd_get_named_dev() to find AFU raw device.
> > > 2. call rte_rawdev_configure() to initialize AFU raw device.
> > > 3. call rte_rawdev_selftest() to test function of AFU.
> > >
> > > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > > ---
> > > v2: fix typo
> > > ---
> > > v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> > > ---
> > > v4: fix coding style issue and build error in FreeBSD13-64
> > > ---
> > > v5: split patch into several patches
> > > ---
> > > drivers/raw/afu_mf/afu_mf_rawdev.c | 425
> > > +++++++++++++++++++++++++++++++++++++
> > > drivers/raw/afu_mf/afu_mf_rawdev.h | 71 +++++++
> > > drivers/raw/afu_mf/meson.build | 5 +
> > > drivers/raw/afu_mf/version.map | 3 +
> > > drivers/raw/meson.build | 1 +
> > > 5 files changed, 505 insertions(+)
> > > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
> > > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
> > > create mode 100644 drivers/raw/afu_mf/meson.build create mode
> > > 100644 drivers/raw/afu_mf/version.map
> >
> > I am thinking that just put those afu* c/h files into
> > drivers/raw/ifpga/ folder is better? Because this AFU PMD driver is work on
> ifpga.
> > And the file name of "afu_mf_rawdev.c" change to "afu_pmd_driver.c"?
>
> Ohm, the file name of "afu_mf_rawdev.c" change to "afu_pmd_core.c"?
> Because this file is the common code of AFU PMD driver, and specific
> function are in separate c file, like afu_pmd_n3000.c
>
agree
> >
> > >
> > > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > > b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > > new file mode 100644
> > > index 0000000..5be372a
> > > --- /dev/null
> > > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > > @@ -0,0 +1,425 @@
> > > +/* SPDX-License-Identifier: BSD-3-Clause
> > > + * Copyright 2022 Intel Corporation */
> > > +
> > > +#include <errno.h>
> > > +#include <stdio.h>
> > > +#include <stdint.h>
> > > +#include <stdlib.h>
> > > +#include <string.h>
> > > +#include <unistd.h>
> > > +#include <fcntl.h>
> > > +#include <poll.h>
> > > +#include <sys/eventfd.h>
> > > +
> > > +#include <rte_eal.h>
> > > +#include <rte_malloc.h>
> > > +#include <rte_memzone.h>
> > > +#include <rte_rawdev_pmd.h>
> > > +
> > > +#include "afu_mf_rawdev.h"
> > > +
> > > +#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> > > +
> > > +static const struct rte_afu_uuid afu_uuid_map[] = {
> > > + { 0, 0 /* sentinel */ }
> > > +};
> > > +
> > > +static struct afu_mf_drv *afu_table[] = {
> > > + NULL
> > > +};
> > > +
> > > +static inline int afu_mf_trylock(struct afu_mf_rawdev *dev) {
> > > + int32_t x = 0;
> > > +
> > > + if (!dev || !dev->shared)
> > > + return -ENODEV;
> > > +
> > > + x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
> > > +
> > > + if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock,
> > > +&x,
> > > 1,
> > > + 1, __ATOMIC_ACQUIRE,
> __ATOMIC_RELAXED)
> > > == 0))
> > > + return -EBUSY;
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static inline void afu_mf_unlock(struct afu_mf_rawdev *dev) {
> > > + if (!dev || !dev->shared)
> > > + return;
> > > +
> > > + __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE); }
> > > +
> > > +static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
> > > + rte_rawdev_obj_t config, size_t config_size) {
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + int ret = 0;
> > > +
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > +
> > > + dev = afu_mf_rawdev_get_priv(rawdev);
> > > + if (!dev)
> > > + return -ENODEV;
> > > +
> > > + if (dev->ops && dev->ops->config)
> > > + ret = (*dev->ops->config)(dev, config, config_size);
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_start(struct rte_rawdev *rawdev) {
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + int ret = 0;
> > > +
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > +
> > > + dev = afu_mf_rawdev_get_priv(rawdev);
> > > + if (!dev)
> > > + return -ENODEV;
> > > +
> > > + ret = afu_mf_trylock(dev);
> > > + if (ret) {
> > > + AFU_MF_PMD_WARN("AFU is busy, please start it later");
> > > + return ret;
> > > + }
> > > +
> > > + if (dev->ops && dev->ops->start)
> > > + ret = (*dev->ops->start)(dev);
> > > +
> > > + afu_mf_unlock(dev);
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev) {
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + int ret = 0;
> > > +
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > +
> > > + dev = afu_mf_rawdev_get_priv(rawdev);
> > > + if (!dev)
> > > + return;
> > > +
> > > + ret = afu_mf_trylock(dev);
> > > + if (ret) {
> > > + AFU_MF_PMD_WARN("AFU is busy, please stop it later");
> > > + return;
> > > + }
> > > +
> > > + if (dev->ops && dev->ops->stop)
> > > + ret = (*dev->ops->stop)(dev);
> > > +
> > > + afu_mf_unlock(dev);
> > > +}
> > > +
> > > +static int afu_mf_rawdev_close(struct rte_rawdev *rawdev) {
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + int ret = 0;
> > > +
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > +
> > > + dev = afu_mf_rawdev_get_priv(rawdev);
> > > + if (!dev)
> > > + return -ENODEV;
> > > +
> > > + if (dev->ops && dev->ops->close)
> > > + ret = (*dev->ops->close)(dev);
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev) {
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + int ret = 0;
> > > +
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > +
> > > + dev = afu_mf_rawdev_get_priv(rawdev);
> > > + if (!dev)
> > > + return -ENODEV;
> > > +
> > > + ret = afu_mf_trylock(dev);
> > > + if (ret) {
> > > + AFU_MF_PMD_WARN("AFU is busy, please reset it later");
> > > + return ret;
> > > + }
> > > +
> > > + if (dev->ops && dev->ops->reset)
> > > + ret = (*dev->ops->reset)(dev);
> > > +
> > > + afu_mf_unlock(dev);
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_selftest(uint16_t dev_id) {
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + int ret = 0;
> > > +
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > +
> > > + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> > > + return -ENODEV;
> > > +
> > > + dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
> > > + if (!dev)
> > > + return -ENOENT;
> > > +
> > > + ret = afu_mf_trylock(dev);
> > > + if (ret) {
> > > + AFU_MF_PMD_WARN("AFU is busy, please test it later");
> > > + return ret;
> > > + }
> > > +
> > > + if (dev->ops && dev->ops->test)
> > > + ret = (*dev->ops->test)(dev);
> > > +
> > > + afu_mf_unlock(dev);
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f) {
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + int ret = 0;
> > > +
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > +
> > > + dev = afu_mf_rawdev_get_priv(rawdev);
> > > + if (!dev)
> > > + return -ENODEV;
> > > +
> > > + if (dev->ops && dev->ops->dump)
> > > + ret = (*dev->ops->dump)(dev, f);
> > > +
> > > + return ret;
> > > +}
> > > +
> > > +static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
> > > + .dev_info_get = NULL,
> > > + .dev_configure = afu_mf_rawdev_configure,
> > > + .dev_start = afu_mf_rawdev_start,
> > > + .dev_stop = afu_mf_rawdev_stop,
> > > + .dev_close = afu_mf_rawdev_close,
> > > + .dev_reset = afu_mf_rawdev_reset,
> > > +
> > > + .queue_def_conf = NULL,
> > > + .queue_setup = NULL,
> > > + .queue_release = NULL,
> > > + .queue_count = NULL,
> > > +
> > > + .attr_get = NULL,
> > > + .attr_set = NULL,
> > > +
> > > + .enqueue_bufs = NULL,
> > > + .dequeue_bufs = NULL,
> > > +
> > > + .dump = afu_mf_rawdev_dump,
> > > +
> > > + .xstats_get = NULL,
> > > + .xstats_get_names = NULL,
> > > + .xstats_get_by_name = NULL,
> > > + .xstats_reset = NULL,
> > > +
> > > + .firmware_status_get = NULL,
> > > + .firmware_version_get = NULL,
> > > + .firmware_load = NULL,
> > > + .firmware_unload = NULL,
> > > +
> > > + .dev_selftest = afu_mf_rawdev_selftest, };
> > > +
> > > +static int
> > > +afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
> > > + int socket_id)
> > > +{
> > > + const struct rte_memzone *mz;
> > > + char mz_name[RTE_MEMZONE_NAMESIZE];
> > > + struct afu_mf_shared *ptr = NULL;
> > > + int init_mz = 0;
> > > +
> > > + if (!name || !data)
> > > + return -EINVAL;
> > > +
> > > + /* name format is afu_?|??:??.? which is unique */
> > > + snprintf(mz_name, sizeof(mz_name), "%s", name);
> > > +
> > > + mz = rte_memzone_lookup(mz_name);
> > > + if (!mz) {
> > > + mz = rte_memzone_reserve(mz_name,
> > > + sizeof(struct afu_mf_shared),
> > > + socket_id, 0);
> > > + init_mz = 1;
> > > + }
> > > +
> > > + if (!mz) {
> > > + AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
> > > + mz_name);
> > > + return -ENOMEM;
> > > + }
> > > +
> > > + ptr = (struct afu_mf_shared *)mz->addr;
> > > +
> > > + if (init_mz) /* initialize memory zone on the first time */
> > > + ptr->lock = 0;
> > > +
> > > + *data = ptr;
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev,
> > > +char
> > > *name,
> > > + size_t size)
> > > +{
> > > + int n = 0;
> > > +
> > > + if (!afu_dev || !name || !size)
> > > + return -EINVAL;
> > > +
> > > + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> > > + if (n >= (int)size) {
> > > + AFU_MF_PMD_ERR("Name of AFU device is too long!");
> > > + return -ENAMETOOLONG;
> > > + }
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id)
> {
> > > + struct afu_mf_drv *entry = NULL;
> > > + int i = 0;
> > > +
> > > + if (!afu_id)
> > > + return NULL;
> > > +
> > > + while ((entry = afu_table[i++])) {
> > > + if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
> > > + (entry->uuid.uuid_high == afu_id->uuid_high))
> > > + break;
> > > + }
> > > +
> > > + return entry ? entry->ops : NULL;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int
> > > +socket_id) {
> > > + struct rte_rawdev *rawdev = NULL;
> > > + struct afu_mf_rawdev *dev = NULL;
> > > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > > + int ret = 0;
> > > +
> > > + if (!afu_dev)
> > > + return -EINVAL;
> > > +
> > > + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> > > + if (ret)
> > > + return ret;
> > > +
> > > + AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
> > > + name, socket_id);
> > > +
> > > + /* Allocate device structure */
> > > + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct
> > > afu_mf_rawdev),
> > > + socket_id);
> > > + if (!rawdev) {
> > > + AFU_MF_PMD_ERR("Unable to allocate raw device");
> > > + return -ENOMEM;
> > > + }
> > > +
> > > + rawdev->dev_ops = &afu_mf_rawdev_ops;
> > > + rawdev->device = &afu_dev->device;
> > > + rawdev->driver_name = afu_dev->driver->driver.name;
> > > +
> > > + dev = afu_mf_rawdev_get_priv(rawdev);
> > > + if (!dev)
> > > + goto cleanup;
> > > +
> > > + dev->rawdev = rawdev;
> > > + dev->port = afu_dev->id.port;
> > > + dev->addr = afu_dev->mem_resource[0].addr;
> > > + dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
> > > + if (dev->ops == NULL) {
> > > + AFU_MF_PMD_ERR("Unsupported AFU device");
> > > + goto cleanup;
> > > + }
> > > +
> > > + if (dev->ops->init) {
> > > + ret = (*dev->ops->init)(dev);
> > > + if (ret) {
> > > + AFU_MF_PMD_ERR("Failed to init %s", name);
> > > + goto cleanup;
> > > + }
> > > + }
> > > +
> > > + ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
> > > + if (ret)
> > > + goto cleanup;
> > > +
> > > + return ret;
> > > +
> > > +cleanup:
> > > + rte_rawdev_pmd_release(rawdev);
> > > + return ret;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev) {
> > > + struct rte_rawdev *rawdev = NULL;
> > > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > > + int ret = 0;
> > > +
> > > + if (!afu_dev)
> > > + return -EINVAL;
> > > +
> > > + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> > > + if (ret)
> > > + return ret;
> > > +
> > > + AFU_MF_PMD_INFO("Destroy raw device %s", name);
> > > +
> > > + rawdev = rte_rawdev_pmd_get_named_dev(name);
> > > + if (!rawdev) {
> > > + AFU_MF_PMD_ERR("Raw device %s not found", name);
> > > + return -EINVAL;
> > > + }
> > > +
> > > + /* rte_rawdev_close is called by pmd_release */
> > > + ret = rte_rawdev_pmd_release(rawdev);
> > > + if (ret)
> > > + AFU_MF_PMD_DEBUG("Device cleanup failed");
> > > +
> > > + return 0;
> > > +}
> > > +
> > > +static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev) {
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > + return afu_mf_rawdev_create(afu_dev, rte_socket_id()); }
> > > +
> > > +static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev) {
> > > + AFU_MF_PMD_FUNC_TRACE();
> > > + return afu_mf_rawdev_destroy(afu_dev); }
> > > +
> > > +static struct rte_afu_driver afu_mf_pmd_drv = {
> > > + .id_table = afu_uuid_map,
> > > + .probe = afu_mf_rawdev_probe,
> > > + .remove = afu_mf_rawdev_remove
> > > +};
> > > +
> > > +RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME,
> > afu_mf_pmd_drv);
> > > +RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
> > > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h
> > > b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > > new file mode 100644
> > > index 0000000..df6715c
> > > --- /dev/null
> > > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > > @@ -0,0 +1,71 @@
> > > +/* SPDX-License-Identifier: BSD-3-Clause
> > > + * Copyright 2022 Intel Corporation */
> > > +
> > > +#ifndef __AFU_MF_RAWDEV_H__
> > > +#define __AFU_MF_RAWDEV_H__
> > > +
> > > +#include <stdint.h>
> > > +#include <stdio.h>
> > > +#include <unistd.h>
> > > +
> > > +#include <rte_cycles.h>
> > > +#include <rte_bus_ifpga.h>
> > > +#include <rte_rawdev.h>
> > > +
> > > +extern int afu_mf_pmd_logtype;
> > > +
> > > +#define AFU_MF_PMD_LOG(level, fmt, args...) \
> > > + rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n",
> \
> > > + __func__, ##args)
> > > +
> > > +#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG,
> ">>")
> > > +
> > > +#define AFU_MF_PMD_DEBUG(fmt, args...) \
> > > + AFU_MF_PMD_LOG(DEBUG, fmt, ## args) #define
> AFU_MF_PMD_INFO(fmt,
> > > +args...) \
> > > + AFU_MF_PMD_LOG(INFO, fmt, ## args) #define
> AFU_MF_PMD_ERR(fmt,
> > > +args...) \
> > > + AFU_MF_PMD_LOG(ERR, fmt, ## args)
> > > +#define AFU_MF_PMD_WARN(fmt, args...) \
> > > + AFU_MF_PMD_LOG(WARNING, fmt, ## args)
> > > +
> > > +struct afu_mf_rawdev;
> > > +
> > > +struct afu_mf_ops {
> > > + int (*init)(struct afu_mf_rawdev *dev);
> > > + int (*config)(struct afu_mf_rawdev *dev, void *config,
> > > + size_t config_size);
> > > + int (*start)(struct afu_mf_rawdev *dev);
> > > + int (*stop)(struct afu_mf_rawdev *dev);
> > > + int (*test)(struct afu_mf_rawdev *dev);
> > > + int (*close)(struct afu_mf_rawdev *dev);
> > > + int (*reset)(struct afu_mf_rawdev *dev);
> > > + int (*dump)(struct afu_mf_rawdev *dev, FILE *f); };
> > > +
> > > +struct afu_mf_drv {
> > > + struct rte_afu_uuid uuid;
> > > + struct afu_mf_ops *ops;
> > > +};
> > > +
> > > +struct afu_mf_shared {
> > > + int32_t lock;
> > > +};
> > > +
> > > +struct afu_mf_rawdev {
> > > + struct rte_rawdev *rawdev; /* point to parent raw device */
> > > + struct afu_mf_shared *shared; /* shared data for multi-process */
> > > + struct afu_mf_ops *ops; /* device operation functions */
> > > + int port; /* index of port the AFU attached */
> > > + void *addr; /* base address of AFU registers */
> > > + void *priv; /* private driver data */ };
> > > +
> > > +static inline struct afu_mf_rawdev * afu_mf_rawdev_get_priv(const
> > > +struct rte_rawdev *rawdev) {
> > > + return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private :
> > > +NULL; }
> > > +
> > > +#endif /* __AFU_MF_RAWDEV_H__ */
> > > diff --git a/drivers/raw/afu_mf/meson.build
> > > b/drivers/raw/afu_mf/meson.build new file mode 100644 index
> > > 0000000..80526a2
> > > --- /dev/null
> > > +++ b/drivers/raw/afu_mf/meson.build
> > > @@ -0,0 +1,5 @@
> > > +# SPDX-License-Identifier: BSD-3-Clause # Copyright 2022 Intel
> > > +Corporation
> > > +
> > > +deps += ['rawdev', 'bus_pci', 'bus_ifpga'] sources =
> > > +files('afu_mf_rawdev.c')
> > > diff --git a/drivers/raw/afu_mf/version.map
> > > b/drivers/raw/afu_mf/version.map new file mode 100644 index
> > > 0000000..c2e0723
> > > --- /dev/null
> > > +++ b/drivers/raw/afu_mf/version.map
> > > @@ -0,0 +1,3 @@
> > > +DPDK_22 {
> > > + local: *;
> > > +};
> > > diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build index
> > > 05e7de1..c3627f7 100644
> > > --- a/drivers/raw/meson.build
> > > +++ b/drivers/raw/meson.build
> > > @@ -6,6 +6,7 @@ if is_windows
> > > endif
> > >
> > > drivers = [
> > > + 'afu_mf',
> > > 'cnxk_bphy',
> > > 'cnxk_gpio',
> > > 'dpaa2_cmdif',
> > > --
> > > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread
* RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
2022-06-06 1:52 ` Zhang, Tianfei
2022-06-06 2:00 ` Zhang, Tianfei
@ 2022-06-07 2:35 ` Huang, Wei
1 sibling, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 2:35 UTC (permalink / raw)
To: Zhang, Tianfei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 09:53
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
>
>
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Friday, May 27, 2022 1:37 PM
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> > Wei <wei.huang@intel.com>
> > Subject: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
> >
> > Add multi-function AFU raw device driver to manage various AFU
> > (Acceleration Function Unit) in FPGA.
> > This driver implements common AFU raw device interfaces and exposes
> > them to application as standard raw device APIs.
> > Normal application can operate specified AFU as below, 1. call
> > rte_rawdev_pmd_get_named_dev() to find AFU raw device.
> > 2. call rte_rawdev_configure() to initialize AFU raw device.
> > 3. call rte_rawdev_selftest() to test function of AFU.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > v2: fix typo
> > ---
> > v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> > ---
> > v4: fix coding style issue and build error in FreeBSD13-64
> > ---
> > v5: split patch into several patches
> > ---
> > drivers/raw/afu_mf/afu_mf_rawdev.c | 425
> > +++++++++++++++++++++++++++++++++++++
> > drivers/raw/afu_mf/afu_mf_rawdev.h | 71 +++++++
> > drivers/raw/afu_mf/meson.build | 5 +
> > drivers/raw/afu_mf/version.map | 3 +
> > drivers/raw/meson.build | 1 +
> > 5 files changed, 505 insertions(+)
> > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
> > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
> > create mode 100644 drivers/raw/afu_mf/meson.build create mode
> 100644
> > drivers/raw/afu_mf/version.map
>
> I am thinking that just put those afu* c/h files into drivers/raw/ifpga/ folder
> is better? Because this AFU PMD driver is work on ifpga.
> And the file name of "afu_mf_rawdev.c" change to "afu_pmd_driver.c"?
>
agree
> >
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > new file mode 100644
> > index 0000000..5be372a
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > @@ -0,0 +1,425 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + */
> > +
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <string.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memzone.h>
> > +#include <rte_rawdev_pmd.h>
> > +
> > +#include "afu_mf_rawdev.h"
> > +
> > +#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> > +
> > +static const struct rte_afu_uuid afu_uuid_map[] = {
> > + { 0, 0 /* sentinel */ }
> > +};
> > +
> > +static struct afu_mf_drv *afu_table[] = {
> > + NULL
> > +};
> > +
> > +static inline int afu_mf_trylock(struct afu_mf_rawdev *dev) {
> > + int32_t x = 0;
> > +
> > + if (!dev || !dev->shared)
> > + return -ENODEV;
> > +
> > + x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
> > +
> > + if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock,
> &x,
> > 1,
> > + 1, __ATOMIC_ACQUIRE,
> __ATOMIC_RELAXED)
> > == 0))
> > + return -EBUSY;
> > +
> > + return 0;
> > +}
> > +
> > +static inline void afu_mf_unlock(struct afu_mf_rawdev *dev) {
> > + if (!dev || !dev->shared)
> > + return;
> > +
> > + __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE); }
> > +
> > +static int afu_mf_rawdev_configure(const struct rte_rawdev *rawdev,
> > + rte_rawdev_obj_t config, size_t config_size) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->config)
> > + ret = (*dev->ops->config)(dev, config, config_size);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_start(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please start it later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->start)
> > + ret = (*dev->ops->start)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static void afu_mf_rawdev_stop(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please stop it later");
> > + return;
> > + }
> > +
> > + if (dev->ops && dev->ops->stop)
> > + ret = (*dev->ops->stop)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +}
> > +
> > +static int afu_mf_rawdev_close(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->close)
> > + ret = (*dev->ops->close)(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_reset(struct rte_rawdev *rawdev) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please reset it later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->reset)
> > + ret = (*dev->ops->reset)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_selftest(uint16_t dev_id) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> > + return -ENODEV;
> > +
> > + dev = afu_mf_rawdev_get_priv(&rte_rawdevs[dev_id]);
> > + if (!dev)
> > + return -ENOENT;
> > +
> > + ret = afu_mf_trylock(dev);
> > + if (ret) {
> > + AFU_MF_PMD_WARN("AFU is busy, please test it later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->test)
> > + ret = (*dev->ops->test)(dev);
> > +
> > + afu_mf_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_dump(struct rte_rawdev *rawdev, FILE *f) {
> > + struct afu_mf_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_FUNC_TRACE();
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->dump)
> > + ret = (*dev->ops->dump)(dev, f);
> > +
> > + return ret;
> > +}
> > +
> > +static const struct rte_rawdev_ops afu_mf_rawdev_ops = {
> > + .dev_info_get = NULL,
> > + .dev_configure = afu_mf_rawdev_configure,
> > + .dev_start = afu_mf_rawdev_start,
> > + .dev_stop = afu_mf_rawdev_stop,
> > + .dev_close = afu_mf_rawdev_close,
> > + .dev_reset = afu_mf_rawdev_reset,
> > +
> > + .queue_def_conf = NULL,
> > + .queue_setup = NULL,
> > + .queue_release = NULL,
> > + .queue_count = NULL,
> > +
> > + .attr_get = NULL,
> > + .attr_set = NULL,
> > +
> > + .enqueue_bufs = NULL,
> > + .dequeue_bufs = NULL,
> > +
> > + .dump = afu_mf_rawdev_dump,
> > +
> > + .xstats_get = NULL,
> > + .xstats_get_names = NULL,
> > + .xstats_get_by_name = NULL,
> > + .xstats_reset = NULL,
> > +
> > + .firmware_status_get = NULL,
> > + .firmware_version_get = NULL,
> > + .firmware_load = NULL,
> > + .firmware_unload = NULL,
> > +
> > + .dev_selftest = afu_mf_rawdev_selftest, };
> > +
> > +static int
> > +afu_mf_shared_alloc(const char *name, struct afu_mf_shared **data,
> > + int socket_id)
> > +{
> > + const struct rte_memzone *mz;
> > + char mz_name[RTE_MEMZONE_NAMESIZE];
> > + struct afu_mf_shared *ptr = NULL;
> > + int init_mz = 0;
> > +
> > + if (!name || !data)
> > + return -EINVAL;
> > +
> > + /* name format is afu_?|??:??.? which is unique */
> > + snprintf(mz_name, sizeof(mz_name), "%s", name);
> > +
> > + mz = rte_memzone_lookup(mz_name);
> > + if (!mz) {
> > + mz = rte_memzone_reserve(mz_name,
> > + sizeof(struct afu_mf_shared),
> > + socket_id, 0);
> > + init_mz = 1;
> > + }
> > +
> > + if (!mz) {
> > + AFU_MF_PMD_ERR("Allocate memory zone %s failed!",
> > + mz_name);
> > + return -ENOMEM;
> > + }
> > +
> > + ptr = (struct afu_mf_shared *)mz->addr;
> > +
> > + if (init_mz) /* initialize memory zone on the first time */
> > + ptr->lock = 0;
> > +
> > + *data = ptr;
> > +
> > + return 0;
> > +}
> > +
> > +static int afu_mf_rawdev_name_get(struct rte_afu_device *afu_dev,
> > +char
> > *name,
> > + size_t size)
> > +{
> > + int n = 0;
> > +
> > + if (!afu_dev || !name || !size)
> > + return -EINVAL;
> > +
> > + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> > + if (n >= (int)size) {
> > + AFU_MF_PMD_ERR("Name of AFU device is too long!");
> > + return -ENAMETOOLONG;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_mf_ops *afu_mf_ops_get(struct rte_afu_uuid *afu_id) {
> > + struct afu_mf_drv *entry = NULL;
> > + int i = 0;
> > +
> > + if (!afu_id)
> > + return NULL;
> > +
> > + while ((entry = afu_table[i++])) {
> > + if ((entry->uuid.uuid_low == afu_id->uuid_low) &&
> > + (entry->uuid.uuid_high == afu_id->uuid_high))
> > + break;
> > + }
> > +
> > + return entry ? entry->ops : NULL;
> > +}
> > +
> > +static int afu_mf_rawdev_create(struct rte_afu_device *afu_dev, int
> > +socket_id) {
> > + struct rte_rawdev *rawdev = NULL;
> > + struct afu_mf_rawdev *dev = NULL;
> > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > + int ret = 0;
> > +
> > + if (!afu_dev)
> > + return -EINVAL;
> > +
> > + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> > + if (ret)
> > + return ret;
> > +
> > + AFU_MF_PMD_INFO("Create raw device %s on NUMA node %d",
> > + name, socket_id);
> > +
> > + /* Allocate device structure */
> > + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct
> > afu_mf_rawdev),
> > + socket_id);
> > + if (!rawdev) {
> > + AFU_MF_PMD_ERR("Unable to allocate raw device");
> > + return -ENOMEM;
> > + }
> > +
> > + rawdev->dev_ops = &afu_mf_rawdev_ops;
> > + rawdev->device = &afu_dev->device;
> > + rawdev->driver_name = afu_dev->driver->driver.name;
> > +
> > + dev = afu_mf_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + goto cleanup;
> > +
> > + dev->rawdev = rawdev;
> > + dev->port = afu_dev->id.port;
> > + dev->addr = afu_dev->mem_resource[0].addr;
> > + dev->ops = afu_mf_ops_get(&afu_dev->id.uuid);
> > + if (dev->ops == NULL) {
> > + AFU_MF_PMD_ERR("Unsupported AFU device");
> > + goto cleanup;
> > + }
> > +
> > + if (dev->ops->init) {
> > + ret = (*dev->ops->init)(dev);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed to init %s", name);
> > + goto cleanup;
> > + }
> > + }
> > +
> > + ret = afu_mf_shared_alloc(name, &dev->shared, socket_id);
> > + if (ret)
> > + goto cleanup;
> > +
> > + return ret;
> > +
> > +cleanup:
> > + rte_rawdev_pmd_release(rawdev);
> > + return ret;
> > +}
> > +
> > +static int afu_mf_rawdev_destroy(struct rte_afu_device *afu_dev) {
> > + struct rte_rawdev *rawdev = NULL;
> > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > + int ret = 0;
> > +
> > + if (!afu_dev)
> > + return -EINVAL;
> > +
> > + ret = afu_mf_rawdev_name_get(afu_dev, name, sizeof(name));
> > + if (ret)
> > + return ret;
> > +
> > + AFU_MF_PMD_INFO("Destroy raw device %s", name);
> > +
> > + rawdev = rte_rawdev_pmd_get_named_dev(name);
> > + if (!rawdev) {
> > + AFU_MF_PMD_ERR("Raw device %s not found", name);
> > + return -EINVAL;
> > + }
> > +
> > + /* rte_rawdev_close is called by pmd_release */
> > + ret = rte_rawdev_pmd_release(rawdev);
> > + if (ret)
> > + AFU_MF_PMD_DEBUG("Device cleanup failed");
> > +
> > + return 0;
> > +}
> > +
> > +static int afu_mf_rawdev_probe(struct rte_afu_device *afu_dev) {
> > + AFU_MF_PMD_FUNC_TRACE();
> > + return afu_mf_rawdev_create(afu_dev, rte_socket_id()); }
> > +
> > +static int afu_mf_rawdev_remove(struct rte_afu_device *afu_dev) {
> > + AFU_MF_PMD_FUNC_TRACE();
> > + return afu_mf_rawdev_destroy(afu_dev); }
> > +
> > +static struct rte_afu_driver afu_mf_pmd_drv = {
> > + .id_table = afu_uuid_map,
> > + .probe = afu_mf_rawdev_probe,
> > + .remove = afu_mf_rawdev_remove
> > +};
> > +
> > +RTE_PMD_REGISTER_AFU(AFU_MF_PMD_RAWDEV_NAME,
> afu_mf_pmd_drv);
> > +RTE_LOG_REGISTER_DEFAULT(afu_mf_pmd_logtype, NOTICE);
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h
> > b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > new file mode 100644
> > index 0000000..df6715c
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > @@ -0,0 +1,71 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + */
> > +
> > +#ifndef __AFU_MF_RAWDEV_H__
> > +#define __AFU_MF_RAWDEV_H__
> > +
> > +#include <stdint.h>
> > +#include <stdio.h>
> > +#include <unistd.h>
> > +
> > +#include <rte_cycles.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +extern int afu_mf_pmd_logtype;
> > +
> > +#define AFU_MF_PMD_LOG(level, fmt, args...) \
> > + rte_log(RTE_LOG_ ## level, afu_mf_pmd_logtype, "%s(): " fmt "\n",
> \
> > + __func__, ##args)
> > +
> > +#define AFU_MF_PMD_FUNC_TRACE() AFU_MF_PMD_LOG(DEBUG,
> ">>")
> > +
> > +#define AFU_MF_PMD_DEBUG(fmt, args...) \
> > + AFU_MF_PMD_LOG(DEBUG, fmt, ## args)
> > +#define AFU_MF_PMD_INFO(fmt, args...) \
> > + AFU_MF_PMD_LOG(INFO, fmt, ## args)
> > +#define AFU_MF_PMD_ERR(fmt, args...) \
> > + AFU_MF_PMD_LOG(ERR, fmt, ## args)
> > +#define AFU_MF_PMD_WARN(fmt, args...) \
> > + AFU_MF_PMD_LOG(WARNING, fmt, ## args)
> > +
> > +struct afu_mf_rawdev;
> > +
> > +struct afu_mf_ops {
> > + int (*init)(struct afu_mf_rawdev *dev);
> > + int (*config)(struct afu_mf_rawdev *dev, void *config,
> > + size_t config_size);
> > + int (*start)(struct afu_mf_rawdev *dev);
> > + int (*stop)(struct afu_mf_rawdev *dev);
> > + int (*test)(struct afu_mf_rawdev *dev);
> > + int (*close)(struct afu_mf_rawdev *dev);
> > + int (*reset)(struct afu_mf_rawdev *dev);
> > + int (*dump)(struct afu_mf_rawdev *dev, FILE *f); };
> > +
> > +struct afu_mf_drv {
> > + struct rte_afu_uuid uuid;
> > + struct afu_mf_ops *ops;
> > +};
> > +
> > +struct afu_mf_shared {
> > + int32_t lock;
> > +};
> > +
> > +struct afu_mf_rawdev {
> > + struct rte_rawdev *rawdev; /* point to parent raw device */
> > + struct afu_mf_shared *shared; /* shared data for multi-process */
> > + struct afu_mf_ops *ops; /* device operation functions */
> > + int port; /* index of port the AFU attached */
> > + void *addr; /* base address of AFU registers */
> > + void *priv; /* private driver data */ };
> > +
> > +static inline struct afu_mf_rawdev *
> > +afu_mf_rawdev_get_priv(const struct rte_rawdev *rawdev) {
> > + return rawdev ? (struct afu_mf_rawdev *)rawdev->dev_private :
> NULL;
> > +}
> > +
> > +#endif /* __AFU_MF_RAWDEV_H__ */
> > diff --git a/drivers/raw/afu_mf/meson.build
> > b/drivers/raw/afu_mf/meson.build new file mode 100644 index
> > 0000000..80526a2
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/meson.build
> > @@ -0,0 +1,5 @@
> > +# SPDX-License-Identifier: BSD-3-Clause # Copyright 2022 Intel
> > +Corporation
> > +
> > +deps += ['rawdev', 'bus_pci', 'bus_ifpga'] sources =
> > +files('afu_mf_rawdev.c')
> > diff --git a/drivers/raw/afu_mf/version.map
> > b/drivers/raw/afu_mf/version.map new file mode 100644 index
> > 0000000..c2e0723
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/version.map
> > @@ -0,0 +1,3 @@
> > +DPDK_22 {
> > + local: *;
> > +};
> > diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build index
> > 05e7de1..c3627f7 100644
> > --- a/drivers/raw/meson.build
> > +++ b/drivers/raw/meson.build
> > @@ -6,6 +6,7 @@ if is_windows
> > endif
> >
> > drivers = [
> > + 'afu_mf',
> > 'cnxk_bphy',
> > 'cnxk_gpio',
> > 'dpaa2_cmdif',
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread
* Re: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
2022-05-27 5:37 ` [PATCH v5 1/5] drivers/raw: introduce AFU " Wei Huang
2022-06-06 1:52 ` Zhang, Tianfei
@ 2022-06-06 15:38 ` Stephen Hemminger
2022-06-07 1:36 ` Huang, Wei
1 sibling, 1 reply; 57+ messages in thread
From: Stephen Hemminger @ 2022-06-06 15:38 UTC (permalink / raw)
To: Wei Huang
Cc: dev, thomas, nipun.gupta, hemant.agrawal, stable, rosen.xu,
tianfei.zhang, qi.z.zhang
On Fri, 27 May 2022 01:37:00 -0400
Wei Huang <wei.huang@intel.com> wrote:
> +static inline int afu_mf_trylock(struct afu_mf_rawdev *dev)
> +{
> + int32_t x = 0;
> +
> + if (!dev || !dev->shared)
> + return -ENODEV;
> +
> + x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
> +
> + if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock, &x, 1,
> + 1, __ATOMIC_ACQUIRE, __ATOMIC_RELAXED) == 0))
> + return -EBUSY;
> +
> + return 0;
> +}
> +
> +static inline void afu_mf_unlock(struct afu_mf_rawdev *dev)
> +{
> + if (!dev || !dev->shared)
> + return;
> +
> + __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE);
> +}
What other subsystem is this shared with?
Is there a good reason it can't just use existing spinlock?
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
2022-06-06 15:38 ` Stephen Hemminger
@ 2022-06-07 1:36 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 1:36 UTC (permalink / raw)
To: Stephen Hemminger
Cc: dev, thomas, nipun.gupta, hemant.agrawal, stable, Xu, Rosen,
Zhang, Tianfei, Zhang, Qi Z
> -----Original Message-----
> From: Stephen Hemminger <stephen@networkplumber.org>
> Sent: Monday, June 6, 2022 23:38
> To: Huang, Wei <wei.huang@intel.com>
> Cc: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com; stable@dpdk.org; Xu, Rosen
> <rosen.xu@intel.com>; Zhang, Tianfei <tianfei.zhang@intel.com>; Zhang, Qi
> Z <qi.z.zhang@intel.com>
> Subject: Re: [PATCH v5 1/5] drivers/raw: introduce AFU raw device driver
>
> On Fri, 27 May 2022 01:37:00 -0400
> Wei Huang <wei.huang@intel.com> wrote:
>
> > +static inline int afu_mf_trylock(struct afu_mf_rawdev *dev) {
> > + int32_t x = 0;
> > +
> > + if (!dev || !dev->shared)
> > + return -ENODEV;
> > +
> > + x = __atomic_load_n(&dev->shared->lock, __ATOMIC_RELAXED);
> > +
> > + if ((x != 0) || (__atomic_compare_exchange_n(&dev->shared->lock,
> &x, 1,
> > + 1, __ATOMIC_ACQUIRE,
> __ATOMIC_RELAXED) == 0))
> > + return -EBUSY;
> > +
> > + return 0;
> > +}
> > +
> > +static inline void afu_mf_unlock(struct afu_mf_rawdev *dev) {
> > + if (!dev || !dev->shared)
> > + return;
> > +
> > + __atomic_store_n(&dev->shared->lock, 0, __ATOMIC_RELEASE); }
>
> What other subsystem is this shared with?
> Is there a good reason it can't just use existing spinlock?
This lock is used in multi-process situation, it prevent AFU from being operated by two DPDK process simultaneously.
I can use spinlock to replace it, thanks.
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
2022-05-27 5:37 ` [PATCH v5 1/5] drivers/raw: introduce AFU " Wei Huang
@ 2022-05-27 5:37 ` Wei Huang
2022-06-06 1:38 ` Zhang, Tianfei
2022-05-27 5:37 ` [PATCH v5 3/5] raw/afu_mf: add HE-LBK " Wei Huang
` (4 subsequent siblings)
6 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-05-27 5:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
and DMA is used to test local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 4 +
drivers/raw/afu_mf/afu_mf_rawdev.h | 18 +
drivers/raw/afu_mf/meson.build | 4 +-
drivers/raw/afu_mf/n3000_afu.c | 2005 ++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
drivers/raw/afu_mf/rte_pmd_afu.h | 97 ++
6 files changed, 2460 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/afu_mf/n3000_afu.c
create mode 100644 drivers/raw/afu_mf/n3000_afu.h
create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
index 5be372a..7c18f3b 100644
--- a/drivers/raw/afu_mf/afu_mf_rawdev.c
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -17,15 +17,19 @@
#include <rte_memzone.h>
#include <rte_rawdev_pmd.h>
+#include "rte_pmd_afu.h"
#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
static const struct rte_afu_uuid afu_uuid_map[] = {
+ { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
{ 0, 0 /* sentinel */ }
};
static struct afu_mf_drv *afu_table[] = {
+ &n3000_afu_drv,
NULL
};
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h b/drivers/raw/afu_mf/afu_mf_rawdev.h
index df6715c..5a66f6c 100644
--- a/drivers/raw/afu_mf/afu_mf_rawdev.h
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
@@ -30,6 +30,24 @@
#define AFU_MF_PMD_WARN(fmt, args...) \
AFU_MF_PMD_LOG(WARNING, fmt, ## args)
+#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
+#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines */
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
struct afu_mf_rawdev;
struct afu_mf_ops {
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
index 80526a2..8a989e3 100644
--- a/drivers/raw/afu_mf/meson.build
+++ b/drivers/raw/afu_mf/meson.build
@@ -2,4 +2,6 @@
# Copyright 2022 Intel Corporation
deps += ['rawdev', 'bus_pci', 'bus_ifpga']
-sources = files('afu_mf_rawdev.c')
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c')
+
+headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/n3000_afu.c b/drivers/raw/afu_mf/n3000_afu.c
new file mode 100644
index 0000000..19d7c54
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.c
@@ -0,0 +1,2005 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "n3000_afu.h"
+
+static int nlb_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
+ cl, stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ return 0;
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ AFU_MF_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ AFU_MF_PMD_ERR("Timeout");
+ ret = -ETIMEDOUT;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ AFU_MF_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ AFU_MF_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
+ AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ AFU_MF_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ AFU_MF_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
+ ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(uintptr_t)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(uintptr_t)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ AFU_MF_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(uintptr_t)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(uintptr_t)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double getTime(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ AFU_MF_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ AFU_MF_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ AFU_MF_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_mf_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+#ifdef VFIO_PRESENT
+static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+#endif
+
+static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ AFU_MF_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release:
+ nlb_afu_ctx_release(dev);
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ AFU_MF_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+#ifdef VFIO_PRESENT
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ AFU_MF_PMD_ERR("DMA interrupt setup failed");
+#endif
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ AFU_MF_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_mf_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ AFU_MF_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ AFU_MF_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_mf_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_mf_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+struct afu_mf_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
diff --git a/drivers/raw/afu_mf/n3000_afu.h b/drivers/raw/afu_mf/n3000_afu.h
new file mode 100644
index 0000000..4c740da
--- /dev/null
+++ b/drivers/raw/afu_mf/n3000_afu.h
@@ -0,0 +1,333 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _N3000_AFU_H_
+#define _N3000_AFU_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+extern struct afu_mf_drv n3000_afu_drv;
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#endif /* _N3000_AFU_H_ */
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
new file mode 100644
index 0000000..f14a053
--- /dev/null
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver
2022-05-27 5:37 ` [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver Wei Huang
@ 2022-06-06 1:38 ` Zhang, Tianfei
2022-06-07 2:40 ` Huang, Wei
0 siblings, 1 reply; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-06 1:38 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Friday, May 27, 2022 1:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver
>
> N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
> and DMA is used to test local memory.
> This driver initialize the modules and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> drivers/raw/afu_mf/afu_mf_rawdev.c | 4 +
> drivers/raw/afu_mf/afu_mf_rawdev.h | 18 +
> drivers/raw/afu_mf/meson.build | 4 +-
> drivers/raw/afu_mf/n3000_afu.c | 2005
> ++++++++++++++++++++++++++++++++++++
> drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
> drivers/raw/afu_mf/rte_pmd_afu.h | 97 ++
> 6 files changed, 2460 insertions(+), 1 deletion(-)
> create mode 100644 drivers/raw/afu_mf/n3000_afu.c
> create mode 100644 drivers/raw/afu_mf/n3000_afu.h
> create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
>
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> b/drivers/raw/afu_mf/afu_mf_rawdev.c
> index 5be372a..7c18f3b 100644
> --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> @@ -17,15 +17,19 @@
> #include <rte_memzone.h>
> #include <rte_rawdev_pmd.h>
>
> +#include "rte_pmd_afu.h"
> #include "afu_mf_rawdev.h"
> +#include "n3000_afu.h"
>
> #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
>
> static const struct rte_afu_uuid afu_uuid_map[] = {
> + { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> { 0, 0 /* sentinel */ }
> };
>
> static struct afu_mf_drv *afu_table[] = {
> + &n3000_afu_drv,
> NULL
> };
>
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h
> b/drivers/raw/afu_mf/afu_mf_rawdev.h
> index df6715c..5a66f6c 100644
> --- a/drivers/raw/afu_mf/afu_mf_rawdev.h
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
> @@ -30,6 +30,24 @@
> #define AFU_MF_PMD_WARN(fmt, args...) \
> AFU_MF_PMD_LOG(WARNING, fmt, ## args)
>
> +#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
> +#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines */
> +#define MHZ(f) ((f) * 1000000)
> +
> +#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
> +({ \
> + uint64_t __wait = 0; \
> + uint64_t __invl = (invl); \
> + uint64_t __timeout = (timeout); \
> + for (; __wait <= __timeout; __wait += __invl) { \
> + (val) = *(addr); \
> + if (cond) \
> + break; \
> + rte_delay_ms(__invl); \
> + } \
> + (cond) ? 0 : 1; \
> +})
Dsm means DMA?
> +
> struct afu_mf_rawdev;
>
> struct afu_mf_ops {
> diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
> index 80526a2..8a989e3 100644
> --- a/drivers/raw/afu_mf/meson.build
> +++ b/drivers/raw/afu_mf/meson.build
> @@ -2,4 +2,6 @@
> # Copyright 2022 Intel Corporation
>
> deps += ['rawdev', 'bus_pci', 'bus_ifpga']
> -sources = files('afu_mf_rawdev.c')
> +sources = files('afu_mf_rawdev.c', 'n3000_afu.c')
> +
> +headers = files('rte_pmd_afu.h')
> diff --git a/drivers/raw/afu_mf/n3000_afu.c b/drivers/raw/afu_mf/n3000_afu.c
> new file mode 100644
> index 0000000..19d7c54
> --- /dev/null
> +++ b/drivers/raw/afu_mf/n3000_afu.c
> @@ -0,0 +1,2005 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "n3000_afu.h"
> +
> +static int nlb_afu_config(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->nlb_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + if (cfg->cache_policy == NLB_WRPUSH_I)
> + v.wrpush_i = 1;
> + else
> + v.wrthru_en = cfg->cache_policy;
> +
> + if (cfg->cache_hint == NLB_RDLINE_MIXED)
> + v.rdsel = 3;
> + else
> + v.rdsel = cfg->cache_hint;
> +
> + v.mode = cfg->mode;
> + v.chsel = cfg->read_vc;
> + v.wr_chsel = cfg->write_vc;
> + v.wrfence_chsel = cfg->wrfence_vc;
> + v.wrthru_en = cfg->cache_policy;
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_dsm_status *stat = NULL;
> + uint64_t ticks = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + cfg = &priv->nlb_cfg;
> + stat = priv->nlb_ctx.status_ptr;
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0)
> + cfg->freq_mhz = 200;
> +
> + num = (double)stat->num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat->num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
> + "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
> + printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
> + cl, stat->num_reads, stat->num_writes, ticks,
> + rd_bw / 1e9, wr_bw / 1e9);
> +}
> +
> +static int nlb_afu_test(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + ctx = &priv->nlb_ctx;
> + cfg = &priv->nlb_cfg;
> +
> + /* initialize registers */
> + AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
> + rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
> + AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
> +
> + ret = nlb_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl, ctx->addr + CSR_NUM_LINES);
> +
> + rte_delay_us(10);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + nlb_afu_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + AFU_MF_PMD_ERR("Data mismatch @ %u", i);
> + break;
> + }
> + }
> + }
> +
> +end:
> + return ret;
> +}
> +
> +static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
> +{
> + int i = 0;
> +
> + if (!ctx)
> + return;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + rte_free(ctx->dma_buf[i]);
> + ctx->dma_buf[i] = NULL;
> + }
> +
> + rte_free(ctx->data_buf);
> + ctx->data_buf = NULL;
> +
> + rte_free(ctx->ref_buf);
> + ctx->ref_buf = NULL;
> +}
> +
> +static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
> + struct rte_pmd_afu_dma_cfg *cfg)
> +{
> + size_t page_sz = sysconf(_SC_PAGE_SIZE);
> + int i, ret = 0;
> +
> + if (!ctx || !cfg)
> + return -EINVAL;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
> + TEST_MEM_ALIGN);
> + if (!ctx->dma_buf[i]) {
> + ret = -ENOMEM;
> + goto free;
> + }
> + ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
> + if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto free;
> + }
> + }
> +
> + ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->data_buf) {
> + ret = -ENOMEM;
> + goto free;
> + }
> +
> + ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->ref_buf) {
> + ret = -ENOMEM;
> + goto free;
> + }
Suppose that If ctx->ref_buf alloc fail, the dma_afu_buf_free() will work correct?
> +
> + return 0;
> +
> +free:
> + dma_afu_buf_free(ctx);
> + return ret;
> +}
> +
> +static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
> +{
> + int *ptr = NULL;
> + size_t i = 0;
> + size_t dword_size = 0;
> +
> + if (!ctx || !size)
> + return;
> +
> + ptr = (int *)ctx->ref_buf;
> +
> + if (ctx->pattern) {
> + memset(ptr, ctx->pattern, size);
> + } else {
> + srand(99);
> + dword_size = size >> 2;
> + for (i = 0; i < dword_size; i++)
> + *ptr++ = rand();
> + }
> + rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
> +}
> +
> +static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
> +{
> + uint8_t *src = NULL;
> + uint8_t *dst = NULL;
> + size_t i = 0;
> + int n = 0;
> +
> + if (!ctx || !size)
> + return -EINVAL;
> +
> + src = (uint8_t *)ctx->ref_buf;
> + dst = (uint8_t *)ctx->data_buf;
> +
> + if (memcmp(src, dst, size)) {
> + printf("Transfer is corrupted\n");
> + if (ctx->verbose) {
> + for (i = 0; i < size; i++) {
> + if (*src != *dst) {
> + if (++n >= ERR_CHECK_LIMIT)
> + break;
> + printf("Mismatch at 0x%zx, "
> + "Expected %02x Actual
> %02x\n",
> + i, *src, *dst);
> + }
> + src++;
> + dst++;
> + }
> + if (n < ERR_CHECK_LIMIT) {
> + printf("Found %d error bytes\n", n);
> + } else {
> + printf("......\n");
> + printf("Found more than %d error bytes\n", n);
> + }
> + }
> + return -1;
> + }
> +
> + printf("Transfer is verified\n");
> + return 0;
> +}
> +
> +static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + rte_write64(*host_addr, dev_addr);
> +}
> +
> +static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + *host_addr = rte_read64(dev_addr);
> +}
> +
> +static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
> +{
> + uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
> +
> + if (!ctx)
> + return;
> +
> + if (requested_page != ctx->cur_ase_page) {
> + rte_write64(requested_page, ctx->ase_ctrl_addr);
> + ctx->cur_ase_page = requested_page;
> + }
> +}
> +
> +static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)",
> host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
> +
> + /* write back to device */
> + rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
> +
> + return 0;
> +}
> +
> +static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")",
> src, dst,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(dst))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(dst)) {
> + /* Write out a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> +
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Write out blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= dst & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)src, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Write out remaining DWORD */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t count)
> +{
> + uint64_t dst = *dst_ptr;
> + uint64_t src = *src_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")",
> src, dst,
> + count);
> +
> + /* aligns address to 8 byte using dst masking method */
> + if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + src += unaligned_size;
> + dst += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_write(ctx, &dst, &src, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using dst masking method */
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)",
> host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
> +
> + return 0;
> +}
> +
> +static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")",
> dst, src,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(src))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(src)) {
> + /* Read a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Read blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= src & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)dst, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Read remaining DWORD */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")",
> src, dst,
> + count);
> +
> + /* Aligns address to 8 byte using src masking method */
> + if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + dst += unaligned_size;
> + src += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_read(ctx, &src, &dst, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using src masking method */
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static void clear_interrupt(struct dma_afu_ctx *ctx)
> +{
> + /* clear interrupt by writing 1 to IRQ bit in status register */
> + msgdma_status status;
> +
> + if (!ctx)
> + return;
> +
> + status.csr = 0;
> + status.irq = 1;
> + rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
> +}
> +
> +static int poll_interrupt(struct dma_afu_ctx *ctx)
> +{
> + struct pollfd pfd = {0};
> + uint64_t count = 0;
> + ssize_t bytes_read = 0;
> + int poll_ret = 0;
> + int ret = 0;
> +
> + if (!ctx || (ctx->event_fd < 0))
> + return -EINVAL;
> +
> + pfd.fd = ctx->event_fd;
> + pfd.events = POLLIN;
> + poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
> + if (poll_ret < 0) {
> + AFU_MF_PMD_ERR("Error %s", strerror(errno));
> + ret = -EFAULT;
> + goto out;
> + } else if (poll_ret == 0) {
> + AFU_MF_PMD_ERR("Timeout");
> + ret = -ETIMEDOUT;
> + } else {
> + bytes_read = read(pfd.fd, &count, sizeof(count));
> + if (bytes_read > 0) {
> + if (ctx->verbose)
> + AFU_MF_PMD_DEBUG("Successful, ret %d, cnt
> %"PRIu64,
> + poll_ret, count);
> + ret = 0;
> + } else {
> + AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
> + strerror(errno) : "zero bytes read");
> + ret = -EIO;
> + }
> + }
> +out:
> + clear_interrupt(ctx);
> + return ret;
> +}
> +
> +static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
> +{
> + msgdma_status status;
> + uint64_t fpga_queue_full = 0;
> +
> + if (!ctx)
> + return;
> +
> + if (ctx->verbose) {
> + AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
> + desc->rd_address_ext, desc->rd_address);
> + AFU_MF_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
> + desc->wr_address_ext, desc->wr_address);
> + AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
> + AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
> + desc->wr_burst_count);
> + AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
> + desc->rd_burst_count);
> + AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc-
> >wr_stride);
> + AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc-
> >rd_stride);
> + }
> +
> + do {
> + status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
> + if (fpga_queue_full++ > 100000000) {
> + AFU_MF_PMD_DEBUG("DMA queue full retry");
> + fpga_queue_full = 0;
> + }
> + } while (status.desc_buf_full);
> +
> + blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
> + sizeof(*desc));
> +}
> +
> +static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + int count, int is_last_desc, fpga_dma_type type, int intr_en)
> +{
> + msgdma_ext_desc *desc = NULL;
> + int alignment_offset = 0;
> + int segment_size = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + /* src, dst and count must be 64-byte aligned */
> + if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
> + !IS_DMA_ALIGNED(count))
> + return -EINVAL;
> + memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
> +
> + /* these fields are fixed for all DMA transfers */
> + desc = ctx->desc_buf;
> + desc->seq_num = 0;
> + desc->wr_stride = 1;
> + desc->rd_stride = 1;
> + desc->control.go = 1;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + else
> + desc->control.transfer_irq_en = 0;
> +
> + if (!is_last_desc)
> + desc->control.early_done_en = 1;
> + else
> + desc->control.early_done_en = 0;
> +
> + if (type == FPGA_TO_FPGA) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
> + send_descriptor(ctx, desc);
> + } else {
> + /* check CCIP (host) address is aligned to 4CL (256B) */
> + alignment_offset = (type == HOST_TO_FPGA)
> + ? (src % CCIP_ALIGN_BYTES) : (dst %
> CCIP_ALIGN_BYTES);
> + /* performing a short transfer to get aligned */
> + if (alignment_offset != 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* count isn't large enough to hit next 4CL boundary */
> + if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = CCIP_ALIGN_BYTES
> + - alignment_offset;
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + /* post short transfer to align to a 4CL (256 byte) */
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* at this point we are 4CL (256 byte) aligned */
> + if (count >= CCIP_ALIGN_BYTES) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* buffer ends on 4CL boundary */
> + if ((count % CCIP_ALIGN_BYTES) == 0) {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = count
> + - (count % CCIP_ALIGN_BYTES);
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* post short transfer to handle the remainder */
> + if (count > 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + send_descriptor(ctx, desc);
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int issue_magic(struct dma_afu_ctx *ctx)
> +{
> + *(ctx->magic_buf) = 0ULL;
> + return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
> + DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
> +}
> +
> +static void wait_magic(struct dma_afu_ctx *ctx)
> +{
> + int magic_timeout = 0;
> +
> + if (!ctx)
> + return;
> +
> + poll_interrupt(ctx);
> + while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
> + if (magic_timeout++ > 1000) {
> + AFU_MF_PMD_ERR("DMA magic operation timeout");
> + magic_timeout = 0;
> + break;
> + }
> + }
> + *(ctx->magic_buf) = 0ULL;
> +}
> +
> +static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, int *intr_issued)
> +{
> + int intr_en = 0;
> + int ret = 0;
> +
> + if (!ctx || !intr_issued)
> + return -EINVAL;
> +
> + src += chunk * ctx->dma_buf_size;
> + dst += chunk * ctx->dma_buf_size;
> +
> + if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) ||
> is_last_chunk) {
> + if (*intr_issued) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> + intr_en = 1;
> + }
> +
> + chunk %= NUM_DMA_BUF;
> + rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
> + ctx->dma_buf_size);
> + ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
> + ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
> + if (intr_en)
> + *intr_issued = 1;
> +
> + return ret;
> +}
> +
> +static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t
> src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t dma_tx_bytes = 0;
> + uint64_t offset = 0;
> + int issued_intr = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(dst)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_host_to_fpga(ctx, &dst, &src, count_left);
> +
> + aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - dst;
> + ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_tx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1), &issued_intr);
> + if (ret)
> + return ret;
> + }
> +
> + if (issued_intr) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + if (count_left) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_tx_bytes = i * DMA_ALIGN_BYTES;
> + AFU_MF_PMD_DEBUG("left over 0x%"PRIx64"
> to DMA",
> + dma_tx_bytes);
> + rte_memcpy(ctx->dma_buf[0],
> + (void *)(uintptr_t)(src + offset),
> + dma_tx_bytes);
> + ret = do_dma(ctx, dst + offset,
> + DMA_HOST_ADDR(ctx->dma_iova[0]),
> + dma_tx_bytes, 1, HOST_TO_FPGA, 1);
> + if (ret)
> + return ret;
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + count_left -= dma_tx_bytes;
> + if (count_left) {
> + AFU_MF_PMD_DEBUG("left over 0x%"PRIx64"
> to ASE",
> + count_left);
> + dst += offset + dma_tx_bytes;
> + src += offset + dma_tx_bytes;
> + ret = ase_host_to_fpga(ctx, &dst, &src,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
> +{
> + uint64_t i = chunk % NUM_DMA_BUF;
> + uint64_t n = *rx_count;
> + uint64_t num_pending = 0;
> + int ret = 0;
> +
> + if (!ctx || !wf_issued)
> + return -EINVAL;
> +
> + ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
> + src + chunk * ctx->dma_buf_size,
> + ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> +
> + num_pending = chunk - n + 1;
> + if (num_pending == HALF_DMA_BUF) {
> + ret = issue_magic(ctx);
> + if (ret) {
> + AFU_MF_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
> + if (*wf_issued) {
> + wait_magic(ctx);
> + for (i = 0; i < HALF_DMA_BUF; i++) {
> + rte_memcpy((void *)(uintptr_t)(dst +
> + n * ctx->dma_buf_size),
> + ctx->dma_buf[n % NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + n++;
> + }
> + *wf_issued = 0;
> + *rx_count = n;
> + }
> + ret = issue_magic(ctx);
> + if (ret) {
> + AFU_MF_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t
> src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t pending_buf = 0;
> + uint64_t dma_rx_bytes = 0;
> + uint64_t offset = 0;
> + int wf_issued = 0;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(src)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_fpga_to_host(ctx, &src, &dst, count_left);
> +
> + aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - src;
> + ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_rx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1),
> + &pending_buf, &wf_issued);
> + if (ret)
> + return ret;
> + }
> +
> + if (wf_issued)
> + wait_magic(ctx);
> +
> + /* clear out final dma memcpy operations */
> + while (pending_buf < dma_chunks) {
> + /* constant size transfer; no length check required */
> + rte_memcpy((void *)(uintptr_t)(dst +
> + pending_buf * ctx->dma_buf_size),
> + ctx->dma_buf[pending_buf %
> NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + pending_buf++;
> + }
> +
> + if (count_left > 0) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_rx_bytes = i * DMA_ALIGN_BYTES;
> + AFU_MF_PMD_DEBUG("left over 0x%"PRIx64"
> to DMA",
> + dma_rx_bytes);
> + ret = do_dma(ctx,
> + DMA_HOST_ADDR(ctx->dma_iova[0]),
> + src + offset,
> + dma_rx_bytes, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + rte_memcpy((void *)(uintptr_t)(dst + offset),
> + ctx->dma_buf[0], dma_rx_bytes);
> + }
> +
> + count_left -= dma_rx_bytes;
> + if (count_left) {
> + AFU_MF_PMD_DEBUG("left over 0x%"PRIx64"
> to ASE",
> + count_left);
> + dst += offset + dma_rx_bytes;
> + src += offset + dma_rx_bytes;
> + ret = ase_fpga_to_host(ctx, &src, &dst,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t
> src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t dma_chunks = 0;
> + uint64_t offset = 0;
> + uint32_t tx_chunks = 0;
> + uint64_t *tmp_buf = NULL;
> + int ret = 0;
> +
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
> + && IS_DMA_ALIGNED(count_left)) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + if ((((i + 1) % NUM_DMA_BUF) == 0) ||
> + (i == (dma_chunks - 1))) {
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + }
> +
> + if (count_left > 0) {
> + AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to
> DMA", count_left);
> + ret = do_dma(ctx, dst + offset, src + offset,
> + count_left, 1, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + } else {
> + if ((src < dst) && (src + count_left > dst)) {
> + AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
> + " -> 0x%"PRIx64" (0x%"PRIx64")",
> + src, dst, count_left);
> + return -EINVAL;
> + }
> + tx_chunks = count_left / ctx->dma_buf_size;
> + offset = tx_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
> + " (%u...0x%"PRIx64")",
> + src, dst, tx_chunks, count_left);
> + tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
> + DMA_ALIGN_BYTES);
> + for (i = 0; i < tx_chunks; i++) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx,
> + dst + i * ctx->dma_buf_size,
> + (uint64_t)tmp_buf, ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + }
> +
> + if (count_left > 0) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + offset, count_left);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx, dst + offset,
> + (uint64_t)tmp_buf, count_left);
> + if (ret)
> + goto free_buf;
> + }
> +free_buf:
> + rte_free(tmp_buf);
> + }
> +
> + return ret;
> +}
> +
> +static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
> + uint64_t src, size_t count, fpga_dma_type type)
> +{
> + int ret = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (type == HOST_TO_FPGA)
> + ret = dma_host_to_fpga(ctx, dst, src, count);
> + else if (type == FPGA_TO_HOST)
> + ret = dma_fpga_to_host(ctx, dst, src, count);
> + else if (type == FPGA_TO_FPGA)
> + ret = dma_fpga_to_fpga(ctx, dst, src, count);
> + else
> + return -EINVAL;
> +
> + return ret;
> +}
> +
> +static double getTime(struct timespec start, struct timespec end)
> +{
> + uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
> + + end.tv_nsec - start.tv_nsec;
> + return (double)diff / (double)1000000000L;
> +}
> +
> +#define SWEEP_ITERS 1
> +static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
> + uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
> +{
> + struct timespec start, end;
> + uint64_t test_size = 0;
> + uint64_t *dma_buf_ptr = NULL;
> + double throughput, total_time = 0.0;
> + int i = 0;
> + int ret = 0;
> +
> + if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
> + AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
> + return -EINVAL;
> + }
> +
> + if (length < (buf_offset + size_decrement)) {
> + AFU_MF_PMD_ERR("Test length does not match unaligned
> parameter");
> + return -EINVAL;
> + }
> + test_size = length - (buf_offset + size_decrement);
> + if ((ddr_offset + test_size) > ctx->mem_size) {
> + AFU_MF_PMD_ERR("Test is out of DDR memory space");
> + return -EINVAL;
> + }
> +
> + dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
> + printf("Sweep Host %p to FPGA 0x%"PRIx64
> + " with 0x%"PRIx64" bytes ...\n",
> + (void *)dma_buf_ptr, ddr_offset, test_size);
> +
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, ddr_offset,
> (uint64_t)dma_buf_ptr,
> + test_size, HOST_TO_FPGA);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes
> ...\n",
> + ddr_offset, (void *)dma_buf_ptr, test_size);
> +
> + total_time = 0.0;
> + memset((char *)dma_buf_ptr, 0, test_size);
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr,
> ddr_offset,
> + test_size, FPGA_TO_HOST);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Verifying buffer ...\n");
> + return dma_afu_buf_verify(ctx, test_size);
> +}
> +
> +static int dma_afu_test(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_dma_cfg *cfg = NULL;
> + msgdma_ctrl ctrl;
> + uint64_t offset = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->dma_cfg;
> + if (cfg->index >= NUM_N3000_DMA)
> + return -EINVAL;
> + ctx = &priv->dma_ctx[cfg->index];
> +
> + ctx->pattern = (int)cfg->pattern;
> + ctx->verbose = (int)cfg->verbose;
> + ctx->dma_buf_size = cfg->size;
> +
> + ret = dma_afu_buf_alloc(ctx, cfg);
> + if (ret)
> + goto free;
> +
> + printf("Initialize test buffer\n");
> + dma_afu_buf_init(ctx, cfg->length);
> +
> + /* enable interrupt */
> + ctrl.csr = 0;
> + ctrl.global_intr_en_mask = 1;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> + printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
> + cfg->offset, cfg->length);
> + ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
> + cfg->length, HOST_TO_FPGA);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from host to
> FPGA");
> + goto end;
> + }
> + memset(ctx->data_buf, 0, cfg->length);
> +
> + printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
> + offset = cfg->offset + cfg->length;
> + else if (cfg->offset > cfg->length)
> + offset = 0;
> + else
> + goto end;
> +
> + printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
> + cfg->offset, offset, cfg->length);
> + ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
> + FPGA_TO_FPGA);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> FPGA");
> + goto end;
> + }
> +
> + printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + printf("Sweep with aligned address and size\n");
> + ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
> + if (ret)
> + goto end;
> +
> + if (cfg->unaligned) {
> + printf("Sweep with unaligned address and size\n");
> + struct unaligned_set {
> + uint64_t addr_offset;
> + uint64_t size_dec;
> + } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
> + for (i = 0; i < ARRAY_SIZE(param); i++) {
> + ret = sweep_test(ctx, cfg->length, cfg->offset,
> + param[i].addr_offset, param[i].size_dec);
> + if (ret)
> + break;
> + }
> + }
> +
> +end:
> + /* disable interrupt */
> + ctrl.global_intr_en_mask = 0;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> +free:
> + dma_afu_buf_free(ctx);
> + return ret;
> +}
> +
> +static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_mf_rawdev
> *dev)
> +{
> + struct rte_afu_device *afudev = NULL;
> +
> + if (!dev || !dev->rawdev || !dev->rawdev->device)
> + return NULL;
> +
> + afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
> + if (!afudev->rawdev || !afudev->rawdev->device)
> + return NULL;
> +
> + return RTE_DEV_TO_PCI(afudev->rawdev->device);
> +}
> +
> +#ifdef VFIO_PRESENT
> +static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t vec_start,
> + uint32_t count, int *efds)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + struct vfio_irq_set *irq_set = NULL;
> + int vfio_dev_fd = 0;
> + size_t sz = 0;
> + int ret = 0;
> +
> + if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
> + return -EINVAL;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return -ENODEV;
> + vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
> +
> + sz = sizeof(*irq_set) + sizeof(*efds) * count;
> + irq_set = rte_zmalloc(NULL, sz, 0);
> + if (!irq_set)
> + return -ENOMEM;
> +
> + irq_set->argsz = (uint32_t)sz;
> + irq_set->count = count;
> + irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
> + VFIO_IRQ_SET_ACTION_TRIGGER;
> + irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
> + irq_set->start = vec_start;
> +
> + rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
> + ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
> + if (ret)
> + AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
> +
> + rte_free(irq_set);
> + return ret;
> +}
> +#endif
> +
> +static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint32_t bar = 0;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return NULL;
> +
> + addr = (uint8_t *)pci_dev->mem_resource[0].addr;
> + val = rte_read64(addr + PORT_ATTR_REG(dev->port));
> + if (!PORT_IMPLEMENTED(val)) {
> + AFU_MF_PMD_INFO("FIU port %d is not implemented", dev-
> >port);
> + return NULL;
> + }
> +
> + bar = PORT_BAR(val);
> + if (bar >= PCI_MAX_RESOURCE) {
> + AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
> + return NULL;
> + }
> +
> + addr = (uint8_t *)pci_dev->mem_resource[bar].addr +
> PORT_OFFSET(val);
> + return addr;
> +}
> +
> +static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
> + uint32_t *vec_start, uint32_t *vec_count)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint64_t header = 0;
> + uint64_t next_offset = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
> + (DFH_FEATURE_ID(header) ==
> PORT_FEATURE_UINT_ID)) {
> + val = rte_read64(addr + PORT_UINT_CAP_REG);
> + if (vec_start)
> + *vec_start = PORT_VEC_START(val);
> + if (vec_count)
> + *vec_count = PORT_VEC_COUNT(val);
> + return 0;
> + }
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return -ENOENT;
> +}
> +
> +static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> + ctx->addr = addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
Suppose that If ctx->dest_ptr fail, the nlb_afu_ctx_release() will work correct?
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr +
> DSM_STATUS);
> + return 0;
> +
> +release:
> + nlb_afu_ctx_release(dev);
> + return ret;
> +}
> +
> +static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[0];
> +
> + rte_free(ctx->desc_buf);
> + ctx->desc_buf = NULL;
> +
> + rte_free(ctx->magic_buf);
> + ctx->magic_buf = NULL;
> +
> + close(ctx->event_fd);
> + return 0;
> +}
> +
> +static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t
> *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000,
> 0x1000000};
> + static int efds[1] = {0};
> + uint32_t vec_start = 0;
> + int ret = 0;
> +
> + if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[index];
> + ctx->index = index;
> + ctx->addr = addr;
> + ctx->csr_addr = addr + DMA_CSR;
> + ctx->desc_addr = addr + DMA_DESC;
> + ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
> + ctx->ase_data_addr = addr + DMA_ASE_DATA;
> + ctx->mem_size = mem_sz[ctx->index];
> + ctx->cur_ase_page = INVALID_ASE_PAGE;
> + if (ctx->index == 0) {
> + ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
> + if (ret)
> + return ret;
> +
> + efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
> + if (efds[0] < 0) {
> + AFU_MF_PMD_ERR("eventfd create failed");
> + return -EBADF;
> + }
> +#ifdef VFIO_PRESENT
> + if (dma_afu_set_irqs(dev, vec_start, 1, efds))
> + AFU_MF_PMD_ERR("DMA interrupt setup failed");
> +#endif
> + }
> + ctx->event_fd = efds[0];
> +
> + ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
> + sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
> + if (!ctx->desc_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->magic_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
Suppose that If ctx->magic_buf fail, the dma_afu_ctx_release () will work correct?
> + ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
> + if (ctx->magic_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + return 0;
> +
> +release:
> + dma_afu_ctx_release(dev);
> + return ret;
> +}
> +
> +static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + uint8_t *addr = NULL;
> + uint64_t header = 0;
> + uint64_t uuid_hi = 0;
> + uint64_t uuid_lo = 0;
> + uint64_t next_offset = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + addr = (uint8_t *)dev->addr;
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
> + uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
> +
> + if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
> + (uuid_lo == N3000_NLB0_UUID_L) &&
> + (uuid_hi == N3000_NLB0_UUID_H)) {
> + AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void
> *)addr);
> + ret = nlb_afu_ctx_init(dev, addr);
> + if (ret)
> + return ret;
> + } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
> + (uuid_lo == N3000_DMA_UUID_L) &&
> + (uuid_hi == N3000_DMA_UUID_H) &&
> + (priv->num_dma < NUM_N3000_DMA)) {
> + AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
> + priv->num_dma, (void *)addr);
> + ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
> + if (ret)
> + return ret;
> + priv->num_dma++;
> + } else {
> + AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
> + ", uuid %016"PRIx64"%016"PRIx64,
> + DFH_TYPE(header), uuid_hi, uuid_lo);
> + }
> +
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return 0;
> +}
> +
> +static int n3000_afu_init(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return n3000_afu_ctx_init(dev);
> +}
> +
> +static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_n3000_cfg *cfg = NULL;
> + int i = 0;
> + uint64_t top = 0;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_n3000_cfg *)config;
> + if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
> + if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
> + (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
> + return -EINVAL;
> + if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.multi_cl != 1) &&
> + (cfg->nlb_cfg.multi_cl != 2) &&
> + (cfg->nlb_cfg.multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
> + (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
> + (cfg->nlb_cfg.end > MAX_CACHE_LINES))
> + return -EINVAL;
> + rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
> + sizeof(struct rte_pmd_afu_nlb_cfg));
> + } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
> + if (cfg->dma_cfg.index >= NUM_N3000_DMA)
> + return -EINVAL;
> + i = cfg->dma_cfg.index;
> + if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
> + if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
> + return -EINVAL;
> + if (i == 3) { /* QDR connected to DMA3 */
> + if (cfg->dma_cfg.length & 0x3f) {
> + cfg->dma_cfg.length &= ~0x3f;
> + AFU_MF_PMD_INFO("Round size to %x for
> QDR",
> + cfg->dma_cfg.length);
> + }
> + }
> + rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
> + sizeof(struct rte_pmd_afu_dma_cfg));
> + } else {
> + AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
> + return -EINVAL;
> + }
> +
> + priv->cfg_type = cfg->type;
> + return 0;
> +}
> +
> +static int n3000_afu_test(struct afu_mf_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + AFU_MF_PMD_INFO("Test NLB");
> + ret = nlb_afu_test(dev);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
> + ret = dma_afu_test(dev);
> + } else {
> + AFU_MF_PMD_ERR("Please configure AFU before test");
> + ret = -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int n3000_afu_close(struct afu_mf_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + nlb_afu_ctx_release(dev);
> + dma_afu_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
> +{
> + struct n3000_afu_priv *priv = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + struct dma_afu_ctx *ctx = &priv->dma_ctx[priv-
> >dma_cfg.index];
> + fprintf(f, "index:\t\t%d\n", ctx->index);
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
> + fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
> + fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
> + fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
> + fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
> + fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
> + fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
> + } else {
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int n3000_afu_reset(struct afu_mf_rawdev *dev)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + val = rte_read64(addr + PORT_CTRL_REG);
> + val |= PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> + rte_delay_us(100);
> + val &= ~PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops n3000_afu_ops = {
> + .init = n3000_afu_init,
> + .config = n3000_afu_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = n3000_afu_test,
> + .close = n3000_afu_close,
> + .dump = n3000_afu_dump,
> + .reset = n3000_afu_reset
> +};
> +
> +struct afu_mf_drv n3000_afu_drv = {
> + .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> + .ops = &n3000_afu_ops
> +};
> diff --git a/drivers/raw/afu_mf/n3000_afu.h b/drivers/raw/afu_mf/n3000_afu.h
> new file mode 100644
> index 0000000..4c740da
> --- /dev/null
> +++ b/drivers/raw/afu_mf/n3000_afu.h
> @@ -0,0 +1,333 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _N3000_AFU_H_
> +#define _N3000_AFU_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define N3000_AFU_UUID_L 0xc000c9660d824272
> +#define N3000_AFU_UUID_H 0x9aeffe5f84570612
> +#define N3000_NLB0_UUID_L 0xf89e433683f9040b
> +#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
> +#define N3000_DMA_UUID_L 0xa9149a35bace01ea
> +#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
> +
> +extern struct afu_mf_drv n3000_afu_drv;
> +
> +#define NUM_N3000_DMA 4
> +#define MAX_MSIX_VEC 7
> +
> +/* N3000 DFL definition */
> +#define DFH_UUID_L_OFFSET 8
> +#define DFH_UUID_H_OFFSET 16
> +#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
> +#define DFH_TYPE_AFU 1
> +#define DFH_TYPE_BBB 2
> +#define DFH_TYPE_PRIVATE 3
> +#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
> +#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
> +#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
> +#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
> +#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
> +#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
> +#define PORT_OFFSET(attr) ((attr) & 0xffffff)
> +#define PORT_FEATURE_UINT_ID 0x12
> +#define PORT_UINT_CAP_REG 0x8
> +#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
> +#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
> +#define PORT_CTRL_REG 0x38
> +#define PORT_SOFT_RESET (0x1 << 0)
> +
> +/* NLB registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_STATUS 0x40
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct nlb_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct nlb_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t wrthru_en:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd1:1;
> + uint32_t delay_en:1;
> + uint32_t rdsel:2;
> + uint32_t rsvd2:1;
> + uint32_t chsel:3;
> + uint32_t rsvd3:1;
> + uint32_t wrpush_i:1;
> + uint32_t wr_chsel:3;
> + uint32_t rsvd4:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t wrfence_chsel:2;
> + };
> + };
> +};
> +
> +struct nlb_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct nlb_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct nlb_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +/* DMA registers definition */
> +#define DMA_CSR 0x40
> +#define DMA_DESC 0x60
> +#define DMA_ASE_CTRL 0x200
> +#define DMA_ASE_DATA 0x1000
> +
> +#define DMA_ASE_WINDOW 4096
> +#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
> +#define INVALID_ASE_PAGE 0xffffffffffffffffULL
> +
> +#define DMA_WF_MAGIC 0x5772745F53796E63ULL
> +#define DMA_WF_MAGIC_ROM 0x1000000000000
> +#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
> +#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
> +
> +#define NUM_DMA_BUF 8
> +#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
> +
> +#define DMA_MASK_32_BIT 0xFFFFFFFF
> +
> +#define DMA_CSR_BUSY 0x1
> +#define DMA_DESC_BUFFER_EMPTY 0x2
> +#define DMA_DESC_BUFFER_FULL 0x4
> +
> +#define DWORD_BYTES 4
> +#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
> +
> +#define QWORD_BYTES 8
> +#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
> +
> +#define DMA_ALIGN_BYTES 64
> +#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
> +
> +#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
> +
> +#define DMA_TIMEOUT_MSEC 5000
> +
> +#define MAGIC_BUF_SIZE 64
> +#define ERR_CHECK_LIMIT 64
> +
> +#ifndef MIN
> +#define MIN(a, b) ((a) < (b) ? (a) : (b))
> +#endif
> +
> +#ifndef ARRAY_SIZE
> +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
> +#endif
> +
> +typedef enum {
> + HOST_TO_FPGA = 0,
> + FPGA_TO_HOST,
> + FPGA_TO_FPGA,
> + FPGA_MAX_TRANSFER_TYPE,
> +} fpga_dma_type;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t tx_channel:8;
> + uint32_t generate_sop:1;
> + uint32_t generate_eop:1;
> + uint32_t park_reads:1;
> + uint32_t park_writes:1;
> + uint32_t end_on_eop:1;
> + uint32_t reserved_1:1;
> + uint32_t transfer_irq_en:1;
> + uint32_t early_term_irq_en:1;
> + uint32_t trans_error_irq_en:8;
> + uint32_t early_done_en:1;
> + uint32_t reserved_2:6;
> + uint32_t go:1;
> + };
> +} msgdma_desc_ctrl;
> +
> +typedef struct __rte_packed {
> + uint32_t rd_address;
> + uint32_t wr_address;
> + uint32_t len;
> + uint16_t seq_num;
> + uint8_t rd_burst_count;
> + uint8_t wr_burst_count;
> + uint16_t rd_stride;
> + uint16_t wr_stride;
> + uint32_t rd_address_ext;
> + uint32_t wr_address_ext;
> + msgdma_desc_ctrl control;
> +} msgdma_ext_desc;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t busy:1;
> + uint32_t desc_buf_empty:1;
> + uint32_t desc_buf_full:1;
> + uint32_t rsp_buf_empty:1;
> + uint32_t rsp_buf_full:1;
> + uint32_t stopped:1;
> + uint32_t resetting:1;
> + uint32_t stopped_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t irq:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_status;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t stop_dispatcher:1;
> + uint32_t reset_dispatcher:1;
> + uint32_t stop_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t global_intr_en_mask:1;
> + uint32_t stop_descriptors:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_ctrl;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_fill_level:16;
> + uint32_t wr_fill_level:16;
> + };
> +} msgdma_fill_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rsp_fill_level:16;
> + uint32_t reserved:16;
> + };
> +} msgdma_rsp_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_seq_num:16;
> + uint32_t wr_seq_num:16;
> + };
> +} msgdma_seq_num;
> +
> +typedef struct __rte_packed {
> + msgdma_status status;
> + msgdma_ctrl ctrl;
> + msgdma_fill_level fill_level;
> + msgdma_rsp_level rsp;
> + msgdma_seq_num seq_num;
> +} msgdma_csr;
> +
> +#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
> +#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
> +
> +struct nlb_afu_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct nlb_dsm_status *status_ptr;
> +};
> +
> +struct dma_afu_ctx {
> + int index;
> + uint8_t *addr;
> + uint8_t *csr_addr;
> + uint8_t *desc_addr;
> + uint8_t *ase_ctrl_addr;
> + uint8_t *ase_data_addr;
> + uint64_t mem_size;
> + uint64_t cur_ase_page;
> + int event_fd;
> + int verbose;
> + int pattern;
> + void *data_buf;
> + void *ref_buf;
> + msgdma_ext_desc *desc_buf;
> + uint64_t *magic_buf;
> + uint64_t magic_iova;
> + uint32_t dma_buf_size;
> + uint64_t *dma_buf[NUM_DMA_BUF];
> + uint64_t dma_iova[NUM_DMA_BUF];
> +};
> +
> +struct n3000_afu_priv {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + struct nlb_afu_ctx nlb_ctx;
> + struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
> + int num_dma;
> + int cfg_type;
> +};
> +
> +#endif /* _N3000_AFU_H_ */
> diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> b/drivers/raw/afu_mf/rte_pmd_afu.h
> new file mode 100644
> index 0000000..f14a053
> --- /dev/null
> +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> @@ -0,0 +1,97 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __RTE_PMD_AFU_H__
> +#define __RTE_PMD_AFU_H__
> +
> +/**
> + * @file rte_pmd_afu.h
> + *
> + * AFU PMD specific definitions.
> + *
> + * @b EXPERIMENTAL: this API may change, or be removed, without prior
> notice
> + *
> + */
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <stdint.h>
> +
> +#define RTE_PMD_AFU_N3000_NLB 1
> +#define RTE_PMD_AFU_N3000_DMA 2
> +
> +#define NLB_MODE_LPBK 0
> +#define NLB_MODE_READ 1
> +#define NLB_MODE_WRITE 2
> +#define NLB_MODE_TRPUT 3
> +
> +#define NLB_VC_AUTO 0
> +#define NLB_VC_VL0 1
> +#define NLB_VC_VH0 2
> +#define NLB_VC_VH1 3
> +#define NLB_VC_RANDOM 4
> +
> +#define NLB_WRLINE_M 0
> +#define NLB_WRLINE_I 1
> +#define NLB_WRPUSH_I 2
> +
> +#define NLB_RDLINE_S 0
> +#define NLB_RDLINE_I 1
> +#define NLB_RDLINE_MIXED 2
> +
> +#define MIN_CACHE_LINES 1
> +#define MAX_CACHE_LINES 1024
> +
> +#define MIN_DMA_BUF_SIZE 64
> +#define MAX_DMA_BUF_SIZE (1023 * 1024)
> +
> +/**
> + * NLB AFU configuration data structure.
> + */
> +struct rte_pmd_afu_nlb_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t cache_policy;
> + uint32_t cache_hint;
> + uint32_t read_vc;
> + uint32_t write_vc;
> + uint32_t wrfence_vc;
> + uint32_t freq_mhz;
> +};
> +
> +/**
> + * DMA AFU configuration data structure.
> + */
> +struct rte_pmd_afu_dma_cfg {
> + uint32_t index; /* index of DMA controller */
> + uint32_t length; /* total length of data to DMA */
> + uint32_t offset; /* address offset of target memory */
> + uint32_t size; /* size of transfer buffer */
> + uint32_t pattern; /* data pattern to fill in test buffer */
> + uint32_t unaligned; /* use unaligned address or length in sweep test */
> + uint32_t verbose; /* enable verbose error information in test */
> +};
> +
> +/**
> + * N3000 AFU configuration data structure.
> + */
> +struct rte_pmd_afu_n3000_cfg {
> + int type; /* RTE_PMD_AFU_N3000_NLB or
> RTE_PMD_AFU_N3000_DMA */
> + union {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + };
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* __RTE_PMD_AFU_H__ */
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver
2022-06-06 1:38 ` Zhang, Tianfei
@ 2022-06-07 2:40 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 2:40 UTC (permalink / raw)
To: Zhang, Tianfei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 09:39
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver
>
>
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Friday, May 27, 2022 1:37 PM
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> Wei
> > <wei.huang@intel.com>
> > Subject: [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver
> >
> > N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
> > and DMA is used to test local memory.
> > This driver initialize the modules and report test result.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > drivers/raw/afu_mf/afu_mf_rawdev.c | 4 +
> > drivers/raw/afu_mf/afu_mf_rawdev.h | 18 +
> > drivers/raw/afu_mf/meson.build | 4 +-
> > drivers/raw/afu_mf/n3000_afu.c | 2005
> > ++++++++++++++++++++++++++++++++++++
> > drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
> > drivers/raw/afu_mf/rte_pmd_afu.h | 97 ++
> > 6 files changed, 2460 insertions(+), 1 deletion(-)
> > create mode 100644 drivers/raw/afu_mf/n3000_afu.c
> > create mode 100644 drivers/raw/afu_mf/n3000_afu.h
> > create mode 100644 drivers/raw/afu_mf/rte_pmd_afu.h
> >
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > index 5be372a..7c18f3b 100644
> > --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > @@ -17,15 +17,19 @@
> > #include <rte_memzone.h>
> > #include <rte_rawdev_pmd.h>
> >
> > +#include "rte_pmd_afu.h"
> > #include "afu_mf_rawdev.h"
> > +#include "n3000_afu.h"
> >
> > #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> >
> > static const struct rte_afu_uuid afu_uuid_map[] = {
> > + { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> > { 0, 0 /* sentinel */ }
> > };
> >
> > static struct afu_mf_drv *afu_table[] = {
> > + &n3000_afu_drv,
> > NULL
> > };
> >
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.h
> > b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > index df6715c..5a66f6c 100644
> > --- a/drivers/raw/afu_mf/afu_mf_rawdev.h
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.h
> > @@ -30,6 +30,24 @@
> > #define AFU_MF_PMD_WARN(fmt, args...) \
> > AFU_MF_PMD_LOG(WARNING, fmt, ## args)
> >
> > +#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
> > +#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache
> lines */
> > +#define MHZ(f) ((f) * 1000000)
> > +
> > +#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
> > +({ \
> > + uint64_t __wait = 0; \
> > + uint64_t __invl = (invl); \
> > + uint64_t __timeout = (timeout); \
> > + for (; __wait <= __timeout; __wait += __invl) { \
> > + (val) = *(addr); \
> > + if (cond) \
> > + break; \
> > + rte_delay_ms(__invl); \
> > + } \
> > + (cond) ? 0 : 1; \
> > +})
>
> Dsm means DMA?
DSM means 'DMA Status Memory'
>
> > +
> > struct afu_mf_rawdev;
> >
> > struct afu_mf_ops {
> > diff --git a/drivers/raw/afu_mf/meson.build
> b/drivers/raw/afu_mf/meson.build
> > index 80526a2..8a989e3 100644
> > --- a/drivers/raw/afu_mf/meson.build
> > +++ b/drivers/raw/afu_mf/meson.build
> > @@ -2,4 +2,6 @@
> > # Copyright 2022 Intel Corporation
> >
> > deps += ['rawdev', 'bus_pci', 'bus_ifpga']
> > -sources = files('afu_mf_rawdev.c')
> > +sources = files('afu_mf_rawdev.c', 'n3000_afu.c')
> > +
> > +headers = files('rte_pmd_afu.h')
> > diff --git a/drivers/raw/afu_mf/n3000_afu.c
> b/drivers/raw/afu_mf/n3000_afu.c
> > new file mode 100644
> > index 0000000..19d7c54
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/n3000_afu.c
> > @@ -0,0 +1,2005 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation
> > + */
> > +
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <inttypes.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +#include <sys/ioctl.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memcpy.h>
> > +#include <rte_io.h>
> > +#include <rte_vfio.h>
> > +#include <rte_bus_pci.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "n3000_afu.h"
> > +
> > +static int nlb_afu_config(struct afu_mf_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> > + struct nlb_csr_cfg v;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + cfg = &priv->nlb_cfg;
> > +
> > + v.csr = 0;
> > +
> > + if (cfg->cont)
> > + v.cont = 1;
> > +
> > + if (cfg->cache_policy == NLB_WRPUSH_I)
> > + v.wrpush_i = 1;
> > + else
> > + v.wrthru_en = cfg->cache_policy;
> > +
> > + if (cfg->cache_hint == NLB_RDLINE_MIXED)
> > + v.rdsel = 3;
> > + else
> > + v.rdsel = cfg->cache_hint;
> > +
> > + v.mode = cfg->mode;
> > + v.chsel = cfg->read_vc;
> > + v.wr_chsel = cfg->write_vc;
> > + v.wrfence_chsel = cfg->wrfence_vc;
> > + v.wrthru_en = cfg->cache_policy;
> > + v.multicl_len = cfg->multi_cl - 1;
> > +
> > + AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
> > + rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
> > +
> > + return 0;
> > +}
> > +
> > +static void nlb_afu_report(struct afu_mf_rawdev *dev, uint32_t cl)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> > + struct nlb_dsm_status *stat = NULL;
> > + uint64_t ticks = 0;
> > + double num, rd_bw, wr_bw;
> > +
> > + if (!dev || !dev->priv)
> > + return;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > +
> > + cfg = &priv->nlb_cfg;
> > + stat = priv->nlb_ctx.status_ptr;
> > +
> > + if (cfg->cont)
> > + ticks = stat->num_clocks - stat->start_overhead;
> > + else
> > + ticks = stat->num_clocks -
> > + (stat->start_overhead + stat->end_overhead);
> > +
> > + if (cfg->freq_mhz == 0)
> > + cfg->freq_mhz = 200;
> > +
> > + num = (double)stat->num_reads;
> > + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> > + num = (double)stat->num_writes;
> > + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> > +
> > + printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
> > + "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
> > + printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
> > + cl, stat->num_reads, stat->num_writes, ticks,
> > + rd_bw / 1e9, wr_bw / 1e9);
> > +}
> > +
> > +static int nlb_afu_test(struct afu_mf_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct nlb_afu_ctx *ctx = NULL;
> > + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> > + struct nlb_csr_ctl ctl;
> > + uint32_t *ptr = NULL;
> > + uint32_t i, j, cl, val = 0;
> > + uint64_t sval = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + ctx = &priv->nlb_ctx;
> > + cfg = &priv->nlb_cfg;
> > +
> > + /* initialize registers */
> > + AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
> > + rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
> > +
> > + ctl.csr = 0;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + ctl.reset = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> > + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr +
> CSR_SRC_ADDR);
> > + AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> > + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr +
> CSR_DST_ADDR);
> > +
> > + ret = nlb_afu_config(dev);
> > + if (ret)
> > + return ret;
> > +
> > + /* initialize src data */
> > + ptr = (uint32_t *)ctx->src_ptr;
> > + j = CLS_TO_SIZE(cfg->end) >> 2;
> > + for (i = 0; i < j; i++)
> > + *ptr++ = i;
> > +
> > + /* start test */
> > + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> > + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> > + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> > +
> > + ctl.csr = 0;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + ctl.reset = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + rte_write32(cl, ctx->addr + CSR_NUM_LINES);
> > +
> > + rte_delay_us(10);
> > +
> > + ctl.start = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + if (cfg->cont) {
> > + rte_delay_ms(cfg->timeout * 1000);
> > + ctl.force_completion = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + ret = dsm_poll_timeout(&ctx->status_ptr-
> > >test_complete,
> > + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> > + DSM_TIMEOUT);
> > + if (ret) {
> > + printf("DSM poll timeout\n");
> > + goto end;
> > + }
> > + } else {
> > + ret = dsm_poll_timeout(&ctx->status_ptr-
> > >test_complete,
> > + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> > + DSM_TIMEOUT);
> > + if (ret) {
> > + printf("DSM poll timeout\n");
> > + goto end;
> > + }
> > + ctl.force_completion = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + }
> > +
> > + nlb_afu_report(dev, cl);
> > +
> > + i = 0;
> > + while (i++ < 100) {
> > + sval = rte_read64(ctx->addr + CSR_STATUS1);
> > + if (sval == 0)
> > + break;
> > + rte_delay_us(1000);
> > + }
> > +
> > + ptr = (uint32_t *)ctx->dest_ptr;
> > + j = CLS_TO_SIZE(cl) >> 2;
> > + for (i = 0; i < j; i++) {
> > + if (*ptr++ != i) {
> > + AFU_MF_PMD_ERR("Data mismatch @ %u",
> i);
> > + break;
> > + }
> > + }
> > + }
> > +
> > +end:
> > + return ret;
> > +}
> > +
> > +static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
> > +{
> > + int i = 0;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + for (i = 0; i < NUM_DMA_BUF; i++) {
> > + rte_free(ctx->dma_buf[i]);
> > + ctx->dma_buf[i] = NULL;
> > + }
> > +
> > + rte_free(ctx->data_buf);
> > + ctx->data_buf = NULL;
> > +
> > + rte_free(ctx->ref_buf);
> > + ctx->ref_buf = NULL;
> > +}
> > +
> > +static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
> > + struct rte_pmd_afu_dma_cfg *cfg)
> > +{
> > + size_t page_sz = sysconf(_SC_PAGE_SIZE);
> > + int i, ret = 0;
> > +
> > + if (!ctx || !cfg)
> > + return -EINVAL;
> > +
> > + for (i = 0; i < NUM_DMA_BUF; i++) {
> > + ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->dma_buf[i]) {
> > + ret = -ENOMEM;
> > + goto free;
> > + }
> > + ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
> > + if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto free;
> > + }
> > + }
> > +
> > + ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
> > + if (!ctx->data_buf) {
> > + ret = -ENOMEM;
> > + goto free;
> > + }
> > +
> > + ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
> > + if (!ctx->ref_buf) {
> > + ret = -ENOMEM;
> > + goto free;
> > + }
>
> Suppose that If ctx->ref_buf alloc fail, the dma_afu_buf_free() will work
> correct?
>
dma_afu_buf_free() can work correct in failure situation, but it's not standard exception handle, I will change it.
> > +
> > + return 0;
> > +
> > +free:
> > + dma_afu_buf_free(ctx);
> > + return ret;
> > +}
> > +
> > +static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
> > +{
> > + int *ptr = NULL;
> > + size_t i = 0;
> > + size_t dword_size = 0;
> > +
> > + if (!ctx || !size)
> > + return;
> > +
> > + ptr = (int *)ctx->ref_buf;
> > +
> > + if (ctx->pattern) {
> > + memset(ptr, ctx->pattern, size);
> > + } else {
> > + srand(99);
> > + dword_size = size >> 2;
> > + for (i = 0; i < dword_size; i++)
> > + *ptr++ = rand();
> > + }
> > + rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
> > +}
> > +
> > +static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
> > +{
> > + uint8_t *src = NULL;
> > + uint8_t *dst = NULL;
> > + size_t i = 0;
> > + int n = 0;
> > +
> > + if (!ctx || !size)
> > + return -EINVAL;
> > +
> > + src = (uint8_t *)ctx->ref_buf;
> > + dst = (uint8_t *)ctx->data_buf;
> > +
> > + if (memcmp(src, dst, size)) {
> > + printf("Transfer is corrupted\n");
> > + if (ctx->verbose) {
> > + for (i = 0; i < size; i++) {
> > + if (*src != *dst) {
> > + if (++n >= ERR_CHECK_LIMIT)
> > + break;
> > + printf("Mismatch at 0x%zx, "
> > + "Expected %02x Actual
> > %02x\n",
> > + i, *src, *dst);
> > + }
> > + src++;
> > + dst++;
> > + }
> > + if (n < ERR_CHECK_LIMIT) {
> > + printf("Found %d error bytes\n", n);
> > + } else {
> > + printf("......\n");
> > + printf("Found more than %d error bytes\n",
> n);
> > + }
> > + }
> > + return -1;
> > + }
> > +
> > + printf("Transfer is verified\n");
> > + return 0;
> > +}
> > +
> > +static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr,
> uint64_t
> > bytes)
> > +{
> > + uint64_t qwords = bytes / sizeof(uint64_t);
> > +
> > + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> > + !IS_ALIGNED_QWORD((uint64_t)bytes))
> > + return;
> > +
> > + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> > + rte_write64(*host_addr, dev_addr);
> > +}
> > +
> > +static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> > bytes)
> > +{
> > + uint64_t qwords = bytes / sizeof(uint64_t);
> > +
> > + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> > + !IS_ALIGNED_QWORD((uint64_t)bytes))
> > + return;
> > +
> > + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> > + *host_addr = rte_read64(dev_addr);
> > +}
> > +
> > +static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
> > +{
> > + uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + if (requested_page != ctx->cur_ase_page) {
> > + rte_write64(requested_page, ctx->ase_ctrl_addr);
> > + ctx->cur_ase_page = requested_page;
> > + }
> > +}
> > +
> > +static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t
> dev_addr,
> > + uint64_t host_addr, uint32_t count)
> > +{
> > + uint64_t dev_aligned_addr = 0;
> > + uint64_t shift = 0;
> > + uint64_t val = 0;
> > + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)",
> > host_addr,
> > + dev_addr, count);
> > +
> > + if (!ctx || (count >= QWORD_BYTES))
> > + return -EINVAL;
> > +
> > + if (!count)
> > + return 0;
> > +
> > + switch_ase_page(ctx, dev_addr);
> > +
> > + shift = dev_addr % QWORD_BYTES;
> > + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> > + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> > + rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
> > +
> > + /* write back to device */
> > + rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> > + uint64_t *src_ptr, uint64_t *count)
> > +{
> > + uint64_t src = *src_ptr;
> > + uint64_t dst = *dst_ptr;
> > + uint64_t align_bytes = *count;
> > + uint64_t offset = 0;
> > + uint64_t left_in_page = DMA_ASE_WINDOW;
> > + uint64_t size_to_copy = 0;
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")",
> > src, dst,
> > + align_bytes);
> > +
> > + if (!ctx || !IS_ALIGNED_DWORD(dst))
> > + return -EINVAL;
> > +
> > + if (align_bytes < DWORD_BYTES)
> > + return 0;
> > +
> > + if (!IS_ALIGNED_QWORD(dst)) {
> > + /* Write out a single DWORD to get QWORD aligned */
> > + switch_ase_page(ctx, dst);
> > + offset = dst & DMA_ASE_WINDOW_MASK;
> > +
> > + rte_write32(*(uint32_t *)(uintptr_t)src,
> > + ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + if (!align_bytes)
> > + return 0;
> > +
> > + /* Write out blocks of 64-bit values */
> > + while (align_bytes >= QWORD_BYTES) {
> > + left_in_page -= dst & DMA_ASE_WINDOW_MASK;
> > + size_to_copy =
> > + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> > 1)));
> > + if (size_to_copy < QWORD_BYTES)
> > + break;
> > + switch_ase_page(ctx, dst);
> > + offset = dst & DMA_ASE_WINDOW_MASK;
> > + blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
> > + (uint64_t *)(uintptr_t)src, size_to_copy);
> > + src += size_to_copy;
> > + dst += size_to_copy;
> > + align_bytes -= size_to_copy;
> > + }
> > +
> > + if (align_bytes >= DWORD_BYTES) {
> > + /* Write out remaining DWORD */
> > + switch_ase_page(ctx, dst);
> > + offset = dst & DMA_ASE_WINDOW_MASK;
> > + rte_write32(*(uint32_t *)(uintptr_t)src,
> > + ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + *src_ptr = src;
> > + *dst_ptr = dst;
> > + *count = align_bytes;
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> > + uint64_t *src_ptr, uint64_t count)
> > +{
> > + uint64_t dst = *dst_ptr;
> > + uint64_t src = *src_ptr;
> > + uint64_t count_left = count;
> > + uint64_t unaligned_size = 0;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")",
> > src, dst,
> > + count);
> > +
> > + /* aligns address to 8 byte using dst masking method */
> > + if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
> > + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> > + if (ret)
> > + return ret;
> > + count_left -= unaligned_size;
> > + src += unaligned_size;
> > + dst += unaligned_size;
> > + }
> > +
> > + /* Handles 8/4 byte MMIO transfer */
> > + ret = ase_write(ctx, &dst, &src, &count_left);
> > + if (ret)
> > + return ret;
> > +
> > + /* Left over unaligned bytes transferred using dst masking method
> */
> > + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > +
> > + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> > + if (ret)
> > + return ret;
> > +
> > + count_left -= unaligned_size;
> > + *dst_ptr = dst + unaligned_size;
> > + *src_ptr = src + unaligned_size;
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t
> dev_addr,
> > + uint64_t host_addr, uint32_t count)
> > +{
> > + uint64_t dev_aligned_addr = 0;
> > + uint64_t shift = 0;
> > + uint64_t val = 0;
> > + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)",
> > host_addr,
> > + dev_addr, count);
> > +
> > + if (!ctx || (count >= QWORD_BYTES))
> > + return -EINVAL;
> > +
> > + if (!count)
> > + return 0;
> > +
> > + switch_ase_page(ctx, dev_addr);
> > +
> > + shift = dev_addr % QWORD_BYTES;
> > + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> > + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> > + rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> > + uint64_t *dst_ptr, uint64_t *count)
> > +{
> > + uint64_t src = *src_ptr;
> > + uint64_t dst = *dst_ptr;
> > + uint64_t align_bytes = *count;
> > + uint64_t offset = 0;
> > + uint64_t left_in_page = DMA_ASE_WINDOW;
> > + uint64_t size_to_copy = 0;
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64"
> (0x%"PRIx64")",
> > dst, src,
> > + align_bytes);
> > +
> > + if (!ctx || !IS_ALIGNED_DWORD(src))
> > + return -EINVAL;
> > +
> > + if (align_bytes < DWORD_BYTES)
> > + return 0;
> > +
> > + if (!IS_ALIGNED_QWORD(src)) {
> > + /* Read a single DWORD to get QWORD aligned */
> > + switch_ase_page(ctx, src);
> > + offset = src & DMA_ASE_WINDOW_MASK;
> > + *(uint32_t *)(uintptr_t)dst =
> > + rte_read32(ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + if (!align_bytes)
> > + return 0;
> > +
> > + /* Read blocks of 64-bit values */
> > + while (align_bytes >= QWORD_BYTES) {
> > + left_in_page -= src & DMA_ASE_WINDOW_MASK;
> > + size_to_copy =
> > + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> > 1)));
> > + if (size_to_copy < QWORD_BYTES)
> > + break;
> > + switch_ase_page(ctx, src);
> > + offset = src & DMA_ASE_WINDOW_MASK;
> > + blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
> > + (uint64_t *)(uintptr_t)dst, size_to_copy);
> > + src += size_to_copy;
> > + dst += size_to_copy;
> > + align_bytes -= size_to_copy;
> > + }
> > +
> > + if (align_bytes >= DWORD_BYTES) {
> > + /* Read remaining DWORD */
> > + switch_ase_page(ctx, src);
> > + offset = src & DMA_ASE_WINDOW_MASK;
> > + *(uint32_t *)(uintptr_t)dst =
> > + rte_read32(ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + *src_ptr = src;
> > + *dst_ptr = dst;
> > + *count = align_bytes;
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> > + uint64_t *dst_ptr, uint64_t count)
> > +{
> > + uint64_t src = *src_ptr;
> > + uint64_t dst = *dst_ptr;
> > + uint64_t count_left = count;
> > + uint64_t unaligned_size = 0;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")",
> > src, dst,
> > + count);
> > +
> > + /* Aligns address to 8 byte using src masking method */
> > + if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
> > + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> > + if (ret)
> > + return ret;
> > + count_left -= unaligned_size;
> > + dst += unaligned_size;
> > + src += unaligned_size;
> > + }
> > +
> > + /* Handles 8/4 byte MMIO transfer */
> > + ret = ase_read(ctx, &src, &dst, &count_left);
> > + if (ret)
> > + return ret;
> > +
> > + /* Left over unaligned bytes transferred using src masking method */
> > + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > +
> > + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> > + if (ret)
> > + return ret;
> > +
> > + count_left -= unaligned_size;
> > + *dst_ptr = dst + unaligned_size;
> > + *src_ptr = src + unaligned_size;
> > +
> > + return 0;
> > +}
> > +
> > +static void clear_interrupt(struct dma_afu_ctx *ctx)
> > +{
> > + /* clear interrupt by writing 1 to IRQ bit in status register */
> > + msgdma_status status;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + status.csr = 0;
> > + status.irq = 1;
> > + rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
> > +}
> > +
> > +static int poll_interrupt(struct dma_afu_ctx *ctx)
> > +{
> > + struct pollfd pfd = {0};
> > + uint64_t count = 0;
> > + ssize_t bytes_read = 0;
> > + int poll_ret = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || (ctx->event_fd < 0))
> > + return -EINVAL;
> > +
> > + pfd.fd = ctx->event_fd;
> > + pfd.events = POLLIN;
> > + poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
> > + if (poll_ret < 0) {
> > + AFU_MF_PMD_ERR("Error %s", strerror(errno));
> > + ret = -EFAULT;
> > + goto out;
> > + } else if (poll_ret == 0) {
> > + AFU_MF_PMD_ERR("Timeout");
> > + ret = -ETIMEDOUT;
> > + } else {
> > + bytes_read = read(pfd.fd, &count, sizeof(count));
> > + if (bytes_read > 0) {
> > + if (ctx->verbose)
> > + AFU_MF_PMD_DEBUG("Successful, ret %d,
> cnt
> > %"PRIu64,
> > + poll_ret, count);
> > + ret = 0;
> > + } else {
> > + AFU_MF_PMD_ERR("Failed %s", bytes_read > 0 ?
> > + strerror(errno) : "zero bytes read");
> > + ret = -EIO;
> > + }
> > + }
> > +out:
> > + clear_interrupt(ctx);
> > + return ret;
> > +}
> > +
> > +static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc
> *desc)
> > +{
> > + msgdma_status status;
> > + uint64_t fpga_queue_full = 0;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + if (ctx->verbose) {
> > + AFU_MF_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
> > + desc->rd_address_ext, desc->rd_address);
> > + AFU_MF_PMD_DEBUG("descriptor.wr_address =
> 0x%x%08x",
> > + desc->wr_address_ext, desc->wr_address);
> > + AFU_MF_PMD_DEBUG("descriptor.len = %u", desc->len);
> > + AFU_MF_PMD_DEBUG("descriptor.wr_burst_count = %u",
> > + desc->wr_burst_count);
> > + AFU_MF_PMD_DEBUG("descriptor.rd_burst_count = %u",
> > + desc->rd_burst_count);
> > + AFU_MF_PMD_DEBUG("descriptor.wr_stride %u", desc-
> > >wr_stride);
> > + AFU_MF_PMD_DEBUG("descriptor.rd_stride %u", desc-
> > >rd_stride);
> > + }
> > +
> > + do {
> > + status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
> > + if (fpga_queue_full++ > 100000000) {
> > + AFU_MF_PMD_DEBUG("DMA queue full retry");
> > + fpga_queue_full = 0;
> > + }
> > + } while (status.desc_buf_full);
> > +
> > + blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
> > + sizeof(*desc));
> > +}
> > +
> > +static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> > + int count, int is_last_desc, fpga_dma_type type, int intr_en)
> > +{
> > + msgdma_ext_desc *desc = NULL;
> > + int alignment_offset = 0;
> > + int segment_size = 0;
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + /* src, dst and count must be 64-byte aligned */
> > + if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
> > + !IS_DMA_ALIGNED(count))
> > + return -EINVAL;
> > + memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
> > +
> > + /* these fields are fixed for all DMA transfers */
> > + desc = ctx->desc_buf;
> > + desc->seq_num = 0;
> > + desc->wr_stride = 1;
> > + desc->rd_stride = 1;
> > + desc->control.go = 1;
> > + if (intr_en)
> > + desc->control.transfer_irq_en = 1;
> > + else
> > + desc->control.transfer_irq_en = 0;
> > +
> > + if (!is_last_desc)
> > + desc->control.early_done_en = 1;
> > + else
> > + desc->control.early_done_en = 0;
> > +
> > + if (type == FPGA_TO_FPGA) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->len = count;
> > + desc->wr_burst_count = 4;
> > + desc->rd_burst_count = 4;
> > + desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
> > + send_descriptor(ctx, desc);
> > + } else {
> > + /* check CCIP (host) address is aligned to 4CL (256B) */
> > + alignment_offset = (type == HOST_TO_FPGA)
> > + ? (src % CCIP_ALIGN_BYTES) : (dst %
> > CCIP_ALIGN_BYTES);
> > + /* performing a short transfer to get aligned */
> > + if (alignment_offset != 0) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->wr_burst_count = 1;
> > + desc->rd_burst_count = 1;
> > + desc->rd_address_ext = (src >> 32) &
> > DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) &
> > DMA_MASK_32_BIT;
> > + /* count isn't large enough to hit next 4CL boundary
> */
> > + if ((CCIP_ALIGN_BYTES - alignment_offset) >= count)
> {
> > + segment_size = count;
> > + count = 0;
> > + } else {
> > + segment_size = CCIP_ALIGN_BYTES
> > + - alignment_offset;
> > + src += segment_size;
> > + dst += segment_size;
> > + count -= segment_size;
> > + desc->control.transfer_irq_en = 0;
> > + }
> > + /* post short transfer to align to a 4CL (256 byte) */
> > + desc->len = segment_size;
> > + send_descriptor(ctx, desc);
> > + }
> > + /* at this point we are 4CL (256 byte) aligned */
> > + if (count >= CCIP_ALIGN_BYTES) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->wr_burst_count = 4;
> > + desc->rd_burst_count = 4;
> > + desc->rd_address_ext = (src >> 32) &
> > DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) &
> > DMA_MASK_32_BIT;
> > + /* buffer ends on 4CL boundary */
> > + if ((count % CCIP_ALIGN_BYTES) == 0) {
> > + segment_size = count;
> > + count = 0;
> > + } else {
> > + segment_size = count
> > + - (count % CCIP_ALIGN_BYTES);
> > + src += segment_size;
> > + dst += segment_size;
> > + count -= segment_size;
> > + desc->control.transfer_irq_en = 0;
> > + }
> > + desc->len = segment_size;
> > + send_descriptor(ctx, desc);
> > + }
> > + /* post short transfer to handle the remainder */
> > + if (count > 0) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->len = count;
> > + desc->wr_burst_count = 1;
> > + desc->rd_burst_count = 1;
> > + desc->rd_address_ext = (src >> 32) &
> > DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) &
> > DMA_MASK_32_BIT;
> > + if (intr_en)
> > + desc->control.transfer_irq_en = 1;
> > + send_descriptor(ctx, desc);
> > + }
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int issue_magic(struct dma_afu_ctx *ctx)
> > +{
> > + *(ctx->magic_buf) = 0ULL;
> > + return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
> > + DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
> > +}
> > +
> > +static void wait_magic(struct dma_afu_ctx *ctx)
> > +{
> > + int magic_timeout = 0;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + poll_interrupt(ctx);
> > + while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
> > + if (magic_timeout++ > 1000) {
> > + AFU_MF_PMD_ERR("DMA magic operation
> timeout");
> > + magic_timeout = 0;
> > + break;
> > + }
> > + }
> > + *(ctx->magic_buf) = 0ULL;
> > +}
> > +
> > +static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> > + uint64_t chunk, int is_last_chunk, int *intr_issued)
> > +{
> > + int intr_en = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || !intr_issued)
> > + return -EINVAL;
> > +
> > + src += chunk * ctx->dma_buf_size;
> > + dst += chunk * ctx->dma_buf_size;
> > +
> > + if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) ||
> > is_last_chunk) {
> > + if (*intr_issued) {
> > + ret = poll_interrupt(ctx);
> > + if (ret)
> > + return ret;
> > + }
> > + intr_en = 1;
> > + }
> > +
> > + chunk %= NUM_DMA_BUF;
> > + rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
> > + ctx->dma_buf_size);
> > + ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
> > + ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
> > + if (intr_en)
> > + *intr_issued = 1;
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t
> > src,
> > + size_t count)
> > +{
> > + uint64_t i = 0;
> > + uint64_t count_left = count;
> > + uint64_t aligned_addr = 0;
> > + uint64_t align_bytes = 0;
> > + uint64_t dma_chunks = 0;
> > + uint64_t dma_tx_bytes = 0;
> > + uint64_t offset = 0;
> > + int issued_intr = 0;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src,
> dst,
> > + count);
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (!IS_DMA_ALIGNED(dst)) {
> > + if (count_left < DMA_ALIGN_BYTES)
> > + return ase_host_to_fpga(ctx, &dst, &src, count_left);
> > +
> > + aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
> > + * DMA_ALIGN_BYTES;
> > + align_bytes = aligned_addr - dst;
> > + ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
> > + if (ret)
> > + return ret;
> > + count_left = count_left - align_bytes;
> > + }
> > +
> > + if (count_left) {
> > + dma_chunks = count_left / ctx->dma_buf_size;
> > + offset = dma_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> > + " (%"PRIu64"...0x%"PRIx64")",
> > + src, dst, dma_chunks, count_left);
> > + for (i = 0; i < dma_chunks; i++) {
> > + ret = dma_tx_buf(ctx, dst, src, i,
> > + i == (dma_chunks - 1), &issued_intr);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (issued_intr) {
> > + ret = poll_interrupt(ctx);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (count_left) {
> > + i = count_left / DMA_ALIGN_BYTES;
> > + if (i > 0) {
> > + dma_tx_bytes = i * DMA_ALIGN_BYTES;
> > + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64"
> > to DMA",
> > + dma_tx_bytes);
> > + rte_memcpy(ctx->dma_buf[0],
> > + (void *)(uintptr_t)(src + offset),
> > + dma_tx_bytes);
> > + ret = do_dma(ctx, dst + offset,
> > + DMA_HOST_ADDR(ctx-
> >dma_iova[0]),
> > + dma_tx_bytes, 1, HOST_TO_FPGA, 1);
> > + if (ret)
> > + return ret;
> > + ret = poll_interrupt(ctx);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + count_left -= dma_tx_bytes;
> > + if (count_left) {
> > + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64"
> > to ASE",
> > + count_left);
> > + dst += offset + dma_tx_bytes;
> > + src += offset + dma_tx_bytes;
> > + ret = ase_host_to_fpga(ctx, &dst, &src,
> > + count_left);
> > + }
> > + }
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> > + uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
> > +{
> > + uint64_t i = chunk % NUM_DMA_BUF;
> > + uint64_t n = *rx_count;
> > + uint64_t num_pending = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || !wf_issued)
> > + return -EINVAL;
> > +
> > + ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
> > + src + chunk * ctx->dma_buf_size,
> > + ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
> > + if (ret)
> > + return ret;
> > +
> > + num_pending = chunk - n + 1;
> > + if (num_pending == HALF_DMA_BUF) {
> > + ret = issue_magic(ctx);
> > + if (ret) {
> > + AFU_MF_PMD_DEBUG("Magic issue failed");
> > + return ret;
> > + }
> > + *wf_issued = 1;
> > + }
> > +
> > + if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
> > + if (*wf_issued) {
> > + wait_magic(ctx);
> > + for (i = 0; i < HALF_DMA_BUF; i++) {
> > + rte_memcpy((void *)(uintptr_t)(dst +
> > + n * ctx->dma_buf_size),
> > + ctx->dma_buf[n % NUM_DMA_BUF],
> > + ctx->dma_buf_size);
> > + n++;
> > + }
> > + *wf_issued = 0;
> > + *rx_count = n;
> > + }
> > + ret = issue_magic(ctx);
> > + if (ret) {
> > + AFU_MF_PMD_DEBUG("Magic issue failed");
> > + return ret;
> > + }
> > + *wf_issued = 1;
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t
> > src,
> > + size_t count)
> > +{
> > + uint64_t i = 0;
> > + uint64_t count_left = count;
> > + uint64_t aligned_addr = 0;
> > + uint64_t align_bytes = 0;
> > + uint64_t dma_chunks = 0;
> > + uint64_t pending_buf = 0;
> > + uint64_t dma_rx_bytes = 0;
> > + uint64_t offset = 0;
> > + int wf_issued = 0;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src,
> dst,
> > + count);
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (!IS_DMA_ALIGNED(src)) {
> > + if (count_left < DMA_ALIGN_BYTES)
> > + return ase_fpga_to_host(ctx, &src, &dst, count_left);
> > +
> > + aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
> > + * DMA_ALIGN_BYTES;
> > + align_bytes = aligned_addr - src;
> > + ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
> > + if (ret)
> > + return ret;
> > + count_left = count_left - align_bytes;
> > + }
> > +
> > + if (count_left) {
> > + dma_chunks = count_left / ctx->dma_buf_size;
> > + offset = dma_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> > + " (%"PRIu64"...0x%"PRIx64")",
> > + src, dst, dma_chunks, count_left);
> > + for (i = 0; i < dma_chunks; i++) {
> > + ret = dma_rx_buf(ctx, dst, src, i,
> > + i == (dma_chunks - 1),
> > + &pending_buf, &wf_issued);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (wf_issued)
> > + wait_magic(ctx);
> > +
> > + /* clear out final dma memcpy operations */
> > + while (pending_buf < dma_chunks) {
> > + /* constant size transfer; no length check required */
> > + rte_memcpy((void *)(uintptr_t)(dst +
> > + pending_buf * ctx->dma_buf_size),
> > + ctx->dma_buf[pending_buf %
> > NUM_DMA_BUF],
> > + ctx->dma_buf_size);
> > + pending_buf++;
> > + }
> > +
> > + if (count_left > 0) {
> > + i = count_left / DMA_ALIGN_BYTES;
> > + if (i > 0) {
> > + dma_rx_bytes = i * DMA_ALIGN_BYTES;
> > + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64"
> > to DMA",
> > + dma_rx_bytes);
> > + ret = do_dma(ctx,
> > + DMA_HOST_ADDR(ctx-
> >dma_iova[0]),
> > + src + offset,
> > + dma_rx_bytes, 1, FPGA_TO_HOST, 0);
> > + if (ret)
> > + return ret;
> > + ret = issue_magic(ctx);
> > + if (ret)
> > + return ret;
> > + wait_magic(ctx);
> > + rte_memcpy((void *)(uintptr_t)(dst + offset),
> > + ctx->dma_buf[0], dma_rx_bytes);
> > + }
> > +
> > + count_left -= dma_rx_bytes;
> > + if (count_left) {
> > + AFU_MF_PMD_DEBUG("left over
> 0x%"PRIx64"
> > to ASE",
> > + count_left);
> > + dst += offset + dma_rx_bytes;
> > + src += offset + dma_rx_bytes;
> > + ret = ase_fpga_to_host(ctx, &src, &dst,
> > + count_left);
> > + }
> > + }
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t
> > src,
> > + size_t count)
> > +{
> > + uint64_t i = 0;
> > + uint64_t count_left = count;
> > + uint64_t dma_chunks = 0;
> > + uint64_t offset = 0;
> > + uint32_t tx_chunks = 0;
> > + uint64_t *tmp_buf = NULL;
> > + int ret = 0;
> > +
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src,
> dst,
> > + count);
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
> > + && IS_DMA_ALIGNED(count_left)) {
> > + dma_chunks = count_left / ctx->dma_buf_size;
> > + offset = dma_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> > + " (%"PRIu64"...0x%"PRIx64")",
> > + src, dst, dma_chunks, count_left);
> > + for (i = 0; i < dma_chunks; i++) {
> > + ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
> > + src + i * ctx->dma_buf_size,
> > + ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
> > + if (ret)
> > + return ret;
> > + if ((((i + 1) % NUM_DMA_BUF) == 0) ||
> > + (i == (dma_chunks - 1))) {
> > + ret = issue_magic(ctx);
> > + if (ret)
> > + return ret;
> > + wait_magic(ctx);
> > + }
> > + }
> > +
> > + if (count_left > 0) {
> > + AFU_MF_PMD_DEBUG("left over 0x%"PRIx64" to
> > DMA", count_left);
> > + ret = do_dma(ctx, dst + offset, src + offset,
> > + count_left, 1, FPGA_TO_FPGA, 0);
> > + if (ret)
> > + return ret;
> > + ret = issue_magic(ctx);
> > + if (ret)
> > + return ret;
> > + wait_magic(ctx);
> > + }
> > + } else {
> > + if ((src < dst) && (src + count_left > dst)) {
> > + AFU_MF_PMD_ERR("Overlapping: 0x%"PRIx64
> > + " -> 0x%"PRIx64" (0x%"PRIx64")",
> > + src, dst, count_left);
> > + return -EINVAL;
> > + }
> > + tx_chunks = count_left / ctx->dma_buf_size;
> > + offset = tx_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + AFU_MF_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
> > + " (%u...0x%"PRIx64")",
> > + src, dst, tx_chunks, count_left);
> > + tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
> > + DMA_ALIGN_BYTES);
> > + for (i = 0; i < tx_chunks; i++) {
> > + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> > + src + i * ctx->dma_buf_size,
> > + ctx->dma_buf_size);
> > + if (ret)
> > + goto free_buf;
> > + ret = dma_host_to_fpga(ctx,
> > + dst + i * ctx->dma_buf_size,
> > + (uint64_t)tmp_buf, ctx->dma_buf_size);
> > + if (ret)
> > + goto free_buf;
> > + }
> > +
> > + if (count_left > 0) {
> > + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> > + src + offset, count_left);
> > + if (ret)
> > + goto free_buf;
> > + ret = dma_host_to_fpga(ctx, dst + offset,
> > + (uint64_t)tmp_buf, count_left);
> > + if (ret)
> > + goto free_buf;
> > + }
> > +free_buf:
> > + rte_free(tmp_buf);
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
> > + uint64_t src, size_t count, fpga_dma_type type)
> > +{
> > + int ret = 0;
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (type == HOST_TO_FPGA)
> > + ret = dma_host_to_fpga(ctx, dst, src, count);
> > + else if (type == FPGA_TO_HOST)
> > + ret = dma_fpga_to_host(ctx, dst, src, count);
> > + else if (type == FPGA_TO_FPGA)
> > + ret = dma_fpga_to_fpga(ctx, dst, src, count);
> > + else
> > + return -EINVAL;
> > +
> > + return ret;
> > +}
> > +
> > +static double getTime(struct timespec start, struct timespec end)
> > +{
> > + uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
> > + + end.tv_nsec - start.tv_nsec;
> > + return (double)diff / (double)1000000000L;
> > +}
> > +
> > +#define SWEEP_ITERS 1
> > +static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
> > + uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
> > +{
> > + struct timespec start, end;
> > + uint64_t test_size = 0;
> > + uint64_t *dma_buf_ptr = NULL;
> > + double throughput, total_time = 0.0;
> > + int i = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
> > + AFU_MF_PMD_ERR("Buffer for DMA test is not allocated");
> > + return -EINVAL;
> > + }
> > +
> > + if (length < (buf_offset + size_decrement)) {
> > + AFU_MF_PMD_ERR("Test length does not match unaligned
> > parameter");
> > + return -EINVAL;
> > + }
> > + test_size = length - (buf_offset + size_decrement);
> > + if ((ddr_offset + test_size) > ctx->mem_size) {
> > + AFU_MF_PMD_ERR("Test is out of DDR memory space");
> > + return -EINVAL;
> > + }
> > +
> > + dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
> > + printf("Sweep Host %p to FPGA 0x%"PRIx64
> > + " with 0x%"PRIx64" bytes ...\n",
> > + (void *)dma_buf_ptr, ddr_offset, test_size);
> > +
> > + for (i = 0; i < SWEEP_ITERS; i++) {
> > + clock_gettime(CLOCK_MONOTONIC, &start);
> > + ret = dma_transfer_sync(ctx, ddr_offset,
> > (uint64_t)dma_buf_ptr,
> > + test_size, HOST_TO_FPGA);
> > + clock_gettime(CLOCK_MONOTONIC, &end);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed");
> > + return ret;
> > + }
> > + total_time += getTime(start, end);
> > + }
> > + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> > + printf("Measured bandwidth = %lf MB/s\n", throughput);
> > +
> > + printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes
> > ...\n",
> > + ddr_offset, (void *)dma_buf_ptr, test_size);
> > +
> > + total_time = 0.0;
> > + memset((char *)dma_buf_ptr, 0, test_size);
> > + for (i = 0; i < SWEEP_ITERS; i++) {
> > + clock_gettime(CLOCK_MONOTONIC, &start);
> > + ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr,
> > ddr_offset,
> > + test_size, FPGA_TO_HOST);
> > + clock_gettime(CLOCK_MONOTONIC, &end);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed");
> > + return ret;
> > + }
> > + total_time += getTime(start, end);
> > + }
> > + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> > + printf("Measured bandwidth = %lf MB/s\n", throughput);
> > +
> > + printf("Verifying buffer ...\n");
> > + return dma_afu_buf_verify(ctx, test_size);
> > +}
> > +
> > +static int dma_afu_test(struct afu_mf_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct dma_afu_ctx *ctx = NULL;
> > + struct rte_pmd_afu_dma_cfg *cfg = NULL;
> > + msgdma_ctrl ctrl;
> > + uint64_t offset = 0;
> > + uint32_t i = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + cfg = &priv->dma_cfg;
> > + if (cfg->index >= NUM_N3000_DMA)
> > + return -EINVAL;
> > + ctx = &priv->dma_ctx[cfg->index];
> > +
> > + ctx->pattern = (int)cfg->pattern;
> > + ctx->verbose = (int)cfg->verbose;
> > + ctx->dma_buf_size = cfg->size;
> > +
> > + ret = dma_afu_buf_alloc(ctx, cfg);
> > + if (ret)
> > + goto free;
> > +
> > + printf("Initialize test buffer\n");
> > + dma_afu_buf_init(ctx, cfg->length);
> > +
> > + /* enable interrupt */
> > + ctrl.csr = 0;
> > + ctrl.global_intr_en_mask = 1;
> > + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> > +
> > + printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
> > + cfg->offset, cfg->length);
> > + ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
> > + cfg->length, HOST_TO_FPGA);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed to transfer data from host to
> > FPGA");
> > + goto end;
> > + }
> > + memset(ctx->data_buf, 0, cfg->length);
> > +
> > + printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
> > + ctx->data_buf, cfg->length);
> > + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
> > + cfg->length, FPGA_TO_HOST);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> > host");
> > + goto end;
> > + }
> > + ret = dma_afu_buf_verify(ctx, cfg->length);
> > + if (ret)
> > + goto end;
> > +
> > + if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
> > + offset = cfg->offset + cfg->length;
> > + else if (cfg->offset > cfg->length)
> > + offset = 0;
> > + else
> > + goto end;
> > +
> > + printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
> > + cfg->offset, offset, cfg->length);
> > + ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
> > + FPGA_TO_FPGA);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> > FPGA");
> > + goto end;
> > + }
> > +
> > + printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
> > + ctx->data_buf, cfg->length);
> > + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
> > + cfg->length, FPGA_TO_HOST);
> > + if (ret) {
> > + AFU_MF_PMD_ERR("Failed to transfer data from FPGA to
> > host");
> > + goto end;
> > + }
> > + ret = dma_afu_buf_verify(ctx, cfg->length);
> > + if (ret)
> > + goto end;
> > +
> > + printf("Sweep with aligned address and size\n");
> > + ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
> > + if (ret)
> > + goto end;
> > +
> > + if (cfg->unaligned) {
> > + printf("Sweep with unaligned address and size\n");
> > + struct unaligned_set {
> > + uint64_t addr_offset;
> > + uint64_t size_dec;
> > + } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
> > + for (i = 0; i < ARRAY_SIZE(param); i++) {
> > + ret = sweep_test(ctx, cfg->length, cfg->offset,
> > + param[i].addr_offset, param[i].size_dec);
> > + if (ret)
> > + break;
> > + }
> > + }
> > +
> > +end:
> > + /* disable interrupt */
> > + ctrl.global_intr_en_mask = 0;
> > + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> > +
> > +free:
> > + dma_afu_buf_free(ctx);
> > + return ret;
> > +}
> > +
> > +static struct rte_pci_device *n3000_afu_get_pci_dev(struct
> afu_mf_rawdev
> > *dev)
> > +{
> > + struct rte_afu_device *afudev = NULL;
> > +
> > + if (!dev || !dev->rawdev || !dev->rawdev->device)
> > + return NULL;
> > +
> > + afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
> > + if (!afudev->rawdev || !afudev->rawdev->device)
> > + return NULL;
> > +
> > + return RTE_DEV_TO_PCI(afudev->rawdev->device);
> > +}
> > +
> > +#ifdef VFIO_PRESENT
> > +static int dma_afu_set_irqs(struct afu_mf_rawdev *dev, uint32_t
> vec_start,
> > + uint32_t count, int *efds)
> > +{
> > + struct rte_pci_device *pci_dev = NULL;
> > + struct vfio_irq_set *irq_set = NULL;
> > + int vfio_dev_fd = 0;
> > + size_t sz = 0;
> > + int ret = 0;
> > +
> > + if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
> > + return -EINVAL;
> > +
> > + pci_dev = n3000_afu_get_pci_dev(dev);
> > + if (!pci_dev)
> > + return -ENODEV;
> > + vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
> > +
> > + sz = sizeof(*irq_set) + sizeof(*efds) * count;
> > + irq_set = rte_zmalloc(NULL, sz, 0);
> > + if (!irq_set)
> > + return -ENOMEM;
> > +
> > + irq_set->argsz = (uint32_t)sz;
> > + irq_set->count = count;
> > + irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
> > + VFIO_IRQ_SET_ACTION_TRIGGER;
> > + irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
> > + irq_set->start = vec_start;
> > +
> > + rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
> > + ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
> > + if (ret)
> > + AFU_MF_PMD_ERR("Error enabling MSI-X interrupts\n");
> > +
> > + rte_free(irq_set);
> > + return ret;
> > +}
> > +#endif
> > +
> > +static void *n3000_afu_get_port_addr(struct afu_mf_rawdev *dev)
> > +{
> > + struct rte_pci_device *pci_dev = NULL;
> > + uint8_t *addr = NULL;
> > + uint64_t val = 0;
> > + uint32_t bar = 0;
> > +
> > + pci_dev = n3000_afu_get_pci_dev(dev);
> > + if (!pci_dev)
> > + return NULL;
> > +
> > + addr = (uint8_t *)pci_dev->mem_resource[0].addr;
> > + val = rte_read64(addr + PORT_ATTR_REG(dev->port));
> > + if (!PORT_IMPLEMENTED(val)) {
> > + AFU_MF_PMD_INFO("FIU port %d is not implemented",
> dev-
> > >port);
> > + return NULL;
> > + }
> > +
> > + bar = PORT_BAR(val);
> > + if (bar >= PCI_MAX_RESOURCE) {
> > + AFU_MF_PMD_ERR("BAR index %u is out of limit", bar);
> > + return NULL;
> > + }
> > +
> > + addr = (uint8_t *)pci_dev->mem_resource[bar].addr +
> > PORT_OFFSET(val);
> > + return addr;
> > +}
> > +
> > +static int n3000_afu_get_irq_capability(struct afu_mf_rawdev *dev,
> > + uint32_t *vec_start, uint32_t *vec_count)
> > +{
> > + uint8_t *addr = NULL;
> > + uint64_t val = 0;
> > + uint64_t header = 0;
> > + uint64_t next_offset = 0;
> > +
> > + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> > + if (!addr)
> > + return -ENOENT;
> > +
> > + do {
> > + addr += next_offset;
> > + header = rte_read64(addr);
> > + if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
> > + (DFH_FEATURE_ID(header) ==
> > PORT_FEATURE_UINT_ID)) {
> > + val = rte_read64(addr + PORT_UINT_CAP_REG);
> > + if (vec_start)
> > + *vec_start = PORT_VEC_START(val);
> > + if (vec_count)
> > + *vec_count = PORT_VEC_COUNT(val);
> > + return 0;
> > + }
> > + next_offset = DFH_NEXT_OFFSET(header);
> > + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> > + break;
> > + } while (!DFH_EOL(header));
> > +
> > + return -ENOENT;
> > +}
> > +
> > +static int nlb_afu_ctx_release(struct afu_mf_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct nlb_afu_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->nlb_ctx;
> > +
> > + rte_free(ctx->dsm_ptr);
> > + ctx->dsm_ptr = NULL;
> > + ctx->status_ptr = NULL;
> > +
> > + rte_free(ctx->src_ptr);
> > + ctx->src_ptr = NULL;
> > +
> > + rte_free(ctx->dest_ptr);
> > + ctx->dest_ptr = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int nlb_afu_ctx_init(struct afu_mf_rawdev *dev, uint8_t *addr)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct nlb_afu_ctx *ctx = NULL;
> > + int ret = 0;
> > +
> > + if (!dev || !addr)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->nlb_ctx;
> > + ctx->addr = addr;
> > +
> > + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> > TEST_MEM_ALIGN);
> > + if (!ctx->dsm_ptr) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> > + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->src_ptr) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> > + if (ctx->src_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->dest_ptr) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
>
> Suppose that If ctx->dest_ptr fail, the nlb_afu_ctx_release() will work
> correct?
>
> > + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> > + if (ctx->dest_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr +
> > DSM_STATUS);
> > + return 0;
> > +
> > +release:
> > + nlb_afu_ctx_release(dev);
> > + return ret;
> > +}
> > +
> > +static int dma_afu_ctx_release(struct afu_mf_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct dma_afu_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->dma_ctx[0];
> > +
> > + rte_free(ctx->desc_buf);
> > + ctx->desc_buf = NULL;
> > +
> > + rte_free(ctx->magic_buf);
> > + ctx->magic_buf = NULL;
> > +
> > + close(ctx->event_fd);
> > + return 0;
> > +}
> > +
> > +static int dma_afu_ctx_init(struct afu_mf_rawdev *dev, int index, uint8_t
> > *addr)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct dma_afu_ctx *ctx = NULL;
> > + uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000,
> > 0x1000000};
> > + static int efds[1] = {0};
> > + uint32_t vec_start = 0;
> > + int ret = 0;
> > +
> > + if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->dma_ctx[index];
> > + ctx->index = index;
> > + ctx->addr = addr;
> > + ctx->csr_addr = addr + DMA_CSR;
> > + ctx->desc_addr = addr + DMA_DESC;
> > + ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
> > + ctx->ase_data_addr = addr + DMA_ASE_DATA;
> > + ctx->mem_size = mem_sz[ctx->index];
> > + ctx->cur_ase_page = INVALID_ASE_PAGE;
> > + if (ctx->index == 0) {
> > + ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
> > + if (ret)
> > + return ret;
> > +
> > + efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
> > + if (efds[0] < 0) {
> > + AFU_MF_PMD_ERR("eventfd create failed");
> > + return -EBADF;
> > + }
> > +#ifdef VFIO_PRESENT
> > + if (dma_afu_set_irqs(dev, vec_start, 1, efds))
> > + AFU_MF_PMD_ERR("DMA interrupt setup failed");
> > +#endif
> > + }
> > + ctx->event_fd = efds[0];
> > +
> > + ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
> > + sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
> > + if (!ctx->desc_buf) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->magic_buf) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
>
> Suppose that If ctx->magic_buf fail, the dma_afu_ctx_release () will work
> correct?
>
> > + ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
> > + if (ctx->magic_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + return 0;
> > +
> > +release:
> > + dma_afu_ctx_release(dev);
> > + return ret;
> > +}
> > +
> > +static int n3000_afu_ctx_init(struct afu_mf_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + uint8_t *addr = NULL;
> > + uint64_t header = 0;
> > + uint64_t uuid_hi = 0;
> > + uint64_t uuid_lo = 0;
> > + uint64_t next_offset = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + addr = (uint8_t *)dev->addr;
> > + do {
> > + addr += next_offset;
> > + header = rte_read64(addr);
> > + uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
> > + uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
> > +
> > + if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
> > + (uuid_lo == N3000_NLB0_UUID_L) &&
> > + (uuid_hi == N3000_NLB0_UUID_H)) {
> > + AFU_MF_PMD_INFO("AFU NLB0 found @ %p", (void
> > *)addr);
> > + ret = nlb_afu_ctx_init(dev, addr);
> > + if (ret)
> > + return ret;
> > + } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
> > + (uuid_lo == N3000_DMA_UUID_L) &&
> > + (uuid_hi == N3000_DMA_UUID_H) &&
> > + (priv->num_dma < NUM_N3000_DMA)) {
> > + AFU_MF_PMD_INFO("AFU DMA%d found @ %p",
> > + priv->num_dma, (void *)addr);
> > + ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
> > + if (ret)
> > + return ret;
> > + priv->num_dma++;
> > + } else {
> > + AFU_MF_PMD_DEBUG("DFH: type %"PRIu64
> > + ", uuid %016"PRIx64"%016"PRIx64,
> > + DFH_TYPE(header), uuid_hi, uuid_lo);
> > + }
> > +
> > + next_offset = DFH_NEXT_OFFSET(header);
> > + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> > + break;
> > + } while (!DFH_EOL(header));
> > +
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_init(struct afu_mf_rawdev *dev)
> > +{
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv) {
> > + dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv),
> 0);
> > + if (!dev->priv)
> > + return -ENOMEM;
> > + }
> > +
> > + return n3000_afu_ctx_init(dev);
> > +}
> > +
> > +static int n3000_afu_config(struct afu_mf_rawdev *dev, void *config,
> > + size_t config_size)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct rte_pmd_afu_n3000_cfg *cfg = NULL;
> > + int i = 0;
> > + uint64_t top = 0;
> > +
> > + if (!dev || !config || !config_size)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
> > + return -EINVAL;
> > +
> > + cfg = (struct rte_pmd_afu_n3000_cfg *)config;
> > + if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
> > + if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
> > + (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
> > + return -EINVAL;
> > + if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
> > + return -EINVAL;
> > + if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
> > + return -EINVAL;
> > + if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.multi_cl != 1) &&
> > + (cfg->nlb_cfg.multi_cl != 2) &&
> > + (cfg->nlb_cfg.multi_cl != 4))
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
> > + (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
> > + (cfg->nlb_cfg.end > MAX_CACHE_LINES))
> > + return -EINVAL;
> > + rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
> > + sizeof(struct rte_pmd_afu_nlb_cfg));
> > + } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
> > + if (cfg->dma_cfg.index >= NUM_N3000_DMA)
> > + return -EINVAL;
> > + i = cfg->dma_cfg.index;
> > + if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
> > + return -EINVAL;
> > + if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
> > + return -EINVAL;
> > + top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
> > + if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
> > + return -EINVAL;
> > + if (i == 3) { /* QDR connected to DMA3 */
> > + if (cfg->dma_cfg.length & 0x3f) {
> > + cfg->dma_cfg.length &= ~0x3f;
> > + AFU_MF_PMD_INFO("Round size to %x for
> > QDR",
> > + cfg->dma_cfg.length);
> > + }
> > + }
> > + rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
> > + sizeof(struct rte_pmd_afu_dma_cfg));
> > + } else {
> > + AFU_MF_PMD_ERR("Invalid type of N3000 AFU");
> > + return -EINVAL;
> > + }
> > +
> > + priv->cfg_type = cfg->type;
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_test(struct afu_mf_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > +
> > + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> > + AFU_MF_PMD_INFO("Test NLB");
> > + ret = nlb_afu_test(dev);
> > + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> > + AFU_MF_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
> > + ret = dma_afu_test(dev);
> > + } else {
> > + AFU_MF_PMD_ERR("Please configure AFU before test");
> > + ret = -EINVAL;
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int n3000_afu_close(struct afu_mf_rawdev *dev)
> > +{
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + nlb_afu_ctx_release(dev);
> > + dma_afu_ctx_release(dev);
> > +
> > + rte_free(dev->priv);
> > + dev->priv = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_dump(struct afu_mf_rawdev *dev, FILE *f)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (!f)
> > + f = stdout;
> > +
> > + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> > + struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
> > + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> > + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> > + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> > + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> > + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> > + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> > + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> > + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> > + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> > + struct dma_afu_ctx *ctx = &priv->dma_ctx[priv-
> > >dma_cfg.index];
> > + fprintf(f, "index:\t\t%d\n", ctx->index);
> > + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> > + fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
> > + fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
> > + fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
> > + fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx-
> >ase_data_addr);
> > + fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
> > + fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
> > + fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
> > + } else {
> > + return -EINVAL;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_reset(struct afu_mf_rawdev *dev)
> > +{
> > + uint8_t *addr = NULL;
> > + uint64_t val = 0;
> > +
> > + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> > + if (!addr)
> > + return -ENOENT;
> > +
> > + val = rte_read64(addr + PORT_CTRL_REG);
> > + val |= PORT_SOFT_RESET;
> > + rte_write64(val, addr + PORT_CTRL_REG);
> > + rte_delay_us(100);
> > + val &= ~PORT_SOFT_RESET;
> > + rte_write64(val, addr + PORT_CTRL_REG);
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_mf_ops n3000_afu_ops = {
> > + .init = n3000_afu_init,
> > + .config = n3000_afu_config,
> > + .start = NULL,
> > + .stop = NULL,
> > + .test = n3000_afu_test,
> > + .close = n3000_afu_close,
> > + .dump = n3000_afu_dump,
> > + .reset = n3000_afu_reset
> > +};
> > +
> > +struct afu_mf_drv n3000_afu_drv = {
> > + .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> > + .ops = &n3000_afu_ops
> > +};
> > diff --git a/drivers/raw/afu_mf/n3000_afu.h
> b/drivers/raw/afu_mf/n3000_afu.h
> > new file mode 100644
> > index 0000000..4c740da
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/n3000_afu.h
> > @@ -0,0 +1,333 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation
> > + */
> > +
> > +#ifndef _N3000_AFU_H_
> > +#define _N3000_AFU_H_
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "rte_pmd_afu.h"
> > +
> > +#define N3000_AFU_UUID_L 0xc000c9660d824272
> > +#define N3000_AFU_UUID_H 0x9aeffe5f84570612
> > +#define N3000_NLB0_UUID_L 0xf89e433683f9040b
> > +#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
> > +#define N3000_DMA_UUID_L 0xa9149a35bace01ea
> > +#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
> > +
> > +extern struct afu_mf_drv n3000_afu_drv;
> > +
> > +#define NUM_N3000_DMA 4
> > +#define MAX_MSIX_VEC 7
> > +
> > +/* N3000 DFL definition */
> > +#define DFH_UUID_L_OFFSET 8
> > +#define DFH_UUID_H_OFFSET 16
> > +#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
> > +#define DFH_TYPE_AFU 1
> > +#define DFH_TYPE_BBB 2
> > +#define DFH_TYPE_PRIVATE 3
> > +#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
> > +#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
> > +#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
> > +#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
> > +#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
> > +#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
> > +#define PORT_OFFSET(attr) ((attr) & 0xffffff)
> > +#define PORT_FEATURE_UINT_ID 0x12
> > +#define PORT_UINT_CAP_REG 0x8
> > +#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
> > +#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
> > +#define PORT_CTRL_REG 0x38
> > +#define PORT_SOFT_RESET (0x1 << 0)
> > +
> > +/* NLB registers definition */
> > +#define CSR_SCRATCHPAD0 0x100
> > +#define CSR_SCRATCHPAD1 0x108
> > +#define CSR_AFU_DSM_BASEL 0x110
> > +#define CSR_AFU_DSM_BASEH 0x114
> > +#define CSR_SRC_ADDR 0x120
> > +#define CSR_DST_ADDR 0x128
> > +#define CSR_NUM_LINES 0x130
> > +#define CSR_CTL 0x138
> > +#define CSR_CFG 0x140
> > +#define CSR_INACT_THRESH 0x148
> > +#define CSR_INTERRUPT0 0x150
> > +#define CSR_SWTEST_MSG 0x158
> > +#define CSR_STATUS0 0x160
> > +#define CSR_STATUS1 0x168
> > +#define CSR_ERROR 0x170
> > +#define CSR_STRIDE 0x178
> > +#define CSR_HE_INFO0 0x180
> > +
> > +#define DSM_SIZE 0x200000
> > +#define DSM_STATUS 0x40
> > +#define DSM_POLL_INTERVAL 5 /* ms */
> > +#define DSM_TIMEOUT 1000 /* ms */
> > +
> > +#define NLB_BUF_SIZE 0x400000
> > +#define TEST_MEM_ALIGN 1024
> > +
> > +struct nlb_csr_ctl {
> > + union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t reset:1;
> > + uint32_t start:1;
> > + uint32_t force_completion:1;
> > + uint32_t reserved:29;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_csr_cfg {
> > + union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t wrthru_en:1;
> > + uint32_t cont:1;
> > + uint32_t mode:3;
> > + uint32_t multicl_len:2;
> > + uint32_t rsvd1:1;
> > + uint32_t delay_en:1;
> > + uint32_t rdsel:2;
> > + uint32_t rsvd2:1;
> > + uint32_t chsel:3;
> > + uint32_t rsvd3:1;
> > + uint32_t wrpush_i:1;
> > + uint32_t wr_chsel:3;
> > + uint32_t rsvd4:3;
> > + uint32_t test_cfg:5;
> > + uint32_t interrupt_on_error:1;
> > + uint32_t interrupt_testmode:1;
> > + uint32_t wrfence_chsel:2;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_status0 {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t num_writes;
> > + uint32_t num_reads;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_status1 {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t num_pend_writes;
> > + uint32_t num_pend_reads;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_dsm_status {
> > + uint32_t test_complete;
> > + uint32_t test_error;
> > + uint64_t num_clocks;
> > + uint32_t num_reads;
> > + uint32_t num_writes;
> > + uint32_t start_overhead;
> > + uint32_t end_overhead;
> > +};
> > +
> > +/* DMA registers definition */
> > +#define DMA_CSR 0x40
> > +#define DMA_DESC 0x60
> > +#define DMA_ASE_CTRL 0x200
> > +#define DMA_ASE_DATA 0x1000
> > +
> > +#define DMA_ASE_WINDOW 4096
> > +#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW -
> 1))
> > +#define INVALID_ASE_PAGE 0xffffffffffffffffULL
> > +
> > +#define DMA_WF_MAGIC 0x5772745F53796E63ULL
> > +#define DMA_WF_MAGIC_ROM 0x1000000000000
> > +#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
> > +#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
> > +
> > +#define NUM_DMA_BUF 8
> > +#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
> > +
> > +#define DMA_MASK_32_BIT 0xFFFFFFFF
> > +
> > +#define DMA_CSR_BUSY 0x1
> > +#define DMA_DESC_BUFFER_EMPTY 0x2
> > +#define DMA_DESC_BUFFER_FULL 0x4
> > +
> > +#define DWORD_BYTES 4
> > +#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
> > +
> > +#define QWORD_BYTES 8
> > +#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
> > +
> > +#define DMA_ALIGN_BYTES 64
> > +#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
> > +
> > +#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
> > +
> > +#define DMA_TIMEOUT_MSEC 5000
> > +
> > +#define MAGIC_BUF_SIZE 64
> > +#define ERR_CHECK_LIMIT 64
> > +
> > +#ifndef MIN
> > +#define MIN(a, b) ((a) < (b) ? (a) : (b))
> > +#endif
> > +
> > +#ifndef ARRAY_SIZE
> > +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
> > +#endif
> > +
> > +typedef enum {
> > + HOST_TO_FPGA = 0,
> > + FPGA_TO_HOST,
> > + FPGA_TO_FPGA,
> > + FPGA_MAX_TRANSFER_TYPE,
> > +} fpga_dma_type;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t tx_channel:8;
> > + uint32_t generate_sop:1;
> > + uint32_t generate_eop:1;
> > + uint32_t park_reads:1;
> > + uint32_t park_writes:1;
> > + uint32_t end_on_eop:1;
> > + uint32_t reserved_1:1;
> > + uint32_t transfer_irq_en:1;
> > + uint32_t early_term_irq_en:1;
> > + uint32_t trans_error_irq_en:8;
> > + uint32_t early_done_en:1;
> > + uint32_t reserved_2:6;
> > + uint32_t go:1;
> > + };
> > +} msgdma_desc_ctrl;
> > +
> > +typedef struct __rte_packed {
> > + uint32_t rd_address;
> > + uint32_t wr_address;
> > + uint32_t len;
> > + uint16_t seq_num;
> > + uint8_t rd_burst_count;
> > + uint8_t wr_burst_count;
> > + uint16_t rd_stride;
> > + uint16_t wr_stride;
> > + uint32_t rd_address_ext;
> > + uint32_t wr_address_ext;
> > + msgdma_desc_ctrl control;
> > +} msgdma_ext_desc;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t busy:1;
> > + uint32_t desc_buf_empty:1;
> > + uint32_t desc_buf_full:1;
> > + uint32_t rsp_buf_empty:1;
> > + uint32_t rsp_buf_full:1;
> > + uint32_t stopped:1;
> > + uint32_t resetting:1;
> > + uint32_t stopped_on_error:1;
> > + uint32_t stopped_on_early_term:1;
> > + uint32_t irq:1;
> > + uint32_t reserved:22;
> > + };
> > +} msgdma_status;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t stop_dispatcher:1;
> > + uint32_t reset_dispatcher:1;
> > + uint32_t stop_on_error:1;
> > + uint32_t stopped_on_early_term:1;
> > + uint32_t global_intr_en_mask:1;
> > + uint32_t stop_descriptors:1;
> > + uint32_t reserved:22;
> > + };
> > +} msgdma_ctrl;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t rd_fill_level:16;
> > + uint32_t wr_fill_level:16;
> > + };
> > +} msgdma_fill_level;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t rsp_fill_level:16;
> > + uint32_t reserved:16;
> > + };
> > +} msgdma_rsp_level;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t rd_seq_num:16;
> > + uint32_t wr_seq_num:16;
> > + };
> > +} msgdma_seq_num;
> > +
> > +typedef struct __rte_packed {
> > + msgdma_status status;
> > + msgdma_ctrl ctrl;
> > + msgdma_fill_level fill_level;
> > + msgdma_rsp_level rsp;
> > + msgdma_seq_num seq_num;
> > +} msgdma_csr;
> > +
> > +#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
> > +#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
> > +
> > +struct nlb_afu_ctx {
> > + uint8_t *addr;
> > + uint8_t *dsm_ptr;
> > + uint64_t dsm_iova;
> > + uint8_t *src_ptr;
> > + uint64_t src_iova;
> > + uint8_t *dest_ptr;
> > + uint64_t dest_iova;
> > + struct nlb_dsm_status *status_ptr;
> > +};
> > +
> > +struct dma_afu_ctx {
> > + int index;
> > + uint8_t *addr;
> > + uint8_t *csr_addr;
> > + uint8_t *desc_addr;
> > + uint8_t *ase_ctrl_addr;
> > + uint8_t *ase_data_addr;
> > + uint64_t mem_size;
> > + uint64_t cur_ase_page;
> > + int event_fd;
> > + int verbose;
> > + int pattern;
> > + void *data_buf;
> > + void *ref_buf;
> > + msgdma_ext_desc *desc_buf;
> > + uint64_t *magic_buf;
> > + uint64_t magic_iova;
> > + uint32_t dma_buf_size;
> > + uint64_t *dma_buf[NUM_DMA_BUF];
> > + uint64_t dma_iova[NUM_DMA_BUF];
> > +};
> > +
> > +struct n3000_afu_priv {
> > + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> > + struct rte_pmd_afu_dma_cfg dma_cfg;
> > + struct nlb_afu_ctx nlb_ctx;
> > + struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
> > + int num_dma;
> > + int cfg_type;
> > +};
> > +
> > +#endif /* _N3000_AFU_H_ */
> > diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> > b/drivers/raw/afu_mf/rte_pmd_afu.h
> > new file mode 100644
> > index 0000000..f14a053
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> > @@ -0,0 +1,97 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + */
> > +
> > +#ifndef __RTE_PMD_AFU_H__
> > +#define __RTE_PMD_AFU_H__
> > +
> > +/**
> > + * @file rte_pmd_afu.h
> > + *
> > + * AFU PMD specific definitions.
> > + *
> > + * @b EXPERIMENTAL: this API may change, or be removed, without prior
> > notice
> > + *
> > + */
> > +
> > +#ifdef __cplusplus
> > +extern "C" {
> > +#endif
> > +
> > +#include <stdint.h>
> > +
> > +#define RTE_PMD_AFU_N3000_NLB 1
> > +#define RTE_PMD_AFU_N3000_DMA 2
> > +
> > +#define NLB_MODE_LPBK 0
> > +#define NLB_MODE_READ 1
> > +#define NLB_MODE_WRITE 2
> > +#define NLB_MODE_TRPUT 3
> > +
> > +#define NLB_VC_AUTO 0
> > +#define NLB_VC_VL0 1
> > +#define NLB_VC_VH0 2
> > +#define NLB_VC_VH1 3
> > +#define NLB_VC_RANDOM 4
> > +
> > +#define NLB_WRLINE_M 0
> > +#define NLB_WRLINE_I 1
> > +#define NLB_WRPUSH_I 2
> > +
> > +#define NLB_RDLINE_S 0
> > +#define NLB_RDLINE_I 1
> > +#define NLB_RDLINE_MIXED 2
> > +
> > +#define MIN_CACHE_LINES 1
> > +#define MAX_CACHE_LINES 1024
> > +
> > +#define MIN_DMA_BUF_SIZE 64
> > +#define MAX_DMA_BUF_SIZE (1023 * 1024)
> > +
> > +/**
> > + * NLB AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_nlb_cfg {
> > + uint32_t mode;
> > + uint32_t begin;
> > + uint32_t end;
> > + uint32_t multi_cl;
> > + uint32_t cont;
> > + uint32_t timeout;
> > + uint32_t cache_policy;
> > + uint32_t cache_hint;
> > + uint32_t read_vc;
> > + uint32_t write_vc;
> > + uint32_t wrfence_vc;
> > + uint32_t freq_mhz;
> > +};
> > +
> > +/**
> > + * DMA AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_dma_cfg {
> > + uint32_t index; /* index of DMA controller */
> > + uint32_t length; /* total length of data to DMA */
> > + uint32_t offset; /* address offset of target memory */
> > + uint32_t size; /* size of transfer buffer */
> > + uint32_t pattern; /* data pattern to fill in test buffer */
> > + uint32_t unaligned; /* use unaligned address or length in sweep test
> */
> > + uint32_t verbose; /* enable verbose error information in test */
> > +};
> > +
> > +/**
> > + * N3000 AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_n3000_cfg {
> > + int type; /* RTE_PMD_AFU_N3000_NLB or
> > RTE_PMD_AFU_N3000_DMA */
> > + union {
> > + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> > + struct rte_pmd_afu_dma_cfg dma_cfg;
> > + };
> > +};
> > +
> > +#ifdef __cplusplus
> > +}
> > +#endif
> > +
> > +#endif /* __RTE_PMD_AFU_H__ */
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v5 3/5] raw/afu_mf: add HE-LBK AFU driver
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
2022-05-27 5:37 ` [PATCH v5 1/5] drivers/raw: introduce AFU " Wei Huang
2022-05-27 5:37 ` [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver Wei Huang
@ 2022-05-27 5:37 ` Wei Huang
2022-06-06 1:41 ` Zhang, Tianfei
2022-05-27 5:37 ` [PATCH v5 4/5] raw/afu_mf: add HE-MEM " Wei Huang
` (3 subsequent siblings)
6 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-05-27 5:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-LBK and HE-MEM-LBK are host exerciser modules in OFS FPGA,
HE-LBK is used to test PCI bus and HE-MEM-LBK is used to test
local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 5 +
drivers/raw/afu_mf/he_lbk.c | 427 +++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/he_lbk.h | 121 +++++++++++
drivers/raw/afu_mf/meson.build | 2 +-
drivers/raw/afu_mf/rte_pmd_afu.h | 14 ++
5 files changed, 568 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/afu_mf/he_lbk.c
create mode 100644 drivers/raw/afu_mf/he_lbk.h
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
index 7c18f3b..e91eb21 100644
--- a/drivers/raw/afu_mf/afu_mf_rawdev.c
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -20,16 +20,21 @@
#include "rte_pmd_afu.h"
#include "afu_mf_rawdev.h"
#include "n3000_afu.h"
+#include "he_lbk.h"
#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
static const struct rte_afu_uuid afu_uuid_map[] = {
{ N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
{ 0, 0 /* sentinel */ }
};
static struct afu_mf_drv *afu_table[] = {
&n3000_afu_drv,
+ &he_lbk_drv,
+ &he_mem_lbk_drv,
NULL
};
diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c
new file mode 100644
index 0000000..8735647
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.c
@@ -0,0 +1,427 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_lbk.h"
+
+static int he_lbk_afu_config(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_dsm_status *stat = NULL;
+ struct he_lbk_status0 stat0;
+ struct he_lbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ AFU_MF_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12"PRIu64
+ " %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lbk_test(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ struct he_lbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lbk_cfg;
+ ctx = &priv->he_lbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+
+ AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ AFU_MF_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lbk_ctx_release(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lbk_ctx_init(struct afu_mf_rawdev *dev)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release:
+ he_lbk_ctx_release(dev);
+ return ret;
+}
+
+static int he_lbk_init(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lbk_ctx_init(dev);
+}
+
+static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
+
+ return 0;
+}
+
+static int he_lbk_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_lbk_priv *priv = NULL;
+ struct he_lbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_lbk_ops = {
+ .init = he_lbk_init,
+ .config = he_lbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lbk_test,
+ .close = he_lbk_close,
+ .dump = he_lbk_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_lbk_drv = {
+ .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
+
+struct afu_mf_drv he_mem_lbk_drv = {
+ .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ .ops = &he_lbk_ops
+};
diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h
new file mode 100644
index 0000000..c2e8a29
--- /dev/null
+++ b/drivers/raw/afu_mf/he_lbk.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_LBK_H_
+#define _HE_LBK_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LBK_UUID_L 0xb94b12284c31e02b
+#define HE_LBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LBK_UUID_H 0x8568ab4e6ba54616
+
+extern struct afu_mf_drv he_lbk_drv;
+extern struct afu_mf_drv he_mem_lbk_drv;
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lbk_dsm_status *status_ptr;
+};
+
+struct he_lbk_priv {
+ struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
+ struct he_lbk_ctx he_lbk_ctx;
+};
+
+#endif /* _HE_LBK_H_ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
index 8a989e3..a983f53 100644
--- a/drivers/raw/afu_mf/meson.build
+++ b/drivers/raw/afu_mf/meson.build
@@ -2,6 +2,6 @@
# Copyright 2022 Intel Corporation
deps += ['rawdev', 'bus_pci', 'bus_ifpga']
-sources = files('afu_mf_rawdev.c', 'n3000_afu.c')
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c')
headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
index f14a053..658df55 100644
--- a/drivers/raw/afu_mf/rte_pmd_afu.h
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
};
};
+/**
+ * HE-LBK & HE-MEM-LBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 3/5] raw/afu_mf: add HE-LBK AFU driver
2022-05-27 5:37 ` [PATCH v5 3/5] raw/afu_mf: add HE-LBK " Wei Huang
@ 2022-06-06 1:41 ` Zhang, Tianfei
2022-06-07 2:42 ` Huang, Wei
0 siblings, 1 reply; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-06 1:41 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Friday, May 27, 2022 1:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v5 3/5] raw/afu_mf: add HE-LBK AFU driver
>
> HE-LBK and HE-MEM-LBK are host exerciser modules in OFS FPGA, HE-LBK is
> used to test PCI bus and HE-MEM-LBK is used to test local memory.
> This driver initialize the modules and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> drivers/raw/afu_mf/afu_mf_rawdev.c | 5 +
> drivers/raw/afu_mf/he_lbk.c | 427
> +++++++++++++++++++++++++++++++++++++
> drivers/raw/afu_mf/he_lbk.h | 121 +++++++++++
> drivers/raw/afu_mf/meson.build | 2 +-
> drivers/raw/afu_mf/rte_pmd_afu.h | 14 ++
> 5 files changed, 568 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/afu_mf/he_lbk.c create mode 100644 drivers/raw/afu_mf/he_lbk.h
>
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> b/drivers/raw/afu_mf/afu_mf_rawdev.c
> index 7c18f3b..e91eb21 100644
> --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> @@ -20,16 +20,21 @@
> #include "rte_pmd_afu.h"
> #include "afu_mf_rawdev.h"
> #include "n3000_afu.h"
> +#include "he_lbk.h"
>
> #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
>
> static const struct rte_afu_uuid afu_uuid_map[] = {
> { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> + { HE_LBK_UUID_L, HE_LBK_UUID_H },
> + { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> { 0, 0 /* sentinel */ }
> };
>
> static struct afu_mf_drv *afu_table[] = {
> &n3000_afu_drv,
> + &he_lbk_drv,
> + &he_mem_lbk_drv,
> NULL
> };
>
> diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c new file
> mode 100644 index 0000000..8735647
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_lbk.c
> @@ -0,0 +1,427 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "he_lbk.h"
> +
> +static int he_lbk_afu_config(struct afu_mf_rawdev *dev) {
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> + struct he_lbk_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lbk_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + v.mode = cfg->mode;
> + v.trput_interleave = cfg->trput_interleave;
> + if (cfg->multi_cl == 4)
> + v.multicl_len = 2;
> + else
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl) {
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> + struct he_lbk_dsm_status *stat = NULL;
> + struct he_lbk_status0 stat0;
> + struct he_lbk_status1 stat1;
> + uint64_t swtest_msg = 0;
> + uint64_t ticks = 0;
> + uint64_t info = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + cfg = &priv->he_lbk_cfg;
> + ctx = &priv->he_lbk_ctx;
> +
> + stat = ctx->status_ptr;
> +
> + swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
> + stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
> + stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0) {
> + info = rte_read64(ctx->addr + CSR_HE_INFO0);
> + AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
> + cfg->freq_mhz = info & 0xffff;
> + if (cfg->freq_mhz == 0) {
> + AFU_MF_PMD_INFO("Frequency of AFU clock is
> unknown."
> + " Assuming 350 MHz.");
> + cfg->freq_mhz = 350;
> + }
> + }
> +
> + num = (double)stat0.num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat0.num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
> + "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
> + cfg->freq_mhz);
> + printf("%10u %10u %10u %10u %10u %12"PRIu64
> + " %7.3f GB/s %7.3f GB/s\n",
> + cl, stat0.num_reads, stat0.num_writes,
> + stat1.num_pend_reads, stat1.num_pend_writes,
> + ticks, rd_bw / 1e9, wr_bw / 1e9);
> + printf("Test Message: 0x%"PRIx64"\n", swtest_msg); }
> +
> +static int he_lbk_test(struct afu_mf_rawdev *dev) {
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> + struct he_lbk_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lbk_cfg;
> + ctx = &priv->he_lbk_ctx;
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + /* initialize DMA addresses */
> + AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
> +
> + AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
> +
> + AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr +
> CSR_AFU_DSM_BASEL);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
> + ctx->addr + CSR_AFU_DSM_BASEH);
> +
> + ret = he_lbk_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + he_lbk_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + if (cfg->mode == NLB_MODE_LPBK) {
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + AFU_MF_PMD_ERR("Data mismatch @
> %u", i);
> + break;
> + }
> + }
> + }
> + }
> +
> +end:
> + return 0;
> +}
> +
> +static int he_lbk_ctx_release(struct afu_mf_rawdev *dev) {
> + struct he_lbk_priv *priv = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lbk_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lbk_ctx_init(struct afu_mf_rawdev *dev) {
> + struct he_lbk_priv *priv = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lbk_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release;
If ctx->src_ptr alloc fail, he_lbk_ctx_release() can work?
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
> + return 0;
> +
> +release:
> + he_lbk_ctx_release(dev);
> + return ret;
> +}
> +
> +static int he_lbk_init(struct afu_mf_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return he_lbk_ctx_init(dev);
> +}
> +
> +static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_lbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
> + if (cfg->mode > NLB_MODE_TRPUT)
> + return -EINVAL;
> + if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
> + (cfg->multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin >
> MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
> +
> + return 0;
> +}
> +
> +static int he_lbk_close(struct afu_mf_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + he_lbk_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f) {
> + struct he_lbk_priv *priv = NULL;
> + struct he_lbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_lbk_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops he_lbk_ops = {
> + .init = he_lbk_init,
> + .config = he_lbk_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_lbk_test,
> + .close = he_lbk_close,
> + .dump = he_lbk_dump,
> + .reset = NULL
> +};
> +
> +struct afu_mf_drv he_lbk_drv = {
> + .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
> + .ops = &he_lbk_ops
> +};
> +
> +struct afu_mf_drv he_mem_lbk_drv = {
> + .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> + .ops = &he_lbk_ops
> +};
> diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h new file
> mode 100644 index 0000000..c2e8a29
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_lbk.h
> @@ -0,0 +1,121 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _HE_LBK_H_
> +#define _HE_LBK_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_LBK_UUID_L 0xb94b12284c31e02b
> +#define HE_LBK_UUID_H 0x56e203e9864f49a7
> +#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb #define
> HE_MEM_LBK_UUID_H
> +0x8568ab4e6ba54616
> +
> +extern struct afu_mf_drv he_lbk_drv;
> +extern struct afu_mf_drv he_mem_lbk_drv;
> +
> +/* HE-LBK & HE-MEM-LBK registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct he_lbk_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct he_lbk_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t rsvd1:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd2:13;
> + uint32_t trput_interleave:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t rsvd3:2;
> + };
> + };
> +};
> +
> +struct he_lbk_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct he_lbk_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct he_lbk_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +struct he_lbk_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct he_lbk_dsm_status *status_ptr;
> +};
> +
> +struct he_lbk_priv {
> + struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
> + struct he_lbk_ctx he_lbk_ctx;
> +};
> +
> +#endif /* _HE_LBK_H_ */
> diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
> index 8a989e3..a983f53 100644
> --- a/drivers/raw/afu_mf/meson.build
> +++ b/drivers/raw/afu_mf/meson.build
> @@ -2,6 +2,6 @@
> # Copyright 2022 Intel Corporation
>
> deps += ['rawdev', 'bus_pci', 'bus_ifpga'] -sources = files('afu_mf_rawdev.c',
> 'n3000_afu.c')
> +sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c')
>
> headers = files('rte_pmd_afu.h')
> diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> b/drivers/raw/afu_mf/rte_pmd_afu.h
> index f14a053..658df55 100644
> --- a/drivers/raw/afu_mf/rte_pmd_afu.h
> +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> @@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
> };
> };
>
> +/**
> + * HE-LBK & HE-MEM-LBK AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_lbk_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t trput_interleave;
> + uint32_t freq_mhz;
> +};
> +
> #ifdef __cplusplus
> }
> #endif
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 3/5] raw/afu_mf: add HE-LBK AFU driver
2022-06-06 1:41 ` Zhang, Tianfei
@ 2022-06-07 2:42 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 2:42 UTC (permalink / raw)
To: Zhang, Tianfei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 09:41
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 3/5] raw/afu_mf: add HE-LBK AFU driver
>
>
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Friday, May 27, 2022 1:37 PM
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> > Wei <wei.huang@intel.com>
> > Subject: [PATCH v5 3/5] raw/afu_mf: add HE-LBK AFU driver
> >
> > HE-LBK and HE-MEM-LBK are host exerciser modules in OFS FPGA, HE-LBK
> > is used to test PCI bus and HE-MEM-LBK is used to test local memory.
> > This driver initialize the modules and report test result.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > drivers/raw/afu_mf/afu_mf_rawdev.c | 5 +
> > drivers/raw/afu_mf/he_lbk.c | 427
> > +++++++++++++++++++++++++++++++++++++
> > drivers/raw/afu_mf/he_lbk.h | 121 +++++++++++
> > drivers/raw/afu_mf/meson.build | 2 +-
> > drivers/raw/afu_mf/rte_pmd_afu.h | 14 ++
> > 5 files changed, 568 insertions(+), 1 deletion(-) create mode 100644
> > drivers/raw/afu_mf/he_lbk.c create mode 100644
> > drivers/raw/afu_mf/he_lbk.h
> >
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > index 7c18f3b..e91eb21 100644
> > --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > @@ -20,16 +20,21 @@
> > #include "rte_pmd_afu.h"
> > #include "afu_mf_rawdev.h"
> > #include "n3000_afu.h"
> > +#include "he_lbk.h"
> >
> > #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> >
> > static const struct rte_afu_uuid afu_uuid_map[] = {
> > { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> > + { HE_LBK_UUID_L, HE_LBK_UUID_H },
> > + { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> > { 0, 0 /* sentinel */ }
> > };
> >
> > static struct afu_mf_drv *afu_table[] = {
> > &n3000_afu_drv,
> > + &he_lbk_drv,
> > + &he_mem_lbk_drv,
> > NULL
> > };
> >
> > diff --git a/drivers/raw/afu_mf/he_lbk.c b/drivers/raw/afu_mf/he_lbk.c
> > new file mode 100644 index 0000000..8735647
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/he_lbk.c
> > @@ -0,0 +1,427 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation */
> > +
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <inttypes.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +#include <sys/ioctl.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memcpy.h>
> > +#include <rte_io.h>
> > +#include <rte_vfio.h>
> > +#include <rte_bus_pci.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "he_lbk.h"
> > +
> > +static int he_lbk_afu_config(struct afu_mf_rawdev *dev) {
> > + struct he_lbk_priv *priv = NULL;
> > + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> > + struct he_lbk_csr_cfg v;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_lbk_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + cfg = &priv->he_lbk_cfg;
> > +
> > + v.csr = 0;
> > +
> > + if (cfg->cont)
> > + v.cont = 1;
> > +
> > + v.mode = cfg->mode;
> > + v.trput_interleave = cfg->trput_interleave;
> > + if (cfg->multi_cl == 4)
> > + v.multicl_len = 2;
> > + else
> > + v.multicl_len = cfg->multi_cl - 1;
> > +
> > + AFU_MF_PMD_DEBUG("cfg: 0x%08x", v.csr);
> > + rte_write32(v.csr, priv->he_lbk_ctx.addr + CSR_CFG);
> > +
> > + return 0;
> > +}
> > +
> > +static void he_lbk_report(struct afu_mf_rawdev *dev, uint32_t cl) {
> > + struct he_lbk_priv *priv = NULL;
> > + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> > + struct he_lbk_ctx *ctx = NULL;
> > + struct he_lbk_dsm_status *stat = NULL;
> > + struct he_lbk_status0 stat0;
> > + struct he_lbk_status1 stat1;
> > + uint64_t swtest_msg = 0;
> > + uint64_t ticks = 0;
> > + uint64_t info = 0;
> > + double num, rd_bw, wr_bw;
> > +
> > + if (!dev || !dev->priv)
> > + return;
> > +
> > + priv = (struct he_lbk_priv *)dev->priv;
> > + cfg = &priv->he_lbk_cfg;
> > + ctx = &priv->he_lbk_ctx;
> > +
> > + stat = ctx->status_ptr;
> > +
> > + swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
> > + stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
> > + stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
> > +
> > + if (cfg->cont)
> > + ticks = stat->num_clocks - stat->start_overhead;
> > + else
> > + ticks = stat->num_clocks -
> > + (stat->start_overhead + stat->end_overhead);
> > +
> > + if (cfg->freq_mhz == 0) {
> > + info = rte_read64(ctx->addr + CSR_HE_INFO0);
> > + AFU_MF_PMD_INFO("API version: %"PRIx64, info >> 16);
> > + cfg->freq_mhz = info & 0xffff;
> > + if (cfg->freq_mhz == 0) {
> > + AFU_MF_PMD_INFO("Frequency of AFU clock is
> > unknown."
> > + " Assuming 350 MHz.");
> > + cfg->freq_mhz = 350;
> > + }
> > + }
> > +
> > + num = (double)stat0.num_reads;
> > + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> > + num = (double)stat0.num_writes;
> > + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> > +
> > + printf("Cachelines Read_Count Write_Count Pend_Read
> Pend_Write "
> > + "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
> > + cfg->freq_mhz);
> > + printf("%10u %10u %10u %10u %10u %12"PRIu64
> > + " %7.3f GB/s %7.3f GB/s\n",
> > + cl, stat0.num_reads, stat0.num_writes,
> > + stat1.num_pend_reads, stat1.num_pend_writes,
> > + ticks, rd_bw / 1e9, wr_bw / 1e9);
> > + printf("Test Message: 0x%"PRIx64"\n", swtest_msg); }
> > +
> > +static int he_lbk_test(struct afu_mf_rawdev *dev) {
> > + struct he_lbk_priv *priv = NULL;
> > + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> > + struct he_lbk_ctx *ctx = NULL;
> > + struct he_lbk_csr_ctl ctl;
> > + uint32_t *ptr = NULL;
> > + uint32_t i, j, cl, val = 0;
> > + uint64_t sval = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_lbk_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + cfg = &priv->he_lbk_cfg;
> > + ctx = &priv->he_lbk_ctx;
> > +
> > + ctl.csr = 0;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + rte_delay_us(1000);
> > + ctl.reset = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + /* initialize DMA addresses */
> > + AFU_MF_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> > + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr +
> CSR_SRC_ADDR);
> > +
> > + AFU_MF_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> > + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr +
> CSR_DST_ADDR);
> > +
> > + AFU_MF_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
> > + rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr +
> > CSR_AFU_DSM_BASEL);
> > + rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
> > + ctx->addr + CSR_AFU_DSM_BASEH);
> > +
> > + ret = he_lbk_afu_config(dev);
> > + if (ret)
> > + return ret;
> > +
> > + /* initialize src data */
> > + ptr = (uint32_t *)ctx->src_ptr;
> > + j = CLS_TO_SIZE(cfg->end) >> 2;
> > + for (i = 0; i < j; i++)
> > + *ptr++ = i;
> > +
> > + /* start test */
> > + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> > + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> > + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> > +
> > + ctl.csr = 0;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + rte_delay_us(1000);
> > + ctl.reset = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
> > +
> > + ctl.start = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + if (cfg->cont) {
> > + rte_delay_ms(cfg->timeout * 1000);
> > + ctl.force_completion = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + ret = dsm_poll_timeout(&ctx->status_ptr-
> > >test_complete,
> > + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> > + DSM_TIMEOUT);
> > + if (ret) {
> > + printf("DSM poll timeout\n");
> > + goto end;
> > + }
> > + } else {
> > + ret = dsm_poll_timeout(&ctx->status_ptr-
> > >test_complete,
> > + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> > + DSM_TIMEOUT);
> > + if (ret) {
> > + printf("DSM poll timeout\n");
> > + goto end;
> > + }
> > + ctl.force_completion = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + }
> > +
> > + he_lbk_report(dev, cl);
> > +
> > + i = 0;
> > + while (i++ < 100) {
> > + sval = rte_read64(ctx->addr + CSR_STATUS1);
> > + if (sval == 0)
> > + break;
> > + rte_delay_us(1000);
> > + }
> > +
> > + if (cfg->mode == NLB_MODE_LPBK) {
> > + ptr = (uint32_t *)ctx->dest_ptr;
> > + j = CLS_TO_SIZE(cl) >> 2;
> > + for (i = 0; i < j; i++) {
> > + if (*ptr++ != i) {
> > + AFU_MF_PMD_ERR("Data mismatch
> @
> > %u", i);
> > + break;
> > + }
> > + }
> > + }
> > + }
> > +
> > +end:
> > + return 0;
> > +}
> > +
> > +static int he_lbk_ctx_release(struct afu_mf_rawdev *dev) {
> > + struct he_lbk_priv *priv = NULL;
> > + struct he_lbk_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_lbk_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->he_lbk_ctx;
> > +
> > + rte_free(ctx->dsm_ptr);
> > + ctx->dsm_ptr = NULL;
> > + ctx->status_ptr = NULL;
> > +
> > + rte_free(ctx->src_ptr);
> > + ctx->src_ptr = NULL;
> > +
> > + rte_free(ctx->dest_ptr);
> > + ctx->dest_ptr = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int he_lbk_ctx_init(struct afu_mf_rawdev *dev) {
> > + struct he_lbk_priv *priv = NULL;
> > + struct he_lbk_ctx *ctx = NULL;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_lbk_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->he_lbk_ctx;
> > + ctx->addr = (uint8_t *)dev->addr;
> > +
> > + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> > TEST_MEM_ALIGN);
> > + if (!ctx->dsm_ptr) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> > + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->src_ptr) {
> > + ret = -ENOMEM;
> > + goto release;
>
> If ctx->src_ptr alloc fail, he_lbk_ctx_release() can work?
>
He_lbk_ctx_release() can work correct in failure situation, but it's not standard exception handle, I will change it.
> > + }
> > + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> > + if (ctx->src_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->dest_ptr) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> > + if (ctx->dest_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->status_ptr = (struct he_lbk_dsm_status *)ctx->dsm_ptr;
> > + return 0;
> > +
> > +release:
> > + he_lbk_ctx_release(dev);
> > + return ret;
> > +}
> > +
> > +static int he_lbk_init(struct afu_mf_rawdev *dev) {
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv) {
> > + dev->priv = rte_zmalloc(NULL, sizeof(struct he_lbk_priv), 0);
> > + if (!dev->priv)
> > + return -ENOMEM;
> > + }
> > +
> > + return he_lbk_ctx_init(dev);
> > +}
> > +
> > +static int he_lbk_config(struct afu_mf_rawdev *dev, void *config,
> > + size_t config_size)
> > +{
> > + struct he_lbk_priv *priv = NULL;
> > + struct rte_pmd_afu_he_lbk_cfg *cfg = NULL;
> > +
> > + if (!dev || !config || !config_size)
> > + return -EINVAL;
> > +
> > + priv = (struct he_lbk_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (config_size != sizeof(struct rte_pmd_afu_he_lbk_cfg))
> > + return -EINVAL;
> > +
> > + cfg = (struct rte_pmd_afu_he_lbk_cfg *)config;
> > + if (cfg->mode > NLB_MODE_TRPUT)
> > + return -EINVAL;
> > + if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
> > + (cfg->multi_cl != 4))
> > + return -EINVAL;
> > + if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin >
> > MAX_CACHE_LINES))
> > + return -EINVAL;
> > + if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
> > + return -EINVAL;
> > +
> > + rte_memcpy(&priv->he_lbk_cfg, cfg, sizeof(priv->he_lbk_cfg));
> > +
> > + return 0;
> > +}
> > +
> > +static int he_lbk_close(struct afu_mf_rawdev *dev) {
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + he_lbk_ctx_release(dev);
> > +
> > + rte_free(dev->priv);
> > + dev->priv = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int he_lbk_dump(struct afu_mf_rawdev *dev, FILE *f) {
> > + struct he_lbk_priv *priv = NULL;
> > + struct he_lbk_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_lbk_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (!f)
> > + f = stdout;
> > +
> > + ctx = &priv->he_lbk_ctx;
> > +
> > + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> > + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> > + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> > + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> > + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> > + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> > + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> > + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_mf_ops he_lbk_ops = {
> > + .init = he_lbk_init,
> > + .config = he_lbk_config,
> > + .start = NULL,
> > + .stop = NULL,
> > + .test = he_lbk_test,
> > + .close = he_lbk_close,
> > + .dump = he_lbk_dump,
> > + .reset = NULL
> > +};
> > +
> > +struct afu_mf_drv he_lbk_drv = {
> > + .uuid = { HE_LBK_UUID_L, HE_LBK_UUID_H },
> > + .ops = &he_lbk_ops
> > +};
> > +
> > +struct afu_mf_drv he_mem_lbk_drv = {
> > + .uuid = { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> > + .ops = &he_lbk_ops
> > +};
> > diff --git a/drivers/raw/afu_mf/he_lbk.h b/drivers/raw/afu_mf/he_lbk.h
> > new file mode 100644 index 0000000..c2e8a29
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/he_lbk.h
> > @@ -0,0 +1,121 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation */
> > +
> > +#ifndef _HE_LBK_H_
> > +#define _HE_LBK_H_
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "rte_pmd_afu.h"
> > +
> > +#define HE_LBK_UUID_L 0xb94b12284c31e02b
> > +#define HE_LBK_UUID_H 0x56e203e9864f49a7
> > +#define HE_MEM_LBK_UUID_L 0xbb652a578330a8eb #define
> > HE_MEM_LBK_UUID_H
> > +0x8568ab4e6ba54616
> > +
> > +extern struct afu_mf_drv he_lbk_drv;
> > +extern struct afu_mf_drv he_mem_lbk_drv;
> > +
> > +/* HE-LBK & HE-MEM-LBK registers definition */
> > +#define CSR_SCRATCHPAD0 0x100
> > +#define CSR_SCRATCHPAD1 0x108
> > +#define CSR_AFU_DSM_BASEL 0x110
> > +#define CSR_AFU_DSM_BASEH 0x114
> > +#define CSR_SRC_ADDR 0x120
> > +#define CSR_DST_ADDR 0x128
> > +#define CSR_NUM_LINES 0x130
> > +#define CSR_CTL 0x138
> > +#define CSR_CFG 0x140
> > +#define CSR_INACT_THRESH 0x148
> > +#define CSR_INTERRUPT0 0x150
> > +#define CSR_SWTEST_MSG 0x158
> > +#define CSR_STATUS0 0x160
> > +#define CSR_STATUS1 0x168
> > +#define CSR_ERROR 0x170
> > +#define CSR_STRIDE 0x178
> > +#define CSR_HE_INFO0 0x180
> > +
> > +#define DSM_SIZE 0x200000
> > +#define DSM_POLL_INTERVAL 5 /* ms */
> > +#define DSM_TIMEOUT 1000 /* ms */
> > +
> > +#define NLB_BUF_SIZE 0x400000
> > +#define TEST_MEM_ALIGN 1024
> > +
> > +struct he_lbk_csr_ctl {
> > + union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t reset:1;
> > + uint32_t start:1;
> > + uint32_t force_completion:1;
> > + uint32_t reserved:29;
> > + };
> > + };
> > +};
> > +
> > +struct he_lbk_csr_cfg {
> > + union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t rsvd1:1;
> > + uint32_t cont:1;
> > + uint32_t mode:3;
> > + uint32_t multicl_len:2;
> > + uint32_t rsvd2:13;
> > + uint32_t trput_interleave:3;
> > + uint32_t test_cfg:5;
> > + uint32_t interrupt_on_error:1;
> > + uint32_t interrupt_testmode:1;
> > + uint32_t rsvd3:2;
> > + };
> > + };
> > +};
> > +
> > +struct he_lbk_status0 {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t num_writes;
> > + uint32_t num_reads;
> > + };
> > + };
> > +};
> > +
> > +struct he_lbk_status1 {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t num_pend_writes;
> > + uint32_t num_pend_reads;
> > + };
> > + };
> > +};
> > +
> > +struct he_lbk_dsm_status {
> > + uint32_t test_complete;
> > + uint32_t test_error;
> > + uint64_t num_clocks;
> > + uint32_t num_reads;
> > + uint32_t num_writes;
> > + uint32_t start_overhead;
> > + uint32_t end_overhead;
> > +};
> > +
> > +struct he_lbk_ctx {
> > + uint8_t *addr;
> > + uint8_t *dsm_ptr;
> > + uint64_t dsm_iova;
> > + uint8_t *src_ptr;
> > + uint64_t src_iova;
> > + uint8_t *dest_ptr;
> > + uint64_t dest_iova;
> > + struct he_lbk_dsm_status *status_ptr; };
> > +
> > +struct he_lbk_priv {
> > + struct rte_pmd_afu_he_lbk_cfg he_lbk_cfg;
> > + struct he_lbk_ctx he_lbk_ctx;
> > +};
> > +
> > +#endif /* _HE_LBK_H_ */
> > diff --git a/drivers/raw/afu_mf/meson.build
> > b/drivers/raw/afu_mf/meson.build index 8a989e3..a983f53 100644
> > --- a/drivers/raw/afu_mf/meson.build
> > +++ b/drivers/raw/afu_mf/meson.build
> > @@ -2,6 +2,6 @@
> > # Copyright 2022 Intel Corporation
> >
> > deps += ['rawdev', 'bus_pci', 'bus_ifpga'] -sources =
> > files('afu_mf_rawdev.c',
> > 'n3000_afu.c')
> > +sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c')
> >
> > headers = files('rte_pmd_afu.h')
> > diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> > b/drivers/raw/afu_mf/rte_pmd_afu.h
> > index f14a053..658df55 100644
> > --- a/drivers/raw/afu_mf/rte_pmd_afu.h
> > +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> > @@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
> > };
> > };
> >
> > +/**
> > + * HE-LBK & HE-MEM-LBK AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_he_lbk_cfg {
> > + uint32_t mode;
> > + uint32_t begin;
> > + uint32_t end;
> > + uint32_t multi_cl;
> > + uint32_t cont;
> > + uint32_t timeout;
> > + uint32_t trput_interleave;
> > + uint32_t freq_mhz;
> > +};
> > +
> > #ifdef __cplusplus
> > }
> > #endif
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v5 4/5] raw/afu_mf: add HE-MEM AFU driver
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
` (2 preceding siblings ...)
2022-05-27 5:37 ` [PATCH v5 3/5] raw/afu_mf: add HE-LBK " Wei Huang
@ 2022-05-27 5:37 ` Wei Huang
2022-06-06 6:36 ` Zhang, Tianfei
2022-05-27 5:37 ` [PATCH v5 5/5] raw/afu_mf: add HE-HSSI " Wei Huang
` (2 subsequent siblings)
6 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-05-27 5:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-MEM is one of the host exerciser modules in OFS FPGA,
which is used to test local memory with built-in traffic
generator.
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 3 +
drivers/raw/afu_mf/he_mem.c | 181 +++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/he_mem.h | 40 ++++++++
drivers/raw/afu_mf/meson.build | 2 +-
drivers/raw/afu_mf/rte_pmd_afu.h | 7 ++
5 files changed, 232 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/afu_mf/he_mem.c
create mode 100644 drivers/raw/afu_mf/he_mem.h
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
index e91eb21..a56f60e 100644
--- a/drivers/raw/afu_mf/afu_mf_rawdev.c
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -21,6 +21,7 @@
#include "afu_mf_rawdev.h"
#include "n3000_afu.h"
#include "he_lbk.h"
+#include "he_mem.h"
#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
@@ -28,6 +29,7 @@
{ N3000_AFU_UUID_L, N3000_AFU_UUID_H },
{ HE_LBK_UUID_L, HE_LBK_UUID_H },
{ HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
+ { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
{ 0, 0 /* sentinel */ }
};
@@ -35,6 +37,7 @@
&n3000_afu_drv,
&he_lbk_drv,
&he_mem_lbk_drv,
+ &he_mem_tg_drv,
NULL
};
diff --git a/drivers/raw/afu_mf/he_mem.c b/drivers/raw/afu_mf/he_mem.c
new file mode 100644
index 0000000..ccbb3a8
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.c
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_mem.h"
+
+static int he_mem_tg_test(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ AFU_MF_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_mf_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
diff --git a/drivers/raw/afu_mf/he_mem.h b/drivers/raw/afu_mf/he_mem.h
new file mode 100644
index 0000000..82404b6
--- /dev/null
+++ b/drivers/raw/afu_mf/he_mem.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_MEM_H_
+#define _HE_MEM_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+extern struct afu_mf_drv he_mem_tg_drv;
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#endif /* _HE_MEM_H_ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
index a983f53..b53a31b 100644
--- a/drivers/raw/afu_mf/meson.build
+++ b/drivers/raw/afu_mf/meson.build
@@ -2,6 +2,6 @@
# Copyright 2022 Intel Corporation
deps += ['rawdev', 'bus_pci', 'bus_ifpga']
-sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c')
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c')
headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
index 658df55..2f92f7e 100644
--- a/drivers/raw/afu_mf/rte_pmd_afu.h
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -104,6 +104,13 @@ struct rte_pmd_afu_he_lbk_cfg {
uint32_t freq_mhz;
};
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 4/5] raw/afu_mf: add HE-MEM AFU driver
2022-05-27 5:37 ` [PATCH v5 4/5] raw/afu_mf: add HE-MEM " Wei Huang
@ 2022-06-06 6:36 ` Zhang, Tianfei
2022-06-07 2:43 ` Huang, Wei
0 siblings, 1 reply; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-06 6:36 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Friday, May 27, 2022 1:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v5 4/5] raw/afu_mf: add HE-MEM AFU driver
>
> HE-MEM is one of the host exerciser modules in OFS FPGA, which is used to test
> local memory with built-in traffic generator.
> This driver initialize the module and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> drivers/raw/afu_mf/afu_mf_rawdev.c | 3 +
> drivers/raw/afu_mf/he_mem.c | 181
> +++++++++++++++++++++++++++++++++++++
> drivers/raw/afu_mf/he_mem.h | 40 ++++++++
> drivers/raw/afu_mf/meson.build | 2 +-
> drivers/raw/afu_mf/rte_pmd_afu.h | 7 ++
> 5 files changed, 232 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/afu_mf/he_mem.c create mode 100644
> drivers/raw/afu_mf/he_mem.h
>
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> b/drivers/raw/afu_mf/afu_mf_rawdev.c
> index e91eb21..a56f60e 100644
> --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> @@ -21,6 +21,7 @@
> #include "afu_mf_rawdev.h"
> #include "n3000_afu.h"
> #include "he_lbk.h"
> +#include "he_mem.h"
>
> #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
>
> @@ -28,6 +29,7 @@
> { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> { HE_LBK_UUID_L, HE_LBK_UUID_H },
> { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> + { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> { 0, 0 /* sentinel */ }
> };
>
> @@ -35,6 +37,7 @@
> &n3000_afu_drv,
> &he_lbk_drv,
> &he_mem_lbk_drv,
> + &he_mem_tg_drv,
> NULL
> };
>
> diff --git a/drivers/raw/afu_mf/he_mem.c b/drivers/raw/afu_mf/he_mem.c
> new file mode 100644 index 0000000..ccbb3a8
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_mem.c
> @@ -0,0 +1,181 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "he_mem.h"
> +
> +static int he_mem_tg_test(struct afu_mf_rawdev *dev) {
> + struct he_mem_tg_priv *priv = NULL;
> + struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> + uint64_t value = 0x12345678;
> + uint64_t cap = 0;
> + uint64_t channel_mask = 0;
> + int i, t = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_mem_tg_cfg;
> + ctx = &priv->he_mem_tg_ctx;
> +
> + AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
> +
> + rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
> + cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
> + AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
> + if (cap != value) {
> + AFU_MF_PMD_ERR("Test scratchpad register failed");
> + return -EIO;
> + }
> +
> + cap = rte_read64(ctx->addr + MEM_TG_CTRL);
> + AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
> +
> + channel_mask = cfg->channel_mask & cap;
> + /* start traffic generators */
> + rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
> +
> + /* check test status */
> + while (t < MEM_TG_TIMEOUT_MS) {
> + value = rte_read64(ctx->addr + MEM_TG_STAT);
> + for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
> + if (channel_mask & (1 << i)) {
> + if (TGACTIVE(value, i))
> + continue;
> + printf("TG channel %d test %s\n", i,
> + TGPASS(value, i) ? "pass" :
> + TGTIMEOUT(value, i) ? "timeout" :
> + TGFAIL(value, i) ? "fail" : "error");
> + channel_mask &= ~(1 << i);
> + }
> + }
> + if (!channel_mask)
> + break;
> + rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
> + t += MEM_TG_POLL_INTERVAL_MS;
> + }
> +
> + if (channel_mask) {
> + AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
> + return channel_mask;
> + }
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_init(struct afu_mf_rawdev *dev) {
> + struct he_mem_tg_priv *priv = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv) {
> + priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
> + if (!priv)
> + return -ENOMEM;
> + dev->priv = priv;
> + }
> +
> + ctx = &priv->he_mem_tg_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_mem_tg_priv *priv = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv-
> >he_mem_tg_cfg));
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_close(struct afu_mf_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f) {
> + struct he_mem_tg_priv *priv = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_mem_tg_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops he_mem_tg_ops = {
> + .init = he_mem_tg_init,
> + .config = he_mem_tg_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_mem_tg_test,
> + .close = he_mem_tg_close,
> + .dump = he_mem_tg_dump,
> + .reset = NULL
> +};
> +
> +struct afu_mf_drv he_mem_tg_drv = {
> + .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> + .ops = &he_mem_tg_ops
> +};
> diff --git a/drivers/raw/afu_mf/he_mem.h b/drivers/raw/afu_mf/he_mem.h
> new file mode 100644 index 0000000..82404b6
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_mem.h
> @@ -0,0 +1,40 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _HE_MEM_H_
> +#define _HE_MEM_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb #define
> HE_MEM_TG_UUID_H
> +0x4dadea342c7848cb
> +
> +#define NUM_MEM_TG_CHANNELS 4
> +#define MEM_TG_TIMEOUT_MS 5000
> +#define MEM_TG_POLL_INTERVAL_MS 10
> +
> +extern struct afu_mf_drv he_mem_tg_drv;
> +
> +/* MEM-TG registers definition */
> +#define MEM_TG_SCRATCHPAD 0x28
> +#define MEM_TG_CTRL 0x30
> +#define TGCONTROL(n) (1 << (n))
> +#define MEM_TG_STAT 0x38
> +#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
> +#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
> +#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
> +#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
> +#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
> +
> +struct he_mem_tg_ctx {
> + uint8_t *addr;
> +};
> +
> +struct he_mem_tg_priv {
> + struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
> + struct he_mem_tg_ctx he_mem_tg_ctx;
> +};
> +
> +#endif /* _HE_MEM_H_ */
> diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
> index a983f53..b53a31b 100644
> --- a/drivers/raw/afu_mf/meson.build
> +++ b/drivers/raw/afu_mf/meson.build
> @@ -2,6 +2,6 @@
> # Copyright 2022 Intel Corporation
>
> deps += ['rawdev', 'bus_pci', 'bus_ifpga'] -sources = files('afu_mf_rawdev.c',
> 'n3000_afu.c', 'he_lbk.c')
> +sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c',
> +'he_mem.c')
>
> headers = files('rte_pmd_afu.h')
> diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> b/drivers/raw/afu_mf/rte_pmd_afu.h
> index 658df55..2f92f7e 100644
> --- a/drivers/raw/afu_mf/rte_pmd_afu.h
> +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> @@ -104,6 +104,13 @@ struct rte_pmd_afu_he_lbk_cfg {
> uint32_t freq_mhz;
> };
>
> +/**
> + * HE-MEM-TG AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_mem_tg_cfg {
> + uint32_t channel_mask; /* mask of traffic generator channel */
> +};
> +
> #ifdef __cplusplus
> }
> #endif
The file name change to "afu_pmd_he_mem.c" is better?
Other part is good for me, you can add:
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 4/5] raw/afu_mf: add HE-MEM AFU driver
2022-06-06 6:36 ` Zhang, Tianfei
@ 2022-06-07 2:43 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 2:43 UTC (permalink / raw)
To: Zhang, Tianfei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 14:37
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 4/5] raw/afu_mf: add HE-MEM AFU driver
>
>
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Friday, May 27, 2022 1:37 PM
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> > Wei <wei.huang@intel.com>
> > Subject: [PATCH v5 4/5] raw/afu_mf: add HE-MEM AFU driver
> >
> > HE-MEM is one of the host exerciser modules in OFS FPGA, which is used
> > to test local memory with built-in traffic generator.
> > This driver initialize the module and report test result.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > drivers/raw/afu_mf/afu_mf_rawdev.c | 3 +
> > drivers/raw/afu_mf/he_mem.c | 181
> > +++++++++++++++++++++++++++++++++++++
> > drivers/raw/afu_mf/he_mem.h | 40 ++++++++
> > drivers/raw/afu_mf/meson.build | 2 +-
> > drivers/raw/afu_mf/rte_pmd_afu.h | 7 ++
> > 5 files changed, 232 insertions(+), 1 deletion(-) create mode 100644
> > drivers/raw/afu_mf/he_mem.c create mode 100644
> > drivers/raw/afu_mf/he_mem.h
> >
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > index e91eb21..a56f60e 100644
> > --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > @@ -21,6 +21,7 @@
> > #include "afu_mf_rawdev.h"
> > #include "n3000_afu.h"
> > #include "he_lbk.h"
> > +#include "he_mem.h"
> >
> > #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> >
> > @@ -28,6 +29,7 @@
> > { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> > { HE_LBK_UUID_L, HE_LBK_UUID_H },
> > { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> > + { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> > { 0, 0 /* sentinel */ }
> > };
> >
> > @@ -35,6 +37,7 @@
> > &n3000_afu_drv,
> > &he_lbk_drv,
> > &he_mem_lbk_drv,
> > + &he_mem_tg_drv,
> > NULL
> > };
> >
> > diff --git a/drivers/raw/afu_mf/he_mem.c
> b/drivers/raw/afu_mf/he_mem.c
> > new file mode 100644 index 0000000..ccbb3a8
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/he_mem.c
> > @@ -0,0 +1,181 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation */
> > +
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +#include <sys/ioctl.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memcpy.h>
> > +#include <rte_io.h>
> > +#include <rte_vfio.h>
> > +#include <rte_bus_pci.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "he_mem.h"
> > +
> > +static int he_mem_tg_test(struct afu_mf_rawdev *dev) {
> > + struct he_mem_tg_priv *priv = NULL;
> > + struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
> > + struct he_mem_tg_ctx *ctx = NULL;
> > + uint64_t value = 0x12345678;
> > + uint64_t cap = 0;
> > + uint64_t channel_mask = 0;
> > + int i, t = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_mem_tg_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + cfg = &priv->he_mem_tg_cfg;
> > + ctx = &priv->he_mem_tg_ctx;
> > +
> > + AFU_MF_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
> > +
> > + rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
> > + cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
> > + AFU_MF_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
> > + if (cap != value) {
> > + AFU_MF_PMD_ERR("Test scratchpad register failed");
> > + return -EIO;
> > + }
> > +
> > + cap = rte_read64(ctx->addr + MEM_TG_CTRL);
> > + AFU_MF_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
> > +
> > + channel_mask = cfg->channel_mask & cap;
> > + /* start traffic generators */
> > + rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
> > +
> > + /* check test status */
> > + while (t < MEM_TG_TIMEOUT_MS) {
> > + value = rte_read64(ctx->addr + MEM_TG_STAT);
> > + for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
> > + if (channel_mask & (1 << i)) {
> > + if (TGACTIVE(value, i))
> > + continue;
> > + printf("TG channel %d test %s\n", i,
> > + TGPASS(value, i) ? "pass" :
> > + TGTIMEOUT(value, i) ? "timeout" :
> > + TGFAIL(value, i) ? "fail" : "error");
> > + channel_mask &= ~(1 << i);
> > + }
> > + }
> > + if (!channel_mask)
> > + break;
> > + rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
> > + t += MEM_TG_POLL_INTERVAL_MS;
> > + }
> > +
> > + if (channel_mask) {
> > + AFU_MF_PMD_ERR("Timeout 0x%04lx", (unsigned
> long)value);
> > + return channel_mask;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int he_mem_tg_init(struct afu_mf_rawdev *dev) {
> > + struct he_mem_tg_priv *priv = NULL;
> > + struct he_mem_tg_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_mem_tg_priv *)dev->priv;
> > + if (!priv) {
> > + priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
> > + if (!priv)
> > + return -ENOMEM;
> > + dev->priv = priv;
> > + }
> > +
> > + ctx = &priv->he_mem_tg_ctx;
> > + ctx->addr = (uint8_t *)dev->addr;
> > +
> > + return 0;
> > +}
> > +
> > +static int he_mem_tg_config(struct afu_mf_rawdev *dev, void *config,
> > + size_t config_size)
> > +{
> > + struct he_mem_tg_priv *priv = NULL;
> > +
> > + if (!dev || !config || !config_size)
> > + return -EINVAL;
> > +
> > + priv = (struct he_mem_tg_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
> > + return -EINVAL;
> > +
> > + rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv-
> > >he_mem_tg_cfg));
> > +
> > + return 0;
> > +}
> > +
> > +static int he_mem_tg_close(struct afu_mf_rawdev *dev) {
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + rte_free(dev->priv);
> > + dev->priv = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int he_mem_tg_dump(struct afu_mf_rawdev *dev, FILE *f) {
> > + struct he_mem_tg_priv *priv = NULL;
> > + struct he_mem_tg_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_mem_tg_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (!f)
> > + f = stdout;
> > +
> > + ctx = &priv->he_mem_tg_ctx;
> > +
> > + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_mf_ops he_mem_tg_ops = {
> > + .init = he_mem_tg_init,
> > + .config = he_mem_tg_config,
> > + .start = NULL,
> > + .stop = NULL,
> > + .test = he_mem_tg_test,
> > + .close = he_mem_tg_close,
> > + .dump = he_mem_tg_dump,
> > + .reset = NULL
> > +};
> > +
> > +struct afu_mf_drv he_mem_tg_drv = {
> > + .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> > + .ops = &he_mem_tg_ops
> > +};
> > diff --git a/drivers/raw/afu_mf/he_mem.h
> b/drivers/raw/afu_mf/he_mem.h
> > new file mode 100644 index 0000000..82404b6
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/he_mem.h
> > @@ -0,0 +1,40 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation */
> > +
> > +#ifndef _HE_MEM_H_
> > +#define _HE_MEM_H_
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "rte_pmd_afu.h"
> > +
> > +#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb #define
> > HE_MEM_TG_UUID_H
> > +0x4dadea342c7848cb
> > +
> > +#define NUM_MEM_TG_CHANNELS 4
> > +#define MEM_TG_TIMEOUT_MS 5000
> > +#define MEM_TG_POLL_INTERVAL_MS 10
> > +
> > +extern struct afu_mf_drv he_mem_tg_drv;
> > +
> > +/* MEM-TG registers definition */
> > +#define MEM_TG_SCRATCHPAD 0x28
> > +#define MEM_TG_CTRL 0x30
> > +#define TGCONTROL(n) (1 << (n))
> > +#define MEM_TG_STAT 0x38
> > +#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
> > +#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
> > +#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
> > +#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
> > +#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
> > +
> > +struct he_mem_tg_ctx {
> > + uint8_t *addr;
> > +};
> > +
> > +struct he_mem_tg_priv {
> > + struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
> > + struct he_mem_tg_ctx he_mem_tg_ctx;
> > +};
> > +
> > +#endif /* _HE_MEM_H_ */
> > diff --git a/drivers/raw/afu_mf/meson.build
> > b/drivers/raw/afu_mf/meson.build index a983f53..b53a31b 100644
> > --- a/drivers/raw/afu_mf/meson.build
> > +++ b/drivers/raw/afu_mf/meson.build
> > @@ -2,6 +2,6 @@
> > # Copyright 2022 Intel Corporation
> >
> > deps += ['rawdev', 'bus_pci', 'bus_ifpga'] -sources =
> > files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c')
> > +sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c',
> > +'he_mem.c')
> >
> > headers = files('rte_pmd_afu.h')
> > diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> > b/drivers/raw/afu_mf/rte_pmd_afu.h
> > index 658df55..2f92f7e 100644
> > --- a/drivers/raw/afu_mf/rte_pmd_afu.h
> > +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> > @@ -104,6 +104,13 @@ struct rte_pmd_afu_he_lbk_cfg {
> > uint32_t freq_mhz;
> > };
> >
> > +/**
> > + * HE-MEM-TG AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_he_mem_tg_cfg {
> > + uint32_t channel_mask; /* mask of traffic generator channel */
> > +};
> > +
> > #ifdef __cplusplus
> > }
> > #endif
>
> The file name change to "afu_pmd_he_mem.c" is better?
agree
> Other part is good for me, you can add:
> Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
>
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v5 5/5] raw/afu_mf: add HE-HSSI AFU driver
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
` (3 preceding siblings ...)
2022-05-27 5:37 ` [PATCH v5 4/5] raw/afu_mf: add HE-MEM " Wei Huang
@ 2022-05-27 5:37 ` Wei Huang
2022-06-06 6:39 ` Zhang, Tianfei
2022-06-06 1:47 ` [PATCH v5 0/5] introduce afu_mf raw device driver Zhang, Tianfei
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
6 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-05-27 5:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-HSSI is one of the host exerciser modules in OFS FPGA,
which is used to test HSSI (High Speed Serial Interface).
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/afu_mf/afu_mf_rawdev.c | 3 +
drivers/raw/afu_mf/he_hssi.c | 369 +++++++++++++++++++++++++++++++++++++
drivers/raw/afu_mf/he_hssi.h | 102 ++++++++++
drivers/raw/afu_mf/meson.build | 3 +-
drivers/raw/afu_mf/rte_pmd_afu.h | 16 ++
5 files changed, 492 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/afu_mf/he_hssi.c
create mode 100644 drivers/raw/afu_mf/he_hssi.h
diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c b/drivers/raw/afu_mf/afu_mf_rawdev.c
index a56f60e..f24c748 100644
--- a/drivers/raw/afu_mf/afu_mf_rawdev.c
+++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
@@ -22,6 +22,7 @@
#include "n3000_afu.h"
#include "he_lbk.h"
#include "he_mem.h"
+#include "he_hssi.h"
#define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
@@ -30,6 +31,7 @@
{ HE_LBK_UUID_L, HE_LBK_UUID_H },
{ HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
{ HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
{ 0, 0 /* sentinel */ }
};
@@ -38,6 +40,7 @@
&he_lbk_drv,
&he_mem_lbk_drv,
&he_mem_tg_drv,
+ &he_hssi_drv,
NULL
};
diff --git a/drivers/raw/afu_mf/he_hssi.c b/drivers/raw/afu_mf/he_hssi.c
new file mode 100644
index 0000000..bedafbd
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.c
@@ -0,0 +1,369 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_mf_rawdev.h"
+#include "he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ AFU_MF_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < 3; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_mf_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_mf_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_mf_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_mf_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
diff --git a/drivers/raw/afu_mf/he_hssi.h b/drivers/raw/afu_mf/he_hssi.h
new file mode 100644
index 0000000..f8b9623
--- /dev/null
+++ b/drivers/raw/afu_mf/he_hssi.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _HE_HSSI_H_
+#define _HE_HSSI_H_
+
+#include "afu_mf_rawdev.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+extern struct afu_mf_drv he_hssi_drv;
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#endif /* _HE_HSSI_H_ */
diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
index b53a31b..f304bc8 100644
--- a/drivers/raw/afu_mf/meson.build
+++ b/drivers/raw/afu_mf/meson.build
@@ -2,6 +2,7 @@
# Copyright 2022 Intel Corporation
deps += ['rawdev', 'bus_pci', 'bus_ifpga']
-sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c')
+sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
+ 'he_hssi.c')
headers = files('rte_pmd_afu.h')
diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h b/drivers/raw/afu_mf/rte_pmd_afu.h
index 2f92f7e..89d866a 100644
--- a/drivers/raw/afu_mf/rte_pmd_afu.h
+++ b/drivers/raw/afu_mf/rte_pmd_afu.h
@@ -111,6 +111,22 @@ struct rte_pmd_afu_he_mem_tg_cfg {
uint32_t channel_mask; /* mask of traffic generator channel */
};
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[3];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 5/5] raw/afu_mf: add HE-HSSI AFU driver
2022-05-27 5:37 ` [PATCH v5 5/5] raw/afu_mf: add HE-HSSI " Wei Huang
@ 2022-06-06 6:39 ` Zhang, Tianfei
2022-06-07 2:44 ` Huang, Wei
0 siblings, 1 reply; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-06 6:39 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Friday, May 27, 2022 1:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v5 5/5] raw/afu_mf: add HE-HSSI AFU driver
>
> HE-HSSI is one of the host exerciser modules in OFS FPGA, which is used to test
> HSSI (High Speed Serial Interface).
> This driver initialize the module and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> drivers/raw/afu_mf/afu_mf_rawdev.c | 3 +
> drivers/raw/afu_mf/he_hssi.c | 369
The filename change to "afu_pmd_he_hssi.c" is better?
> +++++++++++++++++++++++++++++++++++++
> drivers/raw/afu_mf/he_hssi.h | 102 ++++++++++
> drivers/raw/afu_mf/meson.build | 3 +-
> drivers/raw/afu_mf/rte_pmd_afu.h | 16 ++
> 5 files changed, 492 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/afu_mf/he_hssi.c create mode 100644
> drivers/raw/afu_mf/he_hssi.h
>
> diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> b/drivers/raw/afu_mf/afu_mf_rawdev.c
> index a56f60e..f24c748 100644
> --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> @@ -22,6 +22,7 @@
> #include "n3000_afu.h"
> #include "he_lbk.h"
> #include "he_mem.h"
> +#include "he_hssi.h"
>
> #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
>
> @@ -30,6 +31,7 @@
> { HE_LBK_UUID_L, HE_LBK_UUID_H },
> { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> + { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> { 0, 0 /* sentinel */ }
> };
>
> @@ -38,6 +40,7 @@
> &he_lbk_drv,
> &he_mem_lbk_drv,
> &he_mem_tg_drv,
> + &he_hssi_drv,
> NULL
> };
>
> diff --git a/drivers/raw/afu_mf/he_hssi.c b/drivers/raw/afu_mf/he_hssi.c new
> file mode 100644 index 0000000..bedafbd
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_hssi.c
> @@ -0,0 +1,369 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_mf_rawdev.h"
> +#include "he_hssi.h"
> +
> +static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr,
> value);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + data.write_data = value;
> + rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
> +
> + cmd.csr = 0;
> + cmd.write_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + return 0;
> +}
> +
> +static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t *value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + cmd.csr = 0;
> + cmd.read_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans) {
> + data.csr = rte_read64(ctx->addr +
> TRAFFIC_CTRL_DATA);
> + *value = data.read_data;
> + break;
> + }
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr,
> *value);
> + return 0;
> +}
> +
> +static void he_hssi_report(struct he_hssi_ctx *ctx) {
> + uint32_t val = 0;
> + uint64_t v64 = 0;
> + int ret = 0;
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
> + if (ret)
> + return;
> + printf("Number of good packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
> + if (ret)
> + return;
> + printf("Number of bad packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
> + if (ret)
> + return;
> + v64 = val;
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
> + if (ret)
> + return;
> + v64 = (v64 << 32) | val;
> + printf("Number of bytes received: %"PRIu64"\n", v64);
> +
> + ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
> + if (ret)
> + return;
> + if (val & ERR_VALID) {
> + printf("AVST rx error:");
> + if (val & OVERFLOW_ERR)
> + printf(" overflow");
> + if (val & LENGTH_ERR)
> + printf(" length");
> + if (val & OVERSIZE_ERR)
> + printf(" oversize");
> + if (val & UNDERSIZE_ERR)
> + printf(" undersize");
> + if (val & MAC_CRC_ERR)
> + printf(" crc");
> + if (val & PHY_ERR)
> + printf(" phy");
> + printf("\n");
> + }
> +
> + ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
> + if (ret)
> + return;
> + if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
> + printf("FIFO status:");
> + if (val & ALMOST_EMPTY)
> + printf(" almost empty");
> + if (val & ALMOST_FULL)
> + printf(" almost full");
> + printf("\n");
> + }
> +}
> +
> +static int he_hssi_test(struct afu_mf_rawdev *dev) {
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> + struct traffic_ctrl_ch_sel sel;
> + uint32_t val = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_hssi_cfg;
> + ctx = &priv->he_hssi_ctx;
> +
> + ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
> + if (ret)
> + return ret;
> +
> + sel.channel_sel = cfg->port;
> + rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
> +
> + if (cfg->he_loopback >= 0) {
> + val = cfg->he_loopback ? 1 : 0;
> + AFU_MF_PMD_INFO("%s HE loopback on port %u",
> + val ? "Enable" : "Disable", cfg->port);
> + return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
> + if (ret)
> + return ret;
> +
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
> + if (ret)
> + return ret;
> +
> + val = cfg->src_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->src_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->dest_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->dest_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_length ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_payload ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
> + if (ret)
> + return ret;
> +
> + for (i = 0; i < 3; i++) {
What meaning of "3" ?
> + ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
> + cfg->rnd_seed[i]);
> + if (ret)
> + return ret;
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
> + if (ret)
> + return ret;
> +
> + while (i++ < cfg->timeout) {
> + ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
> + if (ret)
> + break;
> + if (val == cfg->num_packets)
> + break;
> + sleep(1);
> + }
> +
> + he_hssi_report(ctx);
> +
> + return ret;
> +}
> +
> +static int he_hssi_init(struct afu_mf_rawdev *dev) {
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv) {
> + priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
> + if (!priv)
> + return -ENOMEM;
> + dev->priv = priv;
> + }
> +
> + ctx = &priv->he_hssi_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + return 0;
> +}
> +
> +static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
> + if (cfg->port >= NUM_HE_HSSI_PORTS)
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
> +
> + return 0;
> +}
> +
> +static int he_hssi_close(struct afu_mf_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f) {
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_hssi_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> +
> + return 0;
> +}
> +
> +static struct afu_mf_ops he_hssi_ops = {
> + .init = he_hssi_init,
> + .config = he_hssi_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_hssi_test,
> + .close = he_hssi_close,
> + .dump = he_hssi_dump,
> + .reset = NULL
> +};
> +
> +struct afu_mf_drv he_hssi_drv = {
> + .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> + .ops = &he_hssi_ops
> +};
> diff --git a/drivers/raw/afu_mf/he_hssi.h b/drivers/raw/afu_mf/he_hssi.h new
> file mode 100644 index 0000000..f8b9623
> --- /dev/null
> +++ b/drivers/raw/afu_mf/he_hssi.h
> @@ -0,0 +1,102 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _HE_HSSI_H_
> +#define _HE_HSSI_H_
> +
> +#include "afu_mf_rawdev.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_HSSI_UUID_L 0xbb370242ac130002
> +#define HE_HSSI_UUID_H 0x823c334c98bf11ea
> +#define NUM_HE_HSSI_PORTS 8
> +
> +extern struct afu_mf_drv he_hssi_drv;
> +
> +/* HE-HSSI registers definition */
> +#define TRAFFIC_CTRL_CMD 0x30
> +#define TRAFFIC_CTRL_DATA 0x38
> +#define TRAFFIC_CTRL_CH_SEL 0x40
> +#define AFU_SCRATCHPAD 0x48
> +
> +#define TG_NUM_PKT 0x3c00
> +#define TG_PKT_LEN_TYPE 0x3c01
> +#define TG_DATA_PATTERN 0x3c02
> +#define TG_START_XFR 0x3c03
> +#define TG_STOP_XFR 0x3c04
> +#define TG_SRC_MAC_L 0x3c05
> +#define TG_SRC_MAC_H 0x3c06
> +#define TG_DST_MAC_L 0x3c07
> +#define TG_DST_MAC_H 0x3c08
> +#define TG_PKT_XFRD 0x3c09
> +#define TG_RANDOM_SEED(n) (0x3c0a + (n))
> +#define TG_PKT_LEN 0x3c0d
> +
> +#define TM_NUM_PKT 0x3d00
> +#define TM_PKT_GOOD 0x3d01
> +#define TM_PKT_BAD 0x3d02
> +#define TM_BYTE_CNT0 0x3d03
> +#define TM_BYTE_CNT1 0x3d04
> +#define TM_AVST_RX_ERR 0x3d07
> +#define OVERFLOW_ERR (1 << 9)
> +#define LENGTH_ERR (1 << 8)
> +#define OVERSIZE_ERR (1 << 7)
> +#define UNDERSIZE_ERR (1 << 6)
> +#define MAC_CRC_ERR (1 << 5)
> +#define PHY_ERR (1 << 4)
> +#define ERR_VALID (1 << 3)
> +
> +#define LOOPBACK_EN 0x3e00
> +#define LOOPBACK_FIFO_STATUS 0x3e01
> +#define ALMOST_EMPTY (1 << 1)
> +#define ALMOST_FULL (1 << 0)
> +
> +#define MAILBOX_TIMEOUT_MS 100
> +#define MAILBOX_POLL_INTERVAL_MS 10
> +
> +struct traffic_ctrl_cmd {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_cmd:1;
> + uint32_t write_cmd:1;
> + uint32_t ack_trans:1;
> + uint32_t rsvd1:29;
> + uint32_t afu_cmd_addr:16;
> + uint32_t rsvd2:16;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_data {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_data;
> + uint32_t write_data;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_ch_sel {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t channel_sel:3;
> + uint32_t rsvd1:29;
> + uint32_t rsvd2;
> + };
> + };
> +};
> +
> +struct he_hssi_ctx {
> + uint8_t *addr;
> +};
> +
> +struct he_hssi_priv {
> + struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
> + struct he_hssi_ctx he_hssi_ctx;
> +};
> +
> +#endif /* _HE_HSSI_H_ */
> diff --git a/drivers/raw/afu_mf/meson.build b/drivers/raw/afu_mf/meson.build
> index b53a31b..f304bc8 100644
> --- a/drivers/raw/afu_mf/meson.build
> +++ b/drivers/raw/afu_mf/meson.build
> @@ -2,6 +2,7 @@
> # Copyright 2022 Intel Corporation
>
> deps += ['rawdev', 'bus_pci', 'bus_ifpga'] -sources = files('afu_mf_rawdev.c',
> 'n3000_afu.c', 'he_lbk.c', 'he_mem.c')
> +sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
> + 'he_hssi.c')
>
> headers = files('rte_pmd_afu.h')
> diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> b/drivers/raw/afu_mf/rte_pmd_afu.h
> index 2f92f7e..89d866a 100644
> --- a/drivers/raw/afu_mf/rte_pmd_afu.h
> +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> @@ -111,6 +111,22 @@ struct rte_pmd_afu_he_mem_tg_cfg {
> uint32_t channel_mask; /* mask of traffic generator channel */
> };
>
> +/**
> + * HE-HSSI AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_hssi_cfg {
> + uint32_t port;
> + uint32_t timeout;
> + uint32_t num_packets;
> + uint32_t random_length;
> + uint32_t packet_length;
> + uint32_t random_payload;
> + uint32_t rnd_seed[3];
> + uint64_t src_addr;
> + uint64_t dest_addr;
> + int he_loopback;
> +};
> +
> #ifdef __cplusplus
> }
> #endif
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 5/5] raw/afu_mf: add HE-HSSI AFU driver
2022-06-06 6:39 ` Zhang, Tianfei
@ 2022-06-07 2:44 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 2:44 UTC (permalink / raw)
To: Zhang, Tianfei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 14:40
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 5/5] raw/afu_mf: add HE-HSSI AFU driver
>
>
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Friday, May 27, 2022 1:37 PM
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> > Wei <wei.huang@intel.com>
> > Subject: [PATCH v5 5/5] raw/afu_mf: add HE-HSSI AFU driver
> >
> > HE-HSSI is one of the host exerciser modules in OFS FPGA, which is
> > used to test HSSI (High Speed Serial Interface).
> > This driver initialize the module and report test result.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > drivers/raw/afu_mf/afu_mf_rawdev.c | 3 +
> > drivers/raw/afu_mf/he_hssi.c | 369
>
> The filename change to "afu_pmd_he_hssi.c" is better?
>
agree
> > +++++++++++++++++++++++++++++++++++++
> > drivers/raw/afu_mf/he_hssi.h | 102 ++++++++++
> > drivers/raw/afu_mf/meson.build | 3 +-
> > drivers/raw/afu_mf/rte_pmd_afu.h | 16 ++
> > 5 files changed, 492 insertions(+), 1 deletion(-) create mode 100644
> > drivers/raw/afu_mf/he_hssi.c create mode 100644
> > drivers/raw/afu_mf/he_hssi.h
> >
> > diff --git a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > index a56f60e..f24c748 100644
> > --- a/drivers/raw/afu_mf/afu_mf_rawdev.c
> > +++ b/drivers/raw/afu_mf/afu_mf_rawdev.c
> > @@ -22,6 +22,7 @@
> > #include "n3000_afu.h"
> > #include "he_lbk.h"
> > #include "he_mem.h"
> > +#include "he_hssi.h"
> >
> > #define AFU_MF_PMD_RAWDEV_NAME rawdev_afu_mf
> >
> > @@ -30,6 +31,7 @@
> > { HE_LBK_UUID_L, HE_LBK_UUID_H },
> > { HE_MEM_LBK_UUID_L, HE_MEM_LBK_UUID_H },
> > { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> > + { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> > { 0, 0 /* sentinel */ }
> > };
> >
> > @@ -38,6 +40,7 @@
> > &he_lbk_drv,
> > &he_mem_lbk_drv,
> > &he_mem_tg_drv,
> > + &he_hssi_drv,
> > NULL
> > };
> >
> > diff --git a/drivers/raw/afu_mf/he_hssi.c
> > b/drivers/raw/afu_mf/he_hssi.c new file mode 100644 index
> > 0000000..bedafbd
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/he_hssi.c
> > @@ -0,0 +1,369 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation */
> > +
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <inttypes.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +#include <sys/ioctl.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memcpy.h>
> > +#include <rte_io.h>
> > +#include <rte_vfio.h>
> > +#include <rte_bus_pci.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "he_hssi.h"
> > +
> > +static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
> > + uint32_t value)
> > +{
> > + struct traffic_ctrl_cmd cmd;
> > + struct traffic_ctrl_data data;
> > + uint32_t i = 0;
> > +
> > + AFU_MF_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr,
> > value);
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + data.write_data = value;
> > + rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
> > +
> > + cmd.csr = 0;
> > + cmd.write_cmd = 1;
> > + cmd.afu_cmd_addr = addr;
> > + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> > +
> > + while (i < MAILBOX_TIMEOUT_MS) {
> > + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> > + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> > + if (cmd.ack_trans)
> > + break;
> > + i += MAILBOX_POLL_INTERVAL_MS;
> > + }
> > + if (i >= MAILBOX_TIMEOUT_MS)
> > + return -ETIMEDOUT;
> > +
> > + i = 0;
> > + cmd.csr = 0;
> > + while (i < MAILBOX_TIMEOUT_MS) {
> > + cmd.ack_trans = 1;
> > + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> > + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> > + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> > + if (!cmd.ack_trans)
> > + break;
> > + i += MAILBOX_POLL_INTERVAL_MS;
> > + }
> > + if (i >= MAILBOX_TIMEOUT_MS)
> > + return -ETIMEDOUT;
> > +
> > + return 0;
> > +}
> > +
> > +static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
> > + uint32_t *value)
> > +{
> > + struct traffic_ctrl_cmd cmd;
> > + struct traffic_ctrl_data data;
> > + uint32_t i = 0;
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + cmd.csr = 0;
> > + cmd.read_cmd = 1;
> > + cmd.afu_cmd_addr = addr;
> > + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> > +
> > + while (i < MAILBOX_TIMEOUT_MS) {
> > + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> > + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> > + if (cmd.ack_trans) {
> > + data.csr = rte_read64(ctx->addr +
> > TRAFFIC_CTRL_DATA);
> > + *value = data.read_data;
> > + break;
> > + }
> > + i += MAILBOX_POLL_INTERVAL_MS;
> > + }
> > + if (i >= MAILBOX_TIMEOUT_MS)
> > + return -ETIMEDOUT;
> > +
> > + i = 0;
> > + cmd.csr = 0;
> > + while (i < MAILBOX_TIMEOUT_MS) {
> > + cmd.ack_trans = 1;
> > + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> > + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> > + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> > + if (!cmd.ack_trans)
> > + break;
> > + i += MAILBOX_POLL_INTERVAL_MS;
> > + }
> > + if (i >= MAILBOX_TIMEOUT_MS)
> > + return -ETIMEDOUT;
> > +
> > + AFU_MF_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr,
> > *value);
> > + return 0;
> > +}
> > +
> > +static void he_hssi_report(struct he_hssi_ctx *ctx) {
> > + uint32_t val = 0;
> > + uint64_t v64 = 0;
> > + int ret = 0;
> > +
> > + ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
> > + if (ret)
> > + return;
> > + printf("Number of good packets received: %u\n", val);
> > +
> > + ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
> > + if (ret)
> > + return;
> > + printf("Number of bad packets received: %u\n", val);
> > +
> > + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
> > + if (ret)
> > + return;
> > + v64 = val;
> > + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
> > + if (ret)
> > + return;
> > + v64 = (v64 << 32) | val;
> > + printf("Number of bytes received: %"PRIu64"\n", v64);
> > +
> > + ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
> > + if (ret)
> > + return;
> > + if (val & ERR_VALID) {
> > + printf("AVST rx error:");
> > + if (val & OVERFLOW_ERR)
> > + printf(" overflow");
> > + if (val & LENGTH_ERR)
> > + printf(" length");
> > + if (val & OVERSIZE_ERR)
> > + printf(" oversize");
> > + if (val & UNDERSIZE_ERR)
> > + printf(" undersize");
> > + if (val & MAC_CRC_ERR)
> > + printf(" crc");
> > + if (val & PHY_ERR)
> > + printf(" phy");
> > + printf("\n");
> > + }
> > +
> > + ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
> > + if (ret)
> > + return;
> > + if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
> > + printf("FIFO status:");
> > + if (val & ALMOST_EMPTY)
> > + printf(" almost empty");
> > + if (val & ALMOST_FULL)
> > + printf(" almost full");
> > + printf("\n");
> > + }
> > +}
> > +
> > +static int he_hssi_test(struct afu_mf_rawdev *dev) {
> > + struct he_hssi_priv *priv = NULL;
> > + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> > + struct he_hssi_ctx *ctx = NULL;
> > + struct traffic_ctrl_ch_sel sel;
> > + uint32_t val = 0;
> > + uint32_t i = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_hssi_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + cfg = &priv->he_hssi_cfg;
> > + ctx = &priv->he_hssi_ctx;
> > +
> > + ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
> > + if (ret)
> > + return ret;
> > +
> > + sel.channel_sel = cfg->port;
> > + rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
> > +
> > + if (cfg->he_loopback >= 0) {
> > + val = cfg->he_loopback ? 1 : 0;
> > + AFU_MF_PMD_INFO("%s HE loopback on port %u",
> > + val ? "Enable" : "Disable", cfg->port);
> > + return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
> > + }
> > +
> > + ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
> > + if (ret)
> > + return ret;
> > +
> > + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
> > + if (ret)
> > + return ret;
> > +
> > + val = cfg->src_addr & 0xffffffff;
> > + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
> > + if (ret)
> > + return ret;
> > + val = (cfg->src_addr >> 32) & 0xffff;
> > + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
> > + if (ret)
> > + return ret;
> > +
> > + val = cfg->dest_addr & 0xffffffff;
> > + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
> > + if (ret)
> > + return ret;
> > + val = (cfg->dest_addr >> 32) & 0xffff;
> > + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
> > + if (ret)
> > + return ret;
> > +
> > + val = cfg->random_length ? 1 : 0;
> > + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
> > + if (ret)
> > + return ret;
> > +
> > + val = cfg->random_payload ? 1 : 0;
> > + ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
> > + if (ret)
> > + return ret;
> > +
> > + for (i = 0; i < 3; i++) {
>
> What meaning of "3" ?
>
There are three random seeds, I will use a micro to define it.
> > + ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
> > + cfg->rnd_seed[i]);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
> > + if (ret)
> > + return ret;
> > +
> > + while (i++ < cfg->timeout) {
> > + ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
> > + if (ret)
> > + break;
> > + if (val == cfg->num_packets)
> > + break;
> > + sleep(1);
> > + }
> > +
> > + he_hssi_report(ctx);
> > +
> > + return ret;
> > +}
> > +
> > +static int he_hssi_init(struct afu_mf_rawdev *dev) {
> > + struct he_hssi_priv *priv = NULL;
> > + struct he_hssi_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_hssi_priv *)dev->priv;
> > + if (!priv) {
> > + priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
> > + if (!priv)
> > + return -ENOMEM;
> > + dev->priv = priv;
> > + }
> > +
> > + ctx = &priv->he_hssi_ctx;
> > + ctx->addr = (uint8_t *)dev->addr;
> > +
> > + return 0;
> > +}
> > +
> > +static int he_hssi_config(struct afu_mf_rawdev *dev, void *config,
> > + size_t config_size)
> > +{
> > + struct he_hssi_priv *priv = NULL;
> > + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> > +
> > + if (!dev || !config || !config_size)
> > + return -EINVAL;
> > +
> > + priv = (struct he_hssi_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
> > + return -EINVAL;
> > +
> > + cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
> > + if (cfg->port >= NUM_HE_HSSI_PORTS)
> > + return -EINVAL;
> > +
> > + rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
> > +
> > + return 0;
> > +}
> > +
> > +static int he_hssi_close(struct afu_mf_rawdev *dev) {
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + rte_free(dev->priv);
> > + dev->priv = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int he_hssi_dump(struct afu_mf_rawdev *dev, FILE *f) {
> > + struct he_hssi_priv *priv = NULL;
> > + struct he_hssi_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct he_hssi_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (!f)
> > + f = stdout;
> > +
> > + ctx = &priv->he_hssi_ctx;
> > +
> > + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_mf_ops he_hssi_ops = {
> > + .init = he_hssi_init,
> > + .config = he_hssi_config,
> > + .start = NULL,
> > + .stop = NULL,
> > + .test = he_hssi_test,
> > + .close = he_hssi_close,
> > + .dump = he_hssi_dump,
> > + .reset = NULL
> > +};
> > +
> > +struct afu_mf_drv he_hssi_drv = {
> > + .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> > + .ops = &he_hssi_ops
> > +};
> > diff --git a/drivers/raw/afu_mf/he_hssi.h
> > b/drivers/raw/afu_mf/he_hssi.h new file mode 100644 index
> > 0000000..f8b9623
> > --- /dev/null
> > +++ b/drivers/raw/afu_mf/he_hssi.h
> > @@ -0,0 +1,102 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation */
> > +
> > +#ifndef _HE_HSSI_H_
> > +#define _HE_HSSI_H_
> > +
> > +#include "afu_mf_rawdev.h"
> > +#include "rte_pmd_afu.h"
> > +
> > +#define HE_HSSI_UUID_L 0xbb370242ac130002
> > +#define HE_HSSI_UUID_H 0x823c334c98bf11ea
> > +#define NUM_HE_HSSI_PORTS 8
> > +
> > +extern struct afu_mf_drv he_hssi_drv;
> > +
> > +/* HE-HSSI registers definition */
> > +#define TRAFFIC_CTRL_CMD 0x30
> > +#define TRAFFIC_CTRL_DATA 0x38
> > +#define TRAFFIC_CTRL_CH_SEL 0x40
> > +#define AFU_SCRATCHPAD 0x48
> > +
> > +#define TG_NUM_PKT 0x3c00
> > +#define TG_PKT_LEN_TYPE 0x3c01
> > +#define TG_DATA_PATTERN 0x3c02
> > +#define TG_START_XFR 0x3c03
> > +#define TG_STOP_XFR 0x3c04
> > +#define TG_SRC_MAC_L 0x3c05
> > +#define TG_SRC_MAC_H 0x3c06
> > +#define TG_DST_MAC_L 0x3c07
> > +#define TG_DST_MAC_H 0x3c08
> > +#define TG_PKT_XFRD 0x3c09
> > +#define TG_RANDOM_SEED(n) (0x3c0a + (n))
> > +#define TG_PKT_LEN 0x3c0d
> > +
> > +#define TM_NUM_PKT 0x3d00
> > +#define TM_PKT_GOOD 0x3d01
> > +#define TM_PKT_BAD 0x3d02
> > +#define TM_BYTE_CNT0 0x3d03
> > +#define TM_BYTE_CNT1 0x3d04
> > +#define TM_AVST_RX_ERR 0x3d07
> > +#define OVERFLOW_ERR (1 << 9)
> > +#define LENGTH_ERR (1 << 8)
> > +#define OVERSIZE_ERR (1 << 7)
> > +#define UNDERSIZE_ERR (1 << 6)
> > +#define MAC_CRC_ERR (1 << 5)
> > +#define PHY_ERR (1 << 4)
> > +#define ERR_VALID (1 << 3)
> > +
> > +#define LOOPBACK_EN 0x3e00
> > +#define LOOPBACK_FIFO_STATUS 0x3e01
> > +#define ALMOST_EMPTY (1 << 1)
> > +#define ALMOST_FULL (1 << 0)
> > +
> > +#define MAILBOX_TIMEOUT_MS 100
> > +#define MAILBOX_POLL_INTERVAL_MS 10
> > +
> > +struct traffic_ctrl_cmd {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t read_cmd:1;
> > + uint32_t write_cmd:1;
> > + uint32_t ack_trans:1;
> > + uint32_t rsvd1:29;
> > + uint32_t afu_cmd_addr:16;
> > + uint32_t rsvd2:16;
> > + };
> > + };
> > +};
> > +
> > +struct traffic_ctrl_data {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t read_data;
> > + uint32_t write_data;
> > + };
> > + };
> > +};
> > +
> > +struct traffic_ctrl_ch_sel {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t channel_sel:3;
> > + uint32_t rsvd1:29;
> > + uint32_t rsvd2;
> > + };
> > + };
> > +};
> > +
> > +struct he_hssi_ctx {
> > + uint8_t *addr;
> > +};
> > +
> > +struct he_hssi_priv {
> > + struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
> > + struct he_hssi_ctx he_hssi_ctx;
> > +};
> > +
> > +#endif /* _HE_HSSI_H_ */
> > diff --git a/drivers/raw/afu_mf/meson.build
> > b/drivers/raw/afu_mf/meson.build index b53a31b..f304bc8 100644
> > --- a/drivers/raw/afu_mf/meson.build
> > +++ b/drivers/raw/afu_mf/meson.build
> > @@ -2,6 +2,7 @@
> > # Copyright 2022 Intel Corporation
> >
> > deps += ['rawdev', 'bus_pci', 'bus_ifpga'] -sources =
> > files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c')
> > +sources = files('afu_mf_rawdev.c', 'n3000_afu.c', 'he_lbk.c', 'he_mem.c',
> > + 'he_hssi.c')
> >
> > headers = files('rte_pmd_afu.h')
> > diff --git a/drivers/raw/afu_mf/rte_pmd_afu.h
> > b/drivers/raw/afu_mf/rte_pmd_afu.h
> > index 2f92f7e..89d866a 100644
> > --- a/drivers/raw/afu_mf/rte_pmd_afu.h
> > +++ b/drivers/raw/afu_mf/rte_pmd_afu.h
> > @@ -111,6 +111,22 @@ struct rte_pmd_afu_he_mem_tg_cfg {
> > uint32_t channel_mask; /* mask of traffic generator channel */
> > };
> >
> > +/**
> > + * HE-HSSI AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_he_hssi_cfg {
> > + uint32_t port;
> > + uint32_t timeout;
> > + uint32_t num_packets;
> > + uint32_t random_length;
> > + uint32_t packet_length;
> > + uint32_t random_payload;
> > + uint32_t rnd_seed[3];
> > + uint64_t src_addr;
> > + uint64_t dest_addr;
> > + int he_loopback;
> > +};
> > +
> > #ifdef __cplusplus
> > }
> > #endif
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread
* RE: [PATCH v5 0/5] introduce afu_mf raw device driver
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
` (4 preceding siblings ...)
2022-05-27 5:37 ` [PATCH v5 5/5] raw/afu_mf: add HE-HSSI " Wei Huang
@ 2022-06-06 1:47 ` Zhang, Tianfei
2022-06-07 2:34 ` Huang, Wei
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
6 siblings, 1 reply; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-06 1:47 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Friday, May 27, 2022 1:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v5 0/5] introduce afu_mf raw device driver
The title can change to: introduce AFU PMD driver of FPGA
>
> The first patch implements the framework of the AFU raw device driver.
The first patch implements the framework of the AFU PMD driver based on raw device interfaces.
> The subsequent patches implement the driver of some AFUs.
Can we add the guide about how to use or test those AFU PMD drivers in documentation, like doc/guides/rawdevs/ifpga.rst.
>
> Wei Huang (5):
> drivers/raw: introduce AFU raw device driver
> raw/afu_mf: add N3000 AFU driver
> raw/afu_mf: add HE-LBK AFU driver
> raw/afu_mf: add HE-MEM AFU driver
> raw/afu_mf: add HE-HSSI AFU driver
>
> drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
> drivers/raw/afu_mf/afu_mf_rawdev.h | 89 ++
> drivers/raw/afu_mf/he_hssi.c | 369 +++++++
> drivers/raw/afu_mf/he_hssi.h | 102 ++
> drivers/raw/afu_mf/he_lbk.c | 427 ++++++++
> drivers/raw/afu_mf/he_lbk.h | 121 +++
> drivers/raw/afu_mf/he_mem.c | 181 ++++
> drivers/raw/afu_mf/he_mem.h | 40 +
> drivers/raw/afu_mf/meson.build | 8 +
> drivers/raw/afu_mf/n3000_afu.c | 2005
> ++++++++++++++++++++++++++++++++++++
> drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
> drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
> drivers/raw/afu_mf/version.map | 3 +
> drivers/raw/meson.build | 1 +
> 14 files changed, 4253 insertions(+)
> create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
> create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
> create mode 100644 drivers/raw/afu_mf/he_hssi.c create mode 100644
> drivers/raw/afu_mf/he_hssi.h create mode 100644
> drivers/raw/afu_mf/he_lbk.c create mode 100644 drivers/raw/afu_mf/he_lbk.h
> create mode 100644 drivers/raw/afu_mf/he_mem.c create mode 100644
> drivers/raw/afu_mf/he_mem.h create mode 100644
> drivers/raw/afu_mf/meson.build create mode 100644
> drivers/raw/afu_mf/n3000_afu.c create mode 100644
> drivers/raw/afu_mf/n3000_afu.h create mode 100644
> drivers/raw/afu_mf/rte_pmd_afu.h create mode 100644
> drivers/raw/afu_mf/version.map
>
> --
> 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v5 0/5] introduce afu_mf raw device driver
2022-06-06 1:47 ` [PATCH v5 0/5] introduce afu_mf raw device driver Zhang, Tianfei
@ 2022-06-07 2:34 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-07 2:34 UTC (permalink / raw)
To: Zhang, Tianfei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Zhang, Tianfei <tianfei.zhang@intel.com>
> Sent: Monday, June 6, 2022 09:48
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v5 0/5] introduce afu_mf raw device driver
>
>
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Friday, May 27, 2022 1:37 PM
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> > Wei <wei.huang@intel.com>
> > Subject: [PATCH v5 0/5] introduce afu_mf raw device driver
>
> The title can change to: introduce AFU PMD driver of FPGA
agree
> >
> > The first patch implements the framework of the AFU raw device driver.
>
> The first patch implements the framework of the AFU PMD driver based on
> raw device interfaces.
>
> > The subsequent patches implement the driver of some AFUs.
>
> Can we add the guide about how to use or test those AFU PMD drivers in
> documentation, like doc/guides/rawdevs/ifpga.rst.
Add guide to file header.
>
> >
> > Wei Huang (5):
> > drivers/raw: introduce AFU raw device driver
> > raw/afu_mf: add N3000 AFU driver
> > raw/afu_mf: add HE-LBK AFU driver
> > raw/afu_mf: add HE-MEM AFU driver
> > raw/afu_mf: add HE-HSSI AFU driver
> >
> > drivers/raw/afu_mf/afu_mf_rawdev.c | 440 ++++++++
> > drivers/raw/afu_mf/afu_mf_rawdev.h | 89 ++
> > drivers/raw/afu_mf/he_hssi.c | 369 +++++++
> > drivers/raw/afu_mf/he_hssi.h | 102 ++
> > drivers/raw/afu_mf/he_lbk.c | 427 ++++++++
> > drivers/raw/afu_mf/he_lbk.h | 121 +++
> > drivers/raw/afu_mf/he_mem.c | 181 ++++
> > drivers/raw/afu_mf/he_mem.h | 40 +
> > drivers/raw/afu_mf/meson.build | 8 +
> > drivers/raw/afu_mf/n3000_afu.c | 2005
> > ++++++++++++++++++++++++++++++++++++
> > drivers/raw/afu_mf/n3000_afu.h | 333 ++++++
> > drivers/raw/afu_mf/rte_pmd_afu.h | 134 +++
> > drivers/raw/afu_mf/version.map | 3 +
> > drivers/raw/meson.build | 1 +
> > 14 files changed, 4253 insertions(+)
> > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.c
> > create mode 100644 drivers/raw/afu_mf/afu_mf_rawdev.h
> > create mode 100644 drivers/raw/afu_mf/he_hssi.c create mode 100644
> > drivers/raw/afu_mf/he_hssi.h create mode 100644
> > drivers/raw/afu_mf/he_lbk.c create mode 100644
> > drivers/raw/afu_mf/he_lbk.h create mode 100644
> > drivers/raw/afu_mf/he_mem.c create mode 100644
> > drivers/raw/afu_mf/he_mem.h create mode 100644
> > drivers/raw/afu_mf/meson.build create mode 100644
> > drivers/raw/afu_mf/n3000_afu.c create mode 100644
> > drivers/raw/afu_mf/n3000_afu.h create mode 100644
> > drivers/raw/afu_mf/rte_pmd_afu.h create mode 100644
> > drivers/raw/afu_mf/version.map
> >
> > --
> > 1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v6 0/5] introduce AFU PMD driver of FPGA
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
` (5 preceding siblings ...)
2022-06-06 1:47 ` [PATCH v5 0/5] introduce afu_mf raw device driver Zhang, Tianfei
@ 2022-06-09 2:44 ` Wei Huang
2022-06-09 2:44 ` [PATCH v6 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
` (5 more replies)
6 siblings, 6 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 2:44 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
The first patch implements the framework of the AFU PMD driver based on raw
device interfaces.
The subsequent patches implement the driver of some AFUs.
Changes from v5:
1. Move source files to raw/ifpga directory and rename them.
2. Use spinlock to prevent AFU from accessing simultaneously.
3. Refine code per Tianfei's comments.
Wei Huang (5):
raw/ifpga: introduce AFU driver framework
raw/ifpga: add N3000 AFU driver
raw/ifpga: add HE-LPBK AFU driver
raw/ifpga: add HE-MEM AFU driver
raw/ifpga: add HE-HSSI AFU driver
drivers/raw/ifpga/afu_pmd_core.c | 453 ++++++++
drivers/raw/ifpga/afu_pmd_core.h | 94 ++
drivers/raw/ifpga/afu_pmd_he_hssi.c | 371 +++++++
drivers/raw/ifpga/afu_pmd_he_hssi.h | 108 ++
drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436 ++++++++
drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++
drivers/raw/ifpga/afu_pmd_he_mem.c | 183 ++++
drivers/raw/ifpga/afu_pmd_he_mem.h | 46 +
drivers/raw/ifpga/afu_pmd_n3000.c | 2019 +++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_n3000.h | 339 ++++++
drivers/raw/ifpga/meson.build | 4 +-
drivers/raw/ifpga/rte_pmd_afu.h | 134 +++
12 files changed, 4312 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_core.c
create mode 100644 drivers/raw/ifpga/afu_pmd_core.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.h
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v6 1/5] raw/ifpga: introduce AFU driver framework
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
@ 2022-06-09 2:44 ` Wei Huang
2022-06-09 2:44 ` [PATCH v6 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
` (4 subsequent siblings)
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 2:44 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
AFU (Acceleration Function Unit) is part of FPGA and enumerated
by ifpga driver.
This driver implements common AFU device interfaces and exposes
them to application as standard raw device APIs.
Normally application can operate specified AFU as below,
1. call rte_rawdev_pmd_get_named_dev() to find AFU device.
2. call rte_rawdev_configure() to initialize AFU device.
3. call rte_rawdev_selftest() to test AFU device.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/ifpga/afu_pmd_core.c | 453 +++++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_core.h | 76 +++++++
drivers/raw/ifpga/meson.build | 2 +-
3 files changed, 530 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_core.c
create mode 100644 drivers/raw/ifpga/afu_pmd_core.h
diff --git a/drivers/raw/ifpga/afu_pmd_core.c b/drivers/raw/ifpga/afu_pmd_core.c
new file mode 100644
index 0000000..a24b517
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_core.c
@@ -0,0 +1,453 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ *
+ * AFU is Acceleration Function Unit in FPGA, it is enumerated by ifpga pmd.
+ * Suppose AFU is found in FPGA at PCI address 31:00.0, then you can create
+ * and test a AFU device by following steps in application.
+ * 1. rte_vdev_init("ifpga_rawdev_cfg0", "ifpga=31:00.0,port=0")
+ * 2. rawdev = rte_rawdev_pmd_get_named_dev("afu_0|31:00.0")
+ * 3. rte_rawdev_configure(rawdev->dev_id, &cfg, sizeof(cfg))
+ * 4. rte_rawdev_selftest(rawdev->dev_id)
+ * 5. rte_vdev_uninit("ifpga_rawdev_cfg0")
+ *
+ * AFU device name format used in rte_rawdev_pmd_get_named_dev is
+ * "afu_[port]|[BDF]". Please refer to OPAE documentation for the meaning of
+ * port. Each AFU device has specific configuration data, they are defined
+ * in rte_pmd_afu.h.
+ *
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "afu_pmd_core.h"
+
+static struct rte_afu_uuid afu_pmd_uuid_map[AFU_RAWDEV_MAX_DRVS+1];
+TAILQ_HEAD(afu_drv_list, afu_rawdev_drv);
+static struct afu_drv_list afu_pmd_list = TAILQ_HEAD_INITIALIZER(afu_pmd_list);
+
+static inline int afu_rawdev_trylock(struct afu_rawdev *dev)
+{
+ if (!dev || !dev->sd)
+ return 0;
+
+ return rte_spinlock_trylock(&dev->sd->lock);
+}
+
+static inline void afu_rawdev_unlock(struct afu_rawdev *dev)
+{
+ if (!dev || !dev->sd)
+ return;
+
+ rte_spinlock_unlock(&dev->sd->lock);
+}
+
+static int afu_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static void afu_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_rawdev_unlock(dev);
+}
+
+static int afu_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_rawdev_configure,
+ .dev_start = afu_rawdev_start,
+ .dev_stop = afu_rawdev_stop,
+ .dev_close = afu_rawdev_close,
+ .dev_reset = afu_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_rawdev_selftest,
+};
+
+static int afu_shared_data_alloc(const char *name,
+ struct afu_shared_data **data, int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_shared_data *sd = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name, sizeof(struct afu_shared_data),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ IFPGA_RAWDEV_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ sd = (struct afu_shared_data *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ rte_spinlock_init(&sd->lock);
+
+ *data = sd;
+
+ return 0;
+}
+
+static int afu_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ IFPGA_RAWDEV_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_ops *afu_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_rawdev_drv *drv = NULL;
+
+ if (!afu_id)
+ return NULL;
+
+ TAILQ_FOREACH(drv, &afu_pmd_list, next) {
+ if ((drv->uuid.uuid_low == afu_id->uuid_low) &&
+ (drv->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return drv ? drv->ops : NULL;
+}
+
+static int afu_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ IFPGA_RAWDEV_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_rawdev),
+ socket_id);
+ if (!rawdev) {
+ IFPGA_RAWDEV_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ IFPGA_RAWDEV_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_shared_data_alloc(name, &dev->sd, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ IFPGA_RAWDEV_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ IFPGA_RAWDEV_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+ return afu_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+ return afu_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_pmd = {
+ .id_table = afu_pmd_uuid_map,
+ .probe = afu_rawdev_probe,
+ .remove = afu_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(afu_rawdev_driver, afu_pmd);
+
+static void update_uuid_map(void)
+{
+ int i = 0;
+ struct rte_afu_uuid *afu_id = afu_pmd_uuid_map;
+ struct afu_rawdev_drv *drv;
+
+ TAILQ_FOREACH(drv, &afu_pmd_list, next) {
+ if (i++ < AFU_RAWDEV_MAX_DRVS) {
+ afu_id->uuid_low = drv->uuid.uuid_low;
+ afu_id->uuid_high = drv->uuid.uuid_high;
+ afu_id++;
+ }
+ }
+ if (i <= AFU_RAWDEV_MAX_DRVS) {
+ afu_id->uuid_low = 0;
+ afu_id->uuid_high = 0;
+ }
+}
+
+void afu_pmd_register(struct afu_rawdev_drv *driver)
+{
+ TAILQ_INSERT_TAIL(&afu_pmd_list, driver, next);
+ update_uuid_map();
+}
+
+void afu_pmd_unregister(struct afu_rawdev_drv *driver)
+{
+ TAILQ_REMOVE(&afu_pmd_list, driver, next);
+ update_uuid_map();
+}
diff --git a/drivers/raw/ifpga/afu_pmd_core.h b/drivers/raw/ifpga/afu_pmd_core.h
new file mode 100644
index 0000000..4fad2c7
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_core.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_PMD_CORE_H__
+#define __AFU_PMD_CORE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_spinlock.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "ifpga_rawdev.h"
+
+#define AFU_RAWDEV_MAX_DRVS 32
+
+struct afu_rawdev;
+
+struct afu_ops {
+ int (*init)(struct afu_rawdev *dev);
+ int (*config)(struct afu_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_rawdev *dev);
+ int (*stop)(struct afu_rawdev *dev);
+ int (*test)(struct afu_rawdev *dev);
+ int (*close)(struct afu_rawdev *dev);
+ int (*reset)(struct afu_rawdev *dev);
+ int (*dump)(struct afu_rawdev *dev, FILE *f);
+};
+
+struct afu_shared_data {
+ rte_spinlock_t lock; /* lock for multi-process access */
+};
+
+struct afu_rawdev_drv {
+ TAILQ_ENTRY(afu_rawdev_drv) next;
+ struct rte_afu_uuid uuid;
+ struct afu_ops *ops;
+};
+
+struct afu_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_shared_data *sd; /* shared data for multi-process */
+ struct afu_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_rawdev *
+afu_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
+}
+
+void afu_pmd_register(struct afu_rawdev_drv *driver);
+void afu_pmd_unregister(struct afu_rawdev_drv *driver);
+
+#define AFU_PMD_REGISTER(drv)\
+RTE_INIT(afupmdinitfunc_ ##drv)\
+{\
+ afu_pmd_register(&drv);\
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __AFU_PMD_CORE_H__ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index aeccc17..d9a6f29 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -13,7 +13,7 @@ objs = [base_objs]
deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
-sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c')
+sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v6 2/5] raw/ifpga: add N3000 AFU driver
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-09 2:44 ` [PATCH v6 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
@ 2022-06-09 2:44 ` Wei Huang
2022-06-09 2:44 ` [PATCH v6 3/5] raw/ifpga: add HE-LPBK " Wei Huang
` (3 subsequent siblings)
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 2:44 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
and DMA is used to test local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/ifpga/afu_pmd_core.h | 18 +
drivers/raw/ifpga/afu_pmd_n3000.c | 2019 +++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_n3000.h | 339 +++++++
drivers/raw/ifpga/meson.build | 3 +-
drivers/raw/ifpga/rte_pmd_afu.h | 97 ++
5 files changed, 2475 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
diff --git a/drivers/raw/ifpga/afu_pmd_core.h b/drivers/raw/ifpga/afu_pmd_core.h
index 4fad2c7..316615d 100644
--- a/drivers/raw/ifpga/afu_pmd_core.h
+++ b/drivers/raw/ifpga/afu_pmd_core.h
@@ -60,6 +60,24 @@ struct afu_rawdev {
return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
}
+#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
+#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines */
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
void afu_pmd_register(struct afu_rawdev_drv *driver);
void afu_pmd_unregister(struct afu_rawdev_drv *driver);
diff --git a/drivers/raw/ifpga/afu_pmd_n3000.c b/drivers/raw/ifpga/afu_pmd_n3000.c
new file mode 100644
index 0000000..14f7fe0
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_n3000.c
@@ -0,0 +1,2019 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_n3000.h"
+
+static int nlb_afu_config(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
+ cl, stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+ IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ IFPGA_RAWDEV_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free_data_buf;
+ }
+
+ return 0;
+
+free_data_buf:
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+free_dma_buf:
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ IFPGA_RAWDEV_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ IFPGA_RAWDEV_PMD_ERR("Timeout");
+ ret = -ETIMEDOUT;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ IFPGA_RAWDEV_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.len = %u", desc->len);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ IFPGA_RAWDEV_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ IFPGA_RAWDEV_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
+ ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(uintptr_t)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(uintptr_t)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(uintptr_t)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(uintptr_t)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ IFPGA_RAWDEV_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double getTime(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ IFPGA_RAWDEV_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ IFPGA_RAWDEV_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ IFPGA_RAWDEV_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+#ifdef VFIO_PRESENT
+static int dma_afu_set_irqs(struct afu_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ IFPGA_RAWDEV_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+#endif
+
+static void *n3000_afu_get_port_addr(struct afu_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ IFPGA_RAWDEV_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ IFPGA_RAWDEV_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr)
+ return -ENOMEM;
+
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dest;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release_dest:
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+release_src:
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+release_dsm:
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ IFPGA_RAWDEV_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+#ifdef VFIO_PRESENT
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ IFPGA_RAWDEV_PMD_ERR("DMA interrupt setup failed");
+#endif
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ IFPGA_RAWDEV_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ IFPGA_RAWDEV_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ IFPGA_RAWDEV_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ IFPGA_RAWDEV_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ IFPGA_RAWDEV_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ IFPGA_RAWDEV_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+static struct afu_rawdev_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
+
+AFU_PMD_REGISTER(n3000_afu_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_n3000.h b/drivers/raw/ifpga/afu_pmd_n3000.h
new file mode 100644
index 0000000..67e83fe
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_n3000.h
@@ -0,0 +1,339 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_N3000_H_
+#define _AFU_PMD_N3000_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_N3000_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index d9a6f29..2294ab5 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -13,7 +13,8 @@ objs = [base_objs]
deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
-sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
+sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
+ 'afu_pmd_n3000.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
new file mode 100644
index 0000000..f14a053
--- /dev/null
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v6 3/5] raw/ifpga: add HE-LPBK AFU driver
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-09 2:44 ` [PATCH v6 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
2022-06-09 2:44 ` [PATCH v6 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
@ 2022-06-09 2:44 ` Wei Huang
2022-06-09 2:44 ` [PATCH v6 4/5] raw/ifpga: add HE-MEM " Wei Huang
` (2 subsequent siblings)
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 2:44 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-LPBK and HE-MEM-LPBK are host exerciser modules in OFS FPGA,
HE-LPBK is used to test PCI bus and HE-MEM-LPBK is used to test
local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436 ++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++++++++++
drivers/raw/ifpga/meson.build | 2 +-
drivers/raw/ifpga/rte_pmd_afu.h | 14 ++
4 files changed, 577 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.c b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
new file mode 100644
index 0000000..8b2c85b
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
@@ -0,0 +1,436 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_lpbk.h"
+
+static int he_lpbk_afu_config(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lpbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lpbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lpbk_report(struct afu_rawdev *dev, uint32_t cl)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ struct he_lpbk_dsm_status *stat = NULL;
+ struct he_lpbk_status0 stat0;
+ struct he_lpbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ cfg = &priv->he_lpbk_cfg;
+ ctx = &priv->he_lpbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ IFPGA_RAWDEV_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ IFPGA_RAWDEV_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12"PRIu64
+ " %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lpbk_test(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ struct he_lpbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lpbk_cfg;
+ ctx = &priv->he_lpbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+
+ IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lpbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lpbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ IFPGA_RAWDEV_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lpbk_ctx_release(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lpbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lpbk_ctx_init(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lpbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr)
+ return -ENOMEM;
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dest;
+ }
+
+ ctx->status_ptr = (struct he_lpbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release_dest:
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+release_src:
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+release_dsm:
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ return ret;
+}
+
+static int he_lpbk_init(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lpbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lpbk_ctx_init(dev);
+}
+
+static int he_lpbk_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lpbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lpbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lpbk_cfg, cfg, sizeof(priv->he_lpbk_cfg));
+
+ return 0;
+}
+
+static int he_lpbk_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lpbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lpbk_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lpbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_ops he_lpbk_ops = {
+ .init = he_lpbk_init,
+ .config = he_lpbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lpbk_test,
+ .close = he_lpbk_close,
+ .dump = he_lpbk_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_lpbk_drv = {
+ .uuid = { HE_LPBK_UUID_L, HE_LPBK_UUID_H },
+ .ops = &he_lpbk_ops
+};
+
+AFU_PMD_REGISTER(he_lpbk_drv);
+
+struct afu_rawdev_drv he_mem_lpbk_drv = {
+ .uuid = { HE_MEM_LPBK_UUID_L, HE_MEM_LPBK_UUID_H },
+ .ops = &he_lpbk_ops
+};
+
+AFU_PMD_REGISTER(he_mem_lpbk_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.h b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
new file mode 100644
index 0000000..5ad6aa8
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_LPBK_H_
+#define _AFU_PMD_HE_LPBK_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LPBK_UUID_L 0xb94b12284c31e02b
+#define HE_LPBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LPBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LPBK_UUID_H 0x8568ab4e6ba54616
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lpbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lpbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lpbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lpbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lpbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lpbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lpbk_dsm_status *status_ptr;
+};
+
+struct he_lpbk_priv {
+ struct rte_pmd_afu_he_lpbk_cfg he_lpbk_cfg;
+ struct he_lpbk_ctx he_lpbk_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_LPBK_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index 2294ab5..629ff8a 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index f14a053..19b3902 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
};
};
+/**
+ * HE-LPBK & HE-MEM-LPBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lpbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v6 4/5] raw/ifpga: add HE-MEM AFU driver
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (2 preceding siblings ...)
2022-06-09 2:44 ` [PATCH v6 3/5] raw/ifpga: add HE-LPBK " Wei Huang
@ 2022-06-09 2:44 ` Wei Huang
2022-06-09 2:44 ` [PATCH v6 5/5] raw/ifpga: add HE-HSSI " Wei Huang
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 2:44 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-MEM is one of the host exerciser modules in OFS FPGA,
which is used to test local memory with built-in traffic
generator.
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/ifpga/afu_pmd_he_mem.c | 183 +++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_mem.h | 46 ++++++++++
drivers/raw/ifpga/meson.build | 2 +-
drivers/raw/ifpga/rte_pmd_afu.h | 7 ++
4 files changed, 237 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.c b/drivers/raw/ifpga/afu_pmd_he_mem.c
new file mode 100644
index 0000000..0f57a03
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_mem.c
@@ -0,0 +1,183 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_mem.h"
+
+static int he_mem_tg_test(struct afu_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ IFPGA_RAWDEV_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ IFPGA_RAWDEV_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ IFPGA_RAWDEV_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ IFPGA_RAWDEV_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
+
+AFU_PMD_REGISTER(he_mem_tg_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.h b/drivers/raw/ifpga/afu_pmd_he_mem.h
new file mode 100644
index 0000000..5549687
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_mem.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_MEM_H_
+#define _AFU_PMD_HE_MEM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_MEM_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index 629ff8a..dc6941d 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index 19b3902..213e854 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -104,6 +104,13 @@ struct rte_pmd_afu_he_lpbk_cfg {
uint32_t freq_mhz;
};
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v6 5/5] raw/ifpga: add HE-HSSI AFU driver
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (3 preceding siblings ...)
2022-06-09 2:44 ` [PATCH v6 4/5] raw/ifpga: add HE-MEM " Wei Huang
@ 2022-06-09 2:44 ` Wei Huang
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 2:44 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-HSSI is one of the host exerciser modules in OFS FPGA,
which is used to test HSSI (High Speed Serial Interface).
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
drivers/raw/ifpga/afu_pmd_he_hssi.c | 371 ++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_hssi.h | 108 +++++++++++
drivers/raw/ifpga/meson.build | 3 +-
drivers/raw/ifpga/rte_pmd_afu.h | 16 ++
4 files changed, 497 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.c b/drivers/raw/ifpga/afu_pmd_he_hssi.c
new file mode 100644
index 0000000..395c2ca
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_hssi.c
@@ -0,0 +1,371 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ IFPGA_RAWDEV_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < 3; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
+
+AFU_PMD_REGISTER(he_hssi_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.h b/drivers/raw/ifpga/afu_pmd_he_hssi.h
new file mode 100644
index 0000000..3974670
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_hssi.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_HSSI_H_
+#define _AFU_PMD_HE_HSSI_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_HSSI_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index dc6941d..cc30dc8 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,8 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c',
+ 'afu_pmd_he_hssi.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index 213e854..cea1ea3 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -111,6 +111,22 @@ struct rte_pmd_afu_he_mem_tg_cfg {
uint32_t channel_mask; /* mask of traffic generator channel */
};
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[3];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v7 0/5] introduce AFU PMD driver of FPGA
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (4 preceding siblings ...)
2022-06-09 2:44 ` [PATCH v6 5/5] raw/ifpga: add HE-HSSI " Wei Huang
@ 2022-06-09 7:37 ` Wei Huang
2022-06-09 7:37 ` [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
` (5 more replies)
5 siblings, 6 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 7:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
The first patch implements the framework of the AFU PMD driver based on raw
device interfaces.
The subsequent patches implement the driver of some AFUs.
Changes from v6:
1. Fix Ubuntu 20.04 ARM build.
Wei Huang (5):
raw/ifpga: introduce AFU driver framework
raw/ifpga: add N3000 AFU driver
raw/ifpga: add HE-LPBK AFU driver
raw/ifpga: add HE-MEM AFU driver
raw/ifpga: add HE-HSSI AFU driver
drivers/raw/ifpga/afu_pmd_core.c | 453 ++++++++
drivers/raw/ifpga/afu_pmd_core.h | 95 ++
drivers/raw/ifpga/afu_pmd_he_hssi.c | 371 +++++++
drivers/raw/ifpga/afu_pmd_he_hssi.h | 109 ++
drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436 ++++++++
drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++
drivers/raw/ifpga/afu_pmd_he_mem.c | 183 ++++
drivers/raw/ifpga/afu_pmd_he_mem.h | 46 +
drivers/raw/ifpga/afu_pmd_n3000.c | 2019 +++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_n3000.h | 339 ++++++
drivers/raw/ifpga/meson.build | 4 +-
drivers/raw/ifpga/rte_pmd_afu.h | 136 +++
12 files changed, 4316 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_core.c
create mode 100644 drivers/raw/ifpga/afu_pmd_core.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.h
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
@ 2022-06-09 7:37 ` Wei Huang
2022-06-10 6:09 ` Zhang, Tianfei
2022-06-15 6:55 ` Xu, Rosen
2022-06-09 7:37 ` [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
` (4 subsequent siblings)
5 siblings, 2 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 7:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
AFU (Acceleration Function Unit) is part of FPGA and enumerated
by ifpga driver.
This driver implements common AFU device interfaces and exposes
them to application as standard raw device APIs.
Normally application can operate specified AFU as below,
1. call rte_rawdev_pmd_get_named_dev() to find AFU device.
2. call rte_rawdev_configure() to initialize AFU device.
3. call rte_rawdev_selftest() to test AFU device.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
v2: fix typo
---
v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
---
v4: fix coding style issue and build error in FreeBSD13-64
---
v5: split patch into several patches
---
v6: move source files to ifpga and rename, use spinlock
---
drivers/raw/ifpga/afu_pmd_core.c | 453 +++++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_core.h | 76 +++++++
drivers/raw/ifpga/meson.build | 2 +-
3 files changed, 530 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_core.c
create mode 100644 drivers/raw/ifpga/afu_pmd_core.h
diff --git a/drivers/raw/ifpga/afu_pmd_core.c b/drivers/raw/ifpga/afu_pmd_core.c
new file mode 100644
index 0000000..a24b517
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_core.c
@@ -0,0 +1,453 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ *
+ * AFU is Acceleration Function Unit in FPGA, it is enumerated by ifpga pmd.
+ * Suppose AFU is found in FPGA at PCI address 31:00.0, then you can create
+ * and test a AFU device by following steps in application.
+ * 1. rte_vdev_init("ifpga_rawdev_cfg0", "ifpga=31:00.0,port=0")
+ * 2. rawdev = rte_rawdev_pmd_get_named_dev("afu_0|31:00.0")
+ * 3. rte_rawdev_configure(rawdev->dev_id, &cfg, sizeof(cfg))
+ * 4. rte_rawdev_selftest(rawdev->dev_id)
+ * 5. rte_vdev_uninit("ifpga_rawdev_cfg0")
+ *
+ * AFU device name format used in rte_rawdev_pmd_get_named_dev is
+ * "afu_[port]|[BDF]". Please refer to OPAE documentation for the meaning of
+ * port. Each AFU device has specific configuration data, they are defined
+ * in rte_pmd_afu.h.
+ *
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "afu_pmd_core.h"
+
+static struct rte_afu_uuid afu_pmd_uuid_map[AFU_RAWDEV_MAX_DRVS+1];
+TAILQ_HEAD(afu_drv_list, afu_rawdev_drv);
+static struct afu_drv_list afu_pmd_list = TAILQ_HEAD_INITIALIZER(afu_pmd_list);
+
+static inline int afu_rawdev_trylock(struct afu_rawdev *dev)
+{
+ if (!dev || !dev->sd)
+ return 0;
+
+ return rte_spinlock_trylock(&dev->sd->lock);
+}
+
+static inline void afu_rawdev_unlock(struct afu_rawdev *dev)
+{
+ if (!dev || !dev->sd)
+ return;
+
+ rte_spinlock_unlock(&dev->sd->lock);
+}
+
+static int afu_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static void afu_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_rawdev_unlock(dev);
+}
+
+static int afu_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_rawdev_configure,
+ .dev_start = afu_rawdev_start,
+ .dev_stop = afu_rawdev_stop,
+ .dev_close = afu_rawdev_close,
+ .dev_reset = afu_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_rawdev_selftest,
+};
+
+static int afu_shared_data_alloc(const char *name,
+ struct afu_shared_data **data, int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_shared_data *sd = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name, sizeof(struct afu_shared_data),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ IFPGA_RAWDEV_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ sd = (struct afu_shared_data *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ rte_spinlock_init(&sd->lock);
+
+ *data = sd;
+
+ return 0;
+}
+
+static int afu_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ IFPGA_RAWDEV_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_ops *afu_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_rawdev_drv *drv = NULL;
+
+ if (!afu_id)
+ return NULL;
+
+ TAILQ_FOREACH(drv, &afu_pmd_list, next) {
+ if ((drv->uuid.uuid_low == afu_id->uuid_low) &&
+ (drv->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return drv ? drv->ops : NULL;
+}
+
+static int afu_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ IFPGA_RAWDEV_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_rawdev),
+ socket_id);
+ if (!rawdev) {
+ IFPGA_RAWDEV_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ IFPGA_RAWDEV_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_shared_data_alloc(name, &dev->sd, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ IFPGA_RAWDEV_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ IFPGA_RAWDEV_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+ return afu_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+ return afu_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_pmd = {
+ .id_table = afu_pmd_uuid_map,
+ .probe = afu_rawdev_probe,
+ .remove = afu_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(afu_rawdev_driver, afu_pmd);
+
+static void update_uuid_map(void)
+{
+ int i = 0;
+ struct rte_afu_uuid *afu_id = afu_pmd_uuid_map;
+ struct afu_rawdev_drv *drv;
+
+ TAILQ_FOREACH(drv, &afu_pmd_list, next) {
+ if (i++ < AFU_RAWDEV_MAX_DRVS) {
+ afu_id->uuid_low = drv->uuid.uuid_low;
+ afu_id->uuid_high = drv->uuid.uuid_high;
+ afu_id++;
+ }
+ }
+ if (i <= AFU_RAWDEV_MAX_DRVS) {
+ afu_id->uuid_low = 0;
+ afu_id->uuid_high = 0;
+ }
+}
+
+void afu_pmd_register(struct afu_rawdev_drv *driver)
+{
+ TAILQ_INSERT_TAIL(&afu_pmd_list, driver, next);
+ update_uuid_map();
+}
+
+void afu_pmd_unregister(struct afu_rawdev_drv *driver)
+{
+ TAILQ_REMOVE(&afu_pmd_list, driver, next);
+ update_uuid_map();
+}
diff --git a/drivers/raw/ifpga/afu_pmd_core.h b/drivers/raw/ifpga/afu_pmd_core.h
new file mode 100644
index 0000000..4fad2c7
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_core.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_PMD_CORE_H__
+#define __AFU_PMD_CORE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_spinlock.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "ifpga_rawdev.h"
+
+#define AFU_RAWDEV_MAX_DRVS 32
+
+struct afu_rawdev;
+
+struct afu_ops {
+ int (*init)(struct afu_rawdev *dev);
+ int (*config)(struct afu_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_rawdev *dev);
+ int (*stop)(struct afu_rawdev *dev);
+ int (*test)(struct afu_rawdev *dev);
+ int (*close)(struct afu_rawdev *dev);
+ int (*reset)(struct afu_rawdev *dev);
+ int (*dump)(struct afu_rawdev *dev, FILE *f);
+};
+
+struct afu_shared_data {
+ rte_spinlock_t lock; /* lock for multi-process access */
+};
+
+struct afu_rawdev_drv {
+ TAILQ_ENTRY(afu_rawdev_drv) next;
+ struct rte_afu_uuid uuid;
+ struct afu_ops *ops;
+};
+
+struct afu_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_shared_data *sd; /* shared data for multi-process */
+ struct afu_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_rawdev *
+afu_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
+}
+
+void afu_pmd_register(struct afu_rawdev_drv *driver);
+void afu_pmd_unregister(struct afu_rawdev_drv *driver);
+
+#define AFU_PMD_REGISTER(drv)\
+RTE_INIT(afupmdinitfunc_ ##drv)\
+{\
+ afu_pmd_register(&drv);\
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __AFU_PMD_CORE_H__ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index aeccc17..d9a6f29 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -13,7 +13,7 @@ objs = [base_objs]
deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
-sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c')
+sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
2022-06-09 7:37 ` [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
@ 2022-06-10 6:09 ` Zhang, Tianfei
2022-06-15 6:55 ` Xu, Rosen
1 sibling, 0 replies; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-10 6:09 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 9, 2022 3:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
>
> AFU (Acceleration Function Unit) is part of FPGA and enumerated by ifpga driver.
> This driver implements common AFU device interfaces and exposes them to
> application as standard raw device APIs.
> Normally application can operate specified AFU as below, 1. call
> rte_rawdev_pmd_get_named_dev() to find AFU device.
> 2. call rte_rawdev_configure() to initialize AFU device.
> 3. call rte_rawdev_selftest() to test AFU device.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: fix typo
> ---
> v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> ---
> v4: fix coding style issue and build error in FreeBSD13-64
> ---
> v5: split patch into several patches
> ---
> v6: move source files to ifpga and rename, use spinlock
> ---
> drivers/raw/ifpga/afu_pmd_core.c | 453
> +++++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_core.h | 76 +++++++
> drivers/raw/ifpga/meson.build | 2 +-
> 3 files changed, 530 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/ifpga/afu_pmd_core.c create mode 100644
> drivers/raw/ifpga/afu_pmd_core.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_core.c
> b/drivers/raw/ifpga/afu_pmd_core.c
> new file mode 100644
> index 0000000..a24b517
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_core.c
> @@ -0,0 +1,453 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + *
> + * AFU is Acceleration Function Unit in FPGA, it is enumerated by ifpga pmd.
> + * Suppose AFU is found in FPGA at PCI address 31:00.0, then you can
> +create
> + * and test a AFU device by following steps in application.
> + * 1. rte_vdev_init("ifpga_rawdev_cfg0", "ifpga=31:00.0,port=0")
> + * 2. rawdev = rte_rawdev_pmd_get_named_dev("afu_0|31:00.0")
> + * 3. rte_rawdev_configure(rawdev->dev_id, &cfg, sizeof(cfg))
> + * 4. rte_rawdev_selftest(rawdev->dev_id)
> + * 5. rte_vdev_uninit("ifpga_rawdev_cfg0")
> + *
> + * AFU device name format used in rte_rawdev_pmd_get_named_dev is
> + * "afu_[port]|[BDF]". Please refer to OPAE documentation for the
> +meaning of
> + * port. Each AFU device has specific configuration data, they are
> +defined
> + * in rte_pmd_afu.h.
> + *
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memzone.h>
> +#include <rte_rawdev_pmd.h>
> +
> +#include "afu_pmd_core.h"
> +
> +static struct rte_afu_uuid afu_pmd_uuid_map[AFU_RAWDEV_MAX_DRVS+1];
> +TAILQ_HEAD(afu_drv_list, afu_rawdev_drv); static struct afu_drv_list
> +afu_pmd_list = TAILQ_HEAD_INITIALIZER(afu_pmd_list);
> +
> +static inline int afu_rawdev_trylock(struct afu_rawdev *dev) {
> + if (!dev || !dev->sd)
> + return 0;
> +
> + return rte_spinlock_trylock(&dev->sd->lock);
> +}
> +
> +static inline void afu_rawdev_unlock(struct afu_rawdev *dev) {
> + if (!dev || !dev->sd)
> + return;
> +
> + rte_spinlock_unlock(&dev->sd->lock);
> +}
> +
> +static int afu_rawdev_configure(const struct rte_rawdev *rawdev,
> + rte_rawdev_obj_t config, size_t config_size) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->config)
> + ret = (*dev->ops->config)(dev, config, config_size);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_start(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please start it
> later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->start)
> + ret = (*dev->ops->start)(dev);
> +
> + afu_rawdev_unlock(dev);
> +
> + return ret;
> +}
> +
> +static void afu_rawdev_stop(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please stop it
> later");
> + return;
> + }
> +
> + if (dev->ops && dev->ops->stop)
> + ret = (*dev->ops->stop)(dev);
> +
> + afu_rawdev_unlock(dev);
> +}
> +
> +static int afu_rawdev_close(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->close)
> + ret = (*dev->ops->close)(dev);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_reset(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please reset it
> later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->reset)
> + ret = (*dev->ops->reset)(dev);
> +
> + afu_rawdev_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_selftest(uint16_t dev_id) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> + return -ENODEV;
> +
> + dev = afu_rawdev_get_priv(&rte_rawdevs[dev_id]);
> + if (!dev)
> + return -ENOENT;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please test it
> later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->test)
> + ret = (*dev->ops->test)(dev);
> +
> + afu_rawdev_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_dump(struct rte_rawdev *rawdev, FILE *f) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->dump)
> + ret = (*dev->ops->dump)(dev, f);
> +
> + return ret;
> +}
> +
> +static const struct rte_rawdev_ops afu_rawdev_ops = {
> + .dev_info_get = NULL,
> + .dev_configure = afu_rawdev_configure,
> + .dev_start = afu_rawdev_start,
> + .dev_stop = afu_rawdev_stop,
> + .dev_close = afu_rawdev_close,
> + .dev_reset = afu_rawdev_reset,
> +
> + .queue_def_conf = NULL,
> + .queue_setup = NULL,
> + .queue_release = NULL,
> + .queue_count = NULL,
> +
> + .attr_get = NULL,
> + .attr_set = NULL,
> +
> + .enqueue_bufs = NULL,
> + .dequeue_bufs = NULL,
> +
> + .dump = afu_rawdev_dump,
> +
> + .xstats_get = NULL,
> + .xstats_get_names = NULL,
> + .xstats_get_by_name = NULL,
> + .xstats_reset = NULL,
> +
> + .firmware_status_get = NULL,
> + .firmware_version_get = NULL,
> + .firmware_load = NULL,
> + .firmware_unload = NULL,
> +
> + .dev_selftest = afu_rawdev_selftest,
> +};
> +
> +static int afu_shared_data_alloc(const char *name,
> + struct afu_shared_data **data, int socket_id) {
> + const struct rte_memzone *mz;
> + char mz_name[RTE_MEMZONE_NAMESIZE];
> + struct afu_shared_data *sd = NULL;
> + int init_mz = 0;
> +
> + if (!name || !data)
> + return -EINVAL;
> +
> + /* name format is afu_?|??:??.? which is unique */
> + snprintf(mz_name, sizeof(mz_name), "%s", name);
> +
> + mz = rte_memzone_lookup(mz_name);
> + if (!mz) {
> + mz = rte_memzone_reserve(mz_name, sizeof(struct
> afu_shared_data),
> + socket_id, 0);
> + init_mz = 1;
> + }
> +
> + if (!mz) {
> + IFPGA_RAWDEV_PMD_ERR("Allocate memory zone %s failed!",
> + mz_name);
> + return -ENOMEM;
> + }
> +
> + sd = (struct afu_shared_data *)mz->addr;
> +
> + if (init_mz) /* initialize memory zone on the first time */
> + rte_spinlock_init(&sd->lock);
> +
> + *data = sd;
> +
> + return 0;
> +}
> +
> +static int afu_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
> + size_t size)
> +{
> + int n = 0;
> +
> + if (!afu_dev || !name || !size)
> + return -EINVAL;
> +
> + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> + if (n >= (int)size) {
> + IFPGA_RAWDEV_PMD_ERR("Name of AFU device is too long!");
> + return -ENAMETOOLONG;
> + }
> +
> + return 0;
> +}
> +
> +static struct afu_ops *afu_ops_get(struct rte_afu_uuid *afu_id) {
> + struct afu_rawdev_drv *drv = NULL;
> +
> + if (!afu_id)
> + return NULL;
> +
> + TAILQ_FOREACH(drv, &afu_pmd_list, next) {
> + if ((drv->uuid.uuid_low == afu_id->uuid_low) &&
> + (drv->uuid.uuid_high == afu_id->uuid_high))
> + break;
> + }
> +
> + return drv ? drv->ops : NULL;
> +}
> +
> +static int afu_rawdev_create(struct rte_afu_device *afu_dev, int
> +socket_id) {
> + struct rte_rawdev *rawdev = NULL;
> + struct afu_rawdev *dev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + IFPGA_RAWDEV_PMD_INFO("Create raw device %s on NUMA node
> %d",
> + name, socket_id);
> +
> + /* Allocate device structure */
> + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_rawdev),
> + socket_id);
> + if (!rawdev) {
> + IFPGA_RAWDEV_PMD_ERR("Unable to allocate raw device");
> + return -ENOMEM;
> + }
> +
> + rawdev->dev_ops = &afu_rawdev_ops;
> + rawdev->device = &afu_dev->device;
> + rawdev->driver_name = afu_dev->driver->driver.name;
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + goto cleanup;
> +
> + dev->rawdev = rawdev;
> + dev->port = afu_dev->id.port;
> + dev->addr = afu_dev->mem_resource[0].addr;
> + dev->ops = afu_ops_get(&afu_dev->id.uuid);
> + if (dev->ops == NULL) {
> + IFPGA_RAWDEV_PMD_ERR("Unsupported AFU device");
> + goto cleanup;
> + }
> +
> + if (dev->ops->init) {
> + ret = (*dev->ops->init)(dev);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to init %s", name);
> + goto cleanup;
> + }
> + }
> +
> + ret = afu_shared_data_alloc(name, &dev->sd, socket_id);
> + if (ret)
> + goto cleanup;
> +
> + return ret;
> +
> +cleanup:
> + rte_rawdev_pmd_release(rawdev);
> + return ret;
> +}
> +
> +static int afu_rawdev_destroy(struct rte_afu_device *afu_dev) {
> + struct rte_rawdev *rawdev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + IFPGA_RAWDEV_PMD_INFO("Destroy raw device %s", name);
> +
> + rawdev = rte_rawdev_pmd_get_named_dev(name);
> + if (!rawdev) {
> + IFPGA_RAWDEV_PMD_ERR("Raw device %s not found", name);
> + return -EINVAL;
> + }
> +
> + /* rte_rawdev_close is called by pmd_release */
> + ret = rte_rawdev_pmd_release(rawdev);
> + if (ret)
> + IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed");
> +
> + return 0;
> +}
> +
> +static int afu_rawdev_probe(struct rte_afu_device *afu_dev) {
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> + return afu_rawdev_create(afu_dev, rte_socket_id()); }
> +
> +static int afu_rawdev_remove(struct rte_afu_device *afu_dev) {
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> + return afu_rawdev_destroy(afu_dev);
> +}
> +
> +static struct rte_afu_driver afu_pmd = {
> + .id_table = afu_pmd_uuid_map,
> + .probe = afu_rawdev_probe,
> + .remove = afu_rawdev_remove
> +};
> +
> +RTE_PMD_REGISTER_AFU(afu_rawdev_driver, afu_pmd);
> +
> +static void update_uuid_map(void)
> +{
> + int i = 0;
> + struct rte_afu_uuid *afu_id = afu_pmd_uuid_map;
> + struct afu_rawdev_drv *drv;
> +
> + TAILQ_FOREACH(drv, &afu_pmd_list, next) {
> + if (i++ < AFU_RAWDEV_MAX_DRVS) {
> + afu_id->uuid_low = drv->uuid.uuid_low;
> + afu_id->uuid_high = drv->uuid.uuid_high;
> + afu_id++;
> + }
> + }
> + if (i <= AFU_RAWDEV_MAX_DRVS) {
> + afu_id->uuid_low = 0;
> + afu_id->uuid_high = 0;
> + }
> +}
> +
> +void afu_pmd_register(struct afu_rawdev_drv *driver) {
> + TAILQ_INSERT_TAIL(&afu_pmd_list, driver, next);
> + update_uuid_map();
> +}
> +
> +void afu_pmd_unregister(struct afu_rawdev_drv *driver) {
> + TAILQ_REMOVE(&afu_pmd_list, driver, next);
> + update_uuid_map();
> +}
> diff --git a/drivers/raw/ifpga/afu_pmd_core.h
> b/drivers/raw/ifpga/afu_pmd_core.h
> new file mode 100644
> index 0000000..4fad2c7
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_core.h
> @@ -0,0 +1,76 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __AFU_PMD_CORE_H__
> +#define __AFU_PMD_CORE_H__
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <stdint.h>
> +#include <stdio.h>
> +#include <unistd.h>
> +
> +#include <rte_spinlock.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "ifpga_rawdev.h"
> +
> +#define AFU_RAWDEV_MAX_DRVS 32
> +
> +struct afu_rawdev;
> +
> +struct afu_ops {
> + int (*init)(struct afu_rawdev *dev);
> + int (*config)(struct afu_rawdev *dev, void *config,
> + size_t config_size);
> + int (*start)(struct afu_rawdev *dev);
> + int (*stop)(struct afu_rawdev *dev);
> + int (*test)(struct afu_rawdev *dev);
> + int (*close)(struct afu_rawdev *dev);
> + int (*reset)(struct afu_rawdev *dev);
> + int (*dump)(struct afu_rawdev *dev, FILE *f); };
> +
> +struct afu_shared_data {
> + rte_spinlock_t lock; /* lock for multi-process access */ };
> +
> +struct afu_rawdev_drv {
> + TAILQ_ENTRY(afu_rawdev_drv) next;
> + struct rte_afu_uuid uuid;
> + struct afu_ops *ops;
> +};
> +
> +struct afu_rawdev {
> + struct rte_rawdev *rawdev; /* point to parent raw device */
> + struct afu_shared_data *sd; /* shared data for multi-process */
> + struct afu_ops *ops; /* device operation functions */
> + int port; /* index of port the AFU attached */
> + void *addr; /* base address of AFU registers */
> + void *priv; /* private driver data */ };
> +
> +static inline struct afu_rawdev *
> +afu_rawdev_get_priv(const struct rte_rawdev *rawdev) {
> + return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL; }
> +
> +void afu_pmd_register(struct afu_rawdev_drv *driver); void
> +afu_pmd_unregister(struct afu_rawdev_drv *driver);
> +
> +#define AFU_PMD_REGISTER(drv)\
> +RTE_INIT(afupmdinitfunc_ ##drv)\
> +{\
> + afu_pmd_register(&drv);\
> +}
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* __AFU_PMD_CORE_H__ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index aeccc17..d9a6f29 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -13,7 +13,7 @@ objs = [base_objs]
> deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> -sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c')
> +sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
>
> includes += include_directories('base') includes +=
> include_directories('../../net/ipn3ke')
> --
> 1.8.3.1
It looks good for me, you can add:
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
2022-06-09 7:37 ` [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
2022-06-10 6:09 ` Zhang, Tianfei
@ 2022-06-15 6:55 ` Xu, Rosen
2022-06-15 9:03 ` Huang, Wei
1 sibling, 1 reply; 57+ messages in thread
From: Xu, Rosen @ 2022-06-15 6:55 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
Hi Wei,
Some comments.
Thanks,
Rosen
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 09, 2022 15:37
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
>
> AFU (Acceleration Function Unit) is part of FPGA and enumerated by ifpga
> driver.
> This driver implements common AFU device interfaces and exposes them to
> application as standard raw device APIs.
> Normally application can operate specified AFU as below, 1. call
> rte_rawdev_pmd_get_named_dev() to find AFU device.
> 2. call rte_rawdev_configure() to initialize AFU device.
> 3. call rte_rawdev_selftest() to test AFU device.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: fix typo
> ---
> v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> ---
> v4: fix coding style issue and build error in FreeBSD13-64
> ---
> v5: split patch into several patches
> ---
> v6: move source files to ifpga and rename, use spinlock
> ---
> drivers/raw/ifpga/afu_pmd_core.c | 453
> +++++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_core.h | 76 +++++++
> drivers/raw/ifpga/meson.build | 2 +-
> 3 files changed, 530 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/ifpga/afu_pmd_core.c create mode 100644
> drivers/raw/ifpga/afu_pmd_core.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_core.c
> b/drivers/raw/ifpga/afu_pmd_core.c
> new file mode 100644
> index 0000000..a24b517
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_core.c
> @@ -0,0 +1,453 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + *
> + * AFU is Acceleration Function Unit in FPGA, it is enumerated by ifpga pmd.
> + * Suppose AFU is found in FPGA at PCI address 31:00.0, then you can
> +create
> + * and test a AFU device by following steps in application.
> + * 1. rte_vdev_init("ifpga_rawdev_cfg0", "ifpga=31:00.0,port=0")
> + * 2. rawdev = rte_rawdev_pmd_get_named_dev("afu_0|31:00.0")
> + * 3. rte_rawdev_configure(rawdev->dev_id, &cfg, sizeof(cfg))
> + * 4. rte_rawdev_selftest(rawdev->dev_id)
> + * 5. rte_vdev_uninit("ifpga_rawdev_cfg0")
> + *
> + * AFU device name format used in rte_rawdev_pmd_get_named_dev is
> + * "afu_[port]|[BDF]". Please refer to OPAE documentation for the
> +meaning of
> + * port. Each AFU device has specific configuration data, they are
> +defined
> + * in rte_pmd_afu.h.
> + *
> + */
> +
Could you split these notes? General speaking we just announce license in head of source file.
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memzone.h>
> +#include <rte_rawdev_pmd.h>
> +
> +#include "afu_pmd_core.h"
> +
> +static struct rte_afu_uuid
> afu_pmd_uuid_map[AFU_RAWDEV_MAX_DRVS+1];
> +TAILQ_HEAD(afu_drv_list, afu_rawdev_drv); static struct afu_drv_list
> +afu_pmd_list = TAILQ_HEAD_INITIALIZER(afu_pmd_list);
> +
> +static inline int afu_rawdev_trylock(struct afu_rawdev *dev) {
> + if (!dev || !dev->sd)
> + return 0;
> +
> + return rte_spinlock_trylock(&dev->sd->lock);
> +}
> +
> +static inline void afu_rawdev_unlock(struct afu_rawdev *dev) {
> + if (!dev || !dev->sd)
> + return;
> +
> + rte_spinlock_unlock(&dev->sd->lock);
> +}
> +
> +static int afu_rawdev_configure(const struct rte_rawdev *rawdev,
> + rte_rawdev_obj_t config, size_t config_size) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->config)
> + ret = (*dev->ops->config)(dev, config, config_size);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_start(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please start it
> later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->start)
> + ret = (*dev->ops->start)(dev);
> +
> + afu_rawdev_unlock(dev);
> +
> + return ret;
> +}
> +
> +static void afu_rawdev_stop(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please stop it
> later");
> + return;
> + }
> +
> + if (dev->ops && dev->ops->stop)
> + ret = (*dev->ops->stop)(dev);
> +
> + afu_rawdev_unlock(dev);
> +}
> +
> +static int afu_rawdev_close(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->close)
> + ret = (*dev->ops->close)(dev);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_reset(struct rte_rawdev *rawdev) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please reset it
> later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->reset)
> + ret = (*dev->ops->reset)(dev);
> +
> + afu_rawdev_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_selftest(uint16_t dev_id) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> + return -ENODEV;
> +
> + dev = afu_rawdev_get_priv(&rte_rawdevs[dev_id]);
> + if (!dev)
> + return -ENOENT;
> +
> + ret = afu_rawdev_trylock(dev);
> + if (!ret) {
> + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please test it
> later");
> + return ret;
> + }
> +
> + if (dev->ops && dev->ops->test)
> + ret = (*dev->ops->test)(dev);
> +
> + afu_rawdev_unlock(dev);
> +
> + return ret;
> +}
> +
> +static int afu_rawdev_dump(struct rte_rawdev *rawdev, FILE *f) {
> + struct afu_rawdev *dev = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + return -ENODEV;
> +
> + if (dev->ops && dev->ops->dump)
> + ret = (*dev->ops->dump)(dev, f);
> +
> + return ret;
> +}
> +
> +static const struct rte_rawdev_ops afu_rawdev_ops = {
> + .dev_info_get = NULL,
> + .dev_configure = afu_rawdev_configure,
> + .dev_start = afu_rawdev_start,
> + .dev_stop = afu_rawdev_stop,
> + .dev_close = afu_rawdev_close,
> + .dev_reset = afu_rawdev_reset,
> +
> + .queue_def_conf = NULL,
> + .queue_setup = NULL,
> + .queue_release = NULL,
> + .queue_count = NULL,
> +
> + .attr_get = NULL,
> + .attr_set = NULL,
> +
> + .enqueue_bufs = NULL,
> + .dequeue_bufs = NULL,
> +
> + .dump = afu_rawdev_dump,
> +
> + .xstats_get = NULL,
> + .xstats_get_names = NULL,
> + .xstats_get_by_name = NULL,
> + .xstats_reset = NULL,
> +
> + .firmware_status_get = NULL,
> + .firmware_version_get = NULL,
> + .firmware_load = NULL,
> + .firmware_unload = NULL,
> +
> + .dev_selftest = afu_rawdev_selftest,
> +};
> +
> +static int afu_shared_data_alloc(const char *name,
> + struct afu_shared_data **data, int socket_id) {
> + const struct rte_memzone *mz;
> + char mz_name[RTE_MEMZONE_NAMESIZE];
> + struct afu_shared_data *sd = NULL;
> + int init_mz = 0;
> +
> + if (!name || !data)
> + return -EINVAL;
> +
> + /* name format is afu_?|??:??.? which is unique */
> + snprintf(mz_name, sizeof(mz_name), "%s", name);
> +
> + mz = rte_memzone_lookup(mz_name);
> + if (!mz) {
> + mz = rte_memzone_reserve(mz_name, sizeof(struct
> afu_shared_data),
> + socket_id, 0);
> + init_mz = 1;
> + }
> +
> + if (!mz) {
> + IFPGA_RAWDEV_PMD_ERR("Allocate memory zone %s
> failed!",
> + mz_name);
> + return -ENOMEM;
> + }
> +
> + sd = (struct afu_shared_data *)mz->addr;
> +
> + if (init_mz) /* initialize memory zone on the first time */
> + rte_spinlock_init(&sd->lock);
> +
> + *data = sd;
> +
> + return 0;
> +}
> +
> +static int afu_rawdev_name_get(struct rte_afu_device *afu_dev, char
> *name,
> + size_t size)
> +{
> + int n = 0;
> +
> + if (!afu_dev || !name || !size)
> + return -EINVAL;
> +
> + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> + if (n >= (int)size) {
> + IFPGA_RAWDEV_PMD_ERR("Name of AFU device is too
> long!");
> + return -ENAMETOOLONG;
> + }
> +
> + return 0;
> +}
> +
> +static struct afu_ops *afu_ops_get(struct rte_afu_uuid *afu_id) {
> + struct afu_rawdev_drv *drv = NULL;
> +
> + if (!afu_id)
> + return NULL;
> +
> + TAILQ_FOREACH(drv, &afu_pmd_list, next) {
> + if ((drv->uuid.uuid_low == afu_id->uuid_low) &&
> + (drv->uuid.uuid_high == afu_id->uuid_high))
> + break;
> + }
> +
> + return drv ? drv->ops : NULL;
> +}
> +
> +static int afu_rawdev_create(struct rte_afu_device *afu_dev, int
> +socket_id) {
> + struct rte_rawdev *rawdev = NULL;
> + struct afu_rawdev *dev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + IFPGA_RAWDEV_PMD_INFO("Create raw device %s on NUMA
> node %d",
> + name, socket_id);
> +
> + /* Allocate device structure */
> + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct
> afu_rawdev),
> + socket_id);
> + if (!rawdev) {
> + IFPGA_RAWDEV_PMD_ERR("Unable to allocate raw device");
> + return -ENOMEM;
> + }
> +
> + rawdev->dev_ops = &afu_rawdev_ops;
> + rawdev->device = &afu_dev->device;
> + rawdev->driver_name = afu_dev->driver->driver.name;
> +
> + dev = afu_rawdev_get_priv(rawdev);
> + if (!dev)
> + goto cleanup;
> +
> + dev->rawdev = rawdev;
> + dev->port = afu_dev->id.port;
> + dev->addr = afu_dev->mem_resource[0].addr;
> + dev->ops = afu_ops_get(&afu_dev->id.uuid);
> + if (dev->ops == NULL) {
> + IFPGA_RAWDEV_PMD_ERR("Unsupported AFU device");
> + goto cleanup;
> + }
> +
> + if (dev->ops->init) {
> + ret = (*dev->ops->init)(dev);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to init %s",
> name);
> + goto cleanup;
> + }
> + }
> +
> + ret = afu_shared_data_alloc(name, &dev->sd, socket_id);
> + if (ret)
> + goto cleanup;
> +
> + return ret;
> +
> +cleanup:
> + rte_rawdev_pmd_release(rawdev);
> + return ret;
> +}
> +
> +static int afu_rawdev_destroy(struct rte_afu_device *afu_dev) {
> + struct rte_rawdev *rawdev = NULL;
> + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> + int ret = 0;
> +
> + if (!afu_dev)
> + return -EINVAL;
> +
> + ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
> + if (ret)
> + return ret;
> +
> + IFPGA_RAWDEV_PMD_INFO("Destroy raw device %s", name);
> +
> + rawdev = rte_rawdev_pmd_get_named_dev(name);
> + if (!rawdev) {
> + IFPGA_RAWDEV_PMD_ERR("Raw device %s not found",
> name);
> + return -EINVAL;
> + }
> +
> + /* rte_rawdev_close is called by pmd_release */
> + ret = rte_rawdev_pmd_release(rawdev);
> + if (ret)
> + IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed");
> +
> + return 0;
> +}
> +
> +static int afu_rawdev_probe(struct rte_afu_device *afu_dev) {
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> + return afu_rawdev_create(afu_dev, rte_socket_id()); }
> +
Function format issue.
> +static int afu_rawdev_remove(struct rte_afu_device *afu_dev) {
> + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> + return afu_rawdev_destroy(afu_dev);
> +}
> +
> +static struct rte_afu_driver afu_pmd = {
> + .id_table = afu_pmd_uuid_map,
> + .probe = afu_rawdev_probe,
> + .remove = afu_rawdev_remove
> +};
> +
> +RTE_PMD_REGISTER_AFU(afu_rawdev_driver, afu_pmd);
> +
> +static void update_uuid_map(void)
> +{
> + int i = 0;
> + struct rte_afu_uuid *afu_id = afu_pmd_uuid_map;
> + struct afu_rawdev_drv *drv;
> +
> + TAILQ_FOREACH(drv, &afu_pmd_list, next) {
> + if (i++ < AFU_RAWDEV_MAX_DRVS) {
> + afu_id->uuid_low = drv->uuid.uuid_low;
> + afu_id->uuid_high = drv->uuid.uuid_high;
> + afu_id++;
> + }
> + }
> + if (i <= AFU_RAWDEV_MAX_DRVS) {
> + afu_id->uuid_low = 0;
> + afu_id->uuid_high = 0;
> + }
> +}
> +
> +void afu_pmd_register(struct afu_rawdev_drv *driver) {
> + TAILQ_INSERT_TAIL(&afu_pmd_list, driver, next);
> + update_uuid_map();
> +}
> +
> +void afu_pmd_unregister(struct afu_rawdev_drv *driver) {
> + TAILQ_REMOVE(&afu_pmd_list, driver, next);
> + update_uuid_map();
> +}
> diff --git a/drivers/raw/ifpga/afu_pmd_core.h
> b/drivers/raw/ifpga/afu_pmd_core.h
> new file mode 100644
> index 0000000..4fad2c7
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_core.h
> @@ -0,0 +1,76 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __AFU_PMD_CORE_H__
> +#define __AFU_PMD_CORE_H__
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <stdint.h>
> +#include <stdio.h>
> +#include <unistd.h>
> +
> +#include <rte_spinlock.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "ifpga_rawdev.h"
> +
> +#define AFU_RAWDEV_MAX_DRVS 32
> +
> +struct afu_rawdev;
> +
> +struct afu_ops {
> + int (*init)(struct afu_rawdev *dev);
> + int (*config)(struct afu_rawdev *dev, void *config,
> + size_t config_size);
> + int (*start)(struct afu_rawdev *dev);
> + int (*stop)(struct afu_rawdev *dev);
> + int (*test)(struct afu_rawdev *dev);
> + int (*close)(struct afu_rawdev *dev);
> + int (*reset)(struct afu_rawdev *dev);
> + int (*dump)(struct afu_rawdev *dev, FILE *f); };
> +
> +struct afu_shared_data {
> + rte_spinlock_t lock; /* lock for multi-process access */ };
> +
> +struct afu_rawdev_drv {
> + TAILQ_ENTRY(afu_rawdev_drv) next;
> + struct rte_afu_uuid uuid;
> + struct afu_ops *ops;
> +};
> +
> +struct afu_rawdev {
> + struct rte_rawdev *rawdev; /* point to parent raw device */
> + struct afu_shared_data *sd; /* shared data for multi-process */
> + struct afu_ops *ops; /* device operation functions */
> + int port; /* index of port the AFU attached */
> + void *addr; /* base address of AFU registers */
> + void *priv; /* private driver data */ };
> +
> +static inline struct afu_rawdev *
> +afu_rawdev_get_priv(const struct rte_rawdev *rawdev) {
> + return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL; }
> +
> +void afu_pmd_register(struct afu_rawdev_drv *driver); void
> +afu_pmd_unregister(struct afu_rawdev_drv *driver);
> +
> +#define AFU_PMD_REGISTER(drv)\
> +RTE_INIT(afupmdinitfunc_ ##drv)\
> +{\
> + afu_pmd_register(&drv);\
> +}
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* __AFU_PMD_CORE_H__ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index aeccc17..d9a6f29 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -13,7 +13,7 @@ objs = [base_objs]
> deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> -sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c')
> +sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
>
> includes += include_directories('base') includes +=
> include_directories('../../net/ipn3ke')
> --
> 1.8.3.1
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
2022-06-15 6:55 ` Xu, Rosen
@ 2022-06-15 9:03 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-15 9:03 UTC (permalink / raw)
To: Xu, Rosen, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
> -----Original Message-----
> From: Xu, Rosen <rosen.xu@intel.com>
> Sent: Wednesday, June 15, 2022 14:55
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Zhang, Tianfei <tianfei.zhang@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
>
> Hi Wei,
>
> Some comments.
>
> Thanks,
> Rosen
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Thursday, June 09, 2022 15:37
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> > Wei <wei.huang@intel.com>
> > Subject: [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework
> >
> > AFU (Acceleration Function Unit) is part of FPGA and enumerated by
> > ifpga driver.
> > This driver implements common AFU device interfaces and exposes them
> > to application as standard raw device APIs.
> > Normally application can operate specified AFU as below, 1. call
> > rte_rawdev_pmd_get_named_dev() to find AFU device.
> > 2. call rte_rawdev_configure() to initialize AFU device.
> > 3. call rte_rawdev_selftest() to test AFU device.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > v2: fix typo
> > ---
> > v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
> > ---
> > v4: fix coding style issue and build error in FreeBSD13-64
> > ---
> > v5: split patch into several patches
> > ---
> > v6: move source files to ifpga and rename, use spinlock
> > ---
> > drivers/raw/ifpga/afu_pmd_core.c | 453
> > +++++++++++++++++++++++++++++++++++++++
> > drivers/raw/ifpga/afu_pmd_core.h | 76 +++++++
> > drivers/raw/ifpga/meson.build | 2 +-
> > 3 files changed, 530 insertions(+), 1 deletion(-) create mode 100644
> > drivers/raw/ifpga/afu_pmd_core.c create mode 100644
> > drivers/raw/ifpga/afu_pmd_core.h
> >
> > diff --git a/drivers/raw/ifpga/afu_pmd_core.c
> > b/drivers/raw/ifpga/afu_pmd_core.c
> > new file mode 100644
> > index 0000000..a24b517
> > --- /dev/null
> > +++ b/drivers/raw/ifpga/afu_pmd_core.c
> > @@ -0,0 +1,453 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + *
> > + * AFU is Acceleration Function Unit in FPGA, it is enumerated by ifpga
> pmd.
> > + * Suppose AFU is found in FPGA at PCI address 31:00.0, then you can
> > +create
> > + * and test a AFU device by following steps in application.
> > + * 1. rte_vdev_init("ifpga_rawdev_cfg0", "ifpga=31:00.0,port=0")
> > + * 2. rawdev = rte_rawdev_pmd_get_named_dev("afu_0|31:00.0")
> > + * 3. rte_rawdev_configure(rawdev->dev_id, &cfg, sizeof(cfg))
> > + * 4. rte_rawdev_selftest(rawdev->dev_id)
> > + * 5. rte_vdev_uninit("ifpga_rawdev_cfg0")
> > + *
> > + * AFU device name format used in rte_rawdev_pmd_get_named_dev is
> > + * "afu_[port]|[BDF]". Please refer to OPAE documentation for the
> > +meaning of
> > + * port. Each AFU device has specific configuration data, they are
> > +defined
> > + * in rte_pmd_afu.h.
> > + *
> > + */
> > +
> Could you split these notes? General speaking we just announce license in
> head of source file.
>
Agree
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <string.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memzone.h>
> > +#include <rte_rawdev_pmd.h>
> > +
> > +#include "afu_pmd_core.h"
> > +
> > +static struct rte_afu_uuid
> > afu_pmd_uuid_map[AFU_RAWDEV_MAX_DRVS+1];
> > +TAILQ_HEAD(afu_drv_list, afu_rawdev_drv); static struct afu_drv_list
> > +afu_pmd_list = TAILQ_HEAD_INITIALIZER(afu_pmd_list);
> > +
> > +static inline int afu_rawdev_trylock(struct afu_rawdev *dev) {
> > + if (!dev || !dev->sd)
> > + return 0;
> > +
> > + return rte_spinlock_trylock(&dev->sd->lock);
> > +}
> > +
> > +static inline void afu_rawdev_unlock(struct afu_rawdev *dev) {
> > + if (!dev || !dev->sd)
> > + return;
> > +
> > + rte_spinlock_unlock(&dev->sd->lock);
> > +}
> > +
> > +static int afu_rawdev_configure(const struct rte_rawdev *rawdev,
> > + rte_rawdev_obj_t config, size_t config_size) {
> > + struct afu_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > +
> > + dev = afu_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->config)
> > + ret = (*dev->ops->config)(dev, config, config_size);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_rawdev_start(struct rte_rawdev *rawdev) {
> > + struct afu_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > +
> > + dev = afu_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + ret = afu_rawdev_trylock(dev);
> > + if (!ret) {
> > + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please start it
> > later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->start)
> > + ret = (*dev->ops->start)(dev);
> > +
> > + afu_rawdev_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static void afu_rawdev_stop(struct rte_rawdev *rawdev) {
> > + struct afu_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > +
> > + dev = afu_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return;
> > +
> > + ret = afu_rawdev_trylock(dev);
> > + if (!ret) {
> > + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please stop it
> > later");
> > + return;
> > + }
> > +
> > + if (dev->ops && dev->ops->stop)
> > + ret = (*dev->ops->stop)(dev);
> > +
> > + afu_rawdev_unlock(dev);
> > +}
> > +
> > +static int afu_rawdev_close(struct rte_rawdev *rawdev) {
> > + struct afu_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > +
> > + dev = afu_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->close)
> > + ret = (*dev->ops->close)(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_rawdev_reset(struct rte_rawdev *rawdev) {
> > + struct afu_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > +
> > + dev = afu_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + ret = afu_rawdev_trylock(dev);
> > + if (!ret) {
> > + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please reset it
> > later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->reset)
> > + ret = (*dev->ops->reset)(dev);
> > +
> > + afu_rawdev_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_rawdev_selftest(uint16_t dev_id) {
> > + struct afu_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > +
> > + if (!rte_rawdev_pmd_is_valid_dev(dev_id))
> > + return -ENODEV;
> > +
> > + dev = afu_rawdev_get_priv(&rte_rawdevs[dev_id]);
> > + if (!dev)
> > + return -ENOENT;
> > +
> > + ret = afu_rawdev_trylock(dev);
> > + if (!ret) {
> > + IFPGA_RAWDEV_PMD_WARN("AFU is busy, please test it
> > later");
> > + return ret;
> > + }
> > +
> > + if (dev->ops && dev->ops->test)
> > + ret = (*dev->ops->test)(dev);
> > +
> > + afu_rawdev_unlock(dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int afu_rawdev_dump(struct rte_rawdev *rawdev, FILE *f) {
> > + struct afu_rawdev *dev = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > +
> > + dev = afu_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + return -ENODEV;
> > +
> > + if (dev->ops && dev->ops->dump)
> > + ret = (*dev->ops->dump)(dev, f);
> > +
> > + return ret;
> > +}
> > +
> > +static const struct rte_rawdev_ops afu_rawdev_ops = {
> > + .dev_info_get = NULL,
> > + .dev_configure = afu_rawdev_configure,
> > + .dev_start = afu_rawdev_start,
> > + .dev_stop = afu_rawdev_stop,
> > + .dev_close = afu_rawdev_close,
> > + .dev_reset = afu_rawdev_reset,
> > +
> > + .queue_def_conf = NULL,
> > + .queue_setup = NULL,
> > + .queue_release = NULL,
> > + .queue_count = NULL,
> > +
> > + .attr_get = NULL,
> > + .attr_set = NULL,
> > +
> > + .enqueue_bufs = NULL,
> > + .dequeue_bufs = NULL,
> > +
> > + .dump = afu_rawdev_dump,
> > +
> > + .xstats_get = NULL,
> > + .xstats_get_names = NULL,
> > + .xstats_get_by_name = NULL,
> > + .xstats_reset = NULL,
> > +
> > + .firmware_status_get = NULL,
> > + .firmware_version_get = NULL,
> > + .firmware_load = NULL,
> > + .firmware_unload = NULL,
> > +
> > + .dev_selftest = afu_rawdev_selftest, };
> > +
> > +static int afu_shared_data_alloc(const char *name,
> > + struct afu_shared_data **data, int socket_id) {
> > + const struct rte_memzone *mz;
> > + char mz_name[RTE_MEMZONE_NAMESIZE];
> > + struct afu_shared_data *sd = NULL;
> > + int init_mz = 0;
> > +
> > + if (!name || !data)
> > + return -EINVAL;
> > +
> > + /* name format is afu_?|??:??.? which is unique */
> > + snprintf(mz_name, sizeof(mz_name), "%s", name);
> > +
> > + mz = rte_memzone_lookup(mz_name);
> > + if (!mz) {
> > + mz = rte_memzone_reserve(mz_name, sizeof(struct
> > afu_shared_data),
> > + socket_id, 0);
> > + init_mz = 1;
> > + }
> > +
> > + if (!mz) {
> > + IFPGA_RAWDEV_PMD_ERR("Allocate memory zone %s
> > failed!",
> > + mz_name);
> > + return -ENOMEM;
> > + }
> > +
> > + sd = (struct afu_shared_data *)mz->addr;
> > +
> > + if (init_mz) /* initialize memory zone on the first time */
> > + rte_spinlock_init(&sd->lock);
> > +
> > + *data = sd;
> > +
> > + return 0;
> > +}
> > +
> > +static int afu_rawdev_name_get(struct rte_afu_device *afu_dev, char
> > *name,
> > + size_t size)
> > +{
> > + int n = 0;
> > +
> > + if (!afu_dev || !name || !size)
> > + return -EINVAL;
> > +
> > + n = snprintf(name, size, "afu_%s", afu_dev->device.name);
> > + if (n >= (int)size) {
> > + IFPGA_RAWDEV_PMD_ERR("Name of AFU device is too
> > long!");
> > + return -ENAMETOOLONG;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_ops *afu_ops_get(struct rte_afu_uuid *afu_id) {
> > + struct afu_rawdev_drv *drv = NULL;
> > +
> > + if (!afu_id)
> > + return NULL;
> > +
> > + TAILQ_FOREACH(drv, &afu_pmd_list, next) {
> > + if ((drv->uuid.uuid_low == afu_id->uuid_low) &&
> > + (drv->uuid.uuid_high == afu_id->uuid_high))
> > + break;
> > + }
> > +
> > + return drv ? drv->ops : NULL;
> > +}
> > +
> > +static int afu_rawdev_create(struct rte_afu_device *afu_dev, int
> > +socket_id) {
> > + struct rte_rawdev *rawdev = NULL;
> > + struct afu_rawdev *dev = NULL;
> > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > + int ret = 0;
> > +
> > + if (!afu_dev)
> > + return -EINVAL;
> > +
> > + ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
> > + if (ret)
> > + return ret;
> > +
> > + IFPGA_RAWDEV_PMD_INFO("Create raw device %s on NUMA
> > node %d",
> > + name, socket_id);
> > +
> > + /* Allocate device structure */
> > + rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct
> > afu_rawdev),
> > + socket_id);
> > + if (!rawdev) {
> > + IFPGA_RAWDEV_PMD_ERR("Unable to allocate raw device");
> > + return -ENOMEM;
> > + }
> > +
> > + rawdev->dev_ops = &afu_rawdev_ops;
> > + rawdev->device = &afu_dev->device;
> > + rawdev->driver_name = afu_dev->driver->driver.name;
> > +
> > + dev = afu_rawdev_get_priv(rawdev);
> > + if (!dev)
> > + goto cleanup;
> > +
> > + dev->rawdev = rawdev;
> > + dev->port = afu_dev->id.port;
> > + dev->addr = afu_dev->mem_resource[0].addr;
> > + dev->ops = afu_ops_get(&afu_dev->id.uuid);
> > + if (dev->ops == NULL) {
> > + IFPGA_RAWDEV_PMD_ERR("Unsupported AFU device");
> > + goto cleanup;
> > + }
> > +
> > + if (dev->ops->init) {
> > + ret = (*dev->ops->init)(dev);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_ERR("Failed to init %s",
> > name);
> > + goto cleanup;
> > + }
> > + }
> > +
> > + ret = afu_shared_data_alloc(name, &dev->sd, socket_id);
> > + if (ret)
> > + goto cleanup;
> > +
> > + return ret;
> > +
> > +cleanup:
> > + rte_rawdev_pmd_release(rawdev);
> > + return ret;
> > +}
> > +
> > +static int afu_rawdev_destroy(struct rte_afu_device *afu_dev) {
> > + struct rte_rawdev *rawdev = NULL;
> > + char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
> > + int ret = 0;
> > +
> > + if (!afu_dev)
> > + return -EINVAL;
> > +
> > + ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
> > + if (ret)
> > + return ret;
> > +
> > + IFPGA_RAWDEV_PMD_INFO("Destroy raw device %s", name);
> > +
> > + rawdev = rte_rawdev_pmd_get_named_dev(name);
> > + if (!rawdev) {
> > + IFPGA_RAWDEV_PMD_ERR("Raw device %s not found",
> > name);
> > + return -EINVAL;
> > + }
> > +
> > + /* rte_rawdev_close is called by pmd_release */
> > + ret = rte_rawdev_pmd_release(rawdev);
> > + if (ret)
> > + IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed");
> > +
> > + return 0;
> > +}
> > +
> > +static int afu_rawdev_probe(struct rte_afu_device *afu_dev) {
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > + return afu_rawdev_create(afu_dev, rte_socket_id()); }
> > +
> Function format issue.
>
> > +static int afu_rawdev_remove(struct rte_afu_device *afu_dev) {
> > + IFPGA_RAWDEV_PMD_FUNC_TRACE();
> > + return afu_rawdev_destroy(afu_dev);
> > +}
> > +
> > +static struct rte_afu_driver afu_pmd = {
> > + .id_table = afu_pmd_uuid_map,
> > + .probe = afu_rawdev_probe,
> > + .remove = afu_rawdev_remove
> > +};
> > +
> > +RTE_PMD_REGISTER_AFU(afu_rawdev_driver, afu_pmd);
> > +
> > +static void update_uuid_map(void)
> > +{
> > + int i = 0;
> > + struct rte_afu_uuid *afu_id = afu_pmd_uuid_map;
> > + struct afu_rawdev_drv *drv;
> > +
> > + TAILQ_FOREACH(drv, &afu_pmd_list, next) {
> > + if (i++ < AFU_RAWDEV_MAX_DRVS) {
> > + afu_id->uuid_low = drv->uuid.uuid_low;
> > + afu_id->uuid_high = drv->uuid.uuid_high;
> > + afu_id++;
> > + }
> > + }
> > + if (i <= AFU_RAWDEV_MAX_DRVS) {
> > + afu_id->uuid_low = 0;
> > + afu_id->uuid_high = 0;
> > + }
> > +}
> > +
> > +void afu_pmd_register(struct afu_rawdev_drv *driver) {
> > + TAILQ_INSERT_TAIL(&afu_pmd_list, driver, next);
> > + update_uuid_map();
> > +}
> > +
> > +void afu_pmd_unregister(struct afu_rawdev_drv *driver) {
> > + TAILQ_REMOVE(&afu_pmd_list, driver, next);
> > + update_uuid_map();
> > +}
> > diff --git a/drivers/raw/ifpga/afu_pmd_core.h
> > b/drivers/raw/ifpga/afu_pmd_core.h
> > new file mode 100644
> > index 0000000..4fad2c7
> > --- /dev/null
> > +++ b/drivers/raw/ifpga/afu_pmd_core.h
> > @@ -0,0 +1,76 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + */
> > +
> > +#ifndef __AFU_PMD_CORE_H__
> > +#define __AFU_PMD_CORE_H__
> > +
> > +#ifdef __cplusplus
> > +extern "C" {
> > +#endif
> > +
> > +#include <stdint.h>
> > +#include <stdio.h>
> > +#include <unistd.h>
> > +
> > +#include <rte_spinlock.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +#include "ifpga_rawdev.h"
> > +
> > +#define AFU_RAWDEV_MAX_DRVS 32
> > +
> > +struct afu_rawdev;
> > +
> > +struct afu_ops {
> > + int (*init)(struct afu_rawdev *dev);
> > + int (*config)(struct afu_rawdev *dev, void *config,
> > + size_t config_size);
> > + int (*start)(struct afu_rawdev *dev);
> > + int (*stop)(struct afu_rawdev *dev);
> > + int (*test)(struct afu_rawdev *dev);
> > + int (*close)(struct afu_rawdev *dev);
> > + int (*reset)(struct afu_rawdev *dev);
> > + int (*dump)(struct afu_rawdev *dev, FILE *f); };
> > +
> > +struct afu_shared_data {
> > + rte_spinlock_t lock; /* lock for multi-process access */ };
> > +
> > +struct afu_rawdev_drv {
> > + TAILQ_ENTRY(afu_rawdev_drv) next;
> > + struct rte_afu_uuid uuid;
> > + struct afu_ops *ops;
> > +};
> > +
> > +struct afu_rawdev {
> > + struct rte_rawdev *rawdev; /* point to parent raw device */
> > + struct afu_shared_data *sd; /* shared data for multi-process */
> > + struct afu_ops *ops; /* device operation functions */
> > + int port; /* index of port the AFU attached */
> > + void *addr; /* base address of AFU registers */
> > + void *priv; /* private driver data */ };
> > +
> > +static inline struct afu_rawdev *
> > +afu_rawdev_get_priv(const struct rte_rawdev *rawdev) {
> > + return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL; }
> > +
> > +void afu_pmd_register(struct afu_rawdev_drv *driver); void
> > +afu_pmd_unregister(struct afu_rawdev_drv *driver);
> > +
> > +#define AFU_PMD_REGISTER(drv)\
> > +RTE_INIT(afupmdinitfunc_ ##drv)\
> > +{\
> > + afu_pmd_register(&drv);\
> > +}
> > +
> > +#ifdef __cplusplus
> > +}
> > +#endif
> > +
> > +#endif /* __AFU_PMD_CORE_H__ */
> > diff --git a/drivers/raw/ifpga/meson.build
> > b/drivers/raw/ifpga/meson.build index aeccc17..d9a6f29 100644
> > --- a/drivers/raw/ifpga/meson.build
> > +++ b/drivers/raw/ifpga/meson.build
> > @@ -13,7 +13,7 @@ objs = [base_objs]
> > deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> > 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
> >
> > -sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c')
> > +sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c',
> > +'afu_pmd_core.c')
> >
> > includes += include_directories('base') includes +=
> > include_directories('../../net/ipn3ke')
> > --
> > 1.8.3.1
>
> Reviewed-by: Rosen Xu <rosen.xu@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-09 7:37 ` [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
@ 2022-06-09 7:37 ` Wei Huang
2022-06-10 6:11 ` Zhang, Tianfei
2022-06-15 7:07 ` Xu, Rosen
2022-06-09 7:37 ` [PATCH v7 3/5] raw/ifpga: add HE-LPBK " Wei Huang
` (3 subsequent siblings)
5 siblings, 2 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 7:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
and DMA is used to test local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
v2: move source files to ifpga and rename, refine code
---
v3: fix Ubuntu 20.04 ARM build
---
drivers/raw/ifpga/afu_pmd_core.h | 19 +
drivers/raw/ifpga/afu_pmd_n3000.c | 2019 +++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_n3000.h | 339 +++++++
drivers/raw/ifpga/meson.build | 3 +-
drivers/raw/ifpga/rte_pmd_afu.h | 97 ++
5 files changed, 2476 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
diff --git a/drivers/raw/ifpga/afu_pmd_core.h b/drivers/raw/ifpga/afu_pmd_core.h
index 4fad2c7..a938172 100644
--- a/drivers/raw/ifpga/afu_pmd_core.h
+++ b/drivers/raw/ifpga/afu_pmd_core.h
@@ -14,6 +14,7 @@
#include <unistd.h>
#include <rte_spinlock.h>
+#include <rte_cycles.h>
#include <rte_bus_ifpga.h>
#include <rte_rawdev.h>
@@ -60,6 +61,24 @@ struct afu_rawdev {
return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
}
+#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
+#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines */
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
void afu_pmd_register(struct afu_rawdev_drv *driver);
void afu_pmd_unregister(struct afu_rawdev_drv *driver);
diff --git a/drivers/raw/ifpga/afu_pmd_n3000.c b/drivers/raw/ifpga/afu_pmd_n3000.c
new file mode 100644
index 0000000..14f7fe0
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_n3000.c
@@ -0,0 +1,2019 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_n3000.h"
+
+static int nlb_afu_config(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
+ cl, stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+ IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ IFPGA_RAWDEV_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free_data_buf;
+ }
+
+ return 0;
+
+free_data_buf:
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+free_dma_buf:
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ IFPGA_RAWDEV_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ IFPGA_RAWDEV_PMD_ERR("Timeout");
+ ret = -ETIMEDOUT;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ IFPGA_RAWDEV_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.len = %u", desc->len);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ IFPGA_RAWDEV_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ IFPGA_RAWDEV_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
+ ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(uintptr_t)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(uintptr_t)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(uintptr_t)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(uintptr_t)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ IFPGA_RAWDEV_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double getTime(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ IFPGA_RAWDEV_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ IFPGA_RAWDEV_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ IFPGA_RAWDEV_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += getTime(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+#ifdef VFIO_PRESENT
+static int dma_afu_set_irqs(struct afu_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ IFPGA_RAWDEV_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+#endif
+
+static void *n3000_afu_get_port_addr(struct afu_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ IFPGA_RAWDEV_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ IFPGA_RAWDEV_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr)
+ return -ENOMEM;
+
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dest;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release_dest:
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+release_src:
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+release_dsm:
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ IFPGA_RAWDEV_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+#ifdef VFIO_PRESENT
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ IFPGA_RAWDEV_PMD_ERR("DMA interrupt setup failed");
+#endif
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ IFPGA_RAWDEV_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ IFPGA_RAWDEV_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ IFPGA_RAWDEV_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ IFPGA_RAWDEV_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ IFPGA_RAWDEV_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ IFPGA_RAWDEV_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+static struct afu_rawdev_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
+
+AFU_PMD_REGISTER(n3000_afu_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_n3000.h b/drivers/raw/ifpga/afu_pmd_n3000.h
new file mode 100644
index 0000000..67e83fe
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_n3000.h
@@ -0,0 +1,339 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_N3000_H_
+#define _AFU_PMD_N3000_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_N3000_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index d9a6f29..2294ab5 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -13,7 +13,8 @@ objs = [base_objs]
deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
-sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
+sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
+ 'afu_pmd_n3000.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
new file mode 100644
index 0000000..f14a053
--- /dev/null
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
2022-06-09 7:37 ` [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
@ 2022-06-10 6:11 ` Zhang, Tianfei
2022-06-15 7:07 ` Xu, Rosen
1 sibling, 0 replies; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-10 6:11 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 9, 2022 3:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
>
> N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
> and DMA is used to test local memory.
> This driver initialize the modules and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: move source files to ifpga and rename, refine code
> ---
> v3: fix Ubuntu 20.04 ARM build
> ---
> drivers/raw/ifpga/afu_pmd_core.h | 19 +
> drivers/raw/ifpga/afu_pmd_n3000.c | 2019
> +++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_n3000.h | 339 +++++++
> drivers/raw/ifpga/meson.build | 3 +-
> drivers/raw/ifpga/rte_pmd_afu.h | 97 ++
> 5 files changed, 2476 insertions(+), 1 deletion(-)
> create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
> create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
> create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_core.h
> b/drivers/raw/ifpga/afu_pmd_core.h
> index 4fad2c7..a938172 100644
> --- a/drivers/raw/ifpga/afu_pmd_core.h
> +++ b/drivers/raw/ifpga/afu_pmd_core.h
> @@ -14,6 +14,7 @@
> #include <unistd.h>
>
> #include <rte_spinlock.h>
> +#include <rte_cycles.h>
> #include <rte_bus_ifpga.h>
> #include <rte_rawdev.h>
>
> @@ -60,6 +61,24 @@ struct afu_rawdev {
> return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
> }
>
> +#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
> +#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines */
> +#define MHZ(f) ((f) * 1000000)
> +
> +#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
> +({ \
> + uint64_t __wait = 0; \
> + uint64_t __invl = (invl); \
> + uint64_t __timeout = (timeout); \
> + for (; __wait <= __timeout; __wait += __invl) { \
> + (val) = *(addr); \
> + if (cond) \
> + break; \
> + rte_delay_ms(__invl); \
> + } \
> + (cond) ? 0 : 1; \
> +})
> +
> void afu_pmd_register(struct afu_rawdev_drv *driver);
> void afu_pmd_unregister(struct afu_rawdev_drv *driver);
>
> diff --git a/drivers/raw/ifpga/afu_pmd_n3000.c
> b/drivers/raw/ifpga/afu_pmd_n3000.c
> new file mode 100644
> index 0000000..14f7fe0
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_n3000.c
> @@ -0,0 +1,2019 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_pmd_core.h"
> +#include "afu_pmd_n3000.h"
> +
> +static int nlb_afu_config(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->nlb_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + if (cfg->cache_policy == NLB_WRPUSH_I)
> + v.wrpush_i = 1;
> + else
> + v.wrthru_en = cfg->cache_policy;
> +
> + if (cfg->cache_hint == NLB_RDLINE_MIXED)
> + v.rdsel = 3;
> + else
> + v.rdsel = cfg->cache_hint;
> +
> + v.mode = cfg->mode;
> + v.chsel = cfg->read_vc;
> + v.wr_chsel = cfg->write_vc;
> + v.wrfence_chsel = cfg->wrfence_vc;
> + v.wrthru_en = cfg->cache_policy;
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void nlb_afu_report(struct afu_rawdev *dev, uint32_t cl)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_dsm_status *stat = NULL;
> + uint64_t ticks = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + cfg = &priv->nlb_cfg;
> + stat = priv->nlb_ctx.status_ptr;
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0)
> + cfg->freq_mhz = 200;
> +
> + num = (double)stat->num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat->num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
> + "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
> + printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
> + cl, stat->num_reads, stat->num_writes, ticks,
> + rd_bw / 1e9, wr_bw / 1e9);
> +}
> +
> +static int nlb_afu_test(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + ctx = &priv->nlb_ctx;
> + cfg = &priv->nlb_cfg;
> +
> + /* initialize registers */
> + IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx-
> >dsm_iova);
> + rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
> + IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
> +
> + ret = nlb_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl, ctx->addr + CSR_NUM_LINES);
> +
> + rte_delay_us(10);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + nlb_afu_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + IFPGA_RAWDEV_PMD_ERR("Data mismatch @
> %u", i);
> + break;
> + }
> + }
> + }
> +
> +end:
> + return ret;
> +}
> +
> +static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
> +{
> + int i = 0;
> +
> + if (!ctx)
> + return;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + rte_free(ctx->dma_buf[i]);
> + ctx->dma_buf[i] = NULL;
> + }
> +
> + rte_free(ctx->data_buf);
> + ctx->data_buf = NULL;
> +
> + rte_free(ctx->ref_buf);
> + ctx->ref_buf = NULL;
> +}
> +
> +static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
> + struct rte_pmd_afu_dma_cfg *cfg)
> +{
> + size_t page_sz = sysconf(_SC_PAGE_SIZE);
> + int i, ret = 0;
> +
> + if (!ctx || !cfg)
> + return -EINVAL;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
> + TEST_MEM_ALIGN);
> + if (!ctx->dma_buf[i]) {
> + ret = -ENOMEM;
> + goto free_dma_buf;
> + }
> + ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
> + if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto free_dma_buf;
> + }
> + }
> +
> + ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->data_buf) {
> + ret = -ENOMEM;
> + goto free_dma_buf;
> + }
> +
> + ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->ref_buf) {
> + ret = -ENOMEM;
> + goto free_data_buf;
> + }
> +
> + return 0;
> +
> +free_data_buf:
> + rte_free(ctx->data_buf);
> + ctx->data_buf = NULL;
> +free_dma_buf:
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + rte_free(ctx->dma_buf[i]);
> + ctx->dma_buf[i] = NULL;
> + }
> + return ret;
> +}
> +
> +static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
> +{
> + int *ptr = NULL;
> + size_t i = 0;
> + size_t dword_size = 0;
> +
> + if (!ctx || !size)
> + return;
> +
> + ptr = (int *)ctx->ref_buf;
> +
> + if (ctx->pattern) {
> + memset(ptr, ctx->pattern, size);
> + } else {
> + srand(99);
> + dword_size = size >> 2;
> + for (i = 0; i < dword_size; i++)
> + *ptr++ = rand();
> + }
> + rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
> +}
> +
> +static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
> +{
> + uint8_t *src = NULL;
> + uint8_t *dst = NULL;
> + size_t i = 0;
> + int n = 0;
> +
> + if (!ctx || !size)
> + return -EINVAL;
> +
> + src = (uint8_t *)ctx->ref_buf;
> + dst = (uint8_t *)ctx->data_buf;
> +
> + if (memcmp(src, dst, size)) {
> + printf("Transfer is corrupted\n");
> + if (ctx->verbose) {
> + for (i = 0; i < size; i++) {
> + if (*src != *dst) {
> + if (++n >= ERR_CHECK_LIMIT)
> + break;
> + printf("Mismatch at 0x%zx, "
> + "Expected %02x Actual
> %02x\n",
> + i, *src, *dst);
> + }
> + src++;
> + dst++;
> + }
> + if (n < ERR_CHECK_LIMIT) {
> + printf("Found %d error bytes\n", n);
> + } else {
> + printf("......\n");
> + printf("Found more than %d error bytes\n", n);
> + }
> + }
> + return -1;
> + }
> +
> + printf("Transfer is verified\n");
> + return 0;
> +}
> +
> +static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + rte_write64(*host_addr, dev_addr);
> +}
> +
> +static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + *host_addr = rte_read64(dev_addr);
> +}
> +
> +static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
> +{
> + uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
> +
> + if (!ctx)
> + return;
> +
> + if (requested_page != ctx->cur_ase_page) {
> + rte_write64(requested_page, ctx->ase_ctrl_addr);
> + ctx->cur_ase_page = requested_page;
> + }
> +}
> +
> +static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)",
> host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
> +
> + /* write back to device */
> + rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
> +
> + return 0;
> +}
> +
> +static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(dst))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(dst)) {
> + /* Write out a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> +
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Write out blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= dst & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)src, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Write out remaining DWORD */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t count)
> +{
> + uint64_t dst = *dst_ptr;
> + uint64_t src = *src_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + count);
> +
> + /* aligns address to 8 byte using dst masking method */
> + if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + src += unaligned_size;
> + dst += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_write(ctx, &dst, &src, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using dst masking method */
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)",
> host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
> +
> + return 0;
> +}
> +
> +static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64"
> (0x%"PRIx64")", dst, src,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(src))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(src)) {
> + /* Read a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Read blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= src & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)dst, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Read remaining DWORD */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + count);
> +
> + /* Aligns address to 8 byte using src masking method */
> + if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + dst += unaligned_size;
> + src += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_read(ctx, &src, &dst, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using src masking method */
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static void clear_interrupt(struct dma_afu_ctx *ctx)
> +{
> + /* clear interrupt by writing 1 to IRQ bit in status register */
> + msgdma_status status;
> +
> + if (!ctx)
> + return;
> +
> + status.csr = 0;
> + status.irq = 1;
> + rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
> +}
> +
> +static int poll_interrupt(struct dma_afu_ctx *ctx)
> +{
> + struct pollfd pfd = {0};
> + uint64_t count = 0;
> + ssize_t bytes_read = 0;
> + int poll_ret = 0;
> + int ret = 0;
> +
> + if (!ctx || (ctx->event_fd < 0))
> + return -EINVAL;
> +
> + pfd.fd = ctx->event_fd;
> + pfd.events = POLLIN;
> + poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
> + if (poll_ret < 0) {
> + IFPGA_RAWDEV_PMD_ERR("Error %s", strerror(errno));
> + ret = -EFAULT;
> + goto out;
> + } else if (poll_ret == 0) {
> + IFPGA_RAWDEV_PMD_ERR("Timeout");
> + ret = -ETIMEDOUT;
> + } else {
> + bytes_read = read(pfd.fd, &count, sizeof(count));
> + if (bytes_read > 0) {
> + if (ctx->verbose)
> + IFPGA_RAWDEV_PMD_DEBUG("Successful, ret
> %d, cnt %"PRIu64,
> + poll_ret, count);
> + ret = 0;
> + } else {
> + IFPGA_RAWDEV_PMD_ERR("Failed %s", bytes_read > 0
> ?
> + strerror(errno) : "zero bytes read");
> + ret = -EIO;
> + }
> + }
> +out:
> + clear_interrupt(ctx);
> + return ret;
> +}
> +
> +static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
> +{
> + msgdma_status status;
> + uint64_t fpga_queue_full = 0;
> +
> + if (!ctx)
> + return;
> +
> + if (ctx->verbose) {
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_address =
> 0x%x%08x",
> + desc->rd_address_ext, desc->rd_address);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_address =
> 0x%x%08x",
> + desc->wr_address_ext, desc->wr_address);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.len = %u", desc-
> >len);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_burst_count =
> %u",
> + desc->wr_burst_count);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_burst_count =
> %u",
> + desc->rd_burst_count);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_stride %u", desc-
> >wr_stride);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_stride %u", desc-
> >rd_stride);
> + }
> +
> + do {
> + status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
> + if (fpga_queue_full++ > 100000000) {
> + IFPGA_RAWDEV_PMD_DEBUG("DMA queue full retry");
> + fpga_queue_full = 0;
> + }
> + } while (status.desc_buf_full);
> +
> + blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
> + sizeof(*desc));
> +}
> +
> +static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + int count, int is_last_desc, fpga_dma_type type, int intr_en)
> +{
> + msgdma_ext_desc *desc = NULL;
> + int alignment_offset = 0;
> + int segment_size = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + /* src, dst and count must be 64-byte aligned */
> + if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
> + !IS_DMA_ALIGNED(count))
> + return -EINVAL;
> + memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
> +
> + /* these fields are fixed for all DMA transfers */
> + desc = ctx->desc_buf;
> + desc->seq_num = 0;
> + desc->wr_stride = 1;
> + desc->rd_stride = 1;
> + desc->control.go = 1;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + else
> + desc->control.transfer_irq_en = 0;
> +
> + if (!is_last_desc)
> + desc->control.early_done_en = 1;
> + else
> + desc->control.early_done_en = 0;
> +
> + if (type == FPGA_TO_FPGA) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
> + send_descriptor(ctx, desc);
> + } else {
> + /* check CCIP (host) address is aligned to 4CL (256B) */
> + alignment_offset = (type == HOST_TO_FPGA)
> + ? (src % CCIP_ALIGN_BYTES) : (dst %
> CCIP_ALIGN_BYTES);
> + /* performing a short transfer to get aligned */
> + if (alignment_offset != 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* count isn't large enough to hit next 4CL boundary */
> + if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = CCIP_ALIGN_BYTES
> + - alignment_offset;
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + /* post short transfer to align to a 4CL (256 byte) */
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* at this point we are 4CL (256 byte) aligned */
> + if (count >= CCIP_ALIGN_BYTES) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* buffer ends on 4CL boundary */
> + if ((count % CCIP_ALIGN_BYTES) == 0) {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = count
> + - (count % CCIP_ALIGN_BYTES);
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* post short transfer to handle the remainder */
> + if (count > 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + send_descriptor(ctx, desc);
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int issue_magic(struct dma_afu_ctx *ctx)
> +{
> + *(ctx->magic_buf) = 0ULL;
> + return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
> + DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
> +}
> +
> +static void wait_magic(struct dma_afu_ctx *ctx)
> +{
> + int magic_timeout = 0;
> +
> + if (!ctx)
> + return;
> +
> + poll_interrupt(ctx);
> + while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
> + if (magic_timeout++ > 1000) {
> + IFPGA_RAWDEV_PMD_ERR("DMA magic operation
> timeout");
> + magic_timeout = 0;
> + break;
> + }
> + }
> + *(ctx->magic_buf) = 0ULL;
> +}
> +
> +static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, int *intr_issued)
> +{
> + int intr_en = 0;
> + int ret = 0;
> +
> + if (!ctx || !intr_issued)
> + return -EINVAL;
> +
> + src += chunk * ctx->dma_buf_size;
> + dst += chunk * ctx->dma_buf_size;
> +
> + if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) ||
> is_last_chunk) {
> + if (*intr_issued) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> + intr_en = 1;
> + }
> +
> + chunk %= NUM_DMA_BUF;
> + rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
> + ctx->dma_buf_size);
> + ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
> + ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
> + if (intr_en)
> + *intr_issued = 1;
> +
> + return ret;
> +}
> +
> +static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t
> src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t dma_tx_bytes = 0;
> + uint64_t offset = 0;
> + int issued_intr = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)",
> src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(dst)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_host_to_fpga(ctx, &dst, &src, count_left);
> +
> + aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - dst;
> + ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_tx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1), &issued_intr);
> + if (ret)
> + return ret;
> + }
> +
> + if (issued_intr) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + if (count_left) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_tx_bytes = i * DMA_ALIGN_BYTES;
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to DMA",
> + dma_tx_bytes);
> + rte_memcpy(ctx->dma_buf[0],
> + (void *)(uintptr_t)(src + offset),
> + dma_tx_bytes);
> + ret = do_dma(ctx, dst + offset,
> + DMA_HOST_ADDR(ctx->dma_iova[0]),
> + dma_tx_bytes, 1, HOST_TO_FPGA, 1);
> + if (ret)
> + return ret;
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + count_left -= dma_tx_bytes;
> + if (count_left) {
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to ASE",
> + count_left);
> + dst += offset + dma_tx_bytes;
> + src += offset + dma_tx_bytes;
> + ret = ase_host_to_fpga(ctx, &dst, &src,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
> +{
> + uint64_t i = chunk % NUM_DMA_BUF;
> + uint64_t n = *rx_count;
> + uint64_t num_pending = 0;
> + int ret = 0;
> +
> + if (!ctx || !wf_issued)
> + return -EINVAL;
> +
> + ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
> + src + chunk * ctx->dma_buf_size,
> + ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> +
> + num_pending = chunk - n + 1;
> + if (num_pending == HALF_DMA_BUF) {
> + ret = issue_magic(ctx);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
> + if (*wf_issued) {
> + wait_magic(ctx);
> + for (i = 0; i < HALF_DMA_BUF; i++) {
> + rte_memcpy((void *)(uintptr_t)(dst +
> + n * ctx->dma_buf_size),
> + ctx->dma_buf[n % NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + n++;
> + }
> + *wf_issued = 0;
> + *rx_count = n;
> + }
> + ret = issue_magic(ctx);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t
> src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t pending_buf = 0;
> + uint64_t dma_rx_bytes = 0;
> + uint64_t offset = 0;
> + int wf_issued = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)",
> src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(src)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_fpga_to_host(ctx, &src, &dst, count_left);
> +
> + aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - src;
> + ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_rx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1),
> + &pending_buf, &wf_issued);
> + if (ret)
> + return ret;
> + }
> +
> + if (wf_issued)
> + wait_magic(ctx);
> +
> + /* clear out final dma memcpy operations */
> + while (pending_buf < dma_chunks) {
> + /* constant size transfer; no length check required */
> + rte_memcpy((void *)(uintptr_t)(dst +
> + pending_buf * ctx->dma_buf_size),
> + ctx->dma_buf[pending_buf %
> NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + pending_buf++;
> + }
> +
> + if (count_left > 0) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_rx_bytes = i * DMA_ALIGN_BYTES;
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to DMA",
> + dma_rx_bytes);
> + ret = do_dma(ctx,
> + DMA_HOST_ADDR(ctx->dma_iova[0]),
> + src + offset,
> + dma_rx_bytes, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + rte_memcpy((void *)(uintptr_t)(dst + offset),
> + ctx->dma_buf[0], dma_rx_bytes);
> + }
> +
> + count_left -= dma_rx_bytes;
> + if (count_left) {
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to ASE",
> + count_left);
> + dst += offset + dma_rx_bytes;
> + src += offset + dma_rx_bytes;
> + ret = ase_fpga_to_host(ctx, &src, &dst,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t
> src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t dma_chunks = 0;
> + uint64_t offset = 0;
> + uint32_t tx_chunks = 0;
> + uint64_t *tmp_buf = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)",
> src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
> + && IS_DMA_ALIGNED(count_left)) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + if ((((i + 1) % NUM_DMA_BUF) == 0) ||
> + (i == (dma_chunks - 1))) {
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + }
> +
> + if (count_left > 0) {
> + IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64"
> to DMA", count_left);
> + ret = do_dma(ctx, dst + offset, src + offset,
> + count_left, 1, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + } else {
> + if ((src < dst) && (src + count_left > dst)) {
> + IFPGA_RAWDEV_PMD_ERR("Overlapping: 0x%"PRIx64
> + " -> 0x%"PRIx64" (0x%"PRIx64")",
> + src, dst, count_left);
> + return -EINVAL;
> + }
> + tx_chunks = count_left / ctx->dma_buf_size;
> + offset = tx_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
> + " (%u...0x%"PRIx64")",
> + src, dst, tx_chunks, count_left);
> + tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
> + DMA_ALIGN_BYTES);
> + for (i = 0; i < tx_chunks; i++) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx,
> + dst + i * ctx->dma_buf_size,
> + (uint64_t)tmp_buf, ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + }
> +
> + if (count_left > 0) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + offset, count_left);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx, dst + offset,
> + (uint64_t)tmp_buf, count_left);
> + if (ret)
> + goto free_buf;
> + }
> +free_buf:
> + rte_free(tmp_buf);
> + }
> +
> + return ret;
> +}
> +
> +static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
> + uint64_t src, size_t count, fpga_dma_type type)
> +{
> + int ret = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (type == HOST_TO_FPGA)
> + ret = dma_host_to_fpga(ctx, dst, src, count);
> + else if (type == FPGA_TO_HOST)
> + ret = dma_fpga_to_host(ctx, dst, src, count);
> + else if (type == FPGA_TO_FPGA)
> + ret = dma_fpga_to_fpga(ctx, dst, src, count);
> + else
> + return -EINVAL;
> +
> + return ret;
> +}
> +
> +static double getTime(struct timespec start, struct timespec end)
> +{
> + uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
> + + end.tv_nsec - start.tv_nsec;
> + return (double)diff / (double)1000000000L;
> +}
> +
> +#define SWEEP_ITERS 1
> +static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
> + uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
> +{
> + struct timespec start, end;
> + uint64_t test_size = 0;
> + uint64_t *dma_buf_ptr = NULL;
> + double throughput, total_time = 0.0;
> + int i = 0;
> + int ret = 0;
> +
> + if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
> + IFPGA_RAWDEV_PMD_ERR("Buffer for DMA test is not
> allocated");
> + return -EINVAL;
> + }
> +
> + if (length < (buf_offset + size_decrement)) {
> + IFPGA_RAWDEV_PMD_ERR("Test length does not match
> unaligned parameter");
> + return -EINVAL;
> + }
> + test_size = length - (buf_offset + size_decrement);
> + if ((ddr_offset + test_size) > ctx->mem_size) {
> + IFPGA_RAWDEV_PMD_ERR("Test is out of DDR memory
> space");
> + return -EINVAL;
> + }
> +
> + dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
> + printf("Sweep Host %p to FPGA 0x%"PRIx64
> + " with 0x%"PRIx64" bytes ...\n",
> + (void *)dma_buf_ptr, ddr_offset, test_size);
> +
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, ddr_offset,
> (uint64_t)dma_buf_ptr,
> + test_size, HOST_TO_FPGA);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes
> ...\n",
> + ddr_offset, (void *)dma_buf_ptr, test_size);
> +
> + total_time = 0.0;
> + memset((char *)dma_buf_ptr, 0, test_size);
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr,
> ddr_offset,
> + test_size, FPGA_TO_HOST);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Verifying buffer ...\n");
> + return dma_afu_buf_verify(ctx, test_size);
> +}
> +
> +static int dma_afu_test(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_dma_cfg *cfg = NULL;
> + msgdma_ctrl ctrl;
> + uint64_t offset = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->dma_cfg;
> + if (cfg->index >= NUM_N3000_DMA)
> + return -EINVAL;
> + ctx = &priv->dma_ctx[cfg->index];
> +
> + ctx->pattern = (int)cfg->pattern;
> + ctx->verbose = (int)cfg->verbose;
> + ctx->dma_buf_size = cfg->size;
> +
> + ret = dma_afu_buf_alloc(ctx, cfg);
> + if (ret)
> + goto free;
> +
> + printf("Initialize test buffer\n");
> + dma_afu_buf_init(ctx, cfg->length);
> +
> + /* enable interrupt */
> + ctrl.csr = 0;
> + ctrl.global_intr_en_mask = 1;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> + printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
> + cfg->offset, cfg->length);
> + ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
> + cfg->length, HOST_TO_FPGA);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from host
> to FPGA");
> + goto end;
> + }
> + memset(ctx->data_buf, 0, cfg->length);
> +
> + printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA
> to host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
> + offset = cfg->offset + cfg->length;
> + else if (cfg->offset > cfg->length)
> + offset = 0;
> + else
> + goto end;
> +
> + printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
> + cfg->offset, offset, cfg->length);
> + ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
> + FPGA_TO_FPGA);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA
> to FPGA");
> + goto end;
> + }
> +
> + printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA
> to host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + printf("Sweep with aligned address and size\n");
> + ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
> + if (ret)
> + goto end;
> +
> + if (cfg->unaligned) {
> + printf("Sweep with unaligned address and size\n");
> + struct unaligned_set {
> + uint64_t addr_offset;
> + uint64_t size_dec;
> + } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
> + for (i = 0; i < ARRAY_SIZE(param); i++) {
> + ret = sweep_test(ctx, cfg->length, cfg->offset,
> + param[i].addr_offset, param[i].size_dec);
> + if (ret)
> + break;
> + }
> + }
> +
> +end:
> + /* disable interrupt */
> + ctrl.global_intr_en_mask = 0;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> +free:
> + dma_afu_buf_free(ctx);
> + return ret;
> +}
> +
> +static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_rawdev *dev)
> +{
> + struct rte_afu_device *afudev = NULL;
> +
> + if (!dev || !dev->rawdev || !dev->rawdev->device)
> + return NULL;
> +
> + afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
> + if (!afudev->rawdev || !afudev->rawdev->device)
> + return NULL;
> +
> + return RTE_DEV_TO_PCI(afudev->rawdev->device);
> +}
> +
> +#ifdef VFIO_PRESENT
> +static int dma_afu_set_irqs(struct afu_rawdev *dev, uint32_t vec_start,
> + uint32_t count, int *efds)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + struct vfio_irq_set *irq_set = NULL;
> + int vfio_dev_fd = 0;
> + size_t sz = 0;
> + int ret = 0;
> +
> + if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
> + return -EINVAL;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return -ENODEV;
> + vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
> +
> + sz = sizeof(*irq_set) + sizeof(*efds) * count;
> + irq_set = rte_zmalloc(NULL, sz, 0);
> + if (!irq_set)
> + return -ENOMEM;
> +
> + irq_set->argsz = (uint32_t)sz;
> + irq_set->count = count;
> + irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
> + VFIO_IRQ_SET_ACTION_TRIGGER;
> + irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
> + irq_set->start = vec_start;
> +
> + rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
> + ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
> + if (ret)
> + IFPGA_RAWDEV_PMD_ERR("Error enabling MSI-X
> interrupts\n");
> +
> + rte_free(irq_set);
> + return ret;
> +}
> +#endif
> +
> +static void *n3000_afu_get_port_addr(struct afu_rawdev *dev)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint32_t bar = 0;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return NULL;
> +
> + addr = (uint8_t *)pci_dev->mem_resource[0].addr;
> + val = rte_read64(addr + PORT_ATTR_REG(dev->port));
> + if (!PORT_IMPLEMENTED(val)) {
> + IFPGA_RAWDEV_PMD_INFO("FIU port %d is not implemented",
> dev->port);
> + return NULL;
> + }
> +
> + bar = PORT_BAR(val);
> + if (bar >= PCI_MAX_RESOURCE) {
> + IFPGA_RAWDEV_PMD_ERR("BAR index %u is out of limit", bar);
> + return NULL;
> + }
> +
> + addr = (uint8_t *)pci_dev->mem_resource[bar].addr +
> PORT_OFFSET(val);
> + return addr;
> +}
> +
> +static int n3000_afu_get_irq_capability(struct afu_rawdev *dev,
> + uint32_t *vec_start, uint32_t *vec_count)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint64_t header = 0;
> + uint64_t next_offset = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
> + (DFH_FEATURE_ID(header) ==
> PORT_FEATURE_UINT_ID)) {
> + val = rte_read64(addr + PORT_UINT_CAP_REG);
> + if (vec_start)
> + *vec_start = PORT_VEC_START(val);
> + if (vec_count)
> + *vec_count = PORT_VEC_COUNT(val);
> + return 0;
> + }
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return -ENOENT;
> +}
> +
> +static int nlb_afu_ctx_release(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int nlb_afu_ctx_init(struct afu_rawdev *dev, uint8_t *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> + ctx->addr = addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr)
> + return -ENOMEM;
> +
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dest;
> + }
> +
> + ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr +
> DSM_STATUS);
> + return 0;
> +
> +release_dest:
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +release_src:
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +release_dsm:
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + return ret;
> +}
> +
> +static int dma_afu_ctx_release(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[0];
> +
> + rte_free(ctx->desc_buf);
> + ctx->desc_buf = NULL;
> +
> + rte_free(ctx->magic_buf);
> + ctx->magic_buf = NULL;
> +
> + close(ctx->event_fd);
> + return 0;
> +}
> +
> +static int dma_afu_ctx_init(struct afu_rawdev *dev, int index, uint8_t *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000,
> 0x1000000};
> + static int efds[1] = {0};
> + uint32_t vec_start = 0;
> + int ret = 0;
> +
> + if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[index];
> + ctx->index = index;
> + ctx->addr = addr;
> + ctx->csr_addr = addr + DMA_CSR;
> + ctx->desc_addr = addr + DMA_DESC;
> + ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
> + ctx->ase_data_addr = addr + DMA_ASE_DATA;
> + ctx->mem_size = mem_sz[ctx->index];
> + ctx->cur_ase_page = INVALID_ASE_PAGE;
> + if (ctx->index == 0) {
> + ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
> + if (ret)
> + return ret;
> +
> + efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
> + if (efds[0] < 0) {
> + IFPGA_RAWDEV_PMD_ERR("eventfd create failed");
> + return -EBADF;
> + }
> +#ifdef VFIO_PRESENT
> + if (dma_afu_set_irqs(dev, vec_start, 1, efds))
> + IFPGA_RAWDEV_PMD_ERR("DMA interrupt setup
> failed");
> +#endif
> + }
> + ctx->event_fd = efds[0];
> +
> + ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
> + sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
> + if (!ctx->desc_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->magic_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
> + if (ctx->magic_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + return 0;
> +
> +release:
> + dma_afu_ctx_release(dev);
> + return ret;
> +}
> +
> +static int n3000_afu_ctx_init(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + uint8_t *addr = NULL;
> + uint64_t header = 0;
> + uint64_t uuid_hi = 0;
> + uint64_t uuid_lo = 0;
> + uint64_t next_offset = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + addr = (uint8_t *)dev->addr;
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
> + uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
> +
> + if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
> + (uuid_lo == N3000_NLB0_UUID_L) &&
> + (uuid_hi == N3000_NLB0_UUID_H)) {
> + IFPGA_RAWDEV_PMD_INFO("AFU NLB0 found @ %p",
> (void *)addr);
> + ret = nlb_afu_ctx_init(dev, addr);
> + if (ret)
> + return ret;
> + } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
> + (uuid_lo == N3000_DMA_UUID_L) &&
> + (uuid_hi == N3000_DMA_UUID_H) &&
> + (priv->num_dma < NUM_N3000_DMA)) {
> + IFPGA_RAWDEV_PMD_INFO("AFU DMA%d found @
> %p",
> + priv->num_dma, (void *)addr);
> + ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
> + if (ret)
> + return ret;
> + priv->num_dma++;
> + } else {
> + IFPGA_RAWDEV_PMD_DEBUG("DFH: type %"PRIu64
> + ", uuid %016"PRIx64"%016"PRIx64,
> + DFH_TYPE(header), uuid_hi, uuid_lo);
> + }
> +
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return 0;
> +}
> +
> +static int n3000_afu_init(struct afu_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return n3000_afu_ctx_init(dev);
> +}
> +
> +static int n3000_afu_config(struct afu_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_n3000_cfg *cfg = NULL;
> + int i = 0;
> + uint64_t top = 0;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_n3000_cfg *)config;
> + if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
> + if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
> + (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
> + return -EINVAL;
> + if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.multi_cl != 1) &&
> + (cfg->nlb_cfg.multi_cl != 2) &&
> + (cfg->nlb_cfg.multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
> + (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
> + (cfg->nlb_cfg.end > MAX_CACHE_LINES))
> + return -EINVAL;
> + rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
> + sizeof(struct rte_pmd_afu_nlb_cfg));
> + } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
> + if (cfg->dma_cfg.index >= NUM_N3000_DMA)
> + return -EINVAL;
> + i = cfg->dma_cfg.index;
> + if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
> + if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
> + return -EINVAL;
> + if (i == 3) { /* QDR connected to DMA3 */
> + if (cfg->dma_cfg.length & 0x3f) {
> + cfg->dma_cfg.length &= ~0x3f;
> + IFPGA_RAWDEV_PMD_INFO("Round size to %x
> for QDR",
> + cfg->dma_cfg.length);
> + }
> + }
> + rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
> + sizeof(struct rte_pmd_afu_dma_cfg));
> + } else {
> + IFPGA_RAWDEV_PMD_ERR("Invalid type of N3000 AFU");
> + return -EINVAL;
> + }
> +
> + priv->cfg_type = cfg->type;
> + return 0;
> +}
> +
> +static int n3000_afu_test(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + IFPGA_RAWDEV_PMD_INFO("Test NLB");
> + ret = nlb_afu_test(dev);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + IFPGA_RAWDEV_PMD_INFO("Test DMA%u", priv-
> >dma_cfg.index);
> + ret = dma_afu_test(dev);
> + } else {
> + IFPGA_RAWDEV_PMD_ERR("Please configure AFU before
> test");
> + ret = -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int n3000_afu_close(struct afu_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + nlb_afu_ctx_release(dev);
> + dma_afu_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int n3000_afu_dump(struct afu_rawdev *dev, FILE *f)
> +{
> + struct n3000_afu_priv *priv = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + struct dma_afu_ctx *ctx = &priv->dma_ctx[priv-
> >dma_cfg.index];
> + fprintf(f, "index:\t\t%d\n", ctx->index);
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
> + fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
> + fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
> + fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
> + fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
> + fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
> + fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
> + } else {
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int n3000_afu_reset(struct afu_rawdev *dev)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + val = rte_read64(addr + PORT_CTRL_REG);
> + val |= PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> + rte_delay_us(100);
> + val &= ~PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> +
> + return 0;
> +}
> +
> +static struct afu_ops n3000_afu_ops = {
> + .init = n3000_afu_init,
> + .config = n3000_afu_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = n3000_afu_test,
> + .close = n3000_afu_close,
> + .dump = n3000_afu_dump,
> + .reset = n3000_afu_reset
> +};
> +
> +static struct afu_rawdev_drv n3000_afu_drv = {
> + .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> + .ops = &n3000_afu_ops
> +};
> +
> +AFU_PMD_REGISTER(n3000_afu_drv);
> diff --git a/drivers/raw/ifpga/afu_pmd_n3000.h
> b/drivers/raw/ifpga/afu_pmd_n3000.h
> new file mode 100644
> index 0000000..67e83fe
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_n3000.h
> @@ -0,0 +1,339 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _AFU_PMD_N3000_H_
> +#define _AFU_PMD_N3000_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "afu_pmd_core.h"
> +#include "rte_pmd_afu.h"
> +
> +#define N3000_AFU_UUID_L 0xc000c9660d824272
> +#define N3000_AFU_UUID_H 0x9aeffe5f84570612
> +#define N3000_NLB0_UUID_L 0xf89e433683f9040b
> +#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
> +#define N3000_DMA_UUID_L 0xa9149a35bace01ea
> +#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
> +
> +#define NUM_N3000_DMA 4
> +#define MAX_MSIX_VEC 7
> +
> +/* N3000 DFL definition */
> +#define DFH_UUID_L_OFFSET 8
> +#define DFH_UUID_H_OFFSET 16
> +#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
> +#define DFH_TYPE_AFU 1
> +#define DFH_TYPE_BBB 2
> +#define DFH_TYPE_PRIVATE 3
> +#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
> +#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
> +#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
> +#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
> +#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
> +#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
> +#define PORT_OFFSET(attr) ((attr) & 0xffffff)
> +#define PORT_FEATURE_UINT_ID 0x12
> +#define PORT_UINT_CAP_REG 0x8
> +#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
> +#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
> +#define PORT_CTRL_REG 0x38
> +#define PORT_SOFT_RESET (0x1 << 0)
> +
> +/* NLB registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_STATUS 0x40
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct nlb_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct nlb_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t wrthru_en:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd1:1;
> + uint32_t delay_en:1;
> + uint32_t rdsel:2;
> + uint32_t rsvd2:1;
> + uint32_t chsel:3;
> + uint32_t rsvd3:1;
> + uint32_t wrpush_i:1;
> + uint32_t wr_chsel:3;
> + uint32_t rsvd4:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t wrfence_chsel:2;
> + };
> + };
> +};
> +
> +struct nlb_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct nlb_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct nlb_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +/* DMA registers definition */
> +#define DMA_CSR 0x40
> +#define DMA_DESC 0x60
> +#define DMA_ASE_CTRL 0x200
> +#define DMA_ASE_DATA 0x1000
> +
> +#define DMA_ASE_WINDOW 4096
> +#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
> +#define INVALID_ASE_PAGE 0xffffffffffffffffULL
> +
> +#define DMA_WF_MAGIC 0x5772745F53796E63ULL
> +#define DMA_WF_MAGIC_ROM 0x1000000000000
> +#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
> +#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
> +
> +#define NUM_DMA_BUF 8
> +#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
> +
> +#define DMA_MASK_32_BIT 0xFFFFFFFF
> +
> +#define DMA_CSR_BUSY 0x1
> +#define DMA_DESC_BUFFER_EMPTY 0x2
> +#define DMA_DESC_BUFFER_FULL 0x4
> +
> +#define DWORD_BYTES 4
> +#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
> +
> +#define QWORD_BYTES 8
> +#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
> +
> +#define DMA_ALIGN_BYTES 64
> +#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
> +
> +#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
> +
> +#define DMA_TIMEOUT_MSEC 5000
> +
> +#define MAGIC_BUF_SIZE 64
> +#define ERR_CHECK_LIMIT 64
> +
> +#ifndef MIN
> +#define MIN(a, b) ((a) < (b) ? (a) : (b))
> +#endif
> +
> +#ifndef ARRAY_SIZE
> +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
> +#endif
> +
> +typedef enum {
> + HOST_TO_FPGA = 0,
> + FPGA_TO_HOST,
> + FPGA_TO_FPGA,
> + FPGA_MAX_TRANSFER_TYPE,
> +} fpga_dma_type;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t tx_channel:8;
> + uint32_t generate_sop:1;
> + uint32_t generate_eop:1;
> + uint32_t park_reads:1;
> + uint32_t park_writes:1;
> + uint32_t end_on_eop:1;
> + uint32_t reserved_1:1;
> + uint32_t transfer_irq_en:1;
> + uint32_t early_term_irq_en:1;
> + uint32_t trans_error_irq_en:8;
> + uint32_t early_done_en:1;
> + uint32_t reserved_2:6;
> + uint32_t go:1;
> + };
> +} msgdma_desc_ctrl;
> +
> +typedef struct __rte_packed {
> + uint32_t rd_address;
> + uint32_t wr_address;
> + uint32_t len;
> + uint16_t seq_num;
> + uint8_t rd_burst_count;
> + uint8_t wr_burst_count;
> + uint16_t rd_stride;
> + uint16_t wr_stride;
> + uint32_t rd_address_ext;
> + uint32_t wr_address_ext;
> + msgdma_desc_ctrl control;
> +} msgdma_ext_desc;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t busy:1;
> + uint32_t desc_buf_empty:1;
> + uint32_t desc_buf_full:1;
> + uint32_t rsp_buf_empty:1;
> + uint32_t rsp_buf_full:1;
> + uint32_t stopped:1;
> + uint32_t resetting:1;
> + uint32_t stopped_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t irq:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_status;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t stop_dispatcher:1;
> + uint32_t reset_dispatcher:1;
> + uint32_t stop_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t global_intr_en_mask:1;
> + uint32_t stop_descriptors:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_ctrl;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_fill_level:16;
> + uint32_t wr_fill_level:16;
> + };
> +} msgdma_fill_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rsp_fill_level:16;
> + uint32_t reserved:16;
> + };
> +} msgdma_rsp_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_seq_num:16;
> + uint32_t wr_seq_num:16;
> + };
> +} msgdma_seq_num;
> +
> +typedef struct __rte_packed {
> + msgdma_status status;
> + msgdma_ctrl ctrl;
> + msgdma_fill_level fill_level;
> + msgdma_rsp_level rsp;
> + msgdma_seq_num seq_num;
> +} msgdma_csr;
> +
> +#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
> +#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
> +
> +struct nlb_afu_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct nlb_dsm_status *status_ptr;
> +};
> +
> +struct dma_afu_ctx {
> + int index;
> + uint8_t *addr;
> + uint8_t *csr_addr;
> + uint8_t *desc_addr;
> + uint8_t *ase_ctrl_addr;
> + uint8_t *ase_data_addr;
> + uint64_t mem_size;
> + uint64_t cur_ase_page;
> + int event_fd;
> + int verbose;
> + int pattern;
> + void *data_buf;
> + void *ref_buf;
> + msgdma_ext_desc *desc_buf;
> + uint64_t *magic_buf;
> + uint64_t magic_iova;
> + uint32_t dma_buf_size;
> + uint64_t *dma_buf[NUM_DMA_BUF];
> + uint64_t dma_iova[NUM_DMA_BUF];
> +};
> +
> +struct n3000_afu_priv {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + struct nlb_afu_ctx nlb_ctx;
> + struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
> + int num_dma;
> + int cfg_type;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _AFU_PMD_N3000_H_ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index d9a6f29..2294ab5 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -13,7 +13,8 @@ objs = [base_objs]
> deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> -sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
> +sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> + 'afu_pmd_n3000.c')
>
> includes += include_directories('base')
> includes += include_directories('../../net/ipn3ke')
> diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
> new file mode 100644
> index 0000000..f14a053
> --- /dev/null
> +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> @@ -0,0 +1,97 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __RTE_PMD_AFU_H__
> +#define __RTE_PMD_AFU_H__
> +
> +/**
> + * @file rte_pmd_afu.h
> + *
> + * AFU PMD specific definitions.
> + *
> + * @b EXPERIMENTAL: this API may change, or be removed, without prior
> notice
> + *
> + */
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <stdint.h>
> +
> +#define RTE_PMD_AFU_N3000_NLB 1
> +#define RTE_PMD_AFU_N3000_DMA 2
> +
> +#define NLB_MODE_LPBK 0
> +#define NLB_MODE_READ 1
> +#define NLB_MODE_WRITE 2
> +#define NLB_MODE_TRPUT 3
> +
> +#define NLB_VC_AUTO 0
> +#define NLB_VC_VL0 1
> +#define NLB_VC_VH0 2
> +#define NLB_VC_VH1 3
> +#define NLB_VC_RANDOM 4
> +
> +#define NLB_WRLINE_M 0
> +#define NLB_WRLINE_I 1
> +#define NLB_WRPUSH_I 2
> +
> +#define NLB_RDLINE_S 0
> +#define NLB_RDLINE_I 1
> +#define NLB_RDLINE_MIXED 2
> +
> +#define MIN_CACHE_LINES 1
> +#define MAX_CACHE_LINES 1024
> +
> +#define MIN_DMA_BUF_SIZE 64
> +#define MAX_DMA_BUF_SIZE (1023 * 1024)
> +
> +/**
> + * NLB AFU configuration data structure.
> + */
> +struct rte_pmd_afu_nlb_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t cache_policy;
> + uint32_t cache_hint;
> + uint32_t read_vc;
> + uint32_t write_vc;
> + uint32_t wrfence_vc;
> + uint32_t freq_mhz;
> +};
> +
> +/**
> + * DMA AFU configuration data structure.
> + */
> +struct rte_pmd_afu_dma_cfg {
> + uint32_t index; /* index of DMA controller */
> + uint32_t length; /* total length of data to DMA */
> + uint32_t offset; /* address offset of target memory */
> + uint32_t size; /* size of transfer buffer */
> + uint32_t pattern; /* data pattern to fill in test buffer */
> + uint32_t unaligned; /* use unaligned address or length in sweep test */
> + uint32_t verbose; /* enable verbose error information in test */
> +};
> +
> +/**
> + * N3000 AFU configuration data structure.
> + */
> +struct rte_pmd_afu_n3000_cfg {
> + int type; /* RTE_PMD_AFU_N3000_NLB or
> RTE_PMD_AFU_N3000_DMA */
> + union {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + };
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* __RTE_PMD_AFU_H__ */
> --
It looks good for me, you can add:
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
2022-06-09 7:37 ` [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
2022-06-10 6:11 ` Zhang, Tianfei
@ 2022-06-15 7:07 ` Xu, Rosen
2022-06-16 1:10 ` Huang, Wei
1 sibling, 1 reply; 57+ messages in thread
From: Xu, Rosen @ 2022-06-15 7:07 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
Hi Wei,
Some comments.
Thanks,
Rosen
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 09, 2022 15:37
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
>
> N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
> and DMA is used to test local memory.
> This driver initialize the modules and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: move source files to ifpga and rename, refine code
> ---
> v3: fix Ubuntu 20.04 ARM build
> ---
> drivers/raw/ifpga/afu_pmd_core.h | 19 +
> drivers/raw/ifpga/afu_pmd_n3000.c | 2019
> +++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_n3000.h | 339 +++++++
> drivers/raw/ifpga/meson.build | 3 +-
> drivers/raw/ifpga/rte_pmd_afu.h | 97 ++
> 5 files changed, 2476 insertions(+), 1 deletion(-)
> create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
> create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
> create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_core.h
> b/drivers/raw/ifpga/afu_pmd_core.h
> index 4fad2c7..a938172 100644
> --- a/drivers/raw/ifpga/afu_pmd_core.h
> +++ b/drivers/raw/ifpga/afu_pmd_core.h
> @@ -14,6 +14,7 @@
> #include <unistd.h>
>
> #include <rte_spinlock.h>
> +#include <rte_cycles.h>
> #include <rte_bus_ifpga.h>
> #include <rte_rawdev.h>
>
> @@ -60,6 +61,24 @@ struct afu_rawdev {
> return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
> }
>
> +#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
> +#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines
> */
> +#define MHZ(f) ((f) * 1000000)
> +
> +#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
> +({ \
> + uint64_t __wait = 0; \
> + uint64_t __invl = (invl); \
> + uint64_t __timeout = (timeout); \
> + for (; __wait <= __timeout; __wait += __invl) { \
> + (val) = *(addr); \
> + if (cond) \
> + break; \
> + rte_delay_ms(__invl); \
> + } \
> + (cond) ? 0 : 1; \
> +})
> +
> void afu_pmd_register(struct afu_rawdev_drv *driver);
> void afu_pmd_unregister(struct afu_rawdev_drv *driver);
>
> diff --git a/drivers/raw/ifpga/afu_pmd_n3000.c
> b/drivers/raw/ifpga/afu_pmd_n3000.c
> new file mode 100644
> index 0000000..14f7fe0
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_n3000.c
> @@ -0,0 +1,2019 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_pmd_core.h"
> +#include "afu_pmd_n3000.h"
> +
> +static int nlb_afu_config(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->nlb_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + if (cfg->cache_policy == NLB_WRPUSH_I)
> + v.wrpush_i = 1;
> + else
> + v.wrthru_en = cfg->cache_policy;
> +
> + if (cfg->cache_hint == NLB_RDLINE_MIXED)
> + v.rdsel = 3;
> + else
> + v.rdsel = cfg->cache_hint;
> +
> + v.mode = cfg->mode;
> + v.chsel = cfg->read_vc;
> + v.wr_chsel = cfg->write_vc;
> + v.wrfence_chsel = cfg->wrfence_vc;
> + v.wrthru_en = cfg->cache_policy;
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void nlb_afu_report(struct afu_rawdev *dev, uint32_t cl)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_dsm_status *stat = NULL;
> + uint64_t ticks = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + cfg = &priv->nlb_cfg;
> + stat = priv->nlb_ctx.status_ptr;
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0)
> + cfg->freq_mhz = 200;
> +
> + num = (double)stat->num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat->num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
> + "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
> + printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
> + cl, stat->num_reads, stat->num_writes, ticks,
> + rd_bw / 1e9, wr_bw / 1e9);
> +}
> +
> +static int nlb_afu_test(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> + struct nlb_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + ctx = &priv->nlb_ctx;
> + cfg = &priv->nlb_cfg;
> +
> + /* initialize registers */
> + IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx-
> >dsm_iova);
> + rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx-
> >src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr +
> CSR_SRC_ADDR);
> + IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx-
> >dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr +
> CSR_DST_ADDR);
> +
> + ret = nlb_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl, ctx->addr + CSR_NUM_LINES);
> +
> + rte_delay_us(10);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + nlb_afu_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + IFPGA_RAWDEV_PMD_ERR("Data mismatch
> @ %u", i);
> + break;
> + }
> + }
> + }
> +
> +end:
> + return ret;
> +}
> +
> +static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
> +{
> + int i = 0;
> +
> + if (!ctx)
> + return;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + rte_free(ctx->dma_buf[i]);
> + ctx->dma_buf[i] = NULL;
> + }
> +
> + rte_free(ctx->data_buf);
> + ctx->data_buf = NULL;
> +
> + rte_free(ctx->ref_buf);
> + ctx->ref_buf = NULL;
> +}
> +
> +static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
> + struct rte_pmd_afu_dma_cfg *cfg)
> +{
> + size_t page_sz = sysconf(_SC_PAGE_SIZE);
> + int i, ret = 0;
> +
> + if (!ctx || !cfg)
> + return -EINVAL;
> +
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
> + TEST_MEM_ALIGN);
> + if (!ctx->dma_buf[i]) {
> + ret = -ENOMEM;
> + goto free_dma_buf;
> + }
> + ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
> + if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto free_dma_buf;
> + }
> + }
> +
> + ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->data_buf) {
> + ret = -ENOMEM;
> + goto free_dma_buf;
> + }
> +
> + ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
> + if (!ctx->ref_buf) {
> + ret = -ENOMEM;
> + goto free_data_buf;
> + }
> +
> + return 0;
> +
> +free_data_buf:
> + rte_free(ctx->data_buf);
> + ctx->data_buf = NULL;
> +free_dma_buf:
> + for (i = 0; i < NUM_DMA_BUF; i++) {
> + rte_free(ctx->dma_buf[i]);
> + ctx->dma_buf[i] = NULL;
> + }
> + return ret;
> +}
> +
> +static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
> +{
> + int *ptr = NULL;
> + size_t i = 0;
> + size_t dword_size = 0;
> +
> + if (!ctx || !size)
> + return;
> +
> + ptr = (int *)ctx->ref_buf;
> +
> + if (ctx->pattern) {
> + memset(ptr, ctx->pattern, size);
> + } else {
> + srand(99);
> + dword_size = size >> 2;
> + for (i = 0; i < dword_size; i++)
> + *ptr++ = rand();
> + }
> + rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
> +}
> +
> +static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
> +{
> + uint8_t *src = NULL;
> + uint8_t *dst = NULL;
> + size_t i = 0;
> + int n = 0;
> +
> + if (!ctx || !size)
> + return -EINVAL;
> +
> + src = (uint8_t *)ctx->ref_buf;
> + dst = (uint8_t *)ctx->data_buf;
> +
> + if (memcmp(src, dst, size)) {
> + printf("Transfer is corrupted\n");
> + if (ctx->verbose) {
> + for (i = 0; i < size; i++) {
> + if (*src != *dst) {
> + if (++n >= ERR_CHECK_LIMIT)
> + break;
> + printf("Mismatch at 0x%zx, "
> + "Expected %02x
> Actual %02x\n",
> + i, *src, *dst);
> + }
> + src++;
> + dst++;
> + }
> + if (n < ERR_CHECK_LIMIT) {
> + printf("Found %d error bytes\n", n);
> + } else {
> + printf("......\n");
> + printf("Found more than %d error bytes\n",
> n);
> + }
> + }
> + return -1;
> + }
> +
> + printf("Transfer is verified\n");
> + return 0;
> +}
> +
> +static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + rte_write64(*host_addr, dev_addr);
> +}
> +
> +static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> bytes)
> +{
> + uint64_t qwords = bytes / sizeof(uint64_t);
> +
> + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> + !IS_ALIGNED_QWORD((uint64_t)bytes))
> + return;
> +
> + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> + *host_addr = rte_read64(dev_addr);
> +}
> +
> +static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
> +{
> + uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
> +
> + if (!ctx)
> + return;
> +
> + if (requested_page != ctx->cur_ase_page) {
> + rte_write64(requested_page, ctx->ase_ctrl_addr);
> + ctx->cur_ase_page = requested_page;
> + }
> +}
> +
> +static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%x)", host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
> +
> + /* write back to device */
> + rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
> +
> + return 0;
> +}
> +
> +static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(dst))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(dst)) {
> + /* Write out a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> +
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Write out blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= dst & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)src, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Write out remaining DWORD */
> + switch_ase_page(ctx, dst);
> + offset = dst & DMA_ASE_WINDOW_MASK;
> + rte_write32(*(uint32_t *)(uintptr_t)src,
> + ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> + uint64_t *src_ptr, uint64_t count)
> +{
> + uint64_t dst = *dst_ptr;
> + uint64_t src = *src_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + count);
> +
> + /* aligns address to 8 byte using dst masking method */
> + if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + src += unaligned_size;
> + dst += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_write(ctx, &dst, &src, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using dst masking method
> */
> + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
> + uint64_t host_addr, uint32_t count)
> +{
> + uint64_t dev_aligned_addr = 0;
> + uint64_t shift = 0;
> + uint64_t val = 0;
> + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64"
> (0x%x)", host_addr,
> + dev_addr, count);
> +
> + if (!ctx || (count >= QWORD_BYTES))
> + return -EINVAL;
> +
> + if (!count)
> + return 0;
> +
> + switch_ase_page(ctx, dev_addr);
> +
> + shift = dev_addr % QWORD_BYTES;
> + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> + rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
> +
> + return 0;
> +}
> +
> +static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t *count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t align_bytes = *count;
> + uint64_t offset = 0;
> + uint64_t left_in_page = DMA_ASE_WINDOW;
> + uint64_t size_to_copy = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64"
> (0x%"PRIx64")", dst, src,
> + align_bytes);
> +
> + if (!ctx || !IS_ALIGNED_DWORD(src))
> + return -EINVAL;
> +
> + if (align_bytes < DWORD_BYTES)
> + return 0;
> +
> + if (!IS_ALIGNED_QWORD(src)) {
> + /* Read a single DWORD to get QWORD aligned */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + if (!align_bytes)
> + return 0;
> +
> + /* Read blocks of 64-bit values */
> + while (align_bytes >= QWORD_BYTES) {
> + left_in_page -= src & DMA_ASE_WINDOW_MASK;
> + size_to_copy =
> + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> 1)));
> + if (size_to_copy < QWORD_BYTES)
> + break;
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
> + (uint64_t *)(uintptr_t)dst, size_to_copy);
> + src += size_to_copy;
> + dst += size_to_copy;
> + align_bytes -= size_to_copy;
> + }
> +
> + if (align_bytes >= DWORD_BYTES) {
> + /* Read remaining DWORD */
> + switch_ase_page(ctx, src);
> + offset = src & DMA_ASE_WINDOW_MASK;
> + *(uint32_t *)(uintptr_t)dst =
> + rte_read32(ctx->ase_data_addr + offset);
> + src += DWORD_BYTES;
> + dst += DWORD_BYTES;
> + align_bytes -= DWORD_BYTES;
> + }
> +
> + *src_ptr = src;
> + *dst_ptr = dst;
> + *count = align_bytes;
> +
> + return 0;
> +}
> +
> +static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> + uint64_t *dst_ptr, uint64_t count)
> +{
> + uint64_t src = *src_ptr;
> + uint64_t dst = *dst_ptr;
> + uint64_t count_left = count;
> + uint64_t unaligned_size = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> (0x%"PRIx64")", src, dst,
> + count);
> +
> + /* Aligns address to 8 byte using src masking method */
> + if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> + count_left -= unaligned_size;
> + dst += unaligned_size;
> + src += unaligned_size;
> + }
> +
> + /* Handles 8/4 byte MMIO transfer */
> + ret = ase_read(ctx, &src, &dst, &count_left);
> + if (ret)
> + return ret;
> +
> + /* Left over unaligned bytes transferred using src masking method */
> + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> + if (unaligned_size > count_left)
> + unaligned_size = count_left;
> +
> + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> + if (ret)
> + return ret;
> +
> + count_left -= unaligned_size;
> + *dst_ptr = dst + unaligned_size;
> + *src_ptr = src + unaligned_size;
> +
> + return 0;
> +}
> +
> +static void clear_interrupt(struct dma_afu_ctx *ctx)
> +{
> + /* clear interrupt by writing 1 to IRQ bit in status register */
> + msgdma_status status;
> +
> + if (!ctx)
> + return;
> +
> + status.csr = 0;
> + status.irq = 1;
> + rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
> +}
> +
> +static int poll_interrupt(struct dma_afu_ctx *ctx)
> +{
> + struct pollfd pfd = {0};
> + uint64_t count = 0;
> + ssize_t bytes_read = 0;
> + int poll_ret = 0;
> + int ret = 0;
> +
> + if (!ctx || (ctx->event_fd < 0))
> + return -EINVAL;
> +
> + pfd.fd = ctx->event_fd;
> + pfd.events = POLLIN;
> + poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
> + if (poll_ret < 0) {
> + IFPGA_RAWDEV_PMD_ERR("Error %s", strerror(errno));
> + ret = -EFAULT;
> + goto out;
> + } else if (poll_ret == 0) {
> + IFPGA_RAWDEV_PMD_ERR("Timeout");
> + ret = -ETIMEDOUT;
> + } else {
> + bytes_read = read(pfd.fd, &count, sizeof(count));
> + if (bytes_read > 0) {
> + if (ctx->verbose)
> + IFPGA_RAWDEV_PMD_DEBUG("Successful,
> ret %d, cnt %"PRIu64,
> + poll_ret, count);
> + ret = 0;
> + } else {
> + IFPGA_RAWDEV_PMD_ERR("Failed %s", bytes_read >
> 0 ?
> + strerror(errno) : "zero bytes read");
> + ret = -EIO;
> + }
> + }
> +out:
> + clear_interrupt(ctx);
> + return ret;
> +}
> +
> +static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc
> *desc)
> +{
> + msgdma_status status;
> + uint64_t fpga_queue_full = 0;
> +
> + if (!ctx)
> + return;
> +
> + if (ctx->verbose) {
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_address =
> 0x%x%08x",
> + desc->rd_address_ext, desc->rd_address);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_address =
> 0x%x%08x",
> + desc->wr_address_ext, desc->wr_address);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.len = %u", desc-
> >len);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_burst_count
> = %u",
> + desc->wr_burst_count);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_burst_count
> = %u",
> + desc->rd_burst_count);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_stride %u",
> desc->wr_stride);
> + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_stride %u",
> desc->rd_stride);
> + }
> +
> + do {
> + status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
> + if (fpga_queue_full++ > 100000000) {
> + IFPGA_RAWDEV_PMD_DEBUG("DMA queue full
> retry");
> + fpga_queue_full = 0;
> + }
> + } while (status.desc_buf_full);
> +
> + blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
> + sizeof(*desc));
> +}
> +
> +static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + int count, int is_last_desc, fpga_dma_type type, int intr_en)
> +{
> + msgdma_ext_desc *desc = NULL;
> + int alignment_offset = 0;
> + int segment_size = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + /* src, dst and count must be 64-byte aligned */
> + if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
> + !IS_DMA_ALIGNED(count))
> + return -EINVAL;
> + memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
> +
> + /* these fields are fixed for all DMA transfers */
> + desc = ctx->desc_buf;
> + desc->seq_num = 0;
> + desc->wr_stride = 1;
> + desc->rd_stride = 1;
> + desc->control.go = 1;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + else
> + desc->control.transfer_irq_en = 0;
> +
> + if (!is_last_desc)
> + desc->control.early_done_en = 1;
> + else
> + desc->control.early_done_en = 0;
> +
> + if (type == FPGA_TO_FPGA) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
> + send_descriptor(ctx, desc);
> + } else {
> + /* check CCIP (host) address is aligned to 4CL (256B) */
> + alignment_offset = (type == HOST_TO_FPGA)
> + ? (src % CCIP_ALIGN_BYTES) : (dst %
> CCIP_ALIGN_BYTES);
> + /* performing a short transfer to get aligned */
> + if (alignment_offset != 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* count isn't large enough to hit next 4CL boundary
> */
> + if ((CCIP_ALIGN_BYTES - alignment_offset) >= count)
> {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = CCIP_ALIGN_BYTES
> + - alignment_offset;
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + /* post short transfer to align to a 4CL (256 byte) */
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* at this point we are 4CL (256 byte) aligned */
> + if (count >= CCIP_ALIGN_BYTES) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->wr_burst_count = 4;
> + desc->rd_burst_count = 4;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + /* buffer ends on 4CL boundary */
> + if ((count % CCIP_ALIGN_BYTES) == 0) {
> + segment_size = count;
> + count = 0;
> + } else {
> + segment_size = count
> + - (count % CCIP_ALIGN_BYTES);
> + src += segment_size;
> + dst += segment_size;
> + count -= segment_size;
> + desc->control.transfer_irq_en = 0;
> + }
> + desc->len = segment_size;
> + send_descriptor(ctx, desc);
> + }
> + /* post short transfer to handle the remainder */
> + if (count > 0) {
> + desc->rd_address = src & DMA_MASK_32_BIT;
> + desc->wr_address = dst & DMA_MASK_32_BIT;
> + desc->len = count;
> + desc->wr_burst_count = 1;
> + desc->rd_burst_count = 1;
> + desc->rd_address_ext = (src >> 32) &
> DMA_MASK_32_BIT;
> + desc->wr_address_ext = (dst >> 32) &
> DMA_MASK_32_BIT;
> + if (intr_en)
> + desc->control.transfer_irq_en = 1;
> + send_descriptor(ctx, desc);
> + }
> + }
> +
> + return 0;
> +}
> +
> +static int issue_magic(struct dma_afu_ctx *ctx)
> +{
> + *(ctx->magic_buf) = 0ULL;
> + return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
> + DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
> +}
> +
> +static void wait_magic(struct dma_afu_ctx *ctx)
> +{
> + int magic_timeout = 0;
> +
> + if (!ctx)
> + return;
> +
> + poll_interrupt(ctx);
> + while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
> + if (magic_timeout++ > 1000) {
> + IFPGA_RAWDEV_PMD_ERR("DMA magic operation
> timeout");
> + magic_timeout = 0;
> + break;
> + }
> + }
> + *(ctx->magic_buf) = 0ULL;
> +}
> +
> +static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, int *intr_issued)
> +{
> + int intr_en = 0;
> + int ret = 0;
> +
> + if (!ctx || !intr_issued)
> + return -EINVAL;
> +
> + src += chunk * ctx->dma_buf_size;
> + dst += chunk * ctx->dma_buf_size;
> +
> + if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) ||
> is_last_chunk) {
> + if (*intr_issued) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> + intr_en = 1;
> + }
> +
> + chunk %= NUM_DMA_BUF;
> + rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
> + ctx->dma_buf_size);
> + ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
> + ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
> + if (intr_en)
> + *intr_issued = 1;
> +
> + return ret;
> +}
> +
> +static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t dma_tx_bytes = 0;
> + uint64_t offset = 0;
> + int issued_intr = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64"
> (%zu)", src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(dst)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_host_to_fpga(ctx, &dst, &src, count_left);
> +
> + aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - dst;
> + ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --->
> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_tx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1), &issued_intr);
> + if (ret)
> + return ret;
> + }
> +
> + if (issued_intr) {
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + if (count_left) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_tx_bytes = i * DMA_ALIGN_BYTES;
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to DMA",
> + dma_tx_bytes);
> + rte_memcpy(ctx->dma_buf[0],
> + (void *)(uintptr_t)(src + offset),
> + dma_tx_bytes);
> + ret = do_dma(ctx, dst + offset,
> + DMA_HOST_ADDR(ctx-
> >dma_iova[0]),
> + dma_tx_bytes, 1, HOST_TO_FPGA, 1);
> + if (ret)
> + return ret;
> + ret = poll_interrupt(ctx);
> + if (ret)
> + return ret;
> + }
> +
> + count_left -= dma_tx_bytes;
> + if (count_left) {
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to ASE",
> + count_left);
> + dst += offset + dma_tx_bytes;
> + src += offset + dma_tx_bytes;
> + ret = ase_host_to_fpga(ctx, &dst, &src,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> + uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
> +{
> + uint64_t i = chunk % NUM_DMA_BUF;
> + uint64_t n = *rx_count;
> + uint64_t num_pending = 0;
> + int ret = 0;
> +
> + if (!ctx || !wf_issued)
> + return -EINVAL;
> +
> + ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
> + src + chunk * ctx->dma_buf_size,
> + ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> +
> + num_pending = chunk - n + 1;
> + if (num_pending == HALF_DMA_BUF) {
> + ret = issue_magic(ctx);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
> + if (*wf_issued) {
> + wait_magic(ctx);
> + for (i = 0; i < HALF_DMA_BUF; i++) {
> + rte_memcpy((void *)(uintptr_t)(dst +
> + n * ctx->dma_buf_size),
> + ctx->dma_buf[n % NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + n++;
> + }
> + *wf_issued = 0;
> + *rx_count = n;
> + }
> + ret = issue_magic(ctx);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
> + return ret;
> + }
> + *wf_issued = 1;
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t aligned_addr = 0;
> + uint64_t align_bytes = 0;
> + uint64_t dma_chunks = 0;
> + uint64_t pending_buf = 0;
> + uint64_t dma_rx_bytes = 0;
> + uint64_t offset = 0;
> + int wf_issued = 0;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64"
> (%zu)", src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (!IS_DMA_ALIGNED(src)) {
> + if (count_left < DMA_ALIGN_BYTES)
> + return ase_fpga_to_host(ctx, &src, &dst, count_left);
> +
> + aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
> + * DMA_ALIGN_BYTES;
> + align_bytes = aligned_addr - src;
> + ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
> + if (ret)
> + return ret;
> + count_left = count_left - align_bytes;
> + }
> +
> + if (count_left) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --->
> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = dma_rx_buf(ctx, dst, src, i,
> + i == (dma_chunks - 1),
> + &pending_buf, &wf_issued);
> + if (ret)
> + return ret;
> + }
> +
> + if (wf_issued)
> + wait_magic(ctx);
> +
> + /* clear out final dma memcpy operations */
> + while (pending_buf < dma_chunks) {
> + /* constant size transfer; no length check required */
> + rte_memcpy((void *)(uintptr_t)(dst +
> + pending_buf * ctx->dma_buf_size),
> + ctx->dma_buf[pending_buf %
> NUM_DMA_BUF],
> + ctx->dma_buf_size);
> + pending_buf++;
> + }
> +
> + if (count_left > 0) {
> + i = count_left / DMA_ALIGN_BYTES;
> + if (i > 0) {
> + dma_rx_bytes = i * DMA_ALIGN_BYTES;
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to DMA",
> + dma_rx_bytes);
> + ret = do_dma(ctx,
> + DMA_HOST_ADDR(ctx-
> >dma_iova[0]),
> + src + offset,
> + dma_rx_bytes, 1, FPGA_TO_HOST, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + rte_memcpy((void *)(uintptr_t)(dst + offset),
> + ctx->dma_buf[0], dma_rx_bytes);
> + }
> +
> + count_left -= dma_rx_bytes;
> + if (count_left) {
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to ASE",
> + count_left);
> + dst += offset + dma_rx_bytes;
> + src += offset + dma_rx_bytes;
> + ret = ase_fpga_to_host(ctx, &src, &dst,
> + count_left);
> + }
> + }
> + }
> +
> + return ret;
> +}
> +
> +static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> uint64_t src,
> + size_t count)
> +{
> + uint64_t i = 0;
> + uint64_t count_left = count;
> + uint64_t dma_chunks = 0;
> + uint64_t offset = 0;
> + uint32_t tx_chunks = 0;
> + uint64_t *tmp_buf = NULL;
> + int ret = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64"
> (%zu)", src, dst,
> + count);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
> + && IS_DMA_ALIGNED(count_left)) {
> + dma_chunks = count_left / ctx->dma_buf_size;
> + offset = dma_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --->
> 0x%"PRIx64
> + " (%"PRIu64"...0x%"PRIx64")",
> + src, dst, dma_chunks, count_left);
> + for (i = 0; i < dma_chunks; i++) {
> + ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + if ((((i + 1) % NUM_DMA_BUF) == 0) ||
> + (i == (dma_chunks - 1))) {
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + }
> +
> + if (count_left > 0) {
> + IFPGA_RAWDEV_PMD_DEBUG("left over
> 0x%"PRIx64" to DMA", count_left);
> + ret = do_dma(ctx, dst + offset, src + offset,
> + count_left, 1, FPGA_TO_FPGA, 0);
> + if (ret)
> + return ret;
> + ret = issue_magic(ctx);
> + if (ret)
> + return ret;
> + wait_magic(ctx);
> + }
> + } else {
> + if ((src < dst) && (src + count_left > dst)) {
> + IFPGA_RAWDEV_PMD_ERR("Overlapping:
> 0x%"PRIx64
> + " -> 0x%"PRIx64" (0x%"PRIx64")",
> + src, dst, count_left);
> + return -EINVAL;
> + }
> + tx_chunks = count_left / ctx->dma_buf_size;
> + offset = tx_chunks * ctx->dma_buf_size;
> + count_left -= offset;
> + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" -->
> 0x%"PRIx64
> + " (%u...0x%"PRIx64")",
> + src, dst, tx_chunks, count_left);
> + tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
> + DMA_ALIGN_BYTES);
> + for (i = 0; i < tx_chunks; i++) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + i * ctx->dma_buf_size,
> + ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx,
> + dst + i * ctx->dma_buf_size,
> + (uint64_t)tmp_buf, ctx->dma_buf_size);
> + if (ret)
> + goto free_buf;
> + }
> +
> + if (count_left > 0) {
> + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> + src + offset, count_left);
> + if (ret)
> + goto free_buf;
> + ret = dma_host_to_fpga(ctx, dst + offset,
> + (uint64_t)tmp_buf, count_left);
> + if (ret)
> + goto free_buf;
> + }
> +free_buf:
> + rte_free(tmp_buf);
> + }
> +
> + return ret;
> +}
> +
> +static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
> + uint64_t src, size_t count, fpga_dma_type type)
> +{
> + int ret = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + if (type == HOST_TO_FPGA)
> + ret = dma_host_to_fpga(ctx, dst, src, count);
> + else if (type == FPGA_TO_HOST)
> + ret = dma_fpga_to_host(ctx, dst, src, count);
> + else if (type == FPGA_TO_FPGA)
> + ret = dma_fpga_to_fpga(ctx, dst, src, count);
> + else
> + return -EINVAL;
> +
> + return ret;
> +}
> +
> +static double getTime(struct timespec start, struct timespec end)
> +{
> + uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
> + + end.tv_nsec - start.tv_nsec;
> + return (double)diff / (double)1000000000L;
> +}
> +
Pls rename this function as DPDK program guide.
> +#define SWEEP_ITERS 1
> +static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
> + uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
> +{
> + struct timespec start, end;
> + uint64_t test_size = 0;
> + uint64_t *dma_buf_ptr = NULL;
> + double throughput, total_time = 0.0;
> + int i = 0;
> + int ret = 0;
> +
> + if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
> + IFPGA_RAWDEV_PMD_ERR("Buffer for DMA test is not
> allocated");
> + return -EINVAL;
> + }
> +
> + if (length < (buf_offset + size_decrement)) {
> + IFPGA_RAWDEV_PMD_ERR("Test length does not match
> unaligned parameter");
> + return -EINVAL;
> + }
> + test_size = length - (buf_offset + size_decrement);
> + if ((ddr_offset + test_size) > ctx->mem_size) {
> + IFPGA_RAWDEV_PMD_ERR("Test is out of DDR memory
> space");
> + return -EINVAL;
> + }
> +
> + dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
> + printf("Sweep Host %p to FPGA 0x%"PRIx64
> + " with 0x%"PRIx64" bytes ...\n",
> + (void *)dma_buf_ptr, ddr_offset, test_size);
> +
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, ddr_offset,
> (uint64_t)dma_buf_ptr,
> + test_size, HOST_TO_FPGA);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64"
> bytes ...\n",
> + ddr_offset, (void *)dma_buf_ptr, test_size);
> +
> + total_time = 0.0;
> + memset((char *)dma_buf_ptr, 0, test_size);
> + for (i = 0; i < SWEEP_ITERS; i++) {
> + clock_gettime(CLOCK_MONOTONIC, &start);
> + ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr,
> ddr_offset,
> + test_size, FPGA_TO_HOST);
> + clock_gettime(CLOCK_MONOTONIC, &end);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed");
> + return ret;
> + }
> + total_time += getTime(start, end);
> + }
> + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> + printf("Measured bandwidth = %lf MB/s\n", throughput);
> +
> + printf("Verifying buffer ...\n");
> + return dma_afu_buf_verify(ctx, test_size);
> +}
> +
> +static int dma_afu_test(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + struct rte_pmd_afu_dma_cfg *cfg = NULL;
> + msgdma_ctrl ctrl;
> + uint64_t offset = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + cfg = &priv->dma_cfg;
> + if (cfg->index >= NUM_N3000_DMA)
> + return -EINVAL;
> + ctx = &priv->dma_ctx[cfg->index];
> +
> + ctx->pattern = (int)cfg->pattern;
> + ctx->verbose = (int)cfg->verbose;
> + ctx->dma_buf_size = cfg->size;
> +
> + ret = dma_afu_buf_alloc(ctx, cfg);
> + if (ret)
> + goto free;
> +
> + printf("Initialize test buffer\n");
> + dma_afu_buf_init(ctx, cfg->length);
> +
> + /* enable interrupt */
> + ctrl.csr = 0;
> + ctrl.global_intr_en_mask = 1;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> + printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
> + cfg->offset, cfg->length);
> + ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
> + cfg->length, HOST_TO_FPGA);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> host to FPGA");
> + goto end;
> + }
> + memset(ctx->data_buf, 0, cfg->length);
> +
> + printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> FPGA to host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
> + offset = cfg->offset + cfg->length;
> + else if (cfg->offset > cfg->length)
> + offset = 0;
> + else
> + goto end;
> +
> + printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
> + cfg->offset, offset, cfg->length);
> + ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
> + FPGA_TO_FPGA);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> FPGA to FPGA");
> + goto end;
> + }
> +
> + printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
> + ctx->data_buf, cfg->length);
> + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
> + cfg->length, FPGA_TO_HOST);
> + if (ret) {
> + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> FPGA to host");
> + goto end;
> + }
> + ret = dma_afu_buf_verify(ctx, cfg->length);
> + if (ret)
> + goto end;
> +
> + printf("Sweep with aligned address and size\n");
> + ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
> + if (ret)
> + goto end;
> +
> + if (cfg->unaligned) {
> + printf("Sweep with unaligned address and size\n");
> + struct unaligned_set {
> + uint64_t addr_offset;
> + uint64_t size_dec;
> + } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
> + for (i = 0; i < ARRAY_SIZE(param); i++) {
> + ret = sweep_test(ctx, cfg->length, cfg->offset,
> + param[i].addr_offset, param[i].size_dec);
> + if (ret)
> + break;
> + }
> + }
> +
> +end:
> + /* disable interrupt */
> + ctrl.global_intr_en_mask = 0;
> + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> +
> +free:
> + dma_afu_buf_free(ctx);
> + return ret;
> +}
> +
> +static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_rawdev
> *dev)
> +{
> + struct rte_afu_device *afudev = NULL;
> +
> + if (!dev || !dev->rawdev || !dev->rawdev->device)
> + return NULL;
> +
> + afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
> + if (!afudev->rawdev || !afudev->rawdev->device)
> + return NULL;
> +
> + return RTE_DEV_TO_PCI(afudev->rawdev->device);
> +}
> +
> +#ifdef VFIO_PRESENT
> +static int dma_afu_set_irqs(struct afu_rawdev *dev, uint32_t vec_start,
> + uint32_t count, int *efds)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + struct vfio_irq_set *irq_set = NULL;
> + int vfio_dev_fd = 0;
> + size_t sz = 0;
> + int ret = 0;
> +
> + if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
> + return -EINVAL;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return -ENODEV;
> + vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
> +
> + sz = sizeof(*irq_set) + sizeof(*efds) * count;
> + irq_set = rte_zmalloc(NULL, sz, 0);
> + if (!irq_set)
> + return -ENOMEM;
> +
> + irq_set->argsz = (uint32_t)sz;
> + irq_set->count = count;
> + irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
> + VFIO_IRQ_SET_ACTION_TRIGGER;
> + irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
> + irq_set->start = vec_start;
> +
> + rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
> + ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
> + if (ret)
> + IFPGA_RAWDEV_PMD_ERR("Error enabling MSI-X
> interrupts\n");
> +
> + rte_free(irq_set);
> + return ret;
> +}
> +#endif
> +
> +static void *n3000_afu_get_port_addr(struct afu_rawdev *dev)
> +{
> + struct rte_pci_device *pci_dev = NULL;
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint32_t bar = 0;
> +
> + pci_dev = n3000_afu_get_pci_dev(dev);
> + if (!pci_dev)
> + return NULL;
> +
> + addr = (uint8_t *)pci_dev->mem_resource[0].addr;
> + val = rte_read64(addr + PORT_ATTR_REG(dev->port));
> + if (!PORT_IMPLEMENTED(val)) {
> + IFPGA_RAWDEV_PMD_INFO("FIU port %d is not
> implemented", dev->port);
> + return NULL;
> + }
> +
> + bar = PORT_BAR(val);
> + if (bar >= PCI_MAX_RESOURCE) {
> + IFPGA_RAWDEV_PMD_ERR("BAR index %u is out of limit",
> bar);
> + return NULL;
> + }
> +
> + addr = (uint8_t *)pci_dev->mem_resource[bar].addr +
> PORT_OFFSET(val);
> + return addr;
> +}
> +
> +static int n3000_afu_get_irq_capability(struct afu_rawdev *dev,
> + uint32_t *vec_start, uint32_t *vec_count)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> + uint64_t header = 0;
> + uint64_t next_offset = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
> + (DFH_FEATURE_ID(header) ==
> PORT_FEATURE_UINT_ID)) {
> + val = rte_read64(addr + PORT_UINT_CAP_REG);
> + if (vec_start)
> + *vec_start = PORT_VEC_START(val);
> + if (vec_count)
> + *vec_count = PORT_VEC_COUNT(val);
> + return 0;
> + }
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return -ENOENT;
> +}
> +
> +static int nlb_afu_ctx_release(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int nlb_afu_ctx_init(struct afu_rawdev *dev, uint8_t *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct nlb_afu_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->nlb_ctx;
> + ctx->addr = addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr)
> + return -ENOMEM;
> +
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dest;
> + }
> +
> + ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr +
> DSM_STATUS);
> + return 0;
> +
> +release_dest:
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +release_src:
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +release_dsm:
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + return ret;
> +}
> +
> +static int dma_afu_ctx_release(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[0];
> +
> + rte_free(ctx->desc_buf);
> + ctx->desc_buf = NULL;
> +
> + rte_free(ctx->magic_buf);
> + ctx->magic_buf = NULL;
> +
> + close(ctx->event_fd);
> + return 0;
> +}
> +
> +static int dma_afu_ctx_init(struct afu_rawdev *dev, int index, uint8_t
> *addr)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct dma_afu_ctx *ctx = NULL;
> + uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000,
> 0x1000000};
> + static int efds[1] = {0};
> + uint32_t vec_start = 0;
> + int ret = 0;
> +
> + if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->dma_ctx[index];
> + ctx->index = index;
> + ctx->addr = addr;
> + ctx->csr_addr = addr + DMA_CSR;
> + ctx->desc_addr = addr + DMA_DESC;
> + ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
> + ctx->ase_data_addr = addr + DMA_ASE_DATA;
> + ctx->mem_size = mem_sz[ctx->index];
> + ctx->cur_ase_page = INVALID_ASE_PAGE;
> + if (ctx->index == 0) {
> + ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
> + if (ret)
> + return ret;
> +
> + efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
> + if (efds[0] < 0) {
> + IFPGA_RAWDEV_PMD_ERR("eventfd create failed");
> + return -EBADF;
> + }
> +#ifdef VFIO_PRESENT
> + if (dma_afu_set_irqs(dev, vec_start, 1, efds))
> + IFPGA_RAWDEV_PMD_ERR("DMA interrupt setup
> failed");
> +#endif
> + }
> + ctx->event_fd = efds[0];
> +
> + ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
> + sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
> + if (!ctx->desc_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->magic_buf) {
> + ret = -ENOMEM;
> + goto release;
> + }
> + ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
> + if (ctx->magic_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release;
> + }
> +
> + return 0;
> +
> +release:
> + dma_afu_ctx_release(dev);
> + return ret;
> +}
> +
> +static int n3000_afu_ctx_init(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + uint8_t *addr = NULL;
> + uint64_t header = 0;
> + uint64_t uuid_hi = 0;
> + uint64_t uuid_lo = 0;
> + uint64_t next_offset = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + addr = (uint8_t *)dev->addr;
> + do {
> + addr += next_offset;
> + header = rte_read64(addr);
> + uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
> + uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
> +
> + if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
> + (uuid_lo == N3000_NLB0_UUID_L) &&
> + (uuid_hi == N3000_NLB0_UUID_H)) {
> + IFPGA_RAWDEV_PMD_INFO("AFU NLB0 found
> @ %p", (void *)addr);
> + ret = nlb_afu_ctx_init(dev, addr);
> + if (ret)
> + return ret;
> + } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
> + (uuid_lo == N3000_DMA_UUID_L) &&
> + (uuid_hi == N3000_DMA_UUID_H) &&
> + (priv->num_dma < NUM_N3000_DMA)) {
> + IFPGA_RAWDEV_PMD_INFO("AFU DMA%d found
> @ %p",
> + priv->num_dma, (void *)addr);
> + ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
> + if (ret)
> + return ret;
> + priv->num_dma++;
> + } else {
> + IFPGA_RAWDEV_PMD_DEBUG("DFH: type %"PRIu64
> + ", uuid %016"PRIx64"%016"PRIx64,
> + DFH_TYPE(header), uuid_hi, uuid_lo);
> + }
> +
> + next_offset = DFH_NEXT_OFFSET(header);
> + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> + break;
> + } while (!DFH_EOL(header));
> +
> + return 0;
> +}
> +
> +static int n3000_afu_init(struct afu_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv),
> 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return n3000_afu_ctx_init(dev);
> +}
> +
> +static int n3000_afu_config(struct afu_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + struct rte_pmd_afu_n3000_cfg *cfg = NULL;
> + int i = 0;
> + uint64_t top = 0;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_n3000_cfg *)config;
> + if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
> + if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
> + (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
> + return -EINVAL;
> + if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
> + return -EINVAL;
> + if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
> + return -EINVAL;
> + if ((cfg->nlb_cfg.multi_cl != 1) &&
> + (cfg->nlb_cfg.multi_cl != 2) &&
> + (cfg->nlb_cfg.multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
> + (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
> + (cfg->nlb_cfg.end > MAX_CACHE_LINES))
> + return -EINVAL;
> + rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
> + sizeof(struct rte_pmd_afu_nlb_cfg));
> + } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
> + if (cfg->dma_cfg.index >= NUM_N3000_DMA)
> + return -EINVAL;
> + i = cfg->dma_cfg.index;
> + if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
> + return -EINVAL;
> + top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
> + if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
> + return -EINVAL;
> + if (i == 3) { /* QDR connected to DMA3 */
> + if (cfg->dma_cfg.length & 0x3f) {
> + cfg->dma_cfg.length &= ~0x3f;
> + IFPGA_RAWDEV_PMD_INFO("Round size
> to %x for QDR",
> + cfg->dma_cfg.length);
> + }
> + }
> + rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
> + sizeof(struct rte_pmd_afu_dma_cfg));
> + } else {
> + IFPGA_RAWDEV_PMD_ERR("Invalid type of N3000 AFU");
> + return -EINVAL;
> + }
> +
> + priv->cfg_type = cfg->type;
> + return 0;
> +}
> +
> +static int n3000_afu_test(struct afu_rawdev *dev)
> +{
> + struct n3000_afu_priv *priv = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv)
> + return -ENOENT;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + IFPGA_RAWDEV_PMD_INFO("Test NLB");
> + ret = nlb_afu_test(dev);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + IFPGA_RAWDEV_PMD_INFO("Test DMA%u", priv-
> >dma_cfg.index);
> + ret = dma_afu_test(dev);
> + } else {
> + IFPGA_RAWDEV_PMD_ERR("Please configure AFU before
> test");
> + ret = -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static int n3000_afu_close(struct afu_rawdev *dev)
> +{
> + if (!dev)
> + return -EINVAL;
> +
> + nlb_afu_ctx_release(dev);
> + dma_afu_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int n3000_afu_dump(struct afu_rawdev *dev, FILE *f)
> +{
> + struct n3000_afu_priv *priv = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct n3000_afu_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> + struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> + struct dma_afu_ctx *ctx = &priv->dma_ctx[priv-
> >dma_cfg.index];
> + fprintf(f, "index:\t\t%d\n", ctx->index);
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
> + fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
> + fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
> + fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx-
> >ase_data_addr);
> + fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
> + fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
> + fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
> + } else {
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int n3000_afu_reset(struct afu_rawdev *dev)
> +{
> + uint8_t *addr = NULL;
> + uint64_t val = 0;
> +
> + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> + if (!addr)
> + return -ENOENT;
> +
> + val = rte_read64(addr + PORT_CTRL_REG);
> + val |= PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> + rte_delay_us(100);
> + val &= ~PORT_SOFT_RESET;
> + rte_write64(val, addr + PORT_CTRL_REG);
> +
> + return 0;
> +}
> +
> +static struct afu_ops n3000_afu_ops = {
> + .init = n3000_afu_init,
> + .config = n3000_afu_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = n3000_afu_test,
> + .close = n3000_afu_close,
> + .dump = n3000_afu_dump,
> + .reset = n3000_afu_reset
> +};
> +
> +static struct afu_rawdev_drv n3000_afu_drv = {
> + .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> + .ops = &n3000_afu_ops
> +};
> +
> +AFU_PMD_REGISTER(n3000_afu_drv);
> diff --git a/drivers/raw/ifpga/afu_pmd_n3000.h
> b/drivers/raw/ifpga/afu_pmd_n3000.h
> new file mode 100644
> index 0000000..67e83fe
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_n3000.h
> @@ -0,0 +1,339 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _AFU_PMD_N3000_H_
> +#define _AFU_PMD_N3000_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "afu_pmd_core.h"
> +#include "rte_pmd_afu.h"
> +
> +#define N3000_AFU_UUID_L 0xc000c9660d824272
> +#define N3000_AFU_UUID_H 0x9aeffe5f84570612
> +#define N3000_NLB0_UUID_L 0xf89e433683f9040b
> +#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
> +#define N3000_DMA_UUID_L 0xa9149a35bace01ea
> +#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
> +
> +#define NUM_N3000_DMA 4
> +#define MAX_MSIX_VEC 7
> +
> +/* N3000 DFL definition */
> +#define DFH_UUID_L_OFFSET 8
> +#define DFH_UUID_H_OFFSET 16
> +#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
> +#define DFH_TYPE_AFU 1
> +#define DFH_TYPE_BBB 2
> +#define DFH_TYPE_PRIVATE 3
> +#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
> +#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
> +#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
> +#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
> +#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
> +#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
> +#define PORT_OFFSET(attr) ((attr) & 0xffffff)
> +#define PORT_FEATURE_UINT_ID 0x12
> +#define PORT_UINT_CAP_REG 0x8
> +#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
> +#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
> +#define PORT_CTRL_REG 0x38
> +#define PORT_SOFT_RESET (0x1 << 0)
> +
> +/* NLB registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_STATUS 0x40
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct nlb_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct nlb_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t wrthru_en:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd1:1;
> + uint32_t delay_en:1;
> + uint32_t rdsel:2;
> + uint32_t rsvd2:1;
> + uint32_t chsel:3;
> + uint32_t rsvd3:1;
> + uint32_t wrpush_i:1;
> + uint32_t wr_chsel:3;
> + uint32_t rsvd4:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t wrfence_chsel:2;
> + };
> + };
> +};
> +
> +struct nlb_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct nlb_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct nlb_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +/* DMA registers definition */
> +#define DMA_CSR 0x40
> +#define DMA_DESC 0x60
> +#define DMA_ASE_CTRL 0x200
> +#define DMA_ASE_DATA 0x1000
> +
> +#define DMA_ASE_WINDOW 4096
> +#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
> +#define INVALID_ASE_PAGE 0xffffffffffffffffULL
> +
> +#define DMA_WF_MAGIC 0x5772745F53796E63ULL
> +#define DMA_WF_MAGIC_ROM 0x1000000000000
> +#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
> +#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
> +
> +#define NUM_DMA_BUF 8
> +#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
> +
> +#define DMA_MASK_32_BIT 0xFFFFFFFF
> +
> +#define DMA_CSR_BUSY 0x1
> +#define DMA_DESC_BUFFER_EMPTY 0x2
> +#define DMA_DESC_BUFFER_FULL 0x4
> +
> +#define DWORD_BYTES 4
> +#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
> +
> +#define QWORD_BYTES 8
> +#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
> +
> +#define DMA_ALIGN_BYTES 64
> +#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
> +
> +#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
> +
> +#define DMA_TIMEOUT_MSEC 5000
> +
> +#define MAGIC_BUF_SIZE 64
> +#define ERR_CHECK_LIMIT 64
> +
> +#ifndef MIN
> +#define MIN(a, b) ((a) < (b) ? (a) : (b))
> +#endif
> +
> +#ifndef ARRAY_SIZE
> +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
> +#endif
> +
> +typedef enum {
> + HOST_TO_FPGA = 0,
> + FPGA_TO_HOST,
> + FPGA_TO_FPGA,
> + FPGA_MAX_TRANSFER_TYPE,
> +} fpga_dma_type;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t tx_channel:8;
> + uint32_t generate_sop:1;
> + uint32_t generate_eop:1;
> + uint32_t park_reads:1;
> + uint32_t park_writes:1;
> + uint32_t end_on_eop:1;
> + uint32_t reserved_1:1;
> + uint32_t transfer_irq_en:1;
> + uint32_t early_term_irq_en:1;
> + uint32_t trans_error_irq_en:8;
> + uint32_t early_done_en:1;
> + uint32_t reserved_2:6;
> + uint32_t go:1;
> + };
> +} msgdma_desc_ctrl;
> +
> +typedef struct __rte_packed {
> + uint32_t rd_address;
> + uint32_t wr_address;
> + uint32_t len;
> + uint16_t seq_num;
> + uint8_t rd_burst_count;
> + uint8_t wr_burst_count;
> + uint16_t rd_stride;
> + uint16_t wr_stride;
> + uint32_t rd_address_ext;
> + uint32_t wr_address_ext;
> + msgdma_desc_ctrl control;
> +} msgdma_ext_desc;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t busy:1;
> + uint32_t desc_buf_empty:1;
> + uint32_t desc_buf_full:1;
> + uint32_t rsp_buf_empty:1;
> + uint32_t rsp_buf_full:1;
> + uint32_t stopped:1;
> + uint32_t resetting:1;
> + uint32_t stopped_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t irq:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_status;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t stop_dispatcher:1;
> + uint32_t reset_dispatcher:1;
> + uint32_t stop_on_error:1;
> + uint32_t stopped_on_early_term:1;
> + uint32_t global_intr_en_mask:1;
> + uint32_t stop_descriptors:1;
> + uint32_t reserved:22;
> + };
> +} msgdma_ctrl;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_fill_level:16;
> + uint32_t wr_fill_level:16;
> + };
> +} msgdma_fill_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rsp_fill_level:16;
> + uint32_t reserved:16;
> + };
> +} msgdma_rsp_level;
> +
> +typedef union {
> + uint32_t csr;
> + struct {
> + uint32_t rd_seq_num:16;
> + uint32_t wr_seq_num:16;
> + };
> +} msgdma_seq_num;
> +
> +typedef struct __rte_packed {
> + msgdma_status status;
> + msgdma_ctrl ctrl;
> + msgdma_fill_level fill_level;
> + msgdma_rsp_level rsp;
> + msgdma_seq_num seq_num;
> +} msgdma_csr;
> +
> +#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
> +#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
> +
> +struct nlb_afu_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct nlb_dsm_status *status_ptr;
> +};
> +
> +struct dma_afu_ctx {
> + int index;
> + uint8_t *addr;
> + uint8_t *csr_addr;
> + uint8_t *desc_addr;
> + uint8_t *ase_ctrl_addr;
> + uint8_t *ase_data_addr;
> + uint64_t mem_size;
> + uint64_t cur_ase_page;
> + int event_fd;
> + int verbose;
> + int pattern;
> + void *data_buf;
> + void *ref_buf;
> + msgdma_ext_desc *desc_buf;
> + uint64_t *magic_buf;
> + uint64_t magic_iova;
> + uint32_t dma_buf_size;
> + uint64_t *dma_buf[NUM_DMA_BUF];
> + uint64_t dma_iova[NUM_DMA_BUF];
> +};
> +
> +struct n3000_afu_priv {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + struct nlb_afu_ctx nlb_ctx;
> + struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
> + int num_dma;
> + int cfg_type;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _AFU_PMD_N3000_H_ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index d9a6f29..2294ab5 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -13,7 +13,8 @@ objs = [base_objs]
> deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> -sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
> +sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> + 'afu_pmd_n3000.c')
>
> includes += include_directories('base')
> includes += include_directories('../../net/ipn3ke')
> diff --git a/drivers/raw/ifpga/rte_pmd_afu.h
> b/drivers/raw/ifpga/rte_pmd_afu.h
> new file mode 100644
> index 0000000..f14a053
> --- /dev/null
> +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> @@ -0,0 +1,97 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright 2022 Intel Corporation
> + */
> +
> +#ifndef __RTE_PMD_AFU_H__
> +#define __RTE_PMD_AFU_H__
> +
> +/**
> + * @file rte_pmd_afu.h
> + *
> + * AFU PMD specific definitions.
> + *
> + * @b EXPERIMENTAL: this API may change, or be removed, without prior
> notice
> + *
> + */
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include <stdint.h>
> +
> +#define RTE_PMD_AFU_N3000_NLB 1
> +#define RTE_PMD_AFU_N3000_DMA 2
> +
> +#define NLB_MODE_LPBK 0
> +#define NLB_MODE_READ 1
> +#define NLB_MODE_WRITE 2
> +#define NLB_MODE_TRPUT 3
> +
> +#define NLB_VC_AUTO 0
> +#define NLB_VC_VL0 1
> +#define NLB_VC_VH0 2
> +#define NLB_VC_VH1 3
> +#define NLB_VC_RANDOM 4
> +
> +#define NLB_WRLINE_M 0
> +#define NLB_WRLINE_I 1
> +#define NLB_WRPUSH_I 2
> +
> +#define NLB_RDLINE_S 0
> +#define NLB_RDLINE_I 1
> +#define NLB_RDLINE_MIXED 2
> +
> +#define MIN_CACHE_LINES 1
> +#define MAX_CACHE_LINES 1024
> +
> +#define MIN_DMA_BUF_SIZE 64
> +#define MAX_DMA_BUF_SIZE (1023 * 1024)
> +
> +/**
> + * NLB AFU configuration data structure.
> + */
> +struct rte_pmd_afu_nlb_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t cache_policy;
> + uint32_t cache_hint;
> + uint32_t read_vc;
> + uint32_t write_vc;
> + uint32_t wrfence_vc;
> + uint32_t freq_mhz;
> +};
> +
> +/**
> + * DMA AFU configuration data structure.
> + */
> +struct rte_pmd_afu_dma_cfg {
> + uint32_t index; /* index of DMA controller */
> + uint32_t length; /* total length of data to DMA */
> + uint32_t offset; /* address offset of target memory */
> + uint32_t size; /* size of transfer buffer */
> + uint32_t pattern; /* data pattern to fill in test buffer */
> + uint32_t unaligned; /* use unaligned address or length in sweep test
> */
> + uint32_t verbose; /* enable verbose error information in test */
> +};
> +
> +/**
> + * N3000 AFU configuration data structure.
> + */
> +struct rte_pmd_afu_n3000_cfg {
> + int type; /* RTE_PMD_AFU_N3000_NLB or
> RTE_PMD_AFU_N3000_DMA */
> + union {
> + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> + struct rte_pmd_afu_dma_cfg dma_cfg;
> + };
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* __RTE_PMD_AFU_H__ */
> --
> 1.8.3.1
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
2022-06-15 7:07 ` Xu, Rosen
@ 2022-06-16 1:10 ` Huang, Wei
0 siblings, 0 replies; 57+ messages in thread
From: Huang, Wei @ 2022-06-16 1:10 UTC (permalink / raw)
To: Xu, Rosen, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
> -----Original Message-----
> From: Xu, Rosen <rosen.xu@intel.com>
> Sent: Wednesday, June 15, 2022 15:08
> To: Huang, Wei <wei.huang@intel.com>; dev@dpdk.org;
> thomas@monjalon.net; nipun.gupta@nxp.com; hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Zhang, Tianfei <tianfei.zhang@intel.com>; Zhang, Qi Z
> <qi.z.zhang@intel.com>
> Subject: RE: [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
>
> Hi Wei,
>
> Some comments.
>
> Thanks,
> Rosen
>
> > -----Original Message-----
> > From: Huang, Wei <wei.huang@intel.com>
> > Sent: Thursday, June 09, 2022 15:37
> > To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> > hemant.agrawal@nxp.com
> > Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> > <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang,
> Wei
> > <wei.huang@intel.com>
> > Subject: [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver
> >
> > N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
> > and DMA is used to test local memory.
> > This driver initialize the modules and report test result.
> >
> > Signed-off-by: Wei Huang <wei.huang@intel.com>
> > ---
> > v2: move source files to ifpga and rename, refine code
> > ---
> > v3: fix Ubuntu 20.04 ARM build
> > ---
> > drivers/raw/ifpga/afu_pmd_core.h | 19 +
> > drivers/raw/ifpga/afu_pmd_n3000.c | 2019
> > +++++++++++++++++++++++++++++++++++++
> > drivers/raw/ifpga/afu_pmd_n3000.h | 339 +++++++
> > drivers/raw/ifpga/meson.build | 3 +-
> > drivers/raw/ifpga/rte_pmd_afu.h | 97 ++
> > 5 files changed, 2476 insertions(+), 1 deletion(-)
> > create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
> > create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
> > create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
> >
> > diff --git a/drivers/raw/ifpga/afu_pmd_core.h
> > b/drivers/raw/ifpga/afu_pmd_core.h
> > index 4fad2c7..a938172 100644
> > --- a/drivers/raw/ifpga/afu_pmd_core.h
> > +++ b/drivers/raw/ifpga/afu_pmd_core.h
> > @@ -14,6 +14,7 @@
> > #include <unistd.h>
> >
> > #include <rte_spinlock.h>
> > +#include <rte_cycles.h>
> > #include <rte_bus_ifpga.h>
> > #include <rte_rawdev.h>
> >
> > @@ -60,6 +61,24 @@ struct afu_rawdev {
> > return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
> > }
> >
> > +#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
> > +#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache
> lines
> > */
> > +#define MHZ(f) ((f) * 1000000)
> > +
> > +#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
> > +({ \
> > + uint64_t __wait = 0; \
> > + uint64_t __invl = (invl); \
> > + uint64_t __timeout = (timeout); \
> > + for (; __wait <= __timeout; __wait += __invl) { \
> > + (val) = *(addr); \
> > + if (cond) \
> > + break; \
> > + rte_delay_ms(__invl); \
> > + } \
> > + (cond) ? 0 : 1; \
> > +})
> > +
> > void afu_pmd_register(struct afu_rawdev_drv *driver);
> > void afu_pmd_unregister(struct afu_rawdev_drv *driver);
> >
> > diff --git a/drivers/raw/ifpga/afu_pmd_n3000.c
> > b/drivers/raw/ifpga/afu_pmd_n3000.c
> > new file mode 100644
> > index 0000000..14f7fe0
> > --- /dev/null
> > +++ b/drivers/raw/ifpga/afu_pmd_n3000.c
> > @@ -0,0 +1,2019 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation
> > + */
> > +
> > +#include <errno.h>
> > +#include <stdio.h>
> > +#include <stdint.h>
> > +#include <stdlib.h>
> > +#include <inttypes.h>
> > +#include <unistd.h>
> > +#include <fcntl.h>
> > +#include <poll.h>
> > +#include <sys/eventfd.h>
> > +#include <sys/ioctl.h>
> > +
> > +#include <rte_eal.h>
> > +#include <rte_malloc.h>
> > +#include <rte_memcpy.h>
> > +#include <rte_io.h>
> > +#include <rte_vfio.h>
> > +#include <rte_bus_pci.h>
> > +#include <rte_bus_ifpga.h>
> > +#include <rte_rawdev.h>
> > +
> > +#include "afu_pmd_core.h"
> > +#include "afu_pmd_n3000.h"
> > +
> > +static int nlb_afu_config(struct afu_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> > + struct nlb_csr_cfg v;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + cfg = &priv->nlb_cfg;
> > +
> > + v.csr = 0;
> > +
> > + if (cfg->cont)
> > + v.cont = 1;
> > +
> > + if (cfg->cache_policy == NLB_WRPUSH_I)
> > + v.wrpush_i = 1;
> > + else
> > + v.wrthru_en = cfg->cache_policy;
> > +
> > + if (cfg->cache_hint == NLB_RDLINE_MIXED)
> > + v.rdsel = 3;
> > + else
> > + v.rdsel = cfg->cache_hint;
> > +
> > + v.mode = cfg->mode;
> > + v.chsel = cfg->read_vc;
> > + v.wr_chsel = cfg->write_vc;
> > + v.wrfence_chsel = cfg->wrfence_vc;
> > + v.wrthru_en = cfg->cache_policy;
> > + v.multicl_len = cfg->multi_cl - 1;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
> > + rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
> > +
> > + return 0;
> > +}
> > +
> > +static void nlb_afu_report(struct afu_rawdev *dev, uint32_t cl)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> > + struct nlb_dsm_status *stat = NULL;
> > + uint64_t ticks = 0;
> > + double num, rd_bw, wr_bw;
> > +
> > + if (!dev || !dev->priv)
> > + return;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > +
> > + cfg = &priv->nlb_cfg;
> > + stat = priv->nlb_ctx.status_ptr;
> > +
> > + if (cfg->cont)
> > + ticks = stat->num_clocks - stat->start_overhead;
> > + else
> > + ticks = stat->num_clocks -
> > + (stat->start_overhead + stat->end_overhead);
> > +
> > + if (cfg->freq_mhz == 0)
> > + cfg->freq_mhz = 200;
> > +
> > + num = (double)stat->num_reads;
> > + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> > + num = (double)stat->num_writes;
> > + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> > +
> > + printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
> > + "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
> > + printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
> > + cl, stat->num_reads, stat->num_writes, ticks,
> > + rd_bw / 1e9, wr_bw / 1e9);
> > +}
> > +
> > +static int nlb_afu_test(struct afu_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct nlb_afu_ctx *ctx = NULL;
> > + struct rte_pmd_afu_nlb_cfg *cfg = NULL;
> > + struct nlb_csr_ctl ctl;
> > + uint32_t *ptr = NULL;
> > + uint32_t i, j, cl, val = 0;
> > + uint64_t sval = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + ctx = &priv->nlb_ctx;
> > + cfg = &priv->nlb_cfg;
> > +
> > + /* initialize registers */
> > + IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx-
> > >dsm_iova);
> > + rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
> > +
> > + ctl.csr = 0;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + ctl.reset = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx-
> > >src_iova);
> > + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr +
> > CSR_SRC_ADDR);
> > + IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx-
> > >dest_iova);
> > + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr +
> > CSR_DST_ADDR);
> > +
> > + ret = nlb_afu_config(dev);
> > + if (ret)
> > + return ret;
> > +
> > + /* initialize src data */
> > + ptr = (uint32_t *)ctx->src_ptr;
> > + j = CLS_TO_SIZE(cfg->end) >> 2;
> > + for (i = 0; i < j; i++)
> > + *ptr++ = i;
> > +
> > + /* start test */
> > + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> > + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> > + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> > +
> > + ctl.csr = 0;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + ctl.reset = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + rte_write32(cl, ctx->addr + CSR_NUM_LINES);
> > +
> > + rte_delay_us(10);
> > +
> > + ctl.start = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > +
> > + if (cfg->cont) {
> > + rte_delay_ms(cfg->timeout * 1000);
> > + ctl.force_completion = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + ret = dsm_poll_timeout(&ctx->status_ptr-
> > >test_complete,
> > + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> > + DSM_TIMEOUT);
> > + if (ret) {
> > + printf("DSM poll timeout\n");
> > + goto end;
> > + }
> > + } else {
> > + ret = dsm_poll_timeout(&ctx->status_ptr-
> > >test_complete,
> > + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> > + DSM_TIMEOUT);
> > + if (ret) {
> > + printf("DSM poll timeout\n");
> > + goto end;
> > + }
> > + ctl.force_completion = 1;
> > + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> > + }
> > +
> > + nlb_afu_report(dev, cl);
> > +
> > + i = 0;
> > + while (i++ < 100) {
> > + sval = rte_read64(ctx->addr + CSR_STATUS1);
> > + if (sval == 0)
> > + break;
> > + rte_delay_us(1000);
> > + }
> > +
> > + ptr = (uint32_t *)ctx->dest_ptr;
> > + j = CLS_TO_SIZE(cl) >> 2;
> > + for (i = 0; i < j; i++) {
> > + if (*ptr++ != i) {
> > + IFPGA_RAWDEV_PMD_ERR("Data mismatch
> > @ %u", i);
> > + break;
> > + }
> > + }
> > + }
> > +
> > +end:
> > + return ret;
> > +}
> > +
> > +static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
> > +{
> > + int i = 0;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + for (i = 0; i < NUM_DMA_BUF; i++) {
> > + rte_free(ctx->dma_buf[i]);
> > + ctx->dma_buf[i] = NULL;
> > + }
> > +
> > + rte_free(ctx->data_buf);
> > + ctx->data_buf = NULL;
> > +
> > + rte_free(ctx->ref_buf);
> > + ctx->ref_buf = NULL;
> > +}
> > +
> > +static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
> > + struct rte_pmd_afu_dma_cfg *cfg)
> > +{
> > + size_t page_sz = sysconf(_SC_PAGE_SIZE);
> > + int i, ret = 0;
> > +
> > + if (!ctx || !cfg)
> > + return -EINVAL;
> > +
> > + for (i = 0; i < NUM_DMA_BUF; i++) {
> > + ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->dma_buf[i]) {
> > + ret = -ENOMEM;
> > + goto free_dma_buf;
> > + }
> > + ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
> > + if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto free_dma_buf;
> > + }
> > + }
> > +
> > + ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
> > + if (!ctx->data_buf) {
> > + ret = -ENOMEM;
> > + goto free_dma_buf;
> > + }
> > +
> > + ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
> > + if (!ctx->ref_buf) {
> > + ret = -ENOMEM;
> > + goto free_data_buf;
> > + }
> > +
> > + return 0;
> > +
> > +free_data_buf:
> > + rte_free(ctx->data_buf);
> > + ctx->data_buf = NULL;
> > +free_dma_buf:
> > + for (i = 0; i < NUM_DMA_BUF; i++) {
> > + rte_free(ctx->dma_buf[i]);
> > + ctx->dma_buf[i] = NULL;
> > + }
> > + return ret;
> > +}
> > +
> > +static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
> > +{
> > + int *ptr = NULL;
> > + size_t i = 0;
> > + size_t dword_size = 0;
> > +
> > + if (!ctx || !size)
> > + return;
> > +
> > + ptr = (int *)ctx->ref_buf;
> > +
> > + if (ctx->pattern) {
> > + memset(ptr, ctx->pattern, size);
> > + } else {
> > + srand(99);
> > + dword_size = size >> 2;
> > + for (i = 0; i < dword_size; i++)
> > + *ptr++ = rand();
> > + }
> > + rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
> > +}
> > +
> > +static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
> > +{
> > + uint8_t *src = NULL;
> > + uint8_t *dst = NULL;
> > + size_t i = 0;
> > + int n = 0;
> > +
> > + if (!ctx || !size)
> > + return -EINVAL;
> > +
> > + src = (uint8_t *)ctx->ref_buf;
> > + dst = (uint8_t *)ctx->data_buf;
> > +
> > + if (memcmp(src, dst, size)) {
> > + printf("Transfer is corrupted\n");
> > + if (ctx->verbose) {
> > + for (i = 0; i < size; i++) {
> > + if (*src != *dst) {
> > + if (++n >= ERR_CHECK_LIMIT)
> > + break;
> > + printf("Mismatch at 0x%zx, "
> > + "Expected %02x
> > Actual %02x\n",
> > + i, *src, *dst);
> > + }
> > + src++;
> > + dst++;
> > + }
> > + if (n < ERR_CHECK_LIMIT) {
> > + printf("Found %d error bytes\n", n);
> > + } else {
> > + printf("......\n");
> > + printf("Found more than %d error bytes\n",
> > n);
> > + }
> > + }
> > + return -1;
> > + }
> > +
> > + printf("Transfer is verified\n");
> > + return 0;
> > +}
> > +
> > +static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr,
> uint64_t
> > bytes)
> > +{
> > + uint64_t qwords = bytes / sizeof(uint64_t);
> > +
> > + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> > + !IS_ALIGNED_QWORD((uint64_t)bytes))
> > + return;
> > +
> > + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> > + rte_write64(*host_addr, dev_addr);
> > +}
> > +
> > +static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t
> > bytes)
> > +{
> > + uint64_t qwords = bytes / sizeof(uint64_t);
> > +
> > + if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
> > + !IS_ALIGNED_QWORD((uint64_t)bytes))
> > + return;
> > +
> > + for (; qwords > 0; qwords--, host_addr++, dev_addr++)
> > + *host_addr = rte_read64(dev_addr);
> > +}
> > +
> > +static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
> > +{
> > + uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + if (requested_page != ctx->cur_ase_page) {
> > + rte_write64(requested_page, ctx->ase_ctrl_addr);
> > + ctx->cur_ase_page = requested_page;
> > + }
> > +}
> > +
> > +static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t
> dev_addr,
> > + uint64_t host_addr, uint32_t count)
> > +{
> > + uint64_t dev_aligned_addr = 0;
> > + uint64_t shift = 0;
> > + uint64_t val = 0;
> > + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> > (0x%x)", host_addr,
> > + dev_addr, count);
> > +
> > + if (!ctx || (count >= QWORD_BYTES))
> > + return -EINVAL;
> > +
> > + if (!count)
> > + return 0;
> > +
> > + switch_ase_page(ctx, dev_addr);
> > +
> > + shift = dev_addr % QWORD_BYTES;
> > + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> > + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> > + rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
> > +
> > + /* write back to device */
> > + rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> > + uint64_t *src_ptr, uint64_t *count)
> > +{
> > + uint64_t src = *src_ptr;
> > + uint64_t dst = *dst_ptr;
> > + uint64_t align_bytes = *count;
> > + uint64_t offset = 0;
> > + uint64_t left_in_page = DMA_ASE_WINDOW;
> > + uint64_t size_to_copy = 0;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> > (0x%"PRIx64")", src, dst,
> > + align_bytes);
> > +
> > + if (!ctx || !IS_ALIGNED_DWORD(dst))
> > + return -EINVAL;
> > +
> > + if (align_bytes < DWORD_BYTES)
> > + return 0;
> > +
> > + if (!IS_ALIGNED_QWORD(dst)) {
> > + /* Write out a single DWORD to get QWORD aligned */
> > + switch_ase_page(ctx, dst);
> > + offset = dst & DMA_ASE_WINDOW_MASK;
> > +
> > + rte_write32(*(uint32_t *)(uintptr_t)src,
> > + ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + if (!align_bytes)
> > + return 0;
> > +
> > + /* Write out blocks of 64-bit values */
> > + while (align_bytes >= QWORD_BYTES) {
> > + left_in_page -= dst & DMA_ASE_WINDOW_MASK;
> > + size_to_copy =
> > + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> > 1)));
> > + if (size_to_copy < QWORD_BYTES)
> > + break;
> > + switch_ase_page(ctx, dst);
> > + offset = dst & DMA_ASE_WINDOW_MASK;
> > + blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
> > + (uint64_t *)(uintptr_t)src, size_to_copy);
> > + src += size_to_copy;
> > + dst += size_to_copy;
> > + align_bytes -= size_to_copy;
> > + }
> > +
> > + if (align_bytes >= DWORD_BYTES) {
> > + /* Write out remaining DWORD */
> > + switch_ase_page(ctx, dst);
> > + offset = dst & DMA_ASE_WINDOW_MASK;
> > + rte_write32(*(uint32_t *)(uintptr_t)src,
> > + ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + *src_ptr = src;
> > + *dst_ptr = dst;
> > + *count = align_bytes;
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
> > + uint64_t *src_ptr, uint64_t count)
> > +{
> > + uint64_t dst = *dst_ptr;
> > + uint64_t src = *src_ptr;
> > + uint64_t count_left = count;
> > + uint64_t unaligned_size = 0;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> > (0x%"PRIx64")", src, dst,
> > + count);
> > +
> > + /* aligns address to 8 byte using dst masking method */
> > + if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
> > + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> > + if (ret)
> > + return ret;
> > + count_left -= unaligned_size;
> > + src += unaligned_size;
> > + dst += unaligned_size;
> > + }
> > +
> > + /* Handles 8/4 byte MMIO transfer */
> > + ret = ase_write(ctx, &dst, &src, &count_left);
> > + if (ret)
> > + return ret;
> > +
> > + /* Left over unaligned bytes transferred using dst masking method
> > */
> > + unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > +
> > + ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
> > + if (ret)
> > + return ret;
> > +
> > + count_left -= unaligned_size;
> > + *dst_ptr = dst + unaligned_size;
> > + *src_ptr = src + unaligned_size;
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t
> dev_addr,
> > + uint64_t host_addr, uint32_t count)
> > +{
> > + uint64_t dev_aligned_addr = 0;
> > + uint64_t shift = 0;
> > + uint64_t val = 0;
> > + uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64"
> > (0x%x)", host_addr,
> > + dev_addr, count);
> > +
> > + if (!ctx || (count >= QWORD_BYTES))
> > + return -EINVAL;
> > +
> > + if (!count)
> > + return 0;
> > +
> > + switch_ase_page(ctx, dev_addr);
> > +
> > + shift = dev_addr % QWORD_BYTES;
> > + dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
> > + val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
> > + rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> > + uint64_t *dst_ptr, uint64_t *count)
> > +{
> > + uint64_t src = *src_ptr;
> > + uint64_t dst = *dst_ptr;
> > + uint64_t align_bytes = *count;
> > + uint64_t offset = 0;
> > + uint64_t left_in_page = DMA_ASE_WINDOW;
> > + uint64_t size_to_copy = 0;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64"
> > (0x%"PRIx64")", dst, src,
> > + align_bytes);
> > +
> > + if (!ctx || !IS_ALIGNED_DWORD(src))
> > + return -EINVAL;
> > +
> > + if (align_bytes < DWORD_BYTES)
> > + return 0;
> > +
> > + if (!IS_ALIGNED_QWORD(src)) {
> > + /* Read a single DWORD to get QWORD aligned */
> > + switch_ase_page(ctx, src);
> > + offset = src & DMA_ASE_WINDOW_MASK;
> > + *(uint32_t *)(uintptr_t)dst =
> > + rte_read32(ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + if (!align_bytes)
> > + return 0;
> > +
> > + /* Read blocks of 64-bit values */
> > + while (align_bytes >= QWORD_BYTES) {
> > + left_in_page -= src & DMA_ASE_WINDOW_MASK;
> > + size_to_copy =
> > + MIN(left_in_page, (align_bytes & ~(QWORD_BYTES -
> > 1)));
> > + if (size_to_copy < QWORD_BYTES)
> > + break;
> > + switch_ase_page(ctx, src);
> > + offset = src & DMA_ASE_WINDOW_MASK;
> > + blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
> > + (uint64_t *)(uintptr_t)dst, size_to_copy);
> > + src += size_to_copy;
> > + dst += size_to_copy;
> > + align_bytes -= size_to_copy;
> > + }
> > +
> > + if (align_bytes >= DWORD_BYTES) {
> > + /* Read remaining DWORD */
> > + switch_ase_page(ctx, src);
> > + offset = src & DMA_ASE_WINDOW_MASK;
> > + *(uint32_t *)(uintptr_t)dst =
> > + rte_read32(ctx->ase_data_addr + offset);
> > + src += DWORD_BYTES;
> > + dst += DWORD_BYTES;
> > + align_bytes -= DWORD_BYTES;
> > + }
> > +
> > + *src_ptr = src;
> > + *dst_ptr = dst;
> > + *count = align_bytes;
> > +
> > + return 0;
> > +}
> > +
> > +static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
> > + uint64_t *dst_ptr, uint64_t count)
> > +{
> > + uint64_t src = *src_ptr;
> > + uint64_t dst = *dst_ptr;
> > + uint64_t count_left = count;
> > + uint64_t unaligned_size = 0;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64"
> > (0x%"PRIx64")", src, dst,
> > + count);
> > +
> > + /* Aligns address to 8 byte using src masking method */
> > + if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
> > + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> > + if (ret)
> > + return ret;
> > + count_left -= unaligned_size;
> > + dst += unaligned_size;
> > + src += unaligned_size;
> > + }
> > +
> > + /* Handles 8/4 byte MMIO transfer */
> > + ret = ase_read(ctx, &src, &dst, &count_left);
> > + if (ret)
> > + return ret;
> > +
> > + /* Left over unaligned bytes transferred using src masking method */
> > + unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
> > + if (unaligned_size > count_left)
> > + unaligned_size = count_left;
> > +
> > + ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
> > + if (ret)
> > + return ret;
> > +
> > + count_left -= unaligned_size;
> > + *dst_ptr = dst + unaligned_size;
> > + *src_ptr = src + unaligned_size;
> > +
> > + return 0;
> > +}
> > +
> > +static void clear_interrupt(struct dma_afu_ctx *ctx)
> > +{
> > + /* clear interrupt by writing 1 to IRQ bit in status register */
> > + msgdma_status status;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + status.csr = 0;
> > + status.irq = 1;
> > + rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
> > +}
> > +
> > +static int poll_interrupt(struct dma_afu_ctx *ctx)
> > +{
> > + struct pollfd pfd = {0};
> > + uint64_t count = 0;
> > + ssize_t bytes_read = 0;
> > + int poll_ret = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || (ctx->event_fd < 0))
> > + return -EINVAL;
> > +
> > + pfd.fd = ctx->event_fd;
> > + pfd.events = POLLIN;
> > + poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
> > + if (poll_ret < 0) {
> > + IFPGA_RAWDEV_PMD_ERR("Error %s", strerror(errno));
> > + ret = -EFAULT;
> > + goto out;
> > + } else if (poll_ret == 0) {
> > + IFPGA_RAWDEV_PMD_ERR("Timeout");
> > + ret = -ETIMEDOUT;
> > + } else {
> > + bytes_read = read(pfd.fd, &count, sizeof(count));
> > + if (bytes_read > 0) {
> > + if (ctx->verbose)
> > + IFPGA_RAWDEV_PMD_DEBUG("Successful,
> > ret %d, cnt %"PRIu64,
> > + poll_ret, count);
> > + ret = 0;
> > + } else {
> > + IFPGA_RAWDEV_PMD_ERR("Failed %s", bytes_read >
> > 0 ?
> > + strerror(errno) : "zero bytes read");
> > + ret = -EIO;
> > + }
> > + }
> > +out:
> > + clear_interrupt(ctx);
> > + return ret;
> > +}
> > +
> > +static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc
> > *desc)
> > +{
> > + msgdma_status status;
> > + uint64_t fpga_queue_full = 0;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + if (ctx->verbose) {
> > + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_address =
> > 0x%x%08x",
> > + desc->rd_address_ext, desc->rd_address);
> > + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_address =
> > 0x%x%08x",
> > + desc->wr_address_ext, desc->wr_address);
> > + IFPGA_RAWDEV_PMD_DEBUG("descriptor.len = %u", desc-
> > >len);
> > + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_burst_count
> > = %u",
> > + desc->wr_burst_count);
> > + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_burst_count
> > = %u",
> > + desc->rd_burst_count);
> > + IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_stride %u",
> > desc->wr_stride);
> > + IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_stride %u",
> > desc->rd_stride);
> > + }
> > +
> > + do {
> > + status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
> > + if (fpga_queue_full++ > 100000000) {
> > + IFPGA_RAWDEV_PMD_DEBUG("DMA queue full
> > retry");
> > + fpga_queue_full = 0;
> > + }
> > + } while (status.desc_buf_full);
> > +
> > + blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
> > + sizeof(*desc));
> > +}
> > +
> > +static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> > + int count, int is_last_desc, fpga_dma_type type, int intr_en)
> > +{
> > + msgdma_ext_desc *desc = NULL;
> > + int alignment_offset = 0;
> > + int segment_size = 0;
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + /* src, dst and count must be 64-byte aligned */
> > + if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
> > + !IS_DMA_ALIGNED(count))
> > + return -EINVAL;
> > + memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
> > +
> > + /* these fields are fixed for all DMA transfers */
> > + desc = ctx->desc_buf;
> > + desc->seq_num = 0;
> > + desc->wr_stride = 1;
> > + desc->rd_stride = 1;
> > + desc->control.go = 1;
> > + if (intr_en)
> > + desc->control.transfer_irq_en = 1;
> > + else
> > + desc->control.transfer_irq_en = 0;
> > +
> > + if (!is_last_desc)
> > + desc->control.early_done_en = 1;
> > + else
> > + desc->control.early_done_en = 0;
> > +
> > + if (type == FPGA_TO_FPGA) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->len = count;
> > + desc->wr_burst_count = 4;
> > + desc->rd_burst_count = 4;
> > + desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
> > + send_descriptor(ctx, desc);
> > + } else {
> > + /* check CCIP (host) address is aligned to 4CL (256B) */
> > + alignment_offset = (type == HOST_TO_FPGA)
> > + ? (src % CCIP_ALIGN_BYTES) : (dst %
> > CCIP_ALIGN_BYTES);
> > + /* performing a short transfer to get aligned */
> > + if (alignment_offset != 0) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->wr_burst_count = 1;
> > + desc->rd_burst_count = 1;
> > + desc->rd_address_ext = (src >> 32) &
> > DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) &
> > DMA_MASK_32_BIT;
> > + /* count isn't large enough to hit next 4CL boundary
> > */
> > + if ((CCIP_ALIGN_BYTES - alignment_offset) >= count)
> > {
> > + segment_size = count;
> > + count = 0;
> > + } else {
> > + segment_size = CCIP_ALIGN_BYTES
> > + - alignment_offset;
> > + src += segment_size;
> > + dst += segment_size;
> > + count -= segment_size;
> > + desc->control.transfer_irq_en = 0;
> > + }
> > + /* post short transfer to align to a 4CL (256 byte) */
> > + desc->len = segment_size;
> > + send_descriptor(ctx, desc);
> > + }
> > + /* at this point we are 4CL (256 byte) aligned */
> > + if (count >= CCIP_ALIGN_BYTES) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->wr_burst_count = 4;
> > + desc->rd_burst_count = 4;
> > + desc->rd_address_ext = (src >> 32) &
> > DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) &
> > DMA_MASK_32_BIT;
> > + /* buffer ends on 4CL boundary */
> > + if ((count % CCIP_ALIGN_BYTES) == 0) {
> > + segment_size = count;
> > + count = 0;
> > + } else {
> > + segment_size = count
> > + - (count % CCIP_ALIGN_BYTES);
> > + src += segment_size;
> > + dst += segment_size;
> > + count -= segment_size;
> > + desc->control.transfer_irq_en = 0;
> > + }
> > + desc->len = segment_size;
> > + send_descriptor(ctx, desc);
> > + }
> > + /* post short transfer to handle the remainder */
> > + if (count > 0) {
> > + desc->rd_address = src & DMA_MASK_32_BIT;
> > + desc->wr_address = dst & DMA_MASK_32_BIT;
> > + desc->len = count;
> > + desc->wr_burst_count = 1;
> > + desc->rd_burst_count = 1;
> > + desc->rd_address_ext = (src >> 32) &
> > DMA_MASK_32_BIT;
> > + desc->wr_address_ext = (dst >> 32) &
> > DMA_MASK_32_BIT;
> > + if (intr_en)
> > + desc->control.transfer_irq_en = 1;
> > + send_descriptor(ctx, desc);
> > + }
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int issue_magic(struct dma_afu_ctx *ctx)
> > +{
> > + *(ctx->magic_buf) = 0ULL;
> > + return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
> > + DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
> > +}
> > +
> > +static void wait_magic(struct dma_afu_ctx *ctx)
> > +{
> > + int magic_timeout = 0;
> > +
> > + if (!ctx)
> > + return;
> > +
> > + poll_interrupt(ctx);
> > + while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
> > + if (magic_timeout++ > 1000) {
> > + IFPGA_RAWDEV_PMD_ERR("DMA magic operation
> > timeout");
> > + magic_timeout = 0;
> > + break;
> > + }
> > + }
> > + *(ctx->magic_buf) = 0ULL;
> > +}
> > +
> > +static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> > + uint64_t chunk, int is_last_chunk, int *intr_issued)
> > +{
> > + int intr_en = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || !intr_issued)
> > + return -EINVAL;
> > +
> > + src += chunk * ctx->dma_buf_size;
> > + dst += chunk * ctx->dma_buf_size;
> > +
> > + if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) ||
> > is_last_chunk) {
> > + if (*intr_issued) {
> > + ret = poll_interrupt(ctx);
> > + if (ret)
> > + return ret;
> > + }
> > + intr_en = 1;
> > + }
> > +
> > + chunk %= NUM_DMA_BUF;
> > + rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
> > + ctx->dma_buf_size);
> > + ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
> > + ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
> > + if (intr_en)
> > + *intr_issued = 1;
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> > uint64_t src,
> > + size_t count)
> > +{
> > + uint64_t i = 0;
> > + uint64_t count_left = count;
> > + uint64_t aligned_addr = 0;
> > + uint64_t align_bytes = 0;
> > + uint64_t dma_chunks = 0;
> > + uint64_t dma_tx_bytes = 0;
> > + uint64_t offset = 0;
> > + int issued_intr = 0;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64"
> > (%zu)", src, dst,
> > + count);
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (!IS_DMA_ALIGNED(dst)) {
> > + if (count_left < DMA_ALIGN_BYTES)
> > + return ase_host_to_fpga(ctx, &dst, &src, count_left);
> > +
> > + aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
> > + * DMA_ALIGN_BYTES;
> > + align_bytes = aligned_addr - dst;
> > + ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
> > + if (ret)
> > + return ret;
> > + count_left = count_left - align_bytes;
> > + }
> > +
> > + if (count_left) {
> > + dma_chunks = count_left / ctx->dma_buf_size;
> > + offset = dma_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --->
> > 0x%"PRIx64
> > + " (%"PRIu64"...0x%"PRIx64")",
> > + src, dst, dma_chunks, count_left);
> > + for (i = 0; i < dma_chunks; i++) {
> > + ret = dma_tx_buf(ctx, dst, src, i,
> > + i == (dma_chunks - 1), &issued_intr);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (issued_intr) {
> > + ret = poll_interrupt(ctx);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (count_left) {
> > + i = count_left / DMA_ALIGN_BYTES;
> > + if (i > 0) {
> > + dma_tx_bytes = i * DMA_ALIGN_BYTES;
> > + IFPGA_RAWDEV_PMD_DEBUG("left over
> > 0x%"PRIx64" to DMA",
> > + dma_tx_bytes);
> > + rte_memcpy(ctx->dma_buf[0],
> > + (void *)(uintptr_t)(src + offset),
> > + dma_tx_bytes);
> > + ret = do_dma(ctx, dst + offset,
> > + DMA_HOST_ADDR(ctx-
> > >dma_iova[0]),
> > + dma_tx_bytes, 1, HOST_TO_FPGA, 1);
> > + if (ret)
> > + return ret;
> > + ret = poll_interrupt(ctx);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + count_left -= dma_tx_bytes;
> > + if (count_left) {
> > + IFPGA_RAWDEV_PMD_DEBUG("left over
> > 0x%"PRIx64" to ASE",
> > + count_left);
> > + dst += offset + dma_tx_bytes;
> > + src += offset + dma_tx_bytes;
> > + ret = ase_host_to_fpga(ctx, &dst, &src,
> > + count_left);
> > + }
> > + }
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
> > + uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
> > +{
> > + uint64_t i = chunk % NUM_DMA_BUF;
> > + uint64_t n = *rx_count;
> > + uint64_t num_pending = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || !wf_issued)
> > + return -EINVAL;
> > +
> > + ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
> > + src + chunk * ctx->dma_buf_size,
> > + ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
> > + if (ret)
> > + return ret;
> > +
> > + num_pending = chunk - n + 1;
> > + if (num_pending == HALF_DMA_BUF) {
> > + ret = issue_magic(ctx);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
> > + return ret;
> > + }
> > + *wf_issued = 1;
> > + }
> > +
> > + if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
> > + if (*wf_issued) {
> > + wait_magic(ctx);
> > + for (i = 0; i < HALF_DMA_BUF; i++) {
> > + rte_memcpy((void *)(uintptr_t)(dst +
> > + n * ctx->dma_buf_size),
> > + ctx->dma_buf[n % NUM_DMA_BUF],
> > + ctx->dma_buf_size);
> > + n++;
> > + }
> > + *wf_issued = 0;
> > + *rx_count = n;
> > + }
> > + ret = issue_magic(ctx);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
> > + return ret;
> > + }
> > + *wf_issued = 1;
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst,
> > uint64_t src,
> > + size_t count)
> > +{
> > + uint64_t i = 0;
> > + uint64_t count_left = count;
> > + uint64_t aligned_addr = 0;
> > + uint64_t align_bytes = 0;
> > + uint64_t dma_chunks = 0;
> > + uint64_t pending_buf = 0;
> > + uint64_t dma_rx_bytes = 0;
> > + uint64_t offset = 0;
> > + int wf_issued = 0;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64"
> > (%zu)", src, dst,
> > + count);
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (!IS_DMA_ALIGNED(src)) {
> > + if (count_left < DMA_ALIGN_BYTES)
> > + return ase_fpga_to_host(ctx, &src, &dst, count_left);
> > +
> > + aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
> > + * DMA_ALIGN_BYTES;
> > + align_bytes = aligned_addr - src;
> > + ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
> > + if (ret)
> > + return ret;
> > + count_left = count_left - align_bytes;
> > + }
> > +
> > + if (count_left) {
> > + dma_chunks = count_left / ctx->dma_buf_size;
> > + offset = dma_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --->
> > 0x%"PRIx64
> > + " (%"PRIu64"...0x%"PRIx64")",
> > + src, dst, dma_chunks, count_left);
> > + for (i = 0; i < dma_chunks; i++) {
> > + ret = dma_rx_buf(ctx, dst, src, i,
> > + i == (dma_chunks - 1),
> > + &pending_buf, &wf_issued);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + if (wf_issued)
> > + wait_magic(ctx);
> > +
> > + /* clear out final dma memcpy operations */
> > + while (pending_buf < dma_chunks) {
> > + /* constant size transfer; no length check required */
> > + rte_memcpy((void *)(uintptr_t)(dst +
> > + pending_buf * ctx->dma_buf_size),
> > + ctx->dma_buf[pending_buf %
> > NUM_DMA_BUF],
> > + ctx->dma_buf_size);
> > + pending_buf++;
> > + }
> > +
> > + if (count_left > 0) {
> > + i = count_left / DMA_ALIGN_BYTES;
> > + if (i > 0) {
> > + dma_rx_bytes = i * DMA_ALIGN_BYTES;
> > + IFPGA_RAWDEV_PMD_DEBUG("left over
> > 0x%"PRIx64" to DMA",
> > + dma_rx_bytes);
> > + ret = do_dma(ctx,
> > + DMA_HOST_ADDR(ctx-
> > >dma_iova[0]),
> > + src + offset,
> > + dma_rx_bytes, 1, FPGA_TO_HOST, 0);
> > + if (ret)
> > + return ret;
> > + ret = issue_magic(ctx);
> > + if (ret)
> > + return ret;
> > + wait_magic(ctx);
> > + rte_memcpy((void *)(uintptr_t)(dst + offset),
> > + ctx->dma_buf[0], dma_rx_bytes);
> > + }
> > +
> > + count_left -= dma_rx_bytes;
> > + if (count_left) {
> > + IFPGA_RAWDEV_PMD_DEBUG("left over
> > 0x%"PRIx64" to ASE",
> > + count_left);
> > + dst += offset + dma_rx_bytes;
> > + src += offset + dma_rx_bytes;
> > + ret = ase_fpga_to_host(ctx, &src, &dst,
> > + count_left);
> > + }
> > + }
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst,
> > uint64_t src,
> > + size_t count)
> > +{
> > + uint64_t i = 0;
> > + uint64_t count_left = count;
> > + uint64_t dma_chunks = 0;
> > + uint64_t offset = 0;
> > + uint32_t tx_chunks = 0;
> > + uint64_t *tmp_buf = NULL;
> > + int ret = 0;
> > +
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64"
> > (%zu)", src, dst,
> > + count);
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
> > + && IS_DMA_ALIGNED(count_left)) {
> > + dma_chunks = count_left / ctx->dma_buf_size;
> > + offset = dma_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --->
> > 0x%"PRIx64
> > + " (%"PRIu64"...0x%"PRIx64")",
> > + src, dst, dma_chunks, count_left);
> > + for (i = 0; i < dma_chunks; i++) {
> > + ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
> > + src + i * ctx->dma_buf_size,
> > + ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
> > + if (ret)
> > + return ret;
> > + if ((((i + 1) % NUM_DMA_BUF) == 0) ||
> > + (i == (dma_chunks - 1))) {
> > + ret = issue_magic(ctx);
> > + if (ret)
> > + return ret;
> > + wait_magic(ctx);
> > + }
> > + }
> > +
> > + if (count_left > 0) {
> > + IFPGA_RAWDEV_PMD_DEBUG("left over
> > 0x%"PRIx64" to DMA", count_left);
> > + ret = do_dma(ctx, dst + offset, src + offset,
> > + count_left, 1, FPGA_TO_FPGA, 0);
> > + if (ret)
> > + return ret;
> > + ret = issue_magic(ctx);
> > + if (ret)
> > + return ret;
> > + wait_magic(ctx);
> > + }
> > + } else {
> > + if ((src < dst) && (src + count_left > dst)) {
> > + IFPGA_RAWDEV_PMD_ERR("Overlapping:
> > 0x%"PRIx64
> > + " -> 0x%"PRIx64" (0x%"PRIx64")",
> > + src, dst, count_left);
> > + return -EINVAL;
> > + }
> > + tx_chunks = count_left / ctx->dma_buf_size;
> > + offset = tx_chunks * ctx->dma_buf_size;
> > + count_left -= offset;
> > + IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" -->
> > 0x%"PRIx64
> > + " (%u...0x%"PRIx64")",
> > + src, dst, tx_chunks, count_left);
> > + tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
> > + DMA_ALIGN_BYTES);
> > + for (i = 0; i < tx_chunks; i++) {
> > + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> > + src + i * ctx->dma_buf_size,
> > + ctx->dma_buf_size);
> > + if (ret)
> > + goto free_buf;
> > + ret = dma_host_to_fpga(ctx,
> > + dst + i * ctx->dma_buf_size,
> > + (uint64_t)tmp_buf, ctx->dma_buf_size);
> > + if (ret)
> > + goto free_buf;
> > + }
> > +
> > + if (count_left > 0) {
> > + ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
> > + src + offset, count_left);
> > + if (ret)
> > + goto free_buf;
> > + ret = dma_host_to_fpga(ctx, dst + offset,
> > + (uint64_t)tmp_buf, count_left);
> > + if (ret)
> > + goto free_buf;
> > + }
> > +free_buf:
> > + rte_free(tmp_buf);
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
> > + uint64_t src, size_t count, fpga_dma_type type)
> > +{
> > + int ret = 0;
> > +
> > + if (!ctx)
> > + return -EINVAL;
> > +
> > + if (type == HOST_TO_FPGA)
> > + ret = dma_host_to_fpga(ctx, dst, src, count);
> > + else if (type == FPGA_TO_HOST)
> > + ret = dma_fpga_to_host(ctx, dst, src, count);
> > + else if (type == FPGA_TO_FPGA)
> > + ret = dma_fpga_to_fpga(ctx, dst, src, count);
> > + else
> > + return -EINVAL;
> > +
> > + return ret;
> > +}
> > +
> > +static double getTime(struct timespec start, struct timespec end)
> > +{
> > + uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
> > + + end.tv_nsec - start.tv_nsec;
> > + return (double)diff / (double)1000000000L;
> > +}
> > +
> Pls rename this function as DPDK program guide.
>
OK, I will rename it according to DPDK guide.
> > +#define SWEEP_ITERS 1
> > +static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
> > + uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
> > +{
> > + struct timespec start, end;
> > + uint64_t test_size = 0;
> > + uint64_t *dma_buf_ptr = NULL;
> > + double throughput, total_time = 0.0;
> > + int i = 0;
> > + int ret = 0;
> > +
> > + if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
> > + IFPGA_RAWDEV_PMD_ERR("Buffer for DMA test is not
> > allocated");
> > + return -EINVAL;
> > + }
> > +
> > + if (length < (buf_offset + size_decrement)) {
> > + IFPGA_RAWDEV_PMD_ERR("Test length does not match
> > unaligned parameter");
> > + return -EINVAL;
> > + }
> > + test_size = length - (buf_offset + size_decrement);
> > + if ((ddr_offset + test_size) > ctx->mem_size) {
> > + IFPGA_RAWDEV_PMD_ERR("Test is out of DDR memory
> > space");
> > + return -EINVAL;
> > + }
> > +
> > + dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
> > + printf("Sweep Host %p to FPGA 0x%"PRIx64
> > + " with 0x%"PRIx64" bytes ...\n",
> > + (void *)dma_buf_ptr, ddr_offset, test_size);
> > +
> > + for (i = 0; i < SWEEP_ITERS; i++) {
> > + clock_gettime(CLOCK_MONOTONIC, &start);
> > + ret = dma_transfer_sync(ctx, ddr_offset,
> > (uint64_t)dma_buf_ptr,
> > + test_size, HOST_TO_FPGA);
> > + clock_gettime(CLOCK_MONOTONIC, &end);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_ERR("Failed");
> > + return ret;
> > + }
> > + total_time += getTime(start, end);
> > + }
> > + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> > + printf("Measured bandwidth = %lf MB/s\n", throughput);
> > +
> > + printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64"
> > bytes ...\n",
> > + ddr_offset, (void *)dma_buf_ptr, test_size);
> > +
> > + total_time = 0.0;
> > + memset((char *)dma_buf_ptr, 0, test_size);
> > + for (i = 0; i < SWEEP_ITERS; i++) {
> > + clock_gettime(CLOCK_MONOTONIC, &start);
> > + ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr,
> > ddr_offset,
> > + test_size, FPGA_TO_HOST);
> > + clock_gettime(CLOCK_MONOTONIC, &end);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_ERR("Failed");
> > + return ret;
> > + }
> > + total_time += getTime(start, end);
> > + }
> > + throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
> > + printf("Measured bandwidth = %lf MB/s\n", throughput);
> > +
> > + printf("Verifying buffer ...\n");
> > + return dma_afu_buf_verify(ctx, test_size);
> > +}
> > +
> > +static int dma_afu_test(struct afu_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct dma_afu_ctx *ctx = NULL;
> > + struct rte_pmd_afu_dma_cfg *cfg = NULL;
> > + msgdma_ctrl ctrl;
> > + uint64_t offset = 0;
> > + uint32_t i = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + cfg = &priv->dma_cfg;
> > + if (cfg->index >= NUM_N3000_DMA)
> > + return -EINVAL;
> > + ctx = &priv->dma_ctx[cfg->index];
> > +
> > + ctx->pattern = (int)cfg->pattern;
> > + ctx->verbose = (int)cfg->verbose;
> > + ctx->dma_buf_size = cfg->size;
> > +
> > + ret = dma_afu_buf_alloc(ctx, cfg);
> > + if (ret)
> > + goto free;
> > +
> > + printf("Initialize test buffer\n");
> > + dma_afu_buf_init(ctx, cfg->length);
> > +
> > + /* enable interrupt */
> > + ctrl.csr = 0;
> > + ctrl.global_intr_en_mask = 1;
> > + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> > +
> > + printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
> > + cfg->offset, cfg->length);
> > + ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
> > + cfg->length, HOST_TO_FPGA);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> > host to FPGA");
> > + goto end;
> > + }
> > + memset(ctx->data_buf, 0, cfg->length);
> > +
> > + printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
> > + ctx->data_buf, cfg->length);
> > + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
> > + cfg->length, FPGA_TO_HOST);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> > FPGA to host");
> > + goto end;
> > + }
> > + ret = dma_afu_buf_verify(ctx, cfg->length);
> > + if (ret)
> > + goto end;
> > +
> > + if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
> > + offset = cfg->offset + cfg->length;
> > + else if (cfg->offset > cfg->length)
> > + offset = 0;
> > + else
> > + goto end;
> > +
> > + printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
> > + cfg->offset, offset, cfg->length);
> > + ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
> > + FPGA_TO_FPGA);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> > FPGA to FPGA");
> > + goto end;
> > + }
> > +
> > + printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
> > + ctx->data_buf, cfg->length);
> > + ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
> > + cfg->length, FPGA_TO_HOST);
> > + if (ret) {
> > + IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from
> > FPGA to host");
> > + goto end;
> > + }
> > + ret = dma_afu_buf_verify(ctx, cfg->length);
> > + if (ret)
> > + goto end;
> > +
> > + printf("Sweep with aligned address and size\n");
> > + ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
> > + if (ret)
> > + goto end;
> > +
> > + if (cfg->unaligned) {
> > + printf("Sweep with unaligned address and size\n");
> > + struct unaligned_set {
> > + uint64_t addr_offset;
> > + uint64_t size_dec;
> > + } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
> > + for (i = 0; i < ARRAY_SIZE(param); i++) {
> > + ret = sweep_test(ctx, cfg->length, cfg->offset,
> > + param[i].addr_offset, param[i].size_dec);
> > + if (ret)
> > + break;
> > + }
> > + }
> > +
> > +end:
> > + /* disable interrupt */
> > + ctrl.global_intr_en_mask = 0;
> > + rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
> > +
> > +free:
> > + dma_afu_buf_free(ctx);
> > + return ret;
> > +}
> > +
> > +static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_rawdev
> > *dev)
> > +{
> > + struct rte_afu_device *afudev = NULL;
> > +
> > + if (!dev || !dev->rawdev || !dev->rawdev->device)
> > + return NULL;
> > +
> > + afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
> > + if (!afudev->rawdev || !afudev->rawdev->device)
> > + return NULL;
> > +
> > + return RTE_DEV_TO_PCI(afudev->rawdev->device);
> > +}
> > +
> > +#ifdef VFIO_PRESENT
> > +static int dma_afu_set_irqs(struct afu_rawdev *dev, uint32_t vec_start,
> > + uint32_t count, int *efds)
> > +{
> > + struct rte_pci_device *pci_dev = NULL;
> > + struct vfio_irq_set *irq_set = NULL;
> > + int vfio_dev_fd = 0;
> > + size_t sz = 0;
> > + int ret = 0;
> > +
> > + if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
> > + return -EINVAL;
> > +
> > + pci_dev = n3000_afu_get_pci_dev(dev);
> > + if (!pci_dev)
> > + return -ENODEV;
> > + vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
> > +
> > + sz = sizeof(*irq_set) + sizeof(*efds) * count;
> > + irq_set = rte_zmalloc(NULL, sz, 0);
> > + if (!irq_set)
> > + return -ENOMEM;
> > +
> > + irq_set->argsz = (uint32_t)sz;
> > + irq_set->count = count;
> > + irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
> > + VFIO_IRQ_SET_ACTION_TRIGGER;
> > + irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
> > + irq_set->start = vec_start;
> > +
> > + rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
> > + ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
> > + if (ret)
> > + IFPGA_RAWDEV_PMD_ERR("Error enabling MSI-X
> > interrupts\n");
> > +
> > + rte_free(irq_set);
> > + return ret;
> > +}
> > +#endif
> > +
> > +static void *n3000_afu_get_port_addr(struct afu_rawdev *dev)
> > +{
> > + struct rte_pci_device *pci_dev = NULL;
> > + uint8_t *addr = NULL;
> > + uint64_t val = 0;
> > + uint32_t bar = 0;
> > +
> > + pci_dev = n3000_afu_get_pci_dev(dev);
> > + if (!pci_dev)
> > + return NULL;
> > +
> > + addr = (uint8_t *)pci_dev->mem_resource[0].addr;
> > + val = rte_read64(addr + PORT_ATTR_REG(dev->port));
> > + if (!PORT_IMPLEMENTED(val)) {
> > + IFPGA_RAWDEV_PMD_INFO("FIU port %d is not
> > implemented", dev->port);
> > + return NULL;
> > + }
> > +
> > + bar = PORT_BAR(val);
> > + if (bar >= PCI_MAX_RESOURCE) {
> > + IFPGA_RAWDEV_PMD_ERR("BAR index %u is out of limit",
> > bar);
> > + return NULL;
> > + }
> > +
> > + addr = (uint8_t *)pci_dev->mem_resource[bar].addr +
> > PORT_OFFSET(val);
> > + return addr;
> > +}
> > +
> > +static int n3000_afu_get_irq_capability(struct afu_rawdev *dev,
> > + uint32_t *vec_start, uint32_t *vec_count)
> > +{
> > + uint8_t *addr = NULL;
> > + uint64_t val = 0;
> > + uint64_t header = 0;
> > + uint64_t next_offset = 0;
> > +
> > + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> > + if (!addr)
> > + return -ENOENT;
> > +
> > + do {
> > + addr += next_offset;
> > + header = rte_read64(addr);
> > + if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
> > + (DFH_FEATURE_ID(header) ==
> > PORT_FEATURE_UINT_ID)) {
> > + val = rte_read64(addr + PORT_UINT_CAP_REG);
> > + if (vec_start)
> > + *vec_start = PORT_VEC_START(val);
> > + if (vec_count)
> > + *vec_count = PORT_VEC_COUNT(val);
> > + return 0;
> > + }
> > + next_offset = DFH_NEXT_OFFSET(header);
> > + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> > + break;
> > + } while (!DFH_EOL(header));
> > +
> > + return -ENOENT;
> > +}
> > +
> > +static int nlb_afu_ctx_release(struct afu_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct nlb_afu_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->nlb_ctx;
> > +
> > + rte_free(ctx->dsm_ptr);
> > + ctx->dsm_ptr = NULL;
> > + ctx->status_ptr = NULL;
> > +
> > + rte_free(ctx->src_ptr);
> > + ctx->src_ptr = NULL;
> > +
> > + rte_free(ctx->dest_ptr);
> > + ctx->dest_ptr = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int nlb_afu_ctx_init(struct afu_rawdev *dev, uint8_t *addr)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct nlb_afu_ctx *ctx = NULL;
> > + int ret = 0;
> > +
> > + if (!dev || !addr)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->nlb_ctx;
> > + ctx->addr = addr;
> > +
> > + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> > TEST_MEM_ALIGN);
> > + if (!ctx->dsm_ptr)
> > + return -ENOMEM;
> > +
> > + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> > + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release_dsm;
> > + }
> > +
> > + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->src_ptr) {
> > + ret = -ENOMEM;
> > + goto release_dsm;
> > + }
> > + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> > + if (ctx->src_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release_src;
> > + }
> > +
> > + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->dest_ptr) {
> > + ret = -ENOMEM;
> > + goto release_src;
> > + }
> > + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> > + if (ctx->dest_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release_dest;
> > + }
> > +
> > + ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr +
> > DSM_STATUS);
> > + return 0;
> > +
> > +release_dest:
> > + rte_free(ctx->dest_ptr);
> > + ctx->dest_ptr = NULL;
> > +release_src:
> > + rte_free(ctx->src_ptr);
> > + ctx->src_ptr = NULL;
> > +release_dsm:
> > + rte_free(ctx->dsm_ptr);
> > + ctx->dsm_ptr = NULL;
> > + return ret;
> > +}
> > +
> > +static int dma_afu_ctx_release(struct afu_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct dma_afu_ctx *ctx = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->dma_ctx[0];
> > +
> > + rte_free(ctx->desc_buf);
> > + ctx->desc_buf = NULL;
> > +
> > + rte_free(ctx->magic_buf);
> > + ctx->magic_buf = NULL;
> > +
> > + close(ctx->event_fd);
> > + return 0;
> > +}
> > +
> > +static int dma_afu_ctx_init(struct afu_rawdev *dev, int index, uint8_t
> > *addr)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct dma_afu_ctx *ctx = NULL;
> > + uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000,
> > 0x1000000};
> > + static int efds[1] = {0};
> > + uint32_t vec_start = 0;
> > + int ret = 0;
> > +
> > + if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + ctx = &priv->dma_ctx[index];
> > + ctx->index = index;
> > + ctx->addr = addr;
> > + ctx->csr_addr = addr + DMA_CSR;
> > + ctx->desc_addr = addr + DMA_DESC;
> > + ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
> > + ctx->ase_data_addr = addr + DMA_ASE_DATA;
> > + ctx->mem_size = mem_sz[ctx->index];
> > + ctx->cur_ase_page = INVALID_ASE_PAGE;
> > + if (ctx->index == 0) {
> > + ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
> > + if (ret)
> > + return ret;
> > +
> > + efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
> > + if (efds[0] < 0) {
> > + IFPGA_RAWDEV_PMD_ERR("eventfd create failed");
> > + return -EBADF;
> > + }
> > +#ifdef VFIO_PRESENT
> > + if (dma_afu_set_irqs(dev, vec_start, 1, efds))
> > + IFPGA_RAWDEV_PMD_ERR("DMA interrupt setup
> > failed");
> > +#endif
> > + }
> > + ctx->event_fd = efds[0];
> > +
> > + ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
> > + sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
> > + if (!ctx->desc_buf) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
> > + TEST_MEM_ALIGN);
> > + if (!ctx->magic_buf) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > + ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
> > + if (ctx->magic_iova == RTE_BAD_IOVA) {
> > + ret = -ENOMEM;
> > + goto release;
> > + }
> > +
> > + return 0;
> > +
> > +release:
> > + dma_afu_ctx_release(dev);
> > + return ret;
> > +}
> > +
> > +static int n3000_afu_ctx_init(struct afu_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + uint8_t *addr = NULL;
> > + uint64_t header = 0;
> > + uint64_t uuid_hi = 0;
> > + uint64_t uuid_lo = 0;
> > + uint64_t next_offset = 0;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + addr = (uint8_t *)dev->addr;
> > + do {
> > + addr += next_offset;
> > + header = rte_read64(addr);
> > + uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
> > + uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
> > +
> > + if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
> > + (uuid_lo == N3000_NLB0_UUID_L) &&
> > + (uuid_hi == N3000_NLB0_UUID_H)) {
> > + IFPGA_RAWDEV_PMD_INFO("AFU NLB0 found
> > @ %p", (void *)addr);
> > + ret = nlb_afu_ctx_init(dev, addr);
> > + if (ret)
> > + return ret;
> > + } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
> > + (uuid_lo == N3000_DMA_UUID_L) &&
> > + (uuid_hi == N3000_DMA_UUID_H) &&
> > + (priv->num_dma < NUM_N3000_DMA)) {
> > + IFPGA_RAWDEV_PMD_INFO("AFU DMA%d found
> > @ %p",
> > + priv->num_dma, (void *)addr);
> > + ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
> > + if (ret)
> > + return ret;
> > + priv->num_dma++;
> > + } else {
> > + IFPGA_RAWDEV_PMD_DEBUG("DFH: type %"PRIu64
> > + ", uuid %016"PRIx64"%016"PRIx64,
> > + DFH_TYPE(header), uuid_hi, uuid_lo);
> > + }
> > +
> > + next_offset = DFH_NEXT_OFFSET(header);
> > + if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
> > + break;
> > + } while (!DFH_EOL(header));
> > +
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_init(struct afu_rawdev *dev)
> > +{
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv) {
> > + dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv),
> > 0);
> > + if (!dev->priv)
> > + return -ENOMEM;
> > + }
> > +
> > + return n3000_afu_ctx_init(dev);
> > +}
> > +
> > +static int n3000_afu_config(struct afu_rawdev *dev, void *config,
> > + size_t config_size)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + struct rte_pmd_afu_n3000_cfg *cfg = NULL;
> > + int i = 0;
> > + uint64_t top = 0;
> > +
> > + if (!dev || !config || !config_size)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
> > + return -EINVAL;
> > +
> > + cfg = (struct rte_pmd_afu_n3000_cfg *)config;
> > + if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
> > + if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
> > + (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
> > + return -EINVAL;
> > + if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
> > + return -EINVAL;
> > + if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
> > + return -EINVAL;
> > + if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.multi_cl != 1) &&
> > + (cfg->nlb_cfg.multi_cl != 2) &&
> > + (cfg->nlb_cfg.multi_cl != 4))
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
> > + (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
> > + return -EINVAL;
> > + if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
> > + (cfg->nlb_cfg.end > MAX_CACHE_LINES))
> > + return -EINVAL;
> > + rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
> > + sizeof(struct rte_pmd_afu_nlb_cfg));
> > + } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
> > + if (cfg->dma_cfg.index >= NUM_N3000_DMA)
> > + return -EINVAL;
> > + i = cfg->dma_cfg.index;
> > + if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
> > + return -EINVAL;
> > + if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
> > + return -EINVAL;
> > + top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
> > + if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
> > + return -EINVAL;
> > + if (i == 3) { /* QDR connected to DMA3 */
> > + if (cfg->dma_cfg.length & 0x3f) {
> > + cfg->dma_cfg.length &= ~0x3f;
> > + IFPGA_RAWDEV_PMD_INFO("Round size
> > to %x for QDR",
> > + cfg->dma_cfg.length);
> > + }
> > + }
> > + rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
> > + sizeof(struct rte_pmd_afu_dma_cfg));
> > + } else {
> > + IFPGA_RAWDEV_PMD_ERR("Invalid type of N3000 AFU");
> > + return -EINVAL;
> > + }
> > +
> > + priv->cfg_type = cfg->type;
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_test(struct afu_rawdev *dev)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > + int ret = 0;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + if (!dev->priv)
> > + return -ENOENT;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > +
> > + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> > + IFPGA_RAWDEV_PMD_INFO("Test NLB");
> > + ret = nlb_afu_test(dev);
> > + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> > + IFPGA_RAWDEV_PMD_INFO("Test DMA%u", priv-
> > >dma_cfg.index);
> > + ret = dma_afu_test(dev);
> > + } else {
> > + IFPGA_RAWDEV_PMD_ERR("Please configure AFU before
> > test");
> > + ret = -EINVAL;
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int n3000_afu_close(struct afu_rawdev *dev)
> > +{
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + nlb_afu_ctx_release(dev);
> > + dma_afu_ctx_release(dev);
> > +
> > + rte_free(dev->priv);
> > + dev->priv = NULL;
> > +
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_dump(struct afu_rawdev *dev, FILE *f)
> > +{
> > + struct n3000_afu_priv *priv = NULL;
> > +
> > + if (!dev)
> > + return -EINVAL;
> > +
> > + priv = (struct n3000_afu_priv *)dev->priv;
> > + if (!priv)
> > + return -ENOENT;
> > +
> > + if (!f)
> > + f = stdout;
> > +
> > + if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
> > + struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
> > + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> > + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> > + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> > + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> > + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> > + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> > + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> > + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> > + } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
> > + struct dma_afu_ctx *ctx = &priv->dma_ctx[priv-
> > >dma_cfg.index];
> > + fprintf(f, "index:\t\t%d\n", ctx->index);
> > + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> > + fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
> > + fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
> > + fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
> > + fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx-
> > >ase_data_addr);
> > + fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
> > + fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
> > + fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
> > + } else {
> > + return -EINVAL;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int n3000_afu_reset(struct afu_rawdev *dev)
> > +{
> > + uint8_t *addr = NULL;
> > + uint64_t val = 0;
> > +
> > + addr = (uint8_t *)n3000_afu_get_port_addr(dev);
> > + if (!addr)
> > + return -ENOENT;
> > +
> > + val = rte_read64(addr + PORT_CTRL_REG);
> > + val |= PORT_SOFT_RESET;
> > + rte_write64(val, addr + PORT_CTRL_REG);
> > + rte_delay_us(100);
> > + val &= ~PORT_SOFT_RESET;
> > + rte_write64(val, addr + PORT_CTRL_REG);
> > +
> > + return 0;
> > +}
> > +
> > +static struct afu_ops n3000_afu_ops = {
> > + .init = n3000_afu_init,
> > + .config = n3000_afu_config,
> > + .start = NULL,
> > + .stop = NULL,
> > + .test = n3000_afu_test,
> > + .close = n3000_afu_close,
> > + .dump = n3000_afu_dump,
> > + .reset = n3000_afu_reset
> > +};
> > +
> > +static struct afu_rawdev_drv n3000_afu_drv = {
> > + .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
> > + .ops = &n3000_afu_ops
> > +};
> > +
> > +AFU_PMD_REGISTER(n3000_afu_drv);
> > diff --git a/drivers/raw/ifpga/afu_pmd_n3000.h
> > b/drivers/raw/ifpga/afu_pmd_n3000.h
> > new file mode 100644
> > index 0000000..67e83fe
> > --- /dev/null
> > +++ b/drivers/raw/ifpga/afu_pmd_n3000.h
> > @@ -0,0 +1,339 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright(c) 2022 Intel Corporation
> > + */
> > +
> > +#ifndef _AFU_PMD_N3000_H_
> > +#define _AFU_PMD_N3000_H_
> > +
> > +#ifdef __cplusplus
> > +extern "C" {
> > +#endif
> > +
> > +#include "afu_pmd_core.h"
> > +#include "rte_pmd_afu.h"
> > +
> > +#define N3000_AFU_UUID_L 0xc000c9660d824272
> > +#define N3000_AFU_UUID_H 0x9aeffe5f84570612
> > +#define N3000_NLB0_UUID_L 0xf89e433683f9040b
> > +#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
> > +#define N3000_DMA_UUID_L 0xa9149a35bace01ea
> > +#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
> > +
> > +#define NUM_N3000_DMA 4
> > +#define MAX_MSIX_VEC 7
> > +
> > +/* N3000 DFL definition */
> > +#define DFH_UUID_L_OFFSET 8
> > +#define DFH_UUID_H_OFFSET 16
> > +#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
> > +#define DFH_TYPE_AFU 1
> > +#define DFH_TYPE_BBB 2
> > +#define DFH_TYPE_PRIVATE 3
> > +#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
> > +#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
> > +#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
> > +#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
> > +#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
> > +#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
> > +#define PORT_OFFSET(attr) ((attr) & 0xffffff)
> > +#define PORT_FEATURE_UINT_ID 0x12
> > +#define PORT_UINT_CAP_REG 0x8
> > +#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
> > +#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
> > +#define PORT_CTRL_REG 0x38
> > +#define PORT_SOFT_RESET (0x1 << 0)
> > +
> > +/* NLB registers definition */
> > +#define CSR_SCRATCHPAD0 0x100
> > +#define CSR_SCRATCHPAD1 0x108
> > +#define CSR_AFU_DSM_BASEL 0x110
> > +#define CSR_AFU_DSM_BASEH 0x114
> > +#define CSR_SRC_ADDR 0x120
> > +#define CSR_DST_ADDR 0x128
> > +#define CSR_NUM_LINES 0x130
> > +#define CSR_CTL 0x138
> > +#define CSR_CFG 0x140
> > +#define CSR_INACT_THRESH 0x148
> > +#define CSR_INTERRUPT0 0x150
> > +#define CSR_SWTEST_MSG 0x158
> > +#define CSR_STATUS0 0x160
> > +#define CSR_STATUS1 0x168
> > +#define CSR_ERROR 0x170
> > +#define CSR_STRIDE 0x178
> > +#define CSR_HE_INFO0 0x180
> > +
> > +#define DSM_SIZE 0x200000
> > +#define DSM_STATUS 0x40
> > +#define DSM_POLL_INTERVAL 5 /* ms */
> > +#define DSM_TIMEOUT 1000 /* ms */
> > +
> > +#define NLB_BUF_SIZE 0x400000
> > +#define TEST_MEM_ALIGN 1024
> > +
> > +struct nlb_csr_ctl {
> > + union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t reset:1;
> > + uint32_t start:1;
> > + uint32_t force_completion:1;
> > + uint32_t reserved:29;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_csr_cfg {
> > + union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t wrthru_en:1;
> > + uint32_t cont:1;
> > + uint32_t mode:3;
> > + uint32_t multicl_len:2;
> > + uint32_t rsvd1:1;
> > + uint32_t delay_en:1;
> > + uint32_t rdsel:2;
> > + uint32_t rsvd2:1;
> > + uint32_t chsel:3;
> > + uint32_t rsvd3:1;
> > + uint32_t wrpush_i:1;
> > + uint32_t wr_chsel:3;
> > + uint32_t rsvd4:3;
> > + uint32_t test_cfg:5;
> > + uint32_t interrupt_on_error:1;
> > + uint32_t interrupt_testmode:1;
> > + uint32_t wrfence_chsel:2;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_status0 {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t num_writes;
> > + uint32_t num_reads;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_status1 {
> > + union {
> > + uint64_t csr;
> > + struct {
> > + uint32_t num_pend_writes;
> > + uint32_t num_pend_reads;
> > + };
> > + };
> > +};
> > +
> > +struct nlb_dsm_status {
> > + uint32_t test_complete;
> > + uint32_t test_error;
> > + uint64_t num_clocks;
> > + uint32_t num_reads;
> > + uint32_t num_writes;
> > + uint32_t start_overhead;
> > + uint32_t end_overhead;
> > +};
> > +
> > +/* DMA registers definition */
> > +#define DMA_CSR 0x40
> > +#define DMA_DESC 0x60
> > +#define DMA_ASE_CTRL 0x200
> > +#define DMA_ASE_DATA 0x1000
> > +
> > +#define DMA_ASE_WINDOW 4096
> > +#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW -
> 1))
> > +#define INVALID_ASE_PAGE 0xffffffffffffffffULL
> > +
> > +#define DMA_WF_MAGIC 0x5772745F53796E63ULL
> > +#define DMA_WF_MAGIC_ROM 0x1000000000000
> > +#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
> > +#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
> > +
> > +#define NUM_DMA_BUF 8
> > +#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
> > +
> > +#define DMA_MASK_32_BIT 0xFFFFFFFF
> > +
> > +#define DMA_CSR_BUSY 0x1
> > +#define DMA_DESC_BUFFER_EMPTY 0x2
> > +#define DMA_DESC_BUFFER_FULL 0x4
> > +
> > +#define DWORD_BYTES 4
> > +#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
> > +
> > +#define QWORD_BYTES 8
> > +#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
> > +
> > +#define DMA_ALIGN_BYTES 64
> > +#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
> > +
> > +#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
> > +
> > +#define DMA_TIMEOUT_MSEC 5000
> > +
> > +#define MAGIC_BUF_SIZE 64
> > +#define ERR_CHECK_LIMIT 64
> > +
> > +#ifndef MIN
> > +#define MIN(a, b) ((a) < (b) ? (a) : (b))
> > +#endif
> > +
> > +#ifndef ARRAY_SIZE
> > +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
> > +#endif
> > +
> > +typedef enum {
> > + HOST_TO_FPGA = 0,
> > + FPGA_TO_HOST,
> > + FPGA_TO_FPGA,
> > + FPGA_MAX_TRANSFER_TYPE,
> > +} fpga_dma_type;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t tx_channel:8;
> > + uint32_t generate_sop:1;
> > + uint32_t generate_eop:1;
> > + uint32_t park_reads:1;
> > + uint32_t park_writes:1;
> > + uint32_t end_on_eop:1;
> > + uint32_t reserved_1:1;
> > + uint32_t transfer_irq_en:1;
> > + uint32_t early_term_irq_en:1;
> > + uint32_t trans_error_irq_en:8;
> > + uint32_t early_done_en:1;
> > + uint32_t reserved_2:6;
> > + uint32_t go:1;
> > + };
> > +} msgdma_desc_ctrl;
> > +
> > +typedef struct __rte_packed {
> > + uint32_t rd_address;
> > + uint32_t wr_address;
> > + uint32_t len;
> > + uint16_t seq_num;
> > + uint8_t rd_burst_count;
> > + uint8_t wr_burst_count;
> > + uint16_t rd_stride;
> > + uint16_t wr_stride;
> > + uint32_t rd_address_ext;
> > + uint32_t wr_address_ext;
> > + msgdma_desc_ctrl control;
> > +} msgdma_ext_desc;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t busy:1;
> > + uint32_t desc_buf_empty:1;
> > + uint32_t desc_buf_full:1;
> > + uint32_t rsp_buf_empty:1;
> > + uint32_t rsp_buf_full:1;
> > + uint32_t stopped:1;
> > + uint32_t resetting:1;
> > + uint32_t stopped_on_error:1;
> > + uint32_t stopped_on_early_term:1;
> > + uint32_t irq:1;
> > + uint32_t reserved:22;
> > + };
> > +} msgdma_status;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t stop_dispatcher:1;
> > + uint32_t reset_dispatcher:1;
> > + uint32_t stop_on_error:1;
> > + uint32_t stopped_on_early_term:1;
> > + uint32_t global_intr_en_mask:1;
> > + uint32_t stop_descriptors:1;
> > + uint32_t reserved:22;
> > + };
> > +} msgdma_ctrl;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t rd_fill_level:16;
> > + uint32_t wr_fill_level:16;
> > + };
> > +} msgdma_fill_level;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t rsp_fill_level:16;
> > + uint32_t reserved:16;
> > + };
> > +} msgdma_rsp_level;
> > +
> > +typedef union {
> > + uint32_t csr;
> > + struct {
> > + uint32_t rd_seq_num:16;
> > + uint32_t wr_seq_num:16;
> > + };
> > +} msgdma_seq_num;
> > +
> > +typedef struct __rte_packed {
> > + msgdma_status status;
> > + msgdma_ctrl ctrl;
> > + msgdma_fill_level fill_level;
> > + msgdma_rsp_level rsp;
> > + msgdma_seq_num seq_num;
> > +} msgdma_csr;
> > +
> > +#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
> > +#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
> > +
> > +struct nlb_afu_ctx {
> > + uint8_t *addr;
> > + uint8_t *dsm_ptr;
> > + uint64_t dsm_iova;
> > + uint8_t *src_ptr;
> > + uint64_t src_iova;
> > + uint8_t *dest_ptr;
> > + uint64_t dest_iova;
> > + struct nlb_dsm_status *status_ptr;
> > +};
> > +
> > +struct dma_afu_ctx {
> > + int index;
> > + uint8_t *addr;
> > + uint8_t *csr_addr;
> > + uint8_t *desc_addr;
> > + uint8_t *ase_ctrl_addr;
> > + uint8_t *ase_data_addr;
> > + uint64_t mem_size;
> > + uint64_t cur_ase_page;
> > + int event_fd;
> > + int verbose;
> > + int pattern;
> > + void *data_buf;
> > + void *ref_buf;
> > + msgdma_ext_desc *desc_buf;
> > + uint64_t *magic_buf;
> > + uint64_t magic_iova;
> > + uint32_t dma_buf_size;
> > + uint64_t *dma_buf[NUM_DMA_BUF];
> > + uint64_t dma_iova[NUM_DMA_BUF];
> > +};
> > +
> > +struct n3000_afu_priv {
> > + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> > + struct rte_pmd_afu_dma_cfg dma_cfg;
> > + struct nlb_afu_ctx nlb_ctx;
> > + struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
> > + int num_dma;
> > + int cfg_type;
> > +};
> > +
> > +#ifdef __cplusplus
> > +}
> > +#endif
> > +
> > +#endif /* _AFU_PMD_N3000_H_ */
> > diff --git a/drivers/raw/ifpga/meson.build
> b/drivers/raw/ifpga/meson.build
> > index d9a6f29..2294ab5 100644
> > --- a/drivers/raw/ifpga/meson.build
> > +++ b/drivers/raw/ifpga/meson.build
> > @@ -13,7 +13,8 @@ objs = [base_objs]
> > deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> > 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
> >
> > -sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
> > +sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> > + 'afu_pmd_n3000.c')
> >
> > includes += include_directories('base')
> > includes += include_directories('../../net/ipn3ke')
> > diff --git a/drivers/raw/ifpga/rte_pmd_afu.h
> > b/drivers/raw/ifpga/rte_pmd_afu.h
> > new file mode 100644
> > index 0000000..f14a053
> > --- /dev/null
> > +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> > @@ -0,0 +1,97 @@
> > +/* SPDX-License-Identifier: BSD-3-Clause
> > + * Copyright 2022 Intel Corporation
> > + */
> > +
> > +#ifndef __RTE_PMD_AFU_H__
> > +#define __RTE_PMD_AFU_H__
> > +
> > +/**
> > + * @file rte_pmd_afu.h
> > + *
> > + * AFU PMD specific definitions.
> > + *
> > + * @b EXPERIMENTAL: this API may change, or be removed, without prior
> > notice
> > + *
> > + */
> > +
> > +#ifdef __cplusplus
> > +extern "C" {
> > +#endif
> > +
> > +#include <stdint.h>
> > +
> > +#define RTE_PMD_AFU_N3000_NLB 1
> > +#define RTE_PMD_AFU_N3000_DMA 2
> > +
> > +#define NLB_MODE_LPBK 0
> > +#define NLB_MODE_READ 1
> > +#define NLB_MODE_WRITE 2
> > +#define NLB_MODE_TRPUT 3
> > +
> > +#define NLB_VC_AUTO 0
> > +#define NLB_VC_VL0 1
> > +#define NLB_VC_VH0 2
> > +#define NLB_VC_VH1 3
> > +#define NLB_VC_RANDOM 4
> > +
> > +#define NLB_WRLINE_M 0
> > +#define NLB_WRLINE_I 1
> > +#define NLB_WRPUSH_I 2
> > +
> > +#define NLB_RDLINE_S 0
> > +#define NLB_RDLINE_I 1
> > +#define NLB_RDLINE_MIXED 2
> > +
> > +#define MIN_CACHE_LINES 1
> > +#define MAX_CACHE_LINES 1024
> > +
> > +#define MIN_DMA_BUF_SIZE 64
> > +#define MAX_DMA_BUF_SIZE (1023 * 1024)
> > +
> > +/**
> > + * NLB AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_nlb_cfg {
> > + uint32_t mode;
> > + uint32_t begin;
> > + uint32_t end;
> > + uint32_t multi_cl;
> > + uint32_t cont;
> > + uint32_t timeout;
> > + uint32_t cache_policy;
> > + uint32_t cache_hint;
> > + uint32_t read_vc;
> > + uint32_t write_vc;
> > + uint32_t wrfence_vc;
> > + uint32_t freq_mhz;
> > +};
> > +
> > +/**
> > + * DMA AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_dma_cfg {
> > + uint32_t index; /* index of DMA controller */
> > + uint32_t length; /* total length of data to DMA */
> > + uint32_t offset; /* address offset of target memory */
> > + uint32_t size; /* size of transfer buffer */
> > + uint32_t pattern; /* data pattern to fill in test buffer */
> > + uint32_t unaligned; /* use unaligned address or length in sweep test
> > */
> > + uint32_t verbose; /* enable verbose error information in test */
> > +};
> > +
> > +/**
> > + * N3000 AFU configuration data structure.
> > + */
> > +struct rte_pmd_afu_n3000_cfg {
> > + int type; /* RTE_PMD_AFU_N3000_NLB or
> > RTE_PMD_AFU_N3000_DMA */
> > + union {
> > + struct rte_pmd_afu_nlb_cfg nlb_cfg;
> > + struct rte_pmd_afu_dma_cfg dma_cfg;
> > + };
> > +};
> > +
> > +#ifdef __cplusplus
> > +}
> > +#endif
> > +
> > +#endif /* __RTE_PMD_AFU_H__ */
> > --
> > 1.8.3.1
>
> Reviewed-by: Rosen Xu <rosen.xu@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v7 3/5] raw/ifpga: add HE-LPBK AFU driver
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-09 7:37 ` [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
2022-06-09 7:37 ` [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
@ 2022-06-09 7:37 ` Wei Huang
2022-06-10 6:11 ` Zhang, Tianfei
2022-06-15 7:12 ` Xu, Rosen
2022-06-09 7:37 ` [PATCH v7 4/5] raw/ifpga: add HE-MEM " Wei Huang
` (2 subsequent siblings)
5 siblings, 2 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 7:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-LPBK and HE-MEM-LPBK are host exerciser modules in OFS FPGA,
HE-LPBK is used to test PCI bus and HE-MEM-LPBK is used to test
local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
v2: move source files to ifpga and rename, refine code
---
drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436 ++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++++++++++
drivers/raw/ifpga/meson.build | 2 +-
drivers/raw/ifpga/rte_pmd_afu.h | 14 ++
4 files changed, 577 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.c b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
new file mode 100644
index 0000000..8b2c85b
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
@@ -0,0 +1,436 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_lpbk.h"
+
+static int he_lpbk_afu_config(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lpbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lpbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lpbk_report(struct afu_rawdev *dev, uint32_t cl)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ struct he_lpbk_dsm_status *stat = NULL;
+ struct he_lpbk_status0 stat0;
+ struct he_lpbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ cfg = &priv->he_lpbk_cfg;
+ ctx = &priv->he_lpbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ IFPGA_RAWDEV_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ IFPGA_RAWDEV_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12"PRIu64
+ " %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lpbk_test(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ struct he_lpbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lpbk_cfg;
+ ctx = &priv->he_lpbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+
+ IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lpbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lpbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ IFPGA_RAWDEV_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lpbk_ctx_release(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lpbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lpbk_ctx_init(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lpbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr)
+ return -ENOMEM;
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dest;
+ }
+
+ ctx->status_ptr = (struct he_lpbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release_dest:
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+release_src:
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+release_dsm:
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ return ret;
+}
+
+static int he_lpbk_init(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lpbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lpbk_ctx_init(dev);
+}
+
+static int he_lpbk_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lpbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lpbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lpbk_cfg, cfg, sizeof(priv->he_lpbk_cfg));
+
+ return 0;
+}
+
+static int he_lpbk_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lpbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lpbk_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lpbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_ops he_lpbk_ops = {
+ .init = he_lpbk_init,
+ .config = he_lpbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lpbk_test,
+ .close = he_lpbk_close,
+ .dump = he_lpbk_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_lpbk_drv = {
+ .uuid = { HE_LPBK_UUID_L, HE_LPBK_UUID_H },
+ .ops = &he_lpbk_ops
+};
+
+AFU_PMD_REGISTER(he_lpbk_drv);
+
+struct afu_rawdev_drv he_mem_lpbk_drv = {
+ .uuid = { HE_MEM_LPBK_UUID_L, HE_MEM_LPBK_UUID_H },
+ .ops = &he_lpbk_ops
+};
+
+AFU_PMD_REGISTER(he_mem_lpbk_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.h b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
new file mode 100644
index 0000000..5ad6aa8
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_LPBK_H_
+#define _AFU_PMD_HE_LPBK_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LPBK_UUID_L 0xb94b12284c31e02b
+#define HE_LPBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LPBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LPBK_UUID_H 0x8568ab4e6ba54616
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lpbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lpbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lpbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lpbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lpbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lpbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lpbk_dsm_status *status_ptr;
+};
+
+struct he_lpbk_priv {
+ struct rte_pmd_afu_he_lpbk_cfg he_lpbk_cfg;
+ struct he_lpbk_ctx he_lpbk_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_LPBK_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index 2294ab5..629ff8a 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index f14a053..19b3902 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
};
};
+/**
+ * HE-LPBK & HE-MEM-LPBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lpbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 3/5] raw/ifpga: add HE-LPBK AFU driver
2022-06-09 7:37 ` [PATCH v7 3/5] raw/ifpga: add HE-LPBK " Wei Huang
@ 2022-06-10 6:11 ` Zhang, Tianfei
2022-06-15 7:12 ` Xu, Rosen
1 sibling, 0 replies; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-10 6:11 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 9, 2022 3:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 3/5] raw/ifpga: add HE-LPBK AFU driver
>
> HE-LPBK and HE-MEM-LPBK are host exerciser modules in OFS FPGA, HE-LPBK is
> used to test PCI bus and HE-MEM-LPBK is used to test local memory.
> This driver initialize the modules and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: move source files to ifpga and rename, refine code
> ---
> drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436
> ++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++++++++++
> drivers/raw/ifpga/meson.build | 2 +-
> drivers/raw/ifpga/rte_pmd_afu.h | 14 ++
> 4 files changed, 577 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/ifpga/afu_pmd_he_lpbk.c
> create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.c
> b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
> new file mode 100644
> index 0000000..8b2c85b
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
> @@ -0,0 +1,436 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_pmd_core.h"
> +#include "afu_pmd_he_lpbk.h"
> +
> +static int he_lpbk_afu_config(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> + struct he_lpbk_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lpbk_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + v.mode = cfg->mode;
> + v.trput_interleave = cfg->trput_interleave;
> + if (cfg->multi_cl == 4)
> + v.multicl_len = 2;
> + else
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->he_lpbk_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void he_lpbk_report(struct afu_rawdev *dev, uint32_t cl) {
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> + struct he_lpbk_dsm_status *stat = NULL;
> + struct he_lpbk_status0 stat0;
> + struct he_lpbk_status1 stat1;
> + uint64_t swtest_msg = 0;
> + uint64_t ticks = 0;
> + uint64_t info = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + cfg = &priv->he_lpbk_cfg;
> + ctx = &priv->he_lpbk_ctx;
> +
> + stat = ctx->status_ptr;
> +
> + swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
> + stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
> + stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0) {
> + info = rte_read64(ctx->addr + CSR_HE_INFO0);
> + IFPGA_RAWDEV_PMD_INFO("API version: %"PRIx64, info >>
> 16);
> + cfg->freq_mhz = info & 0xffff;
> + if (cfg->freq_mhz == 0) {
> + IFPGA_RAWDEV_PMD_INFO("Frequency of AFU clock is
> unknown."
> + " Assuming 350 MHz.");
> + cfg->freq_mhz = 350;
> + }
> + }
> +
> + num = (double)stat0.num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat0.num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
> + "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
> + cfg->freq_mhz);
> + printf("%10u %10u %10u %10u %10u %12"PRIu64
> + " %7.3f GB/s %7.3f GB/s\n",
> + cl, stat0.num_reads, stat0.num_writes,
> + stat1.num_pend_reads, stat1.num_pend_writes,
> + ticks, rd_bw / 1e9, wr_bw / 1e9);
> + printf("Test Message: 0x%"PRIx64"\n", swtest_msg); }
> +
> +static int he_lpbk_test(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> + struct he_lpbk_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lpbk_cfg;
> + ctx = &priv->he_lpbk_ctx;
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + /* initialize DMA addresses */
> + IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
> +
> + IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
> +
> + IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx-
> >dsm_iova);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr +
> CSR_AFU_DSM_BASEL);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
> + ctx->addr + CSR_AFU_DSM_BASEH);
> +
> + ret = he_lpbk_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + he_lpbk_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + if (cfg->mode == NLB_MODE_LPBK) {
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + IFPGA_RAWDEV_PMD_ERR("Data
> mismatch @ %u", i);
> + break;
> + }
> + }
> + }
> + }
> +
> +end:
> + return 0;
> +}
> +
> +static int he_lpbk_ctx_release(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lpbk_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lpbk_ctx_init(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lpbk_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr)
> + return -ENOMEM;
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dest;
> + }
> +
> + ctx->status_ptr = (struct he_lpbk_dsm_status *)ctx->dsm_ptr;
> + return 0;
> +
> +release_dest:
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +release_src:
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +release_dsm:
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + return ret;
> +}
> +
> +static int he_lpbk_init(struct afu_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct he_lpbk_priv), 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return he_lpbk_ctx_init(dev);
> +}
> +
> +static int he_lpbk_config(struct afu_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_lpbk_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_lpbk_cfg *)config;
> + if (cfg->mode > NLB_MODE_TRPUT)
> + return -EINVAL;
> + if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
> + (cfg->multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin >
> MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_lpbk_cfg, cfg, sizeof(priv->he_lpbk_cfg));
> +
> + return 0;
> +}
> +
> +static int he_lpbk_close(struct afu_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + he_lpbk_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lpbk_dump(struct afu_rawdev *dev, FILE *f) {
> + struct he_lpbk_priv *priv = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_lpbk_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> +
> + return 0;
> +}
> +
> +static struct afu_ops he_lpbk_ops = {
> + .init = he_lpbk_init,
> + .config = he_lpbk_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_lpbk_test,
> + .close = he_lpbk_close,
> + .dump = he_lpbk_dump,
> + .reset = NULL
> +};
> +
> +struct afu_rawdev_drv he_lpbk_drv = {
> + .uuid = { HE_LPBK_UUID_L, HE_LPBK_UUID_H },
> + .ops = &he_lpbk_ops
> +};
> +
> +AFU_PMD_REGISTER(he_lpbk_drv);
> +
> +struct afu_rawdev_drv he_mem_lpbk_drv = {
> + .uuid = { HE_MEM_LPBK_UUID_L, HE_MEM_LPBK_UUID_H },
> + .ops = &he_lpbk_ops
> +};
> +
> +AFU_PMD_REGISTER(he_mem_lpbk_drv);
> diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.h
> b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
> new file mode 100644
> index 0000000..5ad6aa8
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
> @@ -0,0 +1,126 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _AFU_PMD_HE_LPBK_H_
> +#define _AFU_PMD_HE_LPBK_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "afu_pmd_core.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_LPBK_UUID_L 0xb94b12284c31e02b
> +#define HE_LPBK_UUID_H 0x56e203e9864f49a7
> +#define HE_MEM_LPBK_UUID_L 0xbb652a578330a8eb #define
> +HE_MEM_LPBK_UUID_H 0x8568ab4e6ba54616
> +
> +/* HE-LBK & HE-MEM-LBK registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct he_lpbk_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct he_lpbk_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t rsvd1:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd2:13;
> + uint32_t trput_interleave:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t rsvd3:2;
> + };
> + };
> +};
> +
> +struct he_lpbk_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct he_lpbk_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct he_lpbk_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +struct he_lpbk_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct he_lpbk_dsm_status *status_ptr; };
> +
> +struct he_lpbk_priv {
> + struct rte_pmd_afu_he_lpbk_cfg he_lpbk_cfg;
> + struct he_lpbk_ctx he_lpbk_ctx;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _AFU_PMD_HE_LPBK_H_ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index 2294ab5..629ff8a 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> - 'afu_pmd_n3000.c')
> + 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
>
> includes += include_directories('base') includes +=
> include_directories('../../net/ipn3ke')
> diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
> index f14a053..19b3902 100644
> --- a/drivers/raw/ifpga/rte_pmd_afu.h
> +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> @@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
> };
> };
>
> +/**
> + * HE-LPBK & HE-MEM-LPBK AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_lpbk_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t trput_interleave;
> + uint32_t freq_mhz;
> +};
> +
> #ifdef __cplusplus
> }
> #endif
> --
It looks good for me, you can add:
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 3/5] raw/ifpga: add HE-LPBK AFU driver
2022-06-09 7:37 ` [PATCH v7 3/5] raw/ifpga: add HE-LPBK " Wei Huang
2022-06-10 6:11 ` Zhang, Tianfei
@ 2022-06-15 7:12 ` Xu, Rosen
1 sibling, 0 replies; 57+ messages in thread
From: Xu, Rosen @ 2022-06-15 7:12 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
Hi Wei,
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 09, 2022 15:37
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 3/5] raw/ifpga: add HE-LPBK AFU driver
>
> HE-LPBK and HE-MEM-LPBK are host exerciser modules in OFS FPGA, HE-
> LPBK is used to test PCI bus and HE-MEM-LPBK is used to test local memory.
> This driver initialize the modules and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: move source files to ifpga and rename, refine code
> ---
> drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436
> ++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++++++++++
> drivers/raw/ifpga/meson.build | 2 +-
> drivers/raw/ifpga/rte_pmd_afu.h | 14 ++
> 4 files changed, 577 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/ifpga/afu_pmd_he_lpbk.c
> create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.c
> b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
> new file mode 100644
> index 0000000..8b2c85b
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
> @@ -0,0 +1,436 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_pmd_core.h"
> +#include "afu_pmd_he_lpbk.h"
> +
> +static int he_lpbk_afu_config(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> + struct he_lpbk_csr_cfg v;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lpbk_cfg;
> +
> + v.csr = 0;
> +
> + if (cfg->cont)
> + v.cont = 1;
> +
> + v.mode = cfg->mode;
> + v.trput_interleave = cfg->trput_interleave;
> + if (cfg->multi_cl == 4)
> + v.multicl_len = 2;
> + else
> + v.multicl_len = cfg->multi_cl - 1;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
> + rte_write32(v.csr, priv->he_lpbk_ctx.addr + CSR_CFG);
> +
> + return 0;
> +}
> +
> +static void he_lpbk_report(struct afu_rawdev *dev, uint32_t cl) {
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> + struct he_lpbk_dsm_status *stat = NULL;
> + struct he_lpbk_status0 stat0;
> + struct he_lpbk_status1 stat1;
> + uint64_t swtest_msg = 0;
> + uint64_t ticks = 0;
> + uint64_t info = 0;
> + double num, rd_bw, wr_bw;
> +
> + if (!dev || !dev->priv)
> + return;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + cfg = &priv->he_lpbk_cfg;
> + ctx = &priv->he_lpbk_ctx;
> +
> + stat = ctx->status_ptr;
> +
> + swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
> + stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
> + stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
> +
> + if (cfg->cont)
> + ticks = stat->num_clocks - stat->start_overhead;
> + else
> + ticks = stat->num_clocks -
> + (stat->start_overhead + stat->end_overhead);
> +
> + if (cfg->freq_mhz == 0) {
> + info = rte_read64(ctx->addr + CSR_HE_INFO0);
> + IFPGA_RAWDEV_PMD_INFO("API version: %"PRIx64, info >>
> 16);
> + cfg->freq_mhz = info & 0xffff;
> + if (cfg->freq_mhz == 0) {
> + IFPGA_RAWDEV_PMD_INFO("Frequency of AFU
> clock is unknown."
> + " Assuming 350 MHz.");
> + cfg->freq_mhz = 350;
> + }
> + }
> +
> + num = (double)stat0.num_reads;
> + rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> + num = (double)stat0.num_writes;
> + wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
> +
> + printf("Cachelines Read_Count Write_Count Pend_Read
> Pend_Write "
> + "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
> + cfg->freq_mhz);
> + printf("%10u %10u %10u %10u %10u %12"PRIu64
> + " %7.3f GB/s %7.3f GB/s\n",
> + cl, stat0.num_reads, stat0.num_writes,
> + stat1.num_pend_reads, stat1.num_pend_writes,
> + ticks, rd_bw / 1e9, wr_bw / 1e9);
> + printf("Test Message: 0x%"PRIx64"\n", swtest_msg); }
> +
> +static int he_lpbk_test(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> + struct he_lpbk_csr_ctl ctl;
> + uint32_t *ptr = NULL;
> + uint32_t i, j, cl, val = 0;
> + uint64_t sval = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_lpbk_cfg;
> + ctx = &priv->he_lpbk_ctx;
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + /* initialize DMA addresses */
> + IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx-
> >src_iova);
> + rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr +
> CSR_SRC_ADDR);
> +
> + IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx-
> >dest_iova);
> + rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr +
> CSR_DST_ADDR);
> +
> + IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx-
> >dsm_iova);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr +
> CSR_AFU_DSM_BASEL);
> + rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
> + ctx->addr + CSR_AFU_DSM_BASEH);
> +
> + ret = he_lpbk_afu_config(dev);
> + if (ret)
> + return ret;
> +
> + /* initialize src data */
> + ptr = (uint32_t *)ctx->src_ptr;
> + j = CLS_TO_SIZE(cfg->end) >> 2;
> + for (i = 0; i < j; i++)
> + *ptr++ = i;
> +
> + /* start test */
> + for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
> + memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
> + memset(ctx->dsm_ptr, 0, DSM_SIZE);
> +
> + ctl.csr = 0;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + rte_delay_us(1000);
> + ctl.reset = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
> +
> + ctl.start = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> +
> + if (cfg->cont) {
> + rte_delay_ms(cfg->timeout * 1000);
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + } else {
> + ret = dsm_poll_timeout(&ctx->status_ptr-
> >test_complete,
> + val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
> + DSM_TIMEOUT);
> + if (ret) {
> + printf("DSM poll timeout\n");
> + goto end;
> + }
> + ctl.force_completion = 1;
> + rte_write32(ctl.csr, ctx->addr + CSR_CTL);
> + }
> +
> + he_lpbk_report(dev, cl);
> +
> + i = 0;
> + while (i++ < 100) {
> + sval = rte_read64(ctx->addr + CSR_STATUS1);
> + if (sval == 0)
> + break;
> + rte_delay_us(1000);
> + }
> +
> + if (cfg->mode == NLB_MODE_LPBK) {
> + ptr = (uint32_t *)ctx->dest_ptr;
> + j = CLS_TO_SIZE(cl) >> 2;
> + for (i = 0; i < j; i++) {
> + if (*ptr++ != i) {
> + IFPGA_RAWDEV_PMD_ERR("Data
> mismatch @ %u", i);
> + break;
> + }
> + }
> + }
> + }
> +
> +end:
> + return 0;
> +}
> +
> +static int he_lpbk_ctx_release(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lpbk_ctx;
> +
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + ctx->status_ptr = NULL;
> +
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lpbk_ctx_init(struct afu_rawdev *dev) {
> + struct he_lpbk_priv *priv = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + ctx = &priv->he_lpbk_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE,
> TEST_MEM_ALIGN);
> + if (!ctx->dsm_ptr)
> + return -ENOMEM;
> + ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
> + if (ctx->dsm_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> +
> + ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->src_ptr) {
> + ret = -ENOMEM;
> + goto release_dsm;
> + }
> + ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
> + if (ctx->src_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> +
> + ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
> + TEST_MEM_ALIGN);
> + if (!ctx->dest_ptr) {
> + ret = -ENOMEM;
> + goto release_src;
> + }
> + ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
> + if (ctx->dest_iova == RTE_BAD_IOVA) {
> + ret = -ENOMEM;
> + goto release_dest;
> + }
> +
> + ctx->status_ptr = (struct he_lpbk_dsm_status *)ctx->dsm_ptr;
> + return 0;
> +
> +release_dest:
> + rte_free(ctx->dest_ptr);
> + ctx->dest_ptr = NULL;
> +release_src:
> + rte_free(ctx->src_ptr);
> + ctx->src_ptr = NULL;
> +release_dsm:
> + rte_free(ctx->dsm_ptr);
> + ctx->dsm_ptr = NULL;
> + return ret;
> +}
> +
> +static int he_lpbk_init(struct afu_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + if (!dev->priv) {
> + dev->priv = rte_zmalloc(NULL, sizeof(struct he_lpbk_priv), 0);
> + if (!dev->priv)
> + return -ENOMEM;
> + }
> +
> + return he_lpbk_ctx_init(dev);
> +}
> +
> +static int he_lpbk_config(struct afu_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_lpbk_priv *priv = NULL;
> + struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_lpbk_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_lpbk_cfg *)config;
> + if (cfg->mode > NLB_MODE_TRPUT)
> + return -EINVAL;
> + if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
> + (cfg->multi_cl != 4))
> + return -EINVAL;
> + if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin >
> MAX_CACHE_LINES))
> + return -EINVAL;
> + if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_lpbk_cfg, cfg, sizeof(priv->he_lpbk_cfg));
> +
> + return 0;
> +}
> +
> +static int he_lpbk_close(struct afu_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + he_lpbk_ctx_release(dev);
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_lpbk_dump(struct afu_rawdev *dev, FILE *f) {
> + struct he_lpbk_priv *priv = NULL;
> + struct he_lpbk_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_lpbk_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_lpbk_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> + fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
> + fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
> + fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
> + fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
> + fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
> + fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
> + fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
> +
> + return 0;
> +}
> +
> +static struct afu_ops he_lpbk_ops = {
> + .init = he_lpbk_init,
> + .config = he_lpbk_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_lpbk_test,
> + .close = he_lpbk_close,
> + .dump = he_lpbk_dump,
> + .reset = NULL
> +};
> +
> +struct afu_rawdev_drv he_lpbk_drv = {
> + .uuid = { HE_LPBK_UUID_L, HE_LPBK_UUID_H },
> + .ops = &he_lpbk_ops
> +};
> +
> +AFU_PMD_REGISTER(he_lpbk_drv);
> +
> +struct afu_rawdev_drv he_mem_lpbk_drv = {
> + .uuid = { HE_MEM_LPBK_UUID_L, HE_MEM_LPBK_UUID_H },
> + .ops = &he_lpbk_ops
> +};
> +
> +AFU_PMD_REGISTER(he_mem_lpbk_drv);
> diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.h
> b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
> new file mode 100644
> index 0000000..5ad6aa8
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
> @@ -0,0 +1,126 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _AFU_PMD_HE_LPBK_H_
> +#define _AFU_PMD_HE_LPBK_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "afu_pmd_core.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_LPBK_UUID_L 0xb94b12284c31e02b
> +#define HE_LPBK_UUID_H 0x56e203e9864f49a7
> +#define HE_MEM_LPBK_UUID_L 0xbb652a578330a8eb #define
> +HE_MEM_LPBK_UUID_H 0x8568ab4e6ba54616
> +
> +/* HE-LBK & HE-MEM-LBK registers definition */
> +#define CSR_SCRATCHPAD0 0x100
> +#define CSR_SCRATCHPAD1 0x108
> +#define CSR_AFU_DSM_BASEL 0x110
> +#define CSR_AFU_DSM_BASEH 0x114
> +#define CSR_SRC_ADDR 0x120
> +#define CSR_DST_ADDR 0x128
> +#define CSR_NUM_LINES 0x130
> +#define CSR_CTL 0x138
> +#define CSR_CFG 0x140
> +#define CSR_INACT_THRESH 0x148
> +#define CSR_INTERRUPT0 0x150
> +#define CSR_SWTEST_MSG 0x158
> +#define CSR_STATUS0 0x160
> +#define CSR_STATUS1 0x168
> +#define CSR_ERROR 0x170
> +#define CSR_STRIDE 0x178
> +#define CSR_HE_INFO0 0x180
> +
> +#define DSM_SIZE 0x200000
> +#define DSM_POLL_INTERVAL 5 /* ms */
> +#define DSM_TIMEOUT 1000 /* ms */
> +
> +#define NLB_BUF_SIZE 0x400000
> +#define TEST_MEM_ALIGN 1024
> +
> +struct he_lpbk_csr_ctl {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t reset:1;
> + uint32_t start:1;
> + uint32_t force_completion:1;
> + uint32_t reserved:29;
> + };
> + };
> +};
> +
> +struct he_lpbk_csr_cfg {
> + union {
> + uint32_t csr;
> + struct {
> + uint32_t rsvd1:1;
> + uint32_t cont:1;
> + uint32_t mode:3;
> + uint32_t multicl_len:2;
> + uint32_t rsvd2:13;
> + uint32_t trput_interleave:3;
> + uint32_t test_cfg:5;
> + uint32_t interrupt_on_error:1;
> + uint32_t interrupt_testmode:1;
> + uint32_t rsvd3:2;
> + };
> + };
> +};
> +
> +struct he_lpbk_status0 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_writes;
> + uint32_t num_reads;
> + };
> + };
> +};
> +
> +struct he_lpbk_status1 {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t num_pend_writes;
> + uint32_t num_pend_reads;
> + };
> + };
> +};
> +
> +struct he_lpbk_dsm_status {
> + uint32_t test_complete;
> + uint32_t test_error;
> + uint64_t num_clocks;
> + uint32_t num_reads;
> + uint32_t num_writes;
> + uint32_t start_overhead;
> + uint32_t end_overhead;
> +};
> +
> +struct he_lpbk_ctx {
> + uint8_t *addr;
> + uint8_t *dsm_ptr;
> + uint64_t dsm_iova;
> + uint8_t *src_ptr;
> + uint64_t src_iova;
> + uint8_t *dest_ptr;
> + uint64_t dest_iova;
> + struct he_lpbk_dsm_status *status_ptr; };
> +
> +struct he_lpbk_priv {
> + struct rte_pmd_afu_he_lpbk_cfg he_lpbk_cfg;
> + struct he_lpbk_ctx he_lpbk_ctx;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _AFU_PMD_HE_LPBK_H_ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index 2294ab5..629ff8a 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> - 'afu_pmd_n3000.c')
> + 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
>
> includes += include_directories('base') includes +=
> include_directories('../../net/ipn3ke')
> diff --git a/drivers/raw/ifpga/rte_pmd_afu.h
> b/drivers/raw/ifpga/rte_pmd_afu.h index f14a053..19b3902 100644
> --- a/drivers/raw/ifpga/rte_pmd_afu.h
> +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> @@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
> };
> };
>
> +/**
> + * HE-LPBK & HE-MEM-LPBK AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_lpbk_cfg {
> + uint32_t mode;
> + uint32_t begin;
> + uint32_t end;
> + uint32_t multi_cl;
> + uint32_t cont;
> + uint32_t timeout;
> + uint32_t trput_interleave;
> + uint32_t freq_mhz;
> +};
> +
> #ifdef __cplusplus
> }
> #endif
> --
> 1.8.3.1
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v7 4/5] raw/ifpga: add HE-MEM AFU driver
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (2 preceding siblings ...)
2022-06-09 7:37 ` [PATCH v7 3/5] raw/ifpga: add HE-LPBK " Wei Huang
@ 2022-06-09 7:37 ` Wei Huang
2022-06-15 7:13 ` Xu, Rosen
2022-06-09 7:37 ` [PATCH v7 5/5] raw/ifpga: add HE-HSSI " Wei Huang
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
5 siblings, 1 reply; 57+ messages in thread
From: Wei Huang @ 2022-06-09 7:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-MEM is one of the host exerciser modules in OFS FPGA,
which is used to test local memory with built-in traffic
generator.
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
---
v2: move source files to ifpga and rename
---
drivers/raw/ifpga/afu_pmd_he_mem.c | 183 +++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_mem.h | 46 ++++++++++
drivers/raw/ifpga/meson.build | 2 +-
drivers/raw/ifpga/rte_pmd_afu.h | 7 ++
4 files changed, 237 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.c b/drivers/raw/ifpga/afu_pmd_he_mem.c
new file mode 100644
index 0000000..0f57a03
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_mem.c
@@ -0,0 +1,183 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_mem.h"
+
+static int he_mem_tg_test(struct afu_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ IFPGA_RAWDEV_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ IFPGA_RAWDEV_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ IFPGA_RAWDEV_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ IFPGA_RAWDEV_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
+
+AFU_PMD_REGISTER(he_mem_tg_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.h b/drivers/raw/ifpga/afu_pmd_he_mem.h
new file mode 100644
index 0000000..5549687
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_mem.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_MEM_H_
+#define _AFU_PMD_HE_MEM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_MEM_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index 629ff8a..dc6941d 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index 19b3902..213e854 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -104,6 +104,13 @@ struct rte_pmd_afu_he_lpbk_cfg {
uint32_t freq_mhz;
};
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 4/5] raw/ifpga: add HE-MEM AFU driver
2022-06-09 7:37 ` [PATCH v7 4/5] raw/ifpga: add HE-MEM " Wei Huang
@ 2022-06-15 7:13 ` Xu, Rosen
0 siblings, 0 replies; 57+ messages in thread
From: Xu, Rosen @ 2022-06-15 7:13 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
Hi Wei,
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 09, 2022 15:37
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 4/5] raw/ifpga: add HE-MEM AFU driver
>
> HE-MEM is one of the host exerciser modules in OFS FPGA, which is used to
> test local memory with built-in traffic generator.
> This driver initialize the module and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
> ---
> v2: move source files to ifpga and rename
> ---
> drivers/raw/ifpga/afu_pmd_he_mem.c | 183
> +++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_he_mem.h | 46 ++++++++++
> drivers/raw/ifpga/meson.build | 2 +-
> drivers/raw/ifpga/rte_pmd_afu.h | 7 ++
> 4 files changed, 237 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/ifpga/afu_pmd_he_mem.c
> create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.c
> b/drivers/raw/ifpga/afu_pmd_he_mem.c
> new file mode 100644
> index 0000000..0f57a03
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_mem.c
> @@ -0,0 +1,183 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_pmd_core.h"
> +#include "afu_pmd_he_mem.h"
> +
> +static int he_mem_tg_test(struct afu_rawdev *dev) {
> + struct he_mem_tg_priv *priv = NULL;
> + struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> + uint64_t value = 0x12345678;
> + uint64_t cap = 0;
> + uint64_t channel_mask = 0;
> + int i, t = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_mem_tg_cfg;
> + ctx = &priv->he_mem_tg_ctx;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("Channel mask: 0x%x", cfg-
> >channel_mask);
> +
> + rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
> + cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
> + IFPGA_RAWDEV_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
> + if (cap != value) {
> + IFPGA_RAWDEV_PMD_ERR("Test scratchpad register failed");
> + return -EIO;
> + }
> +
> + cap = rte_read64(ctx->addr + MEM_TG_CTRL);
> + IFPGA_RAWDEV_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
> +
> + channel_mask = cfg->channel_mask & cap;
> + /* start traffic generators */
> + rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
> +
> + /* check test status */
> + while (t < MEM_TG_TIMEOUT_MS) {
> + value = rte_read64(ctx->addr + MEM_TG_STAT);
> + for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
> + if (channel_mask & (1 << i)) {
> + if (TGACTIVE(value, i))
> + continue;
> + printf("TG channel %d test %s\n", i,
> + TGPASS(value, i) ? "pass" :
> + TGTIMEOUT(value, i) ? "timeout" :
> + TGFAIL(value, i) ? "fail" : "error");
> + channel_mask &= ~(1 << i);
> + }
> + }
> + if (!channel_mask)
> + break;
> + rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
> + t += MEM_TG_POLL_INTERVAL_MS;
> + }
> +
> + if (channel_mask) {
> + IFPGA_RAWDEV_PMD_ERR("Timeout 0x%04lx", (unsigned
> long)value);
> + return channel_mask;
> + }
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_init(struct afu_rawdev *dev) {
> + struct he_mem_tg_priv *priv = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv) {
> + priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
> + if (!priv)
> + return -ENOMEM;
> + dev->priv = priv;
> + }
> +
> + ctx = &priv->he_mem_tg_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_config(struct afu_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_mem_tg_priv *priv = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv-
> >he_mem_tg_cfg));
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_close(struct afu_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_mem_tg_dump(struct afu_rawdev *dev, FILE *f) {
> + struct he_mem_tg_priv *priv = NULL;
> + struct he_mem_tg_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_mem_tg_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_mem_tg_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> +
> + return 0;
> +}
> +
> +static struct afu_ops he_mem_tg_ops = {
> + .init = he_mem_tg_init,
> + .config = he_mem_tg_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_mem_tg_test,
> + .close = he_mem_tg_close,
> + .dump = he_mem_tg_dump,
> + .reset = NULL
> +};
> +
> +struct afu_rawdev_drv he_mem_tg_drv = {
> + .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
> + .ops = &he_mem_tg_ops
> +};
> +
> +AFU_PMD_REGISTER(he_mem_tg_drv);
> diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.h
> b/drivers/raw/ifpga/afu_pmd_he_mem.h
> new file mode 100644
> index 0000000..5549687
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_mem.h
> @@ -0,0 +1,46 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _AFU_PMD_HE_MEM_H_
> +#define _AFU_PMD_HE_MEM_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "afu_pmd_core.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb #define
> HE_MEM_TG_UUID_H
> +0x4dadea342c7848cb
> +
> +#define NUM_MEM_TG_CHANNELS 4
> +#define MEM_TG_TIMEOUT_MS 5000
> +#define MEM_TG_POLL_INTERVAL_MS 10
> +
> +/* MEM-TG registers definition */
> +#define MEM_TG_SCRATCHPAD 0x28
> +#define MEM_TG_CTRL 0x30
> +#define TGCONTROL(n) (1 << (n))
> +#define MEM_TG_STAT 0x38
> +#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
> +#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
> +#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
> +#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
> +#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
> +
> +struct he_mem_tg_ctx {
> + uint8_t *addr;
> +};
> +
> +struct he_mem_tg_priv {
> + struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
> + struct he_mem_tg_ctx he_mem_tg_ctx;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _AFU_PMD_HE_MEM_H_ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index 629ff8a..dc6941d 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> - 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
> + 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
>
> includes += include_directories('base') includes +=
> include_directories('../../net/ipn3ke')
> diff --git a/drivers/raw/ifpga/rte_pmd_afu.h
> b/drivers/raw/ifpga/rte_pmd_afu.h index 19b3902..213e854 100644
> --- a/drivers/raw/ifpga/rte_pmd_afu.h
> +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> @@ -104,6 +104,13 @@ struct rte_pmd_afu_he_lpbk_cfg {
> uint32_t freq_mhz;
> };
>
> +/**
> + * HE-MEM-TG AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_mem_tg_cfg {
> + uint32_t channel_mask; /* mask of traffic generator channel */
> +};
> +
> #ifdef __cplusplus
> }
> #endif
> --
> 1.8.3.1
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v7 5/5] raw/ifpga: add HE-HSSI AFU driver
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (3 preceding siblings ...)
2022-06-09 7:37 ` [PATCH v7 4/5] raw/ifpga: add HE-MEM " Wei Huang
@ 2022-06-09 7:37 ` Wei Huang
2022-06-10 6:12 ` Zhang, Tianfei
2022-06-15 7:14 ` Xu, Rosen
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
5 siblings, 2 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-09 7:37 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-HSSI is one of the host exerciser modules in OFS FPGA,
which is used to test HSSI (High Speed Serial Interface).
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
---
v2: move source files to ifpga and rename, refine code
---
drivers/raw/ifpga/afu_pmd_he_hssi.c | 371 ++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_hssi.h | 109 +++++++++++
drivers/raw/ifpga/meson.build | 3 +-
drivers/raw/ifpga/rte_pmd_afu.h | 18 ++
4 files changed, 500 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.c b/drivers/raw/ifpga/afu_pmd_he_hssi.c
new file mode 100644
index 0000000..102de50
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_hssi.c
@@ -0,0 +1,371 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ IFPGA_RAWDEV_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < TG_NUM_RND_SEEDS; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
+
+AFU_PMD_REGISTER(he_hssi_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.h b/drivers/raw/ifpga/afu_pmd_he_hssi.h
new file mode 100644
index 0000000..38b433c
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_hssi.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_HSSI_H_
+#define _AFU_PMD_HE_HSSI_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_NUM_RND_SEEDS 3
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_HSSI_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index dc6941d..cc30dc8 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,8 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c',
+ 'afu_pmd_he_hssi.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index 213e854..b1cebbe 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -111,6 +111,24 @@ struct rte_pmd_afu_he_mem_tg_cfg {
uint32_t channel_mask; /* mask of traffic generator channel */
};
+#define NUM_RND_SEEDS 3
+
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[NUM_RND_SEEDS];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 5/5] raw/ifpga: add HE-HSSI AFU driver
2022-06-09 7:37 ` [PATCH v7 5/5] raw/ifpga: add HE-HSSI " Wei Huang
@ 2022-06-10 6:12 ` Zhang, Tianfei
2022-06-15 7:14 ` Xu, Rosen
1 sibling, 0 replies; 57+ messages in thread
From: Zhang, Tianfei @ 2022-06-10 6:12 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Xu, Rosen, Zhang, Qi Z
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 9, 2022 3:37 PM
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 5/5] raw/ifpga: add HE-HSSI AFU driver
>
> HE-HSSI is one of the host exerciser modules in OFS FPGA, which is used to test
> HSSI (High Speed Serial Interface).
> This driver initialize the module and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: move source files to ifpga and rename, refine code
> ---
> drivers/raw/ifpga/afu_pmd_he_hssi.c | 371
> ++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_he_hssi.h | 109 +++++++++++
> drivers/raw/ifpga/meson.build | 3 +-
> drivers/raw/ifpga/rte_pmd_afu.h | 18 ++
> 4 files changed, 500 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/ifpga/afu_pmd_he_hssi.c
> create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.c
> b/drivers/raw/ifpga/afu_pmd_he_hssi.c
> new file mode 100644
> index 0000000..102de50
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_hssi.c
> @@ -0,0 +1,371 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_pmd_core.h"
> +#include "afu_pmd_he_hssi.h"
> +
> +static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("Indirect write 0x%x, value 0x%08x",
> addr,
> +value);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + data.write_data = value;
> + rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
> +
> + cmd.csr = 0;
> + cmd.write_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + return 0;
> +}
> +
> +static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t *value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + cmd.csr = 0;
> + cmd.read_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans) {
> + data.csr = rte_read64(ctx->addr +
> TRAFFIC_CTRL_DATA);
> + *value = data.read_data;
> + break;
> + }
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("Indirect read 0x%x, value 0x%08x",
> addr, *value);
> + return 0;
> +}
> +
> +static void he_hssi_report(struct he_hssi_ctx *ctx) {
> + uint32_t val = 0;
> + uint64_t v64 = 0;
> + int ret = 0;
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
> + if (ret)
> + return;
> + printf("Number of good packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
> + if (ret)
> + return;
> + printf("Number of bad packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
> + if (ret)
> + return;
> + v64 = val;
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
> + if (ret)
> + return;
> + v64 = (v64 << 32) | val;
> + printf("Number of bytes received: %"PRIu64"\n", v64);
> +
> + ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
> + if (ret)
> + return;
> + if (val & ERR_VALID) {
> + printf("AVST rx error:");
> + if (val & OVERFLOW_ERR)
> + printf(" overflow");
> + if (val & LENGTH_ERR)
> + printf(" length");
> + if (val & OVERSIZE_ERR)
> + printf(" oversize");
> + if (val & UNDERSIZE_ERR)
> + printf(" undersize");
> + if (val & MAC_CRC_ERR)
> + printf(" crc");
> + if (val & PHY_ERR)
> + printf(" phy");
> + printf("\n");
> + }
> +
> + ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
> + if (ret)
> + return;
> + if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
> + printf("FIFO status:");
> + if (val & ALMOST_EMPTY)
> + printf(" almost empty");
> + if (val & ALMOST_FULL)
> + printf(" almost full");
> + printf("\n");
> + }
> +}
> +
> +static int he_hssi_test(struct afu_rawdev *dev) {
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> + struct traffic_ctrl_ch_sel sel;
> + uint32_t val = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_hssi_cfg;
> + ctx = &priv->he_hssi_ctx;
> +
> + ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
> + if (ret)
> + return ret;
> +
> + sel.channel_sel = cfg->port;
> + rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
> +
> + if (cfg->he_loopback >= 0) {
> + val = cfg->he_loopback ? 1 : 0;
> + IFPGA_RAWDEV_PMD_INFO("%s HE loopback on port %u",
> + val ? "Enable" : "Disable", cfg->port);
> + return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
> + if (ret)
> + return ret;
> +
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
> + if (ret)
> + return ret;
> +
> + val = cfg->src_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->src_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->dest_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->dest_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_length ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_payload ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
> + if (ret)
> + return ret;
> +
> + for (i = 0; i < TG_NUM_RND_SEEDS; i++) {
> + ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
> + cfg->rnd_seed[i]);
> + if (ret)
> + return ret;
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
> + if (ret)
> + return ret;
> +
> + while (i++ < cfg->timeout) {
> + ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
> + if (ret)
> + break;
> + if (val == cfg->num_packets)
> + break;
> + sleep(1);
> + }
> +
> + he_hssi_report(ctx);
> +
> + return ret;
> +}
> +
> +static int he_hssi_init(struct afu_rawdev *dev) {
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv) {
> + priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
> + if (!priv)
> + return -ENOMEM;
> + dev->priv = priv;
> + }
> +
> + ctx = &priv->he_hssi_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + return 0;
> +}
> +
> +static int he_hssi_config(struct afu_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
> + if (cfg->port >= NUM_HE_HSSI_PORTS)
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
> +
> + return 0;
> +}
> +
> +static int he_hssi_close(struct afu_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_hssi_dump(struct afu_rawdev *dev, FILE *f) {
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_hssi_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> +
> + return 0;
> +}
> +
> +static struct afu_ops he_hssi_ops = {
> + .init = he_hssi_init,
> + .config = he_hssi_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_hssi_test,
> + .close = he_hssi_close,
> + .dump = he_hssi_dump,
> + .reset = NULL
> +};
> +
> +struct afu_rawdev_drv he_hssi_drv = {
> + .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> + .ops = &he_hssi_ops
> +};
> +
> +AFU_PMD_REGISTER(he_hssi_drv);
> diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.h
> b/drivers/raw/ifpga/afu_pmd_he_hssi.h
> new file mode 100644
> index 0000000..38b433c
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_hssi.h
> @@ -0,0 +1,109 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _AFU_PMD_HE_HSSI_H_
> +#define _AFU_PMD_HE_HSSI_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "afu_pmd_core.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_HSSI_UUID_L 0xbb370242ac130002
> +#define HE_HSSI_UUID_H 0x823c334c98bf11ea
> +#define NUM_HE_HSSI_PORTS 8
> +
> +/* HE-HSSI registers definition */
> +#define TRAFFIC_CTRL_CMD 0x30
> +#define TRAFFIC_CTRL_DATA 0x38
> +#define TRAFFIC_CTRL_CH_SEL 0x40
> +#define AFU_SCRATCHPAD 0x48
> +
> +#define TG_NUM_PKT 0x3c00
> +#define TG_PKT_LEN_TYPE 0x3c01
> +#define TG_DATA_PATTERN 0x3c02
> +#define TG_START_XFR 0x3c03
> +#define TG_STOP_XFR 0x3c04
> +#define TG_SRC_MAC_L 0x3c05
> +#define TG_SRC_MAC_H 0x3c06
> +#define TG_DST_MAC_L 0x3c07
> +#define TG_DST_MAC_H 0x3c08
> +#define TG_PKT_XFRD 0x3c09
> +#define TG_NUM_RND_SEEDS 3
> +#define TG_RANDOM_SEED(n) (0x3c0a + (n))
> +#define TG_PKT_LEN 0x3c0d
> +
> +#define TM_NUM_PKT 0x3d00
> +#define TM_PKT_GOOD 0x3d01
> +#define TM_PKT_BAD 0x3d02
> +#define TM_BYTE_CNT0 0x3d03
> +#define TM_BYTE_CNT1 0x3d04
> +#define TM_AVST_RX_ERR 0x3d07
> +#define OVERFLOW_ERR (1 << 9)
> +#define LENGTH_ERR (1 << 8)
> +#define OVERSIZE_ERR (1 << 7)
> +#define UNDERSIZE_ERR (1 << 6)
> +#define MAC_CRC_ERR (1 << 5)
> +#define PHY_ERR (1 << 4)
> +#define ERR_VALID (1 << 3)
> +
> +#define LOOPBACK_EN 0x3e00
> +#define LOOPBACK_FIFO_STATUS 0x3e01
> +#define ALMOST_EMPTY (1 << 1)
> +#define ALMOST_FULL (1 << 0)
> +
> +#define MAILBOX_TIMEOUT_MS 100
> +#define MAILBOX_POLL_INTERVAL_MS 10
> +
> +struct traffic_ctrl_cmd {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_cmd:1;
> + uint32_t write_cmd:1;
> + uint32_t ack_trans:1;
> + uint32_t rsvd1:29;
> + uint32_t afu_cmd_addr:16;
> + uint32_t rsvd2:16;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_data {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_data;
> + uint32_t write_data;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_ch_sel {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t channel_sel:3;
> + uint32_t rsvd1:29;
> + uint32_t rsvd2;
> + };
> + };
> +};
> +
> +struct he_hssi_ctx {
> + uint8_t *addr;
> +};
> +
> +struct he_hssi_priv {
> + struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
> + struct he_hssi_ctx he_hssi_ctx;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _AFU_PMD_HE_HSSI_H_ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index dc6941d..cc30dc8 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -14,7 +14,8 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> - 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
> + 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c',
> + 'afu_pmd_he_hssi.c')
>
> includes += include_directories('base') includes +=
> include_directories('../../net/ipn3ke')
> diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
> index 213e854..b1cebbe 100644
> --- a/drivers/raw/ifpga/rte_pmd_afu.h
> +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> @@ -111,6 +111,24 @@ struct rte_pmd_afu_he_mem_tg_cfg {
> uint32_t channel_mask; /* mask of traffic generator channel */
> };
>
> +#define NUM_RND_SEEDS 3
> +
> +/**
> + * HE-HSSI AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_hssi_cfg {
> + uint32_t port;
> + uint32_t timeout;
> + uint32_t num_packets;
> + uint32_t random_length;
> + uint32_t packet_length;
> + uint32_t random_payload;
> + uint32_t rnd_seed[NUM_RND_SEEDS];
> + uint64_t src_addr;
> + uint64_t dest_addr;
> + int he_loopback;
> +};
> +
> #ifdef __cplusplus
> }
> #endif
> --
It looks good for me, you can add:
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread* RE: [PATCH v7 5/5] raw/ifpga: add HE-HSSI AFU driver
2022-06-09 7:37 ` [PATCH v7 5/5] raw/ifpga: add HE-HSSI " Wei Huang
2022-06-10 6:12 ` Zhang, Tianfei
@ 2022-06-15 7:14 ` Xu, Rosen
1 sibling, 0 replies; 57+ messages in thread
From: Xu, Rosen @ 2022-06-15 7:14 UTC (permalink / raw)
To: Huang, Wei, dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, Zhang, Tianfei, Zhang, Qi Z
Hi Wei,
> -----Original Message-----
> From: Huang, Wei <wei.huang@intel.com>
> Sent: Thursday, June 09, 2022 15:37
> To: dev@dpdk.org; thomas@monjalon.net; nipun.gupta@nxp.com;
> hemant.agrawal@nxp.com
> Cc: stable@dpdk.org; Xu, Rosen <rosen.xu@intel.com>; Zhang, Tianfei
> <tianfei.zhang@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>; Huang, Wei
> <wei.huang@intel.com>
> Subject: [PATCH v7 5/5] raw/ifpga: add HE-HSSI AFU driver
>
> HE-HSSI is one of the host exerciser modules in OFS FPGA, which is used to
> test HSSI (High Speed Serial Interface).
> This driver initialize the module and report test result.
>
> Signed-off-by: Wei Huang <wei.huang@intel.com>
> ---
> v2: move source files to ifpga and rename, refine code
> ---
> drivers/raw/ifpga/afu_pmd_he_hssi.c | 371
> ++++++++++++++++++++++++++++++++++++
> drivers/raw/ifpga/afu_pmd_he_hssi.h | 109 +++++++++++
> drivers/raw/ifpga/meson.build | 3 +-
> drivers/raw/ifpga/rte_pmd_afu.h | 18 ++
> 4 files changed, 500 insertions(+), 1 deletion(-) create mode 100644
> drivers/raw/ifpga/afu_pmd_he_hssi.c
> create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
>
> diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.c
> b/drivers/raw/ifpga/afu_pmd_he_hssi.c
> new file mode 100644
> index 0000000..102de50
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_hssi.c
> @@ -0,0 +1,371 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#include <errno.h>
> +#include <stdio.h>
> +#include <stdint.h>
> +#include <stdlib.h>
> +#include <inttypes.h>
> +#include <unistd.h>
> +#include <fcntl.h>
> +#include <poll.h>
> +#include <sys/eventfd.h>
> +#include <sys/ioctl.h>
> +
> +#include <rte_eal.h>
> +#include <rte_malloc.h>
> +#include <rte_memcpy.h>
> +#include <rte_io.h>
> +#include <rte_vfio.h>
> +#include <rte_bus_pci.h>
> +#include <rte_bus_ifpga.h>
> +#include <rte_rawdev.h>
> +
> +#include "afu_pmd_core.h"
> +#include "afu_pmd_he_hssi.h"
> +
> +static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("Indirect write 0x%x, value 0x%08x",
> addr,
> +value);
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + data.write_data = value;
> + rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
> +
> + cmd.csr = 0;
> + cmd.write_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + return 0;
> +}
> +
> +static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
> + uint32_t *value)
> +{
> + struct traffic_ctrl_cmd cmd;
> + struct traffic_ctrl_data data;
> + uint32_t i = 0;
> +
> + if (!ctx)
> + return -EINVAL;
> +
> + cmd.csr = 0;
> + cmd.read_cmd = 1;
> + cmd.afu_cmd_addr = addr;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> +
> + while (i < MAILBOX_TIMEOUT_MS) {
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (cmd.ack_trans) {
> + data.csr = rte_read64(ctx->addr +
> TRAFFIC_CTRL_DATA);
> + *value = data.read_data;
> + break;
> + }
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + i = 0;
> + cmd.csr = 0;
> + while (i < MAILBOX_TIMEOUT_MS) {
> + cmd.ack_trans = 1;
> + rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
> + rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
> + cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
> + if (!cmd.ack_trans)
> + break;
> + i += MAILBOX_POLL_INTERVAL_MS;
> + }
> + if (i >= MAILBOX_TIMEOUT_MS)
> + return -ETIMEDOUT;
> +
> + IFPGA_RAWDEV_PMD_DEBUG("Indirect read 0x%x, value 0x%08x",
> addr, *value);
> + return 0;
> +}
> +
> +static void he_hssi_report(struct he_hssi_ctx *ctx) {
> + uint32_t val = 0;
> + uint64_t v64 = 0;
> + int ret = 0;
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
> + if (ret)
> + return;
> + printf("Number of good packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
> + if (ret)
> + return;
> + printf("Number of bad packets received: %u\n", val);
> +
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
> + if (ret)
> + return;
> + v64 = val;
> + ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
> + if (ret)
> + return;
> + v64 = (v64 << 32) | val;
> + printf("Number of bytes received: %"PRIu64"\n", v64);
> +
> + ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
> + if (ret)
> + return;
> + if (val & ERR_VALID) {
> + printf("AVST rx error:");
> + if (val & OVERFLOW_ERR)
> + printf(" overflow");
> + if (val & LENGTH_ERR)
> + printf(" length");
> + if (val & OVERSIZE_ERR)
> + printf(" oversize");
> + if (val & UNDERSIZE_ERR)
> + printf(" undersize");
> + if (val & MAC_CRC_ERR)
> + printf(" crc");
> + if (val & PHY_ERR)
> + printf(" phy");
> + printf("\n");
> + }
> +
> + ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
> + if (ret)
> + return;
> + if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
> + printf("FIFO status:");
> + if (val & ALMOST_EMPTY)
> + printf(" almost empty");
> + if (val & ALMOST_FULL)
> + printf(" almost full");
> + printf("\n");
> + }
> +}
> +
> +static int he_hssi_test(struct afu_rawdev *dev) {
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> + struct traffic_ctrl_ch_sel sel;
> + uint32_t val = 0;
> + uint32_t i = 0;
> + int ret = 0;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + cfg = &priv->he_hssi_cfg;
> + ctx = &priv->he_hssi_ctx;
> +
> + ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
> + if (ret)
> + return ret;
> +
> + sel.channel_sel = cfg->port;
> + rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
> +
> + if (cfg->he_loopback >= 0) {
> + val = cfg->he_loopback ? 1 : 0;
> + IFPGA_RAWDEV_PMD_INFO("%s HE loopback on port %u",
> + val ? "Enable" : "Disable", cfg->port);
> + return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
> + if (ret)
> + return ret;
> +
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
> + if (ret)
> + return ret;
> +
> + val = cfg->src_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->src_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->dest_addr & 0xffffffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
> + if (ret)
> + return ret;
> + val = (cfg->dest_addr >> 32) & 0xffff;
> + ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_length ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
> + if (ret)
> + return ret;
> +
> + val = cfg->random_payload ? 1 : 0;
> + ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
> + if (ret)
> + return ret;
> +
> + for (i = 0; i < TG_NUM_RND_SEEDS; i++) {
> + ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
> + cfg->rnd_seed[i]);
> + if (ret)
> + return ret;
> + }
> +
> + ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
> + if (ret)
> + return ret;
> +
> + while (i++ < cfg->timeout) {
> + ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
> + if (ret)
> + break;
> + if (val == cfg->num_packets)
> + break;
> + sleep(1);
> + }
> +
> + he_hssi_report(ctx);
> +
> + return ret;
> +}
> +
> +static int he_hssi_init(struct afu_rawdev *dev) {
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv) {
> + priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
> + if (!priv)
> + return -ENOMEM;
> + dev->priv = priv;
> + }
> +
> + ctx = &priv->he_hssi_ctx;
> + ctx->addr = (uint8_t *)dev->addr;
> +
> + return 0;
> +}
> +
> +static int he_hssi_config(struct afu_rawdev *dev, void *config,
> + size_t config_size)
> +{
> + struct he_hssi_priv *priv = NULL;
> + struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
> +
> + if (!dev || !config || !config_size)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
> + return -EINVAL;
> +
> + cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
> + if (cfg->port >= NUM_HE_HSSI_PORTS)
> + return -EINVAL;
> +
> + rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
> +
> + return 0;
> +}
> +
> +static int he_hssi_close(struct afu_rawdev *dev) {
> + if (!dev)
> + return -EINVAL;
> +
> + rte_free(dev->priv);
> + dev->priv = NULL;
> +
> + return 0;
> +}
> +
> +static int he_hssi_dump(struct afu_rawdev *dev, FILE *f) {
> + struct he_hssi_priv *priv = NULL;
> + struct he_hssi_ctx *ctx = NULL;
> +
> + if (!dev)
> + return -EINVAL;
> +
> + priv = (struct he_hssi_priv *)dev->priv;
> + if (!priv)
> + return -ENOENT;
> +
> + if (!f)
> + f = stdout;
> +
> + ctx = &priv->he_hssi_ctx;
> +
> + fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
> +
> + return 0;
> +}
> +
> +static struct afu_ops he_hssi_ops = {
> + .init = he_hssi_init,
> + .config = he_hssi_config,
> + .start = NULL,
> + .stop = NULL,
> + .test = he_hssi_test,
> + .close = he_hssi_close,
> + .dump = he_hssi_dump,
> + .reset = NULL
> +};
> +
> +struct afu_rawdev_drv he_hssi_drv = {
> + .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
> + .ops = &he_hssi_ops
> +};
> +
> +AFU_PMD_REGISTER(he_hssi_drv);
> diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.h
> b/drivers/raw/ifpga/afu_pmd_he_hssi.h
> new file mode 100644
> index 0000000..38b433c
> --- /dev/null
> +++ b/drivers/raw/ifpga/afu_pmd_he_hssi.h
> @@ -0,0 +1,109 @@
> +/* SPDX-License-Identifier: BSD-3-Clause
> + * Copyright(c) 2022 Intel Corporation
> + */
> +
> +#ifndef _AFU_PMD_HE_HSSI_H_
> +#define _AFU_PMD_HE_HSSI_H_
> +
> +#ifdef __cplusplus
> +extern "C" {
> +#endif
> +
> +#include "afu_pmd_core.h"
> +#include "rte_pmd_afu.h"
> +
> +#define HE_HSSI_UUID_L 0xbb370242ac130002
> +#define HE_HSSI_UUID_H 0x823c334c98bf11ea
> +#define NUM_HE_HSSI_PORTS 8
> +
> +/* HE-HSSI registers definition */
> +#define TRAFFIC_CTRL_CMD 0x30
> +#define TRAFFIC_CTRL_DATA 0x38
> +#define TRAFFIC_CTRL_CH_SEL 0x40
> +#define AFU_SCRATCHPAD 0x48
> +
> +#define TG_NUM_PKT 0x3c00
> +#define TG_PKT_LEN_TYPE 0x3c01
> +#define TG_DATA_PATTERN 0x3c02
> +#define TG_START_XFR 0x3c03
> +#define TG_STOP_XFR 0x3c04
> +#define TG_SRC_MAC_L 0x3c05
> +#define TG_SRC_MAC_H 0x3c06
> +#define TG_DST_MAC_L 0x3c07
> +#define TG_DST_MAC_H 0x3c08
> +#define TG_PKT_XFRD 0x3c09
> +#define TG_NUM_RND_SEEDS 3
> +#define TG_RANDOM_SEED(n) (0x3c0a + (n))
> +#define TG_PKT_LEN 0x3c0d
> +
> +#define TM_NUM_PKT 0x3d00
> +#define TM_PKT_GOOD 0x3d01
> +#define TM_PKT_BAD 0x3d02
> +#define TM_BYTE_CNT0 0x3d03
> +#define TM_BYTE_CNT1 0x3d04
> +#define TM_AVST_RX_ERR 0x3d07
> +#define OVERFLOW_ERR (1 << 9)
> +#define LENGTH_ERR (1 << 8)
> +#define OVERSIZE_ERR (1 << 7)
> +#define UNDERSIZE_ERR (1 << 6)
> +#define MAC_CRC_ERR (1 << 5)
> +#define PHY_ERR (1 << 4)
> +#define ERR_VALID (1 << 3)
> +
> +#define LOOPBACK_EN 0x3e00
> +#define LOOPBACK_FIFO_STATUS 0x3e01
> +#define ALMOST_EMPTY (1 << 1)
> +#define ALMOST_FULL (1 << 0)
> +
> +#define MAILBOX_TIMEOUT_MS 100
> +#define MAILBOX_POLL_INTERVAL_MS 10
> +
> +struct traffic_ctrl_cmd {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_cmd:1;
> + uint32_t write_cmd:1;
> + uint32_t ack_trans:1;
> + uint32_t rsvd1:29;
> + uint32_t afu_cmd_addr:16;
> + uint32_t rsvd2:16;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_data {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t read_data;
> + uint32_t write_data;
> + };
> + };
> +};
> +
> +struct traffic_ctrl_ch_sel {
> + union {
> + uint64_t csr;
> + struct {
> + uint32_t channel_sel:3;
> + uint32_t rsvd1:29;
> + uint32_t rsvd2;
> + };
> + };
> +};
> +
> +struct he_hssi_ctx {
> + uint8_t *addr;
> +};
> +
> +struct he_hssi_priv {
> + struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
> + struct he_hssi_ctx he_hssi_ctx;
> +};
> +
> +#ifdef __cplusplus
> +}
> +#endif
> +
> +#endif /* _AFU_PMD_HE_HSSI_H_ */
> diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
> index dc6941d..cc30dc8 100644
> --- a/drivers/raw/ifpga/meson.build
> +++ b/drivers/raw/ifpga/meson.build
> @@ -14,7 +14,8 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
> 'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
>
> sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
> - 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
> + 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c',
> + 'afu_pmd_he_hssi.c')
>
> includes += include_directories('base') includes +=
> include_directories('../../net/ipn3ke')
> diff --git a/drivers/raw/ifpga/rte_pmd_afu.h
> b/drivers/raw/ifpga/rte_pmd_afu.h index 213e854..b1cebbe 100644
> --- a/drivers/raw/ifpga/rte_pmd_afu.h
> +++ b/drivers/raw/ifpga/rte_pmd_afu.h
> @@ -111,6 +111,24 @@ struct rte_pmd_afu_he_mem_tg_cfg {
> uint32_t channel_mask; /* mask of traffic generator channel */
> };
>
> +#define NUM_RND_SEEDS 3
> +
> +/**
> + * HE-HSSI AFU configuration data structure.
> + */
> +struct rte_pmd_afu_he_hssi_cfg {
> + uint32_t port;
> + uint32_t timeout;
> + uint32_t num_packets;
> + uint32_t random_length;
> + uint32_t packet_length;
> + uint32_t random_payload;
> + uint32_t rnd_seed[NUM_RND_SEEDS];
> + uint64_t src_addr;
> + uint64_t dest_addr;
> + int he_loopback;
> +};
> +
> #ifdef __cplusplus
> }
> #endif
> --
> 1.8.3.1
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
^ permalink raw reply [flat|nested] 57+ messages in thread
* [PATCH v8 0/5] introduce AFU PMD driver of FPGA
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (4 preceding siblings ...)
2022-06-09 7:37 ` [PATCH v7 5/5] raw/ifpga: add HE-HSSI " Wei Huang
@ 2022-06-16 3:00 ` Wei Huang
2022-06-16 3:00 ` [PATCH v8 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
` (5 more replies)
5 siblings, 6 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-16 3:00 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
The first patch implements the framework of the AFU PMD driver based on raw
device interfaces.
The subsequent patches implement the driver of some AFUs.
Changes from v7:
1. move driver description to ifpga.rst per Rosen comment.
2. rename function name according to DPDK program guide per Rosen comment.
Wei Huang (5):
raw/ifpga: introduce AFU driver framework
raw/ifpga: add N3000 AFU driver
raw/ifpga: add HE-LPBK AFU driver
raw/ifpga: add HE-MEM AFU driver
raw/ifpga: add HE-HSSI AFU driver
doc/guides/rawdevs/ifpga.rst | 98 ++
drivers/raw/ifpga/afu_pmd_core.c | 438 ++++++++
drivers/raw/ifpga/afu_pmd_core.h | 95 ++
drivers/raw/ifpga/afu_pmd_he_hssi.c | 371 +++++++
drivers/raw/ifpga/afu_pmd_he_hssi.h | 109 ++
drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436 ++++++++
drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++
drivers/raw/ifpga/afu_pmd_he_mem.c | 183 ++++
drivers/raw/ifpga/afu_pmd_he_mem.h | 46 +
drivers/raw/ifpga/afu_pmd_n3000.c | 2019 +++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_n3000.h | 339 ++++++
drivers/raw/ifpga/meson.build | 4 +-
drivers/raw/ifpga/rte_pmd_afu.h | 136 +++
13 files changed, 4399 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_core.c
create mode 100644 drivers/raw/ifpga/afu_pmd_core.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.h
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v8 1/5] raw/ifpga: introduce AFU driver framework
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
@ 2022-06-16 3:00 ` Wei Huang
2022-06-16 3:00 ` [PATCH v8 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
` (4 subsequent siblings)
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-16 3:00 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
AFU (Acceleration Function Unit) is part of FPGA and enumerated
by ifpga driver.
This driver implements common AFU device interfaces and exposes
them to application as standard raw device APIs.
Normally application can operate specified AFU as below,
1. call rte_rawdev_pmd_get_named_dev() to find AFU device.
2. call rte_rawdev_configure() to initialize AFU device.
3. call rte_rawdev_selftest() to test AFU device.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
---
v2: fix typo
---
v3: fix build error in FreeBSD13-64, UB2004-32 and UB2204-32
---
v4: fix coding style issue and build error in FreeBSD13-64
---
v5: split patch into several patches
---
v6: move source files to ifpga and rename, use spinlock
---
v7: move driver description into ifpga.rst
---
doc/guides/rawdevs/ifpga.rst | 98 +++++++++
drivers/raw/ifpga/afu_pmd_core.c | 438 +++++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_core.h | 76 +++++++
drivers/raw/ifpga/meson.build | 2 +-
4 files changed, 613 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_core.c
create mode 100644 drivers/raw/ifpga/afu_pmd_core.h
diff --git a/doc/guides/rawdevs/ifpga.rst b/doc/guides/rawdevs/ifpga.rst
index bf557b2..5fb8d37 100644
--- a/doc/guides/rawdevs/ifpga.rst
+++ b/doc/guides/rawdevs/ifpga.rst
@@ -102,6 +102,104 @@ The following device parameters are supported:
identifies AFU Bit Stream file.
+IFPGA AFU Driver
+===================
+
+AFU (Acceleration Function Unit) is a function or set of functions that perform
+various acceleration task on FPGA platform. The image of AFU is called as GBS
+(Green Bit Stream) which can be used by PR (Partial Reconfigure) tool to load
+into the FPGA, different AFUs can be dynamically reloaded respectively.
+
+AFU has two main communication paths between the host:
+
+- FPGA to host transactions
+
+ The FPGA accesses host memory using a 512 bits data path. This data path has
+ separate channels for read and write traffic allowing for simultaneous read
+ and write to occur. The read and write channels support bursts of 1, 2, and
+ 4 cache lines.
+
+- Host to FPGA (MMIO) transactions
+
+ The host can access a 256 KB address space within the FPGA. This address space
+ contains Device Feature Header (DFHs) and the control and status registers of
+ the AFU hardware.
+
+AFU must implement the following registers:
+
+- AFU DFH - a 64-bit header at MMIO address offset 0x0
+
+- AFU ID - a 128-bit UUID at MMIO address offset 0x2
+
+The AFU is enumerated and recorded by IFPGA Rawdev Driver. Then AFU devices are
+created with the help of IFPGA Bus Driver, AFU driver probe these AFU devices
+and expose them as standard raw devices for application to access.
+
+Implementation details
+----------------------
+
+IFPGA Rawdev Driver identifies AFU in FPGA, AFU location (PF/VF address) and
+UUID are taken by ifpga_rawdev_cfg vdev driver which hot plug AFU into IFPGA
+Bus.
+
+IFPGA Bus takes AFU device scan and AFU driver probe. All AFU device driver
+bind to AFU device by its dedicated UUID. To avoid unnecessary code duplication
+and ensure maximum performance, AFU driver implements the common part of raw
+device driver. Several specific AFU drivers are provided for reference. The
+design is summarized by the following block diagram::
+
+ +---------------------------------------------------------------+
+ | Application(s) |
+ +----------------------------.----------------------------------+
+ |
+ +----------------------------'----------------------------------+
+ | DPDK Framework (Rawdev APIs) |
+ +-----------------+------------------------------------+--------+
+ | |
+ +-----------------'----------------+ |
+ | IFPGA AFU Driver | +--------'--------+
+ | | | |
+ |+---------------+ +--------------+| | |
+ || AFU Dev1 PMD | | AFU Dev2 PMD || | |
+ |+-------+-------+ +-------+------+| | |
+ +--------|-----------------|-------+ | |
+ | | | |
+ +--------'------+ +-------'-------+ | IFPGA |
+ | AFU Dev1 | | AFU Dev2 | | Rawdev Driver |
+ +-------.-------+ +-------.-------+ | |
+ | | Rawdev | |
+ +-------'------------------'-------+ Ops | |
+ | IFPGA Bus |--------->| |
+ +-----------------.----------------+ +--------.--------+
+ | |
+ Hot-plugin -->| |
+ | |
+ +-----------------'------------------+ +--------'--------+
+ | ifpga_rawdev_cfg vdev driver | | Intel FpgaDev |
+ +------------------------------------+ +-----------------+
+
+How to test AFU function
+------------------------
+
+Suppose AFU is found in FPGA at PCI address 31:00.0, then you can create
+and test a AFU device by following steps in application.
+
+1. rte_vdev_init("ifpga_rawdev_cfg0", "ifpga=31:00.0,port=0")
+
+2. rawdev = rte_rawdev_pmd_get_named_dev("afu_0|31:00.0")
+
+3. rte_rawdev_configure(rawdev->dev_id, &cfg, sizeof(cfg))
+
+4. rte_rawdev_selftest(rawdev->dev_id)
+
+5. rte_vdev_uninit("ifpga_rawdev_cfg0")
+
+AFU device name format used in rte_rawdev_pmd_get_named_dev is
+"afu_[port]|[BDF]". Please refer to OPAE documentation for the meaning of
+port. Each AFU device has specific configuration data, they are defined
+in rte_pmd_afu.h.
+
+
Open FPGA Stack
=====================
diff --git a/drivers/raw/ifpga/afu_pmd_core.c b/drivers/raw/ifpga/afu_pmd_core.c
new file mode 100644
index 0000000..ddf7a34
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_core.c
@@ -0,0 +1,438 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memzone.h>
+#include <rte_rawdev_pmd.h>
+
+#include "afu_pmd_core.h"
+
+static struct rte_afu_uuid afu_pmd_uuid_map[AFU_RAWDEV_MAX_DRVS+1];
+TAILQ_HEAD(afu_drv_list, afu_rawdev_drv);
+static struct afu_drv_list afu_pmd_list = TAILQ_HEAD_INITIALIZER(afu_pmd_list);
+
+static inline int afu_rawdev_trylock(struct afu_rawdev *dev)
+{
+ if (!dev || !dev->sd)
+ return 0;
+
+ return rte_spinlock_trylock(&dev->sd->lock);
+}
+
+static inline void afu_rawdev_unlock(struct afu_rawdev *dev)
+{
+ if (!dev || !dev->sd)
+ return;
+
+ rte_spinlock_unlock(&dev->sd->lock);
+}
+
+static int afu_rawdev_configure(const struct rte_rawdev *rawdev,
+ rte_rawdev_obj_t config, size_t config_size)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->config)
+ ret = (*dev->ops->config)(dev, config, config_size);
+
+ return ret;
+}
+
+static int afu_rawdev_start(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please start it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->start)
+ ret = (*dev->ops->start)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static void afu_rawdev_stop(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please stop it later");
+ return;
+ }
+
+ if (dev->ops && dev->ops->stop)
+ ret = (*dev->ops->stop)(dev);
+
+ afu_rawdev_unlock(dev);
+}
+
+static int afu_rawdev_close(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->close)
+ ret = (*dev->ops->close)(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_reset(struct rte_rawdev *rawdev)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please reset it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->reset)
+ ret = (*dev->ops->reset)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_selftest(uint16_t dev_id)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ if (!rte_rawdev_pmd_is_valid_dev(dev_id))
+ return -ENODEV;
+
+ dev = afu_rawdev_get_priv(&rte_rawdevs[dev_id]);
+ if (!dev)
+ return -ENOENT;
+
+ ret = afu_rawdev_trylock(dev);
+ if (!ret) {
+ IFPGA_RAWDEV_PMD_WARN("AFU is busy, please test it later");
+ return ret;
+ }
+
+ if (dev->ops && dev->ops->test)
+ ret = (*dev->ops->test)(dev);
+
+ afu_rawdev_unlock(dev);
+
+ return ret;
+}
+
+static int afu_rawdev_dump(struct rte_rawdev *rawdev, FILE *f)
+{
+ struct afu_rawdev *dev = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ return -ENODEV;
+
+ if (dev->ops && dev->ops->dump)
+ ret = (*dev->ops->dump)(dev, f);
+
+ return ret;
+}
+
+static const struct rte_rawdev_ops afu_rawdev_ops = {
+ .dev_info_get = NULL,
+ .dev_configure = afu_rawdev_configure,
+ .dev_start = afu_rawdev_start,
+ .dev_stop = afu_rawdev_stop,
+ .dev_close = afu_rawdev_close,
+ .dev_reset = afu_rawdev_reset,
+
+ .queue_def_conf = NULL,
+ .queue_setup = NULL,
+ .queue_release = NULL,
+ .queue_count = NULL,
+
+ .attr_get = NULL,
+ .attr_set = NULL,
+
+ .enqueue_bufs = NULL,
+ .dequeue_bufs = NULL,
+
+ .dump = afu_rawdev_dump,
+
+ .xstats_get = NULL,
+ .xstats_get_names = NULL,
+ .xstats_get_by_name = NULL,
+ .xstats_reset = NULL,
+
+ .firmware_status_get = NULL,
+ .firmware_version_get = NULL,
+ .firmware_load = NULL,
+ .firmware_unload = NULL,
+
+ .dev_selftest = afu_rawdev_selftest,
+};
+
+static int afu_shared_data_alloc(const char *name,
+ struct afu_shared_data **data, int socket_id)
+{
+ const struct rte_memzone *mz;
+ char mz_name[RTE_MEMZONE_NAMESIZE];
+ struct afu_shared_data *sd = NULL;
+ int init_mz = 0;
+
+ if (!name || !data)
+ return -EINVAL;
+
+ /* name format is afu_?|??:??.? which is unique */
+ snprintf(mz_name, sizeof(mz_name), "%s", name);
+
+ mz = rte_memzone_lookup(mz_name);
+ if (!mz) {
+ mz = rte_memzone_reserve(mz_name, sizeof(struct afu_shared_data),
+ socket_id, 0);
+ init_mz = 1;
+ }
+
+ if (!mz) {
+ IFPGA_RAWDEV_PMD_ERR("Allocate memory zone %s failed!",
+ mz_name);
+ return -ENOMEM;
+ }
+
+ sd = (struct afu_shared_data *)mz->addr;
+
+ if (init_mz) /* initialize memory zone on the first time */
+ rte_spinlock_init(&sd->lock);
+
+ *data = sd;
+
+ return 0;
+}
+
+static int afu_rawdev_name_get(struct rte_afu_device *afu_dev, char *name,
+ size_t size)
+{
+ int n = 0;
+
+ if (!afu_dev || !name || !size)
+ return -EINVAL;
+
+ n = snprintf(name, size, "afu_%s", afu_dev->device.name);
+ if (n >= (int)size) {
+ IFPGA_RAWDEV_PMD_ERR("Name of AFU device is too long!");
+ return -ENAMETOOLONG;
+ }
+
+ return 0;
+}
+
+static struct afu_ops *afu_ops_get(struct rte_afu_uuid *afu_id)
+{
+ struct afu_rawdev_drv *drv = NULL;
+
+ if (!afu_id)
+ return NULL;
+
+ TAILQ_FOREACH(drv, &afu_pmd_list, next) {
+ if ((drv->uuid.uuid_low == afu_id->uuid_low) &&
+ (drv->uuid.uuid_high == afu_id->uuid_high))
+ break;
+ }
+
+ return drv ? drv->ops : NULL;
+}
+
+static int afu_rawdev_create(struct rte_afu_device *afu_dev, int socket_id)
+{
+ struct rte_rawdev *rawdev = NULL;
+ struct afu_rawdev *dev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ IFPGA_RAWDEV_PMD_INFO("Create raw device %s on NUMA node %d",
+ name, socket_id);
+
+ /* Allocate device structure */
+ rawdev = rte_rawdev_pmd_allocate(name, sizeof(struct afu_rawdev),
+ socket_id);
+ if (!rawdev) {
+ IFPGA_RAWDEV_PMD_ERR("Unable to allocate raw device");
+ return -ENOMEM;
+ }
+
+ rawdev->dev_ops = &afu_rawdev_ops;
+ rawdev->device = &afu_dev->device;
+ rawdev->driver_name = afu_dev->driver->driver.name;
+
+ dev = afu_rawdev_get_priv(rawdev);
+ if (!dev)
+ goto cleanup;
+
+ dev->rawdev = rawdev;
+ dev->port = afu_dev->id.port;
+ dev->addr = afu_dev->mem_resource[0].addr;
+ dev->ops = afu_ops_get(&afu_dev->id.uuid);
+ if (dev->ops == NULL) {
+ IFPGA_RAWDEV_PMD_ERR("Unsupported AFU device");
+ goto cleanup;
+ }
+
+ if (dev->ops->init) {
+ ret = (*dev->ops->init)(dev);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to init %s", name);
+ goto cleanup;
+ }
+ }
+
+ ret = afu_shared_data_alloc(name, &dev->sd, socket_id);
+ if (ret)
+ goto cleanup;
+
+ return ret;
+
+cleanup:
+ rte_rawdev_pmd_release(rawdev);
+ return ret;
+}
+
+static int afu_rawdev_destroy(struct rte_afu_device *afu_dev)
+{
+ struct rte_rawdev *rawdev = NULL;
+ char name[RTE_RAWDEV_NAME_MAX_LEN] = {0};
+ int ret = 0;
+
+ if (!afu_dev)
+ return -EINVAL;
+
+ ret = afu_rawdev_name_get(afu_dev, name, sizeof(name));
+ if (ret)
+ return ret;
+
+ IFPGA_RAWDEV_PMD_INFO("Destroy raw device %s", name);
+
+ rawdev = rte_rawdev_pmd_get_named_dev(name);
+ if (!rawdev) {
+ IFPGA_RAWDEV_PMD_ERR("Raw device %s not found", name);
+ return -EINVAL;
+ }
+
+ /* rte_rawdev_close is called by pmd_release */
+ ret = rte_rawdev_pmd_release(rawdev);
+ if (ret)
+ IFPGA_RAWDEV_PMD_DEBUG("Device cleanup failed");
+
+ return 0;
+}
+
+static int afu_rawdev_probe(struct rte_afu_device *afu_dev)
+{
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+ return afu_rawdev_create(afu_dev, rte_socket_id());
+}
+
+static int afu_rawdev_remove(struct rte_afu_device *afu_dev)
+{
+ IFPGA_RAWDEV_PMD_FUNC_TRACE();
+ return afu_rawdev_destroy(afu_dev);
+}
+
+static struct rte_afu_driver afu_pmd = {
+ .id_table = afu_pmd_uuid_map,
+ .probe = afu_rawdev_probe,
+ .remove = afu_rawdev_remove
+};
+
+RTE_PMD_REGISTER_AFU(afu_rawdev_driver, afu_pmd);
+
+static void update_uuid_map(void)
+{
+ int i = 0;
+ struct rte_afu_uuid *afu_id = afu_pmd_uuid_map;
+ struct afu_rawdev_drv *drv;
+
+ TAILQ_FOREACH(drv, &afu_pmd_list, next) {
+ if (i++ < AFU_RAWDEV_MAX_DRVS) {
+ afu_id->uuid_low = drv->uuid.uuid_low;
+ afu_id->uuid_high = drv->uuid.uuid_high;
+ afu_id++;
+ }
+ }
+ if (i <= AFU_RAWDEV_MAX_DRVS) {
+ afu_id->uuid_low = 0;
+ afu_id->uuid_high = 0;
+ }
+}
+
+void afu_pmd_register(struct afu_rawdev_drv *driver)
+{
+ TAILQ_INSERT_TAIL(&afu_pmd_list, driver, next);
+ update_uuid_map();
+}
+
+void afu_pmd_unregister(struct afu_rawdev_drv *driver)
+{
+ TAILQ_REMOVE(&afu_pmd_list, driver, next);
+ update_uuid_map();
+}
diff --git a/drivers/raw/ifpga/afu_pmd_core.h b/drivers/raw/ifpga/afu_pmd_core.h
new file mode 100644
index 0000000..4fad2c7
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_core.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __AFU_PMD_CORE_H__
+#define __AFU_PMD_CORE_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <rte_spinlock.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "ifpga_rawdev.h"
+
+#define AFU_RAWDEV_MAX_DRVS 32
+
+struct afu_rawdev;
+
+struct afu_ops {
+ int (*init)(struct afu_rawdev *dev);
+ int (*config)(struct afu_rawdev *dev, void *config,
+ size_t config_size);
+ int (*start)(struct afu_rawdev *dev);
+ int (*stop)(struct afu_rawdev *dev);
+ int (*test)(struct afu_rawdev *dev);
+ int (*close)(struct afu_rawdev *dev);
+ int (*reset)(struct afu_rawdev *dev);
+ int (*dump)(struct afu_rawdev *dev, FILE *f);
+};
+
+struct afu_shared_data {
+ rte_spinlock_t lock; /* lock for multi-process access */
+};
+
+struct afu_rawdev_drv {
+ TAILQ_ENTRY(afu_rawdev_drv) next;
+ struct rte_afu_uuid uuid;
+ struct afu_ops *ops;
+};
+
+struct afu_rawdev {
+ struct rte_rawdev *rawdev; /* point to parent raw device */
+ struct afu_shared_data *sd; /* shared data for multi-process */
+ struct afu_ops *ops; /* device operation functions */
+ int port; /* index of port the AFU attached */
+ void *addr; /* base address of AFU registers */
+ void *priv; /* private driver data */
+};
+
+static inline struct afu_rawdev *
+afu_rawdev_get_priv(const struct rte_rawdev *rawdev)
+{
+ return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
+}
+
+void afu_pmd_register(struct afu_rawdev_drv *driver);
+void afu_pmd_unregister(struct afu_rawdev_drv *driver);
+
+#define AFU_PMD_REGISTER(drv)\
+RTE_INIT(afupmdinitfunc_ ##drv)\
+{\
+ afu_pmd_register(&drv);\
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __AFU_PMD_CORE_H__ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index aeccc17..d9a6f29 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -13,7 +13,7 @@ objs = [base_objs]
deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
-sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c')
+sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v8 2/5] raw/ifpga: add N3000 AFU driver
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-16 3:00 ` [PATCH v8 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
@ 2022-06-16 3:00 ` Wei Huang
2022-06-16 3:00 ` [PATCH v8 3/5] raw/ifpga: add HE-LPBK " Wei Huang
` (3 subsequent siblings)
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-16 3:00 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
N3000 AFU includes NLB0 and DMA modules, NLB0 is used to test PCI bus
and DMA is used to test local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
---
v2: move source files to ifpga and rename, refine code
---
v3: fix Ubuntu 20.04 ARM build
---
v4: rename function name according to DPDK program guide
---
drivers/raw/ifpga/afu_pmd_core.h | 19 +
drivers/raw/ifpga/afu_pmd_n3000.c | 2019 +++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_n3000.h | 339 +++++++
drivers/raw/ifpga/meson.build | 3 +-
drivers/raw/ifpga/rte_pmd_afu.h | 97 ++
5 files changed, 2476 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.c
create mode 100644 drivers/raw/ifpga/afu_pmd_n3000.h
create mode 100644 drivers/raw/ifpga/rte_pmd_afu.h
diff --git a/drivers/raw/ifpga/afu_pmd_core.h b/drivers/raw/ifpga/afu_pmd_core.h
index 4fad2c7..a938172 100644
--- a/drivers/raw/ifpga/afu_pmd_core.h
+++ b/drivers/raw/ifpga/afu_pmd_core.h
@@ -14,6 +14,7 @@
#include <unistd.h>
#include <rte_spinlock.h>
+#include <rte_cycles.h>
#include <rte_bus_ifpga.h>
#include <rte_rawdev.h>
@@ -60,6 +61,24 @@ struct afu_rawdev {
return rawdev ? (struct afu_rawdev *)rawdev->dev_private : NULL;
}
+#define CLS_TO_SIZE(n) ((n) << 6) /* get size of n cache lines */
+#define SIZE_TO_CLS(s) ((s) >> 6) /* convert size to number of cache lines */
+#define MHZ(f) ((f) * 1000000)
+
+#define dsm_poll_timeout(addr, val, cond, invl, timeout) \
+({ \
+ uint64_t __wait = 0; \
+ uint64_t __invl = (invl); \
+ uint64_t __timeout = (timeout); \
+ for (; __wait <= __timeout; __wait += __invl) { \
+ (val) = *(addr); \
+ if (cond) \
+ break; \
+ rte_delay_ms(__invl); \
+ } \
+ (cond) ? 0 : 1; \
+})
+
void afu_pmd_register(struct afu_rawdev_drv *driver);
void afu_pmd_unregister(struct afu_rawdev_drv *driver);
diff --git a/drivers/raw/ifpga/afu_pmd_n3000.c b/drivers/raw/ifpga/afu_pmd_n3000.c
new file mode 100644
index 0000000..8708164
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_n3000.c
@@ -0,0 +1,2019 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_n3000.h"
+
+static int nlb_afu_config(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->nlb_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ if (cfg->cache_policy == NLB_WRPUSH_I)
+ v.wrpush_i = 1;
+ else
+ v.wrthru_en = cfg->cache_policy;
+
+ if (cfg->cache_hint == NLB_RDLINE_MIXED)
+ v.rdsel = 3;
+ else
+ v.rdsel = cfg->cache_hint;
+
+ v.mode = cfg->mode;
+ v.chsel = cfg->read_vc;
+ v.wr_chsel = cfg->write_vc;
+ v.wrfence_chsel = cfg->wrfence_vc;
+ v.wrthru_en = cfg->cache_policy;
+ v.multicl_len = cfg->multi_cl - 1;
+
+ IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->nlb_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void nlb_afu_report(struct afu_rawdev *dev, uint32_t cl)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_dsm_status *stat = NULL;
+ uint64_t ticks = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ cfg = &priv->nlb_cfg;
+ stat = priv->nlb_ctx.status_ptr;
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0)
+ cfg->freq_mhz = 200;
+
+ num = (double)stat->num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat->num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Clocks@%uMHz "
+ "Rd_Bandwidth Wr_Bandwidth\n", cfg->freq_mhz);
+ printf("%10u %10u %11u %12"PRIu64" %7.3f GB/s %7.3f GB/s\n",
+ cl, stat->num_reads, stat->num_writes, ticks,
+ rd_bw / 1e9, wr_bw / 1e9);
+}
+
+static int nlb_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_nlb_cfg *cfg = NULL;
+ struct nlb_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ ctx = &priv->nlb_ctx;
+ cfg = &priv->nlb_cfg;
+
+ /* initialize registers */
+ IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write64(ctx->dsm_iova, ctx->addr + CSR_AFU_DSM_BASEL);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+ IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ ret = nlb_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl, ctx->addr + CSR_NUM_LINES);
+
+ rte_delay_us(10);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ nlb_afu_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ IFPGA_RAWDEV_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+
+end:
+ return ret;
+}
+
+static void dma_afu_buf_free(struct dma_afu_ctx *ctx)
+{
+ int i = 0;
+
+ if (!ctx)
+ return;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+
+ rte_free(ctx->ref_buf);
+ ctx->ref_buf = NULL;
+}
+
+static int dma_afu_buf_alloc(struct dma_afu_ctx *ctx,
+ struct rte_pmd_afu_dma_cfg *cfg)
+{
+ size_t page_sz = sysconf(_SC_PAGE_SIZE);
+ int i, ret = 0;
+
+ if (!ctx || !cfg)
+ return -EINVAL;
+
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ ctx->dma_buf[i] = (uint64_t *)rte_zmalloc(NULL, cfg->size,
+ TEST_MEM_ALIGN);
+ if (!ctx->dma_buf[i]) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+ ctx->dma_iova[i] = rte_malloc_virt2iova(ctx->dma_buf[i]);
+ if (ctx->dma_iova[i] == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+ }
+
+ ctx->data_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->data_buf) {
+ ret = -ENOMEM;
+ goto free_dma_buf;
+ }
+
+ ctx->ref_buf = rte_malloc(NULL, cfg->length, page_sz);
+ if (!ctx->ref_buf) {
+ ret = -ENOMEM;
+ goto free_data_buf;
+ }
+
+ return 0;
+
+free_data_buf:
+ rte_free(ctx->data_buf);
+ ctx->data_buf = NULL;
+free_dma_buf:
+ for (i = 0; i < NUM_DMA_BUF; i++) {
+ rte_free(ctx->dma_buf[i]);
+ ctx->dma_buf[i] = NULL;
+ }
+ return ret;
+}
+
+static void dma_afu_buf_init(struct dma_afu_ctx *ctx, size_t size)
+{
+ int *ptr = NULL;
+ size_t i = 0;
+ size_t dword_size = 0;
+
+ if (!ctx || !size)
+ return;
+
+ ptr = (int *)ctx->ref_buf;
+
+ if (ctx->pattern) {
+ memset(ptr, ctx->pattern, size);
+ } else {
+ srand(99);
+ dword_size = size >> 2;
+ for (i = 0; i < dword_size; i++)
+ *ptr++ = rand();
+ }
+ rte_memcpy(ctx->data_buf, ctx->ref_buf, size);
+}
+
+static int dma_afu_buf_verify(struct dma_afu_ctx *ctx, size_t size)
+{
+ uint8_t *src = NULL;
+ uint8_t *dst = NULL;
+ size_t i = 0;
+ int n = 0;
+
+ if (!ctx || !size)
+ return -EINVAL;
+
+ src = (uint8_t *)ctx->ref_buf;
+ dst = (uint8_t *)ctx->data_buf;
+
+ if (memcmp(src, dst, size)) {
+ printf("Transfer is corrupted\n");
+ if (ctx->verbose) {
+ for (i = 0; i < size; i++) {
+ if (*src != *dst) {
+ if (++n >= ERR_CHECK_LIMIT)
+ break;
+ printf("Mismatch at 0x%zx, "
+ "Expected %02x Actual %02x\n",
+ i, *src, *dst);
+ }
+ src++;
+ dst++;
+ }
+ if (n < ERR_CHECK_LIMIT) {
+ printf("Found %d error bytes\n", n);
+ } else {
+ printf("......\n");
+ printf("Found more than %d error bytes\n", n);
+ }
+ }
+ return -1;
+ }
+
+ printf("Transfer is verified\n");
+ return 0;
+}
+
+static void blk_write64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ rte_write64(*host_addr, dev_addr);
+}
+
+static void blk_read64(uint64_t *dev_addr, uint64_t *host_addr, uint64_t bytes)
+{
+ uint64_t qwords = bytes / sizeof(uint64_t);
+
+ if (!IS_ALIGNED_QWORD((uint64_t)dev_addr) ||
+ !IS_ALIGNED_QWORD((uint64_t)bytes))
+ return;
+
+ for (; qwords > 0; qwords--, host_addr++, dev_addr++)
+ *host_addr = rte_read64(dev_addr);
+}
+
+static void switch_ase_page(struct dma_afu_ctx *ctx, uint64_t addr)
+{
+ uint64_t requested_page = addr & ~DMA_ASE_WINDOW_MASK;
+
+ if (!ctx)
+ return;
+
+ if (requested_page != ctx->cur_ase_page) {
+ rte_write64(requested_page, ctx->ase_ctrl_addr);
+ ctx->cur_ase_page = requested_page;
+ }
+}
+
+static int ase_write_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy(((char *)(&val)) + shift, (void *)addr, count);
+
+ /* write back to device */
+ rte_write64(val, ctx->ase_data_addr + dev_aligned_addr);
+
+ return 0;
+}
+
+static int ase_write(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(dst))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(dst)) {
+ /* Write out a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Write out blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= dst & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ blk_write64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)src, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Write out remaining DWORD */
+ switch_ase_page(ctx, dst);
+ offset = dst & DMA_ASE_WINDOW_MASK;
+ rte_write32(*(uint32_t *)(uintptr_t)src,
+ ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t *dst_ptr,
+ uint64_t *src_ptr, uint64_t count)
+{
+ uint64_t dst = *dst_ptr;
+ uint64_t src = *src_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* aligns address to 8 byte using dst masking method */
+ if (!IS_ALIGNED_DWORD(dst) && !IS_ALIGNED_QWORD(dst)) {
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ src += unaligned_size;
+ dst += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_write(ctx, &dst, &src, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using dst masking method */
+ unaligned_size = QWORD_BYTES - (dst % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_write_unaligned(ctx, dst, src, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static int ase_read_unaligned(struct dma_afu_ctx *ctx, uint64_t dev_addr,
+ uint64_t host_addr, uint32_t count)
+{
+ uint64_t dev_aligned_addr = 0;
+ uint64_t shift = 0;
+ uint64_t val = 0;
+ uintptr_t addr = (uintptr_t)host_addr; /* transfer to pointer size */
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%x)", host_addr,
+ dev_addr, count);
+
+ if (!ctx || (count >= QWORD_BYTES))
+ return -EINVAL;
+
+ if (!count)
+ return 0;
+
+ switch_ase_page(ctx, dev_addr);
+
+ shift = dev_addr % QWORD_BYTES;
+ dev_aligned_addr = (dev_addr - shift) & DMA_ASE_WINDOW_MASK;
+ val = rte_read64(ctx->ase_data_addr + dev_aligned_addr);
+ rte_memcpy((void *)addr, ((char *)(&val)) + shift, count);
+
+ return 0;
+}
+
+static int ase_read(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t *count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t align_bytes = *count;
+ uint64_t offset = 0;
+ uint64_t left_in_page = DMA_ASE_WINDOW;
+ uint64_t size_to_copy = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" <-- 0x%"PRIx64" (0x%"PRIx64")", dst, src,
+ align_bytes);
+
+ if (!ctx || !IS_ALIGNED_DWORD(src))
+ return -EINVAL;
+
+ if (align_bytes < DWORD_BYTES)
+ return 0;
+
+ if (!IS_ALIGNED_QWORD(src)) {
+ /* Read a single DWORD to get QWORD aligned */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ if (!align_bytes)
+ return 0;
+
+ /* Read blocks of 64-bit values */
+ while (align_bytes >= QWORD_BYTES) {
+ left_in_page -= src & DMA_ASE_WINDOW_MASK;
+ size_to_copy =
+ MIN(left_in_page, (align_bytes & ~(QWORD_BYTES - 1)));
+ if (size_to_copy < QWORD_BYTES)
+ break;
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ blk_read64((uint64_t *)(ctx->ase_data_addr + offset),
+ (uint64_t *)(uintptr_t)dst, size_to_copy);
+ src += size_to_copy;
+ dst += size_to_copy;
+ align_bytes -= size_to_copy;
+ }
+
+ if (align_bytes >= DWORD_BYTES) {
+ /* Read remaining DWORD */
+ switch_ase_page(ctx, src);
+ offset = src & DMA_ASE_WINDOW_MASK;
+ *(uint32_t *)(uintptr_t)dst =
+ rte_read32(ctx->ase_data_addr + offset);
+ src += DWORD_BYTES;
+ dst += DWORD_BYTES;
+ align_bytes -= DWORD_BYTES;
+ }
+
+ *src_ptr = src;
+ *dst_ptr = dst;
+ *count = align_bytes;
+
+ return 0;
+}
+
+static int ase_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t *src_ptr,
+ uint64_t *dst_ptr, uint64_t count)
+{
+ uint64_t src = *src_ptr;
+ uint64_t dst = *dst_ptr;
+ uint64_t count_left = count;
+ uint64_t unaligned_size = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64" (0x%"PRIx64")", src, dst,
+ count);
+
+ /* Aligns address to 8 byte using src masking method */
+ if (!IS_ALIGNED_DWORD(src) && !IS_ALIGNED_QWORD(src)) {
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+ count_left -= unaligned_size;
+ dst += unaligned_size;
+ src += unaligned_size;
+ }
+
+ /* Handles 8/4 byte MMIO transfer */
+ ret = ase_read(ctx, &src, &dst, &count_left);
+ if (ret)
+ return ret;
+
+ /* Left over unaligned bytes transferred using src masking method */
+ unaligned_size = QWORD_BYTES - (src % QWORD_BYTES);
+ if (unaligned_size > count_left)
+ unaligned_size = count_left;
+
+ ret = ase_read_unaligned(ctx, src, dst, unaligned_size);
+ if (ret)
+ return ret;
+
+ count_left -= unaligned_size;
+ *dst_ptr = dst + unaligned_size;
+ *src_ptr = src + unaligned_size;
+
+ return 0;
+}
+
+static void clear_interrupt(struct dma_afu_ctx *ctx)
+{
+ /* clear interrupt by writing 1 to IRQ bit in status register */
+ msgdma_status status;
+
+ if (!ctx)
+ return;
+
+ status.csr = 0;
+ status.irq = 1;
+ rte_write32(status.csr, CSR_STATUS(ctx->csr_addr));
+}
+
+static int poll_interrupt(struct dma_afu_ctx *ctx)
+{
+ struct pollfd pfd = {0};
+ uint64_t count = 0;
+ ssize_t bytes_read = 0;
+ int poll_ret = 0;
+ int ret = 0;
+
+ if (!ctx || (ctx->event_fd < 0))
+ return -EINVAL;
+
+ pfd.fd = ctx->event_fd;
+ pfd.events = POLLIN;
+ poll_ret = poll(&pfd, 1, DMA_TIMEOUT_MSEC);
+ if (poll_ret < 0) {
+ IFPGA_RAWDEV_PMD_ERR("Error %s", strerror(errno));
+ ret = -EFAULT;
+ goto out;
+ } else if (poll_ret == 0) {
+ IFPGA_RAWDEV_PMD_ERR("Timeout");
+ ret = -ETIMEDOUT;
+ } else {
+ bytes_read = read(pfd.fd, &count, sizeof(count));
+ if (bytes_read > 0) {
+ if (ctx->verbose)
+ IFPGA_RAWDEV_PMD_DEBUG("Successful, ret %d, cnt %"PRIu64,
+ poll_ret, count);
+ ret = 0;
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Failed %s", bytes_read > 0 ?
+ strerror(errno) : "zero bytes read");
+ ret = -EIO;
+ }
+ }
+out:
+ clear_interrupt(ctx);
+ return ret;
+}
+
+static void send_descriptor(struct dma_afu_ctx *ctx, msgdma_ext_desc *desc)
+{
+ msgdma_status status;
+ uint64_t fpga_queue_full = 0;
+
+ if (!ctx)
+ return;
+
+ if (ctx->verbose) {
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_address = 0x%x%08x",
+ desc->rd_address_ext, desc->rd_address);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_address = 0x%x%08x",
+ desc->wr_address_ext, desc->wr_address);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.len = %u", desc->len);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_burst_count = %u",
+ desc->wr_burst_count);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_burst_count = %u",
+ desc->rd_burst_count);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.wr_stride %u", desc->wr_stride);
+ IFPGA_RAWDEV_PMD_DEBUG("descriptor.rd_stride %u", desc->rd_stride);
+ }
+
+ do {
+ status.csr = rte_read32(CSR_STATUS(ctx->csr_addr));
+ if (fpga_queue_full++ > 100000000) {
+ IFPGA_RAWDEV_PMD_DEBUG("DMA queue full retry");
+ fpga_queue_full = 0;
+ }
+ } while (status.desc_buf_full);
+
+ blk_write64((uint64_t *)ctx->desc_addr, (uint64_t *)desc,
+ sizeof(*desc));
+}
+
+static int do_dma(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ int count, int is_last_desc, fpga_dma_type type, int intr_en)
+{
+ msgdma_ext_desc *desc = NULL;
+ int alignment_offset = 0;
+ int segment_size = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ /* src, dst and count must be 64-byte aligned */
+ if (!IS_DMA_ALIGNED(src) || !IS_DMA_ALIGNED(dst) ||
+ !IS_DMA_ALIGNED(count))
+ return -EINVAL;
+ memset(ctx->desc_buf, 0, sizeof(msgdma_ext_desc));
+
+ /* these fields are fixed for all DMA transfers */
+ desc = ctx->desc_buf;
+ desc->seq_num = 0;
+ desc->wr_stride = 1;
+ desc->rd_stride = 1;
+ desc->control.go = 1;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ else
+ desc->control.transfer_irq_en = 0;
+
+ if (!is_last_desc)
+ desc->control.early_done_en = 1;
+ else
+ desc->control.early_done_en = 0;
+
+ if (type == FPGA_TO_FPGA) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ send_descriptor(ctx, desc);
+ } else {
+ /* check CCIP (host) address is aligned to 4CL (256B) */
+ alignment_offset = (type == HOST_TO_FPGA)
+ ? (src % CCIP_ALIGN_BYTES) : (dst % CCIP_ALIGN_BYTES);
+ /* performing a short transfer to get aligned */
+ if (alignment_offset != 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* count isn't large enough to hit next 4CL boundary */
+ if ((CCIP_ALIGN_BYTES - alignment_offset) >= count) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = CCIP_ALIGN_BYTES
+ - alignment_offset;
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ /* post short transfer to align to a 4CL (256 byte) */
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* at this point we are 4CL (256 byte) aligned */
+ if (count >= CCIP_ALIGN_BYTES) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->wr_burst_count = 4;
+ desc->rd_burst_count = 4;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ /* buffer ends on 4CL boundary */
+ if ((count % CCIP_ALIGN_BYTES) == 0) {
+ segment_size = count;
+ count = 0;
+ } else {
+ segment_size = count
+ - (count % CCIP_ALIGN_BYTES);
+ src += segment_size;
+ dst += segment_size;
+ count -= segment_size;
+ desc->control.transfer_irq_en = 0;
+ }
+ desc->len = segment_size;
+ send_descriptor(ctx, desc);
+ }
+ /* post short transfer to handle the remainder */
+ if (count > 0) {
+ desc->rd_address = src & DMA_MASK_32_BIT;
+ desc->wr_address = dst & DMA_MASK_32_BIT;
+ desc->len = count;
+ desc->wr_burst_count = 1;
+ desc->rd_burst_count = 1;
+ desc->rd_address_ext = (src >> 32) & DMA_MASK_32_BIT;
+ desc->wr_address_ext = (dst >> 32) & DMA_MASK_32_BIT;
+ if (intr_en)
+ desc->control.transfer_irq_en = 1;
+ send_descriptor(ctx, desc);
+ }
+ }
+
+ return 0;
+}
+
+static int issue_magic(struct dma_afu_ctx *ctx)
+{
+ *(ctx->magic_buf) = 0ULL;
+ return do_dma(ctx, DMA_WF_HOST_ADDR(ctx->magic_iova),
+ DMA_WF_MAGIC_ROM, 64, 1, FPGA_TO_HOST, 1);
+}
+
+static void wait_magic(struct dma_afu_ctx *ctx)
+{
+ int magic_timeout = 0;
+
+ if (!ctx)
+ return;
+
+ poll_interrupt(ctx);
+ while (*(ctx->magic_buf) != DMA_WF_MAGIC) {
+ if (magic_timeout++ > 1000) {
+ IFPGA_RAWDEV_PMD_ERR("DMA magic operation timeout");
+ magic_timeout = 0;
+ break;
+ }
+ }
+ *(ctx->magic_buf) = 0ULL;
+}
+
+static int dma_tx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, int *intr_issued)
+{
+ int intr_en = 0;
+ int ret = 0;
+
+ if (!ctx || !intr_issued)
+ return -EINVAL;
+
+ src += chunk * ctx->dma_buf_size;
+ dst += chunk * ctx->dma_buf_size;
+
+ if (((chunk % HALF_DMA_BUF) == (HALF_DMA_BUF - 1)) || is_last_chunk) {
+ if (*intr_issued) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+ intr_en = 1;
+ }
+
+ chunk %= NUM_DMA_BUF;
+ rte_memcpy(ctx->dma_buf[chunk], (void *)(uintptr_t)src,
+ ctx->dma_buf_size);
+ ret = do_dma(ctx, dst, DMA_HOST_ADDR(ctx->dma_iova[chunk]),
+ ctx->dma_buf_size, 0, HOST_TO_FPGA, intr_en);
+ if (intr_en)
+ *intr_issued = 1;
+
+ return ret;
+}
+
+static int dma_host_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t dma_tx_bytes = 0;
+ uint64_t offset = 0;
+ int issued_intr = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(dst)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_host_to_fpga(ctx, &dst, &src, count_left);
+
+ aligned_addr = ((dst / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - dst;
+ ret = ase_host_to_fpga(ctx, &dst, &src, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_tx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1), &issued_intr);
+ if (ret)
+ return ret;
+ }
+
+ if (issued_intr) {
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ if (count_left) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_tx_bytes = i * DMA_ALIGN_BYTES;
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_tx_bytes);
+ rte_memcpy(ctx->dma_buf[0],
+ (void *)(uintptr_t)(src + offset),
+ dma_tx_bytes);
+ ret = do_dma(ctx, dst + offset,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ dma_tx_bytes, 1, HOST_TO_FPGA, 1);
+ if (ret)
+ return ret;
+ ret = poll_interrupt(ctx);
+ if (ret)
+ return ret;
+ }
+
+ count_left -= dma_tx_bytes;
+ if (count_left) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_tx_bytes;
+ src += offset + dma_tx_bytes;
+ ret = ase_host_to_fpga(ctx, &dst, &src,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_rx_buf(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ uint64_t chunk, int is_last_chunk, uint64_t *rx_count, int *wf_issued)
+{
+ uint64_t i = chunk % NUM_DMA_BUF;
+ uint64_t n = *rx_count;
+ uint64_t num_pending = 0;
+ int ret = 0;
+
+ if (!ctx || !wf_issued)
+ return -EINVAL;
+
+ ret = do_dma(ctx, DMA_HOST_ADDR(ctx->dma_iova[i]),
+ src + chunk * ctx->dma_buf_size,
+ ctx->dma_buf_size, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+
+ num_pending = chunk - n + 1;
+ if (num_pending == HALF_DMA_BUF) {
+ ret = issue_magic(ctx);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ if ((num_pending > (NUM_DMA_BUF - 1)) || is_last_chunk) {
+ if (*wf_issued) {
+ wait_magic(ctx);
+ for (i = 0; i < HALF_DMA_BUF; i++) {
+ rte_memcpy((void *)(uintptr_t)(dst +
+ n * ctx->dma_buf_size),
+ ctx->dma_buf[n % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ n++;
+ }
+ *wf_issued = 0;
+ *rx_count = n;
+ }
+ ret = issue_magic(ctx);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_DEBUG("Magic issue failed");
+ return ret;
+ }
+ *wf_issued = 1;
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_host(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t aligned_addr = 0;
+ uint64_t align_bytes = 0;
+ uint64_t dma_chunks = 0;
+ uint64_t pending_buf = 0;
+ uint64_t dma_rx_bytes = 0;
+ uint64_t offset = 0;
+ int wf_issued = 0;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (!IS_DMA_ALIGNED(src)) {
+ if (count_left < DMA_ALIGN_BYTES)
+ return ase_fpga_to_host(ctx, &src, &dst, count_left);
+
+ aligned_addr = ((src / DMA_ALIGN_BYTES) + 1)
+ * DMA_ALIGN_BYTES;
+ align_bytes = aligned_addr - src;
+ ret = ase_fpga_to_host(ctx, &src, &dst, align_bytes);
+ if (ret)
+ return ret;
+ count_left = count_left - align_bytes;
+ }
+
+ if (count_left) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = dma_rx_buf(ctx, dst, src, i,
+ i == (dma_chunks - 1),
+ &pending_buf, &wf_issued);
+ if (ret)
+ return ret;
+ }
+
+ if (wf_issued)
+ wait_magic(ctx);
+
+ /* clear out final dma memcpy operations */
+ while (pending_buf < dma_chunks) {
+ /* constant size transfer; no length check required */
+ rte_memcpy((void *)(uintptr_t)(dst +
+ pending_buf * ctx->dma_buf_size),
+ ctx->dma_buf[pending_buf % NUM_DMA_BUF],
+ ctx->dma_buf_size);
+ pending_buf++;
+ }
+
+ if (count_left > 0) {
+ i = count_left / DMA_ALIGN_BYTES;
+ if (i > 0) {
+ dma_rx_bytes = i * DMA_ALIGN_BYTES;
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA",
+ dma_rx_bytes);
+ ret = do_dma(ctx,
+ DMA_HOST_ADDR(ctx->dma_iova[0]),
+ src + offset,
+ dma_rx_bytes, 1, FPGA_TO_HOST, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ rte_memcpy((void *)(uintptr_t)(dst + offset),
+ ctx->dma_buf[0], dma_rx_bytes);
+ }
+
+ count_left -= dma_rx_bytes;
+ if (count_left) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to ASE",
+ count_left);
+ dst += offset + dma_rx_bytes;
+ src += offset + dma_rx_bytes;
+ ret = ase_fpga_to_host(ctx, &src, &dst,
+ count_left);
+ }
+ }
+ }
+
+ return ret;
+}
+
+static int dma_fpga_to_fpga(struct dma_afu_ctx *ctx, uint64_t dst, uint64_t src,
+ size_t count)
+{
+ uint64_t i = 0;
+ uint64_t count_left = count;
+ uint64_t dma_chunks = 0;
+ uint64_t offset = 0;
+ uint32_t tx_chunks = 0;
+ uint64_t *tmp_buf = NULL;
+ int ret = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64" (%zu)", src, dst,
+ count);
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (IS_DMA_ALIGNED(dst) && IS_DMA_ALIGNED(src)
+ && IS_DMA_ALIGNED(count_left)) {
+ dma_chunks = count_left / ctx->dma_buf_size;
+ offset = dma_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" ---> 0x%"PRIx64
+ " (%"PRIu64"...0x%"PRIx64")",
+ src, dst, dma_chunks, count_left);
+ for (i = 0; i < dma_chunks; i++) {
+ ret = do_dma(ctx, dst + i * ctx->dma_buf_size,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size, 0, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ if ((((i + 1) % NUM_DMA_BUF) == 0) ||
+ (i == (dma_chunks - 1))) {
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ }
+
+ if (count_left > 0) {
+ IFPGA_RAWDEV_PMD_DEBUG("left over 0x%"PRIx64" to DMA", count_left);
+ ret = do_dma(ctx, dst + offset, src + offset,
+ count_left, 1, FPGA_TO_FPGA, 0);
+ if (ret)
+ return ret;
+ ret = issue_magic(ctx);
+ if (ret)
+ return ret;
+ wait_magic(ctx);
+ }
+ } else {
+ if ((src < dst) && (src + count_left > dst)) {
+ IFPGA_RAWDEV_PMD_ERR("Overlapping: 0x%"PRIx64
+ " -> 0x%"PRIx64" (0x%"PRIx64")",
+ src, dst, count_left);
+ return -EINVAL;
+ }
+ tx_chunks = count_left / ctx->dma_buf_size;
+ offset = tx_chunks * ctx->dma_buf_size;
+ count_left -= offset;
+ IFPGA_RAWDEV_PMD_DEBUG("0x%"PRIx64" --> 0x%"PRIx64
+ " (%u...0x%"PRIx64")",
+ src, dst, tx_chunks, count_left);
+ tmp_buf = (uint64_t *)rte_malloc(NULL, ctx->dma_buf_size,
+ DMA_ALIGN_BYTES);
+ for (i = 0; i < tx_chunks; i++) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + i * ctx->dma_buf_size,
+ ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx,
+ dst + i * ctx->dma_buf_size,
+ (uint64_t)tmp_buf, ctx->dma_buf_size);
+ if (ret)
+ goto free_buf;
+ }
+
+ if (count_left > 0) {
+ ret = dma_fpga_to_host(ctx, (uint64_t)tmp_buf,
+ src + offset, count_left);
+ if (ret)
+ goto free_buf;
+ ret = dma_host_to_fpga(ctx, dst + offset,
+ (uint64_t)tmp_buf, count_left);
+ if (ret)
+ goto free_buf;
+ }
+free_buf:
+ rte_free(tmp_buf);
+ }
+
+ return ret;
+}
+
+static int dma_transfer_sync(struct dma_afu_ctx *ctx, uint64_t dst,
+ uint64_t src, size_t count, fpga_dma_type type)
+{
+ int ret = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ if (type == HOST_TO_FPGA)
+ ret = dma_host_to_fpga(ctx, dst, src, count);
+ else if (type == FPGA_TO_HOST)
+ ret = dma_fpga_to_host(ctx, dst, src, count);
+ else if (type == FPGA_TO_FPGA)
+ ret = dma_fpga_to_fpga(ctx, dst, src, count);
+ else
+ return -EINVAL;
+
+ return ret;
+}
+
+static double get_duration(struct timespec start, struct timespec end)
+{
+ uint64_t diff = 1000000000L * (end.tv_sec - start.tv_sec)
+ + end.tv_nsec - start.tv_nsec;
+ return (double)diff / (double)1000000000L;
+}
+
+#define SWEEP_ITERS 1
+static int sweep_test(struct dma_afu_ctx *ctx, uint32_t length,
+ uint64_t ddr_offset, uint64_t buf_offset, uint64_t size_decrement)
+{
+ struct timespec start, end;
+ uint64_t test_size = 0;
+ uint64_t *dma_buf_ptr = NULL;
+ double throughput, total_time = 0.0;
+ int i = 0;
+ int ret = 0;
+
+ if (!ctx || !ctx->data_buf || !ctx->ref_buf) {
+ IFPGA_RAWDEV_PMD_ERR("Buffer for DMA test is not allocated");
+ return -EINVAL;
+ }
+
+ if (length < (buf_offset + size_decrement)) {
+ IFPGA_RAWDEV_PMD_ERR("Test length does not match unaligned parameter");
+ return -EINVAL;
+ }
+ test_size = length - (buf_offset + size_decrement);
+ if ((ddr_offset + test_size) > ctx->mem_size) {
+ IFPGA_RAWDEV_PMD_ERR("Test is out of DDR memory space");
+ return -EINVAL;
+ }
+
+ dma_buf_ptr = (uint64_t *)((uint8_t *)ctx->data_buf + buf_offset);
+ printf("Sweep Host %p to FPGA 0x%"PRIx64
+ " with 0x%"PRIx64" bytes ...\n",
+ (void *)dma_buf_ptr, ddr_offset, test_size);
+
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, ddr_offset, (uint64_t)dma_buf_ptr,
+ test_size, HOST_TO_FPGA);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += get_duration(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Sweep FPGA 0x%"PRIx64" to Host %p with 0x%"PRIx64" bytes ...\n",
+ ddr_offset, (void *)dma_buf_ptr, test_size);
+
+ total_time = 0.0;
+ memset((char *)dma_buf_ptr, 0, test_size);
+ for (i = 0; i < SWEEP_ITERS; i++) {
+ clock_gettime(CLOCK_MONOTONIC, &start);
+ ret = dma_transfer_sync(ctx, (uint64_t)dma_buf_ptr, ddr_offset,
+ test_size, FPGA_TO_HOST);
+ clock_gettime(CLOCK_MONOTONIC, &end);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed");
+ return ret;
+ }
+ total_time += get_duration(start, end);
+ }
+ throughput = (test_size * SWEEP_ITERS) / (total_time * 1000000);
+ printf("Measured bandwidth = %lf MB/s\n", throughput);
+
+ printf("Verifying buffer ...\n");
+ return dma_afu_buf_verify(ctx, test_size);
+}
+
+static int dma_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ struct rte_pmd_afu_dma_cfg *cfg = NULL;
+ msgdma_ctrl ctrl;
+ uint64_t offset = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ cfg = &priv->dma_cfg;
+ if (cfg->index >= NUM_N3000_DMA)
+ return -EINVAL;
+ ctx = &priv->dma_ctx[cfg->index];
+
+ ctx->pattern = (int)cfg->pattern;
+ ctx->verbose = (int)cfg->verbose;
+ ctx->dma_buf_size = cfg->size;
+
+ ret = dma_afu_buf_alloc(ctx, cfg);
+ if (ret)
+ goto free;
+
+ printf("Initialize test buffer\n");
+ dma_afu_buf_init(ctx, cfg->length);
+
+ /* enable interrupt */
+ ctrl.csr = 0;
+ ctrl.global_intr_en_mask = 1;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+ printf("Host %p to FPGA 0x%x with 0x%x bytes\n", ctx->data_buf,
+ cfg->offset, cfg->length);
+ ret = dma_transfer_sync(ctx, cfg->offset, (uint64_t)ctx->data_buf,
+ cfg->length, HOST_TO_FPGA);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from host to FPGA");
+ goto end;
+ }
+ memset(ctx->data_buf, 0, cfg->length);
+
+ printf("FPGA 0x%x to Host %p with 0x%x bytes\n", cfg->offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, cfg->offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ if ((cfg->offset + cfg->length * 2) <= ctx->mem_size)
+ offset = cfg->offset + cfg->length;
+ else if (cfg->offset > cfg->length)
+ offset = 0;
+ else
+ goto end;
+
+ printf("FPGA 0x%x to FPGA 0x%"PRIx64" with 0x%x bytes\n",
+ cfg->offset, offset, cfg->length);
+ ret = dma_transfer_sync(ctx, offset, cfg->offset, cfg->length,
+ FPGA_TO_FPGA);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to FPGA");
+ goto end;
+ }
+
+ printf("FPGA 0x%"PRIx64" to Host %p with 0x%x bytes\n", offset,
+ ctx->data_buf, cfg->length);
+ ret = dma_transfer_sync(ctx, (uint64_t)ctx->data_buf, offset,
+ cfg->length, FPGA_TO_HOST);
+ if (ret) {
+ IFPGA_RAWDEV_PMD_ERR("Failed to transfer data from FPGA to host");
+ goto end;
+ }
+ ret = dma_afu_buf_verify(ctx, cfg->length);
+ if (ret)
+ goto end;
+
+ printf("Sweep with aligned address and size\n");
+ ret = sweep_test(ctx, cfg->length, cfg->offset, 0, 0);
+ if (ret)
+ goto end;
+
+ if (cfg->unaligned) {
+ printf("Sweep with unaligned address and size\n");
+ struct unaligned_set {
+ uint64_t addr_offset;
+ uint64_t size_dec;
+ } param[] = {{61, 5}, {3, 0}, {7, 3}, {0, 3}, {0, 61}, {0, 7}};
+ for (i = 0; i < ARRAY_SIZE(param); i++) {
+ ret = sweep_test(ctx, cfg->length, cfg->offset,
+ param[i].addr_offset, param[i].size_dec);
+ if (ret)
+ break;
+ }
+ }
+
+end:
+ /* disable interrupt */
+ ctrl.global_intr_en_mask = 0;
+ rte_write32(ctrl.csr, CSR_CONTROL(ctx->csr_addr));
+
+free:
+ dma_afu_buf_free(ctx);
+ return ret;
+}
+
+static struct rte_pci_device *n3000_afu_get_pci_dev(struct afu_rawdev *dev)
+{
+ struct rte_afu_device *afudev = NULL;
+
+ if (!dev || !dev->rawdev || !dev->rawdev->device)
+ return NULL;
+
+ afudev = RTE_DEV_TO_AFU(dev->rawdev->device);
+ if (!afudev->rawdev || !afudev->rawdev->device)
+ return NULL;
+
+ return RTE_DEV_TO_PCI(afudev->rawdev->device);
+}
+
+#ifdef VFIO_PRESENT
+static int dma_afu_set_irqs(struct afu_rawdev *dev, uint32_t vec_start,
+ uint32_t count, int *efds)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ struct vfio_irq_set *irq_set = NULL;
+ int vfio_dev_fd = 0;
+ size_t sz = 0;
+ int ret = 0;
+
+ if (!dev || !efds || (count == 0) || (count > MAX_MSIX_VEC))
+ return -EINVAL;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return -ENODEV;
+ vfio_dev_fd = rte_intr_dev_fd_get(pci_dev->intr_handle);
+
+ sz = sizeof(*irq_set) + sizeof(*efds) * count;
+ irq_set = rte_zmalloc(NULL, sz, 0);
+ if (!irq_set)
+ return -ENOMEM;
+
+ irq_set->argsz = (uint32_t)sz;
+ irq_set->count = count;
+ irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
+ VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = VFIO_PCI_MSIX_IRQ_INDEX;
+ irq_set->start = vec_start;
+
+ rte_memcpy(&irq_set->data, efds, sizeof(*efds) * count);
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ IFPGA_RAWDEV_PMD_ERR("Error enabling MSI-X interrupts\n");
+
+ rte_free(irq_set);
+ return ret;
+}
+#endif
+
+static void *n3000_afu_get_port_addr(struct afu_rawdev *dev)
+{
+ struct rte_pci_device *pci_dev = NULL;
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint32_t bar = 0;
+
+ pci_dev = n3000_afu_get_pci_dev(dev);
+ if (!pci_dev)
+ return NULL;
+
+ addr = (uint8_t *)pci_dev->mem_resource[0].addr;
+ val = rte_read64(addr + PORT_ATTR_REG(dev->port));
+ if (!PORT_IMPLEMENTED(val)) {
+ IFPGA_RAWDEV_PMD_INFO("FIU port %d is not implemented", dev->port);
+ return NULL;
+ }
+
+ bar = PORT_BAR(val);
+ if (bar >= PCI_MAX_RESOURCE) {
+ IFPGA_RAWDEV_PMD_ERR("BAR index %u is out of limit", bar);
+ return NULL;
+ }
+
+ addr = (uint8_t *)pci_dev->mem_resource[bar].addr + PORT_OFFSET(val);
+ return addr;
+}
+
+static int n3000_afu_get_irq_capability(struct afu_rawdev *dev,
+ uint32_t *vec_start, uint32_t *vec_count)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+ uint64_t header = 0;
+ uint64_t next_offset = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ if ((DFH_TYPE(header) == DFH_TYPE_PRIVATE) &&
+ (DFH_FEATURE_ID(header) == PORT_FEATURE_UINT_ID)) {
+ val = rte_read64(addr + PORT_UINT_CAP_REG);
+ if (vec_start)
+ *vec_start = PORT_VEC_START(val);
+ if (vec_count)
+ *vec_count = PORT_VEC_COUNT(val);
+ return 0;
+ }
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return -ENOENT;
+}
+
+static int nlb_afu_ctx_release(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int nlb_afu_ctx_init(struct afu_rawdev *dev, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct nlb_afu_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->nlb_ctx;
+ ctx->addr = addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr)
+ return -ENOMEM;
+
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dest;
+ }
+
+ ctx->status_ptr = (struct nlb_dsm_status *)(ctx->dsm_ptr + DSM_STATUS);
+ return 0;
+
+release_dest:
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+release_src:
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+release_dsm:
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ return ret;
+}
+
+static int dma_afu_ctx_release(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[0];
+
+ rte_free(ctx->desc_buf);
+ ctx->desc_buf = NULL;
+
+ rte_free(ctx->magic_buf);
+ ctx->magic_buf = NULL;
+
+ close(ctx->event_fd);
+ return 0;
+}
+
+static int dma_afu_ctx_init(struct afu_rawdev *dev, int index, uint8_t *addr)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct dma_afu_ctx *ctx = NULL;
+ uint64_t mem_sz[] = {0x100000000, 0x100000000, 0x40000000, 0x1000000};
+ static int efds[1] = {0};
+ uint32_t vec_start = 0;
+ int ret = 0;
+
+ if (!dev || (index < 0) || (index >= NUM_N3000_DMA) || !addr)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->dma_ctx[index];
+ ctx->index = index;
+ ctx->addr = addr;
+ ctx->csr_addr = addr + DMA_CSR;
+ ctx->desc_addr = addr + DMA_DESC;
+ ctx->ase_ctrl_addr = addr + DMA_ASE_CTRL;
+ ctx->ase_data_addr = addr + DMA_ASE_DATA;
+ ctx->mem_size = mem_sz[ctx->index];
+ ctx->cur_ase_page = INVALID_ASE_PAGE;
+ if (ctx->index == 0) {
+ ret = n3000_afu_get_irq_capability(dev, &vec_start, NULL);
+ if (ret)
+ return ret;
+
+ efds[0] = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (efds[0] < 0) {
+ IFPGA_RAWDEV_PMD_ERR("eventfd create failed");
+ return -EBADF;
+ }
+#ifdef VFIO_PRESENT
+ if (dma_afu_set_irqs(dev, vec_start, 1, efds))
+ IFPGA_RAWDEV_PMD_ERR("DMA interrupt setup failed");
+#endif
+ }
+ ctx->event_fd = efds[0];
+
+ ctx->desc_buf = (msgdma_ext_desc *)rte_zmalloc(NULL,
+ sizeof(msgdma_ext_desc), DMA_ALIGN_BYTES);
+ if (!ctx->desc_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ ctx->magic_buf = (uint64_t *)rte_zmalloc(NULL, MAGIC_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->magic_buf) {
+ ret = -ENOMEM;
+ goto release;
+ }
+ ctx->magic_iova = rte_malloc_virt2iova(ctx->magic_buf);
+ if (ctx->magic_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release;
+ }
+
+ return 0;
+
+release:
+ dma_afu_ctx_release(dev);
+ return ret;
+}
+
+static int n3000_afu_ctx_init(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ uint8_t *addr = NULL;
+ uint64_t header = 0;
+ uint64_t uuid_hi = 0;
+ uint64_t uuid_lo = 0;
+ uint64_t next_offset = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ addr = (uint8_t *)dev->addr;
+ do {
+ addr += next_offset;
+ header = rte_read64(addr);
+ uuid_lo = rte_read64(addr + DFH_UUID_L_OFFSET);
+ uuid_hi = rte_read64(addr + DFH_UUID_H_OFFSET);
+
+ if ((DFH_TYPE(header) == DFH_TYPE_AFU) &&
+ (uuid_lo == N3000_NLB0_UUID_L) &&
+ (uuid_hi == N3000_NLB0_UUID_H)) {
+ IFPGA_RAWDEV_PMD_INFO("AFU NLB0 found @ %p", (void *)addr);
+ ret = nlb_afu_ctx_init(dev, addr);
+ if (ret)
+ return ret;
+ } else if ((DFH_TYPE(header) == DFH_TYPE_BBB) &&
+ (uuid_lo == N3000_DMA_UUID_L) &&
+ (uuid_hi == N3000_DMA_UUID_H) &&
+ (priv->num_dma < NUM_N3000_DMA)) {
+ IFPGA_RAWDEV_PMD_INFO("AFU DMA%d found @ %p",
+ priv->num_dma, (void *)addr);
+ ret = dma_afu_ctx_init(dev, priv->num_dma, addr);
+ if (ret)
+ return ret;
+ priv->num_dma++;
+ } else {
+ IFPGA_RAWDEV_PMD_DEBUG("DFH: type %"PRIu64
+ ", uuid %016"PRIx64"%016"PRIx64,
+ DFH_TYPE(header), uuid_hi, uuid_lo);
+ }
+
+ next_offset = DFH_NEXT_OFFSET(header);
+ if (((next_offset & 0xffff) == 0xffff) || (next_offset == 0))
+ break;
+ } while (!DFH_EOL(header));
+
+ return 0;
+}
+
+static int n3000_afu_init(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct n3000_afu_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return n3000_afu_ctx_init(dev);
+}
+
+static int n3000_afu_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct n3000_afu_priv *priv = NULL;
+ struct rte_pmd_afu_n3000_cfg *cfg = NULL;
+ int i = 0;
+ uint64_t top = 0;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_n3000_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_n3000_cfg *)config;
+ if (cfg->type == RTE_PMD_AFU_N3000_NLB) {
+ if (cfg->nlb_cfg.mode != NLB_MODE_LPBK)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.read_vc > NLB_VC_RANDOM) ||
+ (cfg->nlb_cfg.write_vc > NLB_VC_RANDOM))
+ return -EINVAL;
+ if (cfg->nlb_cfg.wrfence_vc > NLB_VC_VH1)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_hint > NLB_RDLINE_MIXED)
+ return -EINVAL;
+ if (cfg->nlb_cfg.cache_policy > NLB_WRPUSH_I)
+ return -EINVAL;
+ if ((cfg->nlb_cfg.multi_cl != 1) &&
+ (cfg->nlb_cfg.multi_cl != 2) &&
+ (cfg->nlb_cfg.multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.begin < MIN_CACHE_LINES) ||
+ (cfg->nlb_cfg.begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->nlb_cfg.end < cfg->nlb_cfg.begin) ||
+ (cfg->nlb_cfg.end > MAX_CACHE_LINES))
+ return -EINVAL;
+ rte_memcpy(&priv->nlb_cfg, &cfg->nlb_cfg,
+ sizeof(struct rte_pmd_afu_nlb_cfg));
+ } else if (cfg->type == RTE_PMD_AFU_N3000_DMA) {
+ if (cfg->dma_cfg.index >= NUM_N3000_DMA)
+ return -EINVAL;
+ i = cfg->dma_cfg.index;
+ if (cfg->dma_cfg.length > priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ if (cfg->dma_cfg.offset >= priv->dma_ctx[i].mem_size)
+ return -EINVAL;
+ top = cfg->dma_cfg.length + cfg->dma_cfg.offset;
+ if ((top == 0) || (top > priv->dma_ctx[i].mem_size))
+ return -EINVAL;
+ if (i == 3) { /* QDR connected to DMA3 */
+ if (cfg->dma_cfg.length & 0x3f) {
+ cfg->dma_cfg.length &= ~0x3f;
+ IFPGA_RAWDEV_PMD_INFO("Round size to %x for QDR",
+ cfg->dma_cfg.length);
+ }
+ }
+ rte_memcpy(&priv->dma_cfg, &cfg->dma_cfg,
+ sizeof(struct rte_pmd_afu_dma_cfg));
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Invalid type of N3000 AFU");
+ return -EINVAL;
+ }
+
+ priv->cfg_type = cfg->type;
+ return 0;
+}
+
+static int n3000_afu_test(struct afu_rawdev *dev)
+{
+ struct n3000_afu_priv *priv = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv)
+ return -ENOENT;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ IFPGA_RAWDEV_PMD_INFO("Test NLB");
+ ret = nlb_afu_test(dev);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ IFPGA_RAWDEV_PMD_INFO("Test DMA%u", priv->dma_cfg.index);
+ ret = dma_afu_test(dev);
+ } else {
+ IFPGA_RAWDEV_PMD_ERR("Please configure AFU before test");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int n3000_afu_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ nlb_afu_ctx_release(dev);
+ dma_afu_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int n3000_afu_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct n3000_afu_priv *priv = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct n3000_afu_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ if (priv->cfg_type == RTE_PMD_AFU_N3000_NLB) {
+ struct nlb_afu_ctx *ctx = &priv->nlb_ctx;
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+ } else if (priv->cfg_type == RTE_PMD_AFU_N3000_DMA) {
+ struct dma_afu_ctx *ctx = &priv->dma_ctx[priv->dma_cfg.index];
+ fprintf(f, "index:\t\t%d\n", ctx->index);
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "csr_addr:\t%p\n", (void *)ctx->csr_addr);
+ fprintf(f, "desc_addr:\t%p\n", (void *)ctx->desc_addr);
+ fprintf(f, "ase_ctrl_addr:\t%p\n", (void *)ctx->ase_ctrl_addr);
+ fprintf(f, "ase_data_addr:\t%p\n", (void *)ctx->ase_data_addr);
+ fprintf(f, "desc_buf:\t%p\n", (void *)ctx->desc_buf);
+ fprintf(f, "magic_buf:\t%p\n", (void *)ctx->magic_buf);
+ fprintf(f, "magic_iova:\t0x%"PRIx64"\n", ctx->magic_iova);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int n3000_afu_reset(struct afu_rawdev *dev)
+{
+ uint8_t *addr = NULL;
+ uint64_t val = 0;
+
+ addr = (uint8_t *)n3000_afu_get_port_addr(dev);
+ if (!addr)
+ return -ENOENT;
+
+ val = rte_read64(addr + PORT_CTRL_REG);
+ val |= PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+ rte_delay_us(100);
+ val &= ~PORT_SOFT_RESET;
+ rte_write64(val, addr + PORT_CTRL_REG);
+
+ return 0;
+}
+
+static struct afu_ops n3000_afu_ops = {
+ .init = n3000_afu_init,
+ .config = n3000_afu_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = n3000_afu_test,
+ .close = n3000_afu_close,
+ .dump = n3000_afu_dump,
+ .reset = n3000_afu_reset
+};
+
+static struct afu_rawdev_drv n3000_afu_drv = {
+ .uuid = { N3000_AFU_UUID_L, N3000_AFU_UUID_H },
+ .ops = &n3000_afu_ops
+};
+
+AFU_PMD_REGISTER(n3000_afu_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_n3000.h b/drivers/raw/ifpga/afu_pmd_n3000.h
new file mode 100644
index 0000000..67e83fe
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_n3000.h
@@ -0,0 +1,339 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_N3000_H_
+#define _AFU_PMD_N3000_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define N3000_AFU_UUID_L 0xc000c9660d824272
+#define N3000_AFU_UUID_H 0x9aeffe5f84570612
+#define N3000_NLB0_UUID_L 0xf89e433683f9040b
+#define N3000_NLB0_UUID_H 0xd8424dc4a4a3c413
+#define N3000_DMA_UUID_L 0xa9149a35bace01ea
+#define N3000_DMA_UUID_H 0xef82def7f6ec40fc
+
+#define NUM_N3000_DMA 4
+#define MAX_MSIX_VEC 7
+
+/* N3000 DFL definition */
+#define DFH_UUID_L_OFFSET 8
+#define DFH_UUID_H_OFFSET 16
+#define DFH_TYPE(hdr) (((hdr) >> 60) & 0xf)
+#define DFH_TYPE_AFU 1
+#define DFH_TYPE_BBB 2
+#define DFH_TYPE_PRIVATE 3
+#define DFH_EOL(hdr) (((hdr) >> 40) & 0x1)
+#define DFH_NEXT_OFFSET(hdr) (((hdr) >> 16) & 0xffffff)
+#define DFH_FEATURE_ID(hdr) ((hdr) & 0xfff)
+#define PORT_ATTR_REG(n) (((n) << 3) + 0x38)
+#define PORT_IMPLEMENTED(attr) (((attr) >> 60) & 0x1)
+#define PORT_BAR(attr) (((attr) >> 32) & 0x7)
+#define PORT_OFFSET(attr) ((attr) & 0xffffff)
+#define PORT_FEATURE_UINT_ID 0x12
+#define PORT_UINT_CAP_REG 0x8
+#define PORT_VEC_START(cap) (((cap) >> 12) & 0xfff)
+#define PORT_VEC_COUNT(cap) ((cap) >> 12 & 0xfff)
+#define PORT_CTRL_REG 0x38
+#define PORT_SOFT_RESET (0x1 << 0)
+
+/* NLB registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_STATUS 0x40
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct nlb_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct nlb_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t wrthru_en:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd1:1;
+ uint32_t delay_en:1;
+ uint32_t rdsel:2;
+ uint32_t rsvd2:1;
+ uint32_t chsel:3;
+ uint32_t rsvd3:1;
+ uint32_t wrpush_i:1;
+ uint32_t wr_chsel:3;
+ uint32_t rsvd4:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t wrfence_chsel:2;
+ };
+ };
+};
+
+struct nlb_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct nlb_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct nlb_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+/* DMA registers definition */
+#define DMA_CSR 0x40
+#define DMA_DESC 0x60
+#define DMA_ASE_CTRL 0x200
+#define DMA_ASE_DATA 0x1000
+
+#define DMA_ASE_WINDOW 4096
+#define DMA_ASE_WINDOW_MASK ((uint64_t)(DMA_ASE_WINDOW - 1))
+#define INVALID_ASE_PAGE 0xffffffffffffffffULL
+
+#define DMA_WF_MAGIC 0x5772745F53796E63ULL
+#define DMA_WF_MAGIC_ROM 0x1000000000000
+#define DMA_HOST_ADDR(addr) ((addr) | 0x2000000000000)
+#define DMA_WF_HOST_ADDR(addr) ((addr) | 0x3000000000000)
+
+#define NUM_DMA_BUF 8
+#define HALF_DMA_BUF (NUM_DMA_BUF / 2)
+
+#define DMA_MASK_32_BIT 0xFFFFFFFF
+
+#define DMA_CSR_BUSY 0x1
+#define DMA_DESC_BUFFER_EMPTY 0x2
+#define DMA_DESC_BUFFER_FULL 0x4
+
+#define DWORD_BYTES 4
+#define IS_ALIGNED_DWORD(addr) (((addr) % DWORD_BYTES) == 0)
+
+#define QWORD_BYTES 8
+#define IS_ALIGNED_QWORD(addr) (((addr) % QWORD_BYTES) == 0)
+
+#define DMA_ALIGN_BYTES 64
+#define IS_DMA_ALIGNED(addr) (((addr) % DMA_ALIGN_BYTES) == 0)
+
+#define CCIP_ALIGN_BYTES (DMA_ALIGN_BYTES << 2)
+
+#define DMA_TIMEOUT_MSEC 5000
+
+#define MAGIC_BUF_SIZE 64
+#define ERR_CHECK_LIMIT 64
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+typedef enum {
+ HOST_TO_FPGA = 0,
+ FPGA_TO_HOST,
+ FPGA_TO_FPGA,
+ FPGA_MAX_TRANSFER_TYPE,
+} fpga_dma_type;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t tx_channel:8;
+ uint32_t generate_sop:1;
+ uint32_t generate_eop:1;
+ uint32_t park_reads:1;
+ uint32_t park_writes:1;
+ uint32_t end_on_eop:1;
+ uint32_t reserved_1:1;
+ uint32_t transfer_irq_en:1;
+ uint32_t early_term_irq_en:1;
+ uint32_t trans_error_irq_en:8;
+ uint32_t early_done_en:1;
+ uint32_t reserved_2:6;
+ uint32_t go:1;
+ };
+} msgdma_desc_ctrl;
+
+typedef struct __rte_packed {
+ uint32_t rd_address;
+ uint32_t wr_address;
+ uint32_t len;
+ uint16_t seq_num;
+ uint8_t rd_burst_count;
+ uint8_t wr_burst_count;
+ uint16_t rd_stride;
+ uint16_t wr_stride;
+ uint32_t rd_address_ext;
+ uint32_t wr_address_ext;
+ msgdma_desc_ctrl control;
+} msgdma_ext_desc;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t busy:1;
+ uint32_t desc_buf_empty:1;
+ uint32_t desc_buf_full:1;
+ uint32_t rsp_buf_empty:1;
+ uint32_t rsp_buf_full:1;
+ uint32_t stopped:1;
+ uint32_t resetting:1;
+ uint32_t stopped_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t irq:1;
+ uint32_t reserved:22;
+ };
+} msgdma_status;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t stop_dispatcher:1;
+ uint32_t reset_dispatcher:1;
+ uint32_t stop_on_error:1;
+ uint32_t stopped_on_early_term:1;
+ uint32_t global_intr_en_mask:1;
+ uint32_t stop_descriptors:1;
+ uint32_t reserved:22;
+ };
+} msgdma_ctrl;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_fill_level:16;
+ uint32_t wr_fill_level:16;
+ };
+} msgdma_fill_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rsp_fill_level:16;
+ uint32_t reserved:16;
+ };
+} msgdma_rsp_level;
+
+typedef union {
+ uint32_t csr;
+ struct {
+ uint32_t rd_seq_num:16;
+ uint32_t wr_seq_num:16;
+ };
+} msgdma_seq_num;
+
+typedef struct __rte_packed {
+ msgdma_status status;
+ msgdma_ctrl ctrl;
+ msgdma_fill_level fill_level;
+ msgdma_rsp_level rsp;
+ msgdma_seq_num seq_num;
+} msgdma_csr;
+
+#define CSR_STATUS(csr) (&(((msgdma_csr *)(csr))->status))
+#define CSR_CONTROL(csr) (&(((msgdma_csr *)(csr))->ctrl))
+
+struct nlb_afu_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct nlb_dsm_status *status_ptr;
+};
+
+struct dma_afu_ctx {
+ int index;
+ uint8_t *addr;
+ uint8_t *csr_addr;
+ uint8_t *desc_addr;
+ uint8_t *ase_ctrl_addr;
+ uint8_t *ase_data_addr;
+ uint64_t mem_size;
+ uint64_t cur_ase_page;
+ int event_fd;
+ int verbose;
+ int pattern;
+ void *data_buf;
+ void *ref_buf;
+ msgdma_ext_desc *desc_buf;
+ uint64_t *magic_buf;
+ uint64_t magic_iova;
+ uint32_t dma_buf_size;
+ uint64_t *dma_buf[NUM_DMA_BUF];
+ uint64_t dma_iova[NUM_DMA_BUF];
+};
+
+struct n3000_afu_priv {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ struct nlb_afu_ctx nlb_ctx;
+ struct dma_afu_ctx dma_ctx[NUM_N3000_DMA];
+ int num_dma;
+ int cfg_type;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_N3000_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index d9a6f29..2294ab5 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -13,7 +13,8 @@ objs = [base_objs]
deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
-sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c')
+sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
+ 'afu_pmd_n3000.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
new file mode 100644
index 0000000..f14a053
--- /dev/null
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2022 Intel Corporation
+ */
+
+#ifndef __RTE_PMD_AFU_H__
+#define __RTE_PMD_AFU_H__
+
+/**
+ * @file rte_pmd_afu.h
+ *
+ * AFU PMD specific definitions.
+ *
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#define RTE_PMD_AFU_N3000_NLB 1
+#define RTE_PMD_AFU_N3000_DMA 2
+
+#define NLB_MODE_LPBK 0
+#define NLB_MODE_READ 1
+#define NLB_MODE_WRITE 2
+#define NLB_MODE_TRPUT 3
+
+#define NLB_VC_AUTO 0
+#define NLB_VC_VL0 1
+#define NLB_VC_VH0 2
+#define NLB_VC_VH1 3
+#define NLB_VC_RANDOM 4
+
+#define NLB_WRLINE_M 0
+#define NLB_WRLINE_I 1
+#define NLB_WRPUSH_I 2
+
+#define NLB_RDLINE_S 0
+#define NLB_RDLINE_I 1
+#define NLB_RDLINE_MIXED 2
+
+#define MIN_CACHE_LINES 1
+#define MAX_CACHE_LINES 1024
+
+#define MIN_DMA_BUF_SIZE 64
+#define MAX_DMA_BUF_SIZE (1023 * 1024)
+
+/**
+ * NLB AFU configuration data structure.
+ */
+struct rte_pmd_afu_nlb_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t cache_policy;
+ uint32_t cache_hint;
+ uint32_t read_vc;
+ uint32_t write_vc;
+ uint32_t wrfence_vc;
+ uint32_t freq_mhz;
+};
+
+/**
+ * DMA AFU configuration data structure.
+ */
+struct rte_pmd_afu_dma_cfg {
+ uint32_t index; /* index of DMA controller */
+ uint32_t length; /* total length of data to DMA */
+ uint32_t offset; /* address offset of target memory */
+ uint32_t size; /* size of transfer buffer */
+ uint32_t pattern; /* data pattern to fill in test buffer */
+ uint32_t unaligned; /* use unaligned address or length in sweep test */
+ uint32_t verbose; /* enable verbose error information in test */
+};
+
+/**
+ * N3000 AFU configuration data structure.
+ */
+struct rte_pmd_afu_n3000_cfg {
+ int type; /* RTE_PMD_AFU_N3000_NLB or RTE_PMD_AFU_N3000_DMA */
+ union {
+ struct rte_pmd_afu_nlb_cfg nlb_cfg;
+ struct rte_pmd_afu_dma_cfg dma_cfg;
+ };
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __RTE_PMD_AFU_H__ */
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v8 3/5] raw/ifpga: add HE-LPBK AFU driver
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-16 3:00 ` [PATCH v8 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
2022-06-16 3:00 ` [PATCH v8 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
@ 2022-06-16 3:00 ` Wei Huang
2022-06-16 3:00 ` [PATCH v8 4/5] raw/ifpga: add HE-MEM " Wei Huang
` (2 subsequent siblings)
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-16 3:00 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-LPBK and HE-MEM-LPBK are host exerciser modules in OFS FPGA,
HE-LPBK is used to test PCI bus and HE-MEM-LPBK is used to test
local memory.
This driver initialize the modules and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
---
v2: move source files to ifpga and rename, refine code
---
drivers/raw/ifpga/afu_pmd_he_lpbk.c | 436 ++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_lpbk.h | 126 +++++++++++
drivers/raw/ifpga/meson.build | 2 +-
drivers/raw/ifpga/rte_pmd_afu.h | 14 ++
4 files changed, 577 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_lpbk.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.c b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
new file mode 100644
index 0000000..8b2c85b
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.c
@@ -0,0 +1,436 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_lpbk.h"
+
+static int he_lpbk_afu_config(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_csr_cfg v;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lpbk_cfg;
+
+ v.csr = 0;
+
+ if (cfg->cont)
+ v.cont = 1;
+
+ v.mode = cfg->mode;
+ v.trput_interleave = cfg->trput_interleave;
+ if (cfg->multi_cl == 4)
+ v.multicl_len = 2;
+ else
+ v.multicl_len = cfg->multi_cl - 1;
+
+ IFPGA_RAWDEV_PMD_DEBUG("cfg: 0x%08x", v.csr);
+ rte_write32(v.csr, priv->he_lpbk_ctx.addr + CSR_CFG);
+
+ return 0;
+}
+
+static void he_lpbk_report(struct afu_rawdev *dev, uint32_t cl)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ struct he_lpbk_dsm_status *stat = NULL;
+ struct he_lpbk_status0 stat0;
+ struct he_lpbk_status1 stat1;
+ uint64_t swtest_msg = 0;
+ uint64_t ticks = 0;
+ uint64_t info = 0;
+ double num, rd_bw, wr_bw;
+
+ if (!dev || !dev->priv)
+ return;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ cfg = &priv->he_lpbk_cfg;
+ ctx = &priv->he_lpbk_ctx;
+
+ stat = ctx->status_ptr;
+
+ swtest_msg = rte_read64(ctx->addr + CSR_SWTEST_MSG);
+ stat0.csr = rte_read64(ctx->addr + CSR_STATUS0);
+ stat1.csr = rte_read64(ctx->addr + CSR_STATUS1);
+
+ if (cfg->cont)
+ ticks = stat->num_clocks - stat->start_overhead;
+ else
+ ticks = stat->num_clocks -
+ (stat->start_overhead + stat->end_overhead);
+
+ if (cfg->freq_mhz == 0) {
+ info = rte_read64(ctx->addr + CSR_HE_INFO0);
+ IFPGA_RAWDEV_PMD_INFO("API version: %"PRIx64, info >> 16);
+ cfg->freq_mhz = info & 0xffff;
+ if (cfg->freq_mhz == 0) {
+ IFPGA_RAWDEV_PMD_INFO("Frequency of AFU clock is unknown."
+ " Assuming 350 MHz.");
+ cfg->freq_mhz = 350;
+ }
+ }
+
+ num = (double)stat0.num_reads;
+ rd_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+ num = (double)stat0.num_writes;
+ wr_bw = (num * CLS_TO_SIZE(1) * MHZ(cfg->freq_mhz)) / ticks;
+
+ printf("Cachelines Read_Count Write_Count Pend_Read Pend_Write "
+ "Clocks@%uMHz Rd_Bandwidth Wr_Bandwidth\n",
+ cfg->freq_mhz);
+ printf("%10u %10u %10u %10u %10u %12"PRIu64
+ " %7.3f GB/s %7.3f GB/s\n",
+ cl, stat0.num_reads, stat0.num_writes,
+ stat1.num_pend_reads, stat1.num_pend_writes,
+ ticks, rd_bw / 1e9, wr_bw / 1e9);
+ printf("Test Message: 0x%"PRIx64"\n", swtest_msg);
+}
+
+static int he_lpbk_test(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ struct he_lpbk_csr_ctl ctl;
+ uint32_t *ptr = NULL;
+ uint32_t i, j, cl, val = 0;
+ uint64_t sval = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_lpbk_cfg;
+ ctx = &priv->he_lpbk_ctx;
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ /* initialize DMA addresses */
+ IFPGA_RAWDEV_PMD_DEBUG("src_addr: 0x%"PRIx64, ctx->src_iova);
+ rte_write64(SIZE_TO_CLS(ctx->src_iova), ctx->addr + CSR_SRC_ADDR);
+
+ IFPGA_RAWDEV_PMD_DEBUG("dst_addr: 0x%"PRIx64, ctx->dest_iova);
+ rte_write64(SIZE_TO_CLS(ctx->dest_iova), ctx->addr + CSR_DST_ADDR);
+
+ IFPGA_RAWDEV_PMD_DEBUG("dsm_addr: 0x%"PRIx64, ctx->dsm_iova);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova), ctx->addr + CSR_AFU_DSM_BASEL);
+ rte_write32(SIZE_TO_CLS(ctx->dsm_iova) >> 32,
+ ctx->addr + CSR_AFU_DSM_BASEH);
+
+ ret = he_lpbk_afu_config(dev);
+ if (ret)
+ return ret;
+
+ /* initialize src data */
+ ptr = (uint32_t *)ctx->src_ptr;
+ j = CLS_TO_SIZE(cfg->end) >> 2;
+ for (i = 0; i < j; i++)
+ *ptr++ = i;
+
+ /* start test */
+ for (cl = cfg->begin; cl <= cfg->end; cl += cfg->multi_cl) {
+ memset(ctx->dest_ptr, 0, CLS_TO_SIZE(cl));
+ memset(ctx->dsm_ptr, 0, DSM_SIZE);
+
+ ctl.csr = 0;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ rte_delay_us(1000);
+ ctl.reset = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ rte_write32(cl - 1, ctx->addr + CSR_NUM_LINES);
+
+ ctl.start = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+
+ if (cfg->cont) {
+ rte_delay_ms(cfg->timeout * 1000);
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ } else {
+ ret = dsm_poll_timeout(&ctx->status_ptr->test_complete,
+ val, (val & 0x1) == 1, DSM_POLL_INTERVAL,
+ DSM_TIMEOUT);
+ if (ret) {
+ printf("DSM poll timeout\n");
+ goto end;
+ }
+ ctl.force_completion = 1;
+ rte_write32(ctl.csr, ctx->addr + CSR_CTL);
+ }
+
+ he_lpbk_report(dev, cl);
+
+ i = 0;
+ while (i++ < 100) {
+ sval = rte_read64(ctx->addr + CSR_STATUS1);
+ if (sval == 0)
+ break;
+ rte_delay_us(1000);
+ }
+
+ if (cfg->mode == NLB_MODE_LPBK) {
+ ptr = (uint32_t *)ctx->dest_ptr;
+ j = CLS_TO_SIZE(cl) >> 2;
+ for (i = 0; i < j; i++) {
+ if (*ptr++ != i) {
+ IFPGA_RAWDEV_PMD_ERR("Data mismatch @ %u", i);
+ break;
+ }
+ }
+ }
+ }
+
+end:
+ return 0;
+}
+
+static int he_lpbk_ctx_release(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lpbk_ctx;
+
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ ctx->status_ptr = NULL;
+
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+
+ return 0;
+}
+
+static int he_lpbk_ctx_init(struct afu_rawdev *dev)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ ctx = &priv->he_lpbk_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ ctx->dsm_ptr = (uint8_t *)rte_zmalloc(NULL, DSM_SIZE, TEST_MEM_ALIGN);
+ if (!ctx->dsm_ptr)
+ return -ENOMEM;
+ ctx->dsm_iova = rte_malloc_virt2iova(ctx->dsm_ptr);
+ if (ctx->dsm_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+
+ ctx->src_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->src_ptr) {
+ ret = -ENOMEM;
+ goto release_dsm;
+ }
+ ctx->src_iova = rte_malloc_virt2iova(ctx->src_ptr);
+ if (ctx->src_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+
+ ctx->dest_ptr = (uint8_t *)rte_zmalloc(NULL, NLB_BUF_SIZE,
+ TEST_MEM_ALIGN);
+ if (!ctx->dest_ptr) {
+ ret = -ENOMEM;
+ goto release_src;
+ }
+ ctx->dest_iova = rte_malloc_virt2iova(ctx->dest_ptr);
+ if (ctx->dest_iova == RTE_BAD_IOVA) {
+ ret = -ENOMEM;
+ goto release_dest;
+ }
+
+ ctx->status_ptr = (struct he_lpbk_dsm_status *)ctx->dsm_ptr;
+ return 0;
+
+release_dest:
+ rte_free(ctx->dest_ptr);
+ ctx->dest_ptr = NULL;
+release_src:
+ rte_free(ctx->src_ptr);
+ ctx->src_ptr = NULL;
+release_dsm:
+ rte_free(ctx->dsm_ptr);
+ ctx->dsm_ptr = NULL;
+ return ret;
+}
+
+static int he_lpbk_init(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ if (!dev->priv) {
+ dev->priv = rte_zmalloc(NULL, sizeof(struct he_lpbk_priv), 0);
+ if (!dev->priv)
+ return -ENOMEM;
+ }
+
+ return he_lpbk_ctx_init(dev);
+}
+
+static int he_lpbk_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct rte_pmd_afu_he_lpbk_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_lpbk_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_lpbk_cfg *)config;
+ if (cfg->mode > NLB_MODE_TRPUT)
+ return -EINVAL;
+ if ((cfg->multi_cl != 1) && (cfg->multi_cl != 2) &&
+ (cfg->multi_cl != 4))
+ return -EINVAL;
+ if ((cfg->begin < MIN_CACHE_LINES) || (cfg->begin > MAX_CACHE_LINES))
+ return -EINVAL;
+ if ((cfg->end < cfg->begin) || (cfg->end > MAX_CACHE_LINES))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_lpbk_cfg, cfg, sizeof(priv->he_lpbk_cfg));
+
+ return 0;
+}
+
+static int he_lpbk_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ he_lpbk_ctx_release(dev);
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_lpbk_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_lpbk_priv *priv = NULL;
+ struct he_lpbk_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_lpbk_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_lpbk_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+ fprintf(f, "dsm_ptr:\t%p\n", (void *)ctx->dsm_ptr);
+ fprintf(f, "dsm_iova:\t0x%"PRIx64"\n", ctx->dsm_iova);
+ fprintf(f, "src_ptr:\t%p\n", (void *)ctx->src_ptr);
+ fprintf(f, "src_iova:\t0x%"PRIx64"\n", ctx->src_iova);
+ fprintf(f, "dest_ptr:\t%p\n", (void *)ctx->dest_ptr);
+ fprintf(f, "dest_iova:\t0x%"PRIx64"\n", ctx->dest_iova);
+ fprintf(f, "status_ptr:\t%p\n", (void *)ctx->status_ptr);
+
+ return 0;
+}
+
+static struct afu_ops he_lpbk_ops = {
+ .init = he_lpbk_init,
+ .config = he_lpbk_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_lpbk_test,
+ .close = he_lpbk_close,
+ .dump = he_lpbk_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_lpbk_drv = {
+ .uuid = { HE_LPBK_UUID_L, HE_LPBK_UUID_H },
+ .ops = &he_lpbk_ops
+};
+
+AFU_PMD_REGISTER(he_lpbk_drv);
+
+struct afu_rawdev_drv he_mem_lpbk_drv = {
+ .uuid = { HE_MEM_LPBK_UUID_L, HE_MEM_LPBK_UUID_H },
+ .ops = &he_lpbk_ops
+};
+
+AFU_PMD_REGISTER(he_mem_lpbk_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_lpbk.h b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
new file mode 100644
index 0000000..5ad6aa8
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_lpbk.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_LPBK_H_
+#define _AFU_PMD_HE_LPBK_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_LPBK_UUID_L 0xb94b12284c31e02b
+#define HE_LPBK_UUID_H 0x56e203e9864f49a7
+#define HE_MEM_LPBK_UUID_L 0xbb652a578330a8eb
+#define HE_MEM_LPBK_UUID_H 0x8568ab4e6ba54616
+
+/* HE-LBK & HE-MEM-LBK registers definition */
+#define CSR_SCRATCHPAD0 0x100
+#define CSR_SCRATCHPAD1 0x108
+#define CSR_AFU_DSM_BASEL 0x110
+#define CSR_AFU_DSM_BASEH 0x114
+#define CSR_SRC_ADDR 0x120
+#define CSR_DST_ADDR 0x128
+#define CSR_NUM_LINES 0x130
+#define CSR_CTL 0x138
+#define CSR_CFG 0x140
+#define CSR_INACT_THRESH 0x148
+#define CSR_INTERRUPT0 0x150
+#define CSR_SWTEST_MSG 0x158
+#define CSR_STATUS0 0x160
+#define CSR_STATUS1 0x168
+#define CSR_ERROR 0x170
+#define CSR_STRIDE 0x178
+#define CSR_HE_INFO0 0x180
+
+#define DSM_SIZE 0x200000
+#define DSM_POLL_INTERVAL 5 /* ms */
+#define DSM_TIMEOUT 1000 /* ms */
+
+#define NLB_BUF_SIZE 0x400000
+#define TEST_MEM_ALIGN 1024
+
+struct he_lpbk_csr_ctl {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t reset:1;
+ uint32_t start:1;
+ uint32_t force_completion:1;
+ uint32_t reserved:29;
+ };
+ };
+};
+
+struct he_lpbk_csr_cfg {
+ union {
+ uint32_t csr;
+ struct {
+ uint32_t rsvd1:1;
+ uint32_t cont:1;
+ uint32_t mode:3;
+ uint32_t multicl_len:2;
+ uint32_t rsvd2:13;
+ uint32_t trput_interleave:3;
+ uint32_t test_cfg:5;
+ uint32_t interrupt_on_error:1;
+ uint32_t interrupt_testmode:1;
+ uint32_t rsvd3:2;
+ };
+ };
+};
+
+struct he_lpbk_status0 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_writes;
+ uint32_t num_reads;
+ };
+ };
+};
+
+struct he_lpbk_status1 {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t num_pend_writes;
+ uint32_t num_pend_reads;
+ };
+ };
+};
+
+struct he_lpbk_dsm_status {
+ uint32_t test_complete;
+ uint32_t test_error;
+ uint64_t num_clocks;
+ uint32_t num_reads;
+ uint32_t num_writes;
+ uint32_t start_overhead;
+ uint32_t end_overhead;
+};
+
+struct he_lpbk_ctx {
+ uint8_t *addr;
+ uint8_t *dsm_ptr;
+ uint64_t dsm_iova;
+ uint8_t *src_ptr;
+ uint64_t src_iova;
+ uint8_t *dest_ptr;
+ uint64_t dest_iova;
+ struct he_lpbk_dsm_status *status_ptr;
+};
+
+struct he_lpbk_priv {
+ struct rte_pmd_afu_he_lpbk_cfg he_lpbk_cfg;
+ struct he_lpbk_ctx he_lpbk_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_LPBK_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index 2294ab5..629ff8a 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index f14a053..19b3902 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -90,6 +90,20 @@ struct rte_pmd_afu_n3000_cfg {
};
};
+/**
+ * HE-LPBK & HE-MEM-LPBK AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_lpbk_cfg {
+ uint32_t mode;
+ uint32_t begin;
+ uint32_t end;
+ uint32_t multi_cl;
+ uint32_t cont;
+ uint32_t timeout;
+ uint32_t trput_interleave;
+ uint32_t freq_mhz;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v8 4/5] raw/ifpga: add HE-MEM AFU driver
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (2 preceding siblings ...)
2022-06-16 3:00 ` [PATCH v8 3/5] raw/ifpga: add HE-LPBK " Wei Huang
@ 2022-06-16 3:00 ` Wei Huang
2022-06-16 3:00 ` [PATCH v8 5/5] raw/ifpga: add HE-HSSI " Wei Huang
2022-06-21 8:49 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Thomas Monjalon
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-16 3:00 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-MEM is one of the host exerciser modules in OFS FPGA,
which is used to test local memory with built-in traffic
generator.
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
---
v2: move source files to ifpga and rename
---
drivers/raw/ifpga/afu_pmd_he_mem.c | 183 +++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_mem.h | 46 ++++++++++
drivers/raw/ifpga/meson.build | 2 +-
drivers/raw/ifpga/rte_pmd_afu.h | 7 ++
4 files changed, 237 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_mem.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.c b/drivers/raw/ifpga/afu_pmd_he_mem.c
new file mode 100644
index 0000000..0f57a03
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_mem.c
@@ -0,0 +1,183 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_mem.h"
+
+static int he_mem_tg_test(struct afu_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct rte_pmd_afu_he_mem_tg_cfg *cfg = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+ uint64_t value = 0x12345678;
+ uint64_t cap = 0;
+ uint64_t channel_mask = 0;
+ int i, t = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_mem_tg_cfg;
+ ctx = &priv->he_mem_tg_ctx;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Channel mask: 0x%x", cfg->channel_mask);
+
+ rte_write64(value, ctx->addr + MEM_TG_SCRATCHPAD);
+ cap = rte_read64(ctx->addr + MEM_TG_SCRATCHPAD);
+ IFPGA_RAWDEV_PMD_DEBUG("Scratchpad value: 0x%"PRIx64, cap);
+ if (cap != value) {
+ IFPGA_RAWDEV_PMD_ERR("Test scratchpad register failed");
+ return -EIO;
+ }
+
+ cap = rte_read64(ctx->addr + MEM_TG_CTRL);
+ IFPGA_RAWDEV_PMD_DEBUG("Capability: 0x%"PRIx64, cap);
+
+ channel_mask = cfg->channel_mask & cap;
+ /* start traffic generators */
+ rte_write64(channel_mask, ctx->addr + MEM_TG_CTRL);
+
+ /* check test status */
+ while (t < MEM_TG_TIMEOUT_MS) {
+ value = rte_read64(ctx->addr + MEM_TG_STAT);
+ for (i = 0; i < NUM_MEM_TG_CHANNELS; i++) {
+ if (channel_mask & (1 << i)) {
+ if (TGACTIVE(value, i))
+ continue;
+ printf("TG channel %d test %s\n", i,
+ TGPASS(value, i) ? "pass" :
+ TGTIMEOUT(value, i) ? "timeout" :
+ TGFAIL(value, i) ? "fail" : "error");
+ channel_mask &= ~(1 << i);
+ }
+ }
+ if (!channel_mask)
+ break;
+ rte_delay_ms(MEM_TG_POLL_INTERVAL_MS);
+ t += MEM_TG_POLL_INTERVAL_MS;
+ }
+
+ if (channel_mask) {
+ IFPGA_RAWDEV_PMD_ERR("Timeout 0x%04lx", (unsigned long)value);
+ return channel_mask;
+ }
+
+ return 0;
+}
+
+static int he_mem_tg_init(struct afu_rawdev *dev)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_mem_tg_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_mem_tg_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_mem_tg_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_mem_tg_priv *priv = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_mem_tg_cfg))
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_mem_tg_cfg, config, sizeof(priv->he_mem_tg_cfg));
+
+ return 0;
+}
+
+static int he_mem_tg_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_mem_tg_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_mem_tg_priv *priv = NULL;
+ struct he_mem_tg_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_mem_tg_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_mem_tg_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_ops he_mem_tg_ops = {
+ .init = he_mem_tg_init,
+ .config = he_mem_tg_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_mem_tg_test,
+ .close = he_mem_tg_close,
+ .dump = he_mem_tg_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_mem_tg_drv = {
+ .uuid = { HE_MEM_TG_UUID_L, HE_MEM_TG_UUID_H },
+ .ops = &he_mem_tg_ops
+};
+
+AFU_PMD_REGISTER(he_mem_tg_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_mem.h b/drivers/raw/ifpga/afu_pmd_he_mem.h
new file mode 100644
index 0000000..5549687
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_mem.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_MEM_H_
+#define _AFU_PMD_HE_MEM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_MEM_TG_UUID_L 0xa3dc5b831f5cecbb
+#define HE_MEM_TG_UUID_H 0x4dadea342c7848cb
+
+#define NUM_MEM_TG_CHANNELS 4
+#define MEM_TG_TIMEOUT_MS 5000
+#define MEM_TG_POLL_INTERVAL_MS 10
+
+/* MEM-TG registers definition */
+#define MEM_TG_SCRATCHPAD 0x28
+#define MEM_TG_CTRL 0x30
+#define TGCONTROL(n) (1 << (n))
+#define MEM_TG_STAT 0x38
+#define TGSTATUS(v, n) (((v) >> (n << 2)) & 0xf)
+#define TGPASS(v, n) (((v) >> ((n << 2) + 3)) & 0x1)
+#define TGFAIL(v, n) (((v) >> ((n << 2) + 2)) & 0x1)
+#define TGTIMEOUT(v, n) (((v) >> ((n << 2) + 1)) & 0x1)
+#define TGACTIVE(v, n) (((v) >> (n << 2)) & 0x1)
+
+struct he_mem_tg_ctx {
+ uint8_t *addr;
+};
+
+struct he_mem_tg_priv {
+ struct rte_pmd_afu_he_mem_tg_cfg he_mem_tg_cfg;
+ struct he_mem_tg_ctx he_mem_tg_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_MEM_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index 629ff8a..dc6941d 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,7 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index 19b3902..213e854 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -104,6 +104,13 @@ struct rte_pmd_afu_he_lpbk_cfg {
uint32_t freq_mhz;
};
+/**
+ * HE-MEM-TG AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_mem_tg_cfg {
+ uint32_t channel_mask; /* mask of traffic generator channel */
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* [PATCH v8 5/5] raw/ifpga: add HE-HSSI AFU driver
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (3 preceding siblings ...)
2022-06-16 3:00 ` [PATCH v8 4/5] raw/ifpga: add HE-MEM " Wei Huang
@ 2022-06-16 3:00 ` Wei Huang
2022-06-21 8:49 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Thomas Monjalon
5 siblings, 0 replies; 57+ messages in thread
From: Wei Huang @ 2022-06-16 3:00 UTC (permalink / raw)
To: dev, thomas, nipun.gupta, hemant.agrawal
Cc: stable, rosen.xu, tianfei.zhang, qi.z.zhang, Wei Huang
HE-HSSI is one of the host exerciser modules in OFS FPGA,
which is used to test HSSI (High Speed Serial Interface).
This driver initialize the module and report test result.
Signed-off-by: Wei Huang <wei.huang@intel.com>
Acked-by: Tianfei Zhang <tianfei.zhang@intel.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
---
v2: move source files to ifpga and rename, refine code
---
drivers/raw/ifpga/afu_pmd_he_hssi.c | 371 ++++++++++++++++++++++++++++++++++++
drivers/raw/ifpga/afu_pmd_he_hssi.h | 109 +++++++++++
drivers/raw/ifpga/meson.build | 3 +-
drivers/raw/ifpga/rte_pmd_afu.h | 18 ++
4 files changed, 500 insertions(+), 1 deletion(-)
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.c
create mode 100644 drivers/raw/ifpga/afu_pmd_he_hssi.h
diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.c b/drivers/raw/ifpga/afu_pmd_he_hssi.c
new file mode 100644
index 0000000..102de50
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_hssi.c
@@ -0,0 +1,371 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <rte_eal.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_io.h>
+#include <rte_vfio.h>
+#include <rte_bus_pci.h>
+#include <rte_bus_ifpga.h>
+#include <rte_rawdev.h>
+
+#include "afu_pmd_core.h"
+#include "afu_pmd_he_hssi.h"
+
+static int he_hssi_indirect_write(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Indirect write 0x%x, value 0x%08x", addr, value);
+
+ if (!ctx)
+ return -EINVAL;
+
+ data.write_data = value;
+ rte_write64(data.csr, ctx->addr + TRAFFIC_CTRL_DATA);
+
+ cmd.csr = 0;
+ cmd.write_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int he_hssi_indirect_read(struct he_hssi_ctx *ctx, uint32_t addr,
+ uint32_t *value)
+{
+ struct traffic_ctrl_cmd cmd;
+ struct traffic_ctrl_data data;
+ uint32_t i = 0;
+
+ if (!ctx)
+ return -EINVAL;
+
+ cmd.csr = 0;
+ cmd.read_cmd = 1;
+ cmd.afu_cmd_addr = addr;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+
+ while (i < MAILBOX_TIMEOUT_MS) {
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (cmd.ack_trans) {
+ data.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_DATA);
+ *value = data.read_data;
+ break;
+ }
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ i = 0;
+ cmd.csr = 0;
+ while (i < MAILBOX_TIMEOUT_MS) {
+ cmd.ack_trans = 1;
+ rte_write64(cmd.csr, ctx->addr + TRAFFIC_CTRL_CMD);
+ rte_delay_ms(MAILBOX_POLL_INTERVAL_MS);
+ cmd.csr = rte_read64(ctx->addr + TRAFFIC_CTRL_CMD);
+ if (!cmd.ack_trans)
+ break;
+ i += MAILBOX_POLL_INTERVAL_MS;
+ }
+ if (i >= MAILBOX_TIMEOUT_MS)
+ return -ETIMEDOUT;
+
+ IFPGA_RAWDEV_PMD_DEBUG("Indirect read 0x%x, value 0x%08x", addr, *value);
+ return 0;
+}
+
+static void he_hssi_report(struct he_hssi_ctx *ctx)
+{
+ uint32_t val = 0;
+ uint64_t v64 = 0;
+ int ret = 0;
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_GOOD, &val);
+ if (ret)
+ return;
+ printf("Number of good packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_PKT_BAD, &val);
+ if (ret)
+ return;
+ printf("Number of bad packets received: %u\n", val);
+
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT1, &val);
+ if (ret)
+ return;
+ v64 = val;
+ ret = he_hssi_indirect_read(ctx, TM_BYTE_CNT0, &val);
+ if (ret)
+ return;
+ v64 = (v64 << 32) | val;
+ printf("Number of bytes received: %"PRIu64"\n", v64);
+
+ ret = he_hssi_indirect_read(ctx, TM_AVST_RX_ERR, &val);
+ if (ret)
+ return;
+ if (val & ERR_VALID) {
+ printf("AVST rx error:");
+ if (val & OVERFLOW_ERR)
+ printf(" overflow");
+ if (val & LENGTH_ERR)
+ printf(" length");
+ if (val & OVERSIZE_ERR)
+ printf(" oversize");
+ if (val & UNDERSIZE_ERR)
+ printf(" undersize");
+ if (val & MAC_CRC_ERR)
+ printf(" crc");
+ if (val & PHY_ERR)
+ printf(" phy");
+ printf("\n");
+ }
+
+ ret = he_hssi_indirect_read(ctx, LOOPBACK_FIFO_STATUS, &val);
+ if (ret)
+ return;
+ if (val & (ALMOST_EMPTY | ALMOST_FULL)) {
+ printf("FIFO status:");
+ if (val & ALMOST_EMPTY)
+ printf(" almost empty");
+ if (val & ALMOST_FULL)
+ printf(" almost full");
+ printf("\n");
+ }
+}
+
+static int he_hssi_test(struct afu_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+ struct traffic_ctrl_ch_sel sel;
+ uint32_t val = 0;
+ uint32_t i = 0;
+ int ret = 0;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ cfg = &priv->he_hssi_cfg;
+ ctx = &priv->he_hssi_ctx;
+
+ ret = he_hssi_indirect_write(ctx, TG_STOP_XFR, 0);
+ if (ret)
+ return ret;
+
+ sel.channel_sel = cfg->port;
+ rte_write64(sel.csr, ctx->addr + TRAFFIC_CTRL_CH_SEL);
+
+ if (cfg->he_loopback >= 0) {
+ val = cfg->he_loopback ? 1 : 0;
+ IFPGA_RAWDEV_PMD_INFO("%s HE loopback on port %u",
+ val ? "Enable" : "Disable", cfg->port);
+ return he_hssi_indirect_write(ctx, LOOPBACK_EN, val);
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_NUM_PKT, cfg->num_packets);
+ if (ret)
+ return ret;
+
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN, cfg->packet_length);
+ if (ret)
+ return ret;
+
+ val = cfg->src_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->src_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_SRC_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->dest_addr & 0xffffffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_L, val);
+ if (ret)
+ return ret;
+ val = (cfg->dest_addr >> 32) & 0xffff;
+ ret = he_hssi_indirect_write(ctx, TG_DST_MAC_H, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_length ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_PKT_LEN_TYPE, val);
+ if (ret)
+ return ret;
+
+ val = cfg->random_payload ? 1 : 0;
+ ret = he_hssi_indirect_write(ctx, TG_DATA_PATTERN, val);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < TG_NUM_RND_SEEDS; i++) {
+ ret = he_hssi_indirect_write(ctx, TG_RANDOM_SEED(i),
+ cfg->rnd_seed[i]);
+ if (ret)
+ return ret;
+ }
+
+ ret = he_hssi_indirect_write(ctx, TG_START_XFR, 1);
+ if (ret)
+ return ret;
+
+ while (i++ < cfg->timeout) {
+ ret = he_hssi_indirect_read(ctx, TG_PKT_XFRD, &val);
+ if (ret)
+ break;
+ if (val == cfg->num_packets)
+ break;
+ sleep(1);
+ }
+
+ he_hssi_report(ctx);
+
+ return ret;
+}
+
+static int he_hssi_init(struct afu_rawdev *dev)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv) {
+ priv = rte_zmalloc(NULL, sizeof(struct he_hssi_priv), 0);
+ if (!priv)
+ return -ENOMEM;
+ dev->priv = priv;
+ }
+
+ ctx = &priv->he_hssi_ctx;
+ ctx->addr = (uint8_t *)dev->addr;
+
+ return 0;
+}
+
+static int he_hssi_config(struct afu_rawdev *dev, void *config,
+ size_t config_size)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct rte_pmd_afu_he_hssi_cfg *cfg = NULL;
+
+ if (!dev || !config || !config_size)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (config_size != sizeof(struct rte_pmd_afu_he_hssi_cfg))
+ return -EINVAL;
+
+ cfg = (struct rte_pmd_afu_he_hssi_cfg *)config;
+ if (cfg->port >= NUM_HE_HSSI_PORTS)
+ return -EINVAL;
+
+ rte_memcpy(&priv->he_hssi_cfg, cfg, sizeof(priv->he_hssi_cfg));
+
+ return 0;
+}
+
+static int he_hssi_close(struct afu_rawdev *dev)
+{
+ if (!dev)
+ return -EINVAL;
+
+ rte_free(dev->priv);
+ dev->priv = NULL;
+
+ return 0;
+}
+
+static int he_hssi_dump(struct afu_rawdev *dev, FILE *f)
+{
+ struct he_hssi_priv *priv = NULL;
+ struct he_hssi_ctx *ctx = NULL;
+
+ if (!dev)
+ return -EINVAL;
+
+ priv = (struct he_hssi_priv *)dev->priv;
+ if (!priv)
+ return -ENOENT;
+
+ if (!f)
+ f = stdout;
+
+ ctx = &priv->he_hssi_ctx;
+
+ fprintf(f, "addr:\t\t%p\n", (void *)ctx->addr);
+
+ return 0;
+}
+
+static struct afu_ops he_hssi_ops = {
+ .init = he_hssi_init,
+ .config = he_hssi_config,
+ .start = NULL,
+ .stop = NULL,
+ .test = he_hssi_test,
+ .close = he_hssi_close,
+ .dump = he_hssi_dump,
+ .reset = NULL
+};
+
+struct afu_rawdev_drv he_hssi_drv = {
+ .uuid = { HE_HSSI_UUID_L, HE_HSSI_UUID_H },
+ .ops = &he_hssi_ops
+};
+
+AFU_PMD_REGISTER(he_hssi_drv);
diff --git a/drivers/raw/ifpga/afu_pmd_he_hssi.h b/drivers/raw/ifpga/afu_pmd_he_hssi.h
new file mode 100644
index 0000000..38b433c
--- /dev/null
+++ b/drivers/raw/ifpga/afu_pmd_he_hssi.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2022 Intel Corporation
+ */
+
+#ifndef _AFU_PMD_HE_HSSI_H_
+#define _AFU_PMD_HE_HSSI_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "afu_pmd_core.h"
+#include "rte_pmd_afu.h"
+
+#define HE_HSSI_UUID_L 0xbb370242ac130002
+#define HE_HSSI_UUID_H 0x823c334c98bf11ea
+#define NUM_HE_HSSI_PORTS 8
+
+/* HE-HSSI registers definition */
+#define TRAFFIC_CTRL_CMD 0x30
+#define TRAFFIC_CTRL_DATA 0x38
+#define TRAFFIC_CTRL_CH_SEL 0x40
+#define AFU_SCRATCHPAD 0x48
+
+#define TG_NUM_PKT 0x3c00
+#define TG_PKT_LEN_TYPE 0x3c01
+#define TG_DATA_PATTERN 0x3c02
+#define TG_START_XFR 0x3c03
+#define TG_STOP_XFR 0x3c04
+#define TG_SRC_MAC_L 0x3c05
+#define TG_SRC_MAC_H 0x3c06
+#define TG_DST_MAC_L 0x3c07
+#define TG_DST_MAC_H 0x3c08
+#define TG_PKT_XFRD 0x3c09
+#define TG_NUM_RND_SEEDS 3
+#define TG_RANDOM_SEED(n) (0x3c0a + (n))
+#define TG_PKT_LEN 0x3c0d
+
+#define TM_NUM_PKT 0x3d00
+#define TM_PKT_GOOD 0x3d01
+#define TM_PKT_BAD 0x3d02
+#define TM_BYTE_CNT0 0x3d03
+#define TM_BYTE_CNT1 0x3d04
+#define TM_AVST_RX_ERR 0x3d07
+#define OVERFLOW_ERR (1 << 9)
+#define LENGTH_ERR (1 << 8)
+#define OVERSIZE_ERR (1 << 7)
+#define UNDERSIZE_ERR (1 << 6)
+#define MAC_CRC_ERR (1 << 5)
+#define PHY_ERR (1 << 4)
+#define ERR_VALID (1 << 3)
+
+#define LOOPBACK_EN 0x3e00
+#define LOOPBACK_FIFO_STATUS 0x3e01
+#define ALMOST_EMPTY (1 << 1)
+#define ALMOST_FULL (1 << 0)
+
+#define MAILBOX_TIMEOUT_MS 100
+#define MAILBOX_POLL_INTERVAL_MS 10
+
+struct traffic_ctrl_cmd {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_cmd:1;
+ uint32_t write_cmd:1;
+ uint32_t ack_trans:1;
+ uint32_t rsvd1:29;
+ uint32_t afu_cmd_addr:16;
+ uint32_t rsvd2:16;
+ };
+ };
+};
+
+struct traffic_ctrl_data {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t read_data;
+ uint32_t write_data;
+ };
+ };
+};
+
+struct traffic_ctrl_ch_sel {
+ union {
+ uint64_t csr;
+ struct {
+ uint32_t channel_sel:3;
+ uint32_t rsvd1:29;
+ uint32_t rsvd2;
+ };
+ };
+};
+
+struct he_hssi_ctx {
+ uint8_t *addr;
+};
+
+struct he_hssi_priv {
+ struct rte_pmd_afu_he_hssi_cfg he_hssi_cfg;
+ struct he_hssi_ctx he_hssi_ctx;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _AFU_PMD_HE_HSSI_H_ */
diff --git a/drivers/raw/ifpga/meson.build b/drivers/raw/ifpga/meson.build
index dc6941d..cc30dc8 100644
--- a/drivers/raw/ifpga/meson.build
+++ b/drivers/raw/ifpga/meson.build
@@ -14,7 +14,8 @@ deps += ['ethdev', 'rawdev', 'pci', 'bus_pci', 'kvargs',
'bus_vdev', 'bus_ifpga', 'net', 'net_i40e', 'net_ipn3ke']
sources = files('ifpga_rawdev.c', 'rte_pmd_ifpga.c', 'afu_pmd_core.c',
- 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c')
+ 'afu_pmd_n3000.c', 'afu_pmd_he_lpbk.c', 'afu_pmd_he_mem.c',
+ 'afu_pmd_he_hssi.c')
includes += include_directories('base')
includes += include_directories('../../net/ipn3ke')
diff --git a/drivers/raw/ifpga/rte_pmd_afu.h b/drivers/raw/ifpga/rte_pmd_afu.h
index 213e854..b1cebbe 100644
--- a/drivers/raw/ifpga/rte_pmd_afu.h
+++ b/drivers/raw/ifpga/rte_pmd_afu.h
@@ -111,6 +111,24 @@ struct rte_pmd_afu_he_mem_tg_cfg {
uint32_t channel_mask; /* mask of traffic generator channel */
};
+#define NUM_RND_SEEDS 3
+
+/**
+ * HE-HSSI AFU configuration data structure.
+ */
+struct rte_pmd_afu_he_hssi_cfg {
+ uint32_t port;
+ uint32_t timeout;
+ uint32_t num_packets;
+ uint32_t random_length;
+ uint32_t packet_length;
+ uint32_t random_payload;
+ uint32_t rnd_seed[NUM_RND_SEEDS];
+ uint64_t src_addr;
+ uint64_t dest_addr;
+ int he_loopback;
+};
+
#ifdef __cplusplus
}
#endif
--
1.8.3.1
^ permalink raw reply [flat|nested] 57+ messages in thread* Re: [PATCH v8 0/5] introduce AFU PMD driver of FPGA
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
` (4 preceding siblings ...)
2022-06-16 3:00 ` [PATCH v8 5/5] raw/ifpga: add HE-HSSI " Wei Huang
@ 2022-06-21 8:49 ` Thomas Monjalon
5 siblings, 0 replies; 57+ messages in thread
From: Thomas Monjalon @ 2022-06-21 8:49 UTC (permalink / raw)
To: Wei Huang
Cc: dev, nipun.gupta, hemant.agrawal, stable, rosen.xu,
tianfei.zhang, qi.z.zhang
16/06/2022 05:00, Wei Huang:
> The first patch implements the framework of the AFU PMD driver based on raw
> device interfaces.
> The subsequent patches implement the driver of some AFUs.
>
> Changes from v7:
> 1. move driver description to ifpga.rst per Rosen comment.
> 2. rename function name according to DPDK program guide per Rosen comment.
>
> Wei Huang (5):
> raw/ifpga: introduce AFU driver framework
> raw/ifpga: add N3000 AFU driver
> raw/ifpga: add HE-LPBK AFU driver
> raw/ifpga: add HE-MEM AFU driver
> raw/ifpga: add HE-HSSI AFU driver
Applied with few minor improvements, thanks.
^ permalink raw reply [flat|nested] 57+ messages in thread
end of thread, other threads:[~2022-06-21 8:49 UTC | newest]
Thread overview: 57+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-05-17 6:29 [PATCH v1] raw/afu_mf: introduce AFU MF device driver Wei Huang
2022-05-17 7:34 ` [PATCH v2] " Wei Huang
2022-05-19 2:43 ` [PATCH v3] " Wei Huang
2022-05-19 5:52 ` [PATCH v4] " Wei Huang
2022-05-26 6:51 ` Xu, Rosen
2022-05-27 5:36 ` [PATCH v5 0/5] introduce afu_mf raw " Wei Huang
2022-05-27 5:37 ` [PATCH v5 1/5] drivers/raw: introduce AFU " Wei Huang
2022-06-06 1:52 ` Zhang, Tianfei
2022-06-06 2:00 ` Zhang, Tianfei
2022-06-07 2:36 ` Huang, Wei
2022-06-07 2:35 ` Huang, Wei
2022-06-06 15:38 ` Stephen Hemminger
2022-06-07 1:36 ` Huang, Wei
2022-05-27 5:37 ` [PATCH v5 2/5] raw/afu_mf: add N3000 AFU driver Wei Huang
2022-06-06 1:38 ` Zhang, Tianfei
2022-06-07 2:40 ` Huang, Wei
2022-05-27 5:37 ` [PATCH v5 3/5] raw/afu_mf: add HE-LBK " Wei Huang
2022-06-06 1:41 ` Zhang, Tianfei
2022-06-07 2:42 ` Huang, Wei
2022-05-27 5:37 ` [PATCH v5 4/5] raw/afu_mf: add HE-MEM " Wei Huang
2022-06-06 6:36 ` Zhang, Tianfei
2022-06-07 2:43 ` Huang, Wei
2022-05-27 5:37 ` [PATCH v5 5/5] raw/afu_mf: add HE-HSSI " Wei Huang
2022-06-06 6:39 ` Zhang, Tianfei
2022-06-07 2:44 ` Huang, Wei
2022-06-06 1:47 ` [PATCH v5 0/5] introduce afu_mf raw device driver Zhang, Tianfei
2022-06-07 2:34 ` Huang, Wei
2022-06-09 2:44 ` [PATCH v6 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-09 2:44 ` [PATCH v6 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
2022-06-09 2:44 ` [PATCH v6 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
2022-06-09 2:44 ` [PATCH v6 3/5] raw/ifpga: add HE-LPBK " Wei Huang
2022-06-09 2:44 ` [PATCH v6 4/5] raw/ifpga: add HE-MEM " Wei Huang
2022-06-09 2:44 ` [PATCH v6 5/5] raw/ifpga: add HE-HSSI " Wei Huang
2022-06-09 7:37 ` [PATCH v7 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-09 7:37 ` [PATCH v7 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
2022-06-10 6:09 ` Zhang, Tianfei
2022-06-15 6:55 ` Xu, Rosen
2022-06-15 9:03 ` Huang, Wei
2022-06-09 7:37 ` [PATCH v7 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
2022-06-10 6:11 ` Zhang, Tianfei
2022-06-15 7:07 ` Xu, Rosen
2022-06-16 1:10 ` Huang, Wei
2022-06-09 7:37 ` [PATCH v7 3/5] raw/ifpga: add HE-LPBK " Wei Huang
2022-06-10 6:11 ` Zhang, Tianfei
2022-06-15 7:12 ` Xu, Rosen
2022-06-09 7:37 ` [PATCH v7 4/5] raw/ifpga: add HE-MEM " Wei Huang
2022-06-15 7:13 ` Xu, Rosen
2022-06-09 7:37 ` [PATCH v7 5/5] raw/ifpga: add HE-HSSI " Wei Huang
2022-06-10 6:12 ` Zhang, Tianfei
2022-06-15 7:14 ` Xu, Rosen
2022-06-16 3:00 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Wei Huang
2022-06-16 3:00 ` [PATCH v8 1/5] raw/ifpga: introduce AFU driver framework Wei Huang
2022-06-16 3:00 ` [PATCH v8 2/5] raw/ifpga: add N3000 AFU driver Wei Huang
2022-06-16 3:00 ` [PATCH v8 3/5] raw/ifpga: add HE-LPBK " Wei Huang
2022-06-16 3:00 ` [PATCH v8 4/5] raw/ifpga: add HE-MEM " Wei Huang
2022-06-16 3:00 ` [PATCH v8 5/5] raw/ifpga: add HE-HSSI " Wei Huang
2022-06-21 8:49 ` [PATCH v8 0/5] introduce AFU PMD driver of FPGA Thomas Monjalon
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