From: Chengwen Feng <fengchengwen@huawei.com>
To: <thomas@monjalon.net>, <ferruh.yigit@intel.com>,
<bruce.richardson@intel.com>, <jerinj@marvell.com>,
<jerinjacobk@gmail.com>
Cc: <dev@dpdk.org>, <mb@smartsharesystems.com>, <nipun.gupta@nxp.com>,
<hemant.agrawal@nxp.com>, <maxime.coquelin@redhat.com>,
<honnappa.nagarahalli@arm.com>, <david.marchand@redhat.com>,
<sburla@marvell.com>, <pkapoor@marvell.com>,
<konstantin.ananyev@intel.com>, <liangma@liangbit.com>
Subject: [dpdk-dev] [PATCH] dmadev: introduce DMA device library
Date: Fri, 2 Jul 2021 21:18:11 +0800 [thread overview]
Message-ID: <1625231891-2963-1-git-send-email-fengchengwen@huawei.com> (raw)
This patch introduces 'dmadevice' which is a generic type of DMA
device.
The APIs of dmadev library exposes some generic operations which can
enable configuration and I/O with the DMA devices.
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
MAINTAINERS | 4 +
config/rte_config.h | 3 +
lib/dmadev/meson.build | 6 +
lib/dmadev/rte_dmadev.c | 438 +++++++++++++++++++++
lib/dmadev/rte_dmadev.h | 919 +++++++++++++++++++++++++++++++++++++++++++
lib/dmadev/rte_dmadev_core.h | 98 +++++
lib/dmadev/rte_dmadev_pmd.h | 210 ++++++++++
lib/dmadev/version.map | 32 ++
lib/meson.build | 1 +
9 files changed, 1711 insertions(+)
create mode 100644 lib/dmadev/meson.build
create mode 100644 lib/dmadev/rte_dmadev.c
create mode 100644 lib/dmadev/rte_dmadev.h
create mode 100644 lib/dmadev/rte_dmadev_core.h
create mode 100644 lib/dmadev/rte_dmadev_pmd.h
create mode 100644 lib/dmadev/version.map
diff --git a/MAINTAINERS b/MAINTAINERS
index 4347555..2019783 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -496,6 +496,10 @@ F: drivers/raw/skeleton/
F: app/test/test_rawdev.c
F: doc/guides/prog_guide/rawdev.rst
+Dma device API
+M: Chengwen Feng <fengchengwen@huawei.com>
+F: lib/dmadev/
+
Memory Pool Drivers
-------------------
diff --git a/config/rte_config.h b/config/rte_config.h
index 590903c..331a431 100644
--- a/config/rte_config.h
+++ b/config/rte_config.h
@@ -81,6 +81,9 @@
/* rawdev defines */
#define RTE_RAWDEV_MAX_DEVS 64
+/* dmadev defines */
+#define RTE_DMADEV_MAX_DEVS 64
+
/* ip_fragmentation defines */
#define RTE_LIBRTE_IP_FRAG_MAX_FRAG 4
#undef RTE_LIBRTE_IP_FRAG_TBL_STAT
diff --git a/lib/dmadev/meson.build b/lib/dmadev/meson.build
new file mode 100644
index 0000000..c918dae
--- /dev/null
+++ b/lib/dmadev/meson.build
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2021 HiSilicon Limited.
+
+sources = files('rte_dmadev.c')
+headers = files('rte_dmadev.h', 'rte_dmadev_pmd.h')
+indirect_headers += files('rte_dmadev_core.h')
diff --git a/lib/dmadev/rte_dmadev.c b/lib/dmadev/rte_dmadev.c
new file mode 100644
index 0000000..a94e839
--- /dev/null
+++ b/lib/dmadev/rte_dmadev.c
@@ -0,0 +1,438 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2021 HiSilicon Limited.
+ */
+
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_dev.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_malloc.h>
+#include <rte_errno.h>
+#include <rte_string_fns.h>
+
+#include "rte_dmadev.h"
+#include "rte_dmadev_pmd.h"
+
+struct rte_dmadev rte_dmadevices[RTE_DMADEV_MAX_DEVS];
+
+uint16_t
+rte_dmadev_count(void)
+{
+ uint16_t count = 0;
+ uint16_t i;
+
+ for (i = 0; i < RTE_DMADEV_MAX_DEVS; i++) {
+ if (rte_dmadevices[i].attached)
+ count++;
+ }
+
+ return count;
+}
+
+int
+rte_dmadev_get_dev_id(const char *name)
+{
+ uint16_t i;
+
+ if (name == NULL)
+ return -EINVAL;
+
+ for (i = 0; i < RTE_DMADEV_MAX_DEVS; i++)
+ if ((strcmp(rte_dmadevices[i].name, name) == 0) &&
+ (rte_dmadevices[i].attached == RTE_DMADEV_ATTACHED))
+ return i;
+
+ return -ENODEV;
+}
+
+int
+rte_dmadev_socket_id(uint16_t dev_id)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ dev = &rte_dmadevices[dev_id];
+
+ return dev->socket_id;
+}
+
+int
+rte_dmadev_info_get(uint16_t dev_id, struct rte_dmadev_info *dev_info)
+{
+ struct rte_dmadev *dev;
+ int diag;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ RTE_FUNC_PTR_OR_ERR_RET(dev_info, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_info_get, -ENOTSUP);
+
+ memset(dev_info, 0, sizeof(struct rte_dmadev_info));
+ diag = (*dev->dev_ops->dev_info_get)(dev, dev_info);
+ if (diag != 0)
+ return diag;
+
+ dev_info->device = dev->device;
+ dev_info->driver_name = dev->driver_name;
+ dev_info->socket_id = dev->socket_id;
+
+ return 0;
+}
+
+int
+rte_dmadev_configure(uint16_t dev_id, const struct rte_dmadev_conf *dev_conf)
+{
+ struct rte_dmadev *dev;
+ int diag;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ RTE_FUNC_PTR_OR_ERR_RET(dev_conf, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP);
+
+ if (dev->started) {
+ RTE_DMADEV_LOG(ERR,
+ "device %u must be stopped to allow configuration", dev_id);
+ return -EBUSY;
+ }
+
+ diag = (*dev->dev_ops->dev_configure)(dev, dev_conf);
+ if (diag != 0)
+ RTE_DMADEV_LOG(ERR, "device %u dev_configure failed, ret = %d",
+ dev_id, diag);
+ else
+ dev->attached = 1;
+
+ return diag;
+}
+
+int
+rte_dmadev_start(uint16_t dev_id)
+{
+ struct rte_dmadev *dev;
+ int diag;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+ if (dev->started != 0) {
+ RTE_DMADEV_LOG(ERR, "device %u already started", dev_id);
+ return 0;
+ }
+
+ if (dev->dev_ops->dev_start == NULL)
+ goto mark_started;
+
+ diag = (*dev->dev_ops->dev_start)(dev);
+ if (diag != 0)
+ return diag;
+
+mark_started:
+ dev->started = 1;
+ return 0;
+}
+
+int
+rte_dmadev_stop(uint16_t dev_id)
+{
+ struct rte_dmadev *dev;
+ int diag;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ if (dev->started == 0) {
+ RTE_DMADEV_LOG(ERR, "device %u already stopped", dev_id);
+ return 0;
+ }
+
+ if (dev->dev_ops->dev_stop == NULL)
+ goto mark_stopped;
+
+ diag = (*dev->dev_ops->dev_stop)(dev);
+ if (diag != 0)
+ return diag;
+
+mark_stopped:
+ dev->started = 0;
+ return 0;
+}
+
+int
+rte_dmadev_close(uint16_t dev_id)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
+
+ /* Device must be stopped before it can be closed */
+ if (dev->started == 1) {
+ RTE_DMADEV_LOG(ERR, "device %u must be stopped before closing",
+ dev_id);
+ return -EBUSY;
+ }
+
+ return (*dev->dev_ops->dev_close)(dev);
+}
+
+int
+rte_dmadev_reset(uint16_t dev_id)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_reset, -ENOTSUP);
+
+ /* Reset is not dependent on state of the device */
+ return (*dev->dev_ops->dev_reset)(dev);
+}
+
+int
+rte_dmadev_queue_setup(uint16_t dev_id,
+ const struct rte_dmadev_queue_conf *conf)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ RTE_FUNC_PTR_OR_ERR_RET(conf, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_setup, -ENOTSUP);
+
+ return (*dev->dev_ops->queue_setup)(dev, conf);
+}
+
+int
+rte_dmadev_queue_release(uint16_t dev_id, uint16_t vq_id)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP);
+
+ return (*dev->dev_ops->queue_release)(dev, vq_id);
+}
+
+int
+rte_dmadev_queue_info_get(uint16_t dev_id, uint16_t vq_id,
+ struct rte_dmadev_queue_info *info)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ RTE_FUNC_PTR_OR_ERR_RET(info, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_info_get, -ENOTSUP);
+
+ memset(info, 0, sizeof(struct rte_dmadev_queue_info));
+ return (*dev->dev_ops->queue_info_get)(dev, vq_id, info);
+}
+
+int
+rte_dmadev_stats_get(uint16_t dev_id, int vq_id,
+ struct rte_dmadev_stats *stats)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ RTE_FUNC_PTR_OR_ERR_RET(stats, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
+
+ return (*dev->dev_ops->stats_get)(dev, vq_id, stats);
+}
+
+int
+rte_dmadev_stats_reset(uint16_t dev_id, int vq_id)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_reset, -ENOTSUP);
+
+ return (*dev->dev_ops->stats_reset)(dev, vq_id);
+}
+
+static int
+xstats_get_count(uint16_t dev_id)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_get_names, -ENOTSUP);
+
+ return (*dev->dev_ops->xstats_get_names)(dev, NULL, 0);
+}
+
+int
+rte_dmadev_xstats_names_get(uint16_t dev_id,
+ struct rte_dmadev_xstats_name *xstats_names,
+ uint32_t size)
+{
+ struct rte_dmadev *dev;
+ int cnt_expected_entries;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ cnt_expected_entries = xstats_get_count(dev_id);
+
+ if (xstats_names == NULL || cnt_expected_entries < 0 ||
+ (int)size < cnt_expected_entries || size == 0)
+ return cnt_expected_entries;
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_get_names, -ENOTSUP);
+ return (*dev->dev_ops->xstats_get_names)(dev, xstats_names, size);
+}
+
+int
+rte_dmadev_xstats_get(uint16_t dev_id, const uint32_t ids[],
+ uint64_t values[], uint32_t n)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+ RTE_FUNC_PTR_OR_ERR_RET(ids, -EINVAL);
+ RTE_FUNC_PTR_OR_ERR_RET(values, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_get, -ENOTSUP);
+
+ return (*dev->dev_ops->xstats_get)(dev, ids, values, n);
+}
+
+int
+rte_dmadev_xstats_reset(uint16_t dev_id, const uint32_t ids[], uint32_t nb_ids)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->xstats_reset, -ENOTSUP);
+
+ return (*dev->dev_ops->xstats_reset)(dev, ids, nb_ids);
+}
+
+int
+rte_dmadev_selftest(uint16_t dev_id)
+{
+ struct rte_dmadev *dev;
+
+ RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
+
+ dev = &rte_dmadevices[dev_id];
+
+ RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_selftest, -ENOTSUP);
+
+ return (*dev->dev_ops->dev_selftest)(dev_id);
+}
+
+static inline uint16_t
+rte_dmadev_find_free_device_index(void)
+{
+ uint16_t i;
+
+ for (i = 0; i < RTE_DMADEV_MAX_DEVS; i++) {
+ if (rte_dmadevices[i].attached == RTE_DMADEV_DETACHED)
+ return i;
+ }
+
+ return RTE_DMADEV_MAX_DEVS;
+}
+
+struct rte_dmadev *
+rte_dmadev_pmd_allocate(const char *name, size_t dev_priv_size, int socket_id)
+{
+ struct rte_dmadev *dev;
+ uint16_t dev_id;
+
+ if (rte_dmadev_get_dev_id(name) >= 0) {
+ RTE_DMADEV_LOG(ERR,
+ "device with name %s already allocated!", name);
+ return NULL;
+ }
+
+ dev_id = rte_dmadev_find_free_device_index();
+ if (dev_id == RTE_DMADEV_MAX_DEVS) {
+ RTE_DMADEV_LOG(ERR, "reached maximum number of DMA devices");
+ return NULL;
+ }
+
+ dev = &rte_dmadevices[dev_id];
+
+ if (dev_priv_size > 0) {
+ dev->dev_private = rte_zmalloc_socket("dmadev private",
+ dev_priv_size,
+ RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (dev->dev_private == NULL) {
+ RTE_DMADEV_LOG(ERR,
+ "unable to allocate memory for dmadev");
+ return NULL;
+ }
+ }
+
+ dev->dev_id = dev_id;
+ dev->socket_id = socket_id;
+ dev->started = 0;
+ strlcpy(dev->name, name, RTE_DMADEV_NAME_MAX_LEN);
+
+ dev->attached = RTE_DMADEV_ATTACHED;
+
+ return dev;
+}
+
+int
+rte_dmadev_pmd_release(struct rte_dmadev *dev)
+{
+ int ret;
+
+ if (dev == NULL)
+ return -EINVAL;
+
+ ret = rte_dmadev_close(dev->dev_id);
+ if (ret != 0)
+ return ret;
+
+ if (dev->dev_private != NULL)
+ rte_free(dev->dev_private);
+
+ memset(dev, 0, sizeof(struct rte_dmadev));
+ dev->attached = RTE_DMADEV_DETACHED;
+
+ return 0;
+}
+
+RTE_LOG_REGISTER(libdmadev_logtype, lib.dmadev, INFO);
diff --git a/lib/dmadev/rte_dmadev.h b/lib/dmadev/rte_dmadev.h
new file mode 100644
index 0000000..f74fc6a
--- /dev/null
+++ b/lib/dmadev/rte_dmadev.h
@@ -0,0 +1,919 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2021 HiSilicon Limited.
+ */
+
+#ifndef _RTE_DMADEV_H_
+#define _RTE_DMADEV_H_
+
+/**
+ * @file rte_dmadev.h
+ *
+ * RTE DMA (Direct Memory Access) device APIs.
+ *
+ * The generic DMA device diagram:
+ *
+ * ------------ ------------
+ * | HW-queue | | HW-queue |
+ * ------------ ------------
+ * \ /
+ * \ /
+ * \ /
+ * ----------------
+ * |dma-controller|
+ * ----------------
+ *
+ * The DMA could have multiple HW-queues, each HW-queue could have multiple
+ * capabilities, e.g. whether to support fill operation, supported DMA
+ * transfter direction and etc.
+ *
+ * The DMA framework is built on the following abstraction model:
+ *
+ * ------------ ------------
+ * |virt-queue| |virt-queue|
+ * ------------ ------------
+ * \ /
+ * \ /
+ * \ /
+ * ------------ ------------
+ * | HW-queue | | HW-queue |
+ * ------------ ------------
+ * \ /
+ * \ /
+ * \ /
+ * ----------
+ * | dmadev |
+ * ----------
+ *
+ * a) The DMA operation request must be submitted to the virt queue, virt
+ * queues must be created based on HW queues, the DMA device could have
+ * multiple HW queues.
+ * b) The virt queues on the same HW-queue could represent different contexts,
+ * e.g. user could create virt-queue-0 on HW-queue-0 for mem-to-mem
+ * transfer scenario, and create virt-queue-1 on the same HW-queue for
+ * mem-to-dev transfer scenario.
+ * NOTE: user could also create multiple virt queues for mem-to-mem transfer
+ * scenario as long as the corresponding driver supports.
+ *
+ * The control plane APIs include configure/queue_setup/queue_release/start/
+ * stop/reset/close, in order to start device work, the call sequence must be
+ * as follows:
+ * - rte_dmadev_configure()
+ * - rte_dmadev_queue_setup()
+ * - rte_dmadev_start()
+ *
+ * The dataplane APIs include two parts:
+ * a) The first part is the submission of operation requests:
+ * - rte_dmadev_copy()
+ * - rte_dmadev_copy_sg() - scatter-gather form of copy
+ * - rte_dmadev_fill()
+ * - rte_dmadev_fill_sg() - scatter-gather form of fill
+ * - rte_dmadev_fence() - add a fence force ordering between operations
+ * - rte_dmadev_perform() - issue doorbell to hardware
+ * These APIs could work with different virt queues which have different
+ * contexts.
+ * The first four APIs are used to submit the operation request to the virt
+ * queue, if the submission is successful, a cookie (as type
+ * 'dma_cookie_t') is returned, otherwise a negative number is returned.
+ * b) The second part is to obtain the result of requests:
+ * - rte_dmadev_completed()
+ * - return the number of operation requests completed successfully.
+ * - rte_dmadev_completed_fails()
+ * - return the number of operation requests failed to complete.
+ *
+ * The misc APIs include info_get/queue_info_get/stats/xstats/selftest, provide
+ * information query and self-test capabilities.
+ *
+ * About the dataplane APIs MT-safe, there are two dimensions:
+ * a) For one virt queue, the submit/completion API could be MT-safe,
+ * e.g. one thread do submit operation, another thread do completion
+ * operation.
+ * If driver support it, then declare RTE_DMA_DEV_CAPA_MT_VQ.
+ * If driver don't support it, it's up to the application to guarantee
+ * MT-safe.
+ * b) For multiple virt queues on the same HW queue, e.g. one thread do
+ * operation on virt-queue-0, another thread do operation on virt-queue-1.
+ * If driver support it, then declare RTE_DMA_DEV_CAPA_MT_MVQ.
+ * If driver don't support it, it's up to the application to guarantee
+ * MT-safe.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rte_common.h>
+#include <rte_memory.h>
+#include <rte_errno.h>
+#include <rte_compat.h>
+
+/**
+ * dma_cookie_t - an opaque DMA cookie
+ *
+ * If dma_cookie_t is >=0 it's a DMA operation request cookie, <0 it's a error
+ * code.
+ * When using cookies, comply with the following rules:
+ * a) Cookies for each virtual queue are independent.
+ * b) For a virt queue, the cookie are monotonically incremented, when it reach
+ * the INT_MAX, it wraps back to zero.
+ * c) The initial cookie of a virt queue is zero, after the device is stopped or
+ * reset, the virt queue's cookie needs to be reset to zero.
+ * Example:
+ * step-1: start one dmadev
+ * step-2: enqueue a copy operation, the cookie return is 0
+ * step-3: enqueue a copy operation again, the cookie return is 1
+ * ...
+ * step-101: stop the dmadev
+ * step-102: start the dmadev
+ * step-103: enqueue a copy operation, the cookie return is 0
+ * ...
+ */
+typedef int32_t dma_cookie_t;
+
+/**
+ * dma_scatterlist - can hold scatter DMA operation request
+ */
+struct dma_scatterlist {
+ void *src;
+ void *dst;
+ uint32_t length;
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Get the total number of DMA devices that have been successfully
+ * initialised.
+ *
+ * @return
+ * The total number of usable DMA devices.
+ */
+__rte_experimental
+uint16_t
+rte_dmadev_count(void);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Get the device identifier for the named DMA device.
+ *
+ * @param name
+ * DMA device name to select the DMA device identifier.
+ *
+ * @return
+ * Returns DMA device identifier on success.
+ * - <0: Failure to find named DMA device.
+ */
+__rte_experimental
+int
+rte_dmadev_get_dev_id(const char *name);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Return the NUMA socket to which a device is connected.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @return
+ * The NUMA socket id to which the device is connected or
+ * a default of zero if the socket could not be determined.
+ * - -EINVAL: dev_id value is out of range.
+ */
+__rte_experimental
+int
+rte_dmadev_socket_id(uint16_t dev_id);
+
+/**
+ * The capabilities of a DMA device
+ */
+#define RTE_DMA_DEV_CAPA_M2M (1ull << 0) /**< Support mem-to-mem transfer */
+#define RTE_DMA_DEV_CAPA_M2D (1ull << 1) /**< Support mem-to-dev transfer */
+#define RTE_DMA_DEV_CAPA_D2M (1ull << 2) /**< Support dev-to-mem transfer */
+#define RTE_DMA_DEV_CAPA_D2D (1ull << 3) /**< Support dev-to-dev transfer */
+#define RTE_DMA_DEV_CAPA_COPY (1ull << 4) /**< Support copy ops */
+#define RTE_DMA_DEV_CAPA_FILL (1ull << 5) /**< Support fill ops */
+#define RTE_DMA_DEV_CAPA_SG (1ull << 6) /**< Support scatter-gather ops */
+#define RTE_DMA_DEV_CAPA_FENCE (1ull << 7) /**< Support fence ops */
+#define RTE_DMA_DEV_CAPA_IOVA (1ull << 8) /**< Support IOVA as DMA address */
+#define RTE_DMA_DEV_CAPA_VA (1ull << 9) /**< Support VA as DMA address */
+#define RTE_DMA_DEV_CAPA_MT_VQ (1ull << 10) /**< Support MT-safe of one virt queue */
+#define RTE_DMA_DEV_CAPA_MT_MVQ (1ull << 11) /**< Support MT-safe of multiple virt queues */
+
+/**
+ * A structure used to retrieve the contextual information of
+ * an DMA device
+ */
+struct rte_dmadev_info {
+ /**
+ * Fields filled by framewok
+ */
+ struct rte_device *device; /**< Generic Device information */
+ const char *driver_name; /**< Device driver name */
+ int socket_id; /**< Socket ID where memory is allocated */
+
+ /**
+ * Specification fields filled by driver
+ */
+ uint64_t dev_capa; /**< Device capabilities (RTE_DMA_DEV_CAPA_) */
+ uint16_t max_hw_queues; /**< Maximum number of HW queues. */
+ uint16_t max_vqs_per_hw_queue;
+ /**< Maximum number of virt queues to allocate per HW queue */
+ uint16_t max_desc;
+ /**< Maximum allowed number of virt queue descriptors */
+ uint16_t min_desc;
+ /**< Minimum allowed number of virt queue descriptors */
+
+ /**
+ * Status fields filled by driver
+ */
+ uint16_t nb_hw_queues; /**< Number of HW queues configured */
+ uint16_t nb_vqs; /**< Number of virt queues configured */
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Retrieve the contextual information of a DMA device.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @param[out] dev_info
+ * A pointer to a structure of type *rte_dmadev_info* to be filled with the
+ * contextual information of the device.
+ * @return
+ * - =0: Success, driver updates the contextual information of the DMA device
+ * - <0: Error code returned by the driver info get function.
+ *
+ */
+__rte_experimental
+int
+rte_dmadev_info_get(uint16_t dev_id, struct rte_dmadev_info *dev_info);
+
+/**
+ * dma_address_type
+ */
+enum dma_address_type {
+ DMA_ADDRESS_TYPE_IOVA, /**< Use IOVA as dma address */
+ DMA_ADDRESS_TYPE_VA, /**< Use VA as dma address */
+};
+
+/**
+ * A structure used to configure a DMA device.
+ */
+struct rte_dmadev_conf {
+ enum dma_address_type addr_type; /**< Address type to used */
+ uint16_t nb_hw_queues; /**< Number of HW-queues enable to use */
+ uint16_t max_vqs; /**< Maximum number of virt queues to use */
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Configure a DMA device.
+ *
+ * This function must be invoked first before any other function in the
+ * API. This function can also be re-invoked when a device is in the
+ * stopped state.
+ *
+ * The caller may use rte_dmadev_info_get() to get the capability of each
+ * resources available for this DMA device.
+ *
+ * @param dev_id
+ * The identifier of the device to configure.
+ * @param dev_conf
+ * The DMA device configuration structure encapsulated into rte_dmadev_conf
+ * object.
+ *
+ * @return
+ * - =0: Success, device configured.
+ * - <0: Error code returned by the driver configuration function.
+ */
+__rte_experimental
+int
+rte_dmadev_configure(uint16_t dev_id, const struct rte_dmadev_conf *dev_conf);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Start a DMA device.
+ *
+ * The device start step is the last one and consists of setting the DMA
+ * to start accepting jobs.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @return
+ * - =0: Success, device started.
+ * - <0: Error code returned by the driver start function.
+ */
+__rte_experimental
+int
+rte_dmadev_start(uint16_t dev_id);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Stop a DMA device.
+ *
+ * The device can be restarted with a call to rte_dmadev_start()
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @return
+ * - =0: Success, device stopped.
+ * - <0: Error code returned by the driver stop function.
+ */
+__rte_experimental
+int
+rte_dmadev_stop(uint16_t dev_id);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Close a DMA device.
+ *
+ * The device cannot be restarted after this call.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @return
+ * - =0: Successfully closing device
+ * - <0: Failure to close device
+ */
+__rte_experimental
+int
+rte_dmadev_close(uint16_t dev_id);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Reset a DMA device.
+ *
+ * This is different from cycle of rte_dmadev_start->rte_dmadev_stop in the
+ * sense similar to hard or soft reset.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @return
+ * - =0: Successful reset device.
+ * - <0: Failure to reset device.
+ * - (-ENOTSUP): If the device doesn't support this function.
+ */
+__rte_experimental
+int
+rte_dmadev_reset(uint16_t dev_id);
+
+/**
+ * dma_transfer_direction
+ */
+enum dma_transfer_direction {
+ DMA_MEM_TO_MEM,
+ DMA_MEM_TO_DEV,
+ DMA_DEV_TO_MEM,
+ DMA_DEV_TO_DEV,
+};
+
+/**
+ * A structure used to configure a DMA virt queue.
+ */
+struct rte_dmadev_queue_conf {
+ enum dma_transfer_direction direction;
+ /**< Associated transfer direction */
+ uint16_t hw_queue_id; /**< The HW queue on which to create virt queue */
+ uint16_t nb_desc; /**< Number of descriptor for this virt queue */
+ uint64_t dev_flags; /**< Device specific flags */
+ void *dev_ctx; /**< Device specific context */
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Allocate and set up a virt queue.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param conf
+ * The queue configuration structure encapsulated into rte_dmadev_queue_conf
+ * object.
+ *
+ * @return
+ * - >=0: Allocate virt queue success, it is virt queue id.
+ * - <0: Error code returned by the driver queue setup function.
+ */
+__rte_experimental
+int
+rte_dmadev_queue_setup(uint16_t dev_id,
+ const struct rte_dmadev_queue_conf *conf);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Release a virt queue.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue which return by queue setup.
+ *
+ * @return
+ * - =0: Successful release the virt queue.
+ * - <0: Error code returned by the driver queue release function.
+ */
+__rte_experimental
+int
+rte_dmadev_queue_release(uint16_t dev_id, uint16_t vq_id);
+
+/**
+ * A structure used to retrieve information of a DMA virt queue.
+ */
+struct rte_dmadev_queue_info {
+ enum dma_transfer_direction direction;
+ /**< Associated transfer direction */
+ uint16_t hw_queue_id; /**< The HW queue on which to create virt queue */
+ uint16_t nb_desc; /**< Number of descriptor for this virt queue */
+ uint64_t dev_flags; /**< Device specific flags */
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Retrieve information of a DMA virt queue.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue which return by queue setup.
+ * @param[out] info
+ * The queue info structure encapsulated into rte_dmadev_queue_info object.
+ *
+ * @return
+ * - =0: Successful retrieve information.
+ * - <0: Error code returned by the driver queue release function.
+ */
+__rte_experimental
+int
+rte_dmadev_queue_info_get(uint16_t dev_id, uint16_t vq_id,
+ struct rte_dmadev_queue_info *info);
+
+#include "rte_dmadev_core.h"
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue a copy operation onto the DMA virt queue.
+ *
+ * This queues up a copy operation to be performed by hardware, but does not
+ * trigger hardware to begin that operation.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ * @param src
+ * The address of the source buffer.
+ * @param dst
+ * The address of the destination buffer.
+ * @param length
+ * The length of the data to be copied.
+ * @param flags
+ * An opaque flags for this operation.
+ *
+ * @return
+ * dma_cookie_t: please refer to the corresponding definition.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline dma_cookie_t
+rte_dmadev_copy(uint16_t dev_id, uint16_t vq_id, void *src, void *dst,
+ uint32_t length, uint64_t flags)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ return (*dev->copy)(dev, vq_id, src, dst, length, flags);
+}
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue a scatter list copy operation onto the DMA virt queue.
+ *
+ * This queues up a scatter list copy operation to be performed by hardware,
+ * but does not trigger hardware to begin that operation.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ * @param sg
+ * The pointer of scatterlist.
+ * @param sg_len
+ * The number of scatterlist elements.
+ * @param flags
+ * An opaque flags for this operation.
+ *
+ * @return
+ * dma_cookie_t: please refer to the corresponding definition.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline dma_cookie_t
+rte_dmadev_copy_sg(uint16_t dev_id, uint16_t vq_id,
+ const struct dma_scatterlist *sg,
+ uint32_t sg_len, uint64_t flags)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ return (*dev->copy_sg)(dev, vq_id, sg, sg_len, flags);
+}
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue a fill operation onto the DMA virt queue
+ *
+ * This queues up a fill operation to be performed by hardware, but does not
+ * trigger hardware to begin that operation.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ * @param pattern
+ * The pattern to populate the destination buffer with.
+ * @param dst
+ * The address of the destination buffer.
+ * @param length
+ * The length of the destination buffer.
+ * @param flags
+ * An opaque flags for this operation.
+ *
+ * @return
+ * dma_cookie_t: please refer to the corresponding definition.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline dma_cookie_t
+rte_dmadev_fill(uint16_t dev_id, uint16_t vq_id, uint64_t pattern,
+ void *dst, uint32_t length, uint64_t flags)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ return (*dev->fill)(dev, vq_id, pattern, dst, length, flags);
+}
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Enqueue a scatter list fill operation onto the DMA virt queue
+ *
+ * This queues up a scatter list fill operation to be performed by hardware,
+ * but does not trigger hardware to begin that operation.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ * @param pattern
+ * The pattern to populate the destination buffer with.
+ * @param sg
+ * The pointer of scatterlist.
+ * @param sg_len
+ * The number of scatterlist elements.
+ * @param flags
+ * An opaque flags for this operation.
+ *
+ * @return
+ * dma_cookie_t: please refer to the corresponding definition.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline dma_cookie_t
+rte_dmadev_fill_sg(uint16_t dev_id, uint16_t vq_id, uint64_t pattern,
+ const struct dma_scatterlist *sg, uint32_t sg_len,
+ uint64_t flags)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ return (*dev->fill_sg)(dev, vq_id, pattern, sg, sg_len, flags);
+}
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Add a fence to force ordering between operations
+ *
+ * This adds a fence to a sequence of operations to enforce ordering, such that
+ * all operations enqueued before the fence must be completed before operations
+ * after the fence.
+ * NOTE: Since this fence may be added as a flag to the last operation enqueued,
+ * this API may not function correctly when called immediately after an
+ * "rte_dmadev_perform" call i.e. before any new operations are enqueued.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ *
+ * @return
+ * - =0: Successful add fence.
+ * - <0: Failure to add fence.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline int
+rte_dmadev_fence(uint16_t dev_id, uint16_t vq_id)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ return (*dev->fence)(dev, vq_id);
+}
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Trigger hardware to begin performing enqueued operations
+ *
+ * This API is used to write the "doorbell" to the hardware to trigger it
+ * to begin the operations previously enqueued by rte_dmadev_copy/fill()
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ *
+ * @return
+ * - =0: Successful trigger hardware.
+ * - <0: Failure to trigger hardware.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline int
+rte_dmadev_perform(uint16_t dev_id, uint16_t vq_id)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ return (*dev->perform)(dev, vq_id);
+}
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Returns the number of operations that have been successful completed.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ * @param nb_cpls
+ * The maximum number of completed operations that can be processed.
+ * @param[out] cookie
+ * The last completed operation's cookie.
+ * @param[out] has_error
+ * Indicates if there are transfer error.
+ *
+ * @return
+ * The number of operations that successful completed.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline uint16_t
+rte_dmadev_completed(uint16_t dev_id, uint16_t vq_id, const uint16_t nb_cpls,
+ dma_cookie_t *cookie, bool *has_error)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ has_error = false;
+ return (*dev->completed)(dev, vq_id, nb_cpls, cookie, has_error);
+}
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Returns the number of operations that failed to complete.
+ * NOTE: This API was used when rte_dmadev_completed has_error was set.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue.
+ * @param nb_status
+ * Indicates the size of status array.
+ * @param[out] status
+ * The error code of operations that failed to complete.
+ * @param[out] cookie
+ * The last failed completed operation's cookie.
+ *
+ * @return
+ * The number of operations that failed to complete.
+ *
+ * NOTE: The caller must ensure that the input parameter is valid and the
+ * corresponding device supports the operation.
+ */
+__rte_experimental
+static inline uint16_t
+rte_dmadev_completed_fails(uint16_t dev_id, uint16_t vq_id,
+ const uint16_t nb_status, uint32_t *status,
+ dma_cookie_t *cookie)
+{
+ struct rte_dmadev *dev = &rte_dmadevices[dev_id];
+ return (*dev->completed_fails)(dev, vq_id, nb_status, status, cookie);
+}
+
+struct rte_dmadev_stats {
+ uint64_t enqueue_fail_count;
+ /**< Conut of all operations which failed enqueued */
+ uint64_t enqueued_count;
+ /**< Count of all operations which successful enqueued */
+ uint64_t completed_fail_count;
+ /**< Count of all operations which failed to complete */
+ uint64_t completed_count;
+ /**< Count of all operations which successful complete */
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Retrieve basic statistics of a or all DMA virt queue(s).
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue, -1 means all virt queues.
+ * @param[out] stats
+ * The basic statistics structure encapsulated into rte_dmadev_stats
+ * object.
+ *
+ * @return
+ * - =0: Successful retrieve stats.
+ * - <0: Failure to retrieve stats.
+ */
+__rte_experimental
+int
+rte_dmadev_stats_get(uint16_t dev_id, int vq_id,
+ struct rte_dmadev_stats *stats);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Reset basic statistics of a or all DMA virt queue(s).
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param vq_id
+ * The identifier of virt queue, -1 means all virt queues.
+ *
+ * @return
+ * - =0: Successful retrieve stats.
+ * - <0: Failure to retrieve stats.
+ */
+__rte_experimental
+int
+rte_dmadev_stats_reset(uint16_t dev_id, int vq_id);
+
+/** Maximum name length for extended statistics counters */
+#define RTE_DMA_DEV_XSTATS_NAME_SIZE 64
+
+/**
+ * A name-key lookup element for extended statistics.
+ *
+ * This structure is used to map between names and ID numbers
+ * for extended ethdev statistics.
+ */
+struct rte_dmadev_xstats_name {
+ char name[RTE_DMA_DEV_XSTATS_NAME_SIZE];
+};
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Retrieve names of extended statistics of a DMA device.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param[out] xstats_names
+ * Block of memory to insert names into. Must be at least size in capacity.
+ * If set to NULL, function returns required capacity.
+ * @param size
+ * Capacity of xstats_names (number of names).
+ * @return
+ * - positive value lower or equal to size: success. The return value
+ * is the number of entries filled in the stats table.
+ * - positive value higher than size: error, the given statistics table
+ * is too small. The return value corresponds to the size that should
+ * be given to succeed. The entries in the table are not valid and
+ * shall not be used by the caller.
+ * - negative value on error.
+ */
+__rte_experimental
+int
+rte_dmadev_xstats_names_get(uint16_t dev_id,
+ struct rte_dmadev_xstats_name *xstats_names,
+ uint32_t size);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Retrieve extended statistics of a DMA device.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param ids
+ * The id numbers of the stats to get. The ids can be got from the stat
+ * position in the stat list from rte_dmadev_get_xstats_names().
+ * @param[out] values
+ * The values for each stats request by ID.
+ * @param n
+ * The number of stats requested.
+ *
+ * @return
+ * - positive value: number of stat entries filled into the values array.
+ * - negative value on error.
+ */
+__rte_experimental
+int
+rte_dmadev_xstats_get(uint16_t dev_id, const uint32_t ids[],
+ uint64_t values[], uint32_t n);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Reset the values of the xstats of the selected component in the device.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ * @param ids
+ * Selects specific statistics to be reset. When NULL, all statistics
+ * will be reset. If non-NULL, must point to array of at least
+ * *nb_ids* size.
+ * @param nb_ids
+ * The number of ids available from the *ids* array. Ignored when ids is NULL.
+ *
+ * @return
+ * - zero: successfully reset the statistics to zero.
+ * - negative value on error.
+ */
+__rte_experimental
+int
+rte_dmadev_xstats_reset(uint16_t dev_id, const uint32_t ids[], uint32_t nb_ids);
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice.
+ *
+ * Trigger the dmadev self test.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @return
+ * - 0: Selftest successful.
+ * - -ENOTSUP if the device doesn't support selftest
+ * - other values < 0 on failure.
+ */
+__rte_experimental
+int
+rte_dmadev_selftest(uint16_t dev_id);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_DMADEV_H_ */
diff --git a/lib/dmadev/rte_dmadev_core.h b/lib/dmadev/rte_dmadev_core.h
new file mode 100644
index 0000000..a3afea2
--- /dev/null
+++ b/lib/dmadev/rte_dmadev_core.h
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2021 HiSilicon Limited.
+ */
+
+#ifndef _RTE_DMADEV_CORE_H_
+#define _RTE_DMADEV_CORE_H_
+
+/**
+ * @file
+ *
+ * RTE DMA Device internal header.
+ *
+ * This header contains internal data types. But they are still part of the
+ * public API because they are used by inline public functions.
+ */
+
+struct rte_dmadev;
+
+typedef dma_cookie_t (*dmadev_copy_t)(struct rte_dmadev *dev, uint16_t vq_id,
+ void *src, void *dst,
+ uint32_t length, uint64_t flags);
+/**< @internal Function used to enqueue a copy operation. */
+
+typedef dma_cookie_t (*dmadev_copy_sg_t)(struct rte_dmadev *dev, uint16_t vq_id,
+ const struct dma_scatterlist *sg,
+ uint32_t sg_len, uint64_t flags);
+/**< @internal Function used to enqueue a scatter list copy operation. */
+
+typedef dma_cookie_t (*dmadev_fill_t)(struct rte_dmadev *dev, uint16_t vq_id,
+ uint64_t pattern, void *dst,
+ uint32_t length, uint64_t flags);
+/**< @internal Function used to enqueue a fill operation. */
+
+typedef dma_cookie_t (*dmadev_fill_sg_t)(struct rte_dmadev *dev, uint16_t vq_id,
+ uint64_t pattern, const struct dma_scatterlist *sg,
+ uint32_t sg_len, uint64_t flags);
+/**< @internal Function used to enqueue a scatter list fill operation. */
+
+typedef int (*dmadev_fence_t)(struct rte_dmadev *dev, uint16_t vq_id);
+/**< @internal Function used to add a fence ordering between operations. */
+
+typedef int (*dmadev_perform_t)(struct rte_dmadev *dev, uint16_t vq_id);
+/**< @internal Function used to trigger hardware to begin performing. */
+
+typedef uint16_t (*dmadev_completed_t)(struct rte_dmadev *dev, uint16_t vq_id,
+ const uint16_t nb_cpls,
+ dma_cookie_t *cookie, bool *has_error);
+/**< @internal Function used to return number of successful completed operations */
+
+typedef uint16_t (*dmadev_completed_fails_t)(struct rte_dmadev *dev,
+ uint16_t vq_id, const uint16_t nb_status,
+ uint32_t *status, dma_cookie_t *cookie);
+/**< @internal Function used to return number of failed completed operations */
+
+#define RTE_DMADEV_NAME_MAX_LEN 64 /**< Max length of name of DMA PMD */
+
+struct rte_dmadev_ops;
+
+/**
+ * The data structure associated with each DMA device.
+ */
+struct rte_dmadev {
+ /**< Enqueue a copy operation onto the DMA device. */
+ dmadev_copy_t copy;
+ /**< Enqueue a scatter list copy operation onto the DMA device. */
+ dmadev_copy_sg_t copy_sg;
+ /**< Enqueue a fill operation onto the DMA device. */
+ dmadev_fill_t fill;
+ /**< Enqueue a scatter list fill operation onto the DMA device. */
+ dmadev_fill_sg_t fill_sg;
+ /**< Add a fence to force ordering between operations. */
+ dmadev_fence_t fence;
+ /**< Trigger hardware to begin performing enqueued operations. */
+ dmadev_perform_t perform;
+ /**< Returns the number of operations that successful completed. */
+ dmadev_completed_t completed;
+ /**< Returns the number of operations that failed to complete. */
+ dmadev_completed_fails_t completed_fails;
+
+ void *dev_private; /**< PMD-specific private data */
+ const struct rte_dmadev_ops *dev_ops; /**< Functions exported by PMD */
+
+ uint16_t dev_id; /**< Device ID for this instance */
+ int socket_id; /**< Socket ID where memory is allocated */
+ struct rte_device *device;
+ /**< Device info. supplied during device initialization */
+ const char *driver_name; /**< Driver info. supplied by probing */
+ char name[RTE_DMADEV_NAME_MAX_LEN]; /**< Device name */
+
+ RTE_STD_C11
+ uint8_t attached : 1; /**< Flag indicating the device is attached */
+ uint8_t started : 1; /**< Device state: STARTED(1)/STOPPED(0) */
+
+} __rte_cache_aligned;
+
+extern struct rte_dmadev rte_dmadevices[];
+
+#endif /* _RTE_DMADEV_CORE_H_ */
diff --git a/lib/dmadev/rte_dmadev_pmd.h b/lib/dmadev/rte_dmadev_pmd.h
new file mode 100644
index 0000000..ef03cf7
--- /dev/null
+++ b/lib/dmadev/rte_dmadev_pmd.h
@@ -0,0 +1,210 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2021 HiSilicon Limited.
+ */
+
+#ifndef _RTE_DMADEV_PMD_H_
+#define _RTE_DMADEV_PMD_H_
+
+/** @file
+ * RTE DMA PMD APIs
+ *
+ * @note
+ * Driver facing APIs for a DMA device. These are not to be called directly by
+ * any application.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <string.h>
+
+#include <rte_dev.h>
+#include <rte_log.h>
+#include <rte_common.h>
+
+#include "rte_dmadev.h"
+
+extern int libdmadev_logtype;
+
+#define RTE_DMADEV_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, libdmadev_logtype, "%s(): " fmt "\n", \
+ __func__, ##args)
+
+/* Macros to check for valid device */
+#define RTE_DMADEV_VALID_DEVID_OR_ERR_RET(dev_id, retval) do { \
+ if (!rte_dmadev_pmd_is_valid_dev((dev_id))) { \
+ RTE_DMADEV_LOG(ERR, "Invalid dev_id=%d", dev_id); \
+ return retval; \
+ } \
+} while (0)
+
+#define RTE_DMADEV_VALID_DEVID_OR_RET(dev_id) do { \
+ if (!rte_dmadev_pmd_is_valid_dev((dev_id))) { \
+ RTE_DMADEV_LOG(ERR, "Invalid dev_id=%d", dev_id); \
+ return; \
+ } \
+} while (0)
+
+#define RTE_DMADEV_DETACHED 0
+#define RTE_DMADEV_ATTACHED 1
+
+/**
+ * Validate if the DMA device index is a valid attached DMA device.
+ *
+ * @param dev_id
+ * DMA device index.
+ *
+ * @return
+ * - If the device index is valid (1) or not (0).
+ */
+static inline unsigned
+rte_dmadev_pmd_is_valid_dev(uint16_t dev_id)
+{
+ struct rte_dmadev *dev;
+
+ if (dev_id >= RTE_DMADEV_MAX_DEVS)
+ return 0;
+
+ dev = &rte_dmadevices[dev_id];
+ if (dev->attached != RTE_DMADEV_ATTACHED)
+ return 0;
+ else
+ return 1;
+}
+
+/**
+ * Definitions of control-plane functions exported by a driver through the
+ * generic structure of type *rte_dmadev_ops* supplied in the *rte_dmadev*
+ * structure associated with a device.
+ */
+
+typedef int (*dmadev_info_get_t)(struct rte_dmadev *dev,
+ struct rte_dmadev_info *dev_info);
+/**< @internal Function used to get device information of a device. */
+
+typedef int (*dmadev_configure_t)(struct rte_dmadev *dev,
+ const struct rte_dmadev_conf *dev_conf);
+/**< @internal Function used to configure a device. */
+
+typedef int (*dmadev_start_t)(struct rte_dmadev *dev);
+/**< @internal Function used to start a configured device. */
+
+typedef int (*dmadev_stop_t)(struct rte_dmadev *dev);
+/**< @internal Function used to stop a configured device. */
+
+typedef int (*dmadev_close_t)(struct rte_dmadev *dev);
+/**< @internal Function used to close a configured device. */
+
+typedef int (*dmadev_reset_t)(struct rte_dmadev *dev);
+/**< @internal Function used to reset a configured device. */
+
+typedef int (*dmadev_queue_setup_t)(struct rte_dmadev *dev,
+ const struct rte_dmadev_queue_conf *conf);
+/**< @internal Function used to allocate and set up a virt queue. */
+
+typedef int (*dmadev_queue_release_t)(struct rte_dmadev *dev, uint16_t vq_id);
+/**< @internal Function used to release a virt queue. */
+
+typedef int (*dmadev_queue_info_t)(struct rte_dmadev *dev, uint16_t vq_id,
+ struct rte_dmadev_queue_info *info);
+/**< @internal Function used to retrieve information of a virt queue. */
+
+typedef int (*dmadev_stats_get_t)(struct rte_dmadev *dev, int vq_id,
+ struct rte_dmadev_stats *stats);
+/**< @internal Function used to retrieve basic statistics. */
+
+typedef int (*dmadev_stats_reset_t)(struct rte_dmadev *dev, int vq_id);
+/**< @internal Function used to reset basic statistics. */
+
+typedef int (*dmadev_xstats_get_names_t)(const struct rte_dmadev *dev,
+ struct rte_dmadev_xstats_name *xstats_names,
+ uint32_t size);
+/**< @internal Function used to get names of extended stats. */
+
+typedef int (*dmadev_xstats_get_t)(const struct rte_dmadev *dev,
+ const uint32_t ids[], uint64_t values[], uint32_t n);
+/**< @internal Function used to retrieve extended stats. */
+
+typedef int (*dmadev_xstats_reset_t)(struct rte_dmadev *dev,
+ const uint32_t ids[], uint32_t nb_ids);
+/**< @internal Function used to reset extended stats. */
+
+typedef int (*dmadev_selftest_t)(uint16_t dev_id);
+/**< @internal Function used to start dmadev selftest. */
+
+/** DMA device operations function pointer table */
+struct rte_dmadev_ops {
+ /**< Get device info. */
+ dmadev_info_get_t dev_info_get;
+ /**< Configure device. */
+ dmadev_configure_t dev_configure;
+ /**< Start device. */
+ dmadev_start_t dev_start;
+ /**< Stop device. */
+ dmadev_stop_t dev_stop;
+ /**< Close device. */
+ dmadev_close_t dev_close;
+ /**< Reset device. */
+ dmadev_reset_t dev_reset;
+
+ /**< Allocate and set up a virt queue. */
+ dmadev_queue_setup_t queue_setup;
+ /**< Release a virt queue. */
+ dmadev_queue_release_t queue_release;
+ /**< Retrieve information of a virt queue */
+ dmadev_queue_info_t queue_info_get;
+
+ /**< Get basic statistics. */
+ dmadev_stats_get_t stats_get;
+ /**< Reset basic statistics. */
+ dmadev_stats_reset_t stats_reset;
+ /**< Get names of extended stats. */
+ dmadev_xstats_get_names_t xstats_get_names;
+ /**< Get extended statistics. */
+ dmadev_xstats_get_t xstats_get;
+ /**< Reset extended statistics values. */
+ dmadev_xstats_reset_t xstats_reset;
+
+ /**< Device selftest function */
+ dmadev_selftest_t dev_selftest;
+};
+
+/**
+ * Allocates a new dmadev slot for an DMA device and returns the pointer
+ * to that slot for the driver to use.
+ *
+ * @param name
+ * Unique identifier name for each device
+ * @param dev_private_size
+ * Size of private data memory allocated within rte_dmadev object.
+ * Set to 0 to disable internal memory allocation and allow for
+ * self-allocation.
+ * @param socket_id
+ * Socket to allocate resources on.
+ *
+ * @return
+ * - NULL: Failure to allocate
+ * - Other: The rte_dmadev structure pointer for the new device
+ */
+struct rte_dmadev *
+rte_dmadev_pmd_allocate(const char *name, size_t dev_private_size,
+ int socket_id);
+
+/**
+ * Release the specified dmadev device.
+ *
+ * @param dev
+ * The *dmadev* pointer is the address of the *rte_dmadev* structure.
+ *
+ * @return
+ * - 0 on success, negative on error
+ */
+int
+rte_dmadev_pmd_release(struct rte_dmadev *dev);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_DMADEV_PMD_H_ */
diff --git a/lib/dmadev/version.map b/lib/dmadev/version.map
new file mode 100644
index 0000000..383b3ca
--- /dev/null
+++ b/lib/dmadev/version.map
@@ -0,0 +1,32 @@
+EXPERIMENTAL {
+ global:
+
+ rte_dmadev_count;
+ rte_dmadev_get_dev_id;
+ rte_dmadev_socket_id;
+ rte_dmadev_info_get;
+ rte_dmadev_configure;
+ rte_dmadev_start;
+ rte_dmadev_stop;
+ rte_dmadev_close;
+ rte_dmadev_reset;
+ rte_dmadev_queue_setup;
+ rte_dmadev_queue_release;
+ rte_dmadev_queue_info_get;
+ rte_dmadev_copy;
+ rte_dmadev_copy_sg;
+ rte_dmadev_fill;
+ rte_dmadev_fill_sg;
+ rte_dmadev_fence;
+ rte_dmadev_perform;
+ rte_dmadev_completed;
+ rte_dmadev_completed_fails;
+ rte_dmadev_stats_get;
+ rte_dmadev_stats_reset;
+ rte_dmadev_xstats_names_get;
+ rte_dmadev_xstats_get;
+ rte_dmadev_xstats_reset;
+ rte_dmadev_selftest;
+
+ local: *;
+};
diff --git a/lib/meson.build b/lib/meson.build
index 1673ca4..68d239f 100644
--- a/lib/meson.build
+++ b/lib/meson.build
@@ -60,6 +60,7 @@ libraries = [
'bpf',
'graph',
'node',
+ 'dmadev',
]
if is_windows
--
2.8.1
next reply other threads:[~2021-07-02 13:21 UTC|newest]
Thread overview: 339+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-02 13:18 Chengwen Feng [this message]
2021-07-02 13:59 ` Bruce Richardson
2021-07-04 9:30 ` Jerin Jacob
2021-07-05 10:52 ` Bruce Richardson
2021-07-05 11:12 ` Morten Brørup
2021-07-05 13:44 ` Bruce Richardson
2021-07-05 15:55 ` Jerin Jacob
2021-07-05 17:16 ` Bruce Richardson
2021-07-07 8:08 ` Jerin Jacob
2021-07-07 8:35 ` Bruce Richardson
2021-07-07 10:34 ` Jerin Jacob
2021-07-07 11:01 ` Bruce Richardson
2021-07-08 3:11 ` fengchengwen
2021-07-08 18:35 ` Jerin Jacob
2021-07-09 9:14 ` Bruce Richardson
2021-07-11 7:14 ` Jerin Jacob
2021-07-12 7:01 ` Morten Brørup
2021-07-12 7:59 ` Jerin Jacob
2021-07-06 8:20 ` fengchengwen
2021-07-06 9:27 ` Bruce Richardson
2021-07-06 3:01 ` fengchengwen
2021-07-06 10:01 ` Bruce Richardson
2021-07-04 14:57 ` Andrew Rybchenko
2021-07-06 3:56 ` fengchengwen
2021-07-06 10:02 ` Bruce Richardson
2021-07-04 15:21 ` Matan Azrad
2021-07-06 6:25 ` fengchengwen
2021-07-06 6:50 ` Matan Azrad
2021-07-06 9:08 ` fengchengwen
2021-07-06 9:17 ` Matan Azrad
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 0/9] dmadev rfc suggested updates Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 1/9] dmadev: add missing exports Bruce Richardson
2021-07-07 8:26 ` David Marchand
2021-07-07 8:36 ` Bruce Richardson
2021-07-07 8:57 ` David Marchand
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 2/9] dmadev: change virtual addresses to IOVA Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 3/9] dmadev: add dump function Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 4/9] dmadev: remove xstats functions Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 5/9] dmadev: drop cookie typedef Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 6/9] dmadev: allow NULL parameters to completed ops call Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 7/9] dmadev: stats structure updates Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 8/9] drivers: add dma driver category Bruce Richardson
2021-07-06 20:28 ` [dpdk-dev] [RFC UPDATE PATCH 9/9] app/test: add basic dmadev unit test Bruce Richardson
2021-07-07 3:16 ` [dpdk-dev] [RFC UPDATE PATCH 0/9] dmadev rfc suggested updates fengchengwen
2021-07-07 8:11 ` Bruce Richardson
2021-07-07 8:14 ` Bruce Richardson
2021-07-07 10:42 ` Jerin Jacob
2021-07-11 9:25 ` [dpdk-dev] [PATCH v2] dmadev: introduce DMA device library Chengwen Feng
2021-07-11 9:42 ` fengchengwen
2021-07-11 13:34 ` Jerin Jacob
2021-07-12 7:40 ` Morten Brørup
2021-07-11 14:25 ` Jerin Jacob
2021-07-12 7:15 ` Morten Brørup
2021-07-12 9:59 ` Jerin Jacob
2021-07-12 13:32 ` Bruce Richardson
2021-07-12 16:34 ` Jerin Jacob
2021-07-12 17:00 ` Bruce Richardson
2021-07-13 8:59 ` Jerin Jacob
2021-07-12 12:05 ` Bruce Richardson
2021-07-12 15:50 ` Bruce Richardson
2021-07-13 9:07 ` Jerin Jacob
2021-07-13 14:19 ` Ananyev, Konstantin
2021-07-13 14:28 ` Bruce Richardson
2021-07-13 12:27 ` [dpdk-dev] [PATCH v3] " Chengwen Feng
2021-07-13 13:06 ` fengchengwen
2021-07-13 13:37 ` Bruce Richardson
2021-07-15 6:44 ` Jerin Jacob
2021-07-15 8:25 ` Bruce Richardson
2021-07-15 9:49 ` Jerin Jacob
2021-07-15 10:00 ` Bruce Richardson
2021-07-13 16:02 ` Bruce Richardson
2021-07-14 12:22 ` Nipun Gupta
2021-07-15 8:29 ` fengchengwen
2021-07-15 11:16 ` Nipun Gupta
2021-07-15 12:11 ` Bruce Richardson
2021-07-15 12:31 ` Jerin Jacob
2021-07-15 12:34 ` Nipun Gupta
2021-07-14 16:05 ` Bruce Richardson
2021-07-15 7:10 ` Jerin Jacob
2021-07-15 9:03 ` Bruce Richardson
2021-07-15 9:30 ` Jerin Jacob
2021-07-15 10:03 ` Bruce Richardson
2021-07-15 10:05 ` Bruce Richardson
2021-07-15 15:41 ` [dpdk-dev] [PATCH v4] " Chengwen Feng
2021-07-15 16:04 ` fengchengwen
2021-07-15 16:33 ` Bruce Richardson
2021-07-16 3:04 ` fengchengwen
2021-07-16 9:50 ` Bruce Richardson
2021-07-16 12:34 ` Jerin Jacob
2021-07-16 12:40 ` Jerin Jacob
2021-07-16 12:48 ` Bruce Richardson
2021-07-16 12:54 ` Jerin Jacob
2021-07-16 2:45 ` [dpdk-dev] [PATCH v5] " Chengwen Feng
2021-07-16 13:20 ` Jerin Jacob
2021-07-16 14:41 ` Bruce Richardson
2021-07-19 3:29 ` [dpdk-dev] [PATCH v6] " Chengwen Feng
2021-07-19 6:21 ` Jerin Jacob
2021-07-19 13:20 ` fengchengwen
2021-07-19 13:36 ` Jerin Jacob
2021-07-19 13:05 ` [dpdk-dev] [PATCH v7] " Chengwen Feng
2021-07-20 1:14 ` [dpdk-dev] [PATCH v8] " Chengwen Feng
2021-07-20 5:03 ` Jerin Jacob
2021-07-20 6:53 ` fengchengwen
2021-07-20 9:43 ` Jerin Jacob
2021-07-20 10:13 ` Bruce Richardson
2021-07-20 11:12 ` [dpdk-dev] [PATCH v9] " Chengwen Feng
2021-07-20 12:05 ` Bruce Richardson
2021-07-20 12:46 ` [dpdk-dev] [PATCH v10] " Chengwen Feng
2021-07-26 6:53 ` fengchengwen
2021-07-26 8:31 ` Bruce Richardson
2021-07-27 3:57 ` fengchengwen
2021-07-26 11:03 ` Morten Brørup
2021-07-26 11:21 ` Jerin Jacob
2021-07-27 3:39 ` [dpdk-dev] [PATCH v11 0/2] support dmadev Chengwen Feng
2021-07-27 3:39 ` [dpdk-dev] [PATCH v11 1/2] dmadev: introduce DMA device library Chengwen Feng
2021-07-28 11:13 ` Bruce Richardson
2021-07-29 1:26 ` fengchengwen
2021-07-29 9:15 ` Bruce Richardson
2021-07-29 13:33 ` fengchengwen
2021-07-29 10:44 ` Jerin Jacob
2021-07-29 13:30 ` fengchengwen
2021-07-27 3:40 ` [dpdk-dev] [PATCH v11 2/2] doc: add dmadev library guide Chengwen Feng
2021-07-29 11:02 ` Jerin Jacob
2021-07-29 13:13 ` fengchengwen
2021-07-29 13:28 ` fengchengwen
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 0/6] support dmadev Chengwen Feng
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 5/6] doc: add DMA device library guide Chengwen Feng
2021-07-29 13:06 ` [dpdk-dev] [PATCH v12 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 0/6] support dmadev Chengwen Feng
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-05 12:56 ` Walsh, Conor
2021-08-05 13:12 ` fengchengwen
2021-08-05 13:44 ` Conor Walsh
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 5/6] doc: add DMA device library guide Chengwen Feng
2021-08-03 14:55 ` Jerin Jacob
2021-08-05 13:15 ` fengchengwen
2021-08-03 11:29 ` [dpdk-dev] [PATCH v13 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-03 11:46 ` [dpdk-dev] [PATCH v13 0/6] support dmadev fengchengwen
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 " Chengwen Feng
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 5/6] doc: add DMA device library guide Chengwen Feng
2021-08-10 15:27 ` Walsh, Conor
2021-08-11 0:47 ` fengchengwen
2021-08-13 9:20 ` fengchengwen
2021-08-13 10:12 ` Walsh, Conor
2021-08-10 11:54 ` [dpdk-dev] [PATCH v14 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-13 9:09 ` [dpdk-dev] [PATCH v15 0/6] support dmadev Chengwen Feng
2021-08-13 9:09 ` [dpdk-dev] [PATCH v15 1/6] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-19 14:52 ` Bruce Richardson
2021-08-23 3:43 ` fengchengwen
2021-08-13 9:09 ` [dpdk-dev] [PATCH v15 2/6] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-13 9:09 ` [dpdk-dev] [PATCH v15 3/6] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-13 9:09 ` [dpdk-dev] [PATCH v15 4/6] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-13 9:09 ` [dpdk-dev] [PATCH v15 5/6] doc: add DMA device library guide Chengwen Feng
2021-08-13 9:09 ` [dpdk-dev] [PATCH v15 6/6] maintainers: add for dmadev Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 0/9] support dmadev Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 1/9] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 2/9] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 3/9] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 4/9] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 5/9] doc: add DMA device library guide Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 6/9] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-08-26 18:39 ` Bruce Richardson
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 7/9] dma/skeleton: add test cases Chengwen Feng
2021-08-23 14:03 ` Bruce Richardson
2021-08-26 9:30 ` fengchengwen
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 8/9] test: enable dmadev skeleton test Chengwen Feng
2021-08-23 3:31 ` [dpdk-dev] [PATCH v16 9/9] maintainers: add for dmadev Chengwen Feng
2021-08-28 7:29 ` [dpdk-dev] [PATCH v17 0/8] support dmadev Chengwen Feng
2021-08-28 7:29 ` [dpdk-dev] [PATCH v17 1/8] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-08-28 7:30 ` [dpdk-dev] [PATCH v17 2/8] dmadev: introduce DMA device library internal header Chengwen Feng
2021-08-28 7:30 ` [dpdk-dev] [PATCH v17 3/8] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-08-28 7:30 ` [dpdk-dev] [PATCH v17 4/8] dmadev: introduce DMA device library implementation Chengwen Feng
2021-08-28 7:30 ` [dpdk-dev] [PATCH v17 5/8] doc: add DMA device library guide Chengwen Feng
2021-08-28 7:30 ` [dpdk-dev] [PATCH v17 6/8] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-08-28 7:30 ` [dpdk-dev] [PATCH v17 7/8] app/test: add dmadev API test Chengwen Feng
2021-08-28 7:30 ` [dpdk-dev] [PATCH v17 8/8] maintainers: add for dmadev Chengwen Feng
2021-08-28 8:25 ` fengchengwen
2021-08-30 8:19 ` Bruce Richardson
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 0/8] support dmadev Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 1/8] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 2/8] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 3/8] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 4/8] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 5/8] doc: add DMA device library guide Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 6/8] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 7/8] app/test: add dmadev API test Chengwen Feng
2021-09-02 10:54 ` [dpdk-dev] [PATCH v18 8/8] maintainers: add for dmadev Chengwen Feng
2021-09-02 11:51 ` Bruce Richardson
2021-09-02 13:39 ` fengchengwen
2021-09-03 12:59 ` Maxime Coquelin
2021-09-04 7:02 ` fengchengwen
2021-09-06 1:46 ` Li, Xiaoyun
2021-09-06 8:00 ` fengchengwen
2021-09-06 2:03 ` Xia, Chenbo
2021-09-06 8:01 ` fengchengwen
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 0/7] support dmadev Chengwen Feng
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 1/7] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-03 11:42 ` Gagandeep Singh
2021-09-04 1:31 ` fengchengwen
2021-09-06 6:48 ` Gagandeep Singh
2021-09-06 7:52 ` fengchengwen
2021-09-06 8:06 ` Jerin Jacob
2021-09-06 8:08 ` Bruce Richardson
2021-09-07 12:55 ` fengchengwen
2021-09-03 13:03 ` Bruce Richardson
2021-09-04 3:05 ` fengchengwen
2021-09-04 10:10 ` Morten Brørup
2021-09-03 15:13 ` Kevin Laatz
2021-09-03 15:35 ` Conor Walsh
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 2/7] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-03 15:13 ` Kevin Laatz
2021-09-03 15:35 ` Conor Walsh
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 3/7] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-03 15:13 ` Kevin Laatz
2021-09-03 15:35 ` Conor Walsh
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 4/7] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-03 15:13 ` Kevin Laatz
2021-09-03 15:30 ` Bruce Richardson
2021-09-03 15:35 ` Conor Walsh
2021-09-04 8:52 ` fengchengwen
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 5/7] doc: add DMA device library guide Chengwen Feng
2021-09-03 15:13 ` Kevin Laatz
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 6/7] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-03 15:14 ` Kevin Laatz
2021-09-04 7:17 ` fengchengwen
2021-09-03 15:36 ` Conor Walsh
2021-09-02 13:13 ` [dpdk-dev] [PATCH v19 7/7] app/test: add dmadev API test Chengwen Feng
2021-09-02 14:11 ` Walsh, Conor
2021-09-03 0:39 ` fengchengwen
2021-09-03 15:38 ` Walsh, Conor
2021-09-04 7:22 ` fengchengwen
2021-09-03 15:14 ` Kevin Laatz
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 0/7] support dmadev Chengwen Feng
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 1/7] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 2/7] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-06 13:35 ` Bruce Richardson
2021-09-07 13:05 ` fengchengwen
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 3/7] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 4/7] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 5/7] doc: add DMA device library guide Chengwen Feng
2021-09-04 10:17 ` Jerin Jacob
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 6/7] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-04 10:10 ` [dpdk-dev] [PATCH v20 7/7] app/test: add dmadev API test Chengwen Feng
2021-09-06 13:37 ` [dpdk-dev] [PATCH v20 0/7] support dmadev Bruce Richardson
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 " Chengwen Feng
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 1/7] dmadev: introduce DMA device library public APIs Chengwen Feng
2021-09-09 10:33 ` Thomas Monjalon
2021-09-09 11:18 ` Bruce Richardson
2021-09-09 11:29 ` Thomas Monjalon
2021-09-09 12:45 ` Bruce Richardson
2021-09-09 13:54 ` fengchengwen
2021-09-09 14:26 ` Thomas Monjalon
2021-09-09 14:31 ` Bruce Richardson
2021-09-09 14:28 ` Bruce Richardson
2021-09-09 15:12 ` Morten Brørup
2021-09-09 13:33 ` fengchengwen
2021-09-09 14:19 ` Thomas Monjalon
2021-09-16 3:57 ` fengchengwen
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 2/7] dmadev: introduce DMA device library internal header Chengwen Feng
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 3/7] dmadev: introduce DMA device library PMD header Chengwen Feng
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 4/7] dmadev: introduce DMA device library implementation Chengwen Feng
2021-09-08 9:54 ` Walsh, Conor
2021-09-09 13:25 ` fengchengwen
2021-09-15 13:51 ` Kevin Laatz
2021-09-15 14:34 ` Bruce Richardson
2021-09-15 14:47 ` Kevin Laatz
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 5/7] doc: add DMA device library guide Chengwen Feng
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 6/7] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-07 12:56 ` [dpdk-dev] [PATCH v21 7/7] app/test: add dmadev API test Chengwen Feng
2021-09-16 3:41 ` [dpdk-dev] [PATCH v22 0/5] support dmadev Chengwen Feng
2021-09-16 3:41 ` [dpdk-dev] [PATCH v22 1/5] dmadev: introduce DMA device library Chengwen Feng
2021-09-16 3:41 ` [dpdk-dev] [PATCH v22 2/5] dmadev: add control plane function support Chengwen Feng
2021-09-16 3:41 ` [dpdk-dev] [PATCH v22 3/5] dmadev: add data " Chengwen Feng
2021-09-16 3:41 ` [dpdk-dev] [PATCH v22 4/5] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-16 3:41 ` [dpdk-dev] [PATCH v22 5/5] app/test: add dmadev API test Chengwen Feng
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 0/6] support dmadev Chengwen Feng
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-04 21:12 ` Radha Mohan
2021-10-05 8:24 ` Kevin Laatz
2021-10-05 16:39 ` Radha Mohan
2021-10-08 1:52 ` fengchengwen
2021-10-06 10:26 ` Thomas Monjalon
2021-10-08 7:13 ` fengchengwen
2021-10-08 10:09 ` Thomas Monjalon
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 2/6] dmadev: add control plane function support Chengwen Feng
2021-10-05 10:16 ` Matan Azrad
2021-10-08 3:28 ` fengchengwen
2021-10-06 10:46 ` Thomas Monjalon
2021-10-08 7:55 ` fengchengwen
2021-10-08 10:18 ` Thomas Monjalon
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 3/6] dmadev: add data " Chengwen Feng
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 4/6] dmadev: add multi-process support Chengwen Feng
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-09-24 10:53 ` [dpdk-dev] [PATCH v23 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-09 9:33 ` [dpdk-dev] [PATCH v24 0/6] support dmadev Chengwen Feng
2021-10-09 9:33 ` [dpdk-dev] [PATCH v24 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-09 9:33 ` [dpdk-dev] [PATCH v24 2/6] dmadev: add control plane API support Chengwen Feng
2021-10-09 9:33 ` [dpdk-dev] [PATCH v24 3/6] dmadev: add data " Chengwen Feng
2021-10-09 10:03 ` fengchengwen
2021-10-11 10:40 ` Bruce Richardson
2021-10-11 12:31 ` fengchengwen
2021-10-09 9:33 ` [dpdk-dev] [PATCH v24 4/6] dmadev: add multi-process support Chengwen Feng
2021-10-09 9:33 ` [dpdk-dev] [PATCH v24 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-10-09 9:33 ` [dpdk-dev] [PATCH v24 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-11 7:33 ` [dpdk-dev] [PATCH v25 0/6] support dmadev Chengwen Feng
2021-10-11 7:33 ` [dpdk-dev] [PATCH v25 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-12 19:09 ` Thomas Monjalon
2021-10-13 0:21 ` fengchengwen
2021-10-13 7:41 ` Thomas Monjalon
2021-10-15 8:29 ` Thomas Monjalon
2021-10-15 9:59 ` fengchengwen
2021-10-15 13:46 ` Thomas Monjalon
2021-10-11 7:33 ` [dpdk-dev] [PATCH v25 2/6] dmadev: add control plane API support Chengwen Feng
2021-10-11 15:44 ` Bruce Richardson
2021-10-12 3:57 ` fengchengwen
2021-10-12 18:57 ` Thomas Monjalon
2021-10-11 7:33 ` [dpdk-dev] [PATCH v25 3/6] dmadev: add data " Chengwen Feng
2021-10-11 7:33 ` [dpdk-dev] [PATCH v25 4/6] dmadev: add multi-process support Chengwen Feng
2021-10-11 7:33 ` [dpdk-dev] [PATCH v25 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-10-11 7:33 ` [dpdk-dev] [PATCH v25 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-13 12:24 ` [dpdk-dev] [PATCH v26 0/6] support dmadev Chengwen Feng
2021-10-13 12:24 ` [dpdk-dev] [PATCH v26 1/6] dmadev: introduce DMA device library Chengwen Feng
2021-10-13 12:24 ` [dpdk-dev] [PATCH v26 2/6] dmadev: add control plane API support Chengwen Feng
2021-10-13 12:24 ` [dpdk-dev] [PATCH v26 3/6] dmadev: add data " Chengwen Feng
2021-10-13 12:24 ` [dpdk-dev] [PATCH v26 4/6] dmadev: add multi-process support Chengwen Feng
2021-10-13 12:24 ` [dpdk-dev] [PATCH v26 5/6] dma/skeleton: introduce skeleton dmadev driver Chengwen Feng
2021-10-13 12:25 ` [dpdk-dev] [PATCH v26 6/6] app/test: add dmadev API test Chengwen Feng
2021-10-17 19:17 ` [dpdk-dev] [PATCH v26 0/6] support dmadev Thomas Monjalon
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