From: Andrew Rybchenko <arybchenko@solarflare.com>
To: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH 38/56] net/sfc: implement event queue support
Date: Mon, 21 Nov 2016 15:00:52 +0000 [thread overview]
Message-ID: <1479740470-6723-39-git-send-email-arybchenko@solarflare.com> (raw)
In-Reply-To: <1479740470-6723-1-git-send-email-arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
drivers/net/sfc/efx/Makefile | 1 +
drivers/net/sfc/efx/sfc.c | 17 ++
drivers/net/sfc/efx/sfc.h | 7 +
drivers/net/sfc/efx/sfc_ev.c | 484 +++++++++++++++++++++++++++++++++++++++++++
drivers/net/sfc/efx/sfc_ev.h | 138 ++++++++++++
5 files changed, 647 insertions(+)
create mode 100644 drivers/net/sfc/efx/sfc_ev.c
create mode 100644 drivers/net/sfc/efx/sfc_ev.h
diff --git a/drivers/net/sfc/efx/Makefile b/drivers/net/sfc/efx/Makefile
index 2d2f9b8..a0b388f 100644
--- a/drivers/net/sfc/efx/Makefile
+++ b/drivers/net/sfc/efx/Makefile
@@ -85,6 +85,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_kvargs.c
SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc.c
SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_mcdi.c
SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_intr.c
+SRCS-$(CONFIG_RTE_LIBRTE_SFC_EFX_PMD) += sfc_ev.c
VPATH += $(SRCDIR)/base
diff --git a/drivers/net/sfc/efx/sfc.c b/drivers/net/sfc/efx/sfc.c
index d66ea4a..6870efe 100644
--- a/drivers/net/sfc/efx/sfc.c
+++ b/drivers/net/sfc/efx/sfc.c
@@ -36,6 +36,7 @@
#include "sfc.h"
#include "sfc_log.h"
+#include "sfc_ev.h"
int
@@ -261,10 +262,17 @@ sfc_start(struct sfc_adapter *sa)
if (rc != 0)
goto fail_intr_start;
+ rc = sfc_ev_start(sa);
+ if (rc != 0)
+ goto fail_ev_start;
+
sa->state = SFC_ADAPTER_STARTED;
sfc_log_init(sa, "done");
return 0;
+fail_ev_start:
+ sfc_intr_stop(sa);
+
fail_intr_start:
efx_nic_fini(sa->nic);
@@ -297,6 +305,7 @@ sfc_stop(struct sfc_adapter *sa)
sa->state = SFC_ADAPTER_STOPPING;
+ sfc_ev_stop(sa);
sfc_intr_stop(sa);
efx_nic_fini(sa->nic);
@@ -324,10 +333,17 @@ sfc_configure(struct sfc_adapter *sa)
if (rc != 0)
goto fail_intr_init;
+ rc = sfc_ev_init(sa);
+ if (rc != 0)
+ goto fail_ev_init;
+
sa->state = SFC_ADAPTER_CONFIGURED;
sfc_log_init(sa, "done");
return 0;
+fail_ev_init:
+ sfc_intr_fini(sa);
+
fail_intr_init:
fail_check_conf:
sa->state = SFC_ADAPTER_INITIALIZED;
@@ -345,6 +361,7 @@ sfc_close(struct sfc_adapter *sa)
SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
sa->state = SFC_ADAPTER_CLOSING;
+ sfc_ev_fini(sa);
sfc_intr_fini(sa);
sa->state = SFC_ADAPTER_INITIALIZED;
diff --git a/drivers/net/sfc/efx/sfc.h b/drivers/net/sfc/efx/sfc.h
index 2b1c784..eb8c071 100644
--- a/drivers/net/sfc/efx/sfc.h
+++ b/drivers/net/sfc/efx/sfc.h
@@ -113,6 +113,8 @@ struct sfc_intr {
efx_intr_type_t type;
};
+struct sfc_evq_info;
+
/* Adapter private data */
struct sfc_adapter {
/*
@@ -137,6 +139,11 @@ struct sfc_adapter {
unsigned int rxq_max;
unsigned int txq_max;
+
+ unsigned int evq_count;
+ struct sfc_evq_info *evq_info;
+
+ unsigned int mgmt_evq_index;
};
/*
diff --git a/drivers/net/sfc/efx/sfc_ev.c b/drivers/net/sfc/efx/sfc_ev.c
new file mode 100644
index 0000000..852051c
--- /dev/null
+++ b/drivers/net/sfc/efx/sfc_ev.c
@@ -0,0 +1,484 @@
+/*-
+ * Copyright (c) 2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <rte_debug.h>
+#include <rte_cycles.h>
+
+#include "efx.h"
+
+#include "sfc.h"
+#include "sfc_debug.h"
+#include "sfc_log.h"
+#include "sfc_ev.h"
+
+
+/* Initial delay when waiting for event queue init complete event */
+#define SFC_EVQ_INIT_BACKOFF_START_US (1)
+/* Maximum delay between event queue polling attempts */
+#define SFC_EVQ_INIT_BACKOFF_MAX_US (10 * 1000)
+/* Event queue init approx timeout */
+#define SFC_EVQ_INIT_TIMEOUT_US (2 * US_PER_S)
+
+
+static boolean_t
+sfc_ev_initialized(void *arg)
+{
+ struct sfc_evq *evq = arg;
+
+ /* Init done events may be duplicated on SFN7xxx (SFC bug 31631) */
+ SFC_ASSERT(evq->init_state == SFC_EVQ_STARTING ||
+ evq->init_state == SFC_EVQ_STARTED);
+
+ evq->init_state = SFC_EVQ_STARTED;
+
+ return B_FALSE;
+}
+
+static boolean_t
+sfc_ev_rx(void *arg, uint32_t label, uint32_t id, uint32_t size, uint16_t flags)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected Rx event", evq->evq_index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_tx(void *arg, uint32_t label, uint32_t id)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected Tx event", evq->evq_index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_exception(void *arg, uint32_t code, uint32_t data)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected exception event",
+ evq->evq_index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_rxq_flush_done(void *arg, uint32_t rxq_hw_index)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected Rx flush done event",
+ evq->evq_index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_rxq_flush_failed(void *arg, uint32_t rxq_hw_index)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected Rx flush failed event",
+ evq->evq_index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_txq_flush_done(void *arg, uint32_t txq_hw_index)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected Tx flush done event",
+ evq->evq_index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_software(void *arg, uint16_t magic)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected software event magic=%#.4x",
+ evq->evq_index, magic);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_sram(void *arg, uint32_t code)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected SRAM event code=%u",
+ evq->evq_index, code);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_wake_up(void *arg, uint32_t index)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected wake up event index=%u",
+ evq->evq_index, index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_timer(void *arg, uint32_t index)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected timer event index=%u",
+ evq->evq_index, index);
+ return B_TRUE;
+}
+
+static boolean_t
+sfc_ev_link_change(void *arg, efx_link_mode_t link_mode)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa, "EVQ %u unexpected link change",
+ evq->evq_index);
+ return B_TRUE;
+}
+
+static const efx_ev_callbacks_t sfc_ev_callbacks = {
+ .eec_initialized = sfc_ev_initialized,
+ .eec_rx = sfc_ev_rx,
+ .eec_tx = sfc_ev_tx,
+ .eec_exception = sfc_ev_exception,
+ .eec_rxq_flush_done = sfc_ev_rxq_flush_done,
+ .eec_rxq_flush_failed = sfc_ev_rxq_flush_failed,
+ .eec_txq_flush_done = sfc_ev_txq_flush_done,
+ .eec_software = sfc_ev_software,
+ .eec_sram = sfc_ev_sram,
+ .eec_wake_up = sfc_ev_wake_up,
+ .eec_timer = sfc_ev_timer,
+ .eec_link_change = sfc_ev_link_change,
+};
+
+
+void
+sfc_ev_qpoll(struct sfc_evq *evq)
+{
+ SFC_ASSERT(evq->init_state == SFC_EVQ_STARTED ||
+ evq->init_state == SFC_EVQ_STARTING);
+
+ /* Synchronize the DMA memory for reading not required */
+
+ efx_ev_qpoll(evq->common, &evq->read_ptr, &sfc_ev_callbacks, evq);
+
+ /* Poll-mode driver does not re-prime the event queue for interrupts */
+}
+
+int
+sfc_ev_qprime(struct sfc_evq *evq)
+{
+ SFC_ASSERT(evq->init_state == SFC_EVQ_STARTED);
+ return efx_ev_qprime(evq->common, evq->read_ptr);
+}
+
+int
+sfc_ev_qstart(struct sfc_adapter *sa, unsigned int sw_index)
+{
+ const struct sfc_evq_info *evq_info;
+ struct sfc_evq *evq;
+ efsys_mem_t *esmp;
+ unsigned int total_delay_us;
+ unsigned int delay_us;
+ int rc;
+
+ sfc_log_init(sa, "sw_index=%u", sw_index);
+
+ evq_info = &sa->evq_info[sw_index];
+ evq = evq_info->evq;
+ esmp = &evq->mem;
+
+ /* Clear all events */
+ (void)memset((void *)esmp->esm_base, 0xff,
+ EFX_EVQ_SIZE(evq_info->entries));
+
+ /* Create the common code event queue */
+ rc = efx_ev_qcreate(sa->nic, sw_index, esmp, evq_info->entries,
+ 0 /* unused on EF10 */, 0,
+ EFX_EVQ_FLAGS_TYPE_THROUGHPUT |
+ EFX_EVQ_FLAGS_NOTIFY_DISABLED,
+ &evq->common);
+ if (rc != 0)
+ goto fail_ev_qcreate;
+
+ evq->init_state = SFC_EVQ_STARTING;
+
+ /* Wait for the initialization event */
+ total_delay_us = 0;
+ delay_us = SFC_EVQ_INIT_BACKOFF_START_US;
+ do {
+ (void)sfc_ev_qpoll(evq);
+
+ /* Check to see if the initialization complete indication
+ * posted by the hardware.
+ */
+ if (evq->init_state == SFC_EVQ_STARTED)
+ goto done;
+
+ /* Give event queue some time to init */
+ rte_delay_us(delay_us);
+
+ total_delay_us += delay_us;
+
+ /* Exponential backoff */
+ delay_us *= 2;
+ if (delay_us > SFC_EVQ_INIT_BACKOFF_MAX_US)
+ delay_us = SFC_EVQ_INIT_BACKOFF_MAX_US;
+
+ } while (total_delay_us < SFC_EVQ_INIT_TIMEOUT_US);
+
+ rc = ETIMEDOUT;
+ goto fail_timedout;
+
+done:
+ return 0;
+
+fail_timedout:
+ evq->init_state = SFC_EVQ_INITIALIZED;
+ efx_ev_qdestroy(evq->common);
+
+fail_ev_qcreate:
+ sfc_log_init(sa, "failed %d", rc);
+ return rc;
+}
+
+void
+sfc_ev_qstop(struct sfc_adapter *sa, unsigned int sw_index)
+{
+ const struct sfc_evq_info *evq_info;
+ struct sfc_evq *evq;
+
+ sfc_log_init(sa, "sw_index=%u", sw_index);
+
+ SFC_ASSERT(sw_index < sa->evq_count);
+
+ evq_info = &sa->evq_info[sw_index];
+ evq = evq_info->evq;
+
+ if (evq == NULL || evq->init_state != SFC_EVQ_STARTED)
+ return;
+
+ evq->init_state = SFC_EVQ_INITIALIZED;
+ evq->read_ptr = 0;
+ evq->exception = B_FALSE;
+
+ efx_ev_qdestroy(evq->common);
+}
+
+int
+sfc_ev_start(struct sfc_adapter *sa)
+{
+ int rc;
+
+ sfc_log_init(sa, "entry");
+
+ rc = efx_ev_init(sa->nic);
+ if (rc != 0)
+ goto fail_ev_init;
+
+ /*
+ * Rx/Tx event queues are started/stopped when corresponding queue
+ * is started/stopped.
+ */
+
+ return 0;
+
+fail_ev_init:
+ sfc_log_init(sa, "failed %d", rc);
+ return rc;
+}
+
+void
+sfc_ev_stop(struct sfc_adapter *sa)
+{
+ int sw_index;
+
+ sfc_log_init(sa, "entry");
+
+ /* Make sure that all event queues are stopped */
+ sw_index = sa->evq_count;
+ while (--sw_index >= 0)
+ sfc_ev_qstop(sa, sw_index);
+
+ efx_ev_fini(sa->nic);
+}
+
+int
+sfc_ev_qinit(struct sfc_adapter *sa, unsigned int sw_index,
+ unsigned int entries, int socket_id)
+{
+ struct sfc_evq_info *evq_info;
+ struct sfc_evq *evq;
+ int rc;
+
+ sfc_log_init(sa, "sw_index=%u", sw_index);
+
+ evq_info = &sa->evq_info[sw_index];
+
+ SFC_ASSERT(rte_is_power_of_2(entries));
+ SFC_ASSERT(entries <= evq_info->max_entries);
+ evq_info->entries = entries;
+
+ evq = rte_zmalloc_socket("sfc-evq", sizeof(*evq), RTE_CACHE_LINE_SIZE,
+ socket_id);
+ if (evq == NULL)
+ return ENOMEM;
+
+ evq->sa = sa;
+ evq->evq_index = sw_index;
+
+ /* Allocate DMA space */
+ rc = sfc_dma_alloc(sa, "evq", sw_index, EFX_EVQ_SIZE(evq_info->entries),
+ socket_id, &evq->mem);
+ if (rc != 0)
+ return rc;
+
+ evq->init_state = SFC_EVQ_INITIALIZED;
+
+ evq_info->evq = evq;
+
+ return 0;
+}
+
+void
+sfc_ev_qfini(struct sfc_adapter *sa, unsigned int sw_index)
+{
+ struct sfc_evq *evq;
+
+ sfc_log_init(sa, "sw_index=%u", sw_index);
+
+ evq = sa->evq_info[sw_index].evq;
+
+ SFC_ASSERT(evq->init_state == SFC_EVQ_INITIALIZED);
+
+ sa->evq_info[sw_index].evq = NULL;
+
+ sfc_dma_free(sa, &evq->mem);
+
+ rte_free(evq);
+}
+
+static int
+sfc_ev_qinit_info(struct sfc_adapter *sa, unsigned int sw_index)
+{
+ struct sfc_evq_info *evq_info = &sa->evq_info[sw_index];
+ unsigned int max_entries;
+ int rc;
+
+ sfc_log_init(sa, "sw_index=%u", sw_index);
+
+ max_entries = sfc_evq_max_entries(sa, sw_index);
+ SFC_ASSERT(rte_is_power_of_2(max_entries));
+
+ evq_info->max_entries = max_entries;
+
+ return 0;
+}
+
+static void
+sfc_ev_qfini_info(struct sfc_adapter *sa, unsigned int sw_index)
+{
+ struct sfc_evq_info *evq_info = &sa->evq_info[sw_index];
+ int rc;
+
+ sfc_log_init(sa, "sw_index=%u", sw_index);
+
+ /* Nothing to cleanup */
+}
+
+int
+sfc_ev_init(struct sfc_adapter *sa)
+{
+ int sw_index;
+ int rc;
+
+ sfc_log_init(sa, "entry");
+
+ sa->evq_count = sfc_ev_qcount(sa);
+ sa->mgmt_evq_index = 0;
+
+ /* Allocate EVQ info array */
+ rc = ENOMEM;
+ sa->evq_info = rte_calloc_socket("sfc-evqs", sa->evq_count,
+ sizeof(struct sfc_evq_info), 0,
+ sa->socket_id);
+ if (sa->evq_info == NULL)
+ goto fail_evqs_alloc;
+
+ for (sw_index = 0; sw_index < sa->evq_count; ++sw_index) {
+ rc = sfc_ev_qinit_info(sa, sw_index);
+ if (rc != 0)
+ goto fail_ev_qinit_info;
+ }
+
+ /*
+ * Rx/Tx event queues are created/destroyed when corresponding
+ * Rx/Tx queue is created/destroyed.
+ */
+
+ return 0;
+
+fail_ev_qinit_info:
+ while (sw_index-- > 0)
+ sfc_ev_qfini_info(sa, sw_index);
+
+ rte_free(sa->evq_info);
+ sa->evq_info = NULL;
+
+fail_evqs_alloc:
+ sa->evq_count = 0;
+ sfc_log_init(sa, "failed %d", rc);
+ return rc;
+}
+
+void
+sfc_ev_fini(struct sfc_adapter *sa)
+{
+ int sw_index;
+
+ sfc_log_init(sa, "entry");
+
+ /* Cleanup all event queues */
+ sw_index = sa->evq_count;
+ while (--sw_index >= 0) {
+ if (sa->evq_info[sw_index].evq != NULL)
+ sfc_ev_qfini(sa, sw_index);
+ sfc_ev_qfini_info(sa, sw_index);
+ }
+
+ rte_free(sa->evq_info);
+ sa->evq_info = NULL;
+ sa->evq_count = 0;
+}
diff --git a/drivers/net/sfc/efx/sfc_ev.h b/drivers/net/sfc/efx/sfc_ev.h
new file mode 100644
index 0000000..140a436
--- /dev/null
+++ b/drivers/net/sfc/efx/sfc_ev.h
@@ -0,0 +1,138 @@
+/*-
+ * Copyright (c) 2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _SFC_EV_H_
+#define _SFC_EV_H_
+
+#include "efx.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Number of entries in the management event queue */
+#define SFC_MGMT_EVQ_ENTRIES (EFX_EVQ_MINNEVS)
+
+struct sfc_adapter;
+
+enum sfc_evq_state {
+ SFC_EVQ_UNINITIALIZED = 0,
+ SFC_EVQ_INITIALIZED,
+ SFC_EVQ_STARTING,
+ SFC_EVQ_STARTED,
+
+ SFC_EVQ_NSTATES
+};
+
+struct sfc_evq {
+ /* Used on datapath */
+ efx_evq_t *common;
+ unsigned int read_ptr;
+ boolean_t exception;
+ efsys_mem_t mem;
+
+ /* Not used on datapath */
+ struct sfc_adapter *sa;
+ unsigned int evq_index;
+ enum sfc_evq_state init_state;
+};
+
+struct sfc_evq_info {
+ /* Maximum number of EVQ entries taken into account when buffer
+ * table space is allocated.
+ */
+ unsigned int max_entries;
+ /* Real number of EVQ entries, less or equal to max_entries */
+ unsigned int entries;
+ /* NUMA-aware EVQ data structure used on datapath */
+ struct sfc_evq *evq;
+};
+
+/*
+ * Functions below define event queue to transmit/receive queue and vice
+ * versa mapping.
+ */
+
+static inline unsigned int
+sfc_ev_qcount(struct sfc_adapter *sa)
+{
+ const struct rte_eth_dev_data *dev_data = sa->eth_dev->data;
+
+ /*
+ * One management EVQ for global events.
+ * Own EVQ for each Tx and Rx queue.
+ */
+ return 1 + dev_data->nb_rx_queues + dev_data->nb_tx_queues;
+}
+
+static inline unsigned int
+sfc_evq_max_entries(struct sfc_adapter *sa, unsigned int sw_index)
+{
+ unsigned int max_entries;
+
+ if (sw_index == sa->mgmt_evq_index)
+ max_entries = SFC_MGMT_EVQ_ENTRIES;
+ else if (sw_index <= sa->eth_dev->data->nb_rx_queues)
+ max_entries = EFX_RXQ_MAXNDESCS;
+ else
+ max_entries = efx_nic_cfg_get(sa->nic)->enc_txq_max_ndescs;
+
+ return max_entries;
+}
+
+static inline unsigned int
+sfc_evq_index_by_rxq_sw_index(struct sfc_adapter *sa, unsigned int rxq_sw_index)
+{
+ return 1 + rxq_sw_index;
+}
+
+static inline unsigned int
+sfc_evq_index_by_txq_sw_index(struct sfc_adapter *sa, unsigned int txq_sw_index)
+{
+ return 1 + sa->eth_dev->data->nb_rx_queues + txq_sw_index;
+}
+
+int sfc_ev_init(struct sfc_adapter *sa);
+void sfc_ev_fini(struct sfc_adapter *sa);
+int sfc_ev_start(struct sfc_adapter *sa);
+void sfc_ev_stop(struct sfc_adapter *sa);
+
+int sfc_ev_qinit(struct sfc_adapter *sa, unsigned int sw_index,
+ unsigned int entries, int socket_id);
+void sfc_ev_qfini(struct sfc_adapter *sa, unsigned int sw_index);
+int sfc_ev_qstart(struct sfc_adapter *sa, unsigned int sw_index);
+void sfc_ev_qstop(struct sfc_adapter *sa, unsigned int sw_index);
+
+int sfc_ev_qprime(struct sfc_evq *evq);
+void sfc_ev_qpoll(struct sfc_evq *evq);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _SFC_EV_H_ */
--
2.5.5
next prev parent reply other threads:[~2016-11-21 15:01 UTC|newest]
Thread overview: 149+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-21 15:00 [dpdk-dev] [PATCH 00/56] Solarflare libefx-based PMD Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 01/56] net/sfc: libefx-based PMD stub sufficient to build and init Andrew Rybchenko
2016-11-23 15:26 ` Ferruh Yigit
2016-11-24 15:59 ` Andrew Rybchenko
2016-11-25 10:17 ` Ferruh Yigit
2016-11-25 14:22 ` Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 02/56] net/sfc: import libefx base Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 03/56] net/sfc: import libefx register definitions Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 04/56] net/sfc: import libefx filters support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 05/56] net/sfc: import libefx MCDI definition Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 06/56] net/sfc: import libefx MCDI implementation Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 07/56] net/sfc: import libefx MCDI logging support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 08/56] net/sfc: import libefx MCDI proxy authorization support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 09/56] net/sfc: import libefx 5xxx/6xxx family support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 10/56] net/sfc: import libefx SFN7xxx " Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 11/56] net/sfc: import libefx SFN8xxx " Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 12/56] net/sfc: import libefx diagnostics support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 13/56] net/sfc: import libefx built-in selftest support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 14/56] net/sfc: import libefx software per-queue statistics support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 15/56] net/sfc: import libefx PHY flags control support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 16/56] net/sfc: import libefx PHY statistics support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 17/56] net/sfc: import libefx PHY LEDs control support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 18/56] net/sfc: import libefx MAC statistics support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 19/56] net/sfc: import libefx event prefetch support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 20/56] net/sfc: import libefx Rx scatter support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 21/56] net/sfc: import libefx RSS support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 22/56] net/sfc: import libefx loopback control support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 23/56] net/sfc: import libefx monitors statistics support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 24/56] net/sfc: import libefx support to access monitors via MCDI Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 25/56] net/sfc: import libefx support for Rx packed stream mode Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 26/56] net/sfc: import libefx NVRAM support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 27/56] net/sfc: import libefx VPD support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 28/56] net/sfc: import libefx bootrom configuration support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 29/56] net/sfc: import libefx licensing support Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 30/56] net/sfc: include libefx in build Andrew Rybchenko
2016-11-23 15:26 ` Ferruh Yigit
2016-11-24 15:44 ` Andrew Rybchenko
2016-11-25 10:24 ` Ferruh Yigit
2016-11-25 15:05 ` Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 31/56] net/sfc: implement dummy callback to get device information Andrew Rybchenko
2016-11-23 15:26 ` Ferruh Yigit
2016-11-24 15:05 ` Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 32/56] net/sfc: implement driver operation to init device on attach Andrew Rybchenko
2016-11-23 15:26 ` Ferruh Yigit
2016-11-24 14:58 ` Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 33/56] net/sfc: add device configure and close stubs Andrew Rybchenko
2016-11-23 15:26 ` Ferruh Yigit
2016-11-24 14:46 ` Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 34/56] net/sfc: add device configuration checks Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 35/56] net/sfc: implement device start and stop operations Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 36/56] net/sfc: make available resources estimation and allocation Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 37/56] net/sfc: interrupts support sufficient for event queue init Andrew Rybchenko
2016-11-21 15:00 ` Andrew Rybchenko [this message]
2016-11-21 15:00 ` [dpdk-dev] [PATCH 39/56] net/sfc: implement EVQ dummy exception handling Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 40/56] net/sfc: maintain management event queue Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 41/56] net/sfc: periodic management EVQ polling using alarm Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 42/56] net/sfc: minimum port control sufficient to receive traffic Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 43/56] net/sfc: implement device operation to retrieve link info Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 44/56] net/sfc: implement Rx subsystem stubs Andrew Rybchenko
2016-11-21 15:00 ` [dpdk-dev] [PATCH 45/56] net/sfc: check configured rxmode Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 46/56] net/sfc: implement Rx queue setup release operations Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 47/56] net/sfc: calculate Rx buffer size which may be used Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 48/56] net/sfc: validate Rx queue buffers setup Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 49/56] net/sfc: implement Rx queue start and stop operations Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 50/56] net/sfc: implement device callback to Rx burst of packets Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 51/56] net/sfc: discard scattered packet on Rx correctly Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 52/56] net/sfc: provide basic stubs for Tx subsystem Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 53/56] net/sfc: add function to check configured Tx mode Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 54/56] net/sfc: add callbacks to set up and release Tx queues Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 55/56] net/sfc: implement transmit path start / stop Andrew Rybchenko
2016-11-21 15:01 ` [dpdk-dev] [PATCH 56/56] net/sfc: add callback to send bursts of packets Andrew Rybchenko
2016-11-23 0:02 ` [dpdk-dev] [PATCH 00/56] Solarflare libefx-based PMD Ferruh Yigit
2016-11-23 0:10 ` Ferruh Yigit
2016-11-23 7:49 ` Andrew Rybchenko
2016-11-23 9:57 ` Mcnamara, John
2016-11-23 13:34 ` Thomas Monjalon
2016-11-23 19:21 ` Stephen Hemminger
2016-11-24 10:59 ` Andrew Rybchenko
2016-11-25 10:24 ` Ferruh Yigit
2016-11-25 12:02 ` Andrew Rybchenko
2016-11-25 12:43 ` Ferruh Yigit
2016-11-25 13:00 ` Thomas Monjalon
2016-11-25 13:23 ` Andrew Rybchenko
2016-11-25 12:44 ` Andrew Rybchenko
2016-11-23 15:29 ` Ferruh Yigit
2016-11-24 16:15 ` Andrew Rybchenko
2016-11-25 10:25 ` Ferruh Yigit
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 00/55] " Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 01/55] net/sfc: libefx-based PMD stub sufficient to build and init Andrew Rybchenko
2016-12-02 14:54 ` Ferruh Yigit
2016-12-02 15:03 ` Andrew Rybchenko
2016-12-02 15:08 ` Ferruh Yigit
2016-12-02 15:11 ` Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 02/55] net/sfc: import libefx base Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 03/55] net/sfc: import libefx register definitions Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 04/55] net/sfc: import libefx filters support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 05/55] net/sfc: import libefx MCDI definition Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 06/55] net/sfc: import libefx MCDI implementation Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 07/55] net/sfc: import libefx MCDI logging support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 08/55] net/sfc: import libefx MCDI proxy authorization support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 09/55] net/sfc: import libefx 5xxx/6xxx family support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 10/55] net/sfc: import libefx SFN7xxx " Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 11/55] net/sfc: import libefx SFN8xxx " Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 12/55] net/sfc: import libefx diagnostics support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 13/55] net/sfc: import libefx built-in selftest support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 14/55] net/sfc: import libefx software per-queue statistics support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 15/55] net/sfc: import libefx PHY flags control support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 16/55] net/sfc: import libefx PHY statistics support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 17/55] net/sfc: import libefx PHY LEDs control support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 18/55] net/sfc: import libefx MAC statistics support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 19/55] net/sfc: import libefx event prefetch support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 20/55] net/sfc: import libefx Rx scatter support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 21/55] net/sfc: import libefx RSS support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 22/55] net/sfc: import libefx loopback control support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 23/55] net/sfc: import libefx monitors statistics support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 24/55] net/sfc: import libefx support to access monitors via MCDI Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 25/55] net/sfc: import libefx support for Rx packed stream mode Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 26/55] net/sfc: import libefx NVRAM support Andrew Rybchenko
2016-11-29 16:18 ` [dpdk-dev] [PATCH v2 27/55] net/sfc: import libefx VPD support Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 28/55] net/sfc: import libefx bootrom configuration support Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 29/55] net/sfc: import libefx licensing support Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 30/55] net/sfc: include libefx in build Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 31/55] net/sfc: implement driver operation to init device on attach Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 32/55] net/sfc: add device configure and close stubs Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 33/55] net/sfc: add device configuration checks Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 34/55] net/sfc: implement device start and stop operations Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 35/55] net/sfc: make available resources estimation and allocation Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 36/55] net/sfc: interrupts support sufficient for event queue init Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 37/55] net/sfc: implement event queue support Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 38/55] net/sfc: implement EVQ dummy exception handling Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 39/55] net/sfc: maintain management event queue Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 40/55] net/sfc: periodic management EVQ polling using alarm Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 41/55] net/sfc: minimum port control sufficient to receive traffic Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 42/55] net/sfc: implement device operation to retrieve link info Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 43/55] net/sfc: implement Rx subsystem stubs Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 44/55] net/sfc: check configured rxmode Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 45/55] net/sfc: implement Rx queue setup release operations Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 46/55] net/sfc: calculate Rx buffer size which may be used Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 47/55] net/sfc: validate Rx queue buffers setup Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 48/55] net/sfc: implement Rx queue start and stop operations Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 49/55] net/sfc: implement device callback to Rx burst of packets Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 50/55] net/sfc: discard scattered packet on Rx correctly Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 51/55] net/sfc: provide basic stubs for Tx subsystem Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 52/55] net/sfc: add function to check configured Tx mode Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 53/55] net/sfc: add callbacks to set up and release Tx queues Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 54/55] net/sfc: implement transmit path start / stop Andrew Rybchenko
2016-11-29 16:19 ` [dpdk-dev] [PATCH v2 55/55] net/sfc: add callback to send bursts of packets Andrew Rybchenko
2016-12-02 14:55 ` [dpdk-dev] [PATCH v2 00/55] Solarflare libefx-based PMD Ferruh Yigit
2016-12-05 13:38 ` Ferruh Yigit
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