-/*-
- * BSD LICENSE
+/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright (c) 2016-2017 Solarflare Communications Inc.
+ * Copyright (c) 2016-2018 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>
dp_rxq = evq->dp_rxq;
SFC_ASSERT(dp_rxq != NULL);
- SFC_ASSERT(evq->sa->dp_rx->qrx_ev != NULL);
- return evq->sa->dp_rx->qrx_ev(dp_rxq, id);
+ SFC_ASSERT(evq->sa->priv.dp_rx->qrx_ev != NULL);
+ return evq->sa->priv.dp_rx->qrx_ev(dp_rxq, id);
+}
+
+static boolean_t
+sfc_ev_nop_rx_ps(void *arg, uint32_t label, uint32_t id,
+ uint32_t pkt_count, uint16_t flags)
+{
+ struct sfc_evq *evq = arg;
+
+ sfc_err(evq->sa,
+ "EVQ %u unexpected packed stream Rx event label=%u id=%#x pkt_count=%u flags=%#x",
+ evq->evq_index, label, id, pkt_count, flags);
+ return B_TRUE;
+}
+
+/* It is not actually used on datapath, but required on RxQ flush */
+static boolean_t
+sfc_ev_dp_rx_ps(void *arg, __rte_unused uint32_t label, uint32_t id,
+ __rte_unused uint32_t pkt_count, __rte_unused uint16_t flags)
+{
+ struct sfc_evq *evq = arg;
+ struct sfc_dp_rxq *dp_rxq;
+
+ dp_rxq = evq->dp_rxq;
+ SFC_ASSERT(dp_rxq != NULL);
+
+ if (evq->sa->priv.dp_rx->qrx_ps_ev != NULL)
+ return evq->sa->priv.dp_rx->qrx_ps_ev(dp_rxq, id);
+ else
+ return B_FALSE;
}
static boolean_t
dp_txq = evq->dp_txq;
SFC_ASSERT(dp_txq != NULL);
- SFC_ASSERT(evq->sa->dp_tx->qtx_ev != NULL);
- return evq->sa->dp_tx->qtx_ev(dp_txq, id);
+ SFC_ASSERT(evq->sa->priv.dp_tx->qtx_ev != NULL);
+ return evq->sa->priv.dp_tx->qtx_ev(dp_txq, id);
}
static boolean_t
-sfc_ev_exception(void *arg, __rte_unused uint32_t code,
- __rte_unused uint32_t data)
+sfc_ev_exception(void *arg, uint32_t code, __rte_unused uint32_t data)
{
struct sfc_evq *evq = arg;
SFC_ASSERT(rxq != NULL);
SFC_ASSERT(rxq->hw_index == rxq_hw_index);
SFC_ASSERT(rxq->evq == evq);
- sfc_rx_qflush_done(rxq);
+ RTE_SET_USED(rxq);
+
+ sfc_rx_qflush_done(sfc_rxq_info_by_dp_rxq(dp_rxq));
return B_FALSE;
}
SFC_ASSERT(rxq != NULL);
SFC_ASSERT(rxq->hw_index == rxq_hw_index);
SFC_ASSERT(rxq->evq == evq);
- sfc_rx_qflush_failed(rxq);
+ RTE_SET_USED(rxq);
+
+ sfc_rx_qflush_failed(sfc_rxq_info_by_dp_rxq(dp_rxq));
return B_FALSE;
}
SFC_ASSERT(txq != NULL);
SFC_ASSERT(txq->hw_index == txq_hw_index);
SFC_ASSERT(txq->evq == evq);
- sfc_tx_qflush_done(txq);
+ RTE_SET_USED(txq);
+
+ sfc_tx_qflush_done(sfc_txq_info_by_dp_txq(dp_txq));
return B_FALSE;
}
{
struct sfc_evq *evq = arg;
struct sfc_adapter *sa = evq->sa;
- struct rte_eth_link *dev_link = &sa->eth_dev->data->dev_link;
struct rte_eth_link new_link;
- uint64_t new_link_u64;
- uint64_t old_link_u64;
-
- EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
sfc_port_link_mode_to_info(link_mode, &new_link);
-
- new_link_u64 = *(uint64_t *)&new_link;
- do {
- old_link_u64 = rte_atomic64_read((rte_atomic64_t *)dev_link);
- if (old_link_u64 == new_link_u64)
- break;
-
- if (rte_atomic64_cmpset((volatile uint64_t *)dev_link,
- old_link_u64, new_link_u64)) {
- evq->sa->port.lsc_seq++;
- break;
- }
- } while (B_TRUE);
+ if (rte_eth_linkstatus_set(sa->eth_dev, &new_link))
+ evq->sa->port.lsc_seq++;
return B_FALSE;
}
static const efx_ev_callbacks_t sfc_ev_callbacks = {
.eec_initialized = sfc_ev_initialized,
.eec_rx = sfc_ev_nop_rx,
+ .eec_rx_ps = sfc_ev_nop_rx_ps,
.eec_tx = sfc_ev_nop_tx,
.eec_exception = sfc_ev_exception,
.eec_rxq_flush_done = sfc_ev_nop_rxq_flush_done,
static const efx_ev_callbacks_t sfc_ev_callbacks_efx_rx = {
.eec_initialized = sfc_ev_initialized,
.eec_rx = sfc_ev_efx_rx,
+ .eec_rx_ps = sfc_ev_nop_rx_ps,
.eec_tx = sfc_ev_nop_tx,
.eec_exception = sfc_ev_exception,
.eec_rxq_flush_done = sfc_ev_rxq_flush_done,
static const efx_ev_callbacks_t sfc_ev_callbacks_dp_rx = {
.eec_initialized = sfc_ev_initialized,
.eec_rx = sfc_ev_dp_rx,
+ .eec_rx_ps = sfc_ev_dp_rx_ps,
.eec_tx = sfc_ev_nop_tx,
.eec_exception = sfc_ev_exception,
.eec_rxq_flush_done = sfc_ev_rxq_flush_done,
static const efx_ev_callbacks_t sfc_ev_callbacks_efx_tx = {
.eec_initialized = sfc_ev_initialized,
.eec_rx = sfc_ev_nop_rx,
+ .eec_rx_ps = sfc_ev_nop_rx_ps,
.eec_tx = sfc_ev_tx,
.eec_exception = sfc_ev_exception,
.eec_rxq_flush_done = sfc_ev_nop_rxq_flush_done,
static const efx_ev_callbacks_t sfc_ev_callbacks_dp_tx = {
.eec_initialized = sfc_ev_initialized,
.eec_rx = sfc_ev_nop_rx,
+ .eec_rx_ps = sfc_ev_nop_rx_ps,
.eec_tx = sfc_ev_dp_tx,
.eec_exception = sfc_ev_exception,
.eec_rxq_flush_done = sfc_ev_nop_rxq_flush_done,
sfc_ev_mgmt_qpoll(struct sfc_adapter *sa)
{
if (rte_spinlock_trylock(&sa->mgmt_evq_lock)) {
- struct sfc_evq *mgmt_evq = sa->evq_info[sa->mgmt_evq_index].evq;
-
- if (mgmt_evq->init_state == SFC_EVQ_STARTED)
- sfc_ev_qpoll(mgmt_evq);
+ if (sa->mgmt_evq_running)
+ sfc_ev_qpoll(sa->mgmt_evq);
rte_spinlock_unlock(&sa->mgmt_evq_lock);
}
return efx_ev_qprime(evq->common, evq->read_ptr);
}
+/* Event queue HW index allocation scheme is described in sfc_ev.h. */
int
-sfc_ev_qstart(struct sfc_adapter *sa, unsigned int sw_index)
+sfc_ev_qstart(struct sfc_evq *evq, unsigned int hw_index)
{
- const struct sfc_evq_info *evq_info;
- struct sfc_evq *evq;
+ struct sfc_adapter *sa = evq->sa;
efsys_mem_t *esmp;
+ uint32_t evq_flags = sa->evq_flags;
unsigned int total_delay_us;
unsigned int delay_us;
int rc;
- sfc_log_init(sa, "sw_index=%u", sw_index);
+ sfc_log_init(sa, "hw_index=%u", hw_index);
- evq_info = &sa->evq_info[sw_index];
- evq = evq_info->evq;
esmp = &evq->mem;
+ evq->evq_index = hw_index;
+
/* Clear all events */
- (void)memset((void *)esmp->esm_base, 0xff,
- EFX_EVQ_SIZE(evq_info->entries));
+ (void)memset((void *)esmp->esm_base, 0xff, EFX_EVQ_SIZE(evq->entries));
+
+ if (sa->intr.lsc_intr && hw_index == sa->mgmt_evq_index)
+ evq_flags |= EFX_EVQ_FLAGS_NOTIFY_INTERRUPT;
+ else
+ evq_flags |= EFX_EVQ_FLAGS_NOTIFY_DISABLED;
/* Create the common code event queue */
- rc = efx_ev_qcreate(sa->nic, sw_index, esmp, evq_info->entries,
- 0 /* unused on EF10 */, 0, evq_info->flags,
+ rc = efx_ev_qcreate(sa->nic, hw_index, esmp, evq->entries,
+ 0 /* unused on EF10 */, 0, evq_flags,
&evq->common);
if (rc != 0)
goto fail_ev_qcreate;
SFC_ASSERT(evq->dp_rxq == NULL || evq->dp_txq == NULL);
if (evq->dp_rxq != 0) {
- if (strcmp(sa->dp_rx->dp.name, SFC_KVARG_DATAPATH_EFX) == 0)
+ if (strcmp(sa->priv.dp_rx->dp.name,
+ SFC_KVARG_DATAPATH_EFX) == 0)
evq->callbacks = &sfc_ev_callbacks_efx_rx;
else
evq->callbacks = &sfc_ev_callbacks_dp_rx;
} else if (evq->dp_txq != 0) {
- if (strcmp(sa->dp_tx->dp.name, SFC_KVARG_DATAPATH_EFX) == 0)
+ if (strcmp(sa->priv.dp_tx->dp.name,
+ SFC_KVARG_DATAPATH_EFX) == 0)
evq->callbacks = &sfc_ev_callbacks_efx_tx;
else
evq->callbacks = &sfc_ev_callbacks_dp_tx;
}
void
-sfc_ev_qstop(struct sfc_adapter *sa, unsigned int sw_index)
+sfc_ev_qstop(struct sfc_evq *evq)
{
- 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);
+ if (evq == NULL)
+ return;
- evq_info = &sa->evq_info[sw_index];
- evq = evq_info->evq;
+ sfc_log_init(evq->sa, "hw_index=%u", evq->evq_index);
- if (evq == NULL || evq->init_state != SFC_EVQ_STARTED)
+ if (evq->init_state != SFC_EVQ_STARTED)
return;
evq->init_state = SFC_EVQ_INITIALIZED;
evq->exception = B_FALSE;
efx_ev_qdestroy(evq->common);
+
+ evq->evq_index = 0;
}
static void
goto fail_ev_init;
/* Start management EVQ used for global events */
- rte_spinlock_lock(&sa->mgmt_evq_lock);
- rc = sfc_ev_qstart(sa, sa->mgmt_evq_index);
+ /*
+ * Management event queue start polls the queue, but it cannot
+ * interfere with other polling contexts since mgmt_evq_running
+ * is false yet.
+ */
+ rc = sfc_ev_qstart(sa->mgmt_evq, sa->mgmt_evq_index);
if (rc != 0)
goto fail_mgmt_evq_start;
+ rte_spinlock_lock(&sa->mgmt_evq_lock);
+ sa->mgmt_evq_running = true;
+ rte_spinlock_unlock(&sa->mgmt_evq_lock);
+
if (sa->intr.lsc_intr) {
- rc = sfc_ev_qprime(sa->evq_info[sa->mgmt_evq_index].evq);
+ rc = sfc_ev_qprime(sa->mgmt_evq);
if (rc != 0)
- goto fail_evq0_prime;
+ goto fail_mgmt_evq_prime;
}
- rte_spinlock_unlock(&sa->mgmt_evq_lock);
-
/*
* Start management EVQ polling. If interrupts are disabled
* (not used), it is required to process link status change
return 0;
-fail_evq0_prime:
- sfc_ev_qstop(sa, 0);
+fail_mgmt_evq_prime:
+ sfc_ev_qstop(sa->mgmt_evq);
fail_mgmt_evq_start:
- rte_spinlock_unlock(&sa->mgmt_evq_lock);
efx_ev_fini(sa->nic);
fail_ev_init:
void
sfc_ev_stop(struct sfc_adapter *sa)
{
- unsigned int sw_index;
-
sfc_log_init(sa, "entry");
sfc_ev_mgmt_periodic_qpoll_stop(sa);
- /* Make sure that all event queues are stopped */
- sw_index = sa->evq_count;
- while (sw_index-- > 0) {
- if (sw_index == sa->mgmt_evq_index) {
- /* Locks are required for the management EVQ */
- rte_spinlock_lock(&sa->mgmt_evq_lock);
- sfc_ev_qstop(sa, sa->mgmt_evq_index);
- rte_spinlock_unlock(&sa->mgmt_evq_lock);
- } else {
- sfc_ev_qstop(sa, sw_index);
- }
- }
+ rte_spinlock_lock(&sa->mgmt_evq_lock);
+ sa->mgmt_evq_running = false;
+ rte_spinlock_unlock(&sa->mgmt_evq_lock);
+
+ sfc_ev_qstop(sa->mgmt_evq);
efx_ev_fini(sa->nic);
}
int
-sfc_ev_qinit(struct sfc_adapter *sa, unsigned int sw_index,
+sfc_ev_qinit(struct sfc_adapter *sa,
enum sfc_evq_type type, unsigned int type_index,
- unsigned int entries, int socket_id)
+ unsigned int entries, int socket_id, struct sfc_evq **evqp)
{
- struct sfc_evq_info *evq_info;
struct sfc_evq *evq;
int rc;
- sfc_log_init(sa, "sw_index=%u type=%s type_index=%u",
- sw_index, sfc_evq_type2str(type), type_index);
-
- evq_info = &sa->evq_info[sw_index];
+ sfc_log_init(sa, "type=%s type_index=%u",
+ sfc_evq_type2str(type), type_index);
SFC_ASSERT(rte_is_power_of_2(entries));
- evq_info->entries = entries;
rc = ENOMEM;
evq = rte_zmalloc_socket("sfc-evq", sizeof(*evq), RTE_CACHE_LINE_SIZE,
goto fail_evq_alloc;
evq->sa = sa;
- evq->evq_index = sw_index;
evq->type = type;
+ evq->entries = entries;
/* Allocate DMA space */
rc = sfc_dma_alloc(sa, sfc_evq_type2str(type), type_index,
- EFX_EVQ_SIZE(evq_info->entries),
- socket_id, &evq->mem);
+ EFX_EVQ_SIZE(evq->entries), socket_id, &evq->mem);
if (rc != 0)
goto fail_dma_alloc;
evq->init_state = SFC_EVQ_INITIALIZED;
- evq_info->evq = evq;
+ sa->evq_count++;
+
+ *evqp = evq;
return 0;
}
void
-sfc_ev_qfini(struct sfc_adapter *sa, unsigned int sw_index)
+sfc_ev_qfini(struct sfc_evq *evq)
{
- struct sfc_evq *evq;
-
- sfc_log_init(sa, "sw_index=%u", sw_index);
-
- evq = sa->evq_info[sw_index].evq;
+ struct sfc_adapter *sa = evq->sa;
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];
-
- sfc_log_init(sa, "sw_index=%u", sw_index);
- evq_info->flags = sa->evq_flags |
- ((sa->intr.lsc_intr && sw_index == sa->mgmt_evq_index) ?
- EFX_EVQ_FLAGS_NOTIFY_INTERRUPT :
- EFX_EVQ_FLAGS_NOTIFY_DISABLED);
-
- return 0;
+ SFC_ASSERT(sa->evq_count > 0);
+ sa->evq_count--;
}
static int
sfc_kvarg_perf_profile_handler(__rte_unused const char *key,
const char *value_str, void *opaque)
{
- uint64_t *value = opaque;
+ uint32_t *value = opaque;
if (strcasecmp(value_str, SFC_KVARG_PERF_PROFILE_THROUGHPUT) == 0)
*value = EFX_EVQ_FLAGS_TYPE_THROUGHPUT;
return 0;
}
-static void
-sfc_ev_qfini_info(struct sfc_adapter *sa, unsigned int sw_index)
-{
- sfc_log_init(sa, "sw_index=%u", sw_index);
-
- /* Nothing to cleanup */
-}
-
int
-sfc_ev_init(struct sfc_adapter *sa)
+sfc_ev_attach(struct sfc_adapter *sa)
{
int rc;
- unsigned int sw_index;
sfc_log_init(sa, "entry");
goto fail_kvarg_perf_profile;
}
- sa->evq_count = sfc_ev_qcount(sa);
sa->mgmt_evq_index = 0;
rte_spinlock_init(&sa->mgmt_evq_lock);
- /* 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;
- }
-
- rc = sfc_ev_qinit(sa, sa->mgmt_evq_index, SFC_EVQ_TYPE_MGMT, 0,
- SFC_MGMT_EVQ_ENTRIES, sa->socket_id);
+ rc = sfc_ev_qinit(sa, SFC_EVQ_TYPE_MGMT, 0, sa->evq_min_entries,
+ sa->socket_id, &sa->mgmt_evq);
if (rc != 0)
goto fail_mgmt_evq_init;
return 0;
fail_mgmt_evq_init:
-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;
fail_kvarg_perf_profile:
sfc_log_init(sa, "failed %d", rc);
}
void
-sfc_ev_fini(struct sfc_adapter *sa)
+sfc_ev_detach(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);
- }
+ sfc_ev_qfini(sa->mgmt_evq);
- rte_free(sa->evq_info);
- sa->evq_info = NULL;
- sa->evq_count = 0;
+ if (sa->evq_count != 0)
+ sfc_err(sa, "%u EvQs are not destroyed before detach",
+ sa->evq_count);
}