1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2015 Mellanox Technologies, Ltd
16 #include <linux/rtnetlink.h>
19 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
21 #pragma GCC diagnostic ignored "-Wpedantic"
23 #include <infiniband/verbs.h>
25 #pragma GCC diagnostic error "-Wpedantic"
28 #include <rte_malloc.h>
29 #include <rte_ethdev_driver.h>
30 #include <rte_ethdev_pci.h>
32 #include <rte_bus_pci.h>
33 #include <rte_common.h>
34 #include <rte_config.h>
35 #include <rte_eal_memconfig.h>
36 #include <rte_kvargs.h>
37 #include <rte_rwlock.h>
38 #include <rte_spinlock.h>
39 #include <rte_string_fns.h>
40 #include <rte_alarm.h>
43 #include "mlx5_utils.h"
44 #include "mlx5_rxtx.h"
45 #include "mlx5_autoconf.h"
46 #include "mlx5_defs.h"
47 #include "mlx5_glue.h"
49 #include "mlx5_flow.h"
51 /* Device parameter to enable RX completion queue compression. */
52 #define MLX5_RXQ_CQE_COMP_EN "rxq_cqe_comp_en"
54 /* Device parameter to enable RX completion entry padding to 128B. */
55 #define MLX5_RXQ_CQE_PAD_EN "rxq_cqe_pad_en"
57 /* Device parameter to enable padding Rx packet to cacheline size. */
58 #define MLX5_RXQ_PKT_PAD_EN "rxq_pkt_pad_en"
60 /* Device parameter to enable Multi-Packet Rx queue. */
61 #define MLX5_RX_MPRQ_EN "mprq_en"
63 /* Device parameter to configure log 2 of the number of strides for MPRQ. */
64 #define MLX5_RX_MPRQ_LOG_STRIDE_NUM "mprq_log_stride_num"
66 /* Device parameter to limit the size of memcpy'd packet for MPRQ. */
67 #define MLX5_RX_MPRQ_MAX_MEMCPY_LEN "mprq_max_memcpy_len"
69 /* Device parameter to set the minimum number of Rx queues to enable MPRQ. */
70 #define MLX5_RXQS_MIN_MPRQ "rxqs_min_mprq"
72 /* Device parameter to configure inline send. Deprecated, ignored.*/
73 #define MLX5_TXQ_INLINE "txq_inline"
76 * Device parameter to configure the number of TX queues threshold for
77 * enabling inline send.
79 #define MLX5_TXQS_MIN_INLINE "txqs_min_inline"
82 * Device parameter to configure the number of TX queues threshold for
83 * enabling vectorized Tx, deprecated, ignored (no vectorized Tx routines).
85 #define MLX5_TXQS_MAX_VEC "txqs_max_vec"
87 /* Device parameter to enable multi-packet send WQEs. */
88 #define MLX5_TXQ_MPW_EN "txq_mpw_en"
91 * Device parameter to include 2 dsegs in the title WQEBB.
92 * Deprecated, ignored.
94 #define MLX5_TXQ_MPW_HDR_DSEG_EN "txq_mpw_hdr_dseg_en"
97 * Device parameter to limit the size of inlining packet.
98 * Deprecated, ignored.
100 #define MLX5_TXQ_MAX_INLINE_LEN "txq_max_inline_len"
103 * Device parameter to enable hardware Tx vector.
104 * Deprecated, ignored (no vectorized Tx routines anymore).
106 #define MLX5_TX_VEC_EN "tx_vec_en"
108 /* Device parameter to enable hardware Rx vector. */
109 #define MLX5_RX_VEC_EN "rx_vec_en"
111 /* Allow L3 VXLAN flow creation. */
112 #define MLX5_L3_VXLAN_EN "l3_vxlan_en"
114 /* Activate DV E-Switch flow steering. */
115 #define MLX5_DV_ESW_EN "dv_esw_en"
117 /* Activate DV flow steering. */
118 #define MLX5_DV_FLOW_EN "dv_flow_en"
120 /* Activate Netlink support in VF mode. */
121 #define MLX5_VF_NL_EN "vf_nl_en"
123 /* Enable extending memsegs when creating a MR. */
124 #define MLX5_MR_EXT_MEMSEG_EN "mr_ext_memseg_en"
126 /* Select port representors to instantiate. */
127 #define MLX5_REPRESENTOR "representor"
129 /* Device parameter to configure the maximum number of dump files per queue. */
130 #define MLX5_MAX_DUMP_FILES_NUM "max_dump_files_num"
132 #ifndef HAVE_IBV_MLX5_MOD_MPW
133 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
134 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
137 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
138 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
141 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
143 /* Shared memory between primary and secondary processes. */
144 struct mlx5_shared_data *mlx5_shared_data;
146 /* Spinlock for mlx5_shared_data allocation. */
147 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
149 /* Process local data for secondary processes. */
150 static struct mlx5_local_data mlx5_local_data;
152 /** Driver-specific log messages type. */
155 /** Data associated with devices to spawn. */
156 struct mlx5_dev_spawn_data {
157 uint32_t ifindex; /**< Network interface index. */
158 uint32_t max_port; /**< IB device maximal port index. */
159 uint32_t ibv_port; /**< IB device physical port index. */
160 struct mlx5_switch_info info; /**< Switch information. */
161 struct ibv_device *ibv_dev; /**< Associated IB device. */
162 struct rte_eth_dev *eth_dev; /**< Associated Ethernet device. */
163 struct rte_pci_device *pci_dev; /**< Backend PCI device. */
166 static LIST_HEAD(, mlx5_ibv_shared) mlx5_ibv_list = LIST_HEAD_INITIALIZER();
167 static pthread_mutex_t mlx5_ibv_list_mutex = PTHREAD_MUTEX_INITIALIZER;
170 * Initialize the counters management structure.
173 * Pointer to mlx5_ibv_shared object to free
176 mlx5_flow_counters_mng_init(struct mlx5_ibv_shared *sh)
180 TAILQ_INIT(&sh->cmng.flow_counters);
181 for (i = 0; i < RTE_DIM(sh->cmng.ccont); ++i)
182 TAILQ_INIT(&sh->cmng.ccont[i].pool_list);
186 * Destroy all the resources allocated for a counter memory management.
189 * Pointer to the memory management structure.
192 mlx5_flow_destroy_counter_stat_mem_mng(struct mlx5_counter_stats_mem_mng *mng)
194 uint8_t *mem = (uint8_t *)(uintptr_t)mng->raws[0].data;
196 LIST_REMOVE(mng, next);
197 claim_zero(mlx5_devx_cmd_destroy(mng->dm));
198 claim_zero(mlx5_glue->devx_umem_dereg(mng->umem));
203 * Close and release all the resources of the counters management.
206 * Pointer to mlx5_ibv_shared object to free.
209 mlx5_flow_counters_mng_close(struct mlx5_ibv_shared *sh)
211 struct mlx5_counter_stats_mem_mng *mng;
218 rte_eal_alarm_cancel(mlx5_flow_query_alarm, sh);
219 if (rte_errno != EINPROGRESS)
223 for (i = 0; i < RTE_DIM(sh->cmng.ccont); ++i) {
224 struct mlx5_flow_counter_pool *pool;
225 uint32_t batch = !!(i % 2);
227 if (!sh->cmng.ccont[i].pools)
229 pool = TAILQ_FIRST(&sh->cmng.ccont[i].pool_list);
234 (mlx5_devx_cmd_destroy(pool->min_dcs));
236 for (j = 0; j < MLX5_COUNTERS_PER_POOL; ++j) {
237 if (pool->counters_raw[j].action)
239 (mlx5_glue->destroy_flow_action
240 (pool->counters_raw[j].action));
241 if (!batch && pool->counters_raw[j].dcs)
242 claim_zero(mlx5_devx_cmd_destroy
243 (pool->counters_raw[j].dcs));
245 TAILQ_REMOVE(&sh->cmng.ccont[i].pool_list, pool,
248 pool = TAILQ_FIRST(&sh->cmng.ccont[i].pool_list);
250 rte_free(sh->cmng.ccont[i].pools);
252 mng = LIST_FIRST(&sh->cmng.mem_mngs);
254 mlx5_flow_destroy_counter_stat_mem_mng(mng);
255 mng = LIST_FIRST(&sh->cmng.mem_mngs);
257 memset(&sh->cmng, 0, sizeof(sh->cmng));
261 * Allocate shared IB device context. If there is multiport device the
262 * master and representors will share this context, if there is single
263 * port dedicated IB device, the context will be used by only given
264 * port due to unification.
266 * Routine first searches the context for the specified IB device name,
267 * if found the shared context assumed and reference counter is incremented.
268 * If no context found the new one is created and initialized with specified
269 * IB device context and parameters.
272 * Pointer to the IB device attributes (name, port, etc).
275 * Pointer to mlx5_ibv_shared object on success,
276 * otherwise NULL and rte_errno is set.
278 static struct mlx5_ibv_shared *
279 mlx5_alloc_shared_ibctx(const struct mlx5_dev_spawn_data *spawn)
281 struct mlx5_ibv_shared *sh;
286 /* Secondary process should not create the shared context. */
287 assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
288 pthread_mutex_lock(&mlx5_ibv_list_mutex);
289 /* Search for IB context by device name. */
290 LIST_FOREACH(sh, &mlx5_ibv_list, next) {
291 if (!strcmp(sh->ibdev_name, spawn->ibv_dev->name)) {
296 /* No device found, we have to create new shared context. */
297 assert(spawn->max_port);
298 sh = rte_zmalloc("ethdev shared ib context",
299 sizeof(struct mlx5_ibv_shared) +
301 sizeof(struct mlx5_ibv_shared_port),
302 RTE_CACHE_LINE_SIZE);
304 DRV_LOG(ERR, "shared context allocation failure");
308 /* Try to open IB device with DV first, then usual Verbs. */
310 sh->ctx = mlx5_glue->dv_open_device(spawn->ibv_dev);
313 DRV_LOG(DEBUG, "DevX is supported");
315 sh->ctx = mlx5_glue->open_device(spawn->ibv_dev);
317 err = errno ? errno : ENODEV;
320 DRV_LOG(DEBUG, "DevX is NOT supported");
322 err = mlx5_glue->query_device_ex(sh->ctx, NULL, &sh->device_attr);
324 DRV_LOG(DEBUG, "ibv_query_device_ex() failed");
328 sh->max_port = spawn->max_port;
329 strncpy(sh->ibdev_name, sh->ctx->device->name,
330 sizeof(sh->ibdev_name));
331 strncpy(sh->ibdev_path, sh->ctx->device->ibdev_path,
332 sizeof(sh->ibdev_path));
333 sh->pci_dev = spawn->pci_dev;
334 pthread_mutex_init(&sh->intr_mutex, NULL);
336 * Setting port_id to max unallowed value means
337 * there is no interrupt subhandler installed for
338 * the given port index i.
340 for (i = 0; i < sh->max_port; i++)
341 sh->port[i].ih_port_id = RTE_MAX_ETHPORTS;
342 sh->pd = mlx5_glue->alloc_pd(sh->ctx);
343 if (sh->pd == NULL) {
344 DRV_LOG(ERR, "PD allocation failure");
349 * Once the device is added to the list of memory event
350 * callback, its global MR cache table cannot be expanded
351 * on the fly because of deadlock. If it overflows, lookup
352 * should be done by searching MR list linearly, which is slow.
354 * At this point the device is not added to the memory
355 * event list yet, context is just being created.
357 err = mlx5_mr_btree_init(&sh->mr.cache,
358 MLX5_MR_BTREE_CACHE_N * 2,
359 sh->pci_dev->device.numa_node);
364 mlx5_flow_counters_mng_init(sh);
365 LIST_INSERT_HEAD(&mlx5_ibv_list, sh, next);
367 pthread_mutex_unlock(&mlx5_ibv_list_mutex);
370 pthread_mutex_unlock(&mlx5_ibv_list_mutex);
373 claim_zero(mlx5_glue->dealloc_pd(sh->pd));
375 claim_zero(mlx5_glue->close_device(sh->ctx));
383 * Free shared IB device context. Decrement counter and if zero free
384 * all allocated resources and close handles.
387 * Pointer to mlx5_ibv_shared object to free
390 mlx5_free_shared_ibctx(struct mlx5_ibv_shared *sh)
392 pthread_mutex_lock(&mlx5_ibv_list_mutex);
394 /* Check the object presence in the list. */
395 struct mlx5_ibv_shared *lctx;
397 LIST_FOREACH(lctx, &mlx5_ibv_list, next)
402 DRV_LOG(ERR, "Freeing non-existing shared IB context");
408 /* Secondary process should not free the shared context. */
409 assert(rte_eal_process_type() == RTE_PROC_PRIMARY);
412 /* Release created Memory Regions. */
414 LIST_REMOVE(sh, next);
416 * Ensure there is no async event handler installed.
417 * Only primary process handles async device events.
419 mlx5_flow_counters_mng_close(sh);
420 assert(!sh->intr_cnt);
422 mlx5_intr_callback_unregister
423 (&sh->intr_handle, mlx5_dev_interrupt_handler, sh);
424 pthread_mutex_destroy(&sh->intr_mutex);
426 claim_zero(mlx5_glue->dealloc_pd(sh->pd));
428 claim_zero(mlx5_glue->close_device(sh->ctx));
431 pthread_mutex_unlock(&mlx5_ibv_list_mutex);
435 * Initialize DR related data within private structure.
436 * Routine checks the reference counter and does actual
437 * resources creation/initialization only if counter is zero.
440 * Pointer to the private device data structure.
443 * Zero on success, positive error code otherwise.
446 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
448 #ifdef HAVE_MLX5DV_DR
449 struct mlx5_ibv_shared *sh = priv->sh;
455 /* Shared DV/DR structures is already initialized. */
460 /* Reference counter is zero, we should initialize structures. */
461 domain = mlx5_glue->dr_create_domain(sh->ctx,
462 MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
464 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
468 sh->rx_domain = domain;
469 domain = mlx5_glue->dr_create_domain(sh->ctx,
470 MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
472 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
476 pthread_mutex_init(&sh->dv_mutex, NULL);
477 sh->tx_domain = domain;
478 #ifdef HAVE_MLX5DV_DR_ESWITCH
479 if (priv->config.dv_esw_en) {
480 domain = mlx5_glue->dr_create_domain
481 (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
483 DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
487 sh->fdb_domain = domain;
488 sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
496 /* Rollback the created objects. */
498 mlx5_glue->dr_destroy_domain(sh->rx_domain);
499 sh->rx_domain = NULL;
502 mlx5_glue->dr_destroy_domain(sh->tx_domain);
503 sh->tx_domain = NULL;
505 if (sh->fdb_domain) {
506 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
507 sh->fdb_domain = NULL;
509 if (sh->esw_drop_action) {
510 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
511 sh->esw_drop_action = NULL;
521 * Destroy DR related data within private structure.
524 * Pointer to the private device data structure.
527 mlx5_free_shared_dr(struct mlx5_priv *priv)
529 #ifdef HAVE_MLX5DV_DR
530 struct mlx5_ibv_shared *sh;
532 if (!priv->dr_shared)
537 assert(sh->dv_refcnt);
538 if (sh->dv_refcnt && --sh->dv_refcnt)
541 mlx5_glue->dr_destroy_domain(sh->rx_domain);
542 sh->rx_domain = NULL;
545 mlx5_glue->dr_destroy_domain(sh->tx_domain);
546 sh->tx_domain = NULL;
548 #ifdef HAVE_MLX5DV_DR_ESWITCH
549 if (sh->fdb_domain) {
550 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
551 sh->fdb_domain = NULL;
553 if (sh->esw_drop_action) {
554 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
555 sh->esw_drop_action = NULL;
558 pthread_mutex_destroy(&sh->dv_mutex);
565 * Initialize shared data between primary and secondary process.
567 * A memzone is reserved by primary process and secondary processes attach to
571 * 0 on success, a negative errno value otherwise and rte_errno is set.
574 mlx5_init_shared_data(void)
576 const struct rte_memzone *mz;
579 rte_spinlock_lock(&mlx5_shared_data_lock);
580 if (mlx5_shared_data == NULL) {
581 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
582 /* Allocate shared memory. */
583 mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
584 sizeof(*mlx5_shared_data),
588 "Cannot allocate mlx5 shared data\n");
592 mlx5_shared_data = mz->addr;
593 memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
594 rte_spinlock_init(&mlx5_shared_data->lock);
596 /* Lookup allocated shared memory. */
597 mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
600 "Cannot attach mlx5 shared data\n");
604 mlx5_shared_data = mz->addr;
605 memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
609 rte_spinlock_unlock(&mlx5_shared_data_lock);
614 * Retrieve integer value from environment variable.
617 * Environment variable name.
620 * Integer value, 0 if the variable is not set.
623 mlx5_getenv_int(const char *name)
625 const char *val = getenv(name);
633 * Verbs callback to allocate a memory. This function should allocate the space
634 * according to the size provided residing inside a huge page.
635 * Please note that all allocation must respect the alignment from libmlx5
636 * (i.e. currently sysconf(_SC_PAGESIZE)).
639 * The size in bytes of the memory to allocate.
641 * A pointer to the callback data.
644 * Allocated buffer, NULL otherwise and rte_errno is set.
647 mlx5_alloc_verbs_buf(size_t size, void *data)
649 struct mlx5_priv *priv = data;
651 size_t alignment = sysconf(_SC_PAGESIZE);
652 unsigned int socket = SOCKET_ID_ANY;
654 if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) {
655 const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
657 socket = ctrl->socket;
658 } else if (priv->verbs_alloc_ctx.type ==
659 MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) {
660 const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
662 socket = ctrl->socket;
664 assert(data != NULL);
665 ret = rte_malloc_socket(__func__, size, alignment, socket);
672 * Verbs callback to free a memory.
675 * A pointer to the memory to free.
677 * A pointer to the callback data.
680 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
682 assert(data != NULL);
687 * Initialize process private data structure.
690 * Pointer to Ethernet device structure.
693 * 0 on success, a negative errno value otherwise and rte_errno is set.
696 mlx5_proc_priv_init(struct rte_eth_dev *dev)
698 struct mlx5_priv *priv = dev->data->dev_private;
699 struct mlx5_proc_priv *ppriv;
703 * UAR register table follows the process private structure. BlueFlame
704 * registers for Tx queues are stored in the table.
707 sizeof(struct mlx5_proc_priv) + priv->txqs_n * sizeof(void *);
708 ppriv = rte_malloc_socket("mlx5_proc_priv", ppriv_size,
709 RTE_CACHE_LINE_SIZE, dev->device->numa_node);
714 ppriv->uar_table_sz = ppriv_size;
715 dev->process_private = ppriv;
720 * Un-initialize process private data structure.
723 * Pointer to Ethernet device structure.
726 mlx5_proc_priv_uninit(struct rte_eth_dev *dev)
728 if (!dev->process_private)
730 rte_free(dev->process_private);
731 dev->process_private = NULL;
735 * DPDK callback to close the device.
737 * Destroy all queues and objects, free memory.
740 * Pointer to Ethernet device structure.
743 mlx5_dev_close(struct rte_eth_dev *dev)
745 struct mlx5_priv *priv = dev->data->dev_private;
749 DRV_LOG(DEBUG, "port %u closing device \"%s\"",
751 ((priv->sh->ctx != NULL) ? priv->sh->ctx->device->name : ""));
752 /* In case mlx5_dev_stop() has not been called. */
753 mlx5_dev_interrupt_handler_uninstall(dev);
754 mlx5_traffic_disable(dev);
755 mlx5_flow_flush(dev, NULL);
756 /* Prevent crashes when queues are still in use. */
757 dev->rx_pkt_burst = removed_rx_burst;
758 dev->tx_pkt_burst = removed_tx_burst;
760 /* Disable datapath on secondary process. */
761 mlx5_mp_req_stop_rxtx(dev);
762 if (priv->rxqs != NULL) {
763 /* XXX race condition if mlx5_rx_burst() is still running. */
765 for (i = 0; (i != priv->rxqs_n); ++i)
766 mlx5_rxq_release(dev, i);
770 if (priv->txqs != NULL) {
771 /* XXX race condition if mlx5_tx_burst() is still running. */
773 for (i = 0; (i != priv->txqs_n); ++i)
774 mlx5_txq_release(dev, i);
778 mlx5_proc_priv_uninit(dev);
779 mlx5_mprq_free_mp(dev);
780 /* Remove from memory callback device list. */
781 rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
783 LIST_REMOVE(priv->sh, mem_event_cb);
784 rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
785 mlx5_free_shared_dr(priv);
786 if (priv->rss_conf.rss_key != NULL)
787 rte_free(priv->rss_conf.rss_key);
788 if (priv->reta_idx != NULL)
789 rte_free(priv->reta_idx);
791 mlx5_nl_mac_addr_flush(dev);
792 if (priv->nl_socket_route >= 0)
793 close(priv->nl_socket_route);
794 if (priv->nl_socket_rdma >= 0)
795 close(priv->nl_socket_rdma);
798 * Free the shared context in last turn, because the cleanup
799 * routines above may use some shared fields, like
800 * mlx5_nl_mac_addr_flush() uses ibdev_path for retrieveing
801 * ifindex if Netlink fails.
803 mlx5_free_shared_ibctx(priv->sh);
806 ret = mlx5_hrxq_ibv_verify(dev);
808 DRV_LOG(WARNING, "port %u some hash Rx queue still remain",
810 ret = mlx5_ind_table_ibv_verify(dev);
812 DRV_LOG(WARNING, "port %u some indirection table still remain",
814 ret = mlx5_rxq_ibv_verify(dev);
816 DRV_LOG(WARNING, "port %u some Verbs Rx queue still remain",
818 ret = mlx5_rxq_verify(dev);
820 DRV_LOG(WARNING, "port %u some Rx queues still remain",
822 ret = mlx5_txq_ibv_verify(dev);
824 DRV_LOG(WARNING, "port %u some Verbs Tx queue still remain",
826 ret = mlx5_txq_verify(dev);
828 DRV_LOG(WARNING, "port %u some Tx queues still remain",
830 ret = mlx5_flow_verify(dev);
832 DRV_LOG(WARNING, "port %u some flows still remain",
834 if (priv->domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
838 RTE_ETH_FOREACH_DEV_OF(port_id, dev->device) {
839 struct mlx5_priv *opriv =
840 rte_eth_devices[port_id].data->dev_private;
843 opriv->domain_id != priv->domain_id ||
844 &rte_eth_devices[port_id] == dev)
849 claim_zero(rte_eth_switch_domain_free(priv->domain_id));
851 memset(priv, 0, sizeof(*priv));
852 priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
854 * Reset mac_addrs to NULL such that it is not freed as part of
855 * rte_eth_dev_release_port(). mac_addrs is part of dev_private so
856 * it is freed when dev_private is freed.
858 dev->data->mac_addrs = NULL;
861 const struct eth_dev_ops mlx5_dev_ops = {
862 .dev_configure = mlx5_dev_configure,
863 .dev_start = mlx5_dev_start,
864 .dev_stop = mlx5_dev_stop,
865 .dev_set_link_down = mlx5_set_link_down,
866 .dev_set_link_up = mlx5_set_link_up,
867 .dev_close = mlx5_dev_close,
868 .promiscuous_enable = mlx5_promiscuous_enable,
869 .promiscuous_disable = mlx5_promiscuous_disable,
870 .allmulticast_enable = mlx5_allmulticast_enable,
871 .allmulticast_disable = mlx5_allmulticast_disable,
872 .link_update = mlx5_link_update,
873 .stats_get = mlx5_stats_get,
874 .stats_reset = mlx5_stats_reset,
875 .xstats_get = mlx5_xstats_get,
876 .xstats_reset = mlx5_xstats_reset,
877 .xstats_get_names = mlx5_xstats_get_names,
878 .fw_version_get = mlx5_fw_version_get,
879 .dev_infos_get = mlx5_dev_infos_get,
880 .read_clock = mlx5_read_clock,
881 .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
882 .vlan_filter_set = mlx5_vlan_filter_set,
883 .rx_queue_setup = mlx5_rx_queue_setup,
884 .tx_queue_setup = mlx5_tx_queue_setup,
885 .rx_queue_release = mlx5_rx_queue_release,
886 .tx_queue_release = mlx5_tx_queue_release,
887 .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
888 .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
889 .mac_addr_remove = mlx5_mac_addr_remove,
890 .mac_addr_add = mlx5_mac_addr_add,
891 .mac_addr_set = mlx5_mac_addr_set,
892 .set_mc_addr_list = mlx5_set_mc_addr_list,
893 .mtu_set = mlx5_dev_set_mtu,
894 .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
895 .vlan_offload_set = mlx5_vlan_offload_set,
896 .reta_update = mlx5_dev_rss_reta_update,
897 .reta_query = mlx5_dev_rss_reta_query,
898 .rss_hash_update = mlx5_rss_hash_update,
899 .rss_hash_conf_get = mlx5_rss_hash_conf_get,
900 .filter_ctrl = mlx5_dev_filter_ctrl,
901 .rx_descriptor_status = mlx5_rx_descriptor_status,
902 .tx_descriptor_status = mlx5_tx_descriptor_status,
903 .rx_queue_count = mlx5_rx_queue_count,
904 .rx_queue_intr_enable = mlx5_rx_intr_enable,
905 .rx_queue_intr_disable = mlx5_rx_intr_disable,
906 .is_removed = mlx5_is_removed,
909 /* Available operations from secondary process. */
910 static const struct eth_dev_ops mlx5_dev_sec_ops = {
911 .stats_get = mlx5_stats_get,
912 .stats_reset = mlx5_stats_reset,
913 .xstats_get = mlx5_xstats_get,
914 .xstats_reset = mlx5_xstats_reset,
915 .xstats_get_names = mlx5_xstats_get_names,
916 .fw_version_get = mlx5_fw_version_get,
917 .dev_infos_get = mlx5_dev_infos_get,
918 .rx_descriptor_status = mlx5_rx_descriptor_status,
919 .tx_descriptor_status = mlx5_tx_descriptor_status,
922 /* Available operations in flow isolated mode. */
923 const struct eth_dev_ops mlx5_dev_ops_isolate = {
924 .dev_configure = mlx5_dev_configure,
925 .dev_start = mlx5_dev_start,
926 .dev_stop = mlx5_dev_stop,
927 .dev_set_link_down = mlx5_set_link_down,
928 .dev_set_link_up = mlx5_set_link_up,
929 .dev_close = mlx5_dev_close,
930 .promiscuous_enable = mlx5_promiscuous_enable,
931 .promiscuous_disable = mlx5_promiscuous_disable,
932 .allmulticast_enable = mlx5_allmulticast_enable,
933 .allmulticast_disable = mlx5_allmulticast_disable,
934 .link_update = mlx5_link_update,
935 .stats_get = mlx5_stats_get,
936 .stats_reset = mlx5_stats_reset,
937 .xstats_get = mlx5_xstats_get,
938 .xstats_reset = mlx5_xstats_reset,
939 .xstats_get_names = mlx5_xstats_get_names,
940 .fw_version_get = mlx5_fw_version_get,
941 .dev_infos_get = mlx5_dev_infos_get,
942 .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
943 .vlan_filter_set = mlx5_vlan_filter_set,
944 .rx_queue_setup = mlx5_rx_queue_setup,
945 .tx_queue_setup = mlx5_tx_queue_setup,
946 .rx_queue_release = mlx5_rx_queue_release,
947 .tx_queue_release = mlx5_tx_queue_release,
948 .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
949 .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
950 .mac_addr_remove = mlx5_mac_addr_remove,
951 .mac_addr_add = mlx5_mac_addr_add,
952 .mac_addr_set = mlx5_mac_addr_set,
953 .set_mc_addr_list = mlx5_set_mc_addr_list,
954 .mtu_set = mlx5_dev_set_mtu,
955 .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
956 .vlan_offload_set = mlx5_vlan_offload_set,
957 .filter_ctrl = mlx5_dev_filter_ctrl,
958 .rx_descriptor_status = mlx5_rx_descriptor_status,
959 .tx_descriptor_status = mlx5_tx_descriptor_status,
960 .rx_queue_intr_enable = mlx5_rx_intr_enable,
961 .rx_queue_intr_disable = mlx5_rx_intr_disable,
962 .is_removed = mlx5_is_removed,
966 * Verify and store value for device argument.
969 * Key argument to verify.
971 * Value associated with key.
976 * 0 on success, a negative errno value otherwise and rte_errno is set.
979 mlx5_args_check(const char *key, const char *val, void *opaque)
981 struct mlx5_dev_config *config = opaque;
984 /* No-op, port representors are processed in mlx5_dev_spawn(). */
985 if (!strcmp(MLX5_REPRESENTOR, key))
988 tmp = strtoul(val, NULL, 0);
991 DRV_LOG(WARNING, "%s: \"%s\" is not a valid integer", key, val);
994 if (strcmp(MLX5_RXQ_CQE_COMP_EN, key) == 0) {
995 config->cqe_comp = !!tmp;
996 } else if (strcmp(MLX5_RXQ_CQE_PAD_EN, key) == 0) {
997 config->cqe_pad = !!tmp;
998 } else if (strcmp(MLX5_RXQ_PKT_PAD_EN, key) == 0) {
999 config->hw_padding = !!tmp;
1000 } else if (strcmp(MLX5_RX_MPRQ_EN, key) == 0) {
1001 config->mprq.enabled = !!tmp;
1002 } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_NUM, key) == 0) {
1003 config->mprq.stride_num_n = tmp;
1004 } else if (strcmp(MLX5_RX_MPRQ_MAX_MEMCPY_LEN, key) == 0) {
1005 config->mprq.max_memcpy_len = tmp;
1006 } else if (strcmp(MLX5_RXQS_MIN_MPRQ, key) == 0) {
1007 config->mprq.min_rxqs_num = tmp;
1008 } else if (strcmp(MLX5_TXQ_INLINE, key) == 0) {
1009 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1010 } else if (strcmp(MLX5_TXQS_MIN_INLINE, key) == 0) {
1011 config->txqs_inline = tmp;
1012 } else if (strcmp(MLX5_TXQS_MAX_VEC, key) == 0) {
1013 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1014 } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
1015 config->mps = !!tmp;
1016 } else if (strcmp(MLX5_TXQ_MPW_HDR_DSEG_EN, key) == 0) {
1017 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1018 } else if (strcmp(MLX5_TXQ_MAX_INLINE_LEN, key) == 0) {
1019 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1020 } else if (strcmp(MLX5_TX_VEC_EN, key) == 0) {
1021 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1022 } else if (strcmp(MLX5_RX_VEC_EN, key) == 0) {
1023 config->rx_vec_en = !!tmp;
1024 } else if (strcmp(MLX5_L3_VXLAN_EN, key) == 0) {
1025 config->l3_vxlan_en = !!tmp;
1026 } else if (strcmp(MLX5_VF_NL_EN, key) == 0) {
1027 config->vf_nl_en = !!tmp;
1028 } else if (strcmp(MLX5_DV_ESW_EN, key) == 0) {
1029 config->dv_esw_en = !!tmp;
1030 } else if (strcmp(MLX5_DV_FLOW_EN, key) == 0) {
1031 config->dv_flow_en = !!tmp;
1032 } else if (strcmp(MLX5_MR_EXT_MEMSEG_EN, key) == 0) {
1033 config->mr_ext_memseg_en = !!tmp;
1034 } else if (strcmp(MLX5_MAX_DUMP_FILES_NUM, key) == 0) {
1035 config->max_dump_files_num = tmp;
1037 DRV_LOG(WARNING, "%s: unknown parameter", key);
1045 * Parse device parameters.
1048 * Pointer to device configuration structure.
1050 * Device arguments structure.
1053 * 0 on success, a negative errno value otherwise and rte_errno is set.
1056 mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs)
1058 const char **params = (const char *[]){
1059 MLX5_RXQ_CQE_COMP_EN,
1060 MLX5_RXQ_CQE_PAD_EN,
1061 MLX5_RXQ_PKT_PAD_EN,
1063 MLX5_RX_MPRQ_LOG_STRIDE_NUM,
1064 MLX5_RX_MPRQ_MAX_MEMCPY_LEN,
1067 MLX5_TXQS_MIN_INLINE,
1070 MLX5_TXQ_MPW_HDR_DSEG_EN,
1071 MLX5_TXQ_MAX_INLINE_LEN,
1078 MLX5_MR_EXT_MEMSEG_EN,
1080 MLX5_MAX_DUMP_FILES_NUM,
1083 struct rte_kvargs *kvlist;
1087 if (devargs == NULL)
1089 /* Following UGLY cast is done to pass checkpatch. */
1090 kvlist = rte_kvargs_parse(devargs->args, params);
1091 if (kvlist == NULL) {
1095 /* Process parameters. */
1096 for (i = 0; (params[i] != NULL); ++i) {
1097 if (rte_kvargs_count(kvlist, params[i])) {
1098 ret = rte_kvargs_process(kvlist, params[i],
1099 mlx5_args_check, config);
1102 rte_kvargs_free(kvlist);
1107 rte_kvargs_free(kvlist);
1111 static struct rte_pci_driver mlx5_driver;
1114 * PMD global initialization.
1116 * Independent from individual device, this function initializes global
1117 * per-PMD data structures distinguishing primary and secondary processes.
1118 * Hence, each initialization is called once per a process.
1121 * 0 on success, a negative errno value otherwise and rte_errno is set.
1124 mlx5_init_once(void)
1126 struct mlx5_shared_data *sd;
1127 struct mlx5_local_data *ld = &mlx5_local_data;
1130 if (mlx5_init_shared_data())
1132 sd = mlx5_shared_data;
1134 rte_spinlock_lock(&sd->lock);
1135 switch (rte_eal_process_type()) {
1136 case RTE_PROC_PRIMARY:
1139 LIST_INIT(&sd->mem_event_cb_list);
1140 rte_rwlock_init(&sd->mem_event_rwlock);
1141 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
1142 mlx5_mr_mem_event_cb, NULL);
1143 ret = mlx5_mp_init_primary();
1146 sd->init_done = true;
1148 case RTE_PROC_SECONDARY:
1151 ret = mlx5_mp_init_secondary();
1154 ++sd->secondary_cnt;
1155 ld->init_done = true;
1161 rte_spinlock_unlock(&sd->lock);
1166 * Spawn an Ethernet device from Verbs information.
1169 * Backing DPDK device.
1171 * Verbs device parameters (name, port, switch_info) to spawn.
1173 * Device configuration parameters.
1176 * A valid Ethernet device object on success, NULL otherwise and rte_errno
1177 * is set. The following errors are defined:
1179 * EBUSY: device is not supposed to be spawned.
1180 * EEXIST: device is already spawned
1182 static struct rte_eth_dev *
1183 mlx5_dev_spawn(struct rte_device *dpdk_dev,
1184 struct mlx5_dev_spawn_data *spawn,
1185 struct mlx5_dev_config config)
1187 const struct mlx5_switch_info *switch_info = &spawn->info;
1188 struct mlx5_ibv_shared *sh = NULL;
1189 struct ibv_port_attr port_attr;
1190 struct mlx5dv_context dv_attr = { .comp_mask = 0 };
1191 struct rte_eth_dev *eth_dev = NULL;
1192 struct mlx5_priv *priv = NULL;
1194 unsigned int hw_padding = 0;
1196 unsigned int cqe_comp;
1197 unsigned int cqe_pad = 0;
1198 unsigned int tunnel_en = 0;
1199 unsigned int mpls_en = 0;
1200 unsigned int swp = 0;
1201 unsigned int mprq = 0;
1202 unsigned int mprq_min_stride_size_n = 0;
1203 unsigned int mprq_max_stride_size_n = 0;
1204 unsigned int mprq_min_stride_num_n = 0;
1205 unsigned int mprq_max_stride_num_n = 0;
1206 struct rte_ether_addr mac;
1207 char name[RTE_ETH_NAME_MAX_LEN];
1208 int own_domain_id = 0;
1212 /* Determine if this port representor is supposed to be spawned. */
1213 if (switch_info->representor && dpdk_dev->devargs) {
1214 struct rte_eth_devargs eth_da;
1216 err = rte_eth_devargs_parse(dpdk_dev->devargs->args, ð_da);
1219 DRV_LOG(ERR, "failed to process device arguments: %s",
1220 strerror(rte_errno));
1223 for (i = 0; i < eth_da.nb_representor_ports; ++i)
1224 if (eth_da.representor_ports[i] ==
1225 (uint16_t)switch_info->port_name)
1227 if (i == eth_da.nb_representor_ports) {
1232 /* Build device name. */
1233 if (!switch_info->representor)
1234 strlcpy(name, dpdk_dev->name, sizeof(name));
1236 snprintf(name, sizeof(name), "%s_representor_%u",
1237 dpdk_dev->name, switch_info->port_name);
1238 /* check if the device is already spawned */
1239 if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
1243 DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
1244 if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
1245 eth_dev = rte_eth_dev_attach_secondary(name);
1246 if (eth_dev == NULL) {
1247 DRV_LOG(ERR, "can not attach rte ethdev");
1251 eth_dev->device = dpdk_dev;
1252 eth_dev->dev_ops = &mlx5_dev_sec_ops;
1253 err = mlx5_proc_priv_init(eth_dev);
1256 /* Receive command fd from primary process */
1257 err = mlx5_mp_req_verbs_cmd_fd(eth_dev);
1260 /* Remap UAR for Tx queues. */
1261 err = mlx5_tx_uar_init_secondary(eth_dev, err);
1265 * Ethdev pointer is still required as input since
1266 * the primary device is not accessible from the
1267 * secondary process.
1269 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
1270 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
1273 sh = mlx5_alloc_shared_ibctx(spawn);
1276 config.devx = sh->devx;
1277 #ifdef HAVE_IBV_MLX5_MOD_SWP
1278 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
1281 * Multi-packet send is supported by ConnectX-4 Lx PF as well
1282 * as all ConnectX-5 devices.
1284 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1285 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
1287 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1288 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
1290 mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
1291 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
1292 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
1293 DRV_LOG(DEBUG, "enhanced MPW is supported");
1294 mps = MLX5_MPW_ENHANCED;
1296 DRV_LOG(DEBUG, "MPW is supported");
1300 DRV_LOG(DEBUG, "MPW isn't supported");
1301 mps = MLX5_MPW_DISABLED;
1303 #ifdef HAVE_IBV_MLX5_MOD_SWP
1304 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
1305 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
1306 DRV_LOG(DEBUG, "SWP support: %u", swp);
1309 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1310 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
1311 struct mlx5dv_striding_rq_caps mprq_caps =
1312 dv_attr.striding_rq_caps;
1314 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
1315 mprq_caps.min_single_stride_log_num_of_bytes);
1316 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
1317 mprq_caps.max_single_stride_log_num_of_bytes);
1318 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
1319 mprq_caps.min_single_wqe_log_num_of_strides);
1320 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
1321 mprq_caps.max_single_wqe_log_num_of_strides);
1322 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
1323 mprq_caps.supported_qpts);
1324 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
1326 mprq_min_stride_size_n =
1327 mprq_caps.min_single_stride_log_num_of_bytes;
1328 mprq_max_stride_size_n =
1329 mprq_caps.max_single_stride_log_num_of_bytes;
1330 mprq_min_stride_num_n =
1331 mprq_caps.min_single_wqe_log_num_of_strides;
1332 mprq_max_stride_num_n =
1333 mprq_caps.max_single_wqe_log_num_of_strides;
1334 config.mprq.stride_num_n = RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1335 mprq_min_stride_num_n);
1338 if (RTE_CACHE_LINE_SIZE == 128 &&
1339 !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP))
1343 config.cqe_comp = cqe_comp;
1344 #ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD
1345 /* Whether device supports 128B Rx CQE padding. */
1346 cqe_pad = RTE_CACHE_LINE_SIZE == 128 &&
1347 (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD);
1349 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1350 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
1351 tunnel_en = ((dv_attr.tunnel_offloads_caps &
1352 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
1353 (dv_attr.tunnel_offloads_caps &
1354 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE));
1356 DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
1357 tunnel_en ? "" : "not ");
1360 "tunnel offloading disabled due to old OFED/rdma-core version");
1362 config.tunnel_en = tunnel_en;
1363 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1364 mpls_en = ((dv_attr.tunnel_offloads_caps &
1365 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
1366 (dv_attr.tunnel_offloads_caps &
1367 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
1368 DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
1369 mpls_en ? "" : "not ");
1371 DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
1372 " old OFED/rdma-core version or firmware configuration");
1374 config.mpls_en = mpls_en;
1375 /* Check port status. */
1376 err = mlx5_glue->query_port(sh->ctx, spawn->ibv_port, &port_attr);
1378 DRV_LOG(ERR, "port query failed: %s", strerror(err));
1381 if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
1382 DRV_LOG(ERR, "port is not configured in Ethernet mode");
1386 if (port_attr.state != IBV_PORT_ACTIVE)
1387 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
1388 mlx5_glue->port_state_str(port_attr.state),
1390 /* Allocate private eth device data. */
1391 priv = rte_zmalloc("ethdev private structure",
1393 RTE_CACHE_LINE_SIZE);
1395 DRV_LOG(ERR, "priv allocation failure");
1400 priv->ibv_port = spawn->ibv_port;
1401 priv->mtu = RTE_ETHER_MTU;
1403 /* Initialize UAR access locks for 32bit implementations. */
1404 rte_spinlock_init(&priv->uar_lock_cq);
1405 for (i = 0; i < MLX5_UAR_PAGE_NUM_MAX; i++)
1406 rte_spinlock_init(&priv->uar_lock[i]);
1408 /* Some internal functions rely on Netlink sockets, open them now. */
1409 priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
1410 priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
1412 priv->representor = !!switch_info->representor;
1413 priv->master = !!switch_info->master;
1414 priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
1416 * Currently we support single E-Switch per PF configurations
1417 * only and vport_id field contains the vport index for
1418 * associated VF, which is deduced from representor port name.
1419 * For example, let's have the IB device port 10, it has
1420 * attached network device eth0, which has port name attribute
1421 * pf0vf2, we can deduce the VF number as 2, and set vport index
1422 * as 3 (2+1). This assigning schema should be changed if the
1423 * multiple E-Switch instances per PF configurations or/and PCI
1424 * subfunctions are added.
1426 priv->vport_id = switch_info->representor ?
1427 switch_info->port_name + 1 : -1;
1428 /* representor_id field keeps the unmodified port/VF index. */
1429 priv->representor_id = switch_info->representor ?
1430 switch_info->port_name : -1;
1432 * Look for sibling devices in order to reuse their switch domain
1433 * if any, otherwise allocate one.
1435 RTE_ETH_FOREACH_DEV_OF(port_id, dpdk_dev) {
1436 const struct mlx5_priv *opriv =
1437 rte_eth_devices[port_id].data->dev_private;
1441 RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
1443 priv->domain_id = opriv->domain_id;
1446 if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
1447 err = rte_eth_switch_domain_alloc(&priv->domain_id);
1450 DRV_LOG(ERR, "unable to allocate switch domain: %s",
1451 strerror(rte_errno));
1456 err = mlx5_args(&config, dpdk_dev->devargs);
1459 DRV_LOG(ERR, "failed to process device arguments: %s",
1460 strerror(rte_errno));
1463 config.hw_csum = !!(sh->device_attr.device_cap_flags_ex &
1464 IBV_DEVICE_RAW_IP_CSUM);
1465 DRV_LOG(DEBUG, "checksum offloading is %ssupported",
1466 (config.hw_csum ? "" : "not "));
1467 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
1468 !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1469 DRV_LOG(DEBUG, "counters are not supported");
1471 #ifndef HAVE_IBV_FLOW_DV_SUPPORT
1472 if (config.dv_flow_en) {
1473 DRV_LOG(WARNING, "DV flow is not supported");
1474 config.dv_flow_en = 0;
1477 config.ind_table_max_size =
1478 sh->device_attr.rss_caps.max_rwq_indirection_table_size;
1480 * Remove this check once DPDK supports larger/variable
1481 * indirection tables.
1483 if (config.ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
1484 config.ind_table_max_size = ETH_RSS_RETA_SIZE_512;
1485 DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
1486 config.ind_table_max_size);
1487 config.hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
1488 IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
1489 DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
1490 (config.hw_vlan_strip ? "" : "not "));
1491 config.hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
1492 IBV_RAW_PACKET_CAP_SCATTER_FCS);
1493 DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
1494 (config.hw_fcs_strip ? "" : "not "));
1495 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
1496 hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
1497 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
1498 hw_padding = !!(sh->device_attr.device_cap_flags_ex &
1499 IBV_DEVICE_PCI_WRITE_END_PADDING);
1501 if (config.hw_padding && !hw_padding) {
1502 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
1503 config.hw_padding = 0;
1504 } else if (config.hw_padding) {
1505 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
1507 config.tso = (sh->device_attr.tso_caps.max_tso > 0 &&
1508 (sh->device_attr.tso_caps.supported_qpts &
1509 (1 << IBV_QPT_RAW_PACKET)));
1511 config.tso_max_payload_sz = sh->device_attr.tso_caps.max_tso;
1513 * MPW is disabled by default, while the Enhanced MPW is enabled
1516 if (config.mps == MLX5_ARG_UNSET)
1517 config.mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
1520 config.mps = config.mps ? mps : MLX5_MPW_DISABLED;
1521 DRV_LOG(INFO, "%sMPS is %s",
1522 config.mps == MLX5_MPW_ENHANCED ? "enhanced " : "",
1523 config.mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
1524 if (config.cqe_comp && !cqe_comp) {
1525 DRV_LOG(WARNING, "Rx CQE compression isn't supported");
1526 config.cqe_comp = 0;
1528 if (config.cqe_pad && !cqe_pad) {
1529 DRV_LOG(WARNING, "Rx CQE padding isn't supported");
1531 } else if (config.cqe_pad) {
1532 DRV_LOG(INFO, "Rx CQE padding is enabled");
1534 if (config.mprq.enabled && mprq) {
1535 if (config.mprq.stride_num_n > mprq_max_stride_num_n ||
1536 config.mprq.stride_num_n < mprq_min_stride_num_n) {
1537 config.mprq.stride_num_n =
1538 RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1539 mprq_min_stride_num_n);
1541 "the number of strides"
1542 " for Multi-Packet RQ is out of range,"
1543 " setting default value (%u)",
1544 1 << config.mprq.stride_num_n);
1546 config.mprq.min_stride_size_n = mprq_min_stride_size_n;
1547 config.mprq.max_stride_size_n = mprq_max_stride_size_n;
1548 } else if (config.mprq.enabled && !mprq) {
1549 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1550 config.mprq.enabled = 0;
1552 if (config.max_dump_files_num == 0)
1553 config.max_dump_files_num = 128;
1554 eth_dev = rte_eth_dev_allocate(name);
1555 if (eth_dev == NULL) {
1556 DRV_LOG(ERR, "can not allocate rte ethdev");
1560 /* Flag to call rte_eth_dev_release_port() in rte_eth_dev_close(). */
1561 eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
1562 if (priv->representor) {
1563 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1564 eth_dev->data->representor_id = priv->representor_id;
1566 eth_dev->data->dev_private = priv;
1567 priv->dev_data = eth_dev->data;
1568 eth_dev->data->mac_addrs = priv->mac;
1569 eth_dev->device = dpdk_dev;
1570 /* Configure the first MAC address by default. */
1571 if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1573 "port %u cannot get MAC address, is mlx5_en"
1574 " loaded? (errno: %s)",
1575 eth_dev->data->port_id, strerror(rte_errno));
1580 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1581 eth_dev->data->port_id,
1582 mac.addr_bytes[0], mac.addr_bytes[1],
1583 mac.addr_bytes[2], mac.addr_bytes[3],
1584 mac.addr_bytes[4], mac.addr_bytes[5]);
1587 char ifname[IF_NAMESIZE];
1589 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1590 DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1591 eth_dev->data->port_id, ifname);
1593 DRV_LOG(DEBUG, "port %u ifname is unknown",
1594 eth_dev->data->port_id);
1597 /* Get actual MTU if possible. */
1598 err = mlx5_get_mtu(eth_dev, &priv->mtu);
1603 DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1605 /* Initialize burst functions to prevent crashes before link-up. */
1606 eth_dev->rx_pkt_burst = removed_rx_burst;
1607 eth_dev->tx_pkt_burst = removed_tx_burst;
1608 eth_dev->dev_ops = &mlx5_dev_ops;
1609 /* Register MAC address. */
1610 claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1611 if (config.vf && config.vf_nl_en)
1612 mlx5_nl_mac_addr_sync(eth_dev);
1613 TAILQ_INIT(&priv->flows);
1614 TAILQ_INIT(&priv->ctrl_flows);
1615 /* Hint libmlx5 to use PMD allocator for data plane resources */
1616 struct mlx5dv_ctx_allocators alctr = {
1617 .alloc = &mlx5_alloc_verbs_buf,
1618 .free = &mlx5_free_verbs_buf,
1621 mlx5_glue->dv_set_context_attr(sh->ctx,
1622 MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1623 (void *)((uintptr_t)&alctr));
1624 /* Bring Ethernet device up. */
1625 DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1626 eth_dev->data->port_id);
1627 mlx5_set_link_up(eth_dev);
1629 * Even though the interrupt handler is not installed yet,
1630 * interrupts will still trigger on the async_fd from
1631 * Verbs context returned by ibv_open_device().
1633 mlx5_link_update(eth_dev, 0);
1634 #ifdef HAVE_IBV_DEVX_OBJ
1636 priv->counter_fallback = 0;
1637 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config.hca_attr);
1642 if (!config.hca_attr.flow_counters_dump)
1643 priv->counter_fallback = 1;
1644 #ifndef HAVE_IBV_DEVX_ASYNC
1645 priv->counter_fallback = 1;
1647 if (priv->counter_fallback)
1648 DRV_LOG(INFO, "Use fall-back DV counter management\n");
1651 #ifdef HAVE_MLX5DV_DR_ESWITCH
1652 if (!(config.hca_attr.eswitch_manager && config.dv_flow_en &&
1653 (switch_info->representor || switch_info->master)))
1654 config.dv_esw_en = 0;
1656 config.dv_esw_en = 0;
1658 /* Store device configuration on private structure. */
1659 priv->config = config;
1660 if (config.dv_flow_en) {
1661 err = mlx5_alloc_shared_dr(priv);
1665 /* Supported Verbs flow priority number detection. */
1666 err = mlx5_flow_discover_priorities(eth_dev);
1671 priv->config.flow_prio = err;
1672 /* Add device to memory callback list. */
1673 rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
1674 LIST_INSERT_HEAD(&mlx5_shared_data->mem_event_cb_list,
1676 rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
1681 mlx5_free_shared_dr(priv);
1682 if (priv->nl_socket_route >= 0)
1683 close(priv->nl_socket_route);
1684 if (priv->nl_socket_rdma >= 0)
1685 close(priv->nl_socket_rdma);
1687 claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1689 if (eth_dev != NULL)
1690 eth_dev->data->dev_private = NULL;
1692 if (eth_dev != NULL) {
1693 /* mac_addrs must not be freed alone because part of dev_private */
1694 eth_dev->data->mac_addrs = NULL;
1695 rte_eth_dev_release_port(eth_dev);
1698 mlx5_free_shared_ibctx(sh);
1705 * Comparison callback to sort device data.
1707 * This is meant to be used with qsort().
1710 * Pointer to pointer to first data object.
1712 * Pointer to pointer to second data object.
1715 * 0 if both objects are equal, less than 0 if the first argument is less
1716 * than the second, greater than 0 otherwise.
1719 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1721 const struct mlx5_switch_info *si_a =
1722 &((const struct mlx5_dev_spawn_data *)a)->info;
1723 const struct mlx5_switch_info *si_b =
1724 &((const struct mlx5_dev_spawn_data *)b)->info;
1727 /* Master device first. */
1728 ret = si_b->master - si_a->master;
1731 /* Then representor devices. */
1732 ret = si_b->representor - si_a->representor;
1735 /* Unidentified devices come last in no specific order. */
1736 if (!si_a->representor)
1738 /* Order representors by name. */
1739 return si_a->port_name - si_b->port_name;
1743 * DPDK callback to register a PCI device.
1745 * This function spawns Ethernet devices out of a given PCI device.
1747 * @param[in] pci_drv
1748 * PCI driver structure (mlx5_driver).
1749 * @param[in] pci_dev
1750 * PCI device information.
1753 * 0 on success, a negative errno value otherwise and rte_errno is set.
1756 mlx5_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1757 struct rte_pci_device *pci_dev)
1759 struct ibv_device **ibv_list;
1761 * Number of found IB Devices matching with requested PCI BDF.
1762 * nd != 1 means there are multiple IB devices over the same
1763 * PCI device and we have representors and master.
1765 unsigned int nd = 0;
1767 * Number of found IB device Ports. nd = 1 and np = 1..n means
1768 * we have the single multiport IB device, and there may be
1769 * representors attached to some of found ports.
1771 unsigned int np = 0;
1773 * Number of DPDK ethernet devices to Spawn - either over
1774 * multiple IB devices or multiple ports of single IB device.
1775 * Actually this is the number of iterations to spawn.
1777 unsigned int ns = 0;
1778 struct mlx5_dev_config dev_config;
1781 ret = mlx5_init_once();
1783 DRV_LOG(ERR, "unable to init PMD global data: %s",
1784 strerror(rte_errno));
1787 assert(pci_drv == &mlx5_driver);
1789 ibv_list = mlx5_glue->get_device_list(&ret);
1791 rte_errno = errno ? errno : ENOSYS;
1792 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
1796 * First scan the list of all Infiniband devices to find
1797 * matching ones, gathering into the list.
1799 struct ibv_device *ibv_match[ret + 1];
1805 struct rte_pci_addr pci_addr;
1807 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
1808 if (mlx5_ibv_device_to_pci_addr(ibv_list[ret], &pci_addr))
1810 if (pci_dev->addr.domain != pci_addr.domain ||
1811 pci_dev->addr.bus != pci_addr.bus ||
1812 pci_dev->addr.devid != pci_addr.devid ||
1813 pci_dev->addr.function != pci_addr.function)
1815 DRV_LOG(INFO, "PCI information matches for device \"%s\"",
1816 ibv_list[ret]->name);
1817 ibv_match[nd++] = ibv_list[ret];
1819 ibv_match[nd] = NULL;
1821 /* No device matches, just complain and bail out. */
1822 mlx5_glue->free_device_list(ibv_list);
1824 "no Verbs device matches PCI device " PCI_PRI_FMT ","
1825 " are kernel drivers loaded?",
1826 pci_dev->addr.domain, pci_dev->addr.bus,
1827 pci_dev->addr.devid, pci_dev->addr.function);
1832 nl_route = mlx5_nl_init(NETLINK_ROUTE);
1833 nl_rdma = mlx5_nl_init(NETLINK_RDMA);
1836 * Found single matching device may have multiple ports.
1837 * Each port may be representor, we have to check the port
1838 * number and check the representors existence.
1841 np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
1843 DRV_LOG(WARNING, "can not get IB device \"%s\""
1844 " ports number", ibv_match[0]->name);
1847 * Now we can determine the maximal
1848 * amount of devices to be spawned.
1850 struct mlx5_dev_spawn_data list[np ? np : nd];
1854 * Single IB device with multiple ports found,
1855 * it may be E-Switch master device and representors.
1856 * We have to perform identification trough the ports.
1858 assert(nl_rdma >= 0);
1861 for (i = 1; i <= np; ++i) {
1862 list[ns].max_port = np;
1863 list[ns].ibv_port = i;
1864 list[ns].ibv_dev = ibv_match[0];
1865 list[ns].eth_dev = NULL;
1866 list[ns].pci_dev = pci_dev;
1867 list[ns].ifindex = mlx5_nl_ifindex
1868 (nl_rdma, list[ns].ibv_dev->name, i);
1869 if (!list[ns].ifindex) {
1871 * No network interface index found for the
1872 * specified port, it means there is no
1873 * representor on this port. It's OK,
1874 * there can be disabled ports, for example
1875 * if sriov_numvfs < sriov_totalvfs.
1881 ret = mlx5_nl_switch_info
1885 if (ret || (!list[ns].info.representor &&
1886 !list[ns].info.master)) {
1888 * We failed to recognize representors with
1889 * Netlink, let's try to perform the task
1892 ret = mlx5_sysfs_switch_info
1896 if (!ret && (list[ns].info.representor ^
1897 list[ns].info.master))
1902 "unable to recognize master/representors"
1903 " on the IB device with multiple ports");
1910 * The existence of several matching entries (nd > 1) means
1911 * port representors have been instantiated. No existing Verbs
1912 * call nor sysfs entries can tell them apart, this can only
1913 * be done through Netlink calls assuming kernel drivers are
1914 * recent enough to support them.
1916 * In the event of identification failure through Netlink,
1917 * try again through sysfs, then:
1919 * 1. A single IB device matches (nd == 1) with single
1920 * port (np=0/1) and is not a representor, assume
1921 * no switch support.
1923 * 2. Otherwise no safe assumptions can be made;
1924 * complain louder and bail out.
1927 for (i = 0; i != nd; ++i) {
1928 memset(&list[ns].info, 0, sizeof(list[ns].info));
1929 list[ns].max_port = 1;
1930 list[ns].ibv_port = 1;
1931 list[ns].ibv_dev = ibv_match[i];
1932 list[ns].eth_dev = NULL;
1933 list[ns].pci_dev = pci_dev;
1934 list[ns].ifindex = 0;
1936 list[ns].ifindex = mlx5_nl_ifindex
1937 (nl_rdma, list[ns].ibv_dev->name, 1);
1938 if (!list[ns].ifindex) {
1939 char ifname[IF_NAMESIZE];
1942 * Netlink failed, it may happen with old
1943 * ib_core kernel driver (before 4.16).
1944 * We can assume there is old driver because
1945 * here we are processing single ports IB
1946 * devices. Let's try sysfs to retrieve
1947 * the ifindex. The method works for
1948 * master device only.
1952 * Multiple devices found, assume
1953 * representors, can not distinguish
1954 * master/representor and retrieve
1955 * ifindex via sysfs.
1959 ret = mlx5_get_master_ifname
1960 (ibv_match[i]->ibdev_path, &ifname);
1963 if_nametoindex(ifname);
1964 if (!list[ns].ifindex) {
1966 * No network interface index found
1967 * for the specified device, it means
1968 * there it is neither representor
1976 ret = mlx5_nl_switch_info
1980 if (ret || (!list[ns].info.representor &&
1981 !list[ns].info.master)) {
1983 * We failed to recognize representors with
1984 * Netlink, let's try to perform the task
1987 ret = mlx5_sysfs_switch_info
1991 if (!ret && (list[ns].info.representor ^
1992 list[ns].info.master)) {
1994 } else if ((nd == 1) &&
1995 !list[ns].info.representor &&
1996 !list[ns].info.master) {
1998 * Single IB device with
1999 * one physical port and
2000 * attached network device.
2001 * May be SRIOV is not enabled
2002 * or there is no representors.
2004 DRV_LOG(INFO, "no E-Switch support detected");
2011 "unable to recognize master/representors"
2012 " on the multiple IB devices");
2020 * Sort list to probe devices in natural order for users convenience
2021 * (i.e. master first, then representors from lowest to highest ID).
2023 qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
2024 /* Default configuration. */
2025 dev_config = (struct mlx5_dev_config){
2027 .mps = MLX5_ARG_UNSET,
2029 .txqs_inline = MLX5_ARG_UNSET,
2031 .mr_ext_memseg_en = 1,
2033 .enabled = 0, /* Disabled by default. */
2034 .stride_num_n = MLX5_MPRQ_STRIDE_NUM_N,
2035 .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN,
2036 .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
2040 /* Device specific configuration. */
2041 switch (pci_dev->id.device_id) {
2042 case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
2043 case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
2044 case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
2045 case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
2051 for (i = 0; i != ns; ++i) {
2054 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
2057 if (!list[i].eth_dev) {
2058 if (rte_errno != EBUSY && rte_errno != EEXIST)
2060 /* Device is disabled or already spawned. Ignore it. */
2063 restore = list[i].eth_dev->data->dev_flags;
2064 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
2065 /* Restore non-PCI flags cleared by the above call. */
2066 list[i].eth_dev->data->dev_flags |= restore;
2067 rte_eth_dev_probing_finish(list[i].eth_dev);
2071 "probe of PCI device " PCI_PRI_FMT " aborted after"
2072 " encountering an error: %s",
2073 pci_dev->addr.domain, pci_dev->addr.bus,
2074 pci_dev->addr.devid, pci_dev->addr.function,
2075 strerror(rte_errno));
2079 if (!list[i].eth_dev)
2081 mlx5_dev_close(list[i].eth_dev);
2082 /* mac_addrs must not be freed because in dev_private */
2083 list[i].eth_dev->data->mac_addrs = NULL;
2084 claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
2086 /* Restore original error. */
2093 * Do the routine cleanup:
2094 * - close opened Netlink sockets
2095 * - free the Infiniband device list
2102 mlx5_glue->free_device_list(ibv_list);
2107 * DPDK callback to remove a PCI device.
2109 * This function removes all Ethernet devices belong to a given PCI device.
2111 * @param[in] pci_dev
2112 * Pointer to the PCI device.
2115 * 0 on success, the function cannot fail.
2118 mlx5_pci_remove(struct rte_pci_device *pci_dev)
2122 RTE_ETH_FOREACH_DEV_OF(port_id, &pci_dev->device)
2123 rte_eth_dev_close(port_id);
2127 static const struct rte_pci_id mlx5_pci_id_map[] = {
2129 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2130 PCI_DEVICE_ID_MELLANOX_CONNECTX4)
2133 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2134 PCI_DEVICE_ID_MELLANOX_CONNECTX4VF)
2137 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2138 PCI_DEVICE_ID_MELLANOX_CONNECTX4LX)
2141 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2142 PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF)
2145 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2146 PCI_DEVICE_ID_MELLANOX_CONNECTX5)
2149 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2150 PCI_DEVICE_ID_MELLANOX_CONNECTX5VF)
2153 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2154 PCI_DEVICE_ID_MELLANOX_CONNECTX5EX)
2157 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2158 PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF)
2161 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2162 PCI_DEVICE_ID_MELLANOX_CONNECTX5BF)
2165 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2166 PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF)
2169 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2170 PCI_DEVICE_ID_MELLANOX_CONNECTX6)
2173 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2174 PCI_DEVICE_ID_MELLANOX_CONNECTX6VF)
2181 static struct rte_pci_driver mlx5_driver = {
2183 .name = MLX5_DRIVER_NAME
2185 .id_table = mlx5_pci_id_map,
2186 .probe = mlx5_pci_probe,
2187 .remove = mlx5_pci_remove,
2188 .dma_map = mlx5_dma_map,
2189 .dma_unmap = mlx5_dma_unmap,
2190 .drv_flags = RTE_PCI_DRV_INTR_LSC | RTE_PCI_DRV_INTR_RMV |
2191 RTE_PCI_DRV_PROBE_AGAIN,
2194 #ifdef RTE_IBVERBS_LINK_DLOPEN
2197 * Suffix RTE_EAL_PMD_PATH with "-glue".
2199 * This function performs a sanity check on RTE_EAL_PMD_PATH before
2200 * suffixing its last component.
2203 * Output buffer, should be large enough otherwise NULL is returned.
2208 * Pointer to @p buf or @p NULL in case suffix cannot be appended.
2211 mlx5_glue_path(char *buf, size_t size)
2213 static const char *const bad[] = { "/", ".", "..", NULL };
2214 const char *path = RTE_EAL_PMD_PATH;
2215 size_t len = strlen(path);
2219 while (len && path[len - 1] == '/')
2221 for (off = len; off && path[off - 1] != '/'; --off)
2223 for (i = 0; bad[i]; ++i)
2224 if (!strncmp(path + off, bad[i], (int)(len - off)))
2226 i = snprintf(buf, size, "%.*s-glue", (int)len, path);
2227 if (i == -1 || (size_t)i >= size)
2232 "unable to append \"-glue\" to last component of"
2233 " RTE_EAL_PMD_PATH (\"" RTE_EAL_PMD_PATH "\"),"
2234 " please re-configure DPDK");
2239 * Initialization routine for run-time dependency on rdma-core.
2242 mlx5_glue_init(void)
2244 char glue_path[sizeof(RTE_EAL_PMD_PATH) - 1 + sizeof("-glue")];
2245 const char *path[] = {
2247 * A basic security check is necessary before trusting
2248 * MLX5_GLUE_PATH, which may override RTE_EAL_PMD_PATH.
2250 (geteuid() == getuid() && getegid() == getgid() ?
2251 getenv("MLX5_GLUE_PATH") : NULL),
2253 * When RTE_EAL_PMD_PATH is set, use its glue-suffixed
2254 * variant, otherwise let dlopen() look up libraries on its
2257 (*RTE_EAL_PMD_PATH ?
2258 mlx5_glue_path(glue_path, sizeof(glue_path)) : ""),
2261 void *handle = NULL;
2265 while (!handle && i != RTE_DIM(path)) {
2274 end = strpbrk(path[i], ":;");
2276 end = path[i] + strlen(path[i]);
2277 len = end - path[i];
2282 ret = snprintf(name, sizeof(name), "%.*s%s" MLX5_GLUE,
2284 (!len || *(end - 1) == '/') ? "" : "/");
2287 if (sizeof(name) != (size_t)ret + 1)
2289 DRV_LOG(DEBUG, "looking for rdma-core glue as \"%s\"",
2291 handle = dlopen(name, RTLD_LAZY);
2302 DRV_LOG(WARNING, "cannot load glue library: %s", dlmsg);
2305 sym = dlsym(handle, "mlx5_glue");
2306 if (!sym || !*sym) {
2310 DRV_LOG(ERR, "cannot resolve glue symbol: %s", dlmsg);
2319 "cannot initialize PMD due to missing run-time dependency on"
2320 " rdma-core libraries (libibverbs, libmlx5)");
2327 * Driver initialization routine.
2329 RTE_INIT(rte_mlx5_pmd_init)
2331 /* Initialize driver log type. */
2332 mlx5_logtype = rte_log_register("pmd.net.mlx5");
2333 if (mlx5_logtype >= 0)
2334 rte_log_set_level(mlx5_logtype, RTE_LOG_NOTICE);
2336 /* Build the static tables for Verbs conversion. */
2337 mlx5_set_ptype_table();
2338 mlx5_set_cksum_table();
2339 mlx5_set_swp_types_table();
2341 * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
2342 * huge pages. Calling ibv_fork_init() during init allows
2343 * applications to use fork() safely for purposes other than
2344 * using this PMD, which is not supported in forked processes.
2346 setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
2347 /* Match the size of Rx completion entry to the size of a cacheline. */
2348 if (RTE_CACHE_LINE_SIZE == 128)
2349 setenv("MLX5_CQE_SIZE", "128", 0);
2351 * MLX5_DEVICE_FATAL_CLEANUP tells ibv_destroy functions to
2352 * cleanup all the Verbs resources even when the device was removed.
2354 setenv("MLX5_DEVICE_FATAL_CLEANUP", "1", 1);
2355 #ifdef RTE_IBVERBS_LINK_DLOPEN
2356 if (mlx5_glue_init())
2361 /* Glue structure must not contain any NULL pointers. */
2365 for (i = 0; i != sizeof(*mlx5_glue) / sizeof(void *); ++i)
2366 assert(((const void *const *)mlx5_glue)[i]);
2369 if (strcmp(mlx5_glue->version, MLX5_GLUE_VERSION)) {
2371 "rdma-core glue \"%s\" mismatch: \"%s\" is required",
2372 mlx5_glue->version, MLX5_GLUE_VERSION);
2375 mlx5_glue->fork_init();
2376 rte_pci_register(&mlx5_driver);
2379 RTE_PMD_EXPORT_NAME(net_mlx5, __COUNTER__);
2380 RTE_PMD_REGISTER_PCI_TABLE(net_mlx5, mlx5_pci_id_map);
2381 RTE_PMD_REGISTER_KMOD_DEP(net_mlx5, "* ib_uverbs & mlx5_core & mlx5_ib");