1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2015 6WIND S.A.
3 * Copyright 2020 Mellanox Technologies, Ltd
13 #include <linux/rtnetlink.h>
14 #include <linux/sockios.h>
15 #include <linux/ethtool.h>
18 #include <rte_malloc.h>
19 #include <ethdev_driver.h>
20 #include <ethdev_pci.h>
22 #include <rte_bus_pci.h>
23 #include <rte_bus_auxiliary.h>
24 #include <rte_common.h>
25 #include <rte_kvargs.h>
26 #include <rte_rwlock.h>
27 #include <rte_spinlock.h>
28 #include <rte_string_fns.h>
29 #include <rte_alarm.h>
30 #include <rte_eal_paging.h>
32 #include <mlx5_glue.h>
33 #include <mlx5_devx_cmds.h>
34 #include <mlx5_common.h>
35 #include <mlx5_common_mp.h>
36 #include <mlx5_common_mr.h>
37 #include <mlx5_malloc.h>
39 #include "mlx5_defs.h"
41 #include "mlx5_common_os.h"
42 #include "mlx5_utils.h"
43 #include "mlx5_rxtx.h"
46 #include "mlx5_autoconf.h"
48 #include "mlx5_flow.h"
49 #include "rte_pmd_mlx5.h"
50 #include "mlx5_verbs.h"
52 #include "mlx5_devx.h"
54 #ifndef HAVE_IBV_MLX5_MOD_MPW
55 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
56 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
59 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
60 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
63 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
65 /* Spinlock for mlx5_shared_data allocation. */
66 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
68 /* Process local data for secondary processes. */
69 static struct mlx5_local_data mlx5_local_data;
71 /* rte flow indexed pool configuration. */
72 static struct mlx5_indexed_pool_config icfg[] = {
74 .size = sizeof(struct rte_flow),
78 .malloc = mlx5_malloc,
81 .type = "ctl_flow_ipool",
84 .size = sizeof(struct rte_flow),
90 .malloc = mlx5_malloc,
92 .per_core_cache = 1 << 14,
93 .type = "rte_flow_ipool",
96 .size = sizeof(struct rte_flow),
102 .malloc = mlx5_malloc,
105 .type = "mcp_flow_ipool",
110 * Set the completion channel file descriptor interrupt as non-blocking.
113 * Pointer to RQ channel object, which includes the channel fd
116 * The file descriptor (representing the intetrrupt) used in this channel.
119 * 0 on successfully setting the fd to non-blocking, non-zero otherwise.
122 mlx5_os_set_nonblock_channel_fd(int fd)
126 flags = fcntl(fd, F_GETFL);
127 return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
131 * Get mlx5 device attributes. The glue function query_device_ex() is called
132 * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
133 * device attributes from the glue out parameter.
136 * Pointer to ibv context.
139 * Pointer to mlx5 device attributes.
142 * 0 on success, non zero error number otherwise
145 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
148 struct ibv_device_attr_ex attr_ex;
149 memset(device_attr, 0, sizeof(*device_attr));
150 err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
154 device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
155 device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
156 device_attr->max_sge = attr_ex.orig_attr.max_sge;
157 device_attr->max_cq = attr_ex.orig_attr.max_cq;
158 device_attr->max_cqe = attr_ex.orig_attr.max_cqe;
159 device_attr->max_mr = attr_ex.orig_attr.max_mr;
160 device_attr->max_pd = attr_ex.orig_attr.max_pd;
161 device_attr->max_qp = attr_ex.orig_attr.max_qp;
162 device_attr->max_srq = attr_ex.orig_attr.max_srq;
163 device_attr->max_srq_wr = attr_ex.orig_attr.max_srq_wr;
164 device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
165 device_attr->max_rwq_indirection_table_size =
166 attr_ex.rss_caps.max_rwq_indirection_table_size;
167 device_attr->max_tso = attr_ex.tso_caps.max_tso;
168 device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
170 struct mlx5dv_context dv_attr = { .comp_mask = 0 };
171 err = mlx5_glue->dv_query_device(ctx, &dv_attr);
175 device_attr->flags = dv_attr.flags;
176 device_attr->comp_mask = dv_attr.comp_mask;
177 #ifdef HAVE_IBV_MLX5_MOD_SWP
178 device_attr->sw_parsing_offloads =
179 dv_attr.sw_parsing_caps.sw_parsing_offloads;
181 device_attr->min_single_stride_log_num_of_bytes =
182 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
183 device_attr->max_single_stride_log_num_of_bytes =
184 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
185 device_attr->min_single_wqe_log_num_of_strides =
186 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
187 device_attr->max_single_wqe_log_num_of_strides =
188 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
189 device_attr->stride_supported_qpts =
190 dv_attr.striding_rq_caps.supported_qpts;
191 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
192 device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
194 strlcpy(device_attr->fw_ver, attr_ex.orig_attr.fw_ver,
195 sizeof(device_attr->fw_ver));
201 * Verbs callback to allocate a memory. This function should allocate the space
202 * according to the size provided residing inside a huge page.
203 * Please note that all allocation must respect the alignment from libmlx5
204 * (i.e. currently rte_mem_page_size()).
207 * The size in bytes of the memory to allocate.
209 * A pointer to the callback data.
212 * Allocated buffer, NULL otherwise and rte_errno is set.
215 mlx5_alloc_verbs_buf(size_t size, void *data)
217 struct mlx5_dev_ctx_shared *sh = data;
219 size_t alignment = rte_mem_page_size();
220 if (alignment == (size_t)-1) {
221 DRV_LOG(ERR, "Failed to get mem page size");
226 MLX5_ASSERT(data != NULL);
227 ret = mlx5_malloc(0, size, alignment, sh->numa_node);
234 * Detect misc5 support or not
237 * Device private data pointer
239 #ifdef HAVE_MLX5DV_DR
241 __mlx5_discovery_misc5_cap(struct mlx5_priv *priv)
243 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
244 /* Dummy VxLAN matcher to detect rdma-core misc5 cap
245 * Case: IPv4--->UDP--->VxLAN--->vni
248 struct mlx5_flow_dv_match_params matcher_mask;
253 uint32_t *tunnel_header_m;
254 struct mlx5dv_flow_matcher_attr dv_attr;
256 memset(&matcher_mask, 0, sizeof(matcher_mask));
257 matcher_mask.size = sizeof(matcher_mask.buf);
258 match_m = matcher_mask.buf;
259 headers_m = MLX5_ADDR_OF(fte_match_param, match_m, outer_headers);
260 misc5_m = MLX5_ADDR_OF(fte_match_param,
261 match_m, misc_parameters_5);
262 tunnel_header_m = (uint32_t *)
263 MLX5_ADDR_OF(fte_match_set_misc5,
264 misc5_m, tunnel_header_1);
265 MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
266 MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 4);
267 MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport, 0xffff);
268 *tunnel_header_m = 0xffffff;
270 tbl = mlx5_glue->dr_create_flow_tbl(priv->sh->rx_domain, 1);
272 DRV_LOG(INFO, "No SW steering support");
275 dv_attr.type = IBV_FLOW_ATTR_NORMAL,
276 dv_attr.match_mask = (void *)&matcher_mask,
277 dv_attr.match_criteria_enable =
278 (1 << MLX5_MATCH_CRITERIA_ENABLE_OUTER_BIT) |
279 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC5_BIT);
280 dv_attr.priority = 3;
281 #ifdef HAVE_MLX5DV_DR_ESWITCH
283 if (priv->config.dv_esw_en) {
284 /* FDB enabled reg_c_0 */
285 dv_attr.match_criteria_enable |=
286 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC2_BIT);
287 misc2_m = MLX5_ADDR_OF(fte_match_param,
288 match_m, misc_parameters_2);
289 MLX5_SET(fte_match_set_misc2, misc2_m,
290 metadata_reg_c_0, 0xffff);
293 matcher = mlx5_glue->dv_create_flow_matcher(priv->sh->ctx,
296 priv->sh->misc5_cap = 1;
297 mlx5_glue->dv_destroy_flow_matcher(matcher);
299 mlx5_glue->dr_destroy_flow_tbl(tbl);
307 * Verbs callback to free a memory.
310 * A pointer to the memory to free.
312 * A pointer to the callback data.
315 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
317 MLX5_ASSERT(data != NULL);
322 * Initialize DR related data within private structure.
323 * Routine checks the reference counter and does actual
324 * resources creation/initialization only if counter is zero.
327 * Pointer to the private device data structure.
330 * Zero on success, positive error code otherwise.
333 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
335 struct mlx5_dev_ctx_shared *sh = priv->sh;
336 char s[MLX5_NAME_SIZE] __rte_unused;
339 MLX5_ASSERT(sh && sh->refcnt);
342 err = mlx5_alloc_table_hash_list(priv);
345 /* The resources below are only valid with DV support. */
346 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
347 /* Init port id action list. */
348 snprintf(s, sizeof(s), "%s_port_id_action_list", sh->ibdev_name);
349 sh->port_id_action_list = mlx5_list_create(s, sh, true,
350 flow_dv_port_id_create_cb,
351 flow_dv_port_id_match_cb,
352 flow_dv_port_id_remove_cb,
353 flow_dv_port_id_clone_cb,
354 flow_dv_port_id_clone_free_cb);
355 if (!sh->port_id_action_list)
357 /* Init push vlan action list. */
358 snprintf(s, sizeof(s), "%s_push_vlan_action_list", sh->ibdev_name);
359 sh->push_vlan_action_list = mlx5_list_create(s, sh, true,
360 flow_dv_push_vlan_create_cb,
361 flow_dv_push_vlan_match_cb,
362 flow_dv_push_vlan_remove_cb,
363 flow_dv_push_vlan_clone_cb,
364 flow_dv_push_vlan_clone_free_cb);
365 if (!sh->push_vlan_action_list)
367 /* Init sample action list. */
368 snprintf(s, sizeof(s), "%s_sample_action_list", sh->ibdev_name);
369 sh->sample_action_list = mlx5_list_create(s, sh, true,
370 flow_dv_sample_create_cb,
371 flow_dv_sample_match_cb,
372 flow_dv_sample_remove_cb,
373 flow_dv_sample_clone_cb,
374 flow_dv_sample_clone_free_cb);
375 if (!sh->sample_action_list)
377 /* Init dest array action list. */
378 snprintf(s, sizeof(s), "%s_dest_array_list", sh->ibdev_name);
379 sh->dest_array_list = mlx5_list_create(s, sh, true,
380 flow_dv_dest_array_create_cb,
381 flow_dv_dest_array_match_cb,
382 flow_dv_dest_array_remove_cb,
383 flow_dv_dest_array_clone_cb,
384 flow_dv_dest_array_clone_free_cb);
385 if (!sh->dest_array_list)
388 #ifdef HAVE_MLX5DV_DR
391 /* Reference counter is zero, we should initialize structures. */
392 domain = mlx5_glue->dr_create_domain(sh->ctx,
393 MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
395 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
399 sh->rx_domain = domain;
400 domain = mlx5_glue->dr_create_domain(sh->ctx,
401 MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
403 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
407 sh->tx_domain = domain;
408 #ifdef HAVE_MLX5DV_DR_ESWITCH
409 if (priv->config.dv_esw_en) {
410 domain = mlx5_glue->dr_create_domain
411 (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
413 DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
417 sh->fdb_domain = domain;
420 * The drop action is just some dummy placeholder in rdma-core. It
421 * does not belong to domains and has no any attributes, and, can be
422 * shared by the entire device.
424 sh->dr_drop_action = mlx5_glue->dr_create_flow_action_drop();
425 if (!sh->dr_drop_action) {
426 DRV_LOG(ERR, "FDB mlx5dv_dr_create_flow_action_drop");
431 if (!sh->tunnel_hub && priv->config.dv_miss_info)
432 err = mlx5_alloc_tunnel_hub(sh);
434 DRV_LOG(ERR, "mlx5_alloc_tunnel_hub failed err=%d", err);
437 if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
438 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
439 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
441 mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
443 sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
444 if (!priv->config.allow_duplicate_pattern) {
445 #ifndef HAVE_MLX5_DR_ALLOW_DUPLICATE
446 DRV_LOG(WARNING, "Disallow duplicate pattern is not supported - maybe old rdma-core version?");
448 mlx5_glue->dr_allow_duplicate_rules(sh->rx_domain, 0);
449 mlx5_glue->dr_allow_duplicate_rules(sh->tx_domain, 0);
451 mlx5_glue->dr_allow_duplicate_rules(sh->fdb_domain, 0);
454 __mlx5_discovery_misc5_cap(priv);
455 #endif /* HAVE_MLX5DV_DR */
456 sh->default_miss_action =
457 mlx5_glue->dr_create_flow_action_default_miss();
458 if (!sh->default_miss_action)
459 DRV_LOG(WARNING, "Default miss action is not supported.");
462 /* Rollback the created objects. */
464 mlx5_glue->dr_destroy_domain(sh->rx_domain);
465 sh->rx_domain = NULL;
468 mlx5_glue->dr_destroy_domain(sh->tx_domain);
469 sh->tx_domain = NULL;
471 if (sh->fdb_domain) {
472 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
473 sh->fdb_domain = NULL;
475 if (sh->dr_drop_action) {
476 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
477 sh->dr_drop_action = NULL;
479 if (sh->pop_vlan_action) {
480 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
481 sh->pop_vlan_action = NULL;
483 if (sh->encaps_decaps) {
484 mlx5_hlist_destroy(sh->encaps_decaps);
485 sh->encaps_decaps = NULL;
487 if (sh->modify_cmds) {
488 mlx5_hlist_destroy(sh->modify_cmds);
489 sh->modify_cmds = NULL;
492 /* tags should be destroyed with flow before. */
493 mlx5_hlist_destroy(sh->tag_table);
494 sh->tag_table = NULL;
496 if (sh->tunnel_hub) {
497 mlx5_release_tunnel_hub(sh, priv->dev_port);
498 sh->tunnel_hub = NULL;
500 mlx5_free_table_hash_list(priv);
501 if (sh->port_id_action_list) {
502 mlx5_list_destroy(sh->port_id_action_list);
503 sh->port_id_action_list = NULL;
505 if (sh->push_vlan_action_list) {
506 mlx5_list_destroy(sh->push_vlan_action_list);
507 sh->push_vlan_action_list = NULL;
509 if (sh->sample_action_list) {
510 mlx5_list_destroy(sh->sample_action_list);
511 sh->sample_action_list = NULL;
513 if (sh->dest_array_list) {
514 mlx5_list_destroy(sh->dest_array_list);
515 sh->dest_array_list = NULL;
521 * Destroy DR related data within private structure.
524 * Pointer to the private device data structure.
527 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
529 struct mlx5_dev_ctx_shared *sh = priv->sh;
531 MLX5_ASSERT(sh && sh->refcnt);
534 #ifdef HAVE_MLX5DV_DR
536 mlx5_glue->dr_destroy_domain(sh->rx_domain);
537 sh->rx_domain = NULL;
540 mlx5_glue->dr_destroy_domain(sh->tx_domain);
541 sh->tx_domain = NULL;
543 #ifdef HAVE_MLX5DV_DR_ESWITCH
544 if (sh->fdb_domain) {
545 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
546 sh->fdb_domain = NULL;
548 if (sh->dr_drop_action) {
549 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
550 sh->dr_drop_action = NULL;
553 if (sh->pop_vlan_action) {
554 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
555 sh->pop_vlan_action = NULL;
557 #endif /* HAVE_MLX5DV_DR */
558 if (sh->default_miss_action)
559 mlx5_glue->destroy_flow_action
560 (sh->default_miss_action);
561 if (sh->encaps_decaps) {
562 mlx5_hlist_destroy(sh->encaps_decaps);
563 sh->encaps_decaps = NULL;
565 if (sh->modify_cmds) {
566 mlx5_hlist_destroy(sh->modify_cmds);
567 sh->modify_cmds = NULL;
570 /* tags should be destroyed with flow before. */
571 mlx5_hlist_destroy(sh->tag_table);
572 sh->tag_table = NULL;
574 if (sh->tunnel_hub) {
575 mlx5_release_tunnel_hub(sh, priv->dev_port);
576 sh->tunnel_hub = NULL;
578 mlx5_free_table_hash_list(priv);
579 if (sh->port_id_action_list) {
580 mlx5_list_destroy(sh->port_id_action_list);
581 sh->port_id_action_list = NULL;
583 if (sh->push_vlan_action_list) {
584 mlx5_list_destroy(sh->push_vlan_action_list);
585 sh->push_vlan_action_list = NULL;
587 if (sh->sample_action_list) {
588 mlx5_list_destroy(sh->sample_action_list);
589 sh->sample_action_list = NULL;
591 if (sh->dest_array_list) {
592 mlx5_list_destroy(sh->dest_array_list);
593 sh->dest_array_list = NULL;
598 * Initialize shared data between primary and secondary process.
600 * A memzone is reserved by primary process and secondary processes attach to
604 * 0 on success, a negative errno value otherwise and rte_errno is set.
607 mlx5_init_shared_data(void)
609 const struct rte_memzone *mz;
612 rte_spinlock_lock(&mlx5_shared_data_lock);
613 if (mlx5_shared_data == NULL) {
614 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
615 /* Allocate shared memory. */
616 mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
617 sizeof(*mlx5_shared_data),
621 "Cannot allocate mlx5 shared data");
625 mlx5_shared_data = mz->addr;
626 memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
627 rte_spinlock_init(&mlx5_shared_data->lock);
629 /* Lookup allocated shared memory. */
630 mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
633 "Cannot attach mlx5 shared data");
637 mlx5_shared_data = mz->addr;
638 memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
642 rte_spinlock_unlock(&mlx5_shared_data_lock);
647 * PMD global initialization.
649 * Independent from individual device, this function initializes global
650 * per-PMD data structures distinguishing primary and secondary processes.
651 * Hence, each initialization is called once per a process.
654 * 0 on success, a negative errno value otherwise and rte_errno is set.
659 struct mlx5_shared_data *sd;
660 struct mlx5_local_data *ld = &mlx5_local_data;
663 if (mlx5_init_shared_data())
665 sd = mlx5_shared_data;
667 rte_spinlock_lock(&sd->lock);
668 switch (rte_eal_process_type()) {
669 case RTE_PROC_PRIMARY:
672 LIST_INIT(&sd->mem_event_cb_list);
673 rte_rwlock_init(&sd->mem_event_rwlock);
674 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
675 mlx5_mr_mem_event_cb, NULL);
676 ret = mlx5_mp_init_primary(MLX5_MP_NAME,
677 mlx5_mp_os_primary_handle);
680 sd->init_done = true;
682 case RTE_PROC_SECONDARY:
685 ret = mlx5_mp_init_secondary(MLX5_MP_NAME,
686 mlx5_mp_os_secondary_handle);
690 ld->init_done = true;
696 rte_spinlock_unlock(&sd->lock);
701 * Create the Tx queue DevX/Verbs object.
704 * Pointer to Ethernet device.
706 * Queue index in DPDK Tx queue array.
709 * 0 on success, a negative errno value otherwise and rte_errno is set.
712 mlx5_os_txq_obj_new(struct rte_eth_dev *dev, uint16_t idx)
714 struct mlx5_priv *priv = dev->data->dev_private;
715 struct mlx5_txq_data *txq_data = (*priv->txqs)[idx];
716 struct mlx5_txq_ctrl *txq_ctrl =
717 container_of(txq_data, struct mlx5_txq_ctrl, txq);
719 if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN)
720 return mlx5_txq_devx_obj_new(dev, idx);
721 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
722 if (!priv->config.dv_esw_en)
723 return mlx5_txq_devx_obj_new(dev, idx);
725 return mlx5_txq_ibv_obj_new(dev, idx);
729 * Release an Tx DevX/verbs queue object.
732 * DevX/Verbs Tx queue object.
735 mlx5_os_txq_obj_release(struct mlx5_txq_obj *txq_obj)
737 if (txq_obj->txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) {
738 mlx5_txq_devx_obj_release(txq_obj);
741 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
742 if (!txq_obj->txq_ctrl->priv->config.dv_esw_en) {
743 mlx5_txq_devx_obj_release(txq_obj);
747 mlx5_txq_ibv_obj_release(txq_obj);
751 * DV flow counter mode detect and config.
754 * Pointer to rte_eth_dev structure.
758 mlx5_flow_counter_mode_config(struct rte_eth_dev *dev __rte_unused)
760 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
761 struct mlx5_priv *priv = dev->data->dev_private;
762 struct mlx5_dev_ctx_shared *sh = priv->sh;
765 #ifndef HAVE_IBV_DEVX_ASYNC
769 if (!priv->config.devx || !priv->config.dv_flow_en ||
770 !priv->config.hca_attr.flow_counters_dump ||
771 !(priv->config.hca_attr.flow_counter_bulk_alloc_bitmap & 0x4) ||
772 (mlx5_flow_dv_discover_counter_offset_support(dev) == -ENOTSUP))
776 DRV_LOG(INFO, "Use fall-back DV counter management. Flow "
777 "counter dump:%d, bulk_alloc_bitmap:0x%hhx.",
778 priv->config.hca_attr.flow_counters_dump,
779 priv->config.hca_attr.flow_counter_bulk_alloc_bitmap);
780 /* Initialize fallback mode only on the port initializes sh. */
782 sh->cmng.counter_fallback = fallback;
783 else if (fallback != sh->cmng.counter_fallback)
784 DRV_LOG(WARNING, "Port %d in sh has different fallback mode "
785 "with others:%d.", PORT_ID(priv), fallback);
790 mlx5_queue_counter_id_prepare(struct rte_eth_dev *dev)
792 struct mlx5_priv *priv = dev->data->dev_private;
793 void *ctx = priv->sh->ctx;
795 priv->q_counters = mlx5_devx_cmd_queue_counter_alloc(ctx);
796 if (!priv->q_counters) {
797 struct ibv_cq *cq = mlx5_glue->create_cq(ctx, 1, NULL, NULL, 0);
800 DRV_LOG(DEBUG, "Port %d queue counter object cannot be created "
801 "by DevX - fall-back to use the kernel driver global "
802 "queue counter.", dev->data->port_id);
803 /* Create WQ by kernel and query its queue counter ID. */
805 wq = mlx5_glue->create_wq(ctx,
806 &(struct ibv_wq_init_attr){
807 .wq_type = IBV_WQT_RQ,
814 /* Counter is assigned only on RDY state. */
815 int ret = mlx5_glue->modify_wq(wq,
816 &(struct ibv_wq_attr){
817 .attr_mask = IBV_WQ_ATTR_STATE,
818 .wq_state = IBV_WQS_RDY,
822 mlx5_devx_cmd_wq_query(wq,
823 &priv->counter_set_id);
824 claim_zero(mlx5_glue->destroy_wq(wq));
826 claim_zero(mlx5_glue->destroy_cq(cq));
829 priv->counter_set_id = priv->q_counters->id;
831 if (priv->counter_set_id == 0)
832 DRV_LOG(INFO, "Part of the port %d statistics will not be "
833 "available.", dev->data->port_id);
837 * Check if representor spawn info match devargs.
840 * Verbs device parameters (name, port, switch_info) to spawn.
842 * Device devargs to probe.
848 mlx5_representor_match(struct mlx5_dev_spawn_data *spawn,
849 struct rte_eth_devargs *eth_da)
851 struct mlx5_switch_info *switch_info = &spawn->info;
854 uint16_t repr_id = mlx5_representor_id_encode(switch_info,
857 switch (eth_da->type) {
858 case RTE_ETH_REPRESENTOR_SF:
859 if (!(spawn->info.port_name == -1 &&
860 switch_info->name_type ==
861 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
862 switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFSF) {
867 case RTE_ETH_REPRESENTOR_VF:
868 /* Allows HPF representor index -1 as exception. */
869 if (!(spawn->info.port_name == -1 &&
870 switch_info->name_type ==
871 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
872 switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFVF) {
877 case RTE_ETH_REPRESENTOR_NONE:
882 DRV_LOG(ERR, "unsupported representor type");
885 /* Check representor ID: */
886 for (p = 0; p < eth_da->nb_ports; ++p) {
887 if (spawn->pf_bond < 0) {
888 /* For non-LAG mode, allow and ignore pf. */
889 switch_info->pf_num = eth_da->ports[p];
890 repr_id = mlx5_representor_id_encode(switch_info,
893 for (f = 0; f < eth_da->nb_representor_ports; ++f) {
894 id = MLX5_REPRESENTOR_ID
895 (eth_da->ports[p], eth_da->type,
896 eth_da->representor_ports[f]);
907 * Spawn an Ethernet device from Verbs information.
910 * Backing DPDK device.
912 * Verbs device parameters (name, port, switch_info) to spawn.
914 * Device configuration parameters.
919 * A valid Ethernet device object on success, NULL otherwise and rte_errno
920 * is set. The following errors are defined:
922 * EBUSY: device is not supposed to be spawned.
923 * EEXIST: device is already spawned
925 static struct rte_eth_dev *
926 mlx5_dev_spawn(struct rte_device *dpdk_dev,
927 struct mlx5_dev_spawn_data *spawn,
928 struct mlx5_dev_config *config,
929 struct rte_eth_devargs *eth_da)
931 const struct mlx5_switch_info *switch_info = &spawn->info;
932 struct mlx5_dev_ctx_shared *sh = NULL;
933 struct ibv_port_attr port_attr;
934 struct mlx5dv_context dv_attr = { .comp_mask = 0 };
935 struct rte_eth_dev *eth_dev = NULL;
936 struct mlx5_priv *priv = NULL;
938 unsigned int hw_padding = 0;
940 unsigned int tunnel_en = 0;
941 unsigned int mpls_en = 0;
942 unsigned int swp = 0;
943 unsigned int mprq = 0;
944 unsigned int mprq_min_stride_size_n = 0;
945 unsigned int mprq_max_stride_size_n = 0;
946 unsigned int mprq_min_stride_num_n = 0;
947 unsigned int mprq_max_stride_num_n = 0;
948 struct rte_ether_addr mac;
949 char name[RTE_ETH_NAME_MAX_LEN];
950 int own_domain_id = 0;
952 struct mlx5_port_info vport_info = { .query_flags = 0 };
955 /* Determine if this port representor is supposed to be spawned. */
956 if (switch_info->representor && dpdk_dev->devargs &&
957 !mlx5_representor_match(spawn, eth_da))
959 /* Build device name. */
960 if (spawn->pf_bond < 0) {
962 if (!switch_info->representor)
963 strlcpy(name, dpdk_dev->name, sizeof(name));
965 err = snprintf(name, sizeof(name), "%s_representor_%s%u",
967 switch_info->name_type ==
968 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
969 switch_info->port_name);
971 /* Bonding device. */
972 if (!switch_info->representor) {
973 err = snprintf(name, sizeof(name), "%s_%s",
975 mlx5_os_get_dev_device_name(spawn->phys_dev));
977 err = snprintf(name, sizeof(name), "%s_%s_representor_c%dpf%d%s%u",
979 mlx5_os_get_dev_device_name(spawn->phys_dev),
980 switch_info->ctrl_num,
982 switch_info->name_type ==
983 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
984 switch_info->port_name);
987 if (err >= (int)sizeof(name))
988 DRV_LOG(WARNING, "device name overflow %s", name);
989 /* check if the device is already spawned */
990 if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
994 DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
995 if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
996 struct mlx5_mp_id mp_id;
998 eth_dev = rte_eth_dev_attach_secondary(name);
999 if (eth_dev == NULL) {
1000 DRV_LOG(ERR, "can not attach rte ethdev");
1004 eth_dev->device = dpdk_dev;
1005 eth_dev->dev_ops = &mlx5_dev_sec_ops;
1006 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1007 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1008 err = mlx5_proc_priv_init(eth_dev);
1011 mp_id.port_id = eth_dev->data->port_id;
1012 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
1013 /* Receive command fd from primary process */
1014 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
1017 /* Remap UAR for Tx queues. */
1018 err = mlx5_tx_uar_init_secondary(eth_dev, err);
1022 * Ethdev pointer is still required as input since
1023 * the primary device is not accessible from the
1024 * secondary process.
1026 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
1027 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
1030 mlx5_dev_close(eth_dev);
1034 * Some parameters ("tx_db_nc" in particularly) are needed in
1035 * advance to create dv/verbs device context. We proceed the
1036 * devargs here to get ones, and later proceed devargs again
1037 * to override some hardware settings.
1039 err = mlx5_args(config, dpdk_dev->devargs);
1042 DRV_LOG(ERR, "failed to process device arguments: %s",
1043 strerror(rte_errno));
1046 if (config->dv_miss_info) {
1047 if (switch_info->master || switch_info->representor)
1048 config->dv_xmeta_en = MLX5_XMETA_MODE_META16;
1050 mlx5_malloc_mem_select(config->sys_mem_en);
1051 sh = mlx5_alloc_shared_dev_ctx(spawn, config);
1054 config->devx = sh->devx;
1055 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
1056 config->dest_tir = 1;
1058 #ifdef HAVE_IBV_MLX5_MOD_SWP
1059 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
1062 * Multi-packet send is supported by ConnectX-4 Lx PF as well
1063 * as all ConnectX-5 devices.
1065 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1066 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
1068 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1069 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
1071 mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
1072 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
1073 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
1074 DRV_LOG(DEBUG, "enhanced MPW is supported");
1075 mps = MLX5_MPW_ENHANCED;
1077 DRV_LOG(DEBUG, "MPW is supported");
1081 DRV_LOG(DEBUG, "MPW isn't supported");
1082 mps = MLX5_MPW_DISABLED;
1084 #ifdef HAVE_IBV_MLX5_MOD_SWP
1085 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
1086 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
1087 DRV_LOG(DEBUG, "SWP support: %u", swp);
1089 config->swp = !!swp;
1090 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1091 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
1092 struct mlx5dv_striding_rq_caps mprq_caps =
1093 dv_attr.striding_rq_caps;
1095 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
1096 mprq_caps.min_single_stride_log_num_of_bytes);
1097 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
1098 mprq_caps.max_single_stride_log_num_of_bytes);
1099 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
1100 mprq_caps.min_single_wqe_log_num_of_strides);
1101 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
1102 mprq_caps.max_single_wqe_log_num_of_strides);
1103 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
1104 mprq_caps.supported_qpts);
1105 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
1107 mprq_min_stride_size_n =
1108 mprq_caps.min_single_stride_log_num_of_bytes;
1109 mprq_max_stride_size_n =
1110 mprq_caps.max_single_stride_log_num_of_bytes;
1111 mprq_min_stride_num_n =
1112 mprq_caps.min_single_wqe_log_num_of_strides;
1113 mprq_max_stride_num_n =
1114 mprq_caps.max_single_wqe_log_num_of_strides;
1117 /* Rx CQE compression is enabled by default. */
1118 config->cqe_comp = 1;
1119 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1120 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
1121 tunnel_en = ((dv_attr.tunnel_offloads_caps &
1122 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
1123 (dv_attr.tunnel_offloads_caps &
1124 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
1125 (dv_attr.tunnel_offloads_caps &
1126 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
1128 DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
1129 tunnel_en ? "" : "not ");
1132 "tunnel offloading disabled due to old OFED/rdma-core version");
1134 config->tunnel_en = tunnel_en;
1135 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1136 mpls_en = ((dv_attr.tunnel_offloads_caps &
1137 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
1138 (dv_attr.tunnel_offloads_caps &
1139 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
1140 DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
1141 mpls_en ? "" : "not ");
1143 DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
1144 " old OFED/rdma-core version or firmware configuration");
1146 config->mpls_en = mpls_en;
1147 /* Check port status. */
1148 err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
1150 DRV_LOG(ERR, "port query failed: %s", strerror(err));
1153 if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
1154 DRV_LOG(ERR, "port is not configured in Ethernet mode");
1158 if (port_attr.state != IBV_PORT_ACTIVE)
1159 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
1160 mlx5_glue->port_state_str(port_attr.state),
1162 /* Allocate private eth device data. */
1163 priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
1165 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1167 DRV_LOG(ERR, "priv allocation failure");
1172 priv->dev_port = spawn->phys_port;
1173 priv->pci_dev = spawn->pci_dev;
1174 priv->mtu = RTE_ETHER_MTU;
1175 /* Some internal functions rely on Netlink sockets, open them now. */
1176 priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
1177 priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
1178 priv->representor = !!switch_info->representor;
1179 priv->master = !!switch_info->master;
1180 priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
1181 priv->vport_meta_tag = 0;
1182 priv->vport_meta_mask = 0;
1183 priv->pf_bond = spawn->pf_bond;
1185 * If we have E-Switch we should determine the vport attributes.
1186 * E-Switch may use either source vport field or reg_c[0] metadata
1187 * register to match on vport index. The engaged part of metadata
1188 * register is defined by mask.
1190 if (switch_info->representor || switch_info->master) {
1191 err = mlx5_glue->devx_port_query(sh->ctx,
1196 "can't query devx port %d on device %s",
1198 mlx5_os_get_dev_device_name(spawn->phys_dev));
1199 vport_info.query_flags = 0;
1202 if (vport_info.query_flags & MLX5_PORT_QUERY_REG_C0) {
1203 priv->vport_meta_tag = vport_info.vport_meta_tag;
1204 priv->vport_meta_mask = vport_info.vport_meta_mask;
1205 if (!priv->vport_meta_mask) {
1206 DRV_LOG(ERR, "vport zero mask for port %d"
1207 " on bonding device %s",
1209 mlx5_os_get_dev_device_name
1214 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
1215 DRV_LOG(ERR, "invalid vport tag for port %d"
1216 " on bonding device %s",
1218 mlx5_os_get_dev_device_name
1224 if (vport_info.query_flags & MLX5_PORT_QUERY_VPORT) {
1225 priv->vport_id = vport_info.vport_id;
1226 } else if (spawn->pf_bond >= 0 &&
1227 (switch_info->representor || switch_info->master)) {
1228 DRV_LOG(ERR, "can't deduce vport index for port %d"
1229 " on bonding device %s",
1231 mlx5_os_get_dev_device_name(spawn->phys_dev));
1236 * Suppose vport index in compatible way. Kernel/rdma_core
1237 * support single E-Switch per PF configurations only and
1238 * vport_id field contains the vport index for associated VF,
1239 * which is deduced from representor port name.
1240 * For example, let's have the IB device port 10, it has
1241 * attached network device eth0, which has port name attribute
1242 * pf0vf2, we can deduce the VF number as 2, and set vport index
1243 * as 3 (2+1). This assigning schema should be changed if the
1244 * multiple E-Switch instances per PF configurations or/and PCI
1245 * subfunctions are added.
1247 priv->vport_id = switch_info->representor ?
1248 switch_info->port_name + 1 : -1;
1250 priv->representor_id = mlx5_representor_id_encode(switch_info,
1253 * Look for sibling devices in order to reuse their switch domain
1254 * if any, otherwise allocate one.
1256 MLX5_ETH_FOREACH_DEV(port_id, NULL) {
1257 const struct mlx5_priv *opriv =
1258 rte_eth_devices[port_id].data->dev_private;
1261 opriv->sh != priv->sh ||
1263 RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
1265 priv->domain_id = opriv->domain_id;
1268 if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
1269 err = rte_eth_switch_domain_alloc(&priv->domain_id);
1272 DRV_LOG(ERR, "unable to allocate switch domain: %s",
1273 strerror(rte_errno));
1278 /* Override some values set by hardware configuration. */
1279 mlx5_args(config, dpdk_dev->devargs);
1280 err = mlx5_dev_check_sibling_config(priv, config);
1283 config->hw_csum = !!(sh->device_attr.device_cap_flags_ex &
1284 IBV_DEVICE_RAW_IP_CSUM);
1285 DRV_LOG(DEBUG, "checksum offloading is %ssupported",
1286 (config->hw_csum ? "" : "not "));
1287 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
1288 !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1289 DRV_LOG(DEBUG, "counters are not supported");
1291 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
1292 if (config->dv_flow_en) {
1293 DRV_LOG(WARNING, "DV flow is not supported");
1294 config->dv_flow_en = 0;
1297 if (spawn->max_port > UINT8_MAX) {
1298 /* Verbs can't support ports larger than 255 by design. */
1299 DRV_LOG(ERR, "can't support IB ports > UINT8_MAX");
1303 config->ind_table_max_size =
1304 sh->device_attr.max_rwq_indirection_table_size;
1306 * Remove this check once DPDK supports larger/variable
1307 * indirection tables.
1309 if (config->ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
1310 config->ind_table_max_size = ETH_RSS_RETA_SIZE_512;
1311 DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
1312 config->ind_table_max_size);
1313 config->hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
1314 IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
1315 DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
1316 (config->hw_vlan_strip ? "" : "not "));
1317 config->hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
1318 IBV_RAW_PACKET_CAP_SCATTER_FCS);
1319 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
1320 hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
1321 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
1322 hw_padding = !!(sh->device_attr.device_cap_flags_ex &
1323 IBV_DEVICE_PCI_WRITE_END_PADDING);
1325 if (config->hw_padding && !hw_padding) {
1326 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
1327 config->hw_padding = 0;
1328 } else if (config->hw_padding) {
1329 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
1331 config->tso = (sh->device_attr.max_tso > 0 &&
1332 (sh->device_attr.tso_supported_qpts &
1333 (1 << IBV_QPT_RAW_PACKET)));
1335 config->tso_max_payload_sz = sh->device_attr.max_tso;
1337 * MPW is disabled by default, while the Enhanced MPW is enabled
1340 if (config->mps == MLX5_ARG_UNSET)
1341 config->mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
1344 config->mps = config->mps ? mps : MLX5_MPW_DISABLED;
1345 DRV_LOG(INFO, "%sMPS is %s",
1346 config->mps == MLX5_MPW_ENHANCED ? "enhanced " :
1347 config->mps == MLX5_MPW ? "legacy " : "",
1348 config->mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
1350 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config->hca_attr);
1355 /* Check relax ordering support. */
1356 if (!haswell_broadwell_cpu) {
1357 sh->cmng.relaxed_ordering_write =
1358 config->hca_attr.relaxed_ordering_write;
1359 sh->cmng.relaxed_ordering_read =
1360 config->hca_attr.relaxed_ordering_read;
1362 sh->cmng.relaxed_ordering_read = 0;
1363 sh->cmng.relaxed_ordering_write = 0;
1365 sh->rq_ts_format = config->hca_attr.rq_ts_format;
1366 sh->sq_ts_format = config->hca_attr.sq_ts_format;
1367 sh->steering_format_version =
1368 config->hca_attr.steering_format_version;
1369 sh->qp_ts_format = config->hca_attr.qp_ts_format;
1370 /* Check for LRO support. */
1371 if (config->dest_tir && config->hca_attr.lro_cap &&
1372 config->dv_flow_en) {
1373 /* TBD check tunnel lro caps. */
1374 config->lro.supported = config->hca_attr.lro_cap;
1375 DRV_LOG(DEBUG, "Device supports LRO");
1377 * If LRO timeout is not configured by application,
1378 * use the minimal supported value.
1380 if (!config->lro.timeout)
1381 config->lro.timeout =
1382 config->hca_attr.lro_timer_supported_periods[0];
1383 DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
1384 config->lro.timeout);
1385 DRV_LOG(DEBUG, "LRO minimal size of TCP segment "
1386 "required for coalescing is %d bytes",
1387 config->hca_attr.lro_min_mss_size);
1389 #if defined(HAVE_MLX5DV_DR) && \
1390 (defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) || \
1391 defined(HAVE_MLX5_DR_CREATE_ACTION_ASO))
1392 if (config->hca_attr.qos.sup &&
1393 config->hca_attr.qos.flow_meter_old &&
1394 config->dv_flow_en) {
1395 uint8_t reg_c_mask =
1396 config->hca_attr.qos.flow_meter_reg_c_ids;
1398 * Meter needs two REG_C's for color match and pre-sfx
1399 * flow match. Here get the REG_C for color match.
1400 * REG_C_0 and REG_C_1 is reserved for metadata feature.
1403 if (__builtin_popcount(reg_c_mask) < 1) {
1405 DRV_LOG(WARNING, "No available register for"
1409 * The meter color register is used by the
1410 * flow-hit feature as well.
1411 * The flow-hit feature must use REG_C_3
1412 * Prefer REG_C_3 if it is available.
1414 if (reg_c_mask & (1 << (REG_C_3 - REG_C_0)))
1415 priv->mtr_color_reg = REG_C_3;
1417 priv->mtr_color_reg = ffs(reg_c_mask)
1420 priv->mtr_reg_share =
1421 config->hca_attr.qos.flow_meter;
1422 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
1423 priv->mtr_color_reg);
1426 if (config->hca_attr.qos.sup &&
1427 config->hca_attr.qos.flow_meter_aso_sup) {
1428 uint32_t log_obj_size =
1429 rte_log2_u32(MLX5_ASO_MTRS_PER_POOL >> 1);
1431 config->hca_attr.qos.log_meter_aso_granularity &&
1433 config->hca_attr.qos.log_meter_aso_max_alloc)
1434 sh->meter_aso_en = 1;
1437 err = mlx5_aso_flow_mtrs_mng_init(priv->sh);
1443 if (config->hca_attr.flow.tunnel_header_0_1)
1444 sh->tunnel_header_0_1 = 1;
1446 #ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO
1447 if (config->hca_attr.flow_hit_aso &&
1448 priv->mtr_color_reg == REG_C_3) {
1449 sh->flow_hit_aso_en = 1;
1450 err = mlx5_flow_aso_age_mng_init(sh);
1455 DRV_LOG(DEBUG, "Flow Hit ASO is supported.");
1457 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */
1458 #if defined(HAVE_MLX5_DR_CREATE_ACTION_ASO) && \
1459 defined(HAVE_MLX5_DR_ACTION_ASO_CT)
1460 if (config->hca_attr.ct_offload &&
1461 priv->mtr_color_reg == REG_C_3) {
1462 err = mlx5_flow_aso_ct_mng_init(sh);
1467 DRV_LOG(DEBUG, "CT ASO is supported.");
1470 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO && HAVE_MLX5_DR_ACTION_ASO_CT */
1471 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE)
1472 if (config->hca_attr.log_max_ft_sampler_num > 0 &&
1473 config->dv_flow_en) {
1474 priv->sampler_en = 1;
1475 DRV_LOG(DEBUG, "Sampler enabled!");
1477 priv->sampler_en = 0;
1478 if (!config->hca_attr.log_max_ft_sampler_num)
1480 "No available register for sampler.");
1482 DRV_LOG(DEBUG, "DV flow is not supported!");
1486 if (config->cqe_comp && RTE_CACHE_LINE_SIZE == 128 &&
1487 !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) {
1488 DRV_LOG(WARNING, "Rx CQE 128B compression is not supported");
1489 config->cqe_comp = 0;
1491 if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_FTAG_STRIDX &&
1492 (!config->devx || !config->hca_attr.mini_cqe_resp_flow_tag)) {
1493 DRV_LOG(WARNING, "Flow Tag CQE compression"
1494 " format isn't supported.");
1495 config->cqe_comp = 0;
1497 if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_L34H_STRIDX &&
1498 (!config->devx || !config->hca_attr.mini_cqe_resp_l3_l4_tag)) {
1499 DRV_LOG(WARNING, "L3/L4 Header CQE compression"
1500 " format isn't supported.");
1501 config->cqe_comp = 0;
1503 DRV_LOG(DEBUG, "Rx CQE compression is %ssupported",
1504 config->cqe_comp ? "" : "not ");
1505 if (config->tx_pp) {
1506 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
1507 config->hca_attr.dev_freq_khz);
1508 DRV_LOG(DEBUG, "Packet pacing is %ssupported",
1509 config->hca_attr.qos.packet_pacing ? "" : "not ");
1510 DRV_LOG(DEBUG, "Cross channel ops are %ssupported",
1511 config->hca_attr.cross_channel ? "" : "not ");
1512 DRV_LOG(DEBUG, "WQE index ignore is %ssupported",
1513 config->hca_attr.wqe_index_ignore ? "" : "not ");
1514 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported",
1515 config->hca_attr.non_wire_sq ? "" : "not ");
1516 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
1517 config->hca_attr.log_max_static_sq_wq ? "" : "not ",
1518 config->hca_attr.log_max_static_sq_wq);
1519 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported",
1520 config->hca_attr.qos.wqe_rate_pp ? "" : "not ");
1521 if (!config->devx) {
1522 DRV_LOG(ERR, "DevX is required for packet pacing");
1526 if (!config->hca_attr.qos.packet_pacing) {
1527 DRV_LOG(ERR, "Packet pacing is not supported");
1531 if (!config->hca_attr.cross_channel) {
1532 DRV_LOG(ERR, "Cross channel operations are"
1533 " required for packet pacing");
1537 if (!config->hca_attr.wqe_index_ignore) {
1538 DRV_LOG(ERR, "WQE index ignore feature is"
1539 " required for packet pacing");
1543 if (!config->hca_attr.non_wire_sq) {
1544 DRV_LOG(ERR, "Non-wire SQ feature is"
1545 " required for packet pacing");
1549 if (!config->hca_attr.log_max_static_sq_wq) {
1550 DRV_LOG(ERR, "Static WQE SQ feature is"
1551 " required for packet pacing");
1555 if (!config->hca_attr.qos.wqe_rate_pp) {
1556 DRV_LOG(ERR, "WQE rate mode is required"
1557 " for packet pacing");
1561 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1562 DRV_LOG(ERR, "DevX does not provide UAR offset,"
1563 " can't create queues for packet pacing");
1569 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
1571 err = config->hca_attr.access_register_user ?
1572 mlx5_devx_cmd_register_read
1573 (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0,
1574 reg, MLX5_ST_SZ_DW(register_mtutc)) : ENOTSUP;
1578 /* MTUTC register is read successfully. */
1579 ts_mode = MLX5_GET(register_mtutc, reg,
1581 if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME)
1582 config->rt_timestamp = 1;
1584 /* Kernel does not support register reading. */
1585 if (config->hca_attr.dev_freq_khz ==
1586 (NS_PER_S / MS_PER_S))
1587 config->rt_timestamp = 1;
1591 * If HW has bug working with tunnel packet decapsulation and
1592 * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip
1593 * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore.
1595 if (config->hca_attr.scatter_fcs_w_decap_disable && config->decap_en)
1596 config->hw_fcs_strip = 0;
1597 DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
1598 (config->hw_fcs_strip ? "" : "not "));
1599 if (config->mprq.enabled && mprq) {
1600 if (config->mprq.stride_num_n &&
1601 (config->mprq.stride_num_n > mprq_max_stride_num_n ||
1602 config->mprq.stride_num_n < mprq_min_stride_num_n)) {
1603 config->mprq.stride_num_n =
1604 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1605 mprq_min_stride_num_n),
1606 mprq_max_stride_num_n);
1608 "the number of strides"
1609 " for Multi-Packet RQ is out of range,"
1610 " setting default value (%u)",
1611 1 << config->mprq.stride_num_n);
1613 if (config->mprq.stride_size_n &&
1614 (config->mprq.stride_size_n > mprq_max_stride_size_n ||
1615 config->mprq.stride_size_n < mprq_min_stride_size_n)) {
1616 config->mprq.stride_size_n =
1617 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
1618 mprq_min_stride_size_n),
1619 mprq_max_stride_size_n);
1621 "the size of a stride"
1622 " for Multi-Packet RQ is out of range,"
1623 " setting default value (%u)",
1624 1 << config->mprq.stride_size_n);
1626 config->mprq.min_stride_size_n = mprq_min_stride_size_n;
1627 config->mprq.max_stride_size_n = mprq_max_stride_size_n;
1628 } else if (config->mprq.enabled && !mprq) {
1629 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1630 config->mprq.enabled = 0;
1632 if (config->max_dump_files_num == 0)
1633 config->max_dump_files_num = 128;
1634 eth_dev = rte_eth_dev_allocate(name);
1635 if (eth_dev == NULL) {
1636 DRV_LOG(ERR, "can not allocate rte ethdev");
1640 if (priv->representor) {
1641 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1642 eth_dev->data->representor_id = priv->representor_id;
1644 priv->mp_id.port_id = eth_dev->data->port_id;
1645 strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
1647 * Store associated network device interface index. This index
1648 * is permanent throughout the lifetime of device. So, we may store
1649 * the ifindex here and use the cached value further.
1651 MLX5_ASSERT(spawn->ifindex);
1652 priv->if_index = spawn->ifindex;
1653 eth_dev->data->dev_private = priv;
1654 priv->dev_data = eth_dev->data;
1655 eth_dev->data->mac_addrs = priv->mac;
1656 eth_dev->device = dpdk_dev;
1657 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1658 /* Configure the first MAC address by default. */
1659 if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1661 "port %u cannot get MAC address, is mlx5_en"
1662 " loaded? (errno: %s)",
1663 eth_dev->data->port_id, strerror(rte_errno));
1668 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1669 eth_dev->data->port_id,
1670 mac.addr_bytes[0], mac.addr_bytes[1],
1671 mac.addr_bytes[2], mac.addr_bytes[3],
1672 mac.addr_bytes[4], mac.addr_bytes[5]);
1673 #ifdef RTE_LIBRTE_MLX5_DEBUG
1675 char ifname[MLX5_NAMESIZE];
1677 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1678 DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1679 eth_dev->data->port_id, ifname);
1681 DRV_LOG(DEBUG, "port %u ifname is unknown",
1682 eth_dev->data->port_id);
1685 /* Get actual MTU if possible. */
1686 err = mlx5_get_mtu(eth_dev, &priv->mtu);
1691 DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1693 /* Initialize burst functions to prevent crashes before link-up. */
1694 eth_dev->rx_pkt_burst = removed_rx_burst;
1695 eth_dev->tx_pkt_burst = removed_tx_burst;
1696 eth_dev->dev_ops = &mlx5_dev_ops;
1697 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1698 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1699 eth_dev->rx_queue_count = mlx5_rx_queue_count;
1700 /* Register MAC address. */
1701 claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1702 if (config->vf && config->vf_nl_en)
1703 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1704 mlx5_ifindex(eth_dev),
1705 eth_dev->data->mac_addrs,
1706 MLX5_MAX_MAC_ADDRESSES);
1707 priv->ctrl_flows = 0;
1708 rte_spinlock_init(&priv->flow_list_lock);
1709 TAILQ_INIT(&priv->flow_meters);
1710 priv->mtr_profile_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_PTR);
1711 if (!priv->mtr_profile_tbl)
1713 /* Hint libmlx5 to use PMD allocator for data plane resources */
1714 mlx5_glue->dv_set_context_attr(sh->ctx,
1715 MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1716 (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
1717 .alloc = &mlx5_alloc_verbs_buf,
1718 .free = &mlx5_free_verbs_buf,
1721 /* Bring Ethernet device up. */
1722 DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1723 eth_dev->data->port_id);
1724 mlx5_set_link_up(eth_dev);
1726 * Even though the interrupt handler is not installed yet,
1727 * interrupts will still trigger on the async_fd from
1728 * Verbs context returned by ibv_open_device().
1730 mlx5_link_update(eth_dev, 0);
1731 #ifdef HAVE_MLX5DV_DR_ESWITCH
1732 if (!(config->hca_attr.eswitch_manager && config->dv_flow_en &&
1733 (switch_info->representor || switch_info->master)))
1734 config->dv_esw_en = 0;
1736 config->dv_esw_en = 0;
1738 /* Detect minimal data bytes to inline. */
1739 mlx5_set_min_inline(spawn, config);
1740 /* Store device configuration on private structure. */
1741 priv->config = *config;
1742 for (i = 0; i < MLX5_FLOW_TYPE_MAXI; i++) {
1743 icfg[i].release_mem_en = !!config->reclaim_mode;
1744 if (config->reclaim_mode)
1745 icfg[i].per_core_cache = 0;
1746 priv->flows[i] = mlx5_ipool_create(&icfg[i]);
1747 if (!priv->flows[i])
1750 /* Create context for virtual machine VLAN workaround. */
1751 priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1752 if (config->dv_flow_en) {
1753 err = mlx5_alloc_shared_dr(priv);
1757 if (config->devx && config->dv_flow_en && config->dest_tir) {
1758 priv->obj_ops = devx_obj_ops;
1759 priv->obj_ops.drop_action_create =
1760 ibv_obj_ops.drop_action_create;
1761 priv->obj_ops.drop_action_destroy =
1762 ibv_obj_ops.drop_action_destroy;
1763 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1764 priv->obj_ops.txq_obj_modify = ibv_obj_ops.txq_obj_modify;
1766 if (config->dv_esw_en)
1767 priv->obj_ops.txq_obj_modify =
1768 ibv_obj_ops.txq_obj_modify;
1770 /* Use specific wrappers for Tx object. */
1771 priv->obj_ops.txq_obj_new = mlx5_os_txq_obj_new;
1772 priv->obj_ops.txq_obj_release = mlx5_os_txq_obj_release;
1773 mlx5_queue_counter_id_prepare(eth_dev);
1774 priv->obj_ops.lb_dummy_queue_create =
1775 mlx5_rxq_ibv_obj_dummy_lb_create;
1776 priv->obj_ops.lb_dummy_queue_release =
1777 mlx5_rxq_ibv_obj_dummy_lb_release;
1779 priv->obj_ops = ibv_obj_ops;
1781 if (config->tx_pp &&
1782 (priv->config.dv_esw_en ||
1783 priv->obj_ops.txq_obj_new != mlx5_os_txq_obj_new)) {
1785 * HAVE_MLX5DV_DEVX_UAR_OFFSET is required to support
1786 * packet pacing and already checked above.
1787 * Hence, we should only make sure the SQs will be created
1788 * with DevX, not with Verbs.
1789 * Verbs allocates the SQ UAR on its own and it can't be shared
1790 * with Clock Queue UAR as required for Tx scheduling.
1792 DRV_LOG(ERR, "Verbs SQs, UAR can't be shared as required for packet pacing");
1796 priv->drop_queue.hrxq = mlx5_drop_action_create(eth_dev);
1797 if (!priv->drop_queue.hrxq)
1799 /* Supported Verbs flow priority number detection. */
1800 err = mlx5_flow_discover_priorities(eth_dev);
1805 priv->config.flow_prio = err;
1806 if (!priv->config.dv_esw_en &&
1807 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1808 DRV_LOG(WARNING, "metadata mode %u is not supported "
1809 "(no E-Switch)", priv->config.dv_xmeta_en);
1810 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1812 mlx5_set_metadata_mask(eth_dev);
1813 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1814 !priv->sh->dv_regc0_mask) {
1815 DRV_LOG(ERR, "metadata mode %u is not supported "
1816 "(no metadata reg_c[0] is available)",
1817 priv->config.dv_xmeta_en);
1821 priv->hrxqs = mlx5_list_create("hrxq", eth_dev, true,
1822 mlx5_hrxq_create_cb,
1824 mlx5_hrxq_remove_cb,
1826 mlx5_hrxq_clone_free_cb);
1829 rte_rwlock_init(&priv->ind_tbls_lock);
1830 /* Query availability of metadata reg_c's. */
1831 err = mlx5_flow_discover_mreg_c(eth_dev);
1836 if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1838 "port %u extensive metadata register is not supported",
1839 eth_dev->data->port_id);
1840 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1841 DRV_LOG(ERR, "metadata mode %u is not supported "
1842 "(no metadata registers available)",
1843 priv->config.dv_xmeta_en);
1848 if (priv->config.dv_flow_en &&
1849 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1850 mlx5_flow_ext_mreg_supported(eth_dev) &&
1851 priv->sh->dv_regc0_mask) {
1852 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1853 MLX5_FLOW_MREG_HTABLE_SZ,
1854 false, true, eth_dev,
1855 flow_dv_mreg_create_cb,
1856 flow_dv_mreg_match_cb,
1857 flow_dv_mreg_remove_cb,
1858 flow_dv_mreg_clone_cb,
1859 flow_dv_mreg_clone_free_cb);
1860 if (!priv->mreg_cp_tbl) {
1865 rte_spinlock_init(&priv->shared_act_sl);
1866 mlx5_flow_counter_mode_config(eth_dev);
1867 if (priv->config.dv_flow_en)
1868 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
1872 if (priv->mreg_cp_tbl)
1873 mlx5_hlist_destroy(priv->mreg_cp_tbl);
1875 mlx5_os_free_shared_dr(priv);
1876 if (priv->nl_socket_route >= 0)
1877 close(priv->nl_socket_route);
1878 if (priv->nl_socket_rdma >= 0)
1879 close(priv->nl_socket_rdma);
1880 if (priv->vmwa_context)
1881 mlx5_vlan_vmwa_exit(priv->vmwa_context);
1882 if (eth_dev && priv->drop_queue.hrxq)
1883 mlx5_drop_action_destroy(eth_dev);
1884 if (priv->mtr_profile_tbl)
1885 mlx5_l3t_destroy(priv->mtr_profile_tbl);
1887 claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1889 mlx5_list_destroy(priv->hrxqs);
1891 if (eth_dev != NULL)
1892 eth_dev->data->dev_private = NULL;
1894 if (eth_dev != NULL) {
1895 /* mac_addrs must not be freed alone because part of
1898 eth_dev->data->mac_addrs = NULL;
1899 rte_eth_dev_release_port(eth_dev);
1902 mlx5_free_shared_dev_ctx(sh);
1903 MLX5_ASSERT(err > 0);
1909 * Comparison callback to sort device data.
1911 * This is meant to be used with qsort().
1914 * Pointer to pointer to first data object.
1916 * Pointer to pointer to second data object.
1919 * 0 if both objects are equal, less than 0 if the first argument is less
1920 * than the second, greater than 0 otherwise.
1923 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1925 const struct mlx5_switch_info *si_a =
1926 &((const struct mlx5_dev_spawn_data *)a)->info;
1927 const struct mlx5_switch_info *si_b =
1928 &((const struct mlx5_dev_spawn_data *)b)->info;
1931 /* Master device first. */
1932 ret = si_b->master - si_a->master;
1935 /* Then representor devices. */
1936 ret = si_b->representor - si_a->representor;
1939 /* Unidentified devices come last in no specific order. */
1940 if (!si_a->representor)
1942 /* Order representors by name. */
1943 return si_a->port_name - si_b->port_name;
1947 * Match PCI information for possible slaves of bonding device.
1949 * @param[in] ibv_dev
1950 * Pointer to Infiniband device structure.
1951 * @param[in] pci_dev
1952 * Pointer to primary PCI address structure to match.
1953 * @param[in] nl_rdma
1954 * Netlink RDMA group socket handle.
1956 * Rerepsentor owner PF index.
1957 * @param[out] bond_info
1958 * Pointer to bonding information.
1961 * negative value if no bonding device found, otherwise
1962 * positive index of slave PF in bonding.
1965 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
1966 const struct rte_pci_addr *pci_dev,
1967 int nl_rdma, uint16_t owner,
1968 struct mlx5_bond_info *bond_info)
1970 char ifname[IF_NAMESIZE + 1];
1971 unsigned int ifindex;
1973 FILE *bond_file = NULL, *file;
1978 * Try to get master device name. If something goes
1979 * wrong suppose the lack of kernel support and no
1982 memset(bond_info, 0, sizeof(*bond_info));
1985 if (!strstr(ibv_dev->name, "bond"))
1987 np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
1991 * The Master device might not be on the predefined
1992 * port (not on port index 1, it is not garanted),
1993 * we have to scan all Infiniband device port and
1996 for (i = 1; i <= np; ++i) {
1997 /* Check whether Infiniband port is populated. */
1998 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
2001 if (!if_indextoname(ifindex, ifname))
2003 /* Try to read bonding slave names from sysfs. */
2005 "/sys/class/net/%s/master/bonding/slaves", ifname);
2006 bond_file = fopen(slaves, "r");
2012 /* Use safe format to check maximal buffer length. */
2013 MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
2014 while (fscanf(bond_file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
2015 char tmp_str[IF_NAMESIZE + 32];
2016 struct rte_pci_addr pci_addr;
2017 struct mlx5_switch_info info;
2019 /* Process slave interface names in the loop. */
2020 snprintf(tmp_str, sizeof(tmp_str),
2021 "/sys/class/net/%s", ifname);
2022 if (mlx5_get_pci_addr(tmp_str, &pci_addr)) {
2023 DRV_LOG(WARNING, "can not get PCI address"
2024 " for netdev \"%s\"", ifname);
2027 /* Slave interface PCI address match found. */
2028 snprintf(tmp_str, sizeof(tmp_str),
2029 "/sys/class/net/%s/phys_port_name", ifname);
2030 file = fopen(tmp_str, "rb");
2033 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
2034 if (fscanf(file, "%32s", tmp_str) == 1)
2035 mlx5_translate_port_name(tmp_str, &info);
2037 /* Only process PF ports. */
2038 if (info.name_type != MLX5_PHYS_PORT_NAME_TYPE_LEGACY &&
2039 info.name_type != MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
2041 /* Check max bonding member. */
2042 if (info.port_name >= MLX5_BOND_MAX_PORTS) {
2043 DRV_LOG(WARNING, "bonding index out of range, "
2044 "please increase MLX5_BOND_MAX_PORTS: %s",
2048 /* Match PCI address, allows BDF0+pfx or BDFx+pfx. */
2049 if (pci_dev->domain == pci_addr.domain &&
2050 pci_dev->bus == pci_addr.bus &&
2051 pci_dev->devid == pci_addr.devid &&
2052 ((pci_dev->function == 0 &&
2053 pci_dev->function + owner == pci_addr.function) ||
2054 (pci_dev->function == owner &&
2055 pci_addr.function == owner)))
2056 pf = info.port_name;
2058 snprintf(tmp_str, sizeof(tmp_str),
2059 "/sys/class/net/%s/ifindex", ifname);
2060 file = fopen(tmp_str, "rb");
2063 ret = fscanf(file, "%u", &ifindex);
2067 /* Save bonding info. */
2068 strncpy(bond_info->ports[info.port_name].ifname, ifname,
2069 sizeof(bond_info->ports[0].ifname));
2070 bond_info->ports[info.port_name].pci_addr = pci_addr;
2071 bond_info->ports[info.port_name].ifindex = ifindex;
2072 bond_info->n_port++;
2075 /* Get bond interface info */
2076 ret = mlx5_sysfs_bond_info(ifindex, &bond_info->ifindex,
2079 DRV_LOG(ERR, "unable to get bond info: %s",
2080 strerror(rte_errno));
2082 DRV_LOG(INFO, "PF device %u, bond device %u(%s)",
2083 ifindex, bond_info->ifindex, bond_info->ifname);
2089 mlx5_os_config_default(struct mlx5_dev_config *config)
2091 memset(config, 0, sizeof(*config));
2092 config->mps = MLX5_ARG_UNSET;
2093 config->dbnc = MLX5_ARG_UNSET;
2094 config->rx_vec_en = 1;
2095 config->txq_inline_max = MLX5_ARG_UNSET;
2096 config->txq_inline_min = MLX5_ARG_UNSET;
2097 config->txq_inline_mpw = MLX5_ARG_UNSET;
2098 config->txqs_inline = MLX5_ARG_UNSET;
2099 config->vf_nl_en = 1;
2100 config->mr_ext_memseg_en = 1;
2101 config->mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN;
2102 config->mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS;
2103 config->dv_esw_en = 1;
2104 config->dv_flow_en = 1;
2105 config->decap_en = 1;
2106 config->log_hp_size = MLX5_ARG_UNSET;
2110 * Register a PCI device within bonding.
2112 * This function spawns Ethernet devices out of a given PCI device and
2113 * bonding owner PF index.
2115 * @param[in] pci_dev
2116 * PCI device information.
2117 * @param[in] req_eth_da
2118 * Requested ethdev device argument.
2119 * @param[in] owner_id
2120 * Requested owner PF port ID within bonding device, default to 0.
2123 * 0 on success, a negative errno value otherwise and rte_errno is set.
2126 mlx5_os_pci_probe_pf(struct rte_pci_device *pci_dev,
2127 struct rte_eth_devargs *req_eth_da,
2130 struct ibv_device **ibv_list;
2132 * Number of found IB Devices matching with requested PCI BDF.
2133 * nd != 1 means there are multiple IB devices over the same
2134 * PCI device and we have representors and master.
2136 unsigned int nd = 0;
2138 * Number of found IB device Ports. nd = 1 and np = 1..n means
2139 * we have the single multiport IB device, and there may be
2140 * representors attached to some of found ports.
2142 unsigned int np = 0;
2144 * Number of DPDK ethernet devices to Spawn - either over
2145 * multiple IB devices or multiple ports of single IB device.
2146 * Actually this is the number of iterations to spawn.
2148 unsigned int ns = 0;
2151 * < 0 - no bonding device (single one)
2152 * >= 0 - bonding device (value is slave PF index)
2155 struct mlx5_dev_spawn_data *list = NULL;
2156 struct mlx5_dev_config dev_config;
2157 unsigned int dev_config_vf;
2158 struct rte_eth_devargs eth_da = *req_eth_da;
2159 struct rte_pci_addr owner_pci = pci_dev->addr; /* Owner PF. */
2160 struct mlx5_bond_info bond_info;
2164 ibv_list = mlx5_glue->get_device_list(&ret);
2166 rte_errno = errno ? errno : ENOSYS;
2167 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
2171 * First scan the list of all Infiniband devices to find
2172 * matching ones, gathering into the list.
2174 struct ibv_device *ibv_match[ret + 1];
2175 int nl_route = mlx5_nl_init(NETLINK_ROUTE);
2176 int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
2180 struct rte_pci_addr pci_addr;
2182 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
2183 bd = mlx5_device_bond_pci_match
2184 (ibv_list[ret], &owner_pci, nl_rdma, owner_id,
2188 * Bonding device detected. Only one match is allowed,
2189 * the bonding is supported over multi-port IB device,
2190 * there should be no matches on representor PCI
2191 * functions or non VF LAG bonding devices with
2192 * specified address.
2196 "multiple PCI match on bonding device"
2197 "\"%s\" found", ibv_list[ret]->name);
2202 /* Amend owner pci address if owner PF ID specified. */
2203 if (eth_da.nb_representor_ports)
2204 owner_pci.function += owner_id;
2205 DRV_LOG(INFO, "PCI information matches for"
2206 " slave %d bonding device \"%s\"",
2207 bd, ibv_list[ret]->name);
2208 ibv_match[nd++] = ibv_list[ret];
2211 /* Bonding device not found. */
2212 if (mlx5_get_pci_addr(ibv_list[ret]->ibdev_path,
2215 if (owner_pci.domain != pci_addr.domain ||
2216 owner_pci.bus != pci_addr.bus ||
2217 owner_pci.devid != pci_addr.devid ||
2218 owner_pci.function != pci_addr.function)
2220 DRV_LOG(INFO, "PCI information matches for device \"%s\"",
2221 ibv_list[ret]->name);
2222 ibv_match[nd++] = ibv_list[ret];
2225 ibv_match[nd] = NULL;
2227 /* No device matches, just complain and bail out. */
2229 "no Verbs device matches PCI device " PCI_PRI_FMT ","
2230 " are kernel drivers loaded?",
2231 owner_pci.domain, owner_pci.bus,
2232 owner_pci.devid, owner_pci.function);
2239 * Found single matching device may have multiple ports.
2240 * Each port may be representor, we have to check the port
2241 * number and check the representors existence.
2244 np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
2246 DRV_LOG(WARNING, "can not get IB device \"%s\""
2247 " ports number", ibv_match[0]->name);
2248 if (bd >= 0 && !np) {
2249 DRV_LOG(ERR, "can not get ports"
2250 " for bonding device");
2257 * Now we can determine the maximal
2258 * amount of devices to be spawned.
2260 list = mlx5_malloc(MLX5_MEM_ZERO,
2261 sizeof(struct mlx5_dev_spawn_data) *
2263 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
2265 DRV_LOG(ERR, "spawn data array allocation failure");
2270 if (bd >= 0 || np > 1) {
2272 * Single IB device with multiple ports found,
2273 * it may be E-Switch master device and representors.
2274 * We have to perform identification through the ports.
2276 MLX5_ASSERT(nl_rdma >= 0);
2277 MLX5_ASSERT(ns == 0);
2278 MLX5_ASSERT(nd == 1);
2280 for (i = 1; i <= np; ++i) {
2281 list[ns].bond_info = &bond_info;
2282 list[ns].max_port = np;
2283 list[ns].phys_port = i;
2284 list[ns].phys_dev = ibv_match[0];
2285 list[ns].eth_dev = NULL;
2286 list[ns].pci_dev = pci_dev;
2287 list[ns].pf_bond = bd;
2288 list[ns].ifindex = mlx5_nl_ifindex
2290 mlx5_os_get_dev_device_name
2291 (list[ns].phys_dev), i);
2292 if (!list[ns].ifindex) {
2294 * No network interface index found for the
2295 * specified port, it means there is no
2296 * representor on this port. It's OK,
2297 * there can be disabled ports, for example
2298 * if sriov_numvfs < sriov_totalvfs.
2304 ret = mlx5_nl_switch_info
2308 if (ret || (!list[ns].info.representor &&
2309 !list[ns].info.master)) {
2311 * We failed to recognize representors with
2312 * Netlink, let's try to perform the task
2315 ret = mlx5_sysfs_switch_info
2319 if (!ret && bd >= 0) {
2320 switch (list[ns].info.name_type) {
2321 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
2324 * Force standalone bonding
2325 * device for ROCE LAG
2328 list[ns].info.master = 0;
2329 list[ns].info.representor = 0;
2331 if (list[ns].info.port_name == bd)
2334 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
2336 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
2338 case MLX5_PHYS_PORT_NAME_TYPE_PFSF:
2339 if (list[ns].info.pf_num == bd)
2347 if (!ret && (list[ns].info.representor ^
2348 list[ns].info.master))
2353 "unable to recognize master/representors"
2354 " on the IB device with multiple ports");
2361 * The existence of several matching entries (nd > 1) means
2362 * port representors have been instantiated. No existing Verbs
2363 * call nor sysfs entries can tell them apart, this can only
2364 * be done through Netlink calls assuming kernel drivers are
2365 * recent enough to support them.
2367 * In the event of identification failure through Netlink,
2368 * try again through sysfs, then:
2370 * 1. A single IB device matches (nd == 1) with single
2371 * port (np=0/1) and is not a representor, assume
2372 * no switch support.
2374 * 2. Otherwise no safe assumptions can be made;
2375 * complain louder and bail out.
2377 for (i = 0; i != nd; ++i) {
2378 memset(&list[ns].info, 0, sizeof(list[ns].info));
2379 list[ns].bond_info = NULL;
2380 list[ns].max_port = 1;
2381 list[ns].phys_port = 1;
2382 list[ns].phys_dev = ibv_match[i];
2383 list[ns].eth_dev = NULL;
2384 list[ns].pci_dev = pci_dev;
2385 list[ns].pf_bond = -1;
2386 list[ns].ifindex = 0;
2388 list[ns].ifindex = mlx5_nl_ifindex
2390 mlx5_os_get_dev_device_name
2391 (list[ns].phys_dev), 1);
2392 if (!list[ns].ifindex) {
2393 char ifname[IF_NAMESIZE];
2396 * Netlink failed, it may happen with old
2397 * ib_core kernel driver (before 4.16).
2398 * We can assume there is old driver because
2399 * here we are processing single ports IB
2400 * devices. Let's try sysfs to retrieve
2401 * the ifindex. The method works for
2402 * master device only.
2406 * Multiple devices found, assume
2407 * representors, can not distinguish
2408 * master/representor and retrieve
2409 * ifindex via sysfs.
2413 ret = mlx5_get_ifname_sysfs
2414 (ibv_match[i]->ibdev_path, ifname);
2417 if_nametoindex(ifname);
2418 if (!list[ns].ifindex) {
2420 * No network interface index found
2421 * for the specified device, it means
2422 * there it is neither representor
2430 ret = mlx5_nl_switch_info
2434 if (ret || (!list[ns].info.representor &&
2435 !list[ns].info.master)) {
2437 * We failed to recognize representors with
2438 * Netlink, let's try to perform the task
2441 ret = mlx5_sysfs_switch_info
2445 if (!ret && (list[ns].info.representor ^
2446 list[ns].info.master)) {
2448 } else if ((nd == 1) &&
2449 !list[ns].info.representor &&
2450 !list[ns].info.master) {
2452 * Single IB device with
2453 * one physical port and
2454 * attached network device.
2455 * May be SRIOV is not enabled
2456 * or there is no representors.
2458 DRV_LOG(INFO, "no E-Switch support detected");
2465 "unable to recognize master/representors"
2466 " on the multiple IB devices");
2472 * New kernels may add the switch_id attribute for the case
2473 * there is no E-Switch and we wrongly recognized the
2474 * only device as master. Override this if there is the
2475 * single device with single port and new device name
2479 list[0].info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) {
2480 list[0].info.master = 0;
2481 list[0].info.representor = 0;
2486 * Sort list to probe devices in natural order for users convenience
2487 * (i.e. master first, then representors from lowest to highest ID).
2489 qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
2490 /* Device specific configuration. */
2491 switch (pci_dev->id.device_id) {
2492 case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
2493 case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
2494 case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
2495 case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
2496 case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
2497 case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
2498 case PCI_DEVICE_ID_MELLANOX_CONNECTXVF:
2505 if (eth_da.type != RTE_ETH_REPRESENTOR_NONE) {
2506 /* Set devargs default values. */
2507 if (eth_da.nb_mh_controllers == 0) {
2508 eth_da.nb_mh_controllers = 1;
2509 eth_da.mh_controllers[0] = 0;
2511 if (eth_da.nb_ports == 0 && ns > 0) {
2512 if (list[0].pf_bond >= 0 && list[0].info.representor)
2513 DRV_LOG(WARNING, "Representor on Bonding device should use pf#vf# syntax: %s",
2514 pci_dev->device.devargs->args);
2515 eth_da.nb_ports = 1;
2516 eth_da.ports[0] = list[0].info.pf_num;
2518 if (eth_da.nb_representor_ports == 0) {
2519 eth_da.nb_representor_ports = 1;
2520 eth_da.representor_ports[0] = 0;
2523 for (i = 0; i != ns; ++i) {
2526 /* Default configuration. */
2527 mlx5_os_config_default(&dev_config);
2528 dev_config.vf = dev_config_vf;
2529 dev_config.allow_duplicate_pattern = 1;
2530 list[i].numa_node = pci_dev->device.numa_node;
2531 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
2535 if (!list[i].eth_dev) {
2536 if (rte_errno != EBUSY && rte_errno != EEXIST)
2538 /* Device is disabled or already spawned. Ignore it. */
2541 restore = list[i].eth_dev->data->dev_flags;
2542 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
2544 * Each representor has a dedicated interrupts vector.
2545 * rte_eth_copy_pci_info() assigns PF interrupts handle to
2546 * representor eth_dev object because representor and PF
2547 * share the same PCI address.
2548 * Override representor device with a dedicated
2549 * interrupts handle here.
2550 * Representor interrupts handle is released in mlx5_dev_stop().
2552 if (list[i].info.representor) {
2553 struct rte_intr_handle *intr_handle;
2554 intr_handle = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO,
2555 sizeof(*intr_handle), 0,
2559 "port %u failed to allocate memory for interrupt handler "
2560 "Rx interrupts will not be supported",
2566 list[i].eth_dev->intr_handle = intr_handle;
2568 /* Restore non-PCI flags cleared by the above call. */
2569 list[i].eth_dev->data->dev_flags |= restore;
2570 rte_eth_dev_probing_finish(list[i].eth_dev);
2574 "probe of PCI device " PCI_PRI_FMT " aborted after"
2575 " encountering an error: %s",
2576 owner_pci.domain, owner_pci.bus,
2577 owner_pci.devid, owner_pci.function,
2578 strerror(rte_errno));
2582 if (!list[i].eth_dev)
2584 mlx5_dev_close(list[i].eth_dev);
2585 /* mac_addrs must not be freed because in dev_private */
2586 list[i].eth_dev->data->mac_addrs = NULL;
2587 claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
2589 /* Restore original error. */
2596 * Do the routine cleanup:
2597 * - close opened Netlink sockets
2598 * - free allocated spawn data array
2599 * - free the Infiniband device list
2607 MLX5_ASSERT(ibv_list);
2608 mlx5_glue->free_device_list(ibv_list);
2613 mlx5_os_parse_eth_devargs(struct rte_device *dev,
2614 struct rte_eth_devargs *eth_da)
2618 if (dev->devargs == NULL)
2620 memset(eth_da, 0, sizeof(*eth_da));
2621 /* Parse representor information first from class argument. */
2622 if (dev->devargs->cls_str)
2623 ret = rte_eth_devargs_parse(dev->devargs->cls_str, eth_da);
2625 DRV_LOG(ERR, "failed to parse device arguments: %s",
2626 dev->devargs->cls_str);
2629 if (eth_da->type == RTE_ETH_REPRESENTOR_NONE) {
2630 /* Parse legacy device argument */
2631 ret = rte_eth_devargs_parse(dev->devargs->args, eth_da);
2633 DRV_LOG(ERR, "failed to parse device arguments: %s",
2634 dev->devargs->args);
2642 * Callback to register a PCI device.
2644 * This function spawns Ethernet devices out of a given PCI device.
2646 * @param[in] pci_dev
2647 * PCI device information.
2650 * 0 on success, a negative errno value otherwise and rte_errno is set.
2653 mlx5_os_pci_probe(struct rte_pci_device *pci_dev)
2655 struct rte_eth_devargs eth_da = { .nb_ports = 0 };
2659 ret = mlx5_os_parse_eth_devargs(&pci_dev->device, ð_da);
2663 if (eth_da.nb_ports > 0) {
2664 /* Iterate all port if devargs pf is range: "pf[0-1]vf[...]". */
2665 for (p = 0; p < eth_da.nb_ports; p++)
2666 ret = mlx5_os_pci_probe_pf(pci_dev, ð_da,
2669 ret = mlx5_os_pci_probe_pf(pci_dev, ð_da, 0);
2674 /* Probe a single SF device on auxiliary bus, no representor support. */
2676 mlx5_os_auxiliary_probe(struct rte_device *dev)
2678 struct rte_eth_devargs eth_da = { .nb_ports = 0 };
2679 struct mlx5_dev_config config;
2680 struct mlx5_dev_spawn_data spawn = { .pf_bond = -1 };
2681 struct rte_auxiliary_device *adev = RTE_DEV_TO_AUXILIARY(dev);
2682 struct rte_eth_dev *eth_dev;
2685 /* Parse ethdev devargs. */
2686 ret = mlx5_os_parse_eth_devargs(dev, ð_da);
2689 /* Set default config data. */
2690 mlx5_os_config_default(&config);
2692 /* Init spawn data. */
2694 spawn.phys_port = 1;
2695 spawn.phys_dev = mlx5_os_get_ibv_dev(dev);
2696 if (spawn.phys_dev == NULL)
2698 ret = mlx5_auxiliary_get_ifindex(dev->name);
2700 DRV_LOG(ERR, "failed to get ethdev ifindex: %s", dev->name);
2703 spawn.ifindex = ret;
2704 spawn.numa_node = dev->numa_node;
2706 eth_dev = mlx5_dev_spawn(dev, &spawn, &config, ð_da);
2707 if (eth_dev == NULL)
2710 eth_dev->intr_handle = &adev->intr_handle;
2711 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
2712 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
2713 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_RMV;
2714 eth_dev->data->numa_node = dev->numa_node;
2716 rte_eth_dev_probing_finish(eth_dev);
2721 * Net class driver callback to probe a device.
2723 * This function probe PCI bus device(s) or a single SF on auxiliary bus.
2726 * Pointer to the generic device.
2729 * 0 on success, the function cannot fail.
2732 mlx5_os_net_probe(struct rte_device *dev)
2736 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
2737 mlx5_pmd_socket_init();
2738 ret = mlx5_init_once();
2740 DRV_LOG(ERR, "unable to init PMD global data: %s",
2741 strerror(rte_errno));
2744 if (mlx5_dev_is_pci(dev))
2745 return mlx5_os_pci_probe(RTE_DEV_TO_PCI(dev));
2747 return mlx5_os_auxiliary_probe(dev);
2751 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
2756 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2757 /* Get environment variable to store. */
2758 env = getenv(MLX5_SHUT_UP_BF);
2759 value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
2760 if (config->dbnc == MLX5_ARG_UNSET)
2761 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
2763 setenv(MLX5_SHUT_UP_BF,
2764 config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
2769 mlx5_restore_doorbell_mapping_env(int value)
2771 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2772 /* Restore the original environment variable state. */
2773 if (value == MLX5_ARG_UNSET)
2774 unsetenv(MLX5_SHUT_UP_BF);
2776 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
2780 * Extract pdn of PD object using DV API.
2783 * Pointer to the verbs PD object.
2785 * Pointer to the PD object number variable.
2788 * 0 on success, error value otherwise.
2791 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
2793 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
2794 struct mlx5dv_obj obj;
2795 struct mlx5dv_pd pd_info;
2799 obj.pd.out = &pd_info;
2800 ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
2802 DRV_LOG(DEBUG, "Fail to get PD object info");
2811 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
2815 * Function API to open IB device.
2817 * This function calls the Linux glue APIs to open a device.
2820 * Pointer to the IB device attributes (name, port, etc).
2821 * @param[out] config
2822 * Pointer to device configuration structure.
2824 * Pointer to shared context structure.
2827 * 0 on success, a positive error value otherwise.
2830 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
2831 const struct mlx5_dev_config *config,
2832 struct mlx5_dev_ctx_shared *sh)
2837 pthread_mutex_init(&sh->txpp.mutex, NULL);
2839 * Configure environment variable "MLX5_BF_SHUT_UP"
2840 * before the device creation. The rdma_core library
2841 * checks the variable at device creation and
2842 * stores the result internally.
2844 dbmap_env = mlx5_config_doorbell_mapping_env(config);
2845 /* Try to open IB device with DV first, then usual Verbs. */
2847 sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
2850 DRV_LOG(DEBUG, "DevX is supported");
2851 /* The device is created, no need for environment. */
2852 mlx5_restore_doorbell_mapping_env(dbmap_env);
2854 /* The environment variable is still configured. */
2855 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
2856 err = errno ? errno : ENODEV;
2858 * The environment variable is not needed anymore,
2859 * all device creation attempts are completed.
2861 mlx5_restore_doorbell_mapping_env(dbmap_env);
2864 DRV_LOG(DEBUG, "DevX is NOT supported");
2867 if (!err && sh->ctx) {
2868 /* Hint libmlx5 to use PMD allocator for data plane resources */
2869 mlx5_glue->dv_set_context_attr(sh->ctx,
2870 MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
2871 (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
2872 .alloc = &mlx5_alloc_verbs_buf,
2873 .free = &mlx5_free_verbs_buf,
2881 * Install shared asynchronous device events handler.
2882 * This function is implemented to support event sharing
2883 * between multiple ports of single IB device.
2886 * Pointer to mlx5_dev_ctx_shared object.
2889 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
2894 sh->intr_handle.fd = -1;
2895 flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
2896 ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
2897 F_SETFL, flags | O_NONBLOCK);
2899 DRV_LOG(INFO, "failed to change file descriptor async event"
2902 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
2903 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
2904 if (rte_intr_callback_register(&sh->intr_handle,
2905 mlx5_dev_interrupt_handler, sh)) {
2906 DRV_LOG(INFO, "Fail to install the shared interrupt.");
2907 sh->intr_handle.fd = -1;
2911 #ifdef HAVE_IBV_DEVX_ASYNC
2912 sh->intr_handle_devx.fd = -1;
2914 (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
2915 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2917 DRV_LOG(INFO, "failed to allocate devx_comp.");
2920 flags = fcntl(devx_comp->fd, F_GETFL);
2921 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2923 DRV_LOG(INFO, "failed to change file descriptor"
2927 sh->intr_handle_devx.fd = devx_comp->fd;
2928 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
2929 if (rte_intr_callback_register(&sh->intr_handle_devx,
2930 mlx5_dev_interrupt_handler_devx, sh)) {
2931 DRV_LOG(INFO, "Fail to install the devx shared"
2933 sh->intr_handle_devx.fd = -1;
2935 #endif /* HAVE_IBV_DEVX_ASYNC */
2940 * Uninstall shared asynchronous device events handler.
2941 * This function is implemented to support event sharing
2942 * between multiple ports of single IB device.
2945 * Pointer to mlx5_dev_ctx_shared object.
2948 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
2950 if (sh->intr_handle.fd >= 0)
2951 mlx5_intr_callback_unregister(&sh->intr_handle,
2952 mlx5_dev_interrupt_handler, sh);
2953 #ifdef HAVE_IBV_DEVX_ASYNC
2954 if (sh->intr_handle_devx.fd >= 0)
2955 rte_intr_callback_unregister(&sh->intr_handle_devx,
2956 mlx5_dev_interrupt_handler_devx, sh);
2958 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
2963 * Read statistics by a named counter.
2966 * Pointer to the private device data structure.
2967 * @param[in] ctr_name
2968 * Pointer to the name of the statistic counter to read
2970 * Pointer to read statistic value.
2972 * 0 on success and stat is valud, 1 if failed to read the value
2977 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2983 if (priv->q_counters != NULL &&
2984 strcmp(ctr_name, "out_of_buffer") == 0)
2985 return mlx5_devx_cmd_queue_counter_query
2986 (priv->q_counters, 0, (uint32_t *)stat);
2987 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2988 priv->sh->ibdev_path,
2991 fd = open(path, O_RDONLY);
2993 * in switchdev the file location is not per port
2994 * but rather in <ibdev_path>/hw_counters/<file_name>.
2997 MKSTR(path1, "%s/hw_counters/%s",
2998 priv->sh->ibdev_path,
3000 fd = open(path1, O_RDONLY);
3003 char buf[21] = {'\0'};
3004 ssize_t n = read(fd, buf, sizeof(buf));
3008 *stat = strtoull(buf, NULL, 10);
3018 * Set the reg_mr and dereg_mr call backs
3020 * @param reg_mr_cb[out]
3021 * Pointer to reg_mr func
3022 * @param dereg_mr_cb[out]
3023 * Pointer to dereg_mr func
3027 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
3028 mlx5_dereg_mr_t *dereg_mr_cb)
3030 *reg_mr_cb = mlx5_mr_verbs_ops.reg_mr;
3031 *dereg_mr_cb = mlx5_mr_verbs_ops.dereg_mr;
3035 * Remove a MAC address from device
3038 * Pointer to Ethernet device structure.
3040 * MAC address index.
3043 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
3045 struct mlx5_priv *priv = dev->data->dev_private;
3046 const int vf = priv->config.vf;
3049 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
3050 mlx5_ifindex(dev), priv->mac_own,
3051 &dev->data->mac_addrs[index], index);
3055 * Adds a MAC address to the device
3058 * Pointer to Ethernet device structure.
3060 * MAC address to register.
3062 * MAC address index.
3065 * 0 on success, a negative errno value otherwise
3068 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
3071 struct mlx5_priv *priv = dev->data->dev_private;
3072 const int vf = priv->config.vf;
3076 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
3077 mlx5_ifindex(dev), priv->mac_own,
3083 * Modify a VF MAC address
3086 * Pointer to device private data.
3088 * MAC address to modify into.
3090 * Net device interface index
3095 * 0 on success, a negative errno value otherwise
3098 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
3099 unsigned int iface_idx,
3100 struct rte_ether_addr *mac_addr,
3103 return mlx5_nl_vf_mac_addr_modify
3104 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
3108 * Set device promiscuous mode
3111 * Pointer to Ethernet device structure.
3113 * 0 - promiscuous is disabled, otherwise - enabled
3116 * 0 on success, a negative error value otherwise
3119 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
3121 struct mlx5_priv *priv = dev->data->dev_private;
3123 return mlx5_nl_promisc(priv->nl_socket_route,
3124 mlx5_ifindex(dev), !!enable);
3128 * Set device promiscuous mode
3131 * Pointer to Ethernet device structure.
3133 * 0 - all multicase is disabled, otherwise - enabled
3136 * 0 on success, a negative error value otherwise
3139 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
3141 struct mlx5_priv *priv = dev->data->dev_private;
3143 return mlx5_nl_allmulti(priv->nl_socket_route,
3144 mlx5_ifindex(dev), !!enable);
3148 * Flush device MAC addresses
3151 * Pointer to Ethernet device structure.
3155 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev)
3157 struct mlx5_priv *priv = dev->data->dev_private;
3159 mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
3160 dev->data->mac_addrs,
3161 MLX5_MAX_MAC_ADDRESSES, priv->mac_own);