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_common.h>
24 #include <rte_kvargs.h>
25 #include <rte_rwlock.h>
26 #include <rte_spinlock.h>
27 #include <rte_string_fns.h>
28 #include <rte_alarm.h>
29 #include <rte_eal_paging.h>
31 #include <mlx5_glue.h>
32 #include <mlx5_devx_cmds.h>
33 #include <mlx5_common.h>
34 #include <mlx5_common_mp.h>
35 #include <mlx5_common_mr.h>
36 #include <mlx5_malloc.h>
38 #include "mlx5_defs.h"
40 #include "mlx5_common_os.h"
41 #include "mlx5_utils.h"
42 #include "mlx5_rxtx.h"
45 #include "mlx5_autoconf.h"
47 #include "mlx5_flow.h"
48 #include "rte_pmd_mlx5.h"
49 #include "mlx5_verbs.h"
51 #include "mlx5_devx.h"
53 #define MLX5_TAGS_HLIST_ARRAY_SIZE (1 << 15)
55 #ifndef HAVE_IBV_MLX5_MOD_MPW
56 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
57 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
60 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
61 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
64 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
66 /* Spinlock for mlx5_shared_data allocation. */
67 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
69 /* Process local data for secondary processes. */
70 static struct mlx5_local_data mlx5_local_data;
72 /* rte flow indexed pool configuration. */
73 static struct mlx5_indexed_pool_config icfg[] = {
75 .size = sizeof(struct rte_flow),
79 .malloc = mlx5_malloc,
82 .type = "ctl_flow_ipool",
85 .size = sizeof(struct rte_flow),
91 .malloc = mlx5_malloc,
93 .per_core_cache = 1 << 14,
94 .type = "rte_flow_ipool",
97 .size = sizeof(struct rte_flow),
103 .malloc = mlx5_malloc,
106 .type = "mcp_flow_ipool",
111 * Set the completion channel file descriptor interrupt as non-blocking.
114 * Pointer to RQ channel object, which includes the channel fd
117 * The file descriptor (representing the intetrrupt) used in this channel.
120 * 0 on successfully setting the fd to non-blocking, non-zero otherwise.
123 mlx5_os_set_nonblock_channel_fd(int fd)
127 flags = fcntl(fd, F_GETFL);
128 return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
132 * Get mlx5 device attributes. The glue function query_device_ex() is called
133 * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
134 * device attributes from the glue out parameter.
137 * Pointer to ibv context.
140 * Pointer to mlx5 device attributes.
143 * 0 on success, non zero error number otherwise
146 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
149 struct ibv_device_attr_ex attr_ex;
150 memset(device_attr, 0, sizeof(*device_attr));
151 err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
155 device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
156 device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
157 device_attr->max_sge = attr_ex.orig_attr.max_sge;
158 device_attr->max_cq = attr_ex.orig_attr.max_cq;
159 device_attr->max_cqe = attr_ex.orig_attr.max_cqe;
160 device_attr->max_mr = attr_ex.orig_attr.max_mr;
161 device_attr->max_pd = attr_ex.orig_attr.max_pd;
162 device_attr->max_qp = attr_ex.orig_attr.max_qp;
163 device_attr->max_srq = attr_ex.orig_attr.max_srq;
164 device_attr->max_srq_wr = attr_ex.orig_attr.max_srq_wr;
165 device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
166 device_attr->max_rwq_indirection_table_size =
167 attr_ex.rss_caps.max_rwq_indirection_table_size;
168 device_attr->max_tso = attr_ex.tso_caps.max_tso;
169 device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
171 struct mlx5dv_context dv_attr = { .comp_mask = 0 };
172 err = mlx5_glue->dv_query_device(ctx, &dv_attr);
176 device_attr->flags = dv_attr.flags;
177 device_attr->comp_mask = dv_attr.comp_mask;
178 #ifdef HAVE_IBV_MLX5_MOD_SWP
179 device_attr->sw_parsing_offloads =
180 dv_attr.sw_parsing_caps.sw_parsing_offloads;
182 device_attr->min_single_stride_log_num_of_bytes =
183 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
184 device_attr->max_single_stride_log_num_of_bytes =
185 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
186 device_attr->min_single_wqe_log_num_of_strides =
187 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
188 device_attr->max_single_wqe_log_num_of_strides =
189 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
190 device_attr->stride_supported_qpts =
191 dv_attr.striding_rq_caps.supported_qpts;
192 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
193 device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
195 strlcpy(device_attr->fw_ver, attr_ex.orig_attr.fw_ver,
196 sizeof(device_attr->fw_ver));
202 * Verbs callback to allocate a memory. This function should allocate the space
203 * according to the size provided residing inside a huge page.
204 * Please note that all allocation must respect the alignment from libmlx5
205 * (i.e. currently rte_mem_page_size()).
208 * The size in bytes of the memory to allocate.
210 * A pointer to the callback data.
213 * Allocated buffer, NULL otherwise and rte_errno is set.
216 mlx5_alloc_verbs_buf(size_t size, void *data)
218 struct mlx5_dev_ctx_shared *sh = data;
220 size_t alignment = rte_mem_page_size();
221 if (alignment == (size_t)-1) {
222 DRV_LOG(ERR, "Failed to get mem page size");
227 MLX5_ASSERT(data != NULL);
228 ret = mlx5_malloc(0, size, alignment, sh->numa_node);
235 * Detect misc5 support or not
238 * Device private data pointer
240 #ifdef HAVE_MLX5DV_DR
242 __mlx5_discovery_misc5_cap(struct mlx5_priv *priv)
244 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
245 /* Dummy VxLAN matcher to detect rdma-core misc5 cap
246 * Case: IPv4--->UDP--->VxLAN--->vni
249 struct mlx5_flow_dv_match_params matcher_mask;
254 uint32_t *tunnel_header_m;
255 struct mlx5dv_flow_matcher_attr dv_attr;
257 memset(&matcher_mask, 0, sizeof(matcher_mask));
258 matcher_mask.size = sizeof(matcher_mask.buf);
259 match_m = matcher_mask.buf;
260 headers_m = MLX5_ADDR_OF(fte_match_param, match_m, outer_headers);
261 misc5_m = MLX5_ADDR_OF(fte_match_param,
262 match_m, misc_parameters_5);
263 tunnel_header_m = (uint32_t *)
264 MLX5_ADDR_OF(fte_match_set_misc5,
265 misc5_m, tunnel_header_1);
266 MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
267 MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 4);
268 MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport, 0xffff);
269 *tunnel_header_m = 0xffffff;
271 tbl = mlx5_glue->dr_create_flow_tbl(priv->sh->rx_domain, 1);
273 DRV_LOG(INFO, "No SW steering support");
276 dv_attr.type = IBV_FLOW_ATTR_NORMAL,
277 dv_attr.match_mask = (void *)&matcher_mask,
278 dv_attr.match_criteria_enable =
279 (1 << MLX5_MATCH_CRITERIA_ENABLE_OUTER_BIT) |
280 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC5_BIT);
281 dv_attr.priority = 3;
282 #ifdef HAVE_MLX5DV_DR_ESWITCH
284 if (priv->config.dv_esw_en) {
285 /* FDB enabled reg_c_0 */
286 dv_attr.match_criteria_enable |=
287 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC2_BIT);
288 misc2_m = MLX5_ADDR_OF(fte_match_param,
289 match_m, misc_parameters_2);
290 MLX5_SET(fte_match_set_misc2, misc2_m,
291 metadata_reg_c_0, 0xffff);
294 matcher = mlx5_glue->dv_create_flow_matcher(priv->sh->ctx,
297 priv->sh->misc5_cap = 1;
298 mlx5_glue->dv_destroy_flow_matcher(matcher);
300 mlx5_glue->dr_destroy_flow_tbl(tbl);
308 * Verbs callback to free a memory.
311 * A pointer to the memory to free.
313 * A pointer to the callback data.
316 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
318 MLX5_ASSERT(data != NULL);
323 * Initialize DR related data within private structure.
324 * Routine checks the reference counter and does actual
325 * resources creation/initialization only if counter is zero.
328 * Pointer to the private device data structure.
331 * Zero on success, positive error code otherwise.
334 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
336 struct mlx5_dev_ctx_shared *sh = priv->sh;
337 char s[MLX5_NAME_SIZE] __rte_unused;
340 MLX5_ASSERT(sh && sh->refcnt);
343 err = mlx5_alloc_table_hash_list(priv);
346 /* The resources below are only valid with DV support. */
347 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
348 /* Init port id action list. */
349 snprintf(s, sizeof(s), "%s_port_id_action_list", sh->ibdev_name);
350 sh->port_id_action_list = mlx5_list_create(s, sh, true,
351 flow_dv_port_id_create_cb,
352 flow_dv_port_id_match_cb,
353 flow_dv_port_id_remove_cb,
354 flow_dv_port_id_clone_cb,
355 flow_dv_port_id_clone_free_cb);
356 if (!sh->port_id_action_list)
358 /* Init push vlan action list. */
359 snprintf(s, sizeof(s), "%s_push_vlan_action_list", sh->ibdev_name);
360 sh->push_vlan_action_list = mlx5_list_create(s, sh, true,
361 flow_dv_push_vlan_create_cb,
362 flow_dv_push_vlan_match_cb,
363 flow_dv_push_vlan_remove_cb,
364 flow_dv_push_vlan_clone_cb,
365 flow_dv_push_vlan_clone_free_cb);
366 if (!sh->push_vlan_action_list)
368 /* Init sample action list. */
369 snprintf(s, sizeof(s), "%s_sample_action_list", sh->ibdev_name);
370 sh->sample_action_list = mlx5_list_create(s, sh, true,
371 flow_dv_sample_create_cb,
372 flow_dv_sample_match_cb,
373 flow_dv_sample_remove_cb,
374 flow_dv_sample_clone_cb,
375 flow_dv_sample_clone_free_cb);
376 if (!sh->sample_action_list)
378 /* Init dest array action list. */
379 snprintf(s, sizeof(s), "%s_dest_array_list", sh->ibdev_name);
380 sh->dest_array_list = mlx5_list_create(s, sh, true,
381 flow_dv_dest_array_create_cb,
382 flow_dv_dest_array_match_cb,
383 flow_dv_dest_array_remove_cb,
384 flow_dv_dest_array_clone_cb,
385 flow_dv_dest_array_clone_free_cb);
386 if (!sh->dest_array_list)
388 /* Create tags hash list table. */
389 snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
390 sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE, false,
391 false, sh, flow_dv_tag_create_cb,
392 flow_dv_tag_match_cb,
393 flow_dv_tag_remove_cb,
394 flow_dv_tag_clone_cb,
395 flow_dv_tag_clone_free_cb);
396 if (!sh->tag_table) {
397 DRV_LOG(ERR, "tags with hash creation failed.");
401 snprintf(s, sizeof(s), "%s_hdr_modify", sh->ibdev_name);
402 sh->modify_cmds = mlx5_hlist_create(s, MLX5_FLOW_HDR_MODIFY_HTABLE_SZ,
404 flow_dv_modify_create_cb,
405 flow_dv_modify_match_cb,
406 flow_dv_modify_remove_cb,
407 flow_dv_modify_clone_cb,
408 flow_dv_modify_clone_free_cb);
409 if (!sh->modify_cmds) {
410 DRV_LOG(ERR, "hdr modify hash creation failed");
414 snprintf(s, sizeof(s), "%s_encaps_decaps", sh->ibdev_name);
415 sh->encaps_decaps = mlx5_hlist_create(s,
416 MLX5_FLOW_ENCAP_DECAP_HTABLE_SZ,
418 flow_dv_encap_decap_create_cb,
419 flow_dv_encap_decap_match_cb,
420 flow_dv_encap_decap_remove_cb,
421 flow_dv_encap_decap_clone_cb,
422 flow_dv_encap_decap_clone_free_cb);
423 if (!sh->encaps_decaps) {
424 DRV_LOG(ERR, "encap decap hash creation failed");
429 #ifdef HAVE_MLX5DV_DR
432 /* Reference counter is zero, we should initialize structures. */
433 domain = mlx5_glue->dr_create_domain(sh->ctx,
434 MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
436 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
440 sh->rx_domain = domain;
441 domain = mlx5_glue->dr_create_domain(sh->ctx,
442 MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
444 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
448 sh->tx_domain = domain;
449 #ifdef HAVE_MLX5DV_DR_ESWITCH
450 if (priv->config.dv_esw_en) {
451 domain = mlx5_glue->dr_create_domain
452 (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
454 DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
458 sh->fdb_domain = domain;
461 * The drop action is just some dummy placeholder in rdma-core. It
462 * does not belong to domains and has no any attributes, and, can be
463 * shared by the entire device.
465 sh->dr_drop_action = mlx5_glue->dr_create_flow_action_drop();
466 if (!sh->dr_drop_action) {
467 DRV_LOG(ERR, "FDB mlx5dv_dr_create_flow_action_drop");
473 err = mlx5_alloc_tunnel_hub(sh);
475 DRV_LOG(ERR, "mlx5_alloc_tunnel_hub failed err=%d", err);
478 if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
479 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
480 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
482 mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
484 sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
485 if (!priv->config.allow_duplicate_pattern) {
486 #ifndef HAVE_MLX5_DR_ALLOW_DUPLICATE
487 DRV_LOG(WARNING, "Disallow duplicate pattern is not supported - maybe old rdma-core version?");
489 mlx5_glue->dr_allow_duplicate_rules(sh->rx_domain, 0);
490 mlx5_glue->dr_allow_duplicate_rules(sh->tx_domain, 0);
492 mlx5_glue->dr_allow_duplicate_rules(sh->fdb_domain, 0);
495 __mlx5_discovery_misc5_cap(priv);
496 #endif /* HAVE_MLX5DV_DR */
497 sh->default_miss_action =
498 mlx5_glue->dr_create_flow_action_default_miss();
499 if (!sh->default_miss_action)
500 DRV_LOG(WARNING, "Default miss action is not supported.");
503 /* Rollback the created objects. */
505 mlx5_glue->dr_destroy_domain(sh->rx_domain);
506 sh->rx_domain = NULL;
509 mlx5_glue->dr_destroy_domain(sh->tx_domain);
510 sh->tx_domain = NULL;
512 if (sh->fdb_domain) {
513 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
514 sh->fdb_domain = NULL;
516 if (sh->dr_drop_action) {
517 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
518 sh->dr_drop_action = NULL;
520 if (sh->pop_vlan_action) {
521 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
522 sh->pop_vlan_action = NULL;
524 if (sh->encaps_decaps) {
525 mlx5_hlist_destroy(sh->encaps_decaps);
526 sh->encaps_decaps = NULL;
528 if (sh->modify_cmds) {
529 mlx5_hlist_destroy(sh->modify_cmds);
530 sh->modify_cmds = NULL;
533 /* tags should be destroyed with flow before. */
534 mlx5_hlist_destroy(sh->tag_table);
535 sh->tag_table = NULL;
537 if (sh->tunnel_hub) {
538 mlx5_release_tunnel_hub(sh, priv->dev_port);
539 sh->tunnel_hub = NULL;
541 mlx5_free_table_hash_list(priv);
542 if (sh->port_id_action_list) {
543 mlx5_list_destroy(sh->port_id_action_list);
544 sh->port_id_action_list = NULL;
546 if (sh->push_vlan_action_list) {
547 mlx5_list_destroy(sh->push_vlan_action_list);
548 sh->push_vlan_action_list = NULL;
550 if (sh->sample_action_list) {
551 mlx5_list_destroy(sh->sample_action_list);
552 sh->sample_action_list = NULL;
554 if (sh->dest_array_list) {
555 mlx5_list_destroy(sh->dest_array_list);
556 sh->dest_array_list = NULL;
562 * Destroy DR related data within private structure.
565 * Pointer to the private device data structure.
568 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
570 struct mlx5_dev_ctx_shared *sh = priv->sh;
572 MLX5_ASSERT(sh && sh->refcnt);
575 #ifdef HAVE_MLX5DV_DR
577 mlx5_glue->dr_destroy_domain(sh->rx_domain);
578 sh->rx_domain = NULL;
581 mlx5_glue->dr_destroy_domain(sh->tx_domain);
582 sh->tx_domain = NULL;
584 #ifdef HAVE_MLX5DV_DR_ESWITCH
585 if (sh->fdb_domain) {
586 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
587 sh->fdb_domain = NULL;
589 if (sh->dr_drop_action) {
590 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
591 sh->dr_drop_action = NULL;
594 if (sh->pop_vlan_action) {
595 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
596 sh->pop_vlan_action = NULL;
598 #endif /* HAVE_MLX5DV_DR */
599 if (sh->default_miss_action)
600 mlx5_glue->destroy_flow_action
601 (sh->default_miss_action);
602 if (sh->encaps_decaps) {
603 mlx5_hlist_destroy(sh->encaps_decaps);
604 sh->encaps_decaps = NULL;
606 if (sh->modify_cmds) {
607 mlx5_hlist_destroy(sh->modify_cmds);
608 sh->modify_cmds = NULL;
611 /* tags should be destroyed with flow before. */
612 mlx5_hlist_destroy(sh->tag_table);
613 sh->tag_table = NULL;
615 if (sh->tunnel_hub) {
616 mlx5_release_tunnel_hub(sh, priv->dev_port);
617 sh->tunnel_hub = NULL;
619 mlx5_free_table_hash_list(priv);
620 if (sh->port_id_action_list) {
621 mlx5_list_destroy(sh->port_id_action_list);
622 sh->port_id_action_list = NULL;
624 if (sh->push_vlan_action_list) {
625 mlx5_list_destroy(sh->push_vlan_action_list);
626 sh->push_vlan_action_list = NULL;
628 if (sh->sample_action_list) {
629 mlx5_list_destroy(sh->sample_action_list);
630 sh->sample_action_list = NULL;
632 if (sh->dest_array_list) {
633 mlx5_list_destroy(sh->dest_array_list);
634 sh->dest_array_list = NULL;
639 * Initialize shared data between primary and secondary process.
641 * A memzone is reserved by primary process and secondary processes attach to
645 * 0 on success, a negative errno value otherwise and rte_errno is set.
648 mlx5_init_shared_data(void)
650 const struct rte_memzone *mz;
653 rte_spinlock_lock(&mlx5_shared_data_lock);
654 if (mlx5_shared_data == NULL) {
655 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
656 /* Allocate shared memory. */
657 mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
658 sizeof(*mlx5_shared_data),
662 "Cannot allocate mlx5 shared data");
666 mlx5_shared_data = mz->addr;
667 memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
668 rte_spinlock_init(&mlx5_shared_data->lock);
670 /* Lookup allocated shared memory. */
671 mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
674 "Cannot attach mlx5 shared data");
678 mlx5_shared_data = mz->addr;
679 memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
683 rte_spinlock_unlock(&mlx5_shared_data_lock);
688 * PMD global initialization.
690 * Independent from individual device, this function initializes global
691 * per-PMD data structures distinguishing primary and secondary processes.
692 * Hence, each initialization is called once per a process.
695 * 0 on success, a negative errno value otherwise and rte_errno is set.
700 struct mlx5_shared_data *sd;
701 struct mlx5_local_data *ld = &mlx5_local_data;
704 if (mlx5_init_shared_data())
706 sd = mlx5_shared_data;
708 rte_spinlock_lock(&sd->lock);
709 switch (rte_eal_process_type()) {
710 case RTE_PROC_PRIMARY:
713 LIST_INIT(&sd->mem_event_cb_list);
714 rte_rwlock_init(&sd->mem_event_rwlock);
715 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
716 mlx5_mr_mem_event_cb, NULL);
717 ret = mlx5_mp_init_primary(MLX5_MP_NAME,
718 mlx5_mp_os_primary_handle);
721 sd->init_done = true;
723 case RTE_PROC_SECONDARY:
726 ret = mlx5_mp_init_secondary(MLX5_MP_NAME,
727 mlx5_mp_os_secondary_handle);
731 ld->init_done = true;
737 rte_spinlock_unlock(&sd->lock);
742 * Create the Tx queue DevX/Verbs object.
745 * Pointer to Ethernet device.
747 * Queue index in DPDK Tx queue array.
750 * 0 on success, a negative errno value otherwise and rte_errno is set.
753 mlx5_os_txq_obj_new(struct rte_eth_dev *dev, uint16_t idx)
755 struct mlx5_priv *priv = dev->data->dev_private;
756 struct mlx5_txq_data *txq_data = (*priv->txqs)[idx];
757 struct mlx5_txq_ctrl *txq_ctrl =
758 container_of(txq_data, struct mlx5_txq_ctrl, txq);
760 if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN)
761 return mlx5_txq_devx_obj_new(dev, idx);
762 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
763 if (!priv->config.dv_esw_en)
764 return mlx5_txq_devx_obj_new(dev, idx);
766 return mlx5_txq_ibv_obj_new(dev, idx);
770 * Release an Tx DevX/verbs queue object.
773 * DevX/Verbs Tx queue object.
776 mlx5_os_txq_obj_release(struct mlx5_txq_obj *txq_obj)
778 if (txq_obj->txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) {
779 mlx5_txq_devx_obj_release(txq_obj);
782 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
783 if (!txq_obj->txq_ctrl->priv->config.dv_esw_en) {
784 mlx5_txq_devx_obj_release(txq_obj);
788 mlx5_txq_ibv_obj_release(txq_obj);
792 * DV flow counter mode detect and config.
795 * Pointer to rte_eth_dev structure.
799 mlx5_flow_counter_mode_config(struct rte_eth_dev *dev __rte_unused)
801 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
802 struct mlx5_priv *priv = dev->data->dev_private;
803 struct mlx5_dev_ctx_shared *sh = priv->sh;
806 #ifndef HAVE_IBV_DEVX_ASYNC
810 if (!priv->config.devx || !priv->config.dv_flow_en ||
811 !priv->config.hca_attr.flow_counters_dump ||
812 !(priv->config.hca_attr.flow_counter_bulk_alloc_bitmap & 0x4) ||
813 (mlx5_flow_dv_discover_counter_offset_support(dev) == -ENOTSUP))
817 DRV_LOG(INFO, "Use fall-back DV counter management. Flow "
818 "counter dump:%d, bulk_alloc_bitmap:0x%hhx.",
819 priv->config.hca_attr.flow_counters_dump,
820 priv->config.hca_attr.flow_counter_bulk_alloc_bitmap);
821 /* Initialize fallback mode only on the port initializes sh. */
823 sh->cmng.counter_fallback = fallback;
824 else if (fallback != sh->cmng.counter_fallback)
825 DRV_LOG(WARNING, "Port %d in sh has different fallback mode "
826 "with others:%d.", PORT_ID(priv), fallback);
831 mlx5_queue_counter_id_prepare(struct rte_eth_dev *dev)
833 struct mlx5_priv *priv = dev->data->dev_private;
834 void *ctx = priv->sh->ctx;
836 priv->q_counters = mlx5_devx_cmd_queue_counter_alloc(ctx);
837 if (!priv->q_counters) {
838 struct ibv_cq *cq = mlx5_glue->create_cq(ctx, 1, NULL, NULL, 0);
841 DRV_LOG(DEBUG, "Port %d queue counter object cannot be created "
842 "by DevX - fall-back to use the kernel driver global "
843 "queue counter.", dev->data->port_id);
844 /* Create WQ by kernel and query its queue counter ID. */
846 wq = mlx5_glue->create_wq(ctx,
847 &(struct ibv_wq_init_attr){
848 .wq_type = IBV_WQT_RQ,
855 /* Counter is assigned only on RDY state. */
856 int ret = mlx5_glue->modify_wq(wq,
857 &(struct ibv_wq_attr){
858 .attr_mask = IBV_WQ_ATTR_STATE,
859 .wq_state = IBV_WQS_RDY,
863 mlx5_devx_cmd_wq_query(wq,
864 &priv->counter_set_id);
865 claim_zero(mlx5_glue->destroy_wq(wq));
867 claim_zero(mlx5_glue->destroy_cq(cq));
870 priv->counter_set_id = priv->q_counters->id;
872 if (priv->counter_set_id == 0)
873 DRV_LOG(INFO, "Part of the port %d statistics will not be "
874 "available.", dev->data->port_id);
878 * Check if representor spawn info match devargs.
881 * Verbs device parameters (name, port, switch_info) to spawn.
883 * Device devargs to probe.
889 mlx5_representor_match(struct mlx5_dev_spawn_data *spawn,
890 struct rte_eth_devargs *eth_da)
892 struct mlx5_switch_info *switch_info = &spawn->info;
895 uint16_t repr_id = mlx5_representor_id_encode(switch_info,
898 switch (eth_da->type) {
899 case RTE_ETH_REPRESENTOR_SF:
900 if (!(spawn->info.port_name == -1 &&
901 switch_info->name_type ==
902 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
903 switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFSF) {
908 case RTE_ETH_REPRESENTOR_VF:
909 /* Allows HPF representor index -1 as exception. */
910 if (!(spawn->info.port_name == -1 &&
911 switch_info->name_type ==
912 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
913 switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFVF) {
918 case RTE_ETH_REPRESENTOR_NONE:
923 DRV_LOG(ERR, "unsupported representor type");
926 /* Check representor ID: */
927 for (p = 0; p < eth_da->nb_ports; ++p) {
928 if (spawn->pf_bond < 0) {
929 /* For non-LAG mode, allow and ignore pf. */
930 switch_info->pf_num = eth_da->ports[p];
931 repr_id = mlx5_representor_id_encode(switch_info,
934 for (f = 0; f < eth_da->nb_representor_ports; ++f) {
935 id = MLX5_REPRESENTOR_ID
936 (eth_da->ports[p], eth_da->type,
937 eth_da->representor_ports[f]);
948 * Spawn an Ethernet device from Verbs information.
951 * Backing DPDK device.
953 * Verbs device parameters (name, port, switch_info) to spawn.
955 * Device configuration parameters.
960 * A valid Ethernet device object on success, NULL otherwise and rte_errno
961 * is set. The following errors are defined:
963 * EBUSY: device is not supposed to be spawned.
964 * EEXIST: device is already spawned
966 static struct rte_eth_dev *
967 mlx5_dev_spawn(struct rte_device *dpdk_dev,
968 struct mlx5_dev_spawn_data *spawn,
969 struct mlx5_dev_config *config,
970 struct rte_eth_devargs *eth_da)
972 const struct mlx5_switch_info *switch_info = &spawn->info;
973 struct mlx5_dev_ctx_shared *sh = NULL;
974 struct ibv_port_attr port_attr;
975 struct mlx5dv_context dv_attr = { .comp_mask = 0 };
976 struct rte_eth_dev *eth_dev = NULL;
977 struct mlx5_priv *priv = NULL;
979 unsigned int hw_padding = 0;
981 unsigned int tunnel_en = 0;
982 unsigned int mpls_en = 0;
983 unsigned int swp = 0;
984 unsigned int mprq = 0;
985 unsigned int mprq_min_stride_size_n = 0;
986 unsigned int mprq_max_stride_size_n = 0;
987 unsigned int mprq_min_stride_num_n = 0;
988 unsigned int mprq_max_stride_num_n = 0;
989 struct rte_ether_addr mac;
990 char name[RTE_ETH_NAME_MAX_LEN];
991 int own_domain_id = 0;
993 struct mlx5_port_info vport_info = { .query_flags = 0 };
996 /* Determine if this port representor is supposed to be spawned. */
997 if (switch_info->representor && dpdk_dev->devargs &&
998 !mlx5_representor_match(spawn, eth_da))
1000 /* Build device name. */
1001 if (spawn->pf_bond < 0) {
1002 /* Single device. */
1003 if (!switch_info->representor)
1004 strlcpy(name, dpdk_dev->name, sizeof(name));
1006 err = snprintf(name, sizeof(name), "%s_representor_%s%u",
1008 switch_info->name_type ==
1009 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
1010 switch_info->port_name);
1012 /* Bonding device. */
1013 if (!switch_info->representor) {
1014 err = snprintf(name, sizeof(name), "%s_%s",
1016 mlx5_os_get_dev_device_name(spawn->phys_dev));
1018 err = snprintf(name, sizeof(name), "%s_%s_representor_c%dpf%d%s%u",
1020 mlx5_os_get_dev_device_name(spawn->phys_dev),
1021 switch_info->ctrl_num,
1022 switch_info->pf_num,
1023 switch_info->name_type ==
1024 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
1025 switch_info->port_name);
1028 if (err >= (int)sizeof(name))
1029 DRV_LOG(WARNING, "device name overflow %s", name);
1030 /* check if the device is already spawned */
1031 if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
1035 DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
1036 if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
1037 struct mlx5_mp_id mp_id;
1039 eth_dev = rte_eth_dev_attach_secondary(name);
1040 if (eth_dev == NULL) {
1041 DRV_LOG(ERR, "can not attach rte ethdev");
1045 eth_dev->device = dpdk_dev;
1046 eth_dev->dev_ops = &mlx5_dev_sec_ops;
1047 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1048 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1049 err = mlx5_proc_priv_init(eth_dev);
1052 mp_id.port_id = eth_dev->data->port_id;
1053 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
1054 /* Receive command fd from primary process */
1055 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
1058 /* Remap UAR for Tx queues. */
1059 err = mlx5_tx_uar_init_secondary(eth_dev, err);
1063 * Ethdev pointer is still required as input since
1064 * the primary device is not accessible from the
1065 * secondary process.
1067 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
1068 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
1071 mlx5_dev_close(eth_dev);
1075 * Some parameters ("tx_db_nc" in particularly) are needed in
1076 * advance to create dv/verbs device context. We proceed the
1077 * devargs here to get ones, and later proceed devargs again
1078 * to override some hardware settings.
1080 err = mlx5_args(config, dpdk_dev->devargs);
1083 DRV_LOG(ERR, "failed to process device arguments: %s",
1084 strerror(rte_errno));
1087 if (config->dv_miss_info) {
1088 if (switch_info->master || switch_info->representor)
1089 config->dv_xmeta_en = MLX5_XMETA_MODE_META16;
1091 mlx5_malloc_mem_select(config->sys_mem_en);
1092 sh = mlx5_alloc_shared_dev_ctx(spawn, config);
1095 config->devx = sh->devx;
1096 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
1097 config->dest_tir = 1;
1099 #ifdef HAVE_IBV_MLX5_MOD_SWP
1100 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
1103 * Multi-packet send is supported by ConnectX-4 Lx PF as well
1104 * as all ConnectX-5 devices.
1106 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1107 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
1109 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1110 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
1112 mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
1113 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
1114 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
1115 DRV_LOG(DEBUG, "enhanced MPW is supported");
1116 mps = MLX5_MPW_ENHANCED;
1118 DRV_LOG(DEBUG, "MPW is supported");
1122 DRV_LOG(DEBUG, "MPW isn't supported");
1123 mps = MLX5_MPW_DISABLED;
1125 #ifdef HAVE_IBV_MLX5_MOD_SWP
1126 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
1127 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
1128 DRV_LOG(DEBUG, "SWP support: %u", swp);
1130 config->swp = !!swp;
1131 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1132 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
1133 struct mlx5dv_striding_rq_caps mprq_caps =
1134 dv_attr.striding_rq_caps;
1136 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
1137 mprq_caps.min_single_stride_log_num_of_bytes);
1138 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
1139 mprq_caps.max_single_stride_log_num_of_bytes);
1140 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
1141 mprq_caps.min_single_wqe_log_num_of_strides);
1142 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
1143 mprq_caps.max_single_wqe_log_num_of_strides);
1144 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
1145 mprq_caps.supported_qpts);
1146 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
1148 mprq_min_stride_size_n =
1149 mprq_caps.min_single_stride_log_num_of_bytes;
1150 mprq_max_stride_size_n =
1151 mprq_caps.max_single_stride_log_num_of_bytes;
1152 mprq_min_stride_num_n =
1153 mprq_caps.min_single_wqe_log_num_of_strides;
1154 mprq_max_stride_num_n =
1155 mprq_caps.max_single_wqe_log_num_of_strides;
1158 /* Rx CQE compression is enabled by default. */
1159 config->cqe_comp = 1;
1160 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1161 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
1162 tunnel_en = ((dv_attr.tunnel_offloads_caps &
1163 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
1164 (dv_attr.tunnel_offloads_caps &
1165 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
1166 (dv_attr.tunnel_offloads_caps &
1167 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
1169 DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
1170 tunnel_en ? "" : "not ");
1173 "tunnel offloading disabled due to old OFED/rdma-core version");
1175 config->tunnel_en = tunnel_en;
1176 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1177 mpls_en = ((dv_attr.tunnel_offloads_caps &
1178 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
1179 (dv_attr.tunnel_offloads_caps &
1180 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
1181 DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
1182 mpls_en ? "" : "not ");
1184 DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
1185 " old OFED/rdma-core version or firmware configuration");
1187 config->mpls_en = mpls_en;
1188 /* Check port status. */
1189 err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
1191 DRV_LOG(ERR, "port query failed: %s", strerror(err));
1194 if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
1195 DRV_LOG(ERR, "port is not configured in Ethernet mode");
1199 if (port_attr.state != IBV_PORT_ACTIVE)
1200 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
1201 mlx5_glue->port_state_str(port_attr.state),
1203 /* Allocate private eth device data. */
1204 priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
1206 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1208 DRV_LOG(ERR, "priv allocation failure");
1213 priv->dev_port = spawn->phys_port;
1214 priv->pci_dev = spawn->pci_dev;
1215 priv->mtu = RTE_ETHER_MTU;
1216 /* Some internal functions rely on Netlink sockets, open them now. */
1217 priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
1218 priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
1219 priv->representor = !!switch_info->representor;
1220 priv->master = !!switch_info->master;
1221 priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
1222 priv->vport_meta_tag = 0;
1223 priv->vport_meta_mask = 0;
1224 priv->pf_bond = spawn->pf_bond;
1226 * If we have E-Switch we should determine the vport attributes.
1227 * E-Switch may use either source vport field or reg_c[0] metadata
1228 * register to match on vport index. The engaged part of metadata
1229 * register is defined by mask.
1231 if (switch_info->representor || switch_info->master) {
1232 err = mlx5_glue->devx_port_query(sh->ctx,
1237 "can't query devx port %d on device %s",
1239 mlx5_os_get_dev_device_name(spawn->phys_dev));
1240 vport_info.query_flags = 0;
1243 if (vport_info.query_flags & MLX5_PORT_QUERY_REG_C0) {
1244 priv->vport_meta_tag = vport_info.vport_meta_tag;
1245 priv->vport_meta_mask = vport_info.vport_meta_mask;
1246 if (!priv->vport_meta_mask) {
1247 DRV_LOG(ERR, "vport zero mask for port %d"
1248 " on bonding device %s",
1250 mlx5_os_get_dev_device_name
1255 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
1256 DRV_LOG(ERR, "invalid vport tag for port %d"
1257 " on bonding device %s",
1259 mlx5_os_get_dev_device_name
1265 if (vport_info.query_flags & MLX5_PORT_QUERY_VPORT) {
1266 priv->vport_id = vport_info.vport_id;
1267 } else if (spawn->pf_bond >= 0 &&
1268 (switch_info->representor || switch_info->master)) {
1269 DRV_LOG(ERR, "can't deduce vport index for port %d"
1270 " on bonding device %s",
1272 mlx5_os_get_dev_device_name(spawn->phys_dev));
1277 * Suppose vport index in compatible way. Kernel/rdma_core
1278 * support single E-Switch per PF configurations only and
1279 * vport_id field contains the vport index for associated VF,
1280 * which is deduced from representor port name.
1281 * For example, let's have the IB device port 10, it has
1282 * attached network device eth0, which has port name attribute
1283 * pf0vf2, we can deduce the VF number as 2, and set vport index
1284 * as 3 (2+1). This assigning schema should be changed if the
1285 * multiple E-Switch instances per PF configurations or/and PCI
1286 * subfunctions are added.
1288 priv->vport_id = switch_info->representor ?
1289 switch_info->port_name + 1 : -1;
1291 priv->representor_id = mlx5_representor_id_encode(switch_info,
1294 * Look for sibling devices in order to reuse their switch domain
1295 * if any, otherwise allocate one.
1297 MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
1298 const struct mlx5_priv *opriv =
1299 rte_eth_devices[port_id].data->dev_private;
1302 opriv->sh != priv->sh ||
1304 RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
1306 priv->domain_id = opriv->domain_id;
1309 if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
1310 err = rte_eth_switch_domain_alloc(&priv->domain_id);
1313 DRV_LOG(ERR, "unable to allocate switch domain: %s",
1314 strerror(rte_errno));
1319 /* Override some values set by hardware configuration. */
1320 mlx5_args(config, dpdk_dev->devargs);
1321 err = mlx5_dev_check_sibling_config(priv, config);
1324 config->hw_csum = !!(sh->device_attr.device_cap_flags_ex &
1325 IBV_DEVICE_RAW_IP_CSUM);
1326 DRV_LOG(DEBUG, "checksum offloading is %ssupported",
1327 (config->hw_csum ? "" : "not "));
1328 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
1329 !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1330 DRV_LOG(DEBUG, "counters are not supported");
1332 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
1333 if (config->dv_flow_en) {
1334 DRV_LOG(WARNING, "DV flow is not supported");
1335 config->dv_flow_en = 0;
1338 config->ind_table_max_size =
1339 sh->device_attr.max_rwq_indirection_table_size;
1341 * Remove this check once DPDK supports larger/variable
1342 * indirection tables.
1344 if (config->ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
1345 config->ind_table_max_size = ETH_RSS_RETA_SIZE_512;
1346 DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
1347 config->ind_table_max_size);
1348 config->hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
1349 IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
1350 DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
1351 (config->hw_vlan_strip ? "" : "not "));
1352 config->hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
1353 IBV_RAW_PACKET_CAP_SCATTER_FCS);
1354 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
1355 hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
1356 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
1357 hw_padding = !!(sh->device_attr.device_cap_flags_ex &
1358 IBV_DEVICE_PCI_WRITE_END_PADDING);
1360 if (config->hw_padding && !hw_padding) {
1361 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
1362 config->hw_padding = 0;
1363 } else if (config->hw_padding) {
1364 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
1366 config->tso = (sh->device_attr.max_tso > 0 &&
1367 (sh->device_attr.tso_supported_qpts &
1368 (1 << IBV_QPT_RAW_PACKET)));
1370 config->tso_max_payload_sz = sh->device_attr.max_tso;
1372 * MPW is disabled by default, while the Enhanced MPW is enabled
1375 if (config->mps == MLX5_ARG_UNSET)
1376 config->mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
1379 config->mps = config->mps ? mps : MLX5_MPW_DISABLED;
1380 DRV_LOG(INFO, "%sMPS is %s",
1381 config->mps == MLX5_MPW_ENHANCED ? "enhanced " :
1382 config->mps == MLX5_MPW ? "legacy " : "",
1383 config->mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
1385 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config->hca_attr);
1390 /* Check relax ordering support. */
1391 if (!haswell_broadwell_cpu) {
1392 sh->cmng.relaxed_ordering_write =
1393 config->hca_attr.relaxed_ordering_write;
1394 sh->cmng.relaxed_ordering_read =
1395 config->hca_attr.relaxed_ordering_read;
1397 sh->cmng.relaxed_ordering_read = 0;
1398 sh->cmng.relaxed_ordering_write = 0;
1400 sh->rq_ts_format = config->hca_attr.rq_ts_format;
1401 sh->sq_ts_format = config->hca_attr.sq_ts_format;
1402 sh->qp_ts_format = config->hca_attr.qp_ts_format;
1403 /* Check for LRO support. */
1404 if (config->dest_tir && config->hca_attr.lro_cap &&
1405 config->dv_flow_en) {
1406 /* TBD check tunnel lro caps. */
1407 config->lro.supported = config->hca_attr.lro_cap;
1408 DRV_LOG(DEBUG, "Device supports LRO");
1410 * If LRO timeout is not configured by application,
1411 * use the minimal supported value.
1413 if (!config->lro.timeout)
1414 config->lro.timeout =
1415 config->hca_attr.lro_timer_supported_periods[0];
1416 DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
1417 config->lro.timeout);
1418 DRV_LOG(DEBUG, "LRO minimal size of TCP segment "
1419 "required for coalescing is %d bytes",
1420 config->hca_attr.lro_min_mss_size);
1422 #if defined(HAVE_MLX5DV_DR) && \
1423 (defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) || \
1424 defined(HAVE_MLX5_DR_CREATE_ACTION_ASO))
1425 if (config->hca_attr.qos.sup &&
1426 config->hca_attr.qos.flow_meter_old &&
1427 config->dv_flow_en) {
1428 uint8_t reg_c_mask =
1429 config->hca_attr.qos.flow_meter_reg_c_ids;
1431 * Meter needs two REG_C's for color match and pre-sfx
1432 * flow match. Here get the REG_C for color match.
1433 * REG_C_0 and REG_C_1 is reserved for metadata feature.
1436 if (__builtin_popcount(reg_c_mask) < 1) {
1438 DRV_LOG(WARNING, "No available register for"
1442 * The meter color register is used by the
1443 * flow-hit feature as well.
1444 * The flow-hit feature must use REG_C_3
1445 * Prefer REG_C_3 if it is available.
1447 if (reg_c_mask & (1 << (REG_C_3 - REG_C_0)))
1448 priv->mtr_color_reg = REG_C_3;
1450 priv->mtr_color_reg = ffs(reg_c_mask)
1453 priv->mtr_reg_share =
1454 config->hca_attr.qos.flow_meter;
1455 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
1456 priv->mtr_color_reg);
1459 if (config->hca_attr.qos.sup &&
1460 config->hca_attr.qos.flow_meter_aso_sup) {
1461 uint32_t log_obj_size =
1462 rte_log2_u32(MLX5_ASO_MTRS_PER_POOL >> 1);
1464 config->hca_attr.qos.log_meter_aso_granularity &&
1466 config->hca_attr.qos.log_meter_aso_max_alloc)
1467 sh->meter_aso_en = 1;
1470 err = mlx5_aso_flow_mtrs_mng_init(priv->sh);
1476 if (config->hca_attr.flow.tunnel_header_0_1)
1477 sh->tunnel_header_0_1 = 1;
1479 #ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO
1480 if (config->hca_attr.flow_hit_aso &&
1481 priv->mtr_color_reg == REG_C_3) {
1482 sh->flow_hit_aso_en = 1;
1483 err = mlx5_flow_aso_age_mng_init(sh);
1488 DRV_LOG(DEBUG, "Flow Hit ASO is supported.");
1490 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */
1491 #if defined(HAVE_MLX5_DR_CREATE_ACTION_ASO) && \
1492 defined(HAVE_MLX5_DR_ACTION_ASO_CT)
1493 if (config->hca_attr.ct_offload &&
1494 priv->mtr_color_reg == REG_C_3) {
1495 err = mlx5_flow_aso_ct_mng_init(sh);
1500 DRV_LOG(DEBUG, "CT ASO is supported.");
1503 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO && HAVE_MLX5_DR_ACTION_ASO_CT */
1504 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE)
1505 if (config->hca_attr.log_max_ft_sampler_num > 0 &&
1506 config->dv_flow_en) {
1507 priv->sampler_en = 1;
1508 DRV_LOG(DEBUG, "Sampler enabled!");
1510 priv->sampler_en = 0;
1511 if (!config->hca_attr.log_max_ft_sampler_num)
1513 "No available register for sampler.");
1515 DRV_LOG(DEBUG, "DV flow is not supported!");
1519 if (config->cqe_comp && RTE_CACHE_LINE_SIZE == 128 &&
1520 !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) {
1521 DRV_LOG(WARNING, "Rx CQE 128B compression is not supported");
1522 config->cqe_comp = 0;
1524 if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_FTAG_STRIDX &&
1525 (!config->devx || !config->hca_attr.mini_cqe_resp_flow_tag)) {
1526 DRV_LOG(WARNING, "Flow Tag CQE compression"
1527 " format isn't supported.");
1528 config->cqe_comp = 0;
1530 if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_L34H_STRIDX &&
1531 (!config->devx || !config->hca_attr.mini_cqe_resp_l3_l4_tag)) {
1532 DRV_LOG(WARNING, "L3/L4 Header CQE compression"
1533 " format isn't supported.");
1534 config->cqe_comp = 0;
1536 DRV_LOG(DEBUG, "Rx CQE compression is %ssupported",
1537 config->cqe_comp ? "" : "not ");
1538 if (config->tx_pp) {
1539 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
1540 config->hca_attr.dev_freq_khz);
1541 DRV_LOG(DEBUG, "Packet pacing is %ssupported",
1542 config->hca_attr.qos.packet_pacing ? "" : "not ");
1543 DRV_LOG(DEBUG, "Cross channel ops are %ssupported",
1544 config->hca_attr.cross_channel ? "" : "not ");
1545 DRV_LOG(DEBUG, "WQE index ignore is %ssupported",
1546 config->hca_attr.wqe_index_ignore ? "" : "not ");
1547 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported",
1548 config->hca_attr.non_wire_sq ? "" : "not ");
1549 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
1550 config->hca_attr.log_max_static_sq_wq ? "" : "not ",
1551 config->hca_attr.log_max_static_sq_wq);
1552 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported",
1553 config->hca_attr.qos.wqe_rate_pp ? "" : "not ");
1554 if (!config->devx) {
1555 DRV_LOG(ERR, "DevX is required for packet pacing");
1559 if (!config->hca_attr.qos.packet_pacing) {
1560 DRV_LOG(ERR, "Packet pacing is not supported");
1564 if (!config->hca_attr.cross_channel) {
1565 DRV_LOG(ERR, "Cross channel operations are"
1566 " required for packet pacing");
1570 if (!config->hca_attr.wqe_index_ignore) {
1571 DRV_LOG(ERR, "WQE index ignore feature is"
1572 " required for packet pacing");
1576 if (!config->hca_attr.non_wire_sq) {
1577 DRV_LOG(ERR, "Non-wire SQ feature is"
1578 " required for packet pacing");
1582 if (!config->hca_attr.log_max_static_sq_wq) {
1583 DRV_LOG(ERR, "Static WQE SQ feature is"
1584 " required for packet pacing");
1588 if (!config->hca_attr.qos.wqe_rate_pp) {
1589 DRV_LOG(ERR, "WQE rate mode is required"
1590 " for packet pacing");
1594 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1595 DRV_LOG(ERR, "DevX does not provide UAR offset,"
1596 " can't create queues for packet pacing");
1602 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
1604 err = config->hca_attr.access_register_user ?
1605 mlx5_devx_cmd_register_read
1606 (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0,
1607 reg, MLX5_ST_SZ_DW(register_mtutc)) : ENOTSUP;
1611 /* MTUTC register is read successfully. */
1612 ts_mode = MLX5_GET(register_mtutc, reg,
1614 if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME)
1615 config->rt_timestamp = 1;
1617 /* Kernel does not support register reading. */
1618 if (config->hca_attr.dev_freq_khz ==
1619 (NS_PER_S / MS_PER_S))
1620 config->rt_timestamp = 1;
1624 * If HW has bug working with tunnel packet decapsulation and
1625 * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip
1626 * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore.
1628 if (config->hca_attr.scatter_fcs_w_decap_disable && config->decap_en)
1629 config->hw_fcs_strip = 0;
1630 DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
1631 (config->hw_fcs_strip ? "" : "not "));
1632 if (config->mprq.enabled && mprq) {
1633 if (config->mprq.stride_num_n &&
1634 (config->mprq.stride_num_n > mprq_max_stride_num_n ||
1635 config->mprq.stride_num_n < mprq_min_stride_num_n)) {
1636 config->mprq.stride_num_n =
1637 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1638 mprq_min_stride_num_n),
1639 mprq_max_stride_num_n);
1641 "the number of strides"
1642 " for Multi-Packet RQ is out of range,"
1643 " setting default value (%u)",
1644 1 << config->mprq.stride_num_n);
1646 if (config->mprq.stride_size_n &&
1647 (config->mprq.stride_size_n > mprq_max_stride_size_n ||
1648 config->mprq.stride_size_n < mprq_min_stride_size_n)) {
1649 config->mprq.stride_size_n =
1650 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
1651 mprq_min_stride_size_n),
1652 mprq_max_stride_size_n);
1654 "the size of a stride"
1655 " for Multi-Packet RQ is out of range,"
1656 " setting default value (%u)",
1657 1 << config->mprq.stride_size_n);
1659 config->mprq.min_stride_size_n = mprq_min_stride_size_n;
1660 config->mprq.max_stride_size_n = mprq_max_stride_size_n;
1661 } else if (config->mprq.enabled && !mprq) {
1662 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1663 config->mprq.enabled = 0;
1665 if (config->max_dump_files_num == 0)
1666 config->max_dump_files_num = 128;
1667 eth_dev = rte_eth_dev_allocate(name);
1668 if (eth_dev == NULL) {
1669 DRV_LOG(ERR, "can not allocate rte ethdev");
1673 if (priv->representor) {
1674 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1675 eth_dev->data->representor_id = priv->representor_id;
1677 priv->mp_id.port_id = eth_dev->data->port_id;
1678 strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
1680 * Store associated network device interface index. This index
1681 * is permanent throughout the lifetime of device. So, we may store
1682 * the ifindex here and use the cached value further.
1684 MLX5_ASSERT(spawn->ifindex);
1685 priv->if_index = spawn->ifindex;
1686 eth_dev->data->dev_private = priv;
1687 priv->dev_data = eth_dev->data;
1688 eth_dev->data->mac_addrs = priv->mac;
1689 eth_dev->device = dpdk_dev;
1690 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1691 /* Configure the first MAC address by default. */
1692 if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1694 "port %u cannot get MAC address, is mlx5_en"
1695 " loaded? (errno: %s)",
1696 eth_dev->data->port_id, strerror(rte_errno));
1701 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1702 eth_dev->data->port_id,
1703 mac.addr_bytes[0], mac.addr_bytes[1],
1704 mac.addr_bytes[2], mac.addr_bytes[3],
1705 mac.addr_bytes[4], mac.addr_bytes[5]);
1706 #ifdef RTE_LIBRTE_MLX5_DEBUG
1708 char ifname[MLX5_NAMESIZE];
1710 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1711 DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1712 eth_dev->data->port_id, ifname);
1714 DRV_LOG(DEBUG, "port %u ifname is unknown",
1715 eth_dev->data->port_id);
1718 /* Get actual MTU if possible. */
1719 err = mlx5_get_mtu(eth_dev, &priv->mtu);
1724 DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1726 /* Initialize burst functions to prevent crashes before link-up. */
1727 eth_dev->rx_pkt_burst = removed_rx_burst;
1728 eth_dev->tx_pkt_burst = removed_tx_burst;
1729 eth_dev->dev_ops = &mlx5_dev_ops;
1730 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1731 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1732 eth_dev->rx_queue_count = mlx5_rx_queue_count;
1733 /* Register MAC address. */
1734 claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1735 if (config->vf && config->vf_nl_en)
1736 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1737 mlx5_ifindex(eth_dev),
1738 eth_dev->data->mac_addrs,
1739 MLX5_MAX_MAC_ADDRESSES);
1740 priv->ctrl_flows = 0;
1741 rte_spinlock_init(&priv->flow_list_lock);
1742 TAILQ_INIT(&priv->flow_meters);
1743 priv->mtr_profile_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_PTR);
1744 if (!priv->mtr_profile_tbl)
1746 /* Hint libmlx5 to use PMD allocator for data plane resources */
1747 mlx5_glue->dv_set_context_attr(sh->ctx,
1748 MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1749 (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
1750 .alloc = &mlx5_alloc_verbs_buf,
1751 .free = &mlx5_free_verbs_buf,
1754 /* Bring Ethernet device up. */
1755 DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1756 eth_dev->data->port_id);
1757 mlx5_set_link_up(eth_dev);
1759 * Even though the interrupt handler is not installed yet,
1760 * interrupts will still trigger on the async_fd from
1761 * Verbs context returned by ibv_open_device().
1763 mlx5_link_update(eth_dev, 0);
1764 #ifdef HAVE_MLX5DV_DR_ESWITCH
1765 if (!(config->hca_attr.eswitch_manager && config->dv_flow_en &&
1766 (switch_info->representor || switch_info->master)))
1767 config->dv_esw_en = 0;
1769 config->dv_esw_en = 0;
1771 /* Detect minimal data bytes to inline. */
1772 mlx5_set_min_inline(spawn, config);
1773 /* Store device configuration on private structure. */
1774 priv->config = *config;
1775 for (i = 0; i < MLX5_FLOW_TYPE_MAXI; i++) {
1776 icfg[i].release_mem_en = !!config->reclaim_mode;
1777 if (config->reclaim_mode)
1778 icfg[i].per_core_cache = 0;
1779 priv->flows[i] = mlx5_ipool_create(&icfg[i]);
1780 if (!priv->flows[i])
1783 /* Create context for virtual machine VLAN workaround. */
1784 priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1785 if (config->dv_flow_en) {
1786 err = mlx5_alloc_shared_dr(priv);
1790 if (config->devx && config->dv_flow_en && config->dest_tir) {
1791 priv->obj_ops = devx_obj_ops;
1792 priv->obj_ops.drop_action_create =
1793 ibv_obj_ops.drop_action_create;
1794 priv->obj_ops.drop_action_destroy =
1795 ibv_obj_ops.drop_action_destroy;
1796 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1797 priv->obj_ops.txq_obj_modify = ibv_obj_ops.txq_obj_modify;
1799 if (config->dv_esw_en)
1800 priv->obj_ops.txq_obj_modify =
1801 ibv_obj_ops.txq_obj_modify;
1803 /* Use specific wrappers for Tx object. */
1804 priv->obj_ops.txq_obj_new = mlx5_os_txq_obj_new;
1805 priv->obj_ops.txq_obj_release = mlx5_os_txq_obj_release;
1806 mlx5_queue_counter_id_prepare(eth_dev);
1807 priv->obj_ops.lb_dummy_queue_create =
1808 mlx5_rxq_ibv_obj_dummy_lb_create;
1809 priv->obj_ops.lb_dummy_queue_release =
1810 mlx5_rxq_ibv_obj_dummy_lb_release;
1812 priv->obj_ops = ibv_obj_ops;
1814 priv->drop_queue.hrxq = mlx5_drop_action_create(eth_dev);
1815 if (!priv->drop_queue.hrxq)
1817 /* Supported Verbs flow priority number detection. */
1818 err = mlx5_flow_discover_priorities(eth_dev);
1823 priv->config.flow_prio = err;
1824 if (!priv->config.dv_esw_en &&
1825 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1826 DRV_LOG(WARNING, "metadata mode %u is not supported "
1827 "(no E-Switch)", priv->config.dv_xmeta_en);
1828 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1830 mlx5_set_metadata_mask(eth_dev);
1831 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1832 !priv->sh->dv_regc0_mask) {
1833 DRV_LOG(ERR, "metadata mode %u is not supported "
1834 "(no metadata reg_c[0] is available)",
1835 priv->config.dv_xmeta_en);
1839 priv->hrxqs = mlx5_list_create("hrxq", eth_dev, true,
1840 mlx5_hrxq_create_cb,
1842 mlx5_hrxq_remove_cb,
1844 mlx5_hrxq_clone_free_cb);
1847 rte_rwlock_init(&priv->ind_tbls_lock);
1848 /* Query availability of metadata reg_c's. */
1849 err = mlx5_flow_discover_mreg_c(eth_dev);
1854 if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1856 "port %u extensive metadata register is not supported",
1857 eth_dev->data->port_id);
1858 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1859 DRV_LOG(ERR, "metadata mode %u is not supported "
1860 "(no metadata registers available)",
1861 priv->config.dv_xmeta_en);
1866 if (priv->config.dv_flow_en &&
1867 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1868 mlx5_flow_ext_mreg_supported(eth_dev) &&
1869 priv->sh->dv_regc0_mask) {
1870 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1871 MLX5_FLOW_MREG_HTABLE_SZ,
1872 false, true, eth_dev,
1873 flow_dv_mreg_create_cb,
1874 flow_dv_mreg_match_cb,
1875 flow_dv_mreg_remove_cb,
1876 flow_dv_mreg_clone_cb,
1877 flow_dv_mreg_clone_free_cb);
1878 if (!priv->mreg_cp_tbl) {
1883 rte_spinlock_init(&priv->shared_act_sl);
1884 mlx5_flow_counter_mode_config(eth_dev);
1885 if (priv->config.dv_flow_en)
1886 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
1890 if (priv->mreg_cp_tbl)
1891 mlx5_hlist_destroy(priv->mreg_cp_tbl);
1893 mlx5_os_free_shared_dr(priv);
1894 if (priv->nl_socket_route >= 0)
1895 close(priv->nl_socket_route);
1896 if (priv->nl_socket_rdma >= 0)
1897 close(priv->nl_socket_rdma);
1898 if (priv->vmwa_context)
1899 mlx5_vlan_vmwa_exit(priv->vmwa_context);
1900 if (eth_dev && priv->drop_queue.hrxq)
1901 mlx5_drop_action_destroy(eth_dev);
1902 if (priv->mtr_profile_tbl)
1903 mlx5_l3t_destroy(priv->mtr_profile_tbl);
1905 claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1907 mlx5_list_destroy(priv->hrxqs);
1909 if (eth_dev != NULL)
1910 eth_dev->data->dev_private = NULL;
1912 if (eth_dev != NULL) {
1913 /* mac_addrs must not be freed alone because part of
1916 eth_dev->data->mac_addrs = NULL;
1917 rte_eth_dev_release_port(eth_dev);
1920 mlx5_free_shared_dev_ctx(sh);
1921 MLX5_ASSERT(err > 0);
1927 * Comparison callback to sort device data.
1929 * This is meant to be used with qsort().
1932 * Pointer to pointer to first data object.
1934 * Pointer to pointer to second data object.
1937 * 0 if both objects are equal, less than 0 if the first argument is less
1938 * than the second, greater than 0 otherwise.
1941 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1943 const struct mlx5_switch_info *si_a =
1944 &((const struct mlx5_dev_spawn_data *)a)->info;
1945 const struct mlx5_switch_info *si_b =
1946 &((const struct mlx5_dev_spawn_data *)b)->info;
1949 /* Master device first. */
1950 ret = si_b->master - si_a->master;
1953 /* Then representor devices. */
1954 ret = si_b->representor - si_a->representor;
1957 /* Unidentified devices come last in no specific order. */
1958 if (!si_a->representor)
1960 /* Order representors by name. */
1961 return si_a->port_name - si_b->port_name;
1965 * Match PCI information for possible slaves of bonding device.
1967 * @param[in] ibv_dev
1968 * Pointer to Infiniband device structure.
1969 * @param[in] pci_dev
1970 * Pointer to primary PCI address structure to match.
1971 * @param[in] nl_rdma
1972 * Netlink RDMA group socket handle.
1974 * Rerepsentor owner PF index.
1975 * @param[out] bond_info
1976 * Pointer to bonding information.
1979 * negative value if no bonding device found, otherwise
1980 * positive index of slave PF in bonding.
1983 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
1984 const struct rte_pci_addr *pci_dev,
1985 int nl_rdma, uint16_t owner,
1986 struct mlx5_bond_info *bond_info)
1988 char ifname[IF_NAMESIZE + 1];
1989 unsigned int ifindex;
1991 FILE *bond_file = NULL, *file;
1996 * Try to get master device name. If something goes
1997 * wrong suppose the lack of kernel support and no
2000 memset(bond_info, 0, sizeof(*bond_info));
2003 if (!strstr(ibv_dev->name, "bond"))
2005 np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
2009 * The Master device might not be on the predefined
2010 * port (not on port index 1, it is not garanted),
2011 * we have to scan all Infiniband device port and
2014 for (i = 1; i <= np; ++i) {
2015 /* Check whether Infiniband port is populated. */
2016 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
2019 if (!if_indextoname(ifindex, ifname))
2021 /* Try to read bonding slave names from sysfs. */
2023 "/sys/class/net/%s/master/bonding/slaves", ifname);
2024 bond_file = fopen(slaves, "r");
2030 /* Use safe format to check maximal buffer length. */
2031 MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
2032 while (fscanf(bond_file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
2033 char tmp_str[IF_NAMESIZE + 32];
2034 struct rte_pci_addr pci_addr;
2035 struct mlx5_switch_info info;
2037 /* Process slave interface names in the loop. */
2038 snprintf(tmp_str, sizeof(tmp_str),
2039 "/sys/class/net/%s", ifname);
2040 if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) {
2041 DRV_LOG(WARNING, "can not get PCI address"
2042 " for netdev \"%s\"", ifname);
2045 /* Slave interface PCI address match found. */
2046 snprintf(tmp_str, sizeof(tmp_str),
2047 "/sys/class/net/%s/phys_port_name", ifname);
2048 file = fopen(tmp_str, "rb");
2051 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
2052 if (fscanf(file, "%32s", tmp_str) == 1)
2053 mlx5_translate_port_name(tmp_str, &info);
2055 /* Only process PF ports. */
2056 if (info.name_type != MLX5_PHYS_PORT_NAME_TYPE_LEGACY &&
2057 info.name_type != MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
2059 /* Check max bonding member. */
2060 if (info.port_name >= MLX5_BOND_MAX_PORTS) {
2061 DRV_LOG(WARNING, "bonding index out of range, "
2062 "please increase MLX5_BOND_MAX_PORTS: %s",
2066 /* Match PCI address, allows BDF0+pfx or BDFx+pfx. */
2067 if (pci_dev->domain == pci_addr.domain &&
2068 pci_dev->bus == pci_addr.bus &&
2069 pci_dev->devid == pci_addr.devid &&
2070 ((pci_dev->function == 0 &&
2071 pci_dev->function + owner == pci_addr.function) ||
2072 (pci_dev->function == owner &&
2073 pci_addr.function == owner)))
2074 pf = info.port_name;
2076 snprintf(tmp_str, sizeof(tmp_str),
2077 "/sys/class/net/%s/ifindex", ifname);
2078 file = fopen(tmp_str, "rb");
2081 ret = fscanf(file, "%u", &ifindex);
2085 /* Save bonding info. */
2086 strncpy(bond_info->ports[info.port_name].ifname, ifname,
2087 sizeof(bond_info->ports[0].ifname));
2088 bond_info->ports[info.port_name].pci_addr = pci_addr;
2089 bond_info->ports[info.port_name].ifindex = ifindex;
2090 bond_info->n_port++;
2093 /* Get bond interface info */
2094 ret = mlx5_sysfs_bond_info(ifindex, &bond_info->ifindex,
2097 DRV_LOG(ERR, "unable to get bond info: %s",
2098 strerror(rte_errno));
2100 DRV_LOG(INFO, "PF device %u, bond device %u(%s)",
2101 ifindex, bond_info->ifindex, bond_info->ifname);
2107 * Register a PCI device within bonding.
2109 * This function spawns Ethernet devices out of a given PCI device and
2110 * bonding owner PF index.
2112 * @param[in] pci_dev
2113 * PCI device information.
2114 * @param[in] req_eth_da
2115 * Requested ethdev device argument.
2116 * @param[in] owner_id
2117 * Requested owner PF port ID within bonding device, default to 0.
2120 * 0 on success, a negative errno value otherwise and rte_errno is set.
2123 mlx5_os_pci_probe_pf(struct rte_pci_device *pci_dev,
2124 struct rte_eth_devargs *req_eth_da,
2127 struct ibv_device **ibv_list;
2129 * Number of found IB Devices matching with requested PCI BDF.
2130 * nd != 1 means there are multiple IB devices over the same
2131 * PCI device and we have representors and master.
2133 unsigned int nd = 0;
2135 * Number of found IB device Ports. nd = 1 and np = 1..n means
2136 * we have the single multiport IB device, and there may be
2137 * representors attached to some of found ports.
2139 unsigned int np = 0;
2141 * Number of DPDK ethernet devices to Spawn - either over
2142 * multiple IB devices or multiple ports of single IB device.
2143 * Actually this is the number of iterations to spawn.
2145 unsigned int ns = 0;
2148 * < 0 - no bonding device (single one)
2149 * >= 0 - bonding device (value is slave PF index)
2152 struct mlx5_dev_spawn_data *list = NULL;
2153 struct mlx5_dev_config dev_config;
2154 unsigned int dev_config_vf;
2155 struct rte_eth_devargs eth_da = *req_eth_da;
2156 struct rte_pci_addr owner_pci = pci_dev->addr; /* Owner PF. */
2157 struct mlx5_bond_info bond_info;
2160 if (rte_eal_process_type() == RTE_PROC_PRIMARY)
2161 mlx5_pmd_socket_init();
2162 ret = mlx5_init_once();
2164 DRV_LOG(ERR, "unable to init PMD global data: %s",
2165 strerror(rte_errno));
2169 ibv_list = mlx5_glue->get_device_list(&ret);
2171 rte_errno = errno ? errno : ENOSYS;
2172 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
2176 * First scan the list of all Infiniband devices to find
2177 * matching ones, gathering into the list.
2179 struct ibv_device *ibv_match[ret + 1];
2180 int nl_route = mlx5_nl_init(NETLINK_ROUTE);
2181 int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
2185 struct rte_pci_addr pci_addr;
2187 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
2188 bd = mlx5_device_bond_pci_match
2189 (ibv_list[ret], &owner_pci, nl_rdma, owner_id,
2193 * Bonding device detected. Only one match is allowed,
2194 * the bonding is supported over multi-port IB device,
2195 * there should be no matches on representor PCI
2196 * functions or non VF LAG bonding devices with
2197 * specified address.
2201 "multiple PCI match on bonding device"
2202 "\"%s\" found", ibv_list[ret]->name);
2207 /* Amend owner pci address if owner PF ID specified. */
2208 if (eth_da.nb_representor_ports)
2209 owner_pci.function += owner_id;
2210 DRV_LOG(INFO, "PCI information matches for"
2211 " slave %d bonding device \"%s\"",
2212 bd, ibv_list[ret]->name);
2213 ibv_match[nd++] = ibv_list[ret];
2216 /* Bonding device not found. */
2217 if (mlx5_dev_to_pci_addr
2218 (ibv_list[ret]->ibdev_path, &pci_addr))
2220 if (owner_pci.domain != pci_addr.domain ||
2221 owner_pci.bus != pci_addr.bus ||
2222 owner_pci.devid != pci_addr.devid ||
2223 owner_pci.function != pci_addr.function)
2225 DRV_LOG(INFO, "PCI information matches for device \"%s\"",
2226 ibv_list[ret]->name);
2227 ibv_match[nd++] = ibv_list[ret];
2230 ibv_match[nd] = NULL;
2232 /* No device matches, just complain and bail out. */
2234 "no Verbs device matches PCI device " PCI_PRI_FMT ","
2235 " are kernel drivers loaded?",
2236 owner_pci.domain, owner_pci.bus,
2237 owner_pci.devid, owner_pci.function);
2244 * Found single matching device may have multiple ports.
2245 * Each port may be representor, we have to check the port
2246 * number and check the representors existence.
2249 np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
2251 DRV_LOG(WARNING, "can not get IB device \"%s\""
2252 " ports number", ibv_match[0]->name);
2253 if (bd >= 0 && !np) {
2254 DRV_LOG(ERR, "can not get ports"
2255 " for bonding device");
2261 #ifndef HAVE_MLX5DV_DR_DEVX_PORT
2264 * This may happen if there is VF LAG kernel support and
2265 * application is compiled with older rdma_core library.
2268 "No kernel/verbs support for VF LAG bonding found.");
2269 rte_errno = ENOTSUP;
2275 * Now we can determine the maximal
2276 * amount of devices to be spawned.
2278 list = mlx5_malloc(MLX5_MEM_ZERO,
2279 sizeof(struct mlx5_dev_spawn_data) *
2281 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
2283 DRV_LOG(ERR, "spawn data array allocation failure");
2288 if (bd >= 0 || np > 1) {
2290 * Single IB device with multiple ports found,
2291 * it may be E-Switch master device and representors.
2292 * We have to perform identification through the ports.
2294 MLX5_ASSERT(nl_rdma >= 0);
2295 MLX5_ASSERT(ns == 0);
2296 MLX5_ASSERT(nd == 1);
2298 for (i = 1; i <= np; ++i) {
2299 list[ns].bond_info = &bond_info;
2300 list[ns].max_port = np;
2301 list[ns].phys_port = i;
2302 list[ns].phys_dev = ibv_match[0];
2303 list[ns].eth_dev = NULL;
2304 list[ns].pci_dev = pci_dev;
2305 list[ns].pf_bond = bd;
2306 list[ns].ifindex = mlx5_nl_ifindex
2308 mlx5_os_get_dev_device_name
2309 (list[ns].phys_dev), i);
2310 if (!list[ns].ifindex) {
2312 * No network interface index found for the
2313 * specified port, it means there is no
2314 * representor on this port. It's OK,
2315 * there can be disabled ports, for example
2316 * if sriov_numvfs < sriov_totalvfs.
2322 ret = mlx5_nl_switch_info
2326 if (ret || (!list[ns].info.representor &&
2327 !list[ns].info.master)) {
2329 * We failed to recognize representors with
2330 * Netlink, let's try to perform the task
2333 ret = mlx5_sysfs_switch_info
2337 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
2338 if (!ret && bd >= 0) {
2339 switch (list[ns].info.name_type) {
2340 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
2341 if (list[ns].info.port_name == bd)
2344 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
2346 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
2348 case MLX5_PHYS_PORT_NAME_TYPE_PFSF:
2349 if (list[ns].info.pf_num == bd)
2358 if (!ret && (list[ns].info.representor ^
2359 list[ns].info.master))
2364 "unable to recognize master/representors"
2365 " on the IB device with multiple ports");
2372 * The existence of several matching entries (nd > 1) means
2373 * port representors have been instantiated. No existing Verbs
2374 * call nor sysfs entries can tell them apart, this can only
2375 * be done through Netlink calls assuming kernel drivers are
2376 * recent enough to support them.
2378 * In the event of identification failure through Netlink,
2379 * try again through sysfs, then:
2381 * 1. A single IB device matches (nd == 1) with single
2382 * port (np=0/1) and is not a representor, assume
2383 * no switch support.
2385 * 2. Otherwise no safe assumptions can be made;
2386 * complain louder and bail out.
2388 for (i = 0; i != nd; ++i) {
2389 memset(&list[ns].info, 0, sizeof(list[ns].info));
2390 list[ns].bond_info = NULL;
2391 list[ns].max_port = 1;
2392 list[ns].phys_port = 1;
2393 list[ns].phys_dev = ibv_match[i];
2394 list[ns].eth_dev = NULL;
2395 list[ns].pci_dev = pci_dev;
2396 list[ns].pf_bond = -1;
2397 list[ns].ifindex = 0;
2399 list[ns].ifindex = mlx5_nl_ifindex
2401 mlx5_os_get_dev_device_name
2402 (list[ns].phys_dev), 1);
2403 if (!list[ns].ifindex) {
2404 char ifname[IF_NAMESIZE];
2407 * Netlink failed, it may happen with old
2408 * ib_core kernel driver (before 4.16).
2409 * We can assume there is old driver because
2410 * here we are processing single ports IB
2411 * devices. Let's try sysfs to retrieve
2412 * the ifindex. The method works for
2413 * master device only.
2417 * Multiple devices found, assume
2418 * representors, can not distinguish
2419 * master/representor and retrieve
2420 * ifindex via sysfs.
2424 ret = mlx5_get_ifname_sysfs
2425 (ibv_match[i]->ibdev_path, ifname);
2428 if_nametoindex(ifname);
2429 if (!list[ns].ifindex) {
2431 * No network interface index found
2432 * for the specified device, it means
2433 * there it is neither representor
2441 ret = mlx5_nl_switch_info
2445 if (ret || (!list[ns].info.representor &&
2446 !list[ns].info.master)) {
2448 * We failed to recognize representors with
2449 * Netlink, let's try to perform the task
2452 ret = mlx5_sysfs_switch_info
2456 if (!ret && (list[ns].info.representor ^
2457 list[ns].info.master)) {
2459 } else if ((nd == 1) &&
2460 !list[ns].info.representor &&
2461 !list[ns].info.master) {
2463 * Single IB device with
2464 * one physical port and
2465 * attached network device.
2466 * May be SRIOV is not enabled
2467 * or there is no representors.
2469 DRV_LOG(INFO, "no E-Switch support detected");
2476 "unable to recognize master/representors"
2477 " on the multiple IB devices");
2483 * New kernels may add the switch_id attribute for the case
2484 * there is no E-Switch and we wrongly recognized the
2485 * only device as master. Override this if there is the
2486 * single device with single port and new device name
2490 list[0].info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) {
2491 list[0].info.master = 0;
2492 list[0].info.representor = 0;
2497 * Sort list to probe devices in natural order for users convenience
2498 * (i.e. master first, then representors from lowest to highest ID).
2500 qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
2501 /* Device specific configuration. */
2502 switch (pci_dev->id.device_id) {
2503 case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
2504 case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
2505 case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
2506 case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
2507 case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
2508 case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
2509 case PCI_DEVICE_ID_MELLANOX_CONNECTXVF:
2516 if (eth_da.type != RTE_ETH_REPRESENTOR_NONE) {
2517 /* Set devargs default values. */
2518 if (eth_da.nb_mh_controllers == 0) {
2519 eth_da.nb_mh_controllers = 1;
2520 eth_da.mh_controllers[0] = 0;
2522 if (eth_da.nb_ports == 0 && ns > 0) {
2523 if (list[0].pf_bond >= 0 && list[0].info.representor)
2524 DRV_LOG(WARNING, "Representor on Bonding device should use pf#vf# syntax: %s",
2525 pci_dev->device.devargs->args);
2526 eth_da.nb_ports = 1;
2527 eth_da.ports[0] = list[0].info.pf_num;
2529 if (eth_da.nb_representor_ports == 0) {
2530 eth_da.nb_representor_ports = 1;
2531 eth_da.representor_ports[0] = 0;
2534 for (i = 0; i != ns; ++i) {
2537 /* Default configuration. */
2538 memset(&dev_config, 0, sizeof(struct mlx5_dev_config));
2539 dev_config.vf = dev_config_vf;
2540 dev_config.mps = MLX5_ARG_UNSET;
2541 dev_config.dbnc = MLX5_ARG_UNSET;
2542 dev_config.rx_vec_en = 1;
2543 dev_config.txq_inline_max = MLX5_ARG_UNSET;
2544 dev_config.txq_inline_min = MLX5_ARG_UNSET;
2545 dev_config.txq_inline_mpw = MLX5_ARG_UNSET;
2546 dev_config.txqs_inline = MLX5_ARG_UNSET;
2547 dev_config.vf_nl_en = 1;
2548 dev_config.mr_ext_memseg_en = 1;
2549 dev_config.mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN;
2550 dev_config.mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS;
2551 dev_config.dv_esw_en = 1;
2552 dev_config.dv_flow_en = 1;
2553 dev_config.decap_en = 1;
2554 dev_config.log_hp_size = MLX5_ARG_UNSET;
2555 dev_config.allow_duplicate_pattern = 1;
2556 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
2560 if (!list[i].eth_dev) {
2561 if (rte_errno != EBUSY && rte_errno != EEXIST)
2563 /* Device is disabled or already spawned. Ignore it. */
2566 restore = list[i].eth_dev->data->dev_flags;
2567 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
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 * DPDK callback to register a PCI device.
2615 * This function spawns Ethernet devices out of a given PCI device.
2617 * @param[in] pci_drv
2618 * PCI driver structure (mlx5_driver).
2619 * @param[in] pci_dev
2620 * PCI device information.
2623 * 0 on success, a negative errno value otherwise and rte_errno is set.
2626 mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2627 struct rte_pci_device *pci_dev)
2629 struct rte_eth_devargs eth_da = { .type = RTE_ETH_REPRESENTOR_NONE };
2633 if (pci_dev->device.devargs) {
2634 /* Parse representor information from device argument. */
2635 if (pci_dev->device.devargs->cls_str)
2636 ret = rte_eth_devargs_parse
2637 (pci_dev->device.devargs->cls_str, ð_da);
2639 DRV_LOG(ERR, "failed to parse device arguments: %s",
2640 pci_dev->device.devargs->cls_str);
2643 if (eth_da.type == RTE_ETH_REPRESENTOR_NONE) {
2644 /* Support legacy device argument */
2645 ret = rte_eth_devargs_parse
2646 (pci_dev->device.devargs->args, ð_da);
2648 DRV_LOG(ERR, "failed to parse device arguments: %s",
2649 pci_dev->device.devargs->args);
2655 if (eth_da.nb_ports > 0) {
2656 /* Iterate all port if devargs pf is range: "pf[0-1]vf[...]". */
2657 for (p = 0; p < eth_da.nb_ports; p++)
2658 ret = mlx5_os_pci_probe_pf(pci_dev, ð_da,
2661 ret = mlx5_os_pci_probe_pf(pci_dev, ð_da, 0);
2667 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
2672 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2673 /* Get environment variable to store. */
2674 env = getenv(MLX5_SHUT_UP_BF);
2675 value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
2676 if (config->dbnc == MLX5_ARG_UNSET)
2677 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
2679 setenv(MLX5_SHUT_UP_BF,
2680 config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
2685 mlx5_restore_doorbell_mapping_env(int value)
2687 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2688 /* Restore the original environment variable state. */
2689 if (value == MLX5_ARG_UNSET)
2690 unsetenv(MLX5_SHUT_UP_BF);
2692 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
2696 * Extract pdn of PD object using DV API.
2699 * Pointer to the verbs PD object.
2701 * Pointer to the PD object number variable.
2704 * 0 on success, error value otherwise.
2707 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
2709 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
2710 struct mlx5dv_obj obj;
2711 struct mlx5dv_pd pd_info;
2715 obj.pd.out = &pd_info;
2716 ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
2718 DRV_LOG(DEBUG, "Fail to get PD object info");
2727 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
2731 * Function API to open IB device.
2733 * This function calls the Linux glue APIs to open a device.
2736 * Pointer to the IB device attributes (name, port, etc).
2737 * @param[out] config
2738 * Pointer to device configuration structure.
2740 * Pointer to shared context structure.
2743 * 0 on success, a positive error value otherwise.
2746 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
2747 const struct mlx5_dev_config *config,
2748 struct mlx5_dev_ctx_shared *sh)
2753 sh->numa_node = spawn->pci_dev->device.numa_node;
2754 pthread_mutex_init(&sh->txpp.mutex, NULL);
2756 * Configure environment variable "MLX5_BF_SHUT_UP"
2757 * before the device creation. The rdma_core library
2758 * checks the variable at device creation and
2759 * stores the result internally.
2761 dbmap_env = mlx5_config_doorbell_mapping_env(config);
2762 /* Try to open IB device with DV first, then usual Verbs. */
2764 sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
2767 DRV_LOG(DEBUG, "DevX is supported");
2768 /* The device is created, no need for environment. */
2769 mlx5_restore_doorbell_mapping_env(dbmap_env);
2771 /* The environment variable is still configured. */
2772 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
2773 err = errno ? errno : ENODEV;
2775 * The environment variable is not needed anymore,
2776 * all device creation attempts are completed.
2778 mlx5_restore_doorbell_mapping_env(dbmap_env);
2781 DRV_LOG(DEBUG, "DevX is NOT supported");
2784 if (!err && sh->ctx) {
2785 /* Hint libmlx5 to use PMD allocator for data plane resources */
2786 mlx5_glue->dv_set_context_attr(sh->ctx,
2787 MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
2788 (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
2789 .alloc = &mlx5_alloc_verbs_buf,
2790 .free = &mlx5_free_verbs_buf,
2798 * Install shared asynchronous device events handler.
2799 * This function is implemented to support event sharing
2800 * between multiple ports of single IB device.
2803 * Pointer to mlx5_dev_ctx_shared object.
2806 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
2811 sh->intr_handle.fd = -1;
2812 flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
2813 ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
2814 F_SETFL, flags | O_NONBLOCK);
2816 DRV_LOG(INFO, "failed to change file descriptor async event"
2819 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
2820 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
2821 if (rte_intr_callback_register(&sh->intr_handle,
2822 mlx5_dev_interrupt_handler, sh)) {
2823 DRV_LOG(INFO, "Fail to install the shared interrupt.");
2824 sh->intr_handle.fd = -1;
2828 #ifdef HAVE_IBV_DEVX_ASYNC
2829 sh->intr_handle_devx.fd = -1;
2831 (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
2832 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2834 DRV_LOG(INFO, "failed to allocate devx_comp.");
2837 flags = fcntl(devx_comp->fd, F_GETFL);
2838 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2840 DRV_LOG(INFO, "failed to change file descriptor"
2844 sh->intr_handle_devx.fd = devx_comp->fd;
2845 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
2846 if (rte_intr_callback_register(&sh->intr_handle_devx,
2847 mlx5_dev_interrupt_handler_devx, sh)) {
2848 DRV_LOG(INFO, "Fail to install the devx shared"
2850 sh->intr_handle_devx.fd = -1;
2852 #endif /* HAVE_IBV_DEVX_ASYNC */
2857 * Uninstall shared asynchronous device events handler.
2858 * This function is implemented to support event sharing
2859 * between multiple ports of single IB device.
2862 * Pointer to mlx5_dev_ctx_shared object.
2865 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
2867 if (sh->intr_handle.fd >= 0)
2868 mlx5_intr_callback_unregister(&sh->intr_handle,
2869 mlx5_dev_interrupt_handler, sh);
2870 #ifdef HAVE_IBV_DEVX_ASYNC
2871 if (sh->intr_handle_devx.fd >= 0)
2872 rte_intr_callback_unregister(&sh->intr_handle_devx,
2873 mlx5_dev_interrupt_handler_devx, sh);
2875 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
2880 * Read statistics by a named counter.
2883 * Pointer to the private device data structure.
2884 * @param[in] ctr_name
2885 * Pointer to the name of the statistic counter to read
2887 * Pointer to read statistic value.
2889 * 0 on success and stat is valud, 1 if failed to read the value
2894 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2900 if (priv->q_counters != NULL &&
2901 strcmp(ctr_name, "out_of_buffer") == 0)
2902 return mlx5_devx_cmd_queue_counter_query
2903 (priv->q_counters, 0, (uint32_t *)stat);
2904 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2905 priv->sh->ibdev_path,
2908 fd = open(path, O_RDONLY);
2910 * in switchdev the file location is not per port
2911 * but rather in <ibdev_path>/hw_counters/<file_name>.
2914 MKSTR(path1, "%s/hw_counters/%s",
2915 priv->sh->ibdev_path,
2917 fd = open(path1, O_RDONLY);
2920 char buf[21] = {'\0'};
2921 ssize_t n = read(fd, buf, sizeof(buf));
2925 *stat = strtoull(buf, NULL, 10);
2935 * Set the reg_mr and dereg_mr call backs
2937 * @param reg_mr_cb[out]
2938 * Pointer to reg_mr func
2939 * @param dereg_mr_cb[out]
2940 * Pointer to dereg_mr func
2944 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
2945 mlx5_dereg_mr_t *dereg_mr_cb)
2947 *reg_mr_cb = mlx5_mr_verbs_ops.reg_mr;
2948 *dereg_mr_cb = mlx5_mr_verbs_ops.dereg_mr;
2952 * Remove a MAC address from device
2955 * Pointer to Ethernet device structure.
2957 * MAC address index.
2960 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
2962 struct mlx5_priv *priv = dev->data->dev_private;
2963 const int vf = priv->config.vf;
2966 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
2967 mlx5_ifindex(dev), priv->mac_own,
2968 &dev->data->mac_addrs[index], index);
2972 * Adds a MAC address to the device
2975 * Pointer to Ethernet device structure.
2977 * MAC address to register.
2979 * MAC address index.
2982 * 0 on success, a negative errno value otherwise
2985 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
2988 struct mlx5_priv *priv = dev->data->dev_private;
2989 const int vf = priv->config.vf;
2993 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
2994 mlx5_ifindex(dev), priv->mac_own,
3000 * Modify a VF MAC address
3003 * Pointer to device private data.
3005 * MAC address to modify into.
3007 * Net device interface index
3012 * 0 on success, a negative errno value otherwise
3015 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
3016 unsigned int iface_idx,
3017 struct rte_ether_addr *mac_addr,
3020 return mlx5_nl_vf_mac_addr_modify
3021 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
3025 * Set device promiscuous mode
3028 * Pointer to Ethernet device structure.
3030 * 0 - promiscuous is disabled, otherwise - enabled
3033 * 0 on success, a negative error value otherwise
3036 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
3038 struct mlx5_priv *priv = dev->data->dev_private;
3040 return mlx5_nl_promisc(priv->nl_socket_route,
3041 mlx5_ifindex(dev), !!enable);
3045 * Set device promiscuous mode
3048 * Pointer to Ethernet device structure.
3050 * 0 - all multicase is disabled, otherwise - enabled
3053 * 0 on success, a negative error value otherwise
3056 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
3058 struct mlx5_priv *priv = dev->data->dev_private;
3060 return mlx5_nl_allmulti(priv->nl_socket_route,
3061 mlx5_ifindex(dev), !!enable);
3065 * Flush device MAC addresses
3068 * Pointer to Ethernet device structure.
3072 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev)
3074 struct mlx5_priv *priv = dev->data->dev_private;
3076 mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
3077 dev->data->mac_addrs,
3078 MLX5_MAX_MAC_ADDRESSES, priv->mac_own);