1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2015 6WIND S.A. 3 * Copyright 2020 Mellanox Technologies, Ltd 4 */ 5 6 #include <stddef.h> 7 #include <unistd.h> 8 #include <string.h> 9 #include <stdint.h> 10 #include <stdlib.h> 11 #include <errno.h> 12 #include <net/if.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/sockios.h> 15 #include <linux/ethtool.h> 16 #include <fcntl.h> 17 18 #include <rte_malloc.h> 19 #include <rte_ethdev_driver.h> 20 #include <rte_ethdev_pci.h> 21 #include <rte_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> 30 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> 37 38 #include "mlx5_defs.h" 39 #include "mlx5.h" 40 #include "mlx5_common_os.h" 41 #include "mlx5_utils.h" 42 #include "mlx5_rxtx.h" 43 #include "mlx5_autoconf.h" 44 #include "mlx5_mr.h" 45 #include "mlx5_flow.h" 46 #include "rte_pmd_mlx5.h" 47 #include "mlx5_verbs.h" 48 #include "mlx5_nl.h" 49 #include "mlx5_devx.h" 50 51 #define MLX5_TAGS_HLIST_ARRAY_SIZE 8192 52 53 #ifndef HAVE_IBV_MLX5_MOD_MPW 54 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2) 55 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3) 56 #endif 57 58 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP 59 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4) 60 #endif 61 62 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data"; 63 64 /* Spinlock for mlx5_shared_data allocation. */ 65 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER; 66 67 /* Process local data for secondary processes. */ 68 static struct mlx5_local_data mlx5_local_data; 69 70 /** 71 * Set the completion channel file descriptor interrupt as non-blocking. 72 * 73 * @param[in] rxq_obj 74 * Pointer to RQ channel object, which includes the channel fd 75 * 76 * @param[out] fd 77 * The file descriptor (representing the intetrrupt) used in this channel. 78 * 79 * @return 80 * 0 on successfully setting the fd to non-blocking, non-zero otherwise. 81 */ 82 int 83 mlx5_os_set_nonblock_channel_fd(int fd) 84 { 85 int flags; 86 87 flags = fcntl(fd, F_GETFL); 88 return fcntl(fd, F_SETFL, flags | O_NONBLOCK); 89 } 90 91 /** 92 * Get mlx5 device attributes. The glue function query_device_ex() is called 93 * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5 94 * device attributes from the glue out parameter. 95 * 96 * @param dev 97 * Pointer to ibv context. 98 * 99 * @param device_attr 100 * Pointer to mlx5 device attributes. 101 * 102 * @return 103 * 0 on success, non zero error number otherwise 104 */ 105 int 106 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr) 107 { 108 int err; 109 struct ibv_device_attr_ex attr_ex; 110 memset(device_attr, 0, sizeof(*device_attr)); 111 err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex); 112 if (err) 113 return err; 114 115 device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex; 116 device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr; 117 device_attr->max_sge = attr_ex.orig_attr.max_sge; 118 device_attr->max_cq = attr_ex.orig_attr.max_cq; 119 device_attr->max_qp = attr_ex.orig_attr.max_qp; 120 device_attr->raw_packet_caps = attr_ex.raw_packet_caps; 121 device_attr->max_rwq_indirection_table_size = 122 attr_ex.rss_caps.max_rwq_indirection_table_size; 123 device_attr->max_tso = attr_ex.tso_caps.max_tso; 124 device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts; 125 126 struct mlx5dv_context dv_attr = { .comp_mask = 0 }; 127 err = mlx5_glue->dv_query_device(ctx, &dv_attr); 128 if (err) 129 return err; 130 131 device_attr->flags = dv_attr.flags; 132 device_attr->comp_mask = dv_attr.comp_mask; 133 #ifdef HAVE_IBV_MLX5_MOD_SWP 134 device_attr->sw_parsing_offloads = 135 dv_attr.sw_parsing_caps.sw_parsing_offloads; 136 #endif 137 device_attr->min_single_stride_log_num_of_bytes = 138 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes; 139 device_attr->max_single_stride_log_num_of_bytes = 140 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes; 141 device_attr->min_single_wqe_log_num_of_strides = 142 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides; 143 device_attr->max_single_wqe_log_num_of_strides = 144 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides; 145 device_attr->stride_supported_qpts = 146 dv_attr.striding_rq_caps.supported_qpts; 147 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 148 device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps; 149 #endif 150 151 return err; 152 } 153 154 /** 155 * Verbs callback to allocate a memory. This function should allocate the space 156 * according to the size provided residing inside a huge page. 157 * Please note that all allocation must respect the alignment from libmlx5 158 * (i.e. currently rte_mem_page_size()). 159 * 160 * @param[in] size 161 * The size in bytes of the memory to allocate. 162 * @param[in] data 163 * A pointer to the callback data. 164 * 165 * @return 166 * Allocated buffer, NULL otherwise and rte_errno is set. 167 */ 168 static void * 169 mlx5_alloc_verbs_buf(size_t size, void *data) 170 { 171 struct mlx5_priv *priv = data; 172 void *ret; 173 unsigned int socket = SOCKET_ID_ANY; 174 size_t alignment = rte_mem_page_size(); 175 if (alignment == (size_t)-1) { 176 DRV_LOG(ERR, "Failed to get mem page size"); 177 rte_errno = ENOMEM; 178 return NULL; 179 } 180 181 if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) { 182 const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj; 183 184 socket = ctrl->socket; 185 } else if (priv->verbs_alloc_ctx.type == 186 MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) { 187 const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj; 188 189 socket = ctrl->socket; 190 } 191 MLX5_ASSERT(data != NULL); 192 ret = mlx5_malloc(0, size, alignment, socket); 193 if (!ret && size) 194 rte_errno = ENOMEM; 195 return ret; 196 } 197 198 /** 199 * Verbs callback to free a memory. 200 * 201 * @param[in] ptr 202 * A pointer to the memory to free. 203 * @param[in] data 204 * A pointer to the callback data. 205 */ 206 static void 207 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused) 208 { 209 MLX5_ASSERT(data != NULL); 210 mlx5_free(ptr); 211 } 212 213 /** 214 * Initialize DR related data within private structure. 215 * Routine checks the reference counter and does actual 216 * resources creation/initialization only if counter is zero. 217 * 218 * @param[in] priv 219 * Pointer to the private device data structure. 220 * 221 * @return 222 * Zero on success, positive error code otherwise. 223 */ 224 static int 225 mlx5_alloc_shared_dr(struct mlx5_priv *priv) 226 { 227 struct mlx5_dev_ctx_shared *sh = priv->sh; 228 char s[MLX5_HLIST_NAMESIZE] __rte_unused; 229 int err; 230 231 MLX5_ASSERT(sh && sh->refcnt); 232 if (sh->refcnt > 1) 233 return 0; 234 err = mlx5_alloc_table_hash_list(priv); 235 if (err) 236 goto error; 237 /* The resources below are only valid with DV support. */ 238 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 239 /* Init port id action cache list. */ 240 snprintf(s, sizeof(s), "%s_port_id_action_cache", sh->ibdev_name); 241 mlx5_cache_list_init(&sh->port_id_action_list, s, 0, sh, 242 flow_dv_port_id_create_cb, 243 flow_dv_port_id_match_cb, 244 flow_dv_port_id_remove_cb); 245 /* Init push vlan action cache list. */ 246 snprintf(s, sizeof(s), "%s_push_vlan_action_cache", sh->ibdev_name); 247 mlx5_cache_list_init(&sh->push_vlan_action_list, s, 0, sh, 248 flow_dv_push_vlan_create_cb, 249 flow_dv_push_vlan_match_cb, 250 flow_dv_push_vlan_remove_cb); 251 /* Init sample action cache list. */ 252 snprintf(s, sizeof(s), "%s_sample_action_cache", sh->ibdev_name); 253 mlx5_cache_list_init(&sh->sample_action_list, s, 0, 254 &rte_eth_devices[priv->dev_data->port_id], 255 flow_dv_sample_create_cb, 256 flow_dv_sample_match_cb, 257 flow_dv_sample_remove_cb); 258 /* Init dest array action cache list. */ 259 snprintf(s, sizeof(s), "%s_dest_array_cache", sh->ibdev_name); 260 mlx5_cache_list_init(&sh->dest_array_list, s, 0, 261 &rte_eth_devices[priv->dev_data->port_id], 262 flow_dv_dest_array_create_cb, 263 flow_dv_dest_array_match_cb, 264 flow_dv_dest_array_remove_cb); 265 /* Create tags hash list table. */ 266 snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name); 267 sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE, 0, 268 MLX5_HLIST_WRITE_MOST, 269 flow_dv_tag_create_cb, NULL, 270 flow_dv_tag_remove_cb); 271 if (!sh->tag_table) { 272 DRV_LOG(ERR, "tags with hash creation failed."); 273 err = ENOMEM; 274 goto error; 275 } 276 sh->tag_table->ctx = sh; 277 snprintf(s, sizeof(s), "%s_hdr_modify", sh->ibdev_name); 278 sh->modify_cmds = mlx5_hlist_create(s, MLX5_FLOW_HDR_MODIFY_HTABLE_SZ, 279 0, MLX5_HLIST_WRITE_MOST | 280 MLX5_HLIST_DIRECT_KEY, 281 flow_dv_modify_create_cb, 282 flow_dv_modify_match_cb, 283 flow_dv_modify_remove_cb); 284 if (!sh->modify_cmds) { 285 DRV_LOG(ERR, "hdr modify hash creation failed"); 286 err = ENOMEM; 287 goto error; 288 } 289 sh->modify_cmds->ctx = sh; 290 snprintf(s, sizeof(s), "%s_encaps_decaps", sh->ibdev_name); 291 sh->encaps_decaps = mlx5_hlist_create(s, 292 MLX5_FLOW_ENCAP_DECAP_HTABLE_SZ, 293 0, MLX5_HLIST_DIRECT_KEY | 294 MLX5_HLIST_WRITE_MOST, 295 flow_dv_encap_decap_create_cb, 296 flow_dv_encap_decap_match_cb, 297 flow_dv_encap_decap_remove_cb); 298 if (!sh->encaps_decaps) { 299 DRV_LOG(ERR, "encap decap hash creation failed"); 300 err = ENOMEM; 301 goto error; 302 } 303 sh->encaps_decaps->ctx = sh; 304 #endif 305 #ifdef HAVE_MLX5DV_DR 306 void *domain; 307 308 /* Reference counter is zero, we should initialize structures. */ 309 domain = mlx5_glue->dr_create_domain(sh->ctx, 310 MLX5DV_DR_DOMAIN_TYPE_NIC_RX); 311 if (!domain) { 312 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed"); 313 err = errno; 314 goto error; 315 } 316 sh->rx_domain = domain; 317 domain = mlx5_glue->dr_create_domain(sh->ctx, 318 MLX5DV_DR_DOMAIN_TYPE_NIC_TX); 319 if (!domain) { 320 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed"); 321 err = errno; 322 goto error; 323 } 324 sh->tx_domain = domain; 325 #ifdef HAVE_MLX5DV_DR_ESWITCH 326 if (priv->config.dv_esw_en) { 327 domain = mlx5_glue->dr_create_domain 328 (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB); 329 if (!domain) { 330 DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed"); 331 err = errno; 332 goto error; 333 } 334 sh->fdb_domain = domain; 335 sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop(); 336 } 337 #endif 338 if (!sh->tunnel_hub) 339 err = mlx5_alloc_tunnel_hub(sh); 340 if (err) { 341 DRV_LOG(ERR, "mlx5_alloc_tunnel_hub failed err=%d", err); 342 goto error; 343 } 344 if (priv->config.reclaim_mode == MLX5_RCM_AGGR) { 345 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1); 346 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1); 347 if (sh->fdb_domain) 348 mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1); 349 } 350 sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan(); 351 #endif /* HAVE_MLX5DV_DR */ 352 sh->default_miss_action = 353 mlx5_glue->dr_create_flow_action_default_miss(); 354 if (!sh->default_miss_action) 355 DRV_LOG(WARNING, "Default miss action is not supported."); 356 return 0; 357 error: 358 /* Rollback the created objects. */ 359 if (sh->rx_domain) { 360 mlx5_glue->dr_destroy_domain(sh->rx_domain); 361 sh->rx_domain = NULL; 362 } 363 if (sh->tx_domain) { 364 mlx5_glue->dr_destroy_domain(sh->tx_domain); 365 sh->tx_domain = NULL; 366 } 367 if (sh->fdb_domain) { 368 mlx5_glue->dr_destroy_domain(sh->fdb_domain); 369 sh->fdb_domain = NULL; 370 } 371 if (sh->esw_drop_action) { 372 mlx5_glue->destroy_flow_action(sh->esw_drop_action); 373 sh->esw_drop_action = NULL; 374 } 375 if (sh->pop_vlan_action) { 376 mlx5_glue->destroy_flow_action(sh->pop_vlan_action); 377 sh->pop_vlan_action = NULL; 378 } 379 if (sh->encaps_decaps) { 380 mlx5_hlist_destroy(sh->encaps_decaps); 381 sh->encaps_decaps = NULL; 382 } 383 if (sh->modify_cmds) { 384 mlx5_hlist_destroy(sh->modify_cmds); 385 sh->modify_cmds = NULL; 386 } 387 if (sh->tag_table) { 388 /* tags should be destroyed with flow before. */ 389 mlx5_hlist_destroy(sh->tag_table); 390 sh->tag_table = NULL; 391 } 392 if (sh->tunnel_hub) { 393 mlx5_release_tunnel_hub(sh, priv->dev_port); 394 sh->tunnel_hub = NULL; 395 } 396 mlx5_free_table_hash_list(priv); 397 return err; 398 } 399 400 /** 401 * Destroy DR related data within private structure. 402 * 403 * @param[in] priv 404 * Pointer to the private device data structure. 405 */ 406 void 407 mlx5_os_free_shared_dr(struct mlx5_priv *priv) 408 { 409 struct mlx5_dev_ctx_shared *sh = priv->sh; 410 411 MLX5_ASSERT(sh && sh->refcnt); 412 if (sh->refcnt > 1) 413 return; 414 #ifdef HAVE_MLX5DV_DR 415 if (sh->rx_domain) { 416 mlx5_glue->dr_destroy_domain(sh->rx_domain); 417 sh->rx_domain = NULL; 418 } 419 if (sh->tx_domain) { 420 mlx5_glue->dr_destroy_domain(sh->tx_domain); 421 sh->tx_domain = NULL; 422 } 423 #ifdef HAVE_MLX5DV_DR_ESWITCH 424 if (sh->fdb_domain) { 425 mlx5_glue->dr_destroy_domain(sh->fdb_domain); 426 sh->fdb_domain = NULL; 427 } 428 if (sh->esw_drop_action) { 429 mlx5_glue->destroy_flow_action(sh->esw_drop_action); 430 sh->esw_drop_action = NULL; 431 } 432 #endif 433 if (sh->pop_vlan_action) { 434 mlx5_glue->destroy_flow_action(sh->pop_vlan_action); 435 sh->pop_vlan_action = NULL; 436 } 437 #endif /* HAVE_MLX5DV_DR */ 438 if (sh->default_miss_action) 439 mlx5_glue->destroy_flow_action 440 (sh->default_miss_action); 441 if (sh->encaps_decaps) { 442 mlx5_hlist_destroy(sh->encaps_decaps); 443 sh->encaps_decaps = NULL; 444 } 445 if (sh->modify_cmds) { 446 mlx5_hlist_destroy(sh->modify_cmds); 447 sh->modify_cmds = NULL; 448 } 449 if (sh->tag_table) { 450 /* tags should be destroyed with flow before. */ 451 mlx5_hlist_destroy(sh->tag_table); 452 sh->tag_table = NULL; 453 } 454 if (sh->tunnel_hub) { 455 mlx5_release_tunnel_hub(sh, priv->dev_port); 456 sh->tunnel_hub = NULL; 457 } 458 mlx5_cache_list_destroy(&sh->port_id_action_list); 459 mlx5_cache_list_destroy(&sh->push_vlan_action_list); 460 mlx5_free_table_hash_list(priv); 461 } 462 463 /** 464 * Initialize shared data between primary and secondary process. 465 * 466 * A memzone is reserved by primary process and secondary processes attach to 467 * the memzone. 468 * 469 * @return 470 * 0 on success, a negative errno value otherwise and rte_errno is set. 471 */ 472 static int 473 mlx5_init_shared_data(void) 474 { 475 const struct rte_memzone *mz; 476 int ret = 0; 477 478 rte_spinlock_lock(&mlx5_shared_data_lock); 479 if (mlx5_shared_data == NULL) { 480 if (rte_eal_process_type() == RTE_PROC_PRIMARY) { 481 /* Allocate shared memory. */ 482 mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA, 483 sizeof(*mlx5_shared_data), 484 SOCKET_ID_ANY, 0); 485 if (mz == NULL) { 486 DRV_LOG(ERR, 487 "Cannot allocate mlx5 shared data"); 488 ret = -rte_errno; 489 goto error; 490 } 491 mlx5_shared_data = mz->addr; 492 memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data)); 493 rte_spinlock_init(&mlx5_shared_data->lock); 494 } else { 495 /* Lookup allocated shared memory. */ 496 mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA); 497 if (mz == NULL) { 498 DRV_LOG(ERR, 499 "Cannot attach mlx5 shared data"); 500 ret = -rte_errno; 501 goto error; 502 } 503 mlx5_shared_data = mz->addr; 504 memset(&mlx5_local_data, 0, sizeof(mlx5_local_data)); 505 } 506 } 507 error: 508 rte_spinlock_unlock(&mlx5_shared_data_lock); 509 return ret; 510 } 511 512 /** 513 * PMD global initialization. 514 * 515 * Independent from individual device, this function initializes global 516 * per-PMD data structures distinguishing primary and secondary processes. 517 * Hence, each initialization is called once per a process. 518 * 519 * @return 520 * 0 on success, a negative errno value otherwise and rte_errno is set. 521 */ 522 static int 523 mlx5_init_once(void) 524 { 525 struct mlx5_shared_data *sd; 526 struct mlx5_local_data *ld = &mlx5_local_data; 527 int ret = 0; 528 529 if (mlx5_init_shared_data()) 530 return -rte_errno; 531 sd = mlx5_shared_data; 532 MLX5_ASSERT(sd); 533 rte_spinlock_lock(&sd->lock); 534 switch (rte_eal_process_type()) { 535 case RTE_PROC_PRIMARY: 536 if (sd->init_done) 537 break; 538 LIST_INIT(&sd->mem_event_cb_list); 539 rte_rwlock_init(&sd->mem_event_rwlock); 540 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB", 541 mlx5_mr_mem_event_cb, NULL); 542 ret = mlx5_mp_init_primary(MLX5_MP_NAME, 543 mlx5_mp_os_primary_handle); 544 if (ret) 545 goto out; 546 sd->init_done = true; 547 break; 548 case RTE_PROC_SECONDARY: 549 if (ld->init_done) 550 break; 551 ret = mlx5_mp_init_secondary(MLX5_MP_NAME, 552 mlx5_mp_os_secondary_handle); 553 if (ret) 554 goto out; 555 ++sd->secondary_cnt; 556 ld->init_done = true; 557 break; 558 default: 559 break; 560 } 561 out: 562 rte_spinlock_unlock(&sd->lock); 563 return ret; 564 } 565 566 /** 567 * Create the Tx queue DevX/Verbs object. 568 * 569 * @param dev 570 * Pointer to Ethernet device. 571 * @param idx 572 * Queue index in DPDK Tx queue array. 573 * 574 * @return 575 * 0 on success, a negative errno value otherwise and rte_errno is set. 576 */ 577 static int 578 mlx5_os_txq_obj_new(struct rte_eth_dev *dev, uint16_t idx) 579 { 580 struct mlx5_priv *priv = dev->data->dev_private; 581 struct mlx5_txq_data *txq_data = (*priv->txqs)[idx]; 582 struct mlx5_txq_ctrl *txq_ctrl = 583 container_of(txq_data, struct mlx5_txq_ctrl, txq); 584 585 if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) 586 return mlx5_txq_devx_obj_new(dev, idx); 587 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET 588 if (!priv->config.dv_esw_en) 589 return mlx5_txq_devx_obj_new(dev, idx); 590 #endif 591 return mlx5_txq_ibv_obj_new(dev, idx); 592 } 593 594 /** 595 * Release an Tx DevX/verbs queue object. 596 * 597 * @param txq_obj 598 * DevX/Verbs Tx queue object. 599 */ 600 static void 601 mlx5_os_txq_obj_release(struct mlx5_txq_obj *txq_obj) 602 { 603 if (txq_obj->txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) { 604 mlx5_txq_devx_obj_release(txq_obj); 605 return; 606 } 607 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET 608 if (!txq_obj->txq_ctrl->priv->config.dv_esw_en) { 609 mlx5_txq_devx_obj_release(txq_obj); 610 return; 611 } 612 #endif 613 mlx5_txq_ibv_obj_release(txq_obj); 614 } 615 616 /** 617 * DV flow counter mode detect and config. 618 * 619 * @param dev 620 * Pointer to rte_eth_dev structure. 621 * 622 */ 623 static void 624 mlx5_flow_counter_mode_config(struct rte_eth_dev *dev __rte_unused) 625 { 626 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 627 struct mlx5_priv *priv = dev->data->dev_private; 628 struct mlx5_dev_ctx_shared *sh = priv->sh; 629 bool fallback; 630 631 #ifndef HAVE_IBV_DEVX_ASYNC 632 fallback = true; 633 #else 634 fallback = false; 635 if (!priv->config.devx || !priv->config.dv_flow_en || 636 !priv->config.hca_attr.flow_counters_dump || 637 !(priv->config.hca_attr.flow_counter_bulk_alloc_bitmap & 0x4) || 638 (mlx5_flow_dv_discover_counter_offset_support(dev) == -ENOTSUP)) 639 fallback = true; 640 #endif 641 if (fallback) 642 DRV_LOG(INFO, "Use fall-back DV counter management. Flow " 643 "counter dump:%d, bulk_alloc_bitmap:0x%hhx.", 644 priv->config.hca_attr.flow_counters_dump, 645 priv->config.hca_attr.flow_counter_bulk_alloc_bitmap); 646 /* Initialize fallback mode only on the port initializes sh. */ 647 if (sh->refcnt == 1) 648 sh->cmng.counter_fallback = fallback; 649 else if (fallback != sh->cmng.counter_fallback) 650 DRV_LOG(WARNING, "Port %d in sh has different fallback mode " 651 "with others:%d.", PORT_ID(priv), fallback); 652 #endif 653 } 654 655 /** 656 * Spawn an Ethernet device from Verbs information. 657 * 658 * @param dpdk_dev 659 * Backing DPDK device. 660 * @param spawn 661 * Verbs device parameters (name, port, switch_info) to spawn. 662 * @param config 663 * Device configuration parameters. 664 * 665 * @return 666 * A valid Ethernet device object on success, NULL otherwise and rte_errno 667 * is set. The following errors are defined: 668 * 669 * EBUSY: device is not supposed to be spawned. 670 * EEXIST: device is already spawned 671 */ 672 static struct rte_eth_dev * 673 mlx5_dev_spawn(struct rte_device *dpdk_dev, 674 struct mlx5_dev_spawn_data *spawn, 675 struct mlx5_dev_config *config) 676 { 677 const struct mlx5_switch_info *switch_info = &spawn->info; 678 struct mlx5_dev_ctx_shared *sh = NULL; 679 struct ibv_port_attr port_attr; 680 struct mlx5dv_context dv_attr = { .comp_mask = 0 }; 681 struct rte_eth_dev *eth_dev = NULL; 682 struct mlx5_priv *priv = NULL; 683 int err = 0; 684 unsigned int hw_padding = 0; 685 unsigned int mps; 686 unsigned int cqe_comp; 687 unsigned int cqe_pad = 0; 688 unsigned int tunnel_en = 0; 689 unsigned int mpls_en = 0; 690 unsigned int swp = 0; 691 unsigned int mprq = 0; 692 unsigned int mprq_min_stride_size_n = 0; 693 unsigned int mprq_max_stride_size_n = 0; 694 unsigned int mprq_min_stride_num_n = 0; 695 unsigned int mprq_max_stride_num_n = 0; 696 struct rte_ether_addr mac; 697 char name[RTE_ETH_NAME_MAX_LEN]; 698 int own_domain_id = 0; 699 uint16_t port_id; 700 unsigned int i; 701 #ifdef HAVE_MLX5DV_DR_DEVX_PORT 702 struct mlx5dv_devx_port devx_port = { .comp_mask = 0 }; 703 #endif 704 705 /* Determine if this port representor is supposed to be spawned. */ 706 if (switch_info->representor && dpdk_dev->devargs) { 707 struct rte_eth_devargs eth_da; 708 709 err = rte_eth_devargs_parse(dpdk_dev->devargs->args, ð_da); 710 if (err) { 711 rte_errno = -err; 712 DRV_LOG(ERR, "failed to process device arguments: %s", 713 strerror(rte_errno)); 714 return NULL; 715 } 716 for (i = 0; i < eth_da.nb_representor_ports; ++i) 717 if (eth_da.representor_ports[i] == 718 (uint16_t)switch_info->port_name) 719 break; 720 if (i == eth_da.nb_representor_ports) { 721 rte_errno = EBUSY; 722 return NULL; 723 } 724 } 725 /* Build device name. */ 726 if (spawn->pf_bond < 0) { 727 /* Single device. */ 728 if (!switch_info->representor) 729 strlcpy(name, dpdk_dev->name, sizeof(name)); 730 else 731 snprintf(name, sizeof(name), "%s_representor_%u", 732 dpdk_dev->name, switch_info->port_name); 733 } else { 734 /* Bonding device. */ 735 if (!switch_info->representor) 736 snprintf(name, sizeof(name), "%s_%s", 737 dpdk_dev->name, 738 mlx5_os_get_dev_device_name(spawn->phys_dev)); 739 else 740 snprintf(name, sizeof(name), "%s_%s_representor_%u", 741 dpdk_dev->name, 742 mlx5_os_get_dev_device_name(spawn->phys_dev), 743 switch_info->port_name); 744 } 745 /* check if the device is already spawned */ 746 if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) { 747 rte_errno = EEXIST; 748 return NULL; 749 } 750 DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name); 751 if (rte_eal_process_type() == RTE_PROC_SECONDARY) { 752 struct mlx5_mp_id mp_id; 753 754 eth_dev = rte_eth_dev_attach_secondary(name); 755 if (eth_dev == NULL) { 756 DRV_LOG(ERR, "can not attach rte ethdev"); 757 rte_errno = ENOMEM; 758 return NULL; 759 } 760 eth_dev->device = dpdk_dev; 761 eth_dev->dev_ops = &mlx5_os_dev_sec_ops; 762 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status; 763 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status; 764 err = mlx5_proc_priv_init(eth_dev); 765 if (err) 766 return NULL; 767 mp_id.port_id = eth_dev->data->port_id; 768 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); 769 /* Receive command fd from primary process */ 770 err = mlx5_mp_req_verbs_cmd_fd(&mp_id); 771 if (err < 0) 772 goto err_secondary; 773 /* Remap UAR for Tx queues. */ 774 err = mlx5_tx_uar_init_secondary(eth_dev, err); 775 if (err) 776 goto err_secondary; 777 /* 778 * Ethdev pointer is still required as input since 779 * the primary device is not accessible from the 780 * secondary process. 781 */ 782 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev); 783 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev); 784 return eth_dev; 785 err_secondary: 786 mlx5_dev_close(eth_dev); 787 return NULL; 788 } 789 /* 790 * Some parameters ("tx_db_nc" in particularly) are needed in 791 * advance to create dv/verbs device context. We proceed the 792 * devargs here to get ones, and later proceed devargs again 793 * to override some hardware settings. 794 */ 795 err = mlx5_args(config, dpdk_dev->devargs); 796 if (err) { 797 err = rte_errno; 798 DRV_LOG(ERR, "failed to process device arguments: %s", 799 strerror(rte_errno)); 800 goto error; 801 } 802 if (config->dv_miss_info) { 803 if (switch_info->master || switch_info->representor) 804 config->dv_xmeta_en = MLX5_XMETA_MODE_META16; 805 } 806 mlx5_malloc_mem_select(config->sys_mem_en); 807 sh = mlx5_alloc_shared_dev_ctx(spawn, config); 808 if (!sh) 809 return NULL; 810 config->devx = sh->devx; 811 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR 812 config->dest_tir = 1; 813 #endif 814 #ifdef HAVE_IBV_MLX5_MOD_SWP 815 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP; 816 #endif 817 /* 818 * Multi-packet send is supported by ConnectX-4 Lx PF as well 819 * as all ConnectX-5 devices. 820 */ 821 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 822 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS; 823 #endif 824 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT 825 dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ; 826 #endif 827 mlx5_glue->dv_query_device(sh->ctx, &dv_attr); 828 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) { 829 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) { 830 DRV_LOG(DEBUG, "enhanced MPW is supported"); 831 mps = MLX5_MPW_ENHANCED; 832 } else { 833 DRV_LOG(DEBUG, "MPW is supported"); 834 mps = MLX5_MPW; 835 } 836 } else { 837 DRV_LOG(DEBUG, "MPW isn't supported"); 838 mps = MLX5_MPW_DISABLED; 839 } 840 #ifdef HAVE_IBV_MLX5_MOD_SWP 841 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP) 842 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads; 843 DRV_LOG(DEBUG, "SWP support: %u", swp); 844 #endif 845 config->swp = !!swp; 846 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT 847 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) { 848 struct mlx5dv_striding_rq_caps mprq_caps = 849 dv_attr.striding_rq_caps; 850 851 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d", 852 mprq_caps.min_single_stride_log_num_of_bytes); 853 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d", 854 mprq_caps.max_single_stride_log_num_of_bytes); 855 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d", 856 mprq_caps.min_single_wqe_log_num_of_strides); 857 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d", 858 mprq_caps.max_single_wqe_log_num_of_strides); 859 DRV_LOG(DEBUG, "\tsupported_qpts: %d", 860 mprq_caps.supported_qpts); 861 DRV_LOG(DEBUG, "device supports Multi-Packet RQ"); 862 mprq = 1; 863 mprq_min_stride_size_n = 864 mprq_caps.min_single_stride_log_num_of_bytes; 865 mprq_max_stride_size_n = 866 mprq_caps.max_single_stride_log_num_of_bytes; 867 mprq_min_stride_num_n = 868 mprq_caps.min_single_wqe_log_num_of_strides; 869 mprq_max_stride_num_n = 870 mprq_caps.max_single_wqe_log_num_of_strides; 871 } 872 #endif 873 if (RTE_CACHE_LINE_SIZE == 128 && 874 !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) 875 cqe_comp = 0; 876 else 877 cqe_comp = 1; 878 config->cqe_comp = cqe_comp; 879 #ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD 880 /* Whether device supports 128B Rx CQE padding. */ 881 cqe_pad = RTE_CACHE_LINE_SIZE == 128 && 882 (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD); 883 #endif 884 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT 885 if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) { 886 tunnel_en = ((dv_attr.tunnel_offloads_caps & 887 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) && 888 (dv_attr.tunnel_offloads_caps & 889 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) && 890 (dv_attr.tunnel_offloads_caps & 891 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE)); 892 } 893 DRV_LOG(DEBUG, "tunnel offloading is %ssupported", 894 tunnel_en ? "" : "not "); 895 #else 896 DRV_LOG(WARNING, 897 "tunnel offloading disabled due to old OFED/rdma-core version"); 898 #endif 899 config->tunnel_en = tunnel_en; 900 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT 901 mpls_en = ((dv_attr.tunnel_offloads_caps & 902 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) && 903 (dv_attr.tunnel_offloads_caps & 904 MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP)); 905 DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported", 906 mpls_en ? "" : "not "); 907 #else 908 DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to" 909 " old OFED/rdma-core version or firmware configuration"); 910 #endif 911 config->mpls_en = mpls_en; 912 /* Check port status. */ 913 err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr); 914 if (err) { 915 DRV_LOG(ERR, "port query failed: %s", strerror(err)); 916 goto error; 917 } 918 if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) { 919 DRV_LOG(ERR, "port is not configured in Ethernet mode"); 920 err = EINVAL; 921 goto error; 922 } 923 if (port_attr.state != IBV_PORT_ACTIVE) 924 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)", 925 mlx5_glue->port_state_str(port_attr.state), 926 port_attr.state); 927 /* Allocate private eth device data. */ 928 priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE, 929 sizeof(*priv), 930 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY); 931 if (priv == NULL) { 932 DRV_LOG(ERR, "priv allocation failure"); 933 err = ENOMEM; 934 goto error; 935 } 936 priv->sh = sh; 937 priv->dev_port = spawn->phys_port; 938 priv->pci_dev = spawn->pci_dev; 939 priv->mtu = RTE_ETHER_MTU; 940 priv->mp_id.port_id = port_id; 941 strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN); 942 /* Some internal functions rely on Netlink sockets, open them now. */ 943 priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA); 944 priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE); 945 priv->representor = !!switch_info->representor; 946 priv->master = !!switch_info->master; 947 priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID; 948 priv->vport_meta_tag = 0; 949 priv->vport_meta_mask = 0; 950 priv->pf_bond = spawn->pf_bond; 951 #ifdef HAVE_MLX5DV_DR_DEVX_PORT 952 /* 953 * The DevX port query API is implemented. E-Switch may use 954 * either vport or reg_c[0] metadata register to match on 955 * vport index. The engaged part of metadata register is 956 * defined by mask. 957 */ 958 if (switch_info->representor || switch_info->master) { 959 devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT | 960 MLX5DV_DEVX_PORT_MATCH_REG_C_0; 961 err = mlx5_glue->devx_port_query(sh->ctx, spawn->phys_port, 962 &devx_port); 963 if (err) { 964 DRV_LOG(WARNING, 965 "can't query devx port %d on device %s", 966 spawn->phys_port, 967 mlx5_os_get_dev_device_name(spawn->phys_dev)); 968 devx_port.comp_mask = 0; 969 } 970 } 971 if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) { 972 priv->vport_meta_tag = devx_port.reg_c_0.value; 973 priv->vport_meta_mask = devx_port.reg_c_0.mask; 974 if (!priv->vport_meta_mask) { 975 DRV_LOG(ERR, "vport zero mask for port %d" 976 " on bonding device %s", 977 spawn->phys_port, 978 mlx5_os_get_dev_device_name 979 (spawn->phys_dev)); 980 err = ENOTSUP; 981 goto error; 982 } 983 if (priv->vport_meta_tag & ~priv->vport_meta_mask) { 984 DRV_LOG(ERR, "invalid vport tag for port %d" 985 " on bonding device %s", 986 spawn->phys_port, 987 mlx5_os_get_dev_device_name 988 (spawn->phys_dev)); 989 err = ENOTSUP; 990 goto error; 991 } 992 } 993 if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) { 994 priv->vport_id = devx_port.vport_num; 995 } else if (spawn->pf_bond >= 0) { 996 DRV_LOG(ERR, "can't deduce vport index for port %d" 997 " on bonding device %s", 998 spawn->phys_port, 999 mlx5_os_get_dev_device_name(spawn->phys_dev)); 1000 err = ENOTSUP; 1001 goto error; 1002 } else { 1003 /* Suppose vport index in compatible way. */ 1004 priv->vport_id = switch_info->representor ? 1005 switch_info->port_name + 1 : -1; 1006 } 1007 #else 1008 /* 1009 * Kernel/rdma_core support single E-Switch per PF configurations 1010 * only and vport_id field contains the vport index for 1011 * associated VF, which is deduced from representor port name. 1012 * For example, let's have the IB device port 10, it has 1013 * attached network device eth0, which has port name attribute 1014 * pf0vf2, we can deduce the VF number as 2, and set vport index 1015 * as 3 (2+1). This assigning schema should be changed if the 1016 * multiple E-Switch instances per PF configurations or/and PCI 1017 * subfunctions are added. 1018 */ 1019 priv->vport_id = switch_info->representor ? 1020 switch_info->port_name + 1 : -1; 1021 #endif 1022 /* representor_id field keeps the unmodified VF index. */ 1023 priv->representor_id = switch_info->representor ? 1024 switch_info->port_name : -1; 1025 /* 1026 * Look for sibling devices in order to reuse their switch domain 1027 * if any, otherwise allocate one. 1028 */ 1029 MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) { 1030 const struct mlx5_priv *opriv = 1031 rte_eth_devices[port_id].data->dev_private; 1032 1033 if (!opriv || 1034 opriv->sh != priv->sh || 1035 opriv->domain_id == 1036 RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) 1037 continue; 1038 priv->domain_id = opriv->domain_id; 1039 break; 1040 } 1041 if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) { 1042 err = rte_eth_switch_domain_alloc(&priv->domain_id); 1043 if (err) { 1044 err = rte_errno; 1045 DRV_LOG(ERR, "unable to allocate switch domain: %s", 1046 strerror(rte_errno)); 1047 goto error; 1048 } 1049 own_domain_id = 1; 1050 } 1051 /* Override some values set by hardware configuration. */ 1052 mlx5_args(config, dpdk_dev->devargs); 1053 err = mlx5_dev_check_sibling_config(priv, config); 1054 if (err) 1055 goto error; 1056 config->hw_csum = !!(sh->device_attr.device_cap_flags_ex & 1057 IBV_DEVICE_RAW_IP_CSUM); 1058 DRV_LOG(DEBUG, "checksum offloading is %ssupported", 1059 (config->hw_csum ? "" : "not ")); 1060 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \ 1061 !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45) 1062 DRV_LOG(DEBUG, "counters are not supported"); 1063 #endif 1064 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR) 1065 if (config->dv_flow_en) { 1066 DRV_LOG(WARNING, "DV flow is not supported"); 1067 config->dv_flow_en = 0; 1068 } 1069 #endif 1070 config->ind_table_max_size = 1071 sh->device_attr.max_rwq_indirection_table_size; 1072 /* 1073 * Remove this check once DPDK supports larger/variable 1074 * indirection tables. 1075 */ 1076 if (config->ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512) 1077 config->ind_table_max_size = ETH_RSS_RETA_SIZE_512; 1078 DRV_LOG(DEBUG, "maximum Rx indirection table size is %u", 1079 config->ind_table_max_size); 1080 config->hw_vlan_strip = !!(sh->device_attr.raw_packet_caps & 1081 IBV_RAW_PACKET_CAP_CVLAN_STRIPPING); 1082 DRV_LOG(DEBUG, "VLAN stripping is %ssupported", 1083 (config->hw_vlan_strip ? "" : "not ")); 1084 config->hw_fcs_strip = !!(sh->device_attr.raw_packet_caps & 1085 IBV_RAW_PACKET_CAP_SCATTER_FCS); 1086 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING) 1087 hw_padding = !!sh->device_attr.rx_pad_end_addr_align; 1088 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING) 1089 hw_padding = !!(sh->device_attr.device_cap_flags_ex & 1090 IBV_DEVICE_PCI_WRITE_END_PADDING); 1091 #endif 1092 if (config->hw_padding && !hw_padding) { 1093 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported"); 1094 config->hw_padding = 0; 1095 } else if (config->hw_padding) { 1096 DRV_LOG(DEBUG, "Rx end alignment padding is enabled"); 1097 } 1098 config->tso = (sh->device_attr.max_tso > 0 && 1099 (sh->device_attr.tso_supported_qpts & 1100 (1 << IBV_QPT_RAW_PACKET))); 1101 if (config->tso) 1102 config->tso_max_payload_sz = sh->device_attr.max_tso; 1103 /* 1104 * MPW is disabled by default, while the Enhanced MPW is enabled 1105 * by default. 1106 */ 1107 if (config->mps == MLX5_ARG_UNSET) 1108 config->mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED : 1109 MLX5_MPW_DISABLED; 1110 else 1111 config->mps = config->mps ? mps : MLX5_MPW_DISABLED; 1112 DRV_LOG(INFO, "%sMPS is %s", 1113 config->mps == MLX5_MPW_ENHANCED ? "enhanced " : 1114 config->mps == MLX5_MPW ? "legacy " : "", 1115 config->mps != MLX5_MPW_DISABLED ? "enabled" : "disabled"); 1116 if (config->cqe_comp && !cqe_comp) { 1117 DRV_LOG(WARNING, "Rx CQE compression isn't supported"); 1118 config->cqe_comp = 0; 1119 } 1120 if (config->cqe_pad && !cqe_pad) { 1121 DRV_LOG(WARNING, "Rx CQE padding isn't supported"); 1122 config->cqe_pad = 0; 1123 } else if (config->cqe_pad) { 1124 DRV_LOG(INFO, "Rx CQE padding is enabled"); 1125 } 1126 if (config->devx) { 1127 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config->hca_attr); 1128 if (err) { 1129 err = -err; 1130 goto error; 1131 } 1132 #ifdef HAVE_MLX5DV_DR_ACTION_FLOW_HIT 1133 if (config->hca_attr.flow_hit_aso) { 1134 sh->flow_hit_aso_en = 1; 1135 err = mlx5_flow_aso_age_mng_init(sh); 1136 if (err) { 1137 err = -err; 1138 goto error; 1139 } 1140 DRV_LOG(DEBUG, "Flow Hit ASO is supported."); 1141 } 1142 #endif /* HAVE_MLX5DV_DR_ACTION_FLOW_HIT */ 1143 /* Check relax ordering support. */ 1144 if (!haswell_broadwell_cpu) { 1145 sh->cmng.relaxed_ordering_write = 1146 config->hca_attr.relaxed_ordering_write; 1147 sh->cmng.relaxed_ordering_read = 1148 config->hca_attr.relaxed_ordering_read; 1149 } else { 1150 sh->cmng.relaxed_ordering_read = 0; 1151 sh->cmng.relaxed_ordering_write = 0; 1152 } 1153 /* Check for LRO support. */ 1154 if (config->dest_tir && config->hca_attr.lro_cap && 1155 config->dv_flow_en) { 1156 /* TBD check tunnel lro caps. */ 1157 config->lro.supported = config->hca_attr.lro_cap; 1158 DRV_LOG(DEBUG, "Device supports LRO"); 1159 /* 1160 * If LRO timeout is not configured by application, 1161 * use the minimal supported value. 1162 */ 1163 if (!config->lro.timeout) 1164 config->lro.timeout = 1165 config->hca_attr.lro_timer_supported_periods[0]; 1166 DRV_LOG(DEBUG, "LRO session timeout set to %d usec", 1167 config->lro.timeout); 1168 DRV_LOG(DEBUG, "LRO minimal size of TCP segment " 1169 "required for coalescing is %d bytes", 1170 config->hca_attr.lro_min_mss_size); 1171 } 1172 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) 1173 if (config->hca_attr.qos.sup && 1174 config->hca_attr.qos.srtcm_sup && 1175 config->dv_flow_en) { 1176 uint8_t reg_c_mask = 1177 config->hca_attr.qos.flow_meter_reg_c_ids; 1178 /* 1179 * Meter needs two REG_C's for color match and pre-sfx 1180 * flow match. Here get the REG_C for color match. 1181 * REG_C_0 and REG_C_1 is reserved for metadata feature. 1182 */ 1183 reg_c_mask &= 0xfc; 1184 if (__builtin_popcount(reg_c_mask) < 1) { 1185 priv->mtr_en = 0; 1186 DRV_LOG(WARNING, "No available register for" 1187 " meter."); 1188 } else { 1189 priv->mtr_color_reg = ffs(reg_c_mask) - 1 + 1190 REG_C_0; 1191 priv->mtr_en = 1; 1192 priv->mtr_reg_share = 1193 config->hca_attr.qos.flow_meter_reg_share; 1194 DRV_LOG(DEBUG, "The REG_C meter uses is %d", 1195 priv->mtr_color_reg); 1196 } 1197 } 1198 #endif 1199 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE) 1200 if (config->hca_attr.log_max_ft_sampler_num > 0 && 1201 config->dv_flow_en) { 1202 priv->sampler_en = 1; 1203 DRV_LOG(DEBUG, "The Sampler enabled!\n"); 1204 } else { 1205 priv->sampler_en = 0; 1206 if (!config->hca_attr.log_max_ft_sampler_num) 1207 DRV_LOG(WARNING, "No available register for" 1208 " Sampler."); 1209 else 1210 DRV_LOG(DEBUG, "DV flow is not supported!\n"); 1211 } 1212 #endif 1213 } 1214 if (config->tx_pp) { 1215 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz", 1216 config->hca_attr.dev_freq_khz); 1217 DRV_LOG(DEBUG, "Packet pacing is %ssupported", 1218 config->hca_attr.qos.packet_pacing ? "" : "not "); 1219 DRV_LOG(DEBUG, "Cross channel ops are %ssupported", 1220 config->hca_attr.cross_channel ? "" : "not "); 1221 DRV_LOG(DEBUG, "WQE index ignore is %ssupported", 1222 config->hca_attr.wqe_index_ignore ? "" : "not "); 1223 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported", 1224 config->hca_attr.non_wire_sq ? "" : "not "); 1225 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)", 1226 config->hca_attr.log_max_static_sq_wq ? "" : "not ", 1227 config->hca_attr.log_max_static_sq_wq); 1228 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported", 1229 config->hca_attr.qos.wqe_rate_pp ? "" : "not "); 1230 if (!config->devx) { 1231 DRV_LOG(ERR, "DevX is required for packet pacing"); 1232 err = ENODEV; 1233 goto error; 1234 } 1235 if (!config->hca_attr.qos.packet_pacing) { 1236 DRV_LOG(ERR, "Packet pacing is not supported"); 1237 err = ENODEV; 1238 goto error; 1239 } 1240 if (!config->hca_attr.cross_channel) { 1241 DRV_LOG(ERR, "Cross channel operations are" 1242 " required for packet pacing"); 1243 err = ENODEV; 1244 goto error; 1245 } 1246 if (!config->hca_attr.wqe_index_ignore) { 1247 DRV_LOG(ERR, "WQE index ignore feature is" 1248 " required for packet pacing"); 1249 err = ENODEV; 1250 goto error; 1251 } 1252 if (!config->hca_attr.non_wire_sq) { 1253 DRV_LOG(ERR, "Non-wire SQ feature is" 1254 " required for packet pacing"); 1255 err = ENODEV; 1256 goto error; 1257 } 1258 if (!config->hca_attr.log_max_static_sq_wq) { 1259 DRV_LOG(ERR, "Static WQE SQ feature is" 1260 " required for packet pacing"); 1261 err = ENODEV; 1262 goto error; 1263 } 1264 if (!config->hca_attr.qos.wqe_rate_pp) { 1265 DRV_LOG(ERR, "WQE rate mode is required" 1266 " for packet pacing"); 1267 err = ENODEV; 1268 goto error; 1269 } 1270 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET 1271 DRV_LOG(ERR, "DevX does not provide UAR offset," 1272 " can't create queues for packet pacing"); 1273 err = ENODEV; 1274 goto error; 1275 #endif 1276 } 1277 if (config->devx) { 1278 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)]; 1279 1280 err = config->hca_attr.access_register_user ? 1281 mlx5_devx_cmd_register_read 1282 (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0, 1283 reg, MLX5_ST_SZ_DW(register_mtutc)) : ENOTSUP; 1284 if (!err) { 1285 uint32_t ts_mode; 1286 1287 /* MTUTC register is read successfully. */ 1288 ts_mode = MLX5_GET(register_mtutc, reg, 1289 time_stamp_mode); 1290 if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME) 1291 config->rt_timestamp = 1; 1292 } else { 1293 /* Kernel does not support register reading. */ 1294 if (config->hca_attr.dev_freq_khz == 1295 (NS_PER_S / MS_PER_S)) 1296 config->rt_timestamp = 1; 1297 } 1298 } 1299 /* 1300 * If HW has bug working with tunnel packet decapsulation and 1301 * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip 1302 * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore. 1303 */ 1304 if (config->hca_attr.scatter_fcs_w_decap_disable && config->decap_en) 1305 config->hw_fcs_strip = 0; 1306 DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported", 1307 (config->hw_fcs_strip ? "" : "not ")); 1308 if (config->mprq.enabled && mprq) { 1309 if (config->mprq.stride_num_n && 1310 (config->mprq.stride_num_n > mprq_max_stride_num_n || 1311 config->mprq.stride_num_n < mprq_min_stride_num_n)) { 1312 config->mprq.stride_num_n = 1313 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N, 1314 mprq_min_stride_num_n), 1315 mprq_max_stride_num_n); 1316 DRV_LOG(WARNING, 1317 "the number of strides" 1318 " for Multi-Packet RQ is out of range," 1319 " setting default value (%u)", 1320 1 << config->mprq.stride_num_n); 1321 } 1322 if (config->mprq.stride_size_n && 1323 (config->mprq.stride_size_n > mprq_max_stride_size_n || 1324 config->mprq.stride_size_n < mprq_min_stride_size_n)) { 1325 config->mprq.stride_size_n = 1326 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N, 1327 mprq_min_stride_size_n), 1328 mprq_max_stride_size_n); 1329 DRV_LOG(WARNING, 1330 "the size of a stride" 1331 " for Multi-Packet RQ is out of range," 1332 " setting default value (%u)", 1333 1 << config->mprq.stride_size_n); 1334 } 1335 config->mprq.min_stride_size_n = mprq_min_stride_size_n; 1336 config->mprq.max_stride_size_n = mprq_max_stride_size_n; 1337 } else if (config->mprq.enabled && !mprq) { 1338 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported"); 1339 config->mprq.enabled = 0; 1340 } 1341 if (config->max_dump_files_num == 0) 1342 config->max_dump_files_num = 128; 1343 eth_dev = rte_eth_dev_allocate(name); 1344 if (eth_dev == NULL) { 1345 DRV_LOG(ERR, "can not allocate rte ethdev"); 1346 err = ENOMEM; 1347 goto error; 1348 } 1349 if (priv->representor) { 1350 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR; 1351 eth_dev->data->representor_id = priv->representor_id; 1352 } 1353 /* 1354 * Store associated network device interface index. This index 1355 * is permanent throughout the lifetime of device. So, we may store 1356 * the ifindex here and use the cached value further. 1357 */ 1358 MLX5_ASSERT(spawn->ifindex); 1359 priv->if_index = spawn->ifindex; 1360 if (priv->pf_bond >= 0 && priv->master) { 1361 /* Get bond interface info */ 1362 err = mlx5_sysfs_bond_info(priv->if_index, 1363 &priv->bond_ifindex, 1364 priv->bond_name); 1365 if (err) 1366 DRV_LOG(ERR, "unable to get bond info: %s", 1367 strerror(rte_errno)); 1368 else 1369 DRV_LOG(INFO, "PF device %u, bond device %u(%s)", 1370 priv->if_index, priv->bond_ifindex, 1371 priv->bond_name); 1372 } 1373 eth_dev->data->dev_private = priv; 1374 priv->dev_data = eth_dev->data; 1375 eth_dev->data->mac_addrs = priv->mac; 1376 eth_dev->device = dpdk_dev; 1377 eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS; 1378 /* Configure the first MAC address by default. */ 1379 if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) { 1380 DRV_LOG(ERR, 1381 "port %u cannot get MAC address, is mlx5_en" 1382 " loaded? (errno: %s)", 1383 eth_dev->data->port_id, strerror(rte_errno)); 1384 err = ENODEV; 1385 goto error; 1386 } 1387 DRV_LOG(INFO, 1388 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x", 1389 eth_dev->data->port_id, 1390 mac.addr_bytes[0], mac.addr_bytes[1], 1391 mac.addr_bytes[2], mac.addr_bytes[3], 1392 mac.addr_bytes[4], mac.addr_bytes[5]); 1393 #ifdef RTE_LIBRTE_MLX5_DEBUG 1394 { 1395 char ifname[IF_NAMESIZE]; 1396 1397 if (mlx5_get_ifname(eth_dev, &ifname) == 0) 1398 DRV_LOG(DEBUG, "port %u ifname is \"%s\"", 1399 eth_dev->data->port_id, ifname); 1400 else 1401 DRV_LOG(DEBUG, "port %u ifname is unknown", 1402 eth_dev->data->port_id); 1403 } 1404 #endif 1405 /* Get actual MTU if possible. */ 1406 err = mlx5_get_mtu(eth_dev, &priv->mtu); 1407 if (err) { 1408 err = rte_errno; 1409 goto error; 1410 } 1411 DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id, 1412 priv->mtu); 1413 /* Initialize burst functions to prevent crashes before link-up. */ 1414 eth_dev->rx_pkt_burst = removed_rx_burst; 1415 eth_dev->tx_pkt_burst = removed_tx_burst; 1416 eth_dev->dev_ops = &mlx5_os_dev_ops; 1417 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status; 1418 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status; 1419 eth_dev->rx_queue_count = mlx5_rx_queue_count; 1420 /* Register MAC address. */ 1421 claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0)); 1422 if (config->vf && config->vf_nl_en) 1423 mlx5_nl_mac_addr_sync(priv->nl_socket_route, 1424 mlx5_ifindex(eth_dev), 1425 eth_dev->data->mac_addrs, 1426 MLX5_MAX_MAC_ADDRESSES); 1427 priv->flows = 0; 1428 priv->ctrl_flows = 0; 1429 rte_spinlock_init(&priv->flow_list_lock); 1430 TAILQ_INIT(&priv->flow_meters); 1431 TAILQ_INIT(&priv->flow_meter_profiles); 1432 /* Hint libmlx5 to use PMD allocator for data plane resources */ 1433 mlx5_glue->dv_set_context_attr(sh->ctx, 1434 MLX5DV_CTX_ATTR_BUF_ALLOCATORS, 1435 (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){ 1436 .alloc = &mlx5_alloc_verbs_buf, 1437 .free = &mlx5_free_verbs_buf, 1438 .data = priv, 1439 })); 1440 /* Bring Ethernet device up. */ 1441 DRV_LOG(DEBUG, "port %u forcing Ethernet interface up", 1442 eth_dev->data->port_id); 1443 mlx5_set_link_up(eth_dev); 1444 /* 1445 * Even though the interrupt handler is not installed yet, 1446 * interrupts will still trigger on the async_fd from 1447 * Verbs context returned by ibv_open_device(). 1448 */ 1449 mlx5_link_update(eth_dev, 0); 1450 #ifdef HAVE_MLX5DV_DR_ESWITCH 1451 if (!(config->hca_attr.eswitch_manager && config->dv_flow_en && 1452 (switch_info->representor || switch_info->master))) 1453 config->dv_esw_en = 0; 1454 #else 1455 config->dv_esw_en = 0; 1456 #endif 1457 /* Detect minimal data bytes to inline. */ 1458 mlx5_set_min_inline(spawn, config); 1459 /* Store device configuration on private structure. */ 1460 priv->config = *config; 1461 /* Create context for virtual machine VLAN workaround. */ 1462 priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex); 1463 if (config->dv_flow_en) { 1464 err = mlx5_alloc_shared_dr(priv); 1465 if (err) 1466 goto error; 1467 } 1468 if (config->devx && config->dv_flow_en && config->dest_tir) { 1469 priv->obj_ops = devx_obj_ops; 1470 priv->obj_ops.drop_action_create = 1471 ibv_obj_ops.drop_action_create; 1472 priv->obj_ops.drop_action_destroy = 1473 ibv_obj_ops.drop_action_destroy; 1474 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET 1475 priv->obj_ops.txq_obj_modify = ibv_obj_ops.txq_obj_modify; 1476 #else 1477 if (config->dv_esw_en) 1478 priv->obj_ops.txq_obj_modify = 1479 ibv_obj_ops.txq_obj_modify; 1480 #endif 1481 /* Use specific wrappers for Tx object. */ 1482 priv->obj_ops.txq_obj_new = mlx5_os_txq_obj_new; 1483 priv->obj_ops.txq_obj_release = mlx5_os_txq_obj_release; 1484 1485 } else { 1486 priv->obj_ops = ibv_obj_ops; 1487 } 1488 priv->drop_queue.hrxq = mlx5_drop_action_create(eth_dev); 1489 if (!priv->drop_queue.hrxq) 1490 goto error; 1491 /* Supported Verbs flow priority number detection. */ 1492 err = mlx5_flow_discover_priorities(eth_dev); 1493 if (err < 0) { 1494 err = -err; 1495 goto error; 1496 } 1497 priv->config.flow_prio = err; 1498 if (!priv->config.dv_esw_en && 1499 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) { 1500 DRV_LOG(WARNING, "metadata mode %u is not supported " 1501 "(no E-Switch)", priv->config.dv_xmeta_en); 1502 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY; 1503 } 1504 mlx5_set_metadata_mask(eth_dev); 1505 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 1506 !priv->sh->dv_regc0_mask) { 1507 DRV_LOG(ERR, "metadata mode %u is not supported " 1508 "(no metadata reg_c[0] is available)", 1509 priv->config.dv_xmeta_en); 1510 err = ENOTSUP; 1511 goto error; 1512 } 1513 mlx5_cache_list_init(&priv->hrxqs, "hrxq", 0, eth_dev, 1514 mlx5_hrxq_create_cb, 1515 mlx5_hrxq_match_cb, 1516 mlx5_hrxq_remove_cb); 1517 /* Query availability of metadata reg_c's. */ 1518 err = mlx5_flow_discover_mreg_c(eth_dev); 1519 if (err < 0) { 1520 err = -err; 1521 goto error; 1522 } 1523 if (!mlx5_flow_ext_mreg_supported(eth_dev)) { 1524 DRV_LOG(DEBUG, 1525 "port %u extensive metadata register is not supported", 1526 eth_dev->data->port_id); 1527 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) { 1528 DRV_LOG(ERR, "metadata mode %u is not supported " 1529 "(no metadata registers available)", 1530 priv->config.dv_xmeta_en); 1531 err = ENOTSUP; 1532 goto error; 1533 } 1534 } 1535 if (priv->config.dv_flow_en && 1536 priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY && 1537 mlx5_flow_ext_mreg_supported(eth_dev) && 1538 priv->sh->dv_regc0_mask) { 1539 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME, 1540 MLX5_FLOW_MREG_HTABLE_SZ, 1541 0, 0, 1542 flow_dv_mreg_create_cb, 1543 NULL, 1544 flow_dv_mreg_remove_cb); 1545 if (!priv->mreg_cp_tbl) { 1546 err = ENOMEM; 1547 goto error; 1548 } 1549 priv->mreg_cp_tbl->ctx = eth_dev; 1550 } 1551 rte_spinlock_init(&priv->shared_act_sl); 1552 mlx5_flow_counter_mode_config(eth_dev); 1553 if (priv->config.dv_flow_en) 1554 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE; 1555 return eth_dev; 1556 error: 1557 if (priv) { 1558 if (priv->mreg_cp_tbl) 1559 mlx5_hlist_destroy(priv->mreg_cp_tbl); 1560 if (priv->sh) 1561 mlx5_os_free_shared_dr(priv); 1562 if (priv->nl_socket_route >= 0) 1563 close(priv->nl_socket_route); 1564 if (priv->nl_socket_rdma >= 0) 1565 close(priv->nl_socket_rdma); 1566 if (priv->vmwa_context) 1567 mlx5_vlan_vmwa_exit(priv->vmwa_context); 1568 if (eth_dev && priv->drop_queue.hrxq) 1569 mlx5_drop_action_destroy(eth_dev); 1570 if (own_domain_id) 1571 claim_zero(rte_eth_switch_domain_free(priv->domain_id)); 1572 mlx5_cache_list_destroy(&priv->hrxqs); 1573 mlx5_free(priv); 1574 if (eth_dev != NULL) 1575 eth_dev->data->dev_private = NULL; 1576 } 1577 if (eth_dev != NULL) { 1578 /* mac_addrs must not be freed alone because part of 1579 * dev_private 1580 **/ 1581 eth_dev->data->mac_addrs = NULL; 1582 rte_eth_dev_release_port(eth_dev); 1583 } 1584 if (sh) 1585 mlx5_free_shared_dev_ctx(sh); 1586 MLX5_ASSERT(err > 0); 1587 rte_errno = err; 1588 return NULL; 1589 } 1590 1591 /** 1592 * Comparison callback to sort device data. 1593 * 1594 * This is meant to be used with qsort(). 1595 * 1596 * @param a[in] 1597 * Pointer to pointer to first data object. 1598 * @param b[in] 1599 * Pointer to pointer to second data object. 1600 * 1601 * @return 1602 * 0 if both objects are equal, less than 0 if the first argument is less 1603 * than the second, greater than 0 otherwise. 1604 */ 1605 static int 1606 mlx5_dev_spawn_data_cmp(const void *a, const void *b) 1607 { 1608 const struct mlx5_switch_info *si_a = 1609 &((const struct mlx5_dev_spawn_data *)a)->info; 1610 const struct mlx5_switch_info *si_b = 1611 &((const struct mlx5_dev_spawn_data *)b)->info; 1612 int ret; 1613 1614 /* Master device first. */ 1615 ret = si_b->master - si_a->master; 1616 if (ret) 1617 return ret; 1618 /* Then representor devices. */ 1619 ret = si_b->representor - si_a->representor; 1620 if (ret) 1621 return ret; 1622 /* Unidentified devices come last in no specific order. */ 1623 if (!si_a->representor) 1624 return 0; 1625 /* Order representors by name. */ 1626 return si_a->port_name - si_b->port_name; 1627 } 1628 1629 /** 1630 * Match PCI information for possible slaves of bonding device. 1631 * 1632 * @param[in] ibv_dev 1633 * Pointer to Infiniband device structure. 1634 * @param[in] pci_dev 1635 * Pointer to PCI device structure to match PCI address. 1636 * @param[in] nl_rdma 1637 * Netlink RDMA group socket handle. 1638 * 1639 * @return 1640 * negative value if no bonding device found, otherwise 1641 * positive index of slave PF in bonding. 1642 */ 1643 static int 1644 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev, 1645 const struct rte_pci_device *pci_dev, 1646 int nl_rdma) 1647 { 1648 char ifname[IF_NAMESIZE + 1]; 1649 unsigned int ifindex; 1650 unsigned int np, i; 1651 FILE *file = NULL; 1652 int pf = -1; 1653 1654 /* 1655 * Try to get master device name. If something goes 1656 * wrong suppose the lack of kernel support and no 1657 * bonding devices. 1658 */ 1659 if (nl_rdma < 0) 1660 return -1; 1661 if (!strstr(ibv_dev->name, "bond")) 1662 return -1; 1663 np = mlx5_nl_portnum(nl_rdma, ibv_dev->name); 1664 if (!np) 1665 return -1; 1666 /* 1667 * The Master device might not be on the predefined 1668 * port (not on port index 1, it is not garanted), 1669 * we have to scan all Infiniband device port and 1670 * find master. 1671 */ 1672 for (i = 1; i <= np; ++i) { 1673 /* Check whether Infiniband port is populated. */ 1674 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i); 1675 if (!ifindex) 1676 continue; 1677 if (!if_indextoname(ifindex, ifname)) 1678 continue; 1679 /* Try to read bonding slave names from sysfs. */ 1680 MKSTR(slaves, 1681 "/sys/class/net/%s/master/bonding/slaves", ifname); 1682 file = fopen(slaves, "r"); 1683 if (file) 1684 break; 1685 } 1686 if (!file) 1687 return -1; 1688 /* Use safe format to check maximal buffer length. */ 1689 MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE); 1690 while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) { 1691 char tmp_str[IF_NAMESIZE + 32]; 1692 struct rte_pci_addr pci_addr; 1693 struct mlx5_switch_info info; 1694 1695 /* Process slave interface names in the loop. */ 1696 snprintf(tmp_str, sizeof(tmp_str), 1697 "/sys/class/net/%s", ifname); 1698 if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) { 1699 DRV_LOG(WARNING, "can not get PCI address" 1700 " for netdev \"%s\"", ifname); 1701 continue; 1702 } 1703 if (pci_dev->addr.domain != pci_addr.domain || 1704 pci_dev->addr.bus != pci_addr.bus || 1705 pci_dev->addr.devid != pci_addr.devid || 1706 pci_dev->addr.function != pci_addr.function) 1707 continue; 1708 /* Slave interface PCI address match found. */ 1709 fclose(file); 1710 snprintf(tmp_str, sizeof(tmp_str), 1711 "/sys/class/net/%s/phys_port_name", ifname); 1712 file = fopen(tmp_str, "rb"); 1713 if (!file) 1714 break; 1715 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET; 1716 if (fscanf(file, "%32s", tmp_str) == 1) 1717 mlx5_translate_port_name(tmp_str, &info); 1718 if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY || 1719 info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) 1720 pf = info.port_name; 1721 break; 1722 } 1723 if (file) 1724 fclose(file); 1725 return pf; 1726 } 1727 1728 /** 1729 * DPDK callback to register a PCI device. 1730 * 1731 * This function spawns Ethernet devices out of a given PCI device. 1732 * 1733 * @param[in] pci_drv 1734 * PCI driver structure (mlx5_driver). 1735 * @param[in] pci_dev 1736 * PCI device information. 1737 * 1738 * @return 1739 * 0 on success, a negative errno value otherwise and rte_errno is set. 1740 */ 1741 int 1742 mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused, 1743 struct rte_pci_device *pci_dev) 1744 { 1745 struct ibv_device **ibv_list; 1746 /* 1747 * Number of found IB Devices matching with requested PCI BDF. 1748 * nd != 1 means there are multiple IB devices over the same 1749 * PCI device and we have representors and master. 1750 */ 1751 unsigned int nd = 0; 1752 /* 1753 * Number of found IB device Ports. nd = 1 and np = 1..n means 1754 * we have the single multiport IB device, and there may be 1755 * representors attached to some of found ports. 1756 */ 1757 unsigned int np = 0; 1758 /* 1759 * Number of DPDK ethernet devices to Spawn - either over 1760 * multiple IB devices or multiple ports of single IB device. 1761 * Actually this is the number of iterations to spawn. 1762 */ 1763 unsigned int ns = 0; 1764 /* 1765 * Bonding device 1766 * < 0 - no bonding device (single one) 1767 * >= 0 - bonding device (value is slave PF index) 1768 */ 1769 int bd = -1; 1770 struct mlx5_dev_spawn_data *list = NULL; 1771 struct mlx5_dev_config dev_config; 1772 unsigned int dev_config_vf; 1773 int ret; 1774 1775 if (rte_eal_process_type() == RTE_PROC_PRIMARY) 1776 mlx5_pmd_socket_init(); 1777 ret = mlx5_init_once(); 1778 if (ret) { 1779 DRV_LOG(ERR, "unable to init PMD global data: %s", 1780 strerror(rte_errno)); 1781 return -rte_errno; 1782 } 1783 errno = 0; 1784 ibv_list = mlx5_glue->get_device_list(&ret); 1785 if (!ibv_list) { 1786 rte_errno = errno ? errno : ENOSYS; 1787 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?"); 1788 return -rte_errno; 1789 } 1790 /* 1791 * First scan the list of all Infiniband devices to find 1792 * matching ones, gathering into the list. 1793 */ 1794 struct ibv_device *ibv_match[ret + 1]; 1795 int nl_route = mlx5_nl_init(NETLINK_ROUTE); 1796 int nl_rdma = mlx5_nl_init(NETLINK_RDMA); 1797 unsigned int i; 1798 1799 while (ret-- > 0) { 1800 struct rte_pci_addr pci_addr; 1801 1802 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name); 1803 bd = mlx5_device_bond_pci_match 1804 (ibv_list[ret], pci_dev, nl_rdma); 1805 if (bd >= 0) { 1806 /* 1807 * Bonding device detected. Only one match is allowed, 1808 * the bonding is supported over multi-port IB device, 1809 * there should be no matches on representor PCI 1810 * functions or non VF LAG bonding devices with 1811 * specified address. 1812 */ 1813 if (nd) { 1814 DRV_LOG(ERR, 1815 "multiple PCI match on bonding device" 1816 "\"%s\" found", ibv_list[ret]->name); 1817 rte_errno = ENOENT; 1818 ret = -rte_errno; 1819 goto exit; 1820 } 1821 DRV_LOG(INFO, "PCI information matches for" 1822 " slave %d bonding device \"%s\"", 1823 bd, ibv_list[ret]->name); 1824 ibv_match[nd++] = ibv_list[ret]; 1825 break; 1826 } 1827 if (mlx5_dev_to_pci_addr 1828 (ibv_list[ret]->ibdev_path, &pci_addr)) 1829 continue; 1830 if (pci_dev->addr.domain != pci_addr.domain || 1831 pci_dev->addr.bus != pci_addr.bus || 1832 pci_dev->addr.devid != pci_addr.devid || 1833 pci_dev->addr.function != pci_addr.function) 1834 continue; 1835 DRV_LOG(INFO, "PCI information matches for device \"%s\"", 1836 ibv_list[ret]->name); 1837 ibv_match[nd++] = ibv_list[ret]; 1838 } 1839 ibv_match[nd] = NULL; 1840 if (!nd) { 1841 /* No device matches, just complain and bail out. */ 1842 DRV_LOG(WARNING, 1843 "no Verbs device matches PCI device " PCI_PRI_FMT "," 1844 " are kernel drivers loaded?", 1845 pci_dev->addr.domain, pci_dev->addr.bus, 1846 pci_dev->addr.devid, pci_dev->addr.function); 1847 rte_errno = ENOENT; 1848 ret = -rte_errno; 1849 goto exit; 1850 } 1851 if (nd == 1) { 1852 /* 1853 * Found single matching device may have multiple ports. 1854 * Each port may be representor, we have to check the port 1855 * number and check the representors existence. 1856 */ 1857 if (nl_rdma >= 0) 1858 np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name); 1859 if (!np) 1860 DRV_LOG(WARNING, "can not get IB device \"%s\"" 1861 " ports number", ibv_match[0]->name); 1862 if (bd >= 0 && !np) { 1863 DRV_LOG(ERR, "can not get ports" 1864 " for bonding device"); 1865 rte_errno = ENOENT; 1866 ret = -rte_errno; 1867 goto exit; 1868 } 1869 } 1870 #ifndef HAVE_MLX5DV_DR_DEVX_PORT 1871 if (bd >= 0) { 1872 /* 1873 * This may happen if there is VF LAG kernel support and 1874 * application is compiled with older rdma_core library. 1875 */ 1876 DRV_LOG(ERR, 1877 "No kernel/verbs support for VF LAG bonding found."); 1878 rte_errno = ENOTSUP; 1879 ret = -rte_errno; 1880 goto exit; 1881 } 1882 #endif 1883 /* 1884 * Now we can determine the maximal 1885 * amount of devices to be spawned. 1886 */ 1887 list = mlx5_malloc(MLX5_MEM_ZERO, 1888 sizeof(struct mlx5_dev_spawn_data) * 1889 (np ? np : nd), 1890 RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY); 1891 if (!list) { 1892 DRV_LOG(ERR, "spawn data array allocation failure"); 1893 rte_errno = ENOMEM; 1894 ret = -rte_errno; 1895 goto exit; 1896 } 1897 if (bd >= 0 || np > 1) { 1898 /* 1899 * Single IB device with multiple ports found, 1900 * it may be E-Switch master device and representors. 1901 * We have to perform identification through the ports. 1902 */ 1903 MLX5_ASSERT(nl_rdma >= 0); 1904 MLX5_ASSERT(ns == 0); 1905 MLX5_ASSERT(nd == 1); 1906 MLX5_ASSERT(np); 1907 for (i = 1; i <= np; ++i) { 1908 list[ns].max_port = np; 1909 list[ns].phys_port = i; 1910 list[ns].phys_dev = ibv_match[0]; 1911 list[ns].eth_dev = NULL; 1912 list[ns].pci_dev = pci_dev; 1913 list[ns].pf_bond = bd; 1914 list[ns].ifindex = mlx5_nl_ifindex 1915 (nl_rdma, 1916 mlx5_os_get_dev_device_name 1917 (list[ns].phys_dev), i); 1918 if (!list[ns].ifindex) { 1919 /* 1920 * No network interface index found for the 1921 * specified port, it means there is no 1922 * representor on this port. It's OK, 1923 * there can be disabled ports, for example 1924 * if sriov_numvfs < sriov_totalvfs. 1925 */ 1926 continue; 1927 } 1928 ret = -1; 1929 if (nl_route >= 0) 1930 ret = mlx5_nl_switch_info 1931 (nl_route, 1932 list[ns].ifindex, 1933 &list[ns].info); 1934 if (ret || (!list[ns].info.representor && 1935 !list[ns].info.master)) { 1936 /* 1937 * We failed to recognize representors with 1938 * Netlink, let's try to perform the task 1939 * with sysfs. 1940 */ 1941 ret = mlx5_sysfs_switch_info 1942 (list[ns].ifindex, 1943 &list[ns].info); 1944 } 1945 #ifdef HAVE_MLX5DV_DR_DEVX_PORT 1946 if (!ret && bd >= 0) { 1947 switch (list[ns].info.name_type) { 1948 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: 1949 if (list[ns].info.port_name == bd) 1950 ns++; 1951 break; 1952 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF: 1953 /* Fallthrough */ 1954 case MLX5_PHYS_PORT_NAME_TYPE_PFVF: 1955 if (list[ns].info.pf_num == bd) 1956 ns++; 1957 break; 1958 default: 1959 break; 1960 } 1961 continue; 1962 } 1963 #endif 1964 if (!ret && (list[ns].info.representor ^ 1965 list[ns].info.master)) 1966 ns++; 1967 } 1968 if (!ns) { 1969 DRV_LOG(ERR, 1970 "unable to recognize master/representors" 1971 " on the IB device with multiple ports"); 1972 rte_errno = ENOENT; 1973 ret = -rte_errno; 1974 goto exit; 1975 } 1976 } else { 1977 /* 1978 * The existence of several matching entries (nd > 1) means 1979 * port representors have been instantiated. No existing Verbs 1980 * call nor sysfs entries can tell them apart, this can only 1981 * be done through Netlink calls assuming kernel drivers are 1982 * recent enough to support them. 1983 * 1984 * In the event of identification failure through Netlink, 1985 * try again through sysfs, then: 1986 * 1987 * 1. A single IB device matches (nd == 1) with single 1988 * port (np=0/1) and is not a representor, assume 1989 * no switch support. 1990 * 1991 * 2. Otherwise no safe assumptions can be made; 1992 * complain louder and bail out. 1993 */ 1994 for (i = 0; i != nd; ++i) { 1995 memset(&list[ns].info, 0, sizeof(list[ns].info)); 1996 list[ns].max_port = 1; 1997 list[ns].phys_port = 1; 1998 list[ns].phys_dev = ibv_match[i]; 1999 list[ns].eth_dev = NULL; 2000 list[ns].pci_dev = pci_dev; 2001 list[ns].pf_bond = -1; 2002 list[ns].ifindex = 0; 2003 if (nl_rdma >= 0) 2004 list[ns].ifindex = mlx5_nl_ifindex 2005 (nl_rdma, 2006 mlx5_os_get_dev_device_name 2007 (list[ns].phys_dev), 1); 2008 if (!list[ns].ifindex) { 2009 char ifname[IF_NAMESIZE]; 2010 2011 /* 2012 * Netlink failed, it may happen with old 2013 * ib_core kernel driver (before 4.16). 2014 * We can assume there is old driver because 2015 * here we are processing single ports IB 2016 * devices. Let's try sysfs to retrieve 2017 * the ifindex. The method works for 2018 * master device only. 2019 */ 2020 if (nd > 1) { 2021 /* 2022 * Multiple devices found, assume 2023 * representors, can not distinguish 2024 * master/representor and retrieve 2025 * ifindex via sysfs. 2026 */ 2027 continue; 2028 } 2029 ret = mlx5_get_ifname_sysfs 2030 (ibv_match[i]->ibdev_path, ifname); 2031 if (!ret) 2032 list[ns].ifindex = 2033 if_nametoindex(ifname); 2034 if (!list[ns].ifindex) { 2035 /* 2036 * No network interface index found 2037 * for the specified device, it means 2038 * there it is neither representor 2039 * nor master. 2040 */ 2041 continue; 2042 } 2043 } 2044 ret = -1; 2045 if (nl_route >= 0) 2046 ret = mlx5_nl_switch_info 2047 (nl_route, 2048 list[ns].ifindex, 2049 &list[ns].info); 2050 if (ret || (!list[ns].info.representor && 2051 !list[ns].info.master)) { 2052 /* 2053 * We failed to recognize representors with 2054 * Netlink, let's try to perform the task 2055 * with sysfs. 2056 */ 2057 ret = mlx5_sysfs_switch_info 2058 (list[ns].ifindex, 2059 &list[ns].info); 2060 } 2061 if (!ret && (list[ns].info.representor ^ 2062 list[ns].info.master)) { 2063 ns++; 2064 } else if ((nd == 1) && 2065 !list[ns].info.representor && 2066 !list[ns].info.master) { 2067 /* 2068 * Single IB device with 2069 * one physical port and 2070 * attached network device. 2071 * May be SRIOV is not enabled 2072 * or there is no representors. 2073 */ 2074 DRV_LOG(INFO, "no E-Switch support detected"); 2075 ns++; 2076 break; 2077 } 2078 } 2079 if (!ns) { 2080 DRV_LOG(ERR, 2081 "unable to recognize master/representors" 2082 " on the multiple IB devices"); 2083 rte_errno = ENOENT; 2084 ret = -rte_errno; 2085 goto exit; 2086 } 2087 } 2088 MLX5_ASSERT(ns); 2089 /* 2090 * Sort list to probe devices in natural order for users convenience 2091 * (i.e. master first, then representors from lowest to highest ID). 2092 */ 2093 qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp); 2094 /* Device specific configuration. */ 2095 switch (pci_dev->id.device_id) { 2096 case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF: 2097 case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF: 2098 case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF: 2099 case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF: 2100 case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF: 2101 case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF: 2102 case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF: 2103 dev_config_vf = 1; 2104 break; 2105 default: 2106 dev_config_vf = 0; 2107 break; 2108 } 2109 for (i = 0; i != ns; ++i) { 2110 uint32_t restore; 2111 2112 /* Default configuration. */ 2113 memset(&dev_config, 0, sizeof(struct mlx5_dev_config)); 2114 dev_config.vf = dev_config_vf; 2115 dev_config.mps = MLX5_ARG_UNSET; 2116 dev_config.dbnc = MLX5_ARG_UNSET; 2117 dev_config.rx_vec_en = 1; 2118 dev_config.txq_inline_max = MLX5_ARG_UNSET; 2119 dev_config.txq_inline_min = MLX5_ARG_UNSET; 2120 dev_config.txq_inline_mpw = MLX5_ARG_UNSET; 2121 dev_config.txqs_inline = MLX5_ARG_UNSET; 2122 dev_config.vf_nl_en = 1; 2123 dev_config.mr_ext_memseg_en = 1; 2124 dev_config.mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN; 2125 dev_config.mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS; 2126 dev_config.dv_esw_en = 1; 2127 dev_config.dv_flow_en = 1; 2128 dev_config.decap_en = 1; 2129 dev_config.log_hp_size = MLX5_ARG_UNSET; 2130 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device, 2131 &list[i], 2132 &dev_config); 2133 if (!list[i].eth_dev) { 2134 if (rte_errno != EBUSY && rte_errno != EEXIST) 2135 break; 2136 /* Device is disabled or already spawned. Ignore it. */ 2137 continue; 2138 } 2139 restore = list[i].eth_dev->data->dev_flags; 2140 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev); 2141 /* Restore non-PCI flags cleared by the above call. */ 2142 list[i].eth_dev->data->dev_flags |= restore; 2143 rte_eth_dev_probing_finish(list[i].eth_dev); 2144 } 2145 if (i != ns) { 2146 DRV_LOG(ERR, 2147 "probe of PCI device " PCI_PRI_FMT " aborted after" 2148 " encountering an error: %s", 2149 pci_dev->addr.domain, pci_dev->addr.bus, 2150 pci_dev->addr.devid, pci_dev->addr.function, 2151 strerror(rte_errno)); 2152 ret = -rte_errno; 2153 /* Roll back. */ 2154 while (i--) { 2155 if (!list[i].eth_dev) 2156 continue; 2157 mlx5_dev_close(list[i].eth_dev); 2158 /* mac_addrs must not be freed because in dev_private */ 2159 list[i].eth_dev->data->mac_addrs = NULL; 2160 claim_zero(rte_eth_dev_release_port(list[i].eth_dev)); 2161 } 2162 /* Restore original error. */ 2163 rte_errno = -ret; 2164 } else { 2165 ret = 0; 2166 } 2167 exit: 2168 /* 2169 * Do the routine cleanup: 2170 * - close opened Netlink sockets 2171 * - free allocated spawn data array 2172 * - free the Infiniband device list 2173 */ 2174 if (nl_rdma >= 0) 2175 close(nl_rdma); 2176 if (nl_route >= 0) 2177 close(nl_route); 2178 if (list) 2179 mlx5_free(list); 2180 MLX5_ASSERT(ibv_list); 2181 mlx5_glue->free_device_list(ibv_list); 2182 return ret; 2183 } 2184 2185 static int 2186 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config) 2187 { 2188 char *env; 2189 int value; 2190 2191 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); 2192 /* Get environment variable to store. */ 2193 env = getenv(MLX5_SHUT_UP_BF); 2194 value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET; 2195 if (config->dbnc == MLX5_ARG_UNSET) 2196 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1); 2197 else 2198 setenv(MLX5_SHUT_UP_BF, 2199 config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1); 2200 return value; 2201 } 2202 2203 static void 2204 mlx5_restore_doorbell_mapping_env(int value) 2205 { 2206 MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY); 2207 /* Restore the original environment variable state. */ 2208 if (value == MLX5_ARG_UNSET) 2209 unsetenv(MLX5_SHUT_UP_BF); 2210 else 2211 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1); 2212 } 2213 2214 /** 2215 * Extract pdn of PD object using DV API. 2216 * 2217 * @param[in] pd 2218 * Pointer to the verbs PD object. 2219 * @param[out] pdn 2220 * Pointer to the PD object number variable. 2221 * 2222 * @return 2223 * 0 on success, error value otherwise. 2224 */ 2225 int 2226 mlx5_os_get_pdn(void *pd, uint32_t *pdn) 2227 { 2228 #ifdef HAVE_IBV_FLOW_DV_SUPPORT 2229 struct mlx5dv_obj obj; 2230 struct mlx5dv_pd pd_info; 2231 int ret = 0; 2232 2233 obj.pd.in = pd; 2234 obj.pd.out = &pd_info; 2235 ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD); 2236 if (ret) { 2237 DRV_LOG(DEBUG, "Fail to get PD object info"); 2238 return ret; 2239 } 2240 *pdn = pd_info.pdn; 2241 return 0; 2242 #else 2243 (void)pd; 2244 (void)pdn; 2245 return -ENOTSUP; 2246 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */ 2247 } 2248 2249 /** 2250 * Function API to open IB device. 2251 * 2252 * This function calls the Linux glue APIs to open a device. 2253 * 2254 * @param[in] spawn 2255 * Pointer to the IB device attributes (name, port, etc). 2256 * @param[out] config 2257 * Pointer to device configuration structure. 2258 * @param[out] sh 2259 * Pointer to shared context structure. 2260 * 2261 * @return 2262 * 0 on success, a positive error value otherwise. 2263 */ 2264 int 2265 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn, 2266 const struct mlx5_dev_config *config, 2267 struct mlx5_dev_ctx_shared *sh) 2268 { 2269 int dbmap_env; 2270 int err = 0; 2271 2272 sh->numa_node = spawn->pci_dev->device.numa_node; 2273 pthread_mutex_init(&sh->txpp.mutex, NULL); 2274 /* 2275 * Configure environment variable "MLX5_BF_SHUT_UP" 2276 * before the device creation. The rdma_core library 2277 * checks the variable at device creation and 2278 * stores the result internally. 2279 */ 2280 dbmap_env = mlx5_config_doorbell_mapping_env(config); 2281 /* Try to open IB device with DV first, then usual Verbs. */ 2282 errno = 0; 2283 sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev); 2284 if (sh->ctx) { 2285 sh->devx = 1; 2286 DRV_LOG(DEBUG, "DevX is supported"); 2287 /* The device is created, no need for environment. */ 2288 mlx5_restore_doorbell_mapping_env(dbmap_env); 2289 } else { 2290 /* The environment variable is still configured. */ 2291 sh->ctx = mlx5_glue->open_device(spawn->phys_dev); 2292 err = errno ? errno : ENODEV; 2293 /* 2294 * The environment variable is not needed anymore, 2295 * all device creation attempts are completed. 2296 */ 2297 mlx5_restore_doorbell_mapping_env(dbmap_env); 2298 if (!sh->ctx) 2299 return err; 2300 DRV_LOG(DEBUG, "DevX is NOT supported"); 2301 err = 0; 2302 } 2303 return err; 2304 } 2305 2306 /** 2307 * Install shared asynchronous device events handler. 2308 * This function is implemented to support event sharing 2309 * between multiple ports of single IB device. 2310 * 2311 * @param sh 2312 * Pointer to mlx5_dev_ctx_shared object. 2313 */ 2314 void 2315 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh) 2316 { 2317 int ret; 2318 int flags; 2319 2320 sh->intr_handle.fd = -1; 2321 flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL); 2322 ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd, 2323 F_SETFL, flags | O_NONBLOCK); 2324 if (ret) { 2325 DRV_LOG(INFO, "failed to change file descriptor async event" 2326 " queue"); 2327 } else { 2328 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd; 2329 sh->intr_handle.type = RTE_INTR_HANDLE_EXT; 2330 if (rte_intr_callback_register(&sh->intr_handle, 2331 mlx5_dev_interrupt_handler, sh)) { 2332 DRV_LOG(INFO, "Fail to install the shared interrupt."); 2333 sh->intr_handle.fd = -1; 2334 } 2335 } 2336 if (sh->devx) { 2337 #ifdef HAVE_IBV_DEVX_ASYNC 2338 sh->intr_handle_devx.fd = -1; 2339 sh->devx_comp = 2340 (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx); 2341 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp; 2342 if (!devx_comp) { 2343 DRV_LOG(INFO, "failed to allocate devx_comp."); 2344 return; 2345 } 2346 flags = fcntl(devx_comp->fd, F_GETFL); 2347 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK); 2348 if (ret) { 2349 DRV_LOG(INFO, "failed to change file descriptor" 2350 " devx comp"); 2351 return; 2352 } 2353 sh->intr_handle_devx.fd = devx_comp->fd; 2354 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT; 2355 if (rte_intr_callback_register(&sh->intr_handle_devx, 2356 mlx5_dev_interrupt_handler_devx, sh)) { 2357 DRV_LOG(INFO, "Fail to install the devx shared" 2358 " interrupt."); 2359 sh->intr_handle_devx.fd = -1; 2360 } 2361 #endif /* HAVE_IBV_DEVX_ASYNC */ 2362 } 2363 } 2364 2365 /** 2366 * Uninstall shared asynchronous device events handler. 2367 * This function is implemented to support event sharing 2368 * between multiple ports of single IB device. 2369 * 2370 * @param dev 2371 * Pointer to mlx5_dev_ctx_shared object. 2372 */ 2373 void 2374 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh) 2375 { 2376 if (sh->intr_handle.fd >= 0) 2377 mlx5_intr_callback_unregister(&sh->intr_handle, 2378 mlx5_dev_interrupt_handler, sh); 2379 #ifdef HAVE_IBV_DEVX_ASYNC 2380 if (sh->intr_handle_devx.fd >= 0) 2381 rte_intr_callback_unregister(&sh->intr_handle_devx, 2382 mlx5_dev_interrupt_handler_devx, sh); 2383 if (sh->devx_comp) 2384 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp); 2385 #endif 2386 } 2387 2388 /** 2389 * Read statistics by a named counter. 2390 * 2391 * @param[in] priv 2392 * Pointer to the private device data structure. 2393 * @param[in] ctr_name 2394 * Pointer to the name of the statistic counter to read 2395 * @param[out] stat 2396 * Pointer to read statistic value. 2397 * @return 2398 * 0 on success and stat is valud, 1 if failed to read the value 2399 * rte_errno is set. 2400 * 2401 */ 2402 int 2403 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name, 2404 uint64_t *stat) 2405 { 2406 int fd; 2407 2408 if (priv->sh) { 2409 MKSTR(path, "%s/ports/%d/hw_counters/%s", 2410 priv->sh->ibdev_path, 2411 priv->dev_port, 2412 ctr_name); 2413 fd = open(path, O_RDONLY); 2414 /* 2415 * in switchdev the file location is not per port 2416 * but rather in <ibdev_path>/hw_counters/<file_name>. 2417 */ 2418 if (fd == -1) { 2419 MKSTR(path1, "%s/hw_counters/%s", 2420 priv->sh->ibdev_path, 2421 ctr_name); 2422 fd = open(path1, O_RDONLY); 2423 } 2424 if (fd != -1) { 2425 char buf[21] = {'\0'}; 2426 ssize_t n = read(fd, buf, sizeof(buf)); 2427 2428 close(fd); 2429 if (n != -1) { 2430 *stat = strtoull(buf, NULL, 10); 2431 return 0; 2432 } 2433 } 2434 } 2435 *stat = 0; 2436 return 1; 2437 } 2438 2439 /** 2440 * Set the reg_mr and dereg_mr call backs 2441 * 2442 * @param reg_mr_cb[out] 2443 * Pointer to reg_mr func 2444 * @param dereg_mr_cb[out] 2445 * Pointer to dereg_mr func 2446 * 2447 */ 2448 void 2449 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb, 2450 mlx5_dereg_mr_t *dereg_mr_cb) 2451 { 2452 *reg_mr_cb = mlx5_verbs_ops.reg_mr; 2453 *dereg_mr_cb = mlx5_verbs_ops.dereg_mr; 2454 } 2455 2456 /** 2457 * Remove a MAC address from device 2458 * 2459 * @param dev 2460 * Pointer to Ethernet device structure. 2461 * @param index 2462 * MAC address index. 2463 */ 2464 void 2465 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index) 2466 { 2467 struct mlx5_priv *priv = dev->data->dev_private; 2468 const int vf = priv->config.vf; 2469 2470 if (vf) 2471 mlx5_nl_mac_addr_remove(priv->nl_socket_route, 2472 mlx5_ifindex(dev), priv->mac_own, 2473 &dev->data->mac_addrs[index], index); 2474 } 2475 2476 /** 2477 * Adds a MAC address to the device 2478 * 2479 * @param dev 2480 * Pointer to Ethernet device structure. 2481 * @param mac_addr 2482 * MAC address to register. 2483 * @param index 2484 * MAC address index. 2485 * 2486 * @return 2487 * 0 on success, a negative errno value otherwise 2488 */ 2489 int 2490 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac, 2491 uint32_t index) 2492 { 2493 struct mlx5_priv *priv = dev->data->dev_private; 2494 const int vf = priv->config.vf; 2495 int ret = 0; 2496 2497 if (vf) 2498 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route, 2499 mlx5_ifindex(dev), priv->mac_own, 2500 mac, index); 2501 return ret; 2502 } 2503 2504 /** 2505 * Modify a VF MAC address 2506 * 2507 * @param priv 2508 * Pointer to device private data. 2509 * @param mac_addr 2510 * MAC address to modify into. 2511 * @param iface_idx 2512 * Net device interface index 2513 * @param vf_index 2514 * VF index 2515 * 2516 * @return 2517 * 0 on success, a negative errno value otherwise 2518 */ 2519 int 2520 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv, 2521 unsigned int iface_idx, 2522 struct rte_ether_addr *mac_addr, 2523 int vf_index) 2524 { 2525 return mlx5_nl_vf_mac_addr_modify 2526 (priv->nl_socket_route, iface_idx, mac_addr, vf_index); 2527 } 2528 2529 /** 2530 * Set device promiscuous mode 2531 * 2532 * @param dev 2533 * Pointer to Ethernet device structure. 2534 * @param enable 2535 * 0 - promiscuous is disabled, otherwise - enabled 2536 * 2537 * @return 2538 * 0 on success, a negative error value otherwise 2539 */ 2540 int 2541 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable) 2542 { 2543 struct mlx5_priv *priv = dev->data->dev_private; 2544 2545 return mlx5_nl_promisc(priv->nl_socket_route, 2546 mlx5_ifindex(dev), !!enable); 2547 } 2548 2549 /** 2550 * Set device promiscuous mode 2551 * 2552 * @param dev 2553 * Pointer to Ethernet device structure. 2554 * @param enable 2555 * 0 - all multicase is disabled, otherwise - enabled 2556 * 2557 * @return 2558 * 0 on success, a negative error value otherwise 2559 */ 2560 int 2561 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable) 2562 { 2563 struct mlx5_priv *priv = dev->data->dev_private; 2564 2565 return mlx5_nl_allmulti(priv->nl_socket_route, 2566 mlx5_ifindex(dev), !!enable); 2567 } 2568 2569 /** 2570 * Flush device MAC addresses 2571 * 2572 * @param dev 2573 * Pointer to Ethernet device structure. 2574 * 2575 */ 2576 void 2577 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev) 2578 { 2579 struct mlx5_priv *priv = dev->data->dev_private; 2580 2581 mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev), 2582 dev->data->mac_addrs, 2583 MLX5_MAX_MAC_ADDRESSES, priv->mac_own); 2584 } 2585 2586 const struct eth_dev_ops mlx5_os_dev_ops = { 2587 .dev_configure = mlx5_dev_configure, 2588 .dev_start = mlx5_dev_start, 2589 .dev_stop = mlx5_dev_stop, 2590 .dev_set_link_down = mlx5_set_link_down, 2591 .dev_set_link_up = mlx5_set_link_up, 2592 .dev_close = mlx5_dev_close, 2593 .promiscuous_enable = mlx5_promiscuous_enable, 2594 .promiscuous_disable = mlx5_promiscuous_disable, 2595 .allmulticast_enable = mlx5_allmulticast_enable, 2596 .allmulticast_disable = mlx5_allmulticast_disable, 2597 .link_update = mlx5_link_update, 2598 .stats_get = mlx5_stats_get, 2599 .stats_reset = mlx5_stats_reset, 2600 .xstats_get = mlx5_xstats_get, 2601 .xstats_reset = mlx5_xstats_reset, 2602 .xstats_get_names = mlx5_xstats_get_names, 2603 .fw_version_get = mlx5_fw_version_get, 2604 .dev_infos_get = mlx5_dev_infos_get, 2605 .read_clock = mlx5_txpp_read_clock, 2606 .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get, 2607 .vlan_filter_set = mlx5_vlan_filter_set, 2608 .rx_queue_setup = mlx5_rx_queue_setup, 2609 .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup, 2610 .tx_queue_setup = mlx5_tx_queue_setup, 2611 .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup, 2612 .rx_queue_release = mlx5_rx_queue_release, 2613 .tx_queue_release = mlx5_tx_queue_release, 2614 .rx_queue_start = mlx5_rx_queue_start, 2615 .rx_queue_stop = mlx5_rx_queue_stop, 2616 .tx_queue_start = mlx5_tx_queue_start, 2617 .tx_queue_stop = mlx5_tx_queue_stop, 2618 .flow_ctrl_get = mlx5_dev_get_flow_ctrl, 2619 .flow_ctrl_set = mlx5_dev_set_flow_ctrl, 2620 .mac_addr_remove = mlx5_mac_addr_remove, 2621 .mac_addr_add = mlx5_mac_addr_add, 2622 .mac_addr_set = mlx5_mac_addr_set, 2623 .set_mc_addr_list = mlx5_set_mc_addr_list, 2624 .mtu_set = mlx5_dev_set_mtu, 2625 .vlan_strip_queue_set = mlx5_vlan_strip_queue_set, 2626 .vlan_offload_set = mlx5_vlan_offload_set, 2627 .reta_update = mlx5_dev_rss_reta_update, 2628 .reta_query = mlx5_dev_rss_reta_query, 2629 .rss_hash_update = mlx5_rss_hash_update, 2630 .rss_hash_conf_get = mlx5_rss_hash_conf_get, 2631 .filter_ctrl = mlx5_dev_filter_ctrl, 2632 .rxq_info_get = mlx5_rxq_info_get, 2633 .txq_info_get = mlx5_txq_info_get, 2634 .rx_burst_mode_get = mlx5_rx_burst_mode_get, 2635 .tx_burst_mode_get = mlx5_tx_burst_mode_get, 2636 .rx_queue_intr_enable = mlx5_rx_intr_enable, 2637 .rx_queue_intr_disable = mlx5_rx_intr_disable, 2638 .is_removed = mlx5_is_removed, 2639 .udp_tunnel_port_add = mlx5_udp_tunnel_port_add, 2640 .get_module_info = mlx5_get_module_info, 2641 .get_module_eeprom = mlx5_get_module_eeprom, 2642 .hairpin_cap_get = mlx5_hairpin_cap_get, 2643 .mtr_ops_get = mlx5_flow_meter_ops_get, 2644 .hairpin_bind = mlx5_hairpin_bind, 2645 .hairpin_unbind = mlx5_hairpin_unbind, 2646 .hairpin_get_peer_ports = mlx5_hairpin_get_peer_ports, 2647 .hairpin_queue_peer_update = mlx5_hairpin_queue_peer_update, 2648 .hairpin_queue_peer_bind = mlx5_hairpin_queue_peer_bind, 2649 .hairpin_queue_peer_unbind = mlx5_hairpin_queue_peer_unbind, 2650 }; 2651 2652 /* Available operations from secondary process. */ 2653 const struct eth_dev_ops mlx5_os_dev_sec_ops = { 2654 .stats_get = mlx5_stats_get, 2655 .stats_reset = mlx5_stats_reset, 2656 .xstats_get = mlx5_xstats_get, 2657 .xstats_reset = mlx5_xstats_reset, 2658 .xstats_get_names = mlx5_xstats_get_names, 2659 .fw_version_get = mlx5_fw_version_get, 2660 .dev_infos_get = mlx5_dev_infos_get, 2661 .read_clock = mlx5_txpp_read_clock, 2662 .rx_queue_start = mlx5_rx_queue_start, 2663 .rx_queue_stop = mlx5_rx_queue_stop, 2664 .tx_queue_start = mlx5_tx_queue_start, 2665 .tx_queue_stop = mlx5_tx_queue_stop, 2666 .rxq_info_get = mlx5_rxq_info_get, 2667 .txq_info_get = mlx5_txq_info_get, 2668 .rx_burst_mode_get = mlx5_rx_burst_mode_get, 2669 .tx_burst_mode_get = mlx5_tx_burst_mode_get, 2670 .get_module_info = mlx5_get_module_info, 2671 .get_module_eeprom = mlx5_get_module_eeprom, 2672 }; 2673 2674 /* Available operations in flow isolated mode. */ 2675 const struct eth_dev_ops mlx5_os_dev_ops_isolate = { 2676 .dev_configure = mlx5_dev_configure, 2677 .dev_start = mlx5_dev_start, 2678 .dev_stop = mlx5_dev_stop, 2679 .dev_set_link_down = mlx5_set_link_down, 2680 .dev_set_link_up = mlx5_set_link_up, 2681 .dev_close = mlx5_dev_close, 2682 .promiscuous_enable = mlx5_promiscuous_enable, 2683 .promiscuous_disable = mlx5_promiscuous_disable, 2684 .allmulticast_enable = mlx5_allmulticast_enable, 2685 .allmulticast_disable = mlx5_allmulticast_disable, 2686 .link_update = mlx5_link_update, 2687 .stats_get = mlx5_stats_get, 2688 .stats_reset = mlx5_stats_reset, 2689 .xstats_get = mlx5_xstats_get, 2690 .xstats_reset = mlx5_xstats_reset, 2691 .xstats_get_names = mlx5_xstats_get_names, 2692 .fw_version_get = mlx5_fw_version_get, 2693 .dev_infos_get = mlx5_dev_infos_get, 2694 .read_clock = mlx5_txpp_read_clock, 2695 .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get, 2696 .vlan_filter_set = mlx5_vlan_filter_set, 2697 .rx_queue_setup = mlx5_rx_queue_setup, 2698 .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup, 2699 .tx_queue_setup = mlx5_tx_queue_setup, 2700 .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup, 2701 .rx_queue_release = mlx5_rx_queue_release, 2702 .tx_queue_release = mlx5_tx_queue_release, 2703 .rx_queue_start = mlx5_rx_queue_start, 2704 .rx_queue_stop = mlx5_rx_queue_stop, 2705 .tx_queue_start = mlx5_tx_queue_start, 2706 .tx_queue_stop = mlx5_tx_queue_stop, 2707 .flow_ctrl_get = mlx5_dev_get_flow_ctrl, 2708 .flow_ctrl_set = mlx5_dev_set_flow_ctrl, 2709 .mac_addr_remove = mlx5_mac_addr_remove, 2710 .mac_addr_add = mlx5_mac_addr_add, 2711 .mac_addr_set = mlx5_mac_addr_set, 2712 .set_mc_addr_list = mlx5_set_mc_addr_list, 2713 .mtu_set = mlx5_dev_set_mtu, 2714 .vlan_strip_queue_set = mlx5_vlan_strip_queue_set, 2715 .vlan_offload_set = mlx5_vlan_offload_set, 2716 .filter_ctrl = mlx5_dev_filter_ctrl, 2717 .rxq_info_get = mlx5_rxq_info_get, 2718 .txq_info_get = mlx5_txq_info_get, 2719 .rx_burst_mode_get = mlx5_rx_burst_mode_get, 2720 .tx_burst_mode_get = mlx5_tx_burst_mode_get, 2721 .rx_queue_intr_enable = mlx5_rx_intr_enable, 2722 .rx_queue_intr_disable = mlx5_rx_intr_disable, 2723 .is_removed = mlx5_is_removed, 2724 .get_module_info = mlx5_get_module_info, 2725 .get_module_eeprom = mlx5_get_module_eeprom, 2726 .hairpin_cap_get = mlx5_hairpin_cap_get, 2727 .mtr_ops_get = mlx5_flow_meter_ops_get, 2728 .hairpin_bind = mlx5_hairpin_bind, 2729 .hairpin_unbind = mlx5_hairpin_unbind, 2730 .hairpin_get_peer_ports = mlx5_hairpin_get_peer_ports, 2731 .hairpin_queue_peer_update = mlx5_hairpin_queue_peer_update, 2732 .hairpin_queue_peer_bind = mlx5_hairpin_queue_peer_bind, 2733 .hairpin_queue_peer_unbind = mlx5_hairpin_queue_peer_unbind, 2734 }; 2735