drivers/net/mlx5/linux/mlx5_os.c

   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 <ethdev_driver.h>
  20 #include <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_rx.h"
  44 #include "mlx5_tx.h"
  45 #include "mlx5_autoconf.h"
  46 #include "mlx5_mr.h"
  47 #include "mlx5_flow.h"
  48 #include "rte_pmd_mlx5.h"
  49 #include "mlx5_verbs.h"
  50 #include "mlx5_nl.h"
  51 #include "mlx5_devx.h"
  52
  53 #define MLX5_TAGS_HLIST_ARRAY_SIZE 8192
  54
  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)
  58 #endif
  59
  60 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
  61 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
  62 #endif
  63
  64 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
  65
  66 /* Spinlock for mlx5_shared_data allocation. */
  67 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
  68
  69 /* Process local data for secondary processes. */
  70 static struct mlx5_local_data mlx5_local_data;
  71
  72 /**
  73  * Set the completion channel file descriptor interrupt as non-blocking.
  74  *
  75  * @param[in] rxq_obj
  76  *   Pointer to RQ channel object, which includes the channel fd
  77  *
  78  * @param[out] fd
  79  *   The file descriptor (representing the intetrrupt) used in this channel.
  80  *
  81  * @return
  82  *   0 on successfully setting the fd to non-blocking, non-zero otherwise.
  83  */
  84 int
  85 mlx5_os_set_nonblock_channel_fd(int fd)
  86 {
  87         int flags;
  88
  89         flags = fcntl(fd, F_GETFL);
  90         return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
  91 }
  92
  93 /**
  94  * Get mlx5 device attributes. The glue function query_device_ex() is called
  95  * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
  96  * device attributes from the glue out parameter.
  97  *
  98  * @param dev
  99  *   Pointer to ibv context.
 100  *
 101  * @param device_attr
 102  *   Pointer to mlx5 device attributes.
 103  *
 104  * @return
 105  *   0 on success, non zero error number otherwise
 106  */
 107 int
 108 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
 109 {
 110         int err;
 111         struct ibv_device_attr_ex attr_ex;
 112         memset(device_attr, 0, sizeof(*device_attr));
 113         err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
 114         if (err)
 115                 return err;
 116
 117         device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
 118         device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
 119         device_attr->max_sge = attr_ex.orig_attr.max_sge;
 120         device_attr->max_cq = attr_ex.orig_attr.max_cq;
 121         device_attr->max_cqe = attr_ex.orig_attr.max_cqe;
 122         device_attr->max_mr = attr_ex.orig_attr.max_mr;
 123         device_attr->max_pd = attr_ex.orig_attr.max_pd;
 124         device_attr->max_qp = attr_ex.orig_attr.max_qp;
 125         device_attr->max_srq = attr_ex.orig_attr.max_srq;
 126         device_attr->max_srq_wr = attr_ex.orig_attr.max_srq_wr;
 127         device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
 128         device_attr->max_rwq_indirection_table_size =
 129                 attr_ex.rss_caps.max_rwq_indirection_table_size;
 130         device_attr->max_tso = attr_ex.tso_caps.max_tso;
 131         device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
 132
 133         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 134         err = mlx5_glue->dv_query_device(ctx, &dv_attr);
 135         if (err)
 136                 return err;
 137
 138         device_attr->flags = dv_attr.flags;
 139         device_attr->comp_mask = dv_attr.comp_mask;
 140 #ifdef HAVE_IBV_MLX5_MOD_SWP
 141         device_attr->sw_parsing_offloads =
 142                 dv_attr.sw_parsing_caps.sw_parsing_offloads;
 143 #endif
 144         device_attr->min_single_stride_log_num_of_bytes =
 145                 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
 146         device_attr->max_single_stride_log_num_of_bytes =
 147                 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
 148         device_attr->min_single_wqe_log_num_of_strides =
 149                 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
 150         device_attr->max_single_wqe_log_num_of_strides =
 151                 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
 152         device_attr->stride_supported_qpts =
 153                 dv_attr.striding_rq_caps.supported_qpts;
 154 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 155         device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
 156 #endif
 157         strlcpy(device_attr->fw_ver, attr_ex.orig_attr.fw_ver,
 158                 sizeof(device_attr->fw_ver));
 159
 160         return err;
 161 }
 162
 163 /**
 164  * Verbs callback to allocate a memory. This function should allocate the space
 165  * according to the size provided residing inside a huge page.
 166  * Please note that all allocation must respect the alignment from libmlx5
 167  * (i.e. currently rte_mem_page_size()).
 168  *
 169  * @param[in] size
 170  *   The size in bytes of the memory to allocate.
 171  * @param[in] data
 172  *   A pointer to the callback data.
 173  *
 174  * @return
 175  *   Allocated buffer, NULL otherwise and rte_errno is set.
 176  */
 177 static void *
 178 mlx5_alloc_verbs_buf(size_t size, void *data)
 179 {
 180         struct mlx5_dev_ctx_shared *sh = data;
 181         void *ret;
 182         size_t alignment = rte_mem_page_size();
 183         if (alignment == (size_t)-1) {
 184                 DRV_LOG(ERR, "Failed to get mem page size");
 185                 rte_errno = ENOMEM;
 186                 return NULL;
 187         }
 188
 189         MLX5_ASSERT(data != NULL);
 190         ret = mlx5_malloc(0, size, alignment, sh->numa_node);
 191         if (!ret && size)
 192                 rte_errno = ENOMEM;
 193         return ret;
 194 }
 195
 196 /**
 197  * Verbs callback to free a memory.
 198  *
 199  * @param[in] ptr
 200  *   A pointer to the memory to free.
 201  * @param[in] data
 202  *   A pointer to the callback data.
 203  */
 204 static void
 205 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
 206 {
 207         MLX5_ASSERT(data != NULL);
 208         mlx5_free(ptr);
 209 }
 210
 211 /**
 212  * Initialize DR related data within private structure.
 213  * Routine checks the reference counter and does actual
 214  * resources creation/initialization only if counter is zero.
 215  *
 216  * @param[in] priv
 217  *   Pointer to the private device data structure.
 218  *
 219  * @return
 220  *   Zero on success, positive error code otherwise.
 221  */
 222 static int
 223 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 224 {
 225         struct mlx5_dev_ctx_shared *sh = priv->sh;
 226         char s[MLX5_HLIST_NAMESIZE] __rte_unused;
 227         int err;
 228
 229         MLX5_ASSERT(sh && sh->refcnt);
 230         if (sh->refcnt > 1)
 231                 return 0;
 232         err = mlx5_alloc_table_hash_list(priv);
 233         if (err)
 234                 goto error;
 235         /* The resources below are only valid with DV support. */
 236 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 237         /* Init port id action cache list. */
 238         snprintf(s, sizeof(s), "%s_port_id_action_cache", sh->ibdev_name);
 239         mlx5_cache_list_init(&sh->port_id_action_list, s, 0, sh,
 240                              flow_dv_port_id_create_cb,
 241                              flow_dv_port_id_match_cb,
 242                              flow_dv_port_id_remove_cb);
 243         /* Init push vlan action cache list. */
 244         snprintf(s, sizeof(s), "%s_push_vlan_action_cache", sh->ibdev_name);
 245         mlx5_cache_list_init(&sh->push_vlan_action_list, s, 0, sh,
 246                              flow_dv_push_vlan_create_cb,
 247                              flow_dv_push_vlan_match_cb,
 248                              flow_dv_push_vlan_remove_cb);
 249         /* Init sample action cache list. */
 250         snprintf(s, sizeof(s), "%s_sample_action_cache", sh->ibdev_name);
 251         mlx5_cache_list_init(&sh->sample_action_list, s, 0, sh,
 252                              flow_dv_sample_create_cb,
 253                              flow_dv_sample_match_cb,
 254                              flow_dv_sample_remove_cb);
 255         /* Init dest array action cache list. */
 256         snprintf(s, sizeof(s), "%s_dest_array_cache", sh->ibdev_name);
 257         mlx5_cache_list_init(&sh->dest_array_list, s, 0, sh,
 258                              flow_dv_dest_array_create_cb,
 259                              flow_dv_dest_array_match_cb,
 260                              flow_dv_dest_array_remove_cb);
 261         /* Create tags hash list table. */
 262         snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
 263         sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE, 0,
 264                                           MLX5_HLIST_WRITE_MOST,
 265                                           flow_dv_tag_create_cb,
 266                                           flow_dv_tag_match_cb,
 267                                           flow_dv_tag_remove_cb);
 268         if (!sh->tag_table) {
 269                 DRV_LOG(ERR, "tags with hash creation failed.");
 270                 err = ENOMEM;
 271                 goto error;
 272         }
 273         sh->tag_table->ctx = sh;
 274         snprintf(s, sizeof(s), "%s_hdr_modify", sh->ibdev_name);
 275         sh->modify_cmds = mlx5_hlist_create(s, MLX5_FLOW_HDR_MODIFY_HTABLE_SZ,
 276                                             0, MLX5_HLIST_WRITE_MOST |
 277                                             MLX5_HLIST_DIRECT_KEY,
 278                                             flow_dv_modify_create_cb,
 279                                             flow_dv_modify_match_cb,
 280                                             flow_dv_modify_remove_cb);
 281         if (!sh->modify_cmds) {
 282                 DRV_LOG(ERR, "hdr modify hash creation failed");
 283                 err = ENOMEM;
 284                 goto error;
 285         }
 286         sh->modify_cmds->ctx = sh;
 287         snprintf(s, sizeof(s), "%s_encaps_decaps", sh->ibdev_name);
 288         sh->encaps_decaps = mlx5_hlist_create(s,
 289                                               MLX5_FLOW_ENCAP_DECAP_HTABLE_SZ,
 290                                               0, MLX5_HLIST_DIRECT_KEY |
 291                                               MLX5_HLIST_WRITE_MOST,
 292                                               flow_dv_encap_decap_create_cb,
 293                                               flow_dv_encap_decap_match_cb,
 294                                               flow_dv_encap_decap_remove_cb);
 295         if (!sh->encaps_decaps) {
 296                 DRV_LOG(ERR, "encap decap hash creation failed");
 297                 err = ENOMEM;
 298                 goto error;
 299         }
 300         sh->encaps_decaps->ctx = sh;
 301 #endif
 302 #ifdef HAVE_MLX5DV_DR
 303         void *domain;
 304
 305         /* Reference counter is zero, we should initialize structures. */
 306         domain = mlx5_glue->dr_create_domain(sh->ctx,
 307                                              MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
 308         if (!domain) {
 309                 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
 310                 err = errno;
 311                 goto error;
 312         }
 313         sh->rx_domain = domain;
 314         domain = mlx5_glue->dr_create_domain(sh->ctx,
 315                                              MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
 316         if (!domain) {
 317                 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
 318                 err = errno;
 319                 goto error;
 320         }
 321         sh->tx_domain = domain;
 322 #ifdef HAVE_MLX5DV_DR_ESWITCH
 323         if (priv->config.dv_esw_en) {
 324                 domain  = mlx5_glue->dr_create_domain
 325                         (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
 326                 if (!domain) {
 327                         DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
 328                         err = errno;
 329                         goto error;
 330                 }
 331                 sh->fdb_domain = domain;
 332         }
 333         /*
 334          * The drop action is just some dummy placeholder in rdma-core. It
 335          * does not belong to domains and has no any attributes, and, can be
 336          * shared by the entire device.
 337          */
 338         sh->dr_drop_action = mlx5_glue->dr_create_flow_action_drop();
 339         if (!sh->dr_drop_action) {
 340                 DRV_LOG(ERR, "FDB mlx5dv_dr_create_flow_action_drop");
 341                 err = errno;
 342                 goto error;
 343         }
 344 #endif
 345         if (!sh->tunnel_hub)
 346                 err = mlx5_alloc_tunnel_hub(sh);
 347         if (err) {
 348                 DRV_LOG(ERR, "mlx5_alloc_tunnel_hub failed err=%d", err);
 349                 goto error;
 350         }
 351         if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
 352                 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
 353                 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
 354                 if (sh->fdb_domain)
 355                         mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
 356         }
 357         sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
 358 #endif /* HAVE_MLX5DV_DR */
 359         sh->default_miss_action =
 360                         mlx5_glue->dr_create_flow_action_default_miss();
 361         if (!sh->default_miss_action)
 362                 DRV_LOG(WARNING, "Default miss action is not supported.");
 363         return 0;
 364 error:
 365         /* Rollback the created objects. */
 366         if (sh->rx_domain) {
 367                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 368                 sh->rx_domain = NULL;
 369         }
 370         if (sh->tx_domain) {
 371                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 372                 sh->tx_domain = NULL;
 373         }
 374         if (sh->fdb_domain) {
 375                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 376                 sh->fdb_domain = NULL;
 377         }
 378         if (sh->dr_drop_action) {
 379                 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
 380                 sh->dr_drop_action = NULL;
 381         }
 382         if (sh->pop_vlan_action) {
 383                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 384                 sh->pop_vlan_action = NULL;
 385         }
 386         if (sh->encaps_decaps) {
 387                 mlx5_hlist_destroy(sh->encaps_decaps);
 388                 sh->encaps_decaps = NULL;
 389         }
 390         if (sh->modify_cmds) {
 391                 mlx5_hlist_destroy(sh->modify_cmds);
 392                 sh->modify_cmds = NULL;
 393         }
 394         if (sh->tag_table) {
 395                 /* tags should be destroyed with flow before. */
 396                 mlx5_hlist_destroy(sh->tag_table);
 397                 sh->tag_table = NULL;
 398         }
 399         if (sh->tunnel_hub) {
 400                 mlx5_release_tunnel_hub(sh, priv->dev_port);
 401                 sh->tunnel_hub = NULL;
 402         }
 403         mlx5_free_table_hash_list(priv);
 404         return err;
 405 }
 406
 407 /**
 408  * Destroy DR related data within private structure.
 409  *
 410  * @param[in] priv
 411  *   Pointer to the private device data structure.
 412  */
 413 void
 414 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
 415 {
 416         struct mlx5_dev_ctx_shared *sh = priv->sh;
 417
 418         MLX5_ASSERT(sh && sh->refcnt);
 419         if (sh->refcnt > 1)
 420                 return;
 421 #ifdef HAVE_MLX5DV_DR
 422         if (sh->rx_domain) {
 423                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 424                 sh->rx_domain = NULL;
 425         }
 426         if (sh->tx_domain) {
 427                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 428                 sh->tx_domain = NULL;
 429         }
 430 #ifdef HAVE_MLX5DV_DR_ESWITCH
 431         if (sh->fdb_domain) {
 432                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 433                 sh->fdb_domain = NULL;
 434         }
 435         if (sh->dr_drop_action) {
 436                 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
 437                 sh->dr_drop_action = NULL;
 438         }
 439 #endif
 440         if (sh->pop_vlan_action) {
 441                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 442                 sh->pop_vlan_action = NULL;
 443         }
 444 #endif /* HAVE_MLX5DV_DR */
 445         if (sh->default_miss_action)
 446                 mlx5_glue->destroy_flow_action
 447                                 (sh->default_miss_action);
 448         if (sh->encaps_decaps) {
 449                 mlx5_hlist_destroy(sh->encaps_decaps);
 450                 sh->encaps_decaps = NULL;
 451         }
 452         if (sh->modify_cmds) {
 453                 mlx5_hlist_destroy(sh->modify_cmds);
 454                 sh->modify_cmds = NULL;
 455         }
 456         if (sh->tag_table) {
 457                 /* tags should be destroyed with flow before. */
 458                 mlx5_hlist_destroy(sh->tag_table);
 459                 sh->tag_table = NULL;
 460         }
 461         if (sh->tunnel_hub) {
 462                 mlx5_release_tunnel_hub(sh, priv->dev_port);
 463                 sh->tunnel_hub = NULL;
 464         }
 465         mlx5_cache_list_destroy(&sh->port_id_action_list);
 466         mlx5_cache_list_destroy(&sh->push_vlan_action_list);
 467         mlx5_free_table_hash_list(priv);
 468 }
 469
 470 /**
 471  * Initialize shared data between primary and secondary process.
 472  *
 473  * A memzone is reserved by primary process and secondary processes attach to
 474  * the memzone.
 475  *
 476  * @return
 477  *   0 on success, a negative errno value otherwise and rte_errno is set.
 478  */
 479 static int
 480 mlx5_init_shared_data(void)
 481 {
 482         const struct rte_memzone *mz;
 483         int ret = 0;
 484
 485         rte_spinlock_lock(&mlx5_shared_data_lock);
 486         if (mlx5_shared_data == NULL) {
 487                 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 488                         /* Allocate shared memory. */
 489                         mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
 490                                                  sizeof(*mlx5_shared_data),
 491                                                  SOCKET_ID_ANY, 0);
 492                         if (mz == NULL) {
 493                                 DRV_LOG(ERR,
 494                                         "Cannot allocate mlx5 shared data");
 495                                 ret = -rte_errno;
 496                                 goto error;
 497                         }
 498                         mlx5_shared_data = mz->addr;
 499                         memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
 500                         rte_spinlock_init(&mlx5_shared_data->lock);
 501                 } else {
 502                         /* Lookup allocated shared memory. */
 503                         mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
 504                         if (mz == NULL) {
 505                                 DRV_LOG(ERR,
 506                                         "Cannot attach mlx5 shared data");
 507                                 ret = -rte_errno;
 508                                 goto error;
 509                         }
 510                         mlx5_shared_data = mz->addr;
 511                         memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
 512                 }
 513         }
 514 error:
 515         rte_spinlock_unlock(&mlx5_shared_data_lock);
 516         return ret;
 517 }
 518
 519 /**
 520  * PMD global initialization.
 521  *
 522  * Independent from individual device, this function initializes global
 523  * per-PMD data structures distinguishing primary and secondary processes.
 524  * Hence, each initialization is called once per a process.
 525  *
 526  * @return
 527  *   0 on success, a negative errno value otherwise and rte_errno is set.
 528  */
 529 static int
 530 mlx5_init_once(void)
 531 {
 532         struct mlx5_shared_data *sd;
 533         struct mlx5_local_data *ld = &mlx5_local_data;
 534         int ret = 0;
 535
 536         if (mlx5_init_shared_data())
 537                 return -rte_errno;
 538         sd = mlx5_shared_data;
 539         MLX5_ASSERT(sd);
 540         rte_spinlock_lock(&sd->lock);
 541         switch (rte_eal_process_type()) {
 542         case RTE_PROC_PRIMARY:
 543                 if (sd->init_done)
 544                         break;
 545                 LIST_INIT(&sd->mem_event_cb_list);
 546                 rte_rwlock_init(&sd->mem_event_rwlock);
 547                 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
 548                                                 mlx5_mr_mem_event_cb, NULL);
 549                 ret = mlx5_mp_init_primary(MLX5_MP_NAME,
 550                                            mlx5_mp_os_primary_handle);
 551                 if (ret)
 552                         goto out;
 553                 sd->init_done = true;
 554                 break;
 555         case RTE_PROC_SECONDARY:
 556                 if (ld->init_done)
 557                         break;
 558                 ret = mlx5_mp_init_secondary(MLX5_MP_NAME,
 559                                              mlx5_mp_os_secondary_handle);
 560                 if (ret)
 561                         goto out;
 562                 ++sd->secondary_cnt;
 563                 ld->init_done = true;
 564                 break;
 565         default:
 566                 break;
 567         }
 568 out:
 569         rte_spinlock_unlock(&sd->lock);
 570         return ret;
 571 }
 572
 573 /**
 574  * Create the Tx queue DevX/Verbs object.
 575  *
 576  * @param dev
 577  *   Pointer to Ethernet device.
 578  * @param idx
 579  *   Queue index in DPDK Tx queue array.
 580  *
 581  * @return
 582  *   0 on success, a negative errno value otherwise and rte_errno is set.
 583  */
 584 static int
 585 mlx5_os_txq_obj_new(struct rte_eth_dev *dev, uint16_t idx)
 586 {
 587         struct mlx5_priv *priv = dev->data->dev_private;
 588         struct mlx5_txq_data *txq_data = (*priv->txqs)[idx];
 589         struct mlx5_txq_ctrl *txq_ctrl =
 590                         container_of(txq_data, struct mlx5_txq_ctrl, txq);
 591
 592         if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN)
 593                 return mlx5_txq_devx_obj_new(dev, idx);
 594 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
 595         if (!priv->config.dv_esw_en)
 596                 return mlx5_txq_devx_obj_new(dev, idx);
 597 #endif
 598         return mlx5_txq_ibv_obj_new(dev, idx);
 599 }
 600
 601 /**
 602  * Release an Tx DevX/verbs queue object.
 603  *
 604  * @param txq_obj
 605  *   DevX/Verbs Tx queue object.
 606  */
 607 static void
 608 mlx5_os_txq_obj_release(struct mlx5_txq_obj *txq_obj)
 609 {
 610         if (txq_obj->txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) {
 611                 mlx5_txq_devx_obj_release(txq_obj);
 612                 return;
 613         }
 614 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
 615         if (!txq_obj->txq_ctrl->priv->config.dv_esw_en) {
 616                 mlx5_txq_devx_obj_release(txq_obj);
 617                 return;
 618         }
 619 #endif
 620         mlx5_txq_ibv_obj_release(txq_obj);
 621 }
 622
 623 /**
 624  * DV flow counter mode detect and config.
 625  *
 626  * @param dev
 627  *   Pointer to rte_eth_dev structure.
 628  *
 629  */
 630 static void
 631 mlx5_flow_counter_mode_config(struct rte_eth_dev *dev __rte_unused)
 632 {
 633 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 634         struct mlx5_priv *priv = dev->data->dev_private;
 635         struct mlx5_dev_ctx_shared *sh = priv->sh;
 636         bool fallback;
 637
 638 #ifndef HAVE_IBV_DEVX_ASYNC
 639         fallback = true;
 640 #else
 641         fallback = false;
 642         if (!priv->config.devx || !priv->config.dv_flow_en ||
 643             !priv->config.hca_attr.flow_counters_dump ||
 644             !(priv->config.hca_attr.flow_counter_bulk_alloc_bitmap & 0x4) ||
 645             (mlx5_flow_dv_discover_counter_offset_support(dev) == -ENOTSUP))
 646                 fallback = true;
 647 #endif
 648         if (fallback)
 649                 DRV_LOG(INFO, "Use fall-back DV counter management. Flow "
 650                         "counter dump:%d, bulk_alloc_bitmap:0x%hhx.",
 651                         priv->config.hca_attr.flow_counters_dump,
 652                         priv->config.hca_attr.flow_counter_bulk_alloc_bitmap);
 653         /* Initialize fallback mode only on the port initializes sh. */
 654         if (sh->refcnt == 1)
 655                 sh->cmng.counter_fallback = fallback;
 656         else if (fallback != sh->cmng.counter_fallback)
 657                 DRV_LOG(WARNING, "Port %d in sh has different fallback mode "
 658                         "with others:%d.", PORT_ID(priv), fallback);
 659 #endif
 660 }
 661
 662 static void
 663 mlx5_queue_counter_id_prepare(struct rte_eth_dev *dev)
 664 {
 665         struct mlx5_priv *priv = dev->data->dev_private;
 666         void *ctx = priv->sh->ctx;
 667
 668         priv->q_counters = mlx5_devx_cmd_queue_counter_alloc(ctx);
 669         if (!priv->q_counters) {
 670                 struct ibv_cq *cq = mlx5_glue->create_cq(ctx, 1, NULL, NULL, 0);
 671                 struct ibv_wq *wq;
 672
 673                 DRV_LOG(DEBUG, "Port %d queue counter object cannot be created "
 674                         "by DevX - fall-back to use the kernel driver global "
 675                         "queue counter.", dev->data->port_id);
 676                 /* Create WQ by kernel and query its queue counter ID. */
 677                 if (cq) {
 678                         wq = mlx5_glue->create_wq(ctx,
 679                                                   &(struct ibv_wq_init_attr){
 680                                                     .wq_type = IBV_WQT_RQ,
 681                                                     .max_wr = 1,
 682                                                     .max_sge = 1,
 683                                                     .pd = priv->sh->pd,
 684                                                     .cq = cq,
 685                                                 });
 686                         if (wq) {
 687                                 /* Counter is assigned only on RDY state. */
 688                                 int ret = mlx5_glue->modify_wq(wq,
 689                                                  &(struct ibv_wq_attr){
 690                                                  .attr_mask = IBV_WQ_ATTR_STATE,
 691                                                  .wq_state = IBV_WQS_RDY,
 692                                                 });
 693
 694                                 if (ret == 0)
 695                                         mlx5_devx_cmd_wq_query(wq,
 696                                                          &priv->counter_set_id);
 697                                 claim_zero(mlx5_glue->destroy_wq(wq));
 698                         }
 699                         claim_zero(mlx5_glue->destroy_cq(cq));
 700                 }
 701         } else {
 702                 priv->counter_set_id = priv->q_counters->id;
 703         }
 704         if (priv->counter_set_id == 0)
 705                 DRV_LOG(INFO, "Part of the port %d statistics will not be "
 706                         "available.", dev->data->port_id);
 707 }
 708
 709 /**
 710  * Check if representor spawn info match devargs.
 711  *
 712  * @param spawn
 713  *   Verbs device parameters (name, port, switch_info) to spawn.
 714  * @param eth_da
 715  *   Device devargs to probe.
 716  *
 717  * @return
 718  *   Match result.
 719  */
 720 static bool
 721 mlx5_representor_match(struct mlx5_dev_spawn_data *spawn,
 722                        struct rte_eth_devargs *eth_da)
 723 {
 724         struct mlx5_switch_info *switch_info = &spawn->info;
 725         unsigned int p, f;
 726         uint16_t id;
 727         uint16_t repr_id = mlx5_representor_id_encode(switch_info,
 728                                                       eth_da->type);
 729
 730         switch (eth_da->type) {
 731         case RTE_ETH_REPRESENTOR_SF:
 732                 if (!(spawn->info.port_name == -1 &&
 733                       switch_info->name_type ==
 734                                 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
 735                     switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFSF) {
 736                         rte_errno = EBUSY;
 737                         return false;
 738                 }
 739                 break;
 740         case RTE_ETH_REPRESENTOR_VF:
 741                 /* Allows HPF representor index -1 as exception. */
 742                 if (!(spawn->info.port_name == -1 &&
 743                       switch_info->name_type ==
 744                                 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
 745                     switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFVF) {
 746                         rte_errno = EBUSY;
 747                         return false;
 748                 }
 749                 break;
 750         case RTE_ETH_REPRESENTOR_NONE:
 751                 rte_errno = EBUSY;
 752                 return false;
 753         default:
 754                 rte_errno = ENOTSUP;
 755                 DRV_LOG(ERR, "unsupported representor type");
 756                 return false;
 757         }
 758         /* Check representor ID: */
 759         for (p = 0; p < eth_da->nb_ports; ++p) {
 760                 if (spawn->pf_bond < 0) {
 761                         /* For non-LAG mode, allow and ignore pf. */
 762                         switch_info->pf_num = eth_da->ports[p];
 763                         repr_id = mlx5_representor_id_encode(switch_info,
 764                                                              eth_da->type);
 765                 }
 766                 for (f = 0; f < eth_da->nb_representor_ports; ++f) {
 767                         id = MLX5_REPRESENTOR_ID
 768                                 (eth_da->ports[p], eth_da->type,
 769                                  eth_da->representor_ports[f]);
 770                         if (repr_id == id)
 771                                 return true;
 772                 }
 773         }
 774         rte_errno = EBUSY;
 775         return false;
 776 }
 777
 778
 779 /**
 780  * Spawn an Ethernet device from Verbs information.
 781  *
 782  * @param dpdk_dev
 783  *   Backing DPDK device.
 784  * @param spawn
 785  *   Verbs device parameters (name, port, switch_info) to spawn.
 786  * @param config
 787  *   Device configuration parameters.
 788  * @param config
 789  *   Device arguments.
 790  *
 791  * @return
 792  *   A valid Ethernet device object on success, NULL otherwise and rte_errno
 793  *   is set. The following errors are defined:
 794  *
 795  *   EBUSY: device is not supposed to be spawned.
 796  *   EEXIST: device is already spawned
 797  */
 798 static struct rte_eth_dev *
 799 mlx5_dev_spawn(struct rte_device *dpdk_dev,
 800                struct mlx5_dev_spawn_data *spawn,
 801                struct mlx5_dev_config *config,
 802                struct rte_eth_devargs *eth_da)
 803 {
 804         const struct mlx5_switch_info *switch_info = &spawn->info;
 805         struct mlx5_dev_ctx_shared *sh = NULL;
 806         struct ibv_port_attr port_attr;
 807         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 808         struct rte_eth_dev *eth_dev = NULL;
 809         struct mlx5_priv *priv = NULL;
 810         int err = 0;
 811         unsigned int hw_padding = 0;
 812         unsigned int mps;
 813         unsigned int tunnel_en = 0;
 814         unsigned int mpls_en = 0;
 815         unsigned int swp = 0;
 816         unsigned int mprq = 0;
 817         unsigned int mprq_min_stride_size_n = 0;
 818         unsigned int mprq_max_stride_size_n = 0;
 819         unsigned int mprq_min_stride_num_n = 0;
 820         unsigned int mprq_max_stride_num_n = 0;
 821         struct rte_ether_addr mac;
 822         char name[RTE_ETH_NAME_MAX_LEN];
 823         int own_domain_id = 0;
 824         uint16_t port_id;
 825 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
 826         struct mlx5dv_devx_port devx_port = { .comp_mask = 0 };
 827 #endif
 828
 829         /* Determine if this port representor is supposed to be spawned. */
 830         if (switch_info->representor && dpdk_dev->devargs &&
 831             !mlx5_representor_match(spawn, eth_da))
 832                 return NULL;
 833         /* Build device name. */
 834         if (spawn->pf_bond < 0) {
 835                 /* Single device. */
 836                 if (!switch_info->representor)
 837                         strlcpy(name, dpdk_dev->name, sizeof(name));
 838                 else
 839                         err = snprintf(name, sizeof(name), "%s_representor_%s%u",
 840                                  dpdk_dev->name,
 841                                  switch_info->name_type ==
 842                                  MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
 843                                  switch_info->port_name);
 844         } else {
 845                 /* Bonding device. */
 846                 if (!switch_info->representor) {
 847                         err = snprintf(name, sizeof(name), "%s_%s",
 848                                  dpdk_dev->name,
 849                                  mlx5_os_get_dev_device_name(spawn->phys_dev));
 850                 } else {
 851                         err = snprintf(name, sizeof(name), "%s_%s_representor_c%dpf%d%s%u",
 852                                 dpdk_dev->name,
 853                                 mlx5_os_get_dev_device_name(spawn->phys_dev),
 854                                 switch_info->ctrl_num,
 855                                 switch_info->pf_num,
 856                                 switch_info->name_type ==
 857                                 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
 858                                 switch_info->port_name);
 859                 }
 860         }
 861         if (err >= (int)sizeof(name))
 862                 DRV_LOG(WARNING, "device name overflow %s", name);
 863         /* check if the device is already spawned */
 864         if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
 865                 rte_errno = EEXIST;
 866                 return NULL;
 867         }
 868         DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
 869         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
 870                 struct mlx5_mp_id mp_id;
 871
 872                 eth_dev = rte_eth_dev_attach_secondary(name);
 873                 if (eth_dev == NULL) {
 874                         DRV_LOG(ERR, "can not attach rte ethdev");
 875                         rte_errno = ENOMEM;
 876                         return NULL;
 877                 }
 878                 eth_dev->device = dpdk_dev;
 879                 eth_dev->dev_ops = &mlx5_dev_sec_ops;
 880                 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
 881                 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
 882                 err = mlx5_proc_priv_init(eth_dev);
 883                 if (err)
 884                         return NULL;
 885                 mp_id.port_id = eth_dev->data->port_id;
 886                 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 887                 /* Receive command fd from primary process */
 888                 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
 889                 if (err < 0)
 890                         goto err_secondary;
 891                 /* Remap UAR for Tx queues. */
 892                 err = mlx5_tx_uar_init_secondary(eth_dev, err);
 893                 if (err)
 894                         goto err_secondary;
 895                 /*
 896                  * Ethdev pointer is still required as input since
 897                  * the primary device is not accessible from the
 898                  * secondary process.
 899                  */
 900                 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
 901                 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
 902                 return eth_dev;
 903 err_secondary:
 904                 mlx5_dev_close(eth_dev);
 905                 return NULL;
 906         }
 907         /*
 908          * Some parameters ("tx_db_nc" in particularly) are needed in
 909          * advance to create dv/verbs device context. We proceed the
 910          * devargs here to get ones, and later proceed devargs again
 911          * to override some hardware settings.
 912          */
 913         err = mlx5_args(config, dpdk_dev->devargs);
 914         if (err) {
 915                 err = rte_errno;
 916                 DRV_LOG(ERR, "failed to process device arguments: %s",
 917                         strerror(rte_errno));
 918                 goto error;
 919         }
 920         if (config->dv_miss_info) {
 921                 if (switch_info->master || switch_info->representor)
 922                         config->dv_xmeta_en = MLX5_XMETA_MODE_META16;
 923         }
 924         mlx5_malloc_mem_select(config->sys_mem_en);
 925         sh = mlx5_alloc_shared_dev_ctx(spawn, config);
 926         if (!sh)
 927                 return NULL;
 928         config->devx = sh->devx;
 929 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
 930         config->dest_tir = 1;
 931 #endif
 932 #ifdef HAVE_IBV_MLX5_MOD_SWP
 933         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
 934 #endif
 935         /*
 936          * Multi-packet send is supported by ConnectX-4 Lx PF as well
 937          * as all ConnectX-5 devices.
 938          */
 939 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 940         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
 941 #endif
 942 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 943         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
 944 #endif
 945         mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
 946         if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
 947                 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
 948                         DRV_LOG(DEBUG, "enhanced MPW is supported");
 949                         mps = MLX5_MPW_ENHANCED;
 950                 } else {
 951                         DRV_LOG(DEBUG, "MPW is supported");
 952                         mps = MLX5_MPW;
 953                 }
 954         } else {
 955                 DRV_LOG(DEBUG, "MPW isn't supported");
 956                 mps = MLX5_MPW_DISABLED;
 957         }
 958 #ifdef HAVE_IBV_MLX5_MOD_SWP
 959         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
 960                 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
 961         DRV_LOG(DEBUG, "SWP support: %u", swp);
 962 #endif
 963         config->swp = !!swp;
 964 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 965         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
 966                 struct mlx5dv_striding_rq_caps mprq_caps =
 967                         dv_attr.striding_rq_caps;
 968
 969                 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
 970                         mprq_caps.min_single_stride_log_num_of_bytes);
 971                 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
 972                         mprq_caps.max_single_stride_log_num_of_bytes);
 973                 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
 974                         mprq_caps.min_single_wqe_log_num_of_strides);
 975                 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
 976                         mprq_caps.max_single_wqe_log_num_of_strides);
 977                 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
 978                         mprq_caps.supported_qpts);
 979                 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
 980                 mprq = 1;
 981                 mprq_min_stride_size_n =
 982                         mprq_caps.min_single_stride_log_num_of_bytes;
 983                 mprq_max_stride_size_n =
 984                         mprq_caps.max_single_stride_log_num_of_bytes;
 985                 mprq_min_stride_num_n =
 986                         mprq_caps.min_single_wqe_log_num_of_strides;
 987                 mprq_max_stride_num_n =
 988                         mprq_caps.max_single_wqe_log_num_of_strides;
 989         }
 990 #endif
 991         /* Rx CQE compression is enabled by default. */
 992         config->cqe_comp = 1;
 993 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 994         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
 995                 tunnel_en = ((dv_attr.tunnel_offloads_caps &
 996                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
 997                              (dv_attr.tunnel_offloads_caps &
 998                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
 999                              (dv_attr.tunnel_offloads_caps &
1000                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
1001         }
1002         DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
1003                 tunnel_en ? "" : "not ");
1004 #else
1005         DRV_LOG(WARNING,
1006                 "tunnel offloading disabled due to old OFED/rdma-core version");
1007 #endif
1008         config->tunnel_en = tunnel_en;
1009 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1010         mpls_en = ((dv_attr.tunnel_offloads_caps &
1011                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
1012                    (dv_attr.tunnel_offloads_caps &
1013                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
1014         DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
1015                 mpls_en ? "" : "not ");
1016 #else
1017         DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
1018                 " old OFED/rdma-core version or firmware configuration");
1019 #endif
1020         config->mpls_en = mpls_en;
1021         /* Check port status. */
1022         err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
1023         if (err) {
1024                 DRV_LOG(ERR, "port query failed: %s", strerror(err));
1025                 goto error;
1026         }
1027         if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
1028                 DRV_LOG(ERR, "port is not configured in Ethernet mode");
1029                 err = EINVAL;
1030                 goto error;
1031         }
1032         if (port_attr.state != IBV_PORT_ACTIVE)
1033                 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
1034                         mlx5_glue->port_state_str(port_attr.state),
1035                         port_attr.state);
1036         /* Allocate private eth device data. */
1037         priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
1038                            sizeof(*priv),
1039                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1040         if (priv == NULL) {
1041                 DRV_LOG(ERR, "priv allocation failure");
1042                 err = ENOMEM;
1043                 goto error;
1044         }
1045         priv->sh = sh;
1046         priv->dev_port = spawn->phys_port;
1047         priv->pci_dev = spawn->pci_dev;
1048         priv->mtu = RTE_ETHER_MTU;
1049         /* Some internal functions rely on Netlink sockets, open them now. */
1050         priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
1051         priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
1052         priv->representor = !!switch_info->representor;
1053         priv->master = !!switch_info->master;
1054         priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
1055         priv->vport_meta_tag = 0;
1056         priv->vport_meta_mask = 0;
1057         priv->pf_bond = spawn->pf_bond;
1058 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
1059         /*
1060          * The DevX port query API is implemented. E-Switch may use
1061          * either vport or reg_c[0] metadata register to match on
1062          * vport index. The engaged part of metadata register is
1063          * defined by mask.
1064          */
1065         if (switch_info->representor || switch_info->master) {
1066                 devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT |
1067                                       MLX5DV_DEVX_PORT_MATCH_REG_C_0;
1068                 err = mlx5_glue->devx_port_query(sh->ctx, spawn->phys_port,
1069                                                  &devx_port);
1070                 if (err) {
1071                         DRV_LOG(WARNING,
1072                                 "can't query devx port %d on device %s",
1073                                 spawn->phys_port,
1074                                 mlx5_os_get_dev_device_name(spawn->phys_dev));
1075                         devx_port.comp_mask = 0;
1076                 }
1077         }
1078         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) {
1079                 priv->vport_meta_tag = devx_port.reg_c_0.value;
1080                 priv->vport_meta_mask = devx_port.reg_c_0.mask;
1081                 if (!priv->vport_meta_mask) {
1082                         DRV_LOG(ERR, "vport zero mask for port %d"
1083                                      " on bonding device %s",
1084                                      spawn->phys_port,
1085                                      mlx5_os_get_dev_device_name
1086                                                         (spawn->phys_dev));
1087                         err = ENOTSUP;
1088                         goto error;
1089                 }
1090                 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
1091                         DRV_LOG(ERR, "invalid vport tag for port %d"
1092                                      " on bonding device %s",
1093                                      spawn->phys_port,
1094                                      mlx5_os_get_dev_device_name
1095                                                         (spawn->phys_dev));
1096                         err = ENOTSUP;
1097                         goto error;
1098                 }
1099         }
1100         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) {
1101                 priv->vport_id = devx_port.vport_num;
1102         } else if (spawn->pf_bond >= 0 &&
1103                    (switch_info->representor || switch_info->master)) {
1104                 DRV_LOG(ERR, "can't deduce vport index for port %d"
1105                              " on bonding device %s",
1106                              spawn->phys_port,
1107                              mlx5_os_get_dev_device_name(spawn->phys_dev));
1108                 err = ENOTSUP;
1109                 goto error;
1110         } else {
1111                 /* Suppose vport index in compatible way. */
1112                 priv->vport_id = switch_info->representor ?
1113                                  switch_info->port_name + 1 : -1;
1114         }
1115 #else
1116         /*
1117          * Kernel/rdma_core support single E-Switch per PF configurations
1118          * only and vport_id field contains the vport index for
1119          * associated VF, which is deduced from representor port name.
1120          * For example, let's have the IB device port 10, it has
1121          * attached network device eth0, which has port name attribute
1122          * pf0vf2, we can deduce the VF number as 2, and set vport index
1123          * as 3 (2+1). This assigning schema should be changed if the
1124          * multiple E-Switch instances per PF configurations or/and PCI
1125          * subfunctions are added.
1126          */
1127         priv->vport_id = switch_info->representor ?
1128                          switch_info->port_name + 1 : -1;
1129 #endif
1130         priv->representor_id = mlx5_representor_id_encode(switch_info,
1131                                                           eth_da->type);
1132         /*
1133          * Look for sibling devices in order to reuse their switch domain
1134          * if any, otherwise allocate one.
1135          */
1136         MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
1137                 const struct mlx5_priv *opriv =
1138                         rte_eth_devices[port_id].data->dev_private;
1139
1140                 if (!opriv ||
1141                     opriv->sh != priv->sh ||
1142                         opriv->domain_id ==
1143                         RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
1144                         continue;
1145                 priv->domain_id = opriv->domain_id;
1146                 break;
1147         }
1148         if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
1149                 err = rte_eth_switch_domain_alloc(&priv->domain_id);
1150                 if (err) {
1151                         err = rte_errno;
1152                         DRV_LOG(ERR, "unable to allocate switch domain: %s",
1153                                 strerror(rte_errno));
1154                         goto error;
1155                 }
1156                 own_domain_id = 1;
1157         }
1158         /* Override some values set by hardware configuration. */
1159         mlx5_args(config, dpdk_dev->devargs);
1160         err = mlx5_dev_check_sibling_config(priv, config);
1161         if (err)
1162                 goto error;
1163         config->hw_csum = !!(sh->device_attr.device_cap_flags_ex &
1164                             IBV_DEVICE_RAW_IP_CSUM);
1165         DRV_LOG(DEBUG, "checksum offloading is %ssupported",
1166                 (config->hw_csum ? "" : "not "));
1167 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
1168         !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1169         DRV_LOG(DEBUG, "counters are not supported");
1170 #endif
1171 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
1172         if (config->dv_flow_en) {
1173                 DRV_LOG(WARNING, "DV flow is not supported");
1174                 config->dv_flow_en = 0;
1175         }
1176 #endif
1177         config->ind_table_max_size =
1178                 sh->device_attr.max_rwq_indirection_table_size;
1179         /*
1180          * Remove this check once DPDK supports larger/variable
1181          * indirection tables.
1182          */
1183         if (config->ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
1184                 config->ind_table_max_size = ETH_RSS_RETA_SIZE_512;
1185         DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
1186                 config->ind_table_max_size);
1187         config->hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
1188                                   IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
1189         DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
1190                 (config->hw_vlan_strip ? "" : "not "));
1191         config->hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
1192                                  IBV_RAW_PACKET_CAP_SCATTER_FCS);
1193 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
1194         hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
1195 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
1196         hw_padding = !!(sh->device_attr.device_cap_flags_ex &
1197                         IBV_DEVICE_PCI_WRITE_END_PADDING);
1198 #endif
1199         if (config->hw_padding && !hw_padding) {
1200                 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
1201                 config->hw_padding = 0;
1202         } else if (config->hw_padding) {
1203                 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
1204         }
1205         config->tso = (sh->device_attr.max_tso > 0 &&
1206                       (sh->device_attr.tso_supported_qpts &
1207                        (1 << IBV_QPT_RAW_PACKET)));
1208         if (config->tso)
1209                 config->tso_max_payload_sz = sh->device_attr.max_tso;
1210         /*
1211          * MPW is disabled by default, while the Enhanced MPW is enabled
1212          * by default.
1213          */
1214         if (config->mps == MLX5_ARG_UNSET)
1215                 config->mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
1216                                                           MLX5_MPW_DISABLED;
1217         else
1218                 config->mps = config->mps ? mps : MLX5_MPW_DISABLED;
1219         DRV_LOG(INFO, "%sMPS is %s",
1220                 config->mps == MLX5_MPW_ENHANCED ? "enhanced " :
1221                 config->mps == MLX5_MPW ? "legacy " : "",
1222                 config->mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
1223         if (config->devx) {
1224                 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config->hca_attr);
1225                 if (err) {
1226                         err = -err;
1227                         goto error;
1228                 }
1229                 /* Check relax ordering support. */
1230                 if (!haswell_broadwell_cpu) {
1231                         sh->cmng.relaxed_ordering_write =
1232                                 config->hca_attr.relaxed_ordering_write;
1233                         sh->cmng.relaxed_ordering_read =
1234                                 config->hca_attr.relaxed_ordering_read;
1235                 } else {
1236                         sh->cmng.relaxed_ordering_read = 0;
1237                         sh->cmng.relaxed_ordering_write = 0;
1238                 }
1239                 sh->rq_ts_format = config->hca_attr.rq_ts_format;
1240                 sh->sq_ts_format = config->hca_attr.sq_ts_format;
1241                 sh->qp_ts_format = config->hca_attr.qp_ts_format;
1242                 /* Check for LRO support. */
1243                 if (config->dest_tir && config->hca_attr.lro_cap &&
1244                     config->dv_flow_en) {
1245                         /* TBD check tunnel lro caps. */
1246                         config->lro.supported = config->hca_attr.lro_cap;
1247                         DRV_LOG(DEBUG, "Device supports LRO");
1248                         /*
1249                          * If LRO timeout is not configured by application,
1250                          * use the minimal supported value.
1251                          */
1252                         if (!config->lro.timeout)
1253                                 config->lro.timeout =
1254                                 config->hca_attr.lro_timer_supported_periods[0];
1255                         DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
1256                                 config->lro.timeout);
1257                         DRV_LOG(DEBUG, "LRO minimal size of TCP segment "
1258                                 "required for coalescing is %d bytes",
1259                                 config->hca_attr.lro_min_mss_size);
1260                 }
1261 #if defined(HAVE_MLX5DV_DR) && \
1262         (defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) || \
1263          defined(HAVE_MLX5_DR_CREATE_ACTION_ASO))
1264                 if (config->hca_attr.qos.sup &&
1265                     config->hca_attr.qos.flow_meter_old &&
1266                     config->dv_flow_en) {
1267                         uint8_t reg_c_mask =
1268                                 config->hca_attr.qos.flow_meter_reg_c_ids;
1269                         /*
1270                          * Meter needs two REG_C's for color match and pre-sfx
1271                          * flow match. Here get the REG_C for color match.
1272                          * REG_C_0 and REG_C_1 is reserved for metadata feature.
1273                          */
1274                         reg_c_mask &= 0xfc;
1275                         if (__builtin_popcount(reg_c_mask) < 1) {
1276                                 priv->mtr_en = 0;
1277                                 DRV_LOG(WARNING, "No available register for"
1278                                         " meter.");
1279                         } else {
1280                                 /*
1281                                  * The meter color register is used by the
1282                                  * flow-hit feature as well.
1283                                  * The flow-hit feature must use REG_C_3
1284                                  * Prefer REG_C_3 if it is available.
1285                                  */
1286                                 if (reg_c_mask & (1 << (REG_C_3 - REG_C_0)))
1287                                         priv->mtr_color_reg = REG_C_3;
1288                                 else
1289                                         priv->mtr_color_reg = ffs(reg_c_mask)
1290                                                               - 1 + REG_C_0;
1291                                 priv->mtr_en = 1;
1292                                 priv->mtr_reg_share =
1293                                       config->hca_attr.qos.flow_meter;
1294                                 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
1295                                         priv->mtr_color_reg);
1296                         }
1297                 }
1298                 if (config->hca_attr.qos.sup &&
1299                         config->hca_attr.qos.flow_meter_aso_sup) {
1300                         uint32_t log_obj_size =
1301                                 rte_log2_u32(MLX5_ASO_MTRS_PER_POOL >> 1);
1302                         if (log_obj_size >=
1303                         config->hca_attr.qos.log_meter_aso_granularity &&
1304                         log_obj_size <=
1305                         config->hca_attr.qos.log_meter_aso_max_alloc)
1306                                 sh->meter_aso_en = 1;
1307                 }
1308                 if (priv->mtr_en) {
1309                         err = mlx5_aso_flow_mtrs_mng_init(priv->sh);
1310                         if (err) {
1311                                 err = -err;
1312                                 goto error;
1313                         }
1314                 }
1315 #endif
1316 #ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO
1317                 if (config->hca_attr.flow_hit_aso &&
1318                     priv->mtr_color_reg == REG_C_3) {
1319                         sh->flow_hit_aso_en = 1;
1320                         err = mlx5_flow_aso_age_mng_init(sh);
1321                         if (err) {
1322                                 err = -err;
1323                                 goto error;
1324                         }
1325                         DRV_LOG(DEBUG, "Flow Hit ASO is supported.");
1326                 }
1327 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */
1328 #if defined(HAVE_MLX5_DR_CREATE_ACTION_ASO) && \
1329         defined(HAVE_MLX5_DR_ACTION_ASO_CT)
1330                 if (config->hca_attr.ct_offload &&
1331                     priv->mtr_color_reg == REG_C_3) {
1332                         err = mlx5_flow_aso_ct_mng_init(sh);
1333                         if (err) {
1334                                 err = -err;
1335                                 goto error;
1336                         }
1337                         DRV_LOG(DEBUG, "CT ASO is supported.");
1338                         sh->ct_aso_en = 1;
1339                 }
1340 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO && HAVE_MLX5_DR_ACTION_ASO_CT */
1341 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE)
1342                 if (config->hca_attr.log_max_ft_sampler_num > 0  &&
1343                     config->dv_flow_en) {
1344                         priv->sampler_en = 1;
1345                         DRV_LOG(DEBUG, "Sampler enabled!");
1346                 } else {
1347                         priv->sampler_en = 0;
1348                         if (!config->hca_attr.log_max_ft_sampler_num)
1349                                 DRV_LOG(WARNING,
1350                                         "No available register for sampler.");
1351                         else
1352                                 DRV_LOG(DEBUG, "DV flow is not supported!");
1353                 }
1354 #endif
1355         }
1356         if (config->cqe_comp && RTE_CACHE_LINE_SIZE == 128 &&
1357             !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) {
1358                 DRV_LOG(WARNING, "Rx CQE 128B compression is not supported");
1359                 config->cqe_comp = 0;
1360         }
1361         if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_FTAG_STRIDX &&
1362             (!config->devx || !config->hca_attr.mini_cqe_resp_flow_tag)) {
1363                 DRV_LOG(WARNING, "Flow Tag CQE compression"
1364                                  " format isn't supported.");
1365                 config->cqe_comp = 0;
1366         }
1367         if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_L34H_STRIDX &&
1368             (!config->devx || !config->hca_attr.mini_cqe_resp_l3_l4_tag)) {
1369                 DRV_LOG(WARNING, "L3/L4 Header CQE compression"
1370                                  " format isn't supported.");
1371                 config->cqe_comp = 0;
1372         }
1373         DRV_LOG(DEBUG, "Rx CQE compression is %ssupported",
1374                         config->cqe_comp ? "" : "not ");
1375         if (config->tx_pp) {
1376                 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
1377                         config->hca_attr.dev_freq_khz);
1378                 DRV_LOG(DEBUG, "Packet pacing is %ssupported",
1379                         config->hca_attr.qos.packet_pacing ? "" : "not ");
1380                 DRV_LOG(DEBUG, "Cross channel ops are %ssupported",
1381                         config->hca_attr.cross_channel ? "" : "not ");
1382                 DRV_LOG(DEBUG, "WQE index ignore is %ssupported",
1383                         config->hca_attr.wqe_index_ignore ? "" : "not ");
1384                 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported",
1385                         config->hca_attr.non_wire_sq ? "" : "not ");
1386                 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
1387                         config->hca_attr.log_max_static_sq_wq ? "" : "not ",
1388                         config->hca_attr.log_max_static_sq_wq);
1389                 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported",
1390                         config->hca_attr.qos.wqe_rate_pp ? "" : "not ");
1391                 if (!config->devx) {
1392                         DRV_LOG(ERR, "DevX is required for packet pacing");
1393                         err = ENODEV;
1394                         goto error;
1395                 }
1396                 if (!config->hca_attr.qos.packet_pacing) {
1397                         DRV_LOG(ERR, "Packet pacing is not supported");
1398                         err = ENODEV;
1399                         goto error;
1400                 }
1401                 if (!config->hca_attr.cross_channel) {
1402                         DRV_LOG(ERR, "Cross channel operations are"
1403                                      " required for packet pacing");
1404                         err = ENODEV;
1405                         goto error;
1406                 }
1407                 if (!config->hca_attr.wqe_index_ignore) {
1408                         DRV_LOG(ERR, "WQE index ignore feature is"
1409                                      " required for packet pacing");
1410                         err = ENODEV;
1411                         goto error;
1412                 }
1413                 if (!config->hca_attr.non_wire_sq) {
1414                         DRV_LOG(ERR, "Non-wire SQ feature is"
1415                                      " required for packet pacing");
1416                         err = ENODEV;
1417                         goto error;
1418                 }
1419                 if (!config->hca_attr.log_max_static_sq_wq) {
1420                         DRV_LOG(ERR, "Static WQE SQ feature is"
1421                                      " required for packet pacing");
1422                         err = ENODEV;
1423                         goto error;
1424                 }
1425                 if (!config->hca_attr.qos.wqe_rate_pp) {
1426                         DRV_LOG(ERR, "WQE rate mode is required"
1427                                      " for packet pacing");
1428                         err = ENODEV;
1429                         goto error;
1430                 }
1431 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1432                 DRV_LOG(ERR, "DevX does not provide UAR offset,"
1433                              " can't create queues for packet pacing");
1434                 err = ENODEV;
1435                 goto error;
1436 #endif
1437         }
1438         if (config->devx) {
1439                 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
1440
1441                 err = config->hca_attr.access_register_user ?
1442                         mlx5_devx_cmd_register_read
1443                                 (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0,
1444                                 reg, MLX5_ST_SZ_DW(register_mtutc)) : ENOTSUP;
1445                 if (!err) {
1446                         uint32_t ts_mode;
1447
1448                         /* MTUTC register is read successfully. */
1449                         ts_mode = MLX5_GET(register_mtutc, reg,
1450                                            time_stamp_mode);
1451                         if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME)
1452                                 config->rt_timestamp = 1;
1453                 } else {
1454                         /* Kernel does not support register reading. */
1455                         if (config->hca_attr.dev_freq_khz ==
1456                                                  (NS_PER_S / MS_PER_S))
1457                                 config->rt_timestamp = 1;
1458                 }
1459         }
1460         /*
1461          * If HW has bug working with tunnel packet decapsulation and
1462          * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip
1463          * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore.
1464          */
1465         if (config->hca_attr.scatter_fcs_w_decap_disable && config->decap_en)
1466                 config->hw_fcs_strip = 0;
1467         DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
1468                 (config->hw_fcs_strip ? "" : "not "));
1469         if (config->mprq.enabled && mprq) {
1470                 if (config->mprq.stride_num_n &&
1471                     (config->mprq.stride_num_n > mprq_max_stride_num_n ||
1472                      config->mprq.stride_num_n < mprq_min_stride_num_n)) {
1473                         config->mprq.stride_num_n =
1474                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1475                                                 mprq_min_stride_num_n),
1476                                         mprq_max_stride_num_n);
1477                         DRV_LOG(WARNING,
1478                                 "the number of strides"
1479                                 " for Multi-Packet RQ is out of range,"
1480                                 " setting default value (%u)",
1481                                 1 << config->mprq.stride_num_n);
1482                 }
1483                 if (config->mprq.stride_size_n &&
1484                     (config->mprq.stride_size_n > mprq_max_stride_size_n ||
1485                      config->mprq.stride_size_n < mprq_min_stride_size_n)) {
1486                         config->mprq.stride_size_n =
1487                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
1488                                                 mprq_min_stride_size_n),
1489                                         mprq_max_stride_size_n);
1490                         DRV_LOG(WARNING,
1491                                 "the size of a stride"
1492                                 " for Multi-Packet RQ is out of range,"
1493                                 " setting default value (%u)",
1494                                 1 << config->mprq.stride_size_n);
1495                 }
1496                 config->mprq.min_stride_size_n = mprq_min_stride_size_n;
1497                 config->mprq.max_stride_size_n = mprq_max_stride_size_n;
1498         } else if (config->mprq.enabled && !mprq) {
1499                 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1500                 config->mprq.enabled = 0;
1501         }
1502         if (config->max_dump_files_num == 0)
1503                 config->max_dump_files_num = 128;
1504         eth_dev = rte_eth_dev_allocate(name);
1505         if (eth_dev == NULL) {
1506                 DRV_LOG(ERR, "can not allocate rte ethdev");
1507                 err = ENOMEM;
1508                 goto error;
1509         }
1510         if (priv->representor) {
1511                 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1512                 eth_dev->data->representor_id = priv->representor_id;
1513         }
1514         priv->mp_id.port_id = eth_dev->data->port_id;
1515         strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
1516         /*
1517          * Store associated network device interface index. This index
1518          * is permanent throughout the lifetime of device. So, we may store
1519          * the ifindex here and use the cached value further.
1520          */
1521         MLX5_ASSERT(spawn->ifindex);
1522         priv->if_index = spawn->ifindex;
1523         eth_dev->data->dev_private = priv;
1524         priv->dev_data = eth_dev->data;
1525         eth_dev->data->mac_addrs = priv->mac;
1526         eth_dev->device = dpdk_dev;
1527         eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1528         /* Configure the first MAC address by default. */
1529         if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1530                 DRV_LOG(ERR,
1531                         "port %u cannot get MAC address, is mlx5_en"
1532                         " loaded? (errno: %s)",
1533                         eth_dev->data->port_id, strerror(rte_errno));
1534                 err = ENODEV;
1535                 goto error;
1536         }
1537         DRV_LOG(INFO,
1538                 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1539                 eth_dev->data->port_id,
1540                 mac.addr_bytes[0], mac.addr_bytes[1],
1541                 mac.addr_bytes[2], mac.addr_bytes[3],
1542                 mac.addr_bytes[4], mac.addr_bytes[5]);
1543 #ifdef RTE_LIBRTE_MLX5_DEBUG
1544         {
1545                 char ifname[MLX5_NAMESIZE];
1546
1547                 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1548                         DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1549                                 eth_dev->data->port_id, ifname);
1550                 else
1551                         DRV_LOG(DEBUG, "port %u ifname is unknown",
1552                                 eth_dev->data->port_id);
1553         }
1554 #endif
1555         /* Get actual MTU if possible. */
1556         err = mlx5_get_mtu(eth_dev, &priv->mtu);
1557         if (err) {
1558                 err = rte_errno;
1559                 goto error;
1560         }
1561         DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1562                 priv->mtu);
1563         /* Initialize burst functions to prevent crashes before link-up. */
1564         eth_dev->rx_pkt_burst = removed_rx_burst;
1565         eth_dev->tx_pkt_burst = removed_tx_burst;
1566         eth_dev->dev_ops = &mlx5_dev_ops;
1567         eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1568         eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1569         eth_dev->rx_queue_count = mlx5_rx_queue_count;
1570         /* Register MAC address. */
1571         claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1572         if (config->vf && config->vf_nl_en)
1573                 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1574                                       mlx5_ifindex(eth_dev),
1575                                       eth_dev->data->mac_addrs,
1576                                       MLX5_MAX_MAC_ADDRESSES);
1577         priv->flows = 0;
1578         priv->ctrl_flows = 0;
1579         rte_spinlock_init(&priv->flow_list_lock);
1580         TAILQ_INIT(&priv->flow_meters);
1581         TAILQ_INIT(&priv->flow_meter_profiles);
1582         /* Hint libmlx5 to use PMD allocator for data plane resources */
1583         mlx5_glue->dv_set_context_attr(sh->ctx,
1584                         MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1585                         (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
1586                                 .alloc = &mlx5_alloc_verbs_buf,
1587                                 .free = &mlx5_free_verbs_buf,
1588                                 .data = sh,
1589                         }));
1590         /* Bring Ethernet device up. */
1591         DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1592                 eth_dev->data->port_id);
1593         mlx5_set_link_up(eth_dev);
1594         /*
1595          * Even though the interrupt handler is not installed yet,
1596          * interrupts will still trigger on the async_fd from
1597          * Verbs context returned by ibv_open_device().
1598          */
1599         mlx5_link_update(eth_dev, 0);
1600 #ifdef HAVE_MLX5DV_DR_ESWITCH
1601         if (!(config->hca_attr.eswitch_manager && config->dv_flow_en &&
1602               (switch_info->representor || switch_info->master)))
1603                 config->dv_esw_en = 0;
1604 #else
1605         config->dv_esw_en = 0;
1606 #endif
1607         /* Detect minimal data bytes to inline. */
1608         mlx5_set_min_inline(spawn, config);
1609         /* Store device configuration on private structure. */
1610         priv->config = *config;
1611         /* Create context for virtual machine VLAN workaround. */
1612         priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1613         if (config->dv_flow_en) {
1614                 err = mlx5_alloc_shared_dr(priv);
1615                 if (err)
1616                         goto error;
1617         }
1618         if (config->devx && config->dv_flow_en && config->dest_tir) {
1619                 priv->obj_ops = devx_obj_ops;
1620                 priv->obj_ops.drop_action_create =
1621                                                 ibv_obj_ops.drop_action_create;
1622                 priv->obj_ops.drop_action_destroy =
1623                                                 ibv_obj_ops.drop_action_destroy;
1624 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1625                 priv->obj_ops.txq_obj_modify = ibv_obj_ops.txq_obj_modify;
1626 #else
1627                 if (config->dv_esw_en)
1628                         priv->obj_ops.txq_obj_modify =
1629                                                 ibv_obj_ops.txq_obj_modify;
1630 #endif
1631                 /* Use specific wrappers for Tx object. */
1632                 priv->obj_ops.txq_obj_new = mlx5_os_txq_obj_new;
1633                 priv->obj_ops.txq_obj_release = mlx5_os_txq_obj_release;
1634                 mlx5_queue_counter_id_prepare(eth_dev);
1635                 priv->obj_ops.lb_dummy_queue_create =
1636                                         mlx5_rxq_ibv_obj_dummy_lb_create;
1637                 priv->obj_ops.lb_dummy_queue_release =
1638                                         mlx5_rxq_ibv_obj_dummy_lb_release;
1639         } else {
1640                 priv->obj_ops = ibv_obj_ops;
1641         }
1642         priv->drop_queue.hrxq = mlx5_drop_action_create(eth_dev);
1643         if (!priv->drop_queue.hrxq)
1644                 goto error;
1645         /* Supported Verbs flow priority number detection. */
1646         err = mlx5_flow_discover_priorities(eth_dev);
1647         if (err < 0) {
1648                 err = -err;
1649                 goto error;
1650         }
1651         priv->config.flow_prio = err;
1652         if (!priv->config.dv_esw_en &&
1653             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1654                 DRV_LOG(WARNING, "metadata mode %u is not supported "
1655                                  "(no E-Switch)", priv->config.dv_xmeta_en);
1656                 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1657         }
1658         mlx5_set_metadata_mask(eth_dev);
1659         if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1660             !priv->sh->dv_regc0_mask) {
1661                 DRV_LOG(ERR, "metadata mode %u is not supported "
1662                              "(no metadata reg_c[0] is available)",
1663                              priv->config.dv_xmeta_en);
1664                         err = ENOTSUP;
1665                         goto error;
1666         }
1667         mlx5_cache_list_init(&priv->hrxqs, "hrxq", 0, eth_dev,
1668                              mlx5_hrxq_create_cb,
1669                              mlx5_hrxq_match_cb,
1670                              mlx5_hrxq_remove_cb);
1671         /* Query availability of metadata reg_c's. */
1672         err = mlx5_flow_discover_mreg_c(eth_dev);
1673         if (err < 0) {
1674                 err = -err;
1675                 goto error;
1676         }
1677         if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1678                 DRV_LOG(DEBUG,
1679                         "port %u extensive metadata register is not supported",
1680                         eth_dev->data->port_id);
1681                 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1682                         DRV_LOG(ERR, "metadata mode %u is not supported "
1683                                      "(no metadata registers available)",
1684                                      priv->config.dv_xmeta_en);
1685                         err = ENOTSUP;
1686                         goto error;
1687                 }
1688         }
1689         if (priv->config.dv_flow_en &&
1690             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1691             mlx5_flow_ext_mreg_supported(eth_dev) &&
1692             priv->sh->dv_regc0_mask) {
1693                 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1694                                                       MLX5_FLOW_MREG_HTABLE_SZ,
1695                                                       0, 0,
1696                                                       flow_dv_mreg_create_cb,
1697                                                       flow_dv_mreg_match_cb,
1698                                                       flow_dv_mreg_remove_cb);
1699                 if (!priv->mreg_cp_tbl) {
1700                         err = ENOMEM;
1701                         goto error;
1702                 }
1703                 priv->mreg_cp_tbl->ctx = eth_dev;
1704         }
1705         rte_spinlock_init(&priv->shared_act_sl);
1706         mlx5_flow_counter_mode_config(eth_dev);
1707         if (priv->config.dv_flow_en)
1708                 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
1709         return eth_dev;
1710 error:
1711         if (priv) {
1712                 if (priv->mreg_cp_tbl)
1713                         mlx5_hlist_destroy(priv->mreg_cp_tbl);
1714                 if (priv->sh)
1715                         mlx5_os_free_shared_dr(priv);
1716                 if (priv->nl_socket_route >= 0)
1717                         close(priv->nl_socket_route);
1718                 if (priv->nl_socket_rdma >= 0)
1719                         close(priv->nl_socket_rdma);
1720                 if (priv->vmwa_context)
1721                         mlx5_vlan_vmwa_exit(priv->vmwa_context);
1722                 if (eth_dev && priv->drop_queue.hrxq)
1723                         mlx5_drop_action_destroy(eth_dev);
1724                 if (own_domain_id)
1725                         claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1726                 mlx5_cache_list_destroy(&priv->hrxqs);
1727                 mlx5_free(priv);
1728                 if (eth_dev != NULL)
1729                         eth_dev->data->dev_private = NULL;
1730         }
1731         if (eth_dev != NULL) {
1732                 /* mac_addrs must not be freed alone because part of
1733                  * dev_private
1734                  **/
1735                 eth_dev->data->mac_addrs = NULL;
1736                 rte_eth_dev_release_port(eth_dev);
1737         }
1738         if (sh)
1739                 mlx5_free_shared_dev_ctx(sh);
1740         MLX5_ASSERT(err > 0);
1741         rte_errno = err;
1742         return NULL;
1743 }
1744
1745 /**
1746  * Comparison callback to sort device data.
1747  *
1748  * This is meant to be used with qsort().
1749  *
1750  * @param a[in]
1751  *   Pointer to pointer to first data object.
1752  * @param b[in]
1753  *   Pointer to pointer to second data object.
1754  *
1755  * @return
1756  *   0 if both objects are equal, less than 0 if the first argument is less
1757  *   than the second, greater than 0 otherwise.
1758  */
1759 static int
1760 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1761 {
1762         const struct mlx5_switch_info *si_a =
1763                 &((const struct mlx5_dev_spawn_data *)a)->info;
1764         const struct mlx5_switch_info *si_b =
1765                 &((const struct mlx5_dev_spawn_data *)b)->info;
1766         int ret;
1767
1768         /* Master device first. */
1769         ret = si_b->master - si_a->master;
1770         if (ret)
1771                 return ret;
1772         /* Then representor devices. */
1773         ret = si_b->representor - si_a->representor;
1774         if (ret)
1775                 return ret;
1776         /* Unidentified devices come last in no specific order. */
1777         if (!si_a->representor)
1778                 return 0;
1779         /* Order representors by name. */
1780         return si_a->port_name - si_b->port_name;
1781 }
1782
1783 /**
1784  * Match PCI information for possible slaves of bonding device.
1785  *
1786  * @param[in] ibv_dev
1787  *   Pointer to Infiniband device structure.
1788  * @param[in] pci_dev
1789  *   Pointer to primary PCI address structure to match.
1790  * @param[in] nl_rdma
1791  *   Netlink RDMA group socket handle.
1792  * @param[in] owner
1793  *   Rerepsentor owner PF index.
1794  * @param[out] bond_info
1795  *   Pointer to bonding information.
1796  *
1797  * @return
1798  *   negative value if no bonding device found, otherwise
1799  *   positive index of slave PF in bonding.
1800  */
1801 static int
1802 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
1803                            const struct rte_pci_addr *pci_dev,
1804                            int nl_rdma, uint16_t owner,
1805                            struct mlx5_bond_info *bond_info)
1806 {
1807         char ifname[IF_NAMESIZE + 1];
1808         unsigned int ifindex;
1809         unsigned int np, i;
1810         FILE *bond_file = NULL, *file;
1811         int pf = -1;
1812         int ret;
1813
1814         /*
1815          * Try to get master device name. If something goes
1816          * wrong suppose the lack of kernel support and no
1817          * bonding devices.
1818          */
1819         memset(bond_info, 0, sizeof(*bond_info));
1820         if (nl_rdma < 0)
1821                 return -1;
1822         if (!strstr(ibv_dev->name, "bond"))
1823                 return -1;
1824         np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
1825         if (!np)
1826                 return -1;
1827         /*
1828          * The Master device might not be on the predefined
1829          * port (not on port index 1, it is not garanted),
1830          * we have to scan all Infiniband device port and
1831          * find master.
1832          */
1833         for (i = 1; i <= np; ++i) {
1834                 /* Check whether Infiniband port is populated. */
1835                 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
1836                 if (!ifindex)
1837                         continue;
1838                 if (!if_indextoname(ifindex, ifname))
1839                         continue;
1840                 /* Try to read bonding slave names from sysfs. */
1841                 MKSTR(slaves,
1842                       "/sys/class/net/%s/master/bonding/slaves", ifname);
1843                 bond_file = fopen(slaves, "r");
1844                 if (bond_file)
1845                         break;
1846         }
1847         if (!bond_file)
1848                 return -1;
1849         /* Use safe format to check maximal buffer length. */
1850         MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
1851         while (fscanf(bond_file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
1852                 char tmp_str[IF_NAMESIZE + 32];
1853                 struct rte_pci_addr pci_addr;
1854                 struct mlx5_switch_info info;
1855
1856                 /* Process slave interface names in the loop. */
1857                 snprintf(tmp_str, sizeof(tmp_str),
1858                          "/sys/class/net/%s", ifname);
1859                 if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) {
1860                         DRV_LOG(WARNING, "can not get PCI address"
1861                                          " for netdev \"%s\"", ifname);
1862                         continue;
1863                 }
1864                 /* Slave interface PCI address match found. */
1865                 snprintf(tmp_str, sizeof(tmp_str),
1866                          "/sys/class/net/%s/phys_port_name", ifname);
1867                 file = fopen(tmp_str, "rb");
1868                 if (!file)
1869                         break;
1870                 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
1871                 if (fscanf(file, "%32s", tmp_str) == 1)
1872                         mlx5_translate_port_name(tmp_str, &info);
1873                 fclose(file);
1874                 /* Only process PF ports. */
1875                 if (info.name_type != MLX5_PHYS_PORT_NAME_TYPE_LEGACY &&
1876                     info.name_type != MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
1877                         continue;
1878                 /* Check max bonding member. */
1879                 if (info.port_name >= MLX5_BOND_MAX_PORTS) {
1880                         DRV_LOG(WARNING, "bonding index out of range, "
1881                                 "please increase MLX5_BOND_MAX_PORTS: %s",
1882                                 tmp_str);
1883                         break;
1884                 }
1885                 /* Match PCI address, allows BDF0+pfx or BDFx+pfx. */
1886                 if (pci_dev->domain == pci_addr.domain &&
1887                     pci_dev->bus == pci_addr.bus &&
1888                     pci_dev->devid == pci_addr.devid &&
1889                     ((pci_dev->function == 0 &&
1890                       pci_dev->function + owner == pci_addr.function) ||
1891                      (pci_dev->function == owner &&
1892                       pci_addr.function == owner)))
1893                         pf = info.port_name;
1894                 /* Get ifindex. */
1895                 snprintf(tmp_str, sizeof(tmp_str),
1896                          "/sys/class/net/%s/ifindex", ifname);
1897                 file = fopen(tmp_str, "rb");
1898                 if (!file)
1899                         break;
1900                 ret = fscanf(file, "%u", &ifindex);
1901                 fclose(file);
1902                 if (ret != 1)
1903                         break;
1904                 /* Save bonding info. */
1905                 strncpy(bond_info->ports[info.port_name].ifname, ifname,
1906                         sizeof(bond_info->ports[0].ifname));
1907                 bond_info->ports[info.port_name].pci_addr = pci_addr;
1908                 bond_info->ports[info.port_name].ifindex = ifindex;
1909                 bond_info->n_port++;
1910         }
1911         if (pf >= 0) {
1912                 /* Get bond interface info */
1913                 ret = mlx5_sysfs_bond_info(ifindex, &bond_info->ifindex,
1914                                            bond_info->ifname);
1915                 if (ret)
1916                         DRV_LOG(ERR, "unable to get bond info: %s",
1917                                 strerror(rte_errno));
1918                 else
1919                         DRV_LOG(INFO, "PF device %u, bond device %u(%s)",
1920                                 ifindex, bond_info->ifindex, bond_info->ifname);
1921         }
1922         return pf;
1923 }
1924
1925 /**
1926  * Register a PCI device within bonding.
1927  *
1928  * This function spawns Ethernet devices out of a given PCI device and
1929  * bonding owner PF index.
1930  *
1931  * @param[in] pci_dev
1932  *   PCI device information.
1933  * @param[in] req_eth_da
1934  *   Requested ethdev device argument.
1935  * @param[in] owner_id
1936  *   Requested owner PF port ID within bonding device, default to 0.
1937  *
1938  * @return
1939  *   0 on success, a negative errno value otherwise and rte_errno is set.
1940  */
1941 static int
1942 mlx5_os_pci_probe_pf(struct rte_pci_device *pci_dev,
1943                      struct rte_eth_devargs *req_eth_da,
1944                      uint16_t owner_id)
1945 {
1946         struct ibv_device **ibv_list;
1947         /*
1948          * Number of found IB Devices matching with requested PCI BDF.
1949          * nd != 1 means there are multiple IB devices over the same
1950          * PCI device and we have representors and master.
1951          */
1952         unsigned int nd = 0;
1953         /*
1954          * Number of found IB device Ports. nd = 1 and np = 1..n means
1955          * we have the single multiport IB device, and there may be
1956          * representors attached to some of found ports.
1957          */
1958         unsigned int np = 0;
1959         /*
1960          * Number of DPDK ethernet devices to Spawn - either over
1961          * multiple IB devices or multiple ports of single IB device.
1962          * Actually this is the number of iterations to spawn.
1963          */
1964         unsigned int ns = 0;
1965         /*
1966          * Bonding device
1967          *   < 0 - no bonding device (single one)
1968          *  >= 0 - bonding device (value is slave PF index)
1969          */
1970         int bd = -1;
1971         struct mlx5_dev_spawn_data *list = NULL;
1972         struct mlx5_dev_config dev_config;
1973         unsigned int dev_config_vf;
1974         struct rte_eth_devargs eth_da = *req_eth_da;
1975         struct rte_pci_addr owner_pci = pci_dev->addr; /* Owner PF. */
1976         struct mlx5_bond_info bond_info;
1977         int ret = -1;
1978
1979         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
1980                 mlx5_pmd_socket_init();
1981         ret = mlx5_init_once();
1982         if (ret) {
1983                 DRV_LOG(ERR, "unable to init PMD global data: %s",
1984                         strerror(rte_errno));
1985                 return -rte_errno;
1986         }
1987         errno = 0;
1988         ibv_list = mlx5_glue->get_device_list(&ret);
1989         if (!ibv_list) {
1990                 rte_errno = errno ? errno : ENOSYS;
1991                 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
1992                 return -rte_errno;
1993         }
1994         /*
1995          * First scan the list of all Infiniband devices to find
1996          * matching ones, gathering into the list.
1997          */
1998         struct ibv_device *ibv_match[ret + 1];
1999         int nl_route = mlx5_nl_init(NETLINK_ROUTE);
2000         int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
2001         unsigned int i;
2002
2003         while (ret-- > 0) {
2004                 struct rte_pci_addr pci_addr;
2005
2006                 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
2007                 bd = mlx5_device_bond_pci_match
2008                                 (ibv_list[ret], &owner_pci, nl_rdma, owner_id,
2009                                  &bond_info);
2010                 if (bd >= 0) {
2011                         /*
2012                          * Bonding device detected. Only one match is allowed,
2013                          * the bonding is supported over multi-port IB device,
2014                          * there should be no matches on representor PCI
2015                          * functions or non VF LAG bonding devices with
2016                          * specified address.
2017                          */
2018                         if (nd) {
2019                                 DRV_LOG(ERR,
2020                                         "multiple PCI match on bonding device"
2021                                         "\"%s\" found", ibv_list[ret]->name);
2022                                 rte_errno = ENOENT;
2023                                 ret = -rte_errno;
2024                                 goto exit;
2025                         }
2026                         /* Amend owner pci address if owner PF ID specified. */
2027                         if (eth_da.nb_representor_ports)
2028                                 owner_pci.function += owner_id;
2029                         DRV_LOG(INFO, "PCI information matches for"
2030                                       " slave %d bonding device \"%s\"",
2031                                       bd, ibv_list[ret]->name);
2032                         ibv_match[nd++] = ibv_list[ret];
2033                         break;
2034                 } else {
2035                         /* Bonding device not found. */
2036                         if (mlx5_dev_to_pci_addr
2037                                 (ibv_list[ret]->ibdev_path, &pci_addr))
2038                                 continue;
2039                         if (owner_pci.domain != pci_addr.domain ||
2040                             owner_pci.bus != pci_addr.bus ||
2041                             owner_pci.devid != pci_addr.devid ||
2042                             owner_pci.function != pci_addr.function)
2043                                 continue;
2044                         DRV_LOG(INFO, "PCI information matches for device \"%s\"",
2045                                 ibv_list[ret]->name);
2046                         ibv_match[nd++] = ibv_list[ret];
2047                 }
2048         }
2049         ibv_match[nd] = NULL;
2050         if (!nd) {
2051                 /* No device matches, just complain and bail out. */
2052                 DRV_LOG(WARNING,
2053                         "no Verbs device matches PCI device " PCI_PRI_FMT ","
2054                         " are kernel drivers loaded?",
2055                         owner_pci.domain, owner_pci.bus,
2056                         owner_pci.devid, owner_pci.function);
2057                 rte_errno = ENOENT;
2058                 ret = -rte_errno;
2059                 goto exit;
2060         }
2061         if (nd == 1) {
2062                 /*
2063                  * Found single matching device may have multiple ports.
2064                  * Each port may be representor, we have to check the port
2065                  * number and check the representors existence.
2066                  */
2067                 if (nl_rdma >= 0)
2068                         np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
2069                 if (!np)
2070                         DRV_LOG(WARNING, "can not get IB device \"%s\""
2071                                          " ports number", ibv_match[0]->name);
2072                 if (bd >= 0 && !np) {
2073                         DRV_LOG(ERR, "can not get ports"
2074                                      " for bonding device");
2075                         rte_errno = ENOENT;
2076                         ret = -rte_errno;
2077                         goto exit;
2078                 }
2079         }
2080 #ifndef HAVE_MLX5DV_DR_DEVX_PORT
2081         if (bd >= 0) {
2082                 /*
2083                  * This may happen if there is VF LAG kernel support and
2084                  * application is compiled with older rdma_core library.
2085                  */
2086                 DRV_LOG(ERR,
2087                         "No kernel/verbs support for VF LAG bonding found.");
2088                 rte_errno = ENOTSUP;
2089                 ret = -rte_errno;
2090                 goto exit;
2091         }
2092 #endif
2093         /*
2094          * Now we can determine the maximal
2095          * amount of devices to be spawned.
2096          */
2097         list = mlx5_malloc(MLX5_MEM_ZERO,
2098                            sizeof(struct mlx5_dev_spawn_data) *
2099                            (np ? np : nd),
2100                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
2101         if (!list) {
2102                 DRV_LOG(ERR, "spawn data array allocation failure");
2103                 rte_errno = ENOMEM;
2104                 ret = -rte_errno;
2105                 goto exit;
2106         }
2107         if (bd >= 0 || np > 1) {
2108                 /*
2109                  * Single IB device with multiple ports found,
2110                  * it may be E-Switch master device and representors.
2111                  * We have to perform identification through the ports.
2112                  */
2113                 MLX5_ASSERT(nl_rdma >= 0);
2114                 MLX5_ASSERT(ns == 0);
2115                 MLX5_ASSERT(nd == 1);
2116                 MLX5_ASSERT(np);
2117                 for (i = 1; i <= np; ++i) {
2118                         list[ns].bond_info = &bond_info;
2119                         list[ns].max_port = np;
2120                         list[ns].phys_port = i;
2121                         list[ns].phys_dev = ibv_match[0];
2122                         list[ns].eth_dev = NULL;
2123                         list[ns].pci_dev = pci_dev;
2124                         list[ns].pf_bond = bd;
2125                         list[ns].ifindex = mlx5_nl_ifindex
2126                                 (nl_rdma,
2127                                 mlx5_os_get_dev_device_name
2128                                                 (list[ns].phys_dev), i);
2129                         if (!list[ns].ifindex) {
2130                                 /*
2131                                  * No network interface index found for the
2132                                  * specified port, it means there is no
2133                                  * representor on this port. It's OK,
2134                                  * there can be disabled ports, for example
2135                                  * if sriov_numvfs < sriov_totalvfs.
2136                                  */
2137                                 continue;
2138                         }
2139                         ret = -1;
2140                         if (nl_route >= 0)
2141                                 ret = mlx5_nl_switch_info
2142                                                (nl_route,
2143                                                 list[ns].ifindex,
2144                                                 &list[ns].info);
2145                         if (ret || (!list[ns].info.representor &&
2146                                     !list[ns].info.master)) {
2147                                 /*
2148                                  * We failed to recognize representors with
2149                                  * Netlink, let's try to perform the task
2150                                  * with sysfs.
2151                                  */
2152                                 ret =  mlx5_sysfs_switch_info
2153                                                 (list[ns].ifindex,
2154                                                  &list[ns].info);
2155                         }
2156 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
2157                         if (!ret && bd >= 0) {
2158                                 switch (list[ns].info.name_type) {
2159                                 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
2160                                         if (list[ns].info.port_name == bd)
2161                                                 ns++;
2162                                         break;
2163                                 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
2164                                         /* Fallthrough */
2165                                 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
2166                                         /* Fallthrough */
2167                                 case MLX5_PHYS_PORT_NAME_TYPE_PFSF:
2168                                         if (list[ns].info.pf_num == bd)
2169                                                 ns++;
2170                                         break;
2171                                 default:
2172                                         break;
2173                                 }
2174                                 continue;
2175                         }
2176 #endif
2177                         if (!ret && (list[ns].info.representor ^
2178                                      list[ns].info.master))
2179                                 ns++;
2180                 }
2181                 if (!ns) {
2182                         DRV_LOG(ERR,
2183                                 "unable to recognize master/representors"
2184                                 " on the IB device with multiple ports");
2185                         rte_errno = ENOENT;
2186                         ret = -rte_errno;
2187                         goto exit;
2188                 }
2189         } else {
2190                 /*
2191                  * The existence of several matching entries (nd > 1) means
2192                  * port representors have been instantiated. No existing Verbs
2193                  * call nor sysfs entries can tell them apart, this can only
2194                  * be done through Netlink calls assuming kernel drivers are
2195                  * recent enough to support them.
2196                  *
2197                  * In the event of identification failure through Netlink,
2198                  * try again through sysfs, then:
2199                  *
2200                  * 1. A single IB device matches (nd == 1) with single
2201                  *    port (np=0/1) and is not a representor, assume
2202                  *    no switch support.
2203                  *
2204                  * 2. Otherwise no safe assumptions can be made;
2205                  *    complain louder and bail out.
2206                  */
2207                 for (i = 0; i != nd; ++i) {
2208                         memset(&list[ns].info, 0, sizeof(list[ns].info));
2209                         list[ns].bond_info = NULL;
2210                         list[ns].max_port = 1;
2211                         list[ns].phys_port = 1;
2212                         list[ns].phys_dev = ibv_match[i];
2213                         list[ns].eth_dev = NULL;
2214                         list[ns].pci_dev = pci_dev;
2215                         list[ns].pf_bond = -1;
2216                         list[ns].ifindex = 0;
2217                         if (nl_rdma >= 0)
2218                                 list[ns].ifindex = mlx5_nl_ifindex
2219                                 (nl_rdma,
2220                                 mlx5_os_get_dev_device_name
2221                                                 (list[ns].phys_dev), 1);
2222                         if (!list[ns].ifindex) {
2223                                 char ifname[IF_NAMESIZE];
2224
2225                                 /*
2226                                  * Netlink failed, it may happen with old
2227                                  * ib_core kernel driver (before 4.16).
2228                                  * We can assume there is old driver because
2229                                  * here we are processing single ports IB
2230                                  * devices. Let's try sysfs to retrieve
2231                                  * the ifindex. The method works for
2232                                  * master device only.
2233                                  */
2234                                 if (nd > 1) {
2235                                         /*
2236                                          * Multiple devices found, assume
2237                                          * representors, can not distinguish
2238                                          * master/representor and retrieve
2239                                          * ifindex via sysfs.
2240                                          */
2241                                         continue;
2242                                 }
2243                                 ret = mlx5_get_ifname_sysfs
2244                                         (ibv_match[i]->ibdev_path, ifname);
2245                                 if (!ret)
2246                                         list[ns].ifindex =
2247                                                 if_nametoindex(ifname);
2248                                 if (!list[ns].ifindex) {
2249                                         /*
2250                                          * No network interface index found
2251                                          * for the specified device, it means
2252                                          * there it is neither representor
2253                                          * nor master.
2254                                          */
2255                                         continue;
2256                                 }
2257                         }
2258                         ret = -1;
2259                         if (nl_route >= 0)
2260                                 ret = mlx5_nl_switch_info
2261                                                (nl_route,
2262                                                 list[ns].ifindex,
2263                                                 &list[ns].info);
2264                         if (ret || (!list[ns].info.representor &&
2265                                     !list[ns].info.master)) {
2266                                 /*
2267                                  * We failed to recognize representors with
2268                                  * Netlink, let's try to perform the task
2269                                  * with sysfs.
2270                                  */
2271                                 ret =  mlx5_sysfs_switch_info
2272                                                 (list[ns].ifindex,
2273                                                  &list[ns].info);
2274                         }
2275                         if (!ret && (list[ns].info.representor ^
2276                                      list[ns].info.master)) {
2277                                 ns++;
2278                         } else if ((nd == 1) &&
2279                                    !list[ns].info.representor &&
2280                                    !list[ns].info.master) {
2281                                 /*
2282                                  * Single IB device with
2283                                  * one physical port and
2284                                  * attached network device.
2285                                  * May be SRIOV is not enabled
2286                                  * or there is no representors.
2287                                  */
2288                                 DRV_LOG(INFO, "no E-Switch support detected");
2289                                 ns++;
2290                                 break;
2291                         }
2292                 }
2293                 if (!ns) {
2294                         DRV_LOG(ERR,
2295                                 "unable to recognize master/representors"
2296                                 " on the multiple IB devices");
2297                         rte_errno = ENOENT;
2298                         ret = -rte_errno;
2299                         goto exit;
2300                 }
2301                 /*
2302                  * New kernels may add the switch_id attribute for the case
2303                  * there is no E-Switch and we wrongly recognized the
2304                  * only device as master. Override this if there is the
2305                  * single device with single port and new device name
2306                  * format present.
2307                  */
2308                 if (nd == 1 &&
2309                     list[0].info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) {
2310                         list[0].info.master = 0;
2311                         list[0].info.representor = 0;
2312                 }
2313         }
2314         MLX5_ASSERT(ns);
2315         /*
2316          * Sort list to probe devices in natural order for users convenience
2317          * (i.e. master first, then representors from lowest to highest ID).
2318          */
2319         qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
2320         /* Device specific configuration. */
2321         switch (pci_dev->id.device_id) {
2322         case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
2323         case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
2324         case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
2325         case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
2326         case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
2327         case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
2328         case PCI_DEVICE_ID_MELLANOX_CONNECTXVF:
2329                 dev_config_vf = 1;
2330                 break;
2331         default:
2332                 dev_config_vf = 0;
2333                 break;
2334         }
2335         if (eth_da.type != RTE_ETH_REPRESENTOR_NONE) {
2336                 /* Set devargs default values. */
2337                 if (eth_da.nb_mh_controllers == 0) {
2338                         eth_da.nb_mh_controllers = 1;
2339                         eth_da.mh_controllers[0] = 0;
2340                 }
2341                 if (eth_da.nb_ports == 0 && ns > 0) {
2342                         if (list[0].pf_bond >= 0 && list[0].info.representor)
2343                                 DRV_LOG(WARNING, "Representor on Bonding device should use pf#vf# syntax: %s",
2344                                         pci_dev->device.devargs->args);
2345                         eth_da.nb_ports = 1;
2346                         eth_da.ports[0] = list[0].info.pf_num;
2347                 }
2348                 if (eth_da.nb_representor_ports == 0) {
2349                         eth_da.nb_representor_ports = 1;
2350                         eth_da.representor_ports[0] = 0;
2351                 }
2352         }
2353         for (i = 0; i != ns; ++i) {
2354                 uint32_t restore;
2355
2356                 /* Default configuration. */
2357                 memset(&dev_config, 0, sizeof(struct mlx5_dev_config));
2358                 dev_config.vf = dev_config_vf;
2359                 dev_config.mps = MLX5_ARG_UNSET;
2360                 dev_config.dbnc = MLX5_ARG_UNSET;
2361                 dev_config.rx_vec_en = 1;
2362                 dev_config.txq_inline_max = MLX5_ARG_UNSET;
2363                 dev_config.txq_inline_min = MLX5_ARG_UNSET;
2364                 dev_config.txq_inline_mpw = MLX5_ARG_UNSET;
2365                 dev_config.txqs_inline = MLX5_ARG_UNSET;
2366                 dev_config.vf_nl_en = 1;
2367                 dev_config.mr_ext_memseg_en = 1;
2368                 dev_config.mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN;
2369                 dev_config.mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS;
2370                 dev_config.dv_esw_en = 1;
2371                 dev_config.dv_flow_en = 1;
2372                 dev_config.decap_en = 1;
2373                 dev_config.log_hp_size = MLX5_ARG_UNSET;
2374                 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
2375                                                  &list[i],
2376                                                  &dev_config,
2377                                                  &eth_da);
2378                 if (!list[i].eth_dev) {
2379                         if (rte_errno != EBUSY && rte_errno != EEXIST)
2380                                 break;
2381                         /* Device is disabled or already spawned. Ignore it. */
2382                         continue;
2383                 }
2384                 restore = list[i].eth_dev->data->dev_flags;
2385                 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
2386                 /* Restore non-PCI flags cleared by the above call. */
2387                 list[i].eth_dev->data->dev_flags |= restore;
2388                 rte_eth_dev_probing_finish(list[i].eth_dev);
2389         }
2390         if (i != ns) {
2391                 DRV_LOG(ERR,
2392                         "probe of PCI device " PCI_PRI_FMT " aborted after"
2393                         " encountering an error: %s",
2394                         owner_pci.domain, owner_pci.bus,
2395                         owner_pci.devid, owner_pci.function,
2396                         strerror(rte_errno));
2397                 ret = -rte_errno;
2398                 /* Roll back. */
2399                 while (i--) {
2400                         if (!list[i].eth_dev)
2401                                 continue;
2402                         mlx5_dev_close(list[i].eth_dev);
2403                         /* mac_addrs must not be freed because in dev_private */
2404                         list[i].eth_dev->data->mac_addrs = NULL;
2405                         claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
2406                 }
2407                 /* Restore original error. */
2408                 rte_errno = -ret;
2409         } else {
2410                 ret = 0;
2411         }
2412 exit:
2413         /*
2414          * Do the routine cleanup:
2415          * - close opened Netlink sockets
2416          * - free allocated spawn data array
2417          * - free the Infiniband device list
2418          */
2419         if (nl_rdma >= 0)
2420                 close(nl_rdma);
2421         if (nl_route >= 0)
2422                 close(nl_route);
2423         if (list)
2424                 mlx5_free(list);
2425         MLX5_ASSERT(ibv_list);
2426         mlx5_glue->free_device_list(ibv_list);
2427         return ret;
2428 }
2429
2430 /**
2431  * DPDK callback to register a PCI device.
2432  *
2433  * This function spawns Ethernet devices out of a given PCI device.
2434  *
2435  * @param[in] pci_drv
2436  *   PCI driver structure (mlx5_driver).
2437  * @param[in] pci_dev
2438  *   PCI device information.
2439  *
2440  * @return
2441  *   0 on success, a negative errno value otherwise and rte_errno is set.
2442  */
2443 int
2444 mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2445                   struct rte_pci_device *pci_dev)
2446 {
2447         struct rte_eth_devargs eth_da = { .type = RTE_ETH_REPRESENTOR_NONE };
2448         int ret = 0;
2449         uint16_t p;
2450
2451         if (pci_dev->device.devargs) {
2452                 /* Parse representor information from device argument. */
2453                 if (pci_dev->device.devargs->cls_str)
2454                         ret = rte_eth_devargs_parse
2455                                 (pci_dev->device.devargs->cls_str, &eth_da);
2456                 if (ret) {
2457                         DRV_LOG(ERR, "failed to parse device arguments: %s",
2458                                 pci_dev->device.devargs->cls_str);
2459                         return -rte_errno;
2460                 }
2461                 if (eth_da.type == RTE_ETH_REPRESENTOR_NONE) {
2462                         /* Support legacy device argument */
2463                         ret = rte_eth_devargs_parse
2464                                 (pci_dev->device.devargs->args, &eth_da);
2465                         if (ret) {
2466                                 DRV_LOG(ERR, "failed to parse device arguments: %s",
2467                                         pci_dev->device.devargs->args);
2468                                 return -rte_errno;
2469                         }
2470                 }
2471         }
2472
2473         if (eth_da.nb_ports > 0) {
2474                 /* Iterate all port if devargs pf is range: "pf[0-1]vf[...]". */
2475                 for (p = 0; p < eth_da.nb_ports; p++)
2476                         ret = mlx5_os_pci_probe_pf(pci_dev, &eth_da,
2477                                                    eth_da.ports[p]);
2478         } else {
2479                 ret = mlx5_os_pci_probe_pf(pci_dev, &eth_da, 0);
2480         }
2481         return ret;
2482 }
2483
2484 static int
2485 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
2486 {
2487         char *env;
2488         int value;
2489
2490         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2491         /* Get environment variable to store. */
2492         env = getenv(MLX5_SHUT_UP_BF);
2493         value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
2494         if (config->dbnc == MLX5_ARG_UNSET)
2495                 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
2496         else
2497                 setenv(MLX5_SHUT_UP_BF,
2498                        config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
2499         return value;
2500 }
2501
2502 static void
2503 mlx5_restore_doorbell_mapping_env(int value)
2504 {
2505         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2506         /* Restore the original environment variable state. */
2507         if (value == MLX5_ARG_UNSET)
2508                 unsetenv(MLX5_SHUT_UP_BF);
2509         else
2510                 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
2511 }
2512
2513 /**
2514  * Extract pdn of PD object using DV API.
2515  *
2516  * @param[in] pd
2517  *   Pointer to the verbs PD object.
2518  * @param[out] pdn
2519  *   Pointer to the PD object number variable.
2520  *
2521  * @return
2522  *   0 on success, error value otherwise.
2523  */
2524 int
2525 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
2526 {
2527 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
2528         struct mlx5dv_obj obj;
2529         struct mlx5dv_pd pd_info;
2530         int ret = 0;
2531
2532         obj.pd.in = pd;
2533         obj.pd.out = &pd_info;
2534         ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
2535         if (ret) {
2536                 DRV_LOG(DEBUG, "Fail to get PD object info");
2537                 return ret;
2538         }
2539         *pdn = pd_info.pdn;
2540         return 0;
2541 #else
2542         (void)pd;
2543         (void)pdn;
2544         return -ENOTSUP;
2545 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
2546 }
2547
2548 /**
2549  * Function API to open IB device.
2550  *
2551  * This function calls the Linux glue APIs to open a device.
2552  *
2553  * @param[in] spawn
2554  *   Pointer to the IB device attributes (name, port, etc).
2555  * @param[out] config
2556  *   Pointer to device configuration structure.
2557  * @param[out] sh
2558  *   Pointer to shared context structure.
2559  *
2560  * @return
2561  *   0 on success, a positive error value otherwise.
2562  */
2563 int
2564 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
2565                      const struct mlx5_dev_config *config,
2566                      struct mlx5_dev_ctx_shared *sh)
2567 {
2568         int dbmap_env;
2569         int err = 0;
2570
2571         sh->numa_node = spawn->pci_dev->device.numa_node;
2572         pthread_mutex_init(&sh->txpp.mutex, NULL);
2573         /*
2574          * Configure environment variable "MLX5_BF_SHUT_UP"
2575          * before the device creation. The rdma_core library
2576          * checks the variable at device creation and
2577          * stores the result internally.
2578          */
2579         dbmap_env = mlx5_config_doorbell_mapping_env(config);
2580         /* Try to open IB device with DV first, then usual Verbs. */
2581         errno = 0;
2582         sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
2583         if (sh->ctx) {
2584                 sh->devx = 1;
2585                 DRV_LOG(DEBUG, "DevX is supported");
2586                 /* The device is created, no need for environment. */
2587                 mlx5_restore_doorbell_mapping_env(dbmap_env);
2588         } else {
2589                 /* The environment variable is still configured. */
2590                 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
2591                 err = errno ? errno : ENODEV;
2592                 /*
2593                  * The environment variable is not needed anymore,
2594                  * all device creation attempts are completed.
2595                  */
2596                 mlx5_restore_doorbell_mapping_env(dbmap_env);
2597                 if (!sh->ctx)
2598                         return err;
2599                 DRV_LOG(DEBUG, "DevX is NOT supported");
2600                 err = 0;
2601         }
2602         if (!err && sh->ctx) {
2603                 /* Hint libmlx5 to use PMD allocator for data plane resources */
2604                 mlx5_glue->dv_set_context_attr(sh->ctx,
2605                         MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
2606                         (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
2607                                 .alloc = &mlx5_alloc_verbs_buf,
2608                                 .free = &mlx5_free_verbs_buf,
2609                                 .data = sh,
2610                         }));
2611         }
2612         return err;
2613 }
2614
2615 /**
2616  * Install shared asynchronous device events handler.
2617  * This function is implemented to support event sharing
2618  * between multiple ports of single IB device.
2619  *
2620  * @param sh
2621  *   Pointer to mlx5_dev_ctx_shared object.
2622  */
2623 void
2624 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
2625 {
2626         int ret;
2627         int flags;
2628
2629         sh->intr_handle.fd = -1;
2630         flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
2631         ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
2632                     F_SETFL, flags | O_NONBLOCK);
2633         if (ret) {
2634                 DRV_LOG(INFO, "failed to change file descriptor async event"
2635                         " queue");
2636         } else {
2637                 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
2638                 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
2639                 if (rte_intr_callback_register(&sh->intr_handle,
2640                                         mlx5_dev_interrupt_handler, sh)) {
2641                         DRV_LOG(INFO, "Fail to install the shared interrupt.");
2642                         sh->intr_handle.fd = -1;
2643                 }
2644         }
2645         if (sh->devx) {
2646 #ifdef HAVE_IBV_DEVX_ASYNC
2647                 sh->intr_handle_devx.fd = -1;
2648                 sh->devx_comp =
2649                         (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
2650                 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2651                 if (!devx_comp) {
2652                         DRV_LOG(INFO, "failed to allocate devx_comp.");
2653                         return;
2654                 }
2655                 flags = fcntl(devx_comp->fd, F_GETFL);
2656                 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2657                 if (ret) {
2658                         DRV_LOG(INFO, "failed to change file descriptor"
2659                                 " devx comp");
2660                         return;
2661                 }
2662                 sh->intr_handle_devx.fd = devx_comp->fd;
2663                 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
2664                 if (rte_intr_callback_register(&sh->intr_handle_devx,
2665                                         mlx5_dev_interrupt_handler_devx, sh)) {
2666                         DRV_LOG(INFO, "Fail to install the devx shared"
2667                                 " interrupt.");
2668                         sh->intr_handle_devx.fd = -1;
2669                 }
2670 #endif /* HAVE_IBV_DEVX_ASYNC */
2671         }
2672 }
2673
2674 /**
2675  * Uninstall shared asynchronous device events handler.
2676  * This function is implemented to support event sharing
2677  * between multiple ports of single IB device.
2678  *
2679  * @param dev
2680  *   Pointer to mlx5_dev_ctx_shared object.
2681  */
2682 void
2683 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
2684 {
2685         if (sh->intr_handle.fd >= 0)
2686                 mlx5_intr_callback_unregister(&sh->intr_handle,
2687                                               mlx5_dev_interrupt_handler, sh);
2688 #ifdef HAVE_IBV_DEVX_ASYNC
2689         if (sh->intr_handle_devx.fd >= 0)
2690                 rte_intr_callback_unregister(&sh->intr_handle_devx,
2691                                   mlx5_dev_interrupt_handler_devx, sh);
2692         if (sh->devx_comp)
2693                 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
2694 #endif
2695 }
2696
2697 /**
2698  * Read statistics by a named counter.
2699  *
2700  * @param[in] priv
2701  *   Pointer to the private device data structure.
2702  * @param[in] ctr_name
2703  *   Pointer to the name of the statistic counter to read
2704  * @param[out] stat
2705  *   Pointer to read statistic value.
2706  * @return
2707  *   0 on success and stat is valud, 1 if failed to read the value
2708  *   rte_errno is set.
2709  *
2710  */
2711 int
2712 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2713                       uint64_t *stat)
2714 {
2715         int fd;
2716
2717         if (priv->sh) {
2718                 if (priv->q_counters != NULL &&
2719                     strcmp(ctr_name, "out_of_buffer") == 0)
2720                         return mlx5_devx_cmd_queue_counter_query
2721                                         (priv->q_counters, 0, (uint32_t *)stat);
2722                 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2723                       priv->sh->ibdev_path,
2724                       priv->dev_port,
2725                       ctr_name);
2726                 fd = open(path, O_RDONLY);
2727                 /*
2728                  * in switchdev the file location is not per port
2729                  * but rather in <ibdev_path>/hw_counters/<file_name>.
2730                  */
2731                 if (fd == -1) {
2732                         MKSTR(path1, "%s/hw_counters/%s",
2733                               priv->sh->ibdev_path,
2734                               ctr_name);
2735                         fd = open(path1, O_RDONLY);
2736                 }
2737                 if (fd != -1) {
2738                         char buf[21] = {'\0'};
2739                         ssize_t n = read(fd, buf, sizeof(buf));
2740
2741                         close(fd);
2742                         if (n != -1) {
2743                                 *stat = strtoull(buf, NULL, 10);
2744                                 return 0;
2745                         }
2746                 }
2747         }
2748         *stat = 0;
2749         return 1;
2750 }
2751
2752 /**
2753  * Set the reg_mr and dereg_mr call backs
2754  *
2755  * @param reg_mr_cb[out]
2756  *   Pointer to reg_mr func
2757  * @param dereg_mr_cb[out]
2758  *   Pointer to dereg_mr func
2759  *
2760  */
2761 void
2762 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
2763                       mlx5_dereg_mr_t *dereg_mr_cb)
2764 {
2765         *reg_mr_cb = mlx5_mr_verbs_ops.reg_mr;
2766         *dereg_mr_cb = mlx5_mr_verbs_ops.dereg_mr;
2767 }
2768
2769 /**
2770  * Remove a MAC address from device
2771  *
2772  * @param dev
2773  *   Pointer to Ethernet device structure.
2774  * @param index
2775  *   MAC address index.
2776  */
2777 void
2778 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
2779 {
2780         struct mlx5_priv *priv = dev->data->dev_private;
2781         const int vf = priv->config.vf;
2782
2783         if (vf)
2784                 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
2785                                         mlx5_ifindex(dev), priv->mac_own,
2786                                         &dev->data->mac_addrs[index], index);
2787 }
2788
2789 /**
2790  * Adds a MAC address to the device
2791  *
2792  * @param dev
2793  *   Pointer to Ethernet device structure.
2794  * @param mac_addr
2795  *   MAC address to register.
2796  * @param index
2797  *   MAC address index.
2798  *
2799  * @return
2800  *   0 on success, a negative errno value otherwise
2801  */
2802 int
2803 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
2804                      uint32_t index)
2805 {
2806         struct mlx5_priv *priv = dev->data->dev_private;
2807         const int vf = priv->config.vf;
2808         int ret = 0;
2809
2810         if (vf)
2811                 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
2812                                            mlx5_ifindex(dev), priv->mac_own,
2813                                            mac, index);
2814         return ret;
2815 }
2816
2817 /**
2818  * Modify a VF MAC address
2819  *
2820  * @param priv
2821  *   Pointer to device private data.
2822  * @param mac_addr
2823  *   MAC address to modify into.
2824  * @param iface_idx
2825  *   Net device interface index
2826  * @param vf_index
2827  *   VF index
2828  *
2829  * @return
2830  *   0 on success, a negative errno value otherwise
2831  */
2832 int
2833 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
2834                            unsigned int iface_idx,
2835                            struct rte_ether_addr *mac_addr,
2836                            int vf_index)
2837 {
2838         return mlx5_nl_vf_mac_addr_modify
2839                 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
2840 }
2841
2842 /**
2843  * Set device promiscuous mode
2844  *
2845  * @param dev
2846  *   Pointer to Ethernet device structure.
2847  * @param enable
2848  *   0 - promiscuous is disabled, otherwise - enabled
2849  *
2850  * @return
2851  *   0 on success, a negative error value otherwise
2852  */
2853 int
2854 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
2855 {
2856         struct mlx5_priv *priv = dev->data->dev_private;
2857
2858         return mlx5_nl_promisc(priv->nl_socket_route,
2859                                mlx5_ifindex(dev), !!enable);
2860 }
2861
2862 /**
2863  * Set device promiscuous mode
2864  *
2865  * @param dev
2866  *   Pointer to Ethernet device structure.
2867  * @param enable
2868  *   0 - all multicase is disabled, otherwise - enabled
2869  *
2870  * @return
2871  *   0 on success, a negative error value otherwise
2872  */
2873 int
2874 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
2875 {
2876         struct mlx5_priv *priv = dev->data->dev_private;
2877
2878         return mlx5_nl_allmulti(priv->nl_socket_route,
2879                                 mlx5_ifindex(dev), !!enable);
2880 }
2881
2882 /**
2883  * Flush device MAC addresses
2884  *
2885  * @param dev
2886  *   Pointer to Ethernet device structure.
2887  *
2888  */
2889 void
2890 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev)
2891 {
2892         struct mlx5_priv *priv = dev->data->dev_private;
2893
2894         mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
2895                                dev->data->mac_addrs,
2896                                MLX5_MAX_MAC_ADDRESSES, priv->mac_own);
2897 }