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