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_bus_auxiliary.h>
  24 #include <rte_common.h>
  25 #include <rte_kvargs.h>
  26 #include <rte_rwlock.h>
  27 #include <rte_spinlock.h>
  28 #include <rte_string_fns.h>
  29 #include <rte_alarm.h>
  30 #include <rte_eal_paging.h>
  31
  32 #include <mlx5_glue.h>
  33 #include <mlx5_devx_cmds.h>
  34 #include <mlx5_common.h>
  35 #include <mlx5_common_mp.h>
  36 #include <mlx5_common_mr.h>
  37 #include <mlx5_malloc.h>
  38
  39 #include "mlx5_defs.h"
  40 #include "mlx5.h"
  41 #include "mlx5_common_os.h"
  42 #include "mlx5_utils.h"
  43 #include "mlx5_rxtx.h"
  44 #include "mlx5_rx.h"
  45 #include "mlx5_tx.h"
  46 #include "mlx5_autoconf.h"
  47 #include "mlx5_mr.h"
  48 #include "mlx5_flow.h"
  49 #include "rte_pmd_mlx5.h"
  50 #include "mlx5_verbs.h"
  51 #include "mlx5_nl.h"
  52 #include "mlx5_devx.h"
  53
  54 #ifndef HAVE_IBV_MLX5_MOD_MPW
  55 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
  56 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
  57 #endif
  58
  59 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
  60 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
  61 #endif
  62
  63 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
  64
  65 /* Spinlock for mlx5_shared_data allocation. */
  66 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
  67
  68 /* Process local data for secondary processes. */
  69 static struct mlx5_local_data mlx5_local_data;
  70
  71 /* rte flow indexed pool configuration. */
  72 static struct mlx5_indexed_pool_config icfg[] = {
  73         {
  74                 .size = sizeof(struct rte_flow),
  75                 .trunk_size = 64,
  76                 .need_lock = 1,
  77                 .release_mem_en = 0,
  78                 .malloc = mlx5_malloc,
  79                 .free = mlx5_free,
  80                 .per_core_cache = 0,
  81                 .type = "ctl_flow_ipool",
  82         },
  83         {
  84                 .size = sizeof(struct rte_flow),
  85                 .trunk_size = 64,
  86                 .grow_trunk = 3,
  87                 .grow_shift = 2,
  88                 .need_lock = 1,
  89                 .release_mem_en = 0,
  90                 .malloc = mlx5_malloc,
  91                 .free = mlx5_free,
  92                 .per_core_cache = 1 << 14,
  93                 .type = "rte_flow_ipool",
  94         },
  95         {
  96                 .size = sizeof(struct rte_flow),
  97                 .trunk_size = 64,
  98                 .grow_trunk = 3,
  99                 .grow_shift = 2,
 100                 .need_lock = 1,
 101                 .release_mem_en = 0,
 102                 .malloc = mlx5_malloc,
 103                 .free = mlx5_free,
 104                 .per_core_cache = 0,
 105                 .type = "mcp_flow_ipool",
 106         },
 107 };
 108
 109 /**
 110  * Set the completion channel file descriptor interrupt as non-blocking.
 111  *
 112  * @param[in] rxq_obj
 113  *   Pointer to RQ channel object, which includes the channel fd
 114  *
 115  * @param[out] fd
 116  *   The file descriptor (representing the intetrrupt) used in this channel.
 117  *
 118  * @return
 119  *   0 on successfully setting the fd to non-blocking, non-zero otherwise.
 120  */
 121 int
 122 mlx5_os_set_nonblock_channel_fd(int fd)
 123 {
 124         int flags;
 125
 126         flags = fcntl(fd, F_GETFL);
 127         return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
 128 }
 129
 130 /**
 131  * Get mlx5 device attributes. The glue function query_device_ex() is called
 132  * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
 133  * device attributes from the glue out parameter.
 134  *
 135  * @param dev
 136  *   Pointer to ibv context.
 137  *
 138  * @param device_attr
 139  *   Pointer to mlx5 device attributes.
 140  *
 141  * @return
 142  *   0 on success, non zero error number otherwise
 143  */
 144 int
 145 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
 146 {
 147         int err;
 148         struct ibv_device_attr_ex attr_ex;
 149         memset(device_attr, 0, sizeof(*device_attr));
 150         err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
 151         if (err)
 152                 return err;
 153
 154         device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
 155         device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
 156         device_attr->max_sge = attr_ex.orig_attr.max_sge;
 157         device_attr->max_cq = attr_ex.orig_attr.max_cq;
 158         device_attr->max_cqe = attr_ex.orig_attr.max_cqe;
 159         device_attr->max_mr = attr_ex.orig_attr.max_mr;
 160         device_attr->max_pd = attr_ex.orig_attr.max_pd;
 161         device_attr->max_qp = attr_ex.orig_attr.max_qp;
 162         device_attr->max_srq = attr_ex.orig_attr.max_srq;
 163         device_attr->max_srq_wr = attr_ex.orig_attr.max_srq_wr;
 164         device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
 165         device_attr->max_rwq_indirection_table_size =
 166                 attr_ex.rss_caps.max_rwq_indirection_table_size;
 167         device_attr->max_tso = attr_ex.tso_caps.max_tso;
 168         device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
 169
 170         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 171         err = mlx5_glue->dv_query_device(ctx, &dv_attr);
 172         if (err)
 173                 return err;
 174
 175         device_attr->flags = dv_attr.flags;
 176         device_attr->comp_mask = dv_attr.comp_mask;
 177 #ifdef HAVE_IBV_MLX5_MOD_SWP
 178         device_attr->sw_parsing_offloads =
 179                 dv_attr.sw_parsing_caps.sw_parsing_offloads;
 180 #endif
 181         device_attr->min_single_stride_log_num_of_bytes =
 182                 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
 183         device_attr->max_single_stride_log_num_of_bytes =
 184                 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
 185         device_attr->min_single_wqe_log_num_of_strides =
 186                 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
 187         device_attr->max_single_wqe_log_num_of_strides =
 188                 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
 189         device_attr->stride_supported_qpts =
 190                 dv_attr.striding_rq_caps.supported_qpts;
 191 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 192         device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
 193 #endif
 194         strlcpy(device_attr->fw_ver, attr_ex.orig_attr.fw_ver,
 195                 sizeof(device_attr->fw_ver));
 196
 197         return err;
 198 }
 199
 200 /**
 201  * Verbs callback to allocate a memory. This function should allocate the space
 202  * according to the size provided residing inside a huge page.
 203  * Please note that all allocation must respect the alignment from libmlx5
 204  * (i.e. currently rte_mem_page_size()).
 205  *
 206  * @param[in] size
 207  *   The size in bytes of the memory to allocate.
 208  * @param[in] data
 209  *   A pointer to the callback data.
 210  *
 211  * @return
 212  *   Allocated buffer, NULL otherwise and rte_errno is set.
 213  */
 214 static void *
 215 mlx5_alloc_verbs_buf(size_t size, void *data)
 216 {
 217         struct mlx5_dev_ctx_shared *sh = data;
 218         void *ret;
 219         size_t alignment = rte_mem_page_size();
 220         if (alignment == (size_t)-1) {
 221                 DRV_LOG(ERR, "Failed to get mem page size");
 222                 rte_errno = ENOMEM;
 223                 return NULL;
 224         }
 225
 226         MLX5_ASSERT(data != NULL);
 227         ret = mlx5_malloc(0, size, alignment, sh->numa_node);
 228         if (!ret && size)
 229                 rte_errno = ENOMEM;
 230         return ret;
 231 }
 232
 233 /**
 234  * Detect misc5 support or not
 235  *
 236  * @param[in] priv
 237  *   Device private data pointer
 238  */
 239 #ifdef HAVE_MLX5DV_DR
 240 static void
 241 __mlx5_discovery_misc5_cap(struct mlx5_priv *priv)
 242 {
 243 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 244         /* Dummy VxLAN matcher to detect rdma-core misc5 cap
 245          * Case: IPv4--->UDP--->VxLAN--->vni
 246          */
 247         void *tbl;
 248         struct mlx5_flow_dv_match_params matcher_mask;
 249         void *match_m;
 250         void *matcher;
 251         void *headers_m;
 252         void *misc5_m;
 253         uint32_t *tunnel_header_m;
 254         struct mlx5dv_flow_matcher_attr dv_attr;
 255
 256         memset(&matcher_mask, 0, sizeof(matcher_mask));
 257         matcher_mask.size = sizeof(matcher_mask.buf);
 258         match_m = matcher_mask.buf;
 259         headers_m = MLX5_ADDR_OF(fte_match_param, match_m, outer_headers);
 260         misc5_m = MLX5_ADDR_OF(fte_match_param,
 261                                match_m, misc_parameters_5);
 262         tunnel_header_m = (uint32_t *)
 263                                 MLX5_ADDR_OF(fte_match_set_misc5,
 264                                 misc5_m, tunnel_header_1);
 265         MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
 266         MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 4);
 267         MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport, 0xffff);
 268         *tunnel_header_m = 0xffffff;
 269
 270         tbl = mlx5_glue->dr_create_flow_tbl(priv->sh->rx_domain, 1);
 271         if (!tbl) {
 272                 DRV_LOG(INFO, "No SW steering support");
 273                 return;
 274         }
 275         dv_attr.type = IBV_FLOW_ATTR_NORMAL,
 276         dv_attr.match_mask = (void *)&matcher_mask,
 277         dv_attr.match_criteria_enable =
 278                         (1 << MLX5_MATCH_CRITERIA_ENABLE_OUTER_BIT) |
 279                         (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC5_BIT);
 280         dv_attr.priority = 3;
 281 #ifdef HAVE_MLX5DV_DR_ESWITCH
 282         void *misc2_m;
 283         if (priv->config.dv_esw_en) {
 284                 /* FDB enabled reg_c_0 */
 285                 dv_attr.match_criteria_enable |=
 286                                 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC2_BIT);
 287                 misc2_m = MLX5_ADDR_OF(fte_match_param,
 288                                        match_m, misc_parameters_2);
 289                 MLX5_SET(fte_match_set_misc2, misc2_m,
 290                          metadata_reg_c_0, 0xffff);
 291         }
 292 #endif
 293         matcher = mlx5_glue->dv_create_flow_matcher(priv->sh->ctx,
 294                                                     &dv_attr, tbl);
 295         if (matcher) {
 296                 priv->sh->misc5_cap = 1;
 297                 mlx5_glue->dv_destroy_flow_matcher(matcher);
 298         }
 299         mlx5_glue->dr_destroy_flow_tbl(tbl);
 300 #else
 301         RTE_SET_USED(priv);
 302 #endif
 303 }
 304 #endif
 305
 306 /**
 307  * Verbs callback to free a memory.
 308  *
 309  * @param[in] ptr
 310  *   A pointer to the memory to free.
 311  * @param[in] data
 312  *   A pointer to the callback data.
 313  */
 314 static void
 315 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
 316 {
 317         MLX5_ASSERT(data != NULL);
 318         mlx5_free(ptr);
 319 }
 320
 321 /**
 322  * Initialize DR related data within private structure.
 323  * Routine checks the reference counter and does actual
 324  * resources creation/initialization only if counter is zero.
 325  *
 326  * @param[in] priv
 327  *   Pointer to the private device data structure.
 328  *
 329  * @return
 330  *   Zero on success, positive error code otherwise.
 331  */
 332 static int
 333 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 334 {
 335         struct mlx5_dev_ctx_shared *sh = priv->sh;
 336         char s[MLX5_NAME_SIZE] __rte_unused;
 337         int err;
 338
 339         MLX5_ASSERT(sh && sh->refcnt);
 340         if (sh->refcnt > 1)
 341                 return 0;
 342         err = mlx5_alloc_table_hash_list(priv);
 343         if (err)
 344                 goto error;
 345         /* The resources below are only valid with DV support. */
 346 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 347         /* Init port id action list. */
 348         snprintf(s, sizeof(s), "%s_port_id_action_list", sh->ibdev_name);
 349         sh->port_id_action_list = mlx5_list_create(s, sh, true,
 350                                                    flow_dv_port_id_create_cb,
 351                                                    flow_dv_port_id_match_cb,
 352                                                    flow_dv_port_id_remove_cb,
 353                                                    flow_dv_port_id_clone_cb,
 354                                                  flow_dv_port_id_clone_free_cb);
 355         if (!sh->port_id_action_list)
 356                 goto error;
 357         /* Init push vlan action list. */
 358         snprintf(s, sizeof(s), "%s_push_vlan_action_list", sh->ibdev_name);
 359         sh->push_vlan_action_list = mlx5_list_create(s, sh, true,
 360                                                     flow_dv_push_vlan_create_cb,
 361                                                     flow_dv_push_vlan_match_cb,
 362                                                     flow_dv_push_vlan_remove_cb,
 363                                                     flow_dv_push_vlan_clone_cb,
 364                                                flow_dv_push_vlan_clone_free_cb);
 365         if (!sh->push_vlan_action_list)
 366                 goto error;
 367         /* Init sample action list. */
 368         snprintf(s, sizeof(s), "%s_sample_action_list", sh->ibdev_name);
 369         sh->sample_action_list = mlx5_list_create(s, sh, true,
 370                                                   flow_dv_sample_create_cb,
 371                                                   flow_dv_sample_match_cb,
 372                                                   flow_dv_sample_remove_cb,
 373                                                   flow_dv_sample_clone_cb,
 374                                                   flow_dv_sample_clone_free_cb);
 375         if (!sh->sample_action_list)
 376                 goto error;
 377         /* Init dest array action list. */
 378         snprintf(s, sizeof(s), "%s_dest_array_list", sh->ibdev_name);
 379         sh->dest_array_list = mlx5_list_create(s, sh, true,
 380                                                flow_dv_dest_array_create_cb,
 381                                                flow_dv_dest_array_match_cb,
 382                                                flow_dv_dest_array_remove_cb,
 383                                                flow_dv_dest_array_clone_cb,
 384                                               flow_dv_dest_array_clone_free_cb);
 385         if (!sh->dest_array_list)
 386                 goto error;
 387 #endif
 388 #ifdef HAVE_MLX5DV_DR
 389         void *domain;
 390
 391         /* Reference counter is zero, we should initialize structures. */
 392         domain = mlx5_glue->dr_create_domain(sh->ctx,
 393                                              MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
 394         if (!domain) {
 395                 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
 396                 err = errno;
 397                 goto error;
 398         }
 399         sh->rx_domain = domain;
 400         domain = mlx5_glue->dr_create_domain(sh->ctx,
 401                                              MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
 402         if (!domain) {
 403                 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
 404                 err = errno;
 405                 goto error;
 406         }
 407         sh->tx_domain = domain;
 408 #ifdef HAVE_MLX5DV_DR_ESWITCH
 409         if (priv->config.dv_esw_en) {
 410                 domain  = mlx5_glue->dr_create_domain
 411                         (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
 412                 if (!domain) {
 413                         DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
 414                         err = errno;
 415                         goto error;
 416                 }
 417                 sh->fdb_domain = domain;
 418         }
 419         /*
 420          * The drop action is just some dummy placeholder in rdma-core. It
 421          * does not belong to domains and has no any attributes, and, can be
 422          * shared by the entire device.
 423          */
 424         sh->dr_drop_action = mlx5_glue->dr_create_flow_action_drop();
 425         if (!sh->dr_drop_action) {
 426                 DRV_LOG(ERR, "FDB mlx5dv_dr_create_flow_action_drop");
 427                 err = errno;
 428                 goto error;
 429         }
 430 #endif
 431         if (!sh->tunnel_hub && priv->config.dv_miss_info)
 432                 err = mlx5_alloc_tunnel_hub(sh);
 433         if (err) {
 434                 DRV_LOG(ERR, "mlx5_alloc_tunnel_hub failed err=%d", err);
 435                 goto error;
 436         }
 437         if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
 438                 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
 439                 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
 440                 if (sh->fdb_domain)
 441                         mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
 442         }
 443         sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
 444         if (!priv->config.allow_duplicate_pattern) {
 445 #ifndef HAVE_MLX5_DR_ALLOW_DUPLICATE
 446                 DRV_LOG(WARNING, "Disallow duplicate pattern is not supported - maybe old rdma-core version?");
 447 #endif
 448                 mlx5_glue->dr_allow_duplicate_rules(sh->rx_domain, 0);
 449                 mlx5_glue->dr_allow_duplicate_rules(sh->tx_domain, 0);
 450                 if (sh->fdb_domain)
 451                         mlx5_glue->dr_allow_duplicate_rules(sh->fdb_domain, 0);
 452         }
 453
 454         __mlx5_discovery_misc5_cap(priv);
 455 #endif /* HAVE_MLX5DV_DR */
 456         sh->default_miss_action =
 457                         mlx5_glue->dr_create_flow_action_default_miss();
 458         if (!sh->default_miss_action)
 459                 DRV_LOG(WARNING, "Default miss action is not supported.");
 460         return 0;
 461 error:
 462         /* Rollback the created objects. */
 463         if (sh->rx_domain) {
 464                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 465                 sh->rx_domain = NULL;
 466         }
 467         if (sh->tx_domain) {
 468                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 469                 sh->tx_domain = NULL;
 470         }
 471         if (sh->fdb_domain) {
 472                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 473                 sh->fdb_domain = NULL;
 474         }
 475         if (sh->dr_drop_action) {
 476                 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
 477                 sh->dr_drop_action = NULL;
 478         }
 479         if (sh->pop_vlan_action) {
 480                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 481                 sh->pop_vlan_action = NULL;
 482         }
 483         if (sh->encaps_decaps) {
 484                 mlx5_hlist_destroy(sh->encaps_decaps);
 485                 sh->encaps_decaps = NULL;
 486         }
 487         if (sh->modify_cmds) {
 488                 mlx5_hlist_destroy(sh->modify_cmds);
 489                 sh->modify_cmds = NULL;
 490         }
 491         if (sh->tag_table) {
 492                 /* tags should be destroyed with flow before. */
 493                 mlx5_hlist_destroy(sh->tag_table);
 494                 sh->tag_table = NULL;
 495         }
 496         if (sh->tunnel_hub) {
 497                 mlx5_release_tunnel_hub(sh, priv->dev_port);
 498                 sh->tunnel_hub = NULL;
 499         }
 500         mlx5_free_table_hash_list(priv);
 501         if (sh->port_id_action_list) {
 502                 mlx5_list_destroy(sh->port_id_action_list);
 503                 sh->port_id_action_list = NULL;
 504         }
 505         if (sh->push_vlan_action_list) {
 506                 mlx5_list_destroy(sh->push_vlan_action_list);
 507                 sh->push_vlan_action_list = NULL;
 508         }
 509         if (sh->sample_action_list) {
 510                 mlx5_list_destroy(sh->sample_action_list);
 511                 sh->sample_action_list = NULL;
 512         }
 513         if (sh->dest_array_list) {
 514                 mlx5_list_destroy(sh->dest_array_list);
 515                 sh->dest_array_list = NULL;
 516         }
 517         return err;
 518 }
 519
 520 /**
 521  * Destroy DR related data within private structure.
 522  *
 523  * @param[in] priv
 524  *   Pointer to the private device data structure.
 525  */
 526 void
 527 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
 528 {
 529         struct mlx5_dev_ctx_shared *sh = priv->sh;
 530
 531         MLX5_ASSERT(sh && sh->refcnt);
 532         if (sh->refcnt > 1)
 533                 return;
 534 #ifdef HAVE_MLX5DV_DR
 535         if (sh->rx_domain) {
 536                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 537                 sh->rx_domain = NULL;
 538         }
 539         if (sh->tx_domain) {
 540                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 541                 sh->tx_domain = NULL;
 542         }
 543 #ifdef HAVE_MLX5DV_DR_ESWITCH
 544         if (sh->fdb_domain) {
 545                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 546                 sh->fdb_domain = NULL;
 547         }
 548         if (sh->dr_drop_action) {
 549                 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
 550                 sh->dr_drop_action = NULL;
 551         }
 552 #endif
 553         if (sh->pop_vlan_action) {
 554                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 555                 sh->pop_vlan_action = NULL;
 556         }
 557 #endif /* HAVE_MLX5DV_DR */
 558         if (sh->default_miss_action)
 559                 mlx5_glue->destroy_flow_action
 560                                 (sh->default_miss_action);
 561         if (sh->encaps_decaps) {
 562                 mlx5_hlist_destroy(sh->encaps_decaps);
 563                 sh->encaps_decaps = NULL;
 564         }
 565         if (sh->modify_cmds) {
 566                 mlx5_hlist_destroy(sh->modify_cmds);
 567                 sh->modify_cmds = NULL;
 568         }
 569         if (sh->tag_table) {
 570                 /* tags should be destroyed with flow before. */
 571                 mlx5_hlist_destroy(sh->tag_table);
 572                 sh->tag_table = NULL;
 573         }
 574         if (sh->tunnel_hub) {
 575                 mlx5_release_tunnel_hub(sh, priv->dev_port);
 576                 sh->tunnel_hub = NULL;
 577         }
 578         mlx5_free_table_hash_list(priv);
 579         if (sh->port_id_action_list) {
 580                 mlx5_list_destroy(sh->port_id_action_list);
 581                 sh->port_id_action_list = NULL;
 582         }
 583         if (sh->push_vlan_action_list) {
 584                 mlx5_list_destroy(sh->push_vlan_action_list);
 585                 sh->push_vlan_action_list = NULL;
 586         }
 587         if (sh->sample_action_list) {
 588                 mlx5_list_destroy(sh->sample_action_list);
 589                 sh->sample_action_list = NULL;
 590         }
 591         if (sh->dest_array_list) {
 592                 mlx5_list_destroy(sh->dest_array_list);
 593                 sh->dest_array_list = NULL;
 594         }
 595 }
 596
 597 /**
 598  * Initialize shared data between primary and secondary process.
 599  *
 600  * A memzone is reserved by primary process and secondary processes attach to
 601  * the memzone.
 602  *
 603  * @return
 604  *   0 on success, a negative errno value otherwise and rte_errno is set.
 605  */
 606 static int
 607 mlx5_init_shared_data(void)
 608 {
 609         const struct rte_memzone *mz;
 610         int ret = 0;
 611
 612         rte_spinlock_lock(&mlx5_shared_data_lock);
 613         if (mlx5_shared_data == NULL) {
 614                 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 615                         /* Allocate shared memory. */
 616                         mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
 617                                                  sizeof(*mlx5_shared_data),
 618                                                  SOCKET_ID_ANY, 0);
 619                         if (mz == NULL) {
 620                                 DRV_LOG(ERR,
 621                                         "Cannot allocate mlx5 shared data");
 622                                 ret = -rte_errno;
 623                                 goto error;
 624                         }
 625                         mlx5_shared_data = mz->addr;
 626                         memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
 627                         rte_spinlock_init(&mlx5_shared_data->lock);
 628                 } else {
 629                         /* Lookup allocated shared memory. */
 630                         mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
 631                         if (mz == NULL) {
 632                                 DRV_LOG(ERR,
 633                                         "Cannot attach mlx5 shared data");
 634                                 ret = -rte_errno;
 635                                 goto error;
 636                         }
 637                         mlx5_shared_data = mz->addr;
 638                         memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
 639                 }
 640         }
 641 error:
 642         rte_spinlock_unlock(&mlx5_shared_data_lock);
 643         return ret;
 644 }
 645
 646 /**
 647  * PMD global initialization.
 648  *
 649  * Independent from individual device, this function initializes global
 650  * per-PMD data structures distinguishing primary and secondary processes.
 651  * Hence, each initialization is called once per a process.
 652  *
 653  * @return
 654  *   0 on success, a negative errno value otherwise and rte_errno is set.
 655  */
 656 static int
 657 mlx5_init_once(void)
 658 {
 659         struct mlx5_shared_data *sd;
 660         struct mlx5_local_data *ld = &mlx5_local_data;
 661         int ret = 0;
 662
 663         if (mlx5_init_shared_data())
 664                 return -rte_errno;
 665         sd = mlx5_shared_data;
 666         MLX5_ASSERT(sd);
 667         rte_spinlock_lock(&sd->lock);
 668         switch (rte_eal_process_type()) {
 669         case RTE_PROC_PRIMARY:
 670                 if (sd->init_done)
 671                         break;
 672                 LIST_INIT(&sd->mem_event_cb_list);
 673                 rte_rwlock_init(&sd->mem_event_rwlock);
 674                 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
 675                                                 mlx5_mr_mem_event_cb, NULL);
 676                 ret = mlx5_mp_init_primary(MLX5_MP_NAME,
 677                                            mlx5_mp_os_primary_handle);
 678                 if (ret)
 679                         goto out;
 680                 sd->init_done = true;
 681                 break;
 682         case RTE_PROC_SECONDARY:
 683                 if (ld->init_done)
 684                         break;
 685                 ret = mlx5_mp_init_secondary(MLX5_MP_NAME,
 686                                              mlx5_mp_os_secondary_handle);
 687                 if (ret)
 688                         goto out;
 689                 ++sd->secondary_cnt;
 690                 ld->init_done = true;
 691                 break;
 692         default:
 693                 break;
 694         }
 695 out:
 696         rte_spinlock_unlock(&sd->lock);
 697         return ret;
 698 }
 699
 700 /**
 701  * Create the Tx queue DevX/Verbs object.
 702  *
 703  * @param dev
 704  *   Pointer to Ethernet device.
 705  * @param idx
 706  *   Queue index in DPDK Tx queue array.
 707  *
 708  * @return
 709  *   0 on success, a negative errno value otherwise and rte_errno is set.
 710  */
 711 static int
 712 mlx5_os_txq_obj_new(struct rte_eth_dev *dev, uint16_t idx)
 713 {
 714         struct mlx5_priv *priv = dev->data->dev_private;
 715         struct mlx5_txq_data *txq_data = (*priv->txqs)[idx];
 716         struct mlx5_txq_ctrl *txq_ctrl =
 717                         container_of(txq_data, struct mlx5_txq_ctrl, txq);
 718
 719         if (txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN)
 720                 return mlx5_txq_devx_obj_new(dev, idx);
 721 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
 722         if (!priv->config.dv_esw_en)
 723                 return mlx5_txq_devx_obj_new(dev, idx);
 724 #endif
 725         return mlx5_txq_ibv_obj_new(dev, idx);
 726 }
 727
 728 /**
 729  * Release an Tx DevX/verbs queue object.
 730  *
 731  * @param txq_obj
 732  *   DevX/Verbs Tx queue object.
 733  */
 734 static void
 735 mlx5_os_txq_obj_release(struct mlx5_txq_obj *txq_obj)
 736 {
 737         if (txq_obj->txq_ctrl->type == MLX5_TXQ_TYPE_HAIRPIN) {
 738                 mlx5_txq_devx_obj_release(txq_obj);
 739                 return;
 740         }
 741 #ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
 742         if (!txq_obj->txq_ctrl->priv->config.dv_esw_en) {
 743                 mlx5_txq_devx_obj_release(txq_obj);
 744                 return;
 745         }
 746 #endif
 747         mlx5_txq_ibv_obj_release(txq_obj);
 748 }
 749
 750 /**
 751  * DV flow counter mode detect and config.
 752  *
 753  * @param dev
 754  *   Pointer to rte_eth_dev structure.
 755  *
 756  */
 757 static void
 758 mlx5_flow_counter_mode_config(struct rte_eth_dev *dev __rte_unused)
 759 {
 760 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 761         struct mlx5_priv *priv = dev->data->dev_private;
 762         struct mlx5_dev_ctx_shared *sh = priv->sh;
 763         bool fallback;
 764
 765 #ifndef HAVE_IBV_DEVX_ASYNC
 766         fallback = true;
 767 #else
 768         fallback = false;
 769         if (!priv->config.devx || !priv->config.dv_flow_en ||
 770             !priv->config.hca_attr.flow_counters_dump ||
 771             !(priv->config.hca_attr.flow_counter_bulk_alloc_bitmap & 0x4) ||
 772             (mlx5_flow_dv_discover_counter_offset_support(dev) == -ENOTSUP))
 773                 fallback = true;
 774 #endif
 775         if (fallback)
 776                 DRV_LOG(INFO, "Use fall-back DV counter management. Flow "
 777                         "counter dump:%d, bulk_alloc_bitmap:0x%hhx.",
 778                         priv->config.hca_attr.flow_counters_dump,
 779                         priv->config.hca_attr.flow_counter_bulk_alloc_bitmap);
 780         /* Initialize fallback mode only on the port initializes sh. */
 781         if (sh->refcnt == 1)
 782                 sh->cmng.counter_fallback = fallback;
 783         else if (fallback != sh->cmng.counter_fallback)
 784                 DRV_LOG(WARNING, "Port %d in sh has different fallback mode "
 785                         "with others:%d.", PORT_ID(priv), fallback);
 786 #endif
 787 }
 788
 789 /**
 790  * DR flow drop action support detect.
 791  *
 792  * @param dev
 793  *   Pointer to rte_eth_dev structure.
 794  *
 795  */
 796 static void
 797 mlx5_flow_drop_action_config(struct rte_eth_dev *dev __rte_unused)
 798 {
 799 #ifdef HAVE_MLX5DV_DR
 800         struct mlx5_priv *priv = dev->data->dev_private;
 801
 802         if (!priv->config.dv_flow_en || !priv->sh->dr_drop_action)
 803                 return;
 804         /**
 805          * DR supports drop action placeholder when it is supported;
 806          * otherwise, use the queue drop action.
 807          */
 808         if (mlx5_flow_discover_dr_action_support(dev))
 809                 priv->root_drop_action = priv->drop_queue.hrxq->action;
 810         else
 811                 priv->root_drop_action = priv->sh->dr_drop_action;
 812 #endif
 813 }
 814
 815 static void
 816 mlx5_queue_counter_id_prepare(struct rte_eth_dev *dev)
 817 {
 818         struct mlx5_priv *priv = dev->data->dev_private;
 819         void *ctx = priv->sh->ctx;
 820
 821         priv->q_counters = mlx5_devx_cmd_queue_counter_alloc(ctx);
 822         if (!priv->q_counters) {
 823                 struct ibv_cq *cq = mlx5_glue->create_cq(ctx, 1, NULL, NULL, 0);
 824                 struct ibv_wq *wq;
 825
 826                 DRV_LOG(DEBUG, "Port %d queue counter object cannot be created "
 827                         "by DevX - fall-back to use the kernel driver global "
 828                         "queue counter.", dev->data->port_id);
 829                 /* Create WQ by kernel and query its queue counter ID. */
 830                 if (cq) {
 831                         wq = mlx5_glue->create_wq(ctx,
 832                                                   &(struct ibv_wq_init_attr){
 833                                                     .wq_type = IBV_WQT_RQ,
 834                                                     .max_wr = 1,
 835                                                     .max_sge = 1,
 836                                                     .pd = priv->sh->pd,
 837                                                     .cq = cq,
 838                                                 });
 839                         if (wq) {
 840                                 /* Counter is assigned only on RDY state. */
 841                                 int ret = mlx5_glue->modify_wq(wq,
 842                                                  &(struct ibv_wq_attr){
 843                                                  .attr_mask = IBV_WQ_ATTR_STATE,
 844                                                  .wq_state = IBV_WQS_RDY,
 845                                                 });
 846
 847                                 if (ret == 0)
 848                                         mlx5_devx_cmd_wq_query(wq,
 849                                                          &priv->counter_set_id);
 850                                 claim_zero(mlx5_glue->destroy_wq(wq));
 851                         }
 852                         claim_zero(mlx5_glue->destroy_cq(cq));
 853                 }
 854         } else {
 855                 priv->counter_set_id = priv->q_counters->id;
 856         }
 857         if (priv->counter_set_id == 0)
 858                 DRV_LOG(INFO, "Part of the port %d statistics will not be "
 859                         "available.", dev->data->port_id);
 860 }
 861
 862 /**
 863  * Check if representor spawn info match devargs.
 864  *
 865  * @param spawn
 866  *   Verbs device parameters (name, port, switch_info) to spawn.
 867  * @param eth_da
 868  *   Device devargs to probe.
 869  *
 870  * @return
 871  *   Match result.
 872  */
 873 static bool
 874 mlx5_representor_match(struct mlx5_dev_spawn_data *spawn,
 875                        struct rte_eth_devargs *eth_da)
 876 {
 877         struct mlx5_switch_info *switch_info = &spawn->info;
 878         unsigned int p, f;
 879         uint16_t id;
 880         uint16_t repr_id = mlx5_representor_id_encode(switch_info,
 881                                                       eth_da->type);
 882
 883         switch (eth_da->type) {
 884         case RTE_ETH_REPRESENTOR_SF:
 885                 if (!(spawn->info.port_name == -1 &&
 886                       switch_info->name_type ==
 887                                 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
 888                     switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFSF) {
 889                         rte_errno = EBUSY;
 890                         return false;
 891                 }
 892                 break;
 893         case RTE_ETH_REPRESENTOR_VF:
 894                 /* Allows HPF representor index -1 as exception. */
 895                 if (!(spawn->info.port_name == -1 &&
 896                       switch_info->name_type ==
 897                                 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
 898                     switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFVF) {
 899                         rte_errno = EBUSY;
 900                         return false;
 901                 }
 902                 break;
 903         case RTE_ETH_REPRESENTOR_NONE:
 904                 rte_errno = EBUSY;
 905                 return false;
 906         default:
 907                 rte_errno = ENOTSUP;
 908                 DRV_LOG(ERR, "unsupported representor type");
 909                 return false;
 910         }
 911         /* Check representor ID: */
 912         for (p = 0; p < eth_da->nb_ports; ++p) {
 913                 if (spawn->pf_bond < 0) {
 914                         /* For non-LAG mode, allow and ignore pf. */
 915                         switch_info->pf_num = eth_da->ports[p];
 916                         repr_id = mlx5_representor_id_encode(switch_info,
 917                                                              eth_da->type);
 918                 }
 919                 for (f = 0; f < eth_da->nb_representor_ports; ++f) {
 920                         id = MLX5_REPRESENTOR_ID
 921                                 (eth_da->ports[p], eth_da->type,
 922                                  eth_da->representor_ports[f]);
 923                         if (repr_id == id)
 924                                 return true;
 925                 }
 926         }
 927         rte_errno = EBUSY;
 928         return false;
 929 }
 930
 931
 932 /**
 933  * Spawn an Ethernet device from Verbs information.
 934  *
 935  * @param dpdk_dev
 936  *   Backing DPDK device.
 937  * @param spawn
 938  *   Verbs device parameters (name, port, switch_info) to spawn.
 939  * @param config
 940  *   Device configuration parameters.
 941  * @param config
 942  *   Device arguments.
 943  *
 944  * @return
 945  *   A valid Ethernet device object on success, NULL otherwise and rte_errno
 946  *   is set. The following errors are defined:
 947  *
 948  *   EBUSY: device is not supposed to be spawned.
 949  *   EEXIST: device is already spawned
 950  */
 951 static struct rte_eth_dev *
 952 mlx5_dev_spawn(struct rte_device *dpdk_dev,
 953                struct mlx5_dev_spawn_data *spawn,
 954                struct mlx5_dev_config *config,
 955                struct rte_eth_devargs *eth_da)
 956 {
 957         const struct mlx5_switch_info *switch_info = &spawn->info;
 958         struct mlx5_dev_ctx_shared *sh = NULL;
 959         struct ibv_port_attr port_attr;
 960         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 961         struct rte_eth_dev *eth_dev = NULL;
 962         struct mlx5_priv *priv = NULL;
 963         int err = 0;
 964         unsigned int hw_padding = 0;
 965         unsigned int mps;
 966         unsigned int tunnel_en = 0;
 967         unsigned int mpls_en = 0;
 968         unsigned int swp = 0;
 969         unsigned int mprq = 0;
 970         unsigned int mprq_min_stride_size_n = 0;
 971         unsigned int mprq_max_stride_size_n = 0;
 972         unsigned int mprq_min_stride_num_n = 0;
 973         unsigned int mprq_max_stride_num_n = 0;
 974         struct rte_ether_addr mac;
 975         char name[RTE_ETH_NAME_MAX_LEN];
 976         int own_domain_id = 0;
 977         uint16_t port_id;
 978         struct mlx5_port_info vport_info = { .query_flags = 0 };
 979         int i;
 980
 981         /* Determine if this port representor is supposed to be spawned. */
 982         if (switch_info->representor && dpdk_dev->devargs &&
 983             !mlx5_representor_match(spawn, eth_da))
 984                 return NULL;
 985         /* Build device name. */
 986         if (spawn->pf_bond < 0) {
 987                 /* Single device. */
 988                 if (!switch_info->representor)
 989                         strlcpy(name, dpdk_dev->name, sizeof(name));
 990                 else
 991                         err = snprintf(name, sizeof(name), "%s_representor_%s%u",
 992                                  dpdk_dev->name,
 993                                  switch_info->name_type ==
 994                                  MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
 995                                  switch_info->port_name);
 996         } else {
 997                 /* Bonding device. */
 998                 if (!switch_info->representor) {
 999                         err = snprintf(name, sizeof(name), "%s_%s",
1000                                  dpdk_dev->name,
1001                                  mlx5_os_get_dev_device_name(spawn->phys_dev));
1002                 } else {
1003                         err = snprintf(name, sizeof(name), "%s_%s_representor_c%dpf%d%s%u",
1004                                 dpdk_dev->name,
1005                                 mlx5_os_get_dev_device_name(spawn->phys_dev),
1006                                 switch_info->ctrl_num,
1007                                 switch_info->pf_num,
1008                                 switch_info->name_type ==
1009                                 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
1010                                 switch_info->port_name);
1011                 }
1012         }
1013         if (err >= (int)sizeof(name))
1014                 DRV_LOG(WARNING, "device name overflow %s", name);
1015         /* check if the device is already spawned */
1016         if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
1017                 rte_errno = EEXIST;
1018                 return NULL;
1019         }
1020         DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
1021         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
1022                 struct mlx5_mp_id mp_id;
1023
1024                 eth_dev = rte_eth_dev_attach_secondary(name);
1025                 if (eth_dev == NULL) {
1026                         DRV_LOG(ERR, "can not attach rte ethdev");
1027                         rte_errno = ENOMEM;
1028                         return NULL;
1029                 }
1030                 eth_dev->device = dpdk_dev;
1031                 eth_dev->dev_ops = &mlx5_dev_sec_ops;
1032                 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1033                 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1034                 err = mlx5_proc_priv_init(eth_dev);
1035                 if (err)
1036                         return NULL;
1037                 mlx5_mp_id_init(&mp_id, eth_dev->data->port_id);
1038                 /* Receive command fd from primary process */
1039                 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
1040                 if (err < 0)
1041                         goto err_secondary;
1042                 /* Remap UAR for Tx queues. */
1043                 err = mlx5_tx_uar_init_secondary(eth_dev, err);
1044                 if (err)
1045                         goto err_secondary;
1046                 /*
1047                  * Ethdev pointer is still required as input since
1048                  * the primary device is not accessible from the
1049                  * secondary process.
1050                  */
1051                 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
1052                 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
1053                 return eth_dev;
1054 err_secondary:
1055                 mlx5_dev_close(eth_dev);
1056                 return NULL;
1057         }
1058         /*
1059          * Some parameters ("tx_db_nc" in particularly) are needed in
1060          * advance to create dv/verbs device context. We proceed the
1061          * devargs here to get ones, and later proceed devargs again
1062          * to override some hardware settings.
1063          */
1064         err = mlx5_args(config, dpdk_dev->devargs);
1065         if (err) {
1066                 err = rte_errno;
1067                 DRV_LOG(ERR, "failed to process device arguments: %s",
1068                         strerror(rte_errno));
1069                 goto error;
1070         }
1071         if (config->dv_miss_info) {
1072                 if (switch_info->master || switch_info->representor)
1073                         config->dv_xmeta_en = MLX5_XMETA_MODE_META16;
1074         }
1075         mlx5_malloc_mem_select(config->sys_mem_en);
1076         sh = mlx5_alloc_shared_dev_ctx(spawn, config);
1077         if (!sh)
1078                 return NULL;
1079         config->devx = sh->devx;
1080 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
1081         config->dest_tir = 1;
1082 #endif
1083 #ifdef HAVE_IBV_MLX5_MOD_SWP
1084         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
1085 #endif
1086         /*
1087          * Multi-packet send is supported by ConnectX-4 Lx PF as well
1088          * as all ConnectX-5 devices.
1089          */
1090 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1091         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
1092 #endif
1093 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1094         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
1095 #endif
1096         mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
1097         if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
1098                 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
1099                         DRV_LOG(DEBUG, "enhanced MPW is supported");
1100                         mps = MLX5_MPW_ENHANCED;
1101                 } else {
1102                         DRV_LOG(DEBUG, "MPW is supported");
1103                         mps = MLX5_MPW;
1104                 }
1105         } else {
1106                 DRV_LOG(DEBUG, "MPW isn't supported");
1107                 mps = MLX5_MPW_DISABLED;
1108         }
1109 #ifdef HAVE_IBV_MLX5_MOD_SWP
1110         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
1111                 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
1112         DRV_LOG(DEBUG, "SWP support: %u", swp);
1113 #endif
1114         config->swp = swp & (MLX5_SW_PARSING_CAP | MLX5_SW_PARSING_CSUM_CAP |
1115                 MLX5_SW_PARSING_TSO_CAP);
1116 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
1117         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
1118                 struct mlx5dv_striding_rq_caps mprq_caps =
1119                         dv_attr.striding_rq_caps;
1120
1121                 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
1122                         mprq_caps.min_single_stride_log_num_of_bytes);
1123                 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
1124                         mprq_caps.max_single_stride_log_num_of_bytes);
1125                 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
1126                         mprq_caps.min_single_wqe_log_num_of_strides);
1127                 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
1128                         mprq_caps.max_single_wqe_log_num_of_strides);
1129                 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
1130                         mprq_caps.supported_qpts);
1131                 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
1132                 mprq = 1;
1133                 mprq_min_stride_size_n =
1134                         mprq_caps.min_single_stride_log_num_of_bytes;
1135                 mprq_max_stride_size_n =
1136                         mprq_caps.max_single_stride_log_num_of_bytes;
1137                 mprq_min_stride_num_n =
1138                         mprq_caps.min_single_wqe_log_num_of_strides;
1139                 mprq_max_stride_num_n =
1140                         mprq_caps.max_single_wqe_log_num_of_strides;
1141         }
1142 #endif
1143         /* Rx CQE compression is enabled by default. */
1144         config->cqe_comp = 1;
1145 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
1146         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
1147                 tunnel_en = ((dv_attr.tunnel_offloads_caps &
1148                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
1149                              (dv_attr.tunnel_offloads_caps &
1150                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
1151                              (dv_attr.tunnel_offloads_caps &
1152                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
1153         }
1154         DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
1155                 tunnel_en ? "" : "not ");
1156 #else
1157         DRV_LOG(WARNING,
1158                 "tunnel offloading disabled due to old OFED/rdma-core version");
1159 #endif
1160         config->tunnel_en = tunnel_en;
1161 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
1162         mpls_en = ((dv_attr.tunnel_offloads_caps &
1163                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
1164                    (dv_attr.tunnel_offloads_caps &
1165                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
1166         DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
1167                 mpls_en ? "" : "not ");
1168 #else
1169         DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
1170                 " old OFED/rdma-core version or firmware configuration");
1171 #endif
1172         config->mpls_en = mpls_en;
1173         /* Check port status. */
1174         err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
1175         if (err) {
1176                 DRV_LOG(ERR, "port query failed: %s", strerror(err));
1177                 goto error;
1178         }
1179         if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
1180                 DRV_LOG(ERR, "port is not configured in Ethernet mode");
1181                 err = EINVAL;
1182                 goto error;
1183         }
1184         if (port_attr.state != IBV_PORT_ACTIVE)
1185                 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
1186                         mlx5_glue->port_state_str(port_attr.state),
1187                         port_attr.state);
1188         /* Allocate private eth device data. */
1189         priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
1190                            sizeof(*priv),
1191                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1192         if (priv == NULL) {
1193                 DRV_LOG(ERR, "priv allocation failure");
1194                 err = ENOMEM;
1195                 goto error;
1196         }
1197         priv->sh = sh;
1198         priv->dev_port = spawn->phys_port;
1199         priv->pci_dev = spawn->pci_dev;
1200         priv->mtu = RTE_ETHER_MTU;
1201         /* Some internal functions rely on Netlink sockets, open them now. */
1202         priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
1203         priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
1204         priv->representor = !!switch_info->representor;
1205         priv->master = !!switch_info->master;
1206         priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
1207         priv->vport_meta_tag = 0;
1208         priv->vport_meta_mask = 0;
1209         priv->pf_bond = spawn->pf_bond;
1210
1211         DRV_LOG(DEBUG,
1212                 "dev_port=%u bus=%s pci=%s master=%d representor=%d pf_bond=%d\n",
1213                 priv->dev_port, dpdk_dev->bus->name,
1214                 priv->pci_dev ? priv->pci_dev->name : "NONE",
1215                 priv->master, priv->representor, priv->pf_bond);
1216
1217         /*
1218          * If we have E-Switch we should determine the vport attributes.
1219          * E-Switch may use either source vport field or reg_c[0] metadata
1220          * register to match on vport index. The engaged part of metadata
1221          * register is defined by mask.
1222          */
1223         if (switch_info->representor || switch_info->master) {
1224                 err = mlx5_glue->devx_port_query(sh->ctx,
1225                                                  spawn->phys_port,
1226                                                  &vport_info);
1227                 if (err) {
1228                         DRV_LOG(WARNING,
1229                                 "can't query devx port %d on device %s",
1230                                 spawn->phys_port,
1231                                 mlx5_os_get_dev_device_name(spawn->phys_dev));
1232                         vport_info.query_flags = 0;
1233                 }
1234         }
1235         if (vport_info.query_flags & MLX5_PORT_QUERY_REG_C0) {
1236                 priv->vport_meta_tag = vport_info.vport_meta_tag;
1237                 priv->vport_meta_mask = vport_info.vport_meta_mask;
1238                 if (!priv->vport_meta_mask) {
1239                         DRV_LOG(ERR, "vport zero mask for port %d"
1240                                      " on bonding device %s",
1241                                      spawn->phys_port,
1242                                      mlx5_os_get_dev_device_name
1243                                                         (spawn->phys_dev));
1244                         err = ENOTSUP;
1245                         goto error;
1246                 }
1247                 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
1248                         DRV_LOG(ERR, "invalid vport tag for port %d"
1249                                      " on bonding device %s",
1250                                      spawn->phys_port,
1251                                      mlx5_os_get_dev_device_name
1252                                                         (spawn->phys_dev));
1253                         err = ENOTSUP;
1254                         goto error;
1255                 }
1256         }
1257         if (vport_info.query_flags & MLX5_PORT_QUERY_VPORT) {
1258                 priv->vport_id = vport_info.vport_id;
1259         } else if (spawn->pf_bond >= 0 &&
1260                    (switch_info->representor || switch_info->master)) {
1261                 DRV_LOG(ERR, "can't deduce vport index for port %d"
1262                              " on bonding device %s",
1263                              spawn->phys_port,
1264                              mlx5_os_get_dev_device_name(spawn->phys_dev));
1265                 err = ENOTSUP;
1266                 goto error;
1267         } else {
1268                 /*
1269                  * Suppose vport index in compatible way. Kernel/rdma_core
1270                  * support single E-Switch per PF configurations only and
1271                  * vport_id field contains the vport index for associated VF,
1272                  * which is deduced from representor port name.
1273                  * For example, let's have the IB device port 10, it has
1274                  * attached network device eth0, which has port name attribute
1275                  * pf0vf2, we can deduce the VF number as 2, and set vport index
1276                  * as 3 (2+1). This assigning schema should be changed if the
1277                  * multiple E-Switch instances per PF configurations or/and PCI
1278                  * subfunctions are added.
1279                  */
1280                 priv->vport_id = switch_info->representor ?
1281                                  switch_info->port_name + 1 : -1;
1282         }
1283         priv->representor_id = mlx5_representor_id_encode(switch_info,
1284                                                           eth_da->type);
1285         /*
1286          * Look for sibling devices in order to reuse their switch domain
1287          * if any, otherwise allocate one.
1288          */
1289         MLX5_ETH_FOREACH_DEV(port_id, dpdk_dev) {
1290                 const struct mlx5_priv *opriv =
1291                         rte_eth_devices[port_id].data->dev_private;
1292
1293                 if (!opriv ||
1294                     opriv->sh != priv->sh ||
1295                         opriv->domain_id ==
1296                         RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
1297                         continue;
1298                 priv->domain_id = opriv->domain_id;
1299                 DRV_LOG(DEBUG, "dev_port-%u inherit domain_id=%u\n",
1300                         priv->dev_port, priv->domain_id);
1301                 break;
1302         }
1303         if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
1304                 err = rte_eth_switch_domain_alloc(&priv->domain_id);
1305                 if (err) {
1306                         err = rte_errno;
1307                         DRV_LOG(ERR, "unable to allocate switch domain: %s",
1308                                 strerror(rte_errno));
1309                         goto error;
1310                 }
1311                 own_domain_id = 1;
1312                 DRV_LOG(DEBUG, "dev_port-%u new domain_id=%u\n",
1313                         priv->dev_port, priv->domain_id);
1314         }
1315         /* Override some values set by hardware configuration. */
1316         mlx5_args(config, dpdk_dev->devargs);
1317         err = mlx5_dev_check_sibling_config(priv, config, dpdk_dev);
1318         if (err)
1319                 goto error;
1320         config->hw_csum = !!(sh->device_attr.device_cap_flags_ex &
1321                             IBV_DEVICE_RAW_IP_CSUM);
1322         DRV_LOG(DEBUG, "checksum offloading is %ssupported",
1323                 (config->hw_csum ? "" : "not "));
1324 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
1325         !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
1326         DRV_LOG(DEBUG, "counters are not supported");
1327 #endif
1328 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
1329         if (config->dv_flow_en) {
1330                 DRV_LOG(WARNING, "DV flow is not supported");
1331                 config->dv_flow_en = 0;
1332         }
1333 #endif
1334         if (spawn->max_port > UINT8_MAX) {
1335                 /* Verbs can't support ports larger than 255 by design. */
1336                 DRV_LOG(ERR, "can't support IB ports > UINT8_MAX");
1337                 err = EINVAL;
1338                 goto error;
1339         }
1340         config->ind_table_max_size =
1341                 sh->device_attr.max_rwq_indirection_table_size;
1342         /*
1343          * Remove this check once DPDK supports larger/variable
1344          * indirection tables.
1345          */
1346         if (config->ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
1347                 config->ind_table_max_size = ETH_RSS_RETA_SIZE_512;
1348         DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
1349                 config->ind_table_max_size);
1350         config->hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
1351                                   IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
1352         DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
1353                 (config->hw_vlan_strip ? "" : "not "));
1354         config->hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
1355                                  IBV_RAW_PACKET_CAP_SCATTER_FCS);
1356 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
1357         hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
1358 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
1359         hw_padding = !!(sh->device_attr.device_cap_flags_ex &
1360                         IBV_DEVICE_PCI_WRITE_END_PADDING);
1361 #endif
1362         if (config->hw_padding && !hw_padding) {
1363                 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
1364                 config->hw_padding = 0;
1365         } else if (config->hw_padding) {
1366                 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
1367         }
1368         config->tso = (sh->device_attr.max_tso > 0 &&
1369                       (sh->device_attr.tso_supported_qpts &
1370                        (1 << IBV_QPT_RAW_PACKET)));
1371         if (config->tso)
1372                 config->tso_max_payload_sz = sh->device_attr.max_tso;
1373         /*
1374          * MPW is disabled by default, while the Enhanced MPW is enabled
1375          * by default.
1376          */
1377         if (config->mps == MLX5_ARG_UNSET)
1378                 config->mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
1379                                                           MLX5_MPW_DISABLED;
1380         else
1381                 config->mps = config->mps ? mps : MLX5_MPW_DISABLED;
1382         DRV_LOG(INFO, "%sMPS is %s",
1383                 config->mps == MLX5_MPW_ENHANCED ? "enhanced " :
1384                 config->mps == MLX5_MPW ? "legacy " : "",
1385                 config->mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
1386         if (config->devx) {
1387                 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config->hca_attr);
1388                 if (err) {
1389                         err = -err;
1390                         goto error;
1391                 }
1392                 /* Check relax ordering support. */
1393                 if (!haswell_broadwell_cpu) {
1394                         sh->cmng.relaxed_ordering_write =
1395                                 config->hca_attr.relaxed_ordering_write;
1396                         sh->cmng.relaxed_ordering_read =
1397                                 config->hca_attr.relaxed_ordering_read;
1398                 } else {
1399                         sh->cmng.relaxed_ordering_read = 0;
1400                         sh->cmng.relaxed_ordering_write = 0;
1401                 }
1402                 sh->rq_ts_format = config->hca_attr.rq_ts_format;
1403                 sh->sq_ts_format = config->hca_attr.sq_ts_format;
1404                 sh->steering_format_version =
1405                         config->hca_attr.steering_format_version;
1406                 sh->qp_ts_format = config->hca_attr.qp_ts_format;
1407                 /* Check for LRO support. */
1408                 if (config->dest_tir && config->hca_attr.lro_cap &&
1409                     config->dv_flow_en) {
1410                         /* TBD check tunnel lro caps. */
1411                         config->lro.supported = config->hca_attr.lro_cap;
1412                         DRV_LOG(DEBUG, "Device supports LRO");
1413                         /*
1414                          * If LRO timeout is not configured by application,
1415                          * use the minimal supported value.
1416                          */
1417                         if (!config->lro.timeout)
1418                                 config->lro.timeout =
1419                                 config->hca_attr.lro_timer_supported_periods[0];
1420                         DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
1421                                 config->lro.timeout);
1422                         DRV_LOG(DEBUG, "LRO minimal size of TCP segment "
1423                                 "required for coalescing is %d bytes",
1424                                 config->hca_attr.lro_min_mss_size);
1425                 }
1426 #if defined(HAVE_MLX5DV_DR) && \
1427         (defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) || \
1428          defined(HAVE_MLX5_DR_CREATE_ACTION_ASO))
1429                 if (config->hca_attr.qos.sup &&
1430                     config->hca_attr.qos.flow_meter_old &&
1431                     config->dv_flow_en) {
1432                         uint8_t reg_c_mask =
1433                                 config->hca_attr.qos.flow_meter_reg_c_ids;
1434                         /*
1435                          * Meter needs two REG_C's for color match and pre-sfx
1436                          * flow match. Here get the REG_C for color match.
1437                          * REG_C_0 and REG_C_1 is reserved for metadata feature.
1438                          */
1439                         reg_c_mask &= 0xfc;
1440                         if (__builtin_popcount(reg_c_mask) < 1) {
1441                                 priv->mtr_en = 0;
1442                                 DRV_LOG(WARNING, "No available register for"
1443                                         " meter.");
1444                         } else {
1445                                 /*
1446                                  * The meter color register is used by the
1447                                  * flow-hit feature as well.
1448                                  * The flow-hit feature must use REG_C_3
1449                                  * Prefer REG_C_3 if it is available.
1450                                  */
1451                                 if (reg_c_mask & (1 << (REG_C_3 - REG_C_0)))
1452                                         priv->mtr_color_reg = REG_C_3;
1453                                 else
1454                                         priv->mtr_color_reg = ffs(reg_c_mask)
1455                                                               - 1 + REG_C_0;
1456                                 priv->mtr_en = 1;
1457                                 priv->mtr_reg_share =
1458                                       config->hca_attr.qos.flow_meter;
1459                                 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
1460                                         priv->mtr_color_reg);
1461                         }
1462                 }
1463                 if (config->hca_attr.qos.sup &&
1464                         config->hca_attr.qos.flow_meter_aso_sup) {
1465                         uint32_t log_obj_size =
1466                                 rte_log2_u32(MLX5_ASO_MTRS_PER_POOL >> 1);
1467                         if (log_obj_size >=
1468                         config->hca_attr.qos.log_meter_aso_granularity &&
1469                         log_obj_size <=
1470                         config->hca_attr.qos.log_meter_aso_max_alloc)
1471                                 sh->meter_aso_en = 1;
1472                 }
1473                 if (priv->mtr_en) {
1474                         err = mlx5_aso_flow_mtrs_mng_init(priv->sh);
1475                         if (err) {
1476                                 err = -err;
1477                                 goto error;
1478                         }
1479                 }
1480                 if (config->hca_attr.flow.tunnel_header_0_1)
1481                         sh->tunnel_header_0_1 = 1;
1482 #endif
1483 #ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO
1484                 if (config->hca_attr.flow_hit_aso &&
1485                     priv->mtr_color_reg == REG_C_3) {
1486                         sh->flow_hit_aso_en = 1;
1487                         err = mlx5_flow_aso_age_mng_init(sh);
1488                         if (err) {
1489                                 err = -err;
1490                                 goto error;
1491                         }
1492                         DRV_LOG(DEBUG, "Flow Hit ASO is supported.");
1493                 }
1494 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */
1495 #if defined(HAVE_MLX5_DR_CREATE_ACTION_ASO) && \
1496         defined(HAVE_MLX5_DR_ACTION_ASO_CT)
1497                 if (config->hca_attr.ct_offload &&
1498                     priv->mtr_color_reg == REG_C_3) {
1499                         err = mlx5_flow_aso_ct_mng_init(sh);
1500                         if (err) {
1501                                 err = -err;
1502                                 goto error;
1503                         }
1504                         DRV_LOG(DEBUG, "CT ASO is supported.");
1505                         sh->ct_aso_en = 1;
1506                 }
1507 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO && HAVE_MLX5_DR_ACTION_ASO_CT */
1508 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE)
1509                 if (config->hca_attr.log_max_ft_sampler_num > 0  &&
1510                     config->dv_flow_en) {
1511                         priv->sampler_en = 1;
1512                         DRV_LOG(DEBUG, "Sampler enabled!");
1513                 } else {
1514                         priv->sampler_en = 0;
1515                         if (!config->hca_attr.log_max_ft_sampler_num)
1516                                 DRV_LOG(WARNING,
1517                                         "No available register for sampler.");
1518                         else
1519                                 DRV_LOG(DEBUG, "DV flow is not supported!");
1520                 }
1521 #endif
1522         }
1523         if (config->cqe_comp && RTE_CACHE_LINE_SIZE == 128 &&
1524             !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)) {
1525                 DRV_LOG(WARNING, "Rx CQE 128B compression is not supported");
1526                 config->cqe_comp = 0;
1527         }
1528         if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_FTAG_STRIDX &&
1529             (!config->devx || !config->hca_attr.mini_cqe_resp_flow_tag)) {
1530                 DRV_LOG(WARNING, "Flow Tag CQE compression"
1531                                  " format isn't supported.");
1532                 config->cqe_comp = 0;
1533         }
1534         if (config->cqe_comp_fmt == MLX5_CQE_RESP_FORMAT_L34H_STRIDX &&
1535             (!config->devx || !config->hca_attr.mini_cqe_resp_l3_l4_tag)) {
1536                 DRV_LOG(WARNING, "L3/L4 Header CQE compression"
1537                                  " format isn't supported.");
1538                 config->cqe_comp = 0;
1539         }
1540         DRV_LOG(DEBUG, "Rx CQE compression is %ssupported",
1541                         config->cqe_comp ? "" : "not ");
1542         if (config->tx_pp) {
1543                 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
1544                         config->hca_attr.dev_freq_khz);
1545                 DRV_LOG(DEBUG, "Packet pacing is %ssupported",
1546                         config->hca_attr.qos.packet_pacing ? "" : "not ");
1547                 DRV_LOG(DEBUG, "Cross channel ops are %ssupported",
1548                         config->hca_attr.cross_channel ? "" : "not ");
1549                 DRV_LOG(DEBUG, "WQE index ignore is %ssupported",
1550                         config->hca_attr.wqe_index_ignore ? "" : "not ");
1551                 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported",
1552                         config->hca_attr.non_wire_sq ? "" : "not ");
1553                 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
1554                         config->hca_attr.log_max_static_sq_wq ? "" : "not ",
1555                         config->hca_attr.log_max_static_sq_wq);
1556                 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported",
1557                         config->hca_attr.qos.wqe_rate_pp ? "" : "not ");
1558                 if (!config->devx) {
1559                         DRV_LOG(ERR, "DevX is required for packet pacing");
1560                         err = ENODEV;
1561                         goto error;
1562                 }
1563                 if (!config->hca_attr.qos.packet_pacing) {
1564                         DRV_LOG(ERR, "Packet pacing is not supported");
1565                         err = ENODEV;
1566                         goto error;
1567                 }
1568                 if (!config->hca_attr.cross_channel) {
1569                         DRV_LOG(ERR, "Cross channel operations are"
1570                                      " required for packet pacing");
1571                         err = ENODEV;
1572                         goto error;
1573                 }
1574                 if (!config->hca_attr.wqe_index_ignore) {
1575                         DRV_LOG(ERR, "WQE index ignore feature is"
1576                                      " required for packet pacing");
1577                         err = ENODEV;
1578                         goto error;
1579                 }
1580                 if (!config->hca_attr.non_wire_sq) {
1581                         DRV_LOG(ERR, "Non-wire SQ feature is"
1582                                      " required for packet pacing");
1583                         err = ENODEV;
1584                         goto error;
1585                 }
1586                 if (!config->hca_attr.log_max_static_sq_wq) {
1587                         DRV_LOG(ERR, "Static WQE SQ feature is"
1588                                      " required for packet pacing");
1589                         err = ENODEV;
1590                         goto error;
1591                 }
1592                 if (!config->hca_attr.qos.wqe_rate_pp) {
1593                         DRV_LOG(ERR, "WQE rate mode is required"
1594                                      " for packet pacing");
1595                         err = ENODEV;
1596                         goto error;
1597                 }
1598 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1599                 DRV_LOG(ERR, "DevX does not provide UAR offset,"
1600                              " can't create queues for packet pacing");
1601                 err = ENODEV;
1602                 goto error;
1603 #endif
1604         }
1605         if (config->devx) {
1606                 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
1607
1608                 err = config->hca_attr.access_register_user ?
1609                         mlx5_devx_cmd_register_read
1610                                 (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0,
1611                                 reg, MLX5_ST_SZ_DW(register_mtutc)) : ENOTSUP;
1612                 if (!err) {
1613                         uint32_t ts_mode;
1614
1615                         /* MTUTC register is read successfully. */
1616                         ts_mode = MLX5_GET(register_mtutc, reg,
1617                                            time_stamp_mode);
1618                         if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME)
1619                                 config->rt_timestamp = 1;
1620                 } else {
1621                         /* Kernel does not support register reading. */
1622                         if (config->hca_attr.dev_freq_khz ==
1623                                                  (NS_PER_S / MS_PER_S))
1624                                 config->rt_timestamp = 1;
1625                 }
1626         }
1627         /*
1628          * If HW has bug working with tunnel packet decapsulation and
1629          * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip
1630          * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore.
1631          */
1632         if (config->hca_attr.scatter_fcs_w_decap_disable && config->decap_en)
1633                 config->hw_fcs_strip = 0;
1634         DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
1635                 (config->hw_fcs_strip ? "" : "not "));
1636         if (config->mprq.enabled && mprq) {
1637                 if (config->mprq.stride_num_n &&
1638                     (config->mprq.stride_num_n > mprq_max_stride_num_n ||
1639                      config->mprq.stride_num_n < mprq_min_stride_num_n)) {
1640                         config->mprq.stride_num_n =
1641                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1642                                                 mprq_min_stride_num_n),
1643                                         mprq_max_stride_num_n);
1644                         DRV_LOG(WARNING,
1645                                 "the number of strides"
1646                                 " for Multi-Packet RQ is out of range,"
1647                                 " setting default value (%u)",
1648                                 1 << config->mprq.stride_num_n);
1649                 }
1650                 if (config->mprq.stride_size_n &&
1651                     (config->mprq.stride_size_n > mprq_max_stride_size_n ||
1652                      config->mprq.stride_size_n < mprq_min_stride_size_n)) {
1653                         config->mprq.stride_size_n =
1654                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
1655                                                 mprq_min_stride_size_n),
1656                                         mprq_max_stride_size_n);
1657                         DRV_LOG(WARNING,
1658                                 "the size of a stride"
1659                                 " for Multi-Packet RQ is out of range,"
1660                                 " setting default value (%u)",
1661                                 1 << config->mprq.stride_size_n);
1662                 }
1663                 config->mprq.min_stride_size_n = mprq_min_stride_size_n;
1664                 config->mprq.max_stride_size_n = mprq_max_stride_size_n;
1665         } else if (config->mprq.enabled && !mprq) {
1666                 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1667                 config->mprq.enabled = 0;
1668         }
1669         if (config->max_dump_files_num == 0)
1670                 config->max_dump_files_num = 128;
1671         eth_dev = rte_eth_dev_allocate(name);
1672         if (eth_dev == NULL) {
1673                 DRV_LOG(ERR, "can not allocate rte ethdev");
1674                 err = ENOMEM;
1675                 goto error;
1676         }
1677         if (priv->representor) {
1678                 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1679                 eth_dev->data->representor_id = priv->representor_id;
1680                 MLX5_ETH_FOREACH_DEV(port_id, dpdk_dev) {
1681                         struct mlx5_priv *opriv =
1682                                 rte_eth_devices[port_id].data->dev_private;
1683                         if (opriv &&
1684                             opriv->master &&
1685                             opriv->domain_id == priv->domain_id &&
1686                             opriv->sh == priv->sh) {
1687                                 eth_dev->data->backer_port_id = port_id;
1688                                 break;
1689                         }
1690                 }
1691                 if (port_id >= RTE_MAX_ETHPORTS)
1692                         eth_dev->data->backer_port_id = eth_dev->data->port_id;
1693         }
1694         priv->mp_id.port_id = eth_dev->data->port_id;
1695         strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
1696         /*
1697          * Store associated network device interface index. This index
1698          * is permanent throughout the lifetime of device. So, we may store
1699          * the ifindex here and use the cached value further.
1700          */
1701         MLX5_ASSERT(spawn->ifindex);
1702         priv->if_index = spawn->ifindex;
1703         eth_dev->data->dev_private = priv;
1704         priv->dev_data = eth_dev->data;
1705         eth_dev->data->mac_addrs = priv->mac;
1706         eth_dev->device = dpdk_dev;
1707         eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1708         /* Configure the first MAC address by default. */
1709         if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1710                 DRV_LOG(ERR,
1711                         "port %u cannot get MAC address, is mlx5_en"
1712                         " loaded? (errno: %s)",
1713                         eth_dev->data->port_id, strerror(rte_errno));
1714                 err = ENODEV;
1715                 goto error;
1716         }
1717         DRV_LOG(INFO,
1718                 "port %u MAC address is " RTE_ETHER_ADDR_PRT_FMT,
1719                 eth_dev->data->port_id, RTE_ETHER_ADDR_BYTES(&mac));
1720 #ifdef RTE_LIBRTE_MLX5_DEBUG
1721         {
1722                 char ifname[MLX5_NAMESIZE];
1723
1724                 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1725                         DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1726                                 eth_dev->data->port_id, ifname);
1727                 else
1728                         DRV_LOG(DEBUG, "port %u ifname is unknown",
1729                                 eth_dev->data->port_id);
1730         }
1731 #endif
1732         /* Get actual MTU if possible. */
1733         err = mlx5_get_mtu(eth_dev, &priv->mtu);
1734         if (err) {
1735                 err = rte_errno;
1736                 goto error;
1737         }
1738         DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1739                 priv->mtu);
1740         /* Initialize burst functions to prevent crashes before link-up. */
1741         eth_dev->rx_pkt_burst = removed_rx_burst;
1742         eth_dev->tx_pkt_burst = removed_tx_burst;
1743         eth_dev->dev_ops = &mlx5_dev_ops;
1744         eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1745         eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1746         eth_dev->rx_queue_count = mlx5_rx_queue_count;
1747         /* Register MAC address. */
1748         claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1749         if (config->vf && config->vf_nl_en)
1750                 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1751                                       mlx5_ifindex(eth_dev),
1752                                       eth_dev->data->mac_addrs,
1753                                       MLX5_MAX_MAC_ADDRESSES);
1754         priv->ctrl_flows = 0;
1755         rte_spinlock_init(&priv->flow_list_lock);
1756         TAILQ_INIT(&priv->flow_meters);
1757         priv->mtr_profile_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_PTR);
1758         if (!priv->mtr_profile_tbl)
1759                 goto error;
1760         /* Hint libmlx5 to use PMD allocator for data plane resources */
1761         mlx5_glue->dv_set_context_attr(sh->ctx,
1762                         MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1763                         (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
1764                                 .alloc = &mlx5_alloc_verbs_buf,
1765                                 .free = &mlx5_free_verbs_buf,
1766                                 .data = sh,
1767                         }));
1768         /* Bring Ethernet device up. */
1769         DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1770                 eth_dev->data->port_id);
1771         mlx5_set_link_up(eth_dev);
1772         /*
1773          * Even though the interrupt handler is not installed yet,
1774          * interrupts will still trigger on the async_fd from
1775          * Verbs context returned by ibv_open_device().
1776          */
1777         mlx5_link_update(eth_dev, 0);
1778 #ifdef HAVE_MLX5DV_DR_ESWITCH
1779         if (!(config->hca_attr.eswitch_manager && config->dv_flow_en &&
1780               (switch_info->representor || switch_info->master)))
1781                 config->dv_esw_en = 0;
1782 #else
1783         config->dv_esw_en = 0;
1784 #endif
1785         /* Detect minimal data bytes to inline. */
1786         mlx5_set_min_inline(spawn, config);
1787         /* Store device configuration on private structure. */
1788         priv->config = *config;
1789         for (i = 0; i < MLX5_FLOW_TYPE_MAXI; i++) {
1790                 icfg[i].release_mem_en = !!config->reclaim_mode;
1791                 if (config->reclaim_mode)
1792                         icfg[i].per_core_cache = 0;
1793                 priv->flows[i] = mlx5_ipool_create(&icfg[i]);
1794                 if (!priv->flows[i])
1795                         goto error;
1796         }
1797         /* Create context for virtual machine VLAN workaround. */
1798         priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1799         if (config->dv_flow_en) {
1800                 err = mlx5_alloc_shared_dr(priv);
1801                 if (err)
1802                         goto error;
1803         }
1804         if (config->devx && config->dv_flow_en && config->dest_tir) {
1805                 priv->obj_ops = devx_obj_ops;
1806                 priv->obj_ops.drop_action_create =
1807                                                 ibv_obj_ops.drop_action_create;
1808                 priv->obj_ops.drop_action_destroy =
1809                                                 ibv_obj_ops.drop_action_destroy;
1810 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1811                 priv->obj_ops.txq_obj_modify = ibv_obj_ops.txq_obj_modify;
1812 #else
1813                 if (config->dv_esw_en)
1814                         priv->obj_ops.txq_obj_modify =
1815                                                 ibv_obj_ops.txq_obj_modify;
1816 #endif
1817                 /* Use specific wrappers for Tx object. */
1818                 priv->obj_ops.txq_obj_new = mlx5_os_txq_obj_new;
1819                 priv->obj_ops.txq_obj_release = mlx5_os_txq_obj_release;
1820                 mlx5_queue_counter_id_prepare(eth_dev);
1821                 priv->obj_ops.lb_dummy_queue_create =
1822                                         mlx5_rxq_ibv_obj_dummy_lb_create;
1823                 priv->obj_ops.lb_dummy_queue_release =
1824                                         mlx5_rxq_ibv_obj_dummy_lb_release;
1825         } else {
1826                 priv->obj_ops = ibv_obj_ops;
1827         }
1828         if (config->tx_pp &&
1829             (priv->config.dv_esw_en ||
1830              priv->obj_ops.txq_obj_new != mlx5_os_txq_obj_new)) {
1831                 /*
1832                  * HAVE_MLX5DV_DEVX_UAR_OFFSET is required to support
1833                  * packet pacing and already checked above.
1834                  * Hence, we should only make sure the SQs will be created
1835                  * with DevX, not with Verbs.
1836                  * Verbs allocates the SQ UAR on its own and it can't be shared
1837                  * with Clock Queue UAR as required for Tx scheduling.
1838                  */
1839                 DRV_LOG(ERR, "Verbs SQs, UAR can't be shared as required for packet pacing");
1840                 err = ENODEV;
1841                 goto error;
1842         }
1843         priv->drop_queue.hrxq = mlx5_drop_action_create(eth_dev);
1844         if (!priv->drop_queue.hrxq)
1845                 goto error;
1846         /* Supported Verbs flow priority number detection. */
1847         err = mlx5_flow_discover_priorities(eth_dev);
1848         if (err < 0) {
1849                 err = -err;
1850                 goto error;
1851         }
1852         priv->config.flow_prio = err;
1853         if (!priv->config.dv_esw_en &&
1854             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1855                 DRV_LOG(WARNING, "metadata mode %u is not supported "
1856                                  "(no E-Switch)", priv->config.dv_xmeta_en);
1857                 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1858         }
1859         mlx5_set_metadata_mask(eth_dev);
1860         if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1861             !priv->sh->dv_regc0_mask) {
1862                 DRV_LOG(ERR, "metadata mode %u is not supported "
1863                              "(no metadata reg_c[0] is available)",
1864                              priv->config.dv_xmeta_en);
1865                         err = ENOTSUP;
1866                         goto error;
1867         }
1868         priv->hrxqs = mlx5_list_create("hrxq", eth_dev, true,
1869                                        mlx5_hrxq_create_cb,
1870                                        mlx5_hrxq_match_cb,
1871                                        mlx5_hrxq_remove_cb,
1872                                        mlx5_hrxq_clone_cb,
1873                                        mlx5_hrxq_clone_free_cb);
1874         if (!priv->hrxqs)
1875                 goto error;
1876         rte_rwlock_init(&priv->ind_tbls_lock);
1877         /* Query availability of metadata reg_c's. */
1878         err = mlx5_flow_discover_mreg_c(eth_dev);
1879         if (err < 0) {
1880                 err = -err;
1881                 goto error;
1882         }
1883         if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1884                 DRV_LOG(DEBUG,
1885                         "port %u extensive metadata register is not supported",
1886                         eth_dev->data->port_id);
1887                 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1888                         DRV_LOG(ERR, "metadata mode %u is not supported "
1889                                      "(no metadata registers available)",
1890                                      priv->config.dv_xmeta_en);
1891                         err = ENOTSUP;
1892                         goto error;
1893                 }
1894         }
1895         if (priv->config.dv_flow_en &&
1896             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1897             mlx5_flow_ext_mreg_supported(eth_dev) &&
1898             priv->sh->dv_regc0_mask) {
1899                 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1900                                                       MLX5_FLOW_MREG_HTABLE_SZ,
1901                                                       false, true, eth_dev,
1902                                                       flow_dv_mreg_create_cb,
1903                                                       flow_dv_mreg_match_cb,
1904                                                       flow_dv_mreg_remove_cb,
1905                                                       flow_dv_mreg_clone_cb,
1906                                                     flow_dv_mreg_clone_free_cb);
1907                 if (!priv->mreg_cp_tbl) {
1908                         err = ENOMEM;
1909                         goto error;
1910                 }
1911         }
1912         rte_spinlock_init(&priv->shared_act_sl);
1913         mlx5_flow_counter_mode_config(eth_dev);
1914         mlx5_flow_drop_action_config(eth_dev);
1915         if (priv->config.dv_flow_en)
1916                 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
1917         return eth_dev;
1918 error:
1919         if (priv) {
1920                 if (priv->mreg_cp_tbl)
1921                         mlx5_hlist_destroy(priv->mreg_cp_tbl);
1922                 if (priv->sh)
1923                         mlx5_os_free_shared_dr(priv);
1924                 if (priv->nl_socket_route >= 0)
1925                         close(priv->nl_socket_route);
1926                 if (priv->nl_socket_rdma >= 0)
1927                         close(priv->nl_socket_rdma);
1928                 if (priv->vmwa_context)
1929                         mlx5_vlan_vmwa_exit(priv->vmwa_context);
1930                 if (eth_dev && priv->drop_queue.hrxq)
1931                         mlx5_drop_action_destroy(eth_dev);
1932                 if (priv->mtr_profile_tbl)
1933                         mlx5_l3t_destroy(priv->mtr_profile_tbl);
1934                 if (own_domain_id)
1935                         claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1936                 if (priv->hrxqs)
1937                         mlx5_list_destroy(priv->hrxqs);
1938                 mlx5_free(priv);
1939                 if (eth_dev != NULL)
1940                         eth_dev->data->dev_private = NULL;
1941         }
1942         if (eth_dev != NULL) {
1943                 /* mac_addrs must not be freed alone because part of
1944                  * dev_private
1945                  **/
1946                 eth_dev->data->mac_addrs = NULL;
1947                 rte_eth_dev_release_port(eth_dev);
1948         }
1949         if (sh)
1950                 mlx5_free_shared_dev_ctx(sh);
1951         MLX5_ASSERT(err > 0);
1952         rte_errno = err;
1953         return NULL;
1954 }
1955
1956 /**
1957  * Comparison callback to sort device data.
1958  *
1959  * This is meant to be used with qsort().
1960  *
1961  * @param a[in]
1962  *   Pointer to pointer to first data object.
1963  * @param b[in]
1964  *   Pointer to pointer to second data object.
1965  *
1966  * @return
1967  *   0 if both objects are equal, less than 0 if the first argument is less
1968  *   than the second, greater than 0 otherwise.
1969  */
1970 static int
1971 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1972 {
1973         const struct mlx5_switch_info *si_a =
1974                 &((const struct mlx5_dev_spawn_data *)a)->info;
1975         const struct mlx5_switch_info *si_b =
1976                 &((const struct mlx5_dev_spawn_data *)b)->info;
1977         int ret;
1978
1979         /* Master device first. */
1980         ret = si_b->master - si_a->master;
1981         if (ret)
1982                 return ret;
1983         /* Then representor devices. */
1984         ret = si_b->representor - si_a->representor;
1985         if (ret)
1986                 return ret;
1987         /* Unidentified devices come last in no specific order. */
1988         if (!si_a->representor)
1989                 return 0;
1990         /* Order representors by name. */
1991         return si_a->port_name - si_b->port_name;
1992 }
1993
1994 /**
1995  * Match PCI information for possible slaves of bonding device.
1996  *
1997  * @param[in] ibv_dev
1998  *   Pointer to Infiniband device structure.
1999  * @param[in] pci_dev
2000  *   Pointer to primary PCI address structure to match.
2001  * @param[in] nl_rdma
2002  *   Netlink RDMA group socket handle.
2003  * @param[in] owner
2004  *   Rerepsentor owner PF index.
2005  * @param[out] bond_info
2006  *   Pointer to bonding information.
2007  *
2008  * @return
2009  *   negative value if no bonding device found, otherwise
2010  *   positive index of slave PF in bonding.
2011  */
2012 static int
2013 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
2014                            const struct rte_pci_addr *pci_dev,
2015                            int nl_rdma, uint16_t owner,
2016                            struct mlx5_bond_info *bond_info)
2017 {
2018         char ifname[IF_NAMESIZE + 1];
2019         unsigned int ifindex;
2020         unsigned int np, i;
2021         FILE *bond_file = NULL, *file;
2022         int pf = -1;
2023         int ret;
2024
2025         /*
2026          * Try to get master device name. If something goes
2027          * wrong suppose the lack of kernel support and no
2028          * bonding devices.
2029          */
2030         memset(bond_info, 0, sizeof(*bond_info));
2031         if (nl_rdma < 0)
2032                 return -1;
2033         if (!strstr(ibv_dev->name, "bond"))
2034                 return -1;
2035         np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
2036         if (!np)
2037                 return -1;
2038         /*
2039          * The Master device might not be on the predefined
2040          * port (not on port index 1, it is not garanted),
2041          * we have to scan all Infiniband device port and
2042          * find master.
2043          */
2044         for (i = 1; i <= np; ++i) {
2045                 /* Check whether Infiniband port is populated. */
2046                 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
2047                 if (!ifindex)
2048                         continue;
2049                 if (!if_indextoname(ifindex, ifname))
2050                         continue;
2051                 /* Try to read bonding slave names from sysfs. */
2052                 MKSTR(slaves,
2053                       "/sys/class/net/%s/master/bonding/slaves", ifname);
2054                 bond_file = fopen(slaves, "r");
2055                 if (bond_file)
2056                         break;
2057         }
2058         if (!bond_file)
2059                 return -1;
2060         /* Use safe format to check maximal buffer length. */
2061         MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
2062         while (fscanf(bond_file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
2063                 char tmp_str[IF_NAMESIZE + 32];
2064                 struct rte_pci_addr pci_addr;
2065                 struct mlx5_switch_info info;
2066
2067                 /* Process slave interface names in the loop. */
2068                 snprintf(tmp_str, sizeof(tmp_str),
2069                          "/sys/class/net/%s", ifname);
2070                 if (mlx5_get_pci_addr(tmp_str, &pci_addr)) {
2071                         DRV_LOG(WARNING, "can not get PCI address"
2072                                          " for netdev \"%s\"", ifname);
2073                         continue;
2074                 }
2075                 /* Slave interface PCI address match found. */
2076                 snprintf(tmp_str, sizeof(tmp_str),
2077                          "/sys/class/net/%s/phys_port_name", ifname);
2078                 file = fopen(tmp_str, "rb");
2079                 if (!file)
2080                         break;
2081                 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
2082                 if (fscanf(file, "%32s", tmp_str) == 1)
2083                         mlx5_translate_port_name(tmp_str, &info);
2084                 fclose(file);
2085                 /* Only process PF ports. */
2086                 if (info.name_type != MLX5_PHYS_PORT_NAME_TYPE_LEGACY &&
2087                     info.name_type != MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
2088                         continue;
2089                 /* Check max bonding member. */
2090                 if (info.port_name >= MLX5_BOND_MAX_PORTS) {
2091                         DRV_LOG(WARNING, "bonding index out of range, "
2092                                 "please increase MLX5_BOND_MAX_PORTS: %s",
2093                                 tmp_str);
2094                         break;
2095                 }
2096                 /* Match PCI address, allows BDF0+pfx or BDFx+pfx. */
2097                 if (pci_dev->domain == pci_addr.domain &&
2098                     pci_dev->bus == pci_addr.bus &&
2099                     pci_dev->devid == pci_addr.devid &&
2100                     ((pci_dev->function == 0 &&
2101                       pci_dev->function + owner == pci_addr.function) ||
2102                      (pci_dev->function == owner &&
2103                       pci_addr.function == owner)))
2104                         pf = info.port_name;
2105                 /* Get ifindex. */
2106                 snprintf(tmp_str, sizeof(tmp_str),
2107                          "/sys/class/net/%s/ifindex", ifname);
2108                 file = fopen(tmp_str, "rb");
2109                 if (!file)
2110                         break;
2111                 ret = fscanf(file, "%u", &ifindex);
2112                 fclose(file);
2113                 if (ret != 1)
2114                         break;
2115                 /* Save bonding info. */
2116                 strncpy(bond_info->ports[info.port_name].ifname, ifname,
2117                         sizeof(bond_info->ports[0].ifname));
2118                 bond_info->ports[info.port_name].pci_addr = pci_addr;
2119                 bond_info->ports[info.port_name].ifindex = ifindex;
2120                 bond_info->n_port++;
2121         }
2122         if (pf >= 0) {
2123                 /* Get bond interface info */
2124                 ret = mlx5_sysfs_bond_info(ifindex, &bond_info->ifindex,
2125                                            bond_info->ifname);
2126                 if (ret)
2127                         DRV_LOG(ERR, "unable to get bond info: %s",
2128                                 strerror(rte_errno));
2129                 else
2130                         DRV_LOG(INFO, "PF device %u, bond device %u(%s)",
2131                                 ifindex, bond_info->ifindex, bond_info->ifname);
2132         }
2133         return pf;
2134 }
2135
2136 static void
2137 mlx5_os_config_default(struct mlx5_dev_config *config)
2138 {
2139         memset(config, 0, sizeof(*config));
2140         config->mps = MLX5_ARG_UNSET;
2141         config->dbnc = MLX5_ARG_UNSET;
2142         config->rx_vec_en = 1;
2143         config->txq_inline_max = MLX5_ARG_UNSET;
2144         config->txq_inline_min = MLX5_ARG_UNSET;
2145         config->txq_inline_mpw = MLX5_ARG_UNSET;
2146         config->txqs_inline = MLX5_ARG_UNSET;
2147         config->vf_nl_en = 1;
2148         config->mr_ext_memseg_en = 1;
2149         config->mr_mempool_reg_en = 1;
2150         config->mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN;
2151         config->mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS;
2152         config->dv_esw_en = 1;
2153         config->dv_flow_en = 1;
2154         config->decap_en = 1;
2155         config->log_hp_size = MLX5_ARG_UNSET;
2156         config->allow_duplicate_pattern = 1;
2157 }
2158
2159 /**
2160  * Register a PCI device within bonding.
2161  *
2162  * This function spawns Ethernet devices out of a given PCI device and
2163  * bonding owner PF index.
2164  *
2165  * @param[in] pci_dev
2166  *   PCI device information.
2167  * @param[in] req_eth_da
2168  *   Requested ethdev device argument.
2169  * @param[in] owner_id
2170  *   Requested owner PF port ID within bonding device, default to 0.
2171  *
2172  * @return
2173  *   0 on success, a negative errno value otherwise and rte_errno is set.
2174  */
2175 static int
2176 mlx5_os_pci_probe_pf(struct rte_pci_device *pci_dev,
2177                      struct rte_eth_devargs *req_eth_da,
2178                      uint16_t owner_id)
2179 {
2180         struct ibv_device **ibv_list;
2181         /*
2182          * Number of found IB Devices matching with requested PCI BDF.
2183          * nd != 1 means there are multiple IB devices over the same
2184          * PCI device and we have representors and master.
2185          */
2186         unsigned int nd = 0;
2187         /*
2188          * Number of found IB device Ports. nd = 1 and np = 1..n means
2189          * we have the single multiport IB device, and there may be
2190          * representors attached to some of found ports.
2191          */
2192         unsigned int np = 0;
2193         /*
2194          * Number of DPDK ethernet devices to Spawn - either over
2195          * multiple IB devices or multiple ports of single IB device.
2196          * Actually this is the number of iterations to spawn.
2197          */
2198         unsigned int ns = 0;
2199         /*
2200          * Bonding device
2201          *   < 0 - no bonding device (single one)
2202          *  >= 0 - bonding device (value is slave PF index)
2203          */
2204         int bd = -1;
2205         struct mlx5_dev_spawn_data *list = NULL;
2206         struct mlx5_dev_config dev_config;
2207         unsigned int dev_config_vf;
2208         struct rte_eth_devargs eth_da = *req_eth_da;
2209         struct rte_pci_addr owner_pci = pci_dev->addr; /* Owner PF. */
2210         struct mlx5_bond_info bond_info;
2211         int ret = -1;
2212
2213         errno = 0;
2214         ibv_list = mlx5_glue->get_device_list(&ret);
2215         if (!ibv_list) {
2216                 rte_errno = errno ? errno : ENOSYS;
2217                 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
2218                 return -rte_errno;
2219         }
2220         /*
2221          * First scan the list of all Infiniband devices to find
2222          * matching ones, gathering into the list.
2223          */
2224         struct ibv_device *ibv_match[ret + 1];
2225         int nl_route = mlx5_nl_init(NETLINK_ROUTE);
2226         int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
2227         unsigned int i;
2228
2229         while (ret-- > 0) {
2230                 struct rte_pci_addr pci_addr;
2231
2232                 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
2233                 bd = mlx5_device_bond_pci_match
2234                                 (ibv_list[ret], &owner_pci, nl_rdma, owner_id,
2235                                  &bond_info);
2236                 if (bd >= 0) {
2237                         /*
2238                          * Bonding device detected. Only one match is allowed,
2239                          * the bonding is supported over multi-port IB device,
2240                          * there should be no matches on representor PCI
2241                          * functions or non VF LAG bonding devices with
2242                          * specified address.
2243                          */
2244                         if (nd) {
2245                                 DRV_LOG(ERR,
2246                                         "multiple PCI match on bonding device"
2247                                         "\"%s\" found", ibv_list[ret]->name);
2248                                 rte_errno = ENOENT;
2249                                 ret = -rte_errno;
2250                                 goto exit;
2251                         }
2252                         /* Amend owner pci address if owner PF ID specified. */
2253                         if (eth_da.nb_representor_ports)
2254                                 owner_pci.function += owner_id;
2255                         DRV_LOG(INFO, "PCI information matches for"
2256                                       " slave %d bonding device \"%s\"",
2257                                       bd, ibv_list[ret]->name);
2258                         ibv_match[nd++] = ibv_list[ret];
2259                         break;
2260                 } else {
2261                         /* Bonding device not found. */
2262                         if (mlx5_get_pci_addr(ibv_list[ret]->ibdev_path,
2263                                               &pci_addr))
2264                                 continue;
2265                         if (owner_pci.domain != pci_addr.domain ||
2266                             owner_pci.bus != pci_addr.bus ||
2267                             owner_pci.devid != pci_addr.devid ||
2268                             owner_pci.function != pci_addr.function)
2269                                 continue;
2270                         DRV_LOG(INFO, "PCI information matches for device \"%s\"",
2271                                 ibv_list[ret]->name);
2272                         ibv_match[nd++] = ibv_list[ret];
2273                 }
2274         }
2275         ibv_match[nd] = NULL;
2276         if (!nd) {
2277                 /* No device matches, just complain and bail out. */
2278                 DRV_LOG(WARNING,
2279                         "no Verbs device matches PCI device " PCI_PRI_FMT ","
2280                         " are kernel drivers loaded?",
2281                         owner_pci.domain, owner_pci.bus,
2282                         owner_pci.devid, owner_pci.function);
2283                 rte_errno = ENOENT;
2284                 ret = -rte_errno;
2285                 goto exit;
2286         }
2287         if (nd == 1) {
2288                 /*
2289                  * Found single matching device may have multiple ports.
2290                  * Each port may be representor, we have to check the port
2291                  * number and check the representors existence.
2292                  */
2293                 if (nl_rdma >= 0)
2294                         np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
2295                 if (!np)
2296                         DRV_LOG(WARNING, "can not get IB device \"%s\""
2297                                          " ports number", ibv_match[0]->name);
2298                 if (bd >= 0 && !np) {
2299                         DRV_LOG(ERR, "can not get ports"
2300                                      " for bonding device");
2301                         rte_errno = ENOENT;
2302                         ret = -rte_errno;
2303                         goto exit;
2304                 }
2305         }
2306         /*
2307          * Now we can determine the maximal
2308          * amount of devices to be spawned.
2309          */
2310         list = mlx5_malloc(MLX5_MEM_ZERO,
2311                            sizeof(struct mlx5_dev_spawn_data) *
2312                            (np ? np : nd),
2313                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
2314         if (!list) {
2315                 DRV_LOG(ERR, "spawn data array allocation failure");
2316                 rte_errno = ENOMEM;
2317                 ret = -rte_errno;
2318                 goto exit;
2319         }
2320         if (bd >= 0 || np > 1) {
2321                 /*
2322                  * Single IB device with multiple ports found,
2323                  * it may be E-Switch master device and representors.
2324                  * We have to perform identification through the ports.
2325                  */
2326                 MLX5_ASSERT(nl_rdma >= 0);
2327                 MLX5_ASSERT(ns == 0);
2328                 MLX5_ASSERT(nd == 1);
2329                 MLX5_ASSERT(np);
2330                 for (i = 1; i <= np; ++i) {
2331                         list[ns].bond_info = &bond_info;
2332                         list[ns].max_port = np;
2333                         list[ns].phys_port = i;
2334                         list[ns].phys_dev = ibv_match[0];
2335                         list[ns].eth_dev = NULL;
2336                         list[ns].pci_dev = pci_dev;
2337                         list[ns].pf_bond = bd;
2338                         list[ns].ifindex = mlx5_nl_ifindex
2339                                 (nl_rdma,
2340                                 mlx5_os_get_dev_device_name
2341                                                 (list[ns].phys_dev), i);
2342                         if (!list[ns].ifindex) {
2343                                 /*
2344                                  * No network interface index found for the
2345                                  * specified port, it means there is no
2346                                  * representor on this port. It's OK,
2347                                  * there can be disabled ports, for example
2348                                  * if sriov_numvfs < sriov_totalvfs.
2349                                  */
2350                                 continue;
2351                         }
2352                         ret = -1;
2353                         if (nl_route >= 0)
2354                                 ret = mlx5_nl_switch_info
2355                                                (nl_route,
2356                                                 list[ns].ifindex,
2357                                                 &list[ns].info);
2358                         if (ret || (!list[ns].info.representor &&
2359                                     !list[ns].info.master)) {
2360                                 /*
2361                                  * We failed to recognize representors with
2362                                  * Netlink, let's try to perform the task
2363                                  * with sysfs.
2364                                  */
2365                                 ret =  mlx5_sysfs_switch_info
2366                                                 (list[ns].ifindex,
2367                                                  &list[ns].info);
2368                         }
2369                         if (!ret && bd >= 0) {
2370                                 switch (list[ns].info.name_type) {
2371                                 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
2372                                         if (np == 1) {
2373                                                 /*
2374                                                  * Force standalone bonding
2375                                                  * device for ROCE LAG
2376                                                  * confgiurations.
2377                                                  */
2378                                                 list[ns].info.master = 0;
2379                                                 list[ns].info.representor = 0;
2380                                         }
2381                                         if (list[ns].info.port_name == bd)
2382                                                 ns++;
2383                                         break;
2384                                 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
2385                                         /* Fallthrough */
2386                                 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
2387                                         /* Fallthrough */
2388                                 case MLX5_PHYS_PORT_NAME_TYPE_PFSF:
2389                                         if (list[ns].info.pf_num == bd)
2390                                                 ns++;
2391                                         break;
2392                                 default:
2393                                         break;
2394                                 }
2395                                 continue;
2396                         }
2397                         if (!ret && (list[ns].info.representor ^
2398                                      list[ns].info.master))
2399                                 ns++;
2400                 }
2401                 if (!ns) {
2402                         DRV_LOG(ERR,
2403                                 "unable to recognize master/representors"
2404                                 " on the IB device with multiple ports");
2405                         rte_errno = ENOENT;
2406                         ret = -rte_errno;
2407                         goto exit;
2408                 }
2409         } else {
2410                 /*
2411                  * The existence of several matching entries (nd > 1) means
2412                  * port representors have been instantiated. No existing Verbs
2413                  * call nor sysfs entries can tell them apart, this can only
2414                  * be done through Netlink calls assuming kernel drivers are
2415                  * recent enough to support them.
2416                  *
2417                  * In the event of identification failure through Netlink,
2418                  * try again through sysfs, then:
2419                  *
2420                  * 1. A single IB device matches (nd == 1) with single
2421                  *    port (np=0/1) and is not a representor, assume
2422                  *    no switch support.
2423                  *
2424                  * 2. Otherwise no safe assumptions can be made;
2425                  *    complain louder and bail out.
2426                  */
2427                 for (i = 0; i != nd; ++i) {
2428                         memset(&list[ns].info, 0, sizeof(list[ns].info));
2429                         list[ns].bond_info = NULL;
2430                         list[ns].max_port = 1;
2431                         list[ns].phys_port = 1;
2432                         list[ns].phys_dev = ibv_match[i];
2433                         list[ns].eth_dev = NULL;
2434                         list[ns].pci_dev = pci_dev;
2435                         list[ns].pf_bond = -1;
2436                         list[ns].ifindex = 0;
2437                         if (nl_rdma >= 0)
2438                                 list[ns].ifindex = mlx5_nl_ifindex
2439                                 (nl_rdma,
2440                                 mlx5_os_get_dev_device_name
2441                                                 (list[ns].phys_dev), 1);
2442                         if (!list[ns].ifindex) {
2443                                 char ifname[IF_NAMESIZE];
2444
2445                                 /*
2446                                  * Netlink failed, it may happen with old
2447                                  * ib_core kernel driver (before 4.16).
2448                                  * We can assume there is old driver because
2449                                  * here we are processing single ports IB
2450                                  * devices. Let's try sysfs to retrieve
2451                                  * the ifindex. The method works for
2452                                  * master device only.
2453                                  */
2454                                 if (nd > 1) {
2455                                         /*
2456                                          * Multiple devices found, assume
2457                                          * representors, can not distinguish
2458                                          * master/representor and retrieve
2459                                          * ifindex via sysfs.
2460                                          */
2461                                         continue;
2462                                 }
2463                                 ret = mlx5_get_ifname_sysfs
2464                                         (ibv_match[i]->ibdev_path, ifname);
2465                                 if (!ret)
2466                                         list[ns].ifindex =
2467                                                 if_nametoindex(ifname);
2468                                 if (!list[ns].ifindex) {
2469                                         /*
2470                                          * No network interface index found
2471                                          * for the specified device, it means
2472                                          * there it is neither representor
2473                                          * nor master.
2474                                          */
2475                                         continue;
2476                                 }
2477                         }
2478                         ret = -1;
2479                         if (nl_route >= 0)
2480                                 ret = mlx5_nl_switch_info
2481                                                (nl_route,
2482                                                 list[ns].ifindex,
2483                                                 &list[ns].info);
2484                         if (ret || (!list[ns].info.representor &&
2485                                     !list[ns].info.master)) {
2486                                 /*
2487                                  * We failed to recognize representors with
2488                                  * Netlink, let's try to perform the task
2489                                  * with sysfs.
2490                                  */
2491                                 ret =  mlx5_sysfs_switch_info
2492                                                 (list[ns].ifindex,
2493                                                  &list[ns].info);
2494                         }
2495                         if (!ret && (list[ns].info.representor ^
2496                                      list[ns].info.master)) {
2497                                 ns++;
2498                         } else if ((nd == 1) &&
2499                                    !list[ns].info.representor &&
2500                                    !list[ns].info.master) {
2501                                 /*
2502                                  * Single IB device with
2503                                  * one physical port and
2504                                  * attached network device.
2505                                  * May be SRIOV is not enabled
2506                                  * or there is no representors.
2507                                  */
2508                                 DRV_LOG(INFO, "no E-Switch support detected");
2509                                 ns++;
2510                                 break;
2511                         }
2512                 }
2513                 if (!ns) {
2514                         DRV_LOG(ERR,
2515                                 "unable to recognize master/representors"
2516                                 " on the multiple IB devices");
2517                         rte_errno = ENOENT;
2518                         ret = -rte_errno;
2519                         goto exit;
2520                 }
2521                 /*
2522                  * New kernels may add the switch_id attribute for the case
2523                  * there is no E-Switch and we wrongly recognized the
2524                  * only device as master. Override this if there is the
2525                  * single device with single port and new device name
2526                  * format present.
2527                  */
2528                 if (nd == 1 &&
2529                     list[0].info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) {
2530                         list[0].info.master = 0;
2531                         list[0].info.representor = 0;
2532                 }
2533         }
2534         MLX5_ASSERT(ns);
2535         /*
2536          * Sort list to probe devices in natural order for users convenience
2537          * (i.e. master first, then representors from lowest to highest ID).
2538          */
2539         qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
2540         /* Device specific configuration. */
2541         switch (pci_dev->id.device_id) {
2542         case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
2543         case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
2544         case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
2545         case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
2546         case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
2547         case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
2548         case PCI_DEVICE_ID_MELLANOX_CONNECTXVF:
2549                 dev_config_vf = 1;
2550                 break;
2551         default:
2552                 dev_config_vf = 0;
2553                 break;
2554         }
2555         if (eth_da.type != RTE_ETH_REPRESENTOR_NONE) {
2556                 /* Set devargs default values. */
2557                 if (eth_da.nb_mh_controllers == 0) {
2558                         eth_da.nb_mh_controllers = 1;
2559                         eth_da.mh_controllers[0] = 0;
2560                 }
2561                 if (eth_da.nb_ports == 0 && ns > 0) {
2562                         if (list[0].pf_bond >= 0 && list[0].info.representor)
2563                                 DRV_LOG(WARNING, "Representor on Bonding device should use pf#vf# syntax: %s",
2564                                         pci_dev->device.devargs->args);
2565                         eth_da.nb_ports = 1;
2566                         eth_da.ports[0] = list[0].info.pf_num;
2567                 }
2568                 if (eth_da.nb_representor_ports == 0) {
2569                         eth_da.nb_representor_ports = 1;
2570                         eth_da.representor_ports[0] = 0;
2571                 }
2572         }
2573         for (i = 0; i != ns; ++i) {
2574                 uint32_t restore;
2575
2576                 /* Default configuration. */
2577                 mlx5_os_config_default(&dev_config);
2578                 dev_config.vf = dev_config_vf;
2579                 list[i].numa_node = pci_dev->device.numa_node;
2580                 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
2581                                                  &list[i],
2582                                                  &dev_config,
2583                                                  &eth_da);
2584                 if (!list[i].eth_dev) {
2585                         if (rte_errno != EBUSY && rte_errno != EEXIST)
2586                                 break;
2587                         /* Device is disabled or already spawned. Ignore it. */
2588                         continue;
2589                 }
2590                 restore = list[i].eth_dev->data->dev_flags;
2591                 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
2592                 /**
2593                  * Each representor has a dedicated interrupts vector.
2594                  * rte_eth_copy_pci_info() assigns PF interrupts handle to
2595                  * representor eth_dev object because representor and PF
2596                  * share the same PCI address.
2597                  * Override representor device with a dedicated
2598                  * interrupts handle here.
2599                  * Representor interrupts handle is released in mlx5_dev_stop().
2600                  */
2601                 if (list[i].info.representor) {
2602                         struct rte_intr_handle *intr_handle;
2603                         intr_handle = mlx5_malloc(MLX5_MEM_SYS | MLX5_MEM_ZERO,
2604                                                   sizeof(*intr_handle), 0,
2605                                                   SOCKET_ID_ANY);
2606                         if (!intr_handle) {
2607                                 DRV_LOG(ERR,
2608                                         "port %u failed to allocate memory for interrupt handler "
2609                                         "Rx interrupts will not be supported",
2610                                         i);
2611                                 rte_errno = ENOMEM;
2612                                 ret = -rte_errno;
2613                                 goto exit;
2614                         }
2615                         list[i].eth_dev->intr_handle = intr_handle;
2616                 }
2617                 /* Restore non-PCI flags cleared by the above call. */
2618                 list[i].eth_dev->data->dev_flags |= restore;
2619                 rte_eth_dev_probing_finish(list[i].eth_dev);
2620         }
2621         if (i != ns) {
2622                 DRV_LOG(ERR,
2623                         "probe of PCI device " PCI_PRI_FMT " aborted after"
2624                         " encountering an error: %s",
2625                         owner_pci.domain, owner_pci.bus,
2626                         owner_pci.devid, owner_pci.function,
2627                         strerror(rte_errno));
2628                 ret = -rte_errno;
2629                 /* Roll back. */
2630                 while (i--) {
2631                         if (!list[i].eth_dev)
2632                                 continue;
2633                         mlx5_dev_close(list[i].eth_dev);
2634                         /* mac_addrs must not be freed because in dev_private */
2635                         list[i].eth_dev->data->mac_addrs = NULL;
2636                         claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
2637                 }
2638                 /* Restore original error. */
2639                 rte_errno = -ret;
2640         } else {
2641                 ret = 0;
2642         }
2643 exit:
2644         /*
2645          * Do the routine cleanup:
2646          * - close opened Netlink sockets
2647          * - free allocated spawn data array
2648          * - free the Infiniband device list
2649          */
2650         if (nl_rdma >= 0)
2651                 close(nl_rdma);
2652         if (nl_route >= 0)
2653                 close(nl_route);
2654         if (list)
2655                 mlx5_free(list);
2656         MLX5_ASSERT(ibv_list);
2657         mlx5_glue->free_device_list(ibv_list);
2658         return ret;
2659 }
2660
2661 static int
2662 mlx5_os_parse_eth_devargs(struct rte_device *dev,
2663                           struct rte_eth_devargs *eth_da)
2664 {
2665         int ret = 0;
2666
2667         if (dev->devargs == NULL)
2668                 return 0;
2669         memset(eth_da, 0, sizeof(*eth_da));
2670         /* Parse representor information first from class argument. */
2671         if (dev->devargs->cls_str)
2672                 ret = rte_eth_devargs_parse(dev->devargs->cls_str, eth_da);
2673         if (ret != 0) {
2674                 DRV_LOG(ERR, "failed to parse device arguments: %s",
2675                         dev->devargs->cls_str);
2676                 return -rte_errno;
2677         }
2678         if (eth_da->type == RTE_ETH_REPRESENTOR_NONE) {
2679                 /* Parse legacy device argument */
2680                 ret = rte_eth_devargs_parse(dev->devargs->args, eth_da);
2681                 if (ret) {
2682                         DRV_LOG(ERR, "failed to parse device arguments: %s",
2683                                 dev->devargs->args);
2684                         return -rte_errno;
2685                 }
2686         }
2687         return 0;
2688 }
2689
2690 /**
2691  * Callback to register a PCI device.
2692  *
2693  * This function spawns Ethernet devices out of a given PCI device.
2694  *
2695  * @param[in] pci_dev
2696  *   PCI device information.
2697  *
2698  * @return
2699  *   0 on success, a negative errno value otherwise and rte_errno is set.
2700  */
2701 static int
2702 mlx5_os_pci_probe(struct rte_pci_device *pci_dev)
2703 {
2704         struct rte_eth_devargs eth_da = { .nb_ports = 0 };
2705         int ret = 0;
2706         uint16_t p;
2707
2708         ret = mlx5_os_parse_eth_devargs(&pci_dev->device, &eth_da);
2709         if (ret != 0)
2710                 return ret;
2711
2712         if (eth_da.nb_ports > 0) {
2713                 /* Iterate all port if devargs pf is range: "pf[0-1]vf[...]". */
2714                 for (p = 0; p < eth_da.nb_ports; p++) {
2715                         ret = mlx5_os_pci_probe_pf(pci_dev, &eth_da,
2716                                                    eth_da.ports[p]);
2717                         if (ret)
2718                                 break;
2719                 }
2720                 if (ret) {
2721                         DRV_LOG(ERR, "Probe of PCI device " PCI_PRI_FMT " "
2722                                 "aborted due to proding failure of PF %u",
2723                                 pci_dev->addr.domain, pci_dev->addr.bus,
2724                                 pci_dev->addr.devid, pci_dev->addr.function,
2725                                 eth_da.ports[p]);
2726                         mlx5_net_remove(&pci_dev->device);
2727                 }
2728         } else {
2729                 ret = mlx5_os_pci_probe_pf(pci_dev, &eth_da, 0);
2730         }
2731         return ret;
2732 }
2733
2734 /* Probe a single SF device on auxiliary bus, no representor support. */
2735 static int
2736 mlx5_os_auxiliary_probe(struct rte_device *dev)
2737 {
2738         struct rte_eth_devargs eth_da = { .nb_ports = 0 };
2739         struct mlx5_dev_config config;
2740         struct mlx5_dev_spawn_data spawn = { .pf_bond = -1 };
2741         struct rte_auxiliary_device *adev = RTE_DEV_TO_AUXILIARY(dev);
2742         struct rte_eth_dev *eth_dev;
2743         int ret = 0;
2744
2745         /* Parse ethdev devargs. */
2746         ret = mlx5_os_parse_eth_devargs(dev, &eth_da);
2747         if (ret != 0)
2748                 return ret;
2749         /* Set default config data. */
2750         mlx5_os_config_default(&config);
2751         config.sf = 1;
2752         /* Init spawn data. */
2753         spawn.max_port = 1;
2754         spawn.phys_port = 1;
2755         spawn.phys_dev = mlx5_os_get_ibv_dev(dev);
2756         if (spawn.phys_dev == NULL)
2757                 return -rte_errno;
2758         ret = mlx5_auxiliary_get_ifindex(dev->name);
2759         if (ret < 0) {
2760                 DRV_LOG(ERR, "failed to get ethdev ifindex: %s", dev->name);
2761                 return ret;
2762         }
2763         spawn.ifindex = ret;
2764         spawn.numa_node = dev->numa_node;
2765         /* Spawn device. */
2766         eth_dev = mlx5_dev_spawn(dev, &spawn, &config, &eth_da);
2767         if (eth_dev == NULL)
2768                 return -rte_errno;
2769         /* Post create. */
2770         eth_dev->intr_handle = &adev->intr_handle;
2771         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
2772                 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
2773                 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_RMV;
2774                 eth_dev->data->numa_node = dev->numa_node;
2775         }
2776         rte_eth_dev_probing_finish(eth_dev);
2777         return 0;
2778 }
2779
2780 /**
2781  * Net class driver callback to probe a device.
2782  *
2783  * This function probe PCI bus device(s) or a single SF on auxiliary bus.
2784  *
2785  * @param[in] dev
2786  *   Pointer to the generic device.
2787  *
2788  * @return
2789  *   0 on success, the function cannot fail.
2790  */
2791 int
2792 mlx5_os_net_probe(struct rte_device *dev)
2793 {
2794         int ret;
2795
2796         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
2797                 mlx5_pmd_socket_init();
2798         ret = mlx5_init_once();
2799         if (ret) {
2800                 DRV_LOG(ERR, "unable to init PMD global data: %s",
2801                         strerror(rte_errno));
2802                 return -rte_errno;
2803         }
2804         if (mlx5_dev_is_pci(dev))
2805                 return mlx5_os_pci_probe(RTE_DEV_TO_PCI(dev));
2806         else
2807                 return mlx5_os_auxiliary_probe(dev);
2808 }
2809
2810 static int
2811 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
2812 {
2813         char *env;
2814         int value;
2815
2816         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2817         /* Get environment variable to store. */
2818         env = getenv(MLX5_SHUT_UP_BF);
2819         value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
2820         if (config->dbnc == MLX5_ARG_UNSET)
2821                 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
2822         else
2823                 setenv(MLX5_SHUT_UP_BF,
2824                        config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
2825         return value;
2826 }
2827
2828 static void
2829 mlx5_restore_doorbell_mapping_env(int value)
2830 {
2831         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
2832         /* Restore the original environment variable state. */
2833         if (value == MLX5_ARG_UNSET)
2834                 unsetenv(MLX5_SHUT_UP_BF);
2835         else
2836                 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
2837 }
2838
2839 /**
2840  * Extract pdn of PD object using DV API.
2841  *
2842  * @param[in] pd
2843  *   Pointer to the verbs PD object.
2844  * @param[out] pdn
2845  *   Pointer to the PD object number variable.
2846  *
2847  * @return
2848  *   0 on success, error value otherwise.
2849  */
2850 int
2851 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
2852 {
2853 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
2854         struct mlx5dv_obj obj;
2855         struct mlx5dv_pd pd_info;
2856         int ret = 0;
2857
2858         obj.pd.in = pd;
2859         obj.pd.out = &pd_info;
2860         ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
2861         if (ret) {
2862                 DRV_LOG(DEBUG, "Fail to get PD object info");
2863                 return ret;
2864         }
2865         *pdn = pd_info.pdn;
2866         return 0;
2867 #else
2868         (void)pd;
2869         (void)pdn;
2870         return -ENOTSUP;
2871 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
2872 }
2873
2874 /**
2875  * Function API to open IB device.
2876  *
2877  * This function calls the Linux glue APIs to open a device.
2878  *
2879  * @param[in] spawn
2880  *   Pointer to the IB device attributes (name, port, etc).
2881  * @param[out] config
2882  *   Pointer to device configuration structure.
2883  * @param[out] sh
2884  *   Pointer to shared context structure.
2885  *
2886  * @return
2887  *   0 on success, a positive error value otherwise.
2888  */
2889 int
2890 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
2891                      const struct mlx5_dev_config *config,
2892                      struct mlx5_dev_ctx_shared *sh)
2893 {
2894         int dbmap_env;
2895         int err = 0;
2896
2897         pthread_mutex_init(&sh->txpp.mutex, NULL);
2898         /*
2899          * Configure environment variable "MLX5_BF_SHUT_UP"
2900          * before the device creation. The rdma_core library
2901          * checks the variable at device creation and
2902          * stores the result internally.
2903          */
2904         dbmap_env = mlx5_config_doorbell_mapping_env(config);
2905         /* Try to open IB device with DV first, then usual Verbs. */
2906         errno = 0;
2907         sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
2908         if (sh->ctx) {
2909                 sh->devx = 1;
2910                 DRV_LOG(DEBUG, "DevX is supported");
2911                 /* The device is created, no need for environment. */
2912                 mlx5_restore_doorbell_mapping_env(dbmap_env);
2913         } else {
2914                 /* The environment variable is still configured. */
2915                 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
2916                 err = errno ? errno : ENODEV;
2917                 /*
2918                  * The environment variable is not needed anymore,
2919                  * all device creation attempts are completed.
2920                  */
2921                 mlx5_restore_doorbell_mapping_env(dbmap_env);
2922                 if (!sh->ctx)
2923                         return err;
2924                 DRV_LOG(DEBUG, "DevX is NOT supported");
2925                 err = 0;
2926         }
2927         if (!err && sh->ctx) {
2928                 /* Hint libmlx5 to use PMD allocator for data plane resources */
2929                 mlx5_glue->dv_set_context_attr(sh->ctx,
2930                         MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
2931                         (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
2932                                 .alloc = &mlx5_alloc_verbs_buf,
2933                                 .free = &mlx5_free_verbs_buf,
2934                                 .data = sh,
2935                         }));
2936         }
2937         return err;
2938 }
2939
2940 /**
2941  * Install shared asynchronous device events handler.
2942  * This function is implemented to support event sharing
2943  * between multiple ports of single IB device.
2944  *
2945  * @param sh
2946  *   Pointer to mlx5_dev_ctx_shared object.
2947  */
2948 void
2949 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
2950 {
2951         int ret;
2952         int flags;
2953
2954         sh->intr_handle.fd = -1;
2955         flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
2956         ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
2957                     F_SETFL, flags | O_NONBLOCK);
2958         if (ret) {
2959                 DRV_LOG(INFO, "failed to change file descriptor async event"
2960                         " queue");
2961         } else {
2962                 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
2963                 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
2964                 if (rte_intr_callback_register(&sh->intr_handle,
2965                                         mlx5_dev_interrupt_handler, sh)) {
2966                         DRV_LOG(INFO, "Fail to install the shared interrupt.");
2967                         sh->intr_handle.fd = -1;
2968                 }
2969         }
2970         if (sh->devx) {
2971 #ifdef HAVE_IBV_DEVX_ASYNC
2972                 sh->intr_handle_devx.fd = -1;
2973                 sh->devx_comp =
2974                         (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
2975                 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2976                 if (!devx_comp) {
2977                         DRV_LOG(INFO, "failed to allocate devx_comp.");
2978                         return;
2979                 }
2980                 flags = fcntl(devx_comp->fd, F_GETFL);
2981                 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2982                 if (ret) {
2983                         DRV_LOG(INFO, "failed to change file descriptor"
2984                                 " devx comp");
2985                         return;
2986                 }
2987                 sh->intr_handle_devx.fd = devx_comp->fd;
2988                 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
2989                 if (rte_intr_callback_register(&sh->intr_handle_devx,
2990                                         mlx5_dev_interrupt_handler_devx, sh)) {
2991                         DRV_LOG(INFO, "Fail to install the devx shared"
2992                                 " interrupt.");
2993                         sh->intr_handle_devx.fd = -1;
2994                 }
2995 #endif /* HAVE_IBV_DEVX_ASYNC */
2996         }
2997 }
2998
2999 /**
3000  * Uninstall shared asynchronous device events handler.
3001  * This function is implemented to support event sharing
3002  * between multiple ports of single IB device.
3003  *
3004  * @param dev
3005  *   Pointer to mlx5_dev_ctx_shared object.
3006  */
3007 void
3008 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
3009 {
3010         if (sh->intr_handle.fd >= 0)
3011                 mlx5_intr_callback_unregister(&sh->intr_handle,
3012                                               mlx5_dev_interrupt_handler, sh);
3013 #ifdef HAVE_IBV_DEVX_ASYNC
3014         if (sh->intr_handle_devx.fd >= 0)
3015                 rte_intr_callback_unregister(&sh->intr_handle_devx,
3016                                   mlx5_dev_interrupt_handler_devx, sh);
3017         if (sh->devx_comp)
3018                 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
3019 #endif
3020 }
3021
3022 /**
3023  * Read statistics by a named counter.
3024  *
3025  * @param[in] priv
3026  *   Pointer to the private device data structure.
3027  * @param[in] ctr_name
3028  *   Pointer to the name of the statistic counter to read
3029  * @param[out] stat
3030  *   Pointer to read statistic value.
3031  * @return
3032  *   0 on success and stat is valud, 1 if failed to read the value
3033  *   rte_errno is set.
3034  *
3035  */
3036 int
3037 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
3038                       uint64_t *stat)
3039 {
3040         int fd;
3041
3042         if (priv->sh) {
3043                 if (priv->q_counters != NULL &&
3044                     strcmp(ctr_name, "out_of_buffer") == 0)
3045                         return mlx5_devx_cmd_queue_counter_query
3046                                         (priv->q_counters, 0, (uint32_t *)stat);
3047                 MKSTR(path, "%s/ports/%d/hw_counters/%s",
3048                       priv->sh->ibdev_path,
3049                       priv->dev_port,
3050                       ctr_name);
3051                 fd = open(path, O_RDONLY);
3052                 /*
3053                  * in switchdev the file location is not per port
3054                  * but rather in <ibdev_path>/hw_counters/<file_name>.
3055                  */
3056                 if (fd == -1) {
3057                         MKSTR(path1, "%s/hw_counters/%s",
3058                               priv->sh->ibdev_path,
3059                               ctr_name);
3060                         fd = open(path1, O_RDONLY);
3061                 }
3062                 if (fd != -1) {
3063                         char buf[21] = {'\0'};
3064                         ssize_t n = read(fd, buf, sizeof(buf));
3065
3066                         close(fd);
3067                         if (n != -1) {
3068                                 *stat = strtoull(buf, NULL, 10);
3069                                 return 0;
3070                         }
3071                 }
3072         }
3073         *stat = 0;
3074         return 1;
3075 }
3076
3077 /**
3078  * Set the reg_mr and dereg_mr call backs
3079  *
3080  * @param reg_mr_cb[out]
3081  *   Pointer to reg_mr func
3082  * @param dereg_mr_cb[out]
3083  *   Pointer to dereg_mr func
3084  *
3085  */
3086 void
3087 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
3088                       mlx5_dereg_mr_t *dereg_mr_cb)
3089 {
3090         *reg_mr_cb = mlx5_mr_verbs_ops.reg_mr;
3091         *dereg_mr_cb = mlx5_mr_verbs_ops.dereg_mr;
3092 }
3093
3094 /**
3095  * Remove a MAC address from device
3096  *
3097  * @param dev
3098  *   Pointer to Ethernet device structure.
3099  * @param index
3100  *   MAC address index.
3101  */
3102 void
3103 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
3104 {
3105         struct mlx5_priv *priv = dev->data->dev_private;
3106         const int vf = priv->config.vf;
3107
3108         if (vf)
3109                 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
3110                                         mlx5_ifindex(dev), priv->mac_own,
3111                                         &dev->data->mac_addrs[index], index);
3112 }
3113
3114 /**
3115  * Adds a MAC address to the device
3116  *
3117  * @param dev
3118  *   Pointer to Ethernet device structure.
3119  * @param mac_addr
3120  *   MAC address to register.
3121  * @param index
3122  *   MAC address index.
3123  *
3124  * @return
3125  *   0 on success, a negative errno value otherwise
3126  */
3127 int
3128 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
3129                      uint32_t index)
3130 {
3131         struct mlx5_priv *priv = dev->data->dev_private;
3132         const int vf = priv->config.vf;
3133         int ret = 0;
3134
3135         if (vf)
3136                 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
3137                                            mlx5_ifindex(dev), priv->mac_own,
3138                                            mac, index);
3139         return ret;
3140 }
3141
3142 /**
3143  * Modify a VF MAC address
3144  *
3145  * @param priv
3146  *   Pointer to device private data.
3147  * @param mac_addr
3148  *   MAC address to modify into.
3149  * @param iface_idx
3150  *   Net device interface index
3151  * @param vf_index
3152  *   VF index
3153  *
3154  * @return
3155  *   0 on success, a negative errno value otherwise
3156  */
3157 int
3158 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
3159                            unsigned int iface_idx,
3160                            struct rte_ether_addr *mac_addr,
3161                            int vf_index)
3162 {
3163         return mlx5_nl_vf_mac_addr_modify
3164                 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
3165 }
3166
3167 /**
3168  * Set device promiscuous mode
3169  *
3170  * @param dev
3171  *   Pointer to Ethernet device structure.
3172  * @param enable
3173  *   0 - promiscuous is disabled, otherwise - enabled
3174  *
3175  * @return
3176  *   0 on success, a negative error value otherwise
3177  */
3178 int
3179 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
3180 {
3181         struct mlx5_priv *priv = dev->data->dev_private;
3182
3183         return mlx5_nl_promisc(priv->nl_socket_route,
3184                                mlx5_ifindex(dev), !!enable);
3185 }
3186
3187 /**
3188  * Set device promiscuous mode
3189  *
3190  * @param dev
3191  *   Pointer to Ethernet device structure.
3192  * @param enable
3193  *   0 - all multicase is disabled, otherwise - enabled
3194  *
3195  * @return
3196  *   0 on success, a negative error value otherwise
3197  */
3198 int
3199 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
3200 {
3201         struct mlx5_priv *priv = dev->data->dev_private;
3202
3203         return mlx5_nl_allmulti(priv->nl_socket_route,
3204                                 mlx5_ifindex(dev), !!enable);
3205 }
3206
3207 /**
3208  * Flush device MAC addresses
3209  *
3210  * @param dev
3211  *   Pointer to Ethernet device structure.
3212  *
3213  */
3214 void
3215 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev)
3216 {
3217         struct mlx5_priv *priv = dev->data->dev_private;
3218
3219         mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
3220                                dev->data->mac_addrs,
3221                                MLX5_MAX_MAC_ADDRESSES, priv->mac_own);
3222 }