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 <rte_ethdev_driver.h>
  20 #include <rte_ethdev_pci.h>
  21 #include <rte_pci.h>
  22 #include <rte_bus_pci.h>
  23 #include <rte_common.h>
  24 #include <rte_kvargs.h>
  25 #include <rte_rwlock.h>
  26 #include <rte_spinlock.h>
  27 #include <rte_string_fns.h>
  28 #include <rte_alarm.h>
  29 #include <rte_eal_paging.h>
  30
  31 #include <mlx5_glue.h>
  32 #include <mlx5_devx_cmds.h>
  33 #include <mlx5_common.h>
  34 #include <mlx5_common_mp.h>
  35 #include <mlx5_common_mr.h>
  36 #include <mlx5_malloc.h>
  37
  38 #include "mlx5_defs.h"
  39 #include "mlx5.h"
  40 #include "mlx5_common_os.h"
  41 #include "mlx5_utils.h"
  42 #include "mlx5_rxtx.h"
  43 #include "mlx5_autoconf.h"
  44 #include "mlx5_mr.h"
  45 #include "mlx5_flow.h"
  46 #include "rte_pmd_mlx5.h"
  47 #include "mlx5_verbs.h"
  48 #include "mlx5_nl.h"
  49 #include "mlx5_devx.h"
  50
  51 #define MLX5_TAGS_HLIST_ARRAY_SIZE 8192
  52
  53 #ifndef HAVE_IBV_MLX5_MOD_MPW
  54 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
  55 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
  56 #endif
  57
  58 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
  59 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
  60 #endif
  61
  62 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
  63
  64 /* Spinlock for mlx5_shared_data allocation. */
  65 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
  66
  67 /* Process local data for secondary processes. */
  68 static struct mlx5_local_data mlx5_local_data;
  69
  70 /**
  71  * Set the completion channel file descriptor interrupt as non-blocking.
  72  *
  73  * @param[in] rxq_obj
  74  *   Pointer to RQ channel object, which includes the channel fd
  75  *
  76  * @param[out] fd
  77  *   The file descriptor (representing the intetrrupt) used in this channel.
  78  *
  79  * @return
  80  *   0 on successfully setting the fd to non-blocking, non-zero otherwise.
  81  */
  82 int
  83 mlx5_os_set_nonblock_channel_fd(int fd)
  84 {
  85         int flags;
  86
  87         flags = fcntl(fd, F_GETFL);
  88         return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
  89 }
  90
  91 /**
  92  * Get mlx5 device attributes. The glue function query_device_ex() is called
  93  * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
  94  * device attributes from the glue out parameter.
  95  *
  96  * @param dev
  97  *   Pointer to ibv context.
  98  *
  99  * @param device_attr
 100  *   Pointer to mlx5 device attributes.
 101  *
 102  * @return
 103  *   0 on success, non zero error number otherwise
 104  */
 105 int
 106 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
 107 {
 108         int err;
 109         struct ibv_device_attr_ex attr_ex;
 110         memset(device_attr, 0, sizeof(*device_attr));
 111         err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
 112         if (err)
 113                 return err;
 114
 115         device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
 116         device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
 117         device_attr->max_sge = attr_ex.orig_attr.max_sge;
 118         device_attr->max_cq = attr_ex.orig_attr.max_cq;
 119         device_attr->max_qp = attr_ex.orig_attr.max_qp;
 120         device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
 121         device_attr->max_rwq_indirection_table_size =
 122                 attr_ex.rss_caps.max_rwq_indirection_table_size;
 123         device_attr->max_tso = attr_ex.tso_caps.max_tso;
 124         device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
 125
 126         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 127         err = mlx5_glue->dv_query_device(ctx, &dv_attr);
 128         if (err)
 129                 return err;
 130
 131         device_attr->flags = dv_attr.flags;
 132         device_attr->comp_mask = dv_attr.comp_mask;
 133 #ifdef HAVE_IBV_MLX5_MOD_SWP
 134         device_attr->sw_parsing_offloads =
 135                 dv_attr.sw_parsing_caps.sw_parsing_offloads;
 136 #endif
 137         device_attr->min_single_stride_log_num_of_bytes =
 138                 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
 139         device_attr->max_single_stride_log_num_of_bytes =
 140                 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
 141         device_attr->min_single_wqe_log_num_of_strides =
 142                 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
 143         device_attr->max_single_wqe_log_num_of_strides =
 144                 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
 145         device_attr->stride_supported_qpts =
 146                 dv_attr.striding_rq_caps.supported_qpts;
 147 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 148         device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
 149 #endif
 150
 151         return err;
 152 }
 153
 154 /**
 155  * Verbs callback to allocate a memory. This function should allocate the space
 156  * according to the size provided residing inside a huge page.
 157  * Please note that all allocation must respect the alignment from libmlx5
 158  * (i.e. currently rte_mem_page_size()).
 159  *
 160  * @param[in] size
 161  *   The size in bytes of the memory to allocate.
 162  * @param[in] data
 163  *   A pointer to the callback data.
 164  *
 165  * @return
 166  *   Allocated buffer, NULL otherwise and rte_errno is set.
 167  */
 168 static void *
 169 mlx5_alloc_verbs_buf(size_t size, void *data)
 170 {
 171         struct mlx5_priv *priv = data;
 172         void *ret;
 173         unsigned int socket = SOCKET_ID_ANY;
 174         size_t alignment = rte_mem_page_size();
 175         if (alignment == (size_t)-1) {
 176                 DRV_LOG(ERR, "Failed to get mem page size");
 177                 rte_errno = ENOMEM;
 178                 return NULL;
 179         }
 180
 181         if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) {
 182                 const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
 183
 184                 socket = ctrl->socket;
 185         } else if (priv->verbs_alloc_ctx.type ==
 186                    MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) {
 187                 const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
 188
 189                 socket = ctrl->socket;
 190         }
 191         MLX5_ASSERT(data != NULL);
 192         ret = mlx5_malloc(0, size, alignment, socket);
 193         if (!ret && size)
 194                 rte_errno = ENOMEM;
 195         return ret;
 196 }
 197
 198 /**
 199  * Verbs callback to free a memory.
 200  *
 201  * @param[in] ptr
 202  *   A pointer to the memory to free.
 203  * @param[in] data
 204  *   A pointer to the callback data.
 205  */
 206 static void
 207 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
 208 {
 209         MLX5_ASSERT(data != NULL);
 210         mlx5_free(ptr);
 211 }
 212
 213 /**
 214  * Initialize DR related data within private structure.
 215  * Routine checks the reference counter and does actual
 216  * resources creation/initialization only if counter is zero.
 217  *
 218  * @param[in] priv
 219  *   Pointer to the private device data structure.
 220  *
 221  * @return
 222  *   Zero on success, positive error code otherwise.
 223  */
 224 static int
 225 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 226 {
 227         struct mlx5_dev_ctx_shared *sh = priv->sh;
 228         char s[MLX5_HLIST_NAMESIZE];
 229         int err = 0;
 230
 231         if (!sh->flow_tbls)
 232                 err = mlx5_alloc_table_hash_list(priv);
 233         else
 234                 DRV_LOG(DEBUG, "sh->flow_tbls[%p] already created, reuse\n",
 235                         (void *)sh->flow_tbls);
 236         if (err)
 237                 return err;
 238         /* Create tags hash list table. */
 239         snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
 240         sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE);
 241         if (!sh->tag_table) {
 242                 DRV_LOG(ERR, "tags with hash creation failed.");
 243                 err = ENOMEM;
 244                 goto error;
 245         }
 246         snprintf(s, sizeof(s), "%s_hdr_modify", sh->ibdev_name);
 247         sh->modify_cmds = mlx5_hlist_create(s, MLX5_FLOW_HDR_MODIFY_HTABLE_SZ);
 248         if (!sh->modify_cmds) {
 249                 DRV_LOG(ERR, "hdr modify hash creation failed");
 250                 err = ENOMEM;
 251                 goto error;
 252         }
 253 #ifdef HAVE_MLX5DV_DR
 254         void *domain;
 255
 256         if (sh->dv_refcnt) {
 257                 /* Shared DV/DR structures is already initialized. */
 258                 sh->dv_refcnt++;
 259                 priv->dr_shared = 1;
 260                 return 0;
 261         }
 262         /* Reference counter is zero, we should initialize structures. */
 263         domain = mlx5_glue->dr_create_domain(sh->ctx,
 264                                              MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
 265         if (!domain) {
 266                 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
 267                 err = errno;
 268                 goto error;
 269         }
 270         sh->rx_domain = domain;
 271         domain = mlx5_glue->dr_create_domain(sh->ctx,
 272                                              MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
 273         if (!domain) {
 274                 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
 275                 err = errno;
 276                 goto error;
 277         }
 278         pthread_mutex_init(&sh->dv_mutex, NULL);
 279         sh->tx_domain = domain;
 280 #ifdef HAVE_MLX5DV_DR_ESWITCH
 281         if (priv->config.dv_esw_en) {
 282                 domain  = mlx5_glue->dr_create_domain
 283                         (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
 284                 if (!domain) {
 285                         DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
 286                         err = errno;
 287                         goto error;
 288                 }
 289                 sh->fdb_domain = domain;
 290                 sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
 291         }
 292 #endif
 293         if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
 294                 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
 295                 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
 296                 if (sh->fdb_domain)
 297                         mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
 298         }
 299         sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
 300 #endif /* HAVE_MLX5DV_DR */
 301         sh->dv_refcnt++;
 302         priv->dr_shared = 1;
 303         return 0;
 304 error:
 305         /* Rollback the created objects. */
 306         if (sh->rx_domain) {
 307                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 308                 sh->rx_domain = NULL;
 309         }
 310         if (sh->tx_domain) {
 311                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 312                 sh->tx_domain = NULL;
 313         }
 314         if (sh->fdb_domain) {
 315                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 316                 sh->fdb_domain = NULL;
 317         }
 318         if (sh->esw_drop_action) {
 319                 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
 320                 sh->esw_drop_action = NULL;
 321         }
 322         if (sh->pop_vlan_action) {
 323                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 324                 sh->pop_vlan_action = NULL;
 325         }
 326         if (sh->modify_cmds) {
 327                 mlx5_hlist_destroy(sh->modify_cmds, NULL, NULL);
 328                 sh->modify_cmds = NULL;
 329         }
 330         if (sh->tag_table) {
 331                 /* tags should be destroyed with flow before. */
 332                 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
 333                 sh->tag_table = NULL;
 334         }
 335         mlx5_free_table_hash_list(priv);
 336         return err;
 337 }
 338
 339 /**
 340  * Destroy DR related data within private structure.
 341  *
 342  * @param[in] priv
 343  *   Pointer to the private device data structure.
 344  */
 345 void
 346 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
 347 {
 348         struct mlx5_dev_ctx_shared *sh;
 349
 350         if (!priv->dr_shared)
 351                 return;
 352         priv->dr_shared = 0;
 353         sh = priv->sh;
 354         MLX5_ASSERT(sh);
 355 #ifdef HAVE_MLX5DV_DR
 356         MLX5_ASSERT(sh->dv_refcnt);
 357         if (sh->dv_refcnt && --sh->dv_refcnt)
 358                 return;
 359         if (sh->rx_domain) {
 360                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 361                 sh->rx_domain = NULL;
 362         }
 363         if (sh->tx_domain) {
 364                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 365                 sh->tx_domain = NULL;
 366         }
 367 #ifdef HAVE_MLX5DV_DR_ESWITCH
 368         if (sh->fdb_domain) {
 369                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 370                 sh->fdb_domain = NULL;
 371         }
 372         if (sh->esw_drop_action) {
 373                 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
 374                 sh->esw_drop_action = NULL;
 375         }
 376 #endif
 377         if (sh->pop_vlan_action) {
 378                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 379                 sh->pop_vlan_action = NULL;
 380         }
 381         pthread_mutex_destroy(&sh->dv_mutex);
 382 #endif /* HAVE_MLX5DV_DR */
 383         if (sh->modify_cmds) {
 384                 mlx5_hlist_destroy(sh->modify_cmds, NULL, NULL);
 385                 sh->modify_cmds = NULL;
 386         }
 387         if (sh->tag_table) {
 388                 /* tags should be destroyed with flow before. */
 389                 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
 390                 sh->tag_table = NULL;
 391         }
 392         mlx5_free_table_hash_list(priv);
 393 }
 394
 395 /**
 396  * Initialize shared data between primary and secondary process.
 397  *
 398  * A memzone is reserved by primary process and secondary processes attach to
 399  * the memzone.
 400  *
 401  * @return
 402  *   0 on success, a negative errno value otherwise and rte_errno is set.
 403  */
 404 static int
 405 mlx5_init_shared_data(void)
 406 {
 407         const struct rte_memzone *mz;
 408         int ret = 0;
 409
 410         rte_spinlock_lock(&mlx5_shared_data_lock);
 411         if (mlx5_shared_data == NULL) {
 412                 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 413                         /* Allocate shared memory. */
 414                         mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
 415                                                  sizeof(*mlx5_shared_data),
 416                                                  SOCKET_ID_ANY, 0);
 417                         if (mz == NULL) {
 418                                 DRV_LOG(ERR,
 419                                         "Cannot allocate mlx5 shared data");
 420                                 ret = -rte_errno;
 421                                 goto error;
 422                         }
 423                         mlx5_shared_data = mz->addr;
 424                         memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
 425                         rte_spinlock_init(&mlx5_shared_data->lock);
 426                 } else {
 427                         /* Lookup allocated shared memory. */
 428                         mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
 429                         if (mz == NULL) {
 430                                 DRV_LOG(ERR,
 431                                         "Cannot attach mlx5 shared data");
 432                                 ret = -rte_errno;
 433                                 goto error;
 434                         }
 435                         mlx5_shared_data = mz->addr;
 436                         memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
 437                 }
 438         }
 439 error:
 440         rte_spinlock_unlock(&mlx5_shared_data_lock);
 441         return ret;
 442 }
 443
 444 /**
 445  * PMD global initialization.
 446  *
 447  * Independent from individual device, this function initializes global
 448  * per-PMD data structures distinguishing primary and secondary processes.
 449  * Hence, each initialization is called once per a process.
 450  *
 451  * @return
 452  *   0 on success, a negative errno value otherwise and rte_errno is set.
 453  */
 454 static int
 455 mlx5_init_once(void)
 456 {
 457         struct mlx5_shared_data *sd;
 458         struct mlx5_local_data *ld = &mlx5_local_data;
 459         int ret = 0;
 460
 461         if (mlx5_init_shared_data())
 462                 return -rte_errno;
 463         sd = mlx5_shared_data;
 464         MLX5_ASSERT(sd);
 465         rte_spinlock_lock(&sd->lock);
 466         switch (rte_eal_process_type()) {
 467         case RTE_PROC_PRIMARY:
 468                 if (sd->init_done)
 469                         break;
 470                 LIST_INIT(&sd->mem_event_cb_list);
 471                 rte_rwlock_init(&sd->mem_event_rwlock);
 472                 rte_mem_event_callback_register("MLX5_MEM_EVENT_CB",
 473                                                 mlx5_mr_mem_event_cb, NULL);
 474                 ret = mlx5_mp_init_primary(MLX5_MP_NAME,
 475                                            mlx5_mp_os_primary_handle);
 476                 if (ret)
 477                         goto out;
 478                 sd->init_done = true;
 479                 break;
 480         case RTE_PROC_SECONDARY:
 481                 if (ld->init_done)
 482                         break;
 483                 ret = mlx5_mp_init_secondary(MLX5_MP_NAME,
 484                                              mlx5_mp_os_secondary_handle);
 485                 if (ret)
 486                         goto out;
 487                 ++sd->secondary_cnt;
 488                 ld->init_done = true;
 489                 break;
 490         default:
 491                 break;
 492         }
 493 out:
 494         rte_spinlock_unlock(&sd->lock);
 495         return ret;
 496 }
 497
 498 /**
 499  * Spawn an Ethernet device from Verbs information.
 500  *
 501  * @param dpdk_dev
 502  *   Backing DPDK device.
 503  * @param spawn
 504  *   Verbs device parameters (name, port, switch_info) to spawn.
 505  * @param config
 506  *   Device configuration parameters.
 507  *
 508  * @return
 509  *   A valid Ethernet device object on success, NULL otherwise and rte_errno
 510  *   is set. The following errors are defined:
 511  *
 512  *   EBUSY: device is not supposed to be spawned.
 513  *   EEXIST: device is already spawned
 514  */
 515 static struct rte_eth_dev *
 516 mlx5_dev_spawn(struct rte_device *dpdk_dev,
 517                struct mlx5_dev_spawn_data *spawn,
 518                struct mlx5_dev_config *config)
 519 {
 520         const struct mlx5_switch_info *switch_info = &spawn->info;
 521         struct mlx5_dev_ctx_shared *sh = NULL;
 522         struct ibv_port_attr port_attr;
 523         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 524         struct rte_eth_dev *eth_dev = NULL;
 525         struct mlx5_priv *priv = NULL;
 526         int err = 0;
 527         unsigned int hw_padding = 0;
 528         unsigned int mps;
 529         unsigned int cqe_comp;
 530         unsigned int cqe_pad = 0;
 531         unsigned int tunnel_en = 0;
 532         unsigned int mpls_en = 0;
 533         unsigned int swp = 0;
 534         unsigned int mprq = 0;
 535         unsigned int mprq_min_stride_size_n = 0;
 536         unsigned int mprq_max_stride_size_n = 0;
 537         unsigned int mprq_min_stride_num_n = 0;
 538         unsigned int mprq_max_stride_num_n = 0;
 539         struct rte_ether_addr mac;
 540         char name[RTE_ETH_NAME_MAX_LEN];
 541         int own_domain_id = 0;
 542         uint16_t port_id;
 543         unsigned int i;
 544 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
 545         struct mlx5dv_devx_port devx_port = { .comp_mask = 0 };
 546 #endif
 547
 548         /* Determine if this port representor is supposed to be spawned. */
 549         if (switch_info->representor && dpdk_dev->devargs) {
 550                 struct rte_eth_devargs eth_da;
 551
 552                 err = rte_eth_devargs_parse(dpdk_dev->devargs->args, &eth_da);
 553                 if (err) {
 554                         rte_errno = -err;
 555                         DRV_LOG(ERR, "failed to process device arguments: %s",
 556                                 strerror(rte_errno));
 557                         return NULL;
 558                 }
 559                 for (i = 0; i < eth_da.nb_representor_ports; ++i)
 560                         if (eth_da.representor_ports[i] ==
 561                             (uint16_t)switch_info->port_name)
 562                                 break;
 563                 if (i == eth_da.nb_representor_ports) {
 564                         rte_errno = EBUSY;
 565                         return NULL;
 566                 }
 567         }
 568         /* Build device name. */
 569         if (spawn->pf_bond <  0) {
 570                 /* Single device. */
 571                 if (!switch_info->representor)
 572                         strlcpy(name, dpdk_dev->name, sizeof(name));
 573                 else
 574                         snprintf(name, sizeof(name), "%s_representor_%u",
 575                                  dpdk_dev->name, switch_info->port_name);
 576         } else {
 577                 /* Bonding device. */
 578                 if (!switch_info->representor)
 579                         snprintf(name, sizeof(name), "%s_%s",
 580                                  dpdk_dev->name,
 581                                  mlx5_os_get_dev_device_name(spawn->phys_dev));
 582                 else
 583                         snprintf(name, sizeof(name), "%s_%s_representor_%u",
 584                                  dpdk_dev->name,
 585                                  mlx5_os_get_dev_device_name(spawn->phys_dev),
 586                                  switch_info->port_name);
 587         }
 588         /* check if the device is already spawned */
 589         if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
 590                 rte_errno = EEXIST;
 591                 return NULL;
 592         }
 593         DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
 594         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
 595                 struct mlx5_mp_id mp_id;
 596
 597                 eth_dev = rte_eth_dev_attach_secondary(name);
 598                 if (eth_dev == NULL) {
 599                         DRV_LOG(ERR, "can not attach rte ethdev");
 600                         rte_errno = ENOMEM;
 601                         return NULL;
 602                 }
 603                 eth_dev->device = dpdk_dev;
 604                 eth_dev->dev_ops = &mlx5_os_dev_sec_ops;
 605                 err = mlx5_proc_priv_init(eth_dev);
 606                 if (err)
 607                         return NULL;
 608                 mp_id.port_id = eth_dev->data->port_id;
 609                 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 610                 /* Receive command fd from primary process */
 611                 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
 612                 if (err < 0)
 613                         goto err_secondary;
 614                 /* Remap UAR for Tx queues. */
 615                 err = mlx5_tx_uar_init_secondary(eth_dev, err);
 616                 if (err)
 617                         goto err_secondary;
 618                 /*
 619                  * Ethdev pointer is still required as input since
 620                  * the primary device is not accessible from the
 621                  * secondary process.
 622                  */
 623                 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
 624                 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
 625                 return eth_dev;
 626 err_secondary:
 627                 mlx5_dev_close(eth_dev);
 628                 return NULL;
 629         }
 630         /*
 631          * Some parameters ("tx_db_nc" in particularly) are needed in
 632          * advance to create dv/verbs device context. We proceed the
 633          * devargs here to get ones, and later proceed devargs again
 634          * to override some hardware settings.
 635          */
 636         err = mlx5_args(config, dpdk_dev->devargs);
 637         if (err) {
 638                 err = rte_errno;
 639                 DRV_LOG(ERR, "failed to process device arguments: %s",
 640                         strerror(rte_errno));
 641                 goto error;
 642         }
 643         mlx5_malloc_mem_select(config->sys_mem_en);
 644         sh = mlx5_alloc_shared_dev_ctx(spawn, config);
 645         if (!sh)
 646                 return NULL;
 647         config->devx = sh->devx;
 648 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
 649         config->dest_tir = 1;
 650 #endif
 651 #ifdef HAVE_IBV_MLX5_MOD_SWP
 652         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
 653 #endif
 654         /*
 655          * Multi-packet send is supported by ConnectX-4 Lx PF as well
 656          * as all ConnectX-5 devices.
 657          */
 658 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 659         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
 660 #endif
 661 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 662         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
 663 #endif
 664         mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
 665         if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
 666                 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
 667                         DRV_LOG(DEBUG, "enhanced MPW is supported");
 668                         mps = MLX5_MPW_ENHANCED;
 669                 } else {
 670                         DRV_LOG(DEBUG, "MPW is supported");
 671                         mps = MLX5_MPW;
 672                 }
 673         } else {
 674                 DRV_LOG(DEBUG, "MPW isn't supported");
 675                 mps = MLX5_MPW_DISABLED;
 676         }
 677 #ifdef HAVE_IBV_MLX5_MOD_SWP
 678         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
 679                 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
 680         DRV_LOG(DEBUG, "SWP support: %u", swp);
 681 #endif
 682         config->swp = !!swp;
 683 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 684         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
 685                 struct mlx5dv_striding_rq_caps mprq_caps =
 686                         dv_attr.striding_rq_caps;
 687
 688                 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
 689                         mprq_caps.min_single_stride_log_num_of_bytes);
 690                 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
 691                         mprq_caps.max_single_stride_log_num_of_bytes);
 692                 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
 693                         mprq_caps.min_single_wqe_log_num_of_strides);
 694                 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
 695                         mprq_caps.max_single_wqe_log_num_of_strides);
 696                 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
 697                         mprq_caps.supported_qpts);
 698                 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
 699                 mprq = 1;
 700                 mprq_min_stride_size_n =
 701                         mprq_caps.min_single_stride_log_num_of_bytes;
 702                 mprq_max_stride_size_n =
 703                         mprq_caps.max_single_stride_log_num_of_bytes;
 704                 mprq_min_stride_num_n =
 705                         mprq_caps.min_single_wqe_log_num_of_strides;
 706                 mprq_max_stride_num_n =
 707                         mprq_caps.max_single_wqe_log_num_of_strides;
 708         }
 709 #endif
 710         if (RTE_CACHE_LINE_SIZE == 128 &&
 711             !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP))
 712                 cqe_comp = 0;
 713         else
 714                 cqe_comp = 1;
 715         config->cqe_comp = cqe_comp;
 716 #ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD
 717         /* Whether device supports 128B Rx CQE padding. */
 718         cqe_pad = RTE_CACHE_LINE_SIZE == 128 &&
 719                   (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD);
 720 #endif
 721 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 722         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
 723                 tunnel_en = ((dv_attr.tunnel_offloads_caps &
 724                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
 725                              (dv_attr.tunnel_offloads_caps &
 726                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
 727                              (dv_attr.tunnel_offloads_caps &
 728                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
 729         }
 730         DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
 731                 tunnel_en ? "" : "not ");
 732 #else
 733         DRV_LOG(WARNING,
 734                 "tunnel offloading disabled due to old OFED/rdma-core version");
 735 #endif
 736         config->tunnel_en = tunnel_en;
 737 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
 738         mpls_en = ((dv_attr.tunnel_offloads_caps &
 739                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
 740                    (dv_attr.tunnel_offloads_caps &
 741                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
 742         DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
 743                 mpls_en ? "" : "not ");
 744 #else
 745         DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
 746                 " old OFED/rdma-core version or firmware configuration");
 747 #endif
 748         config->mpls_en = mpls_en;
 749         /* Check port status. */
 750         err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
 751         if (err) {
 752                 DRV_LOG(ERR, "port query failed: %s", strerror(err));
 753                 goto error;
 754         }
 755         if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
 756                 DRV_LOG(ERR, "port is not configured in Ethernet mode");
 757                 err = EINVAL;
 758                 goto error;
 759         }
 760         if (port_attr.state != IBV_PORT_ACTIVE)
 761                 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
 762                         mlx5_glue->port_state_str(port_attr.state),
 763                         port_attr.state);
 764         /* Allocate private eth device data. */
 765         priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
 766                            sizeof(*priv),
 767                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
 768         if (priv == NULL) {
 769                 DRV_LOG(ERR, "priv allocation failure");
 770                 err = ENOMEM;
 771                 goto error;
 772         }
 773         priv->sh = sh;
 774         priv->dev_port = spawn->phys_port;
 775         priv->pci_dev = spawn->pci_dev;
 776         priv->mtu = RTE_ETHER_MTU;
 777         priv->mp_id.port_id = port_id;
 778         strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 779         /* Some internal functions rely on Netlink sockets, open them now. */
 780         priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
 781         priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
 782         priv->representor = !!switch_info->representor;
 783         priv->master = !!switch_info->master;
 784         priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
 785         priv->vport_meta_tag = 0;
 786         priv->vport_meta_mask = 0;
 787         priv->pf_bond = spawn->pf_bond;
 788 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
 789         /*
 790          * The DevX port query API is implemented. E-Switch may use
 791          * either vport or reg_c[0] metadata register to match on
 792          * vport index. The engaged part of metadata register is
 793          * defined by mask.
 794          */
 795         if (switch_info->representor || switch_info->master) {
 796                 devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT |
 797                                       MLX5DV_DEVX_PORT_MATCH_REG_C_0;
 798                 err = mlx5_glue->devx_port_query(sh->ctx, spawn->phys_port,
 799                                                  &devx_port);
 800                 if (err) {
 801                         DRV_LOG(WARNING,
 802                                 "can't query devx port %d on device %s",
 803                                 spawn->phys_port,
 804                                 mlx5_os_get_dev_device_name(spawn->phys_dev));
 805                         devx_port.comp_mask = 0;
 806                 }
 807         }
 808         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) {
 809                 priv->vport_meta_tag = devx_port.reg_c_0.value;
 810                 priv->vport_meta_mask = devx_port.reg_c_0.mask;
 811                 if (!priv->vport_meta_mask) {
 812                         DRV_LOG(ERR, "vport zero mask for port %d"
 813                                      " on bonding device %s",
 814                                      spawn->phys_port,
 815                                      mlx5_os_get_dev_device_name
 816                                                         (spawn->phys_dev));
 817                         err = ENOTSUP;
 818                         goto error;
 819                 }
 820                 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
 821                         DRV_LOG(ERR, "invalid vport tag for port %d"
 822                                      " on bonding device %s",
 823                                      spawn->phys_port,
 824                                      mlx5_os_get_dev_device_name
 825                                                         (spawn->phys_dev));
 826                         err = ENOTSUP;
 827                         goto error;
 828                 }
 829         }
 830         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) {
 831                 priv->vport_id = devx_port.vport_num;
 832         } else if (spawn->pf_bond >= 0) {
 833                 DRV_LOG(ERR, "can't deduce vport index for port %d"
 834                              " on bonding device %s",
 835                              spawn->phys_port,
 836                              mlx5_os_get_dev_device_name(spawn->phys_dev));
 837                 err = ENOTSUP;
 838                 goto error;
 839         } else {
 840                 /* Suppose vport index in compatible way. */
 841                 priv->vport_id = switch_info->representor ?
 842                                  switch_info->port_name + 1 : -1;
 843         }
 844 #else
 845         /*
 846          * Kernel/rdma_core support single E-Switch per PF configurations
 847          * only and vport_id field contains the vport index for
 848          * associated VF, which is deduced from representor port name.
 849          * For example, let's have the IB device port 10, it has
 850          * attached network device eth0, which has port name attribute
 851          * pf0vf2, we can deduce the VF number as 2, and set vport index
 852          * as 3 (2+1). This assigning schema should be changed if the
 853          * multiple E-Switch instances per PF configurations or/and PCI
 854          * subfunctions are added.
 855          */
 856         priv->vport_id = switch_info->representor ?
 857                          switch_info->port_name + 1 : -1;
 858 #endif
 859         /* representor_id field keeps the unmodified VF index. */
 860         priv->representor_id = switch_info->representor ?
 861                                switch_info->port_name : -1;
 862         /*
 863          * Look for sibling devices in order to reuse their switch domain
 864          * if any, otherwise allocate one.
 865          */
 866         MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
 867                 const struct mlx5_priv *opriv =
 868                         rte_eth_devices[port_id].data->dev_private;
 869
 870                 if (!opriv ||
 871                     opriv->sh != priv->sh ||
 872                         opriv->domain_id ==
 873                         RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
 874                         continue;
 875                 priv->domain_id = opriv->domain_id;
 876                 break;
 877         }
 878         if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
 879                 err = rte_eth_switch_domain_alloc(&priv->domain_id);
 880                 if (err) {
 881                         err = rte_errno;
 882                         DRV_LOG(ERR, "unable to allocate switch domain: %s",
 883                                 strerror(rte_errno));
 884                         goto error;
 885                 }
 886                 own_domain_id = 1;
 887         }
 888         /* Override some values set by hardware configuration. */
 889         mlx5_args(config, dpdk_dev->devargs);
 890         err = mlx5_dev_check_sibling_config(priv, config);
 891         if (err)
 892                 goto error;
 893         config->hw_csum = !!(sh->device_attr.device_cap_flags_ex &
 894                             IBV_DEVICE_RAW_IP_CSUM);
 895         DRV_LOG(DEBUG, "checksum offloading is %ssupported",
 896                 (config->hw_csum ? "" : "not "));
 897 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
 898         !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 899         DRV_LOG(DEBUG, "counters are not supported");
 900 #endif
 901 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
 902         if (config->dv_flow_en) {
 903                 DRV_LOG(WARNING, "DV flow is not supported");
 904                 config->dv_flow_en = 0;
 905         }
 906 #endif
 907         config->ind_table_max_size =
 908                 sh->device_attr.max_rwq_indirection_table_size;
 909         /*
 910          * Remove this check once DPDK supports larger/variable
 911          * indirection tables.
 912          */
 913         if (config->ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
 914                 config->ind_table_max_size = ETH_RSS_RETA_SIZE_512;
 915         DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
 916                 config->ind_table_max_size);
 917         config->hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
 918                                   IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
 919         DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
 920                 (config->hw_vlan_strip ? "" : "not "));
 921         config->hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
 922                                  IBV_RAW_PACKET_CAP_SCATTER_FCS);
 923 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
 924         hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
 925 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
 926         hw_padding = !!(sh->device_attr.device_cap_flags_ex &
 927                         IBV_DEVICE_PCI_WRITE_END_PADDING);
 928 #endif
 929         if (config->hw_padding && !hw_padding) {
 930                 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
 931                 config->hw_padding = 0;
 932         } else if (config->hw_padding) {
 933                 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
 934         }
 935         config->tso = (sh->device_attr.max_tso > 0 &&
 936                       (sh->device_attr.tso_supported_qpts &
 937                        (1 << IBV_QPT_RAW_PACKET)));
 938         if (config->tso)
 939                 config->tso_max_payload_sz = sh->device_attr.max_tso;
 940         /*
 941          * MPW is disabled by default, while the Enhanced MPW is enabled
 942          * by default.
 943          */
 944         if (config->mps == MLX5_ARG_UNSET)
 945                 config->mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
 946                                                           MLX5_MPW_DISABLED;
 947         else
 948                 config->mps = config->mps ? mps : MLX5_MPW_DISABLED;
 949         DRV_LOG(INFO, "%sMPS is %s",
 950                 config->mps == MLX5_MPW_ENHANCED ? "enhanced " :
 951                 config->mps == MLX5_MPW ? "legacy " : "",
 952                 config->mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
 953         if (config->cqe_comp && !cqe_comp) {
 954                 DRV_LOG(WARNING, "Rx CQE compression isn't supported");
 955                 config->cqe_comp = 0;
 956         }
 957         if (config->cqe_pad && !cqe_pad) {
 958                 DRV_LOG(WARNING, "Rx CQE padding isn't supported");
 959                 config->cqe_pad = 0;
 960         } else if (config->cqe_pad) {
 961                 DRV_LOG(INFO, "Rx CQE padding is enabled");
 962         }
 963         if (config->devx) {
 964                 priv->counter_fallback = 0;
 965                 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config->hca_attr);
 966                 if (err) {
 967                         err = -err;
 968                         goto error;
 969                 }
 970                 if (!config->hca_attr.flow_counters_dump)
 971                         priv->counter_fallback = 1;
 972 #ifndef HAVE_IBV_DEVX_ASYNC
 973                 priv->counter_fallback = 1;
 974 #endif
 975                 if (priv->counter_fallback)
 976                         DRV_LOG(INFO, "Use fall-back DV counter management");
 977                 /* Check for LRO support. */
 978                 if (config->dest_tir && config->hca_attr.lro_cap &&
 979                     config->dv_flow_en) {
 980                         /* TBD check tunnel lro caps. */
 981                         config->lro.supported = config->hca_attr.lro_cap;
 982                         DRV_LOG(DEBUG, "Device supports LRO");
 983                         /*
 984                          * If LRO timeout is not configured by application,
 985                          * use the minimal supported value.
 986                          */
 987                         if (!config->lro.timeout)
 988                                 config->lro.timeout =
 989                                 config->hca_attr.lro_timer_supported_periods[0];
 990                         DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
 991                                 config->lro.timeout);
 992                 }
 993 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER)
 994                 if (config->hca_attr.qos.sup &&
 995                     config->hca_attr.qos.srtcm_sup &&
 996                     config->dv_flow_en) {
 997                         uint8_t reg_c_mask =
 998                                 config->hca_attr.qos.flow_meter_reg_c_ids;
 999                         /*
1000                          * Meter needs two REG_C's for color match and pre-sfx
1001                          * flow match. Here get the REG_C for color match.
1002                          * REG_C_0 and REG_C_1 is reserved for metadata feature.
1003                          */
1004                         reg_c_mask &= 0xfc;
1005                         if (__builtin_popcount(reg_c_mask) < 1) {
1006                                 priv->mtr_en = 0;
1007                                 DRV_LOG(WARNING, "No available register for"
1008                                         " meter.");
1009                         } else {
1010                                 priv->mtr_color_reg = ffs(reg_c_mask) - 1 +
1011                                                       REG_C_0;
1012                                 priv->mtr_en = 1;
1013                                 priv->mtr_reg_share =
1014                                       config->hca_attr.qos.flow_meter_reg_share;
1015                                 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
1016                                         priv->mtr_color_reg);
1017                         }
1018                 }
1019 #endif
1020         }
1021         if (config->tx_pp) {
1022                 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
1023                         config->hca_attr.dev_freq_khz);
1024                 DRV_LOG(DEBUG, "Packet pacing is %ssupported",
1025                         config->hca_attr.qos.packet_pacing ? "" : "not ");
1026                 DRV_LOG(DEBUG, "Cross channel ops are %ssupported",
1027                         config->hca_attr.cross_channel ? "" : "not ");
1028                 DRV_LOG(DEBUG, "WQE index ignore is %ssupported",
1029                         config->hca_attr.wqe_index_ignore ? "" : "not ");
1030                 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported",
1031                         config->hca_attr.non_wire_sq ? "" : "not ");
1032                 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
1033                         config->hca_attr.log_max_static_sq_wq ? "" : "not ",
1034                         config->hca_attr.log_max_static_sq_wq);
1035                 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported",
1036                         config->hca_attr.qos.wqe_rate_pp ? "" : "not ");
1037                 if (!config->devx) {
1038                         DRV_LOG(ERR, "DevX is required for packet pacing");
1039                         err = ENODEV;
1040                         goto error;
1041                 }
1042                 if (!config->hca_attr.qos.packet_pacing) {
1043                         DRV_LOG(ERR, "Packet pacing is not supported");
1044                         err = ENODEV;
1045                         goto error;
1046                 }
1047                 if (!config->hca_attr.cross_channel) {
1048                         DRV_LOG(ERR, "Cross channel operations are"
1049                                      " required for packet pacing");
1050                         err = ENODEV;
1051                         goto error;
1052                 }
1053                 if (!config->hca_attr.wqe_index_ignore) {
1054                         DRV_LOG(ERR, "WQE index ignore feature is"
1055                                      " required for packet pacing");
1056                         err = ENODEV;
1057                         goto error;
1058                 }
1059                 if (!config->hca_attr.non_wire_sq) {
1060                         DRV_LOG(ERR, "Non-wire SQ feature is"
1061                                      " required for packet pacing");
1062                         err = ENODEV;
1063                         goto error;
1064                 }
1065                 if (!config->hca_attr.log_max_static_sq_wq) {
1066                         DRV_LOG(ERR, "Static WQE SQ feature is"
1067                                      " required for packet pacing");
1068                         err = ENODEV;
1069                         goto error;
1070                 }
1071                 if (!config->hca_attr.qos.wqe_rate_pp) {
1072                         DRV_LOG(ERR, "WQE rate mode is required"
1073                                      " for packet pacing");
1074                         err = ENODEV;
1075                         goto error;
1076                 }
1077 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
1078                 DRV_LOG(ERR, "DevX does not provide UAR offset,"
1079                              " can't create queues for packet pacing");
1080                 err = ENODEV;
1081                 goto error;
1082 #endif
1083         }
1084         if (config->devx) {
1085                 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
1086
1087                 err = config->hca_attr.access_register_user ?
1088                         mlx5_devx_cmd_register_read
1089                                 (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0,
1090                                 reg, MLX5_ST_SZ_DW(register_mtutc)) : ENOTSUP;
1091                 if (!err) {
1092                         uint32_t ts_mode;
1093
1094                         /* MTUTC register is read successfully. */
1095                         ts_mode = MLX5_GET(register_mtutc, reg,
1096                                            time_stamp_mode);
1097                         if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME)
1098                                 config->rt_timestamp = 1;
1099                 } else {
1100                         /* Kernel does not support register reading. */
1101                         if (config->hca_attr.dev_freq_khz ==
1102                                                  (NS_PER_S / MS_PER_S))
1103                                 config->rt_timestamp = 1;
1104                 }
1105         }
1106         /*
1107          * If HW has bug working with tunnel packet decapsulation and
1108          * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip
1109          * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore.
1110          */
1111         if (config->hca_attr.scatter_fcs_w_decap_disable && config->decap_en)
1112                 config->hw_fcs_strip = 0;
1113         DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
1114                 (config->hw_fcs_strip ? "" : "not "));
1115         if (config->mprq.enabled && mprq) {
1116                 if (config->mprq.stride_num_n &&
1117                     (config->mprq.stride_num_n > mprq_max_stride_num_n ||
1118                      config->mprq.stride_num_n < mprq_min_stride_num_n)) {
1119                         config->mprq.stride_num_n =
1120                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1121                                                 mprq_min_stride_num_n),
1122                                         mprq_max_stride_num_n);
1123                         DRV_LOG(WARNING,
1124                                 "the number of strides"
1125                                 " for Multi-Packet RQ is out of range,"
1126                                 " setting default value (%u)",
1127                                 1 << config->mprq.stride_num_n);
1128                 }
1129                 if (config->mprq.stride_size_n &&
1130                     (config->mprq.stride_size_n > mprq_max_stride_size_n ||
1131                      config->mprq.stride_size_n < mprq_min_stride_size_n)) {
1132                         config->mprq.stride_size_n =
1133                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
1134                                                 mprq_min_stride_size_n),
1135                                         mprq_max_stride_size_n);
1136                         DRV_LOG(WARNING,
1137                                 "the size of a stride"
1138                                 " for Multi-Packet RQ is out of range,"
1139                                 " setting default value (%u)",
1140                                 1 << config->mprq.stride_size_n);
1141                 }
1142                 config->mprq.min_stride_size_n = mprq_min_stride_size_n;
1143                 config->mprq.max_stride_size_n = mprq_max_stride_size_n;
1144         } else if (config->mprq.enabled && !mprq) {
1145                 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1146                 config->mprq.enabled = 0;
1147         }
1148         if (config->max_dump_files_num == 0)
1149                 config->max_dump_files_num = 128;
1150         eth_dev = rte_eth_dev_allocate(name);
1151         if (eth_dev == NULL) {
1152                 DRV_LOG(ERR, "can not allocate rte ethdev");
1153                 err = ENOMEM;
1154                 goto error;
1155         }
1156         /* Flag to call rte_eth_dev_release_port() in rte_eth_dev_close(). */
1157         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
1158         if (priv->representor) {
1159                 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1160                 eth_dev->data->representor_id = priv->representor_id;
1161         }
1162         /*
1163          * Store associated network device interface index. This index
1164          * is permanent throughout the lifetime of device. So, we may store
1165          * the ifindex here and use the cached value further.
1166          */
1167         MLX5_ASSERT(spawn->ifindex);
1168         priv->if_index = spawn->ifindex;
1169         eth_dev->data->dev_private = priv;
1170         priv->dev_data = eth_dev->data;
1171         eth_dev->data->mac_addrs = priv->mac;
1172         eth_dev->device = dpdk_dev;
1173         /* Configure the first MAC address by default. */
1174         if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1175                 DRV_LOG(ERR,
1176                         "port %u cannot get MAC address, is mlx5_en"
1177                         " loaded? (errno: %s)",
1178                         eth_dev->data->port_id, strerror(rte_errno));
1179                 err = ENODEV;
1180                 goto error;
1181         }
1182         DRV_LOG(INFO,
1183                 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1184                 eth_dev->data->port_id,
1185                 mac.addr_bytes[0], mac.addr_bytes[1],
1186                 mac.addr_bytes[2], mac.addr_bytes[3],
1187                 mac.addr_bytes[4], mac.addr_bytes[5]);
1188 #ifdef RTE_LIBRTE_MLX5_DEBUG
1189         {
1190                 char ifname[IF_NAMESIZE];
1191
1192                 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1193                         DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1194                                 eth_dev->data->port_id, ifname);
1195                 else
1196                         DRV_LOG(DEBUG, "port %u ifname is unknown",
1197                                 eth_dev->data->port_id);
1198         }
1199 #endif
1200         /* Get actual MTU if possible. */
1201         err = mlx5_get_mtu(eth_dev, &priv->mtu);
1202         if (err) {
1203                 err = rte_errno;
1204                 goto error;
1205         }
1206         DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1207                 priv->mtu);
1208         /* Initialize burst functions to prevent crashes before link-up. */
1209         eth_dev->rx_pkt_burst = removed_rx_burst;
1210         eth_dev->tx_pkt_burst = removed_tx_burst;
1211         eth_dev->dev_ops = &mlx5_os_dev_ops;
1212         /* Register MAC address. */
1213         claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1214         if (config->vf && config->vf_nl_en)
1215                 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1216                                       mlx5_ifindex(eth_dev),
1217                                       eth_dev->data->mac_addrs,
1218                                       MLX5_MAX_MAC_ADDRESSES);
1219         priv->flows = 0;
1220         priv->ctrl_flows = 0;
1221         TAILQ_INIT(&priv->flow_meters);
1222         TAILQ_INIT(&priv->flow_meter_profiles);
1223         /* Hint libmlx5 to use PMD allocator for data plane resources */
1224         mlx5_glue->dv_set_context_attr(sh->ctx,
1225                         MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1226                         (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
1227                                 .alloc = &mlx5_alloc_verbs_buf,
1228                                 .free = &mlx5_free_verbs_buf,
1229                                 .data = priv,
1230                         }));
1231         /* Bring Ethernet device up. */
1232         DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1233                 eth_dev->data->port_id);
1234         mlx5_set_link_up(eth_dev);
1235         /*
1236          * Even though the interrupt handler is not installed yet,
1237          * interrupts will still trigger on the async_fd from
1238          * Verbs context returned by ibv_open_device().
1239          */
1240         mlx5_link_update(eth_dev, 0);
1241 #ifdef HAVE_MLX5DV_DR_ESWITCH
1242         if (!(config->hca_attr.eswitch_manager && config->dv_flow_en &&
1243               (switch_info->representor || switch_info->master)))
1244                 config->dv_esw_en = 0;
1245 #else
1246         config->dv_esw_en = 0;
1247 #endif
1248         /* Detect minimal data bytes to inline. */
1249         mlx5_set_min_inline(spawn, config);
1250         /* Store device configuration on private structure. */
1251         priv->config = *config;
1252         /* Create context for virtual machine VLAN workaround. */
1253         priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1254         if (config->dv_flow_en) {
1255                 err = mlx5_alloc_shared_dr(priv);
1256                 if (err)
1257                         goto error;
1258                 /*
1259                  * RSS id is shared with meter flow id. Meter flow id can only
1260                  * use the 24 MSB of the register.
1261                  */
1262                 priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX >>
1263                                      MLX5_MTR_COLOR_BITS);
1264                 if (!priv->qrss_id_pool) {
1265                         DRV_LOG(ERR, "can't create flow id pool");
1266                         err = ENOMEM;
1267                         goto error;
1268                 }
1269         }
1270         if (config->devx && config->dv_flow_en) {
1271                 priv->obj_ops = devx_obj_ops;
1272                 priv->obj_ops.hrxq_drop_new = ibv_obj_ops.hrxq_drop_new;
1273                 priv->obj_ops.hrxq_drop_release = ibv_obj_ops.hrxq_drop_release;
1274         } else {
1275                 priv->obj_ops = ibv_obj_ops;
1276         }
1277         /* Supported Verbs flow priority number detection. */
1278         err = mlx5_flow_discover_priorities(eth_dev);
1279         if (err < 0) {
1280                 err = -err;
1281                 goto error;
1282         }
1283         priv->config.flow_prio = err;
1284         if (!priv->config.dv_esw_en &&
1285             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1286                 DRV_LOG(WARNING, "metadata mode %u is not supported "
1287                                  "(no E-Switch)", priv->config.dv_xmeta_en);
1288                 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1289         }
1290         mlx5_set_metadata_mask(eth_dev);
1291         if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1292             !priv->sh->dv_regc0_mask) {
1293                 DRV_LOG(ERR, "metadata mode %u is not supported "
1294                              "(no metadata reg_c[0] is available)",
1295                              priv->config.dv_xmeta_en);
1296                         err = ENOTSUP;
1297                         goto error;
1298         }
1299         /*
1300          * Allocate the buffer for flow creating, just once.
1301          * The allocation must be done before any flow creating.
1302          */
1303         mlx5_flow_alloc_intermediate(eth_dev);
1304         /* Query availability of metadata reg_c's. */
1305         err = mlx5_flow_discover_mreg_c(eth_dev);
1306         if (err < 0) {
1307                 err = -err;
1308                 goto error;
1309         }
1310         if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1311                 DRV_LOG(DEBUG,
1312                         "port %u extensive metadata register is not supported",
1313                         eth_dev->data->port_id);
1314                 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1315                         DRV_LOG(ERR, "metadata mode %u is not supported "
1316                                      "(no metadata registers available)",
1317                                      priv->config.dv_xmeta_en);
1318                         err = ENOTSUP;
1319                         goto error;
1320                 }
1321         }
1322         if (priv->config.dv_flow_en &&
1323             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1324             mlx5_flow_ext_mreg_supported(eth_dev) &&
1325             priv->sh->dv_regc0_mask) {
1326                 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1327                                                       MLX5_FLOW_MREG_HTABLE_SZ);
1328                 if (!priv->mreg_cp_tbl) {
1329                         err = ENOMEM;
1330                         goto error;
1331                 }
1332         }
1333         return eth_dev;
1334 error:
1335         if (priv) {
1336                 if (priv->mreg_cp_tbl)
1337                         mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL);
1338                 if (priv->sh)
1339                         mlx5_os_free_shared_dr(priv);
1340                 if (priv->nl_socket_route >= 0)
1341                         close(priv->nl_socket_route);
1342                 if (priv->nl_socket_rdma >= 0)
1343                         close(priv->nl_socket_rdma);
1344                 if (priv->vmwa_context)
1345                         mlx5_vlan_vmwa_exit(priv->vmwa_context);
1346                 if (priv->qrss_id_pool)
1347                         mlx5_flow_id_pool_release(priv->qrss_id_pool);
1348                 if (own_domain_id)
1349                         claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1350                 mlx5_free(priv);
1351                 if (eth_dev != NULL)
1352                         eth_dev->data->dev_private = NULL;
1353         }
1354         if (eth_dev != NULL) {
1355                 /* mac_addrs must not be freed alone because part of
1356                  * dev_private
1357                  **/
1358                 eth_dev->data->mac_addrs = NULL;
1359                 rte_eth_dev_release_port(eth_dev);
1360         }
1361         if (sh)
1362                 mlx5_free_shared_dev_ctx(sh);
1363         MLX5_ASSERT(err > 0);
1364         rte_errno = err;
1365         return NULL;
1366 }
1367
1368 /**
1369  * Comparison callback to sort device data.
1370  *
1371  * This is meant to be used with qsort().
1372  *
1373  * @param a[in]
1374  *   Pointer to pointer to first data object.
1375  * @param b[in]
1376  *   Pointer to pointer to second data object.
1377  *
1378  * @return
1379  *   0 if both objects are equal, less than 0 if the first argument is less
1380  *   than the second, greater than 0 otherwise.
1381  */
1382 static int
1383 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1384 {
1385         const struct mlx5_switch_info *si_a =
1386                 &((const struct mlx5_dev_spawn_data *)a)->info;
1387         const struct mlx5_switch_info *si_b =
1388                 &((const struct mlx5_dev_spawn_data *)b)->info;
1389         int ret;
1390
1391         /* Master device first. */
1392         ret = si_b->master - si_a->master;
1393         if (ret)
1394                 return ret;
1395         /* Then representor devices. */
1396         ret = si_b->representor - si_a->representor;
1397         if (ret)
1398                 return ret;
1399         /* Unidentified devices come last in no specific order. */
1400         if (!si_a->representor)
1401                 return 0;
1402         /* Order representors by name. */
1403         return si_a->port_name - si_b->port_name;
1404 }
1405
1406 /**
1407  * Match PCI information for possible slaves of bonding device.
1408  *
1409  * @param[in] ibv_dev
1410  *   Pointer to Infiniband device structure.
1411  * @param[in] pci_dev
1412  *   Pointer to PCI device structure to match PCI address.
1413  * @param[in] nl_rdma
1414  *   Netlink RDMA group socket handle.
1415  *
1416  * @return
1417  *   negative value if no bonding device found, otherwise
1418  *   positive index of slave PF in bonding.
1419  */
1420 static int
1421 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
1422                            const struct rte_pci_device *pci_dev,
1423                            int nl_rdma)
1424 {
1425         char ifname[IF_NAMESIZE + 1];
1426         unsigned int ifindex;
1427         unsigned int np, i;
1428         FILE *file = NULL;
1429         int pf = -1;
1430
1431         /*
1432          * Try to get master device name. If something goes
1433          * wrong suppose the lack of kernel support and no
1434          * bonding devices.
1435          */
1436         if (nl_rdma < 0)
1437                 return -1;
1438         if (!strstr(ibv_dev->name, "bond"))
1439                 return -1;
1440         np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
1441         if (!np)
1442                 return -1;
1443         /*
1444          * The Master device might not be on the predefined
1445          * port (not on port index 1, it is not garanted),
1446          * we have to scan all Infiniband device port and
1447          * find master.
1448          */
1449         for (i = 1; i <= np; ++i) {
1450                 /* Check whether Infiniband port is populated. */
1451                 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
1452                 if (!ifindex)
1453                         continue;
1454                 if (!if_indextoname(ifindex, ifname))
1455                         continue;
1456                 /* Try to read bonding slave names from sysfs. */
1457                 MKSTR(slaves,
1458                       "/sys/class/net/%s/master/bonding/slaves", ifname);
1459                 file = fopen(slaves, "r");
1460                 if (file)
1461                         break;
1462         }
1463         if (!file)
1464                 return -1;
1465         /* Use safe format to check maximal buffer length. */
1466         MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
1467         while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
1468                 char tmp_str[IF_NAMESIZE + 32];
1469                 struct rte_pci_addr pci_addr;
1470                 struct mlx5_switch_info info;
1471
1472                 /* Process slave interface names in the loop. */
1473                 snprintf(tmp_str, sizeof(tmp_str),
1474                          "/sys/class/net/%s", ifname);
1475                 if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) {
1476                         DRV_LOG(WARNING, "can not get PCI address"
1477                                          " for netdev \"%s\"", ifname);
1478                         continue;
1479                 }
1480                 if (pci_dev->addr.domain != pci_addr.domain ||
1481                     pci_dev->addr.bus != pci_addr.bus ||
1482                     pci_dev->addr.devid != pci_addr.devid ||
1483                     pci_dev->addr.function != pci_addr.function)
1484                         continue;
1485                 /* Slave interface PCI address match found. */
1486                 fclose(file);
1487                 snprintf(tmp_str, sizeof(tmp_str),
1488                          "/sys/class/net/%s/phys_port_name", ifname);
1489                 file = fopen(tmp_str, "rb");
1490                 if (!file)
1491                         break;
1492                 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
1493                 if (fscanf(file, "%32s", tmp_str) == 1)
1494                         mlx5_translate_port_name(tmp_str, &info);
1495                 if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY ||
1496                     info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
1497                         pf = info.port_name;
1498                 break;
1499         }
1500         if (file)
1501                 fclose(file);
1502         return pf;
1503 }
1504
1505 /**
1506  * DPDK callback to register a PCI device.
1507  *
1508  * This function spawns Ethernet devices out of a given PCI device.
1509  *
1510  * @param[in] pci_drv
1511  *   PCI driver structure (mlx5_driver).
1512  * @param[in] pci_dev
1513  *   PCI device information.
1514  *
1515  * @return
1516  *   0 on success, a negative errno value otherwise and rte_errno is set.
1517  */
1518 int
1519 mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1520                   struct rte_pci_device *pci_dev)
1521 {
1522         struct ibv_device **ibv_list;
1523         /*
1524          * Number of found IB Devices matching with requested PCI BDF.
1525          * nd != 1 means there are multiple IB devices over the same
1526          * PCI device and we have representors and master.
1527          */
1528         unsigned int nd = 0;
1529         /*
1530          * Number of found IB device Ports. nd = 1 and np = 1..n means
1531          * we have the single multiport IB device, and there may be
1532          * representors attached to some of found ports.
1533          */
1534         unsigned int np = 0;
1535         /*
1536          * Number of DPDK ethernet devices to Spawn - either over
1537          * multiple IB devices or multiple ports of single IB device.
1538          * Actually this is the number of iterations to spawn.
1539          */
1540         unsigned int ns = 0;
1541         /*
1542          * Bonding device
1543          *   < 0 - no bonding device (single one)
1544          *  >= 0 - bonding device (value is slave PF index)
1545          */
1546         int bd = -1;
1547         struct mlx5_dev_spawn_data *list = NULL;
1548         struct mlx5_dev_config dev_config;
1549         unsigned int dev_config_vf;
1550         int ret;
1551
1552         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
1553                 mlx5_pmd_socket_init();
1554         ret = mlx5_init_once();
1555         if (ret) {
1556                 DRV_LOG(ERR, "unable to init PMD global data: %s",
1557                         strerror(rte_errno));
1558                 return -rte_errno;
1559         }
1560         errno = 0;
1561         ibv_list = mlx5_glue->get_device_list(&ret);
1562         if (!ibv_list) {
1563                 rte_errno = errno ? errno : ENOSYS;
1564                 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
1565                 return -rte_errno;
1566         }
1567         /*
1568          * First scan the list of all Infiniband devices to find
1569          * matching ones, gathering into the list.
1570          */
1571         struct ibv_device *ibv_match[ret + 1];
1572         int nl_route = mlx5_nl_init(NETLINK_ROUTE);
1573         int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
1574         unsigned int i;
1575
1576         while (ret-- > 0) {
1577                 struct rte_pci_addr pci_addr;
1578
1579                 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
1580                 bd = mlx5_device_bond_pci_match
1581                                 (ibv_list[ret], pci_dev, nl_rdma);
1582                 if (bd >= 0) {
1583                         /*
1584                          * Bonding device detected. Only one match is allowed,
1585                          * the bonding is supported over multi-port IB device,
1586                          * there should be no matches on representor PCI
1587                          * functions or non VF LAG bonding devices with
1588                          * specified address.
1589                          */
1590                         if (nd) {
1591                                 DRV_LOG(ERR,
1592                                         "multiple PCI match on bonding device"
1593                                         "\"%s\" found", ibv_list[ret]->name);
1594                                 rte_errno = ENOENT;
1595                                 ret = -rte_errno;
1596                                 goto exit;
1597                         }
1598                         DRV_LOG(INFO, "PCI information matches for"
1599                                       " slave %d bonding device \"%s\"",
1600                                       bd, ibv_list[ret]->name);
1601                         ibv_match[nd++] = ibv_list[ret];
1602                         break;
1603                 }
1604                 if (mlx5_dev_to_pci_addr
1605                         (ibv_list[ret]->ibdev_path, &pci_addr))
1606                         continue;
1607                 if (pci_dev->addr.domain != pci_addr.domain ||
1608                     pci_dev->addr.bus != pci_addr.bus ||
1609                     pci_dev->addr.devid != pci_addr.devid ||
1610                     pci_dev->addr.function != pci_addr.function)
1611                         continue;
1612                 DRV_LOG(INFO, "PCI information matches for device \"%s\"",
1613                         ibv_list[ret]->name);
1614                 ibv_match[nd++] = ibv_list[ret];
1615         }
1616         ibv_match[nd] = NULL;
1617         if (!nd) {
1618                 /* No device matches, just complain and bail out. */
1619                 DRV_LOG(WARNING,
1620                         "no Verbs device matches PCI device " PCI_PRI_FMT ","
1621                         " are kernel drivers loaded?",
1622                         pci_dev->addr.domain, pci_dev->addr.bus,
1623                         pci_dev->addr.devid, pci_dev->addr.function);
1624                 rte_errno = ENOENT;
1625                 ret = -rte_errno;
1626                 goto exit;
1627         }
1628         if (nd == 1) {
1629                 /*
1630                  * Found single matching device may have multiple ports.
1631                  * Each port may be representor, we have to check the port
1632                  * number and check the representors existence.
1633                  */
1634                 if (nl_rdma >= 0)
1635                         np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
1636                 if (!np)
1637                         DRV_LOG(WARNING, "can not get IB device \"%s\""
1638                                          " ports number", ibv_match[0]->name);
1639                 if (bd >= 0 && !np) {
1640                         DRV_LOG(ERR, "can not get ports"
1641                                      " for bonding device");
1642                         rte_errno = ENOENT;
1643                         ret = -rte_errno;
1644                         goto exit;
1645                 }
1646         }
1647 #ifndef HAVE_MLX5DV_DR_DEVX_PORT
1648         if (bd >= 0) {
1649                 /*
1650                  * This may happen if there is VF LAG kernel support and
1651                  * application is compiled with older rdma_core library.
1652                  */
1653                 DRV_LOG(ERR,
1654                         "No kernel/verbs support for VF LAG bonding found.");
1655                 rte_errno = ENOTSUP;
1656                 ret = -rte_errno;
1657                 goto exit;
1658         }
1659 #endif
1660         /*
1661          * Now we can determine the maximal
1662          * amount of devices to be spawned.
1663          */
1664         list = mlx5_malloc(MLX5_MEM_ZERO,
1665                            sizeof(struct mlx5_dev_spawn_data) *
1666                            (np ? np : nd),
1667                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1668         if (!list) {
1669                 DRV_LOG(ERR, "spawn data array allocation failure");
1670                 rte_errno = ENOMEM;
1671                 ret = -rte_errno;
1672                 goto exit;
1673         }
1674         if (bd >= 0 || np > 1) {
1675                 /*
1676                  * Single IB device with multiple ports found,
1677                  * it may be E-Switch master device and representors.
1678                  * We have to perform identification through the ports.
1679                  */
1680                 MLX5_ASSERT(nl_rdma >= 0);
1681                 MLX5_ASSERT(ns == 0);
1682                 MLX5_ASSERT(nd == 1);
1683                 MLX5_ASSERT(np);
1684                 for (i = 1; i <= np; ++i) {
1685                         list[ns].max_port = np;
1686                         list[ns].phys_port = i;
1687                         list[ns].phys_dev = ibv_match[0];
1688                         list[ns].eth_dev = NULL;
1689                         list[ns].pci_dev = pci_dev;
1690                         list[ns].pf_bond = bd;
1691                         list[ns].ifindex = mlx5_nl_ifindex
1692                                 (nl_rdma,
1693                                 mlx5_os_get_dev_device_name
1694                                                 (list[ns].phys_dev), i);
1695                         if (!list[ns].ifindex) {
1696                                 /*
1697                                  * No network interface index found for the
1698                                  * specified port, it means there is no
1699                                  * representor on this port. It's OK,
1700                                  * there can be disabled ports, for example
1701                                  * if sriov_numvfs < sriov_totalvfs.
1702                                  */
1703                                 continue;
1704                         }
1705                         ret = -1;
1706                         if (nl_route >= 0)
1707                                 ret = mlx5_nl_switch_info
1708                                                (nl_route,
1709                                                 list[ns].ifindex,
1710                                                 &list[ns].info);
1711                         if (ret || (!list[ns].info.representor &&
1712                                     !list[ns].info.master)) {
1713                                 /*
1714                                  * We failed to recognize representors with
1715                                  * Netlink, let's try to perform the task
1716                                  * with sysfs.
1717                                  */
1718                                 ret =  mlx5_sysfs_switch_info
1719                                                 (list[ns].ifindex,
1720                                                  &list[ns].info);
1721                         }
1722                         if (!ret && bd >= 0) {
1723                                 switch (list[ns].info.name_type) {
1724                                 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
1725                                         if (list[ns].info.port_name == bd)
1726                                                 ns++;
1727                                         break;
1728                                 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
1729                                         /* Fallthrough */
1730                                 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
1731                                         if (list[ns].info.pf_num == bd)
1732                                                 ns++;
1733                                         break;
1734                                 default:
1735                                         break;
1736                                 }
1737                                 continue;
1738                         }
1739                         if (!ret && (list[ns].info.representor ^
1740                                      list[ns].info.master))
1741                                 ns++;
1742                 }
1743                 if (!ns) {
1744                         DRV_LOG(ERR,
1745                                 "unable to recognize master/representors"
1746                                 " on the IB device with multiple ports");
1747                         rte_errno = ENOENT;
1748                         ret = -rte_errno;
1749                         goto exit;
1750                 }
1751         } else {
1752                 /*
1753                  * The existence of several matching entries (nd > 1) means
1754                  * port representors have been instantiated. No existing Verbs
1755                  * call nor sysfs entries can tell them apart, this can only
1756                  * be done through Netlink calls assuming kernel drivers are
1757                  * recent enough to support them.
1758                  *
1759                  * In the event of identification failure through Netlink,
1760                  * try again through sysfs, then:
1761                  *
1762                  * 1. A single IB device matches (nd == 1) with single
1763                  *    port (np=0/1) and is not a representor, assume
1764                  *    no switch support.
1765                  *
1766                  * 2. Otherwise no safe assumptions can be made;
1767                  *    complain louder and bail out.
1768                  */
1769                 for (i = 0; i != nd; ++i) {
1770                         memset(&list[ns].info, 0, sizeof(list[ns].info));
1771                         list[ns].max_port = 1;
1772                         list[ns].phys_port = 1;
1773                         list[ns].phys_dev = ibv_match[i];
1774                         list[ns].eth_dev = NULL;
1775                         list[ns].pci_dev = pci_dev;
1776                         list[ns].pf_bond = -1;
1777                         list[ns].ifindex = 0;
1778                         if (nl_rdma >= 0)
1779                                 list[ns].ifindex = mlx5_nl_ifindex
1780                                 (nl_rdma,
1781                                 mlx5_os_get_dev_device_name
1782                                                 (list[ns].phys_dev), 1);
1783                         if (!list[ns].ifindex) {
1784                                 char ifname[IF_NAMESIZE];
1785
1786                                 /*
1787                                  * Netlink failed, it may happen with old
1788                                  * ib_core kernel driver (before 4.16).
1789                                  * We can assume there is old driver because
1790                                  * here we are processing single ports IB
1791                                  * devices. Let's try sysfs to retrieve
1792                                  * the ifindex. The method works for
1793                                  * master device only.
1794                                  */
1795                                 if (nd > 1) {
1796                                         /*
1797                                          * Multiple devices found, assume
1798                                          * representors, can not distinguish
1799                                          * master/representor and retrieve
1800                                          * ifindex via sysfs.
1801                                          */
1802                                         continue;
1803                                 }
1804                                 ret = mlx5_get_ifname_sysfs
1805                                         (ibv_match[i]->ibdev_path, ifname);
1806                                 if (!ret)
1807                                         list[ns].ifindex =
1808                                                 if_nametoindex(ifname);
1809                                 if (!list[ns].ifindex) {
1810                                         /*
1811                                          * No network interface index found
1812                                          * for the specified device, it means
1813                                          * there it is neither representor
1814                                          * nor master.
1815                                          */
1816                                         continue;
1817                                 }
1818                         }
1819                         ret = -1;
1820                         if (nl_route >= 0)
1821                                 ret = mlx5_nl_switch_info
1822                                                (nl_route,
1823                                                 list[ns].ifindex,
1824                                                 &list[ns].info);
1825                         if (ret || (!list[ns].info.representor &&
1826                                     !list[ns].info.master)) {
1827                                 /*
1828                                  * We failed to recognize representors with
1829                                  * Netlink, let's try to perform the task
1830                                  * with sysfs.
1831                                  */
1832                                 ret =  mlx5_sysfs_switch_info
1833                                                 (list[ns].ifindex,
1834                                                  &list[ns].info);
1835                         }
1836                         if (!ret && (list[ns].info.representor ^
1837                                      list[ns].info.master)) {
1838                                 ns++;
1839                         } else if ((nd == 1) &&
1840                                    !list[ns].info.representor &&
1841                                    !list[ns].info.master) {
1842                                 /*
1843                                  * Single IB device with
1844                                  * one physical port and
1845                                  * attached network device.
1846                                  * May be SRIOV is not enabled
1847                                  * or there is no representors.
1848                                  */
1849                                 DRV_LOG(INFO, "no E-Switch support detected");
1850                                 ns++;
1851                                 break;
1852                         }
1853                 }
1854                 if (!ns) {
1855                         DRV_LOG(ERR,
1856                                 "unable to recognize master/representors"
1857                                 " on the multiple IB devices");
1858                         rte_errno = ENOENT;
1859                         ret = -rte_errno;
1860                         goto exit;
1861                 }
1862         }
1863         MLX5_ASSERT(ns);
1864         /*
1865          * Sort list to probe devices in natural order for users convenience
1866          * (i.e. master first, then representors from lowest to highest ID).
1867          */
1868         qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
1869         /* Device specific configuration. */
1870         switch (pci_dev->id.device_id) {
1871         case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
1872         case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
1873         case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
1874         case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
1875         case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
1876         case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
1877         case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF:
1878                 dev_config_vf = 1;
1879                 break;
1880         default:
1881                 dev_config_vf = 0;
1882                 break;
1883         }
1884         for (i = 0; i != ns; ++i) {
1885                 uint32_t restore;
1886
1887                 /* Default configuration. */
1888                 memset(&dev_config, 0, sizeof(struct mlx5_dev_config));
1889                 dev_config.vf = dev_config_vf;
1890                 dev_config.mps = MLX5_ARG_UNSET;
1891                 dev_config.dbnc = MLX5_ARG_UNSET;
1892                 dev_config.rx_vec_en = 1;
1893                 dev_config.txq_inline_max = MLX5_ARG_UNSET;
1894                 dev_config.txq_inline_min = MLX5_ARG_UNSET;
1895                 dev_config.txq_inline_mpw = MLX5_ARG_UNSET;
1896                 dev_config.txqs_inline = MLX5_ARG_UNSET;
1897                 dev_config.vf_nl_en = 1;
1898                 dev_config.mr_ext_memseg_en = 1;
1899                 dev_config.mprq.max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN;
1900                 dev_config.mprq.min_rxqs_num = MLX5_MPRQ_MIN_RXQS;
1901                 dev_config.dv_esw_en = 1;
1902                 dev_config.dv_flow_en = 1;
1903                 dev_config.decap_en = 1;
1904                 dev_config.log_hp_size = MLX5_ARG_UNSET;
1905                 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
1906                                                  &list[i],
1907                                                  &dev_config);
1908                 if (!list[i].eth_dev) {
1909                         if (rte_errno != EBUSY && rte_errno != EEXIST)
1910                                 break;
1911                         /* Device is disabled or already spawned. Ignore it. */
1912                         continue;
1913                 }
1914                 restore = list[i].eth_dev->data->dev_flags;
1915                 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
1916                 /* Restore non-PCI flags cleared by the above call. */
1917                 list[i].eth_dev->data->dev_flags |= restore;
1918                 rte_eth_dev_probing_finish(list[i].eth_dev);
1919         }
1920         if (i != ns) {
1921                 DRV_LOG(ERR,
1922                         "probe of PCI device " PCI_PRI_FMT " aborted after"
1923                         " encountering an error: %s",
1924                         pci_dev->addr.domain, pci_dev->addr.bus,
1925                         pci_dev->addr.devid, pci_dev->addr.function,
1926                         strerror(rte_errno));
1927                 ret = -rte_errno;
1928                 /* Roll back. */
1929                 while (i--) {
1930                         if (!list[i].eth_dev)
1931                                 continue;
1932                         mlx5_dev_close(list[i].eth_dev);
1933                         /* mac_addrs must not be freed because in dev_private */
1934                         list[i].eth_dev->data->mac_addrs = NULL;
1935                         claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
1936                 }
1937                 /* Restore original error. */
1938                 rte_errno = -ret;
1939         } else {
1940                 ret = 0;
1941         }
1942 exit:
1943         /*
1944          * Do the routine cleanup:
1945          * - close opened Netlink sockets
1946          * - free allocated spawn data array
1947          * - free the Infiniband device list
1948          */
1949         if (nl_rdma >= 0)
1950                 close(nl_rdma);
1951         if (nl_route >= 0)
1952                 close(nl_route);
1953         if (list)
1954                 mlx5_free(list);
1955         MLX5_ASSERT(ibv_list);
1956         mlx5_glue->free_device_list(ibv_list);
1957         return ret;
1958 }
1959
1960 static int
1961 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
1962 {
1963         char *env;
1964         int value;
1965
1966         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
1967         /* Get environment variable to store. */
1968         env = getenv(MLX5_SHUT_UP_BF);
1969         value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
1970         if (config->dbnc == MLX5_ARG_UNSET)
1971                 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
1972         else
1973                 setenv(MLX5_SHUT_UP_BF,
1974                        config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
1975         return value;
1976 }
1977
1978 static void
1979 mlx5_restore_doorbell_mapping_env(int value)
1980 {
1981         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
1982         /* Restore the original environment variable state. */
1983         if (value == MLX5_ARG_UNSET)
1984                 unsetenv(MLX5_SHUT_UP_BF);
1985         else
1986                 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
1987 }
1988
1989 /**
1990  * Extract pdn of PD object using DV API.
1991  *
1992  * @param[in] pd
1993  *   Pointer to the verbs PD object.
1994  * @param[out] pdn
1995  *   Pointer to the PD object number variable.
1996  *
1997  * @return
1998  *   0 on success, error value otherwise.
1999  */
2000 int
2001 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
2002 {
2003 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
2004         struct mlx5dv_obj obj;
2005         struct mlx5dv_pd pd_info;
2006         int ret = 0;
2007
2008         obj.pd.in = pd;
2009         obj.pd.out = &pd_info;
2010         ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
2011         if (ret) {
2012                 DRV_LOG(DEBUG, "Fail to get PD object info");
2013                 return ret;
2014         }
2015         *pdn = pd_info.pdn;
2016         return 0;
2017 #else
2018         (void)pd;
2019         (void)pdn;
2020         return -ENOTSUP;
2021 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
2022 }
2023
2024 /**
2025  * Function API to open IB device.
2026  *
2027  * This function calls the Linux glue APIs to open a device.
2028  *
2029  * @param[in] spawn
2030  *   Pointer to the IB device attributes (name, port, etc).
2031  * @param[out] config
2032  *   Pointer to device configuration structure.
2033  * @param[out] sh
2034  *   Pointer to shared context structure.
2035  *
2036  * @return
2037  *   0 on success, a positive error value otherwise.
2038  */
2039 int
2040 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
2041                      const struct mlx5_dev_config *config,
2042                      struct mlx5_dev_ctx_shared *sh)
2043 {
2044         int dbmap_env;
2045         int err = 0;
2046
2047         sh->numa_node = spawn->pci_dev->device.numa_node;
2048         pthread_mutex_init(&sh->txpp.mutex, NULL);
2049         /*
2050          * Configure environment variable "MLX5_BF_SHUT_UP"
2051          * before the device creation. The rdma_core library
2052          * checks the variable at device creation and
2053          * stores the result internally.
2054          */
2055         dbmap_env = mlx5_config_doorbell_mapping_env(config);
2056         /* Try to open IB device with DV first, then usual Verbs. */
2057         errno = 0;
2058         sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
2059         if (sh->ctx) {
2060                 sh->devx = 1;
2061                 DRV_LOG(DEBUG, "DevX is supported");
2062                 /* The device is created, no need for environment. */
2063                 mlx5_restore_doorbell_mapping_env(dbmap_env);
2064         } else {
2065                 /* The environment variable is still configured. */
2066                 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
2067                 err = errno ? errno : ENODEV;
2068                 /*
2069                  * The environment variable is not needed anymore,
2070                  * all device creation attempts are completed.
2071                  */
2072                 mlx5_restore_doorbell_mapping_env(dbmap_env);
2073                 if (!sh->ctx)
2074                         return err;
2075                 DRV_LOG(DEBUG, "DevX is NOT supported");
2076                 err = 0;
2077         }
2078         return err;
2079 }
2080
2081 /**
2082  * Install shared asynchronous device events handler.
2083  * This function is implemented to support event sharing
2084  * between multiple ports of single IB device.
2085  *
2086  * @param sh
2087  *   Pointer to mlx5_dev_ctx_shared object.
2088  */
2089 void
2090 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
2091 {
2092         int ret;
2093         int flags;
2094
2095         sh->intr_handle.fd = -1;
2096         flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
2097         ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
2098                     F_SETFL, flags | O_NONBLOCK);
2099         if (ret) {
2100                 DRV_LOG(INFO, "failed to change file descriptor async event"
2101                         " queue");
2102         } else {
2103                 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
2104                 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
2105                 if (rte_intr_callback_register(&sh->intr_handle,
2106                                         mlx5_dev_interrupt_handler, sh)) {
2107                         DRV_LOG(INFO, "Fail to install the shared interrupt.");
2108                         sh->intr_handle.fd = -1;
2109                 }
2110         }
2111         if (sh->devx) {
2112 #ifdef HAVE_IBV_DEVX_ASYNC
2113                 sh->intr_handle_devx.fd = -1;
2114                 sh->devx_comp =
2115                         (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
2116                 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2117                 if (!devx_comp) {
2118                         DRV_LOG(INFO, "failed to allocate devx_comp.");
2119                         return;
2120                 }
2121                 flags = fcntl(devx_comp->fd, F_GETFL);
2122                 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2123                 if (ret) {
2124                         DRV_LOG(INFO, "failed to change file descriptor"
2125                                 " devx comp");
2126                         return;
2127                 }
2128                 sh->intr_handle_devx.fd = devx_comp->fd;
2129                 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
2130                 if (rte_intr_callback_register(&sh->intr_handle_devx,
2131                                         mlx5_dev_interrupt_handler_devx, sh)) {
2132                         DRV_LOG(INFO, "Fail to install the devx shared"
2133                                 " interrupt.");
2134                         sh->intr_handle_devx.fd = -1;
2135                 }
2136 #endif /* HAVE_IBV_DEVX_ASYNC */
2137         }
2138 }
2139
2140 /**
2141  * Uninstall shared asynchronous device events handler.
2142  * This function is implemented to support event sharing
2143  * between multiple ports of single IB device.
2144  *
2145  * @param dev
2146  *   Pointer to mlx5_dev_ctx_shared object.
2147  */
2148 void
2149 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
2150 {
2151         if (sh->intr_handle.fd >= 0)
2152                 mlx5_intr_callback_unregister(&sh->intr_handle,
2153                                               mlx5_dev_interrupt_handler, sh);
2154 #ifdef HAVE_IBV_DEVX_ASYNC
2155         if (sh->intr_handle_devx.fd >= 0)
2156                 rte_intr_callback_unregister(&sh->intr_handle_devx,
2157                                   mlx5_dev_interrupt_handler_devx, sh);
2158         if (sh->devx_comp)
2159                 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
2160 #endif
2161 }
2162
2163 /**
2164  * Read statistics by a named counter.
2165  *
2166  * @param[in] priv
2167  *   Pointer to the private device data structure.
2168  * @param[in] ctr_name
2169  *   Pointer to the name of the statistic counter to read
2170  * @param[out] stat
2171  *   Pointer to read statistic value.
2172  * @return
2173  *   0 on success and stat is valud, 1 if failed to read the value
2174  *   rte_errno is set.
2175  *
2176  */
2177 int
2178 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2179                       uint64_t *stat)
2180 {
2181         int fd;
2182
2183         if (priv->sh) {
2184                 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2185                       priv->sh->ibdev_path,
2186                       priv->dev_port,
2187                       ctr_name);
2188                 fd = open(path, O_RDONLY);
2189                 /*
2190                  * in switchdev the file location is not per port
2191                  * but rather in <ibdev_path>/hw_counters/<file_name>.
2192                  */
2193                 if (fd == -1) {
2194                         MKSTR(path1, "%s/hw_counters/%s",
2195                               priv->sh->ibdev_path,
2196                               ctr_name);
2197                         fd = open(path1, O_RDONLY);
2198                 }
2199                 if (fd != -1) {
2200                         char buf[21] = {'\0'};
2201                         ssize_t n = read(fd, buf, sizeof(buf));
2202
2203                         close(fd);
2204                         if (n != -1) {
2205                                 *stat = strtoull(buf, NULL, 10);
2206                                 return 0;
2207                         }
2208                 }
2209         }
2210         *stat = 0;
2211         return 1;
2212 }
2213
2214 /**
2215  * Set the reg_mr and dereg_mr call backs
2216  *
2217  * @param reg_mr_cb[out]
2218  *   Pointer to reg_mr func
2219  * @param dereg_mr_cb[out]
2220  *   Pointer to dereg_mr func
2221  *
2222  */
2223 void
2224 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
2225                       mlx5_dereg_mr_t *dereg_mr_cb)
2226 {
2227         *reg_mr_cb = mlx5_verbs_ops.reg_mr;
2228         *dereg_mr_cb = mlx5_verbs_ops.dereg_mr;
2229 }
2230
2231 /**
2232  * Remove a MAC address from device
2233  *
2234  * @param dev
2235  *   Pointer to Ethernet device structure.
2236  * @param index
2237  *   MAC address index.
2238  */
2239 void
2240 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
2241 {
2242         struct mlx5_priv *priv = dev->data->dev_private;
2243         const int vf = priv->config.vf;
2244
2245         if (vf)
2246                 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
2247                                         mlx5_ifindex(dev), priv->mac_own,
2248                                         &dev->data->mac_addrs[index], index);
2249 }
2250
2251 /**
2252  * Adds a MAC address to the device
2253  *
2254  * @param dev
2255  *   Pointer to Ethernet device structure.
2256  * @param mac_addr
2257  *   MAC address to register.
2258  * @param index
2259  *   MAC address index.
2260  *
2261  * @return
2262  *   0 on success, a negative errno value otherwise
2263  */
2264 int
2265 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
2266                      uint32_t index)
2267 {
2268         struct mlx5_priv *priv = dev->data->dev_private;
2269         const int vf = priv->config.vf;
2270         int ret = 0;
2271
2272         if (vf)
2273                 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
2274                                            mlx5_ifindex(dev), priv->mac_own,
2275                                            mac, index);
2276         return ret;
2277 }
2278
2279 /**
2280  * Modify a VF MAC address
2281  *
2282  * @param priv
2283  *   Pointer to device private data.
2284  * @param mac_addr
2285  *   MAC address to modify into.
2286  * @param iface_idx
2287  *   Net device interface index
2288  * @param vf_index
2289  *   VF index
2290  *
2291  * @return
2292  *   0 on success, a negative errno value otherwise
2293  */
2294 int
2295 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
2296                            unsigned int iface_idx,
2297                            struct rte_ether_addr *mac_addr,
2298                            int vf_index)
2299 {
2300         return mlx5_nl_vf_mac_addr_modify
2301                 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
2302 }
2303
2304 /**
2305  * Set device promiscuous mode
2306  *
2307  * @param dev
2308  *   Pointer to Ethernet device structure.
2309  * @param enable
2310  *   0 - promiscuous is disabled, otherwise - enabled
2311  *
2312  * @return
2313  *   0 on success, a negative error value otherwise
2314  */
2315 int
2316 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
2317 {
2318         struct mlx5_priv *priv = dev->data->dev_private;
2319
2320         return mlx5_nl_promisc(priv->nl_socket_route,
2321                                mlx5_ifindex(dev), !!enable);
2322 }
2323
2324 /**
2325  * Set device promiscuous mode
2326  *
2327  * @param dev
2328  *   Pointer to Ethernet device structure.
2329  * @param enable
2330  *   0 - all multicase is disabled, otherwise - enabled
2331  *
2332  * @return
2333  *   0 on success, a negative error value otherwise
2334  */
2335 int
2336 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
2337 {
2338         struct mlx5_priv *priv = dev->data->dev_private;
2339
2340         return mlx5_nl_allmulti(priv->nl_socket_route,
2341                                 mlx5_ifindex(dev), !!enable);
2342 }
2343
2344 /**
2345  * Flush device MAC addresses
2346  *
2347  * @param dev
2348  *   Pointer to Ethernet device structure.
2349  *
2350  */
2351 void
2352 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev)
2353 {
2354         struct mlx5_priv *priv = dev->data->dev_private;
2355
2356         mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
2357                                dev->data->mac_addrs,
2358                                MLX5_MAX_MAC_ADDRESSES, priv->mac_own);
2359 }
2360
2361 const struct eth_dev_ops mlx5_os_dev_ops = {
2362         .dev_configure = mlx5_dev_configure,
2363         .dev_start = mlx5_dev_start,
2364         .dev_stop = mlx5_dev_stop,
2365         .dev_set_link_down = mlx5_set_link_down,
2366         .dev_set_link_up = mlx5_set_link_up,
2367         .dev_close = mlx5_dev_close,
2368         .promiscuous_enable = mlx5_promiscuous_enable,
2369         .promiscuous_disable = mlx5_promiscuous_disable,
2370         .allmulticast_enable = mlx5_allmulticast_enable,
2371         .allmulticast_disable = mlx5_allmulticast_disable,
2372         .link_update = mlx5_link_update,
2373         .stats_get = mlx5_stats_get,
2374         .stats_reset = mlx5_stats_reset,
2375         .xstats_get = mlx5_xstats_get,
2376         .xstats_reset = mlx5_xstats_reset,
2377         .xstats_get_names = mlx5_xstats_get_names,
2378         .fw_version_get = mlx5_fw_version_get,
2379         .dev_infos_get = mlx5_dev_infos_get,
2380         .read_clock = mlx5_txpp_read_clock,
2381         .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2382         .vlan_filter_set = mlx5_vlan_filter_set,
2383         .rx_queue_setup = mlx5_rx_queue_setup,
2384         .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2385         .tx_queue_setup = mlx5_tx_queue_setup,
2386         .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2387         .rx_queue_release = mlx5_rx_queue_release,
2388         .tx_queue_release = mlx5_tx_queue_release,
2389         .rx_queue_start = mlx5_rx_queue_start,
2390         .rx_queue_stop = mlx5_rx_queue_stop,
2391         .tx_queue_start = mlx5_tx_queue_start,
2392         .tx_queue_stop = mlx5_tx_queue_stop,
2393         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2394         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2395         .mac_addr_remove = mlx5_mac_addr_remove,
2396         .mac_addr_add = mlx5_mac_addr_add,
2397         .mac_addr_set = mlx5_mac_addr_set,
2398         .set_mc_addr_list = mlx5_set_mc_addr_list,
2399         .mtu_set = mlx5_dev_set_mtu,
2400         .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2401         .vlan_offload_set = mlx5_vlan_offload_set,
2402         .reta_update = mlx5_dev_rss_reta_update,
2403         .reta_query = mlx5_dev_rss_reta_query,
2404         .rss_hash_update = mlx5_rss_hash_update,
2405         .rss_hash_conf_get = mlx5_rss_hash_conf_get,
2406         .filter_ctrl = mlx5_dev_filter_ctrl,
2407         .rx_descriptor_status = mlx5_rx_descriptor_status,
2408         .tx_descriptor_status = mlx5_tx_descriptor_status,
2409         .rxq_info_get = mlx5_rxq_info_get,
2410         .txq_info_get = mlx5_txq_info_get,
2411         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2412         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2413         .rx_queue_count = mlx5_rx_queue_count,
2414         .rx_queue_intr_enable = mlx5_rx_intr_enable,
2415         .rx_queue_intr_disable = mlx5_rx_intr_disable,
2416         .is_removed = mlx5_is_removed,
2417         .udp_tunnel_port_add  = mlx5_udp_tunnel_port_add,
2418         .get_module_info = mlx5_get_module_info,
2419         .get_module_eeprom = mlx5_get_module_eeprom,
2420         .hairpin_cap_get = mlx5_hairpin_cap_get,
2421         .mtr_ops_get = mlx5_flow_meter_ops_get,
2422 };
2423
2424 /* Available operations from secondary process. */
2425 const struct eth_dev_ops mlx5_os_dev_sec_ops = {
2426         .stats_get = mlx5_stats_get,
2427         .stats_reset = mlx5_stats_reset,
2428         .xstats_get = mlx5_xstats_get,
2429         .xstats_reset = mlx5_xstats_reset,
2430         .xstats_get_names = mlx5_xstats_get_names,
2431         .fw_version_get = mlx5_fw_version_get,
2432         .dev_infos_get = mlx5_dev_infos_get,
2433         .read_clock = mlx5_txpp_read_clock,
2434         .rx_queue_start = mlx5_rx_queue_start,
2435         .rx_queue_stop = mlx5_rx_queue_stop,
2436         .tx_queue_start = mlx5_tx_queue_start,
2437         .tx_queue_stop = mlx5_tx_queue_stop,
2438         .rx_descriptor_status = mlx5_rx_descriptor_status,
2439         .tx_descriptor_status = mlx5_tx_descriptor_status,
2440         .rxq_info_get = mlx5_rxq_info_get,
2441         .txq_info_get = mlx5_txq_info_get,
2442         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2443         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2444         .get_module_info = mlx5_get_module_info,
2445         .get_module_eeprom = mlx5_get_module_eeprom,
2446 };
2447
2448 /* Available operations in flow isolated mode. */
2449 const struct eth_dev_ops mlx5_os_dev_ops_isolate = {
2450         .dev_configure = mlx5_dev_configure,
2451         .dev_start = mlx5_dev_start,
2452         .dev_stop = mlx5_dev_stop,
2453         .dev_set_link_down = mlx5_set_link_down,
2454         .dev_set_link_up = mlx5_set_link_up,
2455         .dev_close = mlx5_dev_close,
2456         .promiscuous_enable = mlx5_promiscuous_enable,
2457         .promiscuous_disable = mlx5_promiscuous_disable,
2458         .allmulticast_enable = mlx5_allmulticast_enable,
2459         .allmulticast_disable = mlx5_allmulticast_disable,
2460         .link_update = mlx5_link_update,
2461         .stats_get = mlx5_stats_get,
2462         .stats_reset = mlx5_stats_reset,
2463         .xstats_get = mlx5_xstats_get,
2464         .xstats_reset = mlx5_xstats_reset,
2465         .xstats_get_names = mlx5_xstats_get_names,
2466         .fw_version_get = mlx5_fw_version_get,
2467         .dev_infos_get = mlx5_dev_infos_get,
2468         .read_clock = mlx5_txpp_read_clock,
2469         .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2470         .vlan_filter_set = mlx5_vlan_filter_set,
2471         .rx_queue_setup = mlx5_rx_queue_setup,
2472         .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2473         .tx_queue_setup = mlx5_tx_queue_setup,
2474         .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2475         .rx_queue_release = mlx5_rx_queue_release,
2476         .tx_queue_release = mlx5_tx_queue_release,
2477         .rx_queue_start = mlx5_rx_queue_start,
2478         .rx_queue_stop = mlx5_rx_queue_stop,
2479         .tx_queue_start = mlx5_tx_queue_start,
2480         .tx_queue_stop = mlx5_tx_queue_stop,
2481         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2482         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2483         .mac_addr_remove = mlx5_mac_addr_remove,
2484         .mac_addr_add = mlx5_mac_addr_add,
2485         .mac_addr_set = mlx5_mac_addr_set,
2486         .set_mc_addr_list = mlx5_set_mc_addr_list,
2487         .mtu_set = mlx5_dev_set_mtu,
2488         .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2489         .vlan_offload_set = mlx5_vlan_offload_set,
2490         .filter_ctrl = mlx5_dev_filter_ctrl,
2491         .rx_descriptor_status = mlx5_rx_descriptor_status,
2492         .tx_descriptor_status = mlx5_tx_descriptor_status,
2493         .rxq_info_get = mlx5_rxq_info_get,
2494         .txq_info_get = mlx5_txq_info_get,
2495         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2496         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2497         .rx_queue_intr_enable = mlx5_rx_intr_enable,
2498         .rx_queue_intr_disable = mlx5_rx_intr_disable,
2499         .is_removed = mlx5_is_removed,
2500         .get_module_info = mlx5_get_module_info,
2501         .get_module_eeprom = mlx5_get_module_eeprom,
2502         .hairpin_cap_get = mlx5_hairpin_cap_get,
2503         .mtr_ops_get = mlx5_flow_meter_ops_get,
2504 };