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 <sys/mman.h>
  14 #include <linux/rtnetlink.h>
  15 #include <linux/sockios.h>
  16 #include <linux/ethtool.h>
  17 #include <fcntl.h>
  18
  19 /* Verbs header. */
  20 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
  21 #ifdef PEDANTIC
  22 #pragma GCC diagnostic ignored "-Wpedantic"
  23 #endif
  24 #include <infiniband/verbs.h>
  25 #ifdef PEDANTIC
  26 #pragma GCC diagnostic error "-Wpedantic"
  27 #endif
  28
  29 #include <rte_malloc.h>
  30 #include <rte_ethdev_driver.h>
  31 #include <rte_ethdev_pci.h>
  32 #include <rte_pci.h>
  33 #include <rte_bus_pci.h>
  34 #include <rte_common.h>
  35 #include <rte_kvargs.h>
  36 #include <rte_rwlock.h>
  37 #include <rte_spinlock.h>
  38 #include <rte_string_fns.h>
  39 #include <rte_alarm.h>
  40
  41 #include <mlx5_glue.h>
  42 #include <mlx5_devx_cmds.h>
  43 #include <mlx5_common.h>
  44 #include <mlx5_common_mp.h>
  45 #include <mlx5_common_mr.h>
  46
  47 #include "mlx5_defs.h"
  48 #include "mlx5.h"
  49 #include "mlx5_utils.h"
  50 #include "mlx5_rxtx.h"
  51 #include "mlx5_autoconf.h"
  52 #include "mlx5_mr.h"
  53 #include "mlx5_flow.h"
  54 #include "rte_pmd_mlx5.h"
  55
  56 #define MLX5_TAGS_HLIST_ARRAY_SIZE 8192
  57
  58 #ifndef HAVE_IBV_MLX5_MOD_MPW
  59 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
  60 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
  61 #endif
  62
  63 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
  64 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
  65 #endif
  66
  67 /**
  68  * Get device name. Given an ibv_device pointer - return a
  69  * pointer to the corresponding device name.
  70  *
  71  * @param[in] dev
  72  *   Pointer to ibv device.
  73  *
  74  * @return
  75  *   Pointer to device name if dev is valid, NULL otherwise.
  76  */
  77 const char *
  78 mlx5_os_get_dev_device_name(void *dev)
  79 {
  80         if (!dev)
  81                 return NULL;
  82         return ((struct ibv_device *)dev)->name;
  83 }
  84
  85 /**
  86  * Get ibv device name. Given an ibv_context pointer - return a
  87  * pointer to the corresponding device name.
  88  *
  89  * @param[in] ctx
  90  *   Pointer to ibv context.
  91  *
  92  * @return
  93  *   Pointer to device name if ctx is valid, NULL otherwise.
  94  */
  95 const char *
  96 mlx5_os_get_ctx_device_name(void *ctx)
  97 {
  98         if (!ctx)
  99                 return NULL;
 100         return ((struct ibv_context *)ctx)->device->name;
 101 }
 102
 103 /**
 104  * Get ibv device path name. Given an ibv_context pointer - return a
 105  * pointer to the corresponding device path name.
 106  *
 107  * @param[in] ctx
 108  *   Pointer to ibv context.
 109  *
 110  * @return
 111  *   Pointer to device path name if ctx is valid, NULL otherwise.
 112  */
 113 const char *
 114 mlx5_os_get_ctx_device_path(void *ctx)
 115 {
 116         if (!ctx)
 117                 return NULL;
 118
 119         return ((struct ibv_context *)ctx)->device->ibdev_path;
 120 }
 121
 122 /**
 123  * Get umem id. Given a pointer to umem object of type
 124  * 'struct mlx5dv_devx_umem *' - return its id.
 125  *
 126  * @param[in] umem
 127  *   Pointer to umem object.
 128  *
 129  * @return
 130  *   The umem id if umem is valid, 0 otherwise.
 131  */
 132 uint32_t
 133 mlx5_os_get_umem_id(void *umem)
 134 {
 135         if (!umem)
 136                 return 0;
 137         return ((struct mlx5dv_devx_umem *)umem)->umem_id;
 138 }
 139
 140 /**
 141  * Get mlx5 device attributes. The glue function query_device_ex() is called
 142  * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
 143  * device attributes from the glue out parameter.
 144  *
 145  * @param dev
 146  *   Pointer to ibv context.
 147  *
 148  * @param device_attr
 149  *   Pointer to mlx5 device attributes.
 150  *
 151  * @return
 152  *   0 on success, non zero error number otherwise
 153  */
 154 int
 155 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
 156 {
 157         int err;
 158         struct ibv_device_attr_ex attr_ex;
 159         memset(device_attr, 0, sizeof(*device_attr));
 160         err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
 161         if (err)
 162                 return err;
 163
 164         device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
 165         device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
 166         device_attr->max_sge = attr_ex.orig_attr.max_sge;
 167         device_attr->max_cq = attr_ex.orig_attr.max_cq;
 168         device_attr->max_qp = attr_ex.orig_attr.max_qp;
 169         device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
 170         device_attr->max_rwq_indirection_table_size =
 171                 attr_ex.rss_caps.max_rwq_indirection_table_size;
 172         device_attr->max_tso = attr_ex.tso_caps.max_tso;
 173         device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
 174
 175         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 176         err = mlx5_glue->dv_query_device(ctx, &dv_attr);
 177         if (err)
 178                 return err;
 179
 180         device_attr->flags = dv_attr.flags;
 181         device_attr->comp_mask = dv_attr.comp_mask;
 182 #ifdef HAVE_IBV_MLX5_MOD_SWP
 183         device_attr->sw_parsing_offloads =
 184                 dv_attr.sw_parsing_caps.sw_parsing_offloads;
 185 #endif
 186         device_attr->min_single_stride_log_num_of_bytes =
 187                 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
 188         device_attr->max_single_stride_log_num_of_bytes =
 189                 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
 190         device_attr->min_single_wqe_log_num_of_strides =
 191                 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
 192         device_attr->max_single_wqe_log_num_of_strides =
 193                 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
 194         device_attr->stride_supported_qpts =
 195                 dv_attr.striding_rq_caps.supported_qpts;
 196 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 197         device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
 198 #endif
 199
 200         return err;
 201 }
 202
 203 /**
 204  * Verbs callback to allocate a memory. This function should allocate the space
 205  * according to the size provided residing inside a huge page.
 206  * Please note that all allocation must respect the alignment from libmlx5
 207  * (i.e. currently sysconf(_SC_PAGESIZE)).
 208  *
 209  * @param[in] size
 210  *   The size in bytes of the memory to allocate.
 211  * @param[in] data
 212  *   A pointer to the callback data.
 213  *
 214  * @return
 215  *   Allocated buffer, NULL otherwise and rte_errno is set.
 216  */
 217 static void *
 218 mlx5_alloc_verbs_buf(size_t size, void *data)
 219 {
 220         struct mlx5_priv *priv = data;
 221         void *ret;
 222         size_t alignment = sysconf(_SC_PAGESIZE);
 223         unsigned int socket = SOCKET_ID_ANY;
 224
 225         if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) {
 226                 const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
 227
 228                 socket = ctrl->socket;
 229         } else if (priv->verbs_alloc_ctx.type ==
 230                    MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) {
 231                 const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
 232
 233                 socket = ctrl->socket;
 234         }
 235         MLX5_ASSERT(data != NULL);
 236         ret = rte_malloc_socket(__func__, size, alignment, socket);
 237         if (!ret && size)
 238                 rte_errno = ENOMEM;
 239         return ret;
 240 }
 241
 242 /**
 243  * Verbs callback to free a memory.
 244  *
 245  * @param[in] ptr
 246  *   A pointer to the memory to free.
 247  * @param[in] data
 248  *   A pointer to the callback data.
 249  */
 250 static void
 251 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
 252 {
 253         MLX5_ASSERT(data != NULL);
 254         rte_free(ptr);
 255 }
 256
 257 /**
 258  * Initialize DR related data within private structure.
 259  * Routine checks the reference counter and does actual
 260  * resources creation/initialization only if counter is zero.
 261  *
 262  * @param[in] priv
 263  *   Pointer to the private device data structure.
 264  *
 265  * @return
 266  *   Zero on success, positive error code otherwise.
 267  */
 268 static int
 269 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 270 {
 271         struct mlx5_dev_ctx_shared *sh = priv->sh;
 272         char s[MLX5_HLIST_NAMESIZE];
 273         int err = 0;
 274
 275         if (!sh->flow_tbls)
 276                 err = mlx5_alloc_table_hash_list(priv);
 277         else
 278                 DRV_LOG(DEBUG, "sh->flow_tbls[%p] already created, reuse\n",
 279                         (void *)sh->flow_tbls);
 280         if (err)
 281                 return err;
 282         /* Create tags hash list table. */
 283         snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
 284         sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE);
 285         if (!sh->tag_table) {
 286                 DRV_LOG(ERR, "tags with hash creation failed.\n");
 287                 err = ENOMEM;
 288                 goto error;
 289         }
 290 #ifdef HAVE_MLX5DV_DR
 291         void *domain;
 292
 293         if (sh->dv_refcnt) {
 294                 /* Shared DV/DR structures is already initialized. */
 295                 sh->dv_refcnt++;
 296                 priv->dr_shared = 1;
 297                 return 0;
 298         }
 299         /* Reference counter is zero, we should initialize structures. */
 300         domain = mlx5_glue->dr_create_domain(sh->ctx,
 301                                              MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
 302         if (!domain) {
 303                 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
 304                 err = errno;
 305                 goto error;
 306         }
 307         sh->rx_domain = domain;
 308         domain = mlx5_glue->dr_create_domain(sh->ctx,
 309                                              MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
 310         if (!domain) {
 311                 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
 312                 err = errno;
 313                 goto error;
 314         }
 315         pthread_mutex_init(&sh->dv_mutex, NULL);
 316         sh->tx_domain = domain;
 317 #ifdef HAVE_MLX5DV_DR_ESWITCH
 318         if (priv->config.dv_esw_en) {
 319                 domain  = mlx5_glue->dr_create_domain
 320                         (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
 321                 if (!domain) {
 322                         DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
 323                         err = errno;
 324                         goto error;
 325                 }
 326                 sh->fdb_domain = domain;
 327                 sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
 328         }
 329 #endif
 330         if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
 331                 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
 332                 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
 333                 if (sh->fdb_domain)
 334                         mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
 335         }
 336         sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
 337 #endif /* HAVE_MLX5DV_DR */
 338         sh->dv_refcnt++;
 339         priv->dr_shared = 1;
 340         return 0;
 341 error:
 342         /* Rollback the created objects. */
 343         if (sh->rx_domain) {
 344                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 345                 sh->rx_domain = NULL;
 346         }
 347         if (sh->tx_domain) {
 348                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 349                 sh->tx_domain = NULL;
 350         }
 351         if (sh->fdb_domain) {
 352                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 353                 sh->fdb_domain = NULL;
 354         }
 355         if (sh->esw_drop_action) {
 356                 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
 357                 sh->esw_drop_action = NULL;
 358         }
 359         if (sh->pop_vlan_action) {
 360                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 361                 sh->pop_vlan_action = NULL;
 362         }
 363         if (sh->tag_table) {
 364                 /* tags should be destroyed with flow before. */
 365                 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
 366                 sh->tag_table = NULL;
 367         }
 368         mlx5_free_table_hash_list(priv);
 369         return err;
 370 }
 371
 372 /**
 373  * Destroy DR related data within private structure.
 374  *
 375  * @param[in] priv
 376  *   Pointer to the private device data structure.
 377  */
 378 void
 379 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
 380 {
 381         struct mlx5_dev_ctx_shared *sh;
 382
 383         if (!priv->dr_shared)
 384                 return;
 385         priv->dr_shared = 0;
 386         sh = priv->sh;
 387         MLX5_ASSERT(sh);
 388 #ifdef HAVE_MLX5DV_DR
 389         MLX5_ASSERT(sh->dv_refcnt);
 390         if (sh->dv_refcnt && --sh->dv_refcnt)
 391                 return;
 392         if (sh->rx_domain) {
 393                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 394                 sh->rx_domain = NULL;
 395         }
 396         if (sh->tx_domain) {
 397                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 398                 sh->tx_domain = NULL;
 399         }
 400 #ifdef HAVE_MLX5DV_DR_ESWITCH
 401         if (sh->fdb_domain) {
 402                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 403                 sh->fdb_domain = NULL;
 404         }
 405         if (sh->esw_drop_action) {
 406                 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
 407                 sh->esw_drop_action = NULL;
 408         }
 409 #endif
 410         if (sh->pop_vlan_action) {
 411                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 412                 sh->pop_vlan_action = NULL;
 413         }
 414         pthread_mutex_destroy(&sh->dv_mutex);
 415 #endif /* HAVE_MLX5DV_DR */
 416         if (sh->tag_table) {
 417                 /* tags should be destroyed with flow before. */
 418                 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
 419                 sh->tag_table = NULL;
 420         }
 421         mlx5_free_table_hash_list(priv);
 422 }
 423
 424 /**
 425  * Spawn an Ethernet device from Verbs information.
 426  *
 427  * @param dpdk_dev
 428  *   Backing DPDK device.
 429  * @param spawn
 430  *   Verbs device parameters (name, port, switch_info) to spawn.
 431  * @param config
 432  *   Device configuration parameters.
 433  *
 434  * @return
 435  *   A valid Ethernet device object on success, NULL otherwise and rte_errno
 436  *   is set. The following errors are defined:
 437  *
 438  *   EBUSY: device is not supposed to be spawned.
 439  *   EEXIST: device is already spawned
 440  */
 441 static struct rte_eth_dev *
 442 mlx5_dev_spawn(struct rte_device *dpdk_dev,
 443                struct mlx5_dev_spawn_data *spawn,
 444                struct mlx5_dev_config config)
 445 {
 446         const struct mlx5_switch_info *switch_info = &spawn->info;
 447         struct mlx5_dev_ctx_shared *sh = NULL;
 448         struct ibv_port_attr port_attr;
 449         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 450         struct rte_eth_dev *eth_dev = NULL;
 451         struct mlx5_priv *priv = NULL;
 452         int err = 0;
 453         unsigned int hw_padding = 0;
 454         unsigned int mps;
 455         unsigned int cqe_comp;
 456         unsigned int cqe_pad = 0;
 457         unsigned int tunnel_en = 0;
 458         unsigned int mpls_en = 0;
 459         unsigned int swp = 0;
 460         unsigned int mprq = 0;
 461         unsigned int mprq_min_stride_size_n = 0;
 462         unsigned int mprq_max_stride_size_n = 0;
 463         unsigned int mprq_min_stride_num_n = 0;
 464         unsigned int mprq_max_stride_num_n = 0;
 465         struct rte_ether_addr mac;
 466         char name[RTE_ETH_NAME_MAX_LEN];
 467         int own_domain_id = 0;
 468         uint16_t port_id;
 469         unsigned int i;
 470 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
 471         struct mlx5dv_devx_port devx_port = { .comp_mask = 0 };
 472 #endif
 473
 474         /* Determine if this port representor is supposed to be spawned. */
 475         if (switch_info->representor && dpdk_dev->devargs) {
 476                 struct rte_eth_devargs eth_da;
 477
 478                 err = rte_eth_devargs_parse(dpdk_dev->devargs->args, &eth_da);
 479                 if (err) {
 480                         rte_errno = -err;
 481                         DRV_LOG(ERR, "failed to process device arguments: %s",
 482                                 strerror(rte_errno));
 483                         return NULL;
 484                 }
 485                 for (i = 0; i < eth_da.nb_representor_ports; ++i)
 486                         if (eth_da.representor_ports[i] ==
 487                             (uint16_t)switch_info->port_name)
 488                                 break;
 489                 if (i == eth_da.nb_representor_ports) {
 490                         rte_errno = EBUSY;
 491                         return NULL;
 492                 }
 493         }
 494         /* Build device name. */
 495         if (spawn->pf_bond <  0) {
 496                 /* Single device. */
 497                 if (!switch_info->representor)
 498                         strlcpy(name, dpdk_dev->name, sizeof(name));
 499                 else
 500                         snprintf(name, sizeof(name), "%s_representor_%u",
 501                                  dpdk_dev->name, switch_info->port_name);
 502         } else {
 503                 /* Bonding device. */
 504                 if (!switch_info->representor)
 505                         snprintf(name, sizeof(name), "%s_%s",
 506                                  dpdk_dev->name,
 507                                  mlx5_os_get_dev_device_name(spawn->phys_dev));
 508                 else
 509                         snprintf(name, sizeof(name), "%s_%s_representor_%u",
 510                                  dpdk_dev->name,
 511                                  mlx5_os_get_dev_device_name(spawn->phys_dev),
 512                                  switch_info->port_name);
 513         }
 514         /* check if the device is already spawned */
 515         if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
 516                 rte_errno = EEXIST;
 517                 return NULL;
 518         }
 519         DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
 520         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
 521                 struct mlx5_mp_id mp_id;
 522
 523                 eth_dev = rte_eth_dev_attach_secondary(name);
 524                 if (eth_dev == NULL) {
 525                         DRV_LOG(ERR, "can not attach rte ethdev");
 526                         rte_errno = ENOMEM;
 527                         return NULL;
 528                 }
 529                 eth_dev->device = dpdk_dev;
 530                 eth_dev->dev_ops = &mlx5_os_dev_sec_ops;
 531                 err = mlx5_proc_priv_init(eth_dev);
 532                 if (err)
 533                         return NULL;
 534                 mp_id.port_id = eth_dev->data->port_id;
 535                 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 536                 /* Receive command fd from primary process */
 537                 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
 538                 if (err < 0)
 539                         goto err_secondary;
 540                 /* Remap UAR for Tx queues. */
 541                 err = mlx5_tx_uar_init_secondary(eth_dev, err);
 542                 if (err)
 543                         goto err_secondary;
 544                 /*
 545                  * Ethdev pointer is still required as input since
 546                  * the primary device is not accessible from the
 547                  * secondary process.
 548                  */
 549                 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
 550                 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
 551                 return eth_dev;
 552 err_secondary:
 553                 mlx5_dev_close(eth_dev);
 554                 return NULL;
 555         }
 556         /*
 557          * Some parameters ("tx_db_nc" in particularly) are needed in
 558          * advance to create dv/verbs device context. We proceed the
 559          * devargs here to get ones, and later proceed devargs again
 560          * to override some hardware settings.
 561          */
 562         err = mlx5_args(&config, dpdk_dev->devargs);
 563         if (err) {
 564                 err = rte_errno;
 565                 DRV_LOG(ERR, "failed to process device arguments: %s",
 566                         strerror(rte_errno));
 567                 goto error;
 568         }
 569         sh = mlx5_alloc_shared_dev_ctx(spawn, &config);
 570         if (!sh)
 571                 return NULL;
 572         config.devx = sh->devx;
 573 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
 574         config.dest_tir = 1;
 575 #endif
 576 #ifdef HAVE_IBV_MLX5_MOD_SWP
 577         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
 578 #endif
 579         /*
 580          * Multi-packet send is supported by ConnectX-4 Lx PF as well
 581          * as all ConnectX-5 devices.
 582          */
 583 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 584         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
 585 #endif
 586 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 587         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
 588 #endif
 589         mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
 590         if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
 591                 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
 592                         DRV_LOG(DEBUG, "enhanced MPW is supported");
 593                         mps = MLX5_MPW_ENHANCED;
 594                 } else {
 595                         DRV_LOG(DEBUG, "MPW is supported");
 596                         mps = MLX5_MPW;
 597                 }
 598         } else {
 599                 DRV_LOG(DEBUG, "MPW isn't supported");
 600                 mps = MLX5_MPW_DISABLED;
 601         }
 602 #ifdef HAVE_IBV_MLX5_MOD_SWP
 603         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
 604                 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
 605         DRV_LOG(DEBUG, "SWP support: %u", swp);
 606 #endif
 607         config.swp = !!swp;
 608 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 609         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
 610                 struct mlx5dv_striding_rq_caps mprq_caps =
 611                         dv_attr.striding_rq_caps;
 612
 613                 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
 614                         mprq_caps.min_single_stride_log_num_of_bytes);
 615                 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
 616                         mprq_caps.max_single_stride_log_num_of_bytes);
 617                 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
 618                         mprq_caps.min_single_wqe_log_num_of_strides);
 619                 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
 620                         mprq_caps.max_single_wqe_log_num_of_strides);
 621                 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
 622                         mprq_caps.supported_qpts);
 623                 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
 624                 mprq = 1;
 625                 mprq_min_stride_size_n =
 626                         mprq_caps.min_single_stride_log_num_of_bytes;
 627                 mprq_max_stride_size_n =
 628                         mprq_caps.max_single_stride_log_num_of_bytes;
 629                 mprq_min_stride_num_n =
 630                         mprq_caps.min_single_wqe_log_num_of_strides;
 631                 mprq_max_stride_num_n =
 632                         mprq_caps.max_single_wqe_log_num_of_strides;
 633         }
 634 #endif
 635         if (RTE_CACHE_LINE_SIZE == 128 &&
 636             !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP))
 637                 cqe_comp = 0;
 638         else
 639                 cqe_comp = 1;
 640         config.cqe_comp = cqe_comp;
 641 #ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD
 642         /* Whether device supports 128B Rx CQE padding. */
 643         cqe_pad = RTE_CACHE_LINE_SIZE == 128 &&
 644                   (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD);
 645 #endif
 646 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 647         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
 648                 tunnel_en = ((dv_attr.tunnel_offloads_caps &
 649                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
 650                              (dv_attr.tunnel_offloads_caps &
 651                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
 652                              (dv_attr.tunnel_offloads_caps &
 653                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
 654         }
 655         DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
 656                 tunnel_en ? "" : "not ");
 657 #else
 658         DRV_LOG(WARNING,
 659                 "tunnel offloading disabled due to old OFED/rdma-core version");
 660 #endif
 661         config.tunnel_en = tunnel_en;
 662 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
 663         mpls_en = ((dv_attr.tunnel_offloads_caps &
 664                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
 665                    (dv_attr.tunnel_offloads_caps &
 666                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
 667         DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
 668                 mpls_en ? "" : "not ");
 669 #else
 670         DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
 671                 " old OFED/rdma-core version or firmware configuration");
 672 #endif
 673         config.mpls_en = mpls_en;
 674         /* Check port status. */
 675         err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
 676         if (err) {
 677                 DRV_LOG(ERR, "port query failed: %s", strerror(err));
 678                 goto error;
 679         }
 680         if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
 681                 DRV_LOG(ERR, "port is not configured in Ethernet mode");
 682                 err = EINVAL;
 683                 goto error;
 684         }
 685         if (port_attr.state != IBV_PORT_ACTIVE)
 686                 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
 687                         mlx5_glue->port_state_str(port_attr.state),
 688                         port_attr.state);
 689         /* Allocate private eth device data. */
 690         priv = rte_zmalloc("ethdev private structure",
 691                            sizeof(*priv),
 692                            RTE_CACHE_LINE_SIZE);
 693         if (priv == NULL) {
 694                 DRV_LOG(ERR, "priv allocation failure");
 695                 err = ENOMEM;
 696                 goto error;
 697         }
 698         priv->sh = sh;
 699         priv->dev_port = spawn->phys_port;
 700         priv->pci_dev = spawn->pci_dev;
 701         priv->mtu = RTE_ETHER_MTU;
 702         priv->mp_id.port_id = port_id;
 703         strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 704 #ifndef RTE_ARCH_64
 705         /* Initialize UAR access locks for 32bit implementations. */
 706         rte_spinlock_init(&priv->uar_lock_cq);
 707         for (i = 0; i < MLX5_UAR_PAGE_NUM_MAX; i++)
 708                 rte_spinlock_init(&priv->uar_lock[i]);
 709 #endif
 710         /* Some internal functions rely on Netlink sockets, open them now. */
 711         priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
 712         priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
 713         priv->representor = !!switch_info->representor;
 714         priv->master = !!switch_info->master;
 715         priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
 716         priv->vport_meta_tag = 0;
 717         priv->vport_meta_mask = 0;
 718         priv->pf_bond = spawn->pf_bond;
 719 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
 720         /*
 721          * The DevX port query API is implemented. E-Switch may use
 722          * either vport or reg_c[0] metadata register to match on
 723          * vport index. The engaged part of metadata register is
 724          * defined by mask.
 725          */
 726         if (switch_info->representor || switch_info->master) {
 727                 devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT |
 728                                       MLX5DV_DEVX_PORT_MATCH_REG_C_0;
 729                 err = mlx5_glue->devx_port_query(sh->ctx, spawn->phys_port,
 730                                                  &devx_port);
 731                 if (err) {
 732                         DRV_LOG(WARNING,
 733                                 "can't query devx port %d on device %s",
 734                                 spawn->phys_port,
 735                                 mlx5_os_get_dev_device_name(spawn->phys_dev));
 736                         devx_port.comp_mask = 0;
 737                 }
 738         }
 739         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) {
 740                 priv->vport_meta_tag = devx_port.reg_c_0.value;
 741                 priv->vport_meta_mask = devx_port.reg_c_0.mask;
 742                 if (!priv->vport_meta_mask) {
 743                         DRV_LOG(ERR, "vport zero mask for port %d"
 744                                      " on bonding device %s",
 745                                      spawn->phys_port,
 746                                      mlx5_os_get_dev_device_name
 747                                                         (spawn->phys_dev));
 748                         err = ENOTSUP;
 749                         goto error;
 750                 }
 751                 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
 752                         DRV_LOG(ERR, "invalid vport tag for port %d"
 753                                      " on bonding device %s",
 754                                      spawn->phys_port,
 755                                      mlx5_os_get_dev_device_name
 756                                                         (spawn->phys_dev));
 757                         err = ENOTSUP;
 758                         goto error;
 759                 }
 760         }
 761         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) {
 762                 priv->vport_id = devx_port.vport_num;
 763         } else if (spawn->pf_bond >= 0) {
 764                 DRV_LOG(ERR, "can't deduce vport index for port %d"
 765                              " on bonding device %s",
 766                              spawn->phys_port,
 767                              mlx5_os_get_dev_device_name(spawn->phys_dev));
 768                 err = ENOTSUP;
 769                 goto error;
 770         } else {
 771                 /* Suppose vport index in compatible way. */
 772                 priv->vport_id = switch_info->representor ?
 773                                  switch_info->port_name + 1 : -1;
 774         }
 775 #else
 776         /*
 777          * Kernel/rdma_core support single E-Switch per PF configurations
 778          * only and vport_id field contains the vport index for
 779          * associated VF, which is deduced from representor port name.
 780          * For example, let's have the IB device port 10, it has
 781          * attached network device eth0, which has port name attribute
 782          * pf0vf2, we can deduce the VF number as 2, and set vport index
 783          * as 3 (2+1). This assigning schema should be changed if the
 784          * multiple E-Switch instances per PF configurations or/and PCI
 785          * subfunctions are added.
 786          */
 787         priv->vport_id = switch_info->representor ?
 788                          switch_info->port_name + 1 : -1;
 789 #endif
 790         /* representor_id field keeps the unmodified VF index. */
 791         priv->representor_id = switch_info->representor ?
 792                                switch_info->port_name : -1;
 793         /*
 794          * Look for sibling devices in order to reuse their switch domain
 795          * if any, otherwise allocate one.
 796          */
 797         MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
 798                 const struct mlx5_priv *opriv =
 799                         rte_eth_devices[port_id].data->dev_private;
 800
 801                 if (!opriv ||
 802                     opriv->sh != priv->sh ||
 803                         opriv->domain_id ==
 804                         RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
 805                         continue;
 806                 priv->domain_id = opriv->domain_id;
 807                 break;
 808         }
 809         if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
 810                 err = rte_eth_switch_domain_alloc(&priv->domain_id);
 811                 if (err) {
 812                         err = rte_errno;
 813                         DRV_LOG(ERR, "unable to allocate switch domain: %s",
 814                                 strerror(rte_errno));
 815                         goto error;
 816                 }
 817                 own_domain_id = 1;
 818         }
 819         /* Override some values set by hardware configuration. */
 820         mlx5_args(&config, dpdk_dev->devargs);
 821         err = mlx5_dev_check_sibling_config(priv, &config);
 822         if (err)
 823                 goto error;
 824         config.hw_csum = !!(sh->device_attr.device_cap_flags_ex &
 825                             IBV_DEVICE_RAW_IP_CSUM);
 826         DRV_LOG(DEBUG, "checksum offloading is %ssupported",
 827                 (config.hw_csum ? "" : "not "));
 828 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
 829         !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 830         DRV_LOG(DEBUG, "counters are not supported");
 831 #endif
 832 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
 833         if (config.dv_flow_en) {
 834                 DRV_LOG(WARNING, "DV flow is not supported");
 835                 config.dv_flow_en = 0;
 836         }
 837 #endif
 838         config.ind_table_max_size =
 839                 sh->device_attr.max_rwq_indirection_table_size;
 840         /*
 841          * Remove this check once DPDK supports larger/variable
 842          * indirection tables.
 843          */
 844         if (config.ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
 845                 config.ind_table_max_size = ETH_RSS_RETA_SIZE_512;
 846         DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
 847                 config.ind_table_max_size);
 848         config.hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
 849                                   IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
 850         DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
 851                 (config.hw_vlan_strip ? "" : "not "));
 852         config.hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
 853                                  IBV_RAW_PACKET_CAP_SCATTER_FCS);
 854         DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
 855                 (config.hw_fcs_strip ? "" : "not "));
 856 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
 857         hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
 858 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
 859         hw_padding = !!(sh->device_attr.device_cap_flags_ex &
 860                         IBV_DEVICE_PCI_WRITE_END_PADDING);
 861 #endif
 862         if (config.hw_padding && !hw_padding) {
 863                 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
 864                 config.hw_padding = 0;
 865         } else if (config.hw_padding) {
 866                 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
 867         }
 868         config.tso = (sh->device_attr.max_tso > 0 &&
 869                       (sh->device_attr.tso_supported_qpts &
 870                        (1 << IBV_QPT_RAW_PACKET)));
 871         if (config.tso)
 872                 config.tso_max_payload_sz = sh->device_attr.max_tso;
 873         /*
 874          * MPW is disabled by default, while the Enhanced MPW is enabled
 875          * by default.
 876          */
 877         if (config.mps == MLX5_ARG_UNSET)
 878                 config.mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
 879                                                           MLX5_MPW_DISABLED;
 880         else
 881                 config.mps = config.mps ? mps : MLX5_MPW_DISABLED;
 882         DRV_LOG(INFO, "%sMPS is %s",
 883                 config.mps == MLX5_MPW_ENHANCED ? "enhanced " :
 884                 config.mps == MLX5_MPW ? "legacy " : "",
 885                 config.mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
 886         if (config.cqe_comp && !cqe_comp) {
 887                 DRV_LOG(WARNING, "Rx CQE compression isn't supported");
 888                 config.cqe_comp = 0;
 889         }
 890         if (config.cqe_pad && !cqe_pad) {
 891                 DRV_LOG(WARNING, "Rx CQE padding isn't supported");
 892                 config.cqe_pad = 0;
 893         } else if (config.cqe_pad) {
 894                 DRV_LOG(INFO, "Rx CQE padding is enabled");
 895         }
 896         if (config.devx) {
 897                 priv->counter_fallback = 0;
 898                 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config.hca_attr);
 899                 if (err) {
 900                         err = -err;
 901                         goto error;
 902                 }
 903                 if (!config.hca_attr.flow_counters_dump)
 904                         priv->counter_fallback = 1;
 905 #ifndef HAVE_IBV_DEVX_ASYNC
 906                 priv->counter_fallback = 1;
 907 #endif
 908                 if (priv->counter_fallback)
 909                         DRV_LOG(INFO, "Use fall-back DV counter management");
 910                 /* Check for LRO support. */
 911                 if (config.dest_tir && config.hca_attr.lro_cap &&
 912                     config.dv_flow_en) {
 913                         /* TBD check tunnel lro caps. */
 914                         config.lro.supported = config.hca_attr.lro_cap;
 915                         DRV_LOG(DEBUG, "Device supports LRO");
 916                         /*
 917                          * If LRO timeout is not configured by application,
 918                          * use the minimal supported value.
 919                          */
 920                         if (!config.lro.timeout)
 921                                 config.lro.timeout =
 922                                 config.hca_attr.lro_timer_supported_periods[0];
 923                         DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
 924                                 config.lro.timeout);
 925                 }
 926 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER)
 927                 if (config.hca_attr.qos.sup && config.hca_attr.qos.srtcm_sup &&
 928                     config.dv_flow_en) {
 929                         uint8_t reg_c_mask =
 930                                 config.hca_attr.qos.flow_meter_reg_c_ids;
 931                         /*
 932                          * Meter needs two REG_C's for color match and pre-sfx
 933                          * flow match. Here get the REG_C for color match.
 934                          * REG_C_0 and REG_C_1 is reserved for metadata feature.
 935                          */
 936                         reg_c_mask &= 0xfc;
 937                         if (__builtin_popcount(reg_c_mask) < 1) {
 938                                 priv->mtr_en = 0;
 939                                 DRV_LOG(WARNING, "No available register for"
 940                                         " meter.");
 941                         } else {
 942                                 priv->mtr_color_reg = ffs(reg_c_mask) - 1 +
 943                                                       REG_C_0;
 944                                 priv->mtr_en = 1;
 945                                 priv->mtr_reg_share =
 946                                       config.hca_attr.qos.flow_meter_reg_share;
 947                                 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
 948                                         priv->mtr_color_reg);
 949                         }
 950                 }
 951 #endif
 952         }
 953         if (config.mprq.enabled && mprq) {
 954                 if (config.mprq.stride_num_n &&
 955                     (config.mprq.stride_num_n > mprq_max_stride_num_n ||
 956                      config.mprq.stride_num_n < mprq_min_stride_num_n)) {
 957                         config.mprq.stride_num_n =
 958                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
 959                                                 mprq_min_stride_num_n),
 960                                         mprq_max_stride_num_n);
 961                         DRV_LOG(WARNING,
 962                                 "the number of strides"
 963                                 " for Multi-Packet RQ is out of range,"
 964                                 " setting default value (%u)",
 965                                 1 << config.mprq.stride_num_n);
 966                 }
 967                 if (config.mprq.stride_size_n &&
 968                     (config.mprq.stride_size_n > mprq_max_stride_size_n ||
 969                      config.mprq.stride_size_n < mprq_min_stride_size_n)) {
 970                         config.mprq.stride_size_n =
 971                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
 972                                                 mprq_min_stride_size_n),
 973                                         mprq_max_stride_size_n);
 974                         DRV_LOG(WARNING,
 975                                 "the size of a stride"
 976                                 " for Multi-Packet RQ is out of range,"
 977                                 " setting default value (%u)",
 978                                 1 << config.mprq.stride_size_n);
 979                 }
 980                 config.mprq.min_stride_size_n = mprq_min_stride_size_n;
 981                 config.mprq.max_stride_size_n = mprq_max_stride_size_n;
 982         } else if (config.mprq.enabled && !mprq) {
 983                 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
 984                 config.mprq.enabled = 0;
 985         }
 986         if (config.max_dump_files_num == 0)
 987                 config.max_dump_files_num = 128;
 988         eth_dev = rte_eth_dev_allocate(name);
 989         if (eth_dev == NULL) {
 990                 DRV_LOG(ERR, "can not allocate rte ethdev");
 991                 err = ENOMEM;
 992                 goto error;
 993         }
 994         /* Flag to call rte_eth_dev_release_port() in rte_eth_dev_close(). */
 995         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
 996         if (priv->representor) {
 997                 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
 998                 eth_dev->data->representor_id = priv->representor_id;
 999         }
1000         /*
1001          * Store associated network device interface index. This index
1002          * is permanent throughout the lifetime of device. So, we may store
1003          * the ifindex here and use the cached value further.
1004          */
1005         MLX5_ASSERT(spawn->ifindex);
1006         priv->if_index = spawn->ifindex;
1007         eth_dev->data->dev_private = priv;
1008         priv->dev_data = eth_dev->data;
1009         eth_dev->data->mac_addrs = priv->mac;
1010         eth_dev->device = dpdk_dev;
1011         /* Configure the first MAC address by default. */
1012         if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1013                 DRV_LOG(ERR,
1014                         "port %u cannot get MAC address, is mlx5_en"
1015                         " loaded? (errno: %s)",
1016                         eth_dev->data->port_id, strerror(rte_errno));
1017                 err = ENODEV;
1018                 goto error;
1019         }
1020         DRV_LOG(INFO,
1021                 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1022                 eth_dev->data->port_id,
1023                 mac.addr_bytes[0], mac.addr_bytes[1],
1024                 mac.addr_bytes[2], mac.addr_bytes[3],
1025                 mac.addr_bytes[4], mac.addr_bytes[5]);
1026 #ifdef RTE_LIBRTE_MLX5_DEBUG
1027         {
1028                 char ifname[IF_NAMESIZE];
1029
1030                 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1031                         DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1032                                 eth_dev->data->port_id, ifname);
1033                 else
1034                         DRV_LOG(DEBUG, "port %u ifname is unknown",
1035                                 eth_dev->data->port_id);
1036         }
1037 #endif
1038         /* Get actual MTU if possible. */
1039         err = mlx5_get_mtu(eth_dev, &priv->mtu);
1040         if (err) {
1041                 err = rte_errno;
1042                 goto error;
1043         }
1044         DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1045                 priv->mtu);
1046         /* Initialize burst functions to prevent crashes before link-up. */
1047         eth_dev->rx_pkt_burst = removed_rx_burst;
1048         eth_dev->tx_pkt_burst = removed_tx_burst;
1049         eth_dev->dev_ops = &mlx5_os_dev_ops;
1050         /* Register MAC address. */
1051         claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1052         if (config.vf && config.vf_nl_en)
1053                 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1054                                       mlx5_ifindex(eth_dev),
1055                                       eth_dev->data->mac_addrs,
1056                                       MLX5_MAX_MAC_ADDRESSES);
1057         priv->flows = 0;
1058         priv->ctrl_flows = 0;
1059         TAILQ_INIT(&priv->flow_meters);
1060         TAILQ_INIT(&priv->flow_meter_profiles);
1061         /* Hint libmlx5 to use PMD allocator for data plane resources */
1062         struct mlx5dv_ctx_allocators alctr = {
1063                 .alloc = &mlx5_alloc_verbs_buf,
1064                 .free = &mlx5_free_verbs_buf,
1065                 .data = priv,
1066         };
1067         mlx5_glue->dv_set_context_attr(sh->ctx,
1068                                        MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1069                                        (void *)((uintptr_t)&alctr));
1070         /* Bring Ethernet device up. */
1071         DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1072                 eth_dev->data->port_id);
1073         mlx5_set_link_up(eth_dev);
1074         /*
1075          * Even though the interrupt handler is not installed yet,
1076          * interrupts will still trigger on the async_fd from
1077          * Verbs context returned by ibv_open_device().
1078          */
1079         mlx5_link_update(eth_dev, 0);
1080 #ifdef HAVE_MLX5DV_DR_ESWITCH
1081         if (!(config.hca_attr.eswitch_manager && config.dv_flow_en &&
1082               (switch_info->representor || switch_info->master)))
1083                 config.dv_esw_en = 0;
1084 #else
1085         config.dv_esw_en = 0;
1086 #endif
1087         /* Detect minimal data bytes to inline. */
1088         mlx5_set_min_inline(spawn, &config);
1089         /* Store device configuration on private structure. */
1090         priv->config = config;
1091         /* Create context for virtual machine VLAN workaround. */
1092         priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1093         if (config.dv_flow_en) {
1094                 err = mlx5_alloc_shared_dr(priv);
1095                 if (err)
1096                         goto error;
1097                 /*
1098                  * RSS id is shared with meter flow id. Meter flow id can only
1099                  * use the 24 MSB of the register.
1100                  */
1101                 priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX >>
1102                                      MLX5_MTR_COLOR_BITS);
1103                 if (!priv->qrss_id_pool) {
1104                         DRV_LOG(ERR, "can't create flow id pool");
1105                         err = ENOMEM;
1106                         goto error;
1107                 }
1108         }
1109         /* Supported Verbs flow priority number detection. */
1110         err = mlx5_flow_discover_priorities(eth_dev);
1111         if (err < 0) {
1112                 err = -err;
1113                 goto error;
1114         }
1115         priv->config.flow_prio = err;
1116         if (!priv->config.dv_esw_en &&
1117             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1118                 DRV_LOG(WARNING, "metadata mode %u is not supported "
1119                                  "(no E-Switch)", priv->config.dv_xmeta_en);
1120                 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1121         }
1122         mlx5_set_metadata_mask(eth_dev);
1123         if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1124             !priv->sh->dv_regc0_mask) {
1125                 DRV_LOG(ERR, "metadata mode %u is not supported "
1126                              "(no metadata reg_c[0] is available)",
1127                              priv->config.dv_xmeta_en);
1128                         err = ENOTSUP;
1129                         goto error;
1130         }
1131         /*
1132          * Allocate the buffer for flow creating, just once.
1133          * The allocation must be done before any flow creating.
1134          */
1135         mlx5_flow_alloc_intermediate(eth_dev);
1136         /* Query availability of metadata reg_c's. */
1137         err = mlx5_flow_discover_mreg_c(eth_dev);
1138         if (err < 0) {
1139                 err = -err;
1140                 goto error;
1141         }
1142         if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1143                 DRV_LOG(DEBUG,
1144                         "port %u extensive metadata register is not supported",
1145                         eth_dev->data->port_id);
1146                 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1147                         DRV_LOG(ERR, "metadata mode %u is not supported "
1148                                      "(no metadata registers available)",
1149                                      priv->config.dv_xmeta_en);
1150                         err = ENOTSUP;
1151                         goto error;
1152                 }
1153         }
1154         if (priv->config.dv_flow_en &&
1155             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1156             mlx5_flow_ext_mreg_supported(eth_dev) &&
1157             priv->sh->dv_regc0_mask) {
1158                 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1159                                                       MLX5_FLOW_MREG_HTABLE_SZ);
1160                 if (!priv->mreg_cp_tbl) {
1161                         err = ENOMEM;
1162                         goto error;
1163                 }
1164         }
1165         return eth_dev;
1166 error:
1167         if (priv) {
1168                 if (priv->mreg_cp_tbl)
1169                         mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL);
1170                 if (priv->sh)
1171                         mlx5_os_free_shared_dr(priv);
1172                 if (priv->nl_socket_route >= 0)
1173                         close(priv->nl_socket_route);
1174                 if (priv->nl_socket_rdma >= 0)
1175                         close(priv->nl_socket_rdma);
1176                 if (priv->vmwa_context)
1177                         mlx5_vlan_vmwa_exit(priv->vmwa_context);
1178                 if (priv->qrss_id_pool)
1179                         mlx5_flow_id_pool_release(priv->qrss_id_pool);
1180                 if (own_domain_id)
1181                         claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1182                 rte_free(priv);
1183                 if (eth_dev != NULL)
1184                         eth_dev->data->dev_private = NULL;
1185         }
1186         if (eth_dev != NULL) {
1187                 /* mac_addrs must not be freed alone because part of
1188                  * dev_private
1189                  **/
1190                 eth_dev->data->mac_addrs = NULL;
1191                 rte_eth_dev_release_port(eth_dev);
1192         }
1193         if (sh)
1194                 mlx5_free_shared_dev_ctx(sh);
1195         MLX5_ASSERT(err > 0);
1196         rte_errno = err;
1197         return NULL;
1198 }
1199
1200 /**
1201  * Comparison callback to sort device data.
1202  *
1203  * This is meant to be used with qsort().
1204  *
1205  * @param a[in]
1206  *   Pointer to pointer to first data object.
1207  * @param b[in]
1208  *   Pointer to pointer to second data object.
1209  *
1210  * @return
1211  *   0 if both objects are equal, less than 0 if the first argument is less
1212  *   than the second, greater than 0 otherwise.
1213  */
1214 static int
1215 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1216 {
1217         const struct mlx5_switch_info *si_a =
1218                 &((const struct mlx5_dev_spawn_data *)a)->info;
1219         const struct mlx5_switch_info *si_b =
1220                 &((const struct mlx5_dev_spawn_data *)b)->info;
1221         int ret;
1222
1223         /* Master device first. */
1224         ret = si_b->master - si_a->master;
1225         if (ret)
1226                 return ret;
1227         /* Then representor devices. */
1228         ret = si_b->representor - si_a->representor;
1229         if (ret)
1230                 return ret;
1231         /* Unidentified devices come last in no specific order. */
1232         if (!si_a->representor)
1233                 return 0;
1234         /* Order representors by name. */
1235         return si_a->port_name - si_b->port_name;
1236 }
1237
1238 /**
1239  * Match PCI information for possible slaves of bonding device.
1240  *
1241  * @param[in] ibv_dev
1242  *   Pointer to Infiniband device structure.
1243  * @param[in] pci_dev
1244  *   Pointer to PCI device structure to match PCI address.
1245  * @param[in] nl_rdma
1246  *   Netlink RDMA group socket handle.
1247  *
1248  * @return
1249  *   negative value if no bonding device found, otherwise
1250  *   positive index of slave PF in bonding.
1251  */
1252 static int
1253 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
1254                            const struct rte_pci_device *pci_dev,
1255                            int nl_rdma)
1256 {
1257         char ifname[IF_NAMESIZE + 1];
1258         unsigned int ifindex;
1259         unsigned int np, i;
1260         FILE *file = NULL;
1261         int pf = -1;
1262
1263         /*
1264          * Try to get master device name. If something goes
1265          * wrong suppose the lack of kernel support and no
1266          * bonding devices.
1267          */
1268         if (nl_rdma < 0)
1269                 return -1;
1270         if (!strstr(ibv_dev->name, "bond"))
1271                 return -1;
1272         np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
1273         if (!np)
1274                 return -1;
1275         /*
1276          * The Master device might not be on the predefined
1277          * port (not on port index 1, it is not garanted),
1278          * we have to scan all Infiniband device port and
1279          * find master.
1280          */
1281         for (i = 1; i <= np; ++i) {
1282                 /* Check whether Infiniband port is populated. */
1283                 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
1284                 if (!ifindex)
1285                         continue;
1286                 if (!if_indextoname(ifindex, ifname))
1287                         continue;
1288                 /* Try to read bonding slave names from sysfs. */
1289                 MKSTR(slaves,
1290                       "/sys/class/net/%s/master/bonding/slaves", ifname);
1291                 file = fopen(slaves, "r");
1292                 if (file)
1293                         break;
1294         }
1295         if (!file)
1296                 return -1;
1297         /* Use safe format to check maximal buffer length. */
1298         MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
1299         while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
1300                 char tmp_str[IF_NAMESIZE + 32];
1301                 struct rte_pci_addr pci_addr;
1302                 struct mlx5_switch_info info;
1303
1304                 /* Process slave interface names in the loop. */
1305                 snprintf(tmp_str, sizeof(tmp_str),
1306                          "/sys/class/net/%s", ifname);
1307                 if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) {
1308                         DRV_LOG(WARNING, "can not get PCI address"
1309                                          " for netdev \"%s\"", ifname);
1310                         continue;
1311                 }
1312                 if (pci_dev->addr.domain != pci_addr.domain ||
1313                     pci_dev->addr.bus != pci_addr.bus ||
1314                     pci_dev->addr.devid != pci_addr.devid ||
1315                     pci_dev->addr.function != pci_addr.function)
1316                         continue;
1317                 /* Slave interface PCI address match found. */
1318                 fclose(file);
1319                 snprintf(tmp_str, sizeof(tmp_str),
1320                          "/sys/class/net/%s/phys_port_name", ifname);
1321                 file = fopen(tmp_str, "rb");
1322                 if (!file)
1323                         break;
1324                 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
1325                 if (fscanf(file, "%32s", tmp_str) == 1)
1326                         mlx5_translate_port_name(tmp_str, &info);
1327                 if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY ||
1328                     info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
1329                         pf = info.port_name;
1330                 break;
1331         }
1332         if (file)
1333                 fclose(file);
1334         return pf;
1335 }
1336
1337 /**
1338  * DPDK callback to register a PCI device.
1339  *
1340  * This function spawns Ethernet devices out of a given PCI device.
1341  *
1342  * @param[in] pci_drv
1343  *   PCI driver structure (mlx5_driver).
1344  * @param[in] pci_dev
1345  *   PCI device information.
1346  *
1347  * @return
1348  *   0 on success, a negative errno value otherwise and rte_errno is set.
1349  */
1350 int
1351 mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1352                   struct rte_pci_device *pci_dev)
1353 {
1354         struct ibv_device **ibv_list;
1355         /*
1356          * Number of found IB Devices matching with requested PCI BDF.
1357          * nd != 1 means there are multiple IB devices over the same
1358          * PCI device and we have representors and master.
1359          */
1360         unsigned int nd = 0;
1361         /*
1362          * Number of found IB device Ports. nd = 1 and np = 1..n means
1363          * we have the single multiport IB device, and there may be
1364          * representors attached to some of found ports.
1365          */
1366         unsigned int np = 0;
1367         /*
1368          * Number of DPDK ethernet devices to Spawn - either over
1369          * multiple IB devices or multiple ports of single IB device.
1370          * Actually this is the number of iterations to spawn.
1371          */
1372         unsigned int ns = 0;
1373         /*
1374          * Bonding device
1375          *   < 0 - no bonding device (single one)
1376          *  >= 0 - bonding device (value is slave PF index)
1377          */
1378         int bd = -1;
1379         struct mlx5_dev_spawn_data *list = NULL;
1380         struct mlx5_dev_config dev_config;
1381         int ret;
1382
1383         if (mlx5_class_get(pci_dev->device.devargs) != MLX5_CLASS_NET) {
1384                 DRV_LOG(DEBUG, "Skip probing - should be probed by other mlx5"
1385                         " driver.");
1386                 return 1;
1387         }
1388         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
1389                 mlx5_pmd_socket_init();
1390         ret = mlx5_init_once();
1391         if (ret) {
1392                 DRV_LOG(ERR, "unable to init PMD global data: %s",
1393                         strerror(rte_errno));
1394                 return -rte_errno;
1395         }
1396         MLX5_ASSERT(pci_drv == &mlx5_driver);
1397         errno = 0;
1398         ibv_list = mlx5_glue->get_device_list(&ret);
1399         if (!ibv_list) {
1400                 rte_errno = errno ? errno : ENOSYS;
1401                 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
1402                 return -rte_errno;
1403         }
1404         /*
1405          * First scan the list of all Infiniband devices to find
1406          * matching ones, gathering into the list.
1407          */
1408         struct ibv_device *ibv_match[ret + 1];
1409         int nl_route = mlx5_nl_init(NETLINK_ROUTE);
1410         int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
1411         unsigned int i;
1412
1413         while (ret-- > 0) {
1414                 struct rte_pci_addr pci_addr;
1415
1416                 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
1417                 bd = mlx5_device_bond_pci_match
1418                                 (ibv_list[ret], pci_dev, nl_rdma);
1419                 if (bd >= 0) {
1420                         /*
1421                          * Bonding device detected. Only one match is allowed,
1422                          * the bonding is supported over multi-port IB device,
1423                          * there should be no matches on representor PCI
1424                          * functions or non VF LAG bonding devices with
1425                          * specified address.
1426                          */
1427                         if (nd) {
1428                                 DRV_LOG(ERR,
1429                                         "multiple PCI match on bonding device"
1430                                         "\"%s\" found", ibv_list[ret]->name);
1431                                 rte_errno = ENOENT;
1432                                 ret = -rte_errno;
1433                                 goto exit;
1434                         }
1435                         DRV_LOG(INFO, "PCI information matches for"
1436                                       " slave %d bonding device \"%s\"",
1437                                       bd, ibv_list[ret]->name);
1438                         ibv_match[nd++] = ibv_list[ret];
1439                         break;
1440                 }
1441                 if (mlx5_dev_to_pci_addr
1442                         (ibv_list[ret]->ibdev_path, &pci_addr))
1443                         continue;
1444                 if (pci_dev->addr.domain != pci_addr.domain ||
1445                     pci_dev->addr.bus != pci_addr.bus ||
1446                     pci_dev->addr.devid != pci_addr.devid ||
1447                     pci_dev->addr.function != pci_addr.function)
1448                         continue;
1449                 DRV_LOG(INFO, "PCI information matches for device \"%s\"",
1450                         ibv_list[ret]->name);
1451                 ibv_match[nd++] = ibv_list[ret];
1452         }
1453         ibv_match[nd] = NULL;
1454         if (!nd) {
1455                 /* No device matches, just complain and bail out. */
1456                 DRV_LOG(WARNING,
1457                         "no Verbs device matches PCI device " PCI_PRI_FMT ","
1458                         " are kernel drivers loaded?",
1459                         pci_dev->addr.domain, pci_dev->addr.bus,
1460                         pci_dev->addr.devid, pci_dev->addr.function);
1461                 rte_errno = ENOENT;
1462                 ret = -rte_errno;
1463                 goto exit;
1464         }
1465         if (nd == 1) {
1466                 /*
1467                  * Found single matching device may have multiple ports.
1468                  * Each port may be representor, we have to check the port
1469                  * number and check the representors existence.
1470                  */
1471                 if (nl_rdma >= 0)
1472                         np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
1473                 if (!np)
1474                         DRV_LOG(WARNING, "can not get IB device \"%s\""
1475                                          " ports number", ibv_match[0]->name);
1476                 if (bd >= 0 && !np) {
1477                         DRV_LOG(ERR, "can not get ports"
1478                                      " for bonding device");
1479                         rte_errno = ENOENT;
1480                         ret = -rte_errno;
1481                         goto exit;
1482                 }
1483         }
1484 #ifndef HAVE_MLX5DV_DR_DEVX_PORT
1485         if (bd >= 0) {
1486                 /*
1487                  * This may happen if there is VF LAG kernel support and
1488                  * application is compiled with older rdma_core library.
1489                  */
1490                 DRV_LOG(ERR,
1491                         "No kernel/verbs support for VF LAG bonding found.");
1492                 rte_errno = ENOTSUP;
1493                 ret = -rte_errno;
1494                 goto exit;
1495         }
1496 #endif
1497         /*
1498          * Now we can determine the maximal
1499          * amount of devices to be spawned.
1500          */
1501         list = rte_zmalloc("device spawn data",
1502                          sizeof(struct mlx5_dev_spawn_data) *
1503                          (np ? np : nd),
1504                          RTE_CACHE_LINE_SIZE);
1505         if (!list) {
1506                 DRV_LOG(ERR, "spawn data array allocation failure");
1507                 rte_errno = ENOMEM;
1508                 ret = -rte_errno;
1509                 goto exit;
1510         }
1511         if (bd >= 0 || np > 1) {
1512                 /*
1513                  * Single IB device with multiple ports found,
1514                  * it may be E-Switch master device and representors.
1515                  * We have to perform identification through the ports.
1516                  */
1517                 MLX5_ASSERT(nl_rdma >= 0);
1518                 MLX5_ASSERT(ns == 0);
1519                 MLX5_ASSERT(nd == 1);
1520                 MLX5_ASSERT(np);
1521                 for (i = 1; i <= np; ++i) {
1522                         list[ns].max_port = np;
1523                         list[ns].phys_port = i;
1524                         list[ns].phys_dev = ibv_match[0];
1525                         list[ns].eth_dev = NULL;
1526                         list[ns].pci_dev = pci_dev;
1527                         list[ns].pf_bond = bd;
1528                         list[ns].ifindex = mlx5_nl_ifindex
1529                                 (nl_rdma,
1530                                 mlx5_os_get_dev_device_name
1531                                                 (list[ns].phys_dev), i);
1532                         if (!list[ns].ifindex) {
1533                                 /*
1534                                  * No network interface index found for the
1535                                  * specified port, it means there is no
1536                                  * representor on this port. It's OK,
1537                                  * there can be disabled ports, for example
1538                                  * if sriov_numvfs < sriov_totalvfs.
1539                                  */
1540                                 continue;
1541                         }
1542                         ret = -1;
1543                         if (nl_route >= 0)
1544                                 ret = mlx5_nl_switch_info
1545                                                (nl_route,
1546                                                 list[ns].ifindex,
1547                                                 &list[ns].info);
1548                         if (ret || (!list[ns].info.representor &&
1549                                     !list[ns].info.master)) {
1550                                 /*
1551                                  * We failed to recognize representors with
1552                                  * Netlink, let's try to perform the task
1553                                  * with sysfs.
1554                                  */
1555                                 ret =  mlx5_sysfs_switch_info
1556                                                 (list[ns].ifindex,
1557                                                  &list[ns].info);
1558                         }
1559                         if (!ret && bd >= 0) {
1560                                 switch (list[ns].info.name_type) {
1561                                 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
1562                                         if (list[ns].info.port_name == bd)
1563                                                 ns++;
1564                                         break;
1565                                 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
1566                                         if (list[ns].info.pf_num == bd)
1567                                                 ns++;
1568                                         break;
1569                                 default:
1570                                         break;
1571                                 }
1572                                 continue;
1573                         }
1574                         if (!ret && (list[ns].info.representor ^
1575                                      list[ns].info.master))
1576                                 ns++;
1577                 }
1578                 if (!ns) {
1579                         DRV_LOG(ERR,
1580                                 "unable to recognize master/representors"
1581                                 " on the IB device with multiple ports");
1582                         rte_errno = ENOENT;
1583                         ret = -rte_errno;
1584                         goto exit;
1585                 }
1586         } else {
1587                 /*
1588                  * The existence of several matching entries (nd > 1) means
1589                  * port representors have been instantiated. No existing Verbs
1590                  * call nor sysfs entries can tell them apart, this can only
1591                  * be done through Netlink calls assuming kernel drivers are
1592                  * recent enough to support them.
1593                  *
1594                  * In the event of identification failure through Netlink,
1595                  * try again through sysfs, then:
1596                  *
1597                  * 1. A single IB device matches (nd == 1) with single
1598                  *    port (np=0/1) and is not a representor, assume
1599                  *    no switch support.
1600                  *
1601                  * 2. Otherwise no safe assumptions can be made;
1602                  *    complain louder and bail out.
1603                  */
1604                 for (i = 0; i != nd; ++i) {
1605                         memset(&list[ns].info, 0, sizeof(list[ns].info));
1606                         list[ns].max_port = 1;
1607                         list[ns].phys_port = 1;
1608                         list[ns].phys_dev = ibv_match[i];
1609                         list[ns].eth_dev = NULL;
1610                         list[ns].pci_dev = pci_dev;
1611                         list[ns].pf_bond = -1;
1612                         list[ns].ifindex = 0;
1613                         if (nl_rdma >= 0)
1614                                 list[ns].ifindex = mlx5_nl_ifindex
1615                                 (nl_rdma,
1616                                 mlx5_os_get_dev_device_name
1617                                                 (list[ns].phys_dev), 1);
1618                         if (!list[ns].ifindex) {
1619                                 char ifname[IF_NAMESIZE];
1620
1621                                 /*
1622                                  * Netlink failed, it may happen with old
1623                                  * ib_core kernel driver (before 4.16).
1624                                  * We can assume there is old driver because
1625                                  * here we are processing single ports IB
1626                                  * devices. Let's try sysfs to retrieve
1627                                  * the ifindex. The method works for
1628                                  * master device only.
1629                                  */
1630                                 if (nd > 1) {
1631                                         /*
1632                                          * Multiple devices found, assume
1633                                          * representors, can not distinguish
1634                                          * master/representor and retrieve
1635                                          * ifindex via sysfs.
1636                                          */
1637                                         continue;
1638                                 }
1639                                 ret = mlx5_get_master_ifname
1640                                         (ibv_match[i]->ibdev_path, &ifname);
1641                                 if (!ret)
1642                                         list[ns].ifindex =
1643                                                 if_nametoindex(ifname);
1644                                 if (!list[ns].ifindex) {
1645                                         /*
1646                                          * No network interface index found
1647                                          * for the specified device, it means
1648                                          * there it is neither representor
1649                                          * nor master.
1650                                          */
1651                                         continue;
1652                                 }
1653                         }
1654                         ret = -1;
1655                         if (nl_route >= 0)
1656                                 ret = mlx5_nl_switch_info
1657                                                (nl_route,
1658                                                 list[ns].ifindex,
1659                                                 &list[ns].info);
1660                         if (ret || (!list[ns].info.representor &&
1661                                     !list[ns].info.master)) {
1662                                 /*
1663                                  * We failed to recognize representors with
1664                                  * Netlink, let's try to perform the task
1665                                  * with sysfs.
1666                                  */
1667                                 ret =  mlx5_sysfs_switch_info
1668                                                 (list[ns].ifindex,
1669                                                  &list[ns].info);
1670                         }
1671                         if (!ret && (list[ns].info.representor ^
1672                                      list[ns].info.master)) {
1673                                 ns++;
1674                         } else if ((nd == 1) &&
1675                                    !list[ns].info.representor &&
1676                                    !list[ns].info.master) {
1677                                 /*
1678                                  * Single IB device with
1679                                  * one physical port and
1680                                  * attached network device.
1681                                  * May be SRIOV is not enabled
1682                                  * or there is no representors.
1683                                  */
1684                                 DRV_LOG(INFO, "no E-Switch support detected");
1685                                 ns++;
1686                                 break;
1687                         }
1688                 }
1689                 if (!ns) {
1690                         DRV_LOG(ERR,
1691                                 "unable to recognize master/representors"
1692                                 " on the multiple IB devices");
1693                         rte_errno = ENOENT;
1694                         ret = -rte_errno;
1695                         goto exit;
1696                 }
1697         }
1698         MLX5_ASSERT(ns);
1699         /*
1700          * Sort list to probe devices in natural order for users convenience
1701          * (i.e. master first, then representors from lowest to highest ID).
1702          */
1703         qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
1704         /* Default configuration. */
1705         dev_config = (struct mlx5_dev_config){
1706                 .hw_padding = 0,
1707                 .mps = MLX5_ARG_UNSET,
1708                 .dbnc = MLX5_ARG_UNSET,
1709                 .rx_vec_en = 1,
1710                 .txq_inline_max = MLX5_ARG_UNSET,
1711                 .txq_inline_min = MLX5_ARG_UNSET,
1712                 .txq_inline_mpw = MLX5_ARG_UNSET,
1713                 .txqs_inline = MLX5_ARG_UNSET,
1714                 .vf_nl_en = 1,
1715                 .mr_ext_memseg_en = 1,
1716                 .mprq = {
1717                         .enabled = 0, /* Disabled by default. */
1718                         .stride_num_n = 0,
1719                         .stride_size_n = 0,
1720                         .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN,
1721                         .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
1722                 },
1723                 .dv_esw_en = 1,
1724                 .dv_flow_en = 1,
1725                 .log_hp_size = MLX5_ARG_UNSET,
1726         };
1727         /* Device specific configuration. */
1728         switch (pci_dev->id.device_id) {
1729         case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
1730         case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
1731         case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
1732         case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
1733         case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
1734         case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
1735         case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF:
1736                 dev_config.vf = 1;
1737                 break;
1738         default:
1739                 break;
1740         }
1741         for (i = 0; i != ns; ++i) {
1742                 uint32_t restore;
1743
1744                 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
1745                                                  &list[i],
1746                                                  dev_config);
1747                 if (!list[i].eth_dev) {
1748                         if (rte_errno != EBUSY && rte_errno != EEXIST)
1749                                 break;
1750                         /* Device is disabled or already spawned. Ignore it. */
1751                         continue;
1752                 }
1753                 restore = list[i].eth_dev->data->dev_flags;
1754                 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
1755                 /* Restore non-PCI flags cleared by the above call. */
1756                 list[i].eth_dev->data->dev_flags |= restore;
1757                 rte_eth_dev_probing_finish(list[i].eth_dev);
1758         }
1759         if (i != ns) {
1760                 DRV_LOG(ERR,
1761                         "probe of PCI device " PCI_PRI_FMT " aborted after"
1762                         " encountering an error: %s",
1763                         pci_dev->addr.domain, pci_dev->addr.bus,
1764                         pci_dev->addr.devid, pci_dev->addr.function,
1765                         strerror(rte_errno));
1766                 ret = -rte_errno;
1767                 /* Roll back. */
1768                 while (i--) {
1769                         if (!list[i].eth_dev)
1770                                 continue;
1771                         mlx5_dev_close(list[i].eth_dev);
1772                         /* mac_addrs must not be freed because in dev_private */
1773                         list[i].eth_dev->data->mac_addrs = NULL;
1774                         claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
1775                 }
1776                 /* Restore original error. */
1777                 rte_errno = -ret;
1778         } else {
1779                 ret = 0;
1780         }
1781 exit:
1782         /*
1783          * Do the routine cleanup:
1784          * - close opened Netlink sockets
1785          * - free allocated spawn data array
1786          * - free the Infiniband device list
1787          */
1788         if (nl_rdma >= 0)
1789                 close(nl_rdma);
1790         if (nl_route >= 0)
1791                 close(nl_route);
1792         if (list)
1793                 rte_free(list);
1794         MLX5_ASSERT(ibv_list);
1795         mlx5_glue->free_device_list(ibv_list);
1796         return ret;
1797 }
1798
1799 static int
1800 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
1801 {
1802         char *env;
1803         int value;
1804
1805         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
1806         /* Get environment variable to store. */
1807         env = getenv(MLX5_SHUT_UP_BF);
1808         value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
1809         if (config->dbnc == MLX5_ARG_UNSET)
1810                 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
1811         else
1812                 setenv(MLX5_SHUT_UP_BF,
1813                        config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
1814         return value;
1815 }
1816
1817 static void
1818 mlx5_restore_doorbell_mapping_env(int value)
1819 {
1820         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
1821         /* Restore the original environment variable state. */
1822         if (value == MLX5_ARG_UNSET)
1823                 unsetenv(MLX5_SHUT_UP_BF);
1824         else
1825                 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
1826 }
1827
1828 /**
1829  * Extract pdn of PD object using DV API.
1830  *
1831  * @param[in] pd
1832  *   Pointer to the verbs PD object.
1833  * @param[out] pdn
1834  *   Pointer to the PD object number variable.
1835  *
1836  * @return
1837  *   0 on success, error value otherwise.
1838  */
1839 int
1840 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
1841 {
1842 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
1843         struct mlx5dv_obj obj;
1844         struct mlx5dv_pd pd_info;
1845         int ret = 0;
1846
1847         obj.pd.in = pd;
1848         obj.pd.out = &pd_info;
1849         ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
1850         if (ret) {
1851                 DRV_LOG(DEBUG, "Fail to get PD object info");
1852                 return ret;
1853         }
1854         *pdn = pd_info.pdn;
1855         return 0;
1856 #else
1857         (void)pd;
1858         (void)pdn;
1859         return -ENOTSUP;
1860 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
1861 }
1862
1863 /**
1864  * Function API to open IB device.
1865  *
1866  * This function calls the Linux glue APIs to open a device.
1867  *
1868  * @param[in] spawn
1869  *   Pointer to the IB device attributes (name, port, etc).
1870  * @param[out] config
1871  *   Pointer to device configuration structure.
1872  * @param[out] sh
1873  *   Pointer to shared context structure.
1874  *
1875  * @return
1876  *   0 on success, a positive error value otherwise.
1877  */
1878 int
1879 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
1880                      const struct mlx5_dev_config *config,
1881                      struct mlx5_dev_ctx_shared *sh)
1882 {
1883         int dbmap_env;
1884         int err = 0;
1885         /*
1886          * Configure environment variable "MLX5_BF_SHUT_UP"
1887          * before the device creation. The rdma_core library
1888          * checks the variable at device creation and
1889          * stores the result internally.
1890          */
1891         dbmap_env = mlx5_config_doorbell_mapping_env(config);
1892         /* Try to open IB device with DV first, then usual Verbs. */
1893         errno = 0;
1894         sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
1895         if (sh->ctx) {
1896                 sh->devx = 1;
1897                 DRV_LOG(DEBUG, "DevX is supported");
1898                 /* The device is created, no need for environment. */
1899                 mlx5_restore_doorbell_mapping_env(dbmap_env);
1900         } else {
1901                 /* The environment variable is still configured. */
1902                 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
1903                 err = errno ? errno : ENODEV;
1904                 /*
1905                  * The environment variable is not needed anymore,
1906                  * all device creation attempts are completed.
1907                  */
1908                 mlx5_restore_doorbell_mapping_env(dbmap_env);
1909                 if (!sh->ctx)
1910                         return err;
1911                 DRV_LOG(DEBUG, "DevX is NOT supported");
1912                 err = 0;
1913         }
1914         return err;
1915 }
1916
1917 /**
1918  * Install shared asynchronous device events handler.
1919  * This function is implemented to support event sharing
1920  * between multiple ports of single IB device.
1921  *
1922  * @param sh
1923  *   Pointer to mlx5_dev_ctx_shared object.
1924  */
1925 void
1926 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
1927 {
1928         int ret;
1929         int flags;
1930
1931         sh->intr_handle.fd = -1;
1932         flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
1933         ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
1934                     F_SETFL, flags | O_NONBLOCK);
1935         if (ret) {
1936                 DRV_LOG(INFO, "failed to change file descriptor async event"
1937                         " queue");
1938         } else {
1939                 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
1940                 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
1941                 if (rte_intr_callback_register(&sh->intr_handle,
1942                                         mlx5_dev_interrupt_handler, sh)) {
1943                         DRV_LOG(INFO, "Fail to install the shared interrupt.");
1944                         sh->intr_handle.fd = -1;
1945                 }
1946         }
1947         if (sh->devx) {
1948 #ifdef HAVE_IBV_DEVX_ASYNC
1949                 sh->intr_handle_devx.fd = -1;
1950                 sh->devx_comp =
1951                         (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
1952                 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
1953                 if (!devx_comp) {
1954                         DRV_LOG(INFO, "failed to allocate devx_comp.");
1955                         return;
1956                 }
1957                 flags = fcntl(devx_comp->fd, F_GETFL);
1958                 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
1959                 if (ret) {
1960                         DRV_LOG(INFO, "failed to change file descriptor"
1961                                 " devx comp");
1962                         return;
1963                 }
1964                 sh->intr_handle_devx.fd = devx_comp->fd;
1965                 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
1966                 if (rte_intr_callback_register(&sh->intr_handle_devx,
1967                                         mlx5_dev_interrupt_handler_devx, sh)) {
1968                         DRV_LOG(INFO, "Fail to install the devx shared"
1969                                 " interrupt.");
1970                         sh->intr_handle_devx.fd = -1;
1971                 }
1972 #endif /* HAVE_IBV_DEVX_ASYNC */
1973         }
1974 }
1975
1976 /**
1977  * Uninstall shared asynchronous device events handler.
1978  * This function is implemented to support event sharing
1979  * between multiple ports of single IB device.
1980  *
1981  * @param dev
1982  *   Pointer to mlx5_dev_ctx_shared object.
1983  */
1984 void
1985 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
1986 {
1987         if (sh->intr_handle.fd >= 0)
1988                 mlx5_intr_callback_unregister(&sh->intr_handle,
1989                                               mlx5_dev_interrupt_handler, sh);
1990 #ifdef HAVE_IBV_DEVX_ASYNC
1991         if (sh->intr_handle_devx.fd >= 0)
1992                 rte_intr_callback_unregister(&sh->intr_handle_devx,
1993                                   mlx5_dev_interrupt_handler_devx, sh);
1994         if (sh->devx_comp)
1995                 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
1996 #endif
1997 }
1998
1999 /**
2000  * Read statistics by a named counter.
2001  *
2002  * @param[in] priv
2003  *   Pointer to the private device data structure.
2004  * @param[in] ctr_name
2005  *   Pointer to the name of the statistic counter to read
2006  * @param[out] stat
2007  *   Pointer to read statistic value.
2008  * @return
2009  *   0 on success and stat is valud, 1 if failed to read the value
2010  *   rte_errno is set.
2011  *
2012  */
2013 int
2014 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2015                       uint64_t *stat)
2016 {
2017         int fd;
2018
2019         if (priv->sh) {
2020                 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2021                           priv->sh->ibdev_path,
2022                           priv->dev_port,
2023                           ctr_name);
2024                 fd = open(path, O_RDONLY);
2025                 if (fd != -1) {
2026                         char buf[21] = {'\0'};
2027                         ssize_t n = read(fd, buf, sizeof(buf));
2028
2029                         close(fd);
2030                         if (n != -1) {
2031                                 *stat = strtoull(buf, NULL, 10);
2032                                 return 0;
2033                         }
2034                 }
2035         }
2036         *stat = 0;
2037         return 1;
2038 }
2039
2040 /**
2041  * Read device counters table.
2042  *
2043  * @param dev
2044  *   Pointer to Ethernet device.
2045  * @param[out] stats
2046  *   Counters table output buffer.
2047  *
2048  * @return
2049  *   0 on success and stats is filled, negative errno value otherwise and
2050  *   rte_errno is set.
2051  */
2052 int
2053 mlx5_os_read_dev_counters(struct rte_eth_dev *dev, uint64_t *stats)
2054 {
2055         struct mlx5_priv *priv = dev->data->dev_private;
2056         struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
2057         unsigned int i;
2058         struct ifreq ifr;
2059         unsigned int stats_sz = xstats_ctrl->stats_n * sizeof(uint64_t);
2060         unsigned char et_stat_buf[sizeof(struct ethtool_stats) + stats_sz];
2061         struct ethtool_stats *et_stats = (struct ethtool_stats *)et_stat_buf;
2062         int ret;
2063
2064         et_stats->cmd = ETHTOOL_GSTATS;
2065         et_stats->n_stats = xstats_ctrl->stats_n;
2066         ifr.ifr_data = (caddr_t)et_stats;
2067         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
2068         if (ret) {
2069                 DRV_LOG(WARNING,
2070                         "port %u unable to read statistic values from device",
2071                         dev->data->port_id);
2072                 return ret;
2073         }
2074         for (i = 0; i != xstats_ctrl->mlx5_stats_n; ++i) {
2075                 if (xstats_ctrl->info[i].dev) {
2076                         ret = mlx5_os_read_dev_stat(priv,
2077                                             xstats_ctrl->info[i].ctr_name,
2078                                             &stats[i]);
2079                         /* return last xstats counter if fail to read. */
2080                         if (ret == 0)
2081                                 xstats_ctrl->xstats[i] = stats[i];
2082                         else
2083                                 stats[i] = xstats_ctrl->xstats[i];
2084                 } else {
2085                         stats[i] = (uint64_t)
2086                                 et_stats->data[xstats_ctrl->dev_table_idx[i]];
2087                 }
2088         }
2089         return 0;
2090 }
2091
2092 /**
2093  * Query the number of statistics provided by ETHTOOL.
2094  *
2095  * @param dev
2096  *   Pointer to Ethernet device.
2097  *
2098  * @return
2099  *   Number of statistics on success, negative errno value otherwise and
2100  *   rte_errno is set.
2101  */
2102 int
2103 mlx5_os_get_stats_n(struct rte_eth_dev *dev)
2104 {
2105         struct ethtool_drvinfo drvinfo;
2106         struct ifreq ifr;
2107         int ret;
2108
2109         drvinfo.cmd = ETHTOOL_GDRVINFO;
2110         ifr.ifr_data = (caddr_t)&drvinfo;
2111         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
2112         if (ret) {
2113                 DRV_LOG(WARNING, "port %u unable to query number of statistics",
2114                         dev->data->port_id);
2115                 return ret;
2116         }
2117         return drvinfo.n_stats;
2118 }
2119
2120 static const struct mlx5_counter_ctrl mlx5_counters_init[] = {
2121         {
2122                 .dpdk_name = "rx_port_unicast_bytes",
2123                 .ctr_name = "rx_vport_unicast_bytes",
2124         },
2125         {
2126                 .dpdk_name = "rx_port_multicast_bytes",
2127                 .ctr_name = "rx_vport_multicast_bytes",
2128         },
2129         {
2130                 .dpdk_name = "rx_port_broadcast_bytes",
2131                 .ctr_name = "rx_vport_broadcast_bytes",
2132         },
2133         {
2134                 .dpdk_name = "rx_port_unicast_packets",
2135                 .ctr_name = "rx_vport_unicast_packets",
2136         },
2137         {
2138                 .dpdk_name = "rx_port_multicast_packets",
2139                 .ctr_name = "rx_vport_multicast_packets",
2140         },
2141         {
2142                 .dpdk_name = "rx_port_broadcast_packets",
2143                 .ctr_name = "rx_vport_broadcast_packets",
2144         },
2145         {
2146                 .dpdk_name = "tx_port_unicast_bytes",
2147                 .ctr_name = "tx_vport_unicast_bytes",
2148         },
2149         {
2150                 .dpdk_name = "tx_port_multicast_bytes",
2151                 .ctr_name = "tx_vport_multicast_bytes",
2152         },
2153         {
2154                 .dpdk_name = "tx_port_broadcast_bytes",
2155                 .ctr_name = "tx_vport_broadcast_bytes",
2156         },
2157         {
2158                 .dpdk_name = "tx_port_unicast_packets",
2159                 .ctr_name = "tx_vport_unicast_packets",
2160         },
2161         {
2162                 .dpdk_name = "tx_port_multicast_packets",
2163                 .ctr_name = "tx_vport_multicast_packets",
2164         },
2165         {
2166                 .dpdk_name = "tx_port_broadcast_packets",
2167                 .ctr_name = "tx_vport_broadcast_packets",
2168         },
2169         {
2170                 .dpdk_name = "rx_wqe_err",
2171                 .ctr_name = "rx_wqe_err",
2172         },
2173         {
2174                 .dpdk_name = "rx_crc_errors_phy",
2175                 .ctr_name = "rx_crc_errors_phy",
2176         },
2177         {
2178                 .dpdk_name = "rx_in_range_len_errors_phy",
2179                 .ctr_name = "rx_in_range_len_errors_phy",
2180         },
2181         {
2182                 .dpdk_name = "rx_symbol_err_phy",
2183                 .ctr_name = "rx_symbol_err_phy",
2184         },
2185         {
2186                 .dpdk_name = "tx_errors_phy",
2187                 .ctr_name = "tx_errors_phy",
2188         },
2189         {
2190                 .dpdk_name = "rx_out_of_buffer",
2191                 .ctr_name = "out_of_buffer",
2192                 .dev = 1,
2193         },
2194         {
2195                 .dpdk_name = "tx_packets_phy",
2196                 .ctr_name = "tx_packets_phy",
2197         },
2198         {
2199                 .dpdk_name = "rx_packets_phy",
2200                 .ctr_name = "rx_packets_phy",
2201         },
2202         {
2203                 .dpdk_name = "tx_discards_phy",
2204                 .ctr_name = "tx_discards_phy",
2205         },
2206         {
2207                 .dpdk_name = "rx_discards_phy",
2208                 .ctr_name = "rx_discards_phy",
2209         },
2210         {
2211                 .dpdk_name = "tx_bytes_phy",
2212                 .ctr_name = "tx_bytes_phy",
2213         },
2214         {
2215                 .dpdk_name = "rx_bytes_phy",
2216                 .ctr_name = "rx_bytes_phy",
2217         },
2218         /* Representor only */
2219         {
2220                 .dpdk_name = "rx_packets",
2221                 .ctr_name = "vport_rx_packets",
2222         },
2223         {
2224                 .dpdk_name = "rx_bytes",
2225                 .ctr_name = "vport_rx_bytes",
2226         },
2227         {
2228                 .dpdk_name = "tx_packets",
2229                 .ctr_name = "vport_tx_packets",
2230         },
2231         {
2232                 .dpdk_name = "tx_bytes",
2233                 .ctr_name = "vport_tx_bytes",
2234         },
2235 };
2236
2237 static const unsigned int xstats_n = RTE_DIM(mlx5_counters_init);
2238
2239 /**
2240  * Init the structures to read device counters.
2241  *
2242  * @param dev
2243  *   Pointer to Ethernet device.
2244  */
2245 void
2246 mlx5_os_stats_init(struct rte_eth_dev *dev)
2247 {
2248         struct mlx5_priv *priv = dev->data->dev_private;
2249         struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
2250         struct mlx5_stats_ctrl *stats_ctrl = &priv->stats_ctrl;
2251         unsigned int i;
2252         unsigned int j;
2253         struct ifreq ifr;
2254         struct ethtool_gstrings *strings = NULL;
2255         unsigned int dev_stats_n;
2256         unsigned int str_sz;
2257         int ret;
2258
2259         /* So that it won't aggregate for each init. */
2260         xstats_ctrl->mlx5_stats_n = 0;
2261         ret = mlx5_os_get_stats_n(dev);
2262         if (ret < 0) {
2263                 DRV_LOG(WARNING, "port %u no extended statistics available",
2264                         dev->data->port_id);
2265                 return;
2266         }
2267         dev_stats_n = ret;
2268         /* Allocate memory to grab stat names and values. */
2269         str_sz = dev_stats_n * ETH_GSTRING_LEN;
2270         strings = (struct ethtool_gstrings *)
2271                   rte_malloc("xstats_strings",
2272                              str_sz + sizeof(struct ethtool_gstrings), 0);
2273         if (!strings) {
2274                 DRV_LOG(WARNING, "port %u unable to allocate memory for xstats",
2275                      dev->data->port_id);
2276                 return;
2277         }
2278         strings->cmd = ETHTOOL_GSTRINGS;
2279         strings->string_set = ETH_SS_STATS;
2280         strings->len = dev_stats_n;
2281         ifr.ifr_data = (caddr_t)strings;
2282         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
2283         if (ret) {
2284                 DRV_LOG(WARNING, "port %u unable to get statistic names",
2285                         dev->data->port_id);
2286                 goto free;
2287         }
2288         for (i = 0; i != dev_stats_n; ++i) {
2289                 const char *curr_string = (const char *)
2290                         &strings->data[i * ETH_GSTRING_LEN];
2291
2292                 for (j = 0; j != xstats_n; ++j) {
2293                         if (!strcmp(mlx5_counters_init[j].ctr_name,
2294                                     curr_string)) {
2295                                 unsigned int idx = xstats_ctrl->mlx5_stats_n++;
2296
2297                                 xstats_ctrl->dev_table_idx[idx] = i;
2298                                 xstats_ctrl->info[idx] = mlx5_counters_init[j];
2299                                 break;
2300                         }
2301                 }
2302         }
2303         /* Add dev counters. */
2304         for (i = 0; i != xstats_n; ++i) {
2305                 if (mlx5_counters_init[i].dev) {
2306                         unsigned int idx = xstats_ctrl->mlx5_stats_n++;
2307
2308                         xstats_ctrl->info[idx] = mlx5_counters_init[i];
2309                         xstats_ctrl->hw_stats[idx] = 0;
2310                 }
2311         }
2312         MLX5_ASSERT(xstats_ctrl->mlx5_stats_n <= MLX5_MAX_XSTATS);
2313         xstats_ctrl->stats_n = dev_stats_n;
2314         /* Copy to base at first time. */
2315         ret = mlx5_os_read_dev_counters(dev, xstats_ctrl->base);
2316         if (ret)
2317                 DRV_LOG(ERR, "port %u cannot read device counters: %s",
2318                         dev->data->port_id, strerror(rte_errno));
2319         mlx5_os_read_dev_stat(priv, "out_of_buffer", &stats_ctrl->imissed_base);
2320         stats_ctrl->imissed = 0;
2321 free:
2322         rte_free(strings);
2323 }
2324
2325 /**
2326  * Set the reg_mr and dereg_mr call backs
2327  *
2328  * @param reg_mr_cb[out]
2329  *   Pointer to reg_mr func
2330  * @param dereg_mr_cb[out]
2331  *   Pointer to dereg_mr func
2332  *
2333  */
2334 void
2335 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
2336                       mlx5_dereg_mr_t *dereg_mr_cb)
2337 {
2338         *reg_mr_cb = mlx5_common_verbs_reg_mr;
2339         *dereg_mr_cb = mlx5_common_verbs_dereg_mr;
2340 }
2341
2342 const struct eth_dev_ops mlx5_os_dev_ops = {
2343         .dev_configure = mlx5_dev_configure,
2344         .dev_start = mlx5_dev_start,
2345         .dev_stop = mlx5_dev_stop,
2346         .dev_set_link_down = mlx5_set_link_down,
2347         .dev_set_link_up = mlx5_set_link_up,
2348         .dev_close = mlx5_dev_close,
2349         .promiscuous_enable = mlx5_promiscuous_enable,
2350         .promiscuous_disable = mlx5_promiscuous_disable,
2351         .allmulticast_enable = mlx5_allmulticast_enable,
2352         .allmulticast_disable = mlx5_allmulticast_disable,
2353         .link_update = mlx5_link_update,
2354         .stats_get = mlx5_stats_get,
2355         .stats_reset = mlx5_stats_reset,
2356         .xstats_get = mlx5_xstats_get,
2357         .xstats_reset = mlx5_xstats_reset,
2358         .xstats_get_names = mlx5_xstats_get_names,
2359         .fw_version_get = mlx5_fw_version_get,
2360         .dev_infos_get = mlx5_dev_infos_get,
2361         .read_clock = mlx5_read_clock,
2362         .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2363         .vlan_filter_set = mlx5_vlan_filter_set,
2364         .rx_queue_setup = mlx5_rx_queue_setup,
2365         .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2366         .tx_queue_setup = mlx5_tx_queue_setup,
2367         .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2368         .rx_queue_release = mlx5_rx_queue_release,
2369         .tx_queue_release = mlx5_tx_queue_release,
2370         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2371         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2372         .mac_addr_remove = mlx5_mac_addr_remove,
2373         .mac_addr_add = mlx5_mac_addr_add,
2374         .mac_addr_set = mlx5_mac_addr_set,
2375         .set_mc_addr_list = mlx5_set_mc_addr_list,
2376         .mtu_set = mlx5_dev_set_mtu,
2377         .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2378         .vlan_offload_set = mlx5_vlan_offload_set,
2379         .reta_update = mlx5_dev_rss_reta_update,
2380         .reta_query = mlx5_dev_rss_reta_query,
2381         .rss_hash_update = mlx5_rss_hash_update,
2382         .rss_hash_conf_get = mlx5_rss_hash_conf_get,
2383         .filter_ctrl = mlx5_dev_filter_ctrl,
2384         .rx_descriptor_status = mlx5_rx_descriptor_status,
2385         .tx_descriptor_status = mlx5_tx_descriptor_status,
2386         .rxq_info_get = mlx5_rxq_info_get,
2387         .txq_info_get = mlx5_txq_info_get,
2388         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2389         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2390         .rx_queue_count = mlx5_rx_queue_count,
2391         .rx_queue_intr_enable = mlx5_rx_intr_enable,
2392         .rx_queue_intr_disable = mlx5_rx_intr_disable,
2393         .is_removed = mlx5_is_removed,
2394         .udp_tunnel_port_add  = mlx5_udp_tunnel_port_add,
2395         .get_module_info = mlx5_get_module_info,
2396         .get_module_eeprom = mlx5_get_module_eeprom,
2397         .hairpin_cap_get = mlx5_hairpin_cap_get,
2398         .mtr_ops_get = mlx5_flow_meter_ops_get,
2399 };
2400
2401 /* Available operations from secondary process. */
2402 const struct eth_dev_ops mlx5_os_dev_sec_ops = {
2403         .stats_get = mlx5_stats_get,
2404         .stats_reset = mlx5_stats_reset,
2405         .xstats_get = mlx5_xstats_get,
2406         .xstats_reset = mlx5_xstats_reset,
2407         .xstats_get_names = mlx5_xstats_get_names,
2408         .fw_version_get = mlx5_fw_version_get,
2409         .dev_infos_get = mlx5_dev_infos_get,
2410         .rx_descriptor_status = mlx5_rx_descriptor_status,
2411         .tx_descriptor_status = mlx5_tx_descriptor_status,
2412         .rxq_info_get = mlx5_rxq_info_get,
2413         .txq_info_get = mlx5_txq_info_get,
2414         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2415         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2416         .get_module_info = mlx5_get_module_info,
2417         .get_module_eeprom = mlx5_get_module_eeprom,
2418 };
2419
2420 /* Available operations in flow isolated mode. */
2421 const struct eth_dev_ops mlx5_os_dev_ops_isolate = {
2422         .dev_configure = mlx5_dev_configure,
2423         .dev_start = mlx5_dev_start,
2424         .dev_stop = mlx5_dev_stop,
2425         .dev_set_link_down = mlx5_set_link_down,
2426         .dev_set_link_up = mlx5_set_link_up,
2427         .dev_close = mlx5_dev_close,
2428         .promiscuous_enable = mlx5_promiscuous_enable,
2429         .promiscuous_disable = mlx5_promiscuous_disable,
2430         .allmulticast_enable = mlx5_allmulticast_enable,
2431         .allmulticast_disable = mlx5_allmulticast_disable,
2432         .link_update = mlx5_link_update,
2433         .stats_get = mlx5_stats_get,
2434         .stats_reset = mlx5_stats_reset,
2435         .xstats_get = mlx5_xstats_get,
2436         .xstats_reset = mlx5_xstats_reset,
2437         .xstats_get_names = mlx5_xstats_get_names,
2438         .fw_version_get = mlx5_fw_version_get,
2439         .dev_infos_get = mlx5_dev_infos_get,
2440         .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2441         .vlan_filter_set = mlx5_vlan_filter_set,
2442         .rx_queue_setup = mlx5_rx_queue_setup,
2443         .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2444         .tx_queue_setup = mlx5_tx_queue_setup,
2445         .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2446         .rx_queue_release = mlx5_rx_queue_release,
2447         .tx_queue_release = mlx5_tx_queue_release,
2448         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2449         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2450         .mac_addr_remove = mlx5_mac_addr_remove,
2451         .mac_addr_add = mlx5_mac_addr_add,
2452         .mac_addr_set = mlx5_mac_addr_set,
2453         .set_mc_addr_list = mlx5_set_mc_addr_list,
2454         .mtu_set = mlx5_dev_set_mtu,
2455         .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2456         .vlan_offload_set = mlx5_vlan_offload_set,
2457         .filter_ctrl = mlx5_dev_filter_ctrl,
2458         .rx_descriptor_status = mlx5_rx_descriptor_status,
2459         .tx_descriptor_status = mlx5_tx_descriptor_status,
2460         .rxq_info_get = mlx5_rxq_info_get,
2461         .txq_info_get = mlx5_txq_info_get,
2462         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2463         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2464         .rx_queue_intr_enable = mlx5_rx_intr_enable,
2465         .rx_queue_intr_disable = mlx5_rx_intr_disable,
2466         .is_removed = mlx5_is_removed,
2467         .get_module_info = mlx5_get_module_info,
2468         .get_module_eeprom = mlx5_get_module_eeprom,
2469         .hairpin_cap_get = mlx5_hairpin_cap_get,
2470         .mtr_ops_get = mlx5_flow_meter_ops_get,
2471 };