drivers/net/mlx5/mlx5.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright 2015 6WIND S.A.
   5  *   Copyright 2015 Mellanox.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of 6WIND S.A. nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stddef.h>
  35 #include <unistd.h>
  36 #include <string.h>
  37 #include <assert.h>
  38 #include <stdint.h>
  39 #include <stdlib.h>
  40 #include <net/if.h>
  41
  42 /* Verbs header. */
  43 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
  44 #ifdef PEDANTIC
  45 #pragma GCC diagnostic ignored "-pedantic"
  46 #endif
  47 #include <infiniband/verbs.h>
  48 #ifdef PEDANTIC
  49 #pragma GCC diagnostic error "-pedantic"
  50 #endif
  51
  52 /* DPDK headers don't like -pedantic. */
  53 #ifdef PEDANTIC
  54 #pragma GCC diagnostic ignored "-pedantic"
  55 #endif
  56 #include <rte_malloc.h>
  57 #include <rte_ethdev.h>
  58 #include <rte_pci.h>
  59 #include <rte_common.h>
  60 #ifdef PEDANTIC
  61 #pragma GCC diagnostic error "-pedantic"
  62 #endif
  63
  64 #include "mlx5.h"
  65 #include "mlx5_utils.h"
  66 #include "mlx5_rxtx.h"
  67 #include "mlx5_autoconf.h"
  68 #include "mlx5_defs.h"
  69
  70 /**
  71  * DPDK callback to close the device.
  72  *
  73  * Destroy all queues and objects, free memory.
  74  *
  75  * @param dev
  76  *   Pointer to Ethernet device structure.
  77  */
  78 static void
  79 mlx5_dev_close(struct rte_eth_dev *dev)
  80 {
  81         struct priv *priv = dev->data->dev_private;
  82         void *tmp;
  83         unsigned int i;
  84
  85         priv_lock(priv);
  86         DEBUG("%p: closing device \"%s\"",
  87               (void *)dev,
  88               ((priv->ctx != NULL) ? priv->ctx->device->name : ""));
  89         /* In case mlx5_dev_stop() has not been called. */
  90         priv_dev_interrupt_handler_uninstall(priv, dev);
  91         priv_allmulticast_disable(priv);
  92         priv_promiscuous_disable(priv);
  93         priv_mac_addrs_disable(priv);
  94         priv_destroy_hash_rxqs(priv);
  95         /* Prevent crashes when queues are still in use. */
  96         dev->rx_pkt_burst = removed_rx_burst;
  97         dev->tx_pkt_burst = removed_tx_burst;
  98         if (priv->rxqs != NULL) {
  99                 /* XXX race condition if mlx5_rx_burst() is still running. */
 100                 usleep(1000);
 101                 for (i = 0; (i != priv->rxqs_n); ++i) {
 102                         tmp = (*priv->rxqs)[i];
 103                         if (tmp == NULL)
 104                                 continue;
 105                         (*priv->rxqs)[i] = NULL;
 106                         rxq_cleanup(tmp);
 107                         rte_free(tmp);
 108                 }
 109                 priv->rxqs_n = 0;
 110                 priv->rxqs = NULL;
 111         }
 112         if (priv->txqs != NULL) {
 113                 /* XXX race condition if mlx5_tx_burst() is still running. */
 114                 usleep(1000);
 115                 for (i = 0; (i != priv->txqs_n); ++i) {
 116                         tmp = (*priv->txqs)[i];
 117                         if (tmp == NULL)
 118                                 continue;
 119                         (*priv->txqs)[i] = NULL;
 120                         txq_cleanup(tmp);
 121                         rte_free(tmp);
 122                 }
 123                 priv->txqs_n = 0;
 124                 priv->txqs = NULL;
 125         }
 126         if (priv->pd != NULL) {
 127                 assert(priv->ctx != NULL);
 128                 claim_zero(ibv_dealloc_pd(priv->pd));
 129                 claim_zero(ibv_close_device(priv->ctx));
 130         } else
 131                 assert(priv->ctx == NULL);
 132         if (priv->rss_conf != NULL) {
 133                 for (i = 0; (i != hash_rxq_init_n); ++i)
 134                         rte_free((*priv->rss_conf)[i]);
 135                 rte_free(priv->rss_conf);
 136         }
 137         if (priv->reta_idx != NULL)
 138                 rte_free(priv->reta_idx);
 139         priv_unlock(priv);
 140         memset(priv, 0, sizeof(*priv));
 141 }
 142
 143 static const struct eth_dev_ops mlx5_dev_ops = {
 144         .dev_configure = mlx5_dev_configure,
 145         .dev_start = mlx5_dev_start,
 146         .dev_stop = mlx5_dev_stop,
 147         .dev_close = mlx5_dev_close,
 148         .promiscuous_enable = mlx5_promiscuous_enable,
 149         .promiscuous_disable = mlx5_promiscuous_disable,
 150         .allmulticast_enable = mlx5_allmulticast_enable,
 151         .allmulticast_disable = mlx5_allmulticast_disable,
 152         .link_update = mlx5_link_update,
 153         .stats_get = mlx5_stats_get,
 154         .stats_reset = mlx5_stats_reset,
 155         .dev_infos_get = mlx5_dev_infos_get,
 156         .vlan_filter_set = mlx5_vlan_filter_set,
 157         .rx_queue_setup = mlx5_rx_queue_setup,
 158         .tx_queue_setup = mlx5_tx_queue_setup,
 159         .rx_queue_release = mlx5_rx_queue_release,
 160         .tx_queue_release = mlx5_tx_queue_release,
 161         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
 162         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
 163         .mac_addr_remove = mlx5_mac_addr_remove,
 164         .mac_addr_add = mlx5_mac_addr_add,
 165         .mac_addr_set = mlx5_mac_addr_set,
 166         .mtu_set = mlx5_dev_set_mtu,
 167         .reta_update = mlx5_dev_rss_reta_update,
 168         .reta_query = mlx5_dev_rss_reta_query,
 169         .rss_hash_update = mlx5_rss_hash_update,
 170         .rss_hash_conf_get = mlx5_rss_hash_conf_get,
 171 };
 172
 173 static struct {
 174         struct rte_pci_addr pci_addr; /* associated PCI address */
 175         uint32_t ports; /* physical ports bitfield. */
 176 } mlx5_dev[32];
 177
 178 /**
 179  * Get device index in mlx5_dev[] from PCI bus address.
 180  *
 181  * @param[in] pci_addr
 182  *   PCI bus address to look for.
 183  *
 184  * @return
 185  *   mlx5_dev[] index on success, -1 on failure.
 186  */
 187 static int
 188 mlx5_dev_idx(struct rte_pci_addr *pci_addr)
 189 {
 190         unsigned int i;
 191         int ret = -1;
 192
 193         assert(pci_addr != NULL);
 194         for (i = 0; (i != RTE_DIM(mlx5_dev)); ++i) {
 195                 if ((mlx5_dev[i].pci_addr.domain == pci_addr->domain) &&
 196                     (mlx5_dev[i].pci_addr.bus == pci_addr->bus) &&
 197                     (mlx5_dev[i].pci_addr.devid == pci_addr->devid) &&
 198                     (mlx5_dev[i].pci_addr.function == pci_addr->function))
 199                         return i;
 200                 if ((mlx5_dev[i].ports == 0) && (ret == -1))
 201                         ret = i;
 202         }
 203         return ret;
 204 }
 205
 206 static struct eth_driver mlx5_driver;
 207
 208 /**
 209  * DPDK callback to register a PCI device.
 210  *
 211  * This function creates an Ethernet device for each port of a given
 212  * PCI device.
 213  *
 214  * @param[in] pci_drv
 215  *   PCI driver structure (mlx5_driver).
 216  * @param[in] pci_dev
 217  *   PCI device information.
 218  *
 219  * @return
 220  *   0 on success, negative errno value on failure.
 221  */
 222 static int
 223 mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 224 {
 225         struct ibv_device **list;
 226         struct ibv_device *ibv_dev;
 227         int err = 0;
 228         struct ibv_context *attr_ctx = NULL;
 229         struct ibv_device_attr device_attr;
 230         unsigned int vf;
 231         int idx;
 232         int i;
 233
 234         (void)pci_drv;
 235         assert(pci_drv == &mlx5_driver.pci_drv);
 236         /* Get mlx5_dev[] index. */
 237         idx = mlx5_dev_idx(&pci_dev->addr);
 238         if (idx == -1) {
 239                 ERROR("this driver cannot support any more adapters");
 240                 return -ENOMEM;
 241         }
 242         DEBUG("using driver device index %d", idx);
 243
 244         /* Save PCI address. */
 245         mlx5_dev[idx].pci_addr = pci_dev->addr;
 246         list = ibv_get_device_list(&i);
 247         if (list == NULL) {
 248                 assert(errno);
 249                 if (errno == ENOSYS) {
 250                         WARN("cannot list devices, is ib_uverbs loaded?");
 251                         return 0;
 252                 }
 253                 return -errno;
 254         }
 255         assert(i >= 0);
 256         /*
 257          * For each listed device, check related sysfs entry against
 258          * the provided PCI ID.
 259          */
 260         while (i != 0) {
 261                 struct rte_pci_addr pci_addr;
 262
 263                 --i;
 264                 DEBUG("checking device \"%s\"", list[i]->name);
 265                 if (mlx5_ibv_device_to_pci_addr(list[i], &pci_addr))
 266                         continue;
 267                 if ((pci_dev->addr.domain != pci_addr.domain) ||
 268                     (pci_dev->addr.bus != pci_addr.bus) ||
 269                     (pci_dev->addr.devid != pci_addr.devid) ||
 270                     (pci_dev->addr.function != pci_addr.function))
 271                         continue;
 272                 vf = ((pci_dev->id.device_id ==
 273                        PCI_DEVICE_ID_MELLANOX_CONNECTX4VF) ||
 274                       (pci_dev->id.device_id ==
 275                        PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF));
 276                 INFO("PCI information matches, using device \"%s\" (VF: %s)",
 277                      list[i]->name, (vf ? "true" : "false"));
 278                 attr_ctx = ibv_open_device(list[i]);
 279                 err = errno;
 280                 break;
 281         }
 282         if (attr_ctx == NULL) {
 283                 ibv_free_device_list(list);
 284                 switch (err) {
 285                 case 0:
 286                         WARN("cannot access device, is mlx5_ib loaded?");
 287                         return 0;
 288                 case EINVAL:
 289                         WARN("cannot use device, are drivers up to date?");
 290                         return 0;
 291                 }
 292                 assert(err > 0);
 293                 return -err;
 294         }
 295         ibv_dev = list[i];
 296
 297         DEBUG("device opened");
 298         if (ibv_query_device(attr_ctx, &device_attr))
 299                 goto error;
 300         INFO("%u port(s) detected", device_attr.phys_port_cnt);
 301
 302         for (i = 0; i < device_attr.phys_port_cnt; i++) {
 303                 uint32_t port = i + 1; /* ports are indexed from one */
 304                 uint32_t test = (1 << i);
 305                 struct ibv_context *ctx = NULL;
 306                 struct ibv_port_attr port_attr;
 307                 struct ibv_pd *pd = NULL;
 308                 struct priv *priv = NULL;
 309                 struct rte_eth_dev *eth_dev;
 310 #ifdef HAVE_EXP_QUERY_DEVICE
 311                 struct ibv_exp_device_attr exp_device_attr;
 312 #endif /* HAVE_EXP_QUERY_DEVICE */
 313                 struct ether_addr mac;
 314
 315 #ifdef HAVE_EXP_QUERY_DEVICE
 316                 exp_device_attr.comp_mask =
 317                         IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS |
 318                         IBV_EXP_DEVICE_ATTR_RX_HASH;
 319 #endif /* HAVE_EXP_QUERY_DEVICE */
 320
 321                 DEBUG("using port %u (%08" PRIx32 ")", port, test);
 322
 323                 ctx = ibv_open_device(ibv_dev);
 324                 if (ctx == NULL)
 325                         goto port_error;
 326
 327                 /* Check port status. */
 328                 err = ibv_query_port(ctx, port, &port_attr);
 329                 if (err) {
 330                         ERROR("port query failed: %s", strerror(err));
 331                         goto port_error;
 332                 }
 333                 if (port_attr.state != IBV_PORT_ACTIVE)
 334                         DEBUG("port %d is not active: \"%s\" (%d)",
 335                               port, ibv_port_state_str(port_attr.state),
 336                               port_attr.state);
 337
 338                 /* Allocate protection domain. */
 339                 pd = ibv_alloc_pd(ctx);
 340                 if (pd == NULL) {
 341                         ERROR("PD allocation failure");
 342                         err = ENOMEM;
 343                         goto port_error;
 344                 }
 345
 346                 mlx5_dev[idx].ports |= test;
 347
 348                 /* from rte_ethdev.c */
 349                 priv = rte_zmalloc("ethdev private structure",
 350                                    sizeof(*priv),
 351                                    RTE_CACHE_LINE_SIZE);
 352                 if (priv == NULL) {
 353                         ERROR("priv allocation failure");
 354                         err = ENOMEM;
 355                         goto port_error;
 356                 }
 357
 358                 priv->ctx = ctx;
 359                 priv->device_attr = device_attr;
 360                 priv->port = port;
 361                 priv->pd = pd;
 362                 priv->mtu = ETHER_MTU;
 363 #ifdef HAVE_EXP_QUERY_DEVICE
 364                 if (ibv_exp_query_device(ctx, &exp_device_attr)) {
 365                         ERROR("ibv_exp_query_device() failed");
 366                         goto port_error;
 367                 }
 368
 369                 priv->hw_csum =
 370                         ((exp_device_attr.exp_device_cap_flags &
 371                           IBV_EXP_DEVICE_RX_CSUM_TCP_UDP_PKT) &&
 372                          (exp_device_attr.exp_device_cap_flags &
 373                           IBV_EXP_DEVICE_RX_CSUM_IP_PKT));
 374                 DEBUG("checksum offloading is %ssupported",
 375                       (priv->hw_csum ? "" : "not "));
 376
 377                 priv->hw_csum_l2tun = !!(exp_device_attr.exp_device_cap_flags &
 378                                          IBV_EXP_DEVICE_VXLAN_SUPPORT);
 379                 DEBUG("L2 tunnel checksum offloads are %ssupported",
 380                       (priv->hw_csum_l2tun ? "" : "not "));
 381
 382                 priv->ind_table_max_size = exp_device_attr.rx_hash_caps.max_rwq_indirection_table_size;
 383                 /* Remove this check once DPDK supports larger/variable
 384                  * indirection tables. */
 385                 if (priv->ind_table_max_size > (unsigned int)RSS_INDIRECTION_TABLE_SIZE)
 386                         priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
 387                 DEBUG("maximum RX indirection table size is %u",
 388                       priv->ind_table_max_size);
 389
 390 #else /* HAVE_EXP_QUERY_DEVICE */
 391                 priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
 392 #endif /* HAVE_EXP_QUERY_DEVICE */
 393
 394                 priv->vf = vf;
 395                 /* Allocate and register default RSS hash keys. */
 396                 priv->rss_conf = rte_calloc(__func__, hash_rxq_init_n,
 397                                             sizeof((*priv->rss_conf)[0]), 0);
 398                 if (priv->rss_conf == NULL) {
 399                         err = ENOMEM;
 400                         goto port_error;
 401                 }
 402                 err = rss_hash_rss_conf_new_key(priv,
 403                                                 rss_hash_default_key,
 404                                                 rss_hash_default_key_len,
 405                                                 ETH_RSS_PROTO_MASK);
 406                 if (err)
 407                         goto port_error;
 408                 /* Configure the first MAC address by default. */
 409                 if (priv_get_mac(priv, &mac.addr_bytes)) {
 410                         ERROR("cannot get MAC address, is mlx5_en loaded?"
 411                               " (errno: %s)", strerror(errno));
 412                         goto port_error;
 413                 }
 414                 INFO("port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
 415                      priv->port,
 416                      mac.addr_bytes[0], mac.addr_bytes[1],
 417                      mac.addr_bytes[2], mac.addr_bytes[3],
 418                      mac.addr_bytes[4], mac.addr_bytes[5]);
 419                 /* Register MAC and broadcast addresses. */
 420                 claim_zero(priv_mac_addr_add(priv, 0,
 421                                              (const uint8_t (*)[ETHER_ADDR_LEN])
 422                                              mac.addr_bytes));
 423                 claim_zero(priv_mac_addr_add(priv, (RTE_DIM(priv->mac) - 1),
 424                                              &(const uint8_t [ETHER_ADDR_LEN])
 425                                              { "\xff\xff\xff\xff\xff\xff" }));
 426 #ifndef NDEBUG
 427                 {
 428                         char ifname[IF_NAMESIZE];
 429
 430                         if (priv_get_ifname(priv, &ifname) == 0)
 431                                 DEBUG("port %u ifname is \"%s\"",
 432                                       priv->port, ifname);
 433                         else
 434                                 DEBUG("port %u ifname is unknown", priv->port);
 435                 }
 436 #endif
 437                 /* Get actual MTU if possible. */
 438                 priv_get_mtu(priv, &priv->mtu);
 439                 DEBUG("port %u MTU is %u", priv->port, priv->mtu);
 440
 441                 /* from rte_ethdev.c */
 442                 {
 443                         char name[RTE_ETH_NAME_MAX_LEN];
 444
 445                         snprintf(name, sizeof(name), "%s port %u",
 446                                  ibv_get_device_name(ibv_dev), port);
 447                         eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI);
 448                 }
 449                 if (eth_dev == NULL) {
 450                         ERROR("can not allocate rte ethdev");
 451                         err = ENOMEM;
 452                         goto port_error;
 453                 }
 454
 455                 eth_dev->data->dev_private = priv;
 456                 eth_dev->pci_dev = pci_dev;
 457
 458                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 459
 460                 eth_dev->driver = &mlx5_driver;
 461                 eth_dev->data->rx_mbuf_alloc_failed = 0;
 462                 eth_dev->data->mtu = ETHER_MTU;
 463
 464                 priv->dev = eth_dev;
 465                 eth_dev->dev_ops = &mlx5_dev_ops;
 466                 eth_dev->data->mac_addrs = priv->mac;
 467                 TAILQ_INIT(&eth_dev->link_intr_cbs);
 468
 469                 /* Bring Ethernet device up. */
 470                 DEBUG("forcing Ethernet interface up");
 471                 priv_set_flags(priv, ~IFF_UP, IFF_UP);
 472                 continue;
 473
 474 port_error:
 475                 rte_free(priv->rss_conf);
 476                 rte_free(priv);
 477                 if (pd)
 478                         claim_zero(ibv_dealloc_pd(pd));
 479                 if (ctx)
 480                         claim_zero(ibv_close_device(ctx));
 481                 break;
 482         }
 483
 484         /*
 485          * XXX if something went wrong in the loop above, there is a resource
 486          * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as
 487          * long as the dpdk does not provide a way to deallocate a ethdev and a
 488          * way to enumerate the registered ethdevs to free the previous ones.
 489          */
 490
 491         /* no port found, complain */
 492         if (!mlx5_dev[idx].ports) {
 493                 err = ENODEV;
 494                 goto error;
 495         }
 496
 497 error:
 498         if (attr_ctx)
 499                 claim_zero(ibv_close_device(attr_ctx));
 500         if (list)
 501                 ibv_free_device_list(list);
 502         assert(err >= 0);
 503         return -err;
 504 }
 505
 506 static const struct rte_pci_id mlx5_pci_id_map[] = {
 507         {
 508                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 509                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4,
 510                 .subsystem_vendor_id = PCI_ANY_ID,
 511                 .subsystem_device_id = PCI_ANY_ID
 512         },
 513         {
 514                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 515                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4VF,
 516                 .subsystem_vendor_id = PCI_ANY_ID,
 517                 .subsystem_device_id = PCI_ANY_ID
 518         },
 519         {
 520                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 521                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LX,
 522                 .subsystem_vendor_id = PCI_ANY_ID,
 523                 .subsystem_device_id = PCI_ANY_ID
 524         },
 525         {
 526                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 527                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF,
 528                 .subsystem_vendor_id = PCI_ANY_ID,
 529                 .subsystem_device_id = PCI_ANY_ID
 530         },
 531         {
 532                 .vendor_id = 0
 533         }
 534 };
 535
 536 static struct eth_driver mlx5_driver = {
 537         .pci_drv = {
 538                 .name = MLX5_DRIVER_NAME,
 539                 .id_table = mlx5_pci_id_map,
 540                 .devinit = mlx5_pci_devinit,
 541                 .drv_flags = RTE_PCI_DRV_INTR_LSC,
 542         },
 543         .dev_private_size = sizeof(struct priv)
 544 };
 545
 546 /**
 547  * Driver initialization routine.
 548  */
 549 static int
 550 rte_mlx5_pmd_init(const char *name, const char *args)
 551 {
 552         (void)name;
 553         (void)args;
 554         /*
 555          * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
 556          * huge pages. Calling ibv_fork_init() during init allows
 557          * applications to use fork() safely for purposes other than
 558          * using this PMD, which is not supported in forked processes.
 559          */
 560         setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
 561         ibv_fork_init();
 562         rte_eal_pci_register(&mlx5_driver.pci_drv);
 563         return 0;
 564 }
 565
 566 static struct rte_driver rte_mlx5_driver = {
 567         .type = PMD_PDEV,
 568         .name = MLX5_DRIVER_NAME,
 569         .init = rte_mlx5_pmd_init,
 570 };
 571
 572 PMD_REGISTER_DRIVER(rte_mlx5_driver)