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         .mtu_set = mlx5_dev_set_mtu,
 166         .reta_update = mlx5_dev_rss_reta_update,
 167         .reta_query = mlx5_dev_rss_reta_query,
 168         .rss_hash_update = mlx5_rss_hash_update,
 169         .rss_hash_conf_get = mlx5_rss_hash_conf_get,
 170 };
 171
 172 static struct {
 173         struct rte_pci_addr pci_addr; /* associated PCI address */
 174         uint32_t ports; /* physical ports bitfield. */
 175 } mlx5_dev[32];
 176
 177 /**
 178  * Get device index in mlx5_dev[] from PCI bus address.
 179  *
 180  * @param[in] pci_addr
 181  *   PCI bus address to look for.
 182  *
 183  * @return
 184  *   mlx5_dev[] index on success, -1 on failure.
 185  */
 186 static int
 187 mlx5_dev_idx(struct rte_pci_addr *pci_addr)
 188 {
 189         unsigned int i;
 190         int ret = -1;
 191
 192         assert(pci_addr != NULL);
 193         for (i = 0; (i != RTE_DIM(mlx5_dev)); ++i) {
 194                 if ((mlx5_dev[i].pci_addr.domain == pci_addr->domain) &&
 195                     (mlx5_dev[i].pci_addr.bus == pci_addr->bus) &&
 196                     (mlx5_dev[i].pci_addr.devid == pci_addr->devid) &&
 197                     (mlx5_dev[i].pci_addr.function == pci_addr->function))
 198                         return i;
 199                 if ((mlx5_dev[i].ports == 0) && (ret == -1))
 200                         ret = i;
 201         }
 202         return ret;
 203 }
 204
 205 static struct eth_driver mlx5_driver;
 206
 207 /**
 208  * DPDK callback to register a PCI device.
 209  *
 210  * This function creates an Ethernet device for each port of a given
 211  * PCI device.
 212  *
 213  * @param[in] pci_drv
 214  *   PCI driver structure (mlx5_driver).
 215  * @param[in] pci_dev
 216  *   PCI device information.
 217  *
 218  * @return
 219  *   0 on success, negative errno value on failure.
 220  */
 221 static int
 222 mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 223 {
 224         struct ibv_device **list;
 225         struct ibv_device *ibv_dev;
 226         int err = 0;
 227         struct ibv_context *attr_ctx = NULL;
 228         struct ibv_device_attr device_attr;
 229         unsigned int vf;
 230         int idx;
 231         int i;
 232
 233         (void)pci_drv;
 234         assert(pci_drv == &mlx5_driver.pci_drv);
 235         /* Get mlx5_dev[] index. */
 236         idx = mlx5_dev_idx(&pci_dev->addr);
 237         if (idx == -1) {
 238                 ERROR("this driver cannot support any more adapters");
 239                 return -ENOMEM;
 240         }
 241         DEBUG("using driver device index %d", idx);
 242
 243         /* Save PCI address. */
 244         mlx5_dev[idx].pci_addr = pci_dev->addr;
 245         list = ibv_get_device_list(&i);
 246         if (list == NULL) {
 247                 assert(errno);
 248                 if (errno == ENOSYS) {
 249                         WARN("cannot list devices, is ib_uverbs loaded?");
 250                         return 0;
 251                 }
 252                 return -errno;
 253         }
 254         assert(i >= 0);
 255         /*
 256          * For each listed device, check related sysfs entry against
 257          * the provided PCI ID.
 258          */
 259         while (i != 0) {
 260                 struct rte_pci_addr pci_addr;
 261
 262                 --i;
 263                 DEBUG("checking device \"%s\"", list[i]->name);
 264                 if (mlx5_ibv_device_to_pci_addr(list[i], &pci_addr))
 265                         continue;
 266                 if ((pci_dev->addr.domain != pci_addr.domain) ||
 267                     (pci_dev->addr.bus != pci_addr.bus) ||
 268                     (pci_dev->addr.devid != pci_addr.devid) ||
 269                     (pci_dev->addr.function != pci_addr.function))
 270                         continue;
 271                 vf = ((pci_dev->id.device_id ==
 272                        PCI_DEVICE_ID_MELLANOX_CONNECTX4VF) ||
 273                       (pci_dev->id.device_id ==
 274                        PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF));
 275                 INFO("PCI information matches, using device \"%s\" (VF: %s)",
 276                      list[i]->name, (vf ? "true" : "false"));
 277                 attr_ctx = ibv_open_device(list[i]);
 278                 err = errno;
 279                 break;
 280         }
 281         if (attr_ctx == NULL) {
 282                 ibv_free_device_list(list);
 283                 switch (err) {
 284                 case 0:
 285                         WARN("cannot access device, is mlx5_ib loaded?");
 286                         return 0;
 287                 case EINVAL:
 288                         WARN("cannot use device, are drivers up to date?");
 289                         return 0;
 290                 }
 291                 assert(err > 0);
 292                 return -err;
 293         }
 294         ibv_dev = list[i];
 295
 296         DEBUG("device opened");
 297         if (ibv_query_device(attr_ctx, &device_attr))
 298                 goto error;
 299         INFO("%u port(s) detected", device_attr.phys_port_cnt);
 300
 301         for (i = 0; i < device_attr.phys_port_cnt; i++) {
 302                 uint32_t port = i + 1; /* ports are indexed from one */
 303                 uint32_t test = (1 << i);
 304                 struct ibv_context *ctx = NULL;
 305                 struct ibv_port_attr port_attr;
 306                 struct ibv_pd *pd = NULL;
 307                 struct priv *priv = NULL;
 308                 struct rte_eth_dev *eth_dev;
 309 #ifdef HAVE_EXP_QUERY_DEVICE
 310                 struct ibv_exp_device_attr exp_device_attr;
 311 #endif /* HAVE_EXP_QUERY_DEVICE */
 312                 struct ether_addr mac;
 313
 314 #ifdef HAVE_EXP_QUERY_DEVICE
 315                 exp_device_attr.comp_mask =
 316                         IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS |
 317                         IBV_EXP_DEVICE_ATTR_RX_HASH;
 318 #endif /* HAVE_EXP_QUERY_DEVICE */
 319
 320                 DEBUG("using port %u (%08" PRIx32 ")", port, test);
 321
 322                 ctx = ibv_open_device(ibv_dev);
 323                 if (ctx == NULL)
 324                         goto port_error;
 325
 326                 /* Check port status. */
 327                 err = ibv_query_port(ctx, port, &port_attr);
 328                 if (err) {
 329                         ERROR("port query failed: %s", strerror(err));
 330                         goto port_error;
 331                 }
 332                 if (port_attr.state != IBV_PORT_ACTIVE)
 333                         DEBUG("port %d is not active: \"%s\" (%d)",
 334                               port, ibv_port_state_str(port_attr.state),
 335                               port_attr.state);
 336
 337                 /* Allocate protection domain. */
 338                 pd = ibv_alloc_pd(ctx);
 339                 if (pd == NULL) {
 340                         ERROR("PD allocation failure");
 341                         err = ENOMEM;
 342                         goto port_error;
 343                 }
 344
 345                 mlx5_dev[idx].ports |= test;
 346
 347                 /* from rte_ethdev.c */
 348                 priv = rte_zmalloc("ethdev private structure",
 349                                    sizeof(*priv),
 350                                    RTE_CACHE_LINE_SIZE);
 351                 if (priv == NULL) {
 352                         ERROR("priv allocation failure");
 353                         err = ENOMEM;
 354                         goto port_error;
 355                 }
 356
 357                 priv->ctx = ctx;
 358                 priv->device_attr = device_attr;
 359                 priv->port = port;
 360                 priv->pd = pd;
 361                 priv->mtu = ETHER_MTU;
 362 #ifdef HAVE_EXP_QUERY_DEVICE
 363                 if (ibv_exp_query_device(ctx, &exp_device_attr)) {
 364                         ERROR("ibv_exp_query_device() failed");
 365                         goto port_error;
 366                 }
 367
 368                 priv->hw_csum =
 369                         ((exp_device_attr.exp_device_cap_flags &
 370                           IBV_EXP_DEVICE_RX_CSUM_TCP_UDP_PKT) &&
 371                          (exp_device_attr.exp_device_cap_flags &
 372                           IBV_EXP_DEVICE_RX_CSUM_IP_PKT));
 373                 DEBUG("checksum offloading is %ssupported",
 374                       (priv->hw_csum ? "" : "not "));
 375
 376                 priv->hw_csum_l2tun = !!(exp_device_attr.exp_device_cap_flags &
 377                                          IBV_EXP_DEVICE_VXLAN_SUPPORT);
 378                 DEBUG("L2 tunnel checksum offloads are %ssupported",
 379                       (priv->hw_csum_l2tun ? "" : "not "));
 380
 381                 priv->ind_table_max_size = exp_device_attr.rx_hash_caps.max_rwq_indirection_table_size;
 382                 /* Remove this check once DPDK supports larger/variable
 383                  * indirection tables. */
 384                 if (priv->ind_table_max_size > (unsigned int)RSS_INDIRECTION_TABLE_SIZE)
 385                         priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
 386                 DEBUG("maximum RX indirection table size is %u",
 387                       priv->ind_table_max_size);
 388
 389 #else /* HAVE_EXP_QUERY_DEVICE */
 390                 priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
 391 #endif /* HAVE_EXP_QUERY_DEVICE */
 392
 393                 priv->vf = vf;
 394                 /* Allocate and register default RSS hash keys. */
 395                 priv->rss_conf = rte_calloc(__func__, hash_rxq_init_n,
 396                                             sizeof((*priv->rss_conf)[0]), 0);
 397                 if (priv->rss_conf == NULL) {
 398                         err = ENOMEM;
 399                         goto port_error;
 400                 }
 401                 err = rss_hash_rss_conf_new_key(priv,
 402                                                 rss_hash_default_key,
 403                                                 rss_hash_default_key_len,
 404                                                 ETH_RSS_PROTO_MASK);
 405                 if (err)
 406                         goto port_error;
 407                 /* Configure the first MAC address by default. */
 408                 if (priv_get_mac(priv, &mac.addr_bytes)) {
 409                         ERROR("cannot get MAC address, is mlx5_en loaded?"
 410                               " (errno: %s)", strerror(errno));
 411                         goto port_error;
 412                 }
 413                 INFO("port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
 414                      priv->port,
 415                      mac.addr_bytes[0], mac.addr_bytes[1],
 416                      mac.addr_bytes[2], mac.addr_bytes[3],
 417                      mac.addr_bytes[4], mac.addr_bytes[5]);
 418                 /* Register MAC and broadcast addresses. */
 419                 claim_zero(priv_mac_addr_add(priv, 0,
 420                                              (const uint8_t (*)[ETHER_ADDR_LEN])
 421                                              mac.addr_bytes));
 422                 claim_zero(priv_mac_addr_add(priv, (RTE_DIM(priv->mac) - 1),
 423                                              &(const uint8_t [ETHER_ADDR_LEN])
 424                                              { "\xff\xff\xff\xff\xff\xff" }));
 425 #ifndef NDEBUG
 426                 {
 427                         char ifname[IF_NAMESIZE];
 428
 429                         if (priv_get_ifname(priv, &ifname) == 0)
 430                                 DEBUG("port %u ifname is \"%s\"",
 431                                       priv->port, ifname);
 432                         else
 433                                 DEBUG("port %u ifname is unknown", priv->port);
 434                 }
 435 #endif
 436                 /* Get actual MTU if possible. */
 437                 priv_get_mtu(priv, &priv->mtu);
 438                 DEBUG("port %u MTU is %u", priv->port, priv->mtu);
 439
 440                 /* from rte_ethdev.c */
 441                 {
 442                         char name[RTE_ETH_NAME_MAX_LEN];
 443
 444                         snprintf(name, sizeof(name), "%s port %u",
 445                                  ibv_get_device_name(ibv_dev), port);
 446                         eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI);
 447                 }
 448                 if (eth_dev == NULL) {
 449                         ERROR("can not allocate rte ethdev");
 450                         err = ENOMEM;
 451                         goto port_error;
 452                 }
 453
 454                 eth_dev->data->dev_private = priv;
 455                 eth_dev->pci_dev = pci_dev;
 456
 457                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 458
 459                 eth_dev->driver = &mlx5_driver;
 460                 eth_dev->data->rx_mbuf_alloc_failed = 0;
 461                 eth_dev->data->mtu = ETHER_MTU;
 462
 463                 priv->dev = eth_dev;
 464                 eth_dev->dev_ops = &mlx5_dev_ops;
 465                 eth_dev->data->mac_addrs = priv->mac;
 466                 TAILQ_INIT(&eth_dev->link_intr_cbs);
 467
 468                 /* Bring Ethernet device up. */
 469                 DEBUG("forcing Ethernet interface up");
 470                 priv_set_flags(priv, ~IFF_UP, IFF_UP);
 471                 continue;
 472
 473 port_error:
 474                 rte_free(priv->rss_conf);
 475                 rte_free(priv);
 476                 if (pd)
 477                         claim_zero(ibv_dealloc_pd(pd));
 478                 if (ctx)
 479                         claim_zero(ibv_close_device(ctx));
 480                 break;
 481         }
 482
 483         /*
 484          * XXX if something went wrong in the loop above, there is a resource
 485          * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as
 486          * long as the dpdk does not provide a way to deallocate a ethdev and a
 487          * way to enumerate the registered ethdevs to free the previous ones.
 488          */
 489
 490         /* no port found, complain */
 491         if (!mlx5_dev[idx].ports) {
 492                 err = ENODEV;
 493                 goto error;
 494         }
 495
 496 error:
 497         if (attr_ctx)
 498                 claim_zero(ibv_close_device(attr_ctx));
 499         if (list)
 500                 ibv_free_device_list(list);
 501         assert(err >= 0);
 502         return -err;
 503 }
 504
 505 static const struct rte_pci_id mlx5_pci_id_map[] = {
 506         {
 507                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 508                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4,
 509                 .subsystem_vendor_id = PCI_ANY_ID,
 510                 .subsystem_device_id = PCI_ANY_ID
 511         },
 512         {
 513                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 514                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4VF,
 515                 .subsystem_vendor_id = PCI_ANY_ID,
 516                 .subsystem_device_id = PCI_ANY_ID
 517         },
 518         {
 519                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 520                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LX,
 521                 .subsystem_vendor_id = PCI_ANY_ID,
 522                 .subsystem_device_id = PCI_ANY_ID
 523         },
 524         {
 525                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 526                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF,
 527                 .subsystem_vendor_id = PCI_ANY_ID,
 528                 .subsystem_device_id = PCI_ANY_ID
 529         },
 530         {
 531                 .vendor_id = 0
 532         }
 533 };
 534
 535 static struct eth_driver mlx5_driver = {
 536         .pci_drv = {
 537                 .name = MLX5_DRIVER_NAME,
 538                 .id_table = mlx5_pci_id_map,
 539                 .devinit = mlx5_pci_devinit,
 540                 .drv_flags = RTE_PCI_DRV_INTR_LSC,
 541         },
 542         .dev_private_size = sizeof(struct priv)
 543 };
 544
 545 /**
 546  * Driver initialization routine.
 547  */
 548 static int
 549 rte_mlx5_pmd_init(const char *name, const char *args)
 550 {
 551         (void)name;
 552         (void)args;
 553         /*
 554          * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
 555          * huge pages. Calling ibv_fork_init() during init allows
 556          * applications to use fork() safely for purposes other than
 557          * using this PMD, which is not supported in forked processes.
 558          */
 559         setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
 560         ibv_fork_init();
 561         rte_eal_pci_register(&mlx5_driver.pci_drv);
 562         return 0;
 563 }
 564
 565 static struct rte_driver rte_mlx5_driver = {
 566         .type = PMD_PDEV,
 567         .name = MLX5_DRIVER_NAME,
 568         .init = rte_mlx5_pmd_init,
 569 };
 570
 571 PMD_REGISTER_DRIVER(rte_mlx5_driver)