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_special_flow_disable(priv, HASH_RXQ_FLOW_TYPE_ALLMULTI);
  92         priv_special_flow_disable(priv, HASH_RXQ_FLOW_TYPE_PROMISC);
  93         priv_special_flow_disable(priv, HASH_RXQ_FLOW_TYPE_BROADCAST);
  94         priv_special_flow_disable(priv, HASH_RXQ_FLOW_TYPE_IPV6MULTI);
  95         priv_mac_addrs_disable(priv);
  96         priv_destroy_hash_rxqs(priv);
  97
  98         /* Remove flow director elements. */
  99         priv_fdir_disable(priv);
 100         priv_fdir_delete_filters_list(priv);
 101
 102         /* Prevent crashes when queues are still in use. */
 103         dev->rx_pkt_burst = removed_rx_burst;
 104         dev->tx_pkt_burst = removed_tx_burst;
 105         if (priv->rxqs != NULL) {
 106                 /* XXX race condition if mlx5_rx_burst() is still running. */
 107                 usleep(1000);
 108                 for (i = 0; (i != priv->rxqs_n); ++i) {
 109                         tmp = (*priv->rxqs)[i];
 110                         if (tmp == NULL)
 111                                 continue;
 112                         (*priv->rxqs)[i] = NULL;
 113                         rxq_cleanup(tmp);
 114                         rte_free(tmp);
 115                 }
 116                 priv->rxqs_n = 0;
 117                 priv->rxqs = NULL;
 118         }
 119         if (priv->txqs != NULL) {
 120                 /* XXX race condition if mlx5_tx_burst() is still running. */
 121                 usleep(1000);
 122                 for (i = 0; (i != priv->txqs_n); ++i) {
 123                         tmp = (*priv->txqs)[i];
 124                         if (tmp == NULL)
 125                                 continue;
 126                         (*priv->txqs)[i] = NULL;
 127                         txq_cleanup(tmp);
 128                         rte_free(tmp);
 129                 }
 130                 priv->txqs_n = 0;
 131                 priv->txqs = NULL;
 132         }
 133         if (priv->pd != NULL) {
 134                 assert(priv->ctx != NULL);
 135                 claim_zero(ibv_dealloc_pd(priv->pd));
 136                 claim_zero(ibv_close_device(priv->ctx));
 137         } else
 138                 assert(priv->ctx == NULL);
 139         if (priv->rss_conf != NULL) {
 140                 for (i = 0; (i != hash_rxq_init_n); ++i)
 141                         rte_free((*priv->rss_conf)[i]);
 142                 rte_free(priv->rss_conf);
 143         }
 144         if (priv->reta_idx != NULL)
 145                 rte_free(priv->reta_idx);
 146         priv_unlock(priv);
 147         memset(priv, 0, sizeof(*priv));
 148 }
 149
 150 static const struct eth_dev_ops mlx5_dev_ops = {
 151         .dev_configure = mlx5_dev_configure,
 152         .dev_start = mlx5_dev_start,
 153         .dev_stop = mlx5_dev_stop,
 154         .dev_close = mlx5_dev_close,
 155         .promiscuous_enable = mlx5_promiscuous_enable,
 156         .promiscuous_disable = mlx5_promiscuous_disable,
 157         .allmulticast_enable = mlx5_allmulticast_enable,
 158         .allmulticast_disable = mlx5_allmulticast_disable,
 159         .link_update = mlx5_link_update,
 160         .stats_get = mlx5_stats_get,
 161         .stats_reset = mlx5_stats_reset,
 162         .dev_infos_get = mlx5_dev_infos_get,
 163         .vlan_filter_set = mlx5_vlan_filter_set,
 164         .rx_queue_setup = mlx5_rx_queue_setup,
 165         .tx_queue_setup = mlx5_tx_queue_setup,
 166         .rx_queue_release = mlx5_rx_queue_release,
 167         .tx_queue_release = mlx5_tx_queue_release,
 168         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
 169         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
 170         .mac_addr_remove = mlx5_mac_addr_remove,
 171         .mac_addr_add = mlx5_mac_addr_add,
 172         .mac_addr_set = mlx5_mac_addr_set,
 173         .mtu_set = mlx5_dev_set_mtu,
 174 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 175         .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
 176         .vlan_offload_set = mlx5_vlan_offload_set,
 177 #endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 178         .reta_update = mlx5_dev_rss_reta_update,
 179         .reta_query = mlx5_dev_rss_reta_query,
 180         .rss_hash_update = mlx5_rss_hash_update,
 181         .rss_hash_conf_get = mlx5_rss_hash_conf_get,
 182 #ifdef MLX5_FDIR_SUPPORT
 183         .filter_ctrl = mlx5_dev_filter_ctrl,
 184 #endif /* MLX5_FDIR_SUPPORT */
 185 };
 186
 187 static struct {
 188         struct rte_pci_addr pci_addr; /* associated PCI address */
 189         uint32_t ports; /* physical ports bitfield. */
 190 } mlx5_dev[32];
 191
 192 /**
 193  * Get device index in mlx5_dev[] from PCI bus address.
 194  *
 195  * @param[in] pci_addr
 196  *   PCI bus address to look for.
 197  *
 198  * @return
 199  *   mlx5_dev[] index on success, -1 on failure.
 200  */
 201 static int
 202 mlx5_dev_idx(struct rte_pci_addr *pci_addr)
 203 {
 204         unsigned int i;
 205         int ret = -1;
 206
 207         assert(pci_addr != NULL);
 208         for (i = 0; (i != RTE_DIM(mlx5_dev)); ++i) {
 209                 if ((mlx5_dev[i].pci_addr.domain == pci_addr->domain) &&
 210                     (mlx5_dev[i].pci_addr.bus == pci_addr->bus) &&
 211                     (mlx5_dev[i].pci_addr.devid == pci_addr->devid) &&
 212                     (mlx5_dev[i].pci_addr.function == pci_addr->function))
 213                         return i;
 214                 if ((mlx5_dev[i].ports == 0) && (ret == -1))
 215                         ret = i;
 216         }
 217         return ret;
 218 }
 219
 220 static struct eth_driver mlx5_driver;
 221
 222 /**
 223  * DPDK callback to register a PCI device.
 224  *
 225  * This function creates an Ethernet device for each port of a given
 226  * PCI device.
 227  *
 228  * @param[in] pci_drv
 229  *   PCI driver structure (mlx5_driver).
 230  * @param[in] pci_dev
 231  *   PCI device information.
 232  *
 233  * @return
 234  *   0 on success, negative errno value on failure.
 235  */
 236 static int
 237 mlx5_pci_devinit(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
 238 {
 239         struct ibv_device **list;
 240         struct ibv_device *ibv_dev;
 241         int err = 0;
 242         struct ibv_context *attr_ctx = NULL;
 243         struct ibv_device_attr device_attr;
 244         unsigned int vf;
 245         int idx;
 246         int i;
 247
 248         (void)pci_drv;
 249         assert(pci_drv == &mlx5_driver.pci_drv);
 250         /* Get mlx5_dev[] index. */
 251         idx = mlx5_dev_idx(&pci_dev->addr);
 252         if (idx == -1) {
 253                 ERROR("this driver cannot support any more adapters");
 254                 return -ENOMEM;
 255         }
 256         DEBUG("using driver device index %d", idx);
 257
 258         /* Save PCI address. */
 259         mlx5_dev[idx].pci_addr = pci_dev->addr;
 260         list = ibv_get_device_list(&i);
 261         if (list == NULL) {
 262                 assert(errno);
 263                 if (errno == ENOSYS) {
 264                         WARN("cannot list devices, is ib_uverbs loaded?");
 265                         return 0;
 266                 }
 267                 return -errno;
 268         }
 269         assert(i >= 0);
 270         /*
 271          * For each listed device, check related sysfs entry against
 272          * the provided PCI ID.
 273          */
 274         while (i != 0) {
 275                 struct rte_pci_addr pci_addr;
 276
 277                 --i;
 278                 DEBUG("checking device \"%s\"", list[i]->name);
 279                 if (mlx5_ibv_device_to_pci_addr(list[i], &pci_addr))
 280                         continue;
 281                 if ((pci_dev->addr.domain != pci_addr.domain) ||
 282                     (pci_dev->addr.bus != pci_addr.bus) ||
 283                     (pci_dev->addr.devid != pci_addr.devid) ||
 284                     (pci_dev->addr.function != pci_addr.function))
 285                         continue;
 286                 vf = ((pci_dev->id.device_id ==
 287                        PCI_DEVICE_ID_MELLANOX_CONNECTX4VF) ||
 288                       (pci_dev->id.device_id ==
 289                        PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF));
 290                 INFO("PCI information matches, using device \"%s\" (VF: %s)",
 291                      list[i]->name, (vf ? "true" : "false"));
 292                 attr_ctx = ibv_open_device(list[i]);
 293                 err = errno;
 294                 break;
 295         }
 296         if (attr_ctx == NULL) {
 297                 ibv_free_device_list(list);
 298                 switch (err) {
 299                 case 0:
 300                         WARN("cannot access device, is mlx5_ib loaded?");
 301                         return 0;
 302                 case EINVAL:
 303                         WARN("cannot use device, are drivers up to date?");
 304                         return 0;
 305                 }
 306                 assert(err > 0);
 307                 return -err;
 308         }
 309         ibv_dev = list[i];
 310
 311         DEBUG("device opened");
 312         if (ibv_query_device(attr_ctx, &device_attr))
 313                 goto error;
 314         INFO("%u port(s) detected", device_attr.phys_port_cnt);
 315
 316         for (i = 0; i < device_attr.phys_port_cnt; i++) {
 317                 uint32_t port = i + 1; /* ports are indexed from one */
 318                 uint32_t test = (1 << i);
 319                 struct ibv_context *ctx = NULL;
 320                 struct ibv_port_attr port_attr;
 321                 struct ibv_pd *pd = NULL;
 322                 struct priv *priv = NULL;
 323                 struct rte_eth_dev *eth_dev;
 324 #ifdef HAVE_EXP_QUERY_DEVICE
 325                 struct ibv_exp_device_attr exp_device_attr;
 326 #endif /* HAVE_EXP_QUERY_DEVICE */
 327                 struct ether_addr mac;
 328
 329 #ifdef HAVE_EXP_QUERY_DEVICE
 330                 exp_device_attr.comp_mask =
 331                         IBV_EXP_DEVICE_ATTR_EXP_CAP_FLAGS |
 332                         IBV_EXP_DEVICE_ATTR_RX_HASH |
 333 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 334                         IBV_EXP_DEVICE_ATTR_VLAN_OFFLOADS |
 335 #endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 336                         0;
 337 #endif /* HAVE_EXP_QUERY_DEVICE */
 338
 339                 DEBUG("using port %u (%08" PRIx32 ")", port, test);
 340
 341                 ctx = ibv_open_device(ibv_dev);
 342                 if (ctx == NULL)
 343                         goto port_error;
 344
 345                 /* Check port status. */
 346                 err = ibv_query_port(ctx, port, &port_attr);
 347                 if (err) {
 348                         ERROR("port query failed: %s", strerror(err));
 349                         goto port_error;
 350                 }
 351                 if (port_attr.state != IBV_PORT_ACTIVE)
 352                         DEBUG("port %d is not active: \"%s\" (%d)",
 353                               port, ibv_port_state_str(port_attr.state),
 354                               port_attr.state);
 355
 356                 /* Allocate protection domain. */
 357                 pd = ibv_alloc_pd(ctx);
 358                 if (pd == NULL) {
 359                         ERROR("PD allocation failure");
 360                         err = ENOMEM;
 361                         goto port_error;
 362                 }
 363
 364                 mlx5_dev[idx].ports |= test;
 365
 366                 /* from rte_ethdev.c */
 367                 priv = rte_zmalloc("ethdev private structure",
 368                                    sizeof(*priv),
 369                                    RTE_CACHE_LINE_SIZE);
 370                 if (priv == NULL) {
 371                         ERROR("priv allocation failure");
 372                         err = ENOMEM;
 373                         goto port_error;
 374                 }
 375
 376                 priv->ctx = ctx;
 377                 priv->device_attr = device_attr;
 378                 priv->port = port;
 379                 priv->pd = pd;
 380                 priv->mtu = ETHER_MTU;
 381 #ifdef HAVE_EXP_QUERY_DEVICE
 382                 if (ibv_exp_query_device(ctx, &exp_device_attr)) {
 383                         ERROR("ibv_exp_query_device() failed");
 384                         goto port_error;
 385                 }
 386
 387                 priv->hw_csum =
 388                         ((exp_device_attr.exp_device_cap_flags &
 389                           IBV_EXP_DEVICE_RX_CSUM_TCP_UDP_PKT) &&
 390                          (exp_device_attr.exp_device_cap_flags &
 391                           IBV_EXP_DEVICE_RX_CSUM_IP_PKT));
 392                 DEBUG("checksum offloading is %ssupported",
 393                       (priv->hw_csum ? "" : "not "));
 394
 395                 priv->hw_csum_l2tun = !!(exp_device_attr.exp_device_cap_flags &
 396                                          IBV_EXP_DEVICE_VXLAN_SUPPORT);
 397                 DEBUG("L2 tunnel checksum offloads are %ssupported",
 398                       (priv->hw_csum_l2tun ? "" : "not "));
 399
 400                 priv->ind_table_max_size = exp_device_attr.rx_hash_caps.max_rwq_indirection_table_size;
 401                 /* Remove this check once DPDK supports larger/variable
 402                  * indirection tables. */
 403                 if (priv->ind_table_max_size > (unsigned int)RSS_INDIRECTION_TABLE_SIZE)
 404                         priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
 405                 DEBUG("maximum RX indirection table size is %u",
 406                       priv->ind_table_max_size);
 407 #ifdef HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS
 408                 priv->hw_vlan_strip = !!(exp_device_attr.wq_vlan_offloads_cap &
 409                                          IBV_EXP_RECEIVE_WQ_CVLAN_STRIP);
 410 #endif /* HAVE_EXP_DEVICE_ATTR_VLAN_OFFLOADS */
 411                 DEBUG("VLAN stripping is %ssupported",
 412                       (priv->hw_vlan_strip ? "" : "not "));
 413
 414 #else /* HAVE_EXP_QUERY_DEVICE */
 415                 priv->ind_table_max_size = RSS_INDIRECTION_TABLE_SIZE;
 416 #endif /* HAVE_EXP_QUERY_DEVICE */
 417
 418                 priv->vf = vf;
 419                 /* Allocate and register default RSS hash keys. */
 420                 priv->rss_conf = rte_calloc(__func__, hash_rxq_init_n,
 421                                             sizeof((*priv->rss_conf)[0]), 0);
 422                 if (priv->rss_conf == NULL) {
 423                         err = ENOMEM;
 424                         goto port_error;
 425                 }
 426                 err = rss_hash_rss_conf_new_key(priv,
 427                                                 rss_hash_default_key,
 428                                                 rss_hash_default_key_len,
 429                                                 ETH_RSS_PROTO_MASK);
 430                 if (err)
 431                         goto port_error;
 432                 /* Configure the first MAC address by default. */
 433                 if (priv_get_mac(priv, &mac.addr_bytes)) {
 434                         ERROR("cannot get MAC address, is mlx5_en loaded?"
 435                               " (errno: %s)", strerror(errno));
 436                         goto port_error;
 437                 }
 438                 INFO("port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
 439                      priv->port,
 440                      mac.addr_bytes[0], mac.addr_bytes[1],
 441                      mac.addr_bytes[2], mac.addr_bytes[3],
 442                      mac.addr_bytes[4], mac.addr_bytes[5]);
 443                 /* Register MAC address. */
 444                 claim_zero(priv_mac_addr_add(priv, 0,
 445                                              (const uint8_t (*)[ETHER_ADDR_LEN])
 446                                              mac.addr_bytes));
 447                 /* Initialize FD filters list. */
 448                 err = fdir_init_filters_list(priv);
 449                 if (err)
 450                         goto port_error;
 451 #ifndef NDEBUG
 452                 {
 453                         char ifname[IF_NAMESIZE];
 454
 455                         if (priv_get_ifname(priv, &ifname) == 0)
 456                                 DEBUG("port %u ifname is \"%s\"",
 457                                       priv->port, ifname);
 458                         else
 459                                 DEBUG("port %u ifname is unknown", priv->port);
 460                 }
 461 #endif
 462                 /* Get actual MTU if possible. */
 463                 priv_get_mtu(priv, &priv->mtu);
 464                 DEBUG("port %u MTU is %u", priv->port, priv->mtu);
 465
 466                 /* from rte_ethdev.c */
 467                 {
 468                         char name[RTE_ETH_NAME_MAX_LEN];
 469
 470                         snprintf(name, sizeof(name), "%s port %u",
 471                                  ibv_get_device_name(ibv_dev), port);
 472                         eth_dev = rte_eth_dev_allocate(name, RTE_ETH_DEV_PCI);
 473                 }
 474                 if (eth_dev == NULL) {
 475                         ERROR("can not allocate rte ethdev");
 476                         err = ENOMEM;
 477                         goto port_error;
 478                 }
 479
 480                 eth_dev->data->dev_private = priv;
 481                 eth_dev->pci_dev = pci_dev;
 482
 483                 rte_eth_copy_pci_info(eth_dev, pci_dev);
 484
 485                 eth_dev->driver = &mlx5_driver;
 486                 eth_dev->data->rx_mbuf_alloc_failed = 0;
 487                 eth_dev->data->mtu = ETHER_MTU;
 488
 489                 priv->dev = eth_dev;
 490                 eth_dev->dev_ops = &mlx5_dev_ops;
 491                 eth_dev->data->mac_addrs = priv->mac;
 492                 TAILQ_INIT(&eth_dev->link_intr_cbs);
 493
 494                 /* Bring Ethernet device up. */
 495                 DEBUG("forcing Ethernet interface up");
 496                 priv_set_flags(priv, ~IFF_UP, IFF_UP);
 497                 continue;
 498
 499 port_error:
 500                 rte_free(priv->rss_conf);
 501                 rte_free(priv);
 502                 if (pd)
 503                         claim_zero(ibv_dealloc_pd(pd));
 504                 if (ctx)
 505                         claim_zero(ibv_close_device(ctx));
 506                 break;
 507         }
 508
 509         /*
 510          * XXX if something went wrong in the loop above, there is a resource
 511          * leak (ctx, pd, priv, dpdk ethdev) but we can do nothing about it as
 512          * long as the dpdk does not provide a way to deallocate a ethdev and a
 513          * way to enumerate the registered ethdevs to free the previous ones.
 514          */
 515
 516         /* no port found, complain */
 517         if (!mlx5_dev[idx].ports) {
 518                 err = ENODEV;
 519                 goto error;
 520         }
 521
 522 error:
 523         if (attr_ctx)
 524                 claim_zero(ibv_close_device(attr_ctx));
 525         if (list)
 526                 ibv_free_device_list(list);
 527         assert(err >= 0);
 528         return -err;
 529 }
 530
 531 static const struct rte_pci_id mlx5_pci_id_map[] = {
 532         {
 533                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 534                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4,
 535                 .subsystem_vendor_id = PCI_ANY_ID,
 536                 .subsystem_device_id = PCI_ANY_ID
 537         },
 538         {
 539                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 540                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4VF,
 541                 .subsystem_vendor_id = PCI_ANY_ID,
 542                 .subsystem_device_id = PCI_ANY_ID
 543         },
 544         {
 545                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 546                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LX,
 547                 .subsystem_vendor_id = PCI_ANY_ID,
 548                 .subsystem_device_id = PCI_ANY_ID
 549         },
 550         {
 551                 .vendor_id = PCI_VENDOR_ID_MELLANOX,
 552                 .device_id = PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF,
 553                 .subsystem_vendor_id = PCI_ANY_ID,
 554                 .subsystem_device_id = PCI_ANY_ID
 555         },
 556         {
 557                 .vendor_id = 0
 558         }
 559 };
 560
 561 static struct eth_driver mlx5_driver = {
 562         .pci_drv = {
 563                 .name = MLX5_DRIVER_NAME,
 564                 .id_table = mlx5_pci_id_map,
 565                 .devinit = mlx5_pci_devinit,
 566                 .drv_flags = RTE_PCI_DRV_INTR_LSC,
 567         },
 568         .dev_private_size = sizeof(struct priv)
 569 };
 570
 571 /**
 572  * Driver initialization routine.
 573  */
 574 static int
 575 rte_mlx5_pmd_init(const char *name, const char *args)
 576 {
 577         (void)name;
 578         (void)args;
 579         /*
 580          * RDMAV_HUGEPAGES_SAFE tells ibv_fork_init() we intend to use
 581          * huge pages. Calling ibv_fork_init() during init allows
 582          * applications to use fork() safely for purposes other than
 583          * using this PMD, which is not supported in forked processes.
 584          */
 585         setenv("RDMAV_HUGEPAGES_SAFE", "1", 1);
 586         ibv_fork_init();
 587         rte_eal_pci_register(&mlx5_driver.pci_drv);
 588         return 0;
 589 }
 590
 591 static struct rte_driver rte_mlx5_driver = {
 592         .type = PMD_PDEV,
 593         .name = MLX5_DRIVER_NAME,
 594         .init = rte_mlx5_pmd_init,
 595 };
 596
 597 PMD_REGISTER_DRIVER(rte_mlx5_driver)