drivers/net/mlx5/mlx5_ethdev.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 #define _GNU_SOURCE
  35
  36 #include <stddef.h>
  37 #include <assert.h>
  38 #include <inttypes.h>
  39 #include <unistd.h>
  40 #include <stdint.h>
  41 #include <stdio.h>
  42 #include <string.h>
  43 #include <stdlib.h>
  44 #include <errno.h>
  45 #include <dirent.h>
  46 #include <net/if.h>
  47 #include <sys/ioctl.h>
  48 #include <sys/socket.h>
  49 #include <netinet/in.h>
  50 #include <linux/ethtool.h>
  51 #include <linux/sockios.h>
  52 #include <fcntl.h>
  53 #include <stdalign.h>
  54 #include <sys/un.h>
  55 #include <time.h>
  56
  57 #include <rte_atomic.h>
  58 #include <rte_ethdev.h>
  59 #include <rte_bus_pci.h>
  60 #include <rte_mbuf.h>
  61 #include <rte_common.h>
  62 #include <rte_interrupts.h>
  63 #include <rte_malloc.h>
  64
  65 #include "mlx5.h"
  66 #include "mlx5_rxtx.h"
  67 #include "mlx5_utils.h"
  68
  69 /* Add defines in case the running kernel is not the same as user headers. */
  70 #ifndef ETHTOOL_GLINKSETTINGS
  71 struct ethtool_link_settings {
  72         uint32_t cmd;
  73         uint32_t speed;
  74         uint8_t duplex;
  75         uint8_t port;
  76         uint8_t phy_address;
  77         uint8_t autoneg;
  78         uint8_t mdio_support;
  79         uint8_t eth_to_mdix;
  80         uint8_t eth_tp_mdix_ctrl;
  81         int8_t link_mode_masks_nwords;
  82         uint32_t reserved[8];
  83         uint32_t link_mode_masks[];
  84 };
  85
  86 #define ETHTOOL_GLINKSETTINGS 0x0000004c
  87 #define ETHTOOL_LINK_MODE_1000baseT_Full_BIT 5
  88 #define ETHTOOL_LINK_MODE_Autoneg_BIT 6
  89 #define ETHTOOL_LINK_MODE_1000baseKX_Full_BIT 17
  90 #define ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT 18
  91 #define ETHTOOL_LINK_MODE_10000baseKR_Full_BIT 19
  92 #define ETHTOOL_LINK_MODE_10000baseR_FEC_BIT 20
  93 #define ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT 21
  94 #define ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT 22
  95 #define ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT 23
  96 #define ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT 24
  97 #define ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT 25
  98 #define ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT 26
  99 #define ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT 27
 100 #define ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT 28
 101 #define ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT 29
 102 #define ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT 30
 103 #endif
 104 #ifndef HAVE_ETHTOOL_LINK_MODE_25G
 105 #define ETHTOOL_LINK_MODE_25000baseCR_Full_BIT 31
 106 #define ETHTOOL_LINK_MODE_25000baseKR_Full_BIT 32
 107 #define ETHTOOL_LINK_MODE_25000baseSR_Full_BIT 33
 108 #endif
 109 #ifndef HAVE_ETHTOOL_LINK_MODE_50G
 110 #define ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT 34
 111 #define ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT 35
 112 #endif
 113 #ifndef HAVE_ETHTOOL_LINK_MODE_100G
 114 #define ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT 36
 115 #define ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT 37
 116 #define ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT 38
 117 #define ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT 39
 118 #endif
 119
 120 /**
 121  * Get interface name from private structure.
 122  *
 123  * @param[in] dev
 124  *   Pointer to Ethernet device.
 125  * @param[out] ifname
 126  *   Interface name output buffer.
 127  *
 128  * @return
 129  *   0 on success, a negative errno value otherwise and rte_errno is set.
 130  */
 131 int
 132 mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[IF_NAMESIZE])
 133 {
 134         struct priv *priv = dev->data->dev_private;
 135         DIR *dir;
 136         struct dirent *dent;
 137         unsigned int dev_type = 0;
 138         unsigned int dev_port_prev = ~0u;
 139         char match[IF_NAMESIZE] = "";
 140
 141         {
 142                 MKSTR(path, "%s/device/net", priv->ibdev_path);
 143
 144                 dir = opendir(path);
 145                 if (dir == NULL) {
 146                         rte_errno = errno;
 147                         return -rte_errno;
 148                 }
 149         }
 150         while ((dent = readdir(dir)) != NULL) {
 151                 char *name = dent->d_name;
 152                 FILE *file;
 153                 unsigned int dev_port;
 154                 int r;
 155
 156                 if ((name[0] == '.') &&
 157                     ((name[1] == '\0') ||
 158                      ((name[1] == '.') && (name[2] == '\0'))))
 159                         continue;
 160
 161                 MKSTR(path, "%s/device/net/%s/%s",
 162                       priv->ibdev_path, name,
 163                       (dev_type ? "dev_id" : "dev_port"));
 164
 165                 file = fopen(path, "rb");
 166                 if (file == NULL) {
 167                         if (errno != ENOENT)
 168                                 continue;
 169                         /*
 170                          * Switch to dev_id when dev_port does not exist as
 171                          * is the case with Linux kernel versions < 3.15.
 172                          */
 173 try_dev_id:
 174                         match[0] = '\0';
 175                         if (dev_type)
 176                                 break;
 177                         dev_type = 1;
 178                         dev_port_prev = ~0u;
 179                         rewinddir(dir);
 180                         continue;
 181                 }
 182                 r = fscanf(file, (dev_type ? "%x" : "%u"), &dev_port);
 183                 fclose(file);
 184                 if (r != 1)
 185                         continue;
 186                 /*
 187                  * Switch to dev_id when dev_port returns the same value for
 188                  * all ports. May happen when using a MOFED release older than
 189                  * 3.0 with a Linux kernel >= 3.15.
 190                  */
 191                 if (dev_port == dev_port_prev)
 192                         goto try_dev_id;
 193                 dev_port_prev = dev_port;
 194                 if (dev_port == (priv->port - 1u))
 195                         snprintf(match, sizeof(match), "%s", name);
 196         }
 197         closedir(dir);
 198         if (match[0] == '\0') {
 199                 rte_errno = ENOENT;
 200                 return -rte_errno;
 201         }
 202         strncpy(*ifname, match, sizeof(*ifname));
 203         return 0;
 204 }
 205
 206 /**
 207  * Perform ifreq ioctl() on associated Ethernet device.
 208  *
 209  * @param[in] dev
 210  *   Pointer to Ethernet device.
 211  * @param req
 212  *   Request number to pass to ioctl().
 213  * @param[out] ifr
 214  *   Interface request structure output buffer.
 215  *
 216  * @return
 217  *   0 on success, a negative errno value otherwise and rte_errno is set.
 218  */
 219 int
 220 mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr)
 221 {
 222         int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
 223         int ret = 0;
 224
 225         if (sock == -1) {
 226                 rte_errno = errno;
 227                 return -rte_errno;
 228         }
 229         ret = mlx5_get_ifname(dev, &ifr->ifr_name);
 230         if (ret)
 231                 goto error;
 232         ret = ioctl(sock, req, ifr);
 233         if (ret == -1) {
 234                 rte_errno = errno;
 235                 goto error;
 236         }
 237         close(sock);
 238         return 0;
 239 error:
 240         close(sock);
 241         return -rte_errno;
 242 }
 243
 244 /**
 245  * Get device MTU.
 246  *
 247  * @param dev
 248  *   Pointer to Ethernet device.
 249  * @param[out] mtu
 250  *   MTU value output buffer.
 251  *
 252  * @return
 253  *   0 on success, a negative errno value otherwise and rte_errno is set.
 254  */
 255 int
 256 mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu)
 257 {
 258         struct ifreq request;
 259         int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request);
 260
 261         if (ret)
 262                 return ret;
 263         *mtu = request.ifr_mtu;
 264         return 0;
 265 }
 266
 267 /**
 268  * Set device MTU.
 269  *
 270  * @param dev
 271  *   Pointer to Ethernet device.
 272  * @param mtu
 273  *   MTU value to set.
 274  *
 275  * @return
 276  *   0 on success, a negative errno value otherwise and rte_errno is set.
 277  */
 278 static int
 279 mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 280 {
 281         struct ifreq request = { .ifr_mtu = mtu, };
 282
 283         return mlx5_ifreq(dev, SIOCSIFMTU, &request);
 284 }
 285
 286 /**
 287  * Set device flags.
 288  *
 289  * @param dev
 290  *   Pointer to Ethernet device.
 291  * @param keep
 292  *   Bitmask for flags that must remain untouched.
 293  * @param flags
 294  *   Bitmask for flags to modify.
 295  *
 296  * @return
 297  *   0 on success, a negative errno value otherwise and rte_errno is set.
 298  */
 299 int
 300 mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags)
 301 {
 302         struct ifreq request;
 303         int ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &request);
 304
 305         if (ret)
 306                 return ret;
 307         request.ifr_flags &= keep;
 308         request.ifr_flags |= flags & ~keep;
 309         return mlx5_ifreq(dev, SIOCSIFFLAGS, &request);
 310 }
 311
 312 /**
 313  * DPDK callback for Ethernet device configuration.
 314  *
 315  * @param dev
 316  *   Pointer to Ethernet device structure.
 317  *
 318  * @return
 319  *   0 on success, a negative errno value otherwise and rte_errno is set.
 320  */
 321 int
 322 mlx5_dev_configure(struct rte_eth_dev *dev)
 323 {
 324         struct priv *priv = dev->data->dev_private;
 325         unsigned int rxqs_n = dev->data->nb_rx_queues;
 326         unsigned int txqs_n = dev->data->nb_tx_queues;
 327         unsigned int i;
 328         unsigned int j;
 329         unsigned int reta_idx_n;
 330         const uint8_t use_app_rss_key =
 331                 !!dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key;
 332         int ret = 0;
 333
 334         if (use_app_rss_key &&
 335             (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len !=
 336              rss_hash_default_key_len)) {
 337                 DRV_LOG(ERR, "port %u RSS key len must be %zu Bytes long",
 338                         dev->data->port_id, rss_hash_default_key_len);
 339                 rte_errno = EINVAL;
 340                 return -rte_errno;
 341         }
 342         priv->rss_conf.rss_key =
 343                 rte_realloc(priv->rss_conf.rss_key,
 344                             rss_hash_default_key_len, 0);
 345         if (!priv->rss_conf.rss_key) {
 346                 DRV_LOG(ERR, "port %u cannot allocate RSS hash key memory (%u)",
 347                         dev->data->port_id, rxqs_n);
 348                 rte_errno = ENOMEM;
 349                 return -rte_errno;
 350         }
 351         memcpy(priv->rss_conf.rss_key,
 352                use_app_rss_key ?
 353                dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key :
 354                rss_hash_default_key,
 355                rss_hash_default_key_len);
 356         priv->rss_conf.rss_key_len = rss_hash_default_key_len;
 357         priv->rss_conf.rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf;
 358         priv->rxqs = (void *)dev->data->rx_queues;
 359         priv->txqs = (void *)dev->data->tx_queues;
 360         if (txqs_n != priv->txqs_n) {
 361                 DRV_LOG(INFO, "port %u Tx queues number update: %u -> %u",
 362                         dev->data->port_id, priv->txqs_n, txqs_n);
 363                 priv->txqs_n = txqs_n;
 364         }
 365         if (rxqs_n > priv->ind_table_max_size) {
 366                 DRV_LOG(ERR, "port %u cannot handle this many Rx queues (%u)",
 367                         dev->data->port_id, rxqs_n);
 368                 rte_errno = EINVAL;
 369                 return -rte_errno;
 370         }
 371         if (rxqs_n == priv->rxqs_n)
 372                 return 0;
 373         DRV_LOG(INFO, "port %u Rx queues number update: %u -> %u",
 374                 dev->data->port_id, priv->rxqs_n, rxqs_n);
 375         priv->rxqs_n = rxqs_n;
 376         /* If the requested number of RX queues is not a power of two, use the
 377          * maximum indirection table size for better balancing.
 378          * The result is always rounded to the next power of two. */
 379         reta_idx_n = (1 << log2above((rxqs_n & (rxqs_n - 1)) ?
 380                                      priv->ind_table_max_size :
 381                                      rxqs_n));
 382         ret = mlx5_rss_reta_index_resize(dev, reta_idx_n);
 383         if (ret)
 384                 return ret;
 385         /* When the number of RX queues is not a power of two, the remaining
 386          * table entries are padded with reused WQs and hashes are not spread
 387          * uniformly. */
 388         for (i = 0, j = 0; (i != reta_idx_n); ++i) {
 389                 (*priv->reta_idx)[i] = j;
 390                 if (++j == rxqs_n)
 391                         j = 0;
 392         }
 393         return 0;
 394 }
 395
 396 /**
 397  * DPDK callback to get information about the device.
 398  *
 399  * @param dev
 400  *   Pointer to Ethernet device structure.
 401  * @param[out] info
 402  *   Info structure output buffer.
 403  */
 404 void
 405 mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info)
 406 {
 407         struct priv *priv = dev->data->dev_private;
 408         unsigned int max;
 409         char ifname[IF_NAMESIZE];
 410
 411         info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 412         /* FIXME: we should ask the device for these values. */
 413         info->min_rx_bufsize = 32;
 414         info->max_rx_pktlen = 65536;
 415         /*
 416          * Since we need one CQ per QP, the limit is the minimum number
 417          * between the two values.
 418          */
 419         max = RTE_MIN(priv->device_attr.orig_attr.max_cq,
 420                       priv->device_attr.orig_attr.max_qp);
 421         /* If max >= 65535 then max = 0, max_rx_queues is uint16_t. */
 422         if (max >= 65535)
 423                 max = 65535;
 424         info->max_rx_queues = max;
 425         info->max_tx_queues = max;
 426         info->max_mac_addrs = RTE_DIM(priv->mac);
 427         info->rx_offload_capa =
 428                 (priv->hw_csum ?
 429                  (DEV_RX_OFFLOAD_IPV4_CKSUM |
 430                   DEV_RX_OFFLOAD_UDP_CKSUM |
 431                   DEV_RX_OFFLOAD_TCP_CKSUM) :
 432                  0) |
 433                 (priv->hw_vlan_strip ? DEV_RX_OFFLOAD_VLAN_STRIP : 0) |
 434                 DEV_RX_OFFLOAD_TIMESTAMP;
 435
 436         if (!priv->mps)
 437                 info->tx_offload_capa = DEV_TX_OFFLOAD_VLAN_INSERT;
 438         if (priv->hw_csum)
 439                 info->tx_offload_capa |=
 440                         (DEV_TX_OFFLOAD_IPV4_CKSUM |
 441                          DEV_TX_OFFLOAD_UDP_CKSUM |
 442                          DEV_TX_OFFLOAD_TCP_CKSUM);
 443         if (priv->tso)
 444                 info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 445         if (priv->tunnel_en)
 446                 info->tx_offload_capa |= (DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
 447                                           DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
 448                                           DEV_TX_OFFLOAD_GRE_TNL_TSO);
 449         if (mlx5_get_ifname(dev, &ifname) == 0)
 450                 info->if_index = if_nametoindex(ifname);
 451         info->reta_size = priv->reta_idx_n ?
 452                 priv->reta_idx_n : priv->ind_table_max_size;
 453         info->hash_key_size = rss_hash_default_key_len;
 454         info->speed_capa = priv->link_speed_capa;
 455         info->flow_type_rss_offloads = ~MLX5_RSS_HF_MASK;
 456 }
 457
 458 /**
 459  * Get supported packet types.
 460  *
 461  * @param dev
 462  *   Pointer to Ethernet device structure.
 463  *
 464  * @return
 465  *   A pointer to the supported Packet types array.
 466  */
 467 const uint32_t *
 468 mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 469 {
 470         static const uint32_t ptypes[] = {
 471                 /* refers to rxq_cq_to_pkt_type() */
 472                 RTE_PTYPE_L2_ETHER,
 473                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 474                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 475                 RTE_PTYPE_L4_NONFRAG,
 476                 RTE_PTYPE_L4_FRAG,
 477                 RTE_PTYPE_L4_TCP,
 478                 RTE_PTYPE_L4_UDP,
 479                 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
 480                 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
 481                 RTE_PTYPE_INNER_L4_NONFRAG,
 482                 RTE_PTYPE_INNER_L4_FRAG,
 483                 RTE_PTYPE_INNER_L4_TCP,
 484                 RTE_PTYPE_INNER_L4_UDP,
 485                 RTE_PTYPE_UNKNOWN
 486         };
 487
 488         if (dev->rx_pkt_burst == mlx5_rx_burst ||
 489             dev->rx_pkt_burst == mlx5_rx_burst_vec)
 490                 return ptypes;
 491         return NULL;
 492 }
 493
 494 /**
 495  * DPDK callback to retrieve physical link information.
 496  *
 497  * @param dev
 498  *   Pointer to Ethernet device structure.
 499  * @param[out] link
 500  *   Storage for current link status.
 501  *
 502  * @return
 503  *   0 on success, a negative errno value otherwise and rte_errno is set.
 504  */
 505 static int
 506 mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev,
 507                                struct rte_eth_link *link)
 508 {
 509         struct priv *priv = dev->data->dev_private;
 510         struct ethtool_cmd edata = {
 511                 .cmd = ETHTOOL_GSET /* Deprecated since Linux v4.5. */
 512         };
 513         struct ifreq ifr;
 514         struct rte_eth_link dev_link;
 515         int link_speed = 0;
 516         int ret;
 517
 518         ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
 519         if (ret) {
 520                 DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
 521                         dev->data->port_id, strerror(rte_errno));
 522                 return ret;
 523         }
 524         memset(&dev_link, 0, sizeof(dev_link));
 525         dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
 526                                 (ifr.ifr_flags & IFF_RUNNING));
 527         ifr.ifr_data = (void *)&edata;
 528         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
 529         if (ret) {
 530                 DRV_LOG(WARNING,
 531                         "port %u ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s",
 532                         dev->data->port_id, strerror(rte_errno));
 533                 return ret;
 534         }
 535         link_speed = ethtool_cmd_speed(&edata);
 536         if (link_speed == -1)
 537                 dev_link.link_speed = 0;
 538         else
 539                 dev_link.link_speed = link_speed;
 540         priv->link_speed_capa = 0;
 541         if (edata.supported & SUPPORTED_Autoneg)
 542                 priv->link_speed_capa |= ETH_LINK_SPEED_AUTONEG;
 543         if (edata.supported & (SUPPORTED_1000baseT_Full |
 544                                SUPPORTED_1000baseKX_Full))
 545                 priv->link_speed_capa |= ETH_LINK_SPEED_1G;
 546         if (edata.supported & SUPPORTED_10000baseKR_Full)
 547                 priv->link_speed_capa |= ETH_LINK_SPEED_10G;
 548         if (edata.supported & (SUPPORTED_40000baseKR4_Full |
 549                                SUPPORTED_40000baseCR4_Full |
 550                                SUPPORTED_40000baseSR4_Full |
 551                                SUPPORTED_40000baseLR4_Full))
 552                 priv->link_speed_capa |= ETH_LINK_SPEED_40G;
 553         dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ?
 554                                 ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
 555         dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
 556                         ETH_LINK_SPEED_FIXED);
 557         if ((dev_link.link_speed && !dev_link.link_status) ||
 558             (!dev_link.link_speed && dev_link.link_status)) {
 559                 rte_errno = EAGAIN;
 560                 return -rte_errno;
 561         }
 562         *link = dev_link;
 563         return 0;
 564 }
 565
 566 /**
 567  * Retrieve physical link information (unlocked version using new ioctl).
 568  *
 569  * @param dev
 570  *   Pointer to Ethernet device structure.
 571  * @param[out] link
 572  *   Storage for current link status.
 573  *
 574  * @return
 575  *   0 on success, a negative errno value otherwise and rte_errno is set.
 576  */
 577 static int
 578 mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev,
 579                              struct rte_eth_link *link)
 580
 581 {
 582         struct priv *priv = dev->data->dev_private;
 583         struct ethtool_link_settings gcmd = { .cmd = ETHTOOL_GLINKSETTINGS };
 584         struct ifreq ifr;
 585         struct rte_eth_link dev_link;
 586         uint64_t sc;
 587         int ret;
 588
 589         ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr);
 590         if (ret) {
 591                 DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s",
 592                         dev->data->port_id, strerror(rte_errno));
 593                 return ret;
 594         }
 595         memset(&dev_link, 0, sizeof(dev_link));
 596         dev_link.link_status = ((ifr.ifr_flags & IFF_UP) &&
 597                                 (ifr.ifr_flags & IFF_RUNNING));
 598         ifr.ifr_data = (void *)&gcmd;
 599         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
 600         if (ret) {
 601                 DRV_LOG(DEBUG,
 602                         "port %u ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS)"
 603                         " failed: %s",
 604                         dev->data->port_id, strerror(rte_errno));
 605                 return ret;
 606         }
 607         gcmd.link_mode_masks_nwords = -gcmd.link_mode_masks_nwords;
 608
 609         alignas(struct ethtool_link_settings)
 610         uint8_t data[offsetof(struct ethtool_link_settings, link_mode_masks) +
 611                      sizeof(uint32_t) * gcmd.link_mode_masks_nwords * 3];
 612         struct ethtool_link_settings *ecmd = (void *)data;
 613
 614         *ecmd = gcmd;
 615         ifr.ifr_data = (void *)ecmd;
 616         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
 617         if (ret) {
 618                 DRV_LOG(DEBUG,
 619                         "port %u ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS)"
 620                         " failed: %s",
 621                         dev->data->port_id, strerror(rte_errno));
 622                 return ret;
 623         }
 624         dev_link.link_speed = ecmd->speed;
 625         sc = ecmd->link_mode_masks[0] |
 626                 ((uint64_t)ecmd->link_mode_masks[1] << 32);
 627         priv->link_speed_capa = 0;
 628         if (sc & MLX5_BITSHIFT(ETHTOOL_LINK_MODE_Autoneg_BIT))
 629                 priv->link_speed_capa |= ETH_LINK_SPEED_AUTONEG;
 630         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseT_Full_BIT) |
 631                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT)))
 632                 priv->link_speed_capa |= ETH_LINK_SPEED_1G;
 633         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT) |
 634                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT) |
 635                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseR_FEC_BIT)))
 636                 priv->link_speed_capa |= ETH_LINK_SPEED_10G;
 637         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT) |
 638                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT)))
 639                 priv->link_speed_capa |= ETH_LINK_SPEED_20G;
 640         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT) |
 641                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT) |
 642                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT) |
 643                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT)))
 644                 priv->link_speed_capa |= ETH_LINK_SPEED_40G;
 645         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT) |
 646                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT) |
 647                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT) |
 648                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT)))
 649                 priv->link_speed_capa |= ETH_LINK_SPEED_56G;
 650         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT) |
 651                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT) |
 652                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseSR_Full_BIT)))
 653                 priv->link_speed_capa |= ETH_LINK_SPEED_25G;
 654         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT) |
 655                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT)))
 656                 priv->link_speed_capa |= ETH_LINK_SPEED_50G;
 657         if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT) |
 658                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT) |
 659                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT) |
 660                   MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT)))
 661                 priv->link_speed_capa |= ETH_LINK_SPEED_100G;
 662         dev_link.link_duplex = ((ecmd->duplex == DUPLEX_HALF) ?
 663                                 ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
 664         dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
 665                                   ETH_LINK_SPEED_FIXED);
 666         if ((dev_link.link_speed && !dev_link.link_status) ||
 667             (!dev_link.link_speed && dev_link.link_status)) {
 668                 rte_errno = EAGAIN;
 669                 return -rte_errno;
 670         }
 671         *link = dev_link;
 672         return 0;
 673 }
 674
 675 /**
 676  * DPDK callback to retrieve physical link information.
 677  *
 678  * @param dev
 679  *   Pointer to Ethernet device structure.
 680  * @param wait_to_complete
 681  *   Wait for request completion.
 682  *
 683  * @return
 684  *   0 if link status was not updated, positive if it was, a negative errno
 685  *   value otherwise and rte_errno is set.
 686  */
 687 int
 688 mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 689 {
 690         int ret;
 691         struct rte_eth_link dev_link;
 692         time_t start_time = time(NULL);
 693
 694         do {
 695                 ret = mlx5_link_update_unlocked_gs(dev, &dev_link);
 696                 if (ret)
 697                         ret = mlx5_link_update_unlocked_gset(dev, &dev_link);
 698                 if (ret == 0)
 699                         break;
 700                 /* Handle wait to complete situation. */
 701                 if (wait_to_complete && ret == -EAGAIN) {
 702                         if (abs((int)difftime(time(NULL), start_time)) <
 703                             MLX5_LINK_STATUS_TIMEOUT) {
 704                                 usleep(0);
 705                                 continue;
 706                         } else {
 707                                 rte_errno = EBUSY;
 708                                 return -rte_errno;
 709                         }
 710                 } else if (ret < 0) {
 711                         return ret;
 712                 }
 713         } while (wait_to_complete);
 714         ret = !!memcmp(&dev->data->dev_link, &dev_link,
 715                        sizeof(struct rte_eth_link));
 716         dev->data->dev_link = dev_link;
 717         return ret;
 718 }
 719
 720 /**
 721  * DPDK callback to change the MTU.
 722  *
 723  * @param dev
 724  *   Pointer to Ethernet device structure.
 725  * @param in_mtu
 726  *   New MTU.
 727  *
 728  * @return
 729  *   0 on success, a negative errno value otherwise and rte_errno is set.
 730  */
 731 int
 732 mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 733 {
 734         struct priv *priv = dev->data->dev_private;
 735         uint16_t kern_mtu = 0;
 736         int ret;
 737
 738         ret = mlx5_get_mtu(dev, &kern_mtu);
 739         if (ret)
 740                 return ret;
 741         /* Set kernel interface MTU first. */
 742         ret = mlx5_set_mtu(dev, mtu);
 743         if (ret)
 744                 return ret;
 745         ret = mlx5_get_mtu(dev, &kern_mtu);
 746         if (ret)
 747                 return ret;
 748         if (kern_mtu == mtu) {
 749                 priv->mtu = mtu;
 750                 DRV_LOG(DEBUG, "port %u adapter MTU set to %u",
 751                         dev->data->port_id, mtu);
 752                 return 0;
 753         }
 754         rte_errno = EAGAIN;
 755         return -rte_errno;
 756 }
 757
 758 /**
 759  * DPDK callback to get flow control status.
 760  *
 761  * @param dev
 762  *   Pointer to Ethernet device structure.
 763  * @param[out] fc_conf
 764  *   Flow control output buffer.
 765  *
 766  * @return
 767  *   0 on success, a negative errno value otherwise and rte_errno is set.
 768  */
 769 int
 770 mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 771 {
 772         struct ifreq ifr;
 773         struct ethtool_pauseparam ethpause = {
 774                 .cmd = ETHTOOL_GPAUSEPARAM
 775         };
 776         int ret;
 777
 778         ifr.ifr_data = (void *)&ethpause;
 779         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
 780         if (ret) {
 781                 DRV_LOG(WARNING,
 782                         "port %u ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM) failed:"
 783                         " %s",
 784                         dev->data->port_id, strerror(rte_errno));
 785                 return ret;
 786         }
 787         fc_conf->autoneg = ethpause.autoneg;
 788         if (ethpause.rx_pause && ethpause.tx_pause)
 789                 fc_conf->mode = RTE_FC_FULL;
 790         else if (ethpause.rx_pause)
 791                 fc_conf->mode = RTE_FC_RX_PAUSE;
 792         else if (ethpause.tx_pause)
 793                 fc_conf->mode = RTE_FC_TX_PAUSE;
 794         else
 795                 fc_conf->mode = RTE_FC_NONE;
 796         return 0;
 797 }
 798
 799 /**
 800  * DPDK callback to modify flow control parameters.
 801  *
 802  * @param dev
 803  *   Pointer to Ethernet device structure.
 804  * @param[in] fc_conf
 805  *   Flow control parameters.
 806  *
 807  * @return
 808  *   0 on success, a negative errno value otherwise and rte_errno is set.
 809  */
 810 int
 811 mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 812 {
 813         struct ifreq ifr;
 814         struct ethtool_pauseparam ethpause = {
 815                 .cmd = ETHTOOL_SPAUSEPARAM
 816         };
 817         int ret;
 818
 819         ifr.ifr_data = (void *)&ethpause;
 820         ethpause.autoneg = fc_conf->autoneg;
 821         if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
 822             (fc_conf->mode & RTE_FC_RX_PAUSE))
 823                 ethpause.rx_pause = 1;
 824         else
 825                 ethpause.rx_pause = 0;
 826
 827         if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) ||
 828             (fc_conf->mode & RTE_FC_TX_PAUSE))
 829                 ethpause.tx_pause = 1;
 830         else
 831                 ethpause.tx_pause = 0;
 832         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
 833         if (ret) {
 834                 DRV_LOG(WARNING,
 835                         "port %u ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)"
 836                         " failed: %s",
 837                         dev->data->port_id, strerror(rte_errno));
 838                 return ret;
 839         }
 840         return 0;
 841 }
 842
 843 /**
 844  * Get PCI information from struct ibv_device.
 845  *
 846  * @param device
 847  *   Pointer to Ethernet device structure.
 848  * @param[out] pci_addr
 849  *   PCI bus address output buffer.
 850  *
 851  * @return
 852  *   0 on success, a negative errno value otherwise and rte_errno is set.
 853  */
 854 int
 855 mlx5_ibv_device_to_pci_addr(const struct ibv_device *device,
 856                             struct rte_pci_addr *pci_addr)
 857 {
 858         FILE *file;
 859         char line[32];
 860         MKSTR(path, "%s/device/uevent", device->ibdev_path);
 861
 862         file = fopen(path, "rb");
 863         if (file == NULL) {
 864                 rte_errno = errno;
 865                 return -rte_errno;
 866         }
 867         while (fgets(line, sizeof(line), file) == line) {
 868                 size_t len = strlen(line);
 869                 int ret;
 870
 871                 /* Truncate long lines. */
 872                 if (len == (sizeof(line) - 1))
 873                         while (line[(len - 1)] != '\n') {
 874                                 ret = fgetc(file);
 875                                 if (ret == EOF)
 876                                         break;
 877                                 line[(len - 1)] = ret;
 878                         }
 879                 /* Extract information. */
 880                 if (sscanf(line,
 881                            "PCI_SLOT_NAME="
 882                            "%" SCNx32 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n",
 883                            &pci_addr->domain,
 884                            &pci_addr->bus,
 885                            &pci_addr->devid,
 886                            &pci_addr->function) == 4) {
 887                         ret = 0;
 888                         break;
 889                 }
 890         }
 891         fclose(file);
 892         return 0;
 893 }
 894
 895 /**
 896  * Device status handler.
 897  *
 898  * @param dev
 899  *   Pointer to Ethernet device.
 900  * @param events
 901  *   Pointer to event flags holder.
 902  *
 903  * @return
 904  *   Events bitmap of callback process which can be called immediately.
 905  */
 906 static uint32_t
 907 mlx5_dev_status_handler(struct rte_eth_dev *dev)
 908 {
 909         struct priv *priv = dev->data->dev_private;
 910         struct ibv_async_event event;
 911         uint32_t ret = 0;
 912
 913         if (mlx5_link_update(dev, 0) == -EAGAIN) {
 914                 usleep(0);
 915                 return 0;
 916         }
 917         /* Read all message and acknowledge them. */
 918         for (;;) {
 919                 if (ibv_get_async_event(priv->ctx, &event))
 920                         break;
 921                 if ((event.event_type == IBV_EVENT_PORT_ACTIVE ||
 922                         event.event_type == IBV_EVENT_PORT_ERR) &&
 923                         (dev->data->dev_conf.intr_conf.lsc == 1))
 924                         ret |= (1 << RTE_ETH_EVENT_INTR_LSC);
 925                 else if (event.event_type == IBV_EVENT_DEVICE_FATAL &&
 926                         dev->data->dev_conf.intr_conf.rmv == 1)
 927                         ret |= (1 << RTE_ETH_EVENT_INTR_RMV);
 928                 else
 929                         DRV_LOG(DEBUG,
 930                                 "port %u event type %d on not handled",
 931                                 dev->data->port_id, event.event_type);
 932                 ibv_ack_async_event(&event);
 933         }
 934         return ret;
 935 }
 936
 937 /**
 938  * Handle interrupts from the NIC.
 939  *
 940  * @param[in] intr_handle
 941  *   Interrupt handler.
 942  * @param cb_arg
 943  *   Callback argument.
 944  */
 945 void
 946 mlx5_dev_interrupt_handler(void *cb_arg)
 947 {
 948         struct rte_eth_dev *dev = cb_arg;
 949         uint32_t events;
 950
 951         events = mlx5_dev_status_handler(dev);
 952         if (events & (1 << RTE_ETH_EVENT_INTR_LSC))
 953                 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL,
 954                                               NULL);
 955         if (events & (1 << RTE_ETH_EVENT_INTR_RMV))
 956                 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RMV, NULL,
 957                                               NULL);
 958 }
 959
 960 /**
 961  * Handle interrupts from the socket.
 962  *
 963  * @param cb_arg
 964  *   Callback argument.
 965  */
 966 static void
 967 mlx5_dev_handler_socket(void *cb_arg)
 968 {
 969         struct rte_eth_dev *dev = cb_arg;
 970
 971         mlx5_socket_handle(dev);
 972 }
 973
 974 /**
 975  * Uninstall interrupt handler.
 976  *
 977  * @param dev
 978  *   Pointer to Ethernet device.
 979  */
 980 void
 981 mlx5_dev_interrupt_handler_uninstall(struct rte_eth_dev *dev)
 982 {
 983         struct priv *priv = dev->data->dev_private;
 984
 985         if (dev->data->dev_conf.intr_conf.lsc ||
 986             dev->data->dev_conf.intr_conf.rmv)
 987                 rte_intr_callback_unregister(&priv->intr_handle,
 988                                              mlx5_dev_interrupt_handler, dev);
 989         if (priv->primary_socket)
 990                 rte_intr_callback_unregister(&priv->intr_handle_socket,
 991                                              mlx5_dev_handler_socket, dev);
 992         priv->intr_handle.fd = 0;
 993         priv->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
 994         priv->intr_handle_socket.fd = 0;
 995         priv->intr_handle_socket.type = RTE_INTR_HANDLE_UNKNOWN;
 996 }
 997
 998 /**
 999  * Install interrupt handler.
1000  *
1001  * @param dev
1002  *   Pointer to Ethernet device.
1003  */
1004 void
1005 mlx5_dev_interrupt_handler_install(struct rte_eth_dev *dev)
1006 {
1007         struct priv *priv = dev->data->dev_private;
1008         int ret;
1009         int flags;
1010
1011         assert(priv->ctx->async_fd > 0);
1012         flags = fcntl(priv->ctx->async_fd, F_GETFL);
1013         ret = fcntl(priv->ctx->async_fd, F_SETFL, flags | O_NONBLOCK);
1014         if (ret) {
1015                 DRV_LOG(INFO,
1016                         "port %u failed to change file descriptor async event"
1017                         " queue",
1018                         dev->data->port_id);
1019                 dev->data->dev_conf.intr_conf.lsc = 0;
1020                 dev->data->dev_conf.intr_conf.rmv = 0;
1021         }
1022         if (dev->data->dev_conf.intr_conf.lsc ||
1023             dev->data->dev_conf.intr_conf.rmv) {
1024                 priv->intr_handle.fd = priv->ctx->async_fd;
1025                 priv->intr_handle.type = RTE_INTR_HANDLE_EXT;
1026                 rte_intr_callback_register(&priv->intr_handle,
1027                                            mlx5_dev_interrupt_handler, dev);
1028         }
1029         ret = mlx5_socket_init(dev);
1030         if (ret)
1031                 DRV_LOG(ERR, "port %u cannot initialise socket: %s",
1032                         dev->data->port_id, strerror(rte_errno));
1033         else if (priv->primary_socket) {
1034                 priv->intr_handle_socket.fd = priv->primary_socket;
1035                 priv->intr_handle_socket.type = RTE_INTR_HANDLE_EXT;
1036                 rte_intr_callback_register(&priv->intr_handle_socket,
1037                                            mlx5_dev_handler_socket, dev);
1038         }
1039 }
1040
1041 /**
1042  * DPDK callback to bring the link DOWN.
1043  *
1044  * @param dev
1045  *   Pointer to Ethernet device structure.
1046  *
1047  * @return
1048  *   0 on success, a negative errno value otherwise and rte_errno is set.
1049  */
1050 int
1051 mlx5_set_link_down(struct rte_eth_dev *dev)
1052 {
1053         return mlx5_set_flags(dev, ~IFF_UP, ~IFF_UP);
1054 }
1055
1056 /**
1057  * DPDK callback to bring the link UP.
1058  *
1059  * @param dev
1060  *   Pointer to Ethernet device structure.
1061  *
1062  * @return
1063  *   0 on success, a negative errno value otherwise and rte_errno is set.
1064  */
1065 int
1066 mlx5_set_link_up(struct rte_eth_dev *dev)
1067 {
1068         return mlx5_set_flags(dev, ~IFF_UP, IFF_UP);
1069 }
1070
1071 /**
1072  * Configure the TX function to use.
1073  *
1074  * @param dev
1075  *   Pointer to rte_eth_dev structure.
1076  *
1077  * @return
1078  *   Pointer to selected Tx burst function.
1079  */
1080 eth_tx_burst_t
1081 mlx5_select_tx_function(struct rte_eth_dev *dev)
1082 {
1083         struct priv *priv = dev->data->dev_private;
1084         eth_tx_burst_t tx_pkt_burst = mlx5_tx_burst;
1085
1086         /* Select appropriate TX function. */
1087         if (priv->mps == MLX5_MPW_ENHANCED) {
1088                 if (mlx5_check_vec_tx_support(dev) > 0) {
1089                         if (mlx5_check_raw_vec_tx_support(dev) > 0)
1090                                 tx_pkt_burst = mlx5_tx_burst_raw_vec;
1091                         else
1092                                 tx_pkt_burst = mlx5_tx_burst_vec;
1093                         DRV_LOG(DEBUG,
1094                                 "port %u selected enhanced MPW Tx vectorized"
1095                                 " function",
1096                                 dev->data->port_id);
1097                 } else {
1098                         tx_pkt_burst = mlx5_tx_burst_empw;
1099                         DRV_LOG(DEBUG,
1100                                 "port %u selected enhanced MPW Tx function",
1101                                 dev->data->port_id);
1102                 }
1103         } else if (priv->mps && priv->txq_inline) {
1104                 tx_pkt_burst = mlx5_tx_burst_mpw_inline;
1105                 DRV_LOG(DEBUG, "port %u selected MPW inline Tx function",
1106                         dev->data->port_id);
1107         } else if (priv->mps) {
1108                 tx_pkt_burst = mlx5_tx_burst_mpw;
1109                 DRV_LOG(DEBUG, "port %u selected MPW Tx function",
1110                         dev->data->port_id);
1111         }
1112         return tx_pkt_burst;
1113 }
1114
1115 /**
1116  * Configure the RX function to use.
1117  *
1118  * @param dev
1119  *   Pointer to rte_eth_dev structure.
1120  *
1121  * @return
1122  *   Pointer to selected Rx burst function.
1123  */
1124 eth_rx_burst_t
1125 mlx5_select_rx_function(struct rte_eth_dev *dev)
1126 {
1127         eth_rx_burst_t rx_pkt_burst = mlx5_rx_burst;
1128
1129         assert(dev != NULL);
1130         if (mlx5_check_vec_rx_support(dev) > 0) {
1131                 rx_pkt_burst = mlx5_rx_burst_vec;
1132                 DRV_LOG(DEBUG, "port %u selected Rx vectorized function",
1133                         dev->data->port_id);
1134         }
1135         return rx_pkt_burst;
1136 }