1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2015 6WIND S.A. 3 * Copyright 2015 Mellanox. 4 */ 5 6 #define _GNU_SOURCE 7 8 #include <stddef.h> 9 #include <assert.h> 10 #include <inttypes.h> 11 #include <unistd.h> 12 #include <stdint.h> 13 #include <stdio.h> 14 #include <string.h> 15 #include <stdlib.h> 16 #include <errno.h> 17 #include <dirent.h> 18 #include <net/if.h> 19 #include <sys/ioctl.h> 20 #include <sys/socket.h> 21 #include <sys/utsname.h> 22 #include <netinet/in.h> 23 #include <linux/ethtool.h> 24 #include <linux/sockios.h> 25 #include <linux/version.h> 26 #include <fcntl.h> 27 #include <stdalign.h> 28 #include <sys/un.h> 29 30 #include <rte_atomic.h> 31 #include <rte_ethdev_driver.h> 32 #include <rte_bus_pci.h> 33 #include <rte_mbuf.h> 34 #include <rte_common.h> 35 #include <rte_interrupts.h> 36 #include <rte_alarm.h> 37 #include <rte_malloc.h> 38 39 #include "mlx5.h" 40 #include "mlx5_glue.h" 41 #include "mlx5_rxtx.h" 42 #include "mlx5_utils.h" 43 44 /* Add defines in case the running kernel is not the same as user headers. */ 45 #ifndef ETHTOOL_GLINKSETTINGS 46 struct ethtool_link_settings { 47 uint32_t cmd; 48 uint32_t speed; 49 uint8_t duplex; 50 uint8_t port; 51 uint8_t phy_address; 52 uint8_t autoneg; 53 uint8_t mdio_support; 54 uint8_t eth_to_mdix; 55 uint8_t eth_tp_mdix_ctrl; 56 int8_t link_mode_masks_nwords; 57 uint32_t reserved[8]; 58 uint32_t link_mode_masks[]; 59 }; 60 61 #define ETHTOOL_GLINKSETTINGS 0x0000004c 62 #define ETHTOOL_LINK_MODE_1000baseT_Full_BIT 5 63 #define ETHTOOL_LINK_MODE_Autoneg_BIT 6 64 #define ETHTOOL_LINK_MODE_1000baseKX_Full_BIT 17 65 #define ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT 18 66 #define ETHTOOL_LINK_MODE_10000baseKR_Full_BIT 19 67 #define ETHTOOL_LINK_MODE_10000baseR_FEC_BIT 20 68 #define ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT 21 69 #define ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT 22 70 #define ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT 23 71 #define ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT 24 72 #define ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT 25 73 #define ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT 26 74 #define ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT 27 75 #define ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT 28 76 #define ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT 29 77 #define ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT 30 78 #endif 79 #ifndef HAVE_ETHTOOL_LINK_MODE_25G 80 #define ETHTOOL_LINK_MODE_25000baseCR_Full_BIT 31 81 #define ETHTOOL_LINK_MODE_25000baseKR_Full_BIT 32 82 #define ETHTOOL_LINK_MODE_25000baseSR_Full_BIT 33 83 #endif 84 #ifndef HAVE_ETHTOOL_LINK_MODE_50G 85 #define ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT 34 86 #define ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT 35 87 #endif 88 #ifndef HAVE_ETHTOOL_LINK_MODE_100G 89 #define ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT 36 90 #define ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT 37 91 #define ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT 38 92 #define ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT 39 93 #endif 94 95 /** 96 * Get interface name from private structure. 97 * 98 * @param[in] priv 99 * Pointer to private structure. 100 * @param[out] ifname 101 * Interface name output buffer. 102 * 103 * @return 104 * 0 on success, -1 on failure and errno is set. 105 */ 106 int 107 priv_get_ifname(const struct priv *priv, char (*ifname)[IF_NAMESIZE]) 108 { 109 DIR *dir; 110 struct dirent *dent; 111 unsigned int dev_type = 0; 112 unsigned int dev_port_prev = ~0u; 113 char match[IF_NAMESIZE] = ""; 114 115 { 116 MKSTR(path, "%s/device/net", priv->ibdev_path); 117 118 dir = opendir(path); 119 if (dir == NULL) 120 return -1; 121 } 122 while ((dent = readdir(dir)) != NULL) { 123 char *name = dent->d_name; 124 FILE *file; 125 unsigned int dev_port; 126 int r; 127 128 if ((name[0] == '.') && 129 ((name[1] == '\0') || 130 ((name[1] == '.') && (name[2] == '\0')))) 131 continue; 132 133 MKSTR(path, "%s/device/net/%s/%s", 134 priv->ibdev_path, name, 135 (dev_type ? "dev_id" : "dev_port")); 136 137 file = fopen(path, "rb"); 138 if (file == NULL) { 139 if (errno != ENOENT) 140 continue; 141 /* 142 * Switch to dev_id when dev_port does not exist as 143 * is the case with Linux kernel versions < 3.15. 144 */ 145 try_dev_id: 146 match[0] = '\0'; 147 if (dev_type) 148 break; 149 dev_type = 1; 150 dev_port_prev = ~0u; 151 rewinddir(dir); 152 continue; 153 } 154 r = fscanf(file, (dev_type ? "%x" : "%u"), &dev_port); 155 fclose(file); 156 if (r != 1) 157 continue; 158 /* 159 * Switch to dev_id when dev_port returns the same value for 160 * all ports. May happen when using a MOFED release older than 161 * 3.0 with a Linux kernel >= 3.15. 162 */ 163 if (dev_port == dev_port_prev) 164 goto try_dev_id; 165 dev_port_prev = dev_port; 166 if (dev_port == (priv->port - 1u)) 167 snprintf(match, sizeof(match), "%s", name); 168 } 169 closedir(dir); 170 if (match[0] == '\0') 171 return -1; 172 strncpy(*ifname, match, sizeof(*ifname)); 173 return 0; 174 } 175 176 /** 177 * Perform ifreq ioctl() on associated Ethernet device. 178 * 179 * @param[in] priv 180 * Pointer to private structure. 181 * @param req 182 * Request number to pass to ioctl(). 183 * @param[out] ifr 184 * Interface request structure output buffer. 185 * 186 * @return 187 * 0 on success, -1 on failure and errno is set. 188 */ 189 int 190 priv_ifreq(const struct priv *priv, int req, struct ifreq *ifr) 191 { 192 int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); 193 int ret = -1; 194 195 if (sock == -1) 196 return ret; 197 if (priv_get_ifname(priv, &ifr->ifr_name) == 0) 198 ret = ioctl(sock, req, ifr); 199 close(sock); 200 return ret; 201 } 202 203 /** 204 * Get device MTU. 205 * 206 * @param priv 207 * Pointer to private structure. 208 * @param[out] mtu 209 * MTU value output buffer. 210 * 211 * @return 212 * 0 on success, -1 on failure and errno is set. 213 */ 214 int 215 priv_get_mtu(struct priv *priv, uint16_t *mtu) 216 { 217 struct ifreq request; 218 int ret = priv_ifreq(priv, SIOCGIFMTU, &request); 219 220 if (ret) 221 return ret; 222 *mtu = request.ifr_mtu; 223 return 0; 224 } 225 226 /** 227 * Set device MTU. 228 * 229 * @param priv 230 * Pointer to private structure. 231 * @param mtu 232 * MTU value to set. 233 * 234 * @return 235 * 0 on success, -1 on failure and errno is set. 236 */ 237 static int 238 priv_set_mtu(struct priv *priv, uint16_t mtu) 239 { 240 struct ifreq request = { .ifr_mtu = mtu, }; 241 242 return priv_ifreq(priv, SIOCSIFMTU, &request); 243 } 244 245 /** 246 * Set device flags. 247 * 248 * @param priv 249 * Pointer to private structure. 250 * @param keep 251 * Bitmask for flags that must remain untouched. 252 * @param flags 253 * Bitmask for flags to modify. 254 * 255 * @return 256 * 0 on success, -1 on failure and errno is set. 257 */ 258 int 259 priv_set_flags(struct priv *priv, unsigned int keep, unsigned int flags) 260 { 261 struct ifreq request; 262 int ret = priv_ifreq(priv, SIOCGIFFLAGS, &request); 263 264 if (ret) 265 return ret; 266 request.ifr_flags &= keep; 267 request.ifr_flags |= flags & ~keep; 268 return priv_ifreq(priv, SIOCSIFFLAGS, &request); 269 } 270 271 /** 272 * Ethernet device configuration. 273 * 274 * Prepare the driver for a given number of TX and RX queues. 275 * 276 * @param dev 277 * Pointer to Ethernet device structure. 278 * 279 * @return 280 * 0 on success, errno value on failure. 281 */ 282 static int 283 dev_configure(struct rte_eth_dev *dev) 284 { 285 struct priv *priv = dev->data->dev_private; 286 unsigned int rxqs_n = dev->data->nb_rx_queues; 287 unsigned int txqs_n = dev->data->nb_tx_queues; 288 unsigned int i; 289 unsigned int j; 290 unsigned int reta_idx_n; 291 const uint8_t use_app_rss_key = 292 !!dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key; 293 uint64_t supp_tx_offloads = mlx5_priv_get_tx_port_offloads(priv); 294 uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads; 295 uint64_t supp_rx_offloads = 296 (mlx5_priv_get_rx_port_offloads(priv) | 297 mlx5_priv_get_rx_queue_offloads(priv)); 298 uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads; 299 300 if ((tx_offloads & supp_tx_offloads) != tx_offloads) { 301 ERROR("Some Tx offloads are not supported " 302 "requested 0x%" PRIx64 " supported 0x%" PRIx64, 303 tx_offloads, supp_tx_offloads); 304 return ENOTSUP; 305 } 306 if ((rx_offloads & supp_rx_offloads) != rx_offloads) { 307 ERROR("Some Rx offloads are not supported " 308 "requested 0x%" PRIx64 " supported 0x%" PRIx64, 309 rx_offloads, supp_rx_offloads); 310 return ENOTSUP; 311 } 312 if (use_app_rss_key && 313 (dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key_len != 314 rss_hash_default_key_len)) { 315 /* MLX5 RSS only support 40bytes key. */ 316 return EINVAL; 317 } 318 priv->rss_conf.rss_key = 319 rte_realloc(priv->rss_conf.rss_key, 320 rss_hash_default_key_len, 0); 321 if (!priv->rss_conf.rss_key) { 322 ERROR("cannot allocate RSS hash key memory (%u)", rxqs_n); 323 return ENOMEM; 324 } 325 memcpy(priv->rss_conf.rss_key, 326 use_app_rss_key ? 327 dev->data->dev_conf.rx_adv_conf.rss_conf.rss_key : 328 rss_hash_default_key, 329 rss_hash_default_key_len); 330 priv->rss_conf.rss_key_len = rss_hash_default_key_len; 331 priv->rss_conf.rss_hf = dev->data->dev_conf.rx_adv_conf.rss_conf.rss_hf; 332 priv->rxqs = (void *)dev->data->rx_queues; 333 priv->txqs = (void *)dev->data->tx_queues; 334 if (txqs_n != priv->txqs_n) { 335 INFO("%p: TX queues number update: %u -> %u", 336 (void *)dev, priv->txqs_n, txqs_n); 337 priv->txqs_n = txqs_n; 338 } 339 if (rxqs_n > priv->config.ind_table_max_size) { 340 ERROR("cannot handle this many RX queues (%u)", rxqs_n); 341 return EINVAL; 342 } 343 if (rxqs_n == priv->rxqs_n) 344 return 0; 345 INFO("%p: RX queues number update: %u -> %u", 346 (void *)dev, priv->rxqs_n, rxqs_n); 347 priv->rxqs_n = rxqs_n; 348 /* If the requested number of RX queues is not a power of two, use the 349 * maximum indirection table size for better balancing. 350 * The result is always rounded to the next power of two. */ 351 reta_idx_n = (1 << log2above((rxqs_n & (rxqs_n - 1)) ? 352 priv->config.ind_table_max_size : 353 rxqs_n)); 354 if (priv_rss_reta_index_resize(priv, reta_idx_n)) 355 return ENOMEM; 356 /* When the number of RX queues is not a power of two, the remaining 357 * table entries are padded with reused WQs and hashes are not spread 358 * uniformly. */ 359 for (i = 0, j = 0; (i != reta_idx_n); ++i) { 360 (*priv->reta_idx)[i] = j; 361 if (++j == rxqs_n) 362 j = 0; 363 } 364 return 0; 365 } 366 367 /** 368 * DPDK callback for Ethernet device configuration. 369 * 370 * @param dev 371 * Pointer to Ethernet device structure. 372 * 373 * @return 374 * 0 on success, negative errno value on failure. 375 */ 376 int 377 mlx5_dev_configure(struct rte_eth_dev *dev) 378 { 379 struct priv *priv = dev->data->dev_private; 380 int ret; 381 382 priv_lock(priv); 383 ret = dev_configure(dev); 384 assert(ret >= 0); 385 priv_unlock(priv); 386 return -ret; 387 } 388 389 /** 390 * DPDK callback to get information about the device. 391 * 392 * @param dev 393 * Pointer to Ethernet device structure. 394 * @param[out] info 395 * Info structure output buffer. 396 */ 397 void 398 mlx5_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *info) 399 { 400 struct priv *priv = dev->data->dev_private; 401 struct mlx5_dev_config *config = &priv->config; 402 unsigned int max; 403 char ifname[IF_NAMESIZE]; 404 405 info->pci_dev = RTE_ETH_DEV_TO_PCI(dev); 406 407 priv_lock(priv); 408 /* FIXME: we should ask the device for these values. */ 409 info->min_rx_bufsize = 32; 410 info->max_rx_pktlen = 65536; 411 /* 412 * Since we need one CQ per QP, the limit is the minimum number 413 * between the two values. 414 */ 415 max = RTE_MIN(priv->device_attr.orig_attr.max_cq, 416 priv->device_attr.orig_attr.max_qp); 417 /* If max >= 65535 then max = 0, max_rx_queues is uint16_t. */ 418 if (max >= 65535) 419 max = 65535; 420 info->max_rx_queues = max; 421 info->max_tx_queues = max; 422 info->max_mac_addrs = RTE_DIM(priv->mac); 423 info->rx_queue_offload_capa = 424 mlx5_priv_get_rx_queue_offloads(priv); 425 info->rx_offload_capa = (mlx5_priv_get_rx_port_offloads(priv) | 426 info->rx_queue_offload_capa); 427 info->tx_offload_capa = mlx5_priv_get_tx_port_offloads(priv); 428 if (priv_get_ifname(priv, &ifname) == 0) 429 info->if_index = if_nametoindex(ifname); 430 info->reta_size = priv->reta_idx_n ? 431 priv->reta_idx_n : config->ind_table_max_size; 432 info->hash_key_size = priv->rss_conf.rss_key_len; 433 info->speed_capa = priv->link_speed_capa; 434 info->flow_type_rss_offloads = ~MLX5_RSS_HF_MASK; 435 priv_unlock(priv); 436 } 437 438 const uint32_t * 439 mlx5_dev_supported_ptypes_get(struct rte_eth_dev *dev) 440 { 441 static const uint32_t ptypes[] = { 442 /* refers to rxq_cq_to_pkt_type() */ 443 RTE_PTYPE_L2_ETHER, 444 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN, 445 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN, 446 RTE_PTYPE_L4_NONFRAG, 447 RTE_PTYPE_L4_FRAG, 448 RTE_PTYPE_L4_TCP, 449 RTE_PTYPE_L4_UDP, 450 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN, 451 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN, 452 RTE_PTYPE_INNER_L4_NONFRAG, 453 RTE_PTYPE_INNER_L4_FRAG, 454 RTE_PTYPE_INNER_L4_TCP, 455 RTE_PTYPE_INNER_L4_UDP, 456 RTE_PTYPE_UNKNOWN 457 }; 458 459 if (dev->rx_pkt_burst == mlx5_rx_burst || 460 dev->rx_pkt_burst == mlx5_rx_burst_vec) 461 return ptypes; 462 return NULL; 463 } 464 465 /** 466 * DPDK callback to retrieve physical link information. 467 * 468 * @param dev 469 * Pointer to Ethernet device structure. 470 */ 471 static int 472 mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev) 473 { 474 struct priv *priv = dev->data->dev_private; 475 struct ethtool_cmd edata = { 476 .cmd = ETHTOOL_GSET /* Deprecated since Linux v4.5. */ 477 }; 478 struct ifreq ifr; 479 struct rte_eth_link dev_link; 480 int link_speed = 0; 481 482 /* priv_lock() is not taken to allow concurrent calls. */ 483 484 if (priv_ifreq(priv, SIOCGIFFLAGS, &ifr)) { 485 WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(errno)); 486 return -1; 487 } 488 memset(&dev_link, 0, sizeof(dev_link)); 489 dev_link.link_status = ((ifr.ifr_flags & IFF_UP) && 490 (ifr.ifr_flags & IFF_RUNNING)); 491 ifr.ifr_data = (void *)&edata; 492 if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { 493 WARN("ioctl(SIOCETHTOOL, ETHTOOL_GSET) failed: %s", 494 strerror(errno)); 495 return -1; 496 } 497 link_speed = ethtool_cmd_speed(&edata); 498 if (link_speed == -1) 499 dev_link.link_speed = 0; 500 else 501 dev_link.link_speed = link_speed; 502 priv->link_speed_capa = 0; 503 if (edata.supported & SUPPORTED_Autoneg) 504 priv->link_speed_capa |= ETH_LINK_SPEED_AUTONEG; 505 if (edata.supported & (SUPPORTED_1000baseT_Full | 506 SUPPORTED_1000baseKX_Full)) 507 priv->link_speed_capa |= ETH_LINK_SPEED_1G; 508 if (edata.supported & SUPPORTED_10000baseKR_Full) 509 priv->link_speed_capa |= ETH_LINK_SPEED_10G; 510 if (edata.supported & (SUPPORTED_40000baseKR4_Full | 511 SUPPORTED_40000baseCR4_Full | 512 SUPPORTED_40000baseSR4_Full | 513 SUPPORTED_40000baseLR4_Full)) 514 priv->link_speed_capa |= ETH_LINK_SPEED_40G; 515 dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ? 516 ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX); 517 dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds & 518 ETH_LINK_SPEED_FIXED); 519 if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) { 520 /* Link status changed. */ 521 dev->data->dev_link = dev_link; 522 return 0; 523 } 524 /* Link status is still the same. */ 525 return -1; 526 } 527 528 /** 529 * Retrieve physical link information (unlocked version using new ioctl). 530 * 531 * @param dev 532 * Pointer to Ethernet device structure. 533 */ 534 static int 535 mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev) 536 { 537 struct priv *priv = dev->data->dev_private; 538 struct ethtool_link_settings gcmd = { .cmd = ETHTOOL_GLINKSETTINGS }; 539 struct ifreq ifr; 540 struct rte_eth_link dev_link; 541 uint64_t sc; 542 543 if (priv_ifreq(priv, SIOCGIFFLAGS, &ifr)) { 544 WARN("ioctl(SIOCGIFFLAGS) failed: %s", strerror(errno)); 545 return -1; 546 } 547 memset(&dev_link, 0, sizeof(dev_link)); 548 dev_link.link_status = ((ifr.ifr_flags & IFF_UP) && 549 (ifr.ifr_flags & IFF_RUNNING)); 550 ifr.ifr_data = (void *)&gcmd; 551 if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { 552 DEBUG("ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS) failed: %s", 553 strerror(errno)); 554 return -1; 555 } 556 gcmd.link_mode_masks_nwords = -gcmd.link_mode_masks_nwords; 557 558 alignas(struct ethtool_link_settings) 559 uint8_t data[offsetof(struct ethtool_link_settings, link_mode_masks) + 560 sizeof(uint32_t) * gcmd.link_mode_masks_nwords * 3]; 561 struct ethtool_link_settings *ecmd = (void *)data; 562 563 *ecmd = gcmd; 564 ifr.ifr_data = (void *)ecmd; 565 if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { 566 DEBUG("ioctl(SIOCETHTOOL, ETHTOOL_GLINKSETTINGS) failed: %s", 567 strerror(errno)); 568 return -1; 569 } 570 dev_link.link_speed = ecmd->speed; 571 sc = ecmd->link_mode_masks[0] | 572 ((uint64_t)ecmd->link_mode_masks[1] << 32); 573 priv->link_speed_capa = 0; 574 if (sc & MLX5_BITSHIFT(ETHTOOL_LINK_MODE_Autoneg_BIT)) 575 priv->link_speed_capa |= ETH_LINK_SPEED_AUTONEG; 576 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseT_Full_BIT) | 577 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT))) 578 priv->link_speed_capa |= ETH_LINK_SPEED_1G; 579 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT) | 580 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT) | 581 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseR_FEC_BIT))) 582 priv->link_speed_capa |= ETH_LINK_SPEED_10G; 583 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT) | 584 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT))) 585 priv->link_speed_capa |= ETH_LINK_SPEED_20G; 586 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT) | 587 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT) | 588 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT) | 589 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT))) 590 priv->link_speed_capa |= ETH_LINK_SPEED_40G; 591 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT) | 592 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT) | 593 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT) | 594 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT))) 595 priv->link_speed_capa |= ETH_LINK_SPEED_56G; 596 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT) | 597 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT) | 598 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseSR_Full_BIT))) 599 priv->link_speed_capa |= ETH_LINK_SPEED_25G; 600 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT) | 601 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT))) 602 priv->link_speed_capa |= ETH_LINK_SPEED_50G; 603 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT) | 604 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT) | 605 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT) | 606 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT))) 607 priv->link_speed_capa |= ETH_LINK_SPEED_100G; 608 dev_link.link_duplex = ((ecmd->duplex == DUPLEX_HALF) ? 609 ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX); 610 dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds & 611 ETH_LINK_SPEED_FIXED); 612 if (memcmp(&dev_link, &dev->data->dev_link, sizeof(dev_link))) { 613 /* Link status changed. */ 614 dev->data->dev_link = dev_link; 615 return 0; 616 } 617 /* Link status is still the same. */ 618 return -1; 619 } 620 621 /** 622 * Enable receiving and transmitting traffic. 623 * 624 * @param priv 625 * Pointer to private structure. 626 */ 627 static void 628 priv_link_start(struct priv *priv) 629 { 630 struct rte_eth_dev *dev = priv->dev; 631 int err; 632 633 dev->tx_pkt_burst = priv_select_tx_function(priv, dev); 634 dev->rx_pkt_burst = priv_select_rx_function(priv, dev); 635 err = priv_dev_traffic_enable(priv, dev); 636 if (err) 637 ERROR("%p: error occurred while configuring control flows: %s", 638 (void *)priv, strerror(err)); 639 err = priv_flow_start(priv, &priv->flows); 640 if (err) 641 ERROR("%p: error occurred while configuring flows: %s", 642 (void *)priv, strerror(err)); 643 } 644 645 /** 646 * Disable receiving and transmitting traffic. 647 * 648 * @param priv 649 * Pointer to private structure. 650 */ 651 static void 652 priv_link_stop(struct priv *priv) 653 { 654 struct rte_eth_dev *dev = priv->dev; 655 656 priv_flow_stop(priv, &priv->flows); 657 priv_dev_traffic_disable(priv, dev); 658 dev->rx_pkt_burst = removed_rx_burst; 659 dev->tx_pkt_burst = removed_tx_burst; 660 } 661 662 /** 663 * Retrieve physical link information and update rx/tx_pkt_burst callbacks 664 * accordingly. 665 * 666 * @param priv 667 * Pointer to private structure. 668 * @param wait_to_complete 669 * Wait for request completion (ignored). 670 */ 671 int 672 priv_link_update(struct priv *priv, int wait_to_complete __rte_unused) 673 { 674 struct rte_eth_dev *dev = priv->dev; 675 struct utsname utsname; 676 int ver[3]; 677 int ret; 678 struct rte_eth_link dev_link = dev->data->dev_link; 679 680 if (uname(&utsname) == -1 || 681 sscanf(utsname.release, "%d.%d.%d", 682 &ver[0], &ver[1], &ver[2]) != 3 || 683 KERNEL_VERSION(ver[0], ver[1], ver[2]) < KERNEL_VERSION(4, 9, 0)) 684 ret = mlx5_link_update_unlocked_gset(dev); 685 else 686 ret = mlx5_link_update_unlocked_gs(dev); 687 /* If lsc interrupt is disabled, should always be ready for traffic. */ 688 if (!dev->data->dev_conf.intr_conf.lsc) { 689 priv_link_start(priv); 690 return ret; 691 } 692 /* Re-select burst callbacks only if link status has been changed. */ 693 if (!ret && dev_link.link_status != dev->data->dev_link.link_status) { 694 if (dev->data->dev_link.link_status == ETH_LINK_UP) 695 priv_link_start(priv); 696 else 697 priv_link_stop(priv); 698 } 699 return ret; 700 } 701 702 /** 703 * Querying the link status till it changes to the desired state. 704 * Number of query attempts is bounded by MLX5_MAX_LINK_QUERY_ATTEMPTS. 705 * 706 * @param priv 707 * Pointer to private structure. 708 * @param status 709 * Link desired status. 710 * 711 * @return 712 * 0 on success, negative errno value on failure. 713 */ 714 int 715 priv_force_link_status_change(struct priv *priv, int status) 716 { 717 int try = 0; 718 719 while (try < MLX5_MAX_LINK_QUERY_ATTEMPTS) { 720 priv_link_update(priv, 0); 721 if (priv->dev->data->dev_link.link_status == status) 722 return 0; 723 try++; 724 sleep(1); 725 } 726 return -EAGAIN; 727 } 728 729 /** 730 * DPDK callback to retrieve physical link information. 731 * 732 * @param dev 733 * Pointer to Ethernet device structure. 734 * @param wait_to_complete 735 * Wait for request completion (ignored). 736 */ 737 int 738 mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused) 739 { 740 struct priv *priv = dev->data->dev_private; 741 int ret; 742 743 priv_lock(priv); 744 ret = priv_link_update(priv, wait_to_complete); 745 priv_unlock(priv); 746 return ret; 747 } 748 749 /** 750 * DPDK callback to change the MTU. 751 * 752 * @param dev 753 * Pointer to Ethernet device structure. 754 * @param in_mtu 755 * New MTU. 756 * 757 * @return 758 * 0 on success, negative errno value on failure. 759 */ 760 int 761 mlx5_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) 762 { 763 struct priv *priv = dev->data->dev_private; 764 uint16_t kern_mtu; 765 int ret = 0; 766 767 priv_lock(priv); 768 ret = priv_get_mtu(priv, &kern_mtu); 769 if (ret) 770 goto out; 771 /* Set kernel interface MTU first. */ 772 ret = priv_set_mtu(priv, mtu); 773 if (ret) 774 goto out; 775 ret = priv_get_mtu(priv, &kern_mtu); 776 if (ret) 777 goto out; 778 if (kern_mtu == mtu) { 779 priv->mtu = mtu; 780 DEBUG("adapter port %u MTU set to %u", priv->port, mtu); 781 } 782 priv_unlock(priv); 783 return 0; 784 out: 785 ret = errno; 786 WARN("cannot set port %u MTU to %u: %s", priv->port, mtu, 787 strerror(ret)); 788 priv_unlock(priv); 789 assert(ret >= 0); 790 return -ret; 791 } 792 793 /** 794 * DPDK callback to get flow control status. 795 * 796 * @param dev 797 * Pointer to Ethernet device structure. 798 * @param[out] fc_conf 799 * Flow control output buffer. 800 * 801 * @return 802 * 0 on success, negative errno value on failure. 803 */ 804 int 805 mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) 806 { 807 struct priv *priv = dev->data->dev_private; 808 struct ifreq ifr; 809 struct ethtool_pauseparam ethpause = { 810 .cmd = ETHTOOL_GPAUSEPARAM 811 }; 812 int ret; 813 814 ifr.ifr_data = (void *)ðpause; 815 priv_lock(priv); 816 if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { 817 ret = errno; 818 WARN("ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM)" 819 " failed: %s", 820 strerror(ret)); 821 goto out; 822 } 823 824 fc_conf->autoneg = ethpause.autoneg; 825 if (ethpause.rx_pause && ethpause.tx_pause) 826 fc_conf->mode = RTE_FC_FULL; 827 else if (ethpause.rx_pause) 828 fc_conf->mode = RTE_FC_RX_PAUSE; 829 else if (ethpause.tx_pause) 830 fc_conf->mode = RTE_FC_TX_PAUSE; 831 else 832 fc_conf->mode = RTE_FC_NONE; 833 ret = 0; 834 835 out: 836 priv_unlock(priv); 837 assert(ret >= 0); 838 return -ret; 839 } 840 841 /** 842 * DPDK callback to modify flow control parameters. 843 * 844 * @param dev 845 * Pointer to Ethernet device structure. 846 * @param[in] fc_conf 847 * Flow control parameters. 848 * 849 * @return 850 * 0 on success, negative errno value on failure. 851 */ 852 int 853 mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) 854 { 855 struct priv *priv = dev->data->dev_private; 856 struct ifreq ifr; 857 struct ethtool_pauseparam ethpause = { 858 .cmd = ETHTOOL_SPAUSEPARAM 859 }; 860 int ret; 861 862 ifr.ifr_data = (void *)ðpause; 863 ethpause.autoneg = fc_conf->autoneg; 864 if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || 865 (fc_conf->mode & RTE_FC_RX_PAUSE)) 866 ethpause.rx_pause = 1; 867 else 868 ethpause.rx_pause = 0; 869 870 if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || 871 (fc_conf->mode & RTE_FC_TX_PAUSE)) 872 ethpause.tx_pause = 1; 873 else 874 ethpause.tx_pause = 0; 875 876 priv_lock(priv); 877 if (priv_ifreq(priv, SIOCETHTOOL, &ifr)) { 878 ret = errno; 879 WARN("ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)" 880 " failed: %s", 881 strerror(ret)); 882 goto out; 883 } 884 ret = 0; 885 886 out: 887 priv_unlock(priv); 888 assert(ret >= 0); 889 return -ret; 890 } 891 892 /** 893 * Get PCI information from struct ibv_device. 894 * 895 * @param device 896 * Pointer to Ethernet device structure. 897 * @param[out] pci_addr 898 * PCI bus address output buffer. 899 * 900 * @return 901 * 0 on success, -1 on failure and errno is set. 902 */ 903 int 904 mlx5_ibv_device_to_pci_addr(const struct ibv_device *device, 905 struct rte_pci_addr *pci_addr) 906 { 907 FILE *file; 908 char line[32]; 909 MKSTR(path, "%s/device/uevent", device->ibdev_path); 910 911 file = fopen(path, "rb"); 912 if (file == NULL) 913 return -1; 914 while (fgets(line, sizeof(line), file) == line) { 915 size_t len = strlen(line); 916 int ret; 917 918 /* Truncate long lines. */ 919 if (len == (sizeof(line) - 1)) 920 while (line[(len - 1)] != '\n') { 921 ret = fgetc(file); 922 if (ret == EOF) 923 break; 924 line[(len - 1)] = ret; 925 } 926 /* Extract information. */ 927 if (sscanf(line, 928 "PCI_SLOT_NAME=" 929 "%" SCNx32 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n", 930 &pci_addr->domain, 931 &pci_addr->bus, 932 &pci_addr->devid, 933 &pci_addr->function) == 4) { 934 ret = 0; 935 break; 936 } 937 } 938 fclose(file); 939 return 0; 940 } 941 942 /** 943 * Update the link status. 944 * 945 * @param priv 946 * Pointer to private structure. 947 * 948 * @return 949 * Zero if the callback process can be called immediately. 950 */ 951 static int 952 priv_link_status_update(struct priv *priv) 953 { 954 struct rte_eth_link *link = &priv->dev->data->dev_link; 955 956 priv_link_update(priv, 0); 957 if (((link->link_speed == 0) && link->link_status) || 958 ((link->link_speed != 0) && !link->link_status)) { 959 /* 960 * Inconsistent status. Event likely occurred before the 961 * kernel netdevice exposes the new status. 962 */ 963 if (!priv->pending_alarm) { 964 priv->pending_alarm = 1; 965 rte_eal_alarm_set(MLX5_ALARM_TIMEOUT_US, 966 mlx5_dev_link_status_handler, 967 priv->dev); 968 } 969 return 1; 970 } else if (unlikely(priv->pending_alarm)) { 971 /* Link interrupt occurred while alarm is already scheduled. */ 972 priv->pending_alarm = 0; 973 rte_eal_alarm_cancel(mlx5_dev_link_status_handler, priv->dev); 974 } 975 return 0; 976 } 977 978 /** 979 * Device status handler. 980 * 981 * @param priv 982 * Pointer to private structure. 983 * @param events 984 * Pointer to event flags holder. 985 * 986 * @return 987 * Events bitmap of callback process which can be called immediately. 988 */ 989 static uint32_t 990 priv_dev_status_handler(struct priv *priv) 991 { 992 struct ibv_async_event event; 993 uint32_t ret = 0; 994 995 /* Read all message and acknowledge them. */ 996 for (;;) { 997 if (mlx5_glue->get_async_event(priv->ctx, &event)) 998 break; 999 if ((event.event_type == IBV_EVENT_PORT_ACTIVE || 1000 event.event_type == IBV_EVENT_PORT_ERR) && 1001 (priv->dev->data->dev_conf.intr_conf.lsc == 1)) 1002 ret |= (1 << RTE_ETH_EVENT_INTR_LSC); 1003 else if (event.event_type == IBV_EVENT_DEVICE_FATAL && 1004 priv->dev->data->dev_conf.intr_conf.rmv == 1) 1005 ret |= (1 << RTE_ETH_EVENT_INTR_RMV); 1006 else 1007 DEBUG("event type %d on port %d not handled", 1008 event.event_type, event.element.port_num); 1009 mlx5_glue->ack_async_event(&event); 1010 } 1011 if (ret & (1 << RTE_ETH_EVENT_INTR_LSC)) 1012 if (priv_link_status_update(priv)) 1013 ret &= ~(1 << RTE_ETH_EVENT_INTR_LSC); 1014 return ret; 1015 } 1016 1017 /** 1018 * Handle delayed link status event. 1019 * 1020 * @param arg 1021 * Registered argument. 1022 */ 1023 void 1024 mlx5_dev_link_status_handler(void *arg) 1025 { 1026 struct rte_eth_dev *dev = arg; 1027 struct priv *priv = dev->data->dev_private; 1028 int ret; 1029 1030 while (!priv_trylock(priv)) { 1031 /* Alarm is being canceled. */ 1032 if (priv->pending_alarm == 0) 1033 return; 1034 rte_pause(); 1035 } 1036 priv->pending_alarm = 0; 1037 ret = priv_link_status_update(priv); 1038 priv_unlock(priv); 1039 if (!ret) 1040 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL); 1041 } 1042 1043 /** 1044 * Handle interrupts from the NIC. 1045 * 1046 * @param[in] intr_handle 1047 * Interrupt handler. 1048 * @param cb_arg 1049 * Callback argument. 1050 */ 1051 void 1052 mlx5_dev_interrupt_handler(void *cb_arg) 1053 { 1054 struct rte_eth_dev *dev = cb_arg; 1055 struct priv *priv = dev->data->dev_private; 1056 uint32_t events; 1057 1058 priv_lock(priv); 1059 events = priv_dev_status_handler(priv); 1060 priv_unlock(priv); 1061 if (events & (1 << RTE_ETH_EVENT_INTR_LSC)) 1062 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL); 1063 if (events & (1 << RTE_ETH_EVENT_INTR_RMV)) 1064 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_RMV, NULL); 1065 } 1066 1067 /** 1068 * Handle interrupts from the socket. 1069 * 1070 * @param cb_arg 1071 * Callback argument. 1072 */ 1073 static void 1074 mlx5_dev_handler_socket(void *cb_arg) 1075 { 1076 struct rte_eth_dev *dev = cb_arg; 1077 struct priv *priv = dev->data->dev_private; 1078 1079 priv_lock(priv); 1080 priv_socket_handle(priv); 1081 priv_unlock(priv); 1082 } 1083 1084 /** 1085 * Uninstall interrupt handler. 1086 * 1087 * @param priv 1088 * Pointer to private structure. 1089 * @param dev 1090 * Pointer to the rte_eth_dev structure. 1091 */ 1092 void 1093 priv_dev_interrupt_handler_uninstall(struct priv *priv, struct rte_eth_dev *dev) 1094 { 1095 if (dev->data->dev_conf.intr_conf.lsc || 1096 dev->data->dev_conf.intr_conf.rmv) 1097 rte_intr_callback_unregister(&priv->intr_handle, 1098 mlx5_dev_interrupt_handler, dev); 1099 if (priv->primary_socket) 1100 rte_intr_callback_unregister(&priv->intr_handle_socket, 1101 mlx5_dev_handler_socket, dev); 1102 if (priv->pending_alarm) { 1103 priv->pending_alarm = 0; 1104 rte_eal_alarm_cancel(mlx5_dev_link_status_handler, dev); 1105 } 1106 priv->intr_handle.fd = 0; 1107 priv->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN; 1108 priv->intr_handle_socket.fd = 0; 1109 priv->intr_handle_socket.type = RTE_INTR_HANDLE_UNKNOWN; 1110 } 1111 1112 /** 1113 * Install interrupt handler. 1114 * 1115 * @param priv 1116 * Pointer to private structure. 1117 * @param dev 1118 * Pointer to the rte_eth_dev structure. 1119 */ 1120 void 1121 priv_dev_interrupt_handler_install(struct priv *priv, struct rte_eth_dev *dev) 1122 { 1123 int rc, flags; 1124 1125 assert(priv->ctx->async_fd > 0); 1126 flags = fcntl(priv->ctx->async_fd, F_GETFL); 1127 rc = fcntl(priv->ctx->async_fd, F_SETFL, flags | O_NONBLOCK); 1128 if (rc < 0) { 1129 INFO("failed to change file descriptor async event queue"); 1130 dev->data->dev_conf.intr_conf.lsc = 0; 1131 dev->data->dev_conf.intr_conf.rmv = 0; 1132 } 1133 if (dev->data->dev_conf.intr_conf.lsc || 1134 dev->data->dev_conf.intr_conf.rmv) { 1135 priv->intr_handle.fd = priv->ctx->async_fd; 1136 priv->intr_handle.type = RTE_INTR_HANDLE_EXT; 1137 rte_intr_callback_register(&priv->intr_handle, 1138 mlx5_dev_interrupt_handler, dev); 1139 } 1140 1141 rc = priv_socket_init(priv); 1142 if (!rc && priv->primary_socket) { 1143 priv->intr_handle_socket.fd = priv->primary_socket; 1144 priv->intr_handle_socket.type = RTE_INTR_HANDLE_EXT; 1145 rte_intr_callback_register(&priv->intr_handle_socket, 1146 mlx5_dev_handler_socket, dev); 1147 } 1148 } 1149 1150 /** 1151 * Change the link state (UP / DOWN). 1152 * 1153 * @param priv 1154 * Pointer to private data structure. 1155 * @param up 1156 * Nonzero for link up, otherwise link down. 1157 * 1158 * @return 1159 * 0 on success, errno value on failure. 1160 */ 1161 static int 1162 priv_dev_set_link(struct priv *priv, int up) 1163 { 1164 return priv_set_flags(priv, ~IFF_UP, up ? IFF_UP : ~IFF_UP); 1165 } 1166 1167 /** 1168 * DPDK callback to bring the link DOWN. 1169 * 1170 * @param dev 1171 * Pointer to Ethernet device structure. 1172 * 1173 * @return 1174 * 0 on success, errno value on failure. 1175 */ 1176 int 1177 mlx5_set_link_down(struct rte_eth_dev *dev) 1178 { 1179 struct priv *priv = dev->data->dev_private; 1180 int err; 1181 1182 priv_lock(priv); 1183 err = priv_dev_set_link(priv, 0); 1184 priv_unlock(priv); 1185 return err; 1186 } 1187 1188 /** 1189 * DPDK callback to bring the link UP. 1190 * 1191 * @param dev 1192 * Pointer to Ethernet device structure. 1193 * 1194 * @return 1195 * 0 on success, errno value on failure. 1196 */ 1197 int 1198 mlx5_set_link_up(struct rte_eth_dev *dev) 1199 { 1200 struct priv *priv = dev->data->dev_private; 1201 int err; 1202 1203 priv_lock(priv); 1204 err = priv_dev_set_link(priv, 1); 1205 priv_unlock(priv); 1206 return err; 1207 } 1208 1209 /** 1210 * Configure the TX function to use. 1211 * 1212 * @param priv 1213 * Pointer to private data structure. 1214 * @param dev 1215 * Pointer to rte_eth_dev structure. 1216 * 1217 * @return 1218 * Pointer to selected Tx burst function. 1219 */ 1220 eth_tx_burst_t 1221 priv_select_tx_function(struct priv *priv, struct rte_eth_dev *dev) 1222 { 1223 eth_tx_burst_t tx_pkt_burst = mlx5_tx_burst; 1224 struct mlx5_dev_config *config = &priv->config; 1225 uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads; 1226 int tso = !!(tx_offloads & (DEV_TX_OFFLOAD_TCP_TSO | 1227 DEV_TX_OFFLOAD_VXLAN_TNL_TSO | 1228 DEV_TX_OFFLOAD_GRE_TNL_TSO)); 1229 int vlan_insert = !!(tx_offloads & DEV_TX_OFFLOAD_VLAN_INSERT); 1230 1231 assert(priv != NULL); 1232 /* Select appropriate TX function. */ 1233 if (vlan_insert || tso) 1234 return tx_pkt_burst; 1235 if (config->mps == MLX5_MPW_ENHANCED) { 1236 if (priv_check_vec_tx_support(priv, dev) > 0) { 1237 if (priv_check_raw_vec_tx_support(priv, dev) > 0) 1238 tx_pkt_burst = mlx5_tx_burst_raw_vec; 1239 else 1240 tx_pkt_burst = mlx5_tx_burst_vec; 1241 DEBUG("selected Enhanced MPW TX vectorized function"); 1242 } else { 1243 tx_pkt_burst = mlx5_tx_burst_empw; 1244 DEBUG("selected Enhanced MPW TX function"); 1245 } 1246 } else if (config->mps && (config->txq_inline > 0)) { 1247 tx_pkt_burst = mlx5_tx_burst_mpw_inline; 1248 DEBUG("selected MPW inline TX function"); 1249 } else if (config->mps) { 1250 tx_pkt_burst = mlx5_tx_burst_mpw; 1251 DEBUG("selected MPW TX function"); 1252 } 1253 return tx_pkt_burst; 1254 } 1255 1256 /** 1257 * Configure the RX function to use. 1258 * 1259 * @param priv 1260 * Pointer to private data structure. 1261 * @param dev 1262 * Pointer to rte_eth_dev structure. 1263 * 1264 * @return 1265 * Pointer to selected Rx burst function. 1266 */ 1267 eth_rx_burst_t 1268 priv_select_rx_function(struct priv *priv, __rte_unused struct rte_eth_dev *dev) 1269 { 1270 eth_rx_burst_t rx_pkt_burst = mlx5_rx_burst; 1271 1272 assert(priv != NULL); 1273 if (priv_check_vec_rx_support(priv) > 0) { 1274 rx_pkt_burst = mlx5_rx_burst_vec; 1275 DEBUG("selected RX vectorized function"); 1276 } 1277 return rx_pkt_burst; 1278 } 1279 1280 /** 1281 * Check if mlx5 device was removed. 1282 * 1283 * @param dev 1284 * Pointer to Ethernet device structure. 1285 * 1286 * @return 1287 * 1 when device is removed, otherwise 0. 1288 */ 1289 int 1290 mlx5_is_removed(struct rte_eth_dev *dev) 1291 { 1292 struct ibv_device_attr device_attr; 1293 struct priv *priv = dev->data->dev_private; 1294 1295 if (mlx5_glue->query_device(priv->ctx, &device_attr) == EIO) 1296 return 1; 1297 return 0; 1298 } 1299