1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2015 6WIND S.A. 3 * Copyright 2015 Mellanox Technologies, Ltd 4 */ 5 6 #include <stddef.h> 7 #include <inttypes.h> 8 #include <unistd.h> 9 #include <stdbool.h> 10 #include <stdint.h> 11 #include <stdio.h> 12 #include <string.h> 13 #include <stdlib.h> 14 #include <errno.h> 15 #include <dirent.h> 16 #include <net/if.h> 17 #include <sys/ioctl.h> 18 #include <sys/socket.h> 19 #include <netinet/in.h> 20 #include <linux/ethtool.h> 21 #include <linux/sockios.h> 22 #include <fcntl.h> 23 #include <stdalign.h> 24 #include <sys/un.h> 25 #include <time.h> 26 27 #include <ethdev_driver.h> 28 #include <rte_bus_pci.h> 29 #include <rte_mbuf.h> 30 #include <rte_common.h> 31 #include <rte_interrupts.h> 32 #include <rte_malloc.h> 33 #include <rte_string_fns.h> 34 #include <rte_rwlock.h> 35 #include <rte_cycles.h> 36 37 #include <mlx5_glue.h> 38 #include <mlx5_devx_cmds.h> 39 #include <mlx5_common.h> 40 #include <mlx5_malloc.h> 41 42 #include "mlx5.h" 43 #include "mlx5_rxtx.h" 44 #include "mlx5_utils.h" 45 46 /* Supported speed values found in /usr/include/linux/ethtool.h */ 47 #ifndef HAVE_SUPPORTED_40000baseKR4_Full 48 #define SUPPORTED_40000baseKR4_Full (1 << 23) 49 #endif 50 #ifndef HAVE_SUPPORTED_40000baseCR4_Full 51 #define SUPPORTED_40000baseCR4_Full (1 << 24) 52 #endif 53 #ifndef HAVE_SUPPORTED_40000baseSR4_Full 54 #define SUPPORTED_40000baseSR4_Full (1 << 25) 55 #endif 56 #ifndef HAVE_SUPPORTED_40000baseLR4_Full 57 #define SUPPORTED_40000baseLR4_Full (1 << 26) 58 #endif 59 #ifndef HAVE_SUPPORTED_56000baseKR4_Full 60 #define SUPPORTED_56000baseKR4_Full (1 << 27) 61 #endif 62 #ifndef HAVE_SUPPORTED_56000baseCR4_Full 63 #define SUPPORTED_56000baseCR4_Full (1 << 28) 64 #endif 65 #ifndef HAVE_SUPPORTED_56000baseSR4_Full 66 #define SUPPORTED_56000baseSR4_Full (1 << 29) 67 #endif 68 #ifndef HAVE_SUPPORTED_56000baseLR4_Full 69 #define SUPPORTED_56000baseLR4_Full (1 << 30) 70 #endif 71 72 /* Add defines in case the running kernel is not the same as user headers. */ 73 #ifndef ETHTOOL_GLINKSETTINGS 74 struct ethtool_link_settings { 75 uint32_t cmd; 76 uint32_t speed; 77 uint8_t duplex; 78 uint8_t port; 79 uint8_t phy_address; 80 uint8_t autoneg; 81 uint8_t mdio_support; 82 uint8_t eth_to_mdix; 83 uint8_t eth_tp_mdix_ctrl; 84 int8_t link_mode_masks_nwords; 85 uint32_t reserved[8]; 86 uint32_t link_mode_masks[]; 87 }; 88 89 /* The kernel values can be found in /include/uapi/linux/ethtool.h */ 90 #define ETHTOOL_GLINKSETTINGS 0x0000004c 91 #define ETHTOOL_LINK_MODE_1000baseT_Full_BIT 5 92 #define ETHTOOL_LINK_MODE_Autoneg_BIT 6 93 #define ETHTOOL_LINK_MODE_1000baseKX_Full_BIT 17 94 #define ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT 18 95 #define ETHTOOL_LINK_MODE_10000baseKR_Full_BIT 19 96 #define ETHTOOL_LINK_MODE_10000baseR_FEC_BIT 20 97 #define ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT 21 98 #define ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT 22 99 #define ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT 23 100 #define ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT 24 101 #define ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT 25 102 #define ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT 26 103 #define ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT 27 104 #define ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT 28 105 #define ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT 29 106 #define ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT 30 107 #endif 108 #ifndef HAVE_ETHTOOL_LINK_MODE_25G 109 #define ETHTOOL_LINK_MODE_25000baseCR_Full_BIT 31 110 #define ETHTOOL_LINK_MODE_25000baseKR_Full_BIT 32 111 #define ETHTOOL_LINK_MODE_25000baseSR_Full_BIT 33 112 #endif 113 #ifndef HAVE_ETHTOOL_LINK_MODE_50G 114 #define ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT 34 115 #define ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT 35 116 #endif 117 #ifndef HAVE_ETHTOOL_LINK_MODE_100G 118 #define ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT 36 119 #define ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT 37 120 #define ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT 38 121 #define ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT 39 122 #endif 123 #ifndef HAVE_ETHTOOL_LINK_MODE_200G 124 #define ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT 62 125 #define ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT 63 126 #define ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT 0 /* 64 - 64 */ 127 #define ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT 1 /* 65 - 64 */ 128 #define ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT 2 /* 66 - 64 */ 129 #endif 130 131 132 /** 133 * Get interface name from private structure. 134 * 135 * This is a port representor-aware version of mlx5_get_ifname_sysfs(). 136 * 137 * @param[in] dev 138 * Pointer to Ethernet device. 139 * @param[out] ifname 140 * Interface name output buffer. 141 * 142 * @return 143 * 0 on success, a negative errno value otherwise and rte_errno is set. 144 */ 145 int 146 mlx5_get_ifname(const struct rte_eth_dev *dev, char (*ifname)[MLX5_NAMESIZE]) 147 { 148 struct mlx5_priv *priv = dev->data->dev_private; 149 unsigned int ifindex; 150 151 MLX5_ASSERT(priv); 152 MLX5_ASSERT(priv->sh); 153 if (priv->master && priv->sh->bond.ifindex > 0) { 154 memcpy(ifname, priv->sh->bond.ifname, MLX5_NAMESIZE); 155 return 0; 156 } 157 ifindex = mlx5_ifindex(dev); 158 if (!ifindex) { 159 if (!priv->representor) 160 return mlx5_get_ifname_sysfs(priv->sh->ibdev_path, 161 *ifname); 162 rte_errno = ENXIO; 163 return -rte_errno; 164 } 165 if (if_indextoname(ifindex, &(*ifname)[0])) 166 return 0; 167 rte_errno = errno; 168 return -rte_errno; 169 } 170 171 /** 172 * Perform ifreq ioctl() on associated netdev ifname. 173 * 174 * @param[in] ifname 175 * Pointer to netdev name. 176 * @param req 177 * Request number to pass to ioctl(). 178 * @param[out] ifr 179 * Interface request structure output buffer. 180 * 181 * @return 182 * 0 on success, a negative errno value otherwise and rte_errno is set. 183 */ 184 static int 185 mlx5_ifreq_by_ifname(const char *ifname, int req, struct ifreq *ifr) 186 { 187 int sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP); 188 int ret = 0; 189 190 if (sock == -1) { 191 rte_errno = errno; 192 return -rte_errno; 193 } 194 rte_strscpy(ifr->ifr_name, ifname, sizeof(ifr->ifr_name)); 195 ret = ioctl(sock, req, ifr); 196 if (ret == -1) { 197 rte_errno = errno; 198 goto error; 199 } 200 close(sock); 201 return 0; 202 error: 203 close(sock); 204 return -rte_errno; 205 } 206 207 /** 208 * Perform ifreq ioctl() on associated Ethernet device. 209 * 210 * @param[in] dev 211 * Pointer to Ethernet device. 212 * @param req 213 * Request number to pass to ioctl(). 214 * @param[out] ifr 215 * Interface request structure output buffer. 216 * 217 * @return 218 * 0 on success, a negative errno value otherwise and rte_errno is set. 219 */ 220 static int 221 mlx5_ifreq(const struct rte_eth_dev *dev, int req, struct ifreq *ifr) 222 { 223 char ifname[sizeof(ifr->ifr_name)]; 224 int ret; 225 226 ret = mlx5_get_ifname(dev, &ifname); 227 if (ret) 228 return -rte_errno; 229 return mlx5_ifreq_by_ifname(ifname, req, ifr); 230 } 231 232 /** 233 * Get device MTU. 234 * 235 * @param dev 236 * Pointer to Ethernet device. 237 * @param[out] mtu 238 * MTU value output buffer. 239 * 240 * @return 241 * 0 on success, a negative errno value otherwise and rte_errno is set. 242 */ 243 int 244 mlx5_get_mtu(struct rte_eth_dev *dev, uint16_t *mtu) 245 { 246 struct ifreq request; 247 int ret = mlx5_ifreq(dev, SIOCGIFMTU, &request); 248 249 if (ret) 250 return ret; 251 *mtu = request.ifr_mtu; 252 return 0; 253 } 254 255 /** 256 * Set device MTU. 257 * 258 * @param dev 259 * Pointer to Ethernet device. 260 * @param mtu 261 * MTU value to set. 262 * 263 * @return 264 * 0 on success, a negative errno value otherwise and rte_errno is set. 265 */ 266 int 267 mlx5_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) 268 { 269 struct ifreq request = { .ifr_mtu = mtu, }; 270 271 return mlx5_ifreq(dev, SIOCSIFMTU, &request); 272 } 273 274 /** 275 * Set device flags. 276 * 277 * @param dev 278 * Pointer to Ethernet device. 279 * @param keep 280 * Bitmask for flags that must remain untouched. 281 * @param flags 282 * Bitmask for flags to modify. 283 * 284 * @return 285 * 0 on success, a negative errno value otherwise and rte_errno is set. 286 */ 287 static int 288 mlx5_set_flags(struct rte_eth_dev *dev, unsigned int keep, unsigned int flags) 289 { 290 struct ifreq request; 291 int ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &request); 292 293 if (ret) 294 return ret; 295 request.ifr_flags &= keep; 296 request.ifr_flags |= flags & ~keep; 297 return mlx5_ifreq(dev, SIOCSIFFLAGS, &request); 298 } 299 300 /** 301 * Get device current raw clock counter 302 * 303 * @param dev 304 * Pointer to Ethernet device structure. 305 * @param[out] time 306 * Current raw clock counter of the device. 307 * 308 * @return 309 * 0 if the clock has correctly been read 310 * The value of errno in case of error 311 */ 312 int 313 mlx5_read_clock(struct rte_eth_dev *dev, uint64_t *clock) 314 { 315 struct mlx5_priv *priv = dev->data->dev_private; 316 struct ibv_context *ctx = priv->sh->ctx; 317 struct ibv_values_ex values; 318 int err = 0; 319 320 values.comp_mask = IBV_VALUES_MASK_RAW_CLOCK; 321 err = mlx5_glue->query_rt_values_ex(ctx, &values); 322 if (err != 0) { 323 DRV_LOG(WARNING, "Could not query the clock !"); 324 return err; 325 } 326 *clock = values.raw_clock.tv_nsec; 327 return 0; 328 } 329 330 /** 331 * Retrieve the master device for representor in the same switch domain. 332 * 333 * @param dev 334 * Pointer to representor Ethernet device structure. 335 * 336 * @return 337 * Master device structure on success, NULL otherwise. 338 */ 339 static struct rte_eth_dev * 340 mlx5_find_master_dev(struct rte_eth_dev *dev) 341 { 342 struct mlx5_priv *priv; 343 uint16_t port_id; 344 uint16_t domain_id; 345 346 priv = dev->data->dev_private; 347 domain_id = priv->domain_id; 348 MLX5_ASSERT(priv->representor); 349 MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) { 350 struct mlx5_priv *opriv = 351 rte_eth_devices[port_id].data->dev_private; 352 if (opriv && 353 opriv->master && 354 opriv->domain_id == domain_id && 355 opriv->sh == priv->sh) 356 return &rte_eth_devices[port_id]; 357 } 358 return NULL; 359 } 360 361 /** 362 * DPDK callback to retrieve physical link information. 363 * 364 * @param dev 365 * Pointer to Ethernet device structure. 366 * @param[out] link 367 * Storage for current link status. 368 * 369 * @return 370 * 0 on success, a negative errno value otherwise and rte_errno is set. 371 */ 372 static int 373 mlx5_link_update_unlocked_gset(struct rte_eth_dev *dev, 374 struct rte_eth_link *link) 375 { 376 struct mlx5_priv *priv = dev->data->dev_private; 377 struct ethtool_cmd edata = { 378 .cmd = ETHTOOL_GSET /* Deprecated since Linux v4.5. */ 379 }; 380 struct ifreq ifr; 381 struct rte_eth_link dev_link; 382 int link_speed = 0; 383 int ret; 384 385 ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr); 386 if (ret) { 387 DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s", 388 dev->data->port_id, strerror(rte_errno)); 389 return ret; 390 } 391 dev_link = (struct rte_eth_link) { 392 .link_status = ((ifr.ifr_flags & IFF_UP) && 393 (ifr.ifr_flags & IFF_RUNNING)), 394 }; 395 ifr = (struct ifreq) { 396 .ifr_data = (void *)&edata, 397 }; 398 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 399 if (ret) { 400 if (ret == -ENOTSUP && priv->representor) { 401 struct rte_eth_dev *master; 402 403 /* 404 * For representors we can try to inherit link 405 * settings from the master device. Actually 406 * link settings do not make a lot of sense 407 * for representors due to missing physical 408 * link. The old kernel drivers supported 409 * emulated settings query for representors, 410 * the new ones do not, so we have to add 411 * this code for compatibility issues. 412 */ 413 master = mlx5_find_master_dev(dev); 414 if (master) { 415 ifr = (struct ifreq) { 416 .ifr_data = (void *)&edata, 417 }; 418 ret = mlx5_ifreq(master, SIOCETHTOOL, &ifr); 419 } 420 } 421 if (ret) { 422 DRV_LOG(WARNING, 423 "port %u ioctl(SIOCETHTOOL," 424 " ETHTOOL_GSET) failed: %s", 425 dev->data->port_id, strerror(rte_errno)); 426 return ret; 427 } 428 } 429 link_speed = ethtool_cmd_speed(&edata); 430 if (link_speed == -1) 431 dev_link.link_speed = ETH_SPEED_NUM_UNKNOWN; 432 else 433 dev_link.link_speed = link_speed; 434 priv->link_speed_capa = 0; 435 if (edata.supported & (SUPPORTED_1000baseT_Full | 436 SUPPORTED_1000baseKX_Full)) 437 priv->link_speed_capa |= ETH_LINK_SPEED_1G; 438 if (edata.supported & SUPPORTED_10000baseKR_Full) 439 priv->link_speed_capa |= ETH_LINK_SPEED_10G; 440 if (edata.supported & (SUPPORTED_40000baseKR4_Full | 441 SUPPORTED_40000baseCR4_Full | 442 SUPPORTED_40000baseSR4_Full | 443 SUPPORTED_40000baseLR4_Full)) 444 priv->link_speed_capa |= ETH_LINK_SPEED_40G; 445 dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ? 446 ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX); 447 dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds & 448 ETH_LINK_SPEED_FIXED); 449 *link = dev_link; 450 return 0; 451 } 452 453 /** 454 * Retrieve physical link information (unlocked version using new ioctl). 455 * 456 * @param dev 457 * Pointer to Ethernet device structure. 458 * @param[out] link 459 * Storage for current link status. 460 * 461 * @return 462 * 0 on success, a negative errno value otherwise and rte_errno is set. 463 */ 464 static int 465 mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev, 466 struct rte_eth_link *link) 467 468 { 469 struct mlx5_priv *priv = dev->data->dev_private; 470 struct ethtool_link_settings gcmd = { .cmd = ETHTOOL_GLINKSETTINGS }; 471 struct ifreq ifr; 472 struct rte_eth_link dev_link; 473 struct rte_eth_dev *master = NULL; 474 uint64_t sc; 475 int ret; 476 477 ret = mlx5_ifreq(dev, SIOCGIFFLAGS, &ifr); 478 if (ret) { 479 DRV_LOG(WARNING, "port %u ioctl(SIOCGIFFLAGS) failed: %s", 480 dev->data->port_id, strerror(rte_errno)); 481 return ret; 482 } 483 dev_link = (struct rte_eth_link) { 484 .link_status = ((ifr.ifr_flags & IFF_UP) && 485 (ifr.ifr_flags & IFF_RUNNING)), 486 }; 487 ifr = (struct ifreq) { 488 .ifr_data = (void *)&gcmd, 489 }; 490 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 491 if (ret) { 492 if (ret == -ENOTSUP && priv->representor) { 493 /* 494 * For representors we can try to inherit link 495 * settings from the master device. Actually 496 * link settings do not make a lot of sense 497 * for representors due to missing physical 498 * link. The old kernel drivers supported 499 * emulated settings query for representors, 500 * the new ones do not, so we have to add 501 * this code for compatibility issues. 502 */ 503 master = mlx5_find_master_dev(dev); 504 if (master) { 505 ifr = (struct ifreq) { 506 .ifr_data = (void *)&gcmd, 507 }; 508 ret = mlx5_ifreq(master, SIOCETHTOOL, &ifr); 509 } 510 } 511 if (ret) { 512 DRV_LOG(DEBUG, 513 "port %u ioctl(SIOCETHTOOL," 514 " ETHTOOL_GLINKSETTINGS) failed: %s", 515 dev->data->port_id, strerror(rte_errno)); 516 return ret; 517 } 518 } 519 gcmd.link_mode_masks_nwords = -gcmd.link_mode_masks_nwords; 520 521 alignas(struct ethtool_link_settings) 522 uint8_t data[offsetof(struct ethtool_link_settings, link_mode_masks) + 523 sizeof(uint32_t) * gcmd.link_mode_masks_nwords * 3]; 524 struct ethtool_link_settings *ecmd = (void *)data; 525 526 *ecmd = gcmd; 527 ifr.ifr_data = (void *)ecmd; 528 ret = mlx5_ifreq(master ? master : dev, SIOCETHTOOL, &ifr); 529 if (ret) { 530 DRV_LOG(DEBUG, 531 "port %u ioctl(SIOCETHTOOL," 532 "ETHTOOL_GLINKSETTINGS) failed: %s", 533 dev->data->port_id, strerror(rte_errno)); 534 return ret; 535 } 536 dev_link.link_speed = (ecmd->speed == UINT32_MAX) ? 537 ETH_SPEED_NUM_UNKNOWN : ecmd->speed; 538 sc = ecmd->link_mode_masks[0] | 539 ((uint64_t)ecmd->link_mode_masks[1] << 32); 540 priv->link_speed_capa = 0; 541 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseT_Full_BIT) | 542 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT))) 543 priv->link_speed_capa |= ETH_LINK_SPEED_1G; 544 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT) | 545 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT) | 546 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_10000baseR_FEC_BIT))) 547 priv->link_speed_capa |= ETH_LINK_SPEED_10G; 548 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT) | 549 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT))) 550 priv->link_speed_capa |= ETH_LINK_SPEED_20G; 551 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT) | 552 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT) | 553 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT) | 554 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT))) 555 priv->link_speed_capa |= ETH_LINK_SPEED_40G; 556 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT) | 557 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT) | 558 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT) | 559 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT))) 560 priv->link_speed_capa |= ETH_LINK_SPEED_56G; 561 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseCR_Full_BIT) | 562 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseKR_Full_BIT) | 563 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_25000baseSR_Full_BIT))) 564 priv->link_speed_capa |= ETH_LINK_SPEED_25G; 565 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT) | 566 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT))) 567 priv->link_speed_capa |= ETH_LINK_SPEED_50G; 568 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT) | 569 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT) | 570 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT) | 571 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT))) 572 priv->link_speed_capa |= ETH_LINK_SPEED_100G; 573 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT) | 574 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT))) 575 priv->link_speed_capa |= ETH_LINK_SPEED_200G; 576 577 sc = ecmd->link_mode_masks[2] | 578 ((uint64_t)ecmd->link_mode_masks[3] << 32); 579 if (sc & (MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT) | 580 MLX5_BITSHIFT 581 (ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT) | 582 MLX5_BITSHIFT(ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT))) 583 priv->link_speed_capa |= ETH_LINK_SPEED_200G; 584 dev_link.link_duplex = ((ecmd->duplex == DUPLEX_HALF) ? 585 ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX); 586 dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds & 587 ETH_LINK_SPEED_FIXED); 588 *link = dev_link; 589 return 0; 590 } 591 592 /** 593 * DPDK callback to retrieve physical link information. 594 * 595 * @param dev 596 * Pointer to Ethernet device structure. 597 * @param wait_to_complete 598 * Wait for request completion. 599 * 600 * @return 601 * 0 if link status was not updated, positive if it was, a negative errno 602 * value otherwise and rte_errno is set. 603 */ 604 int 605 mlx5_link_update(struct rte_eth_dev *dev, int wait_to_complete) 606 { 607 int ret; 608 struct rte_eth_link dev_link; 609 time_t start_time = time(NULL); 610 int retry = MLX5_GET_LINK_STATUS_RETRY_COUNT; 611 612 do { 613 ret = mlx5_link_update_unlocked_gs(dev, &dev_link); 614 if (ret == -ENOTSUP) 615 ret = mlx5_link_update_unlocked_gset(dev, &dev_link); 616 if (ret == 0) 617 break; 618 /* Handle wait to complete situation. */ 619 if ((wait_to_complete || retry) && ret == -EAGAIN) { 620 if (abs((int)difftime(time(NULL), start_time)) < 621 MLX5_LINK_STATUS_TIMEOUT) { 622 usleep(0); 623 continue; 624 } else { 625 rte_errno = EBUSY; 626 return -rte_errno; 627 } 628 } else if (ret < 0) { 629 return ret; 630 } 631 } while (wait_to_complete || retry-- > 0); 632 ret = !!memcmp(&dev->data->dev_link, &dev_link, 633 sizeof(struct rte_eth_link)); 634 dev->data->dev_link = dev_link; 635 return ret; 636 } 637 638 /** 639 * DPDK callback to get flow control status. 640 * 641 * @param dev 642 * Pointer to Ethernet device structure. 643 * @param[out] fc_conf 644 * Flow control output buffer. 645 * 646 * @return 647 * 0 on success, a negative errno value otherwise and rte_errno is set. 648 */ 649 int 650 mlx5_dev_get_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) 651 { 652 struct ifreq ifr; 653 struct ethtool_pauseparam ethpause = { 654 .cmd = ETHTOOL_GPAUSEPARAM 655 }; 656 int ret; 657 658 ifr.ifr_data = (void *)ðpause; 659 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 660 if (ret) { 661 DRV_LOG(WARNING, 662 "port %u ioctl(SIOCETHTOOL, ETHTOOL_GPAUSEPARAM) failed:" 663 " %s", 664 dev->data->port_id, strerror(rte_errno)); 665 return ret; 666 } 667 fc_conf->autoneg = ethpause.autoneg; 668 if (ethpause.rx_pause && ethpause.tx_pause) 669 fc_conf->mode = RTE_FC_FULL; 670 else if (ethpause.rx_pause) 671 fc_conf->mode = RTE_FC_RX_PAUSE; 672 else if (ethpause.tx_pause) 673 fc_conf->mode = RTE_FC_TX_PAUSE; 674 else 675 fc_conf->mode = RTE_FC_NONE; 676 return 0; 677 } 678 679 /** 680 * DPDK callback to modify flow control parameters. 681 * 682 * @param dev 683 * Pointer to Ethernet device structure. 684 * @param[in] fc_conf 685 * Flow control parameters. 686 * 687 * @return 688 * 0 on success, a negative errno value otherwise and rte_errno is set. 689 */ 690 int 691 mlx5_dev_set_flow_ctrl(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) 692 { 693 struct ifreq ifr; 694 struct ethtool_pauseparam ethpause = { 695 .cmd = ETHTOOL_SPAUSEPARAM 696 }; 697 int ret; 698 699 ifr.ifr_data = (void *)ðpause; 700 ethpause.autoneg = fc_conf->autoneg; 701 if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || 702 (fc_conf->mode & RTE_FC_RX_PAUSE)) 703 ethpause.rx_pause = 1; 704 else 705 ethpause.rx_pause = 0; 706 707 if (((fc_conf->mode & RTE_FC_FULL) == RTE_FC_FULL) || 708 (fc_conf->mode & RTE_FC_TX_PAUSE)) 709 ethpause.tx_pause = 1; 710 else 711 ethpause.tx_pause = 0; 712 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 713 if (ret) { 714 DRV_LOG(WARNING, 715 "port %u ioctl(SIOCETHTOOL, ETHTOOL_SPAUSEPARAM)" 716 " failed: %s", 717 dev->data->port_id, strerror(rte_errno)); 718 return ret; 719 } 720 return 0; 721 } 722 723 /** 724 * Handle asynchronous removal event for entire multiport device. 725 * 726 * @param sh 727 * Infiniband device shared context. 728 */ 729 static void 730 mlx5_dev_interrupt_device_fatal(struct mlx5_dev_ctx_shared *sh) 731 { 732 uint32_t i; 733 734 for (i = 0; i < sh->max_port; ++i) { 735 struct rte_eth_dev *dev; 736 737 if (sh->port[i].ih_port_id >= RTE_MAX_ETHPORTS) { 738 /* 739 * Or not existing port either no 740 * handler installed for this port. 741 */ 742 continue; 743 } 744 dev = &rte_eth_devices[sh->port[i].ih_port_id]; 745 MLX5_ASSERT(dev); 746 if (dev->data->dev_conf.intr_conf.rmv) 747 rte_eth_dev_callback_process 748 (dev, RTE_ETH_EVENT_INTR_RMV, NULL); 749 } 750 } 751 752 /** 753 * Handle shared asynchronous events the NIC (removal event 754 * and link status change). Supports multiport IB device. 755 * 756 * @param cb_arg 757 * Callback argument. 758 */ 759 void 760 mlx5_dev_interrupt_handler(void *cb_arg) 761 { 762 struct mlx5_dev_ctx_shared *sh = cb_arg; 763 struct ibv_async_event event; 764 765 /* Read all message from the IB device and acknowledge them. */ 766 for (;;) { 767 struct rte_eth_dev *dev; 768 uint32_t tmp; 769 770 if (mlx5_glue->get_async_event(sh->ctx, &event)) 771 break; 772 /* Retrieve and check IB port index. */ 773 tmp = (uint32_t)event.element.port_num; 774 if (!tmp && event.event_type == IBV_EVENT_DEVICE_FATAL) { 775 /* 776 * The DEVICE_FATAL event is called once for 777 * entire device without port specifying. 778 * We should notify all existing ports. 779 */ 780 mlx5_glue->ack_async_event(&event); 781 mlx5_dev_interrupt_device_fatal(sh); 782 continue; 783 } 784 MLX5_ASSERT(tmp && (tmp <= sh->max_port)); 785 if (!tmp) { 786 /* Unsupported device level event. */ 787 mlx5_glue->ack_async_event(&event); 788 DRV_LOG(DEBUG, 789 "unsupported common event (type %d)", 790 event.event_type); 791 continue; 792 } 793 if (tmp > sh->max_port) { 794 /* Invalid IB port index. */ 795 mlx5_glue->ack_async_event(&event); 796 DRV_LOG(DEBUG, 797 "cannot handle an event (type %d)" 798 "due to invalid IB port index (%u)", 799 event.event_type, tmp); 800 continue; 801 } 802 if (sh->port[tmp - 1].ih_port_id >= RTE_MAX_ETHPORTS) { 803 /* No handler installed. */ 804 mlx5_glue->ack_async_event(&event); 805 DRV_LOG(DEBUG, 806 "cannot handle an event (type %d)" 807 "due to no handler installed for port %u", 808 event.event_type, tmp); 809 continue; 810 } 811 /* Retrieve ethernet device descriptor. */ 812 tmp = sh->port[tmp - 1].ih_port_id; 813 dev = &rte_eth_devices[tmp]; 814 MLX5_ASSERT(dev); 815 if ((event.event_type == IBV_EVENT_PORT_ACTIVE || 816 event.event_type == IBV_EVENT_PORT_ERR) && 817 dev->data->dev_conf.intr_conf.lsc) { 818 mlx5_glue->ack_async_event(&event); 819 if (mlx5_link_update(dev, 0) == -EAGAIN) { 820 usleep(0); 821 continue; 822 } 823 rte_eth_dev_callback_process 824 (dev, RTE_ETH_EVENT_INTR_LSC, NULL); 825 continue; 826 } 827 DRV_LOG(DEBUG, 828 "port %u cannot handle an unknown event (type %d)", 829 dev->data->port_id, event.event_type); 830 mlx5_glue->ack_async_event(&event); 831 } 832 } 833 834 /* 835 * Unregister callback handler safely. The handler may be active 836 * while we are trying to unregister it, in this case code -EAGAIN 837 * is returned by rte_intr_callback_unregister(). This routine checks 838 * the return code and tries to unregister handler again. 839 * 840 * @param handle 841 * interrupt handle 842 * @param cb_fn 843 * pointer to callback routine 844 * @cb_arg 845 * opaque callback parameter 846 */ 847 void 848 mlx5_intr_callback_unregister(const struct rte_intr_handle *handle, 849 rte_intr_callback_fn cb_fn, void *cb_arg) 850 { 851 /* 852 * Try to reduce timeout management overhead by not calling 853 * the timer related routines on the first iteration. If the 854 * unregistering succeeds on first call there will be no 855 * timer calls at all. 856 */ 857 uint64_t twait = 0; 858 uint64_t start = 0; 859 860 do { 861 int ret; 862 863 ret = rte_intr_callback_unregister(handle, cb_fn, cb_arg); 864 if (ret >= 0) 865 return; 866 if (ret != -EAGAIN) { 867 DRV_LOG(INFO, "failed to unregister interrupt" 868 " handler (error: %d)", ret); 869 MLX5_ASSERT(false); 870 return; 871 } 872 if (twait) { 873 struct timespec onems; 874 875 /* Wait one millisecond and try again. */ 876 onems.tv_sec = 0; 877 onems.tv_nsec = NS_PER_S / MS_PER_S; 878 nanosleep(&onems, 0); 879 /* Check whether one second elapsed. */ 880 if ((rte_get_timer_cycles() - start) <= twait) 881 continue; 882 } else { 883 /* 884 * We get the amount of timer ticks for one second. 885 * If this amount elapsed it means we spent one 886 * second in waiting. This branch is executed once 887 * on first iteration. 888 */ 889 twait = rte_get_timer_hz(); 890 MLX5_ASSERT(twait); 891 } 892 /* 893 * Timeout elapsed, show message (once a second) and retry. 894 * We have no other acceptable option here, if we ignore 895 * the unregistering return code the handler will not 896 * be unregistered, fd will be closed and we may get the 897 * crush. Hanging and messaging in the loop seems not to be 898 * the worst choice. 899 */ 900 DRV_LOG(INFO, "Retrying to unregister interrupt handler"); 901 start = rte_get_timer_cycles(); 902 } while (true); 903 } 904 905 /** 906 * Handle DEVX interrupts from the NIC. 907 * This function is probably called from the DPDK host thread. 908 * 909 * @param cb_arg 910 * Callback argument. 911 */ 912 void 913 mlx5_dev_interrupt_handler_devx(void *cb_arg) 914 { 915 #ifndef HAVE_IBV_DEVX_ASYNC 916 (void)cb_arg; 917 return; 918 #else 919 struct mlx5_dev_ctx_shared *sh = cb_arg; 920 union { 921 struct mlx5dv_devx_async_cmd_hdr cmd_resp; 922 uint8_t buf[MLX5_ST_SZ_BYTES(query_flow_counter_out) + 923 MLX5_ST_SZ_BYTES(traffic_counter) + 924 sizeof(struct mlx5dv_devx_async_cmd_hdr)]; 925 } out; 926 uint8_t *buf = out.buf + sizeof(out.cmd_resp); 927 928 while (!mlx5_glue->devx_get_async_cmd_comp(sh->devx_comp, 929 &out.cmd_resp, 930 sizeof(out.buf))) 931 mlx5_flow_async_pool_query_handle 932 (sh, (uint64_t)out.cmd_resp.wr_id, 933 mlx5_devx_get_out_command_status(buf)); 934 #endif /* HAVE_IBV_DEVX_ASYNC */ 935 } 936 937 /** 938 * DPDK callback to bring the link DOWN. 939 * 940 * @param dev 941 * Pointer to Ethernet device structure. 942 * 943 * @return 944 * 0 on success, a negative errno value otherwise and rte_errno is set. 945 */ 946 int 947 mlx5_set_link_down(struct rte_eth_dev *dev) 948 { 949 return mlx5_set_flags(dev, ~IFF_UP, ~IFF_UP); 950 } 951 952 /** 953 * DPDK callback to bring the link UP. 954 * 955 * @param dev 956 * Pointer to Ethernet device structure. 957 * 958 * @return 959 * 0 on success, a negative errno value otherwise and rte_errno is set. 960 */ 961 int 962 mlx5_set_link_up(struct rte_eth_dev *dev) 963 { 964 return mlx5_set_flags(dev, ~IFF_UP, IFF_UP); 965 } 966 967 /** 968 * Check if mlx5 device was removed. 969 * 970 * @param dev 971 * Pointer to Ethernet device structure. 972 * 973 * @return 974 * 1 when device is removed, otherwise 0. 975 */ 976 int 977 mlx5_is_removed(struct rte_eth_dev *dev) 978 { 979 struct ibv_device_attr device_attr; 980 struct mlx5_priv *priv = dev->data->dev_private; 981 982 if (mlx5_glue->query_device(priv->sh->ctx, &device_attr) == EIO) 983 return 1; 984 return 0; 985 } 986 987 /** 988 * Analyze gathered port parameters via sysfs to recognize master 989 * and representor devices for E-Switch configuration. 990 * 991 * @param[in] device_dir 992 * flag of presence of "device" directory under port device key. 993 * @param[inout] switch_info 994 * Port information, including port name as a number and port name 995 * type if recognized 996 * 997 * @return 998 * master and representor flags are set in switch_info according to 999 * recognized parameters (if any). 1000 */ 1001 static void 1002 mlx5_sysfs_check_switch_info(bool device_dir, 1003 struct mlx5_switch_info *switch_info) 1004 { 1005 switch (switch_info->name_type) { 1006 case MLX5_PHYS_PORT_NAME_TYPE_UNKNOWN: 1007 /* 1008 * Name is not recognized, assume the master, 1009 * check the device directory presence. 1010 */ 1011 switch_info->master = device_dir; 1012 break; 1013 case MLX5_PHYS_PORT_NAME_TYPE_NOTSET: 1014 /* 1015 * Name is not set, this assumes the legacy naming 1016 * schema for master, just check if there is 1017 * a device directory. 1018 */ 1019 switch_info->master = device_dir; 1020 break; 1021 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK: 1022 /* New uplink naming schema recognized. */ 1023 switch_info->master = 1; 1024 break; 1025 case MLX5_PHYS_PORT_NAME_TYPE_LEGACY: 1026 /* Legacy representors naming schema. */ 1027 switch_info->representor = !device_dir; 1028 break; 1029 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF: 1030 /* Fallthrough */ 1031 case MLX5_PHYS_PORT_NAME_TYPE_PFVF: 1032 /* Fallthrough */ 1033 case MLX5_PHYS_PORT_NAME_TYPE_PFSF: 1034 /* New representors naming schema. */ 1035 switch_info->representor = 1; 1036 break; 1037 default: 1038 switch_info->master = device_dir; 1039 break; 1040 } 1041 } 1042 1043 /** 1044 * Get switch information associated with network interface. 1045 * 1046 * @param ifindex 1047 * Network interface index. 1048 * @param[out] info 1049 * Switch information object, populated in case of success. 1050 * 1051 * @return 1052 * 0 on success, a negative errno value otherwise and rte_errno is set. 1053 */ 1054 int 1055 mlx5_sysfs_switch_info(unsigned int ifindex, struct mlx5_switch_info *info) 1056 { 1057 char ifname[IF_NAMESIZE]; 1058 char port_name[IF_NAMESIZE]; 1059 FILE *file; 1060 struct mlx5_switch_info data = { 1061 .master = 0, 1062 .representor = 0, 1063 .name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET, 1064 .port_name = 0, 1065 .switch_id = 0, 1066 }; 1067 DIR *dir; 1068 bool port_switch_id_set = false; 1069 bool device_dir = false; 1070 char c; 1071 int ret; 1072 1073 if (!if_indextoname(ifindex, ifname)) { 1074 rte_errno = errno; 1075 return -rte_errno; 1076 } 1077 1078 MKSTR(phys_port_name, "/sys/class/net/%s/phys_port_name", 1079 ifname); 1080 MKSTR(phys_switch_id, "/sys/class/net/%s/phys_switch_id", 1081 ifname); 1082 MKSTR(pci_device, "/sys/class/net/%s/device", 1083 ifname); 1084 1085 file = fopen(phys_port_name, "rb"); 1086 if (file != NULL) { 1087 ret = fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", port_name); 1088 fclose(file); 1089 if (ret == 1) 1090 mlx5_translate_port_name(port_name, &data); 1091 } 1092 file = fopen(phys_switch_id, "rb"); 1093 if (file == NULL) { 1094 rte_errno = errno; 1095 return -rte_errno; 1096 } 1097 port_switch_id_set = 1098 fscanf(file, "%" SCNx64 "%c", &data.switch_id, &c) == 2 && 1099 c == '\n'; 1100 fclose(file); 1101 dir = opendir(pci_device); 1102 if (dir != NULL) { 1103 closedir(dir); 1104 device_dir = true; 1105 } 1106 if (port_switch_id_set) { 1107 /* We have some E-Switch configuration. */ 1108 mlx5_sysfs_check_switch_info(device_dir, &data); 1109 } 1110 *info = data; 1111 MLX5_ASSERT(!(data.master && data.representor)); 1112 if (data.master && data.representor) { 1113 DRV_LOG(ERR, "ifindex %u device is recognized as master" 1114 " and as representor", ifindex); 1115 rte_errno = ENODEV; 1116 return -rte_errno; 1117 } 1118 return 0; 1119 } 1120 1121 /** 1122 * Get bond information associated with network interface. 1123 * 1124 * @param pf_ifindex 1125 * Network interface index of bond slave interface 1126 * @param[out] ifindex 1127 * Pointer to bond ifindex. 1128 * @param[out] ifname 1129 * Pointer to bond ifname. 1130 * 1131 * @return 1132 * 0 on success, a negative errno value otherwise and rte_errno is set. 1133 */ 1134 int 1135 mlx5_sysfs_bond_info(unsigned int pf_ifindex, unsigned int *ifindex, 1136 char *ifname) 1137 { 1138 char name[IF_NAMESIZE]; 1139 FILE *file; 1140 unsigned int index; 1141 int ret; 1142 1143 if (!if_indextoname(pf_ifindex, name) || !strlen(name)) { 1144 rte_errno = errno; 1145 return -rte_errno; 1146 } 1147 MKSTR(bond_if, "/sys/class/net/%s/master/ifindex", name); 1148 /* read bond ifindex */ 1149 file = fopen(bond_if, "rb"); 1150 if (file == NULL) { 1151 rte_errno = errno; 1152 return -rte_errno; 1153 } 1154 ret = fscanf(file, "%u", &index); 1155 fclose(file); 1156 if (ret <= 0) { 1157 rte_errno = errno; 1158 return -rte_errno; 1159 } 1160 if (ifindex) 1161 *ifindex = index; 1162 1163 /* read bond device name from symbol link */ 1164 if (ifname) { 1165 if (!if_indextoname(index, ifname)) { 1166 rte_errno = errno; 1167 return -rte_errno; 1168 } 1169 } 1170 return 0; 1171 } 1172 1173 /** 1174 * DPDK callback to retrieve plug-in module EEPROM information (type and size). 1175 * 1176 * @param dev 1177 * Pointer to Ethernet device structure. 1178 * @param[out] modinfo 1179 * Storage for plug-in module EEPROM information. 1180 * 1181 * @return 1182 * 0 on success, a negative errno value otherwise and rte_errno is set. 1183 */ 1184 int 1185 mlx5_get_module_info(struct rte_eth_dev *dev, 1186 struct rte_eth_dev_module_info *modinfo) 1187 { 1188 struct ethtool_modinfo info = { 1189 .cmd = ETHTOOL_GMODULEINFO, 1190 }; 1191 struct ifreq ifr = (struct ifreq) { 1192 .ifr_data = (void *)&info, 1193 }; 1194 int ret = 0; 1195 1196 if (!dev) { 1197 DRV_LOG(WARNING, "missing argument, cannot get module info"); 1198 rte_errno = EINVAL; 1199 return -rte_errno; 1200 } 1201 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 1202 if (ret) { 1203 DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s", 1204 dev->data->port_id, strerror(rte_errno)); 1205 return ret; 1206 } 1207 modinfo->type = info.type; 1208 modinfo->eeprom_len = info.eeprom_len; 1209 return ret; 1210 } 1211 1212 /** 1213 * DPDK callback to retrieve plug-in module EEPROM data. 1214 * 1215 * @param dev 1216 * Pointer to Ethernet device structure. 1217 * @param[out] info 1218 * Storage for plug-in module EEPROM data. 1219 * 1220 * @return 1221 * 0 on success, a negative errno value otherwise and rte_errno is set. 1222 */ 1223 int mlx5_get_module_eeprom(struct rte_eth_dev *dev, 1224 struct rte_dev_eeprom_info *info) 1225 { 1226 struct ethtool_eeprom *eeprom; 1227 struct ifreq ifr; 1228 int ret = 0; 1229 1230 if (!dev) { 1231 DRV_LOG(WARNING, "missing argument, cannot get module eeprom"); 1232 rte_errno = EINVAL; 1233 return -rte_errno; 1234 } 1235 eeprom = mlx5_malloc(MLX5_MEM_ZERO, 1236 (sizeof(struct ethtool_eeprom) + info->length), 0, 1237 SOCKET_ID_ANY); 1238 if (!eeprom) { 1239 DRV_LOG(WARNING, "port %u cannot allocate memory for " 1240 "eeprom data", dev->data->port_id); 1241 rte_errno = ENOMEM; 1242 return -rte_errno; 1243 } 1244 eeprom->cmd = ETHTOOL_GMODULEEEPROM; 1245 eeprom->offset = info->offset; 1246 eeprom->len = info->length; 1247 ifr = (struct ifreq) { 1248 .ifr_data = (void *)eeprom, 1249 }; 1250 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 1251 if (ret) 1252 DRV_LOG(WARNING, "port %u ioctl(SIOCETHTOOL) failed: %s", 1253 dev->data->port_id, strerror(rte_errno)); 1254 else 1255 rte_memcpy(info->data, eeprom->data, info->length); 1256 mlx5_free(eeprom); 1257 return ret; 1258 } 1259 1260 /** 1261 * Read device counters table. 1262 * 1263 * @param dev 1264 * Pointer to Ethernet device. 1265 * @param[in] pf 1266 * PF index in case of bonding device, -1 otherwise 1267 * @param[out] stats 1268 * Counters table output buffer. 1269 * 1270 * @return 1271 * 0 on success and stats is filled, negative errno value otherwise and 1272 * rte_errno is set. 1273 */ 1274 static int 1275 _mlx5_os_read_dev_counters(struct rte_eth_dev *dev, int pf, uint64_t *stats) 1276 { 1277 struct mlx5_priv *priv = dev->data->dev_private; 1278 struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; 1279 unsigned int i; 1280 struct ifreq ifr; 1281 unsigned int stats_sz = xstats_ctrl->stats_n * sizeof(uint64_t); 1282 unsigned char et_stat_buf[sizeof(struct ethtool_stats) + stats_sz]; 1283 struct ethtool_stats *et_stats = (struct ethtool_stats *)et_stat_buf; 1284 int ret; 1285 1286 et_stats->cmd = ETHTOOL_GSTATS; 1287 et_stats->n_stats = xstats_ctrl->stats_n; 1288 ifr.ifr_data = (caddr_t)et_stats; 1289 if (pf >= 0) 1290 ret = mlx5_ifreq_by_ifname(priv->sh->bond.ports[pf].ifname, 1291 SIOCETHTOOL, &ifr); 1292 else 1293 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 1294 if (ret) { 1295 DRV_LOG(WARNING, 1296 "port %u unable to read statistic values from device", 1297 dev->data->port_id); 1298 return ret; 1299 } 1300 for (i = 0; i != xstats_ctrl->mlx5_stats_n; ++i) { 1301 if (xstats_ctrl->info[i].dev) 1302 continue; 1303 stats[i] += (uint64_t) 1304 et_stats->data[xstats_ctrl->dev_table_idx[i]]; 1305 } 1306 return 0; 1307 } 1308 1309 /** 1310 * Read device counters. 1311 * 1312 * @param dev 1313 * Pointer to Ethernet device. 1314 * @param[out] stats 1315 * Counters table output buffer. 1316 * 1317 * @return 1318 * 0 on success and stats is filled, negative errno value otherwise and 1319 * rte_errno is set. 1320 */ 1321 int 1322 mlx5_os_read_dev_counters(struct rte_eth_dev *dev, uint64_t *stats) 1323 { 1324 struct mlx5_priv *priv = dev->data->dev_private; 1325 struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; 1326 int ret = 0, i; 1327 1328 memset(stats, 0, sizeof(*stats) * xstats_ctrl->mlx5_stats_n); 1329 /* Read ifreq counters. */ 1330 if (priv->master && priv->pf_bond >= 0) { 1331 /* Sum xstats from bonding device member ports. */ 1332 for (i = 0; i < priv->sh->bond.n_port; i++) { 1333 ret = _mlx5_os_read_dev_counters(dev, i, stats); 1334 if (ret) 1335 return ret; 1336 } 1337 } else { 1338 ret = _mlx5_os_read_dev_counters(dev, -1, stats); 1339 } 1340 /* Read IB counters. */ 1341 for (i = 0; i != xstats_ctrl->mlx5_stats_n; ++i) { 1342 if (!xstats_ctrl->info[i].dev) 1343 continue; 1344 ret = mlx5_os_read_dev_stat(priv, xstats_ctrl->info[i].ctr_name, 1345 &stats[i]); 1346 /* return last xstats counter if fail to read. */ 1347 if (ret != 0) 1348 xstats_ctrl->xstats[i] = stats[i]; 1349 else 1350 stats[i] = xstats_ctrl->xstats[i]; 1351 } 1352 return ret; 1353 } 1354 1355 /** 1356 * Query the number of statistics provided by ETHTOOL. 1357 * 1358 * @param dev 1359 * Pointer to Ethernet device. 1360 * 1361 * @return 1362 * Number of statistics on success, negative errno value otherwise and 1363 * rte_errno is set. 1364 */ 1365 int 1366 mlx5_os_get_stats_n(struct rte_eth_dev *dev) 1367 { 1368 struct mlx5_priv *priv = dev->data->dev_private; 1369 struct ethtool_drvinfo drvinfo; 1370 struct ifreq ifr; 1371 int ret; 1372 1373 drvinfo.cmd = ETHTOOL_GDRVINFO; 1374 ifr.ifr_data = (caddr_t)&drvinfo; 1375 if (priv->master && priv->pf_bond >= 0) 1376 /* Bonding PF. */ 1377 ret = mlx5_ifreq_by_ifname(priv->sh->bond.ports[0].ifname, 1378 SIOCETHTOOL, &ifr); 1379 else 1380 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 1381 if (ret) { 1382 DRV_LOG(WARNING, "port %u unable to query number of statistics", 1383 dev->data->port_id); 1384 return ret; 1385 } 1386 return drvinfo.n_stats; 1387 } 1388 1389 static const struct mlx5_counter_ctrl mlx5_counters_init[] = { 1390 { 1391 .dpdk_name = "rx_unicast_bytes", 1392 .ctr_name = "rx_vport_unicast_bytes", 1393 }, 1394 { 1395 .dpdk_name = "rx_multicast_bytes", 1396 .ctr_name = "rx_vport_multicast_bytes", 1397 }, 1398 { 1399 .dpdk_name = "rx_broadcast_bytes", 1400 .ctr_name = "rx_vport_broadcast_bytes", 1401 }, 1402 { 1403 .dpdk_name = "rx_unicast_packets", 1404 .ctr_name = "rx_vport_unicast_packets", 1405 }, 1406 { 1407 .dpdk_name = "rx_multicast_packets", 1408 .ctr_name = "rx_vport_multicast_packets", 1409 }, 1410 { 1411 .dpdk_name = "rx_broadcast_packets", 1412 .ctr_name = "rx_vport_broadcast_packets", 1413 }, 1414 { 1415 .dpdk_name = "tx_unicast_bytes", 1416 .ctr_name = "tx_vport_unicast_bytes", 1417 }, 1418 { 1419 .dpdk_name = "tx_multicast_bytes", 1420 .ctr_name = "tx_vport_multicast_bytes", 1421 }, 1422 { 1423 .dpdk_name = "tx_broadcast_bytes", 1424 .ctr_name = "tx_vport_broadcast_bytes", 1425 }, 1426 { 1427 .dpdk_name = "tx_unicast_packets", 1428 .ctr_name = "tx_vport_unicast_packets", 1429 }, 1430 { 1431 .dpdk_name = "tx_multicast_packets", 1432 .ctr_name = "tx_vport_multicast_packets", 1433 }, 1434 { 1435 .dpdk_name = "tx_broadcast_packets", 1436 .ctr_name = "tx_vport_broadcast_packets", 1437 }, 1438 { 1439 .dpdk_name = "rx_wqe_errors", 1440 .ctr_name = "rx_wqe_err", 1441 }, 1442 { 1443 .dpdk_name = "rx_phy_crc_errors", 1444 .ctr_name = "rx_crc_errors_phy", 1445 }, 1446 { 1447 .dpdk_name = "rx_phy_in_range_len_errors", 1448 .ctr_name = "rx_in_range_len_errors_phy", 1449 }, 1450 { 1451 .dpdk_name = "rx_phy_symbol_errors", 1452 .ctr_name = "rx_symbol_err_phy", 1453 }, 1454 { 1455 .dpdk_name = "tx_phy_errors", 1456 .ctr_name = "tx_errors_phy", 1457 }, 1458 { 1459 .dpdk_name = "rx_out_of_buffer", 1460 .ctr_name = "out_of_buffer", 1461 .dev = 1, 1462 }, 1463 { 1464 .dpdk_name = "tx_phy_packets", 1465 .ctr_name = "tx_packets_phy", 1466 }, 1467 { 1468 .dpdk_name = "rx_phy_packets", 1469 .ctr_name = "rx_packets_phy", 1470 }, 1471 { 1472 .dpdk_name = "tx_phy_discard_packets", 1473 .ctr_name = "tx_discards_phy", 1474 }, 1475 { 1476 .dpdk_name = "rx_phy_discard_packets", 1477 .ctr_name = "rx_discards_phy", 1478 }, 1479 { 1480 .dpdk_name = "tx_phy_bytes", 1481 .ctr_name = "tx_bytes_phy", 1482 }, 1483 { 1484 .dpdk_name = "rx_phy_bytes", 1485 .ctr_name = "rx_bytes_phy", 1486 }, 1487 /* Representor only */ 1488 { 1489 .dpdk_name = "rx_vport_packets", 1490 .ctr_name = "vport_rx_packets", 1491 }, 1492 { 1493 .dpdk_name = "rx_vport_bytes", 1494 .ctr_name = "vport_rx_bytes", 1495 }, 1496 { 1497 .dpdk_name = "tx_vport_packets", 1498 .ctr_name = "vport_tx_packets", 1499 }, 1500 { 1501 .dpdk_name = "tx_vport_bytes", 1502 .ctr_name = "vport_tx_bytes", 1503 }, 1504 }; 1505 1506 static const unsigned int xstats_n = RTE_DIM(mlx5_counters_init); 1507 1508 /** 1509 * Init the structures to read device counters. 1510 * 1511 * @param dev 1512 * Pointer to Ethernet device. 1513 */ 1514 void 1515 mlx5_os_stats_init(struct rte_eth_dev *dev) 1516 { 1517 struct mlx5_priv *priv = dev->data->dev_private; 1518 struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl; 1519 struct mlx5_stats_ctrl *stats_ctrl = &priv->stats_ctrl; 1520 unsigned int i; 1521 unsigned int j; 1522 struct ifreq ifr; 1523 struct ethtool_gstrings *strings = NULL; 1524 unsigned int dev_stats_n; 1525 unsigned int str_sz; 1526 int ret; 1527 1528 /* So that it won't aggregate for each init. */ 1529 xstats_ctrl->mlx5_stats_n = 0; 1530 ret = mlx5_os_get_stats_n(dev); 1531 if (ret < 0) { 1532 DRV_LOG(WARNING, "port %u no extended statistics available", 1533 dev->data->port_id); 1534 return; 1535 } 1536 dev_stats_n = ret; 1537 /* Allocate memory to grab stat names and values. */ 1538 str_sz = dev_stats_n * ETH_GSTRING_LEN; 1539 strings = (struct ethtool_gstrings *) 1540 mlx5_malloc(0, str_sz + sizeof(struct ethtool_gstrings), 0, 1541 SOCKET_ID_ANY); 1542 if (!strings) { 1543 DRV_LOG(WARNING, "port %u unable to allocate memory for xstats", 1544 dev->data->port_id); 1545 return; 1546 } 1547 strings->cmd = ETHTOOL_GSTRINGS; 1548 strings->string_set = ETH_SS_STATS; 1549 strings->len = dev_stats_n; 1550 ifr.ifr_data = (caddr_t)strings; 1551 if (priv->master && priv->pf_bond >= 0) 1552 /* Bonding master. */ 1553 ret = mlx5_ifreq_by_ifname(priv->sh->bond.ports[0].ifname, 1554 SIOCETHTOOL, &ifr); 1555 else 1556 ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr); 1557 if (ret) { 1558 DRV_LOG(WARNING, "port %u unable to get statistic names", 1559 dev->data->port_id); 1560 goto free; 1561 } 1562 for (i = 0; i != dev_stats_n; ++i) { 1563 const char *curr_string = (const char *) 1564 &strings->data[i * ETH_GSTRING_LEN]; 1565 1566 for (j = 0; j != xstats_n; ++j) { 1567 if (!strcmp(mlx5_counters_init[j].ctr_name, 1568 curr_string)) { 1569 unsigned int idx = xstats_ctrl->mlx5_stats_n++; 1570 1571 xstats_ctrl->dev_table_idx[idx] = i; 1572 xstats_ctrl->info[idx] = mlx5_counters_init[j]; 1573 break; 1574 } 1575 } 1576 } 1577 /* Add dev counters. */ 1578 for (i = 0; i != xstats_n; ++i) { 1579 if (mlx5_counters_init[i].dev) { 1580 unsigned int idx = xstats_ctrl->mlx5_stats_n++; 1581 1582 xstats_ctrl->info[idx] = mlx5_counters_init[i]; 1583 xstats_ctrl->hw_stats[idx] = 0; 1584 } 1585 } 1586 MLX5_ASSERT(xstats_ctrl->mlx5_stats_n <= MLX5_MAX_XSTATS); 1587 xstats_ctrl->stats_n = dev_stats_n; 1588 /* Copy to base at first time. */ 1589 ret = mlx5_os_read_dev_counters(dev, xstats_ctrl->base); 1590 if (ret) 1591 DRV_LOG(ERR, "port %u cannot read device counters: %s", 1592 dev->data->port_id, strerror(rte_errno)); 1593 mlx5_os_read_dev_stat(priv, "out_of_buffer", &stats_ctrl->imissed_base); 1594 stats_ctrl->imissed = 0; 1595 free: 1596 mlx5_free(strings); 1597 } 1598 1599 /** 1600 * Get MAC address by querying netdevice. 1601 * 1602 * @param[in] dev 1603 * Pointer to Ethernet device. 1604 * @param[out] mac 1605 * MAC address output buffer. 1606 * 1607 * @return 1608 * 0 on success, a negative errno value otherwise and rte_errno is set. 1609 */ 1610 int 1611 mlx5_get_mac(struct rte_eth_dev *dev, uint8_t (*mac)[RTE_ETHER_ADDR_LEN]) 1612 { 1613 struct ifreq request; 1614 int ret; 1615 1616 ret = mlx5_ifreq(dev, SIOCGIFHWADDR, &request); 1617 if (ret) 1618 return ret; 1619 memcpy(mac, request.ifr_hwaddr.sa_data, RTE_ETHER_ADDR_LEN); 1620 return 0; 1621 } 1622 1623