drivers/net/failsafe/failsafe_ether.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2017 6WIND S.A.
   3  * Copyright 2017 Mellanox Technologies, Ltd
   4  */
   5
   6 #include <unistd.h>
   7
   8 #include <rte_flow.h>
   9 #include <rte_flow_driver.h>
  10 #include <rte_cycles.h>
  11
  12 #include "failsafe_private.h"
  13
  14 /** Print a message out of a flow error. */
  15 static int
  16 fs_flow_complain(struct rte_flow_error *error)
  17 {
  18         static const char *const errstrlist[] = {
  19                 [RTE_FLOW_ERROR_TYPE_NONE] = "no error",
  20                 [RTE_FLOW_ERROR_TYPE_UNSPECIFIED] = "cause unspecified",
  21                 [RTE_FLOW_ERROR_TYPE_HANDLE] = "flow rule (handle)",
  22                 [RTE_FLOW_ERROR_TYPE_ATTR_GROUP] = "group field",
  23                 [RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY] = "priority field",
  24                 [RTE_FLOW_ERROR_TYPE_ATTR_INGRESS] = "ingress field",
  25                 [RTE_FLOW_ERROR_TYPE_ATTR_EGRESS] = "egress field",
  26                 [RTE_FLOW_ERROR_TYPE_ATTR] = "attributes structure",
  27                 [RTE_FLOW_ERROR_TYPE_ITEM_NUM] = "pattern length",
  28                 [RTE_FLOW_ERROR_TYPE_ITEM] = "specific pattern item",
  29                 [RTE_FLOW_ERROR_TYPE_ACTION_NUM] = "number of actions",
  30                 [RTE_FLOW_ERROR_TYPE_ACTION] = "specific action",
  31         };
  32         const char *errstr;
  33         char buf[32];
  34         int err = rte_errno;
  35
  36         if ((unsigned int)error->type >= RTE_DIM(errstrlist) ||
  37                         !errstrlist[error->type])
  38                 errstr = "unknown type";
  39         else
  40                 errstr = errstrlist[error->type];
  41         ERROR("Caught error type %d (%s): %s%s\n",
  42                 error->type, errstr,
  43                 error->cause ? (snprintf(buf, sizeof(buf), "cause: %p, ",
  44                                 error->cause), buf) : "",
  45                 error->message ? error->message : "(no stated reason)");
  46         return -err;
  47 }
  48
  49 static int
  50 eth_dev_flow_isolate_set(struct rte_eth_dev *dev,
  51                          struct sub_device *sdev)
  52 {
  53         struct rte_flow_error ferror;
  54         int ret;
  55
  56         if (!PRIV(dev)->flow_isolated) {
  57                 DEBUG("Flow isolation already disabled");
  58         } else {
  59                 DEBUG("Enabling flow isolation");
  60                 ret = rte_flow_isolate(PORT_ID(sdev),
  61                                        PRIV(dev)->flow_isolated,
  62                                        &ferror);
  63                 if (ret) {
  64                         fs_flow_complain(&ferror);
  65                         return ret;
  66                 }
  67         }
  68         return 0;
  69 }
  70
  71 static int
  72 fs_eth_dev_conf_apply(struct rte_eth_dev *dev,
  73                 struct sub_device *sdev)
  74 {
  75         struct rte_eth_dev *edev;
  76         struct rte_vlan_filter_conf *vfc1;
  77         struct rte_vlan_filter_conf *vfc2;
  78         struct rte_flow *flow;
  79         struct rte_flow_error ferror;
  80         uint32_t i;
  81         int ret;
  82
  83         edev = ETH(sdev);
  84         /* RX queue setup */
  85         for (i = 0; i < dev->data->nb_rx_queues; i++) {
  86                 struct rxq *rxq;
  87
  88                 rxq = dev->data->rx_queues[i];
  89                 ret = rte_eth_rx_queue_setup(PORT_ID(sdev), i,
  90                                 rxq->info.nb_desc, rxq->socket_id,
  91                                 &rxq->info.conf, rxq->info.mp);
  92                 if (ret) {
  93                         ERROR("rx_queue_setup failed");
  94                         return ret;
  95                 }
  96         }
  97         /* TX queue setup */
  98         for (i = 0; i < dev->data->nb_tx_queues; i++) {
  99                 struct txq *txq;
 100
 101                 txq = dev->data->tx_queues[i];
 102                 ret = rte_eth_tx_queue_setup(PORT_ID(sdev), i,
 103                                 txq->info.nb_desc, txq->socket_id,
 104                                 &txq->info.conf);
 105                 if (ret) {
 106                         ERROR("tx_queue_setup failed");
 107                         return ret;
 108                 }
 109         }
 110         /* dev_link.link_status */
 111         if (dev->data->dev_link.link_status !=
 112             edev->data->dev_link.link_status) {
 113                 DEBUG("Configuring link_status");
 114                 if (dev->data->dev_link.link_status)
 115                         ret = rte_eth_dev_set_link_up(PORT_ID(sdev));
 116                 else
 117                         ret = rte_eth_dev_set_link_down(PORT_ID(sdev));
 118                 if (ret) {
 119                         ERROR("Failed to apply link_status");
 120                         return ret;
 121                 }
 122         } else {
 123                 DEBUG("link_status already set");
 124         }
 125         /* promiscuous */
 126         if (dev->data->promiscuous != edev->data->promiscuous) {
 127                 DEBUG("Configuring promiscuous");
 128                 if (dev->data->promiscuous)
 129                         rte_eth_promiscuous_enable(PORT_ID(sdev));
 130                 else
 131                         rte_eth_promiscuous_disable(PORT_ID(sdev));
 132         } else {
 133                 DEBUG("promiscuous already set");
 134         }
 135         /* all_multicast */
 136         if (dev->data->all_multicast != edev->data->all_multicast) {
 137                 DEBUG("Configuring all_multicast");
 138                 if (dev->data->all_multicast)
 139                         rte_eth_allmulticast_enable(PORT_ID(sdev));
 140                 else
 141                         rte_eth_allmulticast_disable(PORT_ID(sdev));
 142         } else {
 143                 DEBUG("all_multicast already set");
 144         }
 145         /* MTU */
 146         if (dev->data->mtu != edev->data->mtu) {
 147                 DEBUG("Configuring MTU");
 148                 ret = rte_eth_dev_set_mtu(PORT_ID(sdev), dev->data->mtu);
 149                 if (ret) {
 150                         ERROR("Failed to apply MTU");
 151                         return ret;
 152                 }
 153         } else {
 154                 DEBUG("MTU already set");
 155         }
 156         /* default MAC */
 157         DEBUG("Configuring default MAC address");
 158         ret = rte_eth_dev_default_mac_addr_set(PORT_ID(sdev),
 159                         &dev->data->mac_addrs[0]);
 160         if (ret) {
 161                 ERROR("Setting default MAC address failed");
 162                 return ret;
 163         }
 164         /* additional MAC */
 165         if (PRIV(dev)->nb_mac_addr > 1)
 166                 DEBUG("Configure additional MAC address%s",
 167                         (PRIV(dev)->nb_mac_addr > 2 ? "es" : ""));
 168         for (i = 1; i < PRIV(dev)->nb_mac_addr; i++) {
 169                 struct rte_ether_addr *ea;
 170
 171                 ea = &dev->data->mac_addrs[i];
 172                 ret = rte_eth_dev_mac_addr_add(PORT_ID(sdev), ea,
 173                                 PRIV(dev)->mac_addr_pool[i]);
 174                 if (ret) {
 175                         char ea_fmt[RTE_ETHER_ADDR_FMT_SIZE];
 176
 177                         rte_ether_format_addr(ea_fmt,
 178                                         RTE_ETHER_ADDR_FMT_SIZE, ea);
 179                         ERROR("Adding MAC address %s failed", ea_fmt);
 180                         return ret;
 181                 }
 182         }
 183         /*
 184          * Propagate multicast MAC addresses to sub-devices,
 185          * if non zero number of addresses is set.
 186          * The condition is required to avoid breakage of failsafe
 187          * for sub-devices which do not support the operation
 188          * if the feature is really not used.
 189          */
 190         if (PRIV(dev)->nb_mcast_addr > 0) {
 191                 DEBUG("Configuring multicast MAC addresses");
 192                 ret = rte_eth_dev_set_mc_addr_list(PORT_ID(sdev),
 193                                                    PRIV(dev)->mcast_addrs,
 194                                                    PRIV(dev)->nb_mcast_addr);
 195                 if (ret) {
 196                         ERROR("Failed to apply multicast MAC addresses");
 197                         return ret;
 198                 }
 199         }
 200         /* VLAN filter */
 201         vfc1 = &dev->data->vlan_filter_conf;
 202         vfc2 = &edev->data->vlan_filter_conf;
 203         if (memcmp(vfc1, vfc2, sizeof(struct rte_vlan_filter_conf))) {
 204                 uint64_t vbit;
 205                 uint64_t ids;
 206                 size_t i;
 207                 uint16_t vlan_id;
 208
 209                 DEBUG("Configuring VLAN filter");
 210                 for (i = 0; i < RTE_DIM(vfc1->ids); i++) {
 211                         if (vfc1->ids[i] == 0)
 212                                 continue;
 213                         ids = vfc1->ids[i];
 214                         while (ids) {
 215                                 vlan_id = 64 * i;
 216                                 /* count trailing zeroes */
 217                                 vbit = ~ids & (ids - 1);
 218                                 /* clear least significant bit set */
 219                                 ids ^= (ids ^ (ids - 1)) ^ vbit;
 220                                 for (; vbit; vlan_id++)
 221                                         vbit >>= 1;
 222                                 ret = rte_eth_dev_vlan_filter(
 223                                         PORT_ID(sdev), vlan_id, 1);
 224                                 if (ret) {
 225                                         ERROR("Failed to apply VLAN filter %hu",
 226                                                 vlan_id);
 227                                         return ret;
 228                                 }
 229                         }
 230                 }
 231         } else {
 232                 DEBUG("VLAN filter already set");
 233         }
 234         /* rte_flow */
 235         if (TAILQ_EMPTY(&PRIV(dev)->flow_list)) {
 236                 DEBUG("rte_flow already set");
 237         } else {
 238                 DEBUG("Resetting rte_flow configuration");
 239                 ret = rte_flow_flush(PORT_ID(sdev), &ferror);
 240                 if (ret) {
 241                         fs_flow_complain(&ferror);
 242                         return ret;
 243                 }
 244                 i = 0;
 245                 rte_errno = 0;
 246                 DEBUG("Configuring rte_flow");
 247                 TAILQ_FOREACH(flow, &PRIV(dev)->flow_list, next) {
 248                         DEBUG("Creating flow #%" PRIu32, i++);
 249                         flow->flows[SUB_ID(sdev)] =
 250                                 rte_flow_create(PORT_ID(sdev),
 251                                                 flow->rule.attr,
 252                                                 flow->rule.pattern,
 253                                                 flow->rule.actions,
 254                                                 &ferror);
 255                         ret = rte_errno;
 256                         if (ret)
 257                                 break;
 258                 }
 259                 if (ret) {
 260                         fs_flow_complain(&ferror);
 261                         return ret;
 262                 }
 263         }
 264         return 0;
 265 }
 266
 267 static void
 268 fs_dev_remove(struct sub_device *sdev)
 269 {
 270         int ret;
 271
 272         if (sdev == NULL)
 273                 return;
 274         switch (sdev->state) {
 275         case DEV_STARTED:
 276                 failsafe_rx_intr_uninstall_subdevice(sdev);
 277                 rte_eth_dev_stop(PORT_ID(sdev));
 278                 sdev->state = DEV_ACTIVE;
 279                 /* fallthrough */
 280         case DEV_ACTIVE:
 281                 failsafe_eth_dev_unregister_callbacks(sdev);
 282                 rte_eth_dev_close(PORT_ID(sdev));
 283                 sdev->state = DEV_PROBED;
 284                 /* fallthrough */
 285         case DEV_PROBED:
 286                 ret = rte_dev_remove(sdev->dev);
 287                 if (ret) {
 288                         ERROR("Bus detach failed for sub_device %u",
 289                               SUB_ID(sdev));
 290                 } else {
 291                         rte_eth_dev_release_port(ETH(sdev));
 292                 }
 293                 sdev->state = DEV_PARSED;
 294                 /* fallthrough */
 295         case DEV_PARSED:
 296         case DEV_UNDEFINED:
 297                 sdev->state = DEV_UNDEFINED;
 298                 sdev->sdev_port_id = RTE_MAX_ETHPORTS;
 299                 /* the end */
 300                 break;
 301         }
 302         sdev->remove = 0;
 303         failsafe_hotplug_alarm_install(fs_dev(sdev));
 304 }
 305
 306 static void
 307 fs_dev_stats_save(struct sub_device *sdev)
 308 {
 309         struct rte_eth_stats stats;
 310         int err;
 311
 312         /* Attempt to read current stats. */
 313         err = rte_eth_stats_get(PORT_ID(sdev), &stats);
 314         if (err) {
 315                 uint64_t timestamp = sdev->stats_snapshot.timestamp;
 316
 317                 WARN("Could not access latest statistics from sub-device %d.\n",
 318                          SUB_ID(sdev));
 319                 if (timestamp != 0)
 320                         WARN("Using latest snapshot taken before %"PRIu64" seconds.\n",
 321                                  (rte_rdtsc() - timestamp) / rte_get_tsc_hz());
 322         }
 323         failsafe_stats_increment
 324                 (&PRIV(fs_dev(sdev))->stats_accumulator,
 325                 err ? &sdev->stats_snapshot.stats : &stats);
 326         memset(&sdev->stats_snapshot, 0, sizeof(sdev->stats_snapshot));
 327 }
 328
 329 static inline int
 330 fs_rxtx_clean(struct sub_device *sdev)
 331 {
 332         uint16_t i;
 333
 334         for (i = 0; i < ETH(sdev)->data->nb_rx_queues; i++)
 335                 if (FS_ATOMIC_RX(sdev, i))
 336                         return 0;
 337         for (i = 0; i < ETH(sdev)->data->nb_tx_queues; i++)
 338                 if (FS_ATOMIC_TX(sdev, i))
 339                         return 0;
 340         return 1;
 341 }
 342
 343 void
 344 failsafe_eth_dev_unregister_callbacks(struct sub_device *sdev)
 345 {
 346         int ret;
 347
 348         if (sdev == NULL)
 349                 return;
 350         if (sdev->rmv_callback) {
 351                 ret = rte_eth_dev_callback_unregister(PORT_ID(sdev),
 352                                                 RTE_ETH_EVENT_INTR_RMV,
 353                                                 failsafe_eth_rmv_event_callback,
 354                                                 sdev);
 355                 if (ret)
 356                         WARN("Failed to unregister RMV callback for sub_device"
 357                              " %d", SUB_ID(sdev));
 358                 sdev->rmv_callback = 0;
 359         }
 360         if (sdev->lsc_callback) {
 361                 ret = rte_eth_dev_callback_unregister(PORT_ID(sdev),
 362                                                 RTE_ETH_EVENT_INTR_LSC,
 363                                                 failsafe_eth_lsc_event_callback,
 364                                                 sdev);
 365                 if (ret)
 366                         WARN("Failed to unregister LSC callback for sub_device"
 367                              " %d", SUB_ID(sdev));
 368                 sdev->lsc_callback = 0;
 369         }
 370 }
 371
 372 void
 373 failsafe_dev_remove(struct rte_eth_dev *dev)
 374 {
 375         struct sub_device *sdev;
 376         uint8_t i;
 377
 378         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 379                 if (sdev->remove && fs_rxtx_clean(sdev)) {
 380                         if (fs_lock(dev, 1) != 0)
 381                                 return;
 382                         fs_dev_stats_save(sdev);
 383                         fs_dev_remove(sdev);
 384                         fs_unlock(dev, 1);
 385                 }
 386 }
 387
 388 static int
 389 failsafe_eth_dev_rx_queues_sync(struct rte_eth_dev *dev)
 390 {
 391         struct rxq *rxq;
 392         int ret;
 393         uint16_t i;
 394
 395         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 396                 rxq = dev->data->rx_queues[i];
 397
 398                 if (rxq->info.conf.rx_deferred_start &&
 399                     dev->data->rx_queue_state[i] ==
 400                                                 RTE_ETH_QUEUE_STATE_STARTED) {
 401                         /*
 402                          * The subdevice Rx queue does not launch on device
 403                          * start if deferred start flag is set. It needs to be
 404                          * started manually in case an appropriate failsafe Rx
 405                          * queue has been started earlier.
 406                          */
 407                         ret = dev->dev_ops->rx_queue_start(dev, i);
 408                         if (ret) {
 409                                 ERROR("Could not synchronize Rx queue %d", i);
 410                                 return ret;
 411                         }
 412                 } else if (dev->data->rx_queue_state[i] ==
 413                                                 RTE_ETH_QUEUE_STATE_STOPPED) {
 414                         /*
 415                          * The subdevice Rx queue needs to be stopped manually
 416                          * in case an appropriate failsafe Rx queue has been
 417                          * stopped earlier.
 418                          */
 419                         ret = dev->dev_ops->rx_queue_stop(dev, i);
 420                         if (ret) {
 421                                 ERROR("Could not synchronize Rx queue %d", i);
 422                                 return ret;
 423                         }
 424                 }
 425         }
 426         return 0;
 427 }
 428
 429 static int
 430 failsafe_eth_dev_tx_queues_sync(struct rte_eth_dev *dev)
 431 {
 432         struct txq *txq;
 433         int ret;
 434         uint16_t i;
 435
 436         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 437                 txq = dev->data->tx_queues[i];
 438
 439                 if (txq->info.conf.tx_deferred_start &&
 440                     dev->data->tx_queue_state[i] ==
 441                                                 RTE_ETH_QUEUE_STATE_STARTED) {
 442                         /*
 443                          * The subdevice Tx queue does not launch on device
 444                          * start if deferred start flag is set. It needs to be
 445                          * started manually in case an appropriate failsafe Tx
 446                          * queue has been started earlier.
 447                          */
 448                         ret = dev->dev_ops->tx_queue_start(dev, i);
 449                         if (ret) {
 450                                 ERROR("Could not synchronize Tx queue %d", i);
 451                                 return ret;
 452                         }
 453                 } else if (dev->data->tx_queue_state[i] ==
 454                                                 RTE_ETH_QUEUE_STATE_STOPPED) {
 455                         /*
 456                          * The subdevice Tx queue needs to be stopped manually
 457                          * in case an appropriate failsafe Tx queue has been
 458                          * stopped earlier.
 459                          */
 460                         ret = dev->dev_ops->tx_queue_stop(dev, i);
 461                         if (ret) {
 462                                 ERROR("Could not synchronize Tx queue %d", i);
 463                                 return ret;
 464                         }
 465                 }
 466         }
 467         return 0;
 468 }
 469
 470 int
 471 failsafe_eth_dev_state_sync(struct rte_eth_dev *dev)
 472 {
 473         struct sub_device *sdev;
 474         uint32_t inactive;
 475         int ret;
 476         uint8_t i;
 477
 478         if (PRIV(dev)->state < DEV_PARSED)
 479                 return 0;
 480
 481         ret = failsafe_args_parse_subs(dev);
 482         if (ret)
 483                 goto err_remove;
 484
 485         if (PRIV(dev)->state < DEV_PROBED)
 486                 return 0;
 487         ret = failsafe_eal_init(dev);
 488         if (ret)
 489                 goto err_remove;
 490         if (PRIV(dev)->state < DEV_ACTIVE)
 491                 return 0;
 492         inactive = 0;
 493         FOREACH_SUBDEV(sdev, i, dev) {
 494                 if (sdev->state == DEV_PROBED) {
 495                         inactive |= UINT32_C(1) << i;
 496                         ret = eth_dev_flow_isolate_set(dev, sdev);
 497                         if (ret) {
 498                                 ERROR("Could not apply configuration to sub_device %d",
 499                                       i);
 500                                 goto err_remove;
 501                         }
 502                 }
 503         }
 504         ret = dev->dev_ops->dev_configure(dev);
 505         if (ret)
 506                 goto err_remove;
 507         FOREACH_SUBDEV(sdev, i, dev) {
 508                 if (inactive & (UINT32_C(1) << i)) {
 509                         ret = fs_eth_dev_conf_apply(dev, sdev);
 510                         if (ret) {
 511                                 ERROR("Could not apply configuration to sub_device %d",
 512                                       i);
 513                                 goto err_remove;
 514                         }
 515                 }
 516         }
 517         /*
 518          * If new devices have been configured, check if
 519          * the link state has changed.
 520          */
 521         if (inactive)
 522                 dev->dev_ops->link_update(dev, 1);
 523         if (PRIV(dev)->state < DEV_STARTED)
 524                 return 0;
 525         ret = dev->dev_ops->dev_start(dev);
 526         if (ret)
 527                 goto err_remove;
 528         ret = failsafe_eth_dev_rx_queues_sync(dev);
 529         if (ret)
 530                 goto err_remove;
 531         ret = failsafe_eth_dev_tx_queues_sync(dev);
 532         if (ret)
 533                 goto err_remove;
 534         return 0;
 535 err_remove:
 536         FOREACH_SUBDEV(sdev, i, dev)
 537                 if (sdev->state != PRIV(dev)->state)
 538                         sdev->remove = 1;
 539         return ret;
 540 }
 541
 542 void
 543 failsafe_stats_increment(struct rte_eth_stats *to, struct rte_eth_stats *from)
 544 {
 545         uint32_t i;
 546
 547         RTE_ASSERT(to != NULL && from != NULL);
 548         to->ipackets += from->ipackets;
 549         to->opackets += from->opackets;
 550         to->ibytes += from->ibytes;
 551         to->obytes += from->obytes;
 552         to->imissed += from->imissed;
 553         to->ierrors += from->ierrors;
 554         to->oerrors += from->oerrors;
 555         to->rx_nombuf += from->rx_nombuf;
 556         for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS; i++) {
 557                 to->q_ipackets[i] += from->q_ipackets[i];
 558                 to->q_opackets[i] += from->q_opackets[i];
 559                 to->q_ibytes[i] += from->q_ibytes[i];
 560                 to->q_obytes[i] += from->q_obytes[i];
 561                 to->q_errors[i] += from->q_errors[i];
 562         }
 563 }
 564
 565 int
 566 failsafe_eth_rmv_event_callback(uint16_t port_id __rte_unused,
 567                                 enum rte_eth_event_type event __rte_unused,
 568                                 void *cb_arg, void *out __rte_unused)
 569 {
 570         struct sub_device *sdev = cb_arg;
 571
 572         fs_lock(fs_dev(sdev), 0);
 573         /* Switch as soon as possible tx_dev. */
 574         fs_switch_dev(fs_dev(sdev), sdev);
 575         /* Use safe bursts in any case. */
 576         failsafe_set_burst_fn(fs_dev(sdev), 1);
 577         /*
 578          * Async removal, the sub-PMD will try to unregister
 579          * the callback at the source of the current thread context.
 580          */
 581         sdev->remove = 1;
 582         fs_unlock(fs_dev(sdev), 0);
 583         return 0;
 584 }
 585
 586 int
 587 failsafe_eth_lsc_event_callback(uint16_t port_id __rte_unused,
 588                                 enum rte_eth_event_type event __rte_unused,
 589                                 void *cb_arg, void *out __rte_unused)
 590 {
 591         struct rte_eth_dev *dev = cb_arg;
 592         int ret;
 593
 594         ret = dev->dev_ops->link_update(dev, 0);
 595         /* We must pass on the LSC event */
 596         if (ret)
 597                 return _rte_eth_dev_callback_process(dev,
 598                                                      RTE_ETH_EVENT_INTR_LSC,
 599                                                      NULL);
 600         else
 601                 return 0;
 602 }
 603
 604 /* Take sub-device ownership before it becomes exposed to the application. */
 605 int
 606 failsafe_eth_new_event_callback(uint16_t port_id,
 607                                 enum rte_eth_event_type event __rte_unused,
 608                                 void *cb_arg, void *out __rte_unused)
 609 {
 610         struct rte_eth_dev *fs_dev = cb_arg;
 611         struct sub_device *sdev;
 612         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 613         uint8_t i;
 614
 615         FOREACH_SUBDEV_STATE(sdev, i, fs_dev, DEV_PARSED) {
 616                 if (sdev->state >= DEV_PROBED)
 617                         continue;
 618                 if (strcmp(sdev->devargs.name, dev->device->name) != 0)
 619                         continue;
 620                 rte_eth_dev_owner_set(port_id, &PRIV(fs_dev)->my_owner);
 621                 /* The actual owner will be checked after the port probing. */
 622                 break;
 623         }
 624         return 0;
 625 }