drivers/net/failsafe/failsafe_ops.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright 2017 6WIND S.A.
   5  *   Copyright 2017 Mellanox.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of 6WIND S.A. nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <stdint.h>
  35
  36 #include <rte_debug.h>
  37 #include <rte_atomic.h>
  38 #include <rte_ethdev.h>
  39 #include <rte_malloc.h>
  40 #include <rte_flow.h>
  41 #include <rte_cycles.h>
  42
  43 #include "failsafe_private.h"
  44
  45 static struct rte_eth_dev_info default_infos = {
  46         /* Max possible number of elements */
  47         .max_rx_pktlen = UINT32_MAX,
  48         .max_rx_queues = RTE_MAX_QUEUES_PER_PORT,
  49         .max_tx_queues = RTE_MAX_QUEUES_PER_PORT,
  50         .max_mac_addrs = FAILSAFE_MAX_ETHADDR,
  51         .max_hash_mac_addrs = UINT32_MAX,
  52         .max_vfs = UINT16_MAX,
  53         .max_vmdq_pools = UINT16_MAX,
  54         .rx_desc_lim = {
  55                 .nb_max = UINT16_MAX,
  56                 .nb_min = 0,
  57                 .nb_align = 1,
  58                 .nb_seg_max = UINT16_MAX,
  59                 .nb_mtu_seg_max = UINT16_MAX,
  60         },
  61         .tx_desc_lim = {
  62                 .nb_max = UINT16_MAX,
  63                 .nb_min = 0,
  64                 .nb_align = 1,
  65                 .nb_seg_max = UINT16_MAX,
  66                 .nb_mtu_seg_max = UINT16_MAX,
  67         },
  68         /*
  69          * Set of capabilities that can be verified upon
  70          * configuring a sub-device.
  71          */
  72         .rx_offload_capa =
  73                 DEV_RX_OFFLOAD_VLAN_STRIP |
  74                 DEV_RX_OFFLOAD_QINQ_STRIP |
  75                 DEV_RX_OFFLOAD_IPV4_CKSUM |
  76                 DEV_RX_OFFLOAD_UDP_CKSUM |
  77                 DEV_RX_OFFLOAD_TCP_CKSUM |
  78                 DEV_RX_OFFLOAD_TCP_LRO,
  79         .tx_offload_capa = 0x0,
  80         .flow_type_rss_offloads = 0x0,
  81 };
  82
  83 static int
  84 fs_dev_configure(struct rte_eth_dev *dev)
  85 {
  86         struct sub_device *sdev;
  87         uint8_t i;
  88         int ret;
  89
  90         FOREACH_SUBDEV(sdev, i, dev) {
  91                 int rmv_interrupt = 0;
  92                 int lsc_interrupt = 0;
  93                 int lsc_enabled;
  94
  95                 if (sdev->state != DEV_PROBED)
  96                         continue;
  97
  98                 rmv_interrupt = ETH(sdev)->data->dev_flags &
  99                                 RTE_ETH_DEV_INTR_RMV;
 100                 if (rmv_interrupt) {
 101                         DEBUG("Enabling RMV interrupts for sub_device %d", i);
 102                         dev->data->dev_conf.intr_conf.rmv = 1;
 103                 } else {
 104                         DEBUG("sub_device %d does not support RMV event", i);
 105                 }
 106                 lsc_enabled = dev->data->dev_conf.intr_conf.lsc;
 107                 lsc_interrupt = lsc_enabled &&
 108                                 (ETH(sdev)->data->dev_flags &
 109                                  RTE_ETH_DEV_INTR_LSC);
 110                 if (lsc_interrupt) {
 111                         DEBUG("Enabling LSC interrupts for sub_device %d", i);
 112                         dev->data->dev_conf.intr_conf.lsc = 1;
 113                 } else if (lsc_enabled && !lsc_interrupt) {
 114                         DEBUG("Disabling LSC interrupts for sub_device %d", i);
 115                         dev->data->dev_conf.intr_conf.lsc = 0;
 116                 }
 117                 DEBUG("Configuring sub-device %d", i);
 118                 sdev->remove = 0;
 119                 ret = rte_eth_dev_configure(PORT_ID(sdev),
 120                                         dev->data->nb_rx_queues,
 121                                         dev->data->nb_tx_queues,
 122                                         &dev->data->dev_conf);
 123                 if (ret) {
 124                         ERROR("Could not configure sub_device %d", i);
 125                         return ret;
 126                 }
 127                 if (rmv_interrupt) {
 128                         ret = rte_eth_dev_callback_register(PORT_ID(sdev),
 129                                         RTE_ETH_EVENT_INTR_RMV,
 130                                         failsafe_eth_rmv_event_callback,
 131                                         sdev);
 132                         if (ret)
 133                                 WARN("Failed to register RMV callback for sub_device %d",
 134                                      SUB_ID(sdev));
 135                 }
 136                 dev->data->dev_conf.intr_conf.rmv = 0;
 137                 if (lsc_interrupt) {
 138                         ret = rte_eth_dev_callback_register(PORT_ID(sdev),
 139                                                 RTE_ETH_EVENT_INTR_LSC,
 140                                                 failsafe_eth_lsc_event_callback,
 141                                                 dev);
 142                         if (ret)
 143                                 WARN("Failed to register LSC callback for sub_device %d",
 144                                      SUB_ID(sdev));
 145                 }
 146                 dev->data->dev_conf.intr_conf.lsc = lsc_enabled;
 147                 sdev->state = DEV_ACTIVE;
 148         }
 149         if (PRIV(dev)->state < DEV_ACTIVE)
 150                 PRIV(dev)->state = DEV_ACTIVE;
 151         return 0;
 152 }
 153
 154 static int
 155 fs_dev_start(struct rte_eth_dev *dev)
 156 {
 157         struct sub_device *sdev;
 158         uint8_t i;
 159         int ret;
 160
 161         FOREACH_SUBDEV(sdev, i, dev) {
 162                 if (sdev->state != DEV_ACTIVE)
 163                         continue;
 164                 DEBUG("Starting sub_device %d", i);
 165                 ret = rte_eth_dev_start(PORT_ID(sdev));
 166                 if (ret)
 167                         return ret;
 168                 sdev->state = DEV_STARTED;
 169         }
 170         if (PRIV(dev)->state < DEV_STARTED)
 171                 PRIV(dev)->state = DEV_STARTED;
 172         fs_switch_dev(dev, NULL);
 173         return 0;
 174 }
 175
 176 static void
 177 fs_dev_stop(struct rte_eth_dev *dev)
 178 {
 179         struct sub_device *sdev;
 180         uint8_t i;
 181
 182         PRIV(dev)->state = DEV_STARTED - 1;
 183         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_STARTED) {
 184                 rte_eth_dev_stop(PORT_ID(sdev));
 185                 sdev->state = DEV_STARTED - 1;
 186         }
 187 }
 188
 189 static int
 190 fs_dev_set_link_up(struct rte_eth_dev *dev)
 191 {
 192         struct sub_device *sdev;
 193         uint8_t i;
 194         int ret;
 195
 196         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 197                 DEBUG("Calling rte_eth_dev_set_link_up on sub_device %d", i);
 198                 ret = rte_eth_dev_set_link_up(PORT_ID(sdev));
 199                 if (ret) {
 200                         ERROR("Operation rte_eth_dev_set_link_up failed for sub_device %d"
 201                               " with error %d", i, ret);
 202                         return ret;
 203                 }
 204         }
 205         return 0;
 206 }
 207
 208 static int
 209 fs_dev_set_link_down(struct rte_eth_dev *dev)
 210 {
 211         struct sub_device *sdev;
 212         uint8_t i;
 213         int ret;
 214
 215         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 216                 DEBUG("Calling rte_eth_dev_set_link_down on sub_device %d", i);
 217                 ret = rte_eth_dev_set_link_down(PORT_ID(sdev));
 218                 if (ret) {
 219                         ERROR("Operation rte_eth_dev_set_link_down failed for sub_device %d"
 220                               " with error %d", i, ret);
 221                         return ret;
 222                 }
 223         }
 224         return 0;
 225 }
 226
 227 static void fs_dev_free_queues(struct rte_eth_dev *dev);
 228 static void
 229 fs_dev_close(struct rte_eth_dev *dev)
 230 {
 231         struct sub_device *sdev;
 232         uint8_t i;
 233
 234         failsafe_hotplug_alarm_cancel(dev);
 235         if (PRIV(dev)->state == DEV_STARTED)
 236                 dev->dev_ops->dev_stop(dev);
 237         PRIV(dev)->state = DEV_ACTIVE - 1;
 238         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 239                 DEBUG("Closing sub_device %d", i);
 240                 rte_eth_dev_close(PORT_ID(sdev));
 241                 sdev->state = DEV_ACTIVE - 1;
 242         }
 243         fs_dev_free_queues(dev);
 244 }
 245
 246 static void
 247 fs_rx_queue_release(void *queue)
 248 {
 249         struct rte_eth_dev *dev;
 250         struct sub_device *sdev;
 251         uint8_t i;
 252         struct rxq *rxq;
 253
 254         if (queue == NULL)
 255                 return;
 256         rxq = queue;
 257         dev = rxq->priv->dev;
 258         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 259                 SUBOPS(sdev, rx_queue_release)
 260                         (ETH(sdev)->data->rx_queues[rxq->qid]);
 261         dev->data->rx_queues[rxq->qid] = NULL;
 262         rte_free(rxq);
 263 }
 264
 265 static int
 266 fs_rx_queue_setup(struct rte_eth_dev *dev,
 267                 uint16_t rx_queue_id,
 268                 uint16_t nb_rx_desc,
 269                 unsigned int socket_id,
 270                 const struct rte_eth_rxconf *rx_conf,
 271                 struct rte_mempool *mb_pool)
 272 {
 273         struct sub_device *sdev;
 274         struct rxq *rxq;
 275         uint8_t i;
 276         int ret;
 277
 278         rxq = dev->data->rx_queues[rx_queue_id];
 279         if (rxq != NULL) {
 280                 fs_rx_queue_release(rxq);
 281                 dev->data->rx_queues[rx_queue_id] = NULL;
 282         }
 283         rxq = rte_zmalloc(NULL,
 284                           sizeof(*rxq) +
 285                           sizeof(rte_atomic64_t) * PRIV(dev)->subs_tail,
 286                           RTE_CACHE_LINE_SIZE);
 287         if (rxq == NULL)
 288                 return -ENOMEM;
 289         FOREACH_SUBDEV(sdev, i, dev)
 290                 rte_atomic64_init(&rxq->refcnt[i]);
 291         rxq->qid = rx_queue_id;
 292         rxq->socket_id = socket_id;
 293         rxq->info.mp = mb_pool;
 294         rxq->info.conf = *rx_conf;
 295         rxq->info.nb_desc = nb_rx_desc;
 296         rxq->priv = PRIV(dev);
 297         dev->data->rx_queues[rx_queue_id] = rxq;
 298         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 299                 ret = rte_eth_rx_queue_setup(PORT_ID(sdev),
 300                                 rx_queue_id,
 301                                 nb_rx_desc, socket_id,
 302                                 rx_conf, mb_pool);
 303                 if (ret) {
 304                         ERROR("RX queue setup failed for sub_device %d", i);
 305                         goto free_rxq;
 306                 }
 307         }
 308         return 0;
 309 free_rxq:
 310         fs_rx_queue_release(rxq);
 311         return ret;
 312 }
 313
 314 static void
 315 fs_tx_queue_release(void *queue)
 316 {
 317         struct rte_eth_dev *dev;
 318         struct sub_device *sdev;
 319         uint8_t i;
 320         struct txq *txq;
 321
 322         if (queue == NULL)
 323                 return;
 324         txq = queue;
 325         dev = txq->priv->dev;
 326         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 327                 SUBOPS(sdev, tx_queue_release)
 328                         (ETH(sdev)->data->tx_queues[txq->qid]);
 329         dev->data->tx_queues[txq->qid] = NULL;
 330         rte_free(txq);
 331 }
 332
 333 static int
 334 fs_tx_queue_setup(struct rte_eth_dev *dev,
 335                 uint16_t tx_queue_id,
 336                 uint16_t nb_tx_desc,
 337                 unsigned int socket_id,
 338                 const struct rte_eth_txconf *tx_conf)
 339 {
 340         struct sub_device *sdev;
 341         struct txq *txq;
 342         uint8_t i;
 343         int ret;
 344
 345         txq = dev->data->tx_queues[tx_queue_id];
 346         if (txq != NULL) {
 347                 fs_tx_queue_release(txq);
 348                 dev->data->tx_queues[tx_queue_id] = NULL;
 349         }
 350         txq = rte_zmalloc("ethdev TX queue",
 351                           sizeof(*txq) +
 352                           sizeof(rte_atomic64_t) * PRIV(dev)->subs_tail,
 353                           RTE_CACHE_LINE_SIZE);
 354         if (txq == NULL)
 355                 return -ENOMEM;
 356         FOREACH_SUBDEV(sdev, i, dev)
 357                 rte_atomic64_init(&txq->refcnt[i]);
 358         txq->qid = tx_queue_id;
 359         txq->socket_id = socket_id;
 360         txq->info.conf = *tx_conf;
 361         txq->info.nb_desc = nb_tx_desc;
 362         txq->priv = PRIV(dev);
 363         dev->data->tx_queues[tx_queue_id] = txq;
 364         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 365                 ret = rte_eth_tx_queue_setup(PORT_ID(sdev),
 366                                 tx_queue_id,
 367                                 nb_tx_desc, socket_id,
 368                                 tx_conf);
 369                 if (ret) {
 370                         ERROR("TX queue setup failed for sub_device %d", i);
 371                         goto free_txq;
 372                 }
 373         }
 374         return 0;
 375 free_txq:
 376         fs_tx_queue_release(txq);
 377         return ret;
 378 }
 379
 380 static void
 381 fs_dev_free_queues(struct rte_eth_dev *dev)
 382 {
 383         uint16_t i;
 384
 385         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 386                 fs_rx_queue_release(dev->data->rx_queues[i]);
 387                 dev->data->rx_queues[i] = NULL;
 388         }
 389         dev->data->nb_rx_queues = 0;
 390         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 391                 fs_tx_queue_release(dev->data->tx_queues[i]);
 392                 dev->data->tx_queues[i] = NULL;
 393         }
 394         dev->data->nb_tx_queues = 0;
 395 }
 396
 397 static void
 398 fs_promiscuous_enable(struct rte_eth_dev *dev)
 399 {
 400         struct sub_device *sdev;
 401         uint8_t i;
 402
 403         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 404                 rte_eth_promiscuous_enable(PORT_ID(sdev));
 405 }
 406
 407 static void
 408 fs_promiscuous_disable(struct rte_eth_dev *dev)
 409 {
 410         struct sub_device *sdev;
 411         uint8_t i;
 412
 413         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 414                 rte_eth_promiscuous_disable(PORT_ID(sdev));
 415 }
 416
 417 static void
 418 fs_allmulticast_enable(struct rte_eth_dev *dev)
 419 {
 420         struct sub_device *sdev;
 421         uint8_t i;
 422
 423         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 424                 rte_eth_allmulticast_enable(PORT_ID(sdev));
 425 }
 426
 427 static void
 428 fs_allmulticast_disable(struct rte_eth_dev *dev)
 429 {
 430         struct sub_device *sdev;
 431         uint8_t i;
 432
 433         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 434                 rte_eth_allmulticast_disable(PORT_ID(sdev));
 435 }
 436
 437 static int
 438 fs_link_update(struct rte_eth_dev *dev,
 439                 int wait_to_complete)
 440 {
 441         struct sub_device *sdev;
 442         uint8_t i;
 443         int ret;
 444
 445         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 446                 DEBUG("Calling link_update on sub_device %d", i);
 447                 ret = (SUBOPS(sdev, link_update))(ETH(sdev), wait_to_complete);
 448                 if (ret && ret != -1) {
 449                         ERROR("Link update failed for sub_device %d with error %d",
 450                               i, ret);
 451                         return ret;
 452                 }
 453         }
 454         if (TX_SUBDEV(dev)) {
 455                 struct rte_eth_link *l1;
 456                 struct rte_eth_link *l2;
 457
 458                 l1 = &dev->data->dev_link;
 459                 l2 = &ETH(TX_SUBDEV(dev))->data->dev_link;
 460                 if (memcmp(l1, l2, sizeof(*l1))) {
 461                         *l1 = *l2;
 462                         return 0;
 463                 }
 464         }
 465         return -1;
 466 }
 467
 468 static int
 469 fs_stats_get(struct rte_eth_dev *dev,
 470              struct rte_eth_stats *stats)
 471 {
 472         struct sub_device *sdev;
 473         uint8_t i;
 474         int ret;
 475
 476         rte_memcpy(stats, &PRIV(dev)->stats_accumulator, sizeof(*stats));
 477         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 478                 struct rte_eth_stats *snapshot = &sdev->stats_snapshot.stats;
 479                 uint64_t *timestamp = &sdev->stats_snapshot.timestamp;
 480
 481                 ret = rte_eth_stats_get(PORT_ID(sdev), snapshot);
 482                 if (ret) {
 483                         ERROR("Operation rte_eth_stats_get failed for sub_device %d with error %d",
 484                                   i, ret);
 485                         *timestamp = 0;
 486                         return ret;
 487                 }
 488                 *timestamp = rte_rdtsc();
 489                 failsafe_stats_increment(stats, snapshot);
 490         }
 491         return 0;
 492 }
 493
 494 static void
 495 fs_stats_reset(struct rte_eth_dev *dev)
 496 {
 497         struct sub_device *sdev;
 498         uint8_t i;
 499
 500         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 501                 rte_eth_stats_reset(PORT_ID(sdev));
 502                 memset(&sdev->stats_snapshot, 0, sizeof(struct rte_eth_stats));
 503         }
 504         memset(&PRIV(dev)->stats_accumulator, 0, sizeof(struct rte_eth_stats));
 505 }
 506
 507 /**
 508  * Fail-safe dev_infos_get rules:
 509  *
 510  * No sub_device:
 511  *   Numerables:
 512  *      Use the maximum possible values for any field, so as not
 513  *      to impede any further configuration effort.
 514  *   Capabilities:
 515  *      Limits capabilities to those that are understood by the
 516  *      fail-safe PMD. This understanding stems from the fail-safe
 517  *      being capable of verifying that the related capability is
 518  *      expressed within the device configuration (struct rte_eth_conf).
 519  *
 520  * At least one probed sub_device:
 521  *   Numerables:
 522  *      Uses values from the active probed sub_device
 523  *      The rationale here is that if any sub_device is less capable
 524  *      (for example concerning the number of queues) than the active
 525  *      sub_device, then its subsequent configuration will fail.
 526  *      It is impossible to foresee this failure when the failing sub_device
 527  *      is supposed to be plugged-in later on, so the configuration process
 528  *      is the single point of failure and error reporting.
 529  *   Capabilities:
 530  *      Uses a logical AND of RX capabilities among
 531  *      all sub_devices and the default capabilities.
 532  *      Uses a logical AND of TX capabilities among
 533  *      the active probed sub_device and the default capabilities.
 534  *
 535  */
 536 static void
 537 fs_dev_infos_get(struct rte_eth_dev *dev,
 538                   struct rte_eth_dev_info *infos)
 539 {
 540         struct sub_device *sdev;
 541         uint8_t i;
 542
 543         sdev = TX_SUBDEV(dev);
 544         if (sdev == NULL) {
 545                 DEBUG("No probed device, using default infos");
 546                 rte_memcpy(&PRIV(dev)->infos, &default_infos,
 547                            sizeof(default_infos));
 548         } else {
 549                 uint32_t rx_offload_capa;
 550
 551                 rx_offload_capa = default_infos.rx_offload_capa;
 552                 FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_PROBED) {
 553                         rte_eth_dev_info_get(PORT_ID(sdev),
 554                                         &PRIV(dev)->infos);
 555                         rx_offload_capa &= PRIV(dev)->infos.rx_offload_capa;
 556                 }
 557                 sdev = TX_SUBDEV(dev);
 558                 rte_eth_dev_info_get(PORT_ID(sdev), &PRIV(dev)->infos);
 559                 PRIV(dev)->infos.rx_offload_capa = rx_offload_capa;
 560                 PRIV(dev)->infos.tx_offload_capa &=
 561                                         default_infos.tx_offload_capa;
 562                 PRIV(dev)->infos.flow_type_rss_offloads &=
 563                                         default_infos.flow_type_rss_offloads;
 564         }
 565         rte_memcpy(infos, &PRIV(dev)->infos, sizeof(*infos));
 566 }
 567
 568 static const uint32_t *
 569 fs_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 570 {
 571         struct sub_device *sdev;
 572         struct rte_eth_dev *edev;
 573
 574         sdev = TX_SUBDEV(dev);
 575         if (sdev == NULL)
 576                 return NULL;
 577         edev = ETH(sdev);
 578         /* ENOTSUP: counts as no supported ptypes */
 579         if (SUBOPS(sdev, dev_supported_ptypes_get) == NULL)
 580                 return NULL;
 581         /*
 582          * The API does not permit to do a clean AND of all ptypes,
 583          * It is also incomplete by design and we do not really care
 584          * to have a best possible value in this context.
 585          * We just return the ptypes of the device of highest
 586          * priority, usually the PREFERRED device.
 587          */
 588         return SUBOPS(sdev, dev_supported_ptypes_get)(edev);
 589 }
 590
 591 static int
 592 fs_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 593 {
 594         struct sub_device *sdev;
 595         uint8_t i;
 596         int ret;
 597
 598         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 599                 DEBUG("Calling rte_eth_dev_set_mtu on sub_device %d", i);
 600                 ret = rte_eth_dev_set_mtu(PORT_ID(sdev), mtu);
 601                 if (ret) {
 602                         ERROR("Operation rte_eth_dev_set_mtu failed for sub_device %d with error %d",
 603                               i, ret);
 604                         return ret;
 605                 }
 606         }
 607         return 0;
 608 }
 609
 610 static int
 611 fs_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 612 {
 613         struct sub_device *sdev;
 614         uint8_t i;
 615         int ret;
 616
 617         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 618                 DEBUG("Calling rte_eth_dev_vlan_filter on sub_device %d", i);
 619                 ret = rte_eth_dev_vlan_filter(PORT_ID(sdev), vlan_id, on);
 620                 if (ret) {
 621                         ERROR("Operation rte_eth_dev_vlan_filter failed for sub_device %d"
 622                               " with error %d", i, ret);
 623                         return ret;
 624                 }
 625         }
 626         return 0;
 627 }
 628
 629 static int
 630 fs_flow_ctrl_get(struct rte_eth_dev *dev,
 631                 struct rte_eth_fc_conf *fc_conf)
 632 {
 633         struct sub_device *sdev;
 634
 635         sdev = TX_SUBDEV(dev);
 636         if (sdev == NULL)
 637                 return 0;
 638         if (SUBOPS(sdev, flow_ctrl_get) == NULL)
 639                 return -ENOTSUP;
 640         return SUBOPS(sdev, flow_ctrl_get)(ETH(sdev), fc_conf);
 641 }
 642
 643 static int
 644 fs_flow_ctrl_set(struct rte_eth_dev *dev,
 645                 struct rte_eth_fc_conf *fc_conf)
 646 {
 647         struct sub_device *sdev;
 648         uint8_t i;
 649         int ret;
 650
 651         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 652                 DEBUG("Calling rte_eth_dev_flow_ctrl_set on sub_device %d", i);
 653                 ret = rte_eth_dev_flow_ctrl_set(PORT_ID(sdev), fc_conf);
 654                 if (ret) {
 655                         ERROR("Operation rte_eth_dev_flow_ctrl_set failed for sub_device %d"
 656                               " with error %d", i, ret);
 657                         return ret;
 658                 }
 659         }
 660         return 0;
 661 }
 662
 663 static void
 664 fs_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
 665 {
 666         struct sub_device *sdev;
 667         uint8_t i;
 668
 669         /* No check: already done within the rte_eth_dev_mac_addr_remove
 670          * call for the fail-safe device.
 671          */
 672         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 673                 rte_eth_dev_mac_addr_remove(PORT_ID(sdev),
 674                                 &dev->data->mac_addrs[index]);
 675         PRIV(dev)->mac_addr_pool[index] = 0;
 676 }
 677
 678 static int
 679 fs_mac_addr_add(struct rte_eth_dev *dev,
 680                 struct ether_addr *mac_addr,
 681                 uint32_t index,
 682                 uint32_t vmdq)
 683 {
 684         struct sub_device *sdev;
 685         int ret;
 686         uint8_t i;
 687
 688         RTE_ASSERT(index < FAILSAFE_MAX_ETHADDR);
 689         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 690                 ret = rte_eth_dev_mac_addr_add(PORT_ID(sdev), mac_addr, vmdq);
 691                 if (ret) {
 692                         ERROR("Operation rte_eth_dev_mac_addr_add failed for sub_device %"
 693                               PRIu8 " with error %d", i, ret);
 694                         return ret;
 695                 }
 696         }
 697         if (index >= PRIV(dev)->nb_mac_addr) {
 698                 DEBUG("Growing mac_addrs array");
 699                 PRIV(dev)->nb_mac_addr = index;
 700         }
 701         PRIV(dev)->mac_addr_pool[index] = vmdq;
 702         return 0;
 703 }
 704
 705 static void
 706 fs_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 707 {
 708         struct sub_device *sdev;
 709         uint8_t i;
 710
 711         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 712                 rte_eth_dev_default_mac_addr_set(PORT_ID(sdev), mac_addr);
 713 }
 714
 715 static int
 716 fs_filter_ctrl(struct rte_eth_dev *dev,
 717                 enum rte_filter_type type,
 718                 enum rte_filter_op op,
 719                 void *arg)
 720 {
 721         struct sub_device *sdev;
 722         uint8_t i;
 723         int ret;
 724
 725         if (type == RTE_ETH_FILTER_GENERIC &&
 726             op == RTE_ETH_FILTER_GET) {
 727                 *(const void **)arg = &fs_flow_ops;
 728                 return 0;
 729         }
 730         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 731                 DEBUG("Calling rte_eth_dev_filter_ctrl on sub_device %d", i);
 732                 ret = rte_eth_dev_filter_ctrl(PORT_ID(sdev), type, op, arg);
 733                 if (ret) {
 734                         ERROR("Operation rte_eth_dev_filter_ctrl failed for sub_device %d"
 735                               " with error %d", i, ret);
 736                         return ret;
 737                 }
 738         }
 739         return 0;
 740 }
 741
 742 const struct eth_dev_ops failsafe_ops = {
 743         .dev_configure = fs_dev_configure,
 744         .dev_start = fs_dev_start,
 745         .dev_stop = fs_dev_stop,
 746         .dev_set_link_down = fs_dev_set_link_down,
 747         .dev_set_link_up = fs_dev_set_link_up,
 748         .dev_close = fs_dev_close,
 749         .promiscuous_enable = fs_promiscuous_enable,
 750         .promiscuous_disable = fs_promiscuous_disable,
 751         .allmulticast_enable = fs_allmulticast_enable,
 752         .allmulticast_disable = fs_allmulticast_disable,
 753         .link_update = fs_link_update,
 754         .stats_get = fs_stats_get,
 755         .stats_reset = fs_stats_reset,
 756         .dev_infos_get = fs_dev_infos_get,
 757         .dev_supported_ptypes_get = fs_dev_supported_ptypes_get,
 758         .mtu_set = fs_mtu_set,
 759         .vlan_filter_set = fs_vlan_filter_set,
 760         .rx_queue_setup = fs_rx_queue_setup,
 761         .tx_queue_setup = fs_tx_queue_setup,
 762         .rx_queue_release = fs_rx_queue_release,
 763         .tx_queue_release = fs_tx_queue_release,
 764         .flow_ctrl_get = fs_flow_ctrl_get,
 765         .flow_ctrl_set = fs_flow_ctrl_set,
 766         .mac_addr_remove = fs_mac_addr_remove,
 767         .mac_addr_add = fs_mac_addr_add,
 768         .mac_addr_set = fs_mac_addr_set,
 769         .filter_ctrl = fs_filter_ctrl,
 770 };