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 && sdev->rmv_callback == 0) {
 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                         else
 136                                 sdev->rmv_callback = 1;
 137                 }
 138                 dev->data->dev_conf.intr_conf.rmv = 0;
 139                 if (lsc_interrupt && sdev->lsc_callback == 0) {
 140                         ret = rte_eth_dev_callback_register(PORT_ID(sdev),
 141                                                 RTE_ETH_EVENT_INTR_LSC,
 142                                                 failsafe_eth_lsc_event_callback,
 143                                                 dev);
 144                         if (ret)
 145                                 WARN("Failed to register LSC callback for sub_device %d",
 146                                      SUB_ID(sdev));
 147                         else
 148                                 sdev->lsc_callback = 1;
 149                 }
 150                 dev->data->dev_conf.intr_conf.lsc = lsc_enabled;
 151                 sdev->state = DEV_ACTIVE;
 152         }
 153         if (PRIV(dev)->state < DEV_ACTIVE)
 154                 PRIV(dev)->state = DEV_ACTIVE;
 155         return 0;
 156 }
 157
 158 static int
 159 fs_dev_start(struct rte_eth_dev *dev)
 160 {
 161         struct sub_device *sdev;
 162         uint8_t i;
 163         int ret;
 164
 165         FOREACH_SUBDEV(sdev, i, dev) {
 166                 if (sdev->state != DEV_ACTIVE)
 167                         continue;
 168                 DEBUG("Starting sub_device %d", i);
 169                 ret = rte_eth_dev_start(PORT_ID(sdev));
 170                 if (ret)
 171                         return ret;
 172                 sdev->state = DEV_STARTED;
 173         }
 174         if (PRIV(dev)->state < DEV_STARTED)
 175                 PRIV(dev)->state = DEV_STARTED;
 176         fs_switch_dev(dev, NULL);
 177         return 0;
 178 }
 179
 180 static void
 181 fs_dev_stop(struct rte_eth_dev *dev)
 182 {
 183         struct sub_device *sdev;
 184         uint8_t i;
 185
 186         PRIV(dev)->state = DEV_STARTED - 1;
 187         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_STARTED) {
 188                 rte_eth_dev_stop(PORT_ID(sdev));
 189                 sdev->state = DEV_STARTED - 1;
 190         }
 191 }
 192
 193 static int
 194 fs_dev_set_link_up(struct rte_eth_dev *dev)
 195 {
 196         struct sub_device *sdev;
 197         uint8_t i;
 198         int ret;
 199
 200         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 201                 DEBUG("Calling rte_eth_dev_set_link_up on sub_device %d", i);
 202                 ret = rte_eth_dev_set_link_up(PORT_ID(sdev));
 203                 if (ret) {
 204                         ERROR("Operation rte_eth_dev_set_link_up failed for sub_device %d"
 205                               " with error %d", i, ret);
 206                         return ret;
 207                 }
 208         }
 209         return 0;
 210 }
 211
 212 static int
 213 fs_dev_set_link_down(struct rte_eth_dev *dev)
 214 {
 215         struct sub_device *sdev;
 216         uint8_t i;
 217         int ret;
 218
 219         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 220                 DEBUG("Calling rte_eth_dev_set_link_down on sub_device %d", i);
 221                 ret = rte_eth_dev_set_link_down(PORT_ID(sdev));
 222                 if (ret) {
 223                         ERROR("Operation rte_eth_dev_set_link_down failed for sub_device %d"
 224                               " with error %d", i, ret);
 225                         return ret;
 226                 }
 227         }
 228         return 0;
 229 }
 230
 231 static void fs_dev_free_queues(struct rte_eth_dev *dev);
 232 static void
 233 fs_dev_close(struct rte_eth_dev *dev)
 234 {
 235         struct sub_device *sdev;
 236         uint8_t i;
 237
 238         failsafe_hotplug_alarm_cancel(dev);
 239         if (PRIV(dev)->state == DEV_STARTED)
 240                 dev->dev_ops->dev_stop(dev);
 241         PRIV(dev)->state = DEV_ACTIVE - 1;
 242         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 243                 DEBUG("Closing sub_device %d", i);
 244                 failsafe_eth_dev_unregister_callbacks(sdev);
 245                 rte_eth_dev_close(PORT_ID(sdev));
 246                 sdev->state = DEV_ACTIVE - 1;
 247         }
 248         fs_dev_free_queues(dev);
 249 }
 250
 251 static void
 252 fs_rx_queue_release(void *queue)
 253 {
 254         struct rte_eth_dev *dev;
 255         struct sub_device *sdev;
 256         uint8_t i;
 257         struct rxq *rxq;
 258
 259         if (queue == NULL)
 260                 return;
 261         rxq = queue;
 262         dev = rxq->priv->dev;
 263         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 264                 SUBOPS(sdev, rx_queue_release)
 265                         (ETH(sdev)->data->rx_queues[rxq->qid]);
 266         dev->data->rx_queues[rxq->qid] = NULL;
 267         rte_free(rxq);
 268 }
 269
 270 static int
 271 fs_rx_queue_setup(struct rte_eth_dev *dev,
 272                 uint16_t rx_queue_id,
 273                 uint16_t nb_rx_desc,
 274                 unsigned int socket_id,
 275                 const struct rte_eth_rxconf *rx_conf,
 276                 struct rte_mempool *mb_pool)
 277 {
 278         struct sub_device *sdev;
 279         struct rxq *rxq;
 280         uint8_t i;
 281         int ret;
 282
 283         rxq = dev->data->rx_queues[rx_queue_id];
 284         if (rxq != NULL) {
 285                 fs_rx_queue_release(rxq);
 286                 dev->data->rx_queues[rx_queue_id] = NULL;
 287         }
 288         rxq = rte_zmalloc(NULL,
 289                           sizeof(*rxq) +
 290                           sizeof(rte_atomic64_t) * PRIV(dev)->subs_tail,
 291                           RTE_CACHE_LINE_SIZE);
 292         if (rxq == NULL)
 293                 return -ENOMEM;
 294         FOREACH_SUBDEV(sdev, i, dev)
 295                 rte_atomic64_init(&rxq->refcnt[i]);
 296         rxq->qid = rx_queue_id;
 297         rxq->socket_id = socket_id;
 298         rxq->info.mp = mb_pool;
 299         rxq->info.conf = *rx_conf;
 300         rxq->info.nb_desc = nb_rx_desc;
 301         rxq->priv = PRIV(dev);
 302         dev->data->rx_queues[rx_queue_id] = rxq;
 303         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 304                 ret = rte_eth_rx_queue_setup(PORT_ID(sdev),
 305                                 rx_queue_id,
 306                                 nb_rx_desc, socket_id,
 307                                 rx_conf, mb_pool);
 308                 if (ret) {
 309                         ERROR("RX queue setup failed for sub_device %d", i);
 310                         goto free_rxq;
 311                 }
 312         }
 313         return 0;
 314 free_rxq:
 315         fs_rx_queue_release(rxq);
 316         return ret;
 317 }
 318
 319 static void
 320 fs_tx_queue_release(void *queue)
 321 {
 322         struct rte_eth_dev *dev;
 323         struct sub_device *sdev;
 324         uint8_t i;
 325         struct txq *txq;
 326
 327         if (queue == NULL)
 328                 return;
 329         txq = queue;
 330         dev = txq->priv->dev;
 331         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 332                 SUBOPS(sdev, tx_queue_release)
 333                         (ETH(sdev)->data->tx_queues[txq->qid]);
 334         dev->data->tx_queues[txq->qid] = NULL;
 335         rte_free(txq);
 336 }
 337
 338 static int
 339 fs_tx_queue_setup(struct rte_eth_dev *dev,
 340                 uint16_t tx_queue_id,
 341                 uint16_t nb_tx_desc,
 342                 unsigned int socket_id,
 343                 const struct rte_eth_txconf *tx_conf)
 344 {
 345         struct sub_device *sdev;
 346         struct txq *txq;
 347         uint8_t i;
 348         int ret;
 349
 350         txq = dev->data->tx_queues[tx_queue_id];
 351         if (txq != NULL) {
 352                 fs_tx_queue_release(txq);
 353                 dev->data->tx_queues[tx_queue_id] = NULL;
 354         }
 355         txq = rte_zmalloc("ethdev TX queue",
 356                           sizeof(*txq) +
 357                           sizeof(rte_atomic64_t) * PRIV(dev)->subs_tail,
 358                           RTE_CACHE_LINE_SIZE);
 359         if (txq == NULL)
 360                 return -ENOMEM;
 361         FOREACH_SUBDEV(sdev, i, dev)
 362                 rte_atomic64_init(&txq->refcnt[i]);
 363         txq->qid = tx_queue_id;
 364         txq->socket_id = socket_id;
 365         txq->info.conf = *tx_conf;
 366         txq->info.nb_desc = nb_tx_desc;
 367         txq->priv = PRIV(dev);
 368         dev->data->tx_queues[tx_queue_id] = txq;
 369         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 370                 ret = rte_eth_tx_queue_setup(PORT_ID(sdev),
 371                                 tx_queue_id,
 372                                 nb_tx_desc, socket_id,
 373                                 tx_conf);
 374                 if (ret) {
 375                         ERROR("TX queue setup failed for sub_device %d", i);
 376                         goto free_txq;
 377                 }
 378         }
 379         return 0;
 380 free_txq:
 381         fs_tx_queue_release(txq);
 382         return ret;
 383 }
 384
 385 static void
 386 fs_dev_free_queues(struct rte_eth_dev *dev)
 387 {
 388         uint16_t i;
 389
 390         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 391                 fs_rx_queue_release(dev->data->rx_queues[i]);
 392                 dev->data->rx_queues[i] = NULL;
 393         }
 394         dev->data->nb_rx_queues = 0;
 395         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 396                 fs_tx_queue_release(dev->data->tx_queues[i]);
 397                 dev->data->tx_queues[i] = NULL;
 398         }
 399         dev->data->nb_tx_queues = 0;
 400 }
 401
 402 static void
 403 fs_promiscuous_enable(struct rte_eth_dev *dev)
 404 {
 405         struct sub_device *sdev;
 406         uint8_t i;
 407
 408         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 409                 rte_eth_promiscuous_enable(PORT_ID(sdev));
 410 }
 411
 412 static void
 413 fs_promiscuous_disable(struct rte_eth_dev *dev)
 414 {
 415         struct sub_device *sdev;
 416         uint8_t i;
 417
 418         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 419                 rte_eth_promiscuous_disable(PORT_ID(sdev));
 420 }
 421
 422 static void
 423 fs_allmulticast_enable(struct rte_eth_dev *dev)
 424 {
 425         struct sub_device *sdev;
 426         uint8_t i;
 427
 428         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 429                 rte_eth_allmulticast_enable(PORT_ID(sdev));
 430 }
 431
 432 static void
 433 fs_allmulticast_disable(struct rte_eth_dev *dev)
 434 {
 435         struct sub_device *sdev;
 436         uint8_t i;
 437
 438         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 439                 rte_eth_allmulticast_disable(PORT_ID(sdev));
 440 }
 441
 442 static int
 443 fs_link_update(struct rte_eth_dev *dev,
 444                 int wait_to_complete)
 445 {
 446         struct sub_device *sdev;
 447         uint8_t i;
 448         int ret;
 449
 450         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 451                 DEBUG("Calling link_update on sub_device %d", i);
 452                 ret = (SUBOPS(sdev, link_update))(ETH(sdev), wait_to_complete);
 453                 if (ret && ret != -1) {
 454                         ERROR("Link update failed for sub_device %d with error %d",
 455                               i, ret);
 456                         return ret;
 457                 }
 458         }
 459         if (TX_SUBDEV(dev)) {
 460                 struct rte_eth_link *l1;
 461                 struct rte_eth_link *l2;
 462
 463                 l1 = &dev->data->dev_link;
 464                 l2 = &ETH(TX_SUBDEV(dev))->data->dev_link;
 465                 if (memcmp(l1, l2, sizeof(*l1))) {
 466                         *l1 = *l2;
 467                         return 0;
 468                 }
 469         }
 470         return -1;
 471 }
 472
 473 static int
 474 fs_stats_get(struct rte_eth_dev *dev,
 475              struct rte_eth_stats *stats)
 476 {
 477         struct sub_device *sdev;
 478         uint8_t i;
 479         int ret;
 480
 481         rte_memcpy(stats, &PRIV(dev)->stats_accumulator, sizeof(*stats));
 482         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 483                 struct rte_eth_stats *snapshot = &sdev->stats_snapshot.stats;
 484                 uint64_t *timestamp = &sdev->stats_snapshot.timestamp;
 485
 486                 ret = rte_eth_stats_get(PORT_ID(sdev), snapshot);
 487                 if (ret) {
 488                         ERROR("Operation rte_eth_stats_get failed for sub_device %d with error %d",
 489                                   i, ret);
 490                         *timestamp = 0;
 491                         return ret;
 492                 }
 493                 *timestamp = rte_rdtsc();
 494                 failsafe_stats_increment(stats, snapshot);
 495         }
 496         return 0;
 497 }
 498
 499 static void
 500 fs_stats_reset(struct rte_eth_dev *dev)
 501 {
 502         struct sub_device *sdev;
 503         uint8_t i;
 504
 505         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 506                 rte_eth_stats_reset(PORT_ID(sdev));
 507                 memset(&sdev->stats_snapshot, 0, sizeof(struct rte_eth_stats));
 508         }
 509         memset(&PRIV(dev)->stats_accumulator, 0, sizeof(struct rte_eth_stats));
 510 }
 511
 512 /**
 513  * Fail-safe dev_infos_get rules:
 514  *
 515  * No sub_device:
 516  *   Numerables:
 517  *      Use the maximum possible values for any field, so as not
 518  *      to impede any further configuration effort.
 519  *   Capabilities:
 520  *      Limits capabilities to those that are understood by the
 521  *      fail-safe PMD. This understanding stems from the fail-safe
 522  *      being capable of verifying that the related capability is
 523  *      expressed within the device configuration (struct rte_eth_conf).
 524  *
 525  * At least one probed sub_device:
 526  *   Numerables:
 527  *      Uses values from the active probed sub_device
 528  *      The rationale here is that if any sub_device is less capable
 529  *      (for example concerning the number of queues) than the active
 530  *      sub_device, then its subsequent configuration will fail.
 531  *      It is impossible to foresee this failure when the failing sub_device
 532  *      is supposed to be plugged-in later on, so the configuration process
 533  *      is the single point of failure and error reporting.
 534  *   Capabilities:
 535  *      Uses a logical AND of RX capabilities among
 536  *      all sub_devices and the default capabilities.
 537  *      Uses a logical AND of TX capabilities among
 538  *      the active probed sub_device and the default capabilities.
 539  *
 540  */
 541 static void
 542 fs_dev_infos_get(struct rte_eth_dev *dev,
 543                   struct rte_eth_dev_info *infos)
 544 {
 545         struct sub_device *sdev;
 546         uint8_t i;
 547
 548         sdev = TX_SUBDEV(dev);
 549         if (sdev == NULL) {
 550                 DEBUG("No probed device, using default infos");
 551                 rte_memcpy(&PRIV(dev)->infos, &default_infos,
 552                            sizeof(default_infos));
 553         } else {
 554                 uint32_t rx_offload_capa;
 555
 556                 rx_offload_capa = default_infos.rx_offload_capa;
 557                 FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_PROBED) {
 558                         rte_eth_dev_info_get(PORT_ID(sdev),
 559                                         &PRIV(dev)->infos);
 560                         rx_offload_capa &= PRIV(dev)->infos.rx_offload_capa;
 561                 }
 562                 sdev = TX_SUBDEV(dev);
 563                 rte_eth_dev_info_get(PORT_ID(sdev), &PRIV(dev)->infos);
 564                 PRIV(dev)->infos.rx_offload_capa = rx_offload_capa;
 565                 PRIV(dev)->infos.tx_offload_capa &=
 566                                         default_infos.tx_offload_capa;
 567                 PRIV(dev)->infos.flow_type_rss_offloads &=
 568                                         default_infos.flow_type_rss_offloads;
 569         }
 570         rte_memcpy(infos, &PRIV(dev)->infos, sizeof(*infos));
 571 }
 572
 573 static const uint32_t *
 574 fs_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 575 {
 576         struct sub_device *sdev;
 577         struct rte_eth_dev *edev;
 578
 579         sdev = TX_SUBDEV(dev);
 580         if (sdev == NULL)
 581                 return NULL;
 582         edev = ETH(sdev);
 583         /* ENOTSUP: counts as no supported ptypes */
 584         if (SUBOPS(sdev, dev_supported_ptypes_get) == NULL)
 585                 return NULL;
 586         /*
 587          * The API does not permit to do a clean AND of all ptypes,
 588          * It is also incomplete by design and we do not really care
 589          * to have a best possible value in this context.
 590          * We just return the ptypes of the device of highest
 591          * priority, usually the PREFERRED device.
 592          */
 593         return SUBOPS(sdev, dev_supported_ptypes_get)(edev);
 594 }
 595
 596 static int
 597 fs_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 598 {
 599         struct sub_device *sdev;
 600         uint8_t i;
 601         int ret;
 602
 603         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 604                 DEBUG("Calling rte_eth_dev_set_mtu on sub_device %d", i);
 605                 ret = rte_eth_dev_set_mtu(PORT_ID(sdev), mtu);
 606                 if (ret) {
 607                         ERROR("Operation rte_eth_dev_set_mtu failed for sub_device %d with error %d",
 608                               i, ret);
 609                         return ret;
 610                 }
 611         }
 612         return 0;
 613 }
 614
 615 static int
 616 fs_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 617 {
 618         struct sub_device *sdev;
 619         uint8_t i;
 620         int ret;
 621
 622         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 623                 DEBUG("Calling rte_eth_dev_vlan_filter on sub_device %d", i);
 624                 ret = rte_eth_dev_vlan_filter(PORT_ID(sdev), vlan_id, on);
 625                 if (ret) {
 626                         ERROR("Operation rte_eth_dev_vlan_filter failed for sub_device %d"
 627                               " with error %d", i, ret);
 628                         return ret;
 629                 }
 630         }
 631         return 0;
 632 }
 633
 634 static int
 635 fs_flow_ctrl_get(struct rte_eth_dev *dev,
 636                 struct rte_eth_fc_conf *fc_conf)
 637 {
 638         struct sub_device *sdev;
 639
 640         sdev = TX_SUBDEV(dev);
 641         if (sdev == NULL)
 642                 return 0;
 643         if (SUBOPS(sdev, flow_ctrl_get) == NULL)
 644                 return -ENOTSUP;
 645         return SUBOPS(sdev, flow_ctrl_get)(ETH(sdev), fc_conf);
 646 }
 647
 648 static int
 649 fs_flow_ctrl_set(struct rte_eth_dev *dev,
 650                 struct rte_eth_fc_conf *fc_conf)
 651 {
 652         struct sub_device *sdev;
 653         uint8_t i;
 654         int ret;
 655
 656         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 657                 DEBUG("Calling rte_eth_dev_flow_ctrl_set on sub_device %d", i);
 658                 ret = rte_eth_dev_flow_ctrl_set(PORT_ID(sdev), fc_conf);
 659                 if (ret) {
 660                         ERROR("Operation rte_eth_dev_flow_ctrl_set failed for sub_device %d"
 661                               " with error %d", i, ret);
 662                         return ret;
 663                 }
 664         }
 665         return 0;
 666 }
 667
 668 static void
 669 fs_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
 670 {
 671         struct sub_device *sdev;
 672         uint8_t i;
 673
 674         /* No check: already done within the rte_eth_dev_mac_addr_remove
 675          * call for the fail-safe device.
 676          */
 677         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 678                 rte_eth_dev_mac_addr_remove(PORT_ID(sdev),
 679                                 &dev->data->mac_addrs[index]);
 680         PRIV(dev)->mac_addr_pool[index] = 0;
 681 }
 682
 683 static int
 684 fs_mac_addr_add(struct rte_eth_dev *dev,
 685                 struct ether_addr *mac_addr,
 686                 uint32_t index,
 687                 uint32_t vmdq)
 688 {
 689         struct sub_device *sdev;
 690         int ret;
 691         uint8_t i;
 692
 693         RTE_ASSERT(index < FAILSAFE_MAX_ETHADDR);
 694         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 695                 ret = rte_eth_dev_mac_addr_add(PORT_ID(sdev), mac_addr, vmdq);
 696                 if (ret) {
 697                         ERROR("Operation rte_eth_dev_mac_addr_add failed for sub_device %"
 698                               PRIu8 " with error %d", i, ret);
 699                         return ret;
 700                 }
 701         }
 702         if (index >= PRIV(dev)->nb_mac_addr) {
 703                 DEBUG("Growing mac_addrs array");
 704                 PRIV(dev)->nb_mac_addr = index;
 705         }
 706         PRIV(dev)->mac_addr_pool[index] = vmdq;
 707         return 0;
 708 }
 709
 710 static void
 711 fs_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 712 {
 713         struct sub_device *sdev;
 714         uint8_t i;
 715
 716         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE)
 717                 rte_eth_dev_default_mac_addr_set(PORT_ID(sdev), mac_addr);
 718 }
 719
 720 static int
 721 fs_filter_ctrl(struct rte_eth_dev *dev,
 722                 enum rte_filter_type type,
 723                 enum rte_filter_op op,
 724                 void *arg)
 725 {
 726         struct sub_device *sdev;
 727         uint8_t i;
 728         int ret;
 729
 730         if (type == RTE_ETH_FILTER_GENERIC &&
 731             op == RTE_ETH_FILTER_GET) {
 732                 *(const void **)arg = &fs_flow_ops;
 733                 return 0;
 734         }
 735         FOREACH_SUBDEV_STATE(sdev, i, dev, DEV_ACTIVE) {
 736                 DEBUG("Calling rte_eth_dev_filter_ctrl on sub_device %d", i);
 737                 ret = rte_eth_dev_filter_ctrl(PORT_ID(sdev), type, op, arg);
 738                 if (ret) {
 739                         ERROR("Operation rte_eth_dev_filter_ctrl failed for sub_device %d"
 740                               " with error %d", i, ret);
 741                         return ret;
 742                 }
 743         }
 744         return 0;
 745 }
 746
 747 const struct eth_dev_ops failsafe_ops = {
 748         .dev_configure = fs_dev_configure,
 749         .dev_start = fs_dev_start,
 750         .dev_stop = fs_dev_stop,
 751         .dev_set_link_down = fs_dev_set_link_down,
 752         .dev_set_link_up = fs_dev_set_link_up,
 753         .dev_close = fs_dev_close,
 754         .promiscuous_enable = fs_promiscuous_enable,
 755         .promiscuous_disable = fs_promiscuous_disable,
 756         .allmulticast_enable = fs_allmulticast_enable,
 757         .allmulticast_disable = fs_allmulticast_disable,
 758         .link_update = fs_link_update,
 759         .stats_get = fs_stats_get,
 760         .stats_reset = fs_stats_reset,
 761         .dev_infos_get = fs_dev_infos_get,
 762         .dev_supported_ptypes_get = fs_dev_supported_ptypes_get,
 763         .mtu_set = fs_mtu_set,
 764         .vlan_filter_set = fs_vlan_filter_set,
 765         .rx_queue_setup = fs_rx_queue_setup,
 766         .tx_queue_setup = fs_tx_queue_setup,
 767         .rx_queue_release = fs_rx_queue_release,
 768         .tx_queue_release = fs_tx_queue_release,
 769         .flow_ctrl_get = fs_flow_ctrl_get,
 770         .flow_ctrl_set = fs_flow_ctrl_set,
 771         .mac_addr_remove = fs_mac_addr_remove,
 772         .mac_addr_add = fs_mac_addr_add,
 773         .mac_addr_set = fs_mac_addr_set,
 774         .filter_ctrl = fs_filter_ctrl,
 775 };