drivers/net/sfc/sfc_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  * Copyright (c) 2016-2017 Solarflare Communications Inc.
   5  * All rights reserved.
   6  *
   7  * This software was jointly developed between OKTET Labs (under contract
   8  * for Solarflare) and Solarflare Communications, Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright notice,
  16  *    this list of conditions and the following disclaimer in the documentation
  17  *    and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  29  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <rte_dev.h>
  33 #include <rte_ethdev.h>
  34 #include <rte_ethdev_pci.h>
  35 #include <rte_pci.h>
  36 #include <rte_bus_pci.h>
  37 #include <rte_errno.h>
  38
  39 #include "efx.h"
  40
  41 #include "sfc.h"
  42 #include "sfc_debug.h"
  43 #include "sfc_log.h"
  44 #include "sfc_kvargs.h"
  45 #include "sfc_ev.h"
  46 #include "sfc_rx.h"
  47 #include "sfc_tx.h"
  48 #include "sfc_flow.h"
  49 #include "sfc_dp.h"
  50 #include "sfc_dp_rx.h"
  51
  52 static struct sfc_dp_list sfc_dp_head =
  53         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  54
  55 static int
  56 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  57 {
  58         struct sfc_adapter *sa = dev->data->dev_private;
  59         efx_nic_fw_info_t enfi;
  60         int ret;
  61         int rc;
  62
  63         /*
  64          * Return value of the callback is likely supposed to be
  65          * equal to or greater than 0, nevertheless, if an error
  66          * occurs, it will be desirable to pass it to the caller
  67          */
  68         if ((fw_version == NULL) || (fw_size == 0))
  69                 return -EINVAL;
  70
  71         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  72         if (rc != 0)
  73                 return -rc;
  74
  75         ret = snprintf(fw_version, fw_size,
  76                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  77                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  78                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  79         if (ret < 0)
  80                 return ret;
  81
  82         if (enfi.enfi_dpcpu_fw_ids_valid) {
  83                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  84                 int ret_extra;
  85
  86                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  87                                      fw_size - dpcpu_fw_ids_offset,
  88                                      " rx%" PRIx16 " tx%" PRIx16,
  89                                      enfi.enfi_rx_dpcpu_fw_id,
  90                                      enfi.enfi_tx_dpcpu_fw_id);
  91                 if (ret_extra < 0)
  92                         return ret_extra;
  93
  94                 ret += ret_extra;
  95         }
  96
  97         if (fw_size < (size_t)(++ret))
  98                 return ret;
  99         else
 100                 return 0;
 101 }
 102
 103 static void
 104 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 105 {
 106         struct sfc_adapter *sa = dev->data->dev_private;
 107         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 108
 109         sfc_log_init(sa, "entry");
 110
 111         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 112         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 113
 114         /* Autonegotiation may be disabled */
 115         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 116         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 117                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 118         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 119                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 120         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 121                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 122
 123         dev_info->max_rx_queues = sa->rxq_max;
 124         dev_info->max_tx_queues = sa->txq_max;
 125
 126         /* By default packets are dropped if no descriptors are available */
 127         dev_info->default_rxconf.rx_drop_en = 1;
 128
 129         dev_info->rx_offload_capa =
 130                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 131                 DEV_RX_OFFLOAD_UDP_CKSUM |
 132                 DEV_RX_OFFLOAD_TCP_CKSUM;
 133
 134         if ((encp->enc_tunnel_encapsulations_supported != 0) &&
 135             (sa->dp_rx->features & SFC_DP_RX_FEAT_TUNNELS))
 136                 dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM;
 137
 138         dev_info->tx_offload_capa =
 139                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 140                 DEV_TX_OFFLOAD_UDP_CKSUM |
 141                 DEV_TX_OFFLOAD_TCP_CKSUM;
 142
 143         if (encp->enc_tunnel_encapsulations_supported != 0)
 144                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
 145
 146         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 147         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 148             !encp->enc_hw_tx_insert_vlan_enabled)
 149                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 150         else
 151                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 152
 153         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 154                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 155
 156         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
 157                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
 158
 159         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
 160                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
 161
 162 #if EFSYS_OPT_RX_SCALE
 163         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 164                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 165                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 166                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 167         }
 168 #endif
 169
 170         if (sa->tso)
 171                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 172
 173         /* Initialize to hardware limits */
 174         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 175         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 176         /* The RXQ hardware requires that the descriptor count is a power
 177          * of 2, but rx_desc_lim cannot properly describe that constraint.
 178          */
 179         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 180
 181         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 182         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 183         /*
 184          * The TXQ hardware requires that the descriptor count is a power
 185          * of 2, but tx_desc_lim cannot properly describe that constraint
 186          */
 187         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 188
 189         if (sa->dp_rx->get_dev_info != NULL)
 190                 sa->dp_rx->get_dev_info(dev_info);
 191 }
 192
 193 static const uint32_t *
 194 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 195 {
 196         struct sfc_adapter *sa = dev->data->dev_private;
 197         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 198         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 199
 200         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 201 }
 202
 203 static int
 204 sfc_dev_configure(struct rte_eth_dev *dev)
 205 {
 206         struct rte_eth_dev_data *dev_data = dev->data;
 207         struct sfc_adapter *sa = dev_data->dev_private;
 208         int rc;
 209
 210         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 211                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 212
 213         sfc_adapter_lock(sa);
 214         switch (sa->state) {
 215         case SFC_ADAPTER_CONFIGURED:
 216                 /* FALLTHROUGH */
 217         case SFC_ADAPTER_INITIALIZED:
 218                 rc = sfc_configure(sa);
 219                 break;
 220         default:
 221                 sfc_err(sa, "unexpected adapter state %u to configure",
 222                         sa->state);
 223                 rc = EINVAL;
 224                 break;
 225         }
 226         sfc_adapter_unlock(sa);
 227
 228         sfc_log_init(sa, "done %d", rc);
 229         SFC_ASSERT(rc >= 0);
 230         return -rc;
 231 }
 232
 233 static int
 234 sfc_dev_start(struct rte_eth_dev *dev)
 235 {
 236         struct sfc_adapter *sa = dev->data->dev_private;
 237         int rc;
 238
 239         sfc_log_init(sa, "entry");
 240
 241         sfc_adapter_lock(sa);
 242         rc = sfc_start(sa);
 243         sfc_adapter_unlock(sa);
 244
 245         sfc_log_init(sa, "done %d", rc);
 246         SFC_ASSERT(rc >= 0);
 247         return -rc;
 248 }
 249
 250 static int
 251 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 252 {
 253         struct sfc_adapter *sa = dev->data->dev_private;
 254         struct rte_eth_link *dev_link = &dev->data->dev_link;
 255         struct rte_eth_link old_link;
 256         struct rte_eth_link current_link;
 257
 258         sfc_log_init(sa, "entry");
 259
 260 retry:
 261         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 262         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 263
 264         if (sa->state != SFC_ADAPTER_STARTED) {
 265                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 266                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 267                                          *(uint64_t *)&old_link,
 268                                          *(uint64_t *)&current_link))
 269                         goto retry;
 270         } else if (wait_to_complete) {
 271                 efx_link_mode_t link_mode;
 272
 273                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 274                         link_mode = EFX_LINK_UNKNOWN;
 275                 sfc_port_link_mode_to_info(link_mode, &current_link);
 276
 277                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 278                                          *(uint64_t *)&old_link,
 279                                          *(uint64_t *)&current_link))
 280                         goto retry;
 281         } else {
 282                 sfc_ev_mgmt_qpoll(sa);
 283                 *(int64_t *)&current_link =
 284                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 285         }
 286
 287         if (old_link.link_status != current_link.link_status)
 288                 sfc_info(sa, "Link status is %s",
 289                          current_link.link_status ? "UP" : "DOWN");
 290
 291         return old_link.link_status == current_link.link_status ? 0 : -1;
 292 }
 293
 294 static void
 295 sfc_dev_stop(struct rte_eth_dev *dev)
 296 {
 297         struct sfc_adapter *sa = dev->data->dev_private;
 298
 299         sfc_log_init(sa, "entry");
 300
 301         sfc_adapter_lock(sa);
 302         sfc_stop(sa);
 303         sfc_adapter_unlock(sa);
 304
 305         sfc_log_init(sa, "done");
 306 }
 307
 308 static int
 309 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 310 {
 311         struct sfc_adapter *sa = dev->data->dev_private;
 312         int rc;
 313
 314         sfc_log_init(sa, "entry");
 315
 316         sfc_adapter_lock(sa);
 317         rc = sfc_start(sa);
 318         sfc_adapter_unlock(sa);
 319
 320         SFC_ASSERT(rc >= 0);
 321         return -rc;
 322 }
 323
 324 static int
 325 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 326 {
 327         struct sfc_adapter *sa = dev->data->dev_private;
 328
 329         sfc_log_init(sa, "entry");
 330
 331         sfc_adapter_lock(sa);
 332         sfc_stop(sa);
 333         sfc_adapter_unlock(sa);
 334
 335         return 0;
 336 }
 337
 338 static void
 339 sfc_dev_close(struct rte_eth_dev *dev)
 340 {
 341         struct sfc_adapter *sa = dev->data->dev_private;
 342
 343         sfc_log_init(sa, "entry");
 344
 345         sfc_adapter_lock(sa);
 346         switch (sa->state) {
 347         case SFC_ADAPTER_STARTED:
 348                 sfc_stop(sa);
 349                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 350                 /* FALLTHROUGH */
 351         case SFC_ADAPTER_CONFIGURED:
 352                 sfc_close(sa);
 353                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 354                 /* FALLTHROUGH */
 355         case SFC_ADAPTER_INITIALIZED:
 356                 break;
 357         default:
 358                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 359                 break;
 360         }
 361         sfc_adapter_unlock(sa);
 362
 363         sfc_log_init(sa, "done");
 364 }
 365
 366 static void
 367 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 368                    boolean_t enabled)
 369 {
 370         struct sfc_port *port;
 371         boolean_t *toggle;
 372         struct sfc_adapter *sa = dev->data->dev_private;
 373         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 374         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 375
 376         sfc_adapter_lock(sa);
 377
 378         port = &sa->port;
 379         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 380
 381         if (*toggle != enabled) {
 382                 *toggle = enabled;
 383
 384                 if (port->isolated) {
 385                         sfc_warn(sa, "isolated mode is active on the port");
 386                         sfc_warn(sa, "the change is to be applied on the next "
 387                                      "start provided that isolated mode is "
 388                                      "disabled prior the next start");
 389                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 390                            (sfc_set_rx_mode(sa) != 0)) {
 391                         *toggle = !(enabled);
 392                         sfc_warn(sa, "Failed to %s %s mode",
 393                                  ((enabled) ? "enable" : "disable"), desc);
 394                 }
 395         }
 396
 397         sfc_adapter_unlock(sa);
 398 }
 399
 400 static void
 401 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 402 {
 403         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 404 }
 405
 406 static void
 407 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 408 {
 409         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 410 }
 411
 412 static void
 413 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 414 {
 415         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 416 }
 417
 418 static void
 419 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 420 {
 421         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 422 }
 423
 424 static int
 425 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 426                    uint16_t nb_rx_desc, unsigned int socket_id,
 427                    const struct rte_eth_rxconf *rx_conf,
 428                    struct rte_mempool *mb_pool)
 429 {
 430         struct sfc_adapter *sa = dev->data->dev_private;
 431         int rc;
 432
 433         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 434                      rx_queue_id, nb_rx_desc, socket_id);
 435
 436         sfc_adapter_lock(sa);
 437
 438         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 439                           rx_conf, mb_pool);
 440         if (rc != 0)
 441                 goto fail_rx_qinit;
 442
 443         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 444
 445         sfc_adapter_unlock(sa);
 446
 447         return 0;
 448
 449 fail_rx_qinit:
 450         sfc_adapter_unlock(sa);
 451         SFC_ASSERT(rc > 0);
 452         return -rc;
 453 }
 454
 455 static void
 456 sfc_rx_queue_release(void *queue)
 457 {
 458         struct sfc_dp_rxq *dp_rxq = queue;
 459         struct sfc_rxq *rxq;
 460         struct sfc_adapter *sa;
 461         unsigned int sw_index;
 462
 463         if (dp_rxq == NULL)
 464                 return;
 465
 466         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 467         sa = rxq->evq->sa;
 468         sfc_adapter_lock(sa);
 469
 470         sw_index = sfc_rxq_sw_index(rxq);
 471
 472         sfc_log_init(sa, "RxQ=%u", sw_index);
 473
 474         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 475
 476         sfc_rx_qfini(sa, sw_index);
 477
 478         sfc_adapter_unlock(sa);
 479 }
 480
 481 static int
 482 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 483                    uint16_t nb_tx_desc, unsigned int socket_id,
 484                    const struct rte_eth_txconf *tx_conf)
 485 {
 486         struct sfc_adapter *sa = dev->data->dev_private;
 487         int rc;
 488
 489         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 490                      tx_queue_id, nb_tx_desc, socket_id);
 491
 492         sfc_adapter_lock(sa);
 493
 494         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 495         if (rc != 0)
 496                 goto fail_tx_qinit;
 497
 498         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 499
 500         sfc_adapter_unlock(sa);
 501         return 0;
 502
 503 fail_tx_qinit:
 504         sfc_adapter_unlock(sa);
 505         SFC_ASSERT(rc > 0);
 506         return -rc;
 507 }
 508
 509 static void
 510 sfc_tx_queue_release(void *queue)
 511 {
 512         struct sfc_dp_txq *dp_txq = queue;
 513         struct sfc_txq *txq;
 514         unsigned int sw_index;
 515         struct sfc_adapter *sa;
 516
 517         if (dp_txq == NULL)
 518                 return;
 519
 520         txq = sfc_txq_by_dp_txq(dp_txq);
 521         sw_index = sfc_txq_sw_index(txq);
 522
 523         SFC_ASSERT(txq->evq != NULL);
 524         sa = txq->evq->sa;
 525
 526         sfc_log_init(sa, "TxQ = %u", sw_index);
 527
 528         sfc_adapter_lock(sa);
 529
 530         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 531         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 532
 533         sfc_tx_qfini(sa, sw_index);
 534
 535         sfc_adapter_unlock(sa);
 536 }
 537
 538 static int
 539 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 540 {
 541         struct sfc_adapter *sa = dev->data->dev_private;
 542         struct sfc_port *port = &sa->port;
 543         uint64_t *mac_stats;
 544         int ret;
 545
 546         rte_spinlock_lock(&port->mac_stats_lock);
 547
 548         ret = sfc_port_update_mac_stats(sa);
 549         if (ret != 0)
 550                 goto unlock;
 551
 552         mac_stats = port->mac_stats_buf;
 553
 554         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 555                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 556                 stats->ipackets =
 557                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 558                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 559                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 560                 stats->opackets =
 561                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 562                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 563                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 564                 stats->ibytes =
 565                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 566                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 567                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 568                 stats->obytes =
 569                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 570                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 571                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 572                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 573                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 574                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 575         } else {
 576                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 577                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 578                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 579                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 580                 /*
 581                  * Take into account stats which are whenever supported
 582                  * on EF10. If some stat is not supported by current
 583                  * firmware variant or HW revision, it is guaranteed
 584                  * to be zero in mac_stats.
 585                  */
 586                 stats->imissed =
 587                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 588                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 589                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 590                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 591                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 592                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 593                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 594                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 595                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 596                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 597                 stats->ierrors =
 598                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 599                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 600                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 601                 /* no oerrors counters supported on EF10 */
 602         }
 603
 604 unlock:
 605         rte_spinlock_unlock(&port->mac_stats_lock);
 606         SFC_ASSERT(ret >= 0);
 607         return -ret;
 608 }
 609
 610 static void
 611 sfc_stats_reset(struct rte_eth_dev *dev)
 612 {
 613         struct sfc_adapter *sa = dev->data->dev_private;
 614         struct sfc_port *port = &sa->port;
 615         int rc;
 616
 617         if (sa->state != SFC_ADAPTER_STARTED) {
 618                 /*
 619                  * The operation cannot be done if port is not started; it
 620                  * will be scheduled to be done during the next port start
 621                  */
 622                 port->mac_stats_reset_pending = B_TRUE;
 623                 return;
 624         }
 625
 626         rc = sfc_port_reset_mac_stats(sa);
 627         if (rc != 0)
 628                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 629 }
 630
 631 static int
 632 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 633                unsigned int xstats_count)
 634 {
 635         struct sfc_adapter *sa = dev->data->dev_private;
 636         struct sfc_port *port = &sa->port;
 637         uint64_t *mac_stats;
 638         int rc;
 639         unsigned int i;
 640         int nstats = 0;
 641
 642         rte_spinlock_lock(&port->mac_stats_lock);
 643
 644         rc = sfc_port_update_mac_stats(sa);
 645         if (rc != 0) {
 646                 SFC_ASSERT(rc > 0);
 647                 nstats = -rc;
 648                 goto unlock;
 649         }
 650
 651         mac_stats = port->mac_stats_buf;
 652
 653         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 654                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 655                         if (xstats != NULL && nstats < (int)xstats_count) {
 656                                 xstats[nstats].id = nstats;
 657                                 xstats[nstats].value = mac_stats[i];
 658                         }
 659                         nstats++;
 660                 }
 661         }
 662
 663 unlock:
 664         rte_spinlock_unlock(&port->mac_stats_lock);
 665
 666         return nstats;
 667 }
 668
 669 static int
 670 sfc_xstats_get_names(struct rte_eth_dev *dev,
 671                      struct rte_eth_xstat_name *xstats_names,
 672                      unsigned int xstats_count)
 673 {
 674         struct sfc_adapter *sa = dev->data->dev_private;
 675         struct sfc_port *port = &sa->port;
 676         unsigned int i;
 677         unsigned int nstats = 0;
 678
 679         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 680                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 681                         if (xstats_names != NULL && nstats < xstats_count)
 682                                 strncpy(xstats_names[nstats].name,
 683                                         efx_mac_stat_name(sa->nic, i),
 684                                         sizeof(xstats_names[0].name));
 685                         nstats++;
 686                 }
 687         }
 688
 689         return nstats;
 690 }
 691
 692 static int
 693 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 694                      uint64_t *values, unsigned int n)
 695 {
 696         struct sfc_adapter *sa = dev->data->dev_private;
 697         struct sfc_port *port = &sa->port;
 698         uint64_t *mac_stats;
 699         unsigned int nb_supported = 0;
 700         unsigned int nb_written = 0;
 701         unsigned int i;
 702         int ret;
 703         int rc;
 704
 705         if (unlikely(values == NULL) ||
 706             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 707                 return port->mac_stats_nb_supported;
 708
 709         rte_spinlock_lock(&port->mac_stats_lock);
 710
 711         rc = sfc_port_update_mac_stats(sa);
 712         if (rc != 0) {
 713                 SFC_ASSERT(rc > 0);
 714                 ret = -rc;
 715                 goto unlock;
 716         }
 717
 718         mac_stats = port->mac_stats_buf;
 719
 720         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 721                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 722                         continue;
 723
 724                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 725                         values[nb_written++] = mac_stats[i];
 726
 727                 ++nb_supported;
 728         }
 729
 730         ret = nb_written;
 731
 732 unlock:
 733         rte_spinlock_unlock(&port->mac_stats_lock);
 734
 735         return ret;
 736 }
 737
 738 static int
 739 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 740                            struct rte_eth_xstat_name *xstats_names,
 741                            const uint64_t *ids, unsigned int size)
 742 {
 743         struct sfc_adapter *sa = dev->data->dev_private;
 744         struct sfc_port *port = &sa->port;
 745         unsigned int nb_supported = 0;
 746         unsigned int nb_written = 0;
 747         unsigned int i;
 748
 749         if (unlikely(xstats_names == NULL) ||
 750             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 751                 return port->mac_stats_nb_supported;
 752
 753         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 754                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 755                         continue;
 756
 757                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 758                         char *name = xstats_names[nb_written++].name;
 759
 760                         strncpy(name, efx_mac_stat_name(sa->nic, i),
 761                                 sizeof(xstats_names[0].name));
 762                         name[sizeof(xstats_names[0].name) - 1] = '\0';
 763                 }
 764
 765                 ++nb_supported;
 766         }
 767
 768         return nb_written;
 769 }
 770
 771 static int
 772 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 773 {
 774         struct sfc_adapter *sa = dev->data->dev_private;
 775         unsigned int wanted_fc, link_fc;
 776
 777         memset(fc_conf, 0, sizeof(*fc_conf));
 778
 779         sfc_adapter_lock(sa);
 780
 781         if (sa->state == SFC_ADAPTER_STARTED)
 782                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 783         else
 784                 link_fc = sa->port.flow_ctrl;
 785
 786         switch (link_fc) {
 787         case 0:
 788                 fc_conf->mode = RTE_FC_NONE;
 789                 break;
 790         case EFX_FCNTL_RESPOND:
 791                 fc_conf->mode = RTE_FC_RX_PAUSE;
 792                 break;
 793         case EFX_FCNTL_GENERATE:
 794                 fc_conf->mode = RTE_FC_TX_PAUSE;
 795                 break;
 796         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 797                 fc_conf->mode = RTE_FC_FULL;
 798                 break;
 799         default:
 800                 sfc_err(sa, "%s: unexpected flow control value %#x",
 801                         __func__, link_fc);
 802         }
 803
 804         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 805
 806         sfc_adapter_unlock(sa);
 807
 808         return 0;
 809 }
 810
 811 static int
 812 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 813 {
 814         struct sfc_adapter *sa = dev->data->dev_private;
 815         struct sfc_port *port = &sa->port;
 816         unsigned int fcntl;
 817         int rc;
 818
 819         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 820             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 821             fc_conf->mac_ctrl_frame_fwd != 0) {
 822                 sfc_err(sa, "unsupported flow control settings specified");
 823                 rc = EINVAL;
 824                 goto fail_inval;
 825         }
 826
 827         switch (fc_conf->mode) {
 828         case RTE_FC_NONE:
 829                 fcntl = 0;
 830                 break;
 831         case RTE_FC_RX_PAUSE:
 832                 fcntl = EFX_FCNTL_RESPOND;
 833                 break;
 834         case RTE_FC_TX_PAUSE:
 835                 fcntl = EFX_FCNTL_GENERATE;
 836                 break;
 837         case RTE_FC_FULL:
 838                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 839                 break;
 840         default:
 841                 rc = EINVAL;
 842                 goto fail_inval;
 843         }
 844
 845         sfc_adapter_lock(sa);
 846
 847         if (sa->state == SFC_ADAPTER_STARTED) {
 848                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 849                 if (rc != 0)
 850                         goto fail_mac_fcntl_set;
 851         }
 852
 853         port->flow_ctrl = fcntl;
 854         port->flow_ctrl_autoneg = fc_conf->autoneg;
 855
 856         sfc_adapter_unlock(sa);
 857
 858         return 0;
 859
 860 fail_mac_fcntl_set:
 861         sfc_adapter_unlock(sa);
 862 fail_inval:
 863         SFC_ASSERT(rc > 0);
 864         return -rc;
 865 }
 866
 867 static int
 868 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 869 {
 870         struct sfc_adapter *sa = dev->data->dev_private;
 871         size_t pdu = EFX_MAC_PDU(mtu);
 872         size_t old_pdu;
 873         int rc;
 874
 875         sfc_log_init(sa, "mtu=%u", mtu);
 876
 877         rc = EINVAL;
 878         if (pdu < EFX_MAC_PDU_MIN) {
 879                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 880                         (unsigned int)mtu, (unsigned int)pdu,
 881                         EFX_MAC_PDU_MIN);
 882                 goto fail_inval;
 883         }
 884         if (pdu > EFX_MAC_PDU_MAX) {
 885                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 886                         (unsigned int)mtu, (unsigned int)pdu,
 887                         EFX_MAC_PDU_MAX);
 888                 goto fail_inval;
 889         }
 890
 891         sfc_adapter_lock(sa);
 892
 893         if (pdu != sa->port.pdu) {
 894                 if (sa->state == SFC_ADAPTER_STARTED) {
 895                         sfc_stop(sa);
 896
 897                         old_pdu = sa->port.pdu;
 898                         sa->port.pdu = pdu;
 899                         rc = sfc_start(sa);
 900                         if (rc != 0)
 901                                 goto fail_start;
 902                 } else {
 903                         sa->port.pdu = pdu;
 904                 }
 905         }
 906
 907         /*
 908          * The driver does not use it, but other PMDs update jumbo_frame
 909          * flag and max_rx_pkt_len when MTU is set.
 910          */
 911         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 912         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 913
 914         sfc_adapter_unlock(sa);
 915
 916         sfc_log_init(sa, "done");
 917         return 0;
 918
 919 fail_start:
 920         sa->port.pdu = old_pdu;
 921         if (sfc_start(sa) != 0)
 922                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 923                         "PDU max size - port is stopped",
 924                         (unsigned int)pdu, (unsigned int)old_pdu);
 925         sfc_adapter_unlock(sa);
 926
 927 fail_inval:
 928         sfc_log_init(sa, "failed %d", rc);
 929         SFC_ASSERT(rc > 0);
 930         return -rc;
 931 }
 932 static void
 933 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 934 {
 935         struct sfc_adapter *sa = dev->data->dev_private;
 936         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 937         struct sfc_port *port = &sa->port;
 938         int rc;
 939
 940         sfc_adapter_lock(sa);
 941
 942         /*
 943          * Copy the address to the device private data so that
 944          * it could be recalled in the case of adapter restart.
 945          */
 946         ether_addr_copy(mac_addr, &port->default_mac_addr);
 947
 948         if (port->isolated) {
 949                 sfc_err(sa, "isolated mode is active on the port");
 950                 sfc_err(sa, "will not set MAC address");
 951                 goto unlock;
 952         }
 953
 954         if (sa->state != SFC_ADAPTER_STARTED) {
 955                 sfc_info(sa, "the port is not started");
 956                 sfc_info(sa, "the new MAC address will be set on port start");
 957
 958                 goto unlock;
 959         }
 960
 961         if (encp->enc_allow_set_mac_with_installed_filters) {
 962                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 963                 if (rc != 0) {
 964                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 965                         goto unlock;
 966                 }
 967
 968                 /*
 969                  * Changing the MAC address by means of MCDI request
 970                  * has no effect on received traffic, therefore
 971                  * we also need to update unicast filters
 972                  */
 973                 rc = sfc_set_rx_mode(sa);
 974                 if (rc != 0)
 975                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 976         } else {
 977                 sfc_warn(sa, "cannot set MAC address with filters installed");
 978                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 979                 sfc_warn(sa, "(some traffic may be dropped)");
 980
 981                 /*
 982                  * Since setting MAC address with filters installed is not
 983                  * allowed on the adapter, the new MAC address will be set
 984                  * by means of adapter restart. sfc_start() shall retrieve
 985                  * the new address from the device private data and set it.
 986                  */
 987                 sfc_stop(sa);
 988                 rc = sfc_start(sa);
 989                 if (rc != 0)
 990                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 991         }
 992
 993 unlock:
 994         /*
 995          * In the case of failure sa->port->default_mac_addr does not
 996          * need rollback since no error code is returned, and the upper
 997          * API will anyway update the external MAC address storage.
 998          * To be consistent with that new value it is better to keep
 999          * the device private value the same.
1000          */
1001         sfc_adapter_unlock(sa);
1002 }
1003
1004
1005 static int
1006 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
1007                      uint32_t nb_mc_addr)
1008 {
1009         struct sfc_adapter *sa = dev->data->dev_private;
1010         struct sfc_port *port = &sa->port;
1011         uint8_t *mc_addrs = port->mcast_addrs;
1012         int rc;
1013         unsigned int i;
1014
1015         if (port->isolated) {
1016                 sfc_err(sa, "isolated mode is active on the port");
1017                 sfc_err(sa, "will not set multicast address list");
1018                 return -ENOTSUP;
1019         }
1020
1021         if (mc_addrs == NULL)
1022                 return -ENOBUFS;
1023
1024         if (nb_mc_addr > port->max_mcast_addrs) {
1025                 sfc_err(sa, "too many multicast addresses: %u > %u",
1026                          nb_mc_addr, port->max_mcast_addrs);
1027                 return -EINVAL;
1028         }
1029
1030         for (i = 0; i < nb_mc_addr; ++i) {
1031                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1032                                  EFX_MAC_ADDR_LEN);
1033                 mc_addrs += EFX_MAC_ADDR_LEN;
1034         }
1035
1036         port->nb_mcast_addrs = nb_mc_addr;
1037
1038         if (sa->state != SFC_ADAPTER_STARTED)
1039                 return 0;
1040
1041         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1042                                         port->nb_mcast_addrs);
1043         if (rc != 0)
1044                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1045
1046         SFC_ASSERT(rc > 0);
1047         return -rc;
1048 }
1049
1050 /*
1051  * The function is used by the secondary process as well. It must not
1052  * use any process-local pointers from the adapter data.
1053  */
1054 static void
1055 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1056                       struct rte_eth_rxq_info *qinfo)
1057 {
1058         struct sfc_adapter *sa = dev->data->dev_private;
1059         struct sfc_rxq_info *rxq_info;
1060         struct sfc_rxq *rxq;
1061
1062         sfc_adapter_lock(sa);
1063
1064         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1065
1066         rxq_info = &sa->rxq_info[rx_queue_id];
1067         rxq = rxq_info->rxq;
1068         SFC_ASSERT(rxq != NULL);
1069
1070         qinfo->mp = rxq->refill_mb_pool;
1071         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1072         qinfo->conf.rx_drop_en = 1;
1073         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1074         qinfo->scattered_rx =
1075                 ((rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) != 0);
1076         qinfo->nb_desc = rxq_info->entries;
1077
1078         sfc_adapter_unlock(sa);
1079 }
1080
1081 /*
1082  * The function is used by the secondary process as well. It must not
1083  * use any process-local pointers from the adapter data.
1084  */
1085 static void
1086 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1087                       struct rte_eth_txq_info *qinfo)
1088 {
1089         struct sfc_adapter *sa = dev->data->dev_private;
1090         struct sfc_txq_info *txq_info;
1091
1092         sfc_adapter_lock(sa);
1093
1094         SFC_ASSERT(tx_queue_id < sa->txq_count);
1095
1096         txq_info = &sa->txq_info[tx_queue_id];
1097         SFC_ASSERT(txq_info->txq != NULL);
1098
1099         memset(qinfo, 0, sizeof(*qinfo));
1100
1101         qinfo->conf.txq_flags = txq_info->txq->flags;
1102         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1103         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1104         qinfo->nb_desc = txq_info->entries;
1105
1106         sfc_adapter_unlock(sa);
1107 }
1108
1109 static uint32_t
1110 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1111 {
1112         struct sfc_adapter *sa = dev->data->dev_private;
1113
1114         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1115
1116         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1117 }
1118
1119 static int
1120 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1121 {
1122         struct sfc_dp_rxq *dp_rxq = queue;
1123
1124         return sfc_rx_qdesc_done(dp_rxq, offset);
1125 }
1126
1127 static int
1128 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1129 {
1130         struct sfc_dp_rxq *dp_rxq = queue;
1131         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1132
1133         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1134 }
1135
1136 static int
1137 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1138 {
1139         struct sfc_dp_txq *dp_txq = queue;
1140         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1141
1142         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1143 }
1144
1145 static int
1146 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1147 {
1148         struct sfc_adapter *sa = dev->data->dev_private;
1149         int rc;
1150
1151         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1152
1153         sfc_adapter_lock(sa);
1154
1155         rc = EINVAL;
1156         if (sa->state != SFC_ADAPTER_STARTED)
1157                 goto fail_not_started;
1158
1159         rc = sfc_rx_qstart(sa, rx_queue_id);
1160         if (rc != 0)
1161                 goto fail_rx_qstart;
1162
1163         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1164
1165         sfc_adapter_unlock(sa);
1166
1167         return 0;
1168
1169 fail_rx_qstart:
1170 fail_not_started:
1171         sfc_adapter_unlock(sa);
1172         SFC_ASSERT(rc > 0);
1173         return -rc;
1174 }
1175
1176 static int
1177 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1178 {
1179         struct sfc_adapter *sa = dev->data->dev_private;
1180
1181         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1182
1183         sfc_adapter_lock(sa);
1184         sfc_rx_qstop(sa, rx_queue_id);
1185
1186         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1187
1188         sfc_adapter_unlock(sa);
1189
1190         return 0;
1191 }
1192
1193 static int
1194 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1195 {
1196         struct sfc_adapter *sa = dev->data->dev_private;
1197         int rc;
1198
1199         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1200
1201         sfc_adapter_lock(sa);
1202
1203         rc = EINVAL;
1204         if (sa->state != SFC_ADAPTER_STARTED)
1205                 goto fail_not_started;
1206
1207         rc = sfc_tx_qstart(sa, tx_queue_id);
1208         if (rc != 0)
1209                 goto fail_tx_qstart;
1210
1211         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1212
1213         sfc_adapter_unlock(sa);
1214         return 0;
1215
1216 fail_tx_qstart:
1217
1218 fail_not_started:
1219         sfc_adapter_unlock(sa);
1220         SFC_ASSERT(rc > 0);
1221         return -rc;
1222 }
1223
1224 static int
1225 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1226 {
1227         struct sfc_adapter *sa = dev->data->dev_private;
1228
1229         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1230
1231         sfc_adapter_lock(sa);
1232
1233         sfc_tx_qstop(sa, tx_queue_id);
1234
1235         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1236
1237         sfc_adapter_unlock(sa);
1238         return 0;
1239 }
1240
1241 static efx_tunnel_protocol_t
1242 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1243 {
1244         switch (rte_type) {
1245         case RTE_TUNNEL_TYPE_VXLAN:
1246                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1247         case RTE_TUNNEL_TYPE_GENEVE:
1248                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1249         default:
1250                 return EFX_TUNNEL_NPROTOS;
1251         }
1252 }
1253
1254 enum sfc_udp_tunnel_op_e {
1255         SFC_UDP_TUNNEL_ADD_PORT,
1256         SFC_UDP_TUNNEL_DEL_PORT,
1257 };
1258
1259 static int
1260 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1261                       struct rte_eth_udp_tunnel *tunnel_udp,
1262                       enum sfc_udp_tunnel_op_e op)
1263 {
1264         struct sfc_adapter *sa = dev->data->dev_private;
1265         efx_tunnel_protocol_t tunnel_proto;
1266         int rc;
1267
1268         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1269                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1270                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1271                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1272
1273         tunnel_proto =
1274                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1275         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1276                 rc = ENOTSUP;
1277                 goto fail_bad_proto;
1278         }
1279
1280         sfc_adapter_lock(sa);
1281
1282         switch (op) {
1283         case SFC_UDP_TUNNEL_ADD_PORT:
1284                 rc = efx_tunnel_config_udp_add(sa->nic,
1285                                                tunnel_udp->udp_port,
1286                                                tunnel_proto);
1287                 break;
1288         case SFC_UDP_TUNNEL_DEL_PORT:
1289                 rc = efx_tunnel_config_udp_remove(sa->nic,
1290                                                   tunnel_udp->udp_port,
1291                                                   tunnel_proto);
1292                 break;
1293         default:
1294                 rc = EINVAL;
1295                 goto fail_bad_op;
1296         }
1297
1298         if (rc != 0)
1299                 goto fail_op;
1300
1301         if (sa->state == SFC_ADAPTER_STARTED) {
1302                 rc = efx_tunnel_reconfigure(sa->nic);
1303                 if (rc == EAGAIN) {
1304                         /*
1305                          * Configuration is accepted by FW and MC reboot
1306                          * is initiated to apply the changes. MC reboot
1307                          * will be handled in a usual way (MC reboot
1308                          * event on management event queue and adapter
1309                          * restart).
1310                          */
1311                         rc = 0;
1312                 } else if (rc != 0) {
1313                         goto fail_reconfigure;
1314                 }
1315         }
1316
1317         sfc_adapter_unlock(sa);
1318         return 0;
1319
1320 fail_reconfigure:
1321         /* Remove/restore entry since the change makes the trouble */
1322         switch (op) {
1323         case SFC_UDP_TUNNEL_ADD_PORT:
1324                 (void)efx_tunnel_config_udp_remove(sa->nic,
1325                                                    tunnel_udp->udp_port,
1326                                                    tunnel_proto);
1327                 break;
1328         case SFC_UDP_TUNNEL_DEL_PORT:
1329                 (void)efx_tunnel_config_udp_add(sa->nic,
1330                                                 tunnel_udp->udp_port,
1331                                                 tunnel_proto);
1332                 break;
1333         }
1334
1335 fail_op:
1336 fail_bad_op:
1337         sfc_adapter_unlock(sa);
1338
1339 fail_bad_proto:
1340         SFC_ASSERT(rc > 0);
1341         return -rc;
1342 }
1343
1344 static int
1345 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1346                             struct rte_eth_udp_tunnel *tunnel_udp)
1347 {
1348         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1349 }
1350
1351 static int
1352 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1353                             struct rte_eth_udp_tunnel *tunnel_udp)
1354 {
1355         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1356 }
1357
1358 #if EFSYS_OPT_RX_SCALE
1359 static int
1360 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1361                           struct rte_eth_rss_conf *rss_conf)
1362 {
1363         struct sfc_adapter *sa = dev->data->dev_private;
1364         struct sfc_port *port = &sa->port;
1365
1366         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1367                 return -ENOTSUP;
1368
1369         if (sa->rss_channels == 0)
1370                 return -EINVAL;
1371
1372         sfc_adapter_lock(sa);
1373
1374         /*
1375          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1376          * hence, conversion is done here to derive a correct set of ETH_RSS
1377          * flags which corresponds to the active EFX configuration stored
1378          * locally in 'sfc_adapter' and kept up-to-date
1379          */
1380         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1381         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1382         if (rss_conf->rss_key != NULL)
1383                 rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1384
1385         sfc_adapter_unlock(sa);
1386
1387         return 0;
1388 }
1389
1390 static int
1391 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1392                         struct rte_eth_rss_conf *rss_conf)
1393 {
1394         struct sfc_adapter *sa = dev->data->dev_private;
1395         struct sfc_port *port = &sa->port;
1396         unsigned int efx_hash_types;
1397         int rc = 0;
1398
1399         if (port->isolated)
1400                 return -ENOTSUP;
1401
1402         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1403                 sfc_err(sa, "RSS is not available");
1404                 return -ENOTSUP;
1405         }
1406
1407         if (sa->rss_channels == 0) {
1408                 sfc_err(sa, "RSS is not configured");
1409                 return -EINVAL;
1410         }
1411
1412         if ((rss_conf->rss_key != NULL) &&
1413             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1414                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1415                         sizeof(sa->rss_key));
1416                 return -EINVAL;
1417         }
1418
1419         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1420                 sfc_err(sa, "unsupported hash functions requested");
1421                 return -EINVAL;
1422         }
1423
1424         sfc_adapter_lock(sa);
1425
1426         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1427
1428         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1429                                    EFX_RX_HASHALG_TOEPLITZ,
1430                                    efx_hash_types, B_TRUE);
1431         if (rc != 0)
1432                 goto fail_scale_mode_set;
1433
1434         if (rss_conf->rss_key != NULL) {
1435                 if (sa->state == SFC_ADAPTER_STARTED) {
1436                         rc = efx_rx_scale_key_set(sa->nic,
1437                                                   EFX_RSS_CONTEXT_DEFAULT,
1438                                                   rss_conf->rss_key,
1439                                                   sizeof(sa->rss_key));
1440                         if (rc != 0)
1441                                 goto fail_scale_key_set;
1442                 }
1443
1444                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1445         }
1446
1447         sa->rss_hash_types = efx_hash_types;
1448
1449         sfc_adapter_unlock(sa);
1450
1451         return 0;
1452
1453 fail_scale_key_set:
1454         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1455                                   EFX_RX_HASHALG_TOEPLITZ,
1456                                   sa->rss_hash_types, B_TRUE) != 0)
1457                 sfc_err(sa, "failed to restore RSS mode");
1458
1459 fail_scale_mode_set:
1460         sfc_adapter_unlock(sa);
1461         return -rc;
1462 }
1463
1464 static int
1465 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1466                        struct rte_eth_rss_reta_entry64 *reta_conf,
1467                        uint16_t reta_size)
1468 {
1469         struct sfc_adapter *sa = dev->data->dev_private;
1470         struct sfc_port *port = &sa->port;
1471         int entry;
1472
1473         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1474                 return -ENOTSUP;
1475
1476         if (sa->rss_channels == 0)
1477                 return -EINVAL;
1478
1479         if (reta_size != EFX_RSS_TBL_SIZE)
1480                 return -EINVAL;
1481
1482         sfc_adapter_lock(sa);
1483
1484         for (entry = 0; entry < reta_size; entry++) {
1485                 int grp = entry / RTE_RETA_GROUP_SIZE;
1486                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1487
1488                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1489                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1490         }
1491
1492         sfc_adapter_unlock(sa);
1493
1494         return 0;
1495 }
1496
1497 static int
1498 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1499                         struct rte_eth_rss_reta_entry64 *reta_conf,
1500                         uint16_t reta_size)
1501 {
1502         struct sfc_adapter *sa = dev->data->dev_private;
1503         struct sfc_port *port = &sa->port;
1504         unsigned int *rss_tbl_new;
1505         uint16_t entry;
1506         int rc = 0;
1507
1508
1509         if (port->isolated)
1510                 return -ENOTSUP;
1511
1512         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1513                 sfc_err(sa, "RSS is not available");
1514                 return -ENOTSUP;
1515         }
1516
1517         if (sa->rss_channels == 0) {
1518                 sfc_err(sa, "RSS is not configured");
1519                 return -EINVAL;
1520         }
1521
1522         if (reta_size != EFX_RSS_TBL_SIZE) {
1523                 sfc_err(sa, "RETA size is wrong (should be %u)",
1524                         EFX_RSS_TBL_SIZE);
1525                 return -EINVAL;
1526         }
1527
1528         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1529         if (rss_tbl_new == NULL)
1530                 return -ENOMEM;
1531
1532         sfc_adapter_lock(sa);
1533
1534         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1535
1536         for (entry = 0; entry < reta_size; entry++) {
1537                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1538                 struct rte_eth_rss_reta_entry64 *grp;
1539
1540                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1541
1542                 if (grp->mask & (1ull << grp_idx)) {
1543                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1544                                 rc = EINVAL;
1545                                 goto bad_reta_entry;
1546                         }
1547                         rss_tbl_new[entry] = grp->reta[grp_idx];
1548                 }
1549         }
1550
1551         if (sa->state == SFC_ADAPTER_STARTED) {
1552                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1553                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1554                 if (rc != 0)
1555                         goto fail_scale_tbl_set;
1556         }
1557
1558         rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1559
1560 fail_scale_tbl_set:
1561 bad_reta_entry:
1562         sfc_adapter_unlock(sa);
1563
1564         rte_free(rss_tbl_new);
1565
1566         SFC_ASSERT(rc >= 0);
1567         return -rc;
1568 }
1569 #endif
1570
1571 static int
1572 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1573                     enum rte_filter_op filter_op,
1574                     void *arg)
1575 {
1576         struct sfc_adapter *sa = dev->data->dev_private;
1577         int rc = ENOTSUP;
1578
1579         sfc_log_init(sa, "entry");
1580
1581         switch (filter_type) {
1582         case RTE_ETH_FILTER_NONE:
1583                 sfc_err(sa, "Global filters configuration not supported");
1584                 break;
1585         case RTE_ETH_FILTER_MACVLAN:
1586                 sfc_err(sa, "MACVLAN filters not supported");
1587                 break;
1588         case RTE_ETH_FILTER_ETHERTYPE:
1589                 sfc_err(sa, "EtherType filters not supported");
1590                 break;
1591         case RTE_ETH_FILTER_FLEXIBLE:
1592                 sfc_err(sa, "Flexible filters not supported");
1593                 break;
1594         case RTE_ETH_FILTER_SYN:
1595                 sfc_err(sa, "SYN filters not supported");
1596                 break;
1597         case RTE_ETH_FILTER_NTUPLE:
1598                 sfc_err(sa, "NTUPLE filters not supported");
1599                 break;
1600         case RTE_ETH_FILTER_TUNNEL:
1601                 sfc_err(sa, "Tunnel filters not supported");
1602                 break;
1603         case RTE_ETH_FILTER_FDIR:
1604                 sfc_err(sa, "Flow Director filters not supported");
1605                 break;
1606         case RTE_ETH_FILTER_HASH:
1607                 sfc_err(sa, "Hash filters not supported");
1608                 break;
1609         case RTE_ETH_FILTER_GENERIC:
1610                 if (filter_op != RTE_ETH_FILTER_GET) {
1611                         rc = EINVAL;
1612                 } else {
1613                         *(const void **)arg = &sfc_flow_ops;
1614                         rc = 0;
1615                 }
1616                 break;
1617         default:
1618                 sfc_err(sa, "Unknown filter type %u", filter_type);
1619                 break;
1620         }
1621
1622         sfc_log_init(sa, "exit: %d", -rc);
1623         SFC_ASSERT(rc >= 0);
1624         return -rc;
1625 }
1626
1627 static const struct eth_dev_ops sfc_eth_dev_ops = {
1628         .dev_configure                  = sfc_dev_configure,
1629         .dev_start                      = sfc_dev_start,
1630         .dev_stop                       = sfc_dev_stop,
1631         .dev_set_link_up                = sfc_dev_set_link_up,
1632         .dev_set_link_down              = sfc_dev_set_link_down,
1633         .dev_close                      = sfc_dev_close,
1634         .promiscuous_enable             = sfc_dev_promisc_enable,
1635         .promiscuous_disable            = sfc_dev_promisc_disable,
1636         .allmulticast_enable            = sfc_dev_allmulti_enable,
1637         .allmulticast_disable           = sfc_dev_allmulti_disable,
1638         .link_update                    = sfc_dev_link_update,
1639         .stats_get                      = sfc_stats_get,
1640         .stats_reset                    = sfc_stats_reset,
1641         .xstats_get                     = sfc_xstats_get,
1642         .xstats_reset                   = sfc_stats_reset,
1643         .xstats_get_names               = sfc_xstats_get_names,
1644         .dev_infos_get                  = sfc_dev_infos_get,
1645         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1646         .mtu_set                        = sfc_dev_set_mtu,
1647         .rx_queue_start                 = sfc_rx_queue_start,
1648         .rx_queue_stop                  = sfc_rx_queue_stop,
1649         .tx_queue_start                 = sfc_tx_queue_start,
1650         .tx_queue_stop                  = sfc_tx_queue_stop,
1651         .rx_queue_setup                 = sfc_rx_queue_setup,
1652         .rx_queue_release               = sfc_rx_queue_release,
1653         .rx_queue_count                 = sfc_rx_queue_count,
1654         .rx_descriptor_done             = sfc_rx_descriptor_done,
1655         .rx_descriptor_status           = sfc_rx_descriptor_status,
1656         .tx_descriptor_status           = sfc_tx_descriptor_status,
1657         .tx_queue_setup                 = sfc_tx_queue_setup,
1658         .tx_queue_release               = sfc_tx_queue_release,
1659         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1660         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1661         .mac_addr_set                   = sfc_mac_addr_set,
1662         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1663         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1664 #if EFSYS_OPT_RX_SCALE
1665         .reta_update                    = sfc_dev_rss_reta_update,
1666         .reta_query                     = sfc_dev_rss_reta_query,
1667         .rss_hash_update                = sfc_dev_rss_hash_update,
1668         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1669 #endif
1670         .filter_ctrl                    = sfc_dev_filter_ctrl,
1671         .set_mc_addr_list               = sfc_set_mc_addr_list,
1672         .rxq_info_get                   = sfc_rx_queue_info_get,
1673         .txq_info_get                   = sfc_tx_queue_info_get,
1674         .fw_version_get                 = sfc_fw_version_get,
1675         .xstats_get_by_id               = sfc_xstats_get_by_id,
1676         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1677 };
1678
1679 /**
1680  * Duplicate a string in potentially shared memory required for
1681  * multi-process support.
1682  *
1683  * strdup() allocates from process-local heap/memory.
1684  */
1685 static char *
1686 sfc_strdup(const char *str)
1687 {
1688         size_t size;
1689         char *copy;
1690
1691         if (str == NULL)
1692                 return NULL;
1693
1694         size = strlen(str) + 1;
1695         copy = rte_malloc(__func__, size, 0);
1696         if (copy != NULL)
1697                 rte_memcpy(copy, str, size);
1698
1699         return copy;
1700 }
1701
1702 static int
1703 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1704 {
1705         struct sfc_adapter *sa = dev->data->dev_private;
1706         unsigned int avail_caps = 0;
1707         const char *rx_name = NULL;
1708         const char *tx_name = NULL;
1709         int rc;
1710
1711         switch (sa->family) {
1712         case EFX_FAMILY_HUNTINGTON:
1713         case EFX_FAMILY_MEDFORD:
1714                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1715                 break;
1716         default:
1717                 break;
1718         }
1719
1720         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1721                                 sfc_kvarg_string_handler, &rx_name);
1722         if (rc != 0)
1723                 goto fail_kvarg_rx_datapath;
1724
1725         if (rx_name != NULL) {
1726                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1727                 if (sa->dp_rx == NULL) {
1728                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1729                         rc = ENOENT;
1730                         goto fail_dp_rx;
1731                 }
1732                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1733                         sfc_err(sa,
1734                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1735                                 rx_name);
1736                         rc = EINVAL;
1737                         goto fail_dp_rx_caps;
1738                 }
1739         } else {
1740                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1741                 if (sa->dp_rx == NULL) {
1742                         sfc_err(sa, "Rx datapath by caps %#x not found",
1743                                 avail_caps);
1744                         rc = ENOENT;
1745                         goto fail_dp_rx;
1746                 }
1747         }
1748
1749         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1750         if (sa->dp_rx_name == NULL) {
1751                 rc = ENOMEM;
1752                 goto fail_dp_rx_name;
1753         }
1754
1755         sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1756
1757         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1758
1759         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1760                                 sfc_kvarg_string_handler, &tx_name);
1761         if (rc != 0)
1762                 goto fail_kvarg_tx_datapath;
1763
1764         if (tx_name != NULL) {
1765                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1766                 if (sa->dp_tx == NULL) {
1767                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1768                         rc = ENOENT;
1769                         goto fail_dp_tx;
1770                 }
1771                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1772                         sfc_err(sa,
1773                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1774                                 tx_name);
1775                         rc = EINVAL;
1776                         goto fail_dp_tx_caps;
1777                 }
1778         } else {
1779                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1780                 if (sa->dp_tx == NULL) {
1781                         sfc_err(sa, "Tx datapath by caps %#x not found",
1782                                 avail_caps);
1783                         rc = ENOENT;
1784                         goto fail_dp_tx;
1785                 }
1786         }
1787
1788         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1789         if (sa->dp_tx_name == NULL) {
1790                 rc = ENOMEM;
1791                 goto fail_dp_tx_name;
1792         }
1793
1794         sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1795
1796         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1797
1798         dev->dev_ops = &sfc_eth_dev_ops;
1799
1800         return 0;
1801
1802 fail_dp_tx_name:
1803 fail_dp_tx_caps:
1804         sa->dp_tx = NULL;
1805
1806 fail_dp_tx:
1807 fail_kvarg_tx_datapath:
1808         rte_free(sa->dp_rx_name);
1809         sa->dp_rx_name = NULL;
1810
1811 fail_dp_rx_name:
1812 fail_dp_rx_caps:
1813         sa->dp_rx = NULL;
1814
1815 fail_dp_rx:
1816 fail_kvarg_rx_datapath:
1817         return rc;
1818 }
1819
1820 static void
1821 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1822 {
1823         struct sfc_adapter *sa = dev->data->dev_private;
1824
1825         dev->dev_ops = NULL;
1826         dev->rx_pkt_burst = NULL;
1827         dev->tx_pkt_burst = NULL;
1828
1829         rte_free(sa->dp_tx_name);
1830         sa->dp_tx_name = NULL;
1831         sa->dp_tx = NULL;
1832
1833         rte_free(sa->dp_rx_name);
1834         sa->dp_rx_name = NULL;
1835         sa->dp_rx = NULL;
1836 }
1837
1838 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1839         .rxq_info_get                   = sfc_rx_queue_info_get,
1840         .txq_info_get                   = sfc_tx_queue_info_get,
1841 };
1842
1843 static int
1844 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1845 {
1846         /*
1847          * Device private data has really many process-local pointers.
1848          * Below code should be extremely careful to use data located
1849          * in shared memory only.
1850          */
1851         struct sfc_adapter *sa = dev->data->dev_private;
1852         const struct sfc_dp_rx *dp_rx;
1853         const struct sfc_dp_tx *dp_tx;
1854         int rc;
1855
1856         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1857         if (dp_rx == NULL) {
1858                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1859                 rc = ENOENT;
1860                 goto fail_dp_rx;
1861         }
1862         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1863                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1864                         sa->dp_tx_name);
1865                 rc = EINVAL;
1866                 goto fail_dp_rx_multi_process;
1867         }
1868
1869         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1870         if (dp_tx == NULL) {
1871                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1872                 rc = ENOENT;
1873                 goto fail_dp_tx;
1874         }
1875         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1876                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1877                         sa->dp_tx_name);
1878                 rc = EINVAL;
1879                 goto fail_dp_tx_multi_process;
1880         }
1881
1882         dev->rx_pkt_burst = dp_rx->pkt_burst;
1883         dev->tx_pkt_burst = dp_tx->pkt_burst;
1884         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1885
1886         return 0;
1887
1888 fail_dp_tx_multi_process:
1889 fail_dp_tx:
1890 fail_dp_rx_multi_process:
1891 fail_dp_rx:
1892         return rc;
1893 }
1894
1895 static void
1896 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1897 {
1898         dev->dev_ops = NULL;
1899         dev->tx_pkt_burst = NULL;
1900         dev->rx_pkt_burst = NULL;
1901 }
1902
1903 static void
1904 sfc_register_dp(void)
1905 {
1906         /* Register once */
1907         if (TAILQ_EMPTY(&sfc_dp_head)) {
1908                 /* Prefer EF10 datapath */
1909                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1910                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1911
1912                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1913                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1914                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1915         }
1916 }
1917
1918 static int
1919 sfc_eth_dev_init(struct rte_eth_dev *dev)
1920 {
1921         struct sfc_adapter *sa = dev->data->dev_private;
1922         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1923         int rc;
1924         const efx_nic_cfg_t *encp;
1925         const struct ether_addr *from;
1926
1927         sfc_register_dp();
1928
1929         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1930                 return -sfc_eth_dev_secondary_set_ops(dev);
1931
1932         /* Required for logging */
1933         sa->pci_addr = pci_dev->addr;
1934         sa->port_id = dev->data->port_id;
1935
1936         sa->eth_dev = dev;
1937
1938         /* Copy PCI device info to the dev->data */
1939         rte_eth_copy_pci_info(dev, pci_dev);
1940
1941         rc = sfc_kvargs_parse(sa);
1942         if (rc != 0)
1943                 goto fail_kvargs_parse;
1944
1945         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1946                                 sfc_kvarg_bool_handler, &sa->debug_init);
1947         if (rc != 0)
1948                 goto fail_kvarg_debug_init;
1949
1950         sfc_log_init(sa, "entry");
1951
1952         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1953         if (dev->data->mac_addrs == NULL) {
1954                 rc = ENOMEM;
1955                 goto fail_mac_addrs;
1956         }
1957
1958         sfc_adapter_lock_init(sa);
1959         sfc_adapter_lock(sa);
1960
1961         sfc_log_init(sa, "probing");
1962         rc = sfc_probe(sa);
1963         if (rc != 0)
1964                 goto fail_probe;
1965
1966         sfc_log_init(sa, "set device ops");
1967         rc = sfc_eth_dev_set_ops(dev);
1968         if (rc != 0)
1969                 goto fail_set_ops;
1970
1971         sfc_log_init(sa, "attaching");
1972         rc = sfc_attach(sa);
1973         if (rc != 0)
1974                 goto fail_attach;
1975
1976         encp = efx_nic_cfg_get(sa->nic);
1977
1978         /*
1979          * The arguments are really reverse order in comparison to
1980          * Linux kernel. Copy from NIC config to Ethernet device data.
1981          */
1982         from = (const struct ether_addr *)(encp->enc_mac_addr);
1983         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1984
1985         sfc_adapter_unlock(sa);
1986
1987         sfc_log_init(sa, "done");
1988         return 0;
1989
1990 fail_attach:
1991         sfc_eth_dev_clear_ops(dev);
1992
1993 fail_set_ops:
1994         sfc_unprobe(sa);
1995
1996 fail_probe:
1997         sfc_adapter_unlock(sa);
1998         sfc_adapter_lock_fini(sa);
1999         rte_free(dev->data->mac_addrs);
2000         dev->data->mac_addrs = NULL;
2001
2002 fail_mac_addrs:
2003 fail_kvarg_debug_init:
2004         sfc_kvargs_cleanup(sa);
2005
2006 fail_kvargs_parse:
2007         sfc_log_init(sa, "failed %d", rc);
2008         SFC_ASSERT(rc > 0);
2009         return -rc;
2010 }
2011
2012 static int
2013 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2014 {
2015         struct sfc_adapter *sa;
2016
2017         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2018                 sfc_eth_dev_secondary_clear_ops(dev);
2019                 return 0;
2020         }
2021
2022         sa = dev->data->dev_private;
2023         sfc_log_init(sa, "entry");
2024
2025         sfc_adapter_lock(sa);
2026
2027         sfc_eth_dev_clear_ops(dev);
2028
2029         sfc_detach(sa);
2030         sfc_unprobe(sa);
2031
2032         rte_free(dev->data->mac_addrs);
2033         dev->data->mac_addrs = NULL;
2034
2035         sfc_kvargs_cleanup(sa);
2036
2037         sfc_adapter_unlock(sa);
2038         sfc_adapter_lock_fini(sa);
2039
2040         sfc_log_init(sa, "done");
2041
2042         /* Required for logging, so cleanup last */
2043         sa->eth_dev = NULL;
2044         return 0;
2045 }
2046
2047 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2048         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2049         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2050         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2051         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2052         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2053         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2054         { .vendor_id = 0 /* sentinel */ }
2055 };
2056
2057 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2058         struct rte_pci_device *pci_dev)
2059 {
2060         return rte_eth_dev_pci_generic_probe(pci_dev,
2061                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2062 }
2063
2064 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2065 {
2066         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2067 }
2068
2069 static struct rte_pci_driver sfc_efx_pmd = {
2070         .id_table = pci_id_sfc_efx_map,
2071         .drv_flags =
2072                 RTE_PCI_DRV_INTR_LSC |
2073                 RTE_PCI_DRV_NEED_MAPPING,
2074         .probe = sfc_eth_dev_pci_probe,
2075         .remove = sfc_eth_dev_pci_remove,
2076 };
2077
2078 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2079 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2080 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2081 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2082         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2083         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2084         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2085         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
2086         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
2087         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);