drivers/net/sfc/sfc_ethdev.c

   1 /*-
   2  * Copyright (c) 2016 Solarflare Communications Inc.
   3  * All rights reserved.
   4  *
   5  * This software was jointly developed between OKTET Labs (under contract
   6  * for Solarflare) and Solarflare Communications, Inc.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright notice,
  12  *    this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright notice,
  14  *    this list of conditions and the following disclaimer in the documentation
  15  *    and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  18  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  19  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  24  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  25  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  27  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <rte_dev.h>
  31 #include <rte_ethdev.h>
  32 #include <rte_pci.h>
  33
  34 #include "efx.h"
  35
  36 #include "sfc.h"
  37 #include "sfc_debug.h"
  38 #include "sfc_log.h"
  39 #include "sfc_kvargs.h"
  40 #include "sfc_ev.h"
  41 #include "sfc_rx.h"
  42 #include "sfc_tx.h"
  43
  44
  45 static void
  46 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  47 {
  48         struct sfc_adapter *sa = dev->data->dev_private;
  49         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  50
  51         sfc_log_init(sa, "entry");
  52
  53         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
  54         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
  55
  56         /* Autonegotiation may be disabled */
  57         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
  58         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
  59                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
  60         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
  61                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
  62         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
  63                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
  64
  65         dev_info->max_rx_queues = sa->rxq_max;
  66         dev_info->max_tx_queues = sa->txq_max;
  67
  68         /* By default packets are dropped if no descriptors are available */
  69         dev_info->default_rxconf.rx_drop_en = 1;
  70
  71         dev_info->rx_offload_capa =
  72                 DEV_RX_OFFLOAD_IPV4_CKSUM |
  73                 DEV_RX_OFFLOAD_UDP_CKSUM |
  74                 DEV_RX_OFFLOAD_TCP_CKSUM;
  75
  76         dev_info->tx_offload_capa =
  77                 DEV_TX_OFFLOAD_IPV4_CKSUM |
  78                 DEV_TX_OFFLOAD_UDP_CKSUM |
  79                 DEV_TX_OFFLOAD_TCP_CKSUM;
  80
  81         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
  82         if (!encp->enc_hw_tx_insert_vlan_enabled)
  83                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
  84         else
  85                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
  86
  87 #if EFSYS_OPT_RX_SCALE
  88         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
  89                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
  90                 dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
  91                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
  92         }
  93 #endif
  94
  95         if (sa->tso)
  96                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
  97
  98         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
  99         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 100         /* The RXQ hardware requires that the descriptor count is a power
 101          * of 2, but rx_desc_lim cannot properly describe that constraint.
 102          */
 103         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 104
 105         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 106         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 107         /*
 108          * The TXQ hardware requires that the descriptor count is a power
 109          * of 2, but tx_desc_lim cannot properly describe that constraint
 110          */
 111         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 112 }
 113
 114 static const uint32_t *
 115 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 116 {
 117         static const uint32_t ptypes[] = {
 118                 RTE_PTYPE_L2_ETHER,
 119                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 120                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 121                 RTE_PTYPE_L4_TCP,
 122                 RTE_PTYPE_L4_UDP,
 123                 RTE_PTYPE_UNKNOWN
 124         };
 125
 126         if (dev->rx_pkt_burst == sfc_recv_pkts)
 127                 return ptypes;
 128
 129         return NULL;
 130 }
 131
 132 static int
 133 sfc_dev_configure(struct rte_eth_dev *dev)
 134 {
 135         struct rte_eth_dev_data *dev_data = dev->data;
 136         struct sfc_adapter *sa = dev_data->dev_private;
 137         int rc;
 138
 139         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 140                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 141
 142         sfc_adapter_lock(sa);
 143         switch (sa->state) {
 144         case SFC_ADAPTER_CONFIGURED:
 145                 sfc_close(sa);
 146                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 147                 /* FALLTHROUGH */
 148         case SFC_ADAPTER_INITIALIZED:
 149                 rc = sfc_configure(sa);
 150                 break;
 151         default:
 152                 sfc_err(sa, "unexpected adapter state %u to configure",
 153                         sa->state);
 154                 rc = EINVAL;
 155                 break;
 156         }
 157         sfc_adapter_unlock(sa);
 158
 159         sfc_log_init(sa, "done %d", rc);
 160         SFC_ASSERT(rc >= 0);
 161         return -rc;
 162 }
 163
 164 static int
 165 sfc_dev_start(struct rte_eth_dev *dev)
 166 {
 167         struct sfc_adapter *sa = dev->data->dev_private;
 168         int rc;
 169
 170         sfc_log_init(sa, "entry");
 171
 172         sfc_adapter_lock(sa);
 173         rc = sfc_start(sa);
 174         sfc_adapter_unlock(sa);
 175
 176         sfc_log_init(sa, "done %d", rc);
 177         SFC_ASSERT(rc >= 0);
 178         return -rc;
 179 }
 180
 181 static int
 182 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 183 {
 184         struct sfc_adapter *sa = dev->data->dev_private;
 185         struct rte_eth_link *dev_link = &dev->data->dev_link;
 186         struct rte_eth_link old_link;
 187         struct rte_eth_link current_link;
 188
 189         sfc_log_init(sa, "entry");
 190
 191         if (sa->state != SFC_ADAPTER_STARTED)
 192                 return 0;
 193
 194 retry:
 195         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 196         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 197
 198         if (wait_to_complete) {
 199                 efx_link_mode_t link_mode;
 200
 201                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 202                         link_mode = EFX_LINK_UNKNOWN;
 203                 sfc_port_link_mode_to_info(link_mode, &current_link);
 204
 205                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 206                                          *(uint64_t *)&old_link,
 207                                          *(uint64_t *)&current_link))
 208                         goto retry;
 209         } else {
 210                 sfc_ev_mgmt_qpoll(sa);
 211                 *(int64_t *)&current_link =
 212                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 213         }
 214
 215         if (old_link.link_status != current_link.link_status)
 216                 sfc_info(sa, "Link status is %s",
 217                          current_link.link_status ? "UP" : "DOWN");
 218
 219         return old_link.link_status == current_link.link_status ? 0 : -1;
 220 }
 221
 222 static void
 223 sfc_dev_stop(struct rte_eth_dev *dev)
 224 {
 225         struct sfc_adapter *sa = dev->data->dev_private;
 226
 227         sfc_log_init(sa, "entry");
 228
 229         sfc_adapter_lock(sa);
 230         sfc_stop(sa);
 231         sfc_adapter_unlock(sa);
 232
 233         sfc_log_init(sa, "done");
 234 }
 235
 236 static int
 237 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 238 {
 239         struct sfc_adapter *sa = dev->data->dev_private;
 240         int rc;
 241
 242         sfc_log_init(sa, "entry");
 243
 244         sfc_adapter_lock(sa);
 245         rc = sfc_start(sa);
 246         sfc_adapter_unlock(sa);
 247
 248         SFC_ASSERT(rc >= 0);
 249         return -rc;
 250 }
 251
 252 static int
 253 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 254 {
 255         struct sfc_adapter *sa = dev->data->dev_private;
 256
 257         sfc_log_init(sa, "entry");
 258
 259         sfc_adapter_lock(sa);
 260         sfc_stop(sa);
 261         sfc_adapter_unlock(sa);
 262
 263         return 0;
 264 }
 265
 266 static void
 267 sfc_dev_close(struct rte_eth_dev *dev)
 268 {
 269         struct sfc_adapter *sa = dev->data->dev_private;
 270
 271         sfc_log_init(sa, "entry");
 272
 273         sfc_adapter_lock(sa);
 274         switch (sa->state) {
 275         case SFC_ADAPTER_STARTED:
 276                 sfc_stop(sa);
 277                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 278                 /* FALLTHROUGH */
 279         case SFC_ADAPTER_CONFIGURED:
 280                 sfc_close(sa);
 281                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 282                 /* FALLTHROUGH */
 283         case SFC_ADAPTER_INITIALIZED:
 284                 break;
 285         default:
 286                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 287                 break;
 288         }
 289         sfc_adapter_unlock(sa);
 290
 291         sfc_log_init(sa, "done");
 292 }
 293
 294 static void
 295 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 296                    boolean_t enabled)
 297 {
 298         struct sfc_port *port;
 299         boolean_t *toggle;
 300         struct sfc_adapter *sa = dev->data->dev_private;
 301         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 302         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 303
 304         sfc_adapter_lock(sa);
 305
 306         port = &sa->port;
 307         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 308
 309         if (*toggle != enabled) {
 310                 *toggle = enabled;
 311
 312                 if ((sa->state == SFC_ADAPTER_STARTED) &&
 313                     (sfc_set_rx_mode(sa) != 0)) {
 314                         *toggle = !(enabled);
 315                         sfc_warn(sa, "Failed to %s %s mode",
 316                                  ((enabled) ? "enable" : "disable"), desc);
 317                 }
 318         }
 319
 320         sfc_adapter_unlock(sa);
 321 }
 322
 323 static void
 324 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 325 {
 326         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 327 }
 328
 329 static void
 330 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 331 {
 332         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 333 }
 334
 335 static void
 336 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 337 {
 338         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 339 }
 340
 341 static void
 342 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 343 {
 344         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 345 }
 346
 347 static int
 348 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 349                    uint16_t nb_rx_desc, unsigned int socket_id,
 350                    const struct rte_eth_rxconf *rx_conf,
 351                    struct rte_mempool *mb_pool)
 352 {
 353         struct sfc_adapter *sa = dev->data->dev_private;
 354         int rc;
 355
 356         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 357                      rx_queue_id, nb_rx_desc, socket_id);
 358
 359         sfc_adapter_lock(sa);
 360
 361         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 362                           rx_conf, mb_pool);
 363         if (rc != 0)
 364                 goto fail_rx_qinit;
 365
 366         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq;
 367
 368         sfc_adapter_unlock(sa);
 369
 370         return 0;
 371
 372 fail_rx_qinit:
 373         sfc_adapter_unlock(sa);
 374         SFC_ASSERT(rc > 0);
 375         return -rc;
 376 }
 377
 378 static void
 379 sfc_rx_queue_release(void *queue)
 380 {
 381         struct sfc_rxq *rxq = queue;
 382         struct sfc_adapter *sa;
 383         unsigned int sw_index;
 384
 385         if (rxq == NULL)
 386                 return;
 387
 388         sa = rxq->evq->sa;
 389         sfc_adapter_lock(sa);
 390
 391         sw_index = sfc_rxq_sw_index(rxq);
 392
 393         sfc_log_init(sa, "RxQ=%u", sw_index);
 394
 395         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 396
 397         sfc_rx_qfini(sa, sw_index);
 398
 399         sfc_adapter_unlock(sa);
 400 }
 401
 402 static int
 403 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 404                    uint16_t nb_tx_desc, unsigned int socket_id,
 405                    const struct rte_eth_txconf *tx_conf)
 406 {
 407         struct sfc_adapter *sa = dev->data->dev_private;
 408         int rc;
 409
 410         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 411                      tx_queue_id, nb_tx_desc, socket_id);
 412
 413         sfc_adapter_lock(sa);
 414
 415         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 416         if (rc != 0)
 417                 goto fail_tx_qinit;
 418
 419         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq;
 420
 421         sfc_adapter_unlock(sa);
 422         return 0;
 423
 424 fail_tx_qinit:
 425         sfc_adapter_unlock(sa);
 426         SFC_ASSERT(rc > 0);
 427         return -rc;
 428 }
 429
 430 static void
 431 sfc_tx_queue_release(void *queue)
 432 {
 433         struct sfc_txq *txq = queue;
 434         unsigned int sw_index;
 435         struct sfc_adapter *sa;
 436
 437         if (txq == NULL)
 438                 return;
 439
 440         sw_index = sfc_txq_sw_index(txq);
 441
 442         SFC_ASSERT(txq->evq != NULL);
 443         sa = txq->evq->sa;
 444
 445         sfc_log_init(sa, "TxQ = %u", sw_index);
 446
 447         sfc_adapter_lock(sa);
 448
 449         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 450         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 451
 452         sfc_tx_qfini(sa, sw_index);
 453
 454         sfc_adapter_unlock(sa);
 455 }
 456
 457 static void
 458 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 459 {
 460         struct sfc_adapter *sa = dev->data->dev_private;
 461         struct sfc_port *port = &sa->port;
 462         uint64_t *mac_stats;
 463
 464         rte_spinlock_lock(&port->mac_stats_lock);
 465
 466         if (sfc_port_update_mac_stats(sa) != 0)
 467                 goto unlock;
 468
 469         mac_stats = port->mac_stats_buf;
 470
 471         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 472                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 473                 stats->ipackets =
 474                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 475                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 476                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 477                 stats->opackets =
 478                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 479                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 480                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 481                 stats->ibytes =
 482                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 483                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 484                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 485                 stats->obytes =
 486                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 487                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 488                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 489                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 490                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 491                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 492         } else {
 493                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 494                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 495                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 496                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 497                 /*
 498                  * Take into account stats which are whenever supported
 499                  * on EF10. If some stat is not supported by current
 500                  * firmware variant or HW revision, it is guaranteed
 501                  * to be zero in mac_stats.
 502                  */
 503                 stats->imissed =
 504                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 505                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 506                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 507                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 508                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 509                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 510                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 511                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 512                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 513                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 514                 stats->ierrors =
 515                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 516                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 517                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 518                 /* no oerrors counters supported on EF10 */
 519         }
 520
 521 unlock:
 522         rte_spinlock_unlock(&port->mac_stats_lock);
 523 }
 524
 525 static int
 526 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 527                unsigned int xstats_count)
 528 {
 529         struct sfc_adapter *sa = dev->data->dev_private;
 530         struct sfc_port *port = &sa->port;
 531         uint64_t *mac_stats;
 532         int rc;
 533         unsigned int i;
 534         int nstats = 0;
 535
 536         rte_spinlock_lock(&port->mac_stats_lock);
 537
 538         rc = sfc_port_update_mac_stats(sa);
 539         if (rc != 0) {
 540                 SFC_ASSERT(rc > 0);
 541                 nstats = -rc;
 542                 goto unlock;
 543         }
 544
 545         mac_stats = port->mac_stats_buf;
 546
 547         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 548                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 549                         if (xstats != NULL && nstats < (int)xstats_count) {
 550                                 xstats[nstats].id = nstats;
 551                                 xstats[nstats].value = mac_stats[i];
 552                         }
 553                         nstats++;
 554                 }
 555         }
 556
 557 unlock:
 558         rte_spinlock_unlock(&port->mac_stats_lock);
 559
 560         return nstats;
 561 }
 562
 563 static int
 564 sfc_xstats_get_names(struct rte_eth_dev *dev,
 565                      struct rte_eth_xstat_name *xstats_names,
 566                      unsigned int xstats_count)
 567 {
 568         struct sfc_adapter *sa = dev->data->dev_private;
 569         struct sfc_port *port = &sa->port;
 570         unsigned int i;
 571         unsigned int nstats = 0;
 572
 573         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 574                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 575                         if (xstats_names != NULL && nstats < xstats_count)
 576                                 strncpy(xstats_names[nstats].name,
 577                                         efx_mac_stat_name(sa->nic, i),
 578                                         sizeof(xstats_names[0].name));
 579                         nstats++;
 580                 }
 581         }
 582
 583         return nstats;
 584 }
 585
 586 static int
 587 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 588 {
 589         struct sfc_adapter *sa = dev->data->dev_private;
 590         unsigned int wanted_fc, link_fc;
 591
 592         memset(fc_conf, 0, sizeof(*fc_conf));
 593
 594         sfc_adapter_lock(sa);
 595
 596         if (sa->state == SFC_ADAPTER_STARTED)
 597                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 598         else
 599                 link_fc = sa->port.flow_ctrl;
 600
 601         switch (link_fc) {
 602         case 0:
 603                 fc_conf->mode = RTE_FC_NONE;
 604                 break;
 605         case EFX_FCNTL_RESPOND:
 606                 fc_conf->mode = RTE_FC_RX_PAUSE;
 607                 break;
 608         case EFX_FCNTL_GENERATE:
 609                 fc_conf->mode = RTE_FC_TX_PAUSE;
 610                 break;
 611         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 612                 fc_conf->mode = RTE_FC_FULL;
 613                 break;
 614         default:
 615                 sfc_err(sa, "%s: unexpected flow control value %#x",
 616                         __func__, link_fc);
 617         }
 618
 619         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 620
 621         sfc_adapter_unlock(sa);
 622
 623         return 0;
 624 }
 625
 626 static int
 627 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 628 {
 629         struct sfc_adapter *sa = dev->data->dev_private;
 630         struct sfc_port *port = &sa->port;
 631         unsigned int fcntl;
 632         int rc;
 633
 634         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 635             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 636             fc_conf->mac_ctrl_frame_fwd != 0) {
 637                 sfc_err(sa, "unsupported flow control settings specified");
 638                 rc = EINVAL;
 639                 goto fail_inval;
 640         }
 641
 642         switch (fc_conf->mode) {
 643         case RTE_FC_NONE:
 644                 fcntl = 0;
 645                 break;
 646         case RTE_FC_RX_PAUSE:
 647                 fcntl = EFX_FCNTL_RESPOND;
 648                 break;
 649         case RTE_FC_TX_PAUSE:
 650                 fcntl = EFX_FCNTL_GENERATE;
 651                 break;
 652         case RTE_FC_FULL:
 653                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 654                 break;
 655         default:
 656                 rc = EINVAL;
 657                 goto fail_inval;
 658         }
 659
 660         sfc_adapter_lock(sa);
 661
 662         if (sa->state == SFC_ADAPTER_STARTED) {
 663                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 664                 if (rc != 0)
 665                         goto fail_mac_fcntl_set;
 666         }
 667
 668         port->flow_ctrl = fcntl;
 669         port->flow_ctrl_autoneg = fc_conf->autoneg;
 670
 671         sfc_adapter_unlock(sa);
 672
 673         return 0;
 674
 675 fail_mac_fcntl_set:
 676         sfc_adapter_unlock(sa);
 677 fail_inval:
 678         SFC_ASSERT(rc > 0);
 679         return -rc;
 680 }
 681
 682 static int
 683 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 684 {
 685         struct sfc_adapter *sa = dev->data->dev_private;
 686         size_t pdu = EFX_MAC_PDU(mtu);
 687         size_t old_pdu;
 688         int rc;
 689
 690         sfc_log_init(sa, "mtu=%u", mtu);
 691
 692         rc = EINVAL;
 693         if (pdu < EFX_MAC_PDU_MIN) {
 694                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 695                         (unsigned int)mtu, (unsigned int)pdu,
 696                         EFX_MAC_PDU_MIN);
 697                 goto fail_inval;
 698         }
 699         if (pdu > EFX_MAC_PDU_MAX) {
 700                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 701                         (unsigned int)mtu, (unsigned int)pdu,
 702                         EFX_MAC_PDU_MAX);
 703                 goto fail_inval;
 704         }
 705
 706         sfc_adapter_lock(sa);
 707
 708         if (pdu != sa->port.pdu) {
 709                 if (sa->state == SFC_ADAPTER_STARTED) {
 710                         sfc_stop(sa);
 711
 712                         old_pdu = sa->port.pdu;
 713                         sa->port.pdu = pdu;
 714                         rc = sfc_start(sa);
 715                         if (rc != 0)
 716                                 goto fail_start;
 717                 } else {
 718                         sa->port.pdu = pdu;
 719                 }
 720         }
 721
 722         /*
 723          * The driver does not use it, but other PMDs update jumbo_frame
 724          * flag and max_rx_pkt_len when MTU is set.
 725          */
 726         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 727         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 728
 729         sfc_adapter_unlock(sa);
 730
 731         sfc_log_init(sa, "done");
 732         return 0;
 733
 734 fail_start:
 735         sa->port.pdu = old_pdu;
 736         if (sfc_start(sa) != 0)
 737                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 738                         "PDU max size - port is stopped",
 739                         (unsigned int)pdu, (unsigned int)old_pdu);
 740         sfc_adapter_unlock(sa);
 741
 742 fail_inval:
 743         sfc_log_init(sa, "failed %d", rc);
 744         SFC_ASSERT(rc > 0);
 745         return -rc;
 746 }
 747 static void
 748 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 749 {
 750         struct sfc_adapter *sa = dev->data->dev_private;
 751         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 752         int rc;
 753
 754         sfc_adapter_lock(sa);
 755
 756         if (sa->state != SFC_ADAPTER_STARTED) {
 757                 sfc_info(sa, "the port is not started");
 758                 sfc_info(sa, "the new MAC address will be set on port start");
 759
 760                 goto unlock;
 761         }
 762
 763         if (encp->enc_allow_set_mac_with_installed_filters) {
 764                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 765                 if (rc != 0) {
 766                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 767                         goto unlock;
 768                 }
 769
 770                 /*
 771                  * Changing the MAC address by means of MCDI request
 772                  * has no effect on received traffic, therefore
 773                  * we also need to update unicast filters
 774                  */
 775                 rc = sfc_set_rx_mode(sa);
 776                 if (rc != 0)
 777                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 778         } else {
 779                 sfc_warn(sa, "cannot set MAC address with filters installed");
 780                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 781                 sfc_warn(sa, "(some traffic may be dropped)");
 782
 783                 /*
 784                  * Since setting MAC address with filters installed is not
 785                  * allowed on the adapter, one needs to simply restart adapter
 786                  * so that the new MAC address will be taken from an outer
 787                  * storage and set flawlessly by means of sfc_start() call
 788                  */
 789                 sfc_stop(sa);
 790                 rc = sfc_start(sa);
 791                 if (rc != 0)
 792                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 793         }
 794
 795 unlock:
 796         sfc_adapter_unlock(sa);
 797 }
 798
 799
 800 static int
 801 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 802                      uint32_t nb_mc_addr)
 803 {
 804         struct sfc_adapter *sa = dev->data->dev_private;
 805         uint8_t *mc_addrs_p;
 806         uint8_t *mc_addrs;
 807         int rc;
 808         unsigned int i;
 809
 810         if (nb_mc_addr > EFX_MAC_MULTICAST_LIST_MAX) {
 811                 sfc_err(sa, "too many multicast addresses: %u > %u",
 812                          nb_mc_addr, EFX_MAC_MULTICAST_LIST_MAX);
 813                 return -EINVAL;
 814         }
 815
 816         mc_addrs_p = rte_calloc("mc-addrs", nb_mc_addr, EFX_MAC_ADDR_LEN, 0);
 817         if (mc_addrs_p == NULL)
 818                 return -ENOMEM;
 819
 820         mc_addrs = mc_addrs_p;
 821
 822         for (i = 0; i < nb_mc_addr; ++i) {
 823                 (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 824                                  EFX_MAC_ADDR_LEN);
 825                 mc_addrs += EFX_MAC_ADDR_LEN;
 826         }
 827
 828         rc = efx_mac_multicast_list_set(sa->nic, mc_addrs_p, nb_mc_addr);
 829
 830         rte_free(mc_addrs_p);
 831
 832         if (rc != 0)
 833                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 834
 835         SFC_ASSERT(rc > 0);
 836         return -rc;
 837 }
 838
 839 static void
 840 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 841                       struct rte_eth_rxq_info *qinfo)
 842 {
 843         struct sfc_adapter *sa = dev->data->dev_private;
 844         struct sfc_rxq_info *rxq_info;
 845         struct sfc_rxq *rxq;
 846
 847         sfc_adapter_lock(sa);
 848
 849         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 850
 851         rxq_info = &sa->rxq_info[rx_queue_id];
 852         rxq = rxq_info->rxq;
 853         SFC_ASSERT(rxq != NULL);
 854
 855         qinfo->mp = rxq->refill_mb_pool;
 856         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 857         qinfo->conf.rx_drop_en = 1;
 858         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 859         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 860         qinfo->nb_desc = rxq_info->entries;
 861
 862         sfc_adapter_unlock(sa);
 863 }
 864
 865 static void
 866 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 867                       struct rte_eth_txq_info *qinfo)
 868 {
 869         struct sfc_adapter *sa = dev->data->dev_private;
 870         struct sfc_txq_info *txq_info;
 871
 872         sfc_adapter_lock(sa);
 873
 874         SFC_ASSERT(tx_queue_id < sa->txq_count);
 875
 876         txq_info = &sa->txq_info[tx_queue_id];
 877         SFC_ASSERT(txq_info->txq != NULL);
 878
 879         memset(qinfo, 0, sizeof(*qinfo));
 880
 881         qinfo->conf.txq_flags = txq_info->txq->flags;
 882         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 883         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 884         qinfo->nb_desc = txq_info->entries;
 885
 886         sfc_adapter_unlock(sa);
 887 }
 888
 889 static uint32_t
 890 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 891 {
 892         struct sfc_adapter *sa = dev->data->dev_private;
 893
 894         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 895
 896         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 897 }
 898
 899 static int
 900 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 901 {
 902         struct sfc_rxq *rxq = queue;
 903
 904         return sfc_rx_qdesc_done(rxq, offset);
 905 }
 906
 907 static int
 908 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 909 {
 910         struct sfc_adapter *sa = dev->data->dev_private;
 911         int rc;
 912
 913         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 914
 915         sfc_adapter_lock(sa);
 916
 917         rc = EINVAL;
 918         if (sa->state != SFC_ADAPTER_STARTED)
 919                 goto fail_not_started;
 920
 921         rc = sfc_rx_qstart(sa, rx_queue_id);
 922         if (rc != 0)
 923                 goto fail_rx_qstart;
 924
 925         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
 926
 927         sfc_adapter_unlock(sa);
 928
 929         return 0;
 930
 931 fail_rx_qstart:
 932 fail_not_started:
 933         sfc_adapter_unlock(sa);
 934         SFC_ASSERT(rc > 0);
 935         return -rc;
 936 }
 937
 938 static int
 939 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 940 {
 941         struct sfc_adapter *sa = dev->data->dev_private;
 942
 943         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 944
 945         sfc_adapter_lock(sa);
 946         sfc_rx_qstop(sa, rx_queue_id);
 947
 948         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
 949
 950         sfc_adapter_unlock(sa);
 951
 952         return 0;
 953 }
 954
 955 static int
 956 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 957 {
 958         struct sfc_adapter *sa = dev->data->dev_private;
 959         int rc;
 960
 961         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
 962
 963         sfc_adapter_lock(sa);
 964
 965         rc = EINVAL;
 966         if (sa->state != SFC_ADAPTER_STARTED)
 967                 goto fail_not_started;
 968
 969         rc = sfc_tx_qstart(sa, tx_queue_id);
 970         if (rc != 0)
 971                 goto fail_tx_qstart;
 972
 973         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
 974
 975         sfc_adapter_unlock(sa);
 976         return 0;
 977
 978 fail_tx_qstart:
 979
 980 fail_not_started:
 981         sfc_adapter_unlock(sa);
 982         SFC_ASSERT(rc > 0);
 983         return -rc;
 984 }
 985
 986 static int
 987 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 988 {
 989         struct sfc_adapter *sa = dev->data->dev_private;
 990
 991         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
 992
 993         sfc_adapter_lock(sa);
 994
 995         sfc_tx_qstop(sa, tx_queue_id);
 996
 997         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
 998
 999         sfc_adapter_unlock(sa);
1000         return 0;
1001 }
1002
1003 #if EFSYS_OPT_RX_SCALE
1004 static int
1005 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1006                           struct rte_eth_rss_conf *rss_conf)
1007 {
1008         struct sfc_adapter *sa = dev->data->dev_private;
1009
1010         if ((sa->rss_channels == 1) ||
1011             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1012                 return -ENOTSUP;
1013
1014         sfc_adapter_lock(sa);
1015
1016         /*
1017          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1018          * hence, conversion is done here to derive a correct set of ETH_RSS
1019          * flags which corresponds to the active EFX configuration stored
1020          * locally in 'sfc_adapter' and kept up-to-date
1021          */
1022         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1023         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1024         if (rss_conf->rss_key != NULL)
1025                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1026
1027         sfc_adapter_unlock(sa);
1028
1029         return 0;
1030 }
1031
1032 static int
1033 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1034                         struct rte_eth_rss_conf *rss_conf)
1035 {
1036         struct sfc_adapter *sa = dev->data->dev_private;
1037         unsigned int efx_hash_types;
1038         int rc = 0;
1039
1040         if ((sa->rss_channels == 1) ||
1041             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1042                 sfc_err(sa, "RSS is not available");
1043                 return -ENOTSUP;
1044         }
1045
1046         if ((rss_conf->rss_key != NULL) &&
1047             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1048                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1049                         sizeof(sa->rss_key));
1050                 return -EINVAL;
1051         }
1052
1053         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1054                 sfc_err(sa, "unsupported hash functions requested");
1055                 return -EINVAL;
1056         }
1057
1058         sfc_adapter_lock(sa);
1059
1060         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1061
1062         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1063                                    efx_hash_types, B_TRUE);
1064         if (rc != 0)
1065                 goto fail_scale_mode_set;
1066
1067         if (rss_conf->rss_key != NULL) {
1068                 if (sa->state == SFC_ADAPTER_STARTED) {
1069                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1070                                                   sizeof(sa->rss_key));
1071                         if (rc != 0)
1072                                 goto fail_scale_key_set;
1073                 }
1074
1075                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1076         }
1077
1078         sa->rss_hash_types = efx_hash_types;
1079
1080         sfc_adapter_unlock(sa);
1081
1082         return 0;
1083
1084 fail_scale_key_set:
1085         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1086                                   sa->rss_hash_types, B_TRUE) != 0)
1087                 sfc_err(sa, "failed to restore RSS mode");
1088
1089 fail_scale_mode_set:
1090         sfc_adapter_unlock(sa);
1091         return -rc;
1092 }
1093
1094 static int
1095 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1096                        struct rte_eth_rss_reta_entry64 *reta_conf,
1097                        uint16_t reta_size)
1098 {
1099         struct sfc_adapter *sa = dev->data->dev_private;
1100         int entry;
1101
1102         if ((sa->rss_channels == 1) ||
1103             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1104                 return -ENOTSUP;
1105
1106         if (reta_size != EFX_RSS_TBL_SIZE)
1107                 return -EINVAL;
1108
1109         sfc_adapter_lock(sa);
1110
1111         for (entry = 0; entry < reta_size; entry++) {
1112                 int grp = entry / RTE_RETA_GROUP_SIZE;
1113                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1114
1115                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1116                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1117         }
1118
1119         sfc_adapter_unlock(sa);
1120
1121         return 0;
1122 }
1123
1124 static int
1125 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1126                         struct rte_eth_rss_reta_entry64 *reta_conf,
1127                         uint16_t reta_size)
1128 {
1129         struct sfc_adapter *sa = dev->data->dev_private;
1130         unsigned int *rss_tbl_new;
1131         uint16_t entry;
1132         int rc;
1133
1134
1135         if ((sa->rss_channels == 1) ||
1136             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1137                 sfc_err(sa, "RSS is not available");
1138                 return -ENOTSUP;
1139         }
1140
1141         if (reta_size != EFX_RSS_TBL_SIZE) {
1142                 sfc_err(sa, "RETA size is wrong (should be %u)",
1143                         EFX_RSS_TBL_SIZE);
1144                 return -EINVAL;
1145         }
1146
1147         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1148         if (rss_tbl_new == NULL)
1149                 return -ENOMEM;
1150
1151         sfc_adapter_lock(sa);
1152
1153         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1154
1155         for (entry = 0; entry < reta_size; entry++) {
1156                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1157                 struct rte_eth_rss_reta_entry64 *grp;
1158
1159                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1160
1161                 if (grp->mask & (1ull << grp_idx)) {
1162                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1163                                 rc = EINVAL;
1164                                 goto bad_reta_entry;
1165                         }
1166                         rss_tbl_new[entry] = grp->reta[grp_idx];
1167                 }
1168         }
1169
1170         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1171         if (rc == 0)
1172                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1173
1174 bad_reta_entry:
1175         sfc_adapter_unlock(sa);
1176
1177         rte_free(rss_tbl_new);
1178
1179         SFC_ASSERT(rc >= 0);
1180         return -rc;
1181 }
1182 #endif
1183
1184 static const struct eth_dev_ops sfc_eth_dev_ops = {
1185         .dev_configure                  = sfc_dev_configure,
1186         .dev_start                      = sfc_dev_start,
1187         .dev_stop                       = sfc_dev_stop,
1188         .dev_set_link_up                = sfc_dev_set_link_up,
1189         .dev_set_link_down              = sfc_dev_set_link_down,
1190         .dev_close                      = sfc_dev_close,
1191         .promiscuous_enable             = sfc_dev_promisc_enable,
1192         .promiscuous_disable            = sfc_dev_promisc_disable,
1193         .allmulticast_enable            = sfc_dev_allmulti_enable,
1194         .allmulticast_disable           = sfc_dev_allmulti_disable,
1195         .link_update                    = sfc_dev_link_update,
1196         .stats_get                      = sfc_stats_get,
1197         .xstats_get                     = sfc_xstats_get,
1198         .xstats_get_names               = sfc_xstats_get_names,
1199         .dev_infos_get                  = sfc_dev_infos_get,
1200         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1201         .mtu_set                        = sfc_dev_set_mtu,
1202         .rx_queue_start                 = sfc_rx_queue_start,
1203         .rx_queue_stop                  = sfc_rx_queue_stop,
1204         .tx_queue_start                 = sfc_tx_queue_start,
1205         .tx_queue_stop                  = sfc_tx_queue_stop,
1206         .rx_queue_setup                 = sfc_rx_queue_setup,
1207         .rx_queue_release               = sfc_rx_queue_release,
1208         .rx_queue_count                 = sfc_rx_queue_count,
1209         .rx_descriptor_done             = sfc_rx_descriptor_done,
1210         .tx_queue_setup                 = sfc_tx_queue_setup,
1211         .tx_queue_release               = sfc_tx_queue_release,
1212         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1213         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1214         .mac_addr_set                   = sfc_mac_addr_set,
1215 #if EFSYS_OPT_RX_SCALE
1216         .reta_update                    = sfc_dev_rss_reta_update,
1217         .reta_query                     = sfc_dev_rss_reta_query,
1218         .rss_hash_update                = sfc_dev_rss_hash_update,
1219         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1220 #endif
1221         .set_mc_addr_list               = sfc_set_mc_addr_list,
1222         .rxq_info_get                   = sfc_rx_queue_info_get,
1223         .txq_info_get                   = sfc_tx_queue_info_get,
1224 };
1225
1226 static int
1227 sfc_eth_dev_init(struct rte_eth_dev *dev)
1228 {
1229         struct sfc_adapter *sa = dev->data->dev_private;
1230         struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
1231         int rc;
1232         const efx_nic_cfg_t *encp;
1233         const struct ether_addr *from;
1234
1235         /* Required for logging */
1236         sa->eth_dev = dev;
1237
1238         /* Copy PCI device info to the dev->data */
1239         rte_eth_copy_pci_info(dev, pci_dev);
1240
1241         rc = sfc_kvargs_parse(sa);
1242         if (rc != 0)
1243                 goto fail_kvargs_parse;
1244
1245         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1246                                 sfc_kvarg_bool_handler, &sa->debug_init);
1247         if (rc != 0)
1248                 goto fail_kvarg_debug_init;
1249
1250         sfc_log_init(sa, "entry");
1251
1252         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1253         if (dev->data->mac_addrs == NULL) {
1254                 rc = ENOMEM;
1255                 goto fail_mac_addrs;
1256         }
1257
1258         sfc_adapter_lock_init(sa);
1259         sfc_adapter_lock(sa);
1260
1261         sfc_log_init(sa, "attaching");
1262         rc = sfc_attach(sa);
1263         if (rc != 0)
1264                 goto fail_attach;
1265
1266         encp = efx_nic_cfg_get(sa->nic);
1267
1268         /*
1269          * The arguments are really reverse order in comparison to
1270          * Linux kernel. Copy from NIC config to Ethernet device data.
1271          */
1272         from = (const struct ether_addr *)(encp->enc_mac_addr);
1273         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1274
1275         dev->dev_ops = &sfc_eth_dev_ops;
1276         dev->rx_pkt_burst = &sfc_recv_pkts;
1277         dev->tx_pkt_burst = &sfc_xmit_pkts;
1278
1279         sfc_adapter_unlock(sa);
1280
1281         sfc_log_init(sa, "done");
1282         return 0;
1283
1284 fail_attach:
1285         sfc_adapter_unlock(sa);
1286         sfc_adapter_lock_fini(sa);
1287         rte_free(dev->data->mac_addrs);
1288         dev->data->mac_addrs = NULL;
1289
1290 fail_mac_addrs:
1291 fail_kvarg_debug_init:
1292         sfc_kvargs_cleanup(sa);
1293
1294 fail_kvargs_parse:
1295         sfc_log_init(sa, "failed %d", rc);
1296         SFC_ASSERT(rc > 0);
1297         return -rc;
1298 }
1299
1300 static int
1301 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1302 {
1303         struct sfc_adapter *sa = dev->data->dev_private;
1304
1305         sfc_log_init(sa, "entry");
1306
1307         sfc_adapter_lock(sa);
1308
1309         sfc_detach(sa);
1310
1311         rte_free(dev->data->mac_addrs);
1312         dev->data->mac_addrs = NULL;
1313
1314         dev->dev_ops = NULL;
1315         dev->rx_pkt_burst = NULL;
1316         dev->tx_pkt_burst = NULL;
1317
1318         sfc_kvargs_cleanup(sa);
1319
1320         sfc_adapter_unlock(sa);
1321         sfc_adapter_lock_fini(sa);
1322
1323         sfc_log_init(sa, "done");
1324
1325         /* Required for logging, so cleanup last */
1326         sa->eth_dev = NULL;
1327         return 0;
1328 }
1329
1330 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1331         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1332         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1333         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1334         { .vendor_id = 0 /* sentinel */ }
1335 };
1336
1337 static struct eth_driver sfc_efx_pmd = {
1338         .pci_drv = {
1339                 .id_table = pci_id_sfc_efx_map,
1340                 .drv_flags =
1341                         RTE_PCI_DRV_INTR_LSC |
1342                         RTE_PCI_DRV_NEED_MAPPING,
1343                 .probe = rte_eth_dev_pci_probe,
1344                 .remove = rte_eth_dev_pci_remove,
1345         },
1346         .eth_dev_init = sfc_eth_dev_init,
1347         .eth_dev_uninit = sfc_eth_dev_uninit,
1348         .dev_private_size = sizeof(struct sfc_adapter),
1349 };
1350
1351 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
1352 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1353 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio");
1354 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1355         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1356         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1357         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);