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 #include "sfc_flow.h"
  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 retry:
 192         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 193         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 194
 195         if (sa->state != SFC_ADAPTER_STARTED) {
 196                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 197                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 198                                          *(uint64_t *)&old_link,
 199                                          *(uint64_t *)&current_link))
 200                         goto retry;
 201         } else if (wait_to_complete) {
 202                 efx_link_mode_t link_mode;
 203
 204                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 205                         link_mode = EFX_LINK_UNKNOWN;
 206                 sfc_port_link_mode_to_info(link_mode, &current_link);
 207
 208                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 209                                          *(uint64_t *)&old_link,
 210                                          *(uint64_t *)&current_link))
 211                         goto retry;
 212         } else {
 213                 sfc_ev_mgmt_qpoll(sa);
 214                 *(int64_t *)&current_link =
 215                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 216         }
 217
 218         if (old_link.link_status != current_link.link_status)
 219                 sfc_info(sa, "Link status is %s",
 220                          current_link.link_status ? "UP" : "DOWN");
 221
 222         return old_link.link_status == current_link.link_status ? 0 : -1;
 223 }
 224
 225 static void
 226 sfc_dev_stop(struct rte_eth_dev *dev)
 227 {
 228         struct sfc_adapter *sa = dev->data->dev_private;
 229
 230         sfc_log_init(sa, "entry");
 231
 232         sfc_adapter_lock(sa);
 233         sfc_stop(sa);
 234         sfc_adapter_unlock(sa);
 235
 236         sfc_log_init(sa, "done");
 237 }
 238
 239 static int
 240 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 241 {
 242         struct sfc_adapter *sa = dev->data->dev_private;
 243         int rc;
 244
 245         sfc_log_init(sa, "entry");
 246
 247         sfc_adapter_lock(sa);
 248         rc = sfc_start(sa);
 249         sfc_adapter_unlock(sa);
 250
 251         SFC_ASSERT(rc >= 0);
 252         return -rc;
 253 }
 254
 255 static int
 256 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 257 {
 258         struct sfc_adapter *sa = dev->data->dev_private;
 259
 260         sfc_log_init(sa, "entry");
 261
 262         sfc_adapter_lock(sa);
 263         sfc_stop(sa);
 264         sfc_adapter_unlock(sa);
 265
 266         return 0;
 267 }
 268
 269 static void
 270 sfc_dev_close(struct rte_eth_dev *dev)
 271 {
 272         struct sfc_adapter *sa = dev->data->dev_private;
 273
 274         sfc_log_init(sa, "entry");
 275
 276         sfc_adapter_lock(sa);
 277         switch (sa->state) {
 278         case SFC_ADAPTER_STARTED:
 279                 sfc_stop(sa);
 280                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 281                 /* FALLTHROUGH */
 282         case SFC_ADAPTER_CONFIGURED:
 283                 sfc_close(sa);
 284                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 285                 /* FALLTHROUGH */
 286         case SFC_ADAPTER_INITIALIZED:
 287                 break;
 288         default:
 289                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 290                 break;
 291         }
 292         sfc_adapter_unlock(sa);
 293
 294         sfc_log_init(sa, "done");
 295 }
 296
 297 static void
 298 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 299                    boolean_t enabled)
 300 {
 301         struct sfc_port *port;
 302         boolean_t *toggle;
 303         struct sfc_adapter *sa = dev->data->dev_private;
 304         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 305         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 306
 307         sfc_adapter_lock(sa);
 308
 309         port = &sa->port;
 310         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 311
 312         if (*toggle != enabled) {
 313                 *toggle = enabled;
 314
 315                 if ((sa->state == SFC_ADAPTER_STARTED) &&
 316                     (sfc_set_rx_mode(sa) != 0)) {
 317                         *toggle = !(enabled);
 318                         sfc_warn(sa, "Failed to %s %s mode",
 319                                  ((enabled) ? "enable" : "disable"), desc);
 320                 }
 321         }
 322
 323         sfc_adapter_unlock(sa);
 324 }
 325
 326 static void
 327 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 328 {
 329         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 330 }
 331
 332 static void
 333 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 334 {
 335         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 336 }
 337
 338 static void
 339 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 340 {
 341         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 342 }
 343
 344 static void
 345 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 346 {
 347         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 348 }
 349
 350 static int
 351 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 352                    uint16_t nb_rx_desc, unsigned int socket_id,
 353                    const struct rte_eth_rxconf *rx_conf,
 354                    struct rte_mempool *mb_pool)
 355 {
 356         struct sfc_adapter *sa = dev->data->dev_private;
 357         int rc;
 358
 359         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 360                      rx_queue_id, nb_rx_desc, socket_id);
 361
 362         sfc_adapter_lock(sa);
 363
 364         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 365                           rx_conf, mb_pool);
 366         if (rc != 0)
 367                 goto fail_rx_qinit;
 368
 369         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq;
 370
 371         sfc_adapter_unlock(sa);
 372
 373         return 0;
 374
 375 fail_rx_qinit:
 376         sfc_adapter_unlock(sa);
 377         SFC_ASSERT(rc > 0);
 378         return -rc;
 379 }
 380
 381 static void
 382 sfc_rx_queue_release(void *queue)
 383 {
 384         struct sfc_rxq *rxq = queue;
 385         struct sfc_adapter *sa;
 386         unsigned int sw_index;
 387
 388         if (rxq == NULL)
 389                 return;
 390
 391         sa = rxq->evq->sa;
 392         sfc_adapter_lock(sa);
 393
 394         sw_index = sfc_rxq_sw_index(rxq);
 395
 396         sfc_log_init(sa, "RxQ=%u", sw_index);
 397
 398         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 399
 400         sfc_rx_qfini(sa, sw_index);
 401
 402         sfc_adapter_unlock(sa);
 403 }
 404
 405 static int
 406 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 407                    uint16_t nb_tx_desc, unsigned int socket_id,
 408                    const struct rte_eth_txconf *tx_conf)
 409 {
 410         struct sfc_adapter *sa = dev->data->dev_private;
 411         int rc;
 412
 413         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 414                      tx_queue_id, nb_tx_desc, socket_id);
 415
 416         sfc_adapter_lock(sa);
 417
 418         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 419         if (rc != 0)
 420                 goto fail_tx_qinit;
 421
 422         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq;
 423
 424         sfc_adapter_unlock(sa);
 425         return 0;
 426
 427 fail_tx_qinit:
 428         sfc_adapter_unlock(sa);
 429         SFC_ASSERT(rc > 0);
 430         return -rc;
 431 }
 432
 433 static void
 434 sfc_tx_queue_release(void *queue)
 435 {
 436         struct sfc_txq *txq = queue;
 437         unsigned int sw_index;
 438         struct sfc_adapter *sa;
 439
 440         if (txq == NULL)
 441                 return;
 442
 443         sw_index = sfc_txq_sw_index(txq);
 444
 445         SFC_ASSERT(txq->evq != NULL);
 446         sa = txq->evq->sa;
 447
 448         sfc_log_init(sa, "TxQ = %u", sw_index);
 449
 450         sfc_adapter_lock(sa);
 451
 452         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 453         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 454
 455         sfc_tx_qfini(sa, sw_index);
 456
 457         sfc_adapter_unlock(sa);
 458 }
 459
 460 static void
 461 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 462 {
 463         struct sfc_adapter *sa = dev->data->dev_private;
 464         struct sfc_port *port = &sa->port;
 465         uint64_t *mac_stats;
 466
 467         rte_spinlock_lock(&port->mac_stats_lock);
 468
 469         if (sfc_port_update_mac_stats(sa) != 0)
 470                 goto unlock;
 471
 472         mac_stats = port->mac_stats_buf;
 473
 474         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 475                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 476                 stats->ipackets =
 477                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 478                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 479                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 480                 stats->opackets =
 481                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 482                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 483                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 484                 stats->ibytes =
 485                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 486                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 487                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 488                 stats->obytes =
 489                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 490                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 491                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 492                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 493                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 494                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 495         } else {
 496                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 497                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 498                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 499                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 500                 /*
 501                  * Take into account stats which are whenever supported
 502                  * on EF10. If some stat is not supported by current
 503                  * firmware variant or HW revision, it is guaranteed
 504                  * to be zero in mac_stats.
 505                  */
 506                 stats->imissed =
 507                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 508                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 509                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 510                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 511                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 512                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 513                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 514                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 515                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 516                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 517                 stats->ierrors =
 518                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 519                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 520                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 521                 /* no oerrors counters supported on EF10 */
 522         }
 523
 524 unlock:
 525         rte_spinlock_unlock(&port->mac_stats_lock);
 526 }
 527
 528 static void
 529 sfc_stats_reset(struct rte_eth_dev *dev)
 530 {
 531         struct sfc_adapter *sa = dev->data->dev_private;
 532         struct sfc_port *port = &sa->port;
 533         int rc;
 534
 535         if (sa->state != SFC_ADAPTER_STARTED) {
 536                 /*
 537                  * The operation cannot be done if port is not started; it
 538                  * will be scheduled to be done during the next port start
 539                  */
 540                 port->mac_stats_reset_pending = B_TRUE;
 541                 return;
 542         }
 543
 544         rc = sfc_port_reset_mac_stats(sa);
 545         if (rc != 0)
 546                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 547 }
 548
 549 static int
 550 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 551                unsigned int xstats_count)
 552 {
 553         struct sfc_adapter *sa = dev->data->dev_private;
 554         struct sfc_port *port = &sa->port;
 555         uint64_t *mac_stats;
 556         int rc;
 557         unsigned int i;
 558         int nstats = 0;
 559
 560         rte_spinlock_lock(&port->mac_stats_lock);
 561
 562         rc = sfc_port_update_mac_stats(sa);
 563         if (rc != 0) {
 564                 SFC_ASSERT(rc > 0);
 565                 nstats = -rc;
 566                 goto unlock;
 567         }
 568
 569         mac_stats = port->mac_stats_buf;
 570
 571         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 572                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 573                         if (xstats != NULL && nstats < (int)xstats_count) {
 574                                 xstats[nstats].id = nstats;
 575                                 xstats[nstats].value = mac_stats[i];
 576                         }
 577                         nstats++;
 578                 }
 579         }
 580
 581 unlock:
 582         rte_spinlock_unlock(&port->mac_stats_lock);
 583
 584         return nstats;
 585 }
 586
 587 static int
 588 sfc_xstats_get_names(struct rte_eth_dev *dev,
 589                      struct rte_eth_xstat_name *xstats_names,
 590                      unsigned int xstats_count)
 591 {
 592         struct sfc_adapter *sa = dev->data->dev_private;
 593         struct sfc_port *port = &sa->port;
 594         unsigned int i;
 595         unsigned int nstats = 0;
 596
 597         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 598                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 599                         if (xstats_names != NULL && nstats < xstats_count)
 600                                 strncpy(xstats_names[nstats].name,
 601                                         efx_mac_stat_name(sa->nic, i),
 602                                         sizeof(xstats_names[0].name));
 603                         nstats++;
 604                 }
 605         }
 606
 607         return nstats;
 608 }
 609
 610 static int
 611 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 612 {
 613         struct sfc_adapter *sa = dev->data->dev_private;
 614         unsigned int wanted_fc, link_fc;
 615
 616         memset(fc_conf, 0, sizeof(*fc_conf));
 617
 618         sfc_adapter_lock(sa);
 619
 620         if (sa->state == SFC_ADAPTER_STARTED)
 621                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 622         else
 623                 link_fc = sa->port.flow_ctrl;
 624
 625         switch (link_fc) {
 626         case 0:
 627                 fc_conf->mode = RTE_FC_NONE;
 628                 break;
 629         case EFX_FCNTL_RESPOND:
 630                 fc_conf->mode = RTE_FC_RX_PAUSE;
 631                 break;
 632         case EFX_FCNTL_GENERATE:
 633                 fc_conf->mode = RTE_FC_TX_PAUSE;
 634                 break;
 635         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 636                 fc_conf->mode = RTE_FC_FULL;
 637                 break;
 638         default:
 639                 sfc_err(sa, "%s: unexpected flow control value %#x",
 640                         __func__, link_fc);
 641         }
 642
 643         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 644
 645         sfc_adapter_unlock(sa);
 646
 647         return 0;
 648 }
 649
 650 static int
 651 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 652 {
 653         struct sfc_adapter *sa = dev->data->dev_private;
 654         struct sfc_port *port = &sa->port;
 655         unsigned int fcntl;
 656         int rc;
 657
 658         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 659             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 660             fc_conf->mac_ctrl_frame_fwd != 0) {
 661                 sfc_err(sa, "unsupported flow control settings specified");
 662                 rc = EINVAL;
 663                 goto fail_inval;
 664         }
 665
 666         switch (fc_conf->mode) {
 667         case RTE_FC_NONE:
 668                 fcntl = 0;
 669                 break;
 670         case RTE_FC_RX_PAUSE:
 671                 fcntl = EFX_FCNTL_RESPOND;
 672                 break;
 673         case RTE_FC_TX_PAUSE:
 674                 fcntl = EFX_FCNTL_GENERATE;
 675                 break;
 676         case RTE_FC_FULL:
 677                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 678                 break;
 679         default:
 680                 rc = EINVAL;
 681                 goto fail_inval;
 682         }
 683
 684         sfc_adapter_lock(sa);
 685
 686         if (sa->state == SFC_ADAPTER_STARTED) {
 687                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 688                 if (rc != 0)
 689                         goto fail_mac_fcntl_set;
 690         }
 691
 692         port->flow_ctrl = fcntl;
 693         port->flow_ctrl_autoneg = fc_conf->autoneg;
 694
 695         sfc_adapter_unlock(sa);
 696
 697         return 0;
 698
 699 fail_mac_fcntl_set:
 700         sfc_adapter_unlock(sa);
 701 fail_inval:
 702         SFC_ASSERT(rc > 0);
 703         return -rc;
 704 }
 705
 706 static int
 707 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 708 {
 709         struct sfc_adapter *sa = dev->data->dev_private;
 710         size_t pdu = EFX_MAC_PDU(mtu);
 711         size_t old_pdu;
 712         int rc;
 713
 714         sfc_log_init(sa, "mtu=%u", mtu);
 715
 716         rc = EINVAL;
 717         if (pdu < EFX_MAC_PDU_MIN) {
 718                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 719                         (unsigned int)mtu, (unsigned int)pdu,
 720                         EFX_MAC_PDU_MIN);
 721                 goto fail_inval;
 722         }
 723         if (pdu > EFX_MAC_PDU_MAX) {
 724                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 725                         (unsigned int)mtu, (unsigned int)pdu,
 726                         EFX_MAC_PDU_MAX);
 727                 goto fail_inval;
 728         }
 729
 730         sfc_adapter_lock(sa);
 731
 732         if (pdu != sa->port.pdu) {
 733                 if (sa->state == SFC_ADAPTER_STARTED) {
 734                         sfc_stop(sa);
 735
 736                         old_pdu = sa->port.pdu;
 737                         sa->port.pdu = pdu;
 738                         rc = sfc_start(sa);
 739                         if (rc != 0)
 740                                 goto fail_start;
 741                 } else {
 742                         sa->port.pdu = pdu;
 743                 }
 744         }
 745
 746         /*
 747          * The driver does not use it, but other PMDs update jumbo_frame
 748          * flag and max_rx_pkt_len when MTU is set.
 749          */
 750         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 751         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 752
 753         sfc_adapter_unlock(sa);
 754
 755         sfc_log_init(sa, "done");
 756         return 0;
 757
 758 fail_start:
 759         sa->port.pdu = old_pdu;
 760         if (sfc_start(sa) != 0)
 761                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 762                         "PDU max size - port is stopped",
 763                         (unsigned int)pdu, (unsigned int)old_pdu);
 764         sfc_adapter_unlock(sa);
 765
 766 fail_inval:
 767         sfc_log_init(sa, "failed %d", rc);
 768         SFC_ASSERT(rc > 0);
 769         return -rc;
 770 }
 771 static void
 772 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 773 {
 774         struct sfc_adapter *sa = dev->data->dev_private;
 775         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 776         int rc;
 777
 778         sfc_adapter_lock(sa);
 779
 780         if (sa->state != SFC_ADAPTER_STARTED) {
 781                 sfc_info(sa, "the port is not started");
 782                 sfc_info(sa, "the new MAC address will be set on port start");
 783
 784                 goto unlock;
 785         }
 786
 787         if (encp->enc_allow_set_mac_with_installed_filters) {
 788                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 789                 if (rc != 0) {
 790                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 791                         goto unlock;
 792                 }
 793
 794                 /*
 795                  * Changing the MAC address by means of MCDI request
 796                  * has no effect on received traffic, therefore
 797                  * we also need to update unicast filters
 798                  */
 799                 rc = sfc_set_rx_mode(sa);
 800                 if (rc != 0)
 801                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 802         } else {
 803                 sfc_warn(sa, "cannot set MAC address with filters installed");
 804                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 805                 sfc_warn(sa, "(some traffic may be dropped)");
 806
 807                 /*
 808                  * Since setting MAC address with filters installed is not
 809                  * allowed on the adapter, one needs to simply restart adapter
 810                  * so that the new MAC address will be taken from an outer
 811                  * storage and set flawlessly by means of sfc_start() call
 812                  */
 813                 sfc_stop(sa);
 814                 rc = sfc_start(sa);
 815                 if (rc != 0)
 816                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 817         }
 818
 819 unlock:
 820         sfc_adapter_unlock(sa);
 821 }
 822
 823
 824 static int
 825 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 826                      uint32_t nb_mc_addr)
 827 {
 828         struct sfc_adapter *sa = dev->data->dev_private;
 829         uint8_t *mc_addrs_p = NULL;
 830         int rc;
 831         unsigned int i;
 832
 833         if (nb_mc_addr > EFX_MAC_MULTICAST_LIST_MAX) {
 834                 sfc_err(sa, "too many multicast addresses: %u > %u",
 835                          nb_mc_addr, EFX_MAC_MULTICAST_LIST_MAX);
 836                 return -EINVAL;
 837         }
 838
 839         if (nb_mc_addr != 0) {
 840                 uint8_t *mc_addrs;
 841
 842                 mc_addrs_p = rte_calloc("mc-addrs", nb_mc_addr,
 843                                         EFX_MAC_ADDR_LEN, 0);
 844                 if (mc_addrs_p == NULL)
 845                         return -ENOMEM;
 846
 847                 mc_addrs = mc_addrs_p;
 848                 for (i = 0; i < nb_mc_addr; ++i) {
 849                         (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 850                                          EFX_MAC_ADDR_LEN);
 851                         mc_addrs += EFX_MAC_ADDR_LEN;
 852                 }
 853         }
 854
 855         rc = efx_mac_multicast_list_set(sa->nic, mc_addrs_p, nb_mc_addr);
 856
 857         rte_free(mc_addrs_p);
 858
 859         if (rc != 0)
 860                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 861
 862         SFC_ASSERT(rc > 0);
 863         return -rc;
 864 }
 865
 866 static void
 867 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 868                       struct rte_eth_rxq_info *qinfo)
 869 {
 870         struct sfc_adapter *sa = dev->data->dev_private;
 871         struct sfc_rxq_info *rxq_info;
 872         struct sfc_rxq *rxq;
 873
 874         sfc_adapter_lock(sa);
 875
 876         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 877
 878         rxq_info = &sa->rxq_info[rx_queue_id];
 879         rxq = rxq_info->rxq;
 880         SFC_ASSERT(rxq != NULL);
 881
 882         qinfo->mp = rxq->refill_mb_pool;
 883         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 884         qinfo->conf.rx_drop_en = 1;
 885         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 886         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 887         qinfo->nb_desc = rxq_info->entries;
 888
 889         sfc_adapter_unlock(sa);
 890 }
 891
 892 static void
 893 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 894                       struct rte_eth_txq_info *qinfo)
 895 {
 896         struct sfc_adapter *sa = dev->data->dev_private;
 897         struct sfc_txq_info *txq_info;
 898
 899         sfc_adapter_lock(sa);
 900
 901         SFC_ASSERT(tx_queue_id < sa->txq_count);
 902
 903         txq_info = &sa->txq_info[tx_queue_id];
 904         SFC_ASSERT(txq_info->txq != NULL);
 905
 906         memset(qinfo, 0, sizeof(*qinfo));
 907
 908         qinfo->conf.txq_flags = txq_info->txq->flags;
 909         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 910         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 911         qinfo->nb_desc = txq_info->entries;
 912
 913         sfc_adapter_unlock(sa);
 914 }
 915
 916 static uint32_t
 917 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 918 {
 919         struct sfc_adapter *sa = dev->data->dev_private;
 920
 921         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 922
 923         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 924 }
 925
 926 static int
 927 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 928 {
 929         struct sfc_rxq *rxq = queue;
 930
 931         return sfc_rx_qdesc_done(rxq, offset);
 932 }
 933
 934 static int
 935 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 936 {
 937         struct sfc_adapter *sa = dev->data->dev_private;
 938         int rc;
 939
 940         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 941
 942         sfc_adapter_lock(sa);
 943
 944         rc = EINVAL;
 945         if (sa->state != SFC_ADAPTER_STARTED)
 946                 goto fail_not_started;
 947
 948         rc = sfc_rx_qstart(sa, rx_queue_id);
 949         if (rc != 0)
 950                 goto fail_rx_qstart;
 951
 952         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
 953
 954         sfc_adapter_unlock(sa);
 955
 956         return 0;
 957
 958 fail_rx_qstart:
 959 fail_not_started:
 960         sfc_adapter_unlock(sa);
 961         SFC_ASSERT(rc > 0);
 962         return -rc;
 963 }
 964
 965 static int
 966 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 967 {
 968         struct sfc_adapter *sa = dev->data->dev_private;
 969
 970         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 971
 972         sfc_adapter_lock(sa);
 973         sfc_rx_qstop(sa, rx_queue_id);
 974
 975         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
 976
 977         sfc_adapter_unlock(sa);
 978
 979         return 0;
 980 }
 981
 982 static int
 983 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 984 {
 985         struct sfc_adapter *sa = dev->data->dev_private;
 986         int rc;
 987
 988         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
 989
 990         sfc_adapter_lock(sa);
 991
 992         rc = EINVAL;
 993         if (sa->state != SFC_ADAPTER_STARTED)
 994                 goto fail_not_started;
 995
 996         rc = sfc_tx_qstart(sa, tx_queue_id);
 997         if (rc != 0)
 998                 goto fail_tx_qstart;
 999
1000         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1001
1002         sfc_adapter_unlock(sa);
1003         return 0;
1004
1005 fail_tx_qstart:
1006
1007 fail_not_started:
1008         sfc_adapter_unlock(sa);
1009         SFC_ASSERT(rc > 0);
1010         return -rc;
1011 }
1012
1013 static int
1014 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1015 {
1016         struct sfc_adapter *sa = dev->data->dev_private;
1017
1018         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1019
1020         sfc_adapter_lock(sa);
1021
1022         sfc_tx_qstop(sa, tx_queue_id);
1023
1024         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1025
1026         sfc_adapter_unlock(sa);
1027         return 0;
1028 }
1029
1030 #if EFSYS_OPT_RX_SCALE
1031 static int
1032 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1033                           struct rte_eth_rss_conf *rss_conf)
1034 {
1035         struct sfc_adapter *sa = dev->data->dev_private;
1036
1037         if ((sa->rss_channels == 1) ||
1038             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1039                 return -ENOTSUP;
1040
1041         sfc_adapter_lock(sa);
1042
1043         /*
1044          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1045          * hence, conversion is done here to derive a correct set of ETH_RSS
1046          * flags which corresponds to the active EFX configuration stored
1047          * locally in 'sfc_adapter' and kept up-to-date
1048          */
1049         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1050         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1051         if (rss_conf->rss_key != NULL)
1052                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1053
1054         sfc_adapter_unlock(sa);
1055
1056         return 0;
1057 }
1058
1059 static int
1060 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1061                         struct rte_eth_rss_conf *rss_conf)
1062 {
1063         struct sfc_adapter *sa = dev->data->dev_private;
1064         unsigned int efx_hash_types;
1065         int rc = 0;
1066
1067         if ((sa->rss_channels == 1) ||
1068             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1069                 sfc_err(sa, "RSS is not available");
1070                 return -ENOTSUP;
1071         }
1072
1073         if ((rss_conf->rss_key != NULL) &&
1074             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1075                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1076                         sizeof(sa->rss_key));
1077                 return -EINVAL;
1078         }
1079
1080         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1081                 sfc_err(sa, "unsupported hash functions requested");
1082                 return -EINVAL;
1083         }
1084
1085         sfc_adapter_lock(sa);
1086
1087         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1088
1089         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1090                                    efx_hash_types, B_TRUE);
1091         if (rc != 0)
1092                 goto fail_scale_mode_set;
1093
1094         if (rss_conf->rss_key != NULL) {
1095                 if (sa->state == SFC_ADAPTER_STARTED) {
1096                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1097                                                   sizeof(sa->rss_key));
1098                         if (rc != 0)
1099                                 goto fail_scale_key_set;
1100                 }
1101
1102                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1103         }
1104
1105         sa->rss_hash_types = efx_hash_types;
1106
1107         sfc_adapter_unlock(sa);
1108
1109         return 0;
1110
1111 fail_scale_key_set:
1112         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1113                                   sa->rss_hash_types, B_TRUE) != 0)
1114                 sfc_err(sa, "failed to restore RSS mode");
1115
1116 fail_scale_mode_set:
1117         sfc_adapter_unlock(sa);
1118         return -rc;
1119 }
1120
1121 static int
1122 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1123                        struct rte_eth_rss_reta_entry64 *reta_conf,
1124                        uint16_t reta_size)
1125 {
1126         struct sfc_adapter *sa = dev->data->dev_private;
1127         int entry;
1128
1129         if ((sa->rss_channels == 1) ||
1130             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1131                 return -ENOTSUP;
1132
1133         if (reta_size != EFX_RSS_TBL_SIZE)
1134                 return -EINVAL;
1135
1136         sfc_adapter_lock(sa);
1137
1138         for (entry = 0; entry < reta_size; entry++) {
1139                 int grp = entry / RTE_RETA_GROUP_SIZE;
1140                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1141
1142                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1143                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1144         }
1145
1146         sfc_adapter_unlock(sa);
1147
1148         return 0;
1149 }
1150
1151 static int
1152 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1153                         struct rte_eth_rss_reta_entry64 *reta_conf,
1154                         uint16_t reta_size)
1155 {
1156         struct sfc_adapter *sa = dev->data->dev_private;
1157         unsigned int *rss_tbl_new;
1158         uint16_t entry;
1159         int rc;
1160
1161
1162         if ((sa->rss_channels == 1) ||
1163             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1164                 sfc_err(sa, "RSS is not available");
1165                 return -ENOTSUP;
1166         }
1167
1168         if (reta_size != EFX_RSS_TBL_SIZE) {
1169                 sfc_err(sa, "RETA size is wrong (should be %u)",
1170                         EFX_RSS_TBL_SIZE);
1171                 return -EINVAL;
1172         }
1173
1174         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1175         if (rss_tbl_new == NULL)
1176                 return -ENOMEM;
1177
1178         sfc_adapter_lock(sa);
1179
1180         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1181
1182         for (entry = 0; entry < reta_size; entry++) {
1183                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1184                 struct rte_eth_rss_reta_entry64 *grp;
1185
1186                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1187
1188                 if (grp->mask & (1ull << grp_idx)) {
1189                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1190                                 rc = EINVAL;
1191                                 goto bad_reta_entry;
1192                         }
1193                         rss_tbl_new[entry] = grp->reta[grp_idx];
1194                 }
1195         }
1196
1197         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1198         if (rc == 0)
1199                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1200
1201 bad_reta_entry:
1202         sfc_adapter_unlock(sa);
1203
1204         rte_free(rss_tbl_new);
1205
1206         SFC_ASSERT(rc >= 0);
1207         return -rc;
1208 }
1209 #endif
1210
1211 static int
1212 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1213                     enum rte_filter_op filter_op,
1214                     void *arg)
1215 {
1216         struct sfc_adapter *sa = dev->data->dev_private;
1217         int rc = ENOTSUP;
1218
1219         sfc_log_init(sa, "entry");
1220
1221         switch (filter_type) {
1222         case RTE_ETH_FILTER_NONE:
1223                 sfc_err(sa, "Global filters configuration not supported");
1224                 break;
1225         case RTE_ETH_FILTER_MACVLAN:
1226                 sfc_err(sa, "MACVLAN filters not supported");
1227                 break;
1228         case RTE_ETH_FILTER_ETHERTYPE:
1229                 sfc_err(sa, "EtherType filters not supported");
1230                 break;
1231         case RTE_ETH_FILTER_FLEXIBLE:
1232                 sfc_err(sa, "Flexible filters not supported");
1233                 break;
1234         case RTE_ETH_FILTER_SYN:
1235                 sfc_err(sa, "SYN filters not supported");
1236                 break;
1237         case RTE_ETH_FILTER_NTUPLE:
1238                 sfc_err(sa, "NTUPLE filters not supported");
1239                 break;
1240         case RTE_ETH_FILTER_TUNNEL:
1241                 sfc_err(sa, "Tunnel filters not supported");
1242                 break;
1243         case RTE_ETH_FILTER_FDIR:
1244                 sfc_err(sa, "Flow Director filters not supported");
1245                 break;
1246         case RTE_ETH_FILTER_HASH:
1247                 sfc_err(sa, "Hash filters not supported");
1248                 break;
1249         case RTE_ETH_FILTER_GENERIC:
1250                 if (filter_op != RTE_ETH_FILTER_GET) {
1251                         rc = EINVAL;
1252                 } else {
1253                         *(const void **)arg = &sfc_flow_ops;
1254                         rc = 0;
1255                 }
1256                 break;
1257         default:
1258                 sfc_err(sa, "Unknown filter type %u", filter_type);
1259                 break;
1260         }
1261
1262         sfc_log_init(sa, "exit: %d", -rc);
1263         SFC_ASSERT(rc >= 0);
1264         return -rc;
1265 }
1266
1267 static const struct eth_dev_ops sfc_eth_dev_ops = {
1268         .dev_configure                  = sfc_dev_configure,
1269         .dev_start                      = sfc_dev_start,
1270         .dev_stop                       = sfc_dev_stop,
1271         .dev_set_link_up                = sfc_dev_set_link_up,
1272         .dev_set_link_down              = sfc_dev_set_link_down,
1273         .dev_close                      = sfc_dev_close,
1274         .promiscuous_enable             = sfc_dev_promisc_enable,
1275         .promiscuous_disable            = sfc_dev_promisc_disable,
1276         .allmulticast_enable            = sfc_dev_allmulti_enable,
1277         .allmulticast_disable           = sfc_dev_allmulti_disable,
1278         .link_update                    = sfc_dev_link_update,
1279         .stats_get                      = sfc_stats_get,
1280         .stats_reset                    = sfc_stats_reset,
1281         .xstats_get                     = sfc_xstats_get,
1282         .xstats_reset                   = sfc_stats_reset,
1283         .xstats_get_names               = sfc_xstats_get_names,
1284         .dev_infos_get                  = sfc_dev_infos_get,
1285         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1286         .mtu_set                        = sfc_dev_set_mtu,
1287         .rx_queue_start                 = sfc_rx_queue_start,
1288         .rx_queue_stop                  = sfc_rx_queue_stop,
1289         .tx_queue_start                 = sfc_tx_queue_start,
1290         .tx_queue_stop                  = sfc_tx_queue_stop,
1291         .rx_queue_setup                 = sfc_rx_queue_setup,
1292         .rx_queue_release               = sfc_rx_queue_release,
1293         .rx_queue_count                 = sfc_rx_queue_count,
1294         .rx_descriptor_done             = sfc_rx_descriptor_done,
1295         .tx_queue_setup                 = sfc_tx_queue_setup,
1296         .tx_queue_release               = sfc_tx_queue_release,
1297         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1298         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1299         .mac_addr_set                   = sfc_mac_addr_set,
1300 #if EFSYS_OPT_RX_SCALE
1301         .reta_update                    = sfc_dev_rss_reta_update,
1302         .reta_query                     = sfc_dev_rss_reta_query,
1303         .rss_hash_update                = sfc_dev_rss_hash_update,
1304         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1305 #endif
1306         .filter_ctrl                    = sfc_dev_filter_ctrl,
1307         .set_mc_addr_list               = sfc_set_mc_addr_list,
1308         .rxq_info_get                   = sfc_rx_queue_info_get,
1309         .txq_info_get                   = sfc_tx_queue_info_get,
1310 };
1311
1312 static int
1313 sfc_eth_dev_init(struct rte_eth_dev *dev)
1314 {
1315         struct sfc_adapter *sa = dev->data->dev_private;
1316         struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
1317         int rc;
1318         const efx_nic_cfg_t *encp;
1319         const struct ether_addr *from;
1320
1321         /* Required for logging */
1322         sa->eth_dev = dev;
1323
1324         /* Copy PCI device info to the dev->data */
1325         rte_eth_copy_pci_info(dev, pci_dev);
1326
1327         rc = sfc_kvargs_parse(sa);
1328         if (rc != 0)
1329                 goto fail_kvargs_parse;
1330
1331         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1332                                 sfc_kvarg_bool_handler, &sa->debug_init);
1333         if (rc != 0)
1334                 goto fail_kvarg_debug_init;
1335
1336         sfc_log_init(sa, "entry");
1337
1338         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1339         if (dev->data->mac_addrs == NULL) {
1340                 rc = ENOMEM;
1341                 goto fail_mac_addrs;
1342         }
1343
1344         sfc_adapter_lock_init(sa);
1345         sfc_adapter_lock(sa);
1346
1347         sfc_log_init(sa, "attaching");
1348         rc = sfc_attach(sa);
1349         if (rc != 0)
1350                 goto fail_attach;
1351
1352         encp = efx_nic_cfg_get(sa->nic);
1353
1354         /*
1355          * The arguments are really reverse order in comparison to
1356          * Linux kernel. Copy from NIC config to Ethernet device data.
1357          */
1358         from = (const struct ether_addr *)(encp->enc_mac_addr);
1359         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1360
1361         dev->dev_ops = &sfc_eth_dev_ops;
1362         dev->rx_pkt_burst = &sfc_recv_pkts;
1363         dev->tx_pkt_burst = &sfc_xmit_pkts;
1364
1365         sfc_adapter_unlock(sa);
1366
1367         sfc_log_init(sa, "done");
1368         return 0;
1369
1370 fail_attach:
1371         sfc_adapter_unlock(sa);
1372         sfc_adapter_lock_fini(sa);
1373         rte_free(dev->data->mac_addrs);
1374         dev->data->mac_addrs = NULL;
1375
1376 fail_mac_addrs:
1377 fail_kvarg_debug_init:
1378         sfc_kvargs_cleanup(sa);
1379
1380 fail_kvargs_parse:
1381         sfc_log_init(sa, "failed %d", rc);
1382         SFC_ASSERT(rc > 0);
1383         return -rc;
1384 }
1385
1386 static int
1387 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1388 {
1389         struct sfc_adapter *sa = dev->data->dev_private;
1390
1391         sfc_log_init(sa, "entry");
1392
1393         sfc_adapter_lock(sa);
1394
1395         sfc_detach(sa);
1396
1397         rte_free(dev->data->mac_addrs);
1398         dev->data->mac_addrs = NULL;
1399
1400         dev->dev_ops = NULL;
1401         dev->rx_pkt_burst = NULL;
1402         dev->tx_pkt_burst = NULL;
1403
1404         sfc_kvargs_cleanup(sa);
1405
1406         sfc_adapter_unlock(sa);
1407         sfc_adapter_lock_fini(sa);
1408
1409         sfc_log_init(sa, "done");
1410
1411         /* Required for logging, so cleanup last */
1412         sa->eth_dev = NULL;
1413         return 0;
1414 }
1415
1416 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1417         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1418         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1419         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1420         { .vendor_id = 0 /* sentinel */ }
1421 };
1422
1423 static struct eth_driver sfc_efx_pmd = {
1424         .pci_drv = {
1425                 .id_table = pci_id_sfc_efx_map,
1426                 .drv_flags =
1427                         RTE_PCI_DRV_INTR_LSC |
1428                         RTE_PCI_DRV_NEED_MAPPING,
1429                 .probe = rte_eth_dev_pci_probe,
1430                 .remove = rte_eth_dev_pci_remove,
1431         },
1432         .eth_dev_init = sfc_eth_dev_init,
1433         .eth_dev_uninit = sfc_eth_dev_uninit,
1434         .dev_private_size = sizeof(struct sfc_adapter),
1435 };
1436
1437 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
1438 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1439 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio");
1440 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1441         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1442         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1443         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);