drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2016-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <rte_dev.h>
  11 #include <rte_ethdev_driver.h>
  12 #include <rte_ethdev_pci.h>
  13 #include <rte_pci.h>
  14 #include <rte_bus_pci.h>
  15 #include <rte_errno.h>
  16
  17 #include "efx.h"
  18
  19 #include "sfc.h"
  20 #include "sfc_debug.h"
  21 #include "sfc_log.h"
  22 #include "sfc_kvargs.h"
  23 #include "sfc_ev.h"
  24 #include "sfc_rx.h"
  25 #include "sfc_tx.h"
  26 #include "sfc_flow.h"
  27 #include "sfc_dp.h"
  28 #include "sfc_dp_rx.h"
  29
  30 uint32_t sfc_logtype_driver;
  31
  32 static struct sfc_dp_list sfc_dp_head =
  33         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  34
  35 static int
  36 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  37 {
  38         struct sfc_adapter *sa = dev->data->dev_private;
  39         efx_nic_fw_info_t enfi;
  40         int ret;
  41         int rc;
  42
  43         /*
  44          * Return value of the callback is likely supposed to be
  45          * equal to or greater than 0, nevertheless, if an error
  46          * occurs, it will be desirable to pass it to the caller
  47          */
  48         if ((fw_version == NULL) || (fw_size == 0))
  49                 return -EINVAL;
  50
  51         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  52         if (rc != 0)
  53                 return -rc;
  54
  55         ret = snprintf(fw_version, fw_size,
  56                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  57                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  58                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  59         if (ret < 0)
  60                 return ret;
  61
  62         if (enfi.enfi_dpcpu_fw_ids_valid) {
  63                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  64                 int ret_extra;
  65
  66                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  67                                      fw_size - dpcpu_fw_ids_offset,
  68                                      " rx%" PRIx16 " tx%" PRIx16,
  69                                      enfi.enfi_rx_dpcpu_fw_id,
  70                                      enfi.enfi_tx_dpcpu_fw_id);
  71                 if (ret_extra < 0)
  72                         return ret_extra;
  73
  74                 ret += ret_extra;
  75         }
  76
  77         if (fw_size < (size_t)(++ret))
  78                 return ret;
  79         else
  80                 return 0;
  81 }
  82
  83 static void
  84 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  85 {
  86         struct sfc_adapter *sa = dev->data->dev_private;
  87         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  88         uint64_t txq_offloads_def = 0;
  89
  90         sfc_log_init(sa, "entry");
  91
  92         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
  93
  94         /* Autonegotiation may be disabled */
  95         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
  96         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
  97                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
  98         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
  99                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 100         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_25000FDX)
 101                 dev_info->speed_capa |= ETH_LINK_SPEED_25G;
 102         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 103                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 104         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_50000FDX)
 105                 dev_info->speed_capa |= ETH_LINK_SPEED_50G;
 106         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_100000FDX)
 107                 dev_info->speed_capa |= ETH_LINK_SPEED_100G;
 108
 109         dev_info->max_rx_queues = sa->rxq_max;
 110         dev_info->max_tx_queues = sa->txq_max;
 111
 112         /* By default packets are dropped if no descriptors are available */
 113         dev_info->default_rxconf.rx_drop_en = 1;
 114
 115         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 116
 117         /*
 118          * rx_offload_capa includes both device and queue offloads since
 119          * the latter may be requested on a per device basis which makes
 120          * sense when some offloads are needed to be set on all queues.
 121          */
 122         dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 123                                     dev_info->rx_queue_offload_capa;
 124
 125         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 126
 127         /*
 128          * tx_offload_capa includes both device and queue offloads since
 129          * the latter may be requested on a per device basis which makes
 130          * sense when some offloads are needed to be set on all queues.
 131          */
 132         dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 133                                     dev_info->tx_queue_offload_capa;
 134
 135         if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 136                 txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 137
 138         dev_info->default_txconf.offloads |= txq_offloads_def;
 139
 140         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 141         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 142             !encp->enc_hw_tx_insert_vlan_enabled)
 143                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 144
 145         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 146                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 147
 148         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
 149                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
 150
 151         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
 152                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
 153
 154         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 155                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 156                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 157                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 158         }
 159
 160         /* Initialize to hardware limits */
 161         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 162         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 163         /* The RXQ hardware requires that the descriptor count is a power
 164          * of 2, but rx_desc_lim cannot properly describe that constraint.
 165          */
 166         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 167
 168         /* Initialize to hardware limits */
 169         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 170         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 171         /*
 172          * The TXQ hardware requires that the descriptor count is a power
 173          * of 2, but tx_desc_lim cannot properly describe that constraint
 174          */
 175         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 176
 177         if (sa->dp_rx->get_dev_info != NULL)
 178                 sa->dp_rx->get_dev_info(dev_info);
 179         if (sa->dp_tx->get_dev_info != NULL)
 180                 sa->dp_tx->get_dev_info(dev_info);
 181 }
 182
 183 static const uint32_t *
 184 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 185 {
 186         struct sfc_adapter *sa = dev->data->dev_private;
 187         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 188         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 189
 190         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 191 }
 192
 193 static int
 194 sfc_dev_configure(struct rte_eth_dev *dev)
 195 {
 196         struct rte_eth_dev_data *dev_data = dev->data;
 197         struct sfc_adapter *sa = dev_data->dev_private;
 198         int rc;
 199
 200         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 201                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 202
 203         sfc_adapter_lock(sa);
 204         switch (sa->state) {
 205         case SFC_ADAPTER_CONFIGURED:
 206                 /* FALLTHROUGH */
 207         case SFC_ADAPTER_INITIALIZED:
 208                 rc = sfc_configure(sa);
 209                 break;
 210         default:
 211                 sfc_err(sa, "unexpected adapter state %u to configure",
 212                         sa->state);
 213                 rc = EINVAL;
 214                 break;
 215         }
 216         sfc_adapter_unlock(sa);
 217
 218         sfc_log_init(sa, "done %d", rc);
 219         SFC_ASSERT(rc >= 0);
 220         return -rc;
 221 }
 222
 223 static int
 224 sfc_dev_start(struct rte_eth_dev *dev)
 225 {
 226         struct sfc_adapter *sa = dev->data->dev_private;
 227         int rc;
 228
 229         sfc_log_init(sa, "entry");
 230
 231         sfc_adapter_lock(sa);
 232         rc = sfc_start(sa);
 233         sfc_adapter_unlock(sa);
 234
 235         sfc_log_init(sa, "done %d", rc);
 236         SFC_ASSERT(rc >= 0);
 237         return -rc;
 238 }
 239
 240 static int
 241 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 242 {
 243         struct sfc_adapter *sa = dev->data->dev_private;
 244         struct rte_eth_link current_link;
 245         int ret;
 246
 247         sfc_log_init(sa, "entry");
 248
 249         if (sa->state != SFC_ADAPTER_STARTED) {
 250                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 251         } else if (wait_to_complete) {
 252                 efx_link_mode_t link_mode;
 253
 254                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 255                         link_mode = EFX_LINK_UNKNOWN;
 256                 sfc_port_link_mode_to_info(link_mode, &current_link);
 257
 258         } else {
 259                 sfc_ev_mgmt_qpoll(sa);
 260                 rte_eth_linkstatus_get(dev, &current_link);
 261         }
 262
 263         ret = rte_eth_linkstatus_set(dev, &current_link);
 264         if (ret == 0)
 265                 sfc_notice(sa, "Link status is %s",
 266                            current_link.link_status ? "UP" : "DOWN");
 267
 268         return ret;
 269 }
 270
 271 static void
 272 sfc_dev_stop(struct rte_eth_dev *dev)
 273 {
 274         struct sfc_adapter *sa = dev->data->dev_private;
 275
 276         sfc_log_init(sa, "entry");
 277
 278         sfc_adapter_lock(sa);
 279         sfc_stop(sa);
 280         sfc_adapter_unlock(sa);
 281
 282         sfc_log_init(sa, "done");
 283 }
 284
 285 static int
 286 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 287 {
 288         struct sfc_adapter *sa = dev->data->dev_private;
 289         int rc;
 290
 291         sfc_log_init(sa, "entry");
 292
 293         sfc_adapter_lock(sa);
 294         rc = sfc_start(sa);
 295         sfc_adapter_unlock(sa);
 296
 297         SFC_ASSERT(rc >= 0);
 298         return -rc;
 299 }
 300
 301 static int
 302 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 303 {
 304         struct sfc_adapter *sa = dev->data->dev_private;
 305
 306         sfc_log_init(sa, "entry");
 307
 308         sfc_adapter_lock(sa);
 309         sfc_stop(sa);
 310         sfc_adapter_unlock(sa);
 311
 312         return 0;
 313 }
 314
 315 static void
 316 sfc_dev_close(struct rte_eth_dev *dev)
 317 {
 318         struct sfc_adapter *sa = dev->data->dev_private;
 319
 320         sfc_log_init(sa, "entry");
 321
 322         sfc_adapter_lock(sa);
 323         switch (sa->state) {
 324         case SFC_ADAPTER_STARTED:
 325                 sfc_stop(sa);
 326                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 327                 /* FALLTHROUGH */
 328         case SFC_ADAPTER_CONFIGURED:
 329                 sfc_close(sa);
 330                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 331                 /* FALLTHROUGH */
 332         case SFC_ADAPTER_INITIALIZED:
 333                 break;
 334         default:
 335                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 336                 break;
 337         }
 338         sfc_adapter_unlock(sa);
 339
 340         sfc_log_init(sa, "done");
 341 }
 342
 343 static void
 344 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 345                    boolean_t enabled)
 346 {
 347         struct sfc_port *port;
 348         boolean_t *toggle;
 349         struct sfc_adapter *sa = dev->data->dev_private;
 350         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 351         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 352
 353         sfc_adapter_lock(sa);
 354
 355         port = &sa->port;
 356         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 357
 358         if (*toggle != enabled) {
 359                 *toggle = enabled;
 360
 361                 if (port->isolated) {
 362                         sfc_warn(sa, "isolated mode is active on the port");
 363                         sfc_warn(sa, "the change is to be applied on the next "
 364                                      "start provided that isolated mode is "
 365                                      "disabled prior the next start");
 366                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 367                            (sfc_set_rx_mode(sa) != 0)) {
 368                         *toggle = !(enabled);
 369                         sfc_warn(sa, "Failed to %s %s mode",
 370                                  ((enabled) ? "enable" : "disable"), desc);
 371                 }
 372         }
 373
 374         sfc_adapter_unlock(sa);
 375 }
 376
 377 static void
 378 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 379 {
 380         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 381 }
 382
 383 static void
 384 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 385 {
 386         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 387 }
 388
 389 static void
 390 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 391 {
 392         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 393 }
 394
 395 static void
 396 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 397 {
 398         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 399 }
 400
 401 static int
 402 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 403                    uint16_t nb_rx_desc, unsigned int socket_id,
 404                    const struct rte_eth_rxconf *rx_conf,
 405                    struct rte_mempool *mb_pool)
 406 {
 407         struct sfc_adapter *sa = dev->data->dev_private;
 408         int rc;
 409
 410         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 411                      rx_queue_id, nb_rx_desc, socket_id);
 412
 413         sfc_adapter_lock(sa);
 414
 415         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 416                           rx_conf, mb_pool);
 417         if (rc != 0)
 418                 goto fail_rx_qinit;
 419
 420         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 421
 422         sfc_adapter_unlock(sa);
 423
 424         return 0;
 425
 426 fail_rx_qinit:
 427         sfc_adapter_unlock(sa);
 428         SFC_ASSERT(rc > 0);
 429         return -rc;
 430 }
 431
 432 static void
 433 sfc_rx_queue_release(void *queue)
 434 {
 435         struct sfc_dp_rxq *dp_rxq = queue;
 436         struct sfc_rxq *rxq;
 437         struct sfc_adapter *sa;
 438         unsigned int sw_index;
 439
 440         if (dp_rxq == NULL)
 441                 return;
 442
 443         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 444         sa = rxq->evq->sa;
 445         sfc_adapter_lock(sa);
 446
 447         sw_index = sfc_rxq_sw_index(rxq);
 448
 449         sfc_log_init(sa, "RxQ=%u", sw_index);
 450
 451         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 452
 453         sfc_rx_qfini(sa, sw_index);
 454
 455         sfc_adapter_unlock(sa);
 456 }
 457
 458 static int
 459 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 460                    uint16_t nb_tx_desc, unsigned int socket_id,
 461                    const struct rte_eth_txconf *tx_conf)
 462 {
 463         struct sfc_adapter *sa = dev->data->dev_private;
 464         int rc;
 465
 466         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 467                      tx_queue_id, nb_tx_desc, socket_id);
 468
 469         sfc_adapter_lock(sa);
 470
 471         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 472         if (rc != 0)
 473                 goto fail_tx_qinit;
 474
 475         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 476
 477         sfc_adapter_unlock(sa);
 478         return 0;
 479
 480 fail_tx_qinit:
 481         sfc_adapter_unlock(sa);
 482         SFC_ASSERT(rc > 0);
 483         return -rc;
 484 }
 485
 486 static void
 487 sfc_tx_queue_release(void *queue)
 488 {
 489         struct sfc_dp_txq *dp_txq = queue;
 490         struct sfc_txq *txq;
 491         unsigned int sw_index;
 492         struct sfc_adapter *sa;
 493
 494         if (dp_txq == NULL)
 495                 return;
 496
 497         txq = sfc_txq_by_dp_txq(dp_txq);
 498         sw_index = sfc_txq_sw_index(txq);
 499
 500         SFC_ASSERT(txq->evq != NULL);
 501         sa = txq->evq->sa;
 502
 503         sfc_log_init(sa, "TxQ = %u", sw_index);
 504
 505         sfc_adapter_lock(sa);
 506
 507         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 508         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 509
 510         sfc_tx_qfini(sa, sw_index);
 511
 512         sfc_adapter_unlock(sa);
 513 }
 514
 515 static int
 516 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 517 {
 518         struct sfc_adapter *sa = dev->data->dev_private;
 519         struct sfc_port *port = &sa->port;
 520         uint64_t *mac_stats;
 521         int ret;
 522
 523         rte_spinlock_lock(&port->mac_stats_lock);
 524
 525         ret = sfc_port_update_mac_stats(sa);
 526         if (ret != 0)
 527                 goto unlock;
 528
 529         mac_stats = port->mac_stats_buf;
 530
 531         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 532                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 533                 stats->ipackets =
 534                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 535                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 536                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 537                 stats->opackets =
 538                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 539                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 540                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 541                 stats->ibytes =
 542                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 543                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 544                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 545                 stats->obytes =
 546                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 547                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 548                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 549                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 550                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 551                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 552         } else {
 553                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 554                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 555                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 556                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 557                 /*
 558                  * Take into account stats which are whenever supported
 559                  * on EF10. If some stat is not supported by current
 560                  * firmware variant or HW revision, it is guaranteed
 561                  * to be zero in mac_stats.
 562                  */
 563                 stats->imissed =
 564                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 565                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 566                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 567                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 568                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 569                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 570                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 571                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 572                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 573                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 574                 stats->ierrors =
 575                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 576                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 577                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 578                 /* no oerrors counters supported on EF10 */
 579         }
 580
 581 unlock:
 582         rte_spinlock_unlock(&port->mac_stats_lock);
 583         SFC_ASSERT(ret >= 0);
 584         return -ret;
 585 }
 586
 587 static void
 588 sfc_stats_reset(struct rte_eth_dev *dev)
 589 {
 590         struct sfc_adapter *sa = dev->data->dev_private;
 591         struct sfc_port *port = &sa->port;
 592         int rc;
 593
 594         if (sa->state != SFC_ADAPTER_STARTED) {
 595                 /*
 596                  * The operation cannot be done if port is not started; it
 597                  * will be scheduled to be done during the next port start
 598                  */
 599                 port->mac_stats_reset_pending = B_TRUE;
 600                 return;
 601         }
 602
 603         rc = sfc_port_reset_mac_stats(sa);
 604         if (rc != 0)
 605                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 606 }
 607
 608 static int
 609 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 610                unsigned int xstats_count)
 611 {
 612         struct sfc_adapter *sa = dev->data->dev_private;
 613         struct sfc_port *port = &sa->port;
 614         uint64_t *mac_stats;
 615         int rc;
 616         unsigned int i;
 617         int nstats = 0;
 618
 619         rte_spinlock_lock(&port->mac_stats_lock);
 620
 621         rc = sfc_port_update_mac_stats(sa);
 622         if (rc != 0) {
 623                 SFC_ASSERT(rc > 0);
 624                 nstats = -rc;
 625                 goto unlock;
 626         }
 627
 628         mac_stats = port->mac_stats_buf;
 629
 630         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 631                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 632                         if (xstats != NULL && nstats < (int)xstats_count) {
 633                                 xstats[nstats].id = nstats;
 634                                 xstats[nstats].value = mac_stats[i];
 635                         }
 636                         nstats++;
 637                 }
 638         }
 639
 640 unlock:
 641         rte_spinlock_unlock(&port->mac_stats_lock);
 642
 643         return nstats;
 644 }
 645
 646 static int
 647 sfc_xstats_get_names(struct rte_eth_dev *dev,
 648                      struct rte_eth_xstat_name *xstats_names,
 649                      unsigned int xstats_count)
 650 {
 651         struct sfc_adapter *sa = dev->data->dev_private;
 652         struct sfc_port *port = &sa->port;
 653         unsigned int i;
 654         unsigned int nstats = 0;
 655
 656         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 657                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 658                         if (xstats_names != NULL && nstats < xstats_count)
 659                                 strncpy(xstats_names[nstats].name,
 660                                         efx_mac_stat_name(sa->nic, i),
 661                                         sizeof(xstats_names[0].name));
 662                         nstats++;
 663                 }
 664         }
 665
 666         return nstats;
 667 }
 668
 669 static int
 670 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 671                      uint64_t *values, unsigned int n)
 672 {
 673         struct sfc_adapter *sa = dev->data->dev_private;
 674         struct sfc_port *port = &sa->port;
 675         uint64_t *mac_stats;
 676         unsigned int nb_supported = 0;
 677         unsigned int nb_written = 0;
 678         unsigned int i;
 679         int ret;
 680         int rc;
 681
 682         if (unlikely(values == NULL) ||
 683             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 684                 return port->mac_stats_nb_supported;
 685
 686         rte_spinlock_lock(&port->mac_stats_lock);
 687
 688         rc = sfc_port_update_mac_stats(sa);
 689         if (rc != 0) {
 690                 SFC_ASSERT(rc > 0);
 691                 ret = -rc;
 692                 goto unlock;
 693         }
 694
 695         mac_stats = port->mac_stats_buf;
 696
 697         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 698                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 699                         continue;
 700
 701                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 702                         values[nb_written++] = mac_stats[i];
 703
 704                 ++nb_supported;
 705         }
 706
 707         ret = nb_written;
 708
 709 unlock:
 710         rte_spinlock_unlock(&port->mac_stats_lock);
 711
 712         return ret;
 713 }
 714
 715 static int
 716 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 717                            struct rte_eth_xstat_name *xstats_names,
 718                            const uint64_t *ids, unsigned int size)
 719 {
 720         struct sfc_adapter *sa = dev->data->dev_private;
 721         struct sfc_port *port = &sa->port;
 722         unsigned int nb_supported = 0;
 723         unsigned int nb_written = 0;
 724         unsigned int i;
 725
 726         if (unlikely(xstats_names == NULL) ||
 727             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 728                 return port->mac_stats_nb_supported;
 729
 730         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 731                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 732                         continue;
 733
 734                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 735                         char *name = xstats_names[nb_written++].name;
 736
 737                         strncpy(name, efx_mac_stat_name(sa->nic, i),
 738                                 sizeof(xstats_names[0].name));
 739                         name[sizeof(xstats_names[0].name) - 1] = '\0';
 740                 }
 741
 742                 ++nb_supported;
 743         }
 744
 745         return nb_written;
 746 }
 747
 748 static int
 749 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 750 {
 751         struct sfc_adapter *sa = dev->data->dev_private;
 752         unsigned int wanted_fc, link_fc;
 753
 754         memset(fc_conf, 0, sizeof(*fc_conf));
 755
 756         sfc_adapter_lock(sa);
 757
 758         if (sa->state == SFC_ADAPTER_STARTED)
 759                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 760         else
 761                 link_fc = sa->port.flow_ctrl;
 762
 763         switch (link_fc) {
 764         case 0:
 765                 fc_conf->mode = RTE_FC_NONE;
 766                 break;
 767         case EFX_FCNTL_RESPOND:
 768                 fc_conf->mode = RTE_FC_RX_PAUSE;
 769                 break;
 770         case EFX_FCNTL_GENERATE:
 771                 fc_conf->mode = RTE_FC_TX_PAUSE;
 772                 break;
 773         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 774                 fc_conf->mode = RTE_FC_FULL;
 775                 break;
 776         default:
 777                 sfc_err(sa, "%s: unexpected flow control value %#x",
 778                         __func__, link_fc);
 779         }
 780
 781         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 782
 783         sfc_adapter_unlock(sa);
 784
 785         return 0;
 786 }
 787
 788 static int
 789 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 790 {
 791         struct sfc_adapter *sa = dev->data->dev_private;
 792         struct sfc_port *port = &sa->port;
 793         unsigned int fcntl;
 794         int rc;
 795
 796         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 797             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 798             fc_conf->mac_ctrl_frame_fwd != 0) {
 799                 sfc_err(sa, "unsupported flow control settings specified");
 800                 rc = EINVAL;
 801                 goto fail_inval;
 802         }
 803
 804         switch (fc_conf->mode) {
 805         case RTE_FC_NONE:
 806                 fcntl = 0;
 807                 break;
 808         case RTE_FC_RX_PAUSE:
 809                 fcntl = EFX_FCNTL_RESPOND;
 810                 break;
 811         case RTE_FC_TX_PAUSE:
 812                 fcntl = EFX_FCNTL_GENERATE;
 813                 break;
 814         case RTE_FC_FULL:
 815                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 816                 break;
 817         default:
 818                 rc = EINVAL;
 819                 goto fail_inval;
 820         }
 821
 822         sfc_adapter_lock(sa);
 823
 824         if (sa->state == SFC_ADAPTER_STARTED) {
 825                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 826                 if (rc != 0)
 827                         goto fail_mac_fcntl_set;
 828         }
 829
 830         port->flow_ctrl = fcntl;
 831         port->flow_ctrl_autoneg = fc_conf->autoneg;
 832
 833         sfc_adapter_unlock(sa);
 834
 835         return 0;
 836
 837 fail_mac_fcntl_set:
 838         sfc_adapter_unlock(sa);
 839 fail_inval:
 840         SFC_ASSERT(rc > 0);
 841         return -rc;
 842 }
 843
 844 static int
 845 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 846 {
 847         struct sfc_adapter *sa = dev->data->dev_private;
 848         size_t pdu = EFX_MAC_PDU(mtu);
 849         size_t old_pdu;
 850         int rc;
 851
 852         sfc_log_init(sa, "mtu=%u", mtu);
 853
 854         rc = EINVAL;
 855         if (pdu < EFX_MAC_PDU_MIN) {
 856                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 857                         (unsigned int)mtu, (unsigned int)pdu,
 858                         EFX_MAC_PDU_MIN);
 859                 goto fail_inval;
 860         }
 861         if (pdu > EFX_MAC_PDU_MAX) {
 862                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 863                         (unsigned int)mtu, (unsigned int)pdu,
 864                         EFX_MAC_PDU_MAX);
 865                 goto fail_inval;
 866         }
 867
 868         sfc_adapter_lock(sa);
 869
 870         if (pdu != sa->port.pdu) {
 871                 if (sa->state == SFC_ADAPTER_STARTED) {
 872                         sfc_stop(sa);
 873
 874                         old_pdu = sa->port.pdu;
 875                         sa->port.pdu = pdu;
 876                         rc = sfc_start(sa);
 877                         if (rc != 0)
 878                                 goto fail_start;
 879                 } else {
 880                         sa->port.pdu = pdu;
 881                 }
 882         }
 883
 884         /*
 885          * The driver does not use it, but other PMDs update jumbo_frame
 886          * flag and max_rx_pkt_len when MTU is set.
 887          */
 888         if (mtu > ETHER_MAX_LEN) {
 889                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 890
 891                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 892                 rxmode->jumbo_frame = 1;
 893         }
 894
 895         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 896
 897         sfc_adapter_unlock(sa);
 898
 899         sfc_log_init(sa, "done");
 900         return 0;
 901
 902 fail_start:
 903         sa->port.pdu = old_pdu;
 904         if (sfc_start(sa) != 0)
 905                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 906                         "PDU max size - port is stopped",
 907                         (unsigned int)pdu, (unsigned int)old_pdu);
 908         sfc_adapter_unlock(sa);
 909
 910 fail_inval:
 911         sfc_log_init(sa, "failed %d", rc);
 912         SFC_ASSERT(rc > 0);
 913         return -rc;
 914 }
 915 static int
 916 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 917 {
 918         struct sfc_adapter *sa = dev->data->dev_private;
 919         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 920         struct sfc_port *port = &sa->port;
 921         struct ether_addr *old_addr = &dev->data->mac_addrs[0];
 922         int rc = 0;
 923
 924         sfc_adapter_lock(sa);
 925
 926         /*
 927          * Copy the address to the device private data so that
 928          * it could be recalled in the case of adapter restart.
 929          */
 930         ether_addr_copy(mac_addr, &port->default_mac_addr);
 931
 932         /*
 933          * Neither of the two following checks can return
 934          * an error. The new MAC address is preserved in
 935          * the device private data and can be activated
 936          * on the next port start if the user prevents
 937          * isolated mode from being enabled.
 938          */
 939         if (port->isolated) {
 940                 sfc_warn(sa, "isolated mode is active on the port");
 941                 sfc_warn(sa, "will not set MAC address");
 942                 goto unlock;
 943         }
 944
 945         if (sa->state != SFC_ADAPTER_STARTED) {
 946                 sfc_notice(sa, "the port is not started");
 947                 sfc_notice(sa, "the new MAC address will be set on port start");
 948
 949                 goto unlock;
 950         }
 951
 952         if (encp->enc_allow_set_mac_with_installed_filters) {
 953                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 954                 if (rc != 0) {
 955                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 956                         goto unlock;
 957                 }
 958
 959                 /*
 960                  * Changing the MAC address by means of MCDI request
 961                  * has no effect on received traffic, therefore
 962                  * we also need to update unicast filters
 963                  */
 964                 rc = sfc_set_rx_mode(sa);
 965                 if (rc != 0) {
 966                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 967                         /* Rollback the old address */
 968                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
 969                         (void)sfc_set_rx_mode(sa);
 970                 }
 971         } else {
 972                 sfc_warn(sa, "cannot set MAC address with filters installed");
 973                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 974                 sfc_warn(sa, "(some traffic may be dropped)");
 975
 976                 /*
 977                  * Since setting MAC address with filters installed is not
 978                  * allowed on the adapter, the new MAC address will be set
 979                  * by means of adapter restart. sfc_start() shall retrieve
 980                  * the new address from the device private data and set it.
 981                  */
 982                 sfc_stop(sa);
 983                 rc = sfc_start(sa);
 984                 if (rc != 0)
 985                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 986         }
 987
 988 unlock:
 989         if (rc != 0)
 990                 ether_addr_copy(old_addr, &port->default_mac_addr);
 991
 992         sfc_adapter_unlock(sa);
 993
 994         SFC_ASSERT(rc >= 0);
 995         return -rc;
 996 }
 997
 998
 999 static int
1000 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
1001                      uint32_t nb_mc_addr)
1002 {
1003         struct sfc_adapter *sa = dev->data->dev_private;
1004         struct sfc_port *port = &sa->port;
1005         uint8_t *mc_addrs = port->mcast_addrs;
1006         int rc;
1007         unsigned int i;
1008
1009         if (port->isolated) {
1010                 sfc_err(sa, "isolated mode is active on the port");
1011                 sfc_err(sa, "will not set multicast address list");
1012                 return -ENOTSUP;
1013         }
1014
1015         if (mc_addrs == NULL)
1016                 return -ENOBUFS;
1017
1018         if (nb_mc_addr > port->max_mcast_addrs) {
1019                 sfc_err(sa, "too many multicast addresses: %u > %u",
1020                          nb_mc_addr, port->max_mcast_addrs);
1021                 return -EINVAL;
1022         }
1023
1024         for (i = 0; i < nb_mc_addr; ++i) {
1025                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1026                                  EFX_MAC_ADDR_LEN);
1027                 mc_addrs += EFX_MAC_ADDR_LEN;
1028         }
1029
1030         port->nb_mcast_addrs = nb_mc_addr;
1031
1032         if (sa->state != SFC_ADAPTER_STARTED)
1033                 return 0;
1034
1035         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1036                                         port->nb_mcast_addrs);
1037         if (rc != 0)
1038                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1039
1040         SFC_ASSERT(rc > 0);
1041         return -rc;
1042 }
1043
1044 /*
1045  * The function is used by the secondary process as well. It must not
1046  * use any process-local pointers from the adapter data.
1047  */
1048 static void
1049 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1050                       struct rte_eth_rxq_info *qinfo)
1051 {
1052         struct sfc_adapter *sa = dev->data->dev_private;
1053         struct sfc_rxq_info *rxq_info;
1054         struct sfc_rxq *rxq;
1055
1056         sfc_adapter_lock(sa);
1057
1058         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1059
1060         rxq_info = &sa->rxq_info[rx_queue_id];
1061         rxq = rxq_info->rxq;
1062         SFC_ASSERT(rxq != NULL);
1063
1064         qinfo->mp = rxq->refill_mb_pool;
1065         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1066         qinfo->conf.rx_drop_en = 1;
1067         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1068         qinfo->conf.offloads = DEV_RX_OFFLOAD_IPV4_CKSUM |
1069                                DEV_RX_OFFLOAD_UDP_CKSUM |
1070                                DEV_RX_OFFLOAD_TCP_CKSUM;
1071         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1072                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1073                 qinfo->scattered_rx = 1;
1074         }
1075         qinfo->nb_desc = rxq_info->entries;
1076
1077         sfc_adapter_unlock(sa);
1078 }
1079
1080 /*
1081  * The function is used by the secondary process as well. It must not
1082  * use any process-local pointers from the adapter data.
1083  */
1084 static void
1085 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1086                       struct rte_eth_txq_info *qinfo)
1087 {
1088         struct sfc_adapter *sa = dev->data->dev_private;
1089         struct sfc_txq_info *txq_info;
1090
1091         sfc_adapter_lock(sa);
1092
1093         SFC_ASSERT(tx_queue_id < sa->txq_count);
1094
1095         txq_info = &sa->txq_info[tx_queue_id];
1096         SFC_ASSERT(txq_info->txq != NULL);
1097
1098         memset(qinfo, 0, sizeof(*qinfo));
1099
1100         qinfo->conf.txq_flags = txq_info->txq->flags;
1101         qinfo->conf.offloads = txq_info->txq->offloads;
1102         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1103         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1104         qinfo->nb_desc = txq_info->entries;
1105
1106         sfc_adapter_unlock(sa);
1107 }
1108
1109 static uint32_t
1110 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1111 {
1112         struct sfc_adapter *sa = dev->data->dev_private;
1113
1114         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1115
1116         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1117 }
1118
1119 static int
1120 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1121 {
1122         struct sfc_dp_rxq *dp_rxq = queue;
1123
1124         return sfc_rx_qdesc_done(dp_rxq, offset);
1125 }
1126
1127 static int
1128 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1129 {
1130         struct sfc_dp_rxq *dp_rxq = queue;
1131         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1132
1133         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1134 }
1135
1136 static int
1137 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1138 {
1139         struct sfc_dp_txq *dp_txq = queue;
1140         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1141
1142         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1143 }
1144
1145 static int
1146 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1147 {
1148         struct sfc_adapter *sa = dev->data->dev_private;
1149         int rc;
1150
1151         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1152
1153         sfc_adapter_lock(sa);
1154
1155         rc = EINVAL;
1156         if (sa->state != SFC_ADAPTER_STARTED)
1157                 goto fail_not_started;
1158
1159         rc = sfc_rx_qstart(sa, rx_queue_id);
1160         if (rc != 0)
1161                 goto fail_rx_qstart;
1162
1163         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1164
1165         sfc_adapter_unlock(sa);
1166
1167         return 0;
1168
1169 fail_rx_qstart:
1170 fail_not_started:
1171         sfc_adapter_unlock(sa);
1172         SFC_ASSERT(rc > 0);
1173         return -rc;
1174 }
1175
1176 static int
1177 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1178 {
1179         struct sfc_adapter *sa = dev->data->dev_private;
1180
1181         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1182
1183         sfc_adapter_lock(sa);
1184         sfc_rx_qstop(sa, rx_queue_id);
1185
1186         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1187
1188         sfc_adapter_unlock(sa);
1189
1190         return 0;
1191 }
1192
1193 static int
1194 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1195 {
1196         struct sfc_adapter *sa = dev->data->dev_private;
1197         int rc;
1198
1199         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1200
1201         sfc_adapter_lock(sa);
1202
1203         rc = EINVAL;
1204         if (sa->state != SFC_ADAPTER_STARTED)
1205                 goto fail_not_started;
1206
1207         rc = sfc_tx_qstart(sa, tx_queue_id);
1208         if (rc != 0)
1209                 goto fail_tx_qstart;
1210
1211         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1212
1213         sfc_adapter_unlock(sa);
1214         return 0;
1215
1216 fail_tx_qstart:
1217
1218 fail_not_started:
1219         sfc_adapter_unlock(sa);
1220         SFC_ASSERT(rc > 0);
1221         return -rc;
1222 }
1223
1224 static int
1225 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1226 {
1227         struct sfc_adapter *sa = dev->data->dev_private;
1228
1229         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1230
1231         sfc_adapter_lock(sa);
1232
1233         sfc_tx_qstop(sa, tx_queue_id);
1234
1235         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1236
1237         sfc_adapter_unlock(sa);
1238         return 0;
1239 }
1240
1241 static efx_tunnel_protocol_t
1242 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1243 {
1244         switch (rte_type) {
1245         case RTE_TUNNEL_TYPE_VXLAN:
1246                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1247         case RTE_TUNNEL_TYPE_GENEVE:
1248                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1249         default:
1250                 return EFX_TUNNEL_NPROTOS;
1251         }
1252 }
1253
1254 enum sfc_udp_tunnel_op_e {
1255         SFC_UDP_TUNNEL_ADD_PORT,
1256         SFC_UDP_TUNNEL_DEL_PORT,
1257 };
1258
1259 static int
1260 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1261                       struct rte_eth_udp_tunnel *tunnel_udp,
1262                       enum sfc_udp_tunnel_op_e op)
1263 {
1264         struct sfc_adapter *sa = dev->data->dev_private;
1265         efx_tunnel_protocol_t tunnel_proto;
1266         int rc;
1267
1268         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1269                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1270                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1271                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1272
1273         tunnel_proto =
1274                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1275         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1276                 rc = ENOTSUP;
1277                 goto fail_bad_proto;
1278         }
1279
1280         sfc_adapter_lock(sa);
1281
1282         switch (op) {
1283         case SFC_UDP_TUNNEL_ADD_PORT:
1284                 rc = efx_tunnel_config_udp_add(sa->nic,
1285                                                tunnel_udp->udp_port,
1286                                                tunnel_proto);
1287                 break;
1288         case SFC_UDP_TUNNEL_DEL_PORT:
1289                 rc = efx_tunnel_config_udp_remove(sa->nic,
1290                                                   tunnel_udp->udp_port,
1291                                                   tunnel_proto);
1292                 break;
1293         default:
1294                 rc = EINVAL;
1295                 goto fail_bad_op;
1296         }
1297
1298         if (rc != 0)
1299                 goto fail_op;
1300
1301         if (sa->state == SFC_ADAPTER_STARTED) {
1302                 rc = efx_tunnel_reconfigure(sa->nic);
1303                 if (rc == EAGAIN) {
1304                         /*
1305                          * Configuration is accepted by FW and MC reboot
1306                          * is initiated to apply the changes. MC reboot
1307                          * will be handled in a usual way (MC reboot
1308                          * event on management event queue and adapter
1309                          * restart).
1310                          */
1311                         rc = 0;
1312                 } else if (rc != 0) {
1313                         goto fail_reconfigure;
1314                 }
1315         }
1316
1317         sfc_adapter_unlock(sa);
1318         return 0;
1319
1320 fail_reconfigure:
1321         /* Remove/restore entry since the change makes the trouble */
1322         switch (op) {
1323         case SFC_UDP_TUNNEL_ADD_PORT:
1324                 (void)efx_tunnel_config_udp_remove(sa->nic,
1325                                                    tunnel_udp->udp_port,
1326                                                    tunnel_proto);
1327                 break;
1328         case SFC_UDP_TUNNEL_DEL_PORT:
1329                 (void)efx_tunnel_config_udp_add(sa->nic,
1330                                                 tunnel_udp->udp_port,
1331                                                 tunnel_proto);
1332                 break;
1333         }
1334
1335 fail_op:
1336 fail_bad_op:
1337         sfc_adapter_unlock(sa);
1338
1339 fail_bad_proto:
1340         SFC_ASSERT(rc > 0);
1341         return -rc;
1342 }
1343
1344 static int
1345 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1346                             struct rte_eth_udp_tunnel *tunnel_udp)
1347 {
1348         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1349 }
1350
1351 static int
1352 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1353                             struct rte_eth_udp_tunnel *tunnel_udp)
1354 {
1355         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1356 }
1357
1358 static int
1359 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1360                           struct rte_eth_rss_conf *rss_conf)
1361 {
1362         struct sfc_adapter *sa = dev->data->dev_private;
1363         struct sfc_port *port = &sa->port;
1364
1365         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1366                 return -ENOTSUP;
1367
1368         if (sa->rss_channels == 0)
1369                 return -EINVAL;
1370
1371         sfc_adapter_lock(sa);
1372
1373         /*
1374          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1375          * hence, conversion is done here to derive a correct set of ETH_RSS
1376          * flags which corresponds to the active EFX configuration stored
1377          * locally in 'sfc_adapter' and kept up-to-date
1378          */
1379         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1380         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1381         if (rss_conf->rss_key != NULL)
1382                 rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1383
1384         sfc_adapter_unlock(sa);
1385
1386         return 0;
1387 }
1388
1389 static int
1390 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1391                         struct rte_eth_rss_conf *rss_conf)
1392 {
1393         struct sfc_adapter *sa = dev->data->dev_private;
1394         struct sfc_port *port = &sa->port;
1395         unsigned int efx_hash_types;
1396         int rc = 0;
1397
1398         if (port->isolated)
1399                 return -ENOTSUP;
1400
1401         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1402                 sfc_err(sa, "RSS is not available");
1403                 return -ENOTSUP;
1404         }
1405
1406         if (sa->rss_channels == 0) {
1407                 sfc_err(sa, "RSS is not configured");
1408                 return -EINVAL;
1409         }
1410
1411         if ((rss_conf->rss_key != NULL) &&
1412             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1413                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1414                         sizeof(sa->rss_key));
1415                 return -EINVAL;
1416         }
1417
1418         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1419                 sfc_err(sa, "unsupported hash functions requested");
1420                 return -EINVAL;
1421         }
1422
1423         sfc_adapter_lock(sa);
1424
1425         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1426
1427         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1428                                    EFX_RX_HASHALG_TOEPLITZ,
1429                                    efx_hash_types, B_TRUE);
1430         if (rc != 0)
1431                 goto fail_scale_mode_set;
1432
1433         if (rss_conf->rss_key != NULL) {
1434                 if (sa->state == SFC_ADAPTER_STARTED) {
1435                         rc = efx_rx_scale_key_set(sa->nic,
1436                                                   EFX_RSS_CONTEXT_DEFAULT,
1437                                                   rss_conf->rss_key,
1438                                                   sizeof(sa->rss_key));
1439                         if (rc != 0)
1440                                 goto fail_scale_key_set;
1441                 }
1442
1443                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1444         }
1445
1446         sa->rss_hash_types = efx_hash_types;
1447
1448         sfc_adapter_unlock(sa);
1449
1450         return 0;
1451
1452 fail_scale_key_set:
1453         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1454                                   EFX_RX_HASHALG_TOEPLITZ,
1455                                   sa->rss_hash_types, B_TRUE) != 0)
1456                 sfc_err(sa, "failed to restore RSS mode");
1457
1458 fail_scale_mode_set:
1459         sfc_adapter_unlock(sa);
1460         return -rc;
1461 }
1462
1463 static int
1464 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1465                        struct rte_eth_rss_reta_entry64 *reta_conf,
1466                        uint16_t reta_size)
1467 {
1468         struct sfc_adapter *sa = dev->data->dev_private;
1469         struct sfc_port *port = &sa->port;
1470         int entry;
1471
1472         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1473                 return -ENOTSUP;
1474
1475         if (sa->rss_channels == 0)
1476                 return -EINVAL;
1477
1478         if (reta_size != EFX_RSS_TBL_SIZE)
1479                 return -EINVAL;
1480
1481         sfc_adapter_lock(sa);
1482
1483         for (entry = 0; entry < reta_size; entry++) {
1484                 int grp = entry / RTE_RETA_GROUP_SIZE;
1485                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1486
1487                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1488                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1489         }
1490
1491         sfc_adapter_unlock(sa);
1492
1493         return 0;
1494 }
1495
1496 static int
1497 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1498                         struct rte_eth_rss_reta_entry64 *reta_conf,
1499                         uint16_t reta_size)
1500 {
1501         struct sfc_adapter *sa = dev->data->dev_private;
1502         struct sfc_port *port = &sa->port;
1503         unsigned int *rss_tbl_new;
1504         uint16_t entry;
1505         int rc = 0;
1506
1507
1508         if (port->isolated)
1509                 return -ENOTSUP;
1510
1511         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1512                 sfc_err(sa, "RSS is not available");
1513                 return -ENOTSUP;
1514         }
1515
1516         if (sa->rss_channels == 0) {
1517                 sfc_err(sa, "RSS is not configured");
1518                 return -EINVAL;
1519         }
1520
1521         if (reta_size != EFX_RSS_TBL_SIZE) {
1522                 sfc_err(sa, "RETA size is wrong (should be %u)",
1523                         EFX_RSS_TBL_SIZE);
1524                 return -EINVAL;
1525         }
1526
1527         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1528         if (rss_tbl_new == NULL)
1529                 return -ENOMEM;
1530
1531         sfc_adapter_lock(sa);
1532
1533         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1534
1535         for (entry = 0; entry < reta_size; entry++) {
1536                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1537                 struct rte_eth_rss_reta_entry64 *grp;
1538
1539                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1540
1541                 if (grp->mask & (1ull << grp_idx)) {
1542                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1543                                 rc = EINVAL;
1544                                 goto bad_reta_entry;
1545                         }
1546                         rss_tbl_new[entry] = grp->reta[grp_idx];
1547                 }
1548         }
1549
1550         if (sa->state == SFC_ADAPTER_STARTED) {
1551                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1552                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1553                 if (rc != 0)
1554                         goto fail_scale_tbl_set;
1555         }
1556
1557         rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1558
1559 fail_scale_tbl_set:
1560 bad_reta_entry:
1561         sfc_adapter_unlock(sa);
1562
1563         rte_free(rss_tbl_new);
1564
1565         SFC_ASSERT(rc >= 0);
1566         return -rc;
1567 }
1568
1569 static int
1570 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1571                     enum rte_filter_op filter_op,
1572                     void *arg)
1573 {
1574         struct sfc_adapter *sa = dev->data->dev_private;
1575         int rc = ENOTSUP;
1576
1577         sfc_log_init(sa, "entry");
1578
1579         switch (filter_type) {
1580         case RTE_ETH_FILTER_NONE:
1581                 sfc_err(sa, "Global filters configuration not supported");
1582                 break;
1583         case RTE_ETH_FILTER_MACVLAN:
1584                 sfc_err(sa, "MACVLAN filters not supported");
1585                 break;
1586         case RTE_ETH_FILTER_ETHERTYPE:
1587                 sfc_err(sa, "EtherType filters not supported");
1588                 break;
1589         case RTE_ETH_FILTER_FLEXIBLE:
1590                 sfc_err(sa, "Flexible filters not supported");
1591                 break;
1592         case RTE_ETH_FILTER_SYN:
1593                 sfc_err(sa, "SYN filters not supported");
1594                 break;
1595         case RTE_ETH_FILTER_NTUPLE:
1596                 sfc_err(sa, "NTUPLE filters not supported");
1597                 break;
1598         case RTE_ETH_FILTER_TUNNEL:
1599                 sfc_err(sa, "Tunnel filters not supported");
1600                 break;
1601         case RTE_ETH_FILTER_FDIR:
1602                 sfc_err(sa, "Flow Director filters not supported");
1603                 break;
1604         case RTE_ETH_FILTER_HASH:
1605                 sfc_err(sa, "Hash filters not supported");
1606                 break;
1607         case RTE_ETH_FILTER_GENERIC:
1608                 if (filter_op != RTE_ETH_FILTER_GET) {
1609                         rc = EINVAL;
1610                 } else {
1611                         *(const void **)arg = &sfc_flow_ops;
1612                         rc = 0;
1613                 }
1614                 break;
1615         default:
1616                 sfc_err(sa, "Unknown filter type %u", filter_type);
1617                 break;
1618         }
1619
1620         sfc_log_init(sa, "exit: %d", -rc);
1621         SFC_ASSERT(rc >= 0);
1622         return -rc;
1623 }
1624
1625 static const struct eth_dev_ops sfc_eth_dev_ops = {
1626         .dev_configure                  = sfc_dev_configure,
1627         .dev_start                      = sfc_dev_start,
1628         .dev_stop                       = sfc_dev_stop,
1629         .dev_set_link_up                = sfc_dev_set_link_up,
1630         .dev_set_link_down              = sfc_dev_set_link_down,
1631         .dev_close                      = sfc_dev_close,
1632         .promiscuous_enable             = sfc_dev_promisc_enable,
1633         .promiscuous_disable            = sfc_dev_promisc_disable,
1634         .allmulticast_enable            = sfc_dev_allmulti_enable,
1635         .allmulticast_disable           = sfc_dev_allmulti_disable,
1636         .link_update                    = sfc_dev_link_update,
1637         .stats_get                      = sfc_stats_get,
1638         .stats_reset                    = sfc_stats_reset,
1639         .xstats_get                     = sfc_xstats_get,
1640         .xstats_reset                   = sfc_stats_reset,
1641         .xstats_get_names               = sfc_xstats_get_names,
1642         .dev_infos_get                  = sfc_dev_infos_get,
1643         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1644         .mtu_set                        = sfc_dev_set_mtu,
1645         .rx_queue_start                 = sfc_rx_queue_start,
1646         .rx_queue_stop                  = sfc_rx_queue_stop,
1647         .tx_queue_start                 = sfc_tx_queue_start,
1648         .tx_queue_stop                  = sfc_tx_queue_stop,
1649         .rx_queue_setup                 = sfc_rx_queue_setup,
1650         .rx_queue_release               = sfc_rx_queue_release,
1651         .rx_queue_count                 = sfc_rx_queue_count,
1652         .rx_descriptor_done             = sfc_rx_descriptor_done,
1653         .rx_descriptor_status           = sfc_rx_descriptor_status,
1654         .tx_descriptor_status           = sfc_tx_descriptor_status,
1655         .tx_queue_setup                 = sfc_tx_queue_setup,
1656         .tx_queue_release               = sfc_tx_queue_release,
1657         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1658         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1659         .mac_addr_set                   = sfc_mac_addr_set,
1660         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1661         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1662         .reta_update                    = sfc_dev_rss_reta_update,
1663         .reta_query                     = sfc_dev_rss_reta_query,
1664         .rss_hash_update                = sfc_dev_rss_hash_update,
1665         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1666         .filter_ctrl                    = sfc_dev_filter_ctrl,
1667         .set_mc_addr_list               = sfc_set_mc_addr_list,
1668         .rxq_info_get                   = sfc_rx_queue_info_get,
1669         .txq_info_get                   = sfc_tx_queue_info_get,
1670         .fw_version_get                 = sfc_fw_version_get,
1671         .xstats_get_by_id               = sfc_xstats_get_by_id,
1672         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1673 };
1674
1675 /**
1676  * Duplicate a string in potentially shared memory required for
1677  * multi-process support.
1678  *
1679  * strdup() allocates from process-local heap/memory.
1680  */
1681 static char *
1682 sfc_strdup(const char *str)
1683 {
1684         size_t size;
1685         char *copy;
1686
1687         if (str == NULL)
1688                 return NULL;
1689
1690         size = strlen(str) + 1;
1691         copy = rte_malloc(__func__, size, 0);
1692         if (copy != NULL)
1693                 rte_memcpy(copy, str, size);
1694
1695         return copy;
1696 }
1697
1698 static int
1699 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1700 {
1701         struct sfc_adapter *sa = dev->data->dev_private;
1702         unsigned int avail_caps = 0;
1703         const char *rx_name = NULL;
1704         const char *tx_name = NULL;
1705         int rc;
1706
1707         switch (sa->family) {
1708         case EFX_FAMILY_HUNTINGTON:
1709         case EFX_FAMILY_MEDFORD:
1710         case EFX_FAMILY_MEDFORD2:
1711                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1712                 break;
1713         default:
1714                 break;
1715         }
1716
1717         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1718                                 sfc_kvarg_string_handler, &rx_name);
1719         if (rc != 0)
1720                 goto fail_kvarg_rx_datapath;
1721
1722         if (rx_name != NULL) {
1723                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1724                 if (sa->dp_rx == NULL) {
1725                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1726                         rc = ENOENT;
1727                         goto fail_dp_rx;
1728                 }
1729                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1730                         sfc_err(sa,
1731                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1732                                 rx_name);
1733                         rc = EINVAL;
1734                         goto fail_dp_rx_caps;
1735                 }
1736         } else {
1737                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1738                 if (sa->dp_rx == NULL) {
1739                         sfc_err(sa, "Rx datapath by caps %#x not found",
1740                                 avail_caps);
1741                         rc = ENOENT;
1742                         goto fail_dp_rx;
1743                 }
1744         }
1745
1746         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1747         if (sa->dp_rx_name == NULL) {
1748                 rc = ENOMEM;
1749                 goto fail_dp_rx_name;
1750         }
1751
1752         sfc_notice(sa, "use %s Rx datapath", sa->dp_rx_name);
1753
1754         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1755
1756         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1757                                 sfc_kvarg_string_handler, &tx_name);
1758         if (rc != 0)
1759                 goto fail_kvarg_tx_datapath;
1760
1761         if (tx_name != NULL) {
1762                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1763                 if (sa->dp_tx == NULL) {
1764                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1765                         rc = ENOENT;
1766                         goto fail_dp_tx;
1767                 }
1768                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1769                         sfc_err(sa,
1770                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1771                                 tx_name);
1772                         rc = EINVAL;
1773                         goto fail_dp_tx_caps;
1774                 }
1775         } else {
1776                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1777                 if (sa->dp_tx == NULL) {
1778                         sfc_err(sa, "Tx datapath by caps %#x not found",
1779                                 avail_caps);
1780                         rc = ENOENT;
1781                         goto fail_dp_tx;
1782                 }
1783         }
1784
1785         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1786         if (sa->dp_tx_name == NULL) {
1787                 rc = ENOMEM;
1788                 goto fail_dp_tx_name;
1789         }
1790
1791         sfc_notice(sa, "use %s Tx datapath", sa->dp_tx_name);
1792
1793         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1794
1795         dev->dev_ops = &sfc_eth_dev_ops;
1796
1797         return 0;
1798
1799 fail_dp_tx_name:
1800 fail_dp_tx_caps:
1801         sa->dp_tx = NULL;
1802
1803 fail_dp_tx:
1804 fail_kvarg_tx_datapath:
1805         rte_free(sa->dp_rx_name);
1806         sa->dp_rx_name = NULL;
1807
1808 fail_dp_rx_name:
1809 fail_dp_rx_caps:
1810         sa->dp_rx = NULL;
1811
1812 fail_dp_rx:
1813 fail_kvarg_rx_datapath:
1814         return rc;
1815 }
1816
1817 static void
1818 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1819 {
1820         struct sfc_adapter *sa = dev->data->dev_private;
1821
1822         dev->dev_ops = NULL;
1823         dev->rx_pkt_burst = NULL;
1824         dev->tx_pkt_burst = NULL;
1825
1826         rte_free(sa->dp_tx_name);
1827         sa->dp_tx_name = NULL;
1828         sa->dp_tx = NULL;
1829
1830         rte_free(sa->dp_rx_name);
1831         sa->dp_rx_name = NULL;
1832         sa->dp_rx = NULL;
1833 }
1834
1835 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1836         .rxq_info_get                   = sfc_rx_queue_info_get,
1837         .txq_info_get                   = sfc_tx_queue_info_get,
1838 };
1839
1840 static int
1841 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1842 {
1843         /*
1844          * Device private data has really many process-local pointers.
1845          * Below code should be extremely careful to use data located
1846          * in shared memory only.
1847          */
1848         struct sfc_adapter *sa = dev->data->dev_private;
1849         const struct sfc_dp_rx *dp_rx;
1850         const struct sfc_dp_tx *dp_tx;
1851         int rc;
1852
1853         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1854         if (dp_rx == NULL) {
1855                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1856                 rc = ENOENT;
1857                 goto fail_dp_rx;
1858         }
1859         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1860                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1861                         sa->dp_tx_name);
1862                 rc = EINVAL;
1863                 goto fail_dp_rx_multi_process;
1864         }
1865
1866         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1867         if (dp_tx == NULL) {
1868                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1869                 rc = ENOENT;
1870                 goto fail_dp_tx;
1871         }
1872         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1873                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1874                         sa->dp_tx_name);
1875                 rc = EINVAL;
1876                 goto fail_dp_tx_multi_process;
1877         }
1878
1879         dev->rx_pkt_burst = dp_rx->pkt_burst;
1880         dev->tx_pkt_burst = dp_tx->pkt_burst;
1881         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1882
1883         return 0;
1884
1885 fail_dp_tx_multi_process:
1886 fail_dp_tx:
1887 fail_dp_rx_multi_process:
1888 fail_dp_rx:
1889         return rc;
1890 }
1891
1892 static void
1893 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1894 {
1895         dev->dev_ops = NULL;
1896         dev->tx_pkt_burst = NULL;
1897         dev->rx_pkt_burst = NULL;
1898 }
1899
1900 static void
1901 sfc_register_dp(void)
1902 {
1903         /* Register once */
1904         if (TAILQ_EMPTY(&sfc_dp_head)) {
1905                 /* Prefer EF10 datapath */
1906                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1907                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1908
1909                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1910                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1911                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1912         }
1913 }
1914
1915 static int
1916 sfc_eth_dev_init(struct rte_eth_dev *dev)
1917 {
1918         struct sfc_adapter *sa = dev->data->dev_private;
1919         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1920         int rc;
1921         const efx_nic_cfg_t *encp;
1922         const struct ether_addr *from;
1923
1924         sfc_register_dp();
1925
1926         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1927                 return -sfc_eth_dev_secondary_set_ops(dev);
1928
1929         /* Required for logging */
1930         sa->pci_addr = pci_dev->addr;
1931         sa->port_id = dev->data->port_id;
1932
1933         sa->eth_dev = dev;
1934
1935         /* Copy PCI device info to the dev->data */
1936         rte_eth_copy_pci_info(dev, pci_dev);
1937
1938         sa->logtype_main = sfc_register_logtype(sa, SFC_LOGTYPE_MAIN_STR,
1939                                                 RTE_LOG_NOTICE);
1940
1941         rc = sfc_kvargs_parse(sa);
1942         if (rc != 0)
1943                 goto fail_kvargs_parse;
1944
1945         sfc_log_init(sa, "entry");
1946
1947         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1948         if (dev->data->mac_addrs == NULL) {
1949                 rc = ENOMEM;
1950                 goto fail_mac_addrs;
1951         }
1952
1953         sfc_adapter_lock_init(sa);
1954         sfc_adapter_lock(sa);
1955
1956         sfc_log_init(sa, "probing");
1957         rc = sfc_probe(sa);
1958         if (rc != 0)
1959                 goto fail_probe;
1960
1961         sfc_log_init(sa, "set device ops");
1962         rc = sfc_eth_dev_set_ops(dev);
1963         if (rc != 0)
1964                 goto fail_set_ops;
1965
1966         sfc_log_init(sa, "attaching");
1967         rc = sfc_attach(sa);
1968         if (rc != 0)
1969                 goto fail_attach;
1970
1971         encp = efx_nic_cfg_get(sa->nic);
1972
1973         /*
1974          * The arguments are really reverse order in comparison to
1975          * Linux kernel. Copy from NIC config to Ethernet device data.
1976          */
1977         from = (const struct ether_addr *)(encp->enc_mac_addr);
1978         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1979
1980         sfc_adapter_unlock(sa);
1981
1982         sfc_log_init(sa, "done");
1983         return 0;
1984
1985 fail_attach:
1986         sfc_eth_dev_clear_ops(dev);
1987
1988 fail_set_ops:
1989         sfc_unprobe(sa);
1990
1991 fail_probe:
1992         sfc_adapter_unlock(sa);
1993         sfc_adapter_lock_fini(sa);
1994         rte_free(dev->data->mac_addrs);
1995         dev->data->mac_addrs = NULL;
1996
1997 fail_mac_addrs:
1998         sfc_kvargs_cleanup(sa);
1999
2000 fail_kvargs_parse:
2001         sfc_log_init(sa, "failed %d", rc);
2002         SFC_ASSERT(rc > 0);
2003         return -rc;
2004 }
2005
2006 static int
2007 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2008 {
2009         struct sfc_adapter *sa;
2010
2011         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2012                 sfc_eth_dev_secondary_clear_ops(dev);
2013                 return 0;
2014         }
2015
2016         sa = dev->data->dev_private;
2017         sfc_log_init(sa, "entry");
2018
2019         sfc_adapter_lock(sa);
2020
2021         sfc_eth_dev_clear_ops(dev);
2022
2023         sfc_detach(sa);
2024         sfc_unprobe(sa);
2025
2026         rte_free(dev->data->mac_addrs);
2027         dev->data->mac_addrs = NULL;
2028
2029         sfc_kvargs_cleanup(sa);
2030
2031         sfc_adapter_unlock(sa);
2032         sfc_adapter_lock_fini(sa);
2033
2034         sfc_log_init(sa, "done");
2035
2036         /* Required for logging, so cleanup last */
2037         sa->eth_dev = NULL;
2038         return 0;
2039 }
2040
2041 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2042         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2043         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2044         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2045         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2046         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2047         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2048         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2049         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2050         { .vendor_id = 0 /* sentinel */ }
2051 };
2052
2053 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2054         struct rte_pci_device *pci_dev)
2055 {
2056         return rte_eth_dev_pci_generic_probe(pci_dev,
2057                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2058 }
2059
2060 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2061 {
2062         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2063 }
2064
2065 static struct rte_pci_driver sfc_efx_pmd = {
2066         .id_table = pci_id_sfc_efx_map,
2067         .drv_flags =
2068                 RTE_PCI_DRV_INTR_LSC |
2069                 RTE_PCI_DRV_NEED_MAPPING,
2070         .probe = sfc_eth_dev_pci_probe,
2071         .remove = sfc_eth_dev_pci_remove,
2072 };
2073
2074 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2075 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2076 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2077 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2078         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2079         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2080         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2081         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2082         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2083
2084 RTE_INIT(sfc_driver_register_logtype);
2085 static void
2086 sfc_driver_register_logtype(void)
2087 {
2088         int ret;
2089
2090         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2091                                                    RTE_LOG_NOTICE);
2092         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2093 }