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