drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright(c) 2019-2021 Xilinx, Inc.
   4  * Copyright(c) 2016-2019 Solarflare Communications Inc.
   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 <ethdev_driver.h>
  12 #include <ethdev_pci.h>
  13 #include <rte_pci.h>
  14 #include <rte_bus_pci.h>
  15 #include <rte_errno.h>
  16 #include <rte_string_fns.h>
  17 #include <rte_ether.h>
  18
  19 #include "efx.h"
  20
  21 #include "sfc.h"
  22 #include "sfc_debug.h"
  23 #include "sfc_log.h"
  24 #include "sfc_kvargs.h"
  25 #include "sfc_ev.h"
  26 #include "sfc_rx.h"
  27 #include "sfc_tx.h"
  28 #include "sfc_flow.h"
  29 #include "sfc_dp.h"
  30 #include "sfc_dp_rx.h"
  31 #include "sfc_sw_stats.h"
  32
  33 #define SFC_XSTAT_ID_INVALID_VAL  UINT64_MAX
  34 #define SFC_XSTAT_ID_INVALID_NAME '\0'
  35
  36 uint32_t sfc_logtype_driver;
  37
  38 static struct sfc_dp_list sfc_dp_head =
  39         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  40
  41
  42 static void sfc_eth_dev_clear_ops(struct rte_eth_dev *dev);
  43
  44
  45 static int
  46 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  47 {
  48         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
  49         efx_nic_fw_info_t enfi;
  50         int ret;
  51         int rc;
  52
  53         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  54         if (rc != 0)
  55                 return -rc;
  56
  57         ret = snprintf(fw_version, fw_size,
  58                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  59                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  60                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  61         if (ret < 0)
  62                 return ret;
  63
  64         if (enfi.enfi_dpcpu_fw_ids_valid) {
  65                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  66                 int ret_extra;
  67
  68                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  69                                      fw_size - dpcpu_fw_ids_offset,
  70                                      " rx%" PRIx16 " tx%" PRIx16,
  71                                      enfi.enfi_rx_dpcpu_fw_id,
  72                                      enfi.enfi_tx_dpcpu_fw_id);
  73                 if (ret_extra < 0)
  74                         return ret_extra;
  75
  76                 ret += ret_extra;
  77         }
  78
  79         if (fw_size < (size_t)(++ret))
  80                 return ret;
  81         else
  82                 return 0;
  83 }
  84
  85 static int
  86 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  87 {
  88         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
  89         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
  90         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
  91         struct sfc_rss *rss = &sas->rss;
  92         struct sfc_mae *mae = &sa->mae;
  93         uint64_t txq_offloads_def = 0;
  94
  95         sfc_log_init(sa, "entry");
  96
  97         dev_info->min_mtu = RTE_ETHER_MIN_MTU;
  98         dev_info->max_mtu = EFX_MAC_SDU_MAX;
  99
 100         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 101
 102         dev_info->max_vfs = sa->sriov.num_vfs;
 103
 104         /* Autonegotiation may be disabled */
 105         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 106         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_1000FDX))
 107                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 108         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_10000FDX))
 109                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 110         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_25000FDX))
 111                 dev_info->speed_capa |= ETH_LINK_SPEED_25G;
 112         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_40000FDX))
 113                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 114         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_50000FDX))
 115                 dev_info->speed_capa |= ETH_LINK_SPEED_50G;
 116         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_100000FDX))
 117                 dev_info->speed_capa |= ETH_LINK_SPEED_100G;
 118
 119         dev_info->max_rx_queues = sa->rxq_max;
 120         dev_info->max_tx_queues = sa->txq_max;
 121
 122         /* By default packets are dropped if no descriptors are available */
 123         dev_info->default_rxconf.rx_drop_en = 1;
 124
 125         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 126
 127         /*
 128          * rx_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->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 133                                     dev_info->rx_queue_offload_capa;
 134
 135         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 136
 137         /*
 138          * tx_offload_capa includes both device and queue offloads since
 139          * the latter may be requested on a per device basis which makes
 140          * sense when some offloads are needed to be set on all queues.
 141          */
 142         dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 143                                     dev_info->tx_queue_offload_capa;
 144
 145         if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 146                 txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 147
 148         dev_info->default_txconf.offloads |= txq_offloads_def;
 149
 150         if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
 151                 uint64_t rte_hf = 0;
 152                 unsigned int i;
 153
 154                 for (i = 0; i < rss->hf_map_nb_entries; ++i)
 155                         rte_hf |= rss->hf_map[i].rte;
 156
 157                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 158                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 159                 dev_info->flow_type_rss_offloads = rte_hf;
 160         }
 161
 162         /* Initialize to hardware limits */
 163         dev_info->rx_desc_lim.nb_max = sa->rxq_max_entries;
 164         dev_info->rx_desc_lim.nb_min = sa->rxq_min_entries;
 165         /* The RXQ hardware requires that the descriptor count is a power
 166          * of 2, but rx_desc_lim cannot properly describe that constraint.
 167          */
 168         dev_info->rx_desc_lim.nb_align = sa->rxq_min_entries;
 169
 170         /* Initialize to hardware limits */
 171         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 172         dev_info->tx_desc_lim.nb_min = sa->txq_min_entries;
 173         /*
 174          * The TXQ hardware requires that the descriptor count is a power
 175          * of 2, but tx_desc_lim cannot properly describe that constraint
 176          */
 177         dev_info->tx_desc_lim.nb_align = sa->txq_min_entries;
 178
 179         if (sap->dp_rx->get_dev_info != NULL)
 180                 sap->dp_rx->get_dev_info(dev_info);
 181         if (sap->dp_tx->get_dev_info != NULL)
 182                 sap->dp_tx->get_dev_info(dev_info);
 183
 184         dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
 185                              RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 186
 187         if (mae->status == SFC_MAE_STATUS_SUPPORTED) {
 188                 dev_info->switch_info.name = dev->device->driver->name;
 189                 dev_info->switch_info.domain_id = mae->switch_domain_id;
 190                 dev_info->switch_info.port_id = mae->switch_port_id;
 191         }
 192
 193         return 0;
 194 }
 195
 196 static const uint32_t *
 197 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 198 {
 199         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
 200
 201         return sap->dp_rx->supported_ptypes_get(sap->shared->tunnel_encaps);
 202 }
 203
 204 static int
 205 sfc_dev_configure(struct rte_eth_dev *dev)
 206 {
 207         struct rte_eth_dev_data *dev_data = dev->data;
 208         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 209         int rc;
 210
 211         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 212                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 213
 214         sfc_adapter_lock(sa);
 215         switch (sa->state) {
 216         case SFC_ADAPTER_CONFIGURED:
 217                 /* FALLTHROUGH */
 218         case SFC_ADAPTER_INITIALIZED:
 219                 rc = sfc_configure(sa);
 220                 break;
 221         default:
 222                 sfc_err(sa, "unexpected adapter state %u to configure",
 223                         sa->state);
 224                 rc = EINVAL;
 225                 break;
 226         }
 227         sfc_adapter_unlock(sa);
 228
 229         sfc_log_init(sa, "done %d", rc);
 230         SFC_ASSERT(rc >= 0);
 231         return -rc;
 232 }
 233
 234 static int
 235 sfc_dev_start(struct rte_eth_dev *dev)
 236 {
 237         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 238         int rc;
 239
 240         sfc_log_init(sa, "entry");
 241
 242         sfc_adapter_lock(sa);
 243         rc = sfc_start(sa);
 244         sfc_adapter_unlock(sa);
 245
 246         sfc_log_init(sa, "done %d", rc);
 247         SFC_ASSERT(rc >= 0);
 248         return -rc;
 249 }
 250
 251 static int
 252 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 253 {
 254         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 255         struct rte_eth_link current_link;
 256         int ret;
 257
 258         sfc_log_init(sa, "entry");
 259
 260         if (sa->state != SFC_ADAPTER_STARTED) {
 261                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 262         } else if (wait_to_complete) {
 263                 efx_link_mode_t link_mode;
 264
 265                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 266                         link_mode = EFX_LINK_UNKNOWN;
 267                 sfc_port_link_mode_to_info(link_mode, &current_link);
 268
 269         } else {
 270                 sfc_ev_mgmt_qpoll(sa);
 271                 rte_eth_linkstatus_get(dev, &current_link);
 272         }
 273
 274         ret = rte_eth_linkstatus_set(dev, &current_link);
 275         if (ret == 0)
 276                 sfc_notice(sa, "Link status is %s",
 277                            current_link.link_status ? "UP" : "DOWN");
 278
 279         return ret;
 280 }
 281
 282 static int
 283 sfc_dev_stop(struct rte_eth_dev *dev)
 284 {
 285         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 286
 287         sfc_log_init(sa, "entry");
 288
 289         sfc_adapter_lock(sa);
 290         sfc_stop(sa);
 291         sfc_adapter_unlock(sa);
 292
 293         sfc_log_init(sa, "done");
 294
 295         return 0;
 296 }
 297
 298 static int
 299 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 300 {
 301         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 302         int rc;
 303
 304         sfc_log_init(sa, "entry");
 305
 306         sfc_adapter_lock(sa);
 307         rc = sfc_start(sa);
 308         sfc_adapter_unlock(sa);
 309
 310         SFC_ASSERT(rc >= 0);
 311         return -rc;
 312 }
 313
 314 static int
 315 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 316 {
 317         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 318
 319         sfc_log_init(sa, "entry");
 320
 321         sfc_adapter_lock(sa);
 322         sfc_stop(sa);
 323         sfc_adapter_unlock(sa);
 324
 325         return 0;
 326 }
 327
 328 static void
 329 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
 330 {
 331         free(dev->process_private);
 332         rte_eth_dev_release_port(dev);
 333 }
 334
 335 static int
 336 sfc_dev_close(struct rte_eth_dev *dev)
 337 {
 338         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 339
 340         sfc_log_init(sa, "entry");
 341
 342         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 343                 sfc_eth_dev_secondary_clear_ops(dev);
 344                 return 0;
 345         }
 346
 347         sfc_adapter_lock(sa);
 348         switch (sa->state) {
 349         case SFC_ADAPTER_STARTED:
 350                 sfc_stop(sa);
 351                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 352                 /* FALLTHROUGH */
 353         case SFC_ADAPTER_CONFIGURED:
 354                 sfc_close(sa);
 355                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 356                 /* FALLTHROUGH */
 357         case SFC_ADAPTER_INITIALIZED:
 358                 break;
 359         default:
 360                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 361                 break;
 362         }
 363
 364         /*
 365          * Cleanup all resources.
 366          * Rollback primary process sfc_eth_dev_init() below.
 367          */
 368
 369         sfc_eth_dev_clear_ops(dev);
 370
 371         sfc_detach(sa);
 372         sfc_unprobe(sa);
 373
 374         sfc_kvargs_cleanup(sa);
 375
 376         sfc_adapter_unlock(sa);
 377         sfc_adapter_lock_fini(sa);
 378
 379         sfc_log_init(sa, "done");
 380
 381         /* Required for logging, so cleanup last */
 382         sa->eth_dev = NULL;
 383
 384         free(sa);
 385
 386         return 0;
 387 }
 388
 389 static int
 390 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 391                    boolean_t enabled)
 392 {
 393         struct sfc_port *port;
 394         boolean_t *toggle;
 395         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 396         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 397         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 398         int rc = 0;
 399
 400         sfc_adapter_lock(sa);
 401
 402         port = &sa->port;
 403         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 404
 405         if (*toggle != enabled) {
 406                 *toggle = enabled;
 407
 408                 if (sfc_sa2shared(sa)->isolated) {
 409                         sfc_warn(sa, "isolated mode is active on the port");
 410                         sfc_warn(sa, "the change is to be applied on the next "
 411                                      "start provided that isolated mode is "
 412                                      "disabled prior the next start");
 413                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 414                            ((rc = sfc_set_rx_mode(sa)) != 0)) {
 415                         *toggle = !(enabled);
 416                         sfc_warn(sa, "Failed to %s %s mode, rc = %d",
 417                                  ((enabled) ? "enable" : "disable"), desc, rc);
 418
 419                         /*
 420                          * For promiscuous and all-multicast filters a
 421                          * permission failure should be reported as an
 422                          * unsupported filter.
 423                          */
 424                         if (rc == EPERM)
 425                                 rc = ENOTSUP;
 426                 }
 427         }
 428
 429         sfc_adapter_unlock(sa);
 430         return rc;
 431 }
 432
 433 static int
 434 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 435 {
 436         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 437
 438         SFC_ASSERT(rc >= 0);
 439         return -rc;
 440 }
 441
 442 static int
 443 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 444 {
 445         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 446
 447         SFC_ASSERT(rc >= 0);
 448         return -rc;
 449 }
 450
 451 static int
 452 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 453 {
 454         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 455
 456         SFC_ASSERT(rc >= 0);
 457         return -rc;
 458 }
 459
 460 static int
 461 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 462 {
 463         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 464
 465         SFC_ASSERT(rc >= 0);
 466         return -rc;
 467 }
 468
 469 static int
 470 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t ethdev_qid,
 471                    uint16_t nb_rx_desc, unsigned int socket_id,
 472                    const struct rte_eth_rxconf *rx_conf,
 473                    struct rte_mempool *mb_pool)
 474 {
 475         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 476         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 477         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
 478         struct sfc_rxq_info *rxq_info;
 479         sfc_sw_index_t sw_index;
 480         int rc;
 481
 482         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 483                      ethdev_qid, nb_rx_desc, socket_id);
 484
 485         sfc_adapter_lock(sa);
 486
 487         sw_index = sfc_rxq_sw_index_by_ethdev_rx_qid(sas, sfc_ethdev_qid);
 488         rc = sfc_rx_qinit(sa, sw_index, nb_rx_desc, socket_id,
 489                           rx_conf, mb_pool);
 490         if (rc != 0)
 491                 goto fail_rx_qinit;
 492
 493         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
 494         dev->data->rx_queues[ethdev_qid] = rxq_info->dp;
 495
 496         sfc_adapter_unlock(sa);
 497
 498         return 0;
 499
 500 fail_rx_qinit:
 501         sfc_adapter_unlock(sa);
 502         SFC_ASSERT(rc > 0);
 503         return -rc;
 504 }
 505
 506 static void
 507 sfc_rx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
 508 {
 509         struct sfc_dp_rxq *dp_rxq = dev->data->rx_queues[qid];
 510         struct sfc_rxq *rxq;
 511         struct sfc_adapter *sa;
 512         sfc_sw_index_t sw_index;
 513
 514         if (dp_rxq == NULL)
 515                 return;
 516
 517         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 518         sa = rxq->evq->sa;
 519         sfc_adapter_lock(sa);
 520
 521         sw_index = dp_rxq->dpq.queue_id;
 522
 523         sfc_log_init(sa, "RxQ=%u", sw_index);
 524
 525         sfc_rx_qfini(sa, sw_index);
 526
 527         sfc_adapter_unlock(sa);
 528 }
 529
 530 static int
 531 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t ethdev_qid,
 532                    uint16_t nb_tx_desc, unsigned int socket_id,
 533                    const struct rte_eth_txconf *tx_conf)
 534 {
 535         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 536         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 537         struct sfc_txq_info *txq_info;
 538         sfc_sw_index_t sw_index;
 539         int rc;
 540
 541         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 542                      ethdev_qid, nb_tx_desc, socket_id);
 543
 544         sfc_adapter_lock(sa);
 545
 546         sw_index = sfc_txq_sw_index_by_ethdev_tx_qid(sas, ethdev_qid);
 547         rc = sfc_tx_qinit(sa, sw_index, nb_tx_desc, socket_id, tx_conf);
 548         if (rc != 0)
 549                 goto fail_tx_qinit;
 550
 551         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
 552         dev->data->tx_queues[ethdev_qid] = txq_info->dp;
 553
 554         sfc_adapter_unlock(sa);
 555         return 0;
 556
 557 fail_tx_qinit:
 558         sfc_adapter_unlock(sa);
 559         SFC_ASSERT(rc > 0);
 560         return -rc;
 561 }
 562
 563 static void
 564 sfc_tx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
 565 {
 566         struct sfc_dp_txq *dp_txq = dev->data->tx_queues[qid];
 567         struct sfc_txq *txq;
 568         sfc_sw_index_t sw_index;
 569         struct sfc_adapter *sa;
 570
 571         if (dp_txq == NULL)
 572                 return;
 573
 574         txq = sfc_txq_by_dp_txq(dp_txq);
 575         sw_index = dp_txq->dpq.queue_id;
 576
 577         SFC_ASSERT(txq->evq != NULL);
 578         sa = txq->evq->sa;
 579
 580         sfc_log_init(sa, "TxQ = %u", sw_index);
 581
 582         sfc_adapter_lock(sa);
 583
 584         sfc_tx_qfini(sa, sw_index);
 585
 586         sfc_adapter_unlock(sa);
 587 }
 588
 589 /*
 590  * Some statistics are computed as A - B where A and B each increase
 591  * monotonically with some hardware counter(s) and the counters are read
 592  * asynchronously.
 593  *
 594  * If packet X is counted in A, but not counted in B yet, computed value is
 595  * greater than real.
 596  *
 597  * If packet X is not counted in A at the moment of reading the counter,
 598  * but counted in B at the moment of reading the counter, computed value
 599  * is less than real.
 600  *
 601  * However, counter which grows backward is worse evil than slightly wrong
 602  * value. So, let's try to guarantee that it never happens except may be
 603  * the case when the MAC stats are zeroed as a result of a NIC reset.
 604  */
 605 static void
 606 sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
 607 {
 608         if ((int64_t)(newval - *stat) > 0 || newval == 0)
 609                 *stat = newval;
 610 }
 611
 612 static int
 613 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 614 {
 615         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 616         struct sfc_port *port = &sa->port;
 617         uint64_t *mac_stats;
 618         int ret;
 619
 620         sfc_adapter_lock(sa);
 621
 622         ret = sfc_port_update_mac_stats(sa, B_FALSE);
 623         if (ret != 0)
 624                 goto unlock;
 625
 626         mac_stats = port->mac_stats_buf;
 627
 628         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 629                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 630                 stats->ipackets =
 631                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 632                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 633                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 634                 stats->opackets =
 635                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 636                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 637                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 638                 stats->ibytes =
 639                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 640                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 641                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 642                 stats->obytes =
 643                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 644                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 645                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 646                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 647                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 648
 649                 /* CRC is included in these stats, but shouldn't be */
 650                 stats->ibytes -= stats->ipackets * RTE_ETHER_CRC_LEN;
 651                 stats->obytes -= stats->opackets * RTE_ETHER_CRC_LEN;
 652         } else {
 653                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 654                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 655                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 656
 657                 /* CRC is included in these stats, but shouldn't be */
 658                 stats->ibytes -= mac_stats[EFX_MAC_RX_PKTS] * RTE_ETHER_CRC_LEN;
 659                 stats->obytes -= mac_stats[EFX_MAC_TX_PKTS] * RTE_ETHER_CRC_LEN;
 660
 661                 /*
 662                  * Take into account stats which are whenever supported
 663                  * on EF10. If some stat is not supported by current
 664                  * firmware variant or HW revision, it is guaranteed
 665                  * to be zero in mac_stats.
 666                  */
 667                 stats->imissed =
 668                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 669                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 670                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 671                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 672                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 673                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 674                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 675                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 676                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 677                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 678                 stats->ierrors =
 679                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 680                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 681                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 682                 /* no oerrors counters supported on EF10 */
 683
 684                 /* Exclude missed, errors and pauses from Rx packets */
 685                 sfc_update_diff_stat(&port->ipackets,
 686                         mac_stats[EFX_MAC_RX_PKTS] -
 687                         mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
 688                         stats->imissed - stats->ierrors);
 689                 stats->ipackets = port->ipackets;
 690         }
 691
 692 unlock:
 693         sfc_adapter_unlock(sa);
 694         SFC_ASSERT(ret >= 0);
 695         return -ret;
 696 }
 697
 698 static int
 699 sfc_stats_reset(struct rte_eth_dev *dev)
 700 {
 701         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 702         struct sfc_port *port = &sa->port;
 703         int rc;
 704
 705         sfc_adapter_lock(sa);
 706
 707         if (sa->state != SFC_ADAPTER_STARTED) {
 708                 /*
 709                  * The operation cannot be done if port is not started; it
 710                  * will be scheduled to be done during the next port start
 711                  */
 712                 port->mac_stats_reset_pending = B_TRUE;
 713                 sfc_adapter_unlock(sa);
 714                 return 0;
 715         }
 716
 717         rc = sfc_port_reset_mac_stats(sa);
 718         if (rc != 0)
 719                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 720
 721         sfc_sw_xstats_reset(sa);
 722
 723         sfc_adapter_unlock(sa);
 724
 725         SFC_ASSERT(rc >= 0);
 726         return -rc;
 727 }
 728
 729 static unsigned int
 730 sfc_xstats_get_nb_supported(struct sfc_adapter *sa)
 731 {
 732         struct sfc_port *port = &sa->port;
 733         unsigned int nb_supported;
 734
 735         sfc_adapter_lock(sa);
 736         nb_supported = port->mac_stats_nb_supported +
 737                        sfc_sw_xstats_get_nb_supported(sa);
 738         sfc_adapter_unlock(sa);
 739
 740         return nb_supported;
 741 }
 742
 743 static int
 744 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 745                unsigned int xstats_count)
 746 {
 747         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 748         unsigned int nb_written = 0;
 749         unsigned int nb_supported = 0;
 750         int rc;
 751
 752         if (unlikely(xstats == NULL))
 753                 return sfc_xstats_get_nb_supported(sa);
 754
 755         rc = sfc_port_get_mac_stats(sa, xstats, xstats_count, &nb_written);
 756         if (rc < 0)
 757                 return rc;
 758
 759         nb_supported = rc;
 760         sfc_sw_xstats_get_vals(sa, xstats, xstats_count, &nb_written,
 761                                &nb_supported);
 762
 763         return nb_supported;
 764 }
 765
 766 static int
 767 sfc_xstats_get_names(struct rte_eth_dev *dev,
 768                      struct rte_eth_xstat_name *xstats_names,
 769                      unsigned int xstats_count)
 770 {
 771         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 772         struct sfc_port *port = &sa->port;
 773         unsigned int i;
 774         unsigned int nstats = 0;
 775         unsigned int nb_written = 0;
 776         int ret;
 777
 778         if (unlikely(xstats_names == NULL))
 779                 return sfc_xstats_get_nb_supported(sa);
 780
 781         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 782                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 783                         if (nstats < xstats_count) {
 784                                 strlcpy(xstats_names[nstats].name,
 785                                         efx_mac_stat_name(sa->nic, i),
 786                                         sizeof(xstats_names[0].name));
 787                                 nb_written++;
 788                         }
 789                         nstats++;
 790                 }
 791         }
 792
 793         ret = sfc_sw_xstats_get_names(sa, xstats_names, xstats_count,
 794                                       &nb_written, &nstats);
 795         if (ret != 0) {
 796                 SFC_ASSERT(ret < 0);
 797                 return ret;
 798         }
 799
 800         return nstats;
 801 }
 802
 803 static int
 804 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 805                      uint64_t *values, unsigned int n)
 806 {
 807         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 808         struct sfc_port *port = &sa->port;
 809         unsigned int nb_supported;
 810         unsigned int i;
 811         int rc;
 812
 813         if (unlikely(ids == NULL || values == NULL))
 814                 return -EINVAL;
 815
 816         /*
 817          * Values array could be filled in nonsequential order. Fill values with
 818          * constant indicating invalid ID first.
 819          */
 820         for (i = 0; i < n; i++)
 821                 values[i] = SFC_XSTAT_ID_INVALID_VAL;
 822
 823         rc = sfc_port_get_mac_stats_by_id(sa, ids, values, n);
 824         if (rc != 0)
 825                 return rc;
 826
 827         nb_supported = port->mac_stats_nb_supported;
 828         sfc_sw_xstats_get_vals_by_id(sa, ids, values, n, &nb_supported);
 829
 830         /* Return number of written stats before invalid ID is encountered. */
 831         for (i = 0; i < n; i++) {
 832                 if (values[i] == SFC_XSTAT_ID_INVALID_VAL)
 833                         return i;
 834         }
 835
 836         return n;
 837 }
 838
 839 static int
 840 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 841                            const uint64_t *ids,
 842                            struct rte_eth_xstat_name *xstats_names,
 843                            unsigned int size)
 844 {
 845         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 846         struct sfc_port *port = &sa->port;
 847         unsigned int nb_supported;
 848         unsigned int i;
 849         int ret;
 850
 851         if (unlikely(xstats_names == NULL && ids != NULL) ||
 852             unlikely(xstats_names != NULL && ids == NULL))
 853                 return -EINVAL;
 854
 855         if (unlikely(xstats_names == NULL && ids == NULL))
 856                 return sfc_xstats_get_nb_supported(sa);
 857
 858         /*
 859          * Names array could be filled in nonsequential order. Fill names with
 860          * string indicating invalid ID first.
 861          */
 862         for (i = 0; i < size; i++)
 863                 xstats_names[i].name[0] = SFC_XSTAT_ID_INVALID_NAME;
 864
 865         sfc_adapter_lock(sa);
 866
 867         SFC_ASSERT(port->mac_stats_nb_supported <=
 868                    RTE_DIM(port->mac_stats_by_id));
 869
 870         for (i = 0; i < size; i++) {
 871                 if (ids[i] < port->mac_stats_nb_supported) {
 872                         strlcpy(xstats_names[i].name,
 873                                 efx_mac_stat_name(sa->nic,
 874                                                  port->mac_stats_by_id[ids[i]]),
 875                                 sizeof(xstats_names[0].name));
 876                 }
 877         }
 878
 879         nb_supported = port->mac_stats_nb_supported;
 880
 881         sfc_adapter_unlock(sa);
 882
 883         ret = sfc_sw_xstats_get_names_by_id(sa, ids, xstats_names, size,
 884                                             &nb_supported);
 885         if (ret != 0) {
 886                 SFC_ASSERT(ret < 0);
 887                 return ret;
 888         }
 889
 890         /* Return number of written names before invalid ID is encountered. */
 891         for (i = 0; i < size; i++) {
 892                 if (xstats_names[i].name[0] == SFC_XSTAT_ID_INVALID_NAME)
 893                         return i;
 894         }
 895
 896         return size;
 897 }
 898
 899 static int
 900 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 901 {
 902         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 903         unsigned int wanted_fc, link_fc;
 904
 905         memset(fc_conf, 0, sizeof(*fc_conf));
 906
 907         sfc_adapter_lock(sa);
 908
 909         if (sa->state == SFC_ADAPTER_STARTED)
 910                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 911         else
 912                 link_fc = sa->port.flow_ctrl;
 913
 914         switch (link_fc) {
 915         case 0:
 916                 fc_conf->mode = RTE_FC_NONE;
 917                 break;
 918         case EFX_FCNTL_RESPOND:
 919                 fc_conf->mode = RTE_FC_RX_PAUSE;
 920                 break;
 921         case EFX_FCNTL_GENERATE:
 922                 fc_conf->mode = RTE_FC_TX_PAUSE;
 923                 break;
 924         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 925                 fc_conf->mode = RTE_FC_FULL;
 926                 break;
 927         default:
 928                 sfc_err(sa, "%s: unexpected flow control value %#x",
 929                         __func__, link_fc);
 930         }
 931
 932         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 933
 934         sfc_adapter_unlock(sa);
 935
 936         return 0;
 937 }
 938
 939 static int
 940 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 941 {
 942         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 943         struct sfc_port *port = &sa->port;
 944         unsigned int fcntl;
 945         int rc;
 946
 947         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 948             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 949             fc_conf->mac_ctrl_frame_fwd != 0) {
 950                 sfc_err(sa, "unsupported flow control settings specified");
 951                 rc = EINVAL;
 952                 goto fail_inval;
 953         }
 954
 955         switch (fc_conf->mode) {
 956         case RTE_FC_NONE:
 957                 fcntl = 0;
 958                 break;
 959         case RTE_FC_RX_PAUSE:
 960                 fcntl = EFX_FCNTL_RESPOND;
 961                 break;
 962         case RTE_FC_TX_PAUSE:
 963                 fcntl = EFX_FCNTL_GENERATE;
 964                 break;
 965         case RTE_FC_FULL:
 966                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 967                 break;
 968         default:
 969                 rc = EINVAL;
 970                 goto fail_inval;
 971         }
 972
 973         sfc_adapter_lock(sa);
 974
 975         if (sa->state == SFC_ADAPTER_STARTED) {
 976                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 977                 if (rc != 0)
 978                         goto fail_mac_fcntl_set;
 979         }
 980
 981         port->flow_ctrl = fcntl;
 982         port->flow_ctrl_autoneg = fc_conf->autoneg;
 983
 984         sfc_adapter_unlock(sa);
 985
 986         return 0;
 987
 988 fail_mac_fcntl_set:
 989         sfc_adapter_unlock(sa);
 990 fail_inval:
 991         SFC_ASSERT(rc > 0);
 992         return -rc;
 993 }
 994
 995 static int
 996 sfc_check_scatter_on_all_rx_queues(struct sfc_adapter *sa, size_t pdu)
 997 {
 998         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
 999         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
1000         boolean_t scatter_enabled;
1001         const char *error;
1002         unsigned int i;
1003
1004         for (i = 0; i < sas->rxq_count; i++) {
1005                 if ((sas->rxq_info[i].state & SFC_RXQ_INITIALIZED) == 0)
1006                         continue;
1007
1008                 scatter_enabled = (sas->rxq_info[i].type_flags &
1009                                    EFX_RXQ_FLAG_SCATTER);
1010
1011                 if (!sfc_rx_check_scatter(pdu, sa->rxq_ctrl[i].buf_size,
1012                                           encp->enc_rx_prefix_size,
1013                                           scatter_enabled,
1014                                           encp->enc_rx_scatter_max, &error)) {
1015                         sfc_err(sa, "MTU check for RxQ %u failed: %s", i,
1016                                 error);
1017                         return EINVAL;
1018                 }
1019         }
1020
1021         return 0;
1022 }
1023
1024 static int
1025 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
1026 {
1027         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1028         size_t pdu = EFX_MAC_PDU(mtu);
1029         size_t old_pdu;
1030         int rc;
1031
1032         sfc_log_init(sa, "mtu=%u", mtu);
1033
1034         rc = EINVAL;
1035         if (pdu < EFX_MAC_PDU_MIN) {
1036                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
1037                         (unsigned int)mtu, (unsigned int)pdu,
1038                         EFX_MAC_PDU_MIN);
1039                 goto fail_inval;
1040         }
1041         if (pdu > EFX_MAC_PDU_MAX) {
1042                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
1043                         (unsigned int)mtu, (unsigned int)pdu,
1044                         (unsigned int)EFX_MAC_PDU_MAX);
1045                 goto fail_inval;
1046         }
1047
1048         sfc_adapter_lock(sa);
1049
1050         rc = sfc_check_scatter_on_all_rx_queues(sa, pdu);
1051         if (rc != 0)
1052                 goto fail_check_scatter;
1053
1054         if (pdu != sa->port.pdu) {
1055                 if (sa->state == SFC_ADAPTER_STARTED) {
1056                         sfc_stop(sa);
1057
1058                         old_pdu = sa->port.pdu;
1059                         sa->port.pdu = pdu;
1060                         rc = sfc_start(sa);
1061                         if (rc != 0)
1062                                 goto fail_start;
1063                 } else {
1064                         sa->port.pdu = pdu;
1065                 }
1066         }
1067
1068         /*
1069          * The driver does not use it, but other PMDs update jumbo frame
1070          * flag and max_rx_pkt_len when MTU is set.
1071          */
1072         if (mtu > RTE_ETHER_MTU) {
1073                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
1074                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
1075         }
1076
1077         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
1078
1079         sfc_adapter_unlock(sa);
1080
1081         sfc_log_init(sa, "done");
1082         return 0;
1083
1084 fail_start:
1085         sa->port.pdu = old_pdu;
1086         if (sfc_start(sa) != 0)
1087                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
1088                         "PDU max size - port is stopped",
1089                         (unsigned int)pdu, (unsigned int)old_pdu);
1090
1091 fail_check_scatter:
1092         sfc_adapter_unlock(sa);
1093
1094 fail_inval:
1095         sfc_log_init(sa, "failed %d", rc);
1096         SFC_ASSERT(rc > 0);
1097         return -rc;
1098 }
1099 static int
1100 sfc_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1101 {
1102         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1103         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
1104         struct sfc_port *port = &sa->port;
1105         struct rte_ether_addr *old_addr = &dev->data->mac_addrs[0];
1106         int rc = 0;
1107
1108         sfc_adapter_lock(sa);
1109
1110         if (rte_is_same_ether_addr(mac_addr, &port->default_mac_addr))
1111                 goto unlock;
1112
1113         /*
1114          * Copy the address to the device private data so that
1115          * it could be recalled in the case of adapter restart.
1116          */
1117         rte_ether_addr_copy(mac_addr, &port->default_mac_addr);
1118
1119         /*
1120          * Neither of the two following checks can return
1121          * an error. The new MAC address is preserved in
1122          * the device private data and can be activated
1123          * on the next port start if the user prevents
1124          * isolated mode from being enabled.
1125          */
1126         if (sfc_sa2shared(sa)->isolated) {
1127                 sfc_warn(sa, "isolated mode is active on the port");
1128                 sfc_warn(sa, "will not set MAC address");
1129                 goto unlock;
1130         }
1131
1132         if (sa->state != SFC_ADAPTER_STARTED) {
1133                 sfc_notice(sa, "the port is not started");
1134                 sfc_notice(sa, "the new MAC address will be set on port start");
1135
1136                 goto unlock;
1137         }
1138
1139         if (encp->enc_allow_set_mac_with_installed_filters) {
1140                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
1141                 if (rc != 0) {
1142                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
1143                         goto unlock;
1144                 }
1145
1146                 /*
1147                  * Changing the MAC address by means of MCDI request
1148                  * has no effect on received traffic, therefore
1149                  * we also need to update unicast filters
1150                  */
1151                 rc = sfc_set_rx_mode_unchecked(sa);
1152                 if (rc != 0) {
1153                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
1154                         /* Rollback the old address */
1155                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
1156                         (void)sfc_set_rx_mode_unchecked(sa);
1157                 }
1158         } else {
1159                 sfc_warn(sa, "cannot set MAC address with filters installed");
1160                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
1161                 sfc_warn(sa, "(some traffic may be dropped)");
1162
1163                 /*
1164                  * Since setting MAC address with filters installed is not
1165                  * allowed on the adapter, the new MAC address will be set
1166                  * by means of adapter restart. sfc_start() shall retrieve
1167                  * the new address from the device private data and set it.
1168                  */
1169                 sfc_stop(sa);
1170                 rc = sfc_start(sa);
1171                 if (rc != 0)
1172                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1173         }
1174
1175 unlock:
1176         if (rc != 0)
1177                 rte_ether_addr_copy(old_addr, &port->default_mac_addr);
1178
1179         sfc_adapter_unlock(sa);
1180
1181         SFC_ASSERT(rc >= 0);
1182         return -rc;
1183 }
1184
1185
1186 static int
1187 sfc_set_mc_addr_list(struct rte_eth_dev *dev,
1188                 struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr)
1189 {
1190         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1191         struct sfc_port *port = &sa->port;
1192         uint8_t *mc_addrs = port->mcast_addrs;
1193         int rc;
1194         unsigned int i;
1195
1196         if (sfc_sa2shared(sa)->isolated) {
1197                 sfc_err(sa, "isolated mode is active on the port");
1198                 sfc_err(sa, "will not set multicast address list");
1199                 return -ENOTSUP;
1200         }
1201
1202         if (mc_addrs == NULL)
1203                 return -ENOBUFS;
1204
1205         if (nb_mc_addr > port->max_mcast_addrs) {
1206                 sfc_err(sa, "too many multicast addresses: %u > %u",
1207                          nb_mc_addr, port->max_mcast_addrs);
1208                 return -EINVAL;
1209         }
1210
1211         for (i = 0; i < nb_mc_addr; ++i) {
1212                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1213                                  EFX_MAC_ADDR_LEN);
1214                 mc_addrs += EFX_MAC_ADDR_LEN;
1215         }
1216
1217         port->nb_mcast_addrs = nb_mc_addr;
1218
1219         if (sa->state != SFC_ADAPTER_STARTED)
1220                 return 0;
1221
1222         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1223                                         port->nb_mcast_addrs);
1224         if (rc != 0)
1225                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1226
1227         SFC_ASSERT(rc >= 0);
1228         return -rc;
1229 }
1230
1231 /*
1232  * The function is used by the secondary process as well. It must not
1233  * use any process-local pointers from the adapter data.
1234  */
1235 static void
1236 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t ethdev_qid,
1237                       struct rte_eth_rxq_info *qinfo)
1238 {
1239         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1240         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1241         struct sfc_rxq_info *rxq_info;
1242
1243         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1244
1245         qinfo->mp = rxq_info->refill_mb_pool;
1246         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1247         qinfo->conf.rx_drop_en = 1;
1248         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1249         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1250         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1251                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1252                 qinfo->scattered_rx = 1;
1253         }
1254         qinfo->nb_desc = rxq_info->entries;
1255 }
1256
1257 /*
1258  * The function is used by the secondary process as well. It must not
1259  * use any process-local pointers from the adapter data.
1260  */
1261 static void
1262 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t ethdev_qid,
1263                       struct rte_eth_txq_info *qinfo)
1264 {
1265         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1266         struct sfc_txq_info *txq_info;
1267
1268         SFC_ASSERT(ethdev_qid < sas->ethdev_txq_count);
1269
1270         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
1271
1272         memset(qinfo, 0, sizeof(*qinfo));
1273
1274         qinfo->conf.offloads = txq_info->offloads;
1275         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1276         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1277         qinfo->nb_desc = txq_info->entries;
1278 }
1279
1280 /*
1281  * The function is used by the secondary process as well. It must not
1282  * use any process-local pointers from the adapter data.
1283  */
1284 static uint32_t
1285 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1286 {
1287         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1288         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1289         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1290         struct sfc_rxq_info *rxq_info;
1291
1292         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1293
1294         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1295                 return 0;
1296
1297         return sap->dp_rx->qdesc_npending(rxq_info->dp);
1298 }
1299
1300 /*
1301  * The function is used by the secondary process as well. It must not
1302  * use any process-local pointers from the adapter data.
1303  */
1304 static int
1305 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1306 {
1307         struct sfc_dp_rxq *dp_rxq = queue;
1308         const struct sfc_dp_rx *dp_rx;
1309
1310         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1311
1312         return dp_rx->qdesc_status(dp_rxq, offset);
1313 }
1314
1315 /*
1316  * The function is used by the secondary process as well. It must not
1317  * use any process-local pointers from the adapter data.
1318  */
1319 static int
1320 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1321 {
1322         struct sfc_dp_txq *dp_txq = queue;
1323         const struct sfc_dp_tx *dp_tx;
1324
1325         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1326
1327         return dp_tx->qdesc_status(dp_txq, offset);
1328 }
1329
1330 static int
1331 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1332 {
1333         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1334         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1335         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1336         struct sfc_rxq_info *rxq_info;
1337         sfc_sw_index_t sw_index;
1338         int rc;
1339
1340         sfc_log_init(sa, "RxQ=%u", ethdev_qid);
1341
1342         sfc_adapter_lock(sa);
1343
1344         rc = EINVAL;
1345         if (sa->state != SFC_ADAPTER_STARTED)
1346                 goto fail_not_started;
1347
1348         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1349         if (rxq_info->state != SFC_RXQ_INITIALIZED)
1350                 goto fail_not_setup;
1351
1352         sw_index = sfc_rxq_sw_index_by_ethdev_rx_qid(sas, sfc_ethdev_qid);
1353         rc = sfc_rx_qstart(sa, sw_index);
1354         if (rc != 0)
1355                 goto fail_rx_qstart;
1356
1357         rxq_info->deferred_started = B_TRUE;
1358
1359         sfc_adapter_unlock(sa);
1360
1361         return 0;
1362
1363 fail_rx_qstart:
1364 fail_not_setup:
1365 fail_not_started:
1366         sfc_adapter_unlock(sa);
1367         SFC_ASSERT(rc > 0);
1368         return -rc;
1369 }
1370
1371 static int
1372 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1373 {
1374         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1375         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1376         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1377         struct sfc_rxq_info *rxq_info;
1378         sfc_sw_index_t sw_index;
1379
1380         sfc_log_init(sa, "RxQ=%u", ethdev_qid);
1381
1382         sfc_adapter_lock(sa);
1383
1384         sw_index = sfc_rxq_sw_index_by_ethdev_rx_qid(sas, sfc_ethdev_qid);
1385         sfc_rx_qstop(sa, sw_index);
1386
1387         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1388         rxq_info->deferred_started = B_FALSE;
1389
1390         sfc_adapter_unlock(sa);
1391
1392         return 0;
1393 }
1394
1395 static int
1396 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1397 {
1398         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1399         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1400         struct sfc_txq_info *txq_info;
1401         sfc_sw_index_t sw_index;
1402         int rc;
1403
1404         sfc_log_init(sa, "TxQ = %u", ethdev_qid);
1405
1406         sfc_adapter_lock(sa);
1407
1408         rc = EINVAL;
1409         if (sa->state != SFC_ADAPTER_STARTED)
1410                 goto fail_not_started;
1411
1412         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
1413         if (txq_info->state != SFC_TXQ_INITIALIZED)
1414                 goto fail_not_setup;
1415
1416         sw_index = sfc_txq_sw_index_by_ethdev_tx_qid(sas, ethdev_qid);
1417         rc = sfc_tx_qstart(sa, sw_index);
1418         if (rc != 0)
1419                 goto fail_tx_qstart;
1420
1421         txq_info->deferred_started = B_TRUE;
1422
1423         sfc_adapter_unlock(sa);
1424         return 0;
1425
1426 fail_tx_qstart:
1427
1428 fail_not_setup:
1429 fail_not_started:
1430         sfc_adapter_unlock(sa);
1431         SFC_ASSERT(rc > 0);
1432         return -rc;
1433 }
1434
1435 static int
1436 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1437 {
1438         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1439         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1440         struct sfc_txq_info *txq_info;
1441         sfc_sw_index_t sw_index;
1442
1443         sfc_log_init(sa, "TxQ = %u", ethdev_qid);
1444
1445         sfc_adapter_lock(sa);
1446
1447         sw_index = sfc_txq_sw_index_by_ethdev_tx_qid(sas, ethdev_qid);
1448         sfc_tx_qstop(sa, sw_index);
1449
1450         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
1451         txq_info->deferred_started = B_FALSE;
1452
1453         sfc_adapter_unlock(sa);
1454         return 0;
1455 }
1456
1457 static efx_tunnel_protocol_t
1458 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1459 {
1460         switch (rte_type) {
1461         case RTE_TUNNEL_TYPE_VXLAN:
1462                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1463         case RTE_TUNNEL_TYPE_GENEVE:
1464                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1465         default:
1466                 return EFX_TUNNEL_NPROTOS;
1467         }
1468 }
1469
1470 enum sfc_udp_tunnel_op_e {
1471         SFC_UDP_TUNNEL_ADD_PORT,
1472         SFC_UDP_TUNNEL_DEL_PORT,
1473 };
1474
1475 static int
1476 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1477                       struct rte_eth_udp_tunnel *tunnel_udp,
1478                       enum sfc_udp_tunnel_op_e op)
1479 {
1480         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1481         efx_tunnel_protocol_t tunnel_proto;
1482         int rc;
1483
1484         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1485                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1486                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1487                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1488
1489         tunnel_proto =
1490                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1491         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1492                 rc = ENOTSUP;
1493                 goto fail_bad_proto;
1494         }
1495
1496         sfc_adapter_lock(sa);
1497
1498         switch (op) {
1499         case SFC_UDP_TUNNEL_ADD_PORT:
1500                 rc = efx_tunnel_config_udp_add(sa->nic,
1501                                                tunnel_udp->udp_port,
1502                                                tunnel_proto);
1503                 break;
1504         case SFC_UDP_TUNNEL_DEL_PORT:
1505                 rc = efx_tunnel_config_udp_remove(sa->nic,
1506                                                   tunnel_udp->udp_port,
1507                                                   tunnel_proto);
1508                 break;
1509         default:
1510                 rc = EINVAL;
1511                 goto fail_bad_op;
1512         }
1513
1514         if (rc != 0)
1515                 goto fail_op;
1516
1517         if (sa->state == SFC_ADAPTER_STARTED) {
1518                 rc = efx_tunnel_reconfigure(sa->nic);
1519                 if (rc == EAGAIN) {
1520                         /*
1521                          * Configuration is accepted by FW and MC reboot
1522                          * is initiated to apply the changes. MC reboot
1523                          * will be handled in a usual way (MC reboot
1524                          * event on management event queue and adapter
1525                          * restart).
1526                          */
1527                         rc = 0;
1528                 } else if (rc != 0) {
1529                         goto fail_reconfigure;
1530                 }
1531         }
1532
1533         sfc_adapter_unlock(sa);
1534         return 0;
1535
1536 fail_reconfigure:
1537         /* Remove/restore entry since the change makes the trouble */
1538         switch (op) {
1539         case SFC_UDP_TUNNEL_ADD_PORT:
1540                 (void)efx_tunnel_config_udp_remove(sa->nic,
1541                                                    tunnel_udp->udp_port,
1542                                                    tunnel_proto);
1543                 break;
1544         case SFC_UDP_TUNNEL_DEL_PORT:
1545                 (void)efx_tunnel_config_udp_add(sa->nic,
1546                                                 tunnel_udp->udp_port,
1547                                                 tunnel_proto);
1548                 break;
1549         }
1550
1551 fail_op:
1552 fail_bad_op:
1553         sfc_adapter_unlock(sa);
1554
1555 fail_bad_proto:
1556         SFC_ASSERT(rc > 0);
1557         return -rc;
1558 }
1559
1560 static int
1561 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1562                             struct rte_eth_udp_tunnel *tunnel_udp)
1563 {
1564         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1565 }
1566
1567 static int
1568 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1569                             struct rte_eth_udp_tunnel *tunnel_udp)
1570 {
1571         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1572 }
1573
1574 /*
1575  * The function is used by the secondary process as well. It must not
1576  * use any process-local pointers from the adapter data.
1577  */
1578 static int
1579 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1580                           struct rte_eth_rss_conf *rss_conf)
1581 {
1582         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1583         struct sfc_rss *rss = &sas->rss;
1584
1585         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1586                 return -ENOTSUP;
1587
1588         /*
1589          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1590          * hence, conversion is done here to derive a correct set of ETH_RSS
1591          * flags which corresponds to the active EFX configuration stored
1592          * locally in 'sfc_adapter' and kept up-to-date
1593          */
1594         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(rss, rss->hash_types);
1595         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1596         if (rss_conf->rss_key != NULL)
1597                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1598
1599         return 0;
1600 }
1601
1602 static int
1603 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1604                         struct rte_eth_rss_conf *rss_conf)
1605 {
1606         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1607         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1608         unsigned int efx_hash_types;
1609         uint32_t contexts[] = {EFX_RSS_CONTEXT_DEFAULT, rss->dummy_rss_context};
1610         unsigned int n_contexts;
1611         unsigned int mode_i = 0;
1612         unsigned int key_i = 0;
1613         unsigned int i = 0;
1614         int rc = 0;
1615
1616         n_contexts = rss->dummy_rss_context == EFX_RSS_CONTEXT_DEFAULT ? 1 : 2;
1617
1618         if (sfc_sa2shared(sa)->isolated)
1619                 return -ENOTSUP;
1620
1621         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1622                 sfc_err(sa, "RSS is not available");
1623                 return -ENOTSUP;
1624         }
1625
1626         if (rss->channels == 0) {
1627                 sfc_err(sa, "RSS is not configured");
1628                 return -EINVAL;
1629         }
1630
1631         if ((rss_conf->rss_key != NULL) &&
1632             (rss_conf->rss_key_len != sizeof(rss->key))) {
1633                 sfc_err(sa, "RSS key size is wrong (should be %zu)",
1634                         sizeof(rss->key));
1635                 return -EINVAL;
1636         }
1637
1638         sfc_adapter_lock(sa);
1639
1640         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1641         if (rc != 0)
1642                 goto fail_rx_hf_rte_to_efx;
1643
1644         for (mode_i = 0; mode_i < n_contexts; mode_i++) {
1645                 rc = efx_rx_scale_mode_set(sa->nic, contexts[mode_i],
1646                                            rss->hash_alg, efx_hash_types,
1647                                            B_TRUE);
1648                 if (rc != 0)
1649                         goto fail_scale_mode_set;
1650         }
1651
1652         if (rss_conf->rss_key != NULL) {
1653                 if (sa->state == SFC_ADAPTER_STARTED) {
1654                         for (key_i = 0; key_i < n_contexts; key_i++) {
1655                                 rc = efx_rx_scale_key_set(sa->nic,
1656                                                           contexts[key_i],
1657                                                           rss_conf->rss_key,
1658                                                           sizeof(rss->key));
1659                                 if (rc != 0)
1660                                         goto fail_scale_key_set;
1661                         }
1662                 }
1663
1664                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1665         }
1666
1667         rss->hash_types = efx_hash_types;
1668
1669         sfc_adapter_unlock(sa);
1670
1671         return 0;
1672
1673 fail_scale_key_set:
1674         for (i = 0; i < key_i; i++) {
1675                 if (efx_rx_scale_key_set(sa->nic, contexts[i], rss->key,
1676                                          sizeof(rss->key)) != 0)
1677                         sfc_err(sa, "failed to restore RSS key");
1678         }
1679
1680 fail_scale_mode_set:
1681         for (i = 0; i < mode_i; i++) {
1682                 if (efx_rx_scale_mode_set(sa->nic, contexts[i],
1683                                           EFX_RX_HASHALG_TOEPLITZ,
1684                                           rss->hash_types, B_TRUE) != 0)
1685                         sfc_err(sa, "failed to restore RSS mode");
1686         }
1687
1688 fail_rx_hf_rte_to_efx:
1689         sfc_adapter_unlock(sa);
1690         return -rc;
1691 }
1692
1693 /*
1694  * The function is used by the secondary process as well. It must not
1695  * use any process-local pointers from the adapter data.
1696  */
1697 static int
1698 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1699                        struct rte_eth_rss_reta_entry64 *reta_conf,
1700                        uint16_t reta_size)
1701 {
1702         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1703         struct sfc_rss *rss = &sas->rss;
1704         int entry;
1705
1706         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || sas->isolated)
1707                 return -ENOTSUP;
1708
1709         if (rss->channels == 0)
1710                 return -EINVAL;
1711
1712         if (reta_size != EFX_RSS_TBL_SIZE)
1713                 return -EINVAL;
1714
1715         for (entry = 0; entry < reta_size; entry++) {
1716                 int grp = entry / RTE_RETA_GROUP_SIZE;
1717                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1718
1719                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1720                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1721         }
1722
1723         return 0;
1724 }
1725
1726 static int
1727 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1728                         struct rte_eth_rss_reta_entry64 *reta_conf,
1729                         uint16_t reta_size)
1730 {
1731         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1732         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1733         unsigned int *rss_tbl_new;
1734         uint16_t entry;
1735         int rc = 0;
1736
1737
1738         if (sfc_sa2shared(sa)->isolated)
1739                 return -ENOTSUP;
1740
1741         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1742                 sfc_err(sa, "RSS is not available");
1743                 return -ENOTSUP;
1744         }
1745
1746         if (rss->channels == 0) {
1747                 sfc_err(sa, "RSS is not configured");
1748                 return -EINVAL;
1749         }
1750
1751         if (reta_size != EFX_RSS_TBL_SIZE) {
1752                 sfc_err(sa, "RETA size is wrong (should be %u)",
1753                         EFX_RSS_TBL_SIZE);
1754                 return -EINVAL;
1755         }
1756
1757         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1758         if (rss_tbl_new == NULL)
1759                 return -ENOMEM;
1760
1761         sfc_adapter_lock(sa);
1762
1763         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1764
1765         for (entry = 0; entry < reta_size; entry++) {
1766                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1767                 struct rte_eth_rss_reta_entry64 *grp;
1768
1769                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1770
1771                 if (grp->mask & (1ull << grp_idx)) {
1772                         if (grp->reta[grp_idx] >= rss->channels) {
1773                                 rc = EINVAL;
1774                                 goto bad_reta_entry;
1775                         }
1776                         rss_tbl_new[entry] = grp->reta[grp_idx];
1777                 }
1778         }
1779
1780         if (sa->state == SFC_ADAPTER_STARTED) {
1781                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1782                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1783                 if (rc != 0)
1784                         goto fail_scale_tbl_set;
1785         }
1786
1787         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1788
1789 fail_scale_tbl_set:
1790 bad_reta_entry:
1791         sfc_adapter_unlock(sa);
1792
1793         rte_free(rss_tbl_new);
1794
1795         SFC_ASSERT(rc >= 0);
1796         return -rc;
1797 }
1798
1799 static int
1800 sfc_dev_flow_ops_get(struct rte_eth_dev *dev __rte_unused,
1801                      const struct rte_flow_ops **ops)
1802 {
1803         *ops = &sfc_flow_ops;
1804         return 0;
1805 }
1806
1807 static int
1808 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1809 {
1810         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1811
1812         /*
1813          * If Rx datapath does not provide callback to check mempool,
1814          * all pools are supported.
1815          */
1816         if (sap->dp_rx->pool_ops_supported == NULL)
1817                 return 1;
1818
1819         return sap->dp_rx->pool_ops_supported(pool);
1820 }
1821
1822 static int
1823 sfc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1824 {
1825         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1826         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1827         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1828         struct sfc_rxq_info *rxq_info;
1829
1830         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1831
1832         return sap->dp_rx->intr_enable(rxq_info->dp);
1833 }
1834
1835 static int
1836 sfc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1837 {
1838         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1839         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1840         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1841         struct sfc_rxq_info *rxq_info;
1842
1843         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1844
1845         return sap->dp_rx->intr_disable(rxq_info->dp);
1846 }
1847
1848 static const struct eth_dev_ops sfc_eth_dev_ops = {
1849         .dev_configure                  = sfc_dev_configure,
1850         .dev_start                      = sfc_dev_start,
1851         .dev_stop                       = sfc_dev_stop,
1852         .dev_set_link_up                = sfc_dev_set_link_up,
1853         .dev_set_link_down              = sfc_dev_set_link_down,
1854         .dev_close                      = sfc_dev_close,
1855         .promiscuous_enable             = sfc_dev_promisc_enable,
1856         .promiscuous_disable            = sfc_dev_promisc_disable,
1857         .allmulticast_enable            = sfc_dev_allmulti_enable,
1858         .allmulticast_disable           = sfc_dev_allmulti_disable,
1859         .link_update                    = sfc_dev_link_update,
1860         .stats_get                      = sfc_stats_get,
1861         .stats_reset                    = sfc_stats_reset,
1862         .xstats_get                     = sfc_xstats_get,
1863         .xstats_reset                   = sfc_stats_reset,
1864         .xstats_get_names               = sfc_xstats_get_names,
1865         .dev_infos_get                  = sfc_dev_infos_get,
1866         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1867         .mtu_set                        = sfc_dev_set_mtu,
1868         .rx_queue_start                 = sfc_rx_queue_start,
1869         .rx_queue_stop                  = sfc_rx_queue_stop,
1870         .tx_queue_start                 = sfc_tx_queue_start,
1871         .tx_queue_stop                  = sfc_tx_queue_stop,
1872         .rx_queue_setup                 = sfc_rx_queue_setup,
1873         .rx_queue_release               = sfc_rx_queue_release,
1874         .rx_queue_intr_enable           = sfc_rx_queue_intr_enable,
1875         .rx_queue_intr_disable          = sfc_rx_queue_intr_disable,
1876         .tx_queue_setup                 = sfc_tx_queue_setup,
1877         .tx_queue_release               = sfc_tx_queue_release,
1878         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1879         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1880         .mac_addr_set                   = sfc_mac_addr_set,
1881         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1882         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1883         .reta_update                    = sfc_dev_rss_reta_update,
1884         .reta_query                     = sfc_dev_rss_reta_query,
1885         .rss_hash_update                = sfc_dev_rss_hash_update,
1886         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1887         .flow_ops_get                   = sfc_dev_flow_ops_get,
1888         .set_mc_addr_list               = sfc_set_mc_addr_list,
1889         .rxq_info_get                   = sfc_rx_queue_info_get,
1890         .txq_info_get                   = sfc_tx_queue_info_get,
1891         .fw_version_get                 = sfc_fw_version_get,
1892         .xstats_get_by_id               = sfc_xstats_get_by_id,
1893         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1894         .pool_ops_supported             = sfc_pool_ops_supported,
1895 };
1896
1897 /**
1898  * Duplicate a string in potentially shared memory required for
1899  * multi-process support.
1900  *
1901  * strdup() allocates from process-local heap/memory.
1902  */
1903 static char *
1904 sfc_strdup(const char *str)
1905 {
1906         size_t size;
1907         char *copy;
1908
1909         if (str == NULL)
1910                 return NULL;
1911
1912         size = strlen(str) + 1;
1913         copy = rte_malloc(__func__, size, 0);
1914         if (copy != NULL)
1915                 rte_memcpy(copy, str, size);
1916
1917         return copy;
1918 }
1919
1920 static int
1921 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1922 {
1923         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1924         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1925         const struct sfc_dp_rx *dp_rx;
1926         const struct sfc_dp_tx *dp_tx;
1927         const efx_nic_cfg_t *encp;
1928         unsigned int avail_caps = 0;
1929         const char *rx_name = NULL;
1930         const char *tx_name = NULL;
1931         int rc;
1932
1933         switch (sa->family) {
1934         case EFX_FAMILY_HUNTINGTON:
1935         case EFX_FAMILY_MEDFORD:
1936         case EFX_FAMILY_MEDFORD2:
1937                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1938                 avail_caps |= SFC_DP_HW_FW_CAP_RX_EFX;
1939                 avail_caps |= SFC_DP_HW_FW_CAP_TX_EFX;
1940                 break;
1941         case EFX_FAMILY_RIVERHEAD:
1942                 avail_caps |= SFC_DP_HW_FW_CAP_EF100;
1943                 break;
1944         default:
1945                 break;
1946         }
1947
1948         encp = efx_nic_cfg_get(sa->nic);
1949         if (encp->enc_rx_es_super_buffer_supported)
1950                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1951
1952         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1953                                 sfc_kvarg_string_handler, &rx_name);
1954         if (rc != 0)
1955                 goto fail_kvarg_rx_datapath;
1956
1957         if (rx_name != NULL) {
1958                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1959                 if (dp_rx == NULL) {
1960                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1961                         rc = ENOENT;
1962                         goto fail_dp_rx;
1963                 }
1964                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
1965                         sfc_err(sa,
1966                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1967                                 rx_name);
1968                         rc = EINVAL;
1969                         goto fail_dp_rx_caps;
1970                 }
1971         } else {
1972                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1973                 if (dp_rx == NULL) {
1974                         sfc_err(sa, "Rx datapath by caps %#x not found",
1975                                 avail_caps);
1976                         rc = ENOENT;
1977                         goto fail_dp_rx;
1978                 }
1979         }
1980
1981         sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
1982         if (sas->dp_rx_name == NULL) {
1983                 rc = ENOMEM;
1984                 goto fail_dp_rx_name;
1985         }
1986
1987         sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
1988
1989         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1990                                 sfc_kvarg_string_handler, &tx_name);
1991         if (rc != 0)
1992                 goto fail_kvarg_tx_datapath;
1993
1994         if (tx_name != NULL) {
1995                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1996                 if (dp_tx == NULL) {
1997                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1998                         rc = ENOENT;
1999                         goto fail_dp_tx;
2000                 }
2001                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
2002                         sfc_err(sa,
2003                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
2004                                 tx_name);
2005                         rc = EINVAL;
2006                         goto fail_dp_tx_caps;
2007                 }
2008         } else {
2009                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
2010                 if (dp_tx == NULL) {
2011                         sfc_err(sa, "Tx datapath by caps %#x not found",
2012                                 avail_caps);
2013                         rc = ENOENT;
2014                         goto fail_dp_tx;
2015                 }
2016         }
2017
2018         sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
2019         if (sas->dp_tx_name == NULL) {
2020                 rc = ENOMEM;
2021                 goto fail_dp_tx_name;
2022         }
2023
2024         sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
2025
2026         sa->priv.dp_rx = dp_rx;
2027         sa->priv.dp_tx = dp_tx;
2028
2029         dev->rx_pkt_burst = dp_rx->pkt_burst;
2030         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2031         dev->tx_pkt_burst = dp_tx->pkt_burst;
2032
2033         dev->rx_queue_count = sfc_rx_queue_count;
2034         dev->rx_descriptor_status = sfc_rx_descriptor_status;
2035         dev->tx_descriptor_status = sfc_tx_descriptor_status;
2036         dev->dev_ops = &sfc_eth_dev_ops;
2037
2038         return 0;
2039
2040 fail_dp_tx_name:
2041 fail_dp_tx_caps:
2042 fail_dp_tx:
2043 fail_kvarg_tx_datapath:
2044         rte_free(sas->dp_rx_name);
2045         sas->dp_rx_name = NULL;
2046
2047 fail_dp_rx_name:
2048 fail_dp_rx_caps:
2049 fail_dp_rx:
2050 fail_kvarg_rx_datapath:
2051         return rc;
2052 }
2053
2054 static void
2055 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
2056 {
2057         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
2058         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2059
2060         dev->dev_ops = NULL;
2061         dev->tx_pkt_prepare = NULL;
2062         dev->rx_pkt_burst = NULL;
2063         dev->tx_pkt_burst = NULL;
2064
2065         rte_free(sas->dp_tx_name);
2066         sas->dp_tx_name = NULL;
2067         sa->priv.dp_tx = NULL;
2068
2069         rte_free(sas->dp_rx_name);
2070         sas->dp_rx_name = NULL;
2071         sa->priv.dp_rx = NULL;
2072 }
2073
2074 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
2075         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
2076         .reta_query                     = sfc_dev_rss_reta_query,
2077         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
2078         .rxq_info_get                   = sfc_rx_queue_info_get,
2079         .txq_info_get                   = sfc_tx_queue_info_get,
2080 };
2081
2082 static int
2083 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
2084 {
2085         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2086         struct sfc_adapter_priv *sap;
2087         const struct sfc_dp_rx *dp_rx;
2088         const struct sfc_dp_tx *dp_tx;
2089         int rc;
2090
2091         /*
2092          * Allocate process private data from heap, since it should not
2093          * be located in shared memory allocated using rte_malloc() API.
2094          */
2095         sap = calloc(1, sizeof(*sap));
2096         if (sap == NULL) {
2097                 rc = ENOMEM;
2098                 goto fail_alloc_priv;
2099         }
2100
2101         sap->logtype_main = logtype_main;
2102
2103         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
2104         if (dp_rx == NULL) {
2105                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2106                         "cannot find %s Rx datapath", sas->dp_rx_name);
2107                 rc = ENOENT;
2108                 goto fail_dp_rx;
2109         }
2110         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
2111                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2112                         "%s Rx datapath does not support multi-process",
2113                         sas->dp_rx_name);
2114                 rc = EINVAL;
2115                 goto fail_dp_rx_multi_process;
2116         }
2117
2118         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
2119         if (dp_tx == NULL) {
2120                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2121                         "cannot find %s Tx datapath", sas->dp_tx_name);
2122                 rc = ENOENT;
2123                 goto fail_dp_tx;
2124         }
2125         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
2126                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2127                         "%s Tx datapath does not support multi-process",
2128                         sas->dp_tx_name);
2129                 rc = EINVAL;
2130                 goto fail_dp_tx_multi_process;
2131         }
2132
2133         sap->dp_rx = dp_rx;
2134         sap->dp_tx = dp_tx;
2135
2136         dev->process_private = sap;
2137         dev->rx_pkt_burst = dp_rx->pkt_burst;
2138         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2139         dev->tx_pkt_burst = dp_tx->pkt_burst;
2140         dev->rx_queue_count = sfc_rx_queue_count;
2141         dev->rx_descriptor_status = sfc_rx_descriptor_status;
2142         dev->tx_descriptor_status = sfc_tx_descriptor_status;
2143         dev->dev_ops = &sfc_eth_dev_secondary_ops;
2144
2145         return 0;
2146
2147 fail_dp_tx_multi_process:
2148 fail_dp_tx:
2149 fail_dp_rx_multi_process:
2150 fail_dp_rx:
2151         free(sap);
2152
2153 fail_alloc_priv:
2154         return rc;
2155 }
2156
2157 static void
2158 sfc_register_dp(void)
2159 {
2160         /* Register once */
2161         if (TAILQ_EMPTY(&sfc_dp_head)) {
2162                 /* Prefer EF10 datapath */
2163                 sfc_dp_register(&sfc_dp_head, &sfc_ef100_rx.dp);
2164                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2165                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2166                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2167
2168                 sfc_dp_register(&sfc_dp_head, &sfc_ef100_tx.dp);
2169                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2170                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2171                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2172         }
2173 }
2174
2175 static int
2176 sfc_eth_dev_init(struct rte_eth_dev *dev)
2177 {
2178         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2179         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2180         uint32_t logtype_main;
2181         struct sfc_adapter *sa;
2182         int rc;
2183         const efx_nic_cfg_t *encp;
2184         const struct rte_ether_addr *from;
2185         int ret;
2186
2187         if (sfc_efx_dev_class_get(pci_dev->device.devargs) !=
2188                         SFC_EFX_DEV_CLASS_NET) {
2189                 SFC_GENERIC_LOG(DEBUG,
2190                         "Incompatible device class: skip probing, should be probed by other sfc driver.");
2191                 return 1;
2192         }
2193
2194         sfc_register_dp();
2195
2196         logtype_main = sfc_register_logtype(&pci_dev->addr,
2197                                             SFC_LOGTYPE_MAIN_STR,
2198                                             RTE_LOG_NOTICE);
2199
2200         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2201                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2202
2203         /* Required for logging */
2204         ret = snprintf(sas->log_prefix, sizeof(sas->log_prefix),
2205                         "PMD: sfc_efx " PCI_PRI_FMT " #%" PRIu16 ": ",
2206                         pci_dev->addr.domain, pci_dev->addr.bus,
2207                         pci_dev->addr.devid, pci_dev->addr.function,
2208                         dev->data->port_id);
2209         if (ret < 0 || ret >= (int)sizeof(sas->log_prefix)) {
2210                 SFC_GENERIC_LOG(ERR,
2211                         "reserved log prefix is too short for " PCI_PRI_FMT,
2212                         pci_dev->addr.domain, pci_dev->addr.bus,
2213                         pci_dev->addr.devid, pci_dev->addr.function);
2214                 return -EINVAL;
2215         }
2216         sas->pci_addr = pci_dev->addr;
2217         sas->port_id = dev->data->port_id;
2218
2219         /*
2220          * Allocate process private data from heap, since it should not
2221          * be located in shared memory allocated using rte_malloc() API.
2222          */
2223         sa = calloc(1, sizeof(*sa));
2224         if (sa == NULL) {
2225                 rc = ENOMEM;
2226                 goto fail_alloc_sa;
2227         }
2228
2229         dev->process_private = sa;
2230
2231         /* Required for logging */
2232         sa->priv.shared = sas;
2233         sa->priv.logtype_main = logtype_main;
2234
2235         sa->eth_dev = dev;
2236
2237         /* Copy PCI device info to the dev->data */
2238         rte_eth_copy_pci_info(dev, pci_dev);
2239         dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
2240         dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
2241
2242         rc = sfc_kvargs_parse(sa);
2243         if (rc != 0)
2244                 goto fail_kvargs_parse;
2245
2246         sfc_log_init(sa, "entry");
2247
2248         dev->data->mac_addrs = rte_zmalloc("sfc", RTE_ETHER_ADDR_LEN, 0);
2249         if (dev->data->mac_addrs == NULL) {
2250                 rc = ENOMEM;
2251                 goto fail_mac_addrs;
2252         }
2253
2254         sfc_adapter_lock_init(sa);
2255         sfc_adapter_lock(sa);
2256
2257         sfc_log_init(sa, "probing");
2258         rc = sfc_probe(sa);
2259         if (rc != 0)
2260                 goto fail_probe;
2261
2262         sfc_log_init(sa, "set device ops");
2263         rc = sfc_eth_dev_set_ops(dev);
2264         if (rc != 0)
2265                 goto fail_set_ops;
2266
2267         sfc_log_init(sa, "attaching");
2268         rc = sfc_attach(sa);
2269         if (rc != 0)
2270                 goto fail_attach;
2271
2272         encp = efx_nic_cfg_get(sa->nic);
2273
2274         /*
2275          * The arguments are really reverse order in comparison to
2276          * Linux kernel. Copy from NIC config to Ethernet device data.
2277          */
2278         from = (const struct rte_ether_addr *)(encp->enc_mac_addr);
2279         rte_ether_addr_copy(from, &dev->data->mac_addrs[0]);
2280
2281         sfc_adapter_unlock(sa);
2282
2283         sfc_log_init(sa, "done");
2284         return 0;
2285
2286 fail_attach:
2287         sfc_eth_dev_clear_ops(dev);
2288
2289 fail_set_ops:
2290         sfc_unprobe(sa);
2291
2292 fail_probe:
2293         sfc_adapter_unlock(sa);
2294         sfc_adapter_lock_fini(sa);
2295         rte_free(dev->data->mac_addrs);
2296         dev->data->mac_addrs = NULL;
2297
2298 fail_mac_addrs:
2299         sfc_kvargs_cleanup(sa);
2300
2301 fail_kvargs_parse:
2302         sfc_log_init(sa, "failed %d", rc);
2303         dev->process_private = NULL;
2304         free(sa);
2305
2306 fail_alloc_sa:
2307         SFC_ASSERT(rc > 0);
2308         return -rc;
2309 }
2310
2311 static int
2312 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2313 {
2314         sfc_dev_close(dev);
2315
2316         return 0;
2317 }
2318
2319 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2320         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2321         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2322         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2323         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2324         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2325         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2326         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2327         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2328         { RTE_PCI_DEVICE(EFX_PCI_VENID_XILINX, EFX_PCI_DEVID_RIVERHEAD) },
2329         { .vendor_id = 0 /* sentinel */ }
2330 };
2331
2332 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2333         struct rte_pci_device *pci_dev)
2334 {
2335         return rte_eth_dev_pci_generic_probe(pci_dev,
2336                 sizeof(struct sfc_adapter_shared), sfc_eth_dev_init);
2337 }
2338
2339 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2340 {
2341         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2342 }
2343
2344 static struct rte_pci_driver sfc_efx_pmd = {
2345         .id_table = pci_id_sfc_efx_map,
2346         .drv_flags =
2347                 RTE_PCI_DRV_INTR_LSC |
2348                 RTE_PCI_DRV_NEED_MAPPING,
2349         .probe = sfc_eth_dev_pci_probe,
2350         .remove = sfc_eth_dev_pci_remove,
2351 };
2352
2353 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2354 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2355 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2356 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2357         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2358         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2359         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2360         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2361         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2362         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2363
2364 RTE_INIT(sfc_driver_register_logtype)
2365 {
2366         int ret;
2367
2368         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2369                                                    RTE_LOG_NOTICE);
2370         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2371 }