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_flow_tunnel.h"
  30 #include "sfc_dp.h"
  31 #include "sfc_dp_rx.h"
  32 #include "sfc_repr.h"
  33 #include "sfc_sw_stats.h"
  34 #include "sfc_switch.h"
  35
  36 #define SFC_XSTAT_ID_INVALID_VAL  UINT64_MAX
  37 #define SFC_XSTAT_ID_INVALID_NAME '\0'
  38
  39 uint32_t sfc_logtype_driver;
  40
  41 static struct sfc_dp_list sfc_dp_head =
  42         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  43
  44
  45 static void sfc_eth_dev_clear_ops(struct rte_eth_dev *dev);
  46
  47
  48 static int
  49 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  50 {
  51         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
  52         efx_nic_fw_info_t enfi;
  53         int ret;
  54         int rc;
  55
  56         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  57         if (rc != 0)
  58                 return -rc;
  59
  60         ret = snprintf(fw_version, fw_size,
  61                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  62                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  63                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  64         if (ret < 0)
  65                 return ret;
  66
  67         if (enfi.enfi_dpcpu_fw_ids_valid) {
  68                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  69                 int ret_extra;
  70
  71                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  72                                      fw_size - dpcpu_fw_ids_offset,
  73                                      " rx%" PRIx16 " tx%" PRIx16,
  74                                      enfi.enfi_rx_dpcpu_fw_id,
  75                                      enfi.enfi_tx_dpcpu_fw_id);
  76                 if (ret_extra < 0)
  77                         return ret_extra;
  78
  79                 ret += ret_extra;
  80         }
  81
  82         if (fw_size < (size_t)(++ret))
  83                 return ret;
  84         else
  85                 return 0;
  86 }
  87
  88 static int
  89 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  90 {
  91         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
  92         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
  93         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
  94         struct sfc_rss *rss = &sas->rss;
  95         struct sfc_mae *mae = &sa->mae;
  96         uint64_t txq_offloads_def = 0;
  97
  98         sfc_log_init(sa, "entry");
  99
 100         dev_info->min_mtu = RTE_ETHER_MIN_MTU;
 101         dev_info->max_mtu = EFX_MAC_SDU_MAX;
 102
 103         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 104
 105         dev_info->max_vfs = sa->sriov.num_vfs;
 106
 107         /* Autonegotiation may be disabled */
 108         dev_info->speed_capa = RTE_ETH_LINK_SPEED_FIXED;
 109         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_1000FDX))
 110                 dev_info->speed_capa |= RTE_ETH_LINK_SPEED_1G;
 111         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_10000FDX))
 112                 dev_info->speed_capa |= RTE_ETH_LINK_SPEED_10G;
 113         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_25000FDX))
 114                 dev_info->speed_capa |= RTE_ETH_LINK_SPEED_25G;
 115         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_40000FDX))
 116                 dev_info->speed_capa |= RTE_ETH_LINK_SPEED_40G;
 117         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_50000FDX))
 118                 dev_info->speed_capa |= RTE_ETH_LINK_SPEED_50G;
 119         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_100000FDX))
 120                 dev_info->speed_capa |= RTE_ETH_LINK_SPEED_100G;
 121
 122         dev_info->max_rx_queues = sa->rxq_max;
 123         dev_info->max_tx_queues = sa->txq_max;
 124
 125         /* By default packets are dropped if no descriptors are available */
 126         dev_info->default_rxconf.rx_drop_en = 1;
 127
 128         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 129
 130         /*
 131          * rx_offload_capa includes both device and queue offloads since
 132          * the latter may be requested on a per device basis which makes
 133          * sense when some offloads are needed to be set on all queues.
 134          */
 135         dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 136                                     dev_info->rx_queue_offload_capa;
 137
 138         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 139
 140         /*
 141          * tx_offload_capa includes both device and queue offloads since
 142          * the latter may be requested on a per device basis which makes
 143          * sense when some offloads are needed to be set on all queues.
 144          */
 145         dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 146                                     dev_info->tx_queue_offload_capa;
 147
 148         if (dev_info->tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
 149                 txq_offloads_def |= RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
 150
 151         dev_info->default_txconf.offloads |= txq_offloads_def;
 152
 153         if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
 154                 uint64_t rte_hf = 0;
 155                 unsigned int i;
 156
 157                 for (i = 0; i < rss->hf_map_nb_entries; ++i)
 158                         rte_hf |= rss->hf_map[i].rte;
 159
 160                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 161                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 162                 dev_info->flow_type_rss_offloads = rte_hf;
 163         }
 164
 165         /* Initialize to hardware limits */
 166         dev_info->rx_desc_lim.nb_max = sa->rxq_max_entries;
 167         dev_info->rx_desc_lim.nb_min = sa->rxq_min_entries;
 168         /* The RXQ hardware requires that the descriptor count is a power
 169          * of 2, but rx_desc_lim cannot properly describe that constraint.
 170          */
 171         dev_info->rx_desc_lim.nb_align = sa->rxq_min_entries;
 172
 173         /* Initialize to hardware limits */
 174         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 175         dev_info->tx_desc_lim.nb_min = sa->txq_min_entries;
 176         /*
 177          * The TXQ hardware requires that the descriptor count is a power
 178          * of 2, but tx_desc_lim cannot properly describe that constraint
 179          */
 180         dev_info->tx_desc_lim.nb_align = sa->txq_min_entries;
 181
 182         if (sap->dp_rx->get_dev_info != NULL)
 183                 sap->dp_rx->get_dev_info(dev_info);
 184         if (sap->dp_tx->get_dev_info != NULL)
 185                 sap->dp_tx->get_dev_info(dev_info);
 186
 187         dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
 188                              RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 189         dev_info->dev_capa &= ~RTE_ETH_DEV_CAPA_FLOW_RULE_KEEP;
 190
 191         if (mae->status == SFC_MAE_STATUS_SUPPORTED ||
 192             mae->status == SFC_MAE_STATUS_ADMIN) {
 193                 dev_info->switch_info.name = dev->device->driver->name;
 194                 dev_info->switch_info.domain_id = mae->switch_domain_id;
 195                 dev_info->switch_info.port_id = mae->switch_port_id;
 196         }
 197
 198         return 0;
 199 }
 200
 201 static const uint32_t *
 202 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 203 {
 204         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
 205
 206         return sap->dp_rx->supported_ptypes_get(sap->shared->tunnel_encaps);
 207 }
 208
 209 static int
 210 sfc_dev_configure(struct rte_eth_dev *dev)
 211 {
 212         struct rte_eth_dev_data *dev_data = dev->data;
 213         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 214         int rc;
 215
 216         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 217                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 218
 219         sfc_adapter_lock(sa);
 220         switch (sa->state) {
 221         case SFC_ETHDEV_CONFIGURED:
 222                 /* FALLTHROUGH */
 223         case SFC_ETHDEV_INITIALIZED:
 224                 rc = sfc_configure(sa);
 225                 break;
 226         default:
 227                 sfc_err(sa, "unexpected adapter state %u to configure",
 228                         sa->state);
 229                 rc = EINVAL;
 230                 break;
 231         }
 232         sfc_adapter_unlock(sa);
 233
 234         sfc_log_init(sa, "done %d", rc);
 235         SFC_ASSERT(rc >= 0);
 236         return -rc;
 237 }
 238
 239 static int
 240 sfc_dev_start(struct rte_eth_dev *dev)
 241 {
 242         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 243         int rc;
 244
 245         sfc_log_init(sa, "entry");
 246
 247         sfc_adapter_lock(sa);
 248         rc = sfc_start(sa);
 249         sfc_adapter_unlock(sa);
 250
 251         sfc_log_init(sa, "done %d", rc);
 252         SFC_ASSERT(rc >= 0);
 253         return -rc;
 254 }
 255
 256 static int
 257 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 258 {
 259         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 260         struct rte_eth_link current_link;
 261         int ret;
 262
 263         sfc_log_init(sa, "entry");
 264
 265         if (sa->state != SFC_ETHDEV_STARTED) {
 266                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 267         } else if (wait_to_complete) {
 268                 efx_link_mode_t link_mode;
 269
 270                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 271                         link_mode = EFX_LINK_UNKNOWN;
 272                 sfc_port_link_mode_to_info(link_mode, &current_link);
 273
 274         } else {
 275                 sfc_ev_mgmt_qpoll(sa);
 276                 rte_eth_linkstatus_get(dev, &current_link);
 277         }
 278
 279         ret = rte_eth_linkstatus_set(dev, &current_link);
 280         if (ret == 0)
 281                 sfc_notice(sa, "Link status is %s",
 282                            current_link.link_status ? "UP" : "DOWN");
 283
 284         return ret;
 285 }
 286
 287 static int
 288 sfc_dev_stop(struct rte_eth_dev *dev)
 289 {
 290         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 291
 292         sfc_log_init(sa, "entry");
 293
 294         sfc_adapter_lock(sa);
 295         sfc_stop(sa);
 296         sfc_adapter_unlock(sa);
 297
 298         sfc_log_init(sa, "done");
 299
 300         return 0;
 301 }
 302
 303 static int
 304 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 305 {
 306         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 307         int rc;
 308
 309         sfc_log_init(sa, "entry");
 310
 311         sfc_adapter_lock(sa);
 312         rc = sfc_start(sa);
 313         sfc_adapter_unlock(sa);
 314
 315         SFC_ASSERT(rc >= 0);
 316         return -rc;
 317 }
 318
 319 static int
 320 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 321 {
 322         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 323
 324         sfc_log_init(sa, "entry");
 325
 326         sfc_adapter_lock(sa);
 327         sfc_stop(sa);
 328         sfc_adapter_unlock(sa);
 329
 330         return 0;
 331 }
 332
 333 static void
 334 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
 335 {
 336         free(dev->process_private);
 337         rte_eth_dev_release_port(dev);
 338 }
 339
 340 static int
 341 sfc_dev_close(struct rte_eth_dev *dev)
 342 {
 343         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 344
 345         sfc_log_init(sa, "entry");
 346
 347         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 348                 sfc_eth_dev_secondary_clear_ops(dev);
 349                 return 0;
 350         }
 351
 352         sfc_pre_detach(sa);
 353
 354         sfc_adapter_lock(sa);
 355         switch (sa->state) {
 356         case SFC_ETHDEV_STARTED:
 357                 sfc_stop(sa);
 358                 SFC_ASSERT(sa->state == SFC_ETHDEV_CONFIGURED);
 359                 /* FALLTHROUGH */
 360         case SFC_ETHDEV_CONFIGURED:
 361                 sfc_close(sa);
 362                 SFC_ASSERT(sa->state == SFC_ETHDEV_INITIALIZED);
 363                 /* FALLTHROUGH */
 364         case SFC_ETHDEV_INITIALIZED:
 365                 break;
 366         default:
 367                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 368                 break;
 369         }
 370
 371         /*
 372          * Cleanup all resources.
 373          * Rollback primary process sfc_eth_dev_init() below.
 374          */
 375
 376         sfc_eth_dev_clear_ops(dev);
 377
 378         sfc_detach(sa);
 379         sfc_unprobe(sa);
 380
 381         sfc_kvargs_cleanup(sa);
 382
 383         sfc_adapter_unlock(sa);
 384         sfc_adapter_lock_fini(sa);
 385
 386         sfc_log_init(sa, "done");
 387
 388         /* Required for logging, so cleanup last */
 389         sa->eth_dev = NULL;
 390
 391         free(sa);
 392
 393         return 0;
 394 }
 395
 396 static int
 397 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 398                    boolean_t enabled)
 399 {
 400         struct sfc_port *port;
 401         boolean_t *toggle;
 402         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 403         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 404         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 405         int rc = 0;
 406
 407         sfc_adapter_lock(sa);
 408
 409         port = &sa->port;
 410         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 411
 412         if (*toggle != enabled) {
 413                 *toggle = enabled;
 414
 415                 if (sfc_sa2shared(sa)->isolated) {
 416                         sfc_warn(sa, "isolated mode is active on the port");
 417                         sfc_warn(sa, "the change is to be applied on the next "
 418                                      "start provided that isolated mode is "
 419                                      "disabled prior the next start");
 420                 } else if ((sa->state == SFC_ETHDEV_STARTED) &&
 421                            ((rc = sfc_set_rx_mode(sa)) != 0)) {
 422                         *toggle = !(enabled);
 423                         sfc_warn(sa, "Failed to %s %s mode, rc = %d",
 424                                  ((enabled) ? "enable" : "disable"), desc, rc);
 425
 426                         /*
 427                          * For promiscuous and all-multicast filters a
 428                          * permission failure should be reported as an
 429                          * unsupported filter.
 430                          */
 431                         if (rc == EPERM)
 432                                 rc = ENOTSUP;
 433                 }
 434         }
 435
 436         sfc_adapter_unlock(sa);
 437         return rc;
 438 }
 439
 440 static int
 441 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 442 {
 443         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 444
 445         SFC_ASSERT(rc >= 0);
 446         return -rc;
 447 }
 448
 449 static int
 450 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 451 {
 452         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 453
 454         SFC_ASSERT(rc >= 0);
 455         return -rc;
 456 }
 457
 458 static int
 459 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 460 {
 461         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 462
 463         SFC_ASSERT(rc >= 0);
 464         return -rc;
 465 }
 466
 467 static int
 468 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 469 {
 470         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 471
 472         SFC_ASSERT(rc >= 0);
 473         return -rc;
 474 }
 475
 476 static int
 477 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t ethdev_qid,
 478                    uint16_t nb_rx_desc, unsigned int socket_id,
 479                    const struct rte_eth_rxconf *rx_conf,
 480                    struct rte_mempool *mb_pool)
 481 {
 482         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 483         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 484         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
 485         struct sfc_rxq_info *rxq_info;
 486         sfc_sw_index_t sw_index;
 487         int rc;
 488
 489         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 490                      ethdev_qid, nb_rx_desc, socket_id);
 491
 492         sfc_adapter_lock(sa);
 493
 494         sw_index = sfc_rxq_sw_index_by_ethdev_rx_qid(sas, sfc_ethdev_qid);
 495         rc = sfc_rx_qinit(sa, sw_index, nb_rx_desc, socket_id,
 496                           rx_conf, mb_pool);
 497         if (rc != 0)
 498                 goto fail_rx_qinit;
 499
 500         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
 501         dev->data->rx_queues[ethdev_qid] = rxq_info->dp;
 502
 503         sfc_adapter_unlock(sa);
 504
 505         return 0;
 506
 507 fail_rx_qinit:
 508         sfc_adapter_unlock(sa);
 509         SFC_ASSERT(rc > 0);
 510         return -rc;
 511 }
 512
 513 static void
 514 sfc_rx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
 515 {
 516         struct sfc_dp_rxq *dp_rxq = dev->data->rx_queues[qid];
 517         struct sfc_rxq *rxq;
 518         struct sfc_adapter *sa;
 519         sfc_sw_index_t sw_index;
 520
 521         if (dp_rxq == NULL)
 522                 return;
 523
 524         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 525         sa = rxq->evq->sa;
 526         sfc_adapter_lock(sa);
 527
 528         sw_index = dp_rxq->dpq.queue_id;
 529
 530         sfc_log_init(sa, "RxQ=%u", sw_index);
 531
 532         sfc_rx_qfini(sa, sw_index);
 533
 534         sfc_adapter_unlock(sa);
 535 }
 536
 537 static int
 538 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t ethdev_qid,
 539                    uint16_t nb_tx_desc, unsigned int socket_id,
 540                    const struct rte_eth_txconf *tx_conf)
 541 {
 542         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 543         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 544         struct sfc_txq_info *txq_info;
 545         sfc_sw_index_t sw_index;
 546         int rc;
 547
 548         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 549                      ethdev_qid, nb_tx_desc, socket_id);
 550
 551         sfc_adapter_lock(sa);
 552
 553         sw_index = sfc_txq_sw_index_by_ethdev_tx_qid(sas, ethdev_qid);
 554         rc = sfc_tx_qinit(sa, sw_index, nb_tx_desc, socket_id, tx_conf);
 555         if (rc != 0)
 556                 goto fail_tx_qinit;
 557
 558         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
 559         dev->data->tx_queues[ethdev_qid] = txq_info->dp;
 560
 561         sfc_adapter_unlock(sa);
 562         return 0;
 563
 564 fail_tx_qinit:
 565         sfc_adapter_unlock(sa);
 566         SFC_ASSERT(rc > 0);
 567         return -rc;
 568 }
 569
 570 static void
 571 sfc_tx_queue_release(struct rte_eth_dev *dev, uint16_t qid)
 572 {
 573         struct sfc_dp_txq *dp_txq = dev->data->tx_queues[qid];
 574         struct sfc_txq *txq;
 575         sfc_sw_index_t sw_index;
 576         struct sfc_adapter *sa;
 577
 578         if (dp_txq == NULL)
 579                 return;
 580
 581         txq = sfc_txq_by_dp_txq(dp_txq);
 582         sw_index = dp_txq->dpq.queue_id;
 583
 584         SFC_ASSERT(txq->evq != NULL);
 585         sa = txq->evq->sa;
 586
 587         sfc_log_init(sa, "TxQ = %u", sw_index);
 588
 589         sfc_adapter_lock(sa);
 590
 591         sfc_tx_qfini(sa, sw_index);
 592
 593         sfc_adapter_unlock(sa);
 594 }
 595
 596 static void
 597 sfc_stats_get_dp_rx(struct sfc_adapter *sa, uint64_t *pkts, uint64_t *bytes)
 598 {
 599         struct sfc_adapter_shared *sas = sfc_sa2shared(sa);
 600         uint64_t pkts_sum = 0;
 601         uint64_t bytes_sum = 0;
 602         unsigned int i;
 603
 604         for (i = 0; i < sas->ethdev_rxq_count; ++i) {
 605                 struct sfc_rxq_info *rxq_info;
 606
 607                 rxq_info = sfc_rxq_info_by_ethdev_qid(sas, i);
 608                 if (rxq_info->state & SFC_RXQ_INITIALIZED) {
 609                         union sfc_pkts_bytes qstats;
 610
 611                         sfc_pkts_bytes_get(&rxq_info->dp->dpq.stats, &qstats);
 612                         pkts_sum += qstats.pkts -
 613                                         sa->sw_stats.reset_rx_pkts[i];
 614                         bytes_sum += qstats.bytes -
 615                                         sa->sw_stats.reset_rx_bytes[i];
 616                 }
 617         }
 618
 619         *pkts = pkts_sum;
 620         *bytes = bytes_sum;
 621 }
 622
 623 static void
 624 sfc_stats_get_dp_tx(struct sfc_adapter *sa, uint64_t *pkts, uint64_t *bytes)
 625 {
 626         struct sfc_adapter_shared *sas = sfc_sa2shared(sa);
 627         uint64_t pkts_sum = 0;
 628         uint64_t bytes_sum = 0;
 629         unsigned int i;
 630
 631         for (i = 0; i < sas->ethdev_txq_count; ++i) {
 632                 struct sfc_txq_info *txq_info;
 633
 634                 txq_info = sfc_txq_info_by_ethdev_qid(sas, i);
 635                 if (txq_info->state & SFC_TXQ_INITIALIZED) {
 636                         union sfc_pkts_bytes qstats;
 637
 638                         sfc_pkts_bytes_get(&txq_info->dp->dpq.stats, &qstats);
 639                         pkts_sum += qstats.pkts -
 640                                         sa->sw_stats.reset_tx_pkts[i];
 641                         bytes_sum += qstats.bytes -
 642                                         sa->sw_stats.reset_tx_bytes[i];
 643                 }
 644         }
 645
 646         *pkts = pkts_sum;
 647         *bytes = bytes_sum;
 648 }
 649
 650 /*
 651  * Some statistics are computed as A - B where A and B each increase
 652  * monotonically with some hardware counter(s) and the counters are read
 653  * asynchronously.
 654  *
 655  * If packet X is counted in A, but not counted in B yet, computed value is
 656  * greater than real.
 657  *
 658  * If packet X is not counted in A at the moment of reading the counter,
 659  * but counted in B at the moment of reading the counter, computed value
 660  * is less than real.
 661  *
 662  * However, counter which grows backward is worse evil than slightly wrong
 663  * value. So, let's try to guarantee that it never happens except may be
 664  * the case when the MAC stats are zeroed as a result of a NIC reset.
 665  */
 666 static void
 667 sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
 668 {
 669         if ((int64_t)(newval - *stat) > 0 || newval == 0)
 670                 *stat = newval;
 671 }
 672
 673 static int
 674 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 675 {
 676         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
 677         bool have_dp_rx_stats = sap->dp_rx->features & SFC_DP_RX_FEAT_STATS;
 678         bool have_dp_tx_stats = sap->dp_tx->features & SFC_DP_TX_FEAT_STATS;
 679         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 680         struct sfc_port *port = &sa->port;
 681         uint64_t *mac_stats;
 682         int ret;
 683
 684         sfc_adapter_lock(sa);
 685
 686         if (have_dp_rx_stats)
 687                 sfc_stats_get_dp_rx(sa, &stats->ipackets, &stats->ibytes);
 688         if (have_dp_tx_stats)
 689                 sfc_stats_get_dp_tx(sa, &stats->opackets, &stats->obytes);
 690
 691         ret = sfc_port_update_mac_stats(sa, B_FALSE);
 692         if (ret != 0)
 693                 goto unlock;
 694
 695         mac_stats = port->mac_stats_buf;
 696
 697         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 698                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 699                 if (!have_dp_rx_stats) {
 700                         stats->ipackets =
 701                                 mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 702                                 mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 703                                 mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 704                         stats->ibytes =
 705                                 mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 706                                 mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 707                                 mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 708
 709                         /* CRC is included in these stats, but shouldn't be */
 710                         stats->ibytes -= stats->ipackets * RTE_ETHER_CRC_LEN;
 711                 }
 712                 if (!have_dp_tx_stats) {
 713                         stats->opackets =
 714                                 mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 715                                 mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 716                                 mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 717                         stats->obytes =
 718                                 mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 719                                 mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 720                                 mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 721
 722                         /* CRC is included in these stats, but shouldn't be */
 723                         stats->obytes -= stats->opackets * RTE_ETHER_CRC_LEN;
 724                 }
 725                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 726                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 727         } else {
 728                 if (!have_dp_tx_stats) {
 729                         stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 730                         stats->obytes = mac_stats[EFX_MAC_TX_OCTETS] -
 731                                 mac_stats[EFX_MAC_TX_PKTS] * RTE_ETHER_CRC_LEN;
 732                 }
 733
 734                 /*
 735                  * Take into account stats which are whenever supported
 736                  * on EF10. If some stat is not supported by current
 737                  * firmware variant or HW revision, it is guaranteed
 738                  * to be zero in mac_stats.
 739                  */
 740                 stats->imissed =
 741                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 742                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 743                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 744                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 745                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 746                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 747                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 748                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 749                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 750                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 751                 stats->ierrors =
 752                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 753                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 754                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 755                 /* no oerrors counters supported on EF10 */
 756
 757                 if (!have_dp_rx_stats) {
 758                         /* Exclude missed, errors and pauses from Rx packets */
 759                         sfc_update_diff_stat(&port->ipackets,
 760                                 mac_stats[EFX_MAC_RX_PKTS] -
 761                                 mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
 762                                 stats->imissed - stats->ierrors);
 763                         stats->ipackets = port->ipackets;
 764                         stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS] -
 765                                 mac_stats[EFX_MAC_RX_PKTS] * RTE_ETHER_CRC_LEN;
 766                 }
 767         }
 768
 769 unlock:
 770         sfc_adapter_unlock(sa);
 771         SFC_ASSERT(ret >= 0);
 772         return -ret;
 773 }
 774
 775 static int
 776 sfc_stats_reset(struct rte_eth_dev *dev)
 777 {
 778         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 779         struct sfc_port *port = &sa->port;
 780         int rc;
 781
 782         sfc_adapter_lock(sa);
 783
 784         if (sa->state != SFC_ETHDEV_STARTED) {
 785                 /*
 786                  * The operation cannot be done if port is not started; it
 787                  * will be scheduled to be done during the next port start
 788                  */
 789                 port->mac_stats_reset_pending = B_TRUE;
 790                 sfc_adapter_unlock(sa);
 791                 return 0;
 792         }
 793
 794         rc = sfc_port_reset_mac_stats(sa);
 795         if (rc != 0)
 796                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 797
 798         sfc_sw_xstats_reset(sa);
 799
 800         sfc_adapter_unlock(sa);
 801
 802         SFC_ASSERT(rc >= 0);
 803         return -rc;
 804 }
 805
 806 static unsigned int
 807 sfc_xstats_get_nb_supported(struct sfc_adapter *sa)
 808 {
 809         struct sfc_port *port = &sa->port;
 810         unsigned int nb_supported;
 811
 812         sfc_adapter_lock(sa);
 813         nb_supported = port->mac_stats_nb_supported +
 814                        sfc_sw_xstats_get_nb_supported(sa);
 815         sfc_adapter_unlock(sa);
 816
 817         return nb_supported;
 818 }
 819
 820 static int
 821 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 822                unsigned int xstats_count)
 823 {
 824         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 825         unsigned int nb_written = 0;
 826         unsigned int nb_supported = 0;
 827         int rc;
 828
 829         if (unlikely(xstats == NULL))
 830                 return sfc_xstats_get_nb_supported(sa);
 831
 832         rc = sfc_port_get_mac_stats(sa, xstats, xstats_count, &nb_written);
 833         if (rc < 0)
 834                 return rc;
 835
 836         nb_supported = rc;
 837         sfc_sw_xstats_get_vals(sa, xstats, xstats_count, &nb_written,
 838                                &nb_supported);
 839
 840         return nb_supported;
 841 }
 842
 843 static int
 844 sfc_xstats_get_names(struct rte_eth_dev *dev,
 845                      struct rte_eth_xstat_name *xstats_names,
 846                      unsigned int xstats_count)
 847 {
 848         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 849         struct sfc_port *port = &sa->port;
 850         unsigned int i;
 851         unsigned int nstats = 0;
 852         unsigned int nb_written = 0;
 853         int ret;
 854
 855         if (unlikely(xstats_names == NULL))
 856                 return sfc_xstats_get_nb_supported(sa);
 857
 858         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 859                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 860                         if (nstats < xstats_count) {
 861                                 strlcpy(xstats_names[nstats].name,
 862                                         efx_mac_stat_name(sa->nic, i),
 863                                         sizeof(xstats_names[0].name));
 864                                 nb_written++;
 865                         }
 866                         nstats++;
 867                 }
 868         }
 869
 870         ret = sfc_sw_xstats_get_names(sa, xstats_names, xstats_count,
 871                                       &nb_written, &nstats);
 872         if (ret != 0) {
 873                 SFC_ASSERT(ret < 0);
 874                 return ret;
 875         }
 876
 877         return nstats;
 878 }
 879
 880 static int
 881 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 882                      uint64_t *values, unsigned int n)
 883 {
 884         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 885         struct sfc_port *port = &sa->port;
 886         unsigned int nb_supported;
 887         unsigned int i;
 888         int rc;
 889
 890         if (unlikely(ids == NULL || values == NULL))
 891                 return -EINVAL;
 892
 893         /*
 894          * Values array could be filled in nonsequential order. Fill values with
 895          * constant indicating invalid ID first.
 896          */
 897         for (i = 0; i < n; i++)
 898                 values[i] = SFC_XSTAT_ID_INVALID_VAL;
 899
 900         rc = sfc_port_get_mac_stats_by_id(sa, ids, values, n);
 901         if (rc != 0)
 902                 return rc;
 903
 904         nb_supported = port->mac_stats_nb_supported;
 905         sfc_sw_xstats_get_vals_by_id(sa, ids, values, n, &nb_supported);
 906
 907         /* Return number of written stats before invalid ID is encountered. */
 908         for (i = 0; i < n; i++) {
 909                 if (values[i] == SFC_XSTAT_ID_INVALID_VAL)
 910                         return i;
 911         }
 912
 913         return n;
 914 }
 915
 916 static int
 917 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 918                            const uint64_t *ids,
 919                            struct rte_eth_xstat_name *xstats_names,
 920                            unsigned int size)
 921 {
 922         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 923         struct sfc_port *port = &sa->port;
 924         unsigned int nb_supported;
 925         unsigned int i;
 926         int ret;
 927
 928         if (unlikely(xstats_names == NULL && ids != NULL) ||
 929             unlikely(xstats_names != NULL && ids == NULL))
 930                 return -EINVAL;
 931
 932         if (unlikely(xstats_names == NULL && ids == NULL))
 933                 return sfc_xstats_get_nb_supported(sa);
 934
 935         /*
 936          * Names array could be filled in nonsequential order. Fill names with
 937          * string indicating invalid ID first.
 938          */
 939         for (i = 0; i < size; i++)
 940                 xstats_names[i].name[0] = SFC_XSTAT_ID_INVALID_NAME;
 941
 942         sfc_adapter_lock(sa);
 943
 944         SFC_ASSERT(port->mac_stats_nb_supported <=
 945                    RTE_DIM(port->mac_stats_by_id));
 946
 947         for (i = 0; i < size; i++) {
 948                 if (ids[i] < port->mac_stats_nb_supported) {
 949                         strlcpy(xstats_names[i].name,
 950                                 efx_mac_stat_name(sa->nic,
 951                                                  port->mac_stats_by_id[ids[i]]),
 952                                 sizeof(xstats_names[0].name));
 953                 }
 954         }
 955
 956         nb_supported = port->mac_stats_nb_supported;
 957
 958         sfc_adapter_unlock(sa);
 959
 960         ret = sfc_sw_xstats_get_names_by_id(sa, ids, xstats_names, size,
 961                                             &nb_supported);
 962         if (ret != 0) {
 963                 SFC_ASSERT(ret < 0);
 964                 return ret;
 965         }
 966
 967         /* Return number of written names before invalid ID is encountered. */
 968         for (i = 0; i < size; i++) {
 969                 if (xstats_names[i].name[0] == SFC_XSTAT_ID_INVALID_NAME)
 970                         return i;
 971         }
 972
 973         return size;
 974 }
 975
 976 static int
 977 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 978 {
 979         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 980         unsigned int wanted_fc, link_fc;
 981
 982         memset(fc_conf, 0, sizeof(*fc_conf));
 983
 984         sfc_adapter_lock(sa);
 985
 986         if (sa->state == SFC_ETHDEV_STARTED)
 987                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 988         else
 989                 link_fc = sa->port.flow_ctrl;
 990
 991         switch (link_fc) {
 992         case 0:
 993                 fc_conf->mode = RTE_ETH_FC_NONE;
 994                 break;
 995         case EFX_FCNTL_RESPOND:
 996                 fc_conf->mode = RTE_ETH_FC_RX_PAUSE;
 997                 break;
 998         case EFX_FCNTL_GENERATE:
 999                 fc_conf->mode = RTE_ETH_FC_TX_PAUSE;
1000                 break;
1001         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
1002                 fc_conf->mode = RTE_ETH_FC_FULL;
1003                 break;
1004         default:
1005                 sfc_err(sa, "%s: unexpected flow control value %#x",
1006                         __func__, link_fc);
1007         }
1008
1009         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
1010
1011         sfc_adapter_unlock(sa);
1012
1013         return 0;
1014 }
1015
1016 static int
1017 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
1018 {
1019         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1020         struct sfc_port *port = &sa->port;
1021         unsigned int fcntl;
1022         int rc;
1023
1024         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
1025             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
1026             fc_conf->mac_ctrl_frame_fwd != 0) {
1027                 sfc_err(sa, "unsupported flow control settings specified");
1028                 rc = EINVAL;
1029                 goto fail_inval;
1030         }
1031
1032         switch (fc_conf->mode) {
1033         case RTE_ETH_FC_NONE:
1034                 fcntl = 0;
1035                 break;
1036         case RTE_ETH_FC_RX_PAUSE:
1037                 fcntl = EFX_FCNTL_RESPOND;
1038                 break;
1039         case RTE_ETH_FC_TX_PAUSE:
1040                 fcntl = EFX_FCNTL_GENERATE;
1041                 break;
1042         case RTE_ETH_FC_FULL:
1043                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
1044                 break;
1045         default:
1046                 rc = EINVAL;
1047                 goto fail_inval;
1048         }
1049
1050         sfc_adapter_lock(sa);
1051
1052         if (sa->state == SFC_ETHDEV_STARTED) {
1053                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
1054                 if (rc != 0)
1055                         goto fail_mac_fcntl_set;
1056         }
1057
1058         port->flow_ctrl = fcntl;
1059         port->flow_ctrl_autoneg = fc_conf->autoneg;
1060
1061         sfc_adapter_unlock(sa);
1062
1063         return 0;
1064
1065 fail_mac_fcntl_set:
1066         sfc_adapter_unlock(sa);
1067 fail_inval:
1068         SFC_ASSERT(rc > 0);
1069         return -rc;
1070 }
1071
1072 static int
1073 sfc_check_scatter_on_all_rx_queues(struct sfc_adapter *sa, size_t pdu)
1074 {
1075         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
1076         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
1077         boolean_t scatter_enabled;
1078         const char *error;
1079         unsigned int i;
1080
1081         for (i = 0; i < sas->rxq_count; i++) {
1082                 if ((sas->rxq_info[i].state & SFC_RXQ_INITIALIZED) == 0)
1083                         continue;
1084
1085                 scatter_enabled = (sas->rxq_info[i].type_flags &
1086                                    EFX_RXQ_FLAG_SCATTER);
1087
1088                 if (!sfc_rx_check_scatter(pdu, sa->rxq_ctrl[i].buf_size,
1089                                           encp->enc_rx_prefix_size,
1090                                           scatter_enabled,
1091                                           encp->enc_rx_scatter_max, &error)) {
1092                         sfc_err(sa, "MTU check for RxQ %u failed: %s", i,
1093                                 error);
1094                         return EINVAL;
1095                 }
1096         }
1097
1098         return 0;
1099 }
1100
1101 static int
1102 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
1103 {
1104         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1105         size_t pdu = EFX_MAC_PDU(mtu);
1106         size_t old_pdu;
1107         int rc;
1108
1109         sfc_log_init(sa, "mtu=%u", mtu);
1110
1111         rc = EINVAL;
1112         if (pdu < EFX_MAC_PDU_MIN) {
1113                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
1114                         (unsigned int)mtu, (unsigned int)pdu,
1115                         EFX_MAC_PDU_MIN);
1116                 goto fail_inval;
1117         }
1118         if (pdu > EFX_MAC_PDU_MAX) {
1119                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
1120                         (unsigned int)mtu, (unsigned int)pdu,
1121                         (unsigned int)EFX_MAC_PDU_MAX);
1122                 goto fail_inval;
1123         }
1124
1125         sfc_adapter_lock(sa);
1126
1127         rc = sfc_check_scatter_on_all_rx_queues(sa, pdu);
1128         if (rc != 0)
1129                 goto fail_check_scatter;
1130
1131         if (pdu != sa->port.pdu) {
1132                 if (sa->state == SFC_ETHDEV_STARTED) {
1133                         sfc_stop(sa);
1134
1135                         old_pdu = sa->port.pdu;
1136                         sa->port.pdu = pdu;
1137                         rc = sfc_start(sa);
1138                         if (rc != 0)
1139                                 goto fail_start;
1140                 } else {
1141                         sa->port.pdu = pdu;
1142                 }
1143         }
1144
1145         sfc_adapter_unlock(sa);
1146
1147         sfc_log_init(sa, "done");
1148         return 0;
1149
1150 fail_start:
1151         sa->port.pdu = old_pdu;
1152         if (sfc_start(sa) != 0)
1153                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
1154                         "PDU max size - port is stopped",
1155                         (unsigned int)pdu, (unsigned int)old_pdu);
1156
1157 fail_check_scatter:
1158         sfc_adapter_unlock(sa);
1159
1160 fail_inval:
1161         sfc_log_init(sa, "failed %d", rc);
1162         SFC_ASSERT(rc > 0);
1163         return -rc;
1164 }
1165 static int
1166 sfc_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1167 {
1168         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1169         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
1170         struct sfc_port *port = &sa->port;
1171         struct rte_ether_addr *old_addr = &dev->data->mac_addrs[0];
1172         int rc = 0;
1173
1174         sfc_adapter_lock(sa);
1175
1176         if (rte_is_same_ether_addr(mac_addr, &port->default_mac_addr))
1177                 goto unlock;
1178
1179         /*
1180          * Copy the address to the device private data so that
1181          * it could be recalled in the case of adapter restart.
1182          */
1183         rte_ether_addr_copy(mac_addr, &port->default_mac_addr);
1184
1185         /*
1186          * Neither of the two following checks can return
1187          * an error. The new MAC address is preserved in
1188          * the device private data and can be activated
1189          * on the next port start if the user prevents
1190          * isolated mode from being enabled.
1191          */
1192         if (sfc_sa2shared(sa)->isolated) {
1193                 sfc_warn(sa, "isolated mode is active on the port");
1194                 sfc_warn(sa, "will not set MAC address");
1195                 goto unlock;
1196         }
1197
1198         if (sa->state != SFC_ETHDEV_STARTED) {
1199                 sfc_notice(sa, "the port is not started");
1200                 sfc_notice(sa, "the new MAC address will be set on port start");
1201
1202                 goto unlock;
1203         }
1204
1205         if (encp->enc_allow_set_mac_with_installed_filters) {
1206                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
1207                 if (rc != 0) {
1208                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
1209                         goto unlock;
1210                 }
1211
1212                 /*
1213                  * Changing the MAC address by means of MCDI request
1214                  * has no effect on received traffic, therefore
1215                  * we also need to update unicast filters
1216                  */
1217                 rc = sfc_set_rx_mode_unchecked(sa);
1218                 if (rc != 0) {
1219                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
1220                         /* Rollback the old address */
1221                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
1222                         (void)sfc_set_rx_mode_unchecked(sa);
1223                 }
1224         } else {
1225                 sfc_warn(sa, "cannot set MAC address with filters installed");
1226                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
1227                 sfc_warn(sa, "(some traffic may be dropped)");
1228
1229                 /*
1230                  * Since setting MAC address with filters installed is not
1231                  * allowed on the adapter, the new MAC address will be set
1232                  * by means of adapter restart. sfc_start() shall retrieve
1233                  * the new address from the device private data and set it.
1234                  */
1235                 sfc_stop(sa);
1236                 rc = sfc_start(sa);
1237                 if (rc != 0)
1238                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1239         }
1240
1241 unlock:
1242         if (rc != 0)
1243                 rte_ether_addr_copy(old_addr, &port->default_mac_addr);
1244
1245         sfc_adapter_unlock(sa);
1246
1247         SFC_ASSERT(rc >= 0);
1248         return -rc;
1249 }
1250
1251
1252 static int
1253 sfc_set_mc_addr_list(struct rte_eth_dev *dev,
1254                 struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr)
1255 {
1256         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1257         struct sfc_port *port = &sa->port;
1258         uint8_t *mc_addrs = port->mcast_addrs;
1259         int rc;
1260         unsigned int i;
1261
1262         if (sfc_sa2shared(sa)->isolated) {
1263                 sfc_err(sa, "isolated mode is active on the port");
1264                 sfc_err(sa, "will not set multicast address list");
1265                 return -ENOTSUP;
1266         }
1267
1268         if (mc_addrs == NULL)
1269                 return -ENOBUFS;
1270
1271         if (nb_mc_addr > port->max_mcast_addrs) {
1272                 sfc_err(sa, "too many multicast addresses: %u > %u",
1273                          nb_mc_addr, port->max_mcast_addrs);
1274                 return -EINVAL;
1275         }
1276
1277         for (i = 0; i < nb_mc_addr; ++i) {
1278                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1279                                  EFX_MAC_ADDR_LEN);
1280                 mc_addrs += EFX_MAC_ADDR_LEN;
1281         }
1282
1283         port->nb_mcast_addrs = nb_mc_addr;
1284
1285         if (sa->state != SFC_ETHDEV_STARTED)
1286                 return 0;
1287
1288         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1289                                         port->nb_mcast_addrs);
1290         if (rc != 0)
1291                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1292
1293         SFC_ASSERT(rc >= 0);
1294         return -rc;
1295 }
1296
1297 /*
1298  * The function is used by the secondary process as well. It must not
1299  * use any process-local pointers from the adapter data.
1300  */
1301 static void
1302 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t ethdev_qid,
1303                       struct rte_eth_rxq_info *qinfo)
1304 {
1305         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1306         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1307         struct sfc_rxq_info *rxq_info;
1308
1309         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1310
1311         qinfo->mp = rxq_info->refill_mb_pool;
1312         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1313         qinfo->conf.rx_drop_en = 1;
1314         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1315         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1316         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1317                 qinfo->conf.offloads |= RTE_ETH_RX_OFFLOAD_SCATTER;
1318                 qinfo->scattered_rx = 1;
1319         }
1320         qinfo->nb_desc = rxq_info->entries;
1321 }
1322
1323 /*
1324  * The function is used by the secondary process as well. It must not
1325  * use any process-local pointers from the adapter data.
1326  */
1327 static void
1328 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t ethdev_qid,
1329                       struct rte_eth_txq_info *qinfo)
1330 {
1331         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1332         struct sfc_txq_info *txq_info;
1333
1334         SFC_ASSERT(ethdev_qid < sas->ethdev_txq_count);
1335
1336         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
1337
1338         memset(qinfo, 0, sizeof(*qinfo));
1339
1340         qinfo->conf.offloads = txq_info->offloads;
1341         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1342         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1343         qinfo->nb_desc = txq_info->entries;
1344 }
1345
1346 /*
1347  * The function is used by the secondary process as well. It must not
1348  * use any process-local pointers from the adapter data.
1349  */
1350 static uint32_t
1351 sfc_rx_queue_count(void *rx_queue)
1352 {
1353         struct sfc_dp_rxq *dp_rxq = rx_queue;
1354         const struct sfc_dp_rx *dp_rx;
1355         struct sfc_rxq_info *rxq_info;
1356
1357         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1358         rxq_info = sfc_rxq_info_by_dp_rxq(dp_rxq);
1359
1360         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1361                 return 0;
1362
1363         return dp_rx->qdesc_npending(dp_rxq);
1364 }
1365
1366 /*
1367  * The function is used by the secondary process as well. It must not
1368  * use any process-local pointers from the adapter data.
1369  */
1370 static int
1371 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1372 {
1373         struct sfc_dp_rxq *dp_rxq = queue;
1374         const struct sfc_dp_rx *dp_rx;
1375
1376         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1377
1378         return dp_rx->qdesc_status(dp_rxq, offset);
1379 }
1380
1381 /*
1382  * The function is used by the secondary process as well. It must not
1383  * use any process-local pointers from the adapter data.
1384  */
1385 static int
1386 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1387 {
1388         struct sfc_dp_txq *dp_txq = queue;
1389         const struct sfc_dp_tx *dp_tx;
1390
1391         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1392
1393         return dp_tx->qdesc_status(dp_txq, offset);
1394 }
1395
1396 static int
1397 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1398 {
1399         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1400         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1401         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1402         struct sfc_rxq_info *rxq_info;
1403         sfc_sw_index_t sw_index;
1404         int rc;
1405
1406         sfc_log_init(sa, "RxQ=%u", ethdev_qid);
1407
1408         sfc_adapter_lock(sa);
1409
1410         rc = EINVAL;
1411         if (sa->state != SFC_ETHDEV_STARTED)
1412                 goto fail_not_started;
1413
1414         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1415         if (rxq_info->state != SFC_RXQ_INITIALIZED)
1416                 goto fail_not_setup;
1417
1418         sw_index = sfc_rxq_sw_index_by_ethdev_rx_qid(sas, sfc_ethdev_qid);
1419         rc = sfc_rx_qstart(sa, sw_index);
1420         if (rc != 0)
1421                 goto fail_rx_qstart;
1422
1423         rxq_info->deferred_started = B_TRUE;
1424
1425         sfc_adapter_unlock(sa);
1426
1427         return 0;
1428
1429 fail_rx_qstart:
1430 fail_not_setup:
1431 fail_not_started:
1432         sfc_adapter_unlock(sa);
1433         SFC_ASSERT(rc > 0);
1434         return -rc;
1435 }
1436
1437 static int
1438 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1439 {
1440         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1441         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1442         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1443         struct sfc_rxq_info *rxq_info;
1444         sfc_sw_index_t sw_index;
1445
1446         sfc_log_init(sa, "RxQ=%u", ethdev_qid);
1447
1448         sfc_adapter_lock(sa);
1449
1450         sw_index = sfc_rxq_sw_index_by_ethdev_rx_qid(sas, sfc_ethdev_qid);
1451         sfc_rx_qstop(sa, sw_index);
1452
1453         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1454         rxq_info->deferred_started = B_FALSE;
1455
1456         sfc_adapter_unlock(sa);
1457
1458         return 0;
1459 }
1460
1461 static int
1462 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1463 {
1464         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1465         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1466         struct sfc_txq_info *txq_info;
1467         sfc_sw_index_t sw_index;
1468         int rc;
1469
1470         sfc_log_init(sa, "TxQ = %u", ethdev_qid);
1471
1472         sfc_adapter_lock(sa);
1473
1474         rc = EINVAL;
1475         if (sa->state != SFC_ETHDEV_STARTED)
1476                 goto fail_not_started;
1477
1478         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
1479         if (txq_info->state != SFC_TXQ_INITIALIZED)
1480                 goto fail_not_setup;
1481
1482         sw_index = sfc_txq_sw_index_by_ethdev_tx_qid(sas, ethdev_qid);
1483         rc = sfc_tx_qstart(sa, sw_index);
1484         if (rc != 0)
1485                 goto fail_tx_qstart;
1486
1487         txq_info->deferred_started = B_TRUE;
1488
1489         sfc_adapter_unlock(sa);
1490         return 0;
1491
1492 fail_tx_qstart:
1493
1494 fail_not_setup:
1495 fail_not_started:
1496         sfc_adapter_unlock(sa);
1497         SFC_ASSERT(rc > 0);
1498         return -rc;
1499 }
1500
1501 static int
1502 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1503 {
1504         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1505         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1506         struct sfc_txq_info *txq_info;
1507         sfc_sw_index_t sw_index;
1508
1509         sfc_log_init(sa, "TxQ = %u", ethdev_qid);
1510
1511         sfc_adapter_lock(sa);
1512
1513         sw_index = sfc_txq_sw_index_by_ethdev_tx_qid(sas, ethdev_qid);
1514         sfc_tx_qstop(sa, sw_index);
1515
1516         txq_info = sfc_txq_info_by_ethdev_qid(sas, ethdev_qid);
1517         txq_info->deferred_started = B_FALSE;
1518
1519         sfc_adapter_unlock(sa);
1520         return 0;
1521 }
1522
1523 static efx_tunnel_protocol_t
1524 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1525 {
1526         switch (rte_type) {
1527         case RTE_ETH_TUNNEL_TYPE_VXLAN:
1528                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1529         case RTE_ETH_TUNNEL_TYPE_GENEVE:
1530                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1531         default:
1532                 return EFX_TUNNEL_NPROTOS;
1533         }
1534 }
1535
1536 enum sfc_udp_tunnel_op_e {
1537         SFC_UDP_TUNNEL_ADD_PORT,
1538         SFC_UDP_TUNNEL_DEL_PORT,
1539 };
1540
1541 static int
1542 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1543                       struct rte_eth_udp_tunnel *tunnel_udp,
1544                       enum sfc_udp_tunnel_op_e op)
1545 {
1546         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1547         efx_tunnel_protocol_t tunnel_proto;
1548         int rc;
1549
1550         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1551                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1552                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1553                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1554
1555         tunnel_proto =
1556                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1557         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1558                 rc = ENOTSUP;
1559                 goto fail_bad_proto;
1560         }
1561
1562         sfc_adapter_lock(sa);
1563
1564         switch (op) {
1565         case SFC_UDP_TUNNEL_ADD_PORT:
1566                 rc = efx_tunnel_config_udp_add(sa->nic,
1567                                                tunnel_udp->udp_port,
1568                                                tunnel_proto);
1569                 break;
1570         case SFC_UDP_TUNNEL_DEL_PORT:
1571                 rc = efx_tunnel_config_udp_remove(sa->nic,
1572                                                   tunnel_udp->udp_port,
1573                                                   tunnel_proto);
1574                 break;
1575         default:
1576                 rc = EINVAL;
1577                 goto fail_bad_op;
1578         }
1579
1580         if (rc != 0)
1581                 goto fail_op;
1582
1583         if (sa->state == SFC_ETHDEV_STARTED) {
1584                 rc = efx_tunnel_reconfigure(sa->nic);
1585                 if (rc == EAGAIN) {
1586                         /*
1587                          * Configuration is accepted by FW and MC reboot
1588                          * is initiated to apply the changes. MC reboot
1589                          * will be handled in a usual way (MC reboot
1590                          * event on management event queue and adapter
1591                          * restart).
1592                          */
1593                         rc = 0;
1594                 } else if (rc != 0) {
1595                         goto fail_reconfigure;
1596                 }
1597         }
1598
1599         sfc_adapter_unlock(sa);
1600         return 0;
1601
1602 fail_reconfigure:
1603         /* Remove/restore entry since the change makes the trouble */
1604         switch (op) {
1605         case SFC_UDP_TUNNEL_ADD_PORT:
1606                 (void)efx_tunnel_config_udp_remove(sa->nic,
1607                                                    tunnel_udp->udp_port,
1608                                                    tunnel_proto);
1609                 break;
1610         case SFC_UDP_TUNNEL_DEL_PORT:
1611                 (void)efx_tunnel_config_udp_add(sa->nic,
1612                                                 tunnel_udp->udp_port,
1613                                                 tunnel_proto);
1614                 break;
1615         }
1616
1617 fail_op:
1618 fail_bad_op:
1619         sfc_adapter_unlock(sa);
1620
1621 fail_bad_proto:
1622         SFC_ASSERT(rc > 0);
1623         return -rc;
1624 }
1625
1626 static int
1627 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1628                             struct rte_eth_udp_tunnel *tunnel_udp)
1629 {
1630         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1631 }
1632
1633 static int
1634 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1635                             struct rte_eth_udp_tunnel *tunnel_udp)
1636 {
1637         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1638 }
1639
1640 /*
1641  * The function is used by the secondary process as well. It must not
1642  * use any process-local pointers from the adapter data.
1643  */
1644 static int
1645 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1646                           struct rte_eth_rss_conf *rss_conf)
1647 {
1648         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1649         struct sfc_rss *rss = &sas->rss;
1650
1651         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1652                 return -ENOTSUP;
1653
1654         /*
1655          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1656          * hence, conversion is done here to derive a correct set of RTE_ETH_RSS
1657          * flags which corresponds to the active EFX configuration stored
1658          * locally in 'sfc_adapter' and kept up-to-date
1659          */
1660         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(rss, rss->hash_types);
1661         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1662         if (rss_conf->rss_key != NULL)
1663                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1664
1665         return 0;
1666 }
1667
1668 static int
1669 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1670                         struct rte_eth_rss_conf *rss_conf)
1671 {
1672         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1673         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1674         unsigned int efx_hash_types;
1675         uint32_t contexts[] = {EFX_RSS_CONTEXT_DEFAULT, rss->dummy_rss_context};
1676         unsigned int n_contexts;
1677         unsigned int mode_i = 0;
1678         unsigned int key_i = 0;
1679         unsigned int i = 0;
1680         int rc = 0;
1681
1682         n_contexts = rss->dummy_rss_context == EFX_RSS_CONTEXT_DEFAULT ? 1 : 2;
1683
1684         if (sfc_sa2shared(sa)->isolated)
1685                 return -ENOTSUP;
1686
1687         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1688                 sfc_err(sa, "RSS is not available");
1689                 return -ENOTSUP;
1690         }
1691
1692         if (rss->channels == 0) {
1693                 sfc_err(sa, "RSS is not configured");
1694                 return -EINVAL;
1695         }
1696
1697         if ((rss_conf->rss_key != NULL) &&
1698             (rss_conf->rss_key_len != sizeof(rss->key))) {
1699                 sfc_err(sa, "RSS key size is wrong (should be %zu)",
1700                         sizeof(rss->key));
1701                 return -EINVAL;
1702         }
1703
1704         sfc_adapter_lock(sa);
1705
1706         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1707         if (rc != 0)
1708                 goto fail_rx_hf_rte_to_efx;
1709
1710         for (mode_i = 0; mode_i < n_contexts; mode_i++) {
1711                 rc = efx_rx_scale_mode_set(sa->nic, contexts[mode_i],
1712                                            rss->hash_alg, efx_hash_types,
1713                                            B_TRUE);
1714                 if (rc != 0)
1715                         goto fail_scale_mode_set;
1716         }
1717
1718         if (rss_conf->rss_key != NULL) {
1719                 if (sa->state == SFC_ETHDEV_STARTED) {
1720                         for (key_i = 0; key_i < n_contexts; key_i++) {
1721                                 rc = efx_rx_scale_key_set(sa->nic,
1722                                                           contexts[key_i],
1723                                                           rss_conf->rss_key,
1724                                                           sizeof(rss->key));
1725                                 if (rc != 0)
1726                                         goto fail_scale_key_set;
1727                         }
1728                 }
1729
1730                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1731         }
1732
1733         rss->hash_types = efx_hash_types;
1734
1735         sfc_adapter_unlock(sa);
1736
1737         return 0;
1738
1739 fail_scale_key_set:
1740         for (i = 0; i < key_i; i++) {
1741                 if (efx_rx_scale_key_set(sa->nic, contexts[i], rss->key,
1742                                          sizeof(rss->key)) != 0)
1743                         sfc_err(sa, "failed to restore RSS key");
1744         }
1745
1746 fail_scale_mode_set:
1747         for (i = 0; i < mode_i; i++) {
1748                 if (efx_rx_scale_mode_set(sa->nic, contexts[i],
1749                                           EFX_RX_HASHALG_TOEPLITZ,
1750                                           rss->hash_types, B_TRUE) != 0)
1751                         sfc_err(sa, "failed to restore RSS mode");
1752         }
1753
1754 fail_rx_hf_rte_to_efx:
1755         sfc_adapter_unlock(sa);
1756         return -rc;
1757 }
1758
1759 /*
1760  * The function is used by the secondary process as well. It must not
1761  * use any process-local pointers from the adapter data.
1762  */
1763 static int
1764 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1765                        struct rte_eth_rss_reta_entry64 *reta_conf,
1766                        uint16_t reta_size)
1767 {
1768         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1769         struct sfc_rss *rss = &sas->rss;
1770         int entry;
1771
1772         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || sas->isolated)
1773                 return -ENOTSUP;
1774
1775         if (rss->channels == 0)
1776                 return -EINVAL;
1777
1778         if (reta_size != EFX_RSS_TBL_SIZE)
1779                 return -EINVAL;
1780
1781         for (entry = 0; entry < reta_size; entry++) {
1782                 int grp = entry / RTE_ETH_RETA_GROUP_SIZE;
1783                 int grp_idx = entry % RTE_ETH_RETA_GROUP_SIZE;
1784
1785                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1786                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1787         }
1788
1789         return 0;
1790 }
1791
1792 static int
1793 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1794                         struct rte_eth_rss_reta_entry64 *reta_conf,
1795                         uint16_t reta_size)
1796 {
1797         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1798         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1799         unsigned int *rss_tbl_new;
1800         uint16_t entry;
1801         int rc = 0;
1802
1803
1804         if (sfc_sa2shared(sa)->isolated)
1805                 return -ENOTSUP;
1806
1807         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1808                 sfc_err(sa, "RSS is not available");
1809                 return -ENOTSUP;
1810         }
1811
1812         if (rss->channels == 0) {
1813                 sfc_err(sa, "RSS is not configured");
1814                 return -EINVAL;
1815         }
1816
1817         if (reta_size != EFX_RSS_TBL_SIZE) {
1818                 sfc_err(sa, "RETA size is wrong (should be %u)",
1819                         EFX_RSS_TBL_SIZE);
1820                 return -EINVAL;
1821         }
1822
1823         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1824         if (rss_tbl_new == NULL)
1825                 return -ENOMEM;
1826
1827         sfc_adapter_lock(sa);
1828
1829         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1830
1831         for (entry = 0; entry < reta_size; entry++) {
1832                 int grp_idx = entry % RTE_ETH_RETA_GROUP_SIZE;
1833                 struct rte_eth_rss_reta_entry64 *grp;
1834
1835                 grp = &reta_conf[entry / RTE_ETH_RETA_GROUP_SIZE];
1836
1837                 if (grp->mask & (1ull << grp_idx)) {
1838                         if (grp->reta[grp_idx] >= rss->channels) {
1839                                 rc = EINVAL;
1840                                 goto bad_reta_entry;
1841                         }
1842                         rss_tbl_new[entry] = grp->reta[grp_idx];
1843                 }
1844         }
1845
1846         if (sa->state == SFC_ETHDEV_STARTED) {
1847                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1848                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1849                 if (rc != 0)
1850                         goto fail_scale_tbl_set;
1851         }
1852
1853         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1854
1855 fail_scale_tbl_set:
1856 bad_reta_entry:
1857         sfc_adapter_unlock(sa);
1858
1859         rte_free(rss_tbl_new);
1860
1861         SFC_ASSERT(rc >= 0);
1862         return -rc;
1863 }
1864
1865 static int
1866 sfc_dev_flow_ops_get(struct rte_eth_dev *dev __rte_unused,
1867                      const struct rte_flow_ops **ops)
1868 {
1869         *ops = &sfc_flow_ops;
1870         return 0;
1871 }
1872
1873 static int
1874 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1875 {
1876         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1877
1878         /*
1879          * If Rx datapath does not provide callback to check mempool,
1880          * all pools are supported.
1881          */
1882         if (sap->dp_rx->pool_ops_supported == NULL)
1883                 return 1;
1884
1885         return sap->dp_rx->pool_ops_supported(pool);
1886 }
1887
1888 static int
1889 sfc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1890 {
1891         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1892         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1893         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1894         struct sfc_rxq_info *rxq_info;
1895
1896         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1897
1898         return sap->dp_rx->intr_enable(rxq_info->dp);
1899 }
1900
1901 static int
1902 sfc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t ethdev_qid)
1903 {
1904         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1905         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1906         sfc_ethdev_qid_t sfc_ethdev_qid = ethdev_qid;
1907         struct sfc_rxq_info *rxq_info;
1908
1909         rxq_info = sfc_rxq_info_by_ethdev_qid(sas, sfc_ethdev_qid);
1910
1911         return sap->dp_rx->intr_disable(rxq_info->dp);
1912 }
1913
1914 struct sfc_mport_journal_ctx {
1915         struct sfc_adapter              *sa;
1916         uint16_t                        switch_domain_id;
1917         uint32_t                        mcdi_handle;
1918         bool                            controllers_assigned;
1919         efx_pcie_interface_t            *controllers;
1920         size_t                          nb_controllers;
1921 };
1922
1923 static int
1924 sfc_journal_ctx_add_controller(struct sfc_mport_journal_ctx *ctx,
1925                                efx_pcie_interface_t intf)
1926 {
1927         efx_pcie_interface_t *new_controllers;
1928         size_t i, target;
1929         size_t new_size;
1930
1931         if (ctx->controllers == NULL) {
1932                 ctx->controllers = rte_malloc("sfc_controller_mapping",
1933                                               sizeof(ctx->controllers[0]), 0);
1934                 if (ctx->controllers == NULL)
1935                         return ENOMEM;
1936
1937                 ctx->controllers[0] = intf;
1938                 ctx->nb_controllers = 1;
1939
1940                 return 0;
1941         }
1942
1943         for (i = 0; i < ctx->nb_controllers; i++) {
1944                 if (ctx->controllers[i] == intf)
1945                         return 0;
1946                 if (ctx->controllers[i] > intf)
1947                         break;
1948         }
1949         target = i;
1950
1951         ctx->nb_controllers += 1;
1952         new_size = ctx->nb_controllers * sizeof(ctx->controllers[0]);
1953
1954         new_controllers = rte_realloc(ctx->controllers, new_size, 0);
1955         if (new_controllers == NULL) {
1956                 rte_free(ctx->controllers);
1957                 return ENOMEM;
1958         }
1959         ctx->controllers = new_controllers;
1960
1961         for (i = target + 1; i < ctx->nb_controllers; i++)
1962                 ctx->controllers[i] = ctx->controllers[i - 1];
1963
1964         ctx->controllers[target] = intf;
1965
1966         return 0;
1967 }
1968
1969 static efx_rc_t
1970 sfc_process_mport_journal_entry(struct sfc_mport_journal_ctx *ctx,
1971                                 efx_mport_desc_t *mport)
1972 {
1973         struct sfc_mae_switch_port_request req;
1974         efx_mport_sel_t entity_selector;
1975         efx_mport_sel_t ethdev_mport;
1976         uint16_t switch_port_id;
1977         efx_rc_t efx_rc;
1978         int rc;
1979
1980         sfc_dbg(ctx->sa,
1981                 "processing mport id %u (controller %u pf %u vf %u)",
1982                 mport->emd_id.id, mport->emd_vnic.ev_intf,
1983                 mport->emd_vnic.ev_pf, mport->emd_vnic.ev_vf);
1984         efx_mae_mport_invalid(&ethdev_mport);
1985
1986         if (!ctx->controllers_assigned) {
1987                 rc = sfc_journal_ctx_add_controller(ctx,
1988                                                     mport->emd_vnic.ev_intf);
1989                 if (rc != 0)
1990                         return rc;
1991         }
1992
1993         /* Build Mport selector */
1994         efx_rc = efx_mae_mport_by_pcie_mh_function(mport->emd_vnic.ev_intf,
1995                                                 mport->emd_vnic.ev_pf,
1996                                                 mport->emd_vnic.ev_vf,
1997                                                 &entity_selector);
1998         if (efx_rc != 0) {
1999                 sfc_err(ctx->sa, "failed to build entity mport selector for c%upf%uvf%u",
2000                         mport->emd_vnic.ev_intf,
2001                         mport->emd_vnic.ev_pf,
2002                         mport->emd_vnic.ev_vf);
2003                 return efx_rc;
2004         }
2005
2006         rc = sfc_mae_switch_port_id_by_entity(ctx->switch_domain_id,
2007                                               &entity_selector,
2008                                               SFC_MAE_SWITCH_PORT_REPRESENTOR,
2009                                               &switch_port_id);
2010         switch (rc) {
2011         case 0:
2012                 /* Already registered */
2013                 break;
2014         case ENOENT:
2015                 /*
2016                  * No representor has been created for this entity.
2017                  * Create a dummy switch registry entry with an invalid ethdev
2018                  * mport selector. When a corresponding representor is created,
2019                  * this entry will be updated.
2020                  */
2021                 req.type = SFC_MAE_SWITCH_PORT_REPRESENTOR;
2022                 req.entity_mportp = &entity_selector;
2023                 req.ethdev_mportp = &ethdev_mport;
2024                 req.ethdev_port_id = RTE_MAX_ETHPORTS;
2025                 req.port_data.repr.intf = mport->emd_vnic.ev_intf;
2026                 req.port_data.repr.pf = mport->emd_vnic.ev_pf;
2027                 req.port_data.repr.vf = mport->emd_vnic.ev_vf;
2028
2029                 rc = sfc_mae_assign_switch_port(ctx->switch_domain_id,
2030                                                 &req, &switch_port_id);
2031                 if (rc != 0) {
2032                         sfc_err(ctx->sa,
2033                                 "failed to assign MAE switch port for c%upf%uvf%u: %s",
2034                                 mport->emd_vnic.ev_intf,
2035                                 mport->emd_vnic.ev_pf,
2036                                 mport->emd_vnic.ev_vf,
2037                                 rte_strerror(rc));
2038                         return rc;
2039                 }
2040                 break;
2041         default:
2042                 sfc_err(ctx->sa, "failed to find MAE switch port for c%upf%uvf%u: %s",
2043                         mport->emd_vnic.ev_intf,
2044                         mport->emd_vnic.ev_pf,
2045                         mport->emd_vnic.ev_vf,
2046                         rte_strerror(rc));
2047                 return rc;
2048         }
2049
2050         return 0;
2051 }
2052
2053 static efx_rc_t
2054 sfc_process_mport_journal_cb(void *data, efx_mport_desc_t *mport,
2055                              size_t mport_len)
2056 {
2057         struct sfc_mport_journal_ctx *ctx = data;
2058
2059         if (ctx == NULL || ctx->sa == NULL) {
2060                 sfc_err(ctx->sa, "received NULL context or SFC adapter");
2061                 return EINVAL;
2062         }
2063
2064         if (mport_len != sizeof(*mport)) {
2065                 sfc_err(ctx->sa, "actual and expected mport buffer sizes differ");
2066                 return EINVAL;
2067         }
2068
2069         SFC_ASSERT(sfc_adapter_is_locked(ctx->sa));
2070
2071         /*
2072          * If a zombie flag is set, it means the mport has been marked for
2073          * deletion and cannot be used for any new operations. The mport will
2074          * be destroyed completely once all references to it are released.
2075          */
2076         if (mport->emd_zombie) {
2077                 sfc_dbg(ctx->sa, "mport is a zombie, skipping");
2078                 return 0;
2079         }
2080         if (mport->emd_type != EFX_MPORT_TYPE_VNIC) {
2081                 sfc_dbg(ctx->sa, "mport is not a VNIC, skipping");
2082                 return 0;
2083         }
2084         if (mport->emd_vnic.ev_client_type != EFX_MPORT_VNIC_CLIENT_FUNCTION) {
2085                 sfc_dbg(ctx->sa, "mport is not a function, skipping");
2086                 return 0;
2087         }
2088         if (mport->emd_vnic.ev_handle == ctx->mcdi_handle) {
2089                 sfc_dbg(ctx->sa, "mport is this driver instance, skipping");
2090                 return 0;
2091         }
2092
2093         return sfc_process_mport_journal_entry(ctx, mport);
2094 }
2095
2096 static int
2097 sfc_process_mport_journal(struct sfc_adapter *sa)
2098 {
2099         struct sfc_mport_journal_ctx ctx;
2100         const efx_pcie_interface_t *controllers;
2101         size_t nb_controllers;
2102         efx_rc_t efx_rc;
2103         int rc;
2104
2105         memset(&ctx, 0, sizeof(ctx));
2106         ctx.sa = sa;
2107         ctx.switch_domain_id = sa->mae.switch_domain_id;
2108
2109         efx_rc = efx_mcdi_get_own_client_handle(sa->nic, &ctx.mcdi_handle);
2110         if (efx_rc != 0) {
2111                 sfc_err(sa, "failed to get own MCDI handle");
2112                 SFC_ASSERT(efx_rc > 0);
2113                 return efx_rc;
2114         }
2115
2116         rc = sfc_mae_switch_domain_controllers(ctx.switch_domain_id,
2117                                                &controllers, &nb_controllers);
2118         if (rc != 0) {
2119                 sfc_err(sa, "failed to get controller mapping");
2120                 return rc;
2121         }
2122
2123         ctx.controllers_assigned = controllers != NULL;
2124         ctx.controllers = NULL;
2125         ctx.nb_controllers = 0;
2126
2127         efx_rc = efx_mae_read_mport_journal(sa->nic,
2128                                             sfc_process_mport_journal_cb, &ctx);
2129         if (efx_rc != 0) {
2130                 sfc_err(sa, "failed to process MAE mport journal");
2131                 SFC_ASSERT(efx_rc > 0);
2132                 return efx_rc;
2133         }
2134
2135         if (controllers == NULL) {
2136                 rc = sfc_mae_switch_domain_map_controllers(ctx.switch_domain_id,
2137                                                            ctx.controllers,
2138                                                            ctx.nb_controllers);
2139                 if (rc != 0)
2140                         return rc;
2141         }
2142
2143         return 0;
2144 }
2145
2146 static void
2147 sfc_count_representors_cb(enum sfc_mae_switch_port_type type,
2148                           const efx_mport_sel_t *ethdev_mportp __rte_unused,
2149                           uint16_t ethdev_port_id __rte_unused,
2150                           const efx_mport_sel_t *entity_mportp __rte_unused,
2151                           uint16_t switch_port_id __rte_unused,
2152                           union sfc_mae_switch_port_data *port_datap
2153                                 __rte_unused,
2154                           void *user_datap)
2155 {
2156         int *counter = user_datap;
2157
2158         SFC_ASSERT(counter != NULL);
2159
2160         if (type == SFC_MAE_SWITCH_PORT_REPRESENTOR)
2161                 (*counter)++;
2162 }
2163
2164 struct sfc_get_representors_ctx {
2165         struct rte_eth_representor_info *info;
2166         struct sfc_adapter              *sa;
2167         uint16_t                        switch_domain_id;
2168         const efx_pcie_interface_t      *controllers;
2169         size_t                          nb_controllers;
2170 };
2171
2172 static void
2173 sfc_get_representors_cb(enum sfc_mae_switch_port_type type,
2174                         const efx_mport_sel_t *ethdev_mportp __rte_unused,
2175                         uint16_t ethdev_port_id __rte_unused,
2176                         const efx_mport_sel_t *entity_mportp __rte_unused,
2177                         uint16_t switch_port_id,
2178                         union sfc_mae_switch_port_data *port_datap,
2179                         void *user_datap)
2180 {
2181         struct sfc_get_representors_ctx *ctx = user_datap;
2182         struct rte_eth_representor_range *range;
2183         int ret;
2184         int rc;
2185
2186         SFC_ASSERT(ctx != NULL);
2187         SFC_ASSERT(ctx->info != NULL);
2188         SFC_ASSERT(ctx->sa != NULL);
2189
2190         if (type != SFC_MAE_SWITCH_PORT_REPRESENTOR) {
2191                 sfc_dbg(ctx->sa, "not a representor, skipping");
2192                 return;
2193         }
2194         if (ctx->info->nb_ranges >= ctx->info->nb_ranges_alloc) {
2195                 sfc_dbg(ctx->sa, "info structure is full already");
2196                 return;
2197         }
2198
2199         range = &ctx->info->ranges[ctx->info->nb_ranges];
2200         rc = sfc_mae_switch_controller_from_mapping(ctx->controllers,
2201                                                     ctx->nb_controllers,
2202                                                     port_datap->repr.intf,
2203                                                     &range->controller);
2204         if (rc != 0) {
2205                 sfc_err(ctx->sa, "invalid representor controller: %d",
2206                         port_datap->repr.intf);
2207                 range->controller = -1;
2208         }
2209         range->pf = port_datap->repr.pf;
2210         range->id_base = switch_port_id;
2211         range->id_end = switch_port_id;
2212
2213         if (port_datap->repr.vf != EFX_PCI_VF_INVALID) {
2214                 range->type = RTE_ETH_REPRESENTOR_VF;
2215                 range->vf = port_datap->repr.vf;
2216                 ret = snprintf(range->name, RTE_DEV_NAME_MAX_LEN,
2217                                "c%dpf%dvf%d", range->controller, range->pf,
2218                                range->vf);
2219         } else {
2220                 range->type = RTE_ETH_REPRESENTOR_PF;
2221                 ret = snprintf(range->name, RTE_DEV_NAME_MAX_LEN,
2222                          "c%dpf%d", range->controller, range->pf);
2223         }
2224         if (ret >= RTE_DEV_NAME_MAX_LEN) {
2225                 sfc_err(ctx->sa, "representor name has been truncated: %s",
2226                         range->name);
2227         }
2228
2229         ctx->info->nb_ranges++;
2230 }
2231
2232 static int
2233 sfc_representor_info_get(struct rte_eth_dev *dev,
2234                          struct rte_eth_representor_info *info)
2235 {
2236         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
2237         struct sfc_get_representors_ctx get_repr_ctx;
2238         const efx_nic_cfg_t *nic_cfg;
2239         uint16_t switch_domain_id;
2240         uint32_t nb_repr;
2241         int controller;
2242         int rc;
2243
2244         sfc_adapter_lock(sa);
2245
2246         if (sa->mae.status != SFC_MAE_STATUS_ADMIN) {
2247                 sfc_adapter_unlock(sa);
2248                 return -ENOTSUP;
2249         }
2250
2251         rc = sfc_process_mport_journal(sa);
2252         if (rc != 0) {
2253                 sfc_adapter_unlock(sa);
2254                 SFC_ASSERT(rc > 0);
2255                 return -rc;
2256         }
2257
2258         switch_domain_id = sa->mae.switch_domain_id;
2259
2260         nb_repr = 0;
2261         rc = sfc_mae_switch_ports_iterate(switch_domain_id,
2262                                           sfc_count_representors_cb,
2263                                           &nb_repr);
2264         if (rc != 0) {
2265                 sfc_adapter_unlock(sa);
2266                 SFC_ASSERT(rc > 0);
2267                 return -rc;
2268         }
2269
2270         if (info == NULL) {
2271                 sfc_adapter_unlock(sa);
2272                 return nb_repr;
2273         }
2274
2275         rc = sfc_mae_switch_domain_controllers(switch_domain_id,
2276                                                &get_repr_ctx.controllers,
2277                                                &get_repr_ctx.nb_controllers);
2278         if (rc != 0) {
2279                 sfc_adapter_unlock(sa);
2280                 SFC_ASSERT(rc > 0);
2281                 return -rc;
2282         }
2283
2284         nic_cfg = efx_nic_cfg_get(sa->nic);
2285
2286         rc = sfc_mae_switch_domain_get_controller(switch_domain_id,
2287                                                   nic_cfg->enc_intf,
2288                                                   &controller);
2289         if (rc != 0) {
2290                 sfc_err(sa, "invalid controller: %d", nic_cfg->enc_intf);
2291                 controller = -1;
2292         }
2293
2294         info->controller = controller;
2295         info->pf = nic_cfg->enc_pf;
2296
2297         get_repr_ctx.info = info;
2298         get_repr_ctx.sa = sa;
2299         get_repr_ctx.switch_domain_id = switch_domain_id;
2300         rc = sfc_mae_switch_ports_iterate(switch_domain_id,
2301                                           sfc_get_representors_cb,
2302                                           &get_repr_ctx);
2303         if (rc != 0) {
2304                 sfc_adapter_unlock(sa);
2305                 SFC_ASSERT(rc > 0);
2306                 return -rc;
2307         }
2308
2309         sfc_adapter_unlock(sa);
2310         return nb_repr;
2311 }
2312
2313 static int
2314 sfc_rx_metadata_negotiate(struct rte_eth_dev *dev, uint64_t *features)
2315 {
2316         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
2317         uint64_t supported = 0;
2318
2319         sfc_adapter_lock(sa);
2320
2321         if ((sa->priv.dp_rx->features & SFC_DP_RX_FEAT_FLOW_FLAG) != 0)
2322                 supported |= RTE_ETH_RX_METADATA_USER_FLAG;
2323
2324         if ((sa->priv.dp_rx->features & SFC_DP_RX_FEAT_FLOW_MARK) != 0)
2325                 supported |= RTE_ETH_RX_METADATA_USER_MARK;
2326
2327         if (sfc_flow_tunnel_is_supported(sa))
2328                 supported |= RTE_ETH_RX_METADATA_TUNNEL_ID;
2329
2330         sa->negotiated_rx_metadata = supported & *features;
2331         *features = sa->negotiated_rx_metadata;
2332
2333         sfc_adapter_unlock(sa);
2334
2335         return 0;
2336 }
2337
2338 static const struct eth_dev_ops sfc_eth_dev_ops = {
2339         .dev_configure                  = sfc_dev_configure,
2340         .dev_start                      = sfc_dev_start,
2341         .dev_stop                       = sfc_dev_stop,
2342         .dev_set_link_up                = sfc_dev_set_link_up,
2343         .dev_set_link_down              = sfc_dev_set_link_down,
2344         .dev_close                      = sfc_dev_close,
2345         .promiscuous_enable             = sfc_dev_promisc_enable,
2346         .promiscuous_disable            = sfc_dev_promisc_disable,
2347         .allmulticast_enable            = sfc_dev_allmulti_enable,
2348         .allmulticast_disable           = sfc_dev_allmulti_disable,
2349         .link_update                    = sfc_dev_link_update,
2350         .stats_get                      = sfc_stats_get,
2351         .stats_reset                    = sfc_stats_reset,
2352         .xstats_get                     = sfc_xstats_get,
2353         .xstats_reset                   = sfc_stats_reset,
2354         .xstats_get_names               = sfc_xstats_get_names,
2355         .dev_infos_get                  = sfc_dev_infos_get,
2356         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
2357         .mtu_set                        = sfc_dev_set_mtu,
2358         .rx_queue_start                 = sfc_rx_queue_start,
2359         .rx_queue_stop                  = sfc_rx_queue_stop,
2360         .tx_queue_start                 = sfc_tx_queue_start,
2361         .tx_queue_stop                  = sfc_tx_queue_stop,
2362         .rx_queue_setup                 = sfc_rx_queue_setup,
2363         .rx_queue_release               = sfc_rx_queue_release,
2364         .rx_queue_intr_enable           = sfc_rx_queue_intr_enable,
2365         .rx_queue_intr_disable          = sfc_rx_queue_intr_disable,
2366         .tx_queue_setup                 = sfc_tx_queue_setup,
2367         .tx_queue_release               = sfc_tx_queue_release,
2368         .flow_ctrl_get                  = sfc_flow_ctrl_get,
2369         .flow_ctrl_set                  = sfc_flow_ctrl_set,
2370         .mac_addr_set                   = sfc_mac_addr_set,
2371         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
2372         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
2373         .reta_update                    = sfc_dev_rss_reta_update,
2374         .reta_query                     = sfc_dev_rss_reta_query,
2375         .rss_hash_update                = sfc_dev_rss_hash_update,
2376         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
2377         .flow_ops_get                   = sfc_dev_flow_ops_get,
2378         .set_mc_addr_list               = sfc_set_mc_addr_list,
2379         .rxq_info_get                   = sfc_rx_queue_info_get,
2380         .txq_info_get                   = sfc_tx_queue_info_get,
2381         .fw_version_get                 = sfc_fw_version_get,
2382         .xstats_get_by_id               = sfc_xstats_get_by_id,
2383         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
2384         .pool_ops_supported             = sfc_pool_ops_supported,
2385         .representor_info_get           = sfc_representor_info_get,
2386         .rx_metadata_negotiate          = sfc_rx_metadata_negotiate,
2387 };
2388
2389 struct sfc_ethdev_init_data {
2390         uint16_t                nb_representors;
2391 };
2392
2393 /**
2394  * Duplicate a string in potentially shared memory required for
2395  * multi-process support.
2396  *
2397  * strdup() allocates from process-local heap/memory.
2398  */
2399 static char *
2400 sfc_strdup(const char *str)
2401 {
2402         size_t size;
2403         char *copy;
2404
2405         if (str == NULL)
2406                 return NULL;
2407
2408         size = strlen(str) + 1;
2409         copy = rte_malloc(__func__, size, 0);
2410         if (copy != NULL)
2411                 rte_memcpy(copy, str, size);
2412
2413         return copy;
2414 }
2415
2416 static int
2417 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
2418 {
2419         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
2420         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2421         const struct sfc_dp_rx *dp_rx;
2422         const struct sfc_dp_tx *dp_tx;
2423         const efx_nic_cfg_t *encp;
2424         unsigned int avail_caps = 0;
2425         const char *rx_name = NULL;
2426         const char *tx_name = NULL;
2427         int rc;
2428
2429         switch (sa->family) {
2430         case EFX_FAMILY_HUNTINGTON:
2431         case EFX_FAMILY_MEDFORD:
2432         case EFX_FAMILY_MEDFORD2:
2433                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
2434                 avail_caps |= SFC_DP_HW_FW_CAP_RX_EFX;
2435                 avail_caps |= SFC_DP_HW_FW_CAP_TX_EFX;
2436                 break;
2437         case EFX_FAMILY_RIVERHEAD:
2438                 avail_caps |= SFC_DP_HW_FW_CAP_EF100;
2439                 break;
2440         default:
2441                 break;
2442         }
2443
2444         encp = efx_nic_cfg_get(sa->nic);
2445         if (encp->enc_rx_es_super_buffer_supported)
2446                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
2447
2448         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
2449                                 sfc_kvarg_string_handler, &rx_name);
2450         if (rc != 0)
2451                 goto fail_kvarg_rx_datapath;
2452
2453         if (rx_name != NULL) {
2454                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
2455                 if (dp_rx == NULL) {
2456                         sfc_err(sa, "Rx datapath %s not found", rx_name);
2457                         rc = ENOENT;
2458                         goto fail_dp_rx;
2459                 }
2460                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
2461                         sfc_err(sa,
2462                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
2463                                 rx_name);
2464                         rc = EINVAL;
2465                         goto fail_dp_rx_caps;
2466                 }
2467         } else {
2468                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
2469                 if (dp_rx == NULL) {
2470                         sfc_err(sa, "Rx datapath by caps %#x not found",
2471                                 avail_caps);
2472                         rc = ENOENT;
2473                         goto fail_dp_rx;
2474                 }
2475         }
2476
2477         sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
2478         if (sas->dp_rx_name == NULL) {
2479                 rc = ENOMEM;
2480                 goto fail_dp_rx_name;
2481         }
2482
2483         if (strcmp(dp_rx->dp.name, SFC_KVARG_DATAPATH_EF10_ESSB) == 0) {
2484                 /* FLAG and MARK are always available from Rx prefix. */
2485                 sa->negotiated_rx_metadata |= RTE_ETH_RX_METADATA_USER_FLAG;
2486                 sa->negotiated_rx_metadata |= RTE_ETH_RX_METADATA_USER_MARK;
2487         }
2488
2489         sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
2490
2491         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
2492                                 sfc_kvarg_string_handler, &tx_name);
2493         if (rc != 0)
2494                 goto fail_kvarg_tx_datapath;
2495
2496         if (tx_name != NULL) {
2497                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
2498                 if (dp_tx == NULL) {
2499                         sfc_err(sa, "Tx datapath %s not found", tx_name);
2500                         rc = ENOENT;
2501                         goto fail_dp_tx;
2502                 }
2503                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
2504                         sfc_err(sa,
2505                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
2506                                 tx_name);
2507                         rc = EINVAL;
2508                         goto fail_dp_tx_caps;
2509                 }
2510         } else {
2511                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
2512                 if (dp_tx == NULL) {
2513                         sfc_err(sa, "Tx datapath by caps %#x not found",
2514                                 avail_caps);
2515                         rc = ENOENT;
2516                         goto fail_dp_tx;
2517                 }
2518         }
2519
2520         sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
2521         if (sas->dp_tx_name == NULL) {
2522                 rc = ENOMEM;
2523                 goto fail_dp_tx_name;
2524         }
2525
2526         sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
2527
2528         sa->priv.dp_rx = dp_rx;
2529         sa->priv.dp_tx = dp_tx;
2530
2531         dev->rx_pkt_burst = dp_rx->pkt_burst;
2532         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2533         dev->tx_pkt_burst = dp_tx->pkt_burst;
2534
2535         dev->rx_queue_count = sfc_rx_queue_count;
2536         dev->rx_descriptor_status = sfc_rx_descriptor_status;
2537         dev->tx_descriptor_status = sfc_tx_descriptor_status;
2538         dev->dev_ops = &sfc_eth_dev_ops;
2539
2540         return 0;
2541
2542 fail_dp_tx_name:
2543 fail_dp_tx_caps:
2544 fail_dp_tx:
2545 fail_kvarg_tx_datapath:
2546         rte_free(sas->dp_rx_name);
2547         sas->dp_rx_name = NULL;
2548
2549 fail_dp_rx_name:
2550 fail_dp_rx_caps:
2551 fail_dp_rx:
2552 fail_kvarg_rx_datapath:
2553         return rc;
2554 }
2555
2556 static void
2557 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
2558 {
2559         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
2560         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2561
2562         dev->dev_ops = NULL;
2563         dev->tx_pkt_prepare = NULL;
2564         dev->rx_pkt_burst = NULL;
2565         dev->tx_pkt_burst = NULL;
2566
2567         rte_free(sas->dp_tx_name);
2568         sas->dp_tx_name = NULL;
2569         sa->priv.dp_tx = NULL;
2570
2571         rte_free(sas->dp_rx_name);
2572         sas->dp_rx_name = NULL;
2573         sa->priv.dp_rx = NULL;
2574 }
2575
2576 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
2577         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
2578         .reta_query                     = sfc_dev_rss_reta_query,
2579         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
2580         .rxq_info_get                   = sfc_rx_queue_info_get,
2581         .txq_info_get                   = sfc_tx_queue_info_get,
2582 };
2583
2584 static int
2585 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
2586 {
2587         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2588         struct sfc_adapter_priv *sap;
2589         const struct sfc_dp_rx *dp_rx;
2590         const struct sfc_dp_tx *dp_tx;
2591         int rc;
2592
2593         /*
2594          * Allocate process private data from heap, since it should not
2595          * be located in shared memory allocated using rte_malloc() API.
2596          */
2597         sap = calloc(1, sizeof(*sap));
2598         if (sap == NULL) {
2599                 rc = ENOMEM;
2600                 goto fail_alloc_priv;
2601         }
2602
2603         sap->logtype_main = logtype_main;
2604
2605         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
2606         if (dp_rx == NULL) {
2607                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2608                         "cannot find %s Rx datapath", sas->dp_rx_name);
2609                 rc = ENOENT;
2610                 goto fail_dp_rx;
2611         }
2612         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
2613                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2614                         "%s Rx datapath does not support multi-process",
2615                         sas->dp_rx_name);
2616                 rc = EINVAL;
2617                 goto fail_dp_rx_multi_process;
2618         }
2619
2620         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
2621         if (dp_tx == NULL) {
2622                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2623                         "cannot find %s Tx datapath", sas->dp_tx_name);
2624                 rc = ENOENT;
2625                 goto fail_dp_tx;
2626         }
2627         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
2628                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2629                         "%s Tx datapath does not support multi-process",
2630                         sas->dp_tx_name);
2631                 rc = EINVAL;
2632                 goto fail_dp_tx_multi_process;
2633         }
2634
2635         sap->dp_rx = dp_rx;
2636         sap->dp_tx = dp_tx;
2637
2638         dev->process_private = sap;
2639         dev->rx_pkt_burst = dp_rx->pkt_burst;
2640         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2641         dev->tx_pkt_burst = dp_tx->pkt_burst;
2642         dev->rx_queue_count = sfc_rx_queue_count;
2643         dev->rx_descriptor_status = sfc_rx_descriptor_status;
2644         dev->tx_descriptor_status = sfc_tx_descriptor_status;
2645         dev->dev_ops = &sfc_eth_dev_secondary_ops;
2646
2647         return 0;
2648
2649 fail_dp_tx_multi_process:
2650 fail_dp_tx:
2651 fail_dp_rx_multi_process:
2652 fail_dp_rx:
2653         free(sap);
2654
2655 fail_alloc_priv:
2656         return rc;
2657 }
2658
2659 static void
2660 sfc_register_dp(void)
2661 {
2662         /* Register once */
2663         if (TAILQ_EMPTY(&sfc_dp_head)) {
2664                 /* Prefer EF10 datapath */
2665                 sfc_dp_register(&sfc_dp_head, &sfc_ef100_rx.dp);
2666                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2667                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2668                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2669
2670                 sfc_dp_register(&sfc_dp_head, &sfc_ef100_tx.dp);
2671                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2672                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2673                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2674         }
2675 }
2676
2677 static int
2678 sfc_parse_switch_mode(struct sfc_adapter *sa, bool has_representors)
2679 {
2680         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
2681         const char *switch_mode = NULL;
2682         int rc;
2683
2684         sfc_log_init(sa, "entry");
2685
2686         rc = sfc_kvargs_process(sa, SFC_KVARG_SWITCH_MODE,
2687                                 sfc_kvarg_string_handler, &switch_mode);
2688         if (rc != 0)
2689                 goto fail_kvargs;
2690
2691         if (switch_mode == NULL) {
2692                 sa->switchdev = encp->enc_mae_admin &&
2693                                 (!encp->enc_datapath_cap_evb ||
2694                                  has_representors);
2695         } else if (strcasecmp(switch_mode, SFC_KVARG_SWITCH_MODE_LEGACY) == 0) {
2696                 sa->switchdev = false;
2697         } else if (strcasecmp(switch_mode,
2698                               SFC_KVARG_SWITCH_MODE_SWITCHDEV) == 0) {
2699                 sa->switchdev = true;
2700         } else {
2701                 sfc_err(sa, "invalid switch mode device argument '%s'",
2702                         switch_mode);
2703                 rc = EINVAL;
2704                 goto fail_mode;
2705         }
2706
2707         sfc_log_init(sa, "done");
2708
2709         return 0;
2710
2711 fail_mode:
2712 fail_kvargs:
2713         sfc_log_init(sa, "failed: %s", rte_strerror(rc));
2714
2715         return rc;
2716 }
2717
2718 static int
2719 sfc_eth_dev_init(struct rte_eth_dev *dev, void *init_params)
2720 {
2721         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2722         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2723         struct sfc_ethdev_init_data *init_data = init_params;
2724         uint32_t logtype_main;
2725         struct sfc_adapter *sa;
2726         int rc;
2727         const efx_nic_cfg_t *encp;
2728         const struct rte_ether_addr *from;
2729         int ret;
2730
2731         if (sfc_efx_dev_class_get(pci_dev->device.devargs) !=
2732                         SFC_EFX_DEV_CLASS_NET) {
2733                 SFC_GENERIC_LOG(DEBUG,
2734                         "Incompatible device class: skip probing, should be probed by other sfc driver.");
2735                 return 1;
2736         }
2737
2738         rc = sfc_dp_mport_register();
2739         if (rc != 0)
2740                 return rc;
2741
2742         sfc_register_dp();
2743
2744         logtype_main = sfc_register_logtype(&pci_dev->addr,
2745                                             SFC_LOGTYPE_MAIN_STR,
2746                                             RTE_LOG_NOTICE);
2747
2748         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2749                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2750
2751         /* Required for logging */
2752         ret = snprintf(sas->log_prefix, sizeof(sas->log_prefix),
2753                         "PMD: sfc_efx " PCI_PRI_FMT " #%" PRIu16 ": ",
2754                         pci_dev->addr.domain, pci_dev->addr.bus,
2755                         pci_dev->addr.devid, pci_dev->addr.function,
2756                         dev->data->port_id);
2757         if (ret < 0 || ret >= (int)sizeof(sas->log_prefix)) {
2758                 SFC_GENERIC_LOG(ERR,
2759                         "reserved log prefix is too short for " PCI_PRI_FMT,
2760                         pci_dev->addr.domain, pci_dev->addr.bus,
2761                         pci_dev->addr.devid, pci_dev->addr.function);
2762                 return -EINVAL;
2763         }
2764         sas->pci_addr = pci_dev->addr;
2765         sas->port_id = dev->data->port_id;
2766
2767         /*
2768          * Allocate process private data from heap, since it should not
2769          * be located in shared memory allocated using rte_malloc() API.
2770          */
2771         sa = calloc(1, sizeof(*sa));
2772         if (sa == NULL) {
2773                 rc = ENOMEM;
2774                 goto fail_alloc_sa;
2775         }
2776
2777         dev->process_private = sa;
2778
2779         /* Required for logging */
2780         sa->priv.shared = sas;
2781         sa->priv.logtype_main = logtype_main;
2782
2783         sa->eth_dev = dev;
2784
2785         /* Copy PCI device info to the dev->data */
2786         rte_eth_copy_pci_info(dev, pci_dev);
2787         dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
2788
2789         rc = sfc_kvargs_parse(sa);
2790         if (rc != 0)
2791                 goto fail_kvargs_parse;
2792
2793         sfc_log_init(sa, "entry");
2794
2795         dev->data->mac_addrs = rte_zmalloc("sfc", RTE_ETHER_ADDR_LEN, 0);
2796         if (dev->data->mac_addrs == NULL) {
2797                 rc = ENOMEM;
2798                 goto fail_mac_addrs;
2799         }
2800
2801         sfc_adapter_lock_init(sa);
2802         sfc_adapter_lock(sa);
2803
2804         sfc_log_init(sa, "probing");
2805         rc = sfc_probe(sa);
2806         if (rc != 0)
2807                 goto fail_probe;
2808
2809         /*
2810          * Selecting a default switch mode requires the NIC to be probed and
2811          * to have its capabilities filled in.
2812          */
2813         rc = sfc_parse_switch_mode(sa, init_data->nb_representors > 0);
2814         if (rc != 0)
2815                 goto fail_switch_mode;
2816
2817         sfc_log_init(sa, "set device ops");
2818         rc = sfc_eth_dev_set_ops(dev);
2819         if (rc != 0)
2820                 goto fail_set_ops;
2821
2822         sfc_log_init(sa, "attaching");
2823         rc = sfc_attach(sa);
2824         if (rc != 0)
2825                 goto fail_attach;
2826
2827         if (sa->switchdev && sa->mae.status != SFC_MAE_STATUS_ADMIN) {
2828                 sfc_err(sa,
2829                         "failed to enable switchdev mode without admin MAE privilege");
2830                 rc = ENOTSUP;
2831                 goto fail_switchdev_no_mae;
2832         }
2833
2834         encp = efx_nic_cfg_get(sa->nic);
2835
2836         /*
2837          * The arguments are really reverse order in comparison to
2838          * Linux kernel. Copy from NIC config to Ethernet device data.
2839          */
2840         from = (const struct rte_ether_addr *)(encp->enc_mac_addr);
2841         rte_ether_addr_copy(from, &dev->data->mac_addrs[0]);
2842
2843         sfc_adapter_unlock(sa);
2844
2845         sfc_log_init(sa, "done");
2846         return 0;
2847
2848 fail_switchdev_no_mae:
2849         sfc_detach(sa);
2850
2851 fail_attach:
2852         sfc_eth_dev_clear_ops(dev);
2853
2854 fail_set_ops:
2855 fail_switch_mode:
2856         sfc_unprobe(sa);
2857
2858 fail_probe:
2859         sfc_adapter_unlock(sa);
2860         sfc_adapter_lock_fini(sa);
2861         rte_free(dev->data->mac_addrs);
2862         dev->data->mac_addrs = NULL;
2863
2864 fail_mac_addrs:
2865         sfc_kvargs_cleanup(sa);
2866
2867 fail_kvargs_parse:
2868         sfc_log_init(sa, "failed %d", rc);
2869         dev->process_private = NULL;
2870         free(sa);
2871
2872 fail_alloc_sa:
2873         SFC_ASSERT(rc > 0);
2874         return -rc;
2875 }
2876
2877 static int
2878 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2879 {
2880         sfc_dev_close(dev);
2881
2882         return 0;
2883 }
2884
2885 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2886         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2887         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2888         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2889         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2890         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2891         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2892         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2893         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2894         { RTE_PCI_DEVICE(EFX_PCI_VENID_XILINX, EFX_PCI_DEVID_RIVERHEAD) },
2895         { RTE_PCI_DEVICE(EFX_PCI_VENID_XILINX, EFX_PCI_DEVID_RIVERHEAD_VF) },
2896         { .vendor_id = 0 /* sentinel */ }
2897 };
2898
2899 static int
2900 sfc_parse_rte_devargs(const char *args, struct rte_eth_devargs *devargs)
2901 {
2902         struct rte_eth_devargs eth_da = { .nb_representor_ports = 0 };
2903         int rc;
2904
2905         if (args != NULL) {
2906                 rc = rte_eth_devargs_parse(args, &eth_da);
2907                 if (rc != 0) {
2908                         SFC_GENERIC_LOG(ERR,
2909                                         "Failed to parse generic devargs '%s'",
2910                                         args);
2911                         return rc;
2912                 }
2913         }
2914
2915         *devargs = eth_da;
2916
2917         return 0;
2918 }
2919
2920 static int
2921 sfc_eth_dev_find_or_create(struct rte_pci_device *pci_dev,
2922                            struct sfc_ethdev_init_data *init_data,
2923                            struct rte_eth_dev **devp,
2924                            bool *dev_created)
2925 {
2926         struct rte_eth_dev *dev;
2927         bool created = false;
2928         int rc;
2929
2930         dev = rte_eth_dev_allocated(pci_dev->device.name);
2931         if (dev == NULL) {
2932                 rc = rte_eth_dev_create(&pci_dev->device, pci_dev->device.name,
2933                                         sizeof(struct sfc_adapter_shared),
2934                                         eth_dev_pci_specific_init, pci_dev,
2935                                         sfc_eth_dev_init, init_data);
2936                 if (rc != 0) {
2937                         SFC_GENERIC_LOG(ERR, "Failed to create sfc ethdev '%s'",
2938                                         pci_dev->device.name);
2939                         return rc;
2940                 }
2941
2942                 created = true;
2943
2944                 dev = rte_eth_dev_allocated(pci_dev->device.name);
2945                 if (dev == NULL) {
2946                         SFC_GENERIC_LOG(ERR,
2947                                 "Failed to find allocated sfc ethdev '%s'",
2948                                 pci_dev->device.name);
2949                         return -ENODEV;
2950                 }
2951         }
2952
2953         *devp = dev;
2954         *dev_created = created;
2955
2956         return 0;
2957 }
2958
2959 static int
2960 sfc_eth_dev_create_repr(struct sfc_adapter *sa,
2961                         efx_pcie_interface_t controller,
2962                         uint16_t port,
2963                         uint16_t repr_port,
2964                         enum rte_eth_representor_type type)
2965 {
2966         struct sfc_repr_entity_info entity;
2967         efx_mport_sel_t mport_sel;
2968         int rc;
2969
2970         switch (type) {
2971         case RTE_ETH_REPRESENTOR_NONE:
2972                 return 0;
2973         case RTE_ETH_REPRESENTOR_VF:
2974         case RTE_ETH_REPRESENTOR_PF:
2975                 break;
2976         case RTE_ETH_REPRESENTOR_SF:
2977                 sfc_err(sa, "SF representors are not supported");
2978                 return ENOTSUP;
2979         default:
2980                 sfc_err(sa, "unknown representor type: %d", type);
2981                 return ENOTSUP;
2982         }
2983
2984         rc = efx_mae_mport_by_pcie_mh_function(controller,
2985                                                port,
2986                                                repr_port,
2987                                                &mport_sel);
2988         if (rc != 0) {
2989                 sfc_err(sa,
2990                         "failed to get m-port selector for controller %u port %u repr_port %u: %s",
2991                         controller, port, repr_port, rte_strerror(-rc));
2992                 return rc;
2993         }
2994
2995         memset(&entity, 0, sizeof(entity));
2996         entity.type = type;
2997         entity.intf = controller;
2998         entity.pf = port;
2999         entity.vf = repr_port;
3000
3001         rc = sfc_repr_create(sa->eth_dev, &entity, sa->mae.switch_domain_id,
3002                              &mport_sel);
3003         if (rc != 0) {
3004                 sfc_err(sa,
3005                         "failed to create representor for controller %u port %u repr_port %u: %s",
3006                         controller, port, repr_port, rte_strerror(-rc));
3007                 return rc;
3008         }
3009
3010         return 0;
3011 }
3012
3013 static int
3014 sfc_eth_dev_create_repr_port(struct sfc_adapter *sa,
3015                              const struct rte_eth_devargs *eth_da,
3016                              efx_pcie_interface_t controller,
3017                              uint16_t port)
3018 {
3019         int first_error = 0;
3020         uint16_t i;
3021         int rc;
3022
3023         if (eth_da->type == RTE_ETH_REPRESENTOR_PF) {
3024                 return sfc_eth_dev_create_repr(sa, controller, port,
3025                                                EFX_PCI_VF_INVALID,
3026                                                eth_da->type);
3027         }
3028
3029         for (i = 0; i < eth_da->nb_representor_ports; i++) {
3030                 rc = sfc_eth_dev_create_repr(sa, controller, port,
3031                                              eth_da->representor_ports[i],
3032                                              eth_da->type);
3033                 if (rc != 0 && first_error == 0)
3034                         first_error = rc;
3035         }
3036
3037         return first_error;
3038 }
3039
3040 static int
3041 sfc_eth_dev_create_repr_controller(struct sfc_adapter *sa,
3042                                    const struct rte_eth_devargs *eth_da,
3043                                    efx_pcie_interface_t controller)
3044 {
3045         const efx_nic_cfg_t *encp;
3046         int first_error = 0;
3047         uint16_t default_port;
3048         uint16_t i;
3049         int rc;
3050
3051         if (eth_da->nb_ports == 0) {
3052                 encp = efx_nic_cfg_get(sa->nic);
3053                 default_port = encp->enc_intf == controller ? encp->enc_pf : 0;
3054                 return sfc_eth_dev_create_repr_port(sa, eth_da, controller,
3055                                                     default_port);
3056         }
3057
3058         for (i = 0; i < eth_da->nb_ports; i++) {
3059                 rc = sfc_eth_dev_create_repr_port(sa, eth_da, controller,
3060                                                   eth_da->ports[i]);
3061                 if (rc != 0 && first_error == 0)
3062                         first_error = rc;
3063         }
3064
3065         return first_error;
3066 }
3067
3068 static int
3069 sfc_eth_dev_create_representors(struct rte_eth_dev *dev,
3070                                 const struct rte_eth_devargs *eth_da)
3071 {
3072         efx_pcie_interface_t intf;
3073         const efx_nic_cfg_t *encp;
3074         struct sfc_adapter *sa;
3075         uint16_t switch_domain_id;
3076         uint16_t i;
3077         int rc;
3078
3079         sa = sfc_adapter_by_eth_dev(dev);
3080         switch_domain_id = sa->mae.switch_domain_id;
3081
3082         switch (eth_da->type) {
3083         case RTE_ETH_REPRESENTOR_NONE:
3084                 return 0;
3085         case RTE_ETH_REPRESENTOR_PF:
3086         case RTE_ETH_REPRESENTOR_VF:
3087                 break;
3088         case RTE_ETH_REPRESENTOR_SF:
3089                 sfc_err(sa, "SF representors are not supported");
3090                 return -ENOTSUP;
3091         default:
3092                 sfc_err(sa, "unknown representor type: %d",
3093                         eth_da->type);
3094                 return -ENOTSUP;
3095         }
3096
3097         if (!sa->switchdev) {
3098                 sfc_err(sa, "cannot create representors in non-switchdev mode");
3099                 return -EINVAL;
3100         }
3101
3102         if (!sfc_repr_available(sfc_sa2shared(sa))) {
3103                 sfc_err(sa, "cannot create representors: unsupported");
3104
3105                 return -ENOTSUP;
3106         }
3107
3108         /*
3109          * This is needed to construct the DPDK controller -> EFX interface
3110          * mapping.
3111          */
3112         sfc_adapter_lock(sa);
3113         rc = sfc_process_mport_journal(sa);
3114         sfc_adapter_unlock(sa);
3115         if (rc != 0) {
3116                 SFC_ASSERT(rc > 0);
3117                 return -rc;
3118         }
3119
3120         if (eth_da->nb_mh_controllers > 0) {
3121                 for (i = 0; i < eth_da->nb_mh_controllers; i++) {
3122                         rc = sfc_mae_switch_domain_get_intf(switch_domain_id,
3123                                                 eth_da->mh_controllers[i],
3124                                                 &intf);
3125                         if (rc != 0) {
3126                                 sfc_err(sa, "failed to get representor");
3127                                 continue;
3128                         }
3129                         sfc_eth_dev_create_repr_controller(sa, eth_da, intf);
3130                 }
3131         } else {
3132                 encp = efx_nic_cfg_get(sa->nic);
3133                 sfc_eth_dev_create_repr_controller(sa, eth_da, encp->enc_intf);
3134         }
3135
3136         return 0;
3137 }
3138
3139 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
3140         struct rte_pci_device *pci_dev)
3141 {
3142         struct sfc_ethdev_init_data init_data;
3143         struct rte_eth_devargs eth_da;
3144         struct rte_eth_dev *dev;
3145         bool dev_created;
3146         int rc;
3147
3148         if (pci_dev->device.devargs != NULL) {
3149                 rc = sfc_parse_rte_devargs(pci_dev->device.devargs->args,
3150                                            &eth_da);
3151                 if (rc != 0)
3152                         return rc;
3153         } else {
3154                 memset(&eth_da, 0, sizeof(eth_da));
3155         }
3156
3157         /* If no VF representors specified, check for PF ones */
3158         if (eth_da.nb_representor_ports > 0)
3159                 init_data.nb_representors = eth_da.nb_representor_ports;
3160         else
3161                 init_data.nb_representors = eth_da.nb_ports;
3162
3163         if (init_data.nb_representors > 0 &&
3164             rte_eal_process_type() != RTE_PROC_PRIMARY) {
3165                 SFC_GENERIC_LOG(ERR,
3166                         "Create representors from secondary process not supported, dev '%s'",
3167                         pci_dev->device.name);
3168                 return -ENOTSUP;
3169         }
3170
3171         /*
3172          * Driver supports RTE_PCI_DRV_PROBE_AGAIN. Hence create device only
3173          * if it does not already exist. Re-probing an existing device is
3174          * expected to allow additional representors to be configured.
3175          */
3176         rc = sfc_eth_dev_find_or_create(pci_dev, &init_data, &dev,
3177                                         &dev_created);
3178         if (rc != 0)
3179                 return rc;
3180
3181         rc = sfc_eth_dev_create_representors(dev, &eth_da);
3182         if (rc != 0) {
3183                 if (dev_created)
3184                         (void)rte_eth_dev_destroy(dev, sfc_eth_dev_uninit);
3185
3186                 return rc;
3187         }
3188
3189         return 0;
3190 }
3191
3192 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
3193 {
3194         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
3195 }
3196
3197 static struct rte_pci_driver sfc_efx_pmd = {
3198         .id_table = pci_id_sfc_efx_map,
3199         .drv_flags =
3200                 RTE_PCI_DRV_INTR_LSC |
3201                 RTE_PCI_DRV_NEED_MAPPING |
3202                 RTE_PCI_DRV_PROBE_AGAIN,
3203         .probe = sfc_eth_dev_pci_probe,
3204         .remove = sfc_eth_dev_pci_remove,
3205 };
3206
3207 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
3208 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
3209 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
3210 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
3211         SFC_KVARG_SWITCH_MODE "=" SFC_KVARG_VALUES_SWITCH_MODE " "
3212         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
3213         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
3214         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
3215         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
3216         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
3217         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
3218
3219 RTE_INIT(sfc_driver_register_logtype)
3220 {
3221         int ret;
3222
3223         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
3224                                                    RTE_LOG_NOTICE);
3225         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
3226 }