drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2016-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <rte_dev.h>
  11 #include <rte_ethdev_driver.h>
  12 #include <rte_ethdev_pci.h>
  13 #include <rte_pci.h>
  14 #include <rte_bus_pci.h>
  15 #include <rte_errno.h>
  16 #include <rte_string_fns.h>
  17
  18 #include "efx.h"
  19
  20 #include "sfc.h"
  21 #include "sfc_debug.h"
  22 #include "sfc_log.h"
  23 #include "sfc_kvargs.h"
  24 #include "sfc_ev.h"
  25 #include "sfc_rx.h"
  26 #include "sfc_tx.h"
  27 #include "sfc_flow.h"
  28 #include "sfc_dp.h"
  29 #include "sfc_dp_rx.h"
  30
  31 uint32_t sfc_logtype_driver;
  32
  33 static struct sfc_dp_list sfc_dp_head =
  34         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  35
  36 static int
  37 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  38 {
  39         struct sfc_adapter *sa = dev->data->dev_private;
  40         efx_nic_fw_info_t enfi;
  41         int ret;
  42         int rc;
  43
  44         /*
  45          * Return value of the callback is likely supposed to be
  46          * equal to or greater than 0, nevertheless, if an error
  47          * occurs, it will be desirable to pass it to the caller
  48          */
  49         if ((fw_version == NULL) || (fw_size == 0))
  50                 return -EINVAL;
  51
  52         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  53         if (rc != 0)
  54                 return -rc;
  55
  56         ret = snprintf(fw_version, fw_size,
  57                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  58                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  59                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  60         if (ret < 0)
  61                 return ret;
  62
  63         if (enfi.enfi_dpcpu_fw_ids_valid) {
  64                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  65                 int ret_extra;
  66
  67                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  68                                      fw_size - dpcpu_fw_ids_offset,
  69                                      " rx%" PRIx16 " tx%" PRIx16,
  70                                      enfi.enfi_rx_dpcpu_fw_id,
  71                                      enfi.enfi_tx_dpcpu_fw_id);
  72                 if (ret_extra < 0)
  73                         return ret_extra;
  74
  75                 ret += ret_extra;
  76         }
  77
  78         if (fw_size < (size_t)(++ret))
  79                 return ret;
  80         else
  81                 return 0;
  82 }
  83
  84 static void
  85 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  86 {
  87         struct sfc_adapter *sa = dev->data->dev_private;
  88         struct sfc_rss *rss = &sa->rss;
  89         uint64_t txq_offloads_def = 0;
  90
  91         sfc_log_init(sa, "entry");
  92
  93         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
  94
  95         /* Autonegotiation may be disabled */
  96         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
  97         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
  98                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
  99         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 100                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 101         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_25000FDX)
 102                 dev_info->speed_capa |= ETH_LINK_SPEED_25G;
 103         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 104                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 105         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_50000FDX)
 106                 dev_info->speed_capa |= ETH_LINK_SPEED_50G;
 107         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_100000FDX)
 108                 dev_info->speed_capa |= ETH_LINK_SPEED_100G;
 109
 110         dev_info->max_rx_queues = sa->rxq_max;
 111         dev_info->max_tx_queues = sa->txq_max;
 112
 113         /* By default packets are dropped if no descriptors are available */
 114         dev_info->default_rxconf.rx_drop_en = 1;
 115
 116         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 117
 118         /*
 119          * rx_offload_capa includes both device and queue offloads since
 120          * the latter may be requested on a per device basis which makes
 121          * sense when some offloads are needed to be set on all queues.
 122          */
 123         dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 124                                     dev_info->rx_queue_offload_capa;
 125
 126         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 127
 128         /*
 129          * tx_offload_capa includes both device and queue offloads since
 130          * the latter may be requested on a per device basis which makes
 131          * sense when some offloads are needed to be set on all queues.
 132          */
 133         dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 134                                     dev_info->tx_queue_offload_capa;
 135
 136         if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 137                 txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 138
 139         dev_info->default_txconf.offloads |= txq_offloads_def;
 140
 141         if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
 142                 uint64_t rte_hf = 0;
 143                 unsigned int i;
 144
 145                 for (i = 0; i < rss->hf_map_nb_entries; ++i)
 146                         rte_hf |= rss->hf_map[i].rte;
 147
 148                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 149                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 150                 dev_info->flow_type_rss_offloads = rte_hf;
 151         }
 152
 153         /* Initialize to hardware limits */
 154         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 155         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 156         /* The RXQ hardware requires that the descriptor count is a power
 157          * of 2, but rx_desc_lim cannot properly describe that constraint.
 158          */
 159         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 160
 161         /* Initialize to hardware limits */
 162         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 163         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 164         /*
 165          * The TXQ hardware requires that the descriptor count is a power
 166          * of 2, but tx_desc_lim cannot properly describe that constraint
 167          */
 168         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 169
 170         if (sa->dp_rx->get_dev_info != NULL)
 171                 sa->dp_rx->get_dev_info(dev_info);
 172         if (sa->dp_tx->get_dev_info != NULL)
 173                 sa->dp_tx->get_dev_info(dev_info);
 174
 175         dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
 176                              RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 177 }
 178
 179 static const uint32_t *
 180 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 181 {
 182         struct sfc_adapter *sa = dev->data->dev_private;
 183         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 184         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 185
 186         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 187 }
 188
 189 static int
 190 sfc_dev_configure(struct rte_eth_dev *dev)
 191 {
 192         struct rte_eth_dev_data *dev_data = dev->data;
 193         struct sfc_adapter *sa = dev_data->dev_private;
 194         int rc;
 195
 196         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 197                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 198
 199         sfc_adapter_lock(sa);
 200         switch (sa->state) {
 201         case SFC_ADAPTER_CONFIGURED:
 202                 /* FALLTHROUGH */
 203         case SFC_ADAPTER_INITIALIZED:
 204                 rc = sfc_configure(sa);
 205                 break;
 206         default:
 207                 sfc_err(sa, "unexpected adapter state %u to configure",
 208                         sa->state);
 209                 rc = EINVAL;
 210                 break;
 211         }
 212         sfc_adapter_unlock(sa);
 213
 214         sfc_log_init(sa, "done %d", rc);
 215         SFC_ASSERT(rc >= 0);
 216         return -rc;
 217 }
 218
 219 static int
 220 sfc_dev_start(struct rte_eth_dev *dev)
 221 {
 222         struct sfc_adapter *sa = dev->data->dev_private;
 223         int rc;
 224
 225         sfc_log_init(sa, "entry");
 226
 227         sfc_adapter_lock(sa);
 228         rc = sfc_start(sa);
 229         sfc_adapter_unlock(sa);
 230
 231         sfc_log_init(sa, "done %d", rc);
 232         SFC_ASSERT(rc >= 0);
 233         return -rc;
 234 }
 235
 236 static int
 237 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 238 {
 239         struct sfc_adapter *sa = dev->data->dev_private;
 240         struct rte_eth_link current_link;
 241         int ret;
 242
 243         sfc_log_init(sa, "entry");
 244
 245         if (sa->state != SFC_ADAPTER_STARTED) {
 246                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 247         } else if (wait_to_complete) {
 248                 efx_link_mode_t link_mode;
 249
 250                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 251                         link_mode = EFX_LINK_UNKNOWN;
 252                 sfc_port_link_mode_to_info(link_mode, &current_link);
 253
 254         } else {
 255                 sfc_ev_mgmt_qpoll(sa);
 256                 rte_eth_linkstatus_get(dev, &current_link);
 257         }
 258
 259         ret = rte_eth_linkstatus_set(dev, &current_link);
 260         if (ret == 0)
 261                 sfc_notice(sa, "Link status is %s",
 262                            current_link.link_status ? "UP" : "DOWN");
 263
 264         return ret;
 265 }
 266
 267 static void
 268 sfc_dev_stop(struct rte_eth_dev *dev)
 269 {
 270         struct sfc_adapter *sa = dev->data->dev_private;
 271
 272         sfc_log_init(sa, "entry");
 273
 274         sfc_adapter_lock(sa);
 275         sfc_stop(sa);
 276         sfc_adapter_unlock(sa);
 277
 278         sfc_log_init(sa, "done");
 279 }
 280
 281 static int
 282 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 283 {
 284         struct sfc_adapter *sa = dev->data->dev_private;
 285         int rc;
 286
 287         sfc_log_init(sa, "entry");
 288
 289         sfc_adapter_lock(sa);
 290         rc = sfc_start(sa);
 291         sfc_adapter_unlock(sa);
 292
 293         SFC_ASSERT(rc >= 0);
 294         return -rc;
 295 }
 296
 297 static int
 298 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 299 {
 300         struct sfc_adapter *sa = dev->data->dev_private;
 301
 302         sfc_log_init(sa, "entry");
 303
 304         sfc_adapter_lock(sa);
 305         sfc_stop(sa);
 306         sfc_adapter_unlock(sa);
 307
 308         return 0;
 309 }
 310
 311 static void
 312 sfc_dev_close(struct rte_eth_dev *dev)
 313 {
 314         struct sfc_adapter *sa = dev->data->dev_private;
 315
 316         sfc_log_init(sa, "entry");
 317
 318         sfc_adapter_lock(sa);
 319         switch (sa->state) {
 320         case SFC_ADAPTER_STARTED:
 321                 sfc_stop(sa);
 322                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 323                 /* FALLTHROUGH */
 324         case SFC_ADAPTER_CONFIGURED:
 325                 sfc_close(sa);
 326                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 327                 /* FALLTHROUGH */
 328         case SFC_ADAPTER_INITIALIZED:
 329                 break;
 330         default:
 331                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 332                 break;
 333         }
 334         sfc_adapter_unlock(sa);
 335
 336         sfc_log_init(sa, "done");
 337 }
 338
 339 static void
 340 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 341                    boolean_t enabled)
 342 {
 343         struct sfc_port *port;
 344         boolean_t *toggle;
 345         struct sfc_adapter *sa = dev->data->dev_private;
 346         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 347         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 348
 349         sfc_adapter_lock(sa);
 350
 351         port = &sa->port;
 352         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 353
 354         if (*toggle != enabled) {
 355                 *toggle = enabled;
 356
 357                 if (port->isolated) {
 358                         sfc_warn(sa, "isolated mode is active on the port");
 359                         sfc_warn(sa, "the change is to be applied on the next "
 360                                      "start provided that isolated mode is "
 361                                      "disabled prior the next start");
 362                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 363                            (sfc_set_rx_mode(sa) != 0)) {
 364                         *toggle = !(enabled);
 365                         sfc_warn(sa, "Failed to %s %s mode",
 366                                  ((enabled) ? "enable" : "disable"), desc);
 367                 }
 368         }
 369
 370         sfc_adapter_unlock(sa);
 371 }
 372
 373 static void
 374 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 375 {
 376         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 377 }
 378
 379 static void
 380 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 381 {
 382         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 383 }
 384
 385 static void
 386 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 387 {
 388         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 389 }
 390
 391 static void
 392 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 393 {
 394         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 395 }
 396
 397 static int
 398 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 399                    uint16_t nb_rx_desc, unsigned int socket_id,
 400                    const struct rte_eth_rxconf *rx_conf,
 401                    struct rte_mempool *mb_pool)
 402 {
 403         struct sfc_adapter *sa = dev->data->dev_private;
 404         int rc;
 405
 406         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 407                      rx_queue_id, nb_rx_desc, socket_id);
 408
 409         sfc_adapter_lock(sa);
 410
 411         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 412                           rx_conf, mb_pool);
 413         if (rc != 0)
 414                 goto fail_rx_qinit;
 415
 416         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 417
 418         sfc_adapter_unlock(sa);
 419
 420         return 0;
 421
 422 fail_rx_qinit:
 423         sfc_adapter_unlock(sa);
 424         SFC_ASSERT(rc > 0);
 425         return -rc;
 426 }
 427
 428 static void
 429 sfc_rx_queue_release(void *queue)
 430 {
 431         struct sfc_dp_rxq *dp_rxq = queue;
 432         struct sfc_rxq *rxq;
 433         struct sfc_adapter *sa;
 434         unsigned int sw_index;
 435
 436         if (dp_rxq == NULL)
 437                 return;
 438
 439         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 440         sa = rxq->evq->sa;
 441         sfc_adapter_lock(sa);
 442
 443         sw_index = sfc_rxq_sw_index(rxq);
 444
 445         sfc_log_init(sa, "RxQ=%u", sw_index);
 446
 447         sfc_rx_qfini(sa, sw_index);
 448
 449         sfc_adapter_unlock(sa);
 450 }
 451
 452 static int
 453 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 454                    uint16_t nb_tx_desc, unsigned int socket_id,
 455                    const struct rte_eth_txconf *tx_conf)
 456 {
 457         struct sfc_adapter *sa = dev->data->dev_private;
 458         int rc;
 459
 460         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 461                      tx_queue_id, nb_tx_desc, socket_id);
 462
 463         sfc_adapter_lock(sa);
 464
 465         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 466         if (rc != 0)
 467                 goto fail_tx_qinit;
 468
 469         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 470
 471         sfc_adapter_unlock(sa);
 472         return 0;
 473
 474 fail_tx_qinit:
 475         sfc_adapter_unlock(sa);
 476         SFC_ASSERT(rc > 0);
 477         return -rc;
 478 }
 479
 480 static void
 481 sfc_tx_queue_release(void *queue)
 482 {
 483         struct sfc_dp_txq *dp_txq = queue;
 484         struct sfc_txq *txq;
 485         unsigned int sw_index;
 486         struct sfc_adapter *sa;
 487
 488         if (dp_txq == NULL)
 489                 return;
 490
 491         txq = sfc_txq_by_dp_txq(dp_txq);
 492         sw_index = sfc_txq_sw_index(txq);
 493
 494         SFC_ASSERT(txq->evq != NULL);
 495         sa = txq->evq->sa;
 496
 497         sfc_log_init(sa, "TxQ = %u", sw_index);
 498
 499         sfc_adapter_lock(sa);
 500
 501         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 502         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 503
 504         sfc_tx_qfini(sa, sw_index);
 505
 506         sfc_adapter_unlock(sa);
 507 }
 508
 509 static int
 510 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 511 {
 512         struct sfc_adapter *sa = dev->data->dev_private;
 513         struct sfc_port *port = &sa->port;
 514         uint64_t *mac_stats;
 515         int ret;
 516
 517         rte_spinlock_lock(&port->mac_stats_lock);
 518
 519         ret = sfc_port_update_mac_stats(sa);
 520         if (ret != 0)
 521                 goto unlock;
 522
 523         mac_stats = port->mac_stats_buf;
 524
 525         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 526                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 527                 stats->ipackets =
 528                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 529                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 530                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 531                 stats->opackets =
 532                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 533                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 534                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 535                 stats->ibytes =
 536                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 537                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 538                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 539                 stats->obytes =
 540                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 541                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 542                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 543                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 544                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 545                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 546         } else {
 547                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 548                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 549                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 550                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 551                 /*
 552                  * Take into account stats which are whenever supported
 553                  * on EF10. If some stat is not supported by current
 554                  * firmware variant or HW revision, it is guaranteed
 555                  * to be zero in mac_stats.
 556                  */
 557                 stats->imissed =
 558                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 559                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 560                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 561                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 562                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 563                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 564                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 565                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 566                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 567                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 568                 stats->ierrors =
 569                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 570                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 571                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 572                 /* no oerrors counters supported on EF10 */
 573         }
 574
 575 unlock:
 576         rte_spinlock_unlock(&port->mac_stats_lock);
 577         SFC_ASSERT(ret >= 0);
 578         return -ret;
 579 }
 580
 581 static void
 582 sfc_stats_reset(struct rte_eth_dev *dev)
 583 {
 584         struct sfc_adapter *sa = dev->data->dev_private;
 585         struct sfc_port *port = &sa->port;
 586         int rc;
 587
 588         if (sa->state != SFC_ADAPTER_STARTED) {
 589                 /*
 590                  * The operation cannot be done if port is not started; it
 591                  * will be scheduled to be done during the next port start
 592                  */
 593                 port->mac_stats_reset_pending = B_TRUE;
 594                 return;
 595         }
 596
 597         rc = sfc_port_reset_mac_stats(sa);
 598         if (rc != 0)
 599                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 600 }
 601
 602 static int
 603 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 604                unsigned int xstats_count)
 605 {
 606         struct sfc_adapter *sa = dev->data->dev_private;
 607         struct sfc_port *port = &sa->port;
 608         uint64_t *mac_stats;
 609         int rc;
 610         unsigned int i;
 611         int nstats = 0;
 612
 613         rte_spinlock_lock(&port->mac_stats_lock);
 614
 615         rc = sfc_port_update_mac_stats(sa);
 616         if (rc != 0) {
 617                 SFC_ASSERT(rc > 0);
 618                 nstats = -rc;
 619                 goto unlock;
 620         }
 621
 622         mac_stats = port->mac_stats_buf;
 623
 624         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 625                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 626                         if (xstats != NULL && nstats < (int)xstats_count) {
 627                                 xstats[nstats].id = nstats;
 628                                 xstats[nstats].value = mac_stats[i];
 629                         }
 630                         nstats++;
 631                 }
 632         }
 633
 634 unlock:
 635         rte_spinlock_unlock(&port->mac_stats_lock);
 636
 637         return nstats;
 638 }
 639
 640 static int
 641 sfc_xstats_get_names(struct rte_eth_dev *dev,
 642                      struct rte_eth_xstat_name *xstats_names,
 643                      unsigned int xstats_count)
 644 {
 645         struct sfc_adapter *sa = dev->data->dev_private;
 646         struct sfc_port *port = &sa->port;
 647         unsigned int i;
 648         unsigned int nstats = 0;
 649
 650         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 651                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 652                         if (xstats_names != NULL && nstats < xstats_count)
 653                                 strlcpy(xstats_names[nstats].name,
 654                                         efx_mac_stat_name(sa->nic, i),
 655                                         sizeof(xstats_names[0].name));
 656                         nstats++;
 657                 }
 658         }
 659
 660         return nstats;
 661 }
 662
 663 static int
 664 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 665                      uint64_t *values, unsigned int n)
 666 {
 667         struct sfc_adapter *sa = dev->data->dev_private;
 668         struct sfc_port *port = &sa->port;
 669         uint64_t *mac_stats;
 670         unsigned int nb_supported = 0;
 671         unsigned int nb_written = 0;
 672         unsigned int i;
 673         int ret;
 674         int rc;
 675
 676         if (unlikely(values == NULL) ||
 677             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 678                 return port->mac_stats_nb_supported;
 679
 680         rte_spinlock_lock(&port->mac_stats_lock);
 681
 682         rc = sfc_port_update_mac_stats(sa);
 683         if (rc != 0) {
 684                 SFC_ASSERT(rc > 0);
 685                 ret = -rc;
 686                 goto unlock;
 687         }
 688
 689         mac_stats = port->mac_stats_buf;
 690
 691         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 692                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 693                         continue;
 694
 695                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 696                         values[nb_written++] = mac_stats[i];
 697
 698                 ++nb_supported;
 699         }
 700
 701         ret = nb_written;
 702
 703 unlock:
 704         rte_spinlock_unlock(&port->mac_stats_lock);
 705
 706         return ret;
 707 }
 708
 709 static int
 710 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 711                            struct rte_eth_xstat_name *xstats_names,
 712                            const uint64_t *ids, unsigned int size)
 713 {
 714         struct sfc_adapter *sa = dev->data->dev_private;
 715         struct sfc_port *port = &sa->port;
 716         unsigned int nb_supported = 0;
 717         unsigned int nb_written = 0;
 718         unsigned int i;
 719
 720         if (unlikely(xstats_names == NULL) ||
 721             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 722                 return port->mac_stats_nb_supported;
 723
 724         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 725                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 726                         continue;
 727
 728                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 729                         char *name = xstats_names[nb_written++].name;
 730
 731                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 732                                 sizeof(xstats_names[0].name));
 733                 }
 734
 735                 ++nb_supported;
 736         }
 737
 738         return nb_written;
 739 }
 740
 741 static int
 742 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 743 {
 744         struct sfc_adapter *sa = dev->data->dev_private;
 745         unsigned int wanted_fc, link_fc;
 746
 747         memset(fc_conf, 0, sizeof(*fc_conf));
 748
 749         sfc_adapter_lock(sa);
 750
 751         if (sa->state == SFC_ADAPTER_STARTED)
 752                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 753         else
 754                 link_fc = sa->port.flow_ctrl;
 755
 756         switch (link_fc) {
 757         case 0:
 758                 fc_conf->mode = RTE_FC_NONE;
 759                 break;
 760         case EFX_FCNTL_RESPOND:
 761                 fc_conf->mode = RTE_FC_RX_PAUSE;
 762                 break;
 763         case EFX_FCNTL_GENERATE:
 764                 fc_conf->mode = RTE_FC_TX_PAUSE;
 765                 break;
 766         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 767                 fc_conf->mode = RTE_FC_FULL;
 768                 break;
 769         default:
 770                 sfc_err(sa, "%s: unexpected flow control value %#x",
 771                         __func__, link_fc);
 772         }
 773
 774         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 775
 776         sfc_adapter_unlock(sa);
 777
 778         return 0;
 779 }
 780
 781 static int
 782 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 783 {
 784         struct sfc_adapter *sa = dev->data->dev_private;
 785         struct sfc_port *port = &sa->port;
 786         unsigned int fcntl;
 787         int rc;
 788
 789         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 790             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 791             fc_conf->mac_ctrl_frame_fwd != 0) {
 792                 sfc_err(sa, "unsupported flow control settings specified");
 793                 rc = EINVAL;
 794                 goto fail_inval;
 795         }
 796
 797         switch (fc_conf->mode) {
 798         case RTE_FC_NONE:
 799                 fcntl = 0;
 800                 break;
 801         case RTE_FC_RX_PAUSE:
 802                 fcntl = EFX_FCNTL_RESPOND;
 803                 break;
 804         case RTE_FC_TX_PAUSE:
 805                 fcntl = EFX_FCNTL_GENERATE;
 806                 break;
 807         case RTE_FC_FULL:
 808                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 809                 break;
 810         default:
 811                 rc = EINVAL;
 812                 goto fail_inval;
 813         }
 814
 815         sfc_adapter_lock(sa);
 816
 817         if (sa->state == SFC_ADAPTER_STARTED) {
 818                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 819                 if (rc != 0)
 820                         goto fail_mac_fcntl_set;
 821         }
 822
 823         port->flow_ctrl = fcntl;
 824         port->flow_ctrl_autoneg = fc_conf->autoneg;
 825
 826         sfc_adapter_unlock(sa);
 827
 828         return 0;
 829
 830 fail_mac_fcntl_set:
 831         sfc_adapter_unlock(sa);
 832 fail_inval:
 833         SFC_ASSERT(rc > 0);
 834         return -rc;
 835 }
 836
 837 static int
 838 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 839 {
 840         struct sfc_adapter *sa = dev->data->dev_private;
 841         size_t pdu = EFX_MAC_PDU(mtu);
 842         size_t old_pdu;
 843         int rc;
 844
 845         sfc_log_init(sa, "mtu=%u", mtu);
 846
 847         rc = EINVAL;
 848         if (pdu < EFX_MAC_PDU_MIN) {
 849                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 850                         (unsigned int)mtu, (unsigned int)pdu,
 851                         EFX_MAC_PDU_MIN);
 852                 goto fail_inval;
 853         }
 854         if (pdu > EFX_MAC_PDU_MAX) {
 855                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 856                         (unsigned int)mtu, (unsigned int)pdu,
 857                         EFX_MAC_PDU_MAX);
 858                 goto fail_inval;
 859         }
 860
 861         sfc_adapter_lock(sa);
 862
 863         if (pdu != sa->port.pdu) {
 864                 if (sa->state == SFC_ADAPTER_STARTED) {
 865                         sfc_stop(sa);
 866
 867                         old_pdu = sa->port.pdu;
 868                         sa->port.pdu = pdu;
 869                         rc = sfc_start(sa);
 870                         if (rc != 0)
 871                                 goto fail_start;
 872                 } else {
 873                         sa->port.pdu = pdu;
 874                 }
 875         }
 876
 877         /*
 878          * The driver does not use it, but other PMDs update jumbo frame
 879          * flag and max_rx_pkt_len when MTU is set.
 880          */
 881         if (mtu > ETHER_MAX_LEN) {
 882                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 883                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 884         }
 885
 886         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 887
 888         sfc_adapter_unlock(sa);
 889
 890         sfc_log_init(sa, "done");
 891         return 0;
 892
 893 fail_start:
 894         sa->port.pdu = old_pdu;
 895         if (sfc_start(sa) != 0)
 896                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 897                         "PDU max size - port is stopped",
 898                         (unsigned int)pdu, (unsigned int)old_pdu);
 899         sfc_adapter_unlock(sa);
 900
 901 fail_inval:
 902         sfc_log_init(sa, "failed %d", rc);
 903         SFC_ASSERT(rc > 0);
 904         return -rc;
 905 }
 906 static int
 907 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 908 {
 909         struct sfc_adapter *sa = dev->data->dev_private;
 910         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 911         struct sfc_port *port = &sa->port;
 912         struct ether_addr *old_addr = &dev->data->mac_addrs[0];
 913         int rc = 0;
 914
 915         sfc_adapter_lock(sa);
 916
 917         /*
 918          * Copy the address to the device private data so that
 919          * it could be recalled in the case of adapter restart.
 920          */
 921         ether_addr_copy(mac_addr, &port->default_mac_addr);
 922
 923         /*
 924          * Neither of the two following checks can return
 925          * an error. The new MAC address is preserved in
 926          * the device private data and can be activated
 927          * on the next port start if the user prevents
 928          * isolated mode from being enabled.
 929          */
 930         if (port->isolated) {
 931                 sfc_warn(sa, "isolated mode is active on the port");
 932                 sfc_warn(sa, "will not set MAC address");
 933                 goto unlock;
 934         }
 935
 936         if (sa->state != SFC_ADAPTER_STARTED) {
 937                 sfc_notice(sa, "the port is not started");
 938                 sfc_notice(sa, "the new MAC address will be set on port start");
 939
 940                 goto unlock;
 941         }
 942
 943         if (encp->enc_allow_set_mac_with_installed_filters) {
 944                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 945                 if (rc != 0) {
 946                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 947                         goto unlock;
 948                 }
 949
 950                 /*
 951                  * Changing the MAC address by means of MCDI request
 952                  * has no effect on received traffic, therefore
 953                  * we also need to update unicast filters
 954                  */
 955                 rc = sfc_set_rx_mode(sa);
 956                 if (rc != 0) {
 957                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 958                         /* Rollback the old address */
 959                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
 960                         (void)sfc_set_rx_mode(sa);
 961                 }
 962         } else {
 963                 sfc_warn(sa, "cannot set MAC address with filters installed");
 964                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 965                 sfc_warn(sa, "(some traffic may be dropped)");
 966
 967                 /*
 968                  * Since setting MAC address with filters installed is not
 969                  * allowed on the adapter, the new MAC address will be set
 970                  * by means of adapter restart. sfc_start() shall retrieve
 971                  * the new address from the device private data and set it.
 972                  */
 973                 sfc_stop(sa);
 974                 rc = sfc_start(sa);
 975                 if (rc != 0)
 976                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 977         }
 978
 979 unlock:
 980         if (rc != 0)
 981                 ether_addr_copy(old_addr, &port->default_mac_addr);
 982
 983         sfc_adapter_unlock(sa);
 984
 985         SFC_ASSERT(rc >= 0);
 986         return -rc;
 987 }
 988
 989
 990 static int
 991 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 992                      uint32_t nb_mc_addr)
 993 {
 994         struct sfc_adapter *sa = dev->data->dev_private;
 995         struct sfc_port *port = &sa->port;
 996         uint8_t *mc_addrs = port->mcast_addrs;
 997         int rc;
 998         unsigned int i;
 999
1000         if (port->isolated) {
1001                 sfc_err(sa, "isolated mode is active on the port");
1002                 sfc_err(sa, "will not set multicast address list");
1003                 return -ENOTSUP;
1004         }
1005
1006         if (mc_addrs == NULL)
1007                 return -ENOBUFS;
1008
1009         if (nb_mc_addr > port->max_mcast_addrs) {
1010                 sfc_err(sa, "too many multicast addresses: %u > %u",
1011                          nb_mc_addr, port->max_mcast_addrs);
1012                 return -EINVAL;
1013         }
1014
1015         for (i = 0; i < nb_mc_addr; ++i) {
1016                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1017                                  EFX_MAC_ADDR_LEN);
1018                 mc_addrs += EFX_MAC_ADDR_LEN;
1019         }
1020
1021         port->nb_mcast_addrs = nb_mc_addr;
1022
1023         if (sa->state != SFC_ADAPTER_STARTED)
1024                 return 0;
1025
1026         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1027                                         port->nb_mcast_addrs);
1028         if (rc != 0)
1029                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1030
1031         SFC_ASSERT(rc >= 0);
1032         return -rc;
1033 }
1034
1035 /*
1036  * The function is used by the secondary process as well. It must not
1037  * use any process-local pointers from the adapter data.
1038  */
1039 static void
1040 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1041                       struct rte_eth_rxq_info *qinfo)
1042 {
1043         struct sfc_adapter *sa = dev->data->dev_private;
1044         struct sfc_rxq_info *rxq_info;
1045         struct sfc_rxq *rxq;
1046
1047         sfc_adapter_lock(sa);
1048
1049         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1050
1051         rxq_info = &sa->rxq_info[rx_queue_id];
1052         rxq = rxq_info->rxq;
1053         SFC_ASSERT(rxq != NULL);
1054
1055         qinfo->mp = rxq->refill_mb_pool;
1056         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1057         qinfo->conf.rx_drop_en = 1;
1058         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1059         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1060         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1061                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1062                 qinfo->scattered_rx = 1;
1063         }
1064         qinfo->nb_desc = rxq_info->entries;
1065
1066         sfc_adapter_unlock(sa);
1067 }
1068
1069 /*
1070  * The function is used by the secondary process as well. It must not
1071  * use any process-local pointers from the adapter data.
1072  */
1073 static void
1074 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1075                       struct rte_eth_txq_info *qinfo)
1076 {
1077         struct sfc_adapter *sa = dev->data->dev_private;
1078         struct sfc_txq_info *txq_info;
1079
1080         sfc_adapter_lock(sa);
1081
1082         SFC_ASSERT(tx_queue_id < sa->txq_count);
1083
1084         txq_info = &sa->txq_info[tx_queue_id];
1085         SFC_ASSERT(txq_info->txq != NULL);
1086
1087         memset(qinfo, 0, sizeof(*qinfo));
1088
1089         qinfo->conf.offloads = txq_info->txq->offloads;
1090         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1091         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1092         qinfo->nb_desc = txq_info->entries;
1093
1094         sfc_adapter_unlock(sa);
1095 }
1096
1097 static uint32_t
1098 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1099 {
1100         struct sfc_adapter *sa = dev->data->dev_private;
1101
1102         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1103
1104         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1105 }
1106
1107 static int
1108 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1109 {
1110         struct sfc_dp_rxq *dp_rxq = queue;
1111
1112         return sfc_rx_qdesc_done(dp_rxq, offset);
1113 }
1114
1115 static int
1116 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1117 {
1118         struct sfc_dp_rxq *dp_rxq = queue;
1119         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1120
1121         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1122 }
1123
1124 static int
1125 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1126 {
1127         struct sfc_dp_txq *dp_txq = queue;
1128         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1129
1130         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1131 }
1132
1133 static int
1134 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1135 {
1136         struct sfc_adapter *sa = dev->data->dev_private;
1137         int rc;
1138
1139         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1140
1141         sfc_adapter_lock(sa);
1142
1143         rc = EINVAL;
1144         if (sa->state != SFC_ADAPTER_STARTED)
1145                 goto fail_not_started;
1146
1147         if (sa->rxq_info[rx_queue_id].rxq == NULL)
1148                 goto fail_not_setup;
1149
1150         rc = sfc_rx_qstart(sa, rx_queue_id);
1151         if (rc != 0)
1152                 goto fail_rx_qstart;
1153
1154         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1155
1156         sfc_adapter_unlock(sa);
1157
1158         return 0;
1159
1160 fail_rx_qstart:
1161 fail_not_setup:
1162 fail_not_started:
1163         sfc_adapter_unlock(sa);
1164         SFC_ASSERT(rc > 0);
1165         return -rc;
1166 }
1167
1168 static int
1169 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1170 {
1171         struct sfc_adapter *sa = dev->data->dev_private;
1172
1173         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1174
1175         sfc_adapter_lock(sa);
1176         sfc_rx_qstop(sa, rx_queue_id);
1177
1178         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1179
1180         sfc_adapter_unlock(sa);
1181
1182         return 0;
1183 }
1184
1185 static int
1186 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1187 {
1188         struct sfc_adapter *sa = dev->data->dev_private;
1189         int rc;
1190
1191         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1192
1193         sfc_adapter_lock(sa);
1194
1195         rc = EINVAL;
1196         if (sa->state != SFC_ADAPTER_STARTED)
1197                 goto fail_not_started;
1198
1199         if (sa->txq_info[tx_queue_id].txq == NULL)
1200                 goto fail_not_setup;
1201
1202         rc = sfc_tx_qstart(sa, tx_queue_id);
1203         if (rc != 0)
1204                 goto fail_tx_qstart;
1205
1206         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1207
1208         sfc_adapter_unlock(sa);
1209         return 0;
1210
1211 fail_tx_qstart:
1212
1213 fail_not_setup:
1214 fail_not_started:
1215         sfc_adapter_unlock(sa);
1216         SFC_ASSERT(rc > 0);
1217         return -rc;
1218 }
1219
1220 static int
1221 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1222 {
1223         struct sfc_adapter *sa = dev->data->dev_private;
1224
1225         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1226
1227         sfc_adapter_lock(sa);
1228
1229         sfc_tx_qstop(sa, tx_queue_id);
1230
1231         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1232
1233         sfc_adapter_unlock(sa);
1234         return 0;
1235 }
1236
1237 static efx_tunnel_protocol_t
1238 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1239 {
1240         switch (rte_type) {
1241         case RTE_TUNNEL_TYPE_VXLAN:
1242                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1243         case RTE_TUNNEL_TYPE_GENEVE:
1244                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1245         default:
1246                 return EFX_TUNNEL_NPROTOS;
1247         }
1248 }
1249
1250 enum sfc_udp_tunnel_op_e {
1251         SFC_UDP_TUNNEL_ADD_PORT,
1252         SFC_UDP_TUNNEL_DEL_PORT,
1253 };
1254
1255 static int
1256 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1257                       struct rte_eth_udp_tunnel *tunnel_udp,
1258                       enum sfc_udp_tunnel_op_e op)
1259 {
1260         struct sfc_adapter *sa = dev->data->dev_private;
1261         efx_tunnel_protocol_t tunnel_proto;
1262         int rc;
1263
1264         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1265                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1266                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1267                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1268
1269         tunnel_proto =
1270                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1271         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1272                 rc = ENOTSUP;
1273                 goto fail_bad_proto;
1274         }
1275
1276         sfc_adapter_lock(sa);
1277
1278         switch (op) {
1279         case SFC_UDP_TUNNEL_ADD_PORT:
1280                 rc = efx_tunnel_config_udp_add(sa->nic,
1281                                                tunnel_udp->udp_port,
1282                                                tunnel_proto);
1283                 break;
1284         case SFC_UDP_TUNNEL_DEL_PORT:
1285                 rc = efx_tunnel_config_udp_remove(sa->nic,
1286                                                   tunnel_udp->udp_port,
1287                                                   tunnel_proto);
1288                 break;
1289         default:
1290                 rc = EINVAL;
1291                 goto fail_bad_op;
1292         }
1293
1294         if (rc != 0)
1295                 goto fail_op;
1296
1297         if (sa->state == SFC_ADAPTER_STARTED) {
1298                 rc = efx_tunnel_reconfigure(sa->nic);
1299                 if (rc == EAGAIN) {
1300                         /*
1301                          * Configuration is accepted by FW and MC reboot
1302                          * is initiated to apply the changes. MC reboot
1303                          * will be handled in a usual way (MC reboot
1304                          * event on management event queue and adapter
1305                          * restart).
1306                          */
1307                         rc = 0;
1308                 } else if (rc != 0) {
1309                         goto fail_reconfigure;
1310                 }
1311         }
1312
1313         sfc_adapter_unlock(sa);
1314         return 0;
1315
1316 fail_reconfigure:
1317         /* Remove/restore entry since the change makes the trouble */
1318         switch (op) {
1319         case SFC_UDP_TUNNEL_ADD_PORT:
1320                 (void)efx_tunnel_config_udp_remove(sa->nic,
1321                                                    tunnel_udp->udp_port,
1322                                                    tunnel_proto);
1323                 break;
1324         case SFC_UDP_TUNNEL_DEL_PORT:
1325                 (void)efx_tunnel_config_udp_add(sa->nic,
1326                                                 tunnel_udp->udp_port,
1327                                                 tunnel_proto);
1328                 break;
1329         }
1330
1331 fail_op:
1332 fail_bad_op:
1333         sfc_adapter_unlock(sa);
1334
1335 fail_bad_proto:
1336         SFC_ASSERT(rc > 0);
1337         return -rc;
1338 }
1339
1340 static int
1341 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1342                             struct rte_eth_udp_tunnel *tunnel_udp)
1343 {
1344         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1345 }
1346
1347 static int
1348 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1349                             struct rte_eth_udp_tunnel *tunnel_udp)
1350 {
1351         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1352 }
1353
1354 static int
1355 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1356                           struct rte_eth_rss_conf *rss_conf)
1357 {
1358         struct sfc_adapter *sa = dev->data->dev_private;
1359         struct sfc_rss *rss = &sa->rss;
1360         struct sfc_port *port = &sa->port;
1361
1362         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || port->isolated)
1363                 return -ENOTSUP;
1364
1365         if (rss->channels == 0)
1366                 return -EINVAL;
1367
1368         sfc_adapter_lock(sa);
1369
1370         /*
1371          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1372          * hence, conversion is done here to derive a correct set of ETH_RSS
1373          * flags which corresponds to the active EFX configuration stored
1374          * locally in 'sfc_adapter' and kept up-to-date
1375          */
1376         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(sa, rss->hash_types);
1377         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1378         if (rss_conf->rss_key != NULL)
1379                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1380
1381         sfc_adapter_unlock(sa);
1382
1383         return 0;
1384 }
1385
1386 static int
1387 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1388                         struct rte_eth_rss_conf *rss_conf)
1389 {
1390         struct sfc_adapter *sa = dev->data->dev_private;
1391         struct sfc_rss *rss = &sa->rss;
1392         struct sfc_port *port = &sa->port;
1393         unsigned int efx_hash_types;
1394         int rc = 0;
1395
1396         if (port->isolated)
1397                 return -ENOTSUP;
1398
1399         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1400                 sfc_err(sa, "RSS is not available");
1401                 return -ENOTSUP;
1402         }
1403
1404         if (rss->channels == 0) {
1405                 sfc_err(sa, "RSS is not configured");
1406                 return -EINVAL;
1407         }
1408
1409         if ((rss_conf->rss_key != NULL) &&
1410             (rss_conf->rss_key_len != sizeof(rss->key))) {
1411                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1412                         sizeof(rss->key));
1413                 return -EINVAL;
1414         }
1415
1416         sfc_adapter_lock(sa);
1417
1418         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1419         if (rc != 0)
1420                 goto fail_rx_hf_rte_to_efx;
1421
1422         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1423                                    rss->hash_alg, efx_hash_types, B_TRUE);
1424         if (rc != 0)
1425                 goto fail_scale_mode_set;
1426
1427         if (rss_conf->rss_key != NULL) {
1428                 if (sa->state == SFC_ADAPTER_STARTED) {
1429                         rc = efx_rx_scale_key_set(sa->nic,
1430                                                   EFX_RSS_CONTEXT_DEFAULT,
1431                                                   rss_conf->rss_key,
1432                                                   sizeof(rss->key));
1433                         if (rc != 0)
1434                                 goto fail_scale_key_set;
1435                 }
1436
1437                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1438         }
1439
1440         rss->hash_types = efx_hash_types;
1441
1442         sfc_adapter_unlock(sa);
1443
1444         return 0;
1445
1446 fail_scale_key_set:
1447         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1448                                   EFX_RX_HASHALG_TOEPLITZ,
1449                                   rss->hash_types, B_TRUE) != 0)
1450                 sfc_err(sa, "failed to restore RSS mode");
1451
1452 fail_scale_mode_set:
1453 fail_rx_hf_rte_to_efx:
1454         sfc_adapter_unlock(sa);
1455         return -rc;
1456 }
1457
1458 static int
1459 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1460                        struct rte_eth_rss_reta_entry64 *reta_conf,
1461                        uint16_t reta_size)
1462 {
1463         struct sfc_adapter *sa = dev->data->dev_private;
1464         struct sfc_rss *rss = &sa->rss;
1465         struct sfc_port *port = &sa->port;
1466         int entry;
1467
1468         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || port->isolated)
1469                 return -ENOTSUP;
1470
1471         if (rss->channels == 0)
1472                 return -EINVAL;
1473
1474         if (reta_size != EFX_RSS_TBL_SIZE)
1475                 return -EINVAL;
1476
1477         sfc_adapter_lock(sa);
1478
1479         for (entry = 0; entry < reta_size; entry++) {
1480                 int grp = entry / RTE_RETA_GROUP_SIZE;
1481                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1482
1483                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1484                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1485         }
1486
1487         sfc_adapter_unlock(sa);
1488
1489         return 0;
1490 }
1491
1492 static int
1493 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1494                         struct rte_eth_rss_reta_entry64 *reta_conf,
1495                         uint16_t reta_size)
1496 {
1497         struct sfc_adapter *sa = dev->data->dev_private;
1498         struct sfc_rss *rss = &sa->rss;
1499         struct sfc_port *port = &sa->port;
1500         unsigned int *rss_tbl_new;
1501         uint16_t entry;
1502         int rc = 0;
1503
1504
1505         if (port->isolated)
1506                 return -ENOTSUP;
1507
1508         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1509                 sfc_err(sa, "RSS is not available");
1510                 return -ENOTSUP;
1511         }
1512
1513         if (rss->channels == 0) {
1514                 sfc_err(sa, "RSS is not configured");
1515                 return -EINVAL;
1516         }
1517
1518         if (reta_size != EFX_RSS_TBL_SIZE) {
1519                 sfc_err(sa, "RETA size is wrong (should be %u)",
1520                         EFX_RSS_TBL_SIZE);
1521                 return -EINVAL;
1522         }
1523
1524         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1525         if (rss_tbl_new == NULL)
1526                 return -ENOMEM;
1527
1528         sfc_adapter_lock(sa);
1529
1530         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1531
1532         for (entry = 0; entry < reta_size; entry++) {
1533                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1534                 struct rte_eth_rss_reta_entry64 *grp;
1535
1536                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1537
1538                 if (grp->mask & (1ull << grp_idx)) {
1539                         if (grp->reta[grp_idx] >= rss->channels) {
1540                                 rc = EINVAL;
1541                                 goto bad_reta_entry;
1542                         }
1543                         rss_tbl_new[entry] = grp->reta[grp_idx];
1544                 }
1545         }
1546
1547         if (sa->state == SFC_ADAPTER_STARTED) {
1548                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1549                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1550                 if (rc != 0)
1551                         goto fail_scale_tbl_set;
1552         }
1553
1554         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1555
1556 fail_scale_tbl_set:
1557 bad_reta_entry:
1558         sfc_adapter_unlock(sa);
1559
1560         rte_free(rss_tbl_new);
1561
1562         SFC_ASSERT(rc >= 0);
1563         return -rc;
1564 }
1565
1566 static int
1567 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1568                     enum rte_filter_op filter_op,
1569                     void *arg)
1570 {
1571         struct sfc_adapter *sa = dev->data->dev_private;
1572         int rc = ENOTSUP;
1573
1574         sfc_log_init(sa, "entry");
1575
1576         switch (filter_type) {
1577         case RTE_ETH_FILTER_NONE:
1578                 sfc_err(sa, "Global filters configuration not supported");
1579                 break;
1580         case RTE_ETH_FILTER_MACVLAN:
1581                 sfc_err(sa, "MACVLAN filters not supported");
1582                 break;
1583         case RTE_ETH_FILTER_ETHERTYPE:
1584                 sfc_err(sa, "EtherType filters not supported");
1585                 break;
1586         case RTE_ETH_FILTER_FLEXIBLE:
1587                 sfc_err(sa, "Flexible filters not supported");
1588                 break;
1589         case RTE_ETH_FILTER_SYN:
1590                 sfc_err(sa, "SYN filters not supported");
1591                 break;
1592         case RTE_ETH_FILTER_NTUPLE:
1593                 sfc_err(sa, "NTUPLE filters not supported");
1594                 break;
1595         case RTE_ETH_FILTER_TUNNEL:
1596                 sfc_err(sa, "Tunnel filters not supported");
1597                 break;
1598         case RTE_ETH_FILTER_FDIR:
1599                 sfc_err(sa, "Flow Director filters not supported");
1600                 break;
1601         case RTE_ETH_FILTER_HASH:
1602                 sfc_err(sa, "Hash filters not supported");
1603                 break;
1604         case RTE_ETH_FILTER_GENERIC:
1605                 if (filter_op != RTE_ETH_FILTER_GET) {
1606                         rc = EINVAL;
1607                 } else {
1608                         *(const void **)arg = &sfc_flow_ops;
1609                         rc = 0;
1610                 }
1611                 break;
1612         default:
1613                 sfc_err(sa, "Unknown filter type %u", filter_type);
1614                 break;
1615         }
1616
1617         sfc_log_init(sa, "exit: %d", -rc);
1618         SFC_ASSERT(rc >= 0);
1619         return -rc;
1620 }
1621
1622 static int
1623 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1624 {
1625         struct sfc_adapter *sa = dev->data->dev_private;
1626
1627         /*
1628          * If Rx datapath does not provide callback to check mempool,
1629          * all pools are supported.
1630          */
1631         if (sa->dp_rx->pool_ops_supported == NULL)
1632                 return 1;
1633
1634         return sa->dp_rx->pool_ops_supported(pool);
1635 }
1636
1637 static const struct eth_dev_ops sfc_eth_dev_ops = {
1638         .dev_configure                  = sfc_dev_configure,
1639         .dev_start                      = sfc_dev_start,
1640         .dev_stop                       = sfc_dev_stop,
1641         .dev_set_link_up                = sfc_dev_set_link_up,
1642         .dev_set_link_down              = sfc_dev_set_link_down,
1643         .dev_close                      = sfc_dev_close,
1644         .promiscuous_enable             = sfc_dev_promisc_enable,
1645         .promiscuous_disable            = sfc_dev_promisc_disable,
1646         .allmulticast_enable            = sfc_dev_allmulti_enable,
1647         .allmulticast_disable           = sfc_dev_allmulti_disable,
1648         .link_update                    = sfc_dev_link_update,
1649         .stats_get                      = sfc_stats_get,
1650         .stats_reset                    = sfc_stats_reset,
1651         .xstats_get                     = sfc_xstats_get,
1652         .xstats_reset                   = sfc_stats_reset,
1653         .xstats_get_names               = sfc_xstats_get_names,
1654         .dev_infos_get                  = sfc_dev_infos_get,
1655         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1656         .mtu_set                        = sfc_dev_set_mtu,
1657         .rx_queue_start                 = sfc_rx_queue_start,
1658         .rx_queue_stop                  = sfc_rx_queue_stop,
1659         .tx_queue_start                 = sfc_tx_queue_start,
1660         .tx_queue_stop                  = sfc_tx_queue_stop,
1661         .rx_queue_setup                 = sfc_rx_queue_setup,
1662         .rx_queue_release               = sfc_rx_queue_release,
1663         .rx_queue_count                 = sfc_rx_queue_count,
1664         .rx_descriptor_done             = sfc_rx_descriptor_done,
1665         .rx_descriptor_status           = sfc_rx_descriptor_status,
1666         .tx_descriptor_status           = sfc_tx_descriptor_status,
1667         .tx_queue_setup                 = sfc_tx_queue_setup,
1668         .tx_queue_release               = sfc_tx_queue_release,
1669         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1670         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1671         .mac_addr_set                   = sfc_mac_addr_set,
1672         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1673         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1674         .reta_update                    = sfc_dev_rss_reta_update,
1675         .reta_query                     = sfc_dev_rss_reta_query,
1676         .rss_hash_update                = sfc_dev_rss_hash_update,
1677         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1678         .filter_ctrl                    = sfc_dev_filter_ctrl,
1679         .set_mc_addr_list               = sfc_set_mc_addr_list,
1680         .rxq_info_get                   = sfc_rx_queue_info_get,
1681         .txq_info_get                   = sfc_tx_queue_info_get,
1682         .fw_version_get                 = sfc_fw_version_get,
1683         .xstats_get_by_id               = sfc_xstats_get_by_id,
1684         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1685         .pool_ops_supported             = sfc_pool_ops_supported,
1686 };
1687
1688 /**
1689  * Duplicate a string in potentially shared memory required for
1690  * multi-process support.
1691  *
1692  * strdup() allocates from process-local heap/memory.
1693  */
1694 static char *
1695 sfc_strdup(const char *str)
1696 {
1697         size_t size;
1698         char *copy;
1699
1700         if (str == NULL)
1701                 return NULL;
1702
1703         size = strlen(str) + 1;
1704         copy = rte_malloc(__func__, size, 0);
1705         if (copy != NULL)
1706                 rte_memcpy(copy, str, size);
1707
1708         return copy;
1709 }
1710
1711 static int
1712 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1713 {
1714         struct sfc_adapter *sa = dev->data->dev_private;
1715         const efx_nic_cfg_t *encp;
1716         unsigned int avail_caps = 0;
1717         const char *rx_name = NULL;
1718         const char *tx_name = NULL;
1719         int rc;
1720
1721         switch (sa->family) {
1722         case EFX_FAMILY_HUNTINGTON:
1723         case EFX_FAMILY_MEDFORD:
1724         case EFX_FAMILY_MEDFORD2:
1725                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1726                 break;
1727         default:
1728                 break;
1729         }
1730
1731         encp = efx_nic_cfg_get(sa->nic);
1732         if (encp->enc_rx_es_super_buffer_supported)
1733                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1734
1735         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1736                                 sfc_kvarg_string_handler, &rx_name);
1737         if (rc != 0)
1738                 goto fail_kvarg_rx_datapath;
1739
1740         if (rx_name != NULL) {
1741                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1742                 if (sa->dp_rx == NULL) {
1743                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1744                         rc = ENOENT;
1745                         goto fail_dp_rx;
1746                 }
1747                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1748                         sfc_err(sa,
1749                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1750                                 rx_name);
1751                         rc = EINVAL;
1752                         goto fail_dp_rx_caps;
1753                 }
1754         } else {
1755                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1756                 if (sa->dp_rx == NULL) {
1757                         sfc_err(sa, "Rx datapath by caps %#x not found",
1758                                 avail_caps);
1759                         rc = ENOENT;
1760                         goto fail_dp_rx;
1761                 }
1762         }
1763
1764         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1765         if (sa->dp_rx_name == NULL) {
1766                 rc = ENOMEM;
1767                 goto fail_dp_rx_name;
1768         }
1769
1770         sfc_notice(sa, "use %s Rx datapath", sa->dp_rx_name);
1771
1772         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1773
1774         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1775                                 sfc_kvarg_string_handler, &tx_name);
1776         if (rc != 0)
1777                 goto fail_kvarg_tx_datapath;
1778
1779         if (tx_name != NULL) {
1780                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1781                 if (sa->dp_tx == NULL) {
1782                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1783                         rc = ENOENT;
1784                         goto fail_dp_tx;
1785                 }
1786                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1787                         sfc_err(sa,
1788                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1789                                 tx_name);
1790                         rc = EINVAL;
1791                         goto fail_dp_tx_caps;
1792                 }
1793         } else {
1794                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1795                 if (sa->dp_tx == NULL) {
1796                         sfc_err(sa, "Tx datapath by caps %#x not found",
1797                                 avail_caps);
1798                         rc = ENOENT;
1799                         goto fail_dp_tx;
1800                 }
1801         }
1802
1803         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1804         if (sa->dp_tx_name == NULL) {
1805                 rc = ENOMEM;
1806                 goto fail_dp_tx_name;
1807         }
1808
1809         sfc_notice(sa, "use %s Tx datapath", sa->dp_tx_name);
1810
1811         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1812
1813         dev->dev_ops = &sfc_eth_dev_ops;
1814
1815         return 0;
1816
1817 fail_dp_tx_name:
1818 fail_dp_tx_caps:
1819         sa->dp_tx = NULL;
1820
1821 fail_dp_tx:
1822 fail_kvarg_tx_datapath:
1823         rte_free(sa->dp_rx_name);
1824         sa->dp_rx_name = NULL;
1825
1826 fail_dp_rx_name:
1827 fail_dp_rx_caps:
1828         sa->dp_rx = NULL;
1829
1830 fail_dp_rx:
1831 fail_kvarg_rx_datapath:
1832         return rc;
1833 }
1834
1835 static void
1836 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1837 {
1838         struct sfc_adapter *sa = dev->data->dev_private;
1839
1840         dev->dev_ops = NULL;
1841         dev->rx_pkt_burst = NULL;
1842         dev->tx_pkt_burst = NULL;
1843
1844         rte_free(sa->dp_tx_name);
1845         sa->dp_tx_name = NULL;
1846         sa->dp_tx = NULL;
1847
1848         rte_free(sa->dp_rx_name);
1849         sa->dp_rx_name = NULL;
1850         sa->dp_rx = NULL;
1851 }
1852
1853 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1854         .rxq_info_get                   = sfc_rx_queue_info_get,
1855         .txq_info_get                   = sfc_tx_queue_info_get,
1856 };
1857
1858 static int
1859 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1860 {
1861         /*
1862          * Device private data has really many process-local pointers.
1863          * Below code should be extremely careful to use data located
1864          * in shared memory only.
1865          */
1866         struct sfc_adapter *sa = dev->data->dev_private;
1867         const struct sfc_dp_rx *dp_rx;
1868         const struct sfc_dp_tx *dp_tx;
1869         int rc;
1870
1871         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1872         if (dp_rx == NULL) {
1873                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1874                 rc = ENOENT;
1875                 goto fail_dp_rx;
1876         }
1877         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1878                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1879                         sa->dp_tx_name);
1880                 rc = EINVAL;
1881                 goto fail_dp_rx_multi_process;
1882         }
1883
1884         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1885         if (dp_tx == NULL) {
1886                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1887                 rc = ENOENT;
1888                 goto fail_dp_tx;
1889         }
1890         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1891                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1892                         sa->dp_tx_name);
1893                 rc = EINVAL;
1894                 goto fail_dp_tx_multi_process;
1895         }
1896
1897         dev->rx_pkt_burst = dp_rx->pkt_burst;
1898         dev->tx_pkt_burst = dp_tx->pkt_burst;
1899         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1900
1901         return 0;
1902
1903 fail_dp_tx_multi_process:
1904 fail_dp_tx:
1905 fail_dp_rx_multi_process:
1906 fail_dp_rx:
1907         return rc;
1908 }
1909
1910 static void
1911 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1912 {
1913         dev->dev_ops = NULL;
1914         dev->tx_pkt_burst = NULL;
1915         dev->rx_pkt_burst = NULL;
1916 }
1917
1918 static void
1919 sfc_register_dp(void)
1920 {
1921         /* Register once */
1922         if (TAILQ_EMPTY(&sfc_dp_head)) {
1923                 /* Prefer EF10 datapath */
1924                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
1925                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1926                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1927
1928                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1929                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1930                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1931         }
1932 }
1933
1934 static int
1935 sfc_eth_dev_init(struct rte_eth_dev *dev)
1936 {
1937         struct sfc_adapter *sa = dev->data->dev_private;
1938         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1939         int rc;
1940         const efx_nic_cfg_t *encp;
1941         const struct ether_addr *from;
1942
1943         sfc_register_dp();
1944
1945         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1946                 return -sfc_eth_dev_secondary_set_ops(dev);
1947
1948         /* Required for logging */
1949         sa->pci_addr = pci_dev->addr;
1950         sa->port_id = dev->data->port_id;
1951
1952         sa->eth_dev = dev;
1953
1954         /* Copy PCI device info to the dev->data */
1955         rte_eth_copy_pci_info(dev, pci_dev);
1956
1957         sa->logtype_main = sfc_register_logtype(sa, SFC_LOGTYPE_MAIN_STR,
1958                                                 RTE_LOG_NOTICE);
1959
1960         rc = sfc_kvargs_parse(sa);
1961         if (rc != 0)
1962                 goto fail_kvargs_parse;
1963
1964         sfc_log_init(sa, "entry");
1965
1966         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1967         if (dev->data->mac_addrs == NULL) {
1968                 rc = ENOMEM;
1969                 goto fail_mac_addrs;
1970         }
1971
1972         sfc_adapter_lock_init(sa);
1973         sfc_adapter_lock(sa);
1974
1975         sfc_log_init(sa, "probing");
1976         rc = sfc_probe(sa);
1977         if (rc != 0)
1978                 goto fail_probe;
1979
1980         sfc_log_init(sa, "set device ops");
1981         rc = sfc_eth_dev_set_ops(dev);
1982         if (rc != 0)
1983                 goto fail_set_ops;
1984
1985         sfc_log_init(sa, "attaching");
1986         rc = sfc_attach(sa);
1987         if (rc != 0)
1988                 goto fail_attach;
1989
1990         encp = efx_nic_cfg_get(sa->nic);
1991
1992         /*
1993          * The arguments are really reverse order in comparison to
1994          * Linux kernel. Copy from NIC config to Ethernet device data.
1995          */
1996         from = (const struct ether_addr *)(encp->enc_mac_addr);
1997         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1998
1999         sfc_adapter_unlock(sa);
2000
2001         sfc_log_init(sa, "done");
2002         return 0;
2003
2004 fail_attach:
2005         sfc_eth_dev_clear_ops(dev);
2006
2007 fail_set_ops:
2008         sfc_unprobe(sa);
2009
2010 fail_probe:
2011         sfc_adapter_unlock(sa);
2012         sfc_adapter_lock_fini(sa);
2013         rte_free(dev->data->mac_addrs);
2014         dev->data->mac_addrs = NULL;
2015
2016 fail_mac_addrs:
2017         sfc_kvargs_cleanup(sa);
2018
2019 fail_kvargs_parse:
2020         sfc_log_init(sa, "failed %d", rc);
2021         SFC_ASSERT(rc > 0);
2022         return -rc;
2023 }
2024
2025 static int
2026 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2027 {
2028         struct sfc_adapter *sa;
2029
2030         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2031                 sfc_eth_dev_secondary_clear_ops(dev);
2032                 return 0;
2033         }
2034
2035         sa = dev->data->dev_private;
2036         sfc_log_init(sa, "entry");
2037
2038         sfc_adapter_lock(sa);
2039
2040         sfc_eth_dev_clear_ops(dev);
2041
2042         sfc_detach(sa);
2043         sfc_unprobe(sa);
2044
2045         rte_free(dev->data->mac_addrs);
2046         dev->data->mac_addrs = NULL;
2047
2048         sfc_kvargs_cleanup(sa);
2049
2050         sfc_adapter_unlock(sa);
2051         sfc_adapter_lock_fini(sa);
2052
2053         sfc_log_init(sa, "done");
2054
2055         /* Required for logging, so cleanup last */
2056         sa->eth_dev = NULL;
2057         return 0;
2058 }
2059
2060 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2061         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2062         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2063         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2064         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2065         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2066         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2067         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2068         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2069         { .vendor_id = 0 /* sentinel */ }
2070 };
2071
2072 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2073         struct rte_pci_device *pci_dev)
2074 {
2075         return rte_eth_dev_pci_generic_probe(pci_dev,
2076                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2077 }
2078
2079 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2080 {
2081         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2082 }
2083
2084 static struct rte_pci_driver sfc_efx_pmd = {
2085         .id_table = pci_id_sfc_efx_map,
2086         .drv_flags =
2087                 RTE_PCI_DRV_INTR_LSC |
2088                 RTE_PCI_DRV_NEED_MAPPING,
2089         .probe = sfc_eth_dev_pci_probe,
2090         .remove = sfc_eth_dev_pci_remove,
2091 };
2092
2093 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2094 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2095 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2096 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2097         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2098         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2099         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2100         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2101         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2102         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2103
2104 RTE_INIT(sfc_driver_register_logtype)
2105 {
2106         int ret;
2107
2108         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2109                                                    RTE_LOG_NOTICE);
2110         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2111 }