drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2016-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <rte_dev.h>
  11 #include <rte_ethdev_driver.h>
  12 #include <rte_ethdev_pci.h>
  13 #include <rte_pci.h>
  14 #include <rte_bus_pci.h>
  15 #include <rte_errno.h>
  16
  17 #include "efx.h"
  18
  19 #include "sfc.h"
  20 #include "sfc_debug.h"
  21 #include "sfc_log.h"
  22 #include "sfc_kvargs.h"
  23 #include "sfc_ev.h"
  24 #include "sfc_rx.h"
  25 #include "sfc_tx.h"
  26 #include "sfc_flow.h"
  27 #include "sfc_dp.h"
  28 #include "sfc_dp_rx.h"
  29
  30 uint32_t sfc_logtype_driver;
  31
  32 static struct sfc_dp_list sfc_dp_head =
  33         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  34
  35 static int
  36 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  37 {
  38         struct sfc_adapter *sa = dev->data->dev_private;
  39         efx_nic_fw_info_t enfi;
  40         int ret;
  41         int rc;
  42
  43         /*
  44          * Return value of the callback is likely supposed to be
  45          * equal to or greater than 0, nevertheless, if an error
  46          * occurs, it will be desirable to pass it to the caller
  47          */
  48         if ((fw_version == NULL) || (fw_size == 0))
  49                 return -EINVAL;
  50
  51         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  52         if (rc != 0)
  53                 return -rc;
  54
  55         ret = snprintf(fw_version, fw_size,
  56                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  57                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  58                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  59         if (ret < 0)
  60                 return ret;
  61
  62         if (enfi.enfi_dpcpu_fw_ids_valid) {
  63                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  64                 int ret_extra;
  65
  66                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  67                                      fw_size - dpcpu_fw_ids_offset,
  68                                      " rx%" PRIx16 " tx%" PRIx16,
  69                                      enfi.enfi_rx_dpcpu_fw_id,
  70                                      enfi.enfi_tx_dpcpu_fw_id);
  71                 if (ret_extra < 0)
  72                         return ret_extra;
  73
  74                 ret += ret_extra;
  75         }
  76
  77         if (fw_size < (size_t)(++ret))
  78                 return ret;
  79         else
  80                 return 0;
  81 }
  82
  83 static void
  84 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  85 {
  86         struct sfc_adapter *sa = dev->data->dev_private;
  87         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  88         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         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 142         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 143             !encp->enc_hw_tx_insert_vlan_enabled)
 144                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 145
 146         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 147                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 148
 149         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
 150                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
 151
 152         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
 153                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
 154
 155         if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
 156                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 157                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 158                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 159         }
 160
 161         /* Initialize to hardware limits */
 162         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 163         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 164         /* The RXQ hardware requires that the descriptor count is a power
 165          * of 2, but rx_desc_lim cannot properly describe that constraint.
 166          */
 167         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 168
 169         /* Initialize to hardware limits */
 170         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 171         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 172         /*
 173          * The TXQ hardware requires that the descriptor count is a power
 174          * of 2, but tx_desc_lim cannot properly describe that constraint
 175          */
 176         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 177
 178         if (sa->dp_rx->get_dev_info != NULL)
 179                 sa->dp_rx->get_dev_info(dev_info);
 180         if (sa->dp_tx->get_dev_info != NULL)
 181                 sa->dp_tx->get_dev_info(dev_info);
 182 }
 183
 184 static const uint32_t *
 185 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 186 {
 187         struct sfc_adapter *sa = dev->data->dev_private;
 188         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 189         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 190
 191         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 192 }
 193
 194 static int
 195 sfc_dev_configure(struct rte_eth_dev *dev)
 196 {
 197         struct rte_eth_dev_data *dev_data = dev->data;
 198         struct sfc_adapter *sa = dev_data->dev_private;
 199         int rc;
 200
 201         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 202                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 203
 204         sfc_adapter_lock(sa);
 205         switch (sa->state) {
 206         case SFC_ADAPTER_CONFIGURED:
 207                 /* FALLTHROUGH */
 208         case SFC_ADAPTER_INITIALIZED:
 209                 rc = sfc_configure(sa);
 210                 break;
 211         default:
 212                 sfc_err(sa, "unexpected adapter state %u to configure",
 213                         sa->state);
 214                 rc = EINVAL;
 215                 break;
 216         }
 217         sfc_adapter_unlock(sa);
 218
 219         sfc_log_init(sa, "done %d", rc);
 220         SFC_ASSERT(rc >= 0);
 221         return -rc;
 222 }
 223
 224 static int
 225 sfc_dev_start(struct rte_eth_dev *dev)
 226 {
 227         struct sfc_adapter *sa = dev->data->dev_private;
 228         int rc;
 229
 230         sfc_log_init(sa, "entry");
 231
 232         sfc_adapter_lock(sa);
 233         rc = sfc_start(sa);
 234         sfc_adapter_unlock(sa);
 235
 236         sfc_log_init(sa, "done %d", rc);
 237         SFC_ASSERT(rc >= 0);
 238         return -rc;
 239 }
 240
 241 static int
 242 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 243 {
 244         struct sfc_adapter *sa = dev->data->dev_private;
 245         struct rte_eth_link current_link;
 246         int ret;
 247
 248         sfc_log_init(sa, "entry");
 249
 250         if (sa->state != SFC_ADAPTER_STARTED) {
 251                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 252         } else if (wait_to_complete) {
 253                 efx_link_mode_t link_mode;
 254
 255                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 256                         link_mode = EFX_LINK_UNKNOWN;
 257                 sfc_port_link_mode_to_info(link_mode, &current_link);
 258
 259         } else {
 260                 sfc_ev_mgmt_qpoll(sa);
 261                 rte_eth_linkstatus_get(dev, &current_link);
 262         }
 263
 264         ret = rte_eth_linkstatus_set(dev, &current_link);
 265         if (ret == 0)
 266                 sfc_notice(sa, "Link status is %s",
 267                            current_link.link_status ? "UP" : "DOWN");
 268
 269         return ret;
 270 }
 271
 272 static void
 273 sfc_dev_stop(struct rte_eth_dev *dev)
 274 {
 275         struct sfc_adapter *sa = dev->data->dev_private;
 276
 277         sfc_log_init(sa, "entry");
 278
 279         sfc_adapter_lock(sa);
 280         sfc_stop(sa);
 281         sfc_adapter_unlock(sa);
 282
 283         sfc_log_init(sa, "done");
 284 }
 285
 286 static int
 287 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 288 {
 289         struct sfc_adapter *sa = dev->data->dev_private;
 290         int rc;
 291
 292         sfc_log_init(sa, "entry");
 293
 294         sfc_adapter_lock(sa);
 295         rc = sfc_start(sa);
 296         sfc_adapter_unlock(sa);
 297
 298         SFC_ASSERT(rc >= 0);
 299         return -rc;
 300 }
 301
 302 static int
 303 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 304 {
 305         struct sfc_adapter *sa = dev->data->dev_private;
 306
 307         sfc_log_init(sa, "entry");
 308
 309         sfc_adapter_lock(sa);
 310         sfc_stop(sa);
 311         sfc_adapter_unlock(sa);
 312
 313         return 0;
 314 }
 315
 316 static void
 317 sfc_dev_close(struct rte_eth_dev *dev)
 318 {
 319         struct sfc_adapter *sa = dev->data->dev_private;
 320
 321         sfc_log_init(sa, "entry");
 322
 323         sfc_adapter_lock(sa);
 324         switch (sa->state) {
 325         case SFC_ADAPTER_STARTED:
 326                 sfc_stop(sa);
 327                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 328                 /* FALLTHROUGH */
 329         case SFC_ADAPTER_CONFIGURED:
 330                 sfc_close(sa);
 331                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 332                 /* FALLTHROUGH */
 333         case SFC_ADAPTER_INITIALIZED:
 334                 break;
 335         default:
 336                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 337                 break;
 338         }
 339         sfc_adapter_unlock(sa);
 340
 341         sfc_log_init(sa, "done");
 342 }
 343
 344 static void
 345 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 346                    boolean_t enabled)
 347 {
 348         struct sfc_port *port;
 349         boolean_t *toggle;
 350         struct sfc_adapter *sa = dev->data->dev_private;
 351         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 352         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 353
 354         sfc_adapter_lock(sa);
 355
 356         port = &sa->port;
 357         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 358
 359         if (*toggle != enabled) {
 360                 *toggle = enabled;
 361
 362                 if (port->isolated) {
 363                         sfc_warn(sa, "isolated mode is active on the port");
 364                         sfc_warn(sa, "the change is to be applied on the next "
 365                                      "start provided that isolated mode is "
 366                                      "disabled prior the next start");
 367                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 368                            (sfc_set_rx_mode(sa) != 0)) {
 369                         *toggle = !(enabled);
 370                         sfc_warn(sa, "Failed to %s %s mode",
 371                                  ((enabled) ? "enable" : "disable"), desc);
 372                 }
 373         }
 374
 375         sfc_adapter_unlock(sa);
 376 }
 377
 378 static void
 379 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 380 {
 381         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 382 }
 383
 384 static void
 385 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 386 {
 387         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 388 }
 389
 390 static void
 391 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 392 {
 393         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 394 }
 395
 396 static void
 397 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 398 {
 399         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 400 }
 401
 402 static int
 403 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 404                    uint16_t nb_rx_desc, unsigned int socket_id,
 405                    const struct rte_eth_rxconf *rx_conf,
 406                    struct rte_mempool *mb_pool)
 407 {
 408         struct sfc_adapter *sa = dev->data->dev_private;
 409         int rc;
 410
 411         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 412                      rx_queue_id, nb_rx_desc, socket_id);
 413
 414         sfc_adapter_lock(sa);
 415
 416         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 417                           rx_conf, mb_pool);
 418         if (rc != 0)
 419                 goto fail_rx_qinit;
 420
 421         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 422
 423         sfc_adapter_unlock(sa);
 424
 425         return 0;
 426
 427 fail_rx_qinit:
 428         sfc_adapter_unlock(sa);
 429         SFC_ASSERT(rc > 0);
 430         return -rc;
 431 }
 432
 433 static void
 434 sfc_rx_queue_release(void *queue)
 435 {
 436         struct sfc_dp_rxq *dp_rxq = queue;
 437         struct sfc_rxq *rxq;
 438         struct sfc_adapter *sa;
 439         unsigned int sw_index;
 440
 441         if (dp_rxq == NULL)
 442                 return;
 443
 444         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 445         sa = rxq->evq->sa;
 446         sfc_adapter_lock(sa);
 447
 448         sw_index = sfc_rxq_sw_index(rxq);
 449
 450         sfc_log_init(sa, "RxQ=%u", sw_index);
 451
 452         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 453
 454         sfc_rx_qfini(sa, sw_index);
 455
 456         sfc_adapter_unlock(sa);
 457 }
 458
 459 static int
 460 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 461                    uint16_t nb_tx_desc, unsigned int socket_id,
 462                    const struct rte_eth_txconf *tx_conf)
 463 {
 464         struct sfc_adapter *sa = dev->data->dev_private;
 465         int rc;
 466
 467         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 468                      tx_queue_id, nb_tx_desc, socket_id);
 469
 470         sfc_adapter_lock(sa);
 471
 472         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 473         if (rc != 0)
 474                 goto fail_tx_qinit;
 475
 476         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 477
 478         sfc_adapter_unlock(sa);
 479         return 0;
 480
 481 fail_tx_qinit:
 482         sfc_adapter_unlock(sa);
 483         SFC_ASSERT(rc > 0);
 484         return -rc;
 485 }
 486
 487 static void
 488 sfc_tx_queue_release(void *queue)
 489 {
 490         struct sfc_dp_txq *dp_txq = queue;
 491         struct sfc_txq *txq;
 492         unsigned int sw_index;
 493         struct sfc_adapter *sa;
 494
 495         if (dp_txq == NULL)
 496                 return;
 497
 498         txq = sfc_txq_by_dp_txq(dp_txq);
 499         sw_index = sfc_txq_sw_index(txq);
 500
 501         SFC_ASSERT(txq->evq != NULL);
 502         sa = txq->evq->sa;
 503
 504         sfc_log_init(sa, "TxQ = %u", sw_index);
 505
 506         sfc_adapter_lock(sa);
 507
 508         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 509         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 510
 511         sfc_tx_qfini(sa, sw_index);
 512
 513         sfc_adapter_unlock(sa);
 514 }
 515
 516 static int
 517 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 518 {
 519         struct sfc_adapter *sa = dev->data->dev_private;
 520         struct sfc_port *port = &sa->port;
 521         uint64_t *mac_stats;
 522         int ret;
 523
 524         rte_spinlock_lock(&port->mac_stats_lock);
 525
 526         ret = sfc_port_update_mac_stats(sa);
 527         if (ret != 0)
 528                 goto unlock;
 529
 530         mac_stats = port->mac_stats_buf;
 531
 532         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 533                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 534                 stats->ipackets =
 535                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 536                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 537                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 538                 stats->opackets =
 539                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 540                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 541                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 542                 stats->ibytes =
 543                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 544                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 545                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 546                 stats->obytes =
 547                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 548                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 549                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 550                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 551                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 552                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 553         } else {
 554                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 555                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 556                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 557                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 558                 /*
 559                  * Take into account stats which are whenever supported
 560                  * on EF10. If some stat is not supported by current
 561                  * firmware variant or HW revision, it is guaranteed
 562                  * to be zero in mac_stats.
 563                  */
 564                 stats->imissed =
 565                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 566                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 567                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 568                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 569                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 570                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 571                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 572                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 573                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 574                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 575                 stats->ierrors =
 576                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 577                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 578                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 579                 /* no oerrors counters supported on EF10 */
 580         }
 581
 582 unlock:
 583         rte_spinlock_unlock(&port->mac_stats_lock);
 584         SFC_ASSERT(ret >= 0);
 585         return -ret;
 586 }
 587
 588 static void
 589 sfc_stats_reset(struct rte_eth_dev *dev)
 590 {
 591         struct sfc_adapter *sa = dev->data->dev_private;
 592         struct sfc_port *port = &sa->port;
 593         int rc;
 594
 595         if (sa->state != SFC_ADAPTER_STARTED) {
 596                 /*
 597                  * The operation cannot be done if port is not started; it
 598                  * will be scheduled to be done during the next port start
 599                  */
 600                 port->mac_stats_reset_pending = B_TRUE;
 601                 return;
 602         }
 603
 604         rc = sfc_port_reset_mac_stats(sa);
 605         if (rc != 0)
 606                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 607 }
 608
 609 static int
 610 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 611                unsigned int xstats_count)
 612 {
 613         struct sfc_adapter *sa = dev->data->dev_private;
 614         struct sfc_port *port = &sa->port;
 615         uint64_t *mac_stats;
 616         int rc;
 617         unsigned int i;
 618         int nstats = 0;
 619
 620         rte_spinlock_lock(&port->mac_stats_lock);
 621
 622         rc = sfc_port_update_mac_stats(sa);
 623         if (rc != 0) {
 624                 SFC_ASSERT(rc > 0);
 625                 nstats = -rc;
 626                 goto unlock;
 627         }
 628
 629         mac_stats = port->mac_stats_buf;
 630
 631         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 632                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 633                         if (xstats != NULL && nstats < (int)xstats_count) {
 634                                 xstats[nstats].id = nstats;
 635                                 xstats[nstats].value = mac_stats[i];
 636                         }
 637                         nstats++;
 638                 }
 639         }
 640
 641 unlock:
 642         rte_spinlock_unlock(&port->mac_stats_lock);
 643
 644         return nstats;
 645 }
 646
 647 static int
 648 sfc_xstats_get_names(struct rte_eth_dev *dev,
 649                      struct rte_eth_xstat_name *xstats_names,
 650                      unsigned int xstats_count)
 651 {
 652         struct sfc_adapter *sa = dev->data->dev_private;
 653         struct sfc_port *port = &sa->port;
 654         unsigned int i;
 655         unsigned int nstats = 0;
 656
 657         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 658                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 659                         if (xstats_names != NULL && nstats < xstats_count)
 660                                 strncpy(xstats_names[nstats].name,
 661                                         efx_mac_stat_name(sa->nic, i),
 662                                         sizeof(xstats_names[0].name));
 663                         nstats++;
 664                 }
 665         }
 666
 667         return nstats;
 668 }
 669
 670 static int
 671 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 672                      uint64_t *values, unsigned int n)
 673 {
 674         struct sfc_adapter *sa = dev->data->dev_private;
 675         struct sfc_port *port = &sa->port;
 676         uint64_t *mac_stats;
 677         unsigned int nb_supported = 0;
 678         unsigned int nb_written = 0;
 679         unsigned int i;
 680         int ret;
 681         int rc;
 682
 683         if (unlikely(values == NULL) ||
 684             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 685                 return port->mac_stats_nb_supported;
 686
 687         rte_spinlock_lock(&port->mac_stats_lock);
 688
 689         rc = sfc_port_update_mac_stats(sa);
 690         if (rc != 0) {
 691                 SFC_ASSERT(rc > 0);
 692                 ret = -rc;
 693                 goto unlock;
 694         }
 695
 696         mac_stats = port->mac_stats_buf;
 697
 698         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 699                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 700                         continue;
 701
 702                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 703                         values[nb_written++] = mac_stats[i];
 704
 705                 ++nb_supported;
 706         }
 707
 708         ret = nb_written;
 709
 710 unlock:
 711         rte_spinlock_unlock(&port->mac_stats_lock);
 712
 713         return ret;
 714 }
 715
 716 static int
 717 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 718                            struct rte_eth_xstat_name *xstats_names,
 719                            const uint64_t *ids, unsigned int size)
 720 {
 721         struct sfc_adapter *sa = dev->data->dev_private;
 722         struct sfc_port *port = &sa->port;
 723         unsigned int nb_supported = 0;
 724         unsigned int nb_written = 0;
 725         unsigned int i;
 726
 727         if (unlikely(xstats_names == NULL) ||
 728             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 729                 return port->mac_stats_nb_supported;
 730
 731         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 732                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 733                         continue;
 734
 735                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 736                         char *name = xstats_names[nb_written++].name;
 737
 738                         strncpy(name, efx_mac_stat_name(sa->nic, i),
 739                                 sizeof(xstats_names[0].name));
 740                         name[sizeof(xstats_names[0].name) - 1] = '\0';
 741                 }
 742
 743                 ++nb_supported;
 744         }
 745
 746         return nb_written;
 747 }
 748
 749 static int
 750 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 751 {
 752         struct sfc_adapter *sa = dev->data->dev_private;
 753         unsigned int wanted_fc, link_fc;
 754
 755         memset(fc_conf, 0, sizeof(*fc_conf));
 756
 757         sfc_adapter_lock(sa);
 758
 759         if (sa->state == SFC_ADAPTER_STARTED)
 760                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 761         else
 762                 link_fc = sa->port.flow_ctrl;
 763
 764         switch (link_fc) {
 765         case 0:
 766                 fc_conf->mode = RTE_FC_NONE;
 767                 break;
 768         case EFX_FCNTL_RESPOND:
 769                 fc_conf->mode = RTE_FC_RX_PAUSE;
 770                 break;
 771         case EFX_FCNTL_GENERATE:
 772                 fc_conf->mode = RTE_FC_TX_PAUSE;
 773                 break;
 774         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 775                 fc_conf->mode = RTE_FC_FULL;
 776                 break;
 777         default:
 778                 sfc_err(sa, "%s: unexpected flow control value %#x",
 779                         __func__, link_fc);
 780         }
 781
 782         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 783
 784         sfc_adapter_unlock(sa);
 785
 786         return 0;
 787 }
 788
 789 static int
 790 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 791 {
 792         struct sfc_adapter *sa = dev->data->dev_private;
 793         struct sfc_port *port = &sa->port;
 794         unsigned int fcntl;
 795         int rc;
 796
 797         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 798             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 799             fc_conf->mac_ctrl_frame_fwd != 0) {
 800                 sfc_err(sa, "unsupported flow control settings specified");
 801                 rc = EINVAL;
 802                 goto fail_inval;
 803         }
 804
 805         switch (fc_conf->mode) {
 806         case RTE_FC_NONE:
 807                 fcntl = 0;
 808                 break;
 809         case RTE_FC_RX_PAUSE:
 810                 fcntl = EFX_FCNTL_RESPOND;
 811                 break;
 812         case RTE_FC_TX_PAUSE:
 813                 fcntl = EFX_FCNTL_GENERATE;
 814                 break;
 815         case RTE_FC_FULL:
 816                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 817                 break;
 818         default:
 819                 rc = EINVAL;
 820                 goto fail_inval;
 821         }
 822
 823         sfc_adapter_lock(sa);
 824
 825         if (sa->state == SFC_ADAPTER_STARTED) {
 826                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 827                 if (rc != 0)
 828                         goto fail_mac_fcntl_set;
 829         }
 830
 831         port->flow_ctrl = fcntl;
 832         port->flow_ctrl_autoneg = fc_conf->autoneg;
 833
 834         sfc_adapter_unlock(sa);
 835
 836         return 0;
 837
 838 fail_mac_fcntl_set:
 839         sfc_adapter_unlock(sa);
 840 fail_inval:
 841         SFC_ASSERT(rc > 0);
 842         return -rc;
 843 }
 844
 845 static int
 846 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 847 {
 848         struct sfc_adapter *sa = dev->data->dev_private;
 849         size_t pdu = EFX_MAC_PDU(mtu);
 850         size_t old_pdu;
 851         int rc;
 852
 853         sfc_log_init(sa, "mtu=%u", mtu);
 854
 855         rc = EINVAL;
 856         if (pdu < EFX_MAC_PDU_MIN) {
 857                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 858                         (unsigned int)mtu, (unsigned int)pdu,
 859                         EFX_MAC_PDU_MIN);
 860                 goto fail_inval;
 861         }
 862         if (pdu > EFX_MAC_PDU_MAX) {
 863                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 864                         (unsigned int)mtu, (unsigned int)pdu,
 865                         EFX_MAC_PDU_MAX);
 866                 goto fail_inval;
 867         }
 868
 869         sfc_adapter_lock(sa);
 870
 871         if (pdu != sa->port.pdu) {
 872                 if (sa->state == SFC_ADAPTER_STARTED) {
 873                         sfc_stop(sa);
 874
 875                         old_pdu = sa->port.pdu;
 876                         sa->port.pdu = pdu;
 877                         rc = sfc_start(sa);
 878                         if (rc != 0)
 879                                 goto fail_start;
 880                 } else {
 881                         sa->port.pdu = pdu;
 882                 }
 883         }
 884
 885         /*
 886          * The driver does not use it, but other PMDs update jumbo_frame
 887          * flag and max_rx_pkt_len when MTU is set.
 888          */
 889         if (mtu > ETHER_MAX_LEN) {
 890                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 891
 892                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 893                 rxmode->jumbo_frame = 1;
 894         }
 895
 896         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 897
 898         sfc_adapter_unlock(sa);
 899
 900         sfc_log_init(sa, "done");
 901         return 0;
 902
 903 fail_start:
 904         sa->port.pdu = old_pdu;
 905         if (sfc_start(sa) != 0)
 906                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 907                         "PDU max size - port is stopped",
 908                         (unsigned int)pdu, (unsigned int)old_pdu);
 909         sfc_adapter_unlock(sa);
 910
 911 fail_inval:
 912         sfc_log_init(sa, "failed %d", rc);
 913         SFC_ASSERT(rc > 0);
 914         return -rc;
 915 }
 916 static int
 917 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 918 {
 919         struct sfc_adapter *sa = dev->data->dev_private;
 920         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 921         struct sfc_port *port = &sa->port;
 922         struct ether_addr *old_addr = &dev->data->mac_addrs[0];
 923         int rc = 0;
 924
 925         sfc_adapter_lock(sa);
 926
 927         /*
 928          * Copy the address to the device private data so that
 929          * it could be recalled in the case of adapter restart.
 930          */
 931         ether_addr_copy(mac_addr, &port->default_mac_addr);
 932
 933         /*
 934          * Neither of the two following checks can return
 935          * an error. The new MAC address is preserved in
 936          * the device private data and can be activated
 937          * on the next port start if the user prevents
 938          * isolated mode from being enabled.
 939          */
 940         if (port->isolated) {
 941                 sfc_warn(sa, "isolated mode is active on the port");
 942                 sfc_warn(sa, "will not set MAC address");
 943                 goto unlock;
 944         }
 945
 946         if (sa->state != SFC_ADAPTER_STARTED) {
 947                 sfc_notice(sa, "the port is not started");
 948                 sfc_notice(sa, "the new MAC address will be set on port start");
 949
 950                 goto unlock;
 951         }
 952
 953         if (encp->enc_allow_set_mac_with_installed_filters) {
 954                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 955                 if (rc != 0) {
 956                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 957                         goto unlock;
 958                 }
 959
 960                 /*
 961                  * Changing the MAC address by means of MCDI request
 962                  * has no effect on received traffic, therefore
 963                  * we also need to update unicast filters
 964                  */
 965                 rc = sfc_set_rx_mode(sa);
 966                 if (rc != 0) {
 967                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 968                         /* Rollback the old address */
 969                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
 970                         (void)sfc_set_rx_mode(sa);
 971                 }
 972         } else {
 973                 sfc_warn(sa, "cannot set MAC address with filters installed");
 974                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 975                 sfc_warn(sa, "(some traffic may be dropped)");
 976
 977                 /*
 978                  * Since setting MAC address with filters installed is not
 979                  * allowed on the adapter, the new MAC address will be set
 980                  * by means of adapter restart. sfc_start() shall retrieve
 981                  * the new address from the device private data and set it.
 982                  */
 983                 sfc_stop(sa);
 984                 rc = sfc_start(sa);
 985                 if (rc != 0)
 986                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 987         }
 988
 989 unlock:
 990         if (rc != 0)
 991                 ether_addr_copy(old_addr, &port->default_mac_addr);
 992
 993         sfc_adapter_unlock(sa);
 994
 995         SFC_ASSERT(rc >= 0);
 996         return -rc;
 997 }
 998
 999
1000 static int
1001 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
1002                      uint32_t nb_mc_addr)
1003 {
1004         struct sfc_adapter *sa = dev->data->dev_private;
1005         struct sfc_port *port = &sa->port;
1006         uint8_t *mc_addrs = port->mcast_addrs;
1007         int rc;
1008         unsigned int i;
1009
1010         if (port->isolated) {
1011                 sfc_err(sa, "isolated mode is active on the port");
1012                 sfc_err(sa, "will not set multicast address list");
1013                 return -ENOTSUP;
1014         }
1015
1016         if (mc_addrs == NULL)
1017                 return -ENOBUFS;
1018
1019         if (nb_mc_addr > port->max_mcast_addrs) {
1020                 sfc_err(sa, "too many multicast addresses: %u > %u",
1021                          nb_mc_addr, port->max_mcast_addrs);
1022                 return -EINVAL;
1023         }
1024
1025         for (i = 0; i < nb_mc_addr; ++i) {
1026                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1027                                  EFX_MAC_ADDR_LEN);
1028                 mc_addrs += EFX_MAC_ADDR_LEN;
1029         }
1030
1031         port->nb_mcast_addrs = nb_mc_addr;
1032
1033         if (sa->state != SFC_ADAPTER_STARTED)
1034                 return 0;
1035
1036         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1037                                         port->nb_mcast_addrs);
1038         if (rc != 0)
1039                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1040
1041         SFC_ASSERT(rc > 0);
1042         return -rc;
1043 }
1044
1045 /*
1046  * The function is used by the secondary process as well. It must not
1047  * use any process-local pointers from the adapter data.
1048  */
1049 static void
1050 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1051                       struct rte_eth_rxq_info *qinfo)
1052 {
1053         struct sfc_adapter *sa = dev->data->dev_private;
1054         struct sfc_rxq_info *rxq_info;
1055         struct sfc_rxq *rxq;
1056
1057         sfc_adapter_lock(sa);
1058
1059         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1060
1061         rxq_info = &sa->rxq_info[rx_queue_id];
1062         rxq = rxq_info->rxq;
1063         SFC_ASSERT(rxq != NULL);
1064
1065         qinfo->mp = rxq->refill_mb_pool;
1066         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1067         qinfo->conf.rx_drop_en = 1;
1068         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1069         qinfo->conf.offloads = DEV_RX_OFFLOAD_IPV4_CKSUM |
1070                                DEV_RX_OFFLOAD_UDP_CKSUM |
1071                                DEV_RX_OFFLOAD_TCP_CKSUM;
1072         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1073                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1074                 qinfo->scattered_rx = 1;
1075         }
1076         qinfo->nb_desc = rxq_info->entries;
1077
1078         sfc_adapter_unlock(sa);
1079 }
1080
1081 /*
1082  * The function is used by the secondary process as well. It must not
1083  * use any process-local pointers from the adapter data.
1084  */
1085 static void
1086 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1087                       struct rte_eth_txq_info *qinfo)
1088 {
1089         struct sfc_adapter *sa = dev->data->dev_private;
1090         struct sfc_txq_info *txq_info;
1091
1092         sfc_adapter_lock(sa);
1093
1094         SFC_ASSERT(tx_queue_id < sa->txq_count);
1095
1096         txq_info = &sa->txq_info[tx_queue_id];
1097         SFC_ASSERT(txq_info->txq != NULL);
1098
1099         memset(qinfo, 0, sizeof(*qinfo));
1100
1101         qinfo->conf.txq_flags = txq_info->txq->flags;
1102         qinfo->conf.offloads = txq_info->txq->offloads;
1103         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1104         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1105         qinfo->nb_desc = txq_info->entries;
1106
1107         sfc_adapter_unlock(sa);
1108 }
1109
1110 static uint32_t
1111 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1112 {
1113         struct sfc_adapter *sa = dev->data->dev_private;
1114
1115         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1116
1117         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1118 }
1119
1120 static int
1121 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1122 {
1123         struct sfc_dp_rxq *dp_rxq = queue;
1124
1125         return sfc_rx_qdesc_done(dp_rxq, offset);
1126 }
1127
1128 static int
1129 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1130 {
1131         struct sfc_dp_rxq *dp_rxq = queue;
1132         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1133
1134         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1135 }
1136
1137 static int
1138 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1139 {
1140         struct sfc_dp_txq *dp_txq = queue;
1141         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1142
1143         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1144 }
1145
1146 static int
1147 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1148 {
1149         struct sfc_adapter *sa = dev->data->dev_private;
1150         int rc;
1151
1152         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1153
1154         sfc_adapter_lock(sa);
1155
1156         rc = EINVAL;
1157         if (sa->state != SFC_ADAPTER_STARTED)
1158                 goto fail_not_started;
1159
1160         rc = sfc_rx_qstart(sa, rx_queue_id);
1161         if (rc != 0)
1162                 goto fail_rx_qstart;
1163
1164         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1165
1166         sfc_adapter_unlock(sa);
1167
1168         return 0;
1169
1170 fail_rx_qstart:
1171 fail_not_started:
1172         sfc_adapter_unlock(sa);
1173         SFC_ASSERT(rc > 0);
1174         return -rc;
1175 }
1176
1177 static int
1178 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1179 {
1180         struct sfc_adapter *sa = dev->data->dev_private;
1181
1182         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1183
1184         sfc_adapter_lock(sa);
1185         sfc_rx_qstop(sa, rx_queue_id);
1186
1187         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1188
1189         sfc_adapter_unlock(sa);
1190
1191         return 0;
1192 }
1193
1194 static int
1195 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1196 {
1197         struct sfc_adapter *sa = dev->data->dev_private;
1198         int rc;
1199
1200         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1201
1202         sfc_adapter_lock(sa);
1203
1204         rc = EINVAL;
1205         if (sa->state != SFC_ADAPTER_STARTED)
1206                 goto fail_not_started;
1207
1208         rc = sfc_tx_qstart(sa, tx_queue_id);
1209         if (rc != 0)
1210                 goto fail_tx_qstart;
1211
1212         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1213
1214         sfc_adapter_unlock(sa);
1215         return 0;
1216
1217 fail_tx_qstart:
1218
1219 fail_not_started:
1220         sfc_adapter_unlock(sa);
1221         SFC_ASSERT(rc > 0);
1222         return -rc;
1223 }
1224
1225 static int
1226 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1227 {
1228         struct sfc_adapter *sa = dev->data->dev_private;
1229
1230         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1231
1232         sfc_adapter_lock(sa);
1233
1234         sfc_tx_qstop(sa, tx_queue_id);
1235
1236         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1237
1238         sfc_adapter_unlock(sa);
1239         return 0;
1240 }
1241
1242 static efx_tunnel_protocol_t
1243 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1244 {
1245         switch (rte_type) {
1246         case RTE_TUNNEL_TYPE_VXLAN:
1247                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1248         case RTE_TUNNEL_TYPE_GENEVE:
1249                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1250         default:
1251                 return EFX_TUNNEL_NPROTOS;
1252         }
1253 }
1254
1255 enum sfc_udp_tunnel_op_e {
1256         SFC_UDP_TUNNEL_ADD_PORT,
1257         SFC_UDP_TUNNEL_DEL_PORT,
1258 };
1259
1260 static int
1261 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1262                       struct rte_eth_udp_tunnel *tunnel_udp,
1263                       enum sfc_udp_tunnel_op_e op)
1264 {
1265         struct sfc_adapter *sa = dev->data->dev_private;
1266         efx_tunnel_protocol_t tunnel_proto;
1267         int rc;
1268
1269         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1270                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1271                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1272                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1273
1274         tunnel_proto =
1275                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1276         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1277                 rc = ENOTSUP;
1278                 goto fail_bad_proto;
1279         }
1280
1281         sfc_adapter_lock(sa);
1282
1283         switch (op) {
1284         case SFC_UDP_TUNNEL_ADD_PORT:
1285                 rc = efx_tunnel_config_udp_add(sa->nic,
1286                                                tunnel_udp->udp_port,
1287                                                tunnel_proto);
1288                 break;
1289         case SFC_UDP_TUNNEL_DEL_PORT:
1290                 rc = efx_tunnel_config_udp_remove(sa->nic,
1291                                                   tunnel_udp->udp_port,
1292                                                   tunnel_proto);
1293                 break;
1294         default:
1295                 rc = EINVAL;
1296                 goto fail_bad_op;
1297         }
1298
1299         if (rc != 0)
1300                 goto fail_op;
1301
1302         if (sa->state == SFC_ADAPTER_STARTED) {
1303                 rc = efx_tunnel_reconfigure(sa->nic);
1304                 if (rc == EAGAIN) {
1305                         /*
1306                          * Configuration is accepted by FW and MC reboot
1307                          * is initiated to apply the changes. MC reboot
1308                          * will be handled in a usual way (MC reboot
1309                          * event on management event queue and adapter
1310                          * restart).
1311                          */
1312                         rc = 0;
1313                 } else if (rc != 0) {
1314                         goto fail_reconfigure;
1315                 }
1316         }
1317
1318         sfc_adapter_unlock(sa);
1319         return 0;
1320
1321 fail_reconfigure:
1322         /* Remove/restore entry since the change makes the trouble */
1323         switch (op) {
1324         case SFC_UDP_TUNNEL_ADD_PORT:
1325                 (void)efx_tunnel_config_udp_remove(sa->nic,
1326                                                    tunnel_udp->udp_port,
1327                                                    tunnel_proto);
1328                 break;
1329         case SFC_UDP_TUNNEL_DEL_PORT:
1330                 (void)efx_tunnel_config_udp_add(sa->nic,
1331                                                 tunnel_udp->udp_port,
1332                                                 tunnel_proto);
1333                 break;
1334         }
1335
1336 fail_op:
1337 fail_bad_op:
1338         sfc_adapter_unlock(sa);
1339
1340 fail_bad_proto:
1341         SFC_ASSERT(rc > 0);
1342         return -rc;
1343 }
1344
1345 static int
1346 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1347                             struct rte_eth_udp_tunnel *tunnel_udp)
1348 {
1349         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1350 }
1351
1352 static int
1353 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1354                             struct rte_eth_udp_tunnel *tunnel_udp)
1355 {
1356         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1357 }
1358
1359 static int
1360 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1361                           struct rte_eth_rss_conf *rss_conf)
1362 {
1363         struct sfc_adapter *sa = dev->data->dev_private;
1364         struct sfc_rss *rss = &sa->rss;
1365         struct sfc_port *port = &sa->port;
1366
1367         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || port->isolated)
1368                 return -ENOTSUP;
1369
1370         if (rss->channels == 0)
1371                 return -EINVAL;
1372
1373         sfc_adapter_lock(sa);
1374
1375         /*
1376          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1377          * hence, conversion is done here to derive a correct set of ETH_RSS
1378          * flags which corresponds to the active EFX configuration stored
1379          * locally in 'sfc_adapter' and kept up-to-date
1380          */
1381         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(rss->hash_types);
1382         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1383         if (rss_conf->rss_key != NULL)
1384                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1385
1386         sfc_adapter_unlock(sa);
1387
1388         return 0;
1389 }
1390
1391 static int
1392 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1393                         struct rte_eth_rss_conf *rss_conf)
1394 {
1395         struct sfc_adapter *sa = dev->data->dev_private;
1396         struct sfc_rss *rss = &sa->rss;
1397         struct sfc_port *port = &sa->port;
1398         unsigned int efx_hash_types;
1399         int rc = 0;
1400
1401         if (port->isolated)
1402                 return -ENOTSUP;
1403
1404         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1405                 sfc_err(sa, "RSS is not available");
1406                 return -ENOTSUP;
1407         }
1408
1409         if (rss->channels == 0) {
1410                 sfc_err(sa, "RSS is not configured");
1411                 return -EINVAL;
1412         }
1413
1414         if ((rss_conf->rss_key != NULL) &&
1415             (rss_conf->rss_key_len != sizeof(rss->key))) {
1416                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1417                         sizeof(rss->key));
1418                 return -EINVAL;
1419         }
1420
1421         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1422                 sfc_err(sa, "unsupported hash functions requested");
1423                 return -EINVAL;
1424         }
1425
1426         sfc_adapter_lock(sa);
1427
1428         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1429
1430         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1431                                    EFX_RX_HASHALG_TOEPLITZ,
1432                                    efx_hash_types, B_TRUE);
1433         if (rc != 0)
1434                 goto fail_scale_mode_set;
1435
1436         if (rss_conf->rss_key != NULL) {
1437                 if (sa->state == SFC_ADAPTER_STARTED) {
1438                         rc = efx_rx_scale_key_set(sa->nic,
1439                                                   EFX_RSS_CONTEXT_DEFAULT,
1440                                                   rss_conf->rss_key,
1441                                                   sizeof(rss->key));
1442                         if (rc != 0)
1443                                 goto fail_scale_key_set;
1444                 }
1445
1446                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1447         }
1448
1449         rss->hash_types = efx_hash_types;
1450
1451         sfc_adapter_unlock(sa);
1452
1453         return 0;
1454
1455 fail_scale_key_set:
1456         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1457                                   EFX_RX_HASHALG_TOEPLITZ,
1458                                   rss->hash_types, B_TRUE) != 0)
1459                 sfc_err(sa, "failed to restore RSS mode");
1460
1461 fail_scale_mode_set:
1462         sfc_adapter_unlock(sa);
1463         return -rc;
1464 }
1465
1466 static int
1467 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1468                        struct rte_eth_rss_reta_entry64 *reta_conf,
1469                        uint16_t reta_size)
1470 {
1471         struct sfc_adapter *sa = dev->data->dev_private;
1472         struct sfc_rss *rss = &sa->rss;
1473         struct sfc_port *port = &sa->port;
1474         int entry;
1475
1476         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || port->isolated)
1477                 return -ENOTSUP;
1478
1479         if (rss->channels == 0)
1480                 return -EINVAL;
1481
1482         if (reta_size != EFX_RSS_TBL_SIZE)
1483                 return -EINVAL;
1484
1485         sfc_adapter_lock(sa);
1486
1487         for (entry = 0; entry < reta_size; entry++) {
1488                 int grp = entry / RTE_RETA_GROUP_SIZE;
1489                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1490
1491                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1492                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1493         }
1494
1495         sfc_adapter_unlock(sa);
1496
1497         return 0;
1498 }
1499
1500 static int
1501 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1502                         struct rte_eth_rss_reta_entry64 *reta_conf,
1503                         uint16_t reta_size)
1504 {
1505         struct sfc_adapter *sa = dev->data->dev_private;
1506         struct sfc_rss *rss = &sa->rss;
1507         struct sfc_port *port = &sa->port;
1508         unsigned int *rss_tbl_new;
1509         uint16_t entry;
1510         int rc = 0;
1511
1512
1513         if (port->isolated)
1514                 return -ENOTSUP;
1515
1516         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1517                 sfc_err(sa, "RSS is not available");
1518                 return -ENOTSUP;
1519         }
1520
1521         if (rss->channels == 0) {
1522                 sfc_err(sa, "RSS is not configured");
1523                 return -EINVAL;
1524         }
1525
1526         if (reta_size != EFX_RSS_TBL_SIZE) {
1527                 sfc_err(sa, "RETA size is wrong (should be %u)",
1528                         EFX_RSS_TBL_SIZE);
1529                 return -EINVAL;
1530         }
1531
1532         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1533         if (rss_tbl_new == NULL)
1534                 return -ENOMEM;
1535
1536         sfc_adapter_lock(sa);
1537
1538         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1539
1540         for (entry = 0; entry < reta_size; entry++) {
1541                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1542                 struct rte_eth_rss_reta_entry64 *grp;
1543
1544                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1545
1546                 if (grp->mask & (1ull << grp_idx)) {
1547                         if (grp->reta[grp_idx] >= rss->channels) {
1548                                 rc = EINVAL;
1549                                 goto bad_reta_entry;
1550                         }
1551                         rss_tbl_new[entry] = grp->reta[grp_idx];
1552                 }
1553         }
1554
1555         if (sa->state == SFC_ADAPTER_STARTED) {
1556                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1557                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1558                 if (rc != 0)
1559                         goto fail_scale_tbl_set;
1560         }
1561
1562         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1563
1564 fail_scale_tbl_set:
1565 bad_reta_entry:
1566         sfc_adapter_unlock(sa);
1567
1568         rte_free(rss_tbl_new);
1569
1570         SFC_ASSERT(rc >= 0);
1571         return -rc;
1572 }
1573
1574 static int
1575 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1576                     enum rte_filter_op filter_op,
1577                     void *arg)
1578 {
1579         struct sfc_adapter *sa = dev->data->dev_private;
1580         int rc = ENOTSUP;
1581
1582         sfc_log_init(sa, "entry");
1583
1584         switch (filter_type) {
1585         case RTE_ETH_FILTER_NONE:
1586                 sfc_err(sa, "Global filters configuration not supported");
1587                 break;
1588         case RTE_ETH_FILTER_MACVLAN:
1589                 sfc_err(sa, "MACVLAN filters not supported");
1590                 break;
1591         case RTE_ETH_FILTER_ETHERTYPE:
1592                 sfc_err(sa, "EtherType filters not supported");
1593                 break;
1594         case RTE_ETH_FILTER_FLEXIBLE:
1595                 sfc_err(sa, "Flexible filters not supported");
1596                 break;
1597         case RTE_ETH_FILTER_SYN:
1598                 sfc_err(sa, "SYN filters not supported");
1599                 break;
1600         case RTE_ETH_FILTER_NTUPLE:
1601                 sfc_err(sa, "NTUPLE filters not supported");
1602                 break;
1603         case RTE_ETH_FILTER_TUNNEL:
1604                 sfc_err(sa, "Tunnel filters not supported");
1605                 break;
1606         case RTE_ETH_FILTER_FDIR:
1607                 sfc_err(sa, "Flow Director filters not supported");
1608                 break;
1609         case RTE_ETH_FILTER_HASH:
1610                 sfc_err(sa, "Hash filters not supported");
1611                 break;
1612         case RTE_ETH_FILTER_GENERIC:
1613                 if (filter_op != RTE_ETH_FILTER_GET) {
1614                         rc = EINVAL;
1615                 } else {
1616                         *(const void **)arg = &sfc_flow_ops;
1617                         rc = 0;
1618                 }
1619                 break;
1620         default:
1621                 sfc_err(sa, "Unknown filter type %u", filter_type);
1622                 break;
1623         }
1624
1625         sfc_log_init(sa, "exit: %d", -rc);
1626         SFC_ASSERT(rc >= 0);
1627         return -rc;
1628 }
1629
1630 static const struct eth_dev_ops sfc_eth_dev_ops = {
1631         .dev_configure                  = sfc_dev_configure,
1632         .dev_start                      = sfc_dev_start,
1633         .dev_stop                       = sfc_dev_stop,
1634         .dev_set_link_up                = sfc_dev_set_link_up,
1635         .dev_set_link_down              = sfc_dev_set_link_down,
1636         .dev_close                      = sfc_dev_close,
1637         .promiscuous_enable             = sfc_dev_promisc_enable,
1638         .promiscuous_disable            = sfc_dev_promisc_disable,
1639         .allmulticast_enable            = sfc_dev_allmulti_enable,
1640         .allmulticast_disable           = sfc_dev_allmulti_disable,
1641         .link_update                    = sfc_dev_link_update,
1642         .stats_get                      = sfc_stats_get,
1643         .stats_reset                    = sfc_stats_reset,
1644         .xstats_get                     = sfc_xstats_get,
1645         .xstats_reset                   = sfc_stats_reset,
1646         .xstats_get_names               = sfc_xstats_get_names,
1647         .dev_infos_get                  = sfc_dev_infos_get,
1648         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1649         .mtu_set                        = sfc_dev_set_mtu,
1650         .rx_queue_start                 = sfc_rx_queue_start,
1651         .rx_queue_stop                  = sfc_rx_queue_stop,
1652         .tx_queue_start                 = sfc_tx_queue_start,
1653         .tx_queue_stop                  = sfc_tx_queue_stop,
1654         .rx_queue_setup                 = sfc_rx_queue_setup,
1655         .rx_queue_release               = sfc_rx_queue_release,
1656         .rx_queue_count                 = sfc_rx_queue_count,
1657         .rx_descriptor_done             = sfc_rx_descriptor_done,
1658         .rx_descriptor_status           = sfc_rx_descriptor_status,
1659         .tx_descriptor_status           = sfc_tx_descriptor_status,
1660         .tx_queue_setup                 = sfc_tx_queue_setup,
1661         .tx_queue_release               = sfc_tx_queue_release,
1662         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1663         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1664         .mac_addr_set                   = sfc_mac_addr_set,
1665         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1666         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1667         .reta_update                    = sfc_dev_rss_reta_update,
1668         .reta_query                     = sfc_dev_rss_reta_query,
1669         .rss_hash_update                = sfc_dev_rss_hash_update,
1670         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1671         .filter_ctrl                    = sfc_dev_filter_ctrl,
1672         .set_mc_addr_list               = sfc_set_mc_addr_list,
1673         .rxq_info_get                   = sfc_rx_queue_info_get,
1674         .txq_info_get                   = sfc_tx_queue_info_get,
1675         .fw_version_get                 = sfc_fw_version_get,
1676         .xstats_get_by_id               = sfc_xstats_get_by_id,
1677         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1678 };
1679
1680 /**
1681  * Duplicate a string in potentially shared memory required for
1682  * multi-process support.
1683  *
1684  * strdup() allocates from process-local heap/memory.
1685  */
1686 static char *
1687 sfc_strdup(const char *str)
1688 {
1689         size_t size;
1690         char *copy;
1691
1692         if (str == NULL)
1693                 return NULL;
1694
1695         size = strlen(str) + 1;
1696         copy = rte_malloc(__func__, size, 0);
1697         if (copy != NULL)
1698                 rte_memcpy(copy, str, size);
1699
1700         return copy;
1701 }
1702
1703 static int
1704 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1705 {
1706         struct sfc_adapter *sa = dev->data->dev_private;
1707         unsigned int avail_caps = 0;
1708         const char *rx_name = NULL;
1709         const char *tx_name = NULL;
1710         int rc;
1711
1712         switch (sa->family) {
1713         case EFX_FAMILY_HUNTINGTON:
1714         case EFX_FAMILY_MEDFORD:
1715         case EFX_FAMILY_MEDFORD2:
1716                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1717                 break;
1718         default:
1719                 break;
1720         }
1721
1722         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1723                                 sfc_kvarg_string_handler, &rx_name);
1724         if (rc != 0)
1725                 goto fail_kvarg_rx_datapath;
1726
1727         if (rx_name != NULL) {
1728                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1729                 if (sa->dp_rx == NULL) {
1730                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1731                         rc = ENOENT;
1732                         goto fail_dp_rx;
1733                 }
1734                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1735                         sfc_err(sa,
1736                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1737                                 rx_name);
1738                         rc = EINVAL;
1739                         goto fail_dp_rx_caps;
1740                 }
1741         } else {
1742                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1743                 if (sa->dp_rx == NULL) {
1744                         sfc_err(sa, "Rx datapath by caps %#x not found",
1745                                 avail_caps);
1746                         rc = ENOENT;
1747                         goto fail_dp_rx;
1748                 }
1749         }
1750
1751         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1752         if (sa->dp_rx_name == NULL) {
1753                 rc = ENOMEM;
1754                 goto fail_dp_rx_name;
1755         }
1756
1757         sfc_notice(sa, "use %s Rx datapath", sa->dp_rx_name);
1758
1759         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1760
1761         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1762                                 sfc_kvarg_string_handler, &tx_name);
1763         if (rc != 0)
1764                 goto fail_kvarg_tx_datapath;
1765
1766         if (tx_name != NULL) {
1767                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1768                 if (sa->dp_tx == NULL) {
1769                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1770                         rc = ENOENT;
1771                         goto fail_dp_tx;
1772                 }
1773                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1774                         sfc_err(sa,
1775                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1776                                 tx_name);
1777                         rc = EINVAL;
1778                         goto fail_dp_tx_caps;
1779                 }
1780         } else {
1781                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1782                 if (sa->dp_tx == NULL) {
1783                         sfc_err(sa, "Tx datapath by caps %#x not found",
1784                                 avail_caps);
1785                         rc = ENOENT;
1786                         goto fail_dp_tx;
1787                 }
1788         }
1789
1790         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1791         if (sa->dp_tx_name == NULL) {
1792                 rc = ENOMEM;
1793                 goto fail_dp_tx_name;
1794         }
1795
1796         sfc_notice(sa, "use %s Tx datapath", sa->dp_tx_name);
1797
1798         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1799
1800         dev->dev_ops = &sfc_eth_dev_ops;
1801
1802         return 0;
1803
1804 fail_dp_tx_name:
1805 fail_dp_tx_caps:
1806         sa->dp_tx = NULL;
1807
1808 fail_dp_tx:
1809 fail_kvarg_tx_datapath:
1810         rte_free(sa->dp_rx_name);
1811         sa->dp_rx_name = NULL;
1812
1813 fail_dp_rx_name:
1814 fail_dp_rx_caps:
1815         sa->dp_rx = NULL;
1816
1817 fail_dp_rx:
1818 fail_kvarg_rx_datapath:
1819         return rc;
1820 }
1821
1822 static void
1823 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1824 {
1825         struct sfc_adapter *sa = dev->data->dev_private;
1826
1827         dev->dev_ops = NULL;
1828         dev->rx_pkt_burst = NULL;
1829         dev->tx_pkt_burst = NULL;
1830
1831         rte_free(sa->dp_tx_name);
1832         sa->dp_tx_name = NULL;
1833         sa->dp_tx = NULL;
1834
1835         rte_free(sa->dp_rx_name);
1836         sa->dp_rx_name = NULL;
1837         sa->dp_rx = NULL;
1838 }
1839
1840 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1841         .rxq_info_get                   = sfc_rx_queue_info_get,
1842         .txq_info_get                   = sfc_tx_queue_info_get,
1843 };
1844
1845 static int
1846 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1847 {
1848         /*
1849          * Device private data has really many process-local pointers.
1850          * Below code should be extremely careful to use data located
1851          * in shared memory only.
1852          */
1853         struct sfc_adapter *sa = dev->data->dev_private;
1854         const struct sfc_dp_rx *dp_rx;
1855         const struct sfc_dp_tx *dp_tx;
1856         int rc;
1857
1858         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1859         if (dp_rx == NULL) {
1860                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1861                 rc = ENOENT;
1862                 goto fail_dp_rx;
1863         }
1864         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1865                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1866                         sa->dp_tx_name);
1867                 rc = EINVAL;
1868                 goto fail_dp_rx_multi_process;
1869         }
1870
1871         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1872         if (dp_tx == NULL) {
1873                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1874                 rc = ENOENT;
1875                 goto fail_dp_tx;
1876         }
1877         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1878                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1879                         sa->dp_tx_name);
1880                 rc = EINVAL;
1881                 goto fail_dp_tx_multi_process;
1882         }
1883
1884         dev->rx_pkt_burst = dp_rx->pkt_burst;
1885         dev->tx_pkt_burst = dp_tx->pkt_burst;
1886         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1887
1888         return 0;
1889
1890 fail_dp_tx_multi_process:
1891 fail_dp_tx:
1892 fail_dp_rx_multi_process:
1893 fail_dp_rx:
1894         return rc;
1895 }
1896
1897 static void
1898 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1899 {
1900         dev->dev_ops = NULL;
1901         dev->tx_pkt_burst = NULL;
1902         dev->rx_pkt_burst = NULL;
1903 }
1904
1905 static void
1906 sfc_register_dp(void)
1907 {
1908         /* Register once */
1909         if (TAILQ_EMPTY(&sfc_dp_head)) {
1910                 /* Prefer EF10 datapath */
1911                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1912                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1913
1914                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1915                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1916                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1917         }
1918 }
1919
1920 static int
1921 sfc_eth_dev_init(struct rte_eth_dev *dev)
1922 {
1923         struct sfc_adapter *sa = dev->data->dev_private;
1924         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1925         int rc;
1926         const efx_nic_cfg_t *encp;
1927         const struct ether_addr *from;
1928
1929         sfc_register_dp();
1930
1931         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1932                 return -sfc_eth_dev_secondary_set_ops(dev);
1933
1934         /* Required for logging */
1935         sa->pci_addr = pci_dev->addr;
1936         sa->port_id = dev->data->port_id;
1937
1938         sa->eth_dev = dev;
1939
1940         /* Copy PCI device info to the dev->data */
1941         rte_eth_copy_pci_info(dev, pci_dev);
1942
1943         sa->logtype_main = sfc_register_logtype(sa, SFC_LOGTYPE_MAIN_STR,
1944                                                 RTE_LOG_NOTICE);
1945
1946         rc = sfc_kvargs_parse(sa);
1947         if (rc != 0)
1948                 goto fail_kvargs_parse;
1949
1950         sfc_log_init(sa, "entry");
1951
1952         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1953         if (dev->data->mac_addrs == NULL) {
1954                 rc = ENOMEM;
1955                 goto fail_mac_addrs;
1956         }
1957
1958         sfc_adapter_lock_init(sa);
1959         sfc_adapter_lock(sa);
1960
1961         sfc_log_init(sa, "probing");
1962         rc = sfc_probe(sa);
1963         if (rc != 0)
1964                 goto fail_probe;
1965
1966         sfc_log_init(sa, "set device ops");
1967         rc = sfc_eth_dev_set_ops(dev);
1968         if (rc != 0)
1969                 goto fail_set_ops;
1970
1971         sfc_log_init(sa, "attaching");
1972         rc = sfc_attach(sa);
1973         if (rc != 0)
1974                 goto fail_attach;
1975
1976         encp = efx_nic_cfg_get(sa->nic);
1977
1978         /*
1979          * The arguments are really reverse order in comparison to
1980          * Linux kernel. Copy from NIC config to Ethernet device data.
1981          */
1982         from = (const struct ether_addr *)(encp->enc_mac_addr);
1983         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1984
1985         sfc_adapter_unlock(sa);
1986
1987         sfc_log_init(sa, "done");
1988         return 0;
1989
1990 fail_attach:
1991         sfc_eth_dev_clear_ops(dev);
1992
1993 fail_set_ops:
1994         sfc_unprobe(sa);
1995
1996 fail_probe:
1997         sfc_adapter_unlock(sa);
1998         sfc_adapter_lock_fini(sa);
1999         rte_free(dev->data->mac_addrs);
2000         dev->data->mac_addrs = NULL;
2001
2002 fail_mac_addrs:
2003         sfc_kvargs_cleanup(sa);
2004
2005 fail_kvargs_parse:
2006         sfc_log_init(sa, "failed %d", rc);
2007         SFC_ASSERT(rc > 0);
2008         return -rc;
2009 }
2010
2011 static int
2012 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2013 {
2014         struct sfc_adapter *sa;
2015
2016         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2017                 sfc_eth_dev_secondary_clear_ops(dev);
2018                 return 0;
2019         }
2020
2021         sa = dev->data->dev_private;
2022         sfc_log_init(sa, "entry");
2023
2024         sfc_adapter_lock(sa);
2025
2026         sfc_eth_dev_clear_ops(dev);
2027
2028         sfc_detach(sa);
2029         sfc_unprobe(sa);
2030
2031         rte_free(dev->data->mac_addrs);
2032         dev->data->mac_addrs = NULL;
2033
2034         sfc_kvargs_cleanup(sa);
2035
2036         sfc_adapter_unlock(sa);
2037         sfc_adapter_lock_fini(sa);
2038
2039         sfc_log_init(sa, "done");
2040
2041         /* Required for logging, so cleanup last */
2042         sa->eth_dev = NULL;
2043         return 0;
2044 }
2045
2046 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2047         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2048         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2049         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2050         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2051         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2052         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2053         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2054         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2055         { .vendor_id = 0 /* sentinel */ }
2056 };
2057
2058 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2059         struct rte_pci_device *pci_dev)
2060 {
2061         return rte_eth_dev_pci_generic_probe(pci_dev,
2062                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2063 }
2064
2065 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2066 {
2067         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2068 }
2069
2070 static struct rte_pci_driver sfc_efx_pmd = {
2071         .id_table = pci_id_sfc_efx_map,
2072         .drv_flags =
2073                 RTE_PCI_DRV_INTR_LSC |
2074                 RTE_PCI_DRV_NEED_MAPPING,
2075         .probe = sfc_eth_dev_pci_probe,
2076         .remove = sfc_eth_dev_pci_remove,
2077 };
2078
2079 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2080 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2081 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2082 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2083         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2084         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2085         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2086         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2087         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2088
2089 RTE_INIT(sfc_driver_register_logtype);
2090 static void
2091 sfc_driver_register_logtype(void)
2092 {
2093         int ret;
2094
2095         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2096                                                    RTE_LOG_NOTICE);
2097         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2098 }