drivers/net/sfc/sfc_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  * Copyright (c) 2016-2017 Solarflare Communications Inc.
   5  * All rights reserved.
   6  *
   7  * This software was jointly developed between OKTET Labs (under contract
   8  * for Solarflare) and Solarflare Communications, Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright notice,
  16  *    this list of conditions and the following disclaimer in the documentation
  17  *    and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  29  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <rte_dev.h>
  33 #include <rte_ethdev.h>
  34 #include <rte_ethdev_pci.h>
  35 #include <rte_pci.h>
  36 #include <rte_bus_pci.h>
  37 #include <rte_errno.h>
  38 #include <rte_string_fns.h>
  39
  40 #include "efx.h"
  41
  42 #include "sfc.h"
  43 #include "sfc_debug.h"
  44 #include "sfc_log.h"
  45 #include "sfc_kvargs.h"
  46 #include "sfc_ev.h"
  47 #include "sfc_rx.h"
  48 #include "sfc_tx.h"
  49 #include "sfc_flow.h"
  50 #include "sfc_dp.h"
  51 #include "sfc_dp_rx.h"
  52
  53 static struct sfc_dp_list sfc_dp_head =
  54         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  55
  56 static int
  57 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  58 {
  59         struct sfc_adapter *sa = dev->data->dev_private;
  60         efx_nic_fw_info_t enfi;
  61         int ret;
  62         int rc;
  63
  64         /*
  65          * Return value of the callback is likely supposed to be
  66          * equal to or greater than 0, nevertheless, if an error
  67          * occurs, it will be desirable to pass it to the caller
  68          */
  69         if ((fw_version == NULL) || (fw_size == 0))
  70                 return -EINVAL;
  71
  72         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  73         if (rc != 0)
  74                 return -rc;
  75
  76         ret = snprintf(fw_version, fw_size,
  77                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  78                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  79                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  80         if (ret < 0)
  81                 return ret;
  82
  83         if (enfi.enfi_dpcpu_fw_ids_valid) {
  84                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  85                 int ret_extra;
  86
  87                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  88                                      fw_size - dpcpu_fw_ids_offset,
  89                                      " rx%" PRIx16 " tx%" PRIx16,
  90                                      enfi.enfi_rx_dpcpu_fw_id,
  91                                      enfi.enfi_tx_dpcpu_fw_id);
  92                 if (ret_extra < 0)
  93                         return ret_extra;
  94
  95                 ret += ret_extra;
  96         }
  97
  98         if (fw_size < (size_t)(++ret))
  99                 return ret;
 100         else
 101                 return 0;
 102 }
 103
 104 static void
 105 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 106 {
 107         struct sfc_adapter *sa = dev->data->dev_private;
 108         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 109
 110         sfc_log_init(sa, "entry");
 111
 112         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 113         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 114
 115         /* Autonegotiation may be disabled */
 116         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 117         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 118                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 119         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 120                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 121         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 122                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 123
 124         dev_info->max_rx_queues = sa->rxq_max;
 125         dev_info->max_tx_queues = sa->txq_max;
 126
 127         /* By default packets are dropped if no descriptors are available */
 128         dev_info->default_rxconf.rx_drop_en = 1;
 129
 130         dev_info->rx_offload_capa =
 131                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 132                 DEV_RX_OFFLOAD_UDP_CKSUM |
 133                 DEV_RX_OFFLOAD_TCP_CKSUM;
 134
 135         dev_info->tx_offload_capa =
 136                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 137                 DEV_TX_OFFLOAD_UDP_CKSUM |
 138                 DEV_TX_OFFLOAD_TCP_CKSUM;
 139
 140         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 141         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 142             !encp->enc_hw_tx_insert_vlan_enabled)
 143                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 144         else
 145                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 146
 147         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 148                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 149
 150         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
 151                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
 152
 153         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
 154                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
 155
 156 #if EFSYS_OPT_RX_SCALE
 157         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 158                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 159                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 160                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 161         }
 162 #endif
 163
 164         if (sa->tso)
 165                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 166
 167         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 168         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 169         /* The RXQ hardware requires that the descriptor count is a power
 170          * of 2, but rx_desc_lim cannot properly describe that constraint.
 171          */
 172         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 173
 174         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 175         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 176         /*
 177          * The TXQ hardware requires that the descriptor count is a power
 178          * of 2, but tx_desc_lim cannot properly describe that constraint
 179          */
 180         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 181 }
 182
 183 static const uint32_t *
 184 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 185 {
 186         struct sfc_adapter *sa = dev->data->dev_private;
 187
 188         return sa->dp_rx->supported_ptypes_get();
 189 }
 190
 191 static int
 192 sfc_dev_configure(struct rte_eth_dev *dev)
 193 {
 194         struct rte_eth_dev_data *dev_data = dev->data;
 195         struct sfc_adapter *sa = dev_data->dev_private;
 196         int rc;
 197
 198         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 199                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 200
 201         sfc_adapter_lock(sa);
 202         switch (sa->state) {
 203         case SFC_ADAPTER_CONFIGURED:
 204                 /* FALLTHROUGH */
 205         case SFC_ADAPTER_INITIALIZED:
 206                 rc = sfc_configure(sa);
 207                 break;
 208         default:
 209                 sfc_err(sa, "unexpected adapter state %u to configure",
 210                         sa->state);
 211                 rc = EINVAL;
 212                 break;
 213         }
 214         sfc_adapter_unlock(sa);
 215
 216         sfc_log_init(sa, "done %d", rc);
 217         SFC_ASSERT(rc >= 0);
 218         return -rc;
 219 }
 220
 221 static int
 222 sfc_dev_start(struct rte_eth_dev *dev)
 223 {
 224         struct sfc_adapter *sa = dev->data->dev_private;
 225         int rc;
 226
 227         sfc_log_init(sa, "entry");
 228
 229         sfc_adapter_lock(sa);
 230         rc = sfc_start(sa);
 231         sfc_adapter_unlock(sa);
 232
 233         sfc_log_init(sa, "done %d", rc);
 234         SFC_ASSERT(rc >= 0);
 235         return -rc;
 236 }
 237
 238 static int
 239 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 240 {
 241         struct sfc_adapter *sa = dev->data->dev_private;
 242         struct rte_eth_link *dev_link = &dev->data->dev_link;
 243         struct rte_eth_link old_link;
 244         struct rte_eth_link current_link;
 245
 246         sfc_log_init(sa, "entry");
 247
 248 retry:
 249         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 250         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 251
 252         if (sa->state != SFC_ADAPTER_STARTED) {
 253                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 254                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 255                                          *(uint64_t *)&old_link,
 256                                          *(uint64_t *)&current_link))
 257                         goto retry;
 258         } else if (wait_to_complete) {
 259                 efx_link_mode_t link_mode;
 260
 261                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 262                         link_mode = EFX_LINK_UNKNOWN;
 263                 sfc_port_link_mode_to_info(link_mode, &current_link);
 264
 265                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 266                                          *(uint64_t *)&old_link,
 267                                          *(uint64_t *)&current_link))
 268                         goto retry;
 269         } else {
 270                 sfc_ev_mgmt_qpoll(sa);
 271                 *(int64_t *)&current_link =
 272                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 273         }
 274
 275         if (old_link.link_status != current_link.link_status)
 276                 sfc_info(sa, "Link status is %s",
 277                          current_link.link_status ? "UP" : "DOWN");
 278
 279         return old_link.link_status == current_link.link_status ? 0 : -1;
 280 }
 281
 282 static void
 283 sfc_dev_stop(struct rte_eth_dev *dev)
 284 {
 285         struct sfc_adapter *sa = dev->data->dev_private;
 286
 287         sfc_log_init(sa, "entry");
 288
 289         sfc_adapter_lock(sa);
 290         sfc_stop(sa);
 291         sfc_adapter_unlock(sa);
 292
 293         sfc_log_init(sa, "done");
 294 }
 295
 296 static int
 297 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 298 {
 299         struct sfc_adapter *sa = dev->data->dev_private;
 300         int rc;
 301
 302         sfc_log_init(sa, "entry");
 303
 304         sfc_adapter_lock(sa);
 305         rc = sfc_start(sa);
 306         sfc_adapter_unlock(sa);
 307
 308         SFC_ASSERT(rc >= 0);
 309         return -rc;
 310 }
 311
 312 static int
 313 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 314 {
 315         struct sfc_adapter *sa = dev->data->dev_private;
 316
 317         sfc_log_init(sa, "entry");
 318
 319         sfc_adapter_lock(sa);
 320         sfc_stop(sa);
 321         sfc_adapter_unlock(sa);
 322
 323         return 0;
 324 }
 325
 326 static void
 327 sfc_dev_close(struct rte_eth_dev *dev)
 328 {
 329         struct sfc_adapter *sa = dev->data->dev_private;
 330
 331         sfc_log_init(sa, "entry");
 332
 333         sfc_adapter_lock(sa);
 334         switch (sa->state) {
 335         case SFC_ADAPTER_STARTED:
 336                 sfc_stop(sa);
 337                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 338                 /* FALLTHROUGH */
 339         case SFC_ADAPTER_CONFIGURED:
 340                 sfc_close(sa);
 341                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 342                 /* FALLTHROUGH */
 343         case SFC_ADAPTER_INITIALIZED:
 344                 break;
 345         default:
 346                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 347                 break;
 348         }
 349         sfc_adapter_unlock(sa);
 350
 351         sfc_log_init(sa, "done");
 352 }
 353
 354 static void
 355 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 356                    boolean_t enabled)
 357 {
 358         struct sfc_port *port;
 359         boolean_t *toggle;
 360         struct sfc_adapter *sa = dev->data->dev_private;
 361         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 362         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 363
 364         sfc_adapter_lock(sa);
 365
 366         port = &sa->port;
 367         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 368
 369         if (*toggle != enabled) {
 370                 *toggle = enabled;
 371
 372                 if (port->isolated) {
 373                         sfc_warn(sa, "isolated mode is active on the port");
 374                         sfc_warn(sa, "the change is to be applied on the next "
 375                                      "start provided that isolated mode is "
 376                                      "disabled prior the next start");
 377                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 378                            (sfc_set_rx_mode(sa) != 0)) {
 379                         *toggle = !(enabled);
 380                         sfc_warn(sa, "Failed to %s %s mode",
 381                                  ((enabled) ? "enable" : "disable"), desc);
 382                 }
 383         }
 384
 385         sfc_adapter_unlock(sa);
 386 }
 387
 388 static void
 389 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 390 {
 391         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 392 }
 393
 394 static void
 395 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 396 {
 397         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 398 }
 399
 400 static void
 401 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 402 {
 403         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 404 }
 405
 406 static void
 407 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 408 {
 409         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 410 }
 411
 412 static int
 413 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 414                    uint16_t nb_rx_desc, unsigned int socket_id,
 415                    const struct rte_eth_rxconf *rx_conf,
 416                    struct rte_mempool *mb_pool)
 417 {
 418         struct sfc_adapter *sa = dev->data->dev_private;
 419         int rc;
 420
 421         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 422                      rx_queue_id, nb_rx_desc, socket_id);
 423
 424         sfc_adapter_lock(sa);
 425
 426         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 427                           rx_conf, mb_pool);
 428         if (rc != 0)
 429                 goto fail_rx_qinit;
 430
 431         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 432
 433         sfc_adapter_unlock(sa);
 434
 435         return 0;
 436
 437 fail_rx_qinit:
 438         sfc_adapter_unlock(sa);
 439         SFC_ASSERT(rc > 0);
 440         return -rc;
 441 }
 442
 443 static void
 444 sfc_rx_queue_release(void *queue)
 445 {
 446         struct sfc_dp_rxq *dp_rxq = queue;
 447         struct sfc_rxq *rxq;
 448         struct sfc_adapter *sa;
 449         unsigned int sw_index;
 450
 451         if (dp_rxq == NULL)
 452                 return;
 453
 454         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 455         sa = rxq->evq->sa;
 456         sfc_adapter_lock(sa);
 457
 458         sw_index = sfc_rxq_sw_index(rxq);
 459
 460         sfc_log_init(sa, "RxQ=%u", sw_index);
 461
 462         sfc_rx_qfini(sa, sw_index);
 463
 464         sfc_adapter_unlock(sa);
 465 }
 466
 467 static int
 468 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 469                    uint16_t nb_tx_desc, unsigned int socket_id,
 470                    const struct rte_eth_txconf *tx_conf)
 471 {
 472         struct sfc_adapter *sa = dev->data->dev_private;
 473         int rc;
 474
 475         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 476                      tx_queue_id, nb_tx_desc, socket_id);
 477
 478         sfc_adapter_lock(sa);
 479
 480         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 481         if (rc != 0)
 482                 goto fail_tx_qinit;
 483
 484         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 485
 486         sfc_adapter_unlock(sa);
 487         return 0;
 488
 489 fail_tx_qinit:
 490         sfc_adapter_unlock(sa);
 491         SFC_ASSERT(rc > 0);
 492         return -rc;
 493 }
 494
 495 static void
 496 sfc_tx_queue_release(void *queue)
 497 {
 498         struct sfc_dp_txq *dp_txq = queue;
 499         struct sfc_txq *txq;
 500         unsigned int sw_index;
 501         struct sfc_adapter *sa;
 502
 503         if (dp_txq == NULL)
 504                 return;
 505
 506         txq = sfc_txq_by_dp_txq(dp_txq);
 507         sw_index = sfc_txq_sw_index(txq);
 508
 509         SFC_ASSERT(txq->evq != NULL);
 510         sa = txq->evq->sa;
 511
 512         sfc_log_init(sa, "TxQ = %u", sw_index);
 513
 514         sfc_adapter_lock(sa);
 515
 516         sfc_tx_qfini(sa, sw_index);
 517
 518         sfc_adapter_unlock(sa);
 519 }
 520
 521 static int
 522 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 523 {
 524         struct sfc_adapter *sa = dev->data->dev_private;
 525         struct sfc_port *port = &sa->port;
 526         uint64_t *mac_stats;
 527         int ret;
 528
 529         rte_spinlock_lock(&port->mac_stats_lock);
 530
 531         ret = sfc_port_update_mac_stats(sa);
 532         if (ret != 0)
 533                 goto unlock;
 534
 535         mac_stats = port->mac_stats_buf;
 536
 537         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 538                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 539                 stats->ipackets =
 540                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 541                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 542                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 543                 stats->opackets =
 544                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 545                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 546                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 547                 stats->ibytes =
 548                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 549                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 550                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 551                 stats->obytes =
 552                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 553                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 554                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 555                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 556                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 557                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 558         } else {
 559                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 560                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 561                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 562                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 563                 /*
 564                  * Take into account stats which are whenever supported
 565                  * on EF10. If some stat is not supported by current
 566                  * firmware variant or HW revision, it is guaranteed
 567                  * to be zero in mac_stats.
 568                  */
 569                 stats->imissed =
 570                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 571                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 572                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 573                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 574                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 575                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 576                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 577                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 578                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 579                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 580                 stats->ierrors =
 581                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 582                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 583                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 584                 /* no oerrors counters supported on EF10 */
 585         }
 586
 587 unlock:
 588         rte_spinlock_unlock(&port->mac_stats_lock);
 589         SFC_ASSERT(ret >= 0);
 590         return -ret;
 591 }
 592
 593 static void
 594 sfc_stats_reset(struct rte_eth_dev *dev)
 595 {
 596         struct sfc_adapter *sa = dev->data->dev_private;
 597         struct sfc_port *port = &sa->port;
 598         int rc;
 599
 600         if (sa->state != SFC_ADAPTER_STARTED) {
 601                 /*
 602                  * The operation cannot be done if port is not started; it
 603                  * will be scheduled to be done during the next port start
 604                  */
 605                 port->mac_stats_reset_pending = B_TRUE;
 606                 return;
 607         }
 608
 609         rc = sfc_port_reset_mac_stats(sa);
 610         if (rc != 0)
 611                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 612 }
 613
 614 static int
 615 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 616                unsigned int xstats_count)
 617 {
 618         struct sfc_adapter *sa = dev->data->dev_private;
 619         struct sfc_port *port = &sa->port;
 620         uint64_t *mac_stats;
 621         int rc;
 622         unsigned int i;
 623         int nstats = 0;
 624
 625         rte_spinlock_lock(&port->mac_stats_lock);
 626
 627         rc = sfc_port_update_mac_stats(sa);
 628         if (rc != 0) {
 629                 SFC_ASSERT(rc > 0);
 630                 nstats = -rc;
 631                 goto unlock;
 632         }
 633
 634         mac_stats = port->mac_stats_buf;
 635
 636         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 637                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 638                         if (xstats != NULL && nstats < (int)xstats_count) {
 639                                 xstats[nstats].id = nstats;
 640                                 xstats[nstats].value = mac_stats[i];
 641                         }
 642                         nstats++;
 643                 }
 644         }
 645
 646 unlock:
 647         rte_spinlock_unlock(&port->mac_stats_lock);
 648
 649         return nstats;
 650 }
 651
 652 static int
 653 sfc_xstats_get_names(struct rte_eth_dev *dev,
 654                      struct rte_eth_xstat_name *xstats_names,
 655                      unsigned int xstats_count)
 656 {
 657         struct sfc_adapter *sa = dev->data->dev_private;
 658         struct sfc_port *port = &sa->port;
 659         unsigned int i;
 660         unsigned int nstats = 0;
 661
 662         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 663                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 664                         if (xstats_names != NULL && nstats < xstats_count)
 665                                 strlcpy(xstats_names[nstats].name,
 666                                         efx_mac_stat_name(sa->nic, i),
 667                                         sizeof(xstats_names[0].name));
 668                         nstats++;
 669                 }
 670         }
 671
 672         return nstats;
 673 }
 674
 675 static int
 676 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 677                      uint64_t *values, unsigned int n)
 678 {
 679         struct sfc_adapter *sa = dev->data->dev_private;
 680         struct sfc_port *port = &sa->port;
 681         uint64_t *mac_stats;
 682         unsigned int nb_supported = 0;
 683         unsigned int nb_written = 0;
 684         unsigned int i;
 685         int ret;
 686         int rc;
 687
 688         if (unlikely(values == NULL) ||
 689             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 690                 return port->mac_stats_nb_supported;
 691
 692         rte_spinlock_lock(&port->mac_stats_lock);
 693
 694         rc = sfc_port_update_mac_stats(sa);
 695         if (rc != 0) {
 696                 SFC_ASSERT(rc > 0);
 697                 ret = -rc;
 698                 goto unlock;
 699         }
 700
 701         mac_stats = port->mac_stats_buf;
 702
 703         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 704                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 705                         continue;
 706
 707                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 708                         values[nb_written++] = mac_stats[i];
 709
 710                 ++nb_supported;
 711         }
 712
 713         ret = nb_written;
 714
 715 unlock:
 716         rte_spinlock_unlock(&port->mac_stats_lock);
 717
 718         return ret;
 719 }
 720
 721 static int
 722 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 723                            struct rte_eth_xstat_name *xstats_names,
 724                            const uint64_t *ids, unsigned int size)
 725 {
 726         struct sfc_adapter *sa = dev->data->dev_private;
 727         struct sfc_port *port = &sa->port;
 728         unsigned int nb_supported = 0;
 729         unsigned int nb_written = 0;
 730         unsigned int i;
 731
 732         if (unlikely(xstats_names == NULL) ||
 733             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 734                 return port->mac_stats_nb_supported;
 735
 736         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 737                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 738                         continue;
 739
 740                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 741                         char *name = xstats_names[nb_written++].name;
 742
 743                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 744                                 sizeof(xstats_names[0].name));
 745                 }
 746
 747                 ++nb_supported;
 748         }
 749
 750         return nb_written;
 751 }
 752
 753 static int
 754 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 755 {
 756         struct sfc_adapter *sa = dev->data->dev_private;
 757         unsigned int wanted_fc, link_fc;
 758
 759         memset(fc_conf, 0, sizeof(*fc_conf));
 760
 761         sfc_adapter_lock(sa);
 762
 763         if (sa->state == SFC_ADAPTER_STARTED)
 764                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 765         else
 766                 link_fc = sa->port.flow_ctrl;
 767
 768         switch (link_fc) {
 769         case 0:
 770                 fc_conf->mode = RTE_FC_NONE;
 771                 break;
 772         case EFX_FCNTL_RESPOND:
 773                 fc_conf->mode = RTE_FC_RX_PAUSE;
 774                 break;
 775         case EFX_FCNTL_GENERATE:
 776                 fc_conf->mode = RTE_FC_TX_PAUSE;
 777                 break;
 778         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 779                 fc_conf->mode = RTE_FC_FULL;
 780                 break;
 781         default:
 782                 sfc_err(sa, "%s: unexpected flow control value %#x",
 783                         __func__, link_fc);
 784         }
 785
 786         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 787
 788         sfc_adapter_unlock(sa);
 789
 790         return 0;
 791 }
 792
 793 static int
 794 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 795 {
 796         struct sfc_adapter *sa = dev->data->dev_private;
 797         struct sfc_port *port = &sa->port;
 798         unsigned int fcntl;
 799         int rc;
 800
 801         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 802             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 803             fc_conf->mac_ctrl_frame_fwd != 0) {
 804                 sfc_err(sa, "unsupported flow control settings specified");
 805                 rc = EINVAL;
 806                 goto fail_inval;
 807         }
 808
 809         switch (fc_conf->mode) {
 810         case RTE_FC_NONE:
 811                 fcntl = 0;
 812                 break;
 813         case RTE_FC_RX_PAUSE:
 814                 fcntl = EFX_FCNTL_RESPOND;
 815                 break;
 816         case RTE_FC_TX_PAUSE:
 817                 fcntl = EFX_FCNTL_GENERATE;
 818                 break;
 819         case RTE_FC_FULL:
 820                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 821                 break;
 822         default:
 823                 rc = EINVAL;
 824                 goto fail_inval;
 825         }
 826
 827         sfc_adapter_lock(sa);
 828
 829         if (sa->state == SFC_ADAPTER_STARTED) {
 830                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 831                 if (rc != 0)
 832                         goto fail_mac_fcntl_set;
 833         }
 834
 835         port->flow_ctrl = fcntl;
 836         port->flow_ctrl_autoneg = fc_conf->autoneg;
 837
 838         sfc_adapter_unlock(sa);
 839
 840         return 0;
 841
 842 fail_mac_fcntl_set:
 843         sfc_adapter_unlock(sa);
 844 fail_inval:
 845         SFC_ASSERT(rc > 0);
 846         return -rc;
 847 }
 848
 849 static int
 850 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 851 {
 852         struct sfc_adapter *sa = dev->data->dev_private;
 853         size_t pdu = EFX_MAC_PDU(mtu);
 854         size_t old_pdu;
 855         int rc;
 856
 857         sfc_log_init(sa, "mtu=%u", mtu);
 858
 859         rc = EINVAL;
 860         if (pdu < EFX_MAC_PDU_MIN) {
 861                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 862                         (unsigned int)mtu, (unsigned int)pdu,
 863                         EFX_MAC_PDU_MIN);
 864                 goto fail_inval;
 865         }
 866         if (pdu > EFX_MAC_PDU_MAX) {
 867                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 868                         (unsigned int)mtu, (unsigned int)pdu,
 869                         EFX_MAC_PDU_MAX);
 870                 goto fail_inval;
 871         }
 872
 873         sfc_adapter_lock(sa);
 874
 875         if (pdu != sa->port.pdu) {
 876                 if (sa->state == SFC_ADAPTER_STARTED) {
 877                         sfc_stop(sa);
 878
 879                         old_pdu = sa->port.pdu;
 880                         sa->port.pdu = pdu;
 881                         rc = sfc_start(sa);
 882                         if (rc != 0)
 883                                 goto fail_start;
 884                 } else {
 885                         sa->port.pdu = pdu;
 886                 }
 887         }
 888
 889         /*
 890          * The driver does not use it, but other PMDs update jumbo_frame
 891          * flag and max_rx_pkt_len when MTU is set.
 892          */
 893         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 894         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 895
 896         sfc_adapter_unlock(sa);
 897
 898         sfc_log_init(sa, "done");
 899         return 0;
 900
 901 fail_start:
 902         sa->port.pdu = old_pdu;
 903         if (sfc_start(sa) != 0)
 904                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 905                         "PDU max size - port is stopped",
 906                         (unsigned int)pdu, (unsigned int)old_pdu);
 907         sfc_adapter_unlock(sa);
 908
 909 fail_inval:
 910         sfc_log_init(sa, "failed %d", rc);
 911         SFC_ASSERT(rc > 0);
 912         return -rc;
 913 }
 914 static void
 915 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 916 {
 917         struct sfc_adapter *sa = dev->data->dev_private;
 918         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 919         struct sfc_port *port = &sa->port;
 920         int rc;
 921
 922         sfc_adapter_lock(sa);
 923
 924         /*
 925          * Copy the address to the device private data so that
 926          * it could be recalled in the case of adapter restart.
 927          */
 928         ether_addr_copy(mac_addr, &port->default_mac_addr);
 929
 930         if (port->isolated) {
 931                 sfc_err(sa, "isolated mode is active on the port");
 932                 sfc_err(sa, "will not set MAC address");
 933                 goto unlock;
 934         }
 935
 936         if (sa->state != SFC_ADAPTER_STARTED) {
 937                 sfc_info(sa, "the port is not started");
 938                 sfc_info(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         } else {
 959                 sfc_warn(sa, "cannot set MAC address with filters installed");
 960                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 961                 sfc_warn(sa, "(some traffic may be dropped)");
 962
 963                 /*
 964                  * Since setting MAC address with filters installed is not
 965                  * allowed on the adapter, the new MAC address will be set
 966                  * by means of adapter restart. sfc_start() shall retrieve
 967                  * the new address from the device private data and set it.
 968                  */
 969                 sfc_stop(sa);
 970                 rc = sfc_start(sa);
 971                 if (rc != 0)
 972                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 973         }
 974
 975 unlock:
 976         /*
 977          * In the case of failure sa->port->default_mac_addr does not
 978          * need rollback since no error code is returned, and the upper
 979          * API will anyway update the external MAC address storage.
 980          * To be consistent with that new value it is better to keep
 981          * the device private value the same.
 982          */
 983         sfc_adapter_unlock(sa);
 984 }
 985
 986
 987 static int
 988 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 989                      uint32_t nb_mc_addr)
 990 {
 991         struct sfc_adapter *sa = dev->data->dev_private;
 992         struct sfc_port *port = &sa->port;
 993         uint8_t *mc_addrs = port->mcast_addrs;
 994         int rc;
 995         unsigned int i;
 996
 997         if (port->isolated) {
 998                 sfc_err(sa, "isolated mode is active on the port");
 999                 sfc_err(sa, "will not set multicast address list");
1000                 return -ENOTSUP;
1001         }
1002
1003         if (mc_addrs == NULL)
1004                 return -ENOBUFS;
1005
1006         if (nb_mc_addr > port->max_mcast_addrs) {
1007                 sfc_err(sa, "too many multicast addresses: %u > %u",
1008                          nb_mc_addr, port->max_mcast_addrs);
1009                 return -EINVAL;
1010         }
1011
1012         for (i = 0; i < nb_mc_addr; ++i) {
1013                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1014                                  EFX_MAC_ADDR_LEN);
1015                 mc_addrs += EFX_MAC_ADDR_LEN;
1016         }
1017
1018         port->nb_mcast_addrs = nb_mc_addr;
1019
1020         if (sa->state != SFC_ADAPTER_STARTED)
1021                 return 0;
1022
1023         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1024                                         port->nb_mcast_addrs);
1025         if (rc != 0)
1026                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1027
1028         SFC_ASSERT(rc >= 0);
1029         return -rc;
1030 }
1031
1032 /*
1033  * The function is used by the secondary process as well. It must not
1034  * use any process-local pointers from the adapter data.
1035  */
1036 static void
1037 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1038                       struct rte_eth_rxq_info *qinfo)
1039 {
1040         struct sfc_adapter *sa = dev->data->dev_private;
1041         struct sfc_rxq_info *rxq_info;
1042         struct sfc_rxq *rxq;
1043
1044         sfc_adapter_lock(sa);
1045
1046         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1047
1048         rxq_info = &sa->rxq_info[rx_queue_id];
1049         rxq = rxq_info->rxq;
1050         SFC_ASSERT(rxq != NULL);
1051
1052         qinfo->mp = rxq->refill_mb_pool;
1053         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1054         qinfo->conf.rx_drop_en = 1;
1055         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1056         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
1057         qinfo->nb_desc = rxq_info->entries;
1058
1059         sfc_adapter_unlock(sa);
1060 }
1061
1062 /*
1063  * The function is used by the secondary process as well. It must not
1064  * use any process-local pointers from the adapter data.
1065  */
1066 static void
1067 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1068                       struct rte_eth_txq_info *qinfo)
1069 {
1070         struct sfc_adapter *sa = dev->data->dev_private;
1071         struct sfc_txq_info *txq_info;
1072
1073         sfc_adapter_lock(sa);
1074
1075         SFC_ASSERT(tx_queue_id < sa->txq_count);
1076
1077         txq_info = &sa->txq_info[tx_queue_id];
1078         SFC_ASSERT(txq_info->txq != NULL);
1079
1080         memset(qinfo, 0, sizeof(*qinfo));
1081
1082         qinfo->conf.txq_flags = txq_info->txq->flags;
1083         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1084         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1085         qinfo->nb_desc = txq_info->entries;
1086
1087         sfc_adapter_unlock(sa);
1088 }
1089
1090 static uint32_t
1091 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1092 {
1093         struct sfc_adapter *sa = dev->data->dev_private;
1094
1095         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1096
1097         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1098 }
1099
1100 static int
1101 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1102 {
1103         struct sfc_dp_rxq *dp_rxq = queue;
1104
1105         return sfc_rx_qdesc_done(dp_rxq, offset);
1106 }
1107
1108 static int
1109 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1110 {
1111         struct sfc_dp_rxq *dp_rxq = queue;
1112         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1113
1114         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1115 }
1116
1117 static int
1118 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1119 {
1120         struct sfc_dp_txq *dp_txq = queue;
1121         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1122
1123         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1124 }
1125
1126 static int
1127 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1128 {
1129         struct sfc_adapter *sa = dev->data->dev_private;
1130         int rc;
1131
1132         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1133
1134         sfc_adapter_lock(sa);
1135
1136         rc = EINVAL;
1137         if (sa->state != SFC_ADAPTER_STARTED)
1138                 goto fail_not_started;
1139
1140         rc = sfc_rx_qstart(sa, rx_queue_id);
1141         if (rc != 0)
1142                 goto fail_rx_qstart;
1143
1144         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1145
1146         sfc_adapter_unlock(sa);
1147
1148         return 0;
1149
1150 fail_rx_qstart:
1151 fail_not_started:
1152         sfc_adapter_unlock(sa);
1153         SFC_ASSERT(rc > 0);
1154         return -rc;
1155 }
1156
1157 static int
1158 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1159 {
1160         struct sfc_adapter *sa = dev->data->dev_private;
1161
1162         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1163
1164         sfc_adapter_lock(sa);
1165         sfc_rx_qstop(sa, rx_queue_id);
1166
1167         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1168
1169         sfc_adapter_unlock(sa);
1170
1171         return 0;
1172 }
1173
1174 static int
1175 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1176 {
1177         struct sfc_adapter *sa = dev->data->dev_private;
1178         int rc;
1179
1180         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1181
1182         sfc_adapter_lock(sa);
1183
1184         rc = EINVAL;
1185         if (sa->state != SFC_ADAPTER_STARTED)
1186                 goto fail_not_started;
1187
1188         rc = sfc_tx_qstart(sa, tx_queue_id);
1189         if (rc != 0)
1190                 goto fail_tx_qstart;
1191
1192         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1193
1194         sfc_adapter_unlock(sa);
1195         return 0;
1196
1197 fail_tx_qstart:
1198
1199 fail_not_started:
1200         sfc_adapter_unlock(sa);
1201         SFC_ASSERT(rc > 0);
1202         return -rc;
1203 }
1204
1205 static int
1206 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1207 {
1208         struct sfc_adapter *sa = dev->data->dev_private;
1209
1210         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1211
1212         sfc_adapter_lock(sa);
1213
1214         sfc_tx_qstop(sa, tx_queue_id);
1215
1216         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1217
1218         sfc_adapter_unlock(sa);
1219         return 0;
1220 }
1221
1222 #if EFSYS_OPT_RX_SCALE
1223 static int
1224 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1225                           struct rte_eth_rss_conf *rss_conf)
1226 {
1227         struct sfc_adapter *sa = dev->data->dev_private;
1228
1229         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)
1230                 return -ENOTSUP;
1231
1232         sfc_adapter_lock(sa);
1233
1234         /*
1235          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1236          * hence, conversion is done here to derive a correct set of ETH_RSS
1237          * flags which corresponds to the active EFX configuration stored
1238          * locally in 'sfc_adapter' and kept up-to-date
1239          */
1240         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1241         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1242         if (rss_conf->rss_key != NULL)
1243                 rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1244
1245         sfc_adapter_unlock(sa);
1246
1247         return 0;
1248 }
1249
1250 static int
1251 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1252                         struct rte_eth_rss_conf *rss_conf)
1253 {
1254         struct sfc_adapter *sa = dev->data->dev_private;
1255         struct sfc_port *port = &sa->port;
1256         unsigned int efx_hash_types;
1257         int rc = 0;
1258
1259         if (port->isolated)
1260                 return -ENOTSUP;
1261
1262         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1263                 sfc_err(sa, "RSS is not available");
1264                 return -ENOTSUP;
1265         }
1266
1267         if (sa->rss_channels == 0) {
1268                 sfc_err(sa, "RSS is not configured");
1269                 return -EINVAL;
1270         }
1271
1272         if ((rss_conf->rss_key != NULL) &&
1273             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1274                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1275                         sizeof(sa->rss_key));
1276                 return -EINVAL;
1277         }
1278
1279         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1280                 sfc_err(sa, "unsupported hash functions requested");
1281                 return -EINVAL;
1282         }
1283
1284         sfc_adapter_lock(sa);
1285
1286         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1287
1288         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1289                                    EFX_RX_HASHALG_TOEPLITZ,
1290                                    efx_hash_types, B_TRUE);
1291         if (rc != 0)
1292                 goto fail_scale_mode_set;
1293
1294         if (rss_conf->rss_key != NULL) {
1295                 if (sa->state == SFC_ADAPTER_STARTED) {
1296                         rc = efx_rx_scale_key_set(sa->nic,
1297                                                   EFX_RSS_CONTEXT_DEFAULT,
1298                                                   rss_conf->rss_key,
1299                                                   sizeof(sa->rss_key));
1300                         if (rc != 0)
1301                                 goto fail_scale_key_set;
1302                 }
1303
1304                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1305         }
1306
1307         sa->rss_hash_types = efx_hash_types;
1308
1309         sfc_adapter_unlock(sa);
1310
1311         return 0;
1312
1313 fail_scale_key_set:
1314         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1315                                   EFX_RX_HASHALG_TOEPLITZ,
1316                                   sa->rss_hash_types, B_TRUE) != 0)
1317                 sfc_err(sa, "failed to restore RSS mode");
1318
1319 fail_scale_mode_set:
1320         sfc_adapter_unlock(sa);
1321         return -rc;
1322 }
1323
1324 static int
1325 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1326                        struct rte_eth_rss_reta_entry64 *reta_conf,
1327                        uint16_t reta_size)
1328 {
1329         struct sfc_adapter *sa = dev->data->dev_private;
1330         struct sfc_port *port = &sa->port;
1331         int entry;
1332
1333         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1334                 return -ENOTSUP;
1335
1336         if (sa->rss_channels == 0)
1337                 return -EINVAL;
1338
1339         if (reta_size != EFX_RSS_TBL_SIZE)
1340                 return -EINVAL;
1341
1342         sfc_adapter_lock(sa);
1343
1344         for (entry = 0; entry < reta_size; entry++) {
1345                 int grp = entry / RTE_RETA_GROUP_SIZE;
1346                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1347
1348                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1349                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1350         }
1351
1352         sfc_adapter_unlock(sa);
1353
1354         return 0;
1355 }
1356
1357 static int
1358 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1359                         struct rte_eth_rss_reta_entry64 *reta_conf,
1360                         uint16_t reta_size)
1361 {
1362         struct sfc_adapter *sa = dev->data->dev_private;
1363         struct sfc_port *port = &sa->port;
1364         unsigned int *rss_tbl_new;
1365         uint16_t entry;
1366         int rc = 0;
1367
1368
1369         if (port->isolated)
1370                 return -ENOTSUP;
1371
1372         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1373                 sfc_err(sa, "RSS is not available");
1374                 return -ENOTSUP;
1375         }
1376
1377         if (sa->rss_channels == 0) {
1378                 sfc_err(sa, "RSS is not configured");
1379                 return -EINVAL;
1380         }
1381
1382         if (reta_size != EFX_RSS_TBL_SIZE) {
1383                 sfc_err(sa, "RETA size is wrong (should be %u)",
1384                         EFX_RSS_TBL_SIZE);
1385                 return -EINVAL;
1386         }
1387
1388         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1389         if (rss_tbl_new == NULL)
1390                 return -ENOMEM;
1391
1392         sfc_adapter_lock(sa);
1393
1394         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1395
1396         for (entry = 0; entry < reta_size; entry++) {
1397                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1398                 struct rte_eth_rss_reta_entry64 *grp;
1399
1400                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1401
1402                 if (grp->mask & (1ull << grp_idx)) {
1403                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1404                                 rc = EINVAL;
1405                                 goto bad_reta_entry;
1406                         }
1407                         rss_tbl_new[entry] = grp->reta[grp_idx];
1408                 }
1409         }
1410
1411         if (sa->state == SFC_ADAPTER_STARTED) {
1412                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1413                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1414                 if (rc != 0)
1415                         goto fail_scale_tbl_set;
1416         }
1417
1418         rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1419
1420 fail_scale_tbl_set:
1421 bad_reta_entry:
1422         sfc_adapter_unlock(sa);
1423
1424         rte_free(rss_tbl_new);
1425
1426         SFC_ASSERT(rc >= 0);
1427         return -rc;
1428 }
1429 #endif
1430
1431 static int
1432 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1433                     enum rte_filter_op filter_op,
1434                     void *arg)
1435 {
1436         struct sfc_adapter *sa = dev->data->dev_private;
1437         int rc = ENOTSUP;
1438
1439         sfc_log_init(sa, "entry");
1440
1441         switch (filter_type) {
1442         case RTE_ETH_FILTER_NONE:
1443                 sfc_err(sa, "Global filters configuration not supported");
1444                 break;
1445         case RTE_ETH_FILTER_MACVLAN:
1446                 sfc_err(sa, "MACVLAN filters not supported");
1447                 break;
1448         case RTE_ETH_FILTER_ETHERTYPE:
1449                 sfc_err(sa, "EtherType filters not supported");
1450                 break;
1451         case RTE_ETH_FILTER_FLEXIBLE:
1452                 sfc_err(sa, "Flexible filters not supported");
1453                 break;
1454         case RTE_ETH_FILTER_SYN:
1455                 sfc_err(sa, "SYN filters not supported");
1456                 break;
1457         case RTE_ETH_FILTER_NTUPLE:
1458                 sfc_err(sa, "NTUPLE filters not supported");
1459                 break;
1460         case RTE_ETH_FILTER_TUNNEL:
1461                 sfc_err(sa, "Tunnel filters not supported");
1462                 break;
1463         case RTE_ETH_FILTER_FDIR:
1464                 sfc_err(sa, "Flow Director filters not supported");
1465                 break;
1466         case RTE_ETH_FILTER_HASH:
1467                 sfc_err(sa, "Hash filters not supported");
1468                 break;
1469         case RTE_ETH_FILTER_GENERIC:
1470                 if (filter_op != RTE_ETH_FILTER_GET) {
1471                         rc = EINVAL;
1472                 } else {
1473                         *(const void **)arg = &sfc_flow_ops;
1474                         rc = 0;
1475                 }
1476                 break;
1477         default:
1478                 sfc_err(sa, "Unknown filter type %u", filter_type);
1479                 break;
1480         }
1481
1482         sfc_log_init(sa, "exit: %d", -rc);
1483         SFC_ASSERT(rc >= 0);
1484         return -rc;
1485 }
1486
1487 static const struct eth_dev_ops sfc_eth_dev_ops = {
1488         .dev_configure                  = sfc_dev_configure,
1489         .dev_start                      = sfc_dev_start,
1490         .dev_stop                       = sfc_dev_stop,
1491         .dev_set_link_up                = sfc_dev_set_link_up,
1492         .dev_set_link_down              = sfc_dev_set_link_down,
1493         .dev_close                      = sfc_dev_close,
1494         .promiscuous_enable             = sfc_dev_promisc_enable,
1495         .promiscuous_disable            = sfc_dev_promisc_disable,
1496         .allmulticast_enable            = sfc_dev_allmulti_enable,
1497         .allmulticast_disable           = sfc_dev_allmulti_disable,
1498         .link_update                    = sfc_dev_link_update,
1499         .stats_get                      = sfc_stats_get,
1500         .stats_reset                    = sfc_stats_reset,
1501         .xstats_get                     = sfc_xstats_get,
1502         .xstats_reset                   = sfc_stats_reset,
1503         .xstats_get_names               = sfc_xstats_get_names,
1504         .dev_infos_get                  = sfc_dev_infos_get,
1505         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1506         .mtu_set                        = sfc_dev_set_mtu,
1507         .rx_queue_start                 = sfc_rx_queue_start,
1508         .rx_queue_stop                  = sfc_rx_queue_stop,
1509         .tx_queue_start                 = sfc_tx_queue_start,
1510         .tx_queue_stop                  = sfc_tx_queue_stop,
1511         .rx_queue_setup                 = sfc_rx_queue_setup,
1512         .rx_queue_release               = sfc_rx_queue_release,
1513         .rx_queue_count                 = sfc_rx_queue_count,
1514         .rx_descriptor_done             = sfc_rx_descriptor_done,
1515         .rx_descriptor_status           = sfc_rx_descriptor_status,
1516         .tx_descriptor_status           = sfc_tx_descriptor_status,
1517         .tx_queue_setup                 = sfc_tx_queue_setup,
1518         .tx_queue_release               = sfc_tx_queue_release,
1519         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1520         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1521         .mac_addr_set                   = sfc_mac_addr_set,
1522 #if EFSYS_OPT_RX_SCALE
1523         .reta_update                    = sfc_dev_rss_reta_update,
1524         .reta_query                     = sfc_dev_rss_reta_query,
1525         .rss_hash_update                = sfc_dev_rss_hash_update,
1526         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1527 #endif
1528         .filter_ctrl                    = sfc_dev_filter_ctrl,
1529         .set_mc_addr_list               = sfc_set_mc_addr_list,
1530         .rxq_info_get                   = sfc_rx_queue_info_get,
1531         .txq_info_get                   = sfc_tx_queue_info_get,
1532         .fw_version_get                 = sfc_fw_version_get,
1533         .xstats_get_by_id               = sfc_xstats_get_by_id,
1534         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1535 };
1536
1537 /**
1538  * Duplicate a string in potentially shared memory required for
1539  * multi-process support.
1540  *
1541  * strdup() allocates from process-local heap/memory.
1542  */
1543 static char *
1544 sfc_strdup(const char *str)
1545 {
1546         size_t size;
1547         char *copy;
1548
1549         if (str == NULL)
1550                 return NULL;
1551
1552         size = strlen(str) + 1;
1553         copy = rte_malloc(__func__, size, 0);
1554         if (copy != NULL)
1555                 rte_memcpy(copy, str, size);
1556
1557         return copy;
1558 }
1559
1560 static int
1561 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1562 {
1563         struct sfc_adapter *sa = dev->data->dev_private;
1564         unsigned int avail_caps = 0;
1565         const char *rx_name = NULL;
1566         const char *tx_name = NULL;
1567         int rc;
1568
1569         switch (sa->family) {
1570         case EFX_FAMILY_HUNTINGTON:
1571         case EFX_FAMILY_MEDFORD:
1572                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1573                 break;
1574         default:
1575                 break;
1576         }
1577
1578         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1579                                 sfc_kvarg_string_handler, &rx_name);
1580         if (rc != 0)
1581                 goto fail_kvarg_rx_datapath;
1582
1583         if (rx_name != NULL) {
1584                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1585                 if (sa->dp_rx == NULL) {
1586                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1587                         rc = ENOENT;
1588                         goto fail_dp_rx;
1589                 }
1590                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1591                         sfc_err(sa,
1592                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1593                                 rx_name);
1594                         rc = EINVAL;
1595                         goto fail_dp_rx_caps;
1596                 }
1597         } else {
1598                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1599                 if (sa->dp_rx == NULL) {
1600                         sfc_err(sa, "Rx datapath by caps %#x not found",
1601                                 avail_caps);
1602                         rc = ENOENT;
1603                         goto fail_dp_rx;
1604                 }
1605         }
1606
1607         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1608         if (sa->dp_rx_name == NULL) {
1609                 rc = ENOMEM;
1610                 goto fail_dp_rx_name;
1611         }
1612
1613         sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1614
1615         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1616
1617         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1618                                 sfc_kvarg_string_handler, &tx_name);
1619         if (rc != 0)
1620                 goto fail_kvarg_tx_datapath;
1621
1622         if (tx_name != NULL) {
1623                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1624                 if (sa->dp_tx == NULL) {
1625                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1626                         rc = ENOENT;
1627                         goto fail_dp_tx;
1628                 }
1629                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1630                         sfc_err(sa,
1631                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1632                                 tx_name);
1633                         rc = EINVAL;
1634                         goto fail_dp_tx_caps;
1635                 }
1636         } else {
1637                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1638                 if (sa->dp_tx == NULL) {
1639                         sfc_err(sa, "Tx datapath by caps %#x not found",
1640                                 avail_caps);
1641                         rc = ENOENT;
1642                         goto fail_dp_tx;
1643                 }
1644         }
1645
1646         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1647         if (sa->dp_tx_name == NULL) {
1648                 rc = ENOMEM;
1649                 goto fail_dp_tx_name;
1650         }
1651
1652         sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1653
1654         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1655
1656         dev->dev_ops = &sfc_eth_dev_ops;
1657
1658         return 0;
1659
1660 fail_dp_tx_name:
1661 fail_dp_tx_caps:
1662         sa->dp_tx = NULL;
1663
1664 fail_dp_tx:
1665 fail_kvarg_tx_datapath:
1666         rte_free(sa->dp_rx_name);
1667         sa->dp_rx_name = NULL;
1668
1669 fail_dp_rx_name:
1670 fail_dp_rx_caps:
1671         sa->dp_rx = NULL;
1672
1673 fail_dp_rx:
1674 fail_kvarg_rx_datapath:
1675         return rc;
1676 }
1677
1678 static void
1679 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1680 {
1681         struct sfc_adapter *sa = dev->data->dev_private;
1682
1683         dev->dev_ops = NULL;
1684         dev->rx_pkt_burst = NULL;
1685         dev->tx_pkt_burst = NULL;
1686
1687         rte_free(sa->dp_tx_name);
1688         sa->dp_tx_name = NULL;
1689         sa->dp_tx = NULL;
1690
1691         rte_free(sa->dp_rx_name);
1692         sa->dp_rx_name = NULL;
1693         sa->dp_rx = NULL;
1694 }
1695
1696 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1697         .rxq_info_get                   = sfc_rx_queue_info_get,
1698         .txq_info_get                   = sfc_tx_queue_info_get,
1699 };
1700
1701 static int
1702 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1703 {
1704         /*
1705          * Device private data has really many process-local pointers.
1706          * Below code should be extremely careful to use data located
1707          * in shared memory only.
1708          */
1709         struct sfc_adapter *sa = dev->data->dev_private;
1710         const struct sfc_dp_rx *dp_rx;
1711         const struct sfc_dp_tx *dp_tx;
1712         int rc;
1713
1714         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1715         if (dp_rx == NULL) {
1716                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1717                 rc = ENOENT;
1718                 goto fail_dp_rx;
1719         }
1720         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1721                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1722                         sa->dp_tx_name);
1723                 rc = EINVAL;
1724                 goto fail_dp_rx_multi_process;
1725         }
1726
1727         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1728         if (dp_tx == NULL) {
1729                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1730                 rc = ENOENT;
1731                 goto fail_dp_tx;
1732         }
1733         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1734                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1735                         sa->dp_tx_name);
1736                 rc = EINVAL;
1737                 goto fail_dp_tx_multi_process;
1738         }
1739
1740         dev->rx_pkt_burst = dp_rx->pkt_burst;
1741         dev->tx_pkt_burst = dp_tx->pkt_burst;
1742         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1743
1744         return 0;
1745
1746 fail_dp_tx_multi_process:
1747 fail_dp_tx:
1748 fail_dp_rx_multi_process:
1749 fail_dp_rx:
1750         return rc;
1751 }
1752
1753 static void
1754 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1755 {
1756         dev->dev_ops = NULL;
1757         dev->tx_pkt_burst = NULL;
1758         dev->rx_pkt_burst = NULL;
1759 }
1760
1761 static void
1762 sfc_register_dp(void)
1763 {
1764         /* Register once */
1765         if (TAILQ_EMPTY(&sfc_dp_head)) {
1766                 /* Prefer EF10 datapath */
1767                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1768                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1769
1770                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1771                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1772                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1773         }
1774 }
1775
1776 static int
1777 sfc_eth_dev_init(struct rte_eth_dev *dev)
1778 {
1779         struct sfc_adapter *sa = dev->data->dev_private;
1780         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1781         int rc;
1782         const efx_nic_cfg_t *encp;
1783         const struct ether_addr *from;
1784
1785         sfc_register_dp();
1786
1787         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1788                 return -sfc_eth_dev_secondary_set_ops(dev);
1789
1790         /* Required for logging */
1791         sa->pci_addr = pci_dev->addr;
1792         sa->port_id = dev->data->port_id;
1793
1794         sa->eth_dev = dev;
1795
1796         /* Copy PCI device info to the dev->data */
1797         rte_eth_copy_pci_info(dev, pci_dev);
1798
1799         rc = sfc_kvargs_parse(sa);
1800         if (rc != 0)
1801                 goto fail_kvargs_parse;
1802
1803         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1804                                 sfc_kvarg_bool_handler, &sa->debug_init);
1805         if (rc != 0)
1806                 goto fail_kvarg_debug_init;
1807
1808         sfc_log_init(sa, "entry");
1809
1810         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1811         if (dev->data->mac_addrs == NULL) {
1812                 rc = ENOMEM;
1813                 goto fail_mac_addrs;
1814         }
1815
1816         sfc_adapter_lock_init(sa);
1817         sfc_adapter_lock(sa);
1818
1819         sfc_log_init(sa, "probing");
1820         rc = sfc_probe(sa);
1821         if (rc != 0)
1822                 goto fail_probe;
1823
1824         sfc_log_init(sa, "set device ops");
1825         rc = sfc_eth_dev_set_ops(dev);
1826         if (rc != 0)
1827                 goto fail_set_ops;
1828
1829         sfc_log_init(sa, "attaching");
1830         rc = sfc_attach(sa);
1831         if (rc != 0)
1832                 goto fail_attach;
1833
1834         encp = efx_nic_cfg_get(sa->nic);
1835
1836         /*
1837          * The arguments are really reverse order in comparison to
1838          * Linux kernel. Copy from NIC config to Ethernet device data.
1839          */
1840         from = (const struct ether_addr *)(encp->enc_mac_addr);
1841         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1842
1843         sfc_adapter_unlock(sa);
1844
1845         sfc_log_init(sa, "done");
1846         return 0;
1847
1848 fail_attach:
1849         sfc_eth_dev_clear_ops(dev);
1850
1851 fail_set_ops:
1852         sfc_unprobe(sa);
1853
1854 fail_probe:
1855         sfc_adapter_unlock(sa);
1856         sfc_adapter_lock_fini(sa);
1857         rte_free(dev->data->mac_addrs);
1858         dev->data->mac_addrs = NULL;
1859
1860 fail_mac_addrs:
1861 fail_kvarg_debug_init:
1862         sfc_kvargs_cleanup(sa);
1863
1864 fail_kvargs_parse:
1865         sfc_log_init(sa, "failed %d", rc);
1866         SFC_ASSERT(rc > 0);
1867         return -rc;
1868 }
1869
1870 static int
1871 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1872 {
1873         struct sfc_adapter *sa;
1874
1875         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1876                 sfc_eth_dev_secondary_clear_ops(dev);
1877                 return 0;
1878         }
1879
1880         sa = dev->data->dev_private;
1881         sfc_log_init(sa, "entry");
1882
1883         sfc_adapter_lock(sa);
1884
1885         sfc_eth_dev_clear_ops(dev);
1886
1887         sfc_detach(sa);
1888         sfc_unprobe(sa);
1889
1890         rte_free(dev->data->mac_addrs);
1891         dev->data->mac_addrs = NULL;
1892
1893         sfc_kvargs_cleanup(sa);
1894
1895         sfc_adapter_unlock(sa);
1896         sfc_adapter_lock_fini(sa);
1897
1898         sfc_log_init(sa, "done");
1899
1900         /* Required for logging, so cleanup last */
1901         sa->eth_dev = NULL;
1902         return 0;
1903 }
1904
1905 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1906         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1907         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1908         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1909         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1910         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1911         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1912         { .vendor_id = 0 /* sentinel */ }
1913 };
1914
1915 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1916         struct rte_pci_device *pci_dev)
1917 {
1918         return rte_eth_dev_pci_generic_probe(pci_dev,
1919                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
1920 }
1921
1922 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
1923 {
1924         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
1925 }
1926
1927 static struct rte_pci_driver sfc_efx_pmd = {
1928         .id_table = pci_id_sfc_efx_map,
1929         .drv_flags =
1930                 RTE_PCI_DRV_INTR_LSC |
1931                 RTE_PCI_DRV_NEED_MAPPING,
1932         .probe = sfc_eth_dev_pci_probe,
1933         .remove = sfc_eth_dev_pci_remove,
1934 };
1935
1936 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
1937 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1938 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
1939 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1940         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
1941         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
1942         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1943         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1944         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1945         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);