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_errno.h>
  37
  38 #include "efx.h"
  39
  40 #include "sfc.h"
  41 #include "sfc_debug.h"
  42 #include "sfc_log.h"
  43 #include "sfc_kvargs.h"
  44 #include "sfc_ev.h"
  45 #include "sfc_rx.h"
  46 #include "sfc_tx.h"
  47 #include "sfc_flow.h"
  48 #include "sfc_dp.h"
  49 #include "sfc_dp_rx.h"
  50
  51 static struct sfc_dp_list sfc_dp_head =
  52         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  53
  54 static int
  55 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  56 {
  57         struct sfc_adapter *sa = dev->data->dev_private;
  58         efx_nic_fw_info_t enfi;
  59         int ret;
  60         int rc;
  61
  62         /*
  63          * Return value of the callback is likely supposed to be
  64          * equal to or greater than 0, nevertheless, if an error
  65          * occurs, it will be desirable to pass it to the caller
  66          */
  67         if ((fw_version == NULL) || (fw_size == 0))
  68                 return -EINVAL;
  69
  70         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  71         if (rc != 0)
  72                 return -rc;
  73
  74         ret = snprintf(fw_version, fw_size,
  75                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  76                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  77                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  78         if (ret < 0)
  79                 return ret;
  80
  81         if (enfi.enfi_dpcpu_fw_ids_valid) {
  82                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  83                 int ret_extra;
  84
  85                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  86                                      fw_size - dpcpu_fw_ids_offset,
  87                                      " rx%" PRIx16 " tx%" PRIx16,
  88                                      enfi.enfi_rx_dpcpu_fw_id,
  89                                      enfi.enfi_tx_dpcpu_fw_id);
  90                 if (ret_extra < 0)
  91                         return ret_extra;
  92
  93                 ret += ret_extra;
  94         }
  95
  96         if (fw_size < (size_t)(++ret))
  97                 return ret;
  98         else
  99                 return 0;
 100 }
 101
 102 static void
 103 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 104 {
 105         struct sfc_adapter *sa = dev->data->dev_private;
 106         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 107
 108         sfc_log_init(sa, "entry");
 109
 110         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 111         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 112
 113         /* Autonegotiation may be disabled */
 114         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 115         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 116                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 117         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 118                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 119         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 120                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 121
 122         dev_info->max_rx_queues = sa->rxq_max;
 123         dev_info->max_tx_queues = sa->txq_max;
 124
 125         /* By default packets are dropped if no descriptors are available */
 126         dev_info->default_rxconf.rx_drop_en = 1;
 127
 128         dev_info->rx_offload_capa =
 129                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 130                 DEV_RX_OFFLOAD_UDP_CKSUM |
 131                 DEV_RX_OFFLOAD_TCP_CKSUM;
 132
 133         dev_info->tx_offload_capa =
 134                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 135                 DEV_TX_OFFLOAD_UDP_CKSUM |
 136                 DEV_TX_OFFLOAD_TCP_CKSUM;
 137
 138         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 139         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 140             !encp->enc_hw_tx_insert_vlan_enabled)
 141                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 142         else
 143                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 144
 145         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 146                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 147
 148         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
 149                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
 150
 151         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
 152                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
 153
 154 #if EFSYS_OPT_RX_SCALE
 155         if (sa->rss_support != 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 #endif
 161
 162         if (sa->tso)
 163                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 164
 165         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 166         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 167         /* The RXQ hardware requires that the descriptor count is a power
 168          * of 2, but rx_desc_lim cannot properly describe that constraint.
 169          */
 170         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 171
 172         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 173         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 174         /*
 175          * The TXQ hardware requires that the descriptor count is a power
 176          * of 2, but tx_desc_lim cannot properly describe that constraint
 177          */
 178         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 179 }
 180
 181 static const uint32_t *
 182 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 183 {
 184         struct sfc_adapter *sa = dev->data->dev_private;
 185
 186         return sa->dp_rx->supported_ptypes_get();
 187 }
 188
 189 static int
 190 sfc_dev_configure(struct rte_eth_dev *dev)
 191 {
 192         struct rte_eth_dev_data *dev_data = dev->data;
 193         struct sfc_adapter *sa = dev_data->dev_private;
 194         int rc;
 195
 196         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 197                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 198
 199         sfc_adapter_lock(sa);
 200         switch (sa->state) {
 201         case SFC_ADAPTER_CONFIGURED:
 202                 /* FALLTHROUGH */
 203         case SFC_ADAPTER_INITIALIZED:
 204                 rc = sfc_configure(sa);
 205                 break;
 206         default:
 207                 sfc_err(sa, "unexpected adapter state %u to configure",
 208                         sa->state);
 209                 rc = EINVAL;
 210                 break;
 211         }
 212         sfc_adapter_unlock(sa);
 213
 214         sfc_log_init(sa, "done %d", rc);
 215         SFC_ASSERT(rc >= 0);
 216         return -rc;
 217 }
 218
 219 static int
 220 sfc_dev_start(struct rte_eth_dev *dev)
 221 {
 222         struct sfc_adapter *sa = dev->data->dev_private;
 223         int rc;
 224
 225         sfc_log_init(sa, "entry");
 226
 227         sfc_adapter_lock(sa);
 228         rc = sfc_start(sa);
 229         sfc_adapter_unlock(sa);
 230
 231         sfc_log_init(sa, "done %d", rc);
 232         SFC_ASSERT(rc >= 0);
 233         return -rc;
 234 }
 235
 236 static int
 237 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 238 {
 239         struct sfc_adapter *sa = dev->data->dev_private;
 240         struct rte_eth_link *dev_link = &dev->data->dev_link;
 241         struct rte_eth_link old_link;
 242         struct rte_eth_link current_link;
 243
 244         sfc_log_init(sa, "entry");
 245
 246 retry:
 247         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 248         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 249
 250         if (sa->state != SFC_ADAPTER_STARTED) {
 251                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 252                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 253                                          *(uint64_t *)&old_link,
 254                                          *(uint64_t *)&current_link))
 255                         goto retry;
 256         } else if (wait_to_complete) {
 257                 efx_link_mode_t link_mode;
 258
 259                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 260                         link_mode = EFX_LINK_UNKNOWN;
 261                 sfc_port_link_mode_to_info(link_mode, &current_link);
 262
 263                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 264                                          *(uint64_t *)&old_link,
 265                                          *(uint64_t *)&current_link))
 266                         goto retry;
 267         } else {
 268                 sfc_ev_mgmt_qpoll(sa);
 269                 *(int64_t *)&current_link =
 270                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 271         }
 272
 273         if (old_link.link_status != current_link.link_status)
 274                 sfc_info(sa, "Link status is %s",
 275                          current_link.link_status ? "UP" : "DOWN");
 276
 277         return old_link.link_status == current_link.link_status ? 0 : -1;
 278 }
 279
 280 static void
 281 sfc_dev_stop(struct rte_eth_dev *dev)
 282 {
 283         struct sfc_adapter *sa = dev->data->dev_private;
 284
 285         sfc_log_init(sa, "entry");
 286
 287         sfc_adapter_lock(sa);
 288         sfc_stop(sa);
 289         sfc_adapter_unlock(sa);
 290
 291         sfc_log_init(sa, "done");
 292 }
 293
 294 static int
 295 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 296 {
 297         struct sfc_adapter *sa = dev->data->dev_private;
 298         int rc;
 299
 300         sfc_log_init(sa, "entry");
 301
 302         sfc_adapter_lock(sa);
 303         rc = sfc_start(sa);
 304         sfc_adapter_unlock(sa);
 305
 306         SFC_ASSERT(rc >= 0);
 307         return -rc;
 308 }
 309
 310 static int
 311 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 312 {
 313         struct sfc_adapter *sa = dev->data->dev_private;
 314
 315         sfc_log_init(sa, "entry");
 316
 317         sfc_adapter_lock(sa);
 318         sfc_stop(sa);
 319         sfc_adapter_unlock(sa);
 320
 321         return 0;
 322 }
 323
 324 static void
 325 sfc_dev_close(struct rte_eth_dev *dev)
 326 {
 327         struct sfc_adapter *sa = dev->data->dev_private;
 328
 329         sfc_log_init(sa, "entry");
 330
 331         sfc_adapter_lock(sa);
 332         switch (sa->state) {
 333         case SFC_ADAPTER_STARTED:
 334                 sfc_stop(sa);
 335                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 336                 /* FALLTHROUGH */
 337         case SFC_ADAPTER_CONFIGURED:
 338                 sfc_close(sa);
 339                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 340                 /* FALLTHROUGH */
 341         case SFC_ADAPTER_INITIALIZED:
 342                 break;
 343         default:
 344                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 345                 break;
 346         }
 347         sfc_adapter_unlock(sa);
 348
 349         sfc_log_init(sa, "done");
 350 }
 351
 352 static void
 353 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 354                    boolean_t enabled)
 355 {
 356         struct sfc_port *port;
 357         boolean_t *toggle;
 358         struct sfc_adapter *sa = dev->data->dev_private;
 359         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 360         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 361
 362         sfc_adapter_lock(sa);
 363
 364         port = &sa->port;
 365         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 366
 367         if (*toggle != enabled) {
 368                 *toggle = enabled;
 369
 370                 if (port->isolated) {
 371                         sfc_warn(sa, "isolated mode is active on the port");
 372                         sfc_warn(sa, "the change is to be applied on the next "
 373                                      "start provided that isolated mode is "
 374                                      "disabled prior the next start");
 375                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 376                            (sfc_set_rx_mode(sa) != 0)) {
 377                         *toggle = !(enabled);
 378                         sfc_warn(sa, "Failed to %s %s mode",
 379                                  ((enabled) ? "enable" : "disable"), desc);
 380                 }
 381         }
 382
 383         sfc_adapter_unlock(sa);
 384 }
 385
 386 static void
 387 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 388 {
 389         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 390 }
 391
 392 static void
 393 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 394 {
 395         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 396 }
 397
 398 static void
 399 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 400 {
 401         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 402 }
 403
 404 static void
 405 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 406 {
 407         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 408 }
 409
 410 static int
 411 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 412                    uint16_t nb_rx_desc, unsigned int socket_id,
 413                    const struct rte_eth_rxconf *rx_conf,
 414                    struct rte_mempool *mb_pool)
 415 {
 416         struct sfc_adapter *sa = dev->data->dev_private;
 417         int rc;
 418
 419         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 420                      rx_queue_id, nb_rx_desc, socket_id);
 421
 422         sfc_adapter_lock(sa);
 423
 424         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 425                           rx_conf, mb_pool);
 426         if (rc != 0)
 427                 goto fail_rx_qinit;
 428
 429         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 430
 431         sfc_adapter_unlock(sa);
 432
 433         return 0;
 434
 435 fail_rx_qinit:
 436         sfc_adapter_unlock(sa);
 437         SFC_ASSERT(rc > 0);
 438         return -rc;
 439 }
 440
 441 static void
 442 sfc_rx_queue_release(void *queue)
 443 {
 444         struct sfc_dp_rxq *dp_rxq = queue;
 445         struct sfc_rxq *rxq;
 446         struct sfc_adapter *sa;
 447         unsigned int sw_index;
 448
 449         if (dp_rxq == NULL)
 450                 return;
 451
 452         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 453         sa = rxq->evq->sa;
 454         sfc_adapter_lock(sa);
 455
 456         sw_index = sfc_rxq_sw_index(rxq);
 457
 458         sfc_log_init(sa, "RxQ=%u", sw_index);
 459
 460         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 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_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 517         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 518
 519         sfc_tx_qfini(sa, sw_index);
 520
 521         sfc_adapter_unlock(sa);
 522 }
 523
 524 static int
 525 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 526 {
 527         struct sfc_adapter *sa = dev->data->dev_private;
 528         struct sfc_port *port = &sa->port;
 529         uint64_t *mac_stats;
 530         int ret;
 531
 532         rte_spinlock_lock(&port->mac_stats_lock);
 533
 534         ret = sfc_port_update_mac_stats(sa);
 535         if (ret != 0)
 536                 goto unlock;
 537
 538         mac_stats = port->mac_stats_buf;
 539
 540         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 541                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 542                 stats->ipackets =
 543                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 544                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 545                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 546                 stats->opackets =
 547                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 548                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 549                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 550                 stats->ibytes =
 551                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 552                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 553                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 554                 stats->obytes =
 555                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 556                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 557                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 558                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 559                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 560                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 561         } else {
 562                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 563                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 564                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 565                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 566                 /*
 567                  * Take into account stats which are whenever supported
 568                  * on EF10. If some stat is not supported by current
 569                  * firmware variant or HW revision, it is guaranteed
 570                  * to be zero in mac_stats.
 571                  */
 572                 stats->imissed =
 573                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 574                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 575                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 576                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 577                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 578                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 579                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 580                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 581                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 582                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 583                 stats->ierrors =
 584                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 585                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 586                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 587                 /* no oerrors counters supported on EF10 */
 588         }
 589
 590 unlock:
 591         rte_spinlock_unlock(&port->mac_stats_lock);
 592         SFC_ASSERT(ret >= 0);
 593         return -ret;
 594 }
 595
 596 static void
 597 sfc_stats_reset(struct rte_eth_dev *dev)
 598 {
 599         struct sfc_adapter *sa = dev->data->dev_private;
 600         struct sfc_port *port = &sa->port;
 601         int rc;
 602
 603         if (sa->state != SFC_ADAPTER_STARTED) {
 604                 /*
 605                  * The operation cannot be done if port is not started; it
 606                  * will be scheduled to be done during the next port start
 607                  */
 608                 port->mac_stats_reset_pending = B_TRUE;
 609                 return;
 610         }
 611
 612         rc = sfc_port_reset_mac_stats(sa);
 613         if (rc != 0)
 614                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 615 }
 616
 617 static int
 618 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 619                unsigned int xstats_count)
 620 {
 621         struct sfc_adapter *sa = dev->data->dev_private;
 622         struct sfc_port *port = &sa->port;
 623         uint64_t *mac_stats;
 624         int rc;
 625         unsigned int i;
 626         int nstats = 0;
 627
 628         rte_spinlock_lock(&port->mac_stats_lock);
 629
 630         rc = sfc_port_update_mac_stats(sa);
 631         if (rc != 0) {
 632                 SFC_ASSERT(rc > 0);
 633                 nstats = -rc;
 634                 goto unlock;
 635         }
 636
 637         mac_stats = port->mac_stats_buf;
 638
 639         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 640                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 641                         if (xstats != NULL && nstats < (int)xstats_count) {
 642                                 xstats[nstats].id = nstats;
 643                                 xstats[nstats].value = mac_stats[i];
 644                         }
 645                         nstats++;
 646                 }
 647         }
 648
 649 unlock:
 650         rte_spinlock_unlock(&port->mac_stats_lock);
 651
 652         return nstats;
 653 }
 654
 655 static int
 656 sfc_xstats_get_names(struct rte_eth_dev *dev,
 657                      struct rte_eth_xstat_name *xstats_names,
 658                      unsigned int xstats_count)
 659 {
 660         struct sfc_adapter *sa = dev->data->dev_private;
 661         struct sfc_port *port = &sa->port;
 662         unsigned int i;
 663         unsigned int nstats = 0;
 664
 665         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 666                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 667                         if (xstats_names != NULL && nstats < xstats_count)
 668                                 strncpy(xstats_names[nstats].name,
 669                                         efx_mac_stat_name(sa->nic, i),
 670                                         sizeof(xstats_names[0].name));
 671                         nstats++;
 672                 }
 673         }
 674
 675         return nstats;
 676 }
 677
 678 static int
 679 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 680                      uint64_t *values, unsigned int n)
 681 {
 682         struct sfc_adapter *sa = dev->data->dev_private;
 683         struct sfc_port *port = &sa->port;
 684         uint64_t *mac_stats;
 685         unsigned int nb_supported = 0;
 686         unsigned int nb_written = 0;
 687         unsigned int i;
 688         int ret;
 689         int rc;
 690
 691         if (unlikely(values == NULL) ||
 692             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 693                 return port->mac_stats_nb_supported;
 694
 695         rte_spinlock_lock(&port->mac_stats_lock);
 696
 697         rc = sfc_port_update_mac_stats(sa);
 698         if (rc != 0) {
 699                 SFC_ASSERT(rc > 0);
 700                 ret = -rc;
 701                 goto unlock;
 702         }
 703
 704         mac_stats = port->mac_stats_buf;
 705
 706         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 707                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 708                         continue;
 709
 710                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 711                         values[nb_written++] = mac_stats[i];
 712
 713                 ++nb_supported;
 714         }
 715
 716         ret = nb_written;
 717
 718 unlock:
 719         rte_spinlock_unlock(&port->mac_stats_lock);
 720
 721         return ret;
 722 }
 723
 724 static int
 725 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 726                            struct rte_eth_xstat_name *xstats_names,
 727                            const uint64_t *ids, unsigned int size)
 728 {
 729         struct sfc_adapter *sa = dev->data->dev_private;
 730         struct sfc_port *port = &sa->port;
 731         unsigned int nb_supported = 0;
 732         unsigned int nb_written = 0;
 733         unsigned int i;
 734
 735         if (unlikely(xstats_names == NULL) ||
 736             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 737                 return port->mac_stats_nb_supported;
 738
 739         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 740                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 741                         continue;
 742
 743                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 744                         char *name = xstats_names[nb_written++].name;
 745
 746                         strncpy(name, efx_mac_stat_name(sa->nic, i),
 747                                 sizeof(xstats_names[0].name));
 748                         name[sizeof(xstats_names[0].name) - 1] = '\0';
 749                 }
 750
 751                 ++nb_supported;
 752         }
 753
 754         return nb_written;
 755 }
 756
 757 static int
 758 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 759 {
 760         struct sfc_adapter *sa = dev->data->dev_private;
 761         unsigned int wanted_fc, link_fc;
 762
 763         memset(fc_conf, 0, sizeof(*fc_conf));
 764
 765         sfc_adapter_lock(sa);
 766
 767         if (sa->state == SFC_ADAPTER_STARTED)
 768                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 769         else
 770                 link_fc = sa->port.flow_ctrl;
 771
 772         switch (link_fc) {
 773         case 0:
 774                 fc_conf->mode = RTE_FC_NONE;
 775                 break;
 776         case EFX_FCNTL_RESPOND:
 777                 fc_conf->mode = RTE_FC_RX_PAUSE;
 778                 break;
 779         case EFX_FCNTL_GENERATE:
 780                 fc_conf->mode = RTE_FC_TX_PAUSE;
 781                 break;
 782         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 783                 fc_conf->mode = RTE_FC_FULL;
 784                 break;
 785         default:
 786                 sfc_err(sa, "%s: unexpected flow control value %#x",
 787                         __func__, link_fc);
 788         }
 789
 790         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 791
 792         sfc_adapter_unlock(sa);
 793
 794         return 0;
 795 }
 796
 797 static int
 798 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 799 {
 800         struct sfc_adapter *sa = dev->data->dev_private;
 801         struct sfc_port *port = &sa->port;
 802         unsigned int fcntl;
 803         int rc;
 804
 805         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 806             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 807             fc_conf->mac_ctrl_frame_fwd != 0) {
 808                 sfc_err(sa, "unsupported flow control settings specified");
 809                 rc = EINVAL;
 810                 goto fail_inval;
 811         }
 812
 813         switch (fc_conf->mode) {
 814         case RTE_FC_NONE:
 815                 fcntl = 0;
 816                 break;
 817         case RTE_FC_RX_PAUSE:
 818                 fcntl = EFX_FCNTL_RESPOND;
 819                 break;
 820         case RTE_FC_TX_PAUSE:
 821                 fcntl = EFX_FCNTL_GENERATE;
 822                 break;
 823         case RTE_FC_FULL:
 824                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 825                 break;
 826         default:
 827                 rc = EINVAL;
 828                 goto fail_inval;
 829         }
 830
 831         sfc_adapter_lock(sa);
 832
 833         if (sa->state == SFC_ADAPTER_STARTED) {
 834                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 835                 if (rc != 0)
 836                         goto fail_mac_fcntl_set;
 837         }
 838
 839         port->flow_ctrl = fcntl;
 840         port->flow_ctrl_autoneg = fc_conf->autoneg;
 841
 842         sfc_adapter_unlock(sa);
 843
 844         return 0;
 845
 846 fail_mac_fcntl_set:
 847         sfc_adapter_unlock(sa);
 848 fail_inval:
 849         SFC_ASSERT(rc > 0);
 850         return -rc;
 851 }
 852
 853 static int
 854 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 855 {
 856         struct sfc_adapter *sa = dev->data->dev_private;
 857         size_t pdu = EFX_MAC_PDU(mtu);
 858         size_t old_pdu;
 859         int rc;
 860
 861         sfc_log_init(sa, "mtu=%u", mtu);
 862
 863         rc = EINVAL;
 864         if (pdu < EFX_MAC_PDU_MIN) {
 865                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 866                         (unsigned int)mtu, (unsigned int)pdu,
 867                         EFX_MAC_PDU_MIN);
 868                 goto fail_inval;
 869         }
 870         if (pdu > EFX_MAC_PDU_MAX) {
 871                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 872                         (unsigned int)mtu, (unsigned int)pdu,
 873                         EFX_MAC_PDU_MAX);
 874                 goto fail_inval;
 875         }
 876
 877         sfc_adapter_lock(sa);
 878
 879         if (pdu != sa->port.pdu) {
 880                 if (sa->state == SFC_ADAPTER_STARTED) {
 881                         sfc_stop(sa);
 882
 883                         old_pdu = sa->port.pdu;
 884                         sa->port.pdu = pdu;
 885                         rc = sfc_start(sa);
 886                         if (rc != 0)
 887                                 goto fail_start;
 888                 } else {
 889                         sa->port.pdu = pdu;
 890                 }
 891         }
 892
 893         /*
 894          * The driver does not use it, but other PMDs update jumbo_frame
 895          * flag and max_rx_pkt_len when MTU is set.
 896          */
 897         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 898         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 899
 900         sfc_adapter_unlock(sa);
 901
 902         sfc_log_init(sa, "done");
 903         return 0;
 904
 905 fail_start:
 906         sa->port.pdu = old_pdu;
 907         if (sfc_start(sa) != 0)
 908                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 909                         "PDU max size - port is stopped",
 910                         (unsigned int)pdu, (unsigned int)old_pdu);
 911         sfc_adapter_unlock(sa);
 912
 913 fail_inval:
 914         sfc_log_init(sa, "failed %d", rc);
 915         SFC_ASSERT(rc > 0);
 916         return -rc;
 917 }
 918 static void
 919 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 920 {
 921         struct sfc_adapter *sa = dev->data->dev_private;
 922         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 923         struct sfc_port *port = &sa->port;
 924         int rc;
 925
 926         sfc_adapter_lock(sa);
 927
 928         if (port->isolated) {
 929                 sfc_err(sa, "isolated mode is active on the port");
 930                 sfc_err(sa, "will not set MAC address");
 931                 goto unlock;
 932         }
 933
 934         if (sa->state != SFC_ADAPTER_STARTED) {
 935                 sfc_info(sa, "the port is not started");
 936                 sfc_info(sa, "the new MAC address will be set on port start");
 937
 938                 goto unlock;
 939         }
 940
 941         if (encp->enc_allow_set_mac_with_installed_filters) {
 942                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 943                 if (rc != 0) {
 944                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 945                         goto unlock;
 946                 }
 947
 948                 /*
 949                  * Changing the MAC address by means of MCDI request
 950                  * has no effect on received traffic, therefore
 951                  * we also need to update unicast filters
 952                  */
 953                 rc = sfc_set_rx_mode(sa);
 954                 if (rc != 0)
 955                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 956         } else {
 957                 sfc_warn(sa, "cannot set MAC address with filters installed");
 958                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 959                 sfc_warn(sa, "(some traffic may be dropped)");
 960
 961                 /*
 962                  * Since setting MAC address with filters installed is not
 963                  * allowed on the adapter, one needs to simply restart adapter
 964                  * so that the new MAC address will be taken from an outer
 965                  * storage and set flawlessly by means of sfc_start() call
 966                  */
 967                 sfc_stop(sa);
 968                 rc = sfc_start(sa);
 969                 if (rc != 0)
 970                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 971         }
 972
 973 unlock:
 974         sfc_adapter_unlock(sa);
 975 }
 976
 977
 978 static int
 979 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 980                      uint32_t nb_mc_addr)
 981 {
 982         struct sfc_adapter *sa = dev->data->dev_private;
 983         struct sfc_port *port = &sa->port;
 984         uint8_t *mc_addrs = port->mcast_addrs;
 985         int rc;
 986         unsigned int i;
 987
 988         if (port->isolated) {
 989                 sfc_err(sa, "isolated mode is active on the port");
 990                 sfc_err(sa, "will not set multicast address list");
 991                 return -ENOTSUP;
 992         }
 993
 994         if (mc_addrs == NULL)
 995                 return -ENOBUFS;
 996
 997         if (nb_mc_addr > port->max_mcast_addrs) {
 998                 sfc_err(sa, "too many multicast addresses: %u > %u",
 999                          nb_mc_addr, port->max_mcast_addrs);
1000                 return -EINVAL;
1001         }
1002
1003         for (i = 0; i < nb_mc_addr; ++i) {
1004                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1005                                  EFX_MAC_ADDR_LEN);
1006                 mc_addrs += EFX_MAC_ADDR_LEN;
1007         }
1008
1009         port->nb_mcast_addrs = nb_mc_addr;
1010
1011         if (sa->state != SFC_ADAPTER_STARTED)
1012                 return 0;
1013
1014         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1015                                         port->nb_mcast_addrs);
1016         if (rc != 0)
1017                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1018
1019         SFC_ASSERT(rc > 0);
1020         return -rc;
1021 }
1022
1023 /*
1024  * The function is used by the secondary process as well. It must not
1025  * use any process-local pointers from the adapter data.
1026  */
1027 static void
1028 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1029                       struct rte_eth_rxq_info *qinfo)
1030 {
1031         struct sfc_adapter *sa = dev->data->dev_private;
1032         struct sfc_rxq_info *rxq_info;
1033         struct sfc_rxq *rxq;
1034
1035         sfc_adapter_lock(sa);
1036
1037         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1038
1039         rxq_info = &sa->rxq_info[rx_queue_id];
1040         rxq = rxq_info->rxq;
1041         SFC_ASSERT(rxq != NULL);
1042
1043         qinfo->mp = rxq->refill_mb_pool;
1044         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1045         qinfo->conf.rx_drop_en = 1;
1046         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1047         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
1048         qinfo->nb_desc = rxq_info->entries;
1049
1050         sfc_adapter_unlock(sa);
1051 }
1052
1053 /*
1054  * The function is used by the secondary process as well. It must not
1055  * use any process-local pointers from the adapter data.
1056  */
1057 static void
1058 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1059                       struct rte_eth_txq_info *qinfo)
1060 {
1061         struct sfc_adapter *sa = dev->data->dev_private;
1062         struct sfc_txq_info *txq_info;
1063
1064         sfc_adapter_lock(sa);
1065
1066         SFC_ASSERT(tx_queue_id < sa->txq_count);
1067
1068         txq_info = &sa->txq_info[tx_queue_id];
1069         SFC_ASSERT(txq_info->txq != NULL);
1070
1071         memset(qinfo, 0, sizeof(*qinfo));
1072
1073         qinfo->conf.txq_flags = txq_info->txq->flags;
1074         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1075         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1076         qinfo->nb_desc = txq_info->entries;
1077
1078         sfc_adapter_unlock(sa);
1079 }
1080
1081 static uint32_t
1082 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1083 {
1084         struct sfc_adapter *sa = dev->data->dev_private;
1085
1086         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1087
1088         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1089 }
1090
1091 static int
1092 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1093 {
1094         struct sfc_dp_rxq *dp_rxq = queue;
1095
1096         return sfc_rx_qdesc_done(dp_rxq, offset);
1097 }
1098
1099 static int
1100 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1101 {
1102         struct sfc_dp_rxq *dp_rxq = queue;
1103         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1104
1105         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1106 }
1107
1108 static int
1109 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1110 {
1111         struct sfc_dp_txq *dp_txq = queue;
1112         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1113
1114         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1115 }
1116
1117 static int
1118 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1119 {
1120         struct sfc_adapter *sa = dev->data->dev_private;
1121         int rc;
1122
1123         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1124
1125         sfc_adapter_lock(sa);
1126
1127         rc = EINVAL;
1128         if (sa->state != SFC_ADAPTER_STARTED)
1129                 goto fail_not_started;
1130
1131         rc = sfc_rx_qstart(sa, rx_queue_id);
1132         if (rc != 0)
1133                 goto fail_rx_qstart;
1134
1135         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1136
1137         sfc_adapter_unlock(sa);
1138
1139         return 0;
1140
1141 fail_rx_qstart:
1142 fail_not_started:
1143         sfc_adapter_unlock(sa);
1144         SFC_ASSERT(rc > 0);
1145         return -rc;
1146 }
1147
1148 static int
1149 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1150 {
1151         struct sfc_adapter *sa = dev->data->dev_private;
1152
1153         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1154
1155         sfc_adapter_lock(sa);
1156         sfc_rx_qstop(sa, rx_queue_id);
1157
1158         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1159
1160         sfc_adapter_unlock(sa);
1161
1162         return 0;
1163 }
1164
1165 static int
1166 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1167 {
1168         struct sfc_adapter *sa = dev->data->dev_private;
1169         int rc;
1170
1171         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1172
1173         sfc_adapter_lock(sa);
1174
1175         rc = EINVAL;
1176         if (sa->state != SFC_ADAPTER_STARTED)
1177                 goto fail_not_started;
1178
1179         rc = sfc_tx_qstart(sa, tx_queue_id);
1180         if (rc != 0)
1181                 goto fail_tx_qstart;
1182
1183         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1184
1185         sfc_adapter_unlock(sa);
1186         return 0;
1187
1188 fail_tx_qstart:
1189
1190 fail_not_started:
1191         sfc_adapter_unlock(sa);
1192         SFC_ASSERT(rc > 0);
1193         return -rc;
1194 }
1195
1196 static int
1197 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1198 {
1199         struct sfc_adapter *sa = dev->data->dev_private;
1200
1201         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1202
1203         sfc_adapter_lock(sa);
1204
1205         sfc_tx_qstop(sa, tx_queue_id);
1206
1207         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1208
1209         sfc_adapter_unlock(sa);
1210         return 0;
1211 }
1212
1213 #if EFSYS_OPT_RX_SCALE
1214 static int
1215 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1216                           struct rte_eth_rss_conf *rss_conf)
1217 {
1218         struct sfc_adapter *sa = dev->data->dev_private;
1219         struct sfc_port *port = &sa->port;
1220
1221         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1222                 return -ENOTSUP;
1223
1224         if (sa->rss_channels == 0)
1225                 return -EINVAL;
1226
1227         sfc_adapter_lock(sa);
1228
1229         /*
1230          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1231          * hence, conversion is done here to derive a correct set of ETH_RSS
1232          * flags which corresponds to the active EFX configuration stored
1233          * locally in 'sfc_adapter' and kept up-to-date
1234          */
1235         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1236         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1237         if (rss_conf->rss_key != NULL)
1238                 rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1239
1240         sfc_adapter_unlock(sa);
1241
1242         return 0;
1243 }
1244
1245 static int
1246 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1247                         struct rte_eth_rss_conf *rss_conf)
1248 {
1249         struct sfc_adapter *sa = dev->data->dev_private;
1250         struct sfc_port *port = &sa->port;
1251         unsigned int efx_hash_types;
1252         int rc = 0;
1253
1254         if (port->isolated)
1255                 return -ENOTSUP;
1256
1257         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1258                 sfc_err(sa, "RSS is not available");
1259                 return -ENOTSUP;
1260         }
1261
1262         if (sa->rss_channels == 0) {
1263                 sfc_err(sa, "RSS is not configured");
1264                 return -EINVAL;
1265         }
1266
1267         if ((rss_conf->rss_key != NULL) &&
1268             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1269                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1270                         sizeof(sa->rss_key));
1271                 return -EINVAL;
1272         }
1273
1274         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1275                 sfc_err(sa, "unsupported hash functions requested");
1276                 return -EINVAL;
1277         }
1278
1279         sfc_adapter_lock(sa);
1280
1281         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1282
1283         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1284                                    EFX_RX_HASHALG_TOEPLITZ,
1285                                    efx_hash_types, B_TRUE);
1286         if (rc != 0)
1287                 goto fail_scale_mode_set;
1288
1289         if (rss_conf->rss_key != NULL) {
1290                 if (sa->state == SFC_ADAPTER_STARTED) {
1291                         rc = efx_rx_scale_key_set(sa->nic,
1292                                                   EFX_RSS_CONTEXT_DEFAULT,
1293                                                   rss_conf->rss_key,
1294                                                   sizeof(sa->rss_key));
1295                         if (rc != 0)
1296                                 goto fail_scale_key_set;
1297                 }
1298
1299                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1300         }
1301
1302         sa->rss_hash_types = efx_hash_types;
1303
1304         sfc_adapter_unlock(sa);
1305
1306         return 0;
1307
1308 fail_scale_key_set:
1309         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1310                                   EFX_RX_HASHALG_TOEPLITZ,
1311                                   sa->rss_hash_types, B_TRUE) != 0)
1312                 sfc_err(sa, "failed to restore RSS mode");
1313
1314 fail_scale_mode_set:
1315         sfc_adapter_unlock(sa);
1316         return -rc;
1317 }
1318
1319 static int
1320 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1321                        struct rte_eth_rss_reta_entry64 *reta_conf,
1322                        uint16_t reta_size)
1323 {
1324         struct sfc_adapter *sa = dev->data->dev_private;
1325         struct sfc_port *port = &sa->port;
1326         int entry;
1327
1328         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1329                 return -ENOTSUP;
1330
1331         if (sa->rss_channels == 0)
1332                 return -EINVAL;
1333
1334         if (reta_size != EFX_RSS_TBL_SIZE)
1335                 return -EINVAL;
1336
1337         sfc_adapter_lock(sa);
1338
1339         for (entry = 0; entry < reta_size; entry++) {
1340                 int grp = entry / RTE_RETA_GROUP_SIZE;
1341                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1342
1343                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1344                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1345         }
1346
1347         sfc_adapter_unlock(sa);
1348
1349         return 0;
1350 }
1351
1352 static int
1353 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1354                         struct rte_eth_rss_reta_entry64 *reta_conf,
1355                         uint16_t reta_size)
1356 {
1357         struct sfc_adapter *sa = dev->data->dev_private;
1358         struct sfc_port *port = &sa->port;
1359         unsigned int *rss_tbl_new;
1360         uint16_t entry;
1361         int rc = 0;
1362
1363
1364         if (port->isolated)
1365                 return -ENOTSUP;
1366
1367         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1368                 sfc_err(sa, "RSS is not available");
1369                 return -ENOTSUP;
1370         }
1371
1372         if (sa->rss_channels == 0) {
1373                 sfc_err(sa, "RSS is not configured");
1374                 return -EINVAL;
1375         }
1376
1377         if (reta_size != EFX_RSS_TBL_SIZE) {
1378                 sfc_err(sa, "RETA size is wrong (should be %u)",
1379                         EFX_RSS_TBL_SIZE);
1380                 return -EINVAL;
1381         }
1382
1383         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1384         if (rss_tbl_new == NULL)
1385                 return -ENOMEM;
1386
1387         sfc_adapter_lock(sa);
1388
1389         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1390
1391         for (entry = 0; entry < reta_size; entry++) {
1392                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1393                 struct rte_eth_rss_reta_entry64 *grp;
1394
1395                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1396
1397                 if (grp->mask & (1ull << grp_idx)) {
1398                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1399                                 rc = EINVAL;
1400                                 goto bad_reta_entry;
1401                         }
1402                         rss_tbl_new[entry] = grp->reta[grp_idx];
1403                 }
1404         }
1405
1406         if (sa->state == SFC_ADAPTER_STARTED) {
1407                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1408                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1409                 if (rc != 0)
1410                         goto fail_scale_tbl_set;
1411         }
1412
1413         rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1414
1415 fail_scale_tbl_set:
1416 bad_reta_entry:
1417         sfc_adapter_unlock(sa);
1418
1419         rte_free(rss_tbl_new);
1420
1421         SFC_ASSERT(rc >= 0);
1422         return -rc;
1423 }
1424 #endif
1425
1426 static int
1427 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1428                     enum rte_filter_op filter_op,
1429                     void *arg)
1430 {
1431         struct sfc_adapter *sa = dev->data->dev_private;
1432         int rc = ENOTSUP;
1433
1434         sfc_log_init(sa, "entry");
1435
1436         switch (filter_type) {
1437         case RTE_ETH_FILTER_NONE:
1438                 sfc_err(sa, "Global filters configuration not supported");
1439                 break;
1440         case RTE_ETH_FILTER_MACVLAN:
1441                 sfc_err(sa, "MACVLAN filters not supported");
1442                 break;
1443         case RTE_ETH_FILTER_ETHERTYPE:
1444                 sfc_err(sa, "EtherType filters not supported");
1445                 break;
1446         case RTE_ETH_FILTER_FLEXIBLE:
1447                 sfc_err(sa, "Flexible filters not supported");
1448                 break;
1449         case RTE_ETH_FILTER_SYN:
1450                 sfc_err(sa, "SYN filters not supported");
1451                 break;
1452         case RTE_ETH_FILTER_NTUPLE:
1453                 sfc_err(sa, "NTUPLE filters not supported");
1454                 break;
1455         case RTE_ETH_FILTER_TUNNEL:
1456                 sfc_err(sa, "Tunnel filters not supported");
1457                 break;
1458         case RTE_ETH_FILTER_FDIR:
1459                 sfc_err(sa, "Flow Director filters not supported");
1460                 break;
1461         case RTE_ETH_FILTER_HASH:
1462                 sfc_err(sa, "Hash filters not supported");
1463                 break;
1464         case RTE_ETH_FILTER_GENERIC:
1465                 if (filter_op != RTE_ETH_FILTER_GET) {
1466                         rc = EINVAL;
1467                 } else {
1468                         *(const void **)arg = &sfc_flow_ops;
1469                         rc = 0;
1470                 }
1471                 break;
1472         default:
1473                 sfc_err(sa, "Unknown filter type %u", filter_type);
1474                 break;
1475         }
1476
1477         sfc_log_init(sa, "exit: %d", -rc);
1478         SFC_ASSERT(rc >= 0);
1479         return -rc;
1480 }
1481
1482 static const struct eth_dev_ops sfc_eth_dev_ops = {
1483         .dev_configure                  = sfc_dev_configure,
1484         .dev_start                      = sfc_dev_start,
1485         .dev_stop                       = sfc_dev_stop,
1486         .dev_set_link_up                = sfc_dev_set_link_up,
1487         .dev_set_link_down              = sfc_dev_set_link_down,
1488         .dev_close                      = sfc_dev_close,
1489         .promiscuous_enable             = sfc_dev_promisc_enable,
1490         .promiscuous_disable            = sfc_dev_promisc_disable,
1491         .allmulticast_enable            = sfc_dev_allmulti_enable,
1492         .allmulticast_disable           = sfc_dev_allmulti_disable,
1493         .link_update                    = sfc_dev_link_update,
1494         .stats_get                      = sfc_stats_get,
1495         .stats_reset                    = sfc_stats_reset,
1496         .xstats_get                     = sfc_xstats_get,
1497         .xstats_reset                   = sfc_stats_reset,
1498         .xstats_get_names               = sfc_xstats_get_names,
1499         .dev_infos_get                  = sfc_dev_infos_get,
1500         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1501         .mtu_set                        = sfc_dev_set_mtu,
1502         .rx_queue_start                 = sfc_rx_queue_start,
1503         .rx_queue_stop                  = sfc_rx_queue_stop,
1504         .tx_queue_start                 = sfc_tx_queue_start,
1505         .tx_queue_stop                  = sfc_tx_queue_stop,
1506         .rx_queue_setup                 = sfc_rx_queue_setup,
1507         .rx_queue_release               = sfc_rx_queue_release,
1508         .rx_queue_count                 = sfc_rx_queue_count,
1509         .rx_descriptor_done             = sfc_rx_descriptor_done,
1510         .rx_descriptor_status           = sfc_rx_descriptor_status,
1511         .tx_descriptor_status           = sfc_tx_descriptor_status,
1512         .tx_queue_setup                 = sfc_tx_queue_setup,
1513         .tx_queue_release               = sfc_tx_queue_release,
1514         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1515         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1516         .mac_addr_set                   = sfc_mac_addr_set,
1517 #if EFSYS_OPT_RX_SCALE
1518         .reta_update                    = sfc_dev_rss_reta_update,
1519         .reta_query                     = sfc_dev_rss_reta_query,
1520         .rss_hash_update                = sfc_dev_rss_hash_update,
1521         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1522 #endif
1523         .filter_ctrl                    = sfc_dev_filter_ctrl,
1524         .set_mc_addr_list               = sfc_set_mc_addr_list,
1525         .rxq_info_get                   = sfc_rx_queue_info_get,
1526         .txq_info_get                   = sfc_tx_queue_info_get,
1527         .fw_version_get                 = sfc_fw_version_get,
1528         .xstats_get_by_id               = sfc_xstats_get_by_id,
1529         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1530 };
1531
1532 /**
1533  * Duplicate a string in potentially shared memory required for
1534  * multi-process support.
1535  *
1536  * strdup() allocates from process-local heap/memory.
1537  */
1538 static char *
1539 sfc_strdup(const char *str)
1540 {
1541         size_t size;
1542         char *copy;
1543
1544         if (str == NULL)
1545                 return NULL;
1546
1547         size = strlen(str) + 1;
1548         copy = rte_malloc(__func__, size, 0);
1549         if (copy != NULL)
1550                 rte_memcpy(copy, str, size);
1551
1552         return copy;
1553 }
1554
1555 static int
1556 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1557 {
1558         struct sfc_adapter *sa = dev->data->dev_private;
1559         unsigned int avail_caps = 0;
1560         const char *rx_name = NULL;
1561         const char *tx_name = NULL;
1562         int rc;
1563
1564         switch (sa->family) {
1565         case EFX_FAMILY_HUNTINGTON:
1566         case EFX_FAMILY_MEDFORD:
1567                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1568                 break;
1569         default:
1570                 break;
1571         }
1572
1573         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1574                                 sfc_kvarg_string_handler, &rx_name);
1575         if (rc != 0)
1576                 goto fail_kvarg_rx_datapath;
1577
1578         if (rx_name != NULL) {
1579                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1580                 if (sa->dp_rx == NULL) {
1581                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1582                         rc = ENOENT;
1583                         goto fail_dp_rx;
1584                 }
1585                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1586                         sfc_err(sa,
1587                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1588                                 rx_name);
1589                         rc = EINVAL;
1590                         goto fail_dp_rx_caps;
1591                 }
1592         } else {
1593                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1594                 if (sa->dp_rx == NULL) {
1595                         sfc_err(sa, "Rx datapath by caps %#x not found",
1596                                 avail_caps);
1597                         rc = ENOENT;
1598                         goto fail_dp_rx;
1599                 }
1600         }
1601
1602         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1603         if (sa->dp_rx_name == NULL) {
1604                 rc = ENOMEM;
1605                 goto fail_dp_rx_name;
1606         }
1607
1608         sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1609
1610         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1611
1612         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1613                                 sfc_kvarg_string_handler, &tx_name);
1614         if (rc != 0)
1615                 goto fail_kvarg_tx_datapath;
1616
1617         if (tx_name != NULL) {
1618                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1619                 if (sa->dp_tx == NULL) {
1620                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1621                         rc = ENOENT;
1622                         goto fail_dp_tx;
1623                 }
1624                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1625                         sfc_err(sa,
1626                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1627                                 tx_name);
1628                         rc = EINVAL;
1629                         goto fail_dp_tx_caps;
1630                 }
1631         } else {
1632                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1633                 if (sa->dp_tx == NULL) {
1634                         sfc_err(sa, "Tx datapath by caps %#x not found",
1635                                 avail_caps);
1636                         rc = ENOENT;
1637                         goto fail_dp_tx;
1638                 }
1639         }
1640
1641         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1642         if (sa->dp_tx_name == NULL) {
1643                 rc = ENOMEM;
1644                 goto fail_dp_tx_name;
1645         }
1646
1647         sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1648
1649         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1650
1651         dev->dev_ops = &sfc_eth_dev_ops;
1652
1653         return 0;
1654
1655 fail_dp_tx_name:
1656 fail_dp_tx_caps:
1657         sa->dp_tx = NULL;
1658
1659 fail_dp_tx:
1660 fail_kvarg_tx_datapath:
1661         rte_free(sa->dp_rx_name);
1662         sa->dp_rx_name = NULL;
1663
1664 fail_dp_rx_name:
1665 fail_dp_rx_caps:
1666         sa->dp_rx = NULL;
1667
1668 fail_dp_rx:
1669 fail_kvarg_rx_datapath:
1670         return rc;
1671 }
1672
1673 static void
1674 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1675 {
1676         struct sfc_adapter *sa = dev->data->dev_private;
1677
1678         dev->dev_ops = NULL;
1679         dev->rx_pkt_burst = NULL;
1680         dev->tx_pkt_burst = NULL;
1681
1682         rte_free(sa->dp_tx_name);
1683         sa->dp_tx_name = NULL;
1684         sa->dp_tx = NULL;
1685
1686         rte_free(sa->dp_rx_name);
1687         sa->dp_rx_name = NULL;
1688         sa->dp_rx = NULL;
1689 }
1690
1691 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1692         .rxq_info_get                   = sfc_rx_queue_info_get,
1693         .txq_info_get                   = sfc_tx_queue_info_get,
1694 };
1695
1696 static int
1697 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1698 {
1699         /*
1700          * Device private data has really many process-local pointers.
1701          * Below code should be extremely careful to use data located
1702          * in shared memory only.
1703          */
1704         struct sfc_adapter *sa = dev->data->dev_private;
1705         const struct sfc_dp_rx *dp_rx;
1706         const struct sfc_dp_tx *dp_tx;
1707         int rc;
1708
1709         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1710         if (dp_rx == NULL) {
1711                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1712                 rc = ENOENT;
1713                 goto fail_dp_rx;
1714         }
1715         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1716                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1717                         sa->dp_tx_name);
1718                 rc = EINVAL;
1719                 goto fail_dp_rx_multi_process;
1720         }
1721
1722         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1723         if (dp_tx == NULL) {
1724                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1725                 rc = ENOENT;
1726                 goto fail_dp_tx;
1727         }
1728         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1729                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1730                         sa->dp_tx_name);
1731                 rc = EINVAL;
1732                 goto fail_dp_tx_multi_process;
1733         }
1734
1735         dev->rx_pkt_burst = dp_rx->pkt_burst;
1736         dev->tx_pkt_burst = dp_tx->pkt_burst;
1737         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1738
1739         return 0;
1740
1741 fail_dp_tx_multi_process:
1742 fail_dp_tx:
1743 fail_dp_rx_multi_process:
1744 fail_dp_rx:
1745         return rc;
1746 }
1747
1748 static void
1749 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1750 {
1751         dev->dev_ops = NULL;
1752         dev->tx_pkt_burst = NULL;
1753         dev->rx_pkt_burst = NULL;
1754 }
1755
1756 static void
1757 sfc_register_dp(void)
1758 {
1759         /* Register once */
1760         if (TAILQ_EMPTY(&sfc_dp_head)) {
1761                 /* Prefer EF10 datapath */
1762                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1763                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1764
1765                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1766                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1767                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1768         }
1769 }
1770
1771 static int
1772 sfc_eth_dev_init(struct rte_eth_dev *dev)
1773 {
1774         struct sfc_adapter *sa = dev->data->dev_private;
1775         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1776         int rc;
1777         const efx_nic_cfg_t *encp;
1778         const struct ether_addr *from;
1779
1780         sfc_register_dp();
1781
1782         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1783                 return -sfc_eth_dev_secondary_set_ops(dev);
1784
1785         /* Required for logging */
1786         sa->pci_addr = pci_dev->addr;
1787         sa->port_id = dev->data->port_id;
1788
1789         sa->eth_dev = dev;
1790
1791         /* Copy PCI device info to the dev->data */
1792         rte_eth_copy_pci_info(dev, pci_dev);
1793
1794         rc = sfc_kvargs_parse(sa);
1795         if (rc != 0)
1796                 goto fail_kvargs_parse;
1797
1798         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1799                                 sfc_kvarg_bool_handler, &sa->debug_init);
1800         if (rc != 0)
1801                 goto fail_kvarg_debug_init;
1802
1803         sfc_log_init(sa, "entry");
1804
1805         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1806         if (dev->data->mac_addrs == NULL) {
1807                 rc = ENOMEM;
1808                 goto fail_mac_addrs;
1809         }
1810
1811         sfc_adapter_lock_init(sa);
1812         sfc_adapter_lock(sa);
1813
1814         sfc_log_init(sa, "probing");
1815         rc = sfc_probe(sa);
1816         if (rc != 0)
1817                 goto fail_probe;
1818
1819         sfc_log_init(sa, "set device ops");
1820         rc = sfc_eth_dev_set_ops(dev);
1821         if (rc != 0)
1822                 goto fail_set_ops;
1823
1824         sfc_log_init(sa, "attaching");
1825         rc = sfc_attach(sa);
1826         if (rc != 0)
1827                 goto fail_attach;
1828
1829         encp = efx_nic_cfg_get(sa->nic);
1830
1831         /*
1832          * The arguments are really reverse order in comparison to
1833          * Linux kernel. Copy from NIC config to Ethernet device data.
1834          */
1835         from = (const struct ether_addr *)(encp->enc_mac_addr);
1836         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1837
1838         sfc_adapter_unlock(sa);
1839
1840         sfc_log_init(sa, "done");
1841         return 0;
1842
1843 fail_attach:
1844         sfc_eth_dev_clear_ops(dev);
1845
1846 fail_set_ops:
1847         sfc_unprobe(sa);
1848
1849 fail_probe:
1850         sfc_adapter_unlock(sa);
1851         sfc_adapter_lock_fini(sa);
1852         rte_free(dev->data->mac_addrs);
1853         dev->data->mac_addrs = NULL;
1854
1855 fail_mac_addrs:
1856 fail_kvarg_debug_init:
1857         sfc_kvargs_cleanup(sa);
1858
1859 fail_kvargs_parse:
1860         sfc_log_init(sa, "failed %d", rc);
1861         SFC_ASSERT(rc > 0);
1862         return -rc;
1863 }
1864
1865 static int
1866 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1867 {
1868         struct sfc_adapter *sa;
1869
1870         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1871                 sfc_eth_dev_secondary_clear_ops(dev);
1872                 return 0;
1873         }
1874
1875         sa = dev->data->dev_private;
1876         sfc_log_init(sa, "entry");
1877
1878         sfc_adapter_lock(sa);
1879
1880         sfc_eth_dev_clear_ops(dev);
1881
1882         sfc_detach(sa);
1883         sfc_unprobe(sa);
1884
1885         rte_free(dev->data->mac_addrs);
1886         dev->data->mac_addrs = NULL;
1887
1888         sfc_kvargs_cleanup(sa);
1889
1890         sfc_adapter_unlock(sa);
1891         sfc_adapter_lock_fini(sa);
1892
1893         sfc_log_init(sa, "done");
1894
1895         /* Required for logging, so cleanup last */
1896         sa->eth_dev = NULL;
1897         return 0;
1898 }
1899
1900 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1901         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1902         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1903         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1904         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1905         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1906         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1907         { .vendor_id = 0 /* sentinel */ }
1908 };
1909
1910 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1911         struct rte_pci_device *pci_dev)
1912 {
1913         return rte_eth_dev_pci_generic_probe(pci_dev,
1914                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
1915 }
1916
1917 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
1918 {
1919         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
1920 }
1921
1922 static struct rte_pci_driver sfc_efx_pmd = {
1923         .id_table = pci_id_sfc_efx_map,
1924         .drv_flags =
1925                 RTE_PCI_DRV_INTR_LSC |
1926                 RTE_PCI_DRV_NEED_MAPPING,
1927         .probe = sfc_eth_dev_pci_probe,
1928         .remove = sfc_eth_dev_pci_remove,
1929 };
1930
1931 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
1932 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1933 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
1934 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1935         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
1936         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
1937         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1938         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1939         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1940         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);