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
  39 #include "efx.h"
  40
  41 #include "sfc.h"
  42 #include "sfc_debug.h"
  43 #include "sfc_log.h"
  44 #include "sfc_kvargs.h"
  45 #include "sfc_ev.h"
  46 #include "sfc_rx.h"
  47 #include "sfc_tx.h"
  48 #include "sfc_flow.h"
  49 #include "sfc_dp.h"
  50 #include "sfc_dp_rx.h"
  51
  52 static struct sfc_dp_list sfc_dp_head =
  53         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  54
  55 static int
  56 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  57 {
  58         struct sfc_adapter *sa = dev->data->dev_private;
  59         efx_nic_fw_info_t enfi;
  60         int ret;
  61         int rc;
  62
  63         /*
  64          * Return value of the callback is likely supposed to be
  65          * equal to or greater than 0, nevertheless, if an error
  66          * occurs, it will be desirable to pass it to the caller
  67          */
  68         if ((fw_version == NULL) || (fw_size == 0))
  69                 return -EINVAL;
  70
  71         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  72         if (rc != 0)
  73                 return -rc;
  74
  75         ret = snprintf(fw_version, fw_size,
  76                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  77                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  78                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  79         if (ret < 0)
  80                 return ret;
  81
  82         if (enfi.enfi_dpcpu_fw_ids_valid) {
  83                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  84                 int ret_extra;
  85
  86                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  87                                      fw_size - dpcpu_fw_ids_offset,
  88                                      " rx%" PRIx16 " tx%" PRIx16,
  89                                      enfi.enfi_rx_dpcpu_fw_id,
  90                                      enfi.enfi_tx_dpcpu_fw_id);
  91                 if (ret_extra < 0)
  92                         return ret_extra;
  93
  94                 ret += ret_extra;
  95         }
  96
  97         if (fw_size < (size_t)(++ret))
  98                 return ret;
  99         else
 100                 return 0;
 101 }
 102
 103 static void
 104 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 105 {
 106         struct sfc_adapter *sa = dev->data->dev_private;
 107         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 108
 109         sfc_log_init(sa, "entry");
 110
 111         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 112         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 113
 114         /* Autonegotiation may be disabled */
 115         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 116         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 117                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 118         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 119                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 120         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 121                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 122
 123         dev_info->max_rx_queues = sa->rxq_max;
 124         dev_info->max_tx_queues = sa->txq_max;
 125
 126         /* By default packets are dropped if no descriptors are available */
 127         dev_info->default_rxconf.rx_drop_en = 1;
 128
 129         dev_info->rx_offload_capa =
 130                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 131                 DEV_RX_OFFLOAD_UDP_CKSUM |
 132                 DEV_RX_OFFLOAD_TCP_CKSUM;
 133
 134         if ((encp->enc_tunnel_encapsulations_supported != 0) &&
 135             (sa->dp_rx->features & SFC_DP_RX_FEAT_TUNNELS))
 136                 dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM;
 137
 138         dev_info->tx_offload_capa =
 139                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 140                 DEV_TX_OFFLOAD_UDP_CKSUM |
 141                 DEV_TX_OFFLOAD_TCP_CKSUM;
 142
 143         if (encp->enc_tunnel_encapsulations_supported != 0)
 144                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
 145
 146         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 147         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 148             !encp->enc_hw_tx_insert_vlan_enabled)
 149                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 150         else
 151                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 152
 153         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 154                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 155
 156         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
 157                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
 158
 159         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
 160                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
 161
 162 #if EFSYS_OPT_RX_SCALE
 163         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 164                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 165                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 166                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 167         }
 168 #endif
 169
 170         if (sa->tso)
 171                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 172
 173         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 174         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 175         /* The RXQ hardware requires that the descriptor count is a power
 176          * of 2, but rx_desc_lim cannot properly describe that constraint.
 177          */
 178         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 179
 180         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 181         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 182         /*
 183          * The TXQ hardware requires that the descriptor count is a power
 184          * of 2, but tx_desc_lim cannot properly describe that constraint
 185          */
 186         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 187 }
 188
 189 static const uint32_t *
 190 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 191 {
 192         struct sfc_adapter *sa = dev->data->dev_private;
 193         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 194         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 195
 196         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 197 }
 198
 199 static int
 200 sfc_dev_configure(struct rte_eth_dev *dev)
 201 {
 202         struct rte_eth_dev_data *dev_data = dev->data;
 203         struct sfc_adapter *sa = dev_data->dev_private;
 204         int rc;
 205
 206         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 207                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 208
 209         sfc_adapter_lock(sa);
 210         switch (sa->state) {
 211         case SFC_ADAPTER_CONFIGURED:
 212                 /* FALLTHROUGH */
 213         case SFC_ADAPTER_INITIALIZED:
 214                 rc = sfc_configure(sa);
 215                 break;
 216         default:
 217                 sfc_err(sa, "unexpected adapter state %u to configure",
 218                         sa->state);
 219                 rc = EINVAL;
 220                 break;
 221         }
 222         sfc_adapter_unlock(sa);
 223
 224         sfc_log_init(sa, "done %d", rc);
 225         SFC_ASSERT(rc >= 0);
 226         return -rc;
 227 }
 228
 229 static int
 230 sfc_dev_start(struct rte_eth_dev *dev)
 231 {
 232         struct sfc_adapter *sa = dev->data->dev_private;
 233         int rc;
 234
 235         sfc_log_init(sa, "entry");
 236
 237         sfc_adapter_lock(sa);
 238         rc = sfc_start(sa);
 239         sfc_adapter_unlock(sa);
 240
 241         sfc_log_init(sa, "done %d", rc);
 242         SFC_ASSERT(rc >= 0);
 243         return -rc;
 244 }
 245
 246 static int
 247 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 248 {
 249         struct sfc_adapter *sa = dev->data->dev_private;
 250         struct rte_eth_link *dev_link = &dev->data->dev_link;
 251         struct rte_eth_link old_link;
 252         struct rte_eth_link current_link;
 253
 254         sfc_log_init(sa, "entry");
 255
 256 retry:
 257         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 258         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 259
 260         if (sa->state != SFC_ADAPTER_STARTED) {
 261                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 262                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 263                                          *(uint64_t *)&old_link,
 264                                          *(uint64_t *)&current_link))
 265                         goto retry;
 266         } else if (wait_to_complete) {
 267                 efx_link_mode_t link_mode;
 268
 269                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 270                         link_mode = EFX_LINK_UNKNOWN;
 271                 sfc_port_link_mode_to_info(link_mode, &current_link);
 272
 273                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 274                                          *(uint64_t *)&old_link,
 275                                          *(uint64_t *)&current_link))
 276                         goto retry;
 277         } else {
 278                 sfc_ev_mgmt_qpoll(sa);
 279                 *(int64_t *)&current_link =
 280                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 281         }
 282
 283         if (old_link.link_status != current_link.link_status)
 284                 sfc_info(sa, "Link status is %s",
 285                          current_link.link_status ? "UP" : "DOWN");
 286
 287         return old_link.link_status == current_link.link_status ? 0 : -1;
 288 }
 289
 290 static void
 291 sfc_dev_stop(struct rte_eth_dev *dev)
 292 {
 293         struct sfc_adapter *sa = dev->data->dev_private;
 294
 295         sfc_log_init(sa, "entry");
 296
 297         sfc_adapter_lock(sa);
 298         sfc_stop(sa);
 299         sfc_adapter_unlock(sa);
 300
 301         sfc_log_init(sa, "done");
 302 }
 303
 304 static int
 305 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 306 {
 307         struct sfc_adapter *sa = dev->data->dev_private;
 308         int rc;
 309
 310         sfc_log_init(sa, "entry");
 311
 312         sfc_adapter_lock(sa);
 313         rc = sfc_start(sa);
 314         sfc_adapter_unlock(sa);
 315
 316         SFC_ASSERT(rc >= 0);
 317         return -rc;
 318 }
 319
 320 static int
 321 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 322 {
 323         struct sfc_adapter *sa = dev->data->dev_private;
 324
 325         sfc_log_init(sa, "entry");
 326
 327         sfc_adapter_lock(sa);
 328         sfc_stop(sa);
 329         sfc_adapter_unlock(sa);
 330
 331         return 0;
 332 }
 333
 334 static void
 335 sfc_dev_close(struct rte_eth_dev *dev)
 336 {
 337         struct sfc_adapter *sa = dev->data->dev_private;
 338
 339         sfc_log_init(sa, "entry");
 340
 341         sfc_adapter_lock(sa);
 342         switch (sa->state) {
 343         case SFC_ADAPTER_STARTED:
 344                 sfc_stop(sa);
 345                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 346                 /* FALLTHROUGH */
 347         case SFC_ADAPTER_CONFIGURED:
 348                 sfc_close(sa);
 349                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 350                 /* FALLTHROUGH */
 351         case SFC_ADAPTER_INITIALIZED:
 352                 break;
 353         default:
 354                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 355                 break;
 356         }
 357         sfc_adapter_unlock(sa);
 358
 359         sfc_log_init(sa, "done");
 360 }
 361
 362 static void
 363 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 364                    boolean_t enabled)
 365 {
 366         struct sfc_port *port;
 367         boolean_t *toggle;
 368         struct sfc_adapter *sa = dev->data->dev_private;
 369         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 370         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 371
 372         sfc_adapter_lock(sa);
 373
 374         port = &sa->port;
 375         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 376
 377         if (*toggle != enabled) {
 378                 *toggle = enabled;
 379
 380                 if (port->isolated) {
 381                         sfc_warn(sa, "isolated mode is active on the port");
 382                         sfc_warn(sa, "the change is to be applied on the next "
 383                                      "start provided that isolated mode is "
 384                                      "disabled prior the next start");
 385                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 386                            (sfc_set_rx_mode(sa) != 0)) {
 387                         *toggle = !(enabled);
 388                         sfc_warn(sa, "Failed to %s %s mode",
 389                                  ((enabled) ? "enable" : "disable"), desc);
 390                 }
 391         }
 392
 393         sfc_adapter_unlock(sa);
 394 }
 395
 396 static void
 397 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 398 {
 399         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 400 }
 401
 402 static void
 403 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 404 {
 405         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 406 }
 407
 408 static void
 409 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 410 {
 411         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 412 }
 413
 414 static void
 415 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 416 {
 417         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 418 }
 419
 420 static int
 421 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 422                    uint16_t nb_rx_desc, unsigned int socket_id,
 423                    const struct rte_eth_rxconf *rx_conf,
 424                    struct rte_mempool *mb_pool)
 425 {
 426         struct sfc_adapter *sa = dev->data->dev_private;
 427         int rc;
 428
 429         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 430                      rx_queue_id, nb_rx_desc, socket_id);
 431
 432         sfc_adapter_lock(sa);
 433
 434         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 435                           rx_conf, mb_pool);
 436         if (rc != 0)
 437                 goto fail_rx_qinit;
 438
 439         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 440
 441         sfc_adapter_unlock(sa);
 442
 443         return 0;
 444
 445 fail_rx_qinit:
 446         sfc_adapter_unlock(sa);
 447         SFC_ASSERT(rc > 0);
 448         return -rc;
 449 }
 450
 451 static void
 452 sfc_rx_queue_release(void *queue)
 453 {
 454         struct sfc_dp_rxq *dp_rxq = queue;
 455         struct sfc_rxq *rxq;
 456         struct sfc_adapter *sa;
 457         unsigned int sw_index;
 458
 459         if (dp_rxq == NULL)
 460                 return;
 461
 462         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 463         sa = rxq->evq->sa;
 464         sfc_adapter_lock(sa);
 465
 466         sw_index = sfc_rxq_sw_index(rxq);
 467
 468         sfc_log_init(sa, "RxQ=%u", sw_index);
 469
 470         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 471
 472         sfc_rx_qfini(sa, sw_index);
 473
 474         sfc_adapter_unlock(sa);
 475 }
 476
 477 static int
 478 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 479                    uint16_t nb_tx_desc, unsigned int socket_id,
 480                    const struct rte_eth_txconf *tx_conf)
 481 {
 482         struct sfc_adapter *sa = dev->data->dev_private;
 483         int rc;
 484
 485         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 486                      tx_queue_id, nb_tx_desc, socket_id);
 487
 488         sfc_adapter_lock(sa);
 489
 490         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 491         if (rc != 0)
 492                 goto fail_tx_qinit;
 493
 494         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 495
 496         sfc_adapter_unlock(sa);
 497         return 0;
 498
 499 fail_tx_qinit:
 500         sfc_adapter_unlock(sa);
 501         SFC_ASSERT(rc > 0);
 502         return -rc;
 503 }
 504
 505 static void
 506 sfc_tx_queue_release(void *queue)
 507 {
 508         struct sfc_dp_txq *dp_txq = queue;
 509         struct sfc_txq *txq;
 510         unsigned int sw_index;
 511         struct sfc_adapter *sa;
 512
 513         if (dp_txq == NULL)
 514                 return;
 515
 516         txq = sfc_txq_by_dp_txq(dp_txq);
 517         sw_index = sfc_txq_sw_index(txq);
 518
 519         SFC_ASSERT(txq->evq != NULL);
 520         sa = txq->evq->sa;
 521
 522         sfc_log_init(sa, "TxQ = %u", sw_index);
 523
 524         sfc_adapter_lock(sa);
 525
 526         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 527         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 528
 529         sfc_tx_qfini(sa, sw_index);
 530
 531         sfc_adapter_unlock(sa);
 532 }
 533
 534 static int
 535 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 536 {
 537         struct sfc_adapter *sa = dev->data->dev_private;
 538         struct sfc_port *port = &sa->port;
 539         uint64_t *mac_stats;
 540         int ret;
 541
 542         rte_spinlock_lock(&port->mac_stats_lock);
 543
 544         ret = sfc_port_update_mac_stats(sa);
 545         if (ret != 0)
 546                 goto unlock;
 547
 548         mac_stats = port->mac_stats_buf;
 549
 550         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 551                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 552                 stats->ipackets =
 553                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 554                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 555                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 556                 stats->opackets =
 557                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 558                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 559                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 560                 stats->ibytes =
 561                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 562                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 563                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 564                 stats->obytes =
 565                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 566                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 567                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 568                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 569                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 570                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 571         } else {
 572                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 573                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 574                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 575                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 576                 /*
 577                  * Take into account stats which are whenever supported
 578                  * on EF10. If some stat is not supported by current
 579                  * firmware variant or HW revision, it is guaranteed
 580                  * to be zero in mac_stats.
 581                  */
 582                 stats->imissed =
 583                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 584                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 585                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 586                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 587                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 588                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 589                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 590                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 591                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 592                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 593                 stats->ierrors =
 594                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 595                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 596                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 597                 /* no oerrors counters supported on EF10 */
 598         }
 599
 600 unlock:
 601         rte_spinlock_unlock(&port->mac_stats_lock);
 602         SFC_ASSERT(ret >= 0);
 603         return -ret;
 604 }
 605
 606 static void
 607 sfc_stats_reset(struct rte_eth_dev *dev)
 608 {
 609         struct sfc_adapter *sa = dev->data->dev_private;
 610         struct sfc_port *port = &sa->port;
 611         int rc;
 612
 613         if (sa->state != SFC_ADAPTER_STARTED) {
 614                 /*
 615                  * The operation cannot be done if port is not started; it
 616                  * will be scheduled to be done during the next port start
 617                  */
 618                 port->mac_stats_reset_pending = B_TRUE;
 619                 return;
 620         }
 621
 622         rc = sfc_port_reset_mac_stats(sa);
 623         if (rc != 0)
 624                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 625 }
 626
 627 static int
 628 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 629                unsigned int xstats_count)
 630 {
 631         struct sfc_adapter *sa = dev->data->dev_private;
 632         struct sfc_port *port = &sa->port;
 633         uint64_t *mac_stats;
 634         int rc;
 635         unsigned int i;
 636         int nstats = 0;
 637
 638         rte_spinlock_lock(&port->mac_stats_lock);
 639
 640         rc = sfc_port_update_mac_stats(sa);
 641         if (rc != 0) {
 642                 SFC_ASSERT(rc > 0);
 643                 nstats = -rc;
 644                 goto unlock;
 645         }
 646
 647         mac_stats = port->mac_stats_buf;
 648
 649         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 650                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 651                         if (xstats != NULL && nstats < (int)xstats_count) {
 652                                 xstats[nstats].id = nstats;
 653                                 xstats[nstats].value = mac_stats[i];
 654                         }
 655                         nstats++;
 656                 }
 657         }
 658
 659 unlock:
 660         rte_spinlock_unlock(&port->mac_stats_lock);
 661
 662         return nstats;
 663 }
 664
 665 static int
 666 sfc_xstats_get_names(struct rte_eth_dev *dev,
 667                      struct rte_eth_xstat_name *xstats_names,
 668                      unsigned int xstats_count)
 669 {
 670         struct sfc_adapter *sa = dev->data->dev_private;
 671         struct sfc_port *port = &sa->port;
 672         unsigned int i;
 673         unsigned int nstats = 0;
 674
 675         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 676                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 677                         if (xstats_names != NULL && nstats < xstats_count)
 678                                 strncpy(xstats_names[nstats].name,
 679                                         efx_mac_stat_name(sa->nic, i),
 680                                         sizeof(xstats_names[0].name));
 681                         nstats++;
 682                 }
 683         }
 684
 685         return nstats;
 686 }
 687
 688 static int
 689 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 690                      uint64_t *values, unsigned int n)
 691 {
 692         struct sfc_adapter *sa = dev->data->dev_private;
 693         struct sfc_port *port = &sa->port;
 694         uint64_t *mac_stats;
 695         unsigned int nb_supported = 0;
 696         unsigned int nb_written = 0;
 697         unsigned int i;
 698         int ret;
 699         int rc;
 700
 701         if (unlikely(values == NULL) ||
 702             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 703                 return port->mac_stats_nb_supported;
 704
 705         rte_spinlock_lock(&port->mac_stats_lock);
 706
 707         rc = sfc_port_update_mac_stats(sa);
 708         if (rc != 0) {
 709                 SFC_ASSERT(rc > 0);
 710                 ret = -rc;
 711                 goto unlock;
 712         }
 713
 714         mac_stats = port->mac_stats_buf;
 715
 716         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 717                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 718                         continue;
 719
 720                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 721                         values[nb_written++] = mac_stats[i];
 722
 723                 ++nb_supported;
 724         }
 725
 726         ret = nb_written;
 727
 728 unlock:
 729         rte_spinlock_unlock(&port->mac_stats_lock);
 730
 731         return ret;
 732 }
 733
 734 static int
 735 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 736                            struct rte_eth_xstat_name *xstats_names,
 737                            const uint64_t *ids, unsigned int size)
 738 {
 739         struct sfc_adapter *sa = dev->data->dev_private;
 740         struct sfc_port *port = &sa->port;
 741         unsigned int nb_supported = 0;
 742         unsigned int nb_written = 0;
 743         unsigned int i;
 744
 745         if (unlikely(xstats_names == NULL) ||
 746             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 747                 return port->mac_stats_nb_supported;
 748
 749         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 750                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 751                         continue;
 752
 753                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 754                         char *name = xstats_names[nb_written++].name;
 755
 756                         strncpy(name, efx_mac_stat_name(sa->nic, i),
 757                                 sizeof(xstats_names[0].name));
 758                         name[sizeof(xstats_names[0].name) - 1] = '\0';
 759                 }
 760
 761                 ++nb_supported;
 762         }
 763
 764         return nb_written;
 765 }
 766
 767 static int
 768 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 769 {
 770         struct sfc_adapter *sa = dev->data->dev_private;
 771         unsigned int wanted_fc, link_fc;
 772
 773         memset(fc_conf, 0, sizeof(*fc_conf));
 774
 775         sfc_adapter_lock(sa);
 776
 777         if (sa->state == SFC_ADAPTER_STARTED)
 778                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 779         else
 780                 link_fc = sa->port.flow_ctrl;
 781
 782         switch (link_fc) {
 783         case 0:
 784                 fc_conf->mode = RTE_FC_NONE;
 785                 break;
 786         case EFX_FCNTL_RESPOND:
 787                 fc_conf->mode = RTE_FC_RX_PAUSE;
 788                 break;
 789         case EFX_FCNTL_GENERATE:
 790                 fc_conf->mode = RTE_FC_TX_PAUSE;
 791                 break;
 792         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 793                 fc_conf->mode = RTE_FC_FULL;
 794                 break;
 795         default:
 796                 sfc_err(sa, "%s: unexpected flow control value %#x",
 797                         __func__, link_fc);
 798         }
 799
 800         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 801
 802         sfc_adapter_unlock(sa);
 803
 804         return 0;
 805 }
 806
 807 static int
 808 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 809 {
 810         struct sfc_adapter *sa = dev->data->dev_private;
 811         struct sfc_port *port = &sa->port;
 812         unsigned int fcntl;
 813         int rc;
 814
 815         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 816             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 817             fc_conf->mac_ctrl_frame_fwd != 0) {
 818                 sfc_err(sa, "unsupported flow control settings specified");
 819                 rc = EINVAL;
 820                 goto fail_inval;
 821         }
 822
 823         switch (fc_conf->mode) {
 824         case RTE_FC_NONE:
 825                 fcntl = 0;
 826                 break;
 827         case RTE_FC_RX_PAUSE:
 828                 fcntl = EFX_FCNTL_RESPOND;
 829                 break;
 830         case RTE_FC_TX_PAUSE:
 831                 fcntl = EFX_FCNTL_GENERATE;
 832                 break;
 833         case RTE_FC_FULL:
 834                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 835                 break;
 836         default:
 837                 rc = EINVAL;
 838                 goto fail_inval;
 839         }
 840
 841         sfc_adapter_lock(sa);
 842
 843         if (sa->state == SFC_ADAPTER_STARTED) {
 844                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 845                 if (rc != 0)
 846                         goto fail_mac_fcntl_set;
 847         }
 848
 849         port->flow_ctrl = fcntl;
 850         port->flow_ctrl_autoneg = fc_conf->autoneg;
 851
 852         sfc_adapter_unlock(sa);
 853
 854         return 0;
 855
 856 fail_mac_fcntl_set:
 857         sfc_adapter_unlock(sa);
 858 fail_inval:
 859         SFC_ASSERT(rc > 0);
 860         return -rc;
 861 }
 862
 863 static int
 864 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 865 {
 866         struct sfc_adapter *sa = dev->data->dev_private;
 867         size_t pdu = EFX_MAC_PDU(mtu);
 868         size_t old_pdu;
 869         int rc;
 870
 871         sfc_log_init(sa, "mtu=%u", mtu);
 872
 873         rc = EINVAL;
 874         if (pdu < EFX_MAC_PDU_MIN) {
 875                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 876                         (unsigned int)mtu, (unsigned int)pdu,
 877                         EFX_MAC_PDU_MIN);
 878                 goto fail_inval;
 879         }
 880         if (pdu > EFX_MAC_PDU_MAX) {
 881                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 882                         (unsigned int)mtu, (unsigned int)pdu,
 883                         EFX_MAC_PDU_MAX);
 884                 goto fail_inval;
 885         }
 886
 887         sfc_adapter_lock(sa);
 888
 889         if (pdu != sa->port.pdu) {
 890                 if (sa->state == SFC_ADAPTER_STARTED) {
 891                         sfc_stop(sa);
 892
 893                         old_pdu = sa->port.pdu;
 894                         sa->port.pdu = pdu;
 895                         rc = sfc_start(sa);
 896                         if (rc != 0)
 897                                 goto fail_start;
 898                 } else {
 899                         sa->port.pdu = pdu;
 900                 }
 901         }
 902
 903         /*
 904          * The driver does not use it, but other PMDs update jumbo_frame
 905          * flag and max_rx_pkt_len when MTU is set.
 906          */
 907         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 908         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 909
 910         sfc_adapter_unlock(sa);
 911
 912         sfc_log_init(sa, "done");
 913         return 0;
 914
 915 fail_start:
 916         sa->port.pdu = old_pdu;
 917         if (sfc_start(sa) != 0)
 918                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 919                         "PDU max size - port is stopped",
 920                         (unsigned int)pdu, (unsigned int)old_pdu);
 921         sfc_adapter_unlock(sa);
 922
 923 fail_inval:
 924         sfc_log_init(sa, "failed %d", rc);
 925         SFC_ASSERT(rc > 0);
 926         return -rc;
 927 }
 928 static void
 929 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 930 {
 931         struct sfc_adapter *sa = dev->data->dev_private;
 932         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 933         struct sfc_port *port = &sa->port;
 934         int rc;
 935
 936         sfc_adapter_lock(sa);
 937
 938         /*
 939          * Copy the address to the device private data so that
 940          * it could be recalled in the case of adapter restart.
 941          */
 942         ether_addr_copy(mac_addr, &port->default_mac_addr);
 943
 944         if (port->isolated) {
 945                 sfc_err(sa, "isolated mode is active on the port");
 946                 sfc_err(sa, "will not set MAC address");
 947                 goto unlock;
 948         }
 949
 950         if (sa->state != SFC_ADAPTER_STARTED) {
 951                 sfc_info(sa, "the port is not started");
 952                 sfc_info(sa, "the new MAC address will be set on port start");
 953
 954                 goto unlock;
 955         }
 956
 957         if (encp->enc_allow_set_mac_with_installed_filters) {
 958                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 959                 if (rc != 0) {
 960                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 961                         goto unlock;
 962                 }
 963
 964                 /*
 965                  * Changing the MAC address by means of MCDI request
 966                  * has no effect on received traffic, therefore
 967                  * we also need to update unicast filters
 968                  */
 969                 rc = sfc_set_rx_mode(sa);
 970                 if (rc != 0)
 971                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 972         } else {
 973                 sfc_warn(sa, "cannot set MAC address with filters installed");
 974                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 975                 sfc_warn(sa, "(some traffic may be dropped)");
 976
 977                 /*
 978                  * Since setting MAC address with filters installed is not
 979                  * allowed on the adapter, the new MAC address will be set
 980                  * by means of adapter restart. sfc_start() shall retrieve
 981                  * the new address from the device private data and set it.
 982                  */
 983                 sfc_stop(sa);
 984                 rc = sfc_start(sa);
 985                 if (rc != 0)
 986                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 987         }
 988
 989 unlock:
 990         /*
 991          * In the case of failure sa->port->default_mac_addr does not
 992          * need rollback since no error code is returned, and the upper
 993          * API will anyway update the external MAC address storage.
 994          * To be consistent with that new value it is better to keep
 995          * the device private value the same.
 996          */
 997         sfc_adapter_unlock(sa);
 998 }
 999
1000
1001 static int
1002 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
1003                      uint32_t nb_mc_addr)
1004 {
1005         struct sfc_adapter *sa = dev->data->dev_private;
1006         struct sfc_port *port = &sa->port;
1007         uint8_t *mc_addrs = port->mcast_addrs;
1008         int rc;
1009         unsigned int i;
1010
1011         if (port->isolated) {
1012                 sfc_err(sa, "isolated mode is active on the port");
1013                 sfc_err(sa, "will not set multicast address list");
1014                 return -ENOTSUP;
1015         }
1016
1017         if (mc_addrs == NULL)
1018                 return -ENOBUFS;
1019
1020         if (nb_mc_addr > port->max_mcast_addrs) {
1021                 sfc_err(sa, "too many multicast addresses: %u > %u",
1022                          nb_mc_addr, port->max_mcast_addrs);
1023                 return -EINVAL;
1024         }
1025
1026         for (i = 0; i < nb_mc_addr; ++i) {
1027                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1028                                  EFX_MAC_ADDR_LEN);
1029                 mc_addrs += EFX_MAC_ADDR_LEN;
1030         }
1031
1032         port->nb_mcast_addrs = nb_mc_addr;
1033
1034         if (sa->state != SFC_ADAPTER_STARTED)
1035                 return 0;
1036
1037         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1038                                         port->nb_mcast_addrs);
1039         if (rc != 0)
1040                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1041
1042         SFC_ASSERT(rc > 0);
1043         return -rc;
1044 }
1045
1046 /*
1047  * The function is used by the secondary process as well. It must not
1048  * use any process-local pointers from the adapter data.
1049  */
1050 static void
1051 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1052                       struct rte_eth_rxq_info *qinfo)
1053 {
1054         struct sfc_adapter *sa = dev->data->dev_private;
1055         struct sfc_rxq_info *rxq_info;
1056         struct sfc_rxq *rxq;
1057
1058         sfc_adapter_lock(sa);
1059
1060         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1061
1062         rxq_info = &sa->rxq_info[rx_queue_id];
1063         rxq = rxq_info->rxq;
1064         SFC_ASSERT(rxq != NULL);
1065
1066         qinfo->mp = rxq->refill_mb_pool;
1067         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1068         qinfo->conf.rx_drop_en = 1;
1069         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1070         qinfo->scattered_rx =
1071                 ((rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) != 0);
1072         qinfo->nb_desc = rxq_info->entries;
1073
1074         sfc_adapter_unlock(sa);
1075 }
1076
1077 /*
1078  * The function is used by the secondary process as well. It must not
1079  * use any process-local pointers from the adapter data.
1080  */
1081 static void
1082 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1083                       struct rte_eth_txq_info *qinfo)
1084 {
1085         struct sfc_adapter *sa = dev->data->dev_private;
1086         struct sfc_txq_info *txq_info;
1087
1088         sfc_adapter_lock(sa);
1089
1090         SFC_ASSERT(tx_queue_id < sa->txq_count);
1091
1092         txq_info = &sa->txq_info[tx_queue_id];
1093         SFC_ASSERT(txq_info->txq != NULL);
1094
1095         memset(qinfo, 0, sizeof(*qinfo));
1096
1097         qinfo->conf.txq_flags = txq_info->txq->flags;
1098         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1099         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1100         qinfo->nb_desc = txq_info->entries;
1101
1102         sfc_adapter_unlock(sa);
1103 }
1104
1105 static uint32_t
1106 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1107 {
1108         struct sfc_adapter *sa = dev->data->dev_private;
1109
1110         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1111
1112         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1113 }
1114
1115 static int
1116 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1117 {
1118         struct sfc_dp_rxq *dp_rxq = queue;
1119
1120         return sfc_rx_qdesc_done(dp_rxq, offset);
1121 }
1122
1123 static int
1124 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1125 {
1126         struct sfc_dp_rxq *dp_rxq = queue;
1127         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1128
1129         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1130 }
1131
1132 static int
1133 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1134 {
1135         struct sfc_dp_txq *dp_txq = queue;
1136         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1137
1138         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1139 }
1140
1141 static int
1142 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1143 {
1144         struct sfc_adapter *sa = dev->data->dev_private;
1145         int rc;
1146
1147         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1148
1149         sfc_adapter_lock(sa);
1150
1151         rc = EINVAL;
1152         if (sa->state != SFC_ADAPTER_STARTED)
1153                 goto fail_not_started;
1154
1155         rc = sfc_rx_qstart(sa, rx_queue_id);
1156         if (rc != 0)
1157                 goto fail_rx_qstart;
1158
1159         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1160
1161         sfc_adapter_unlock(sa);
1162
1163         return 0;
1164
1165 fail_rx_qstart:
1166 fail_not_started:
1167         sfc_adapter_unlock(sa);
1168         SFC_ASSERT(rc > 0);
1169         return -rc;
1170 }
1171
1172 static int
1173 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1174 {
1175         struct sfc_adapter *sa = dev->data->dev_private;
1176
1177         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1178
1179         sfc_adapter_lock(sa);
1180         sfc_rx_qstop(sa, rx_queue_id);
1181
1182         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1183
1184         sfc_adapter_unlock(sa);
1185
1186         return 0;
1187 }
1188
1189 static int
1190 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1191 {
1192         struct sfc_adapter *sa = dev->data->dev_private;
1193         int rc;
1194
1195         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1196
1197         sfc_adapter_lock(sa);
1198
1199         rc = EINVAL;
1200         if (sa->state != SFC_ADAPTER_STARTED)
1201                 goto fail_not_started;
1202
1203         rc = sfc_tx_qstart(sa, tx_queue_id);
1204         if (rc != 0)
1205                 goto fail_tx_qstart;
1206
1207         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1208
1209         sfc_adapter_unlock(sa);
1210         return 0;
1211
1212 fail_tx_qstart:
1213
1214 fail_not_started:
1215         sfc_adapter_unlock(sa);
1216         SFC_ASSERT(rc > 0);
1217         return -rc;
1218 }
1219
1220 static int
1221 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1222 {
1223         struct sfc_adapter *sa = dev->data->dev_private;
1224
1225         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1226
1227         sfc_adapter_lock(sa);
1228
1229         sfc_tx_qstop(sa, tx_queue_id);
1230
1231         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1232
1233         sfc_adapter_unlock(sa);
1234         return 0;
1235 }
1236
1237 static efx_tunnel_protocol_t
1238 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1239 {
1240         switch (rte_type) {
1241         case RTE_TUNNEL_TYPE_VXLAN:
1242                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1243         case RTE_TUNNEL_TYPE_GENEVE:
1244                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1245         default:
1246                 return EFX_TUNNEL_NPROTOS;
1247         }
1248 }
1249
1250 enum sfc_udp_tunnel_op_e {
1251         SFC_UDP_TUNNEL_ADD_PORT,
1252         SFC_UDP_TUNNEL_DEL_PORT,
1253 };
1254
1255 static int
1256 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1257                       struct rte_eth_udp_tunnel *tunnel_udp,
1258                       enum sfc_udp_tunnel_op_e op)
1259 {
1260         struct sfc_adapter *sa = dev->data->dev_private;
1261         efx_tunnel_protocol_t tunnel_proto;
1262         int rc;
1263
1264         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1265                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1266                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1267                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1268
1269         tunnel_proto =
1270                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1271         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1272                 rc = ENOTSUP;
1273                 goto fail_bad_proto;
1274         }
1275
1276         sfc_adapter_lock(sa);
1277
1278         switch (op) {
1279         case SFC_UDP_TUNNEL_ADD_PORT:
1280                 rc = efx_tunnel_config_udp_add(sa->nic,
1281                                                tunnel_udp->udp_port,
1282                                                tunnel_proto);
1283                 break;
1284         case SFC_UDP_TUNNEL_DEL_PORT:
1285                 rc = efx_tunnel_config_udp_remove(sa->nic,
1286                                                   tunnel_udp->udp_port,
1287                                                   tunnel_proto);
1288                 break;
1289         default:
1290                 rc = EINVAL;
1291                 goto fail_bad_op;
1292         }
1293
1294         if (rc != 0)
1295                 goto fail_op;
1296
1297         if (sa->state == SFC_ADAPTER_STARTED) {
1298                 rc = efx_tunnel_reconfigure(sa->nic);
1299                 if (rc == EAGAIN) {
1300                         /*
1301                          * Configuration is accepted by FW and MC reboot
1302                          * is initiated to apply the changes. MC reboot
1303                          * will be handled in a usual way (MC reboot
1304                          * event on management event queue and adapter
1305                          * restart).
1306                          */
1307                         rc = 0;
1308                 } else if (rc != 0) {
1309                         goto fail_reconfigure;
1310                 }
1311         }
1312
1313         sfc_adapter_unlock(sa);
1314         return 0;
1315
1316 fail_reconfigure:
1317         /* Remove/restore entry since the change makes the trouble */
1318         switch (op) {
1319         case SFC_UDP_TUNNEL_ADD_PORT:
1320                 (void)efx_tunnel_config_udp_remove(sa->nic,
1321                                                    tunnel_udp->udp_port,
1322                                                    tunnel_proto);
1323                 break;
1324         case SFC_UDP_TUNNEL_DEL_PORT:
1325                 (void)efx_tunnel_config_udp_add(sa->nic,
1326                                                 tunnel_udp->udp_port,
1327                                                 tunnel_proto);
1328                 break;
1329         }
1330
1331 fail_op:
1332 fail_bad_op:
1333         sfc_adapter_unlock(sa);
1334
1335 fail_bad_proto:
1336         SFC_ASSERT(rc > 0);
1337         return -rc;
1338 }
1339
1340 static int
1341 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1342                             struct rte_eth_udp_tunnel *tunnel_udp)
1343 {
1344         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1345 }
1346
1347 static int
1348 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1349                             struct rte_eth_udp_tunnel *tunnel_udp)
1350 {
1351         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1352 }
1353
1354 #if EFSYS_OPT_RX_SCALE
1355 static int
1356 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1357                           struct rte_eth_rss_conf *rss_conf)
1358 {
1359         struct sfc_adapter *sa = dev->data->dev_private;
1360         struct sfc_port *port = &sa->port;
1361
1362         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1363                 return -ENOTSUP;
1364
1365         if (sa->rss_channels == 0)
1366                 return -EINVAL;
1367
1368         sfc_adapter_lock(sa);
1369
1370         /*
1371          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1372          * hence, conversion is done here to derive a correct set of ETH_RSS
1373          * flags which corresponds to the active EFX configuration stored
1374          * locally in 'sfc_adapter' and kept up-to-date
1375          */
1376         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1377         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1378         if (rss_conf->rss_key != NULL)
1379                 rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1380
1381         sfc_adapter_unlock(sa);
1382
1383         return 0;
1384 }
1385
1386 static int
1387 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1388                         struct rte_eth_rss_conf *rss_conf)
1389 {
1390         struct sfc_adapter *sa = dev->data->dev_private;
1391         struct sfc_port *port = &sa->port;
1392         unsigned int efx_hash_types;
1393         int rc = 0;
1394
1395         if (port->isolated)
1396                 return -ENOTSUP;
1397
1398         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1399                 sfc_err(sa, "RSS is not available");
1400                 return -ENOTSUP;
1401         }
1402
1403         if (sa->rss_channels == 0) {
1404                 sfc_err(sa, "RSS is not configured");
1405                 return -EINVAL;
1406         }
1407
1408         if ((rss_conf->rss_key != NULL) &&
1409             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1410                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1411                         sizeof(sa->rss_key));
1412                 return -EINVAL;
1413         }
1414
1415         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1416                 sfc_err(sa, "unsupported hash functions requested");
1417                 return -EINVAL;
1418         }
1419
1420         sfc_adapter_lock(sa);
1421
1422         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1423
1424         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1425                                    EFX_RX_HASHALG_TOEPLITZ,
1426                                    efx_hash_types, B_TRUE);
1427         if (rc != 0)
1428                 goto fail_scale_mode_set;
1429
1430         if (rss_conf->rss_key != NULL) {
1431                 if (sa->state == SFC_ADAPTER_STARTED) {
1432                         rc = efx_rx_scale_key_set(sa->nic,
1433                                                   EFX_RSS_CONTEXT_DEFAULT,
1434                                                   rss_conf->rss_key,
1435                                                   sizeof(sa->rss_key));
1436                         if (rc != 0)
1437                                 goto fail_scale_key_set;
1438                 }
1439
1440                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1441         }
1442
1443         sa->rss_hash_types = efx_hash_types;
1444
1445         sfc_adapter_unlock(sa);
1446
1447         return 0;
1448
1449 fail_scale_key_set:
1450         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1451                                   EFX_RX_HASHALG_TOEPLITZ,
1452                                   sa->rss_hash_types, B_TRUE) != 0)
1453                 sfc_err(sa, "failed to restore RSS mode");
1454
1455 fail_scale_mode_set:
1456         sfc_adapter_unlock(sa);
1457         return -rc;
1458 }
1459
1460 static int
1461 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1462                        struct rte_eth_rss_reta_entry64 *reta_conf,
1463                        uint16_t reta_size)
1464 {
1465         struct sfc_adapter *sa = dev->data->dev_private;
1466         struct sfc_port *port = &sa->port;
1467         int entry;
1468
1469         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1470                 return -ENOTSUP;
1471
1472         if (sa->rss_channels == 0)
1473                 return -EINVAL;
1474
1475         if (reta_size != EFX_RSS_TBL_SIZE)
1476                 return -EINVAL;
1477
1478         sfc_adapter_lock(sa);
1479
1480         for (entry = 0; entry < reta_size; entry++) {
1481                 int grp = entry / RTE_RETA_GROUP_SIZE;
1482                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1483
1484                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1485                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1486         }
1487
1488         sfc_adapter_unlock(sa);
1489
1490         return 0;
1491 }
1492
1493 static int
1494 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1495                         struct rte_eth_rss_reta_entry64 *reta_conf,
1496                         uint16_t reta_size)
1497 {
1498         struct sfc_adapter *sa = dev->data->dev_private;
1499         struct sfc_port *port = &sa->port;
1500         unsigned int *rss_tbl_new;
1501         uint16_t entry;
1502         int rc = 0;
1503
1504
1505         if (port->isolated)
1506                 return -ENOTSUP;
1507
1508         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1509                 sfc_err(sa, "RSS is not available");
1510                 return -ENOTSUP;
1511         }
1512
1513         if (sa->rss_channels == 0) {
1514                 sfc_err(sa, "RSS is not configured");
1515                 return -EINVAL;
1516         }
1517
1518         if (reta_size != EFX_RSS_TBL_SIZE) {
1519                 sfc_err(sa, "RETA size is wrong (should be %u)",
1520                         EFX_RSS_TBL_SIZE);
1521                 return -EINVAL;
1522         }
1523
1524         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1525         if (rss_tbl_new == NULL)
1526                 return -ENOMEM;
1527
1528         sfc_adapter_lock(sa);
1529
1530         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1531
1532         for (entry = 0; entry < reta_size; entry++) {
1533                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1534                 struct rte_eth_rss_reta_entry64 *grp;
1535
1536                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1537
1538                 if (grp->mask & (1ull << grp_idx)) {
1539                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1540                                 rc = EINVAL;
1541                                 goto bad_reta_entry;
1542                         }
1543                         rss_tbl_new[entry] = grp->reta[grp_idx];
1544                 }
1545         }
1546
1547         if (sa->state == SFC_ADAPTER_STARTED) {
1548                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1549                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1550                 if (rc != 0)
1551                         goto fail_scale_tbl_set;
1552         }
1553
1554         rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1555
1556 fail_scale_tbl_set:
1557 bad_reta_entry:
1558         sfc_adapter_unlock(sa);
1559
1560         rte_free(rss_tbl_new);
1561
1562         SFC_ASSERT(rc >= 0);
1563         return -rc;
1564 }
1565 #endif
1566
1567 static int
1568 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1569                     enum rte_filter_op filter_op,
1570                     void *arg)
1571 {
1572         struct sfc_adapter *sa = dev->data->dev_private;
1573         int rc = ENOTSUP;
1574
1575         sfc_log_init(sa, "entry");
1576
1577         switch (filter_type) {
1578         case RTE_ETH_FILTER_NONE:
1579                 sfc_err(sa, "Global filters configuration not supported");
1580                 break;
1581         case RTE_ETH_FILTER_MACVLAN:
1582                 sfc_err(sa, "MACVLAN filters not supported");
1583                 break;
1584         case RTE_ETH_FILTER_ETHERTYPE:
1585                 sfc_err(sa, "EtherType filters not supported");
1586                 break;
1587         case RTE_ETH_FILTER_FLEXIBLE:
1588                 sfc_err(sa, "Flexible filters not supported");
1589                 break;
1590         case RTE_ETH_FILTER_SYN:
1591                 sfc_err(sa, "SYN filters not supported");
1592                 break;
1593         case RTE_ETH_FILTER_NTUPLE:
1594                 sfc_err(sa, "NTUPLE filters not supported");
1595                 break;
1596         case RTE_ETH_FILTER_TUNNEL:
1597                 sfc_err(sa, "Tunnel filters not supported");
1598                 break;
1599         case RTE_ETH_FILTER_FDIR:
1600                 sfc_err(sa, "Flow Director filters not supported");
1601                 break;
1602         case RTE_ETH_FILTER_HASH:
1603                 sfc_err(sa, "Hash filters not supported");
1604                 break;
1605         case RTE_ETH_FILTER_GENERIC:
1606                 if (filter_op != RTE_ETH_FILTER_GET) {
1607                         rc = EINVAL;
1608                 } else {
1609                         *(const void **)arg = &sfc_flow_ops;
1610                         rc = 0;
1611                 }
1612                 break;
1613         default:
1614                 sfc_err(sa, "Unknown filter type %u", filter_type);
1615                 break;
1616         }
1617
1618         sfc_log_init(sa, "exit: %d", -rc);
1619         SFC_ASSERT(rc >= 0);
1620         return -rc;
1621 }
1622
1623 static const struct eth_dev_ops sfc_eth_dev_ops = {
1624         .dev_configure                  = sfc_dev_configure,
1625         .dev_start                      = sfc_dev_start,
1626         .dev_stop                       = sfc_dev_stop,
1627         .dev_set_link_up                = sfc_dev_set_link_up,
1628         .dev_set_link_down              = sfc_dev_set_link_down,
1629         .dev_close                      = sfc_dev_close,
1630         .promiscuous_enable             = sfc_dev_promisc_enable,
1631         .promiscuous_disable            = sfc_dev_promisc_disable,
1632         .allmulticast_enable            = sfc_dev_allmulti_enable,
1633         .allmulticast_disable           = sfc_dev_allmulti_disable,
1634         .link_update                    = sfc_dev_link_update,
1635         .stats_get                      = sfc_stats_get,
1636         .stats_reset                    = sfc_stats_reset,
1637         .xstats_get                     = sfc_xstats_get,
1638         .xstats_reset                   = sfc_stats_reset,
1639         .xstats_get_names               = sfc_xstats_get_names,
1640         .dev_infos_get                  = sfc_dev_infos_get,
1641         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1642         .mtu_set                        = sfc_dev_set_mtu,
1643         .rx_queue_start                 = sfc_rx_queue_start,
1644         .rx_queue_stop                  = sfc_rx_queue_stop,
1645         .tx_queue_start                 = sfc_tx_queue_start,
1646         .tx_queue_stop                  = sfc_tx_queue_stop,
1647         .rx_queue_setup                 = sfc_rx_queue_setup,
1648         .rx_queue_release               = sfc_rx_queue_release,
1649         .rx_queue_count                 = sfc_rx_queue_count,
1650         .rx_descriptor_done             = sfc_rx_descriptor_done,
1651         .rx_descriptor_status           = sfc_rx_descriptor_status,
1652         .tx_descriptor_status           = sfc_tx_descriptor_status,
1653         .tx_queue_setup                 = sfc_tx_queue_setup,
1654         .tx_queue_release               = sfc_tx_queue_release,
1655         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1656         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1657         .mac_addr_set                   = sfc_mac_addr_set,
1658         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1659         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1660 #if EFSYS_OPT_RX_SCALE
1661         .reta_update                    = sfc_dev_rss_reta_update,
1662         .reta_query                     = sfc_dev_rss_reta_query,
1663         .rss_hash_update                = sfc_dev_rss_hash_update,
1664         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1665 #endif
1666         .filter_ctrl                    = sfc_dev_filter_ctrl,
1667         .set_mc_addr_list               = sfc_set_mc_addr_list,
1668         .rxq_info_get                   = sfc_rx_queue_info_get,
1669         .txq_info_get                   = sfc_tx_queue_info_get,
1670         .fw_version_get                 = sfc_fw_version_get,
1671         .xstats_get_by_id               = sfc_xstats_get_by_id,
1672         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1673 };
1674
1675 /**
1676  * Duplicate a string in potentially shared memory required for
1677  * multi-process support.
1678  *
1679  * strdup() allocates from process-local heap/memory.
1680  */
1681 static char *
1682 sfc_strdup(const char *str)
1683 {
1684         size_t size;
1685         char *copy;
1686
1687         if (str == NULL)
1688                 return NULL;
1689
1690         size = strlen(str) + 1;
1691         copy = rte_malloc(__func__, size, 0);
1692         if (copy != NULL)
1693                 rte_memcpy(copy, str, size);
1694
1695         return copy;
1696 }
1697
1698 static int
1699 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1700 {
1701         struct sfc_adapter *sa = dev->data->dev_private;
1702         unsigned int avail_caps = 0;
1703         const char *rx_name = NULL;
1704         const char *tx_name = NULL;
1705         int rc;
1706
1707         switch (sa->family) {
1708         case EFX_FAMILY_HUNTINGTON:
1709         case EFX_FAMILY_MEDFORD:
1710                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1711                 break;
1712         default:
1713                 break;
1714         }
1715
1716         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1717                                 sfc_kvarg_string_handler, &rx_name);
1718         if (rc != 0)
1719                 goto fail_kvarg_rx_datapath;
1720
1721         if (rx_name != NULL) {
1722                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1723                 if (sa->dp_rx == NULL) {
1724                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1725                         rc = ENOENT;
1726                         goto fail_dp_rx;
1727                 }
1728                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1729                         sfc_err(sa,
1730                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1731                                 rx_name);
1732                         rc = EINVAL;
1733                         goto fail_dp_rx_caps;
1734                 }
1735         } else {
1736                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1737                 if (sa->dp_rx == NULL) {
1738                         sfc_err(sa, "Rx datapath by caps %#x not found",
1739                                 avail_caps);
1740                         rc = ENOENT;
1741                         goto fail_dp_rx;
1742                 }
1743         }
1744
1745         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1746         if (sa->dp_rx_name == NULL) {
1747                 rc = ENOMEM;
1748                 goto fail_dp_rx_name;
1749         }
1750
1751         sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1752
1753         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1754
1755         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1756                                 sfc_kvarg_string_handler, &tx_name);
1757         if (rc != 0)
1758                 goto fail_kvarg_tx_datapath;
1759
1760         if (tx_name != NULL) {
1761                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1762                 if (sa->dp_tx == NULL) {
1763                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1764                         rc = ENOENT;
1765                         goto fail_dp_tx;
1766                 }
1767                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1768                         sfc_err(sa,
1769                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1770                                 tx_name);
1771                         rc = EINVAL;
1772                         goto fail_dp_tx_caps;
1773                 }
1774         } else {
1775                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1776                 if (sa->dp_tx == NULL) {
1777                         sfc_err(sa, "Tx datapath by caps %#x not found",
1778                                 avail_caps);
1779                         rc = ENOENT;
1780                         goto fail_dp_tx;
1781                 }
1782         }
1783
1784         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1785         if (sa->dp_tx_name == NULL) {
1786                 rc = ENOMEM;
1787                 goto fail_dp_tx_name;
1788         }
1789
1790         sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1791
1792         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1793
1794         dev->dev_ops = &sfc_eth_dev_ops;
1795
1796         return 0;
1797
1798 fail_dp_tx_name:
1799 fail_dp_tx_caps:
1800         sa->dp_tx = NULL;
1801
1802 fail_dp_tx:
1803 fail_kvarg_tx_datapath:
1804         rte_free(sa->dp_rx_name);
1805         sa->dp_rx_name = NULL;
1806
1807 fail_dp_rx_name:
1808 fail_dp_rx_caps:
1809         sa->dp_rx = NULL;
1810
1811 fail_dp_rx:
1812 fail_kvarg_rx_datapath:
1813         return rc;
1814 }
1815
1816 static void
1817 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1818 {
1819         struct sfc_adapter *sa = dev->data->dev_private;
1820
1821         dev->dev_ops = NULL;
1822         dev->rx_pkt_burst = NULL;
1823         dev->tx_pkt_burst = NULL;
1824
1825         rte_free(sa->dp_tx_name);
1826         sa->dp_tx_name = NULL;
1827         sa->dp_tx = NULL;
1828
1829         rte_free(sa->dp_rx_name);
1830         sa->dp_rx_name = NULL;
1831         sa->dp_rx = NULL;
1832 }
1833
1834 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1835         .rxq_info_get                   = sfc_rx_queue_info_get,
1836         .txq_info_get                   = sfc_tx_queue_info_get,
1837 };
1838
1839 static int
1840 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1841 {
1842         /*
1843          * Device private data has really many process-local pointers.
1844          * Below code should be extremely careful to use data located
1845          * in shared memory only.
1846          */
1847         struct sfc_adapter *sa = dev->data->dev_private;
1848         const struct sfc_dp_rx *dp_rx;
1849         const struct sfc_dp_tx *dp_tx;
1850         int rc;
1851
1852         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1853         if (dp_rx == NULL) {
1854                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1855                 rc = ENOENT;
1856                 goto fail_dp_rx;
1857         }
1858         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1859                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1860                         sa->dp_tx_name);
1861                 rc = EINVAL;
1862                 goto fail_dp_rx_multi_process;
1863         }
1864
1865         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1866         if (dp_tx == NULL) {
1867                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1868                 rc = ENOENT;
1869                 goto fail_dp_tx;
1870         }
1871         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1872                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1873                         sa->dp_tx_name);
1874                 rc = EINVAL;
1875                 goto fail_dp_tx_multi_process;
1876         }
1877
1878         dev->rx_pkt_burst = dp_rx->pkt_burst;
1879         dev->tx_pkt_burst = dp_tx->pkt_burst;
1880         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1881
1882         return 0;
1883
1884 fail_dp_tx_multi_process:
1885 fail_dp_tx:
1886 fail_dp_rx_multi_process:
1887 fail_dp_rx:
1888         return rc;
1889 }
1890
1891 static void
1892 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1893 {
1894         dev->dev_ops = NULL;
1895         dev->tx_pkt_burst = NULL;
1896         dev->rx_pkt_burst = NULL;
1897 }
1898
1899 static void
1900 sfc_register_dp(void)
1901 {
1902         /* Register once */
1903         if (TAILQ_EMPTY(&sfc_dp_head)) {
1904                 /* Prefer EF10 datapath */
1905                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1906                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1907
1908                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1909                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1910                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1911         }
1912 }
1913
1914 static int
1915 sfc_eth_dev_init(struct rte_eth_dev *dev)
1916 {
1917         struct sfc_adapter *sa = dev->data->dev_private;
1918         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1919         int rc;
1920         const efx_nic_cfg_t *encp;
1921         const struct ether_addr *from;
1922
1923         sfc_register_dp();
1924
1925         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1926                 return -sfc_eth_dev_secondary_set_ops(dev);
1927
1928         /* Required for logging */
1929         sa->pci_addr = pci_dev->addr;
1930         sa->port_id = dev->data->port_id;
1931
1932         sa->eth_dev = dev;
1933
1934         /* Copy PCI device info to the dev->data */
1935         rte_eth_copy_pci_info(dev, pci_dev);
1936
1937         rc = sfc_kvargs_parse(sa);
1938         if (rc != 0)
1939                 goto fail_kvargs_parse;
1940
1941         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1942                                 sfc_kvarg_bool_handler, &sa->debug_init);
1943         if (rc != 0)
1944                 goto fail_kvarg_debug_init;
1945
1946         sfc_log_init(sa, "entry");
1947
1948         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1949         if (dev->data->mac_addrs == NULL) {
1950                 rc = ENOMEM;
1951                 goto fail_mac_addrs;
1952         }
1953
1954         sfc_adapter_lock_init(sa);
1955         sfc_adapter_lock(sa);
1956
1957         sfc_log_init(sa, "probing");
1958         rc = sfc_probe(sa);
1959         if (rc != 0)
1960                 goto fail_probe;
1961
1962         sfc_log_init(sa, "set device ops");
1963         rc = sfc_eth_dev_set_ops(dev);
1964         if (rc != 0)
1965                 goto fail_set_ops;
1966
1967         sfc_log_init(sa, "attaching");
1968         rc = sfc_attach(sa);
1969         if (rc != 0)
1970                 goto fail_attach;
1971
1972         encp = efx_nic_cfg_get(sa->nic);
1973
1974         /*
1975          * The arguments are really reverse order in comparison to
1976          * Linux kernel. Copy from NIC config to Ethernet device data.
1977          */
1978         from = (const struct ether_addr *)(encp->enc_mac_addr);
1979         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1980
1981         sfc_adapter_unlock(sa);
1982
1983         sfc_log_init(sa, "done");
1984         return 0;
1985
1986 fail_attach:
1987         sfc_eth_dev_clear_ops(dev);
1988
1989 fail_set_ops:
1990         sfc_unprobe(sa);
1991
1992 fail_probe:
1993         sfc_adapter_unlock(sa);
1994         sfc_adapter_lock_fini(sa);
1995         rte_free(dev->data->mac_addrs);
1996         dev->data->mac_addrs = NULL;
1997
1998 fail_mac_addrs:
1999 fail_kvarg_debug_init:
2000         sfc_kvargs_cleanup(sa);
2001
2002 fail_kvargs_parse:
2003         sfc_log_init(sa, "failed %d", rc);
2004         SFC_ASSERT(rc > 0);
2005         return -rc;
2006 }
2007
2008 static int
2009 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2010 {
2011         struct sfc_adapter *sa;
2012
2013         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2014                 sfc_eth_dev_secondary_clear_ops(dev);
2015                 return 0;
2016         }
2017
2018         sa = dev->data->dev_private;
2019         sfc_log_init(sa, "entry");
2020
2021         sfc_adapter_lock(sa);
2022
2023         sfc_eth_dev_clear_ops(dev);
2024
2025         sfc_detach(sa);
2026         sfc_unprobe(sa);
2027
2028         rte_free(dev->data->mac_addrs);
2029         dev->data->mac_addrs = NULL;
2030
2031         sfc_kvargs_cleanup(sa);
2032
2033         sfc_adapter_unlock(sa);
2034         sfc_adapter_lock_fini(sa);
2035
2036         sfc_log_init(sa, "done");
2037
2038         /* Required for logging, so cleanup last */
2039         sa->eth_dev = NULL;
2040         return 0;
2041 }
2042
2043 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2044         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2045         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2046         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2047         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2048         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2049         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2050         { .vendor_id = 0 /* sentinel */ }
2051 };
2052
2053 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2054         struct rte_pci_device *pci_dev)
2055 {
2056         return rte_eth_dev_pci_generic_probe(pci_dev,
2057                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2058 }
2059
2060 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2061 {
2062         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2063 }
2064
2065 static struct rte_pci_driver sfc_efx_pmd = {
2066         .id_table = pci_id_sfc_efx_map,
2067         .drv_flags =
2068                 RTE_PCI_DRV_INTR_LSC |
2069                 RTE_PCI_DRV_NEED_MAPPING,
2070         .probe = sfc_eth_dev_pci_probe,
2071         .remove = sfc_eth_dev_pci_remove,
2072 };
2073
2074 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2075 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2076 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2077 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2078         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2079         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2080         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2081         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
2082         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
2083         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);