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         /* Initialize to hardware limits */
 174         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 175         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 176         /* The RXQ hardware requires that the descriptor count is a power
 177          * of 2, but rx_desc_lim cannot properly describe that constraint.
 178          */
 179         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 180
 181         /* Initialize to hardware limits */
 182         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 183         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 184         /*
 185          * The TXQ hardware requires that the descriptor count is a power
 186          * of 2, but tx_desc_lim cannot properly describe that constraint
 187          */
 188         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 189
 190         if (sa->dp_rx->get_dev_info != NULL)
 191                 sa->dp_rx->get_dev_info(dev_info);
 192         if (sa->dp_tx->get_dev_info != NULL)
 193                 sa->dp_tx->get_dev_info(dev_info);
 194 }
 195
 196 static const uint32_t *
 197 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 198 {
 199         struct sfc_adapter *sa = dev->data->dev_private;
 200         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 201         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 202
 203         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 204 }
 205
 206 static int
 207 sfc_dev_configure(struct rte_eth_dev *dev)
 208 {
 209         struct rte_eth_dev_data *dev_data = dev->data;
 210         struct sfc_adapter *sa = dev_data->dev_private;
 211         int rc;
 212
 213         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 214                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 215
 216         sfc_adapter_lock(sa);
 217         switch (sa->state) {
 218         case SFC_ADAPTER_CONFIGURED:
 219                 /* FALLTHROUGH */
 220         case SFC_ADAPTER_INITIALIZED:
 221                 rc = sfc_configure(sa);
 222                 break;
 223         default:
 224                 sfc_err(sa, "unexpected adapter state %u to configure",
 225                         sa->state);
 226                 rc = EINVAL;
 227                 break;
 228         }
 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_start(struct rte_eth_dev *dev)
 238 {
 239         struct sfc_adapter *sa = dev->data->dev_private;
 240         int rc;
 241
 242         sfc_log_init(sa, "entry");
 243
 244         sfc_adapter_lock(sa);
 245         rc = sfc_start(sa);
 246         sfc_adapter_unlock(sa);
 247
 248         sfc_log_init(sa, "done %d", rc);
 249         SFC_ASSERT(rc >= 0);
 250         return -rc;
 251 }
 252
 253 static int
 254 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 255 {
 256         struct sfc_adapter *sa = dev->data->dev_private;
 257         struct rte_eth_link *dev_link = &dev->data->dev_link;
 258         struct rte_eth_link old_link;
 259         struct rte_eth_link current_link;
 260
 261         sfc_log_init(sa, "entry");
 262
 263 retry:
 264         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 265         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 266
 267         if (sa->state != SFC_ADAPTER_STARTED) {
 268                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 269                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 270                                          *(uint64_t *)&old_link,
 271                                          *(uint64_t *)&current_link))
 272                         goto retry;
 273         } else if (wait_to_complete) {
 274                 efx_link_mode_t link_mode;
 275
 276                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 277                         link_mode = EFX_LINK_UNKNOWN;
 278                 sfc_port_link_mode_to_info(link_mode, &current_link);
 279
 280                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 281                                          *(uint64_t *)&old_link,
 282                                          *(uint64_t *)&current_link))
 283                         goto retry;
 284         } else {
 285                 sfc_ev_mgmt_qpoll(sa);
 286                 *(int64_t *)&current_link =
 287                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 288         }
 289
 290         if (old_link.link_status != current_link.link_status)
 291                 sfc_info(sa, "Link status is %s",
 292                          current_link.link_status ? "UP" : "DOWN");
 293
 294         return old_link.link_status == current_link.link_status ? 0 : -1;
 295 }
 296
 297 static void
 298 sfc_dev_stop(struct rte_eth_dev *dev)
 299 {
 300         struct sfc_adapter *sa = dev->data->dev_private;
 301
 302         sfc_log_init(sa, "entry");
 303
 304         sfc_adapter_lock(sa);
 305         sfc_stop(sa);
 306         sfc_adapter_unlock(sa);
 307
 308         sfc_log_init(sa, "done");
 309 }
 310
 311 static int
 312 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 313 {
 314         struct sfc_adapter *sa = dev->data->dev_private;
 315         int rc;
 316
 317         sfc_log_init(sa, "entry");
 318
 319         sfc_adapter_lock(sa);
 320         rc = sfc_start(sa);
 321         sfc_adapter_unlock(sa);
 322
 323         SFC_ASSERT(rc >= 0);
 324         return -rc;
 325 }
 326
 327 static int
 328 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 329 {
 330         struct sfc_adapter *sa = dev->data->dev_private;
 331
 332         sfc_log_init(sa, "entry");
 333
 334         sfc_adapter_lock(sa);
 335         sfc_stop(sa);
 336         sfc_adapter_unlock(sa);
 337
 338         return 0;
 339 }
 340
 341 static void
 342 sfc_dev_close(struct rte_eth_dev *dev)
 343 {
 344         struct sfc_adapter *sa = dev->data->dev_private;
 345
 346         sfc_log_init(sa, "entry");
 347
 348         sfc_adapter_lock(sa);
 349         switch (sa->state) {
 350         case SFC_ADAPTER_STARTED:
 351                 sfc_stop(sa);
 352                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 353                 /* FALLTHROUGH */
 354         case SFC_ADAPTER_CONFIGURED:
 355                 sfc_close(sa);
 356                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 357                 /* FALLTHROUGH */
 358         case SFC_ADAPTER_INITIALIZED:
 359                 break;
 360         default:
 361                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 362                 break;
 363         }
 364         sfc_adapter_unlock(sa);
 365
 366         sfc_log_init(sa, "done");
 367 }
 368
 369 static void
 370 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 371                    boolean_t enabled)
 372 {
 373         struct sfc_port *port;
 374         boolean_t *toggle;
 375         struct sfc_adapter *sa = dev->data->dev_private;
 376         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 377         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 378
 379         sfc_adapter_lock(sa);
 380
 381         port = &sa->port;
 382         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 383
 384         if (*toggle != enabled) {
 385                 *toggle = enabled;
 386
 387                 if (port->isolated) {
 388                         sfc_warn(sa, "isolated mode is active on the port");
 389                         sfc_warn(sa, "the change is to be applied on the next "
 390                                      "start provided that isolated mode is "
 391                                      "disabled prior the next start");
 392                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 393                            (sfc_set_rx_mode(sa) != 0)) {
 394                         *toggle = !(enabled);
 395                         sfc_warn(sa, "Failed to %s %s mode",
 396                                  ((enabled) ? "enable" : "disable"), desc);
 397                 }
 398         }
 399
 400         sfc_adapter_unlock(sa);
 401 }
 402
 403 static void
 404 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 405 {
 406         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 407 }
 408
 409 static void
 410 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 411 {
 412         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 413 }
 414
 415 static void
 416 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 417 {
 418         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 419 }
 420
 421 static void
 422 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 423 {
 424         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 425 }
 426
 427 static int
 428 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 429                    uint16_t nb_rx_desc, unsigned int socket_id,
 430                    const struct rte_eth_rxconf *rx_conf,
 431                    struct rte_mempool *mb_pool)
 432 {
 433         struct sfc_adapter *sa = dev->data->dev_private;
 434         int rc;
 435
 436         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 437                      rx_queue_id, nb_rx_desc, socket_id);
 438
 439         sfc_adapter_lock(sa);
 440
 441         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 442                           rx_conf, mb_pool);
 443         if (rc != 0)
 444                 goto fail_rx_qinit;
 445
 446         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 447
 448         sfc_adapter_unlock(sa);
 449
 450         return 0;
 451
 452 fail_rx_qinit:
 453         sfc_adapter_unlock(sa);
 454         SFC_ASSERT(rc > 0);
 455         return -rc;
 456 }
 457
 458 static void
 459 sfc_rx_queue_release(void *queue)
 460 {
 461         struct sfc_dp_rxq *dp_rxq = queue;
 462         struct sfc_rxq *rxq;
 463         struct sfc_adapter *sa;
 464         unsigned int sw_index;
 465
 466         if (dp_rxq == NULL)
 467                 return;
 468
 469         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 470         sa = rxq->evq->sa;
 471         sfc_adapter_lock(sa);
 472
 473         sw_index = sfc_rxq_sw_index(rxq);
 474
 475         sfc_log_init(sa, "RxQ=%u", sw_index);
 476
 477         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 478
 479         sfc_rx_qfini(sa, sw_index);
 480
 481         sfc_adapter_unlock(sa);
 482 }
 483
 484 static int
 485 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 486                    uint16_t nb_tx_desc, unsigned int socket_id,
 487                    const struct rte_eth_txconf *tx_conf)
 488 {
 489         struct sfc_adapter *sa = dev->data->dev_private;
 490         int rc;
 491
 492         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 493                      tx_queue_id, nb_tx_desc, socket_id);
 494
 495         sfc_adapter_lock(sa);
 496
 497         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 498         if (rc != 0)
 499                 goto fail_tx_qinit;
 500
 501         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 502
 503         sfc_adapter_unlock(sa);
 504         return 0;
 505
 506 fail_tx_qinit:
 507         sfc_adapter_unlock(sa);
 508         SFC_ASSERT(rc > 0);
 509         return -rc;
 510 }
 511
 512 static void
 513 sfc_tx_queue_release(void *queue)
 514 {
 515         struct sfc_dp_txq *dp_txq = queue;
 516         struct sfc_txq *txq;
 517         unsigned int sw_index;
 518         struct sfc_adapter *sa;
 519
 520         if (dp_txq == NULL)
 521                 return;
 522
 523         txq = sfc_txq_by_dp_txq(dp_txq);
 524         sw_index = sfc_txq_sw_index(txq);
 525
 526         SFC_ASSERT(txq->evq != NULL);
 527         sa = txq->evq->sa;
 528
 529         sfc_log_init(sa, "TxQ = %u", sw_index);
 530
 531         sfc_adapter_lock(sa);
 532
 533         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 534         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 535
 536         sfc_tx_qfini(sa, sw_index);
 537
 538         sfc_adapter_unlock(sa);
 539 }
 540
 541 static int
 542 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 543 {
 544         struct sfc_adapter *sa = dev->data->dev_private;
 545         struct sfc_port *port = &sa->port;
 546         uint64_t *mac_stats;
 547         int ret;
 548
 549         rte_spinlock_lock(&port->mac_stats_lock);
 550
 551         ret = sfc_port_update_mac_stats(sa);
 552         if (ret != 0)
 553                 goto unlock;
 554
 555         mac_stats = port->mac_stats_buf;
 556
 557         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 558                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 559                 stats->ipackets =
 560                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 561                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 562                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 563                 stats->opackets =
 564                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 565                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 566                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 567                 stats->ibytes =
 568                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 569                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 570                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 571                 stats->obytes =
 572                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 573                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 574                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 575                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 576                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 577                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 578         } else {
 579                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 580                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 581                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 582                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 583                 /*
 584                  * Take into account stats which are whenever supported
 585                  * on EF10. If some stat is not supported by current
 586                  * firmware variant or HW revision, it is guaranteed
 587                  * to be zero in mac_stats.
 588                  */
 589                 stats->imissed =
 590                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 591                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 592                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 593                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 594                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 595                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 596                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 597                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 598                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 599                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 600                 stats->ierrors =
 601                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 602                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 603                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 604                 /* no oerrors counters supported on EF10 */
 605         }
 606
 607 unlock:
 608         rte_spinlock_unlock(&port->mac_stats_lock);
 609         SFC_ASSERT(ret >= 0);
 610         return -ret;
 611 }
 612
 613 static void
 614 sfc_stats_reset(struct rte_eth_dev *dev)
 615 {
 616         struct sfc_adapter *sa = dev->data->dev_private;
 617         struct sfc_port *port = &sa->port;
 618         int rc;
 619
 620         if (sa->state != SFC_ADAPTER_STARTED) {
 621                 /*
 622                  * The operation cannot be done if port is not started; it
 623                  * will be scheduled to be done during the next port start
 624                  */
 625                 port->mac_stats_reset_pending = B_TRUE;
 626                 return;
 627         }
 628
 629         rc = sfc_port_reset_mac_stats(sa);
 630         if (rc != 0)
 631                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 632 }
 633
 634 static int
 635 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 636                unsigned int xstats_count)
 637 {
 638         struct sfc_adapter *sa = dev->data->dev_private;
 639         struct sfc_port *port = &sa->port;
 640         uint64_t *mac_stats;
 641         int rc;
 642         unsigned int i;
 643         int nstats = 0;
 644
 645         rte_spinlock_lock(&port->mac_stats_lock);
 646
 647         rc = sfc_port_update_mac_stats(sa);
 648         if (rc != 0) {
 649                 SFC_ASSERT(rc > 0);
 650                 nstats = -rc;
 651                 goto unlock;
 652         }
 653
 654         mac_stats = port->mac_stats_buf;
 655
 656         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 657                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 658                         if (xstats != NULL && nstats < (int)xstats_count) {
 659                                 xstats[nstats].id = nstats;
 660                                 xstats[nstats].value = mac_stats[i];
 661                         }
 662                         nstats++;
 663                 }
 664         }
 665
 666 unlock:
 667         rte_spinlock_unlock(&port->mac_stats_lock);
 668
 669         return nstats;
 670 }
 671
 672 static int
 673 sfc_xstats_get_names(struct rte_eth_dev *dev,
 674                      struct rte_eth_xstat_name *xstats_names,
 675                      unsigned int xstats_count)
 676 {
 677         struct sfc_adapter *sa = dev->data->dev_private;
 678         struct sfc_port *port = &sa->port;
 679         unsigned int i;
 680         unsigned int nstats = 0;
 681
 682         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 683                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 684                         if (xstats_names != NULL && nstats < xstats_count)
 685                                 strncpy(xstats_names[nstats].name,
 686                                         efx_mac_stat_name(sa->nic, i),
 687                                         sizeof(xstats_names[0].name));
 688                         nstats++;
 689                 }
 690         }
 691
 692         return nstats;
 693 }
 694
 695 static int
 696 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 697                      uint64_t *values, unsigned int n)
 698 {
 699         struct sfc_adapter *sa = dev->data->dev_private;
 700         struct sfc_port *port = &sa->port;
 701         uint64_t *mac_stats;
 702         unsigned int nb_supported = 0;
 703         unsigned int nb_written = 0;
 704         unsigned int i;
 705         int ret;
 706         int rc;
 707
 708         if (unlikely(values == NULL) ||
 709             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 710                 return port->mac_stats_nb_supported;
 711
 712         rte_spinlock_lock(&port->mac_stats_lock);
 713
 714         rc = sfc_port_update_mac_stats(sa);
 715         if (rc != 0) {
 716                 SFC_ASSERT(rc > 0);
 717                 ret = -rc;
 718                 goto unlock;
 719         }
 720
 721         mac_stats = port->mac_stats_buf;
 722
 723         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 724                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 725                         continue;
 726
 727                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 728                         values[nb_written++] = mac_stats[i];
 729
 730                 ++nb_supported;
 731         }
 732
 733         ret = nb_written;
 734
 735 unlock:
 736         rte_spinlock_unlock(&port->mac_stats_lock);
 737
 738         return ret;
 739 }
 740
 741 static int
 742 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 743                            struct rte_eth_xstat_name *xstats_names,
 744                            const uint64_t *ids, unsigned int size)
 745 {
 746         struct sfc_adapter *sa = dev->data->dev_private;
 747         struct sfc_port *port = &sa->port;
 748         unsigned int nb_supported = 0;
 749         unsigned int nb_written = 0;
 750         unsigned int i;
 751
 752         if (unlikely(xstats_names == NULL) ||
 753             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 754                 return port->mac_stats_nb_supported;
 755
 756         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 757                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 758                         continue;
 759
 760                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 761                         char *name = xstats_names[nb_written++].name;
 762
 763                         strncpy(name, efx_mac_stat_name(sa->nic, i),
 764                                 sizeof(xstats_names[0].name));
 765                         name[sizeof(xstats_names[0].name) - 1] = '\0';
 766                 }
 767
 768                 ++nb_supported;
 769         }
 770
 771         return nb_written;
 772 }
 773
 774 static int
 775 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 776 {
 777         struct sfc_adapter *sa = dev->data->dev_private;
 778         unsigned int wanted_fc, link_fc;
 779
 780         memset(fc_conf, 0, sizeof(*fc_conf));
 781
 782         sfc_adapter_lock(sa);
 783
 784         if (sa->state == SFC_ADAPTER_STARTED)
 785                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 786         else
 787                 link_fc = sa->port.flow_ctrl;
 788
 789         switch (link_fc) {
 790         case 0:
 791                 fc_conf->mode = RTE_FC_NONE;
 792                 break;
 793         case EFX_FCNTL_RESPOND:
 794                 fc_conf->mode = RTE_FC_RX_PAUSE;
 795                 break;
 796         case EFX_FCNTL_GENERATE:
 797                 fc_conf->mode = RTE_FC_TX_PAUSE;
 798                 break;
 799         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 800                 fc_conf->mode = RTE_FC_FULL;
 801                 break;
 802         default:
 803                 sfc_err(sa, "%s: unexpected flow control value %#x",
 804                         __func__, link_fc);
 805         }
 806
 807         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 808
 809         sfc_adapter_unlock(sa);
 810
 811         return 0;
 812 }
 813
 814 static int
 815 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 816 {
 817         struct sfc_adapter *sa = dev->data->dev_private;
 818         struct sfc_port *port = &sa->port;
 819         unsigned int fcntl;
 820         int rc;
 821
 822         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 823             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 824             fc_conf->mac_ctrl_frame_fwd != 0) {
 825                 sfc_err(sa, "unsupported flow control settings specified");
 826                 rc = EINVAL;
 827                 goto fail_inval;
 828         }
 829
 830         switch (fc_conf->mode) {
 831         case RTE_FC_NONE:
 832                 fcntl = 0;
 833                 break;
 834         case RTE_FC_RX_PAUSE:
 835                 fcntl = EFX_FCNTL_RESPOND;
 836                 break;
 837         case RTE_FC_TX_PAUSE:
 838                 fcntl = EFX_FCNTL_GENERATE;
 839                 break;
 840         case RTE_FC_FULL:
 841                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 842                 break;
 843         default:
 844                 rc = EINVAL;
 845                 goto fail_inval;
 846         }
 847
 848         sfc_adapter_lock(sa);
 849
 850         if (sa->state == SFC_ADAPTER_STARTED) {
 851                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 852                 if (rc != 0)
 853                         goto fail_mac_fcntl_set;
 854         }
 855
 856         port->flow_ctrl = fcntl;
 857         port->flow_ctrl_autoneg = fc_conf->autoneg;
 858
 859         sfc_adapter_unlock(sa);
 860
 861         return 0;
 862
 863 fail_mac_fcntl_set:
 864         sfc_adapter_unlock(sa);
 865 fail_inval:
 866         SFC_ASSERT(rc > 0);
 867         return -rc;
 868 }
 869
 870 static int
 871 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 872 {
 873         struct sfc_adapter *sa = dev->data->dev_private;
 874         size_t pdu = EFX_MAC_PDU(mtu);
 875         size_t old_pdu;
 876         int rc;
 877
 878         sfc_log_init(sa, "mtu=%u", mtu);
 879
 880         rc = EINVAL;
 881         if (pdu < EFX_MAC_PDU_MIN) {
 882                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 883                         (unsigned int)mtu, (unsigned int)pdu,
 884                         EFX_MAC_PDU_MIN);
 885                 goto fail_inval;
 886         }
 887         if (pdu > EFX_MAC_PDU_MAX) {
 888                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 889                         (unsigned int)mtu, (unsigned int)pdu,
 890                         EFX_MAC_PDU_MAX);
 891                 goto fail_inval;
 892         }
 893
 894         sfc_adapter_lock(sa);
 895
 896         if (pdu != sa->port.pdu) {
 897                 if (sa->state == SFC_ADAPTER_STARTED) {
 898                         sfc_stop(sa);
 899
 900                         old_pdu = sa->port.pdu;
 901                         sa->port.pdu = pdu;
 902                         rc = sfc_start(sa);
 903                         if (rc != 0)
 904                                 goto fail_start;
 905                 } else {
 906                         sa->port.pdu = pdu;
 907                 }
 908         }
 909
 910         /*
 911          * The driver does not use it, but other PMDs update jumbo_frame
 912          * flag and max_rx_pkt_len when MTU is set.
 913          */
 914         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 915         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 916
 917         sfc_adapter_unlock(sa);
 918
 919         sfc_log_init(sa, "done");
 920         return 0;
 921
 922 fail_start:
 923         sa->port.pdu = old_pdu;
 924         if (sfc_start(sa) != 0)
 925                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 926                         "PDU max size - port is stopped",
 927                         (unsigned int)pdu, (unsigned int)old_pdu);
 928         sfc_adapter_unlock(sa);
 929
 930 fail_inval:
 931         sfc_log_init(sa, "failed %d", rc);
 932         SFC_ASSERT(rc > 0);
 933         return -rc;
 934 }
 935 static void
 936 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 937 {
 938         struct sfc_adapter *sa = dev->data->dev_private;
 939         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 940         struct sfc_port *port = &sa->port;
 941         int rc;
 942
 943         sfc_adapter_lock(sa);
 944
 945         /*
 946          * Copy the address to the device private data so that
 947          * it could be recalled in the case of adapter restart.
 948          */
 949         ether_addr_copy(mac_addr, &port->default_mac_addr);
 950
 951         if (port->isolated) {
 952                 sfc_err(sa, "isolated mode is active on the port");
 953                 sfc_err(sa, "will not set MAC address");
 954                 goto unlock;
 955         }
 956
 957         if (sa->state != SFC_ADAPTER_STARTED) {
 958                 sfc_info(sa, "the port is not started");
 959                 sfc_info(sa, "the new MAC address will be set on port start");
 960
 961                 goto unlock;
 962         }
 963
 964         if (encp->enc_allow_set_mac_with_installed_filters) {
 965                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 966                 if (rc != 0) {
 967                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 968                         goto unlock;
 969                 }
 970
 971                 /*
 972                  * Changing the MAC address by means of MCDI request
 973                  * has no effect on received traffic, therefore
 974                  * we also need to update unicast filters
 975                  */
 976                 rc = sfc_set_rx_mode(sa);
 977                 if (rc != 0)
 978                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 979         } else {
 980                 sfc_warn(sa, "cannot set MAC address with filters installed");
 981                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 982                 sfc_warn(sa, "(some traffic may be dropped)");
 983
 984                 /*
 985                  * Since setting MAC address with filters installed is not
 986                  * allowed on the adapter, the new MAC address will be set
 987                  * by means of adapter restart. sfc_start() shall retrieve
 988                  * the new address from the device private data and set it.
 989                  */
 990                 sfc_stop(sa);
 991                 rc = sfc_start(sa);
 992                 if (rc != 0)
 993                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 994         }
 995
 996 unlock:
 997         /*
 998          * In the case of failure sa->port->default_mac_addr does not
 999          * need rollback since no error code is returned, and the upper
1000          * API will anyway update the external MAC address storage.
1001          * To be consistent with that new value it is better to keep
1002          * the device private value the same.
1003          */
1004         sfc_adapter_unlock(sa);
1005 }
1006
1007
1008 static int
1009 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
1010                      uint32_t nb_mc_addr)
1011 {
1012         struct sfc_adapter *sa = dev->data->dev_private;
1013         struct sfc_port *port = &sa->port;
1014         uint8_t *mc_addrs = port->mcast_addrs;
1015         int rc;
1016         unsigned int i;
1017
1018         if (port->isolated) {
1019                 sfc_err(sa, "isolated mode is active on the port");
1020                 sfc_err(sa, "will not set multicast address list");
1021                 return -ENOTSUP;
1022         }
1023
1024         if (mc_addrs == NULL)
1025                 return -ENOBUFS;
1026
1027         if (nb_mc_addr > port->max_mcast_addrs) {
1028                 sfc_err(sa, "too many multicast addresses: %u > %u",
1029                          nb_mc_addr, port->max_mcast_addrs);
1030                 return -EINVAL;
1031         }
1032
1033         for (i = 0; i < nb_mc_addr; ++i) {
1034                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1035                                  EFX_MAC_ADDR_LEN);
1036                 mc_addrs += EFX_MAC_ADDR_LEN;
1037         }
1038
1039         port->nb_mcast_addrs = nb_mc_addr;
1040
1041         if (sa->state != SFC_ADAPTER_STARTED)
1042                 return 0;
1043
1044         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1045                                         port->nb_mcast_addrs);
1046         if (rc != 0)
1047                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1048
1049         SFC_ASSERT(rc > 0);
1050         return -rc;
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_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1059                       struct rte_eth_rxq_info *qinfo)
1060 {
1061         struct sfc_adapter *sa = dev->data->dev_private;
1062         struct sfc_rxq_info *rxq_info;
1063         struct sfc_rxq *rxq;
1064
1065         sfc_adapter_lock(sa);
1066
1067         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1068
1069         rxq_info = &sa->rxq_info[rx_queue_id];
1070         rxq = rxq_info->rxq;
1071         SFC_ASSERT(rxq != NULL);
1072
1073         qinfo->mp = rxq->refill_mb_pool;
1074         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1075         qinfo->conf.rx_drop_en = 1;
1076         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1077         qinfo->scattered_rx =
1078                 ((rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) != 0);
1079         qinfo->nb_desc = rxq_info->entries;
1080
1081         sfc_adapter_unlock(sa);
1082 }
1083
1084 /*
1085  * The function is used by the secondary process as well. It must not
1086  * use any process-local pointers from the adapter data.
1087  */
1088 static void
1089 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1090                       struct rte_eth_txq_info *qinfo)
1091 {
1092         struct sfc_adapter *sa = dev->data->dev_private;
1093         struct sfc_txq_info *txq_info;
1094
1095         sfc_adapter_lock(sa);
1096
1097         SFC_ASSERT(tx_queue_id < sa->txq_count);
1098
1099         txq_info = &sa->txq_info[tx_queue_id];
1100         SFC_ASSERT(txq_info->txq != NULL);
1101
1102         memset(qinfo, 0, sizeof(*qinfo));
1103
1104         qinfo->conf.txq_flags = txq_info->txq->flags;
1105         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1106         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1107         qinfo->nb_desc = txq_info->entries;
1108
1109         sfc_adapter_unlock(sa);
1110 }
1111
1112 static uint32_t
1113 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1114 {
1115         struct sfc_adapter *sa = dev->data->dev_private;
1116
1117         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1118
1119         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1120 }
1121
1122 static int
1123 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1124 {
1125         struct sfc_dp_rxq *dp_rxq = queue;
1126
1127         return sfc_rx_qdesc_done(dp_rxq, offset);
1128 }
1129
1130 static int
1131 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1132 {
1133         struct sfc_dp_rxq *dp_rxq = queue;
1134         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1135
1136         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1137 }
1138
1139 static int
1140 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1141 {
1142         struct sfc_dp_txq *dp_txq = queue;
1143         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1144
1145         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1146 }
1147
1148 static int
1149 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1150 {
1151         struct sfc_adapter *sa = dev->data->dev_private;
1152         int rc;
1153
1154         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1155
1156         sfc_adapter_lock(sa);
1157
1158         rc = EINVAL;
1159         if (sa->state != SFC_ADAPTER_STARTED)
1160                 goto fail_not_started;
1161
1162         rc = sfc_rx_qstart(sa, rx_queue_id);
1163         if (rc != 0)
1164                 goto fail_rx_qstart;
1165
1166         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1167
1168         sfc_adapter_unlock(sa);
1169
1170         return 0;
1171
1172 fail_rx_qstart:
1173 fail_not_started:
1174         sfc_adapter_unlock(sa);
1175         SFC_ASSERT(rc > 0);
1176         return -rc;
1177 }
1178
1179 static int
1180 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1181 {
1182         struct sfc_adapter *sa = dev->data->dev_private;
1183
1184         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1185
1186         sfc_adapter_lock(sa);
1187         sfc_rx_qstop(sa, rx_queue_id);
1188
1189         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1190
1191         sfc_adapter_unlock(sa);
1192
1193         return 0;
1194 }
1195
1196 static int
1197 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1198 {
1199         struct sfc_adapter *sa = dev->data->dev_private;
1200         int rc;
1201
1202         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1203
1204         sfc_adapter_lock(sa);
1205
1206         rc = EINVAL;
1207         if (sa->state != SFC_ADAPTER_STARTED)
1208                 goto fail_not_started;
1209
1210         rc = sfc_tx_qstart(sa, tx_queue_id);
1211         if (rc != 0)
1212                 goto fail_tx_qstart;
1213
1214         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1215
1216         sfc_adapter_unlock(sa);
1217         return 0;
1218
1219 fail_tx_qstart:
1220
1221 fail_not_started:
1222         sfc_adapter_unlock(sa);
1223         SFC_ASSERT(rc > 0);
1224         return -rc;
1225 }
1226
1227 static int
1228 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1229 {
1230         struct sfc_adapter *sa = dev->data->dev_private;
1231
1232         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1233
1234         sfc_adapter_lock(sa);
1235
1236         sfc_tx_qstop(sa, tx_queue_id);
1237
1238         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1239
1240         sfc_adapter_unlock(sa);
1241         return 0;
1242 }
1243
1244 static efx_tunnel_protocol_t
1245 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1246 {
1247         switch (rte_type) {
1248         case RTE_TUNNEL_TYPE_VXLAN:
1249                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1250         case RTE_TUNNEL_TYPE_GENEVE:
1251                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1252         default:
1253                 return EFX_TUNNEL_NPROTOS;
1254         }
1255 }
1256
1257 enum sfc_udp_tunnel_op_e {
1258         SFC_UDP_TUNNEL_ADD_PORT,
1259         SFC_UDP_TUNNEL_DEL_PORT,
1260 };
1261
1262 static int
1263 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1264                       struct rte_eth_udp_tunnel *tunnel_udp,
1265                       enum sfc_udp_tunnel_op_e op)
1266 {
1267         struct sfc_adapter *sa = dev->data->dev_private;
1268         efx_tunnel_protocol_t tunnel_proto;
1269         int rc;
1270
1271         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1272                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1273                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1274                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1275
1276         tunnel_proto =
1277                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1278         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1279                 rc = ENOTSUP;
1280                 goto fail_bad_proto;
1281         }
1282
1283         sfc_adapter_lock(sa);
1284
1285         switch (op) {
1286         case SFC_UDP_TUNNEL_ADD_PORT:
1287                 rc = efx_tunnel_config_udp_add(sa->nic,
1288                                                tunnel_udp->udp_port,
1289                                                tunnel_proto);
1290                 break;
1291         case SFC_UDP_TUNNEL_DEL_PORT:
1292                 rc = efx_tunnel_config_udp_remove(sa->nic,
1293                                                   tunnel_udp->udp_port,
1294                                                   tunnel_proto);
1295                 break;
1296         default:
1297                 rc = EINVAL;
1298                 goto fail_bad_op;
1299         }
1300
1301         if (rc != 0)
1302                 goto fail_op;
1303
1304         if (sa->state == SFC_ADAPTER_STARTED) {
1305                 rc = efx_tunnel_reconfigure(sa->nic);
1306                 if (rc == EAGAIN) {
1307                         /*
1308                          * Configuration is accepted by FW and MC reboot
1309                          * is initiated to apply the changes. MC reboot
1310                          * will be handled in a usual way (MC reboot
1311                          * event on management event queue and adapter
1312                          * restart).
1313                          */
1314                         rc = 0;
1315                 } else if (rc != 0) {
1316                         goto fail_reconfigure;
1317                 }
1318         }
1319
1320         sfc_adapter_unlock(sa);
1321         return 0;
1322
1323 fail_reconfigure:
1324         /* Remove/restore entry since the change makes the trouble */
1325         switch (op) {
1326         case SFC_UDP_TUNNEL_ADD_PORT:
1327                 (void)efx_tunnel_config_udp_remove(sa->nic,
1328                                                    tunnel_udp->udp_port,
1329                                                    tunnel_proto);
1330                 break;
1331         case SFC_UDP_TUNNEL_DEL_PORT:
1332                 (void)efx_tunnel_config_udp_add(sa->nic,
1333                                                 tunnel_udp->udp_port,
1334                                                 tunnel_proto);
1335                 break;
1336         }
1337
1338 fail_op:
1339 fail_bad_op:
1340         sfc_adapter_unlock(sa);
1341
1342 fail_bad_proto:
1343         SFC_ASSERT(rc > 0);
1344         return -rc;
1345 }
1346
1347 static int
1348 sfc_dev_udp_tunnel_port_add(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_ADD_PORT);
1352 }
1353
1354 static int
1355 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1356                             struct rte_eth_udp_tunnel *tunnel_udp)
1357 {
1358         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1359 }
1360
1361 #if EFSYS_OPT_RX_SCALE
1362 static int
1363 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1364                           struct rte_eth_rss_conf *rss_conf)
1365 {
1366         struct sfc_adapter *sa = dev->data->dev_private;
1367         struct sfc_port *port = &sa->port;
1368
1369         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1370                 return -ENOTSUP;
1371
1372         if (sa->rss_channels == 0)
1373                 return -EINVAL;
1374
1375         sfc_adapter_lock(sa);
1376
1377         /*
1378          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1379          * hence, conversion is done here to derive a correct set of ETH_RSS
1380          * flags which corresponds to the active EFX configuration stored
1381          * locally in 'sfc_adapter' and kept up-to-date
1382          */
1383         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1384         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1385         if (rss_conf->rss_key != NULL)
1386                 rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1387
1388         sfc_adapter_unlock(sa);
1389
1390         return 0;
1391 }
1392
1393 static int
1394 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1395                         struct rte_eth_rss_conf *rss_conf)
1396 {
1397         struct sfc_adapter *sa = dev->data->dev_private;
1398         struct sfc_port *port = &sa->port;
1399         unsigned int efx_hash_types;
1400         int rc = 0;
1401
1402         if (port->isolated)
1403                 return -ENOTSUP;
1404
1405         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1406                 sfc_err(sa, "RSS is not available");
1407                 return -ENOTSUP;
1408         }
1409
1410         if (sa->rss_channels == 0) {
1411                 sfc_err(sa, "RSS is not configured");
1412                 return -EINVAL;
1413         }
1414
1415         if ((rss_conf->rss_key != NULL) &&
1416             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1417                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1418                         sizeof(sa->rss_key));
1419                 return -EINVAL;
1420         }
1421
1422         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1423                 sfc_err(sa, "unsupported hash functions requested");
1424                 return -EINVAL;
1425         }
1426
1427         sfc_adapter_lock(sa);
1428
1429         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1430
1431         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1432                                    EFX_RX_HASHALG_TOEPLITZ,
1433                                    efx_hash_types, B_TRUE);
1434         if (rc != 0)
1435                 goto fail_scale_mode_set;
1436
1437         if (rss_conf->rss_key != NULL) {
1438                 if (sa->state == SFC_ADAPTER_STARTED) {
1439                         rc = efx_rx_scale_key_set(sa->nic,
1440                                                   EFX_RSS_CONTEXT_DEFAULT,
1441                                                   rss_conf->rss_key,
1442                                                   sizeof(sa->rss_key));
1443                         if (rc != 0)
1444                                 goto fail_scale_key_set;
1445                 }
1446
1447                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1448         }
1449
1450         sa->rss_hash_types = efx_hash_types;
1451
1452         sfc_adapter_unlock(sa);
1453
1454         return 0;
1455
1456 fail_scale_key_set:
1457         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1458                                   EFX_RX_HASHALG_TOEPLITZ,
1459                                   sa->rss_hash_types, B_TRUE) != 0)
1460                 sfc_err(sa, "failed to restore RSS mode");
1461
1462 fail_scale_mode_set:
1463         sfc_adapter_unlock(sa);
1464         return -rc;
1465 }
1466
1467 static int
1468 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1469                        struct rte_eth_rss_reta_entry64 *reta_conf,
1470                        uint16_t reta_size)
1471 {
1472         struct sfc_adapter *sa = dev->data->dev_private;
1473         struct sfc_port *port = &sa->port;
1474         int entry;
1475
1476         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1477                 return -ENOTSUP;
1478
1479         if (sa->rss_channels == 0)
1480                 return -EINVAL;
1481
1482         if (reta_size != EFX_RSS_TBL_SIZE)
1483                 return -EINVAL;
1484
1485         sfc_adapter_lock(sa);
1486
1487         for (entry = 0; entry < reta_size; entry++) {
1488                 int grp = entry / RTE_RETA_GROUP_SIZE;
1489                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1490
1491                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1492                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1493         }
1494
1495         sfc_adapter_unlock(sa);
1496
1497         return 0;
1498 }
1499
1500 static int
1501 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1502                         struct rte_eth_rss_reta_entry64 *reta_conf,
1503                         uint16_t reta_size)
1504 {
1505         struct sfc_adapter *sa = dev->data->dev_private;
1506         struct sfc_port *port = &sa->port;
1507         unsigned int *rss_tbl_new;
1508         uint16_t entry;
1509         int rc = 0;
1510
1511
1512         if (port->isolated)
1513                 return -ENOTSUP;
1514
1515         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1516                 sfc_err(sa, "RSS is not available");
1517                 return -ENOTSUP;
1518         }
1519
1520         if (sa->rss_channels == 0) {
1521                 sfc_err(sa, "RSS is not configured");
1522                 return -EINVAL;
1523         }
1524
1525         if (reta_size != EFX_RSS_TBL_SIZE) {
1526                 sfc_err(sa, "RETA size is wrong (should be %u)",
1527                         EFX_RSS_TBL_SIZE);
1528                 return -EINVAL;
1529         }
1530
1531         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1532         if (rss_tbl_new == NULL)
1533                 return -ENOMEM;
1534
1535         sfc_adapter_lock(sa);
1536
1537         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1538
1539         for (entry = 0; entry < reta_size; entry++) {
1540                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1541                 struct rte_eth_rss_reta_entry64 *grp;
1542
1543                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1544
1545                 if (grp->mask & (1ull << grp_idx)) {
1546                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1547                                 rc = EINVAL;
1548                                 goto bad_reta_entry;
1549                         }
1550                         rss_tbl_new[entry] = grp->reta[grp_idx];
1551                 }
1552         }
1553
1554         if (sa->state == SFC_ADAPTER_STARTED) {
1555                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1556                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1557                 if (rc != 0)
1558                         goto fail_scale_tbl_set;
1559         }
1560
1561         rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1562
1563 fail_scale_tbl_set:
1564 bad_reta_entry:
1565         sfc_adapter_unlock(sa);
1566
1567         rte_free(rss_tbl_new);
1568
1569         SFC_ASSERT(rc >= 0);
1570         return -rc;
1571 }
1572 #endif
1573
1574 static int
1575 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1576                     enum rte_filter_op filter_op,
1577                     void *arg)
1578 {
1579         struct sfc_adapter *sa = dev->data->dev_private;
1580         int rc = ENOTSUP;
1581
1582         sfc_log_init(sa, "entry");
1583
1584         switch (filter_type) {
1585         case RTE_ETH_FILTER_NONE:
1586                 sfc_err(sa, "Global filters configuration not supported");
1587                 break;
1588         case RTE_ETH_FILTER_MACVLAN:
1589                 sfc_err(sa, "MACVLAN filters not supported");
1590                 break;
1591         case RTE_ETH_FILTER_ETHERTYPE:
1592                 sfc_err(sa, "EtherType filters not supported");
1593                 break;
1594         case RTE_ETH_FILTER_FLEXIBLE:
1595                 sfc_err(sa, "Flexible filters not supported");
1596                 break;
1597         case RTE_ETH_FILTER_SYN:
1598                 sfc_err(sa, "SYN filters not supported");
1599                 break;
1600         case RTE_ETH_FILTER_NTUPLE:
1601                 sfc_err(sa, "NTUPLE filters not supported");
1602                 break;
1603         case RTE_ETH_FILTER_TUNNEL:
1604                 sfc_err(sa, "Tunnel filters not supported");
1605                 break;
1606         case RTE_ETH_FILTER_FDIR:
1607                 sfc_err(sa, "Flow Director filters not supported");
1608                 break;
1609         case RTE_ETH_FILTER_HASH:
1610                 sfc_err(sa, "Hash filters not supported");
1611                 break;
1612         case RTE_ETH_FILTER_GENERIC:
1613                 if (filter_op != RTE_ETH_FILTER_GET) {
1614                         rc = EINVAL;
1615                 } else {
1616                         *(const void **)arg = &sfc_flow_ops;
1617                         rc = 0;
1618                 }
1619                 break;
1620         default:
1621                 sfc_err(sa, "Unknown filter type %u", filter_type);
1622                 break;
1623         }
1624
1625         sfc_log_init(sa, "exit: %d", -rc);
1626         SFC_ASSERT(rc >= 0);
1627         return -rc;
1628 }
1629
1630 static const struct eth_dev_ops sfc_eth_dev_ops = {
1631         .dev_configure                  = sfc_dev_configure,
1632         .dev_start                      = sfc_dev_start,
1633         .dev_stop                       = sfc_dev_stop,
1634         .dev_set_link_up                = sfc_dev_set_link_up,
1635         .dev_set_link_down              = sfc_dev_set_link_down,
1636         .dev_close                      = sfc_dev_close,
1637         .promiscuous_enable             = sfc_dev_promisc_enable,
1638         .promiscuous_disable            = sfc_dev_promisc_disable,
1639         .allmulticast_enable            = sfc_dev_allmulti_enable,
1640         .allmulticast_disable           = sfc_dev_allmulti_disable,
1641         .link_update                    = sfc_dev_link_update,
1642         .stats_get                      = sfc_stats_get,
1643         .stats_reset                    = sfc_stats_reset,
1644         .xstats_get                     = sfc_xstats_get,
1645         .xstats_reset                   = sfc_stats_reset,
1646         .xstats_get_names               = sfc_xstats_get_names,
1647         .dev_infos_get                  = sfc_dev_infos_get,
1648         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1649         .mtu_set                        = sfc_dev_set_mtu,
1650         .rx_queue_start                 = sfc_rx_queue_start,
1651         .rx_queue_stop                  = sfc_rx_queue_stop,
1652         .tx_queue_start                 = sfc_tx_queue_start,
1653         .tx_queue_stop                  = sfc_tx_queue_stop,
1654         .rx_queue_setup                 = sfc_rx_queue_setup,
1655         .rx_queue_release               = sfc_rx_queue_release,
1656         .rx_queue_count                 = sfc_rx_queue_count,
1657         .rx_descriptor_done             = sfc_rx_descriptor_done,
1658         .rx_descriptor_status           = sfc_rx_descriptor_status,
1659         .tx_descriptor_status           = sfc_tx_descriptor_status,
1660         .tx_queue_setup                 = sfc_tx_queue_setup,
1661         .tx_queue_release               = sfc_tx_queue_release,
1662         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1663         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1664         .mac_addr_set                   = sfc_mac_addr_set,
1665         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1666         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1667 #if EFSYS_OPT_RX_SCALE
1668         .reta_update                    = sfc_dev_rss_reta_update,
1669         .reta_query                     = sfc_dev_rss_reta_query,
1670         .rss_hash_update                = sfc_dev_rss_hash_update,
1671         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1672 #endif
1673         .filter_ctrl                    = sfc_dev_filter_ctrl,
1674         .set_mc_addr_list               = sfc_set_mc_addr_list,
1675         .rxq_info_get                   = sfc_rx_queue_info_get,
1676         .txq_info_get                   = sfc_tx_queue_info_get,
1677         .fw_version_get                 = sfc_fw_version_get,
1678         .xstats_get_by_id               = sfc_xstats_get_by_id,
1679         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1680 };
1681
1682 /**
1683  * Duplicate a string in potentially shared memory required for
1684  * multi-process support.
1685  *
1686  * strdup() allocates from process-local heap/memory.
1687  */
1688 static char *
1689 sfc_strdup(const char *str)
1690 {
1691         size_t size;
1692         char *copy;
1693
1694         if (str == NULL)
1695                 return NULL;
1696
1697         size = strlen(str) + 1;
1698         copy = rte_malloc(__func__, size, 0);
1699         if (copy != NULL)
1700                 rte_memcpy(copy, str, size);
1701
1702         return copy;
1703 }
1704
1705 static int
1706 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1707 {
1708         struct sfc_adapter *sa = dev->data->dev_private;
1709         unsigned int avail_caps = 0;
1710         const char *rx_name = NULL;
1711         const char *tx_name = NULL;
1712         int rc;
1713
1714         switch (sa->family) {
1715         case EFX_FAMILY_HUNTINGTON:
1716         case EFX_FAMILY_MEDFORD:
1717                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1718                 break;
1719         default:
1720                 break;
1721         }
1722
1723         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1724                                 sfc_kvarg_string_handler, &rx_name);
1725         if (rc != 0)
1726                 goto fail_kvarg_rx_datapath;
1727
1728         if (rx_name != NULL) {
1729                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1730                 if (sa->dp_rx == NULL) {
1731                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1732                         rc = ENOENT;
1733                         goto fail_dp_rx;
1734                 }
1735                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1736                         sfc_err(sa,
1737                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1738                                 rx_name);
1739                         rc = EINVAL;
1740                         goto fail_dp_rx_caps;
1741                 }
1742         } else {
1743                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1744                 if (sa->dp_rx == NULL) {
1745                         sfc_err(sa, "Rx datapath by caps %#x not found",
1746                                 avail_caps);
1747                         rc = ENOENT;
1748                         goto fail_dp_rx;
1749                 }
1750         }
1751
1752         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1753         if (sa->dp_rx_name == NULL) {
1754                 rc = ENOMEM;
1755                 goto fail_dp_rx_name;
1756         }
1757
1758         sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1759
1760         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1761
1762         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1763                                 sfc_kvarg_string_handler, &tx_name);
1764         if (rc != 0)
1765                 goto fail_kvarg_tx_datapath;
1766
1767         if (tx_name != NULL) {
1768                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1769                 if (sa->dp_tx == NULL) {
1770                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1771                         rc = ENOENT;
1772                         goto fail_dp_tx;
1773                 }
1774                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1775                         sfc_err(sa,
1776                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1777                                 tx_name);
1778                         rc = EINVAL;
1779                         goto fail_dp_tx_caps;
1780                 }
1781         } else {
1782                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1783                 if (sa->dp_tx == NULL) {
1784                         sfc_err(sa, "Tx datapath by caps %#x not found",
1785                                 avail_caps);
1786                         rc = ENOENT;
1787                         goto fail_dp_tx;
1788                 }
1789         }
1790
1791         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1792         if (sa->dp_tx_name == NULL) {
1793                 rc = ENOMEM;
1794                 goto fail_dp_tx_name;
1795         }
1796
1797         sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1798
1799         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1800
1801         dev->dev_ops = &sfc_eth_dev_ops;
1802
1803         return 0;
1804
1805 fail_dp_tx_name:
1806 fail_dp_tx_caps:
1807         sa->dp_tx = NULL;
1808
1809 fail_dp_tx:
1810 fail_kvarg_tx_datapath:
1811         rte_free(sa->dp_rx_name);
1812         sa->dp_rx_name = NULL;
1813
1814 fail_dp_rx_name:
1815 fail_dp_rx_caps:
1816         sa->dp_rx = NULL;
1817
1818 fail_dp_rx:
1819 fail_kvarg_rx_datapath:
1820         return rc;
1821 }
1822
1823 static void
1824 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1825 {
1826         struct sfc_adapter *sa = dev->data->dev_private;
1827
1828         dev->dev_ops = NULL;
1829         dev->rx_pkt_burst = NULL;
1830         dev->tx_pkt_burst = NULL;
1831
1832         rte_free(sa->dp_tx_name);
1833         sa->dp_tx_name = NULL;
1834         sa->dp_tx = NULL;
1835
1836         rte_free(sa->dp_rx_name);
1837         sa->dp_rx_name = NULL;
1838         sa->dp_rx = NULL;
1839 }
1840
1841 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1842         .rxq_info_get                   = sfc_rx_queue_info_get,
1843         .txq_info_get                   = sfc_tx_queue_info_get,
1844 };
1845
1846 static int
1847 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1848 {
1849         /*
1850          * Device private data has really many process-local pointers.
1851          * Below code should be extremely careful to use data located
1852          * in shared memory only.
1853          */
1854         struct sfc_adapter *sa = dev->data->dev_private;
1855         const struct sfc_dp_rx *dp_rx;
1856         const struct sfc_dp_tx *dp_tx;
1857         int rc;
1858
1859         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1860         if (dp_rx == NULL) {
1861                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1862                 rc = ENOENT;
1863                 goto fail_dp_rx;
1864         }
1865         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1866                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1867                         sa->dp_tx_name);
1868                 rc = EINVAL;
1869                 goto fail_dp_rx_multi_process;
1870         }
1871
1872         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1873         if (dp_tx == NULL) {
1874                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1875                 rc = ENOENT;
1876                 goto fail_dp_tx;
1877         }
1878         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1879                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1880                         sa->dp_tx_name);
1881                 rc = EINVAL;
1882                 goto fail_dp_tx_multi_process;
1883         }
1884
1885         dev->rx_pkt_burst = dp_rx->pkt_burst;
1886         dev->tx_pkt_burst = dp_tx->pkt_burst;
1887         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1888
1889         return 0;
1890
1891 fail_dp_tx_multi_process:
1892 fail_dp_tx:
1893 fail_dp_rx_multi_process:
1894 fail_dp_rx:
1895         return rc;
1896 }
1897
1898 static void
1899 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1900 {
1901         dev->dev_ops = NULL;
1902         dev->tx_pkt_burst = NULL;
1903         dev->rx_pkt_burst = NULL;
1904 }
1905
1906 static void
1907 sfc_register_dp(void)
1908 {
1909         /* Register once */
1910         if (TAILQ_EMPTY(&sfc_dp_head)) {
1911                 /* Prefer EF10 datapath */
1912                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1913                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1914
1915                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1916                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1917                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1918         }
1919 }
1920
1921 static int
1922 sfc_eth_dev_init(struct rte_eth_dev *dev)
1923 {
1924         struct sfc_adapter *sa = dev->data->dev_private;
1925         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1926         int rc;
1927         const efx_nic_cfg_t *encp;
1928         const struct ether_addr *from;
1929
1930         sfc_register_dp();
1931
1932         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1933                 return -sfc_eth_dev_secondary_set_ops(dev);
1934
1935         /* Required for logging */
1936         sa->pci_addr = pci_dev->addr;
1937         sa->port_id = dev->data->port_id;
1938
1939         sa->eth_dev = dev;
1940
1941         /* Copy PCI device info to the dev->data */
1942         rte_eth_copy_pci_info(dev, pci_dev);
1943
1944         rc = sfc_kvargs_parse(sa);
1945         if (rc != 0)
1946                 goto fail_kvargs_parse;
1947
1948         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1949                                 sfc_kvarg_bool_handler, &sa->debug_init);
1950         if (rc != 0)
1951                 goto fail_kvarg_debug_init;
1952
1953         sfc_log_init(sa, "entry");
1954
1955         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1956         if (dev->data->mac_addrs == NULL) {
1957                 rc = ENOMEM;
1958                 goto fail_mac_addrs;
1959         }
1960
1961         sfc_adapter_lock_init(sa);
1962         sfc_adapter_lock(sa);
1963
1964         sfc_log_init(sa, "probing");
1965         rc = sfc_probe(sa);
1966         if (rc != 0)
1967                 goto fail_probe;
1968
1969         sfc_log_init(sa, "set device ops");
1970         rc = sfc_eth_dev_set_ops(dev);
1971         if (rc != 0)
1972                 goto fail_set_ops;
1973
1974         sfc_log_init(sa, "attaching");
1975         rc = sfc_attach(sa);
1976         if (rc != 0)
1977                 goto fail_attach;
1978
1979         encp = efx_nic_cfg_get(sa->nic);
1980
1981         /*
1982          * The arguments are really reverse order in comparison to
1983          * Linux kernel. Copy from NIC config to Ethernet device data.
1984          */
1985         from = (const struct ether_addr *)(encp->enc_mac_addr);
1986         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1987
1988         sfc_adapter_unlock(sa);
1989
1990         sfc_log_init(sa, "done");
1991         return 0;
1992
1993 fail_attach:
1994         sfc_eth_dev_clear_ops(dev);
1995
1996 fail_set_ops:
1997         sfc_unprobe(sa);
1998
1999 fail_probe:
2000         sfc_adapter_unlock(sa);
2001         sfc_adapter_lock_fini(sa);
2002         rte_free(dev->data->mac_addrs);
2003         dev->data->mac_addrs = NULL;
2004
2005 fail_mac_addrs:
2006 fail_kvarg_debug_init:
2007         sfc_kvargs_cleanup(sa);
2008
2009 fail_kvargs_parse:
2010         sfc_log_init(sa, "failed %d", rc);
2011         SFC_ASSERT(rc > 0);
2012         return -rc;
2013 }
2014
2015 static int
2016 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2017 {
2018         struct sfc_adapter *sa;
2019
2020         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2021                 sfc_eth_dev_secondary_clear_ops(dev);
2022                 return 0;
2023         }
2024
2025         sa = dev->data->dev_private;
2026         sfc_log_init(sa, "entry");
2027
2028         sfc_adapter_lock(sa);
2029
2030         sfc_eth_dev_clear_ops(dev);
2031
2032         sfc_detach(sa);
2033         sfc_unprobe(sa);
2034
2035         rte_free(dev->data->mac_addrs);
2036         dev->data->mac_addrs = NULL;
2037
2038         sfc_kvargs_cleanup(sa);
2039
2040         sfc_adapter_unlock(sa);
2041         sfc_adapter_lock_fini(sa);
2042
2043         sfc_log_init(sa, "done");
2044
2045         /* Required for logging, so cleanup last */
2046         sa->eth_dev = NULL;
2047         return 0;
2048 }
2049
2050 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2051         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2052         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2053         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2054         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2055         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2056         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2057         { .vendor_id = 0 /* sentinel */ }
2058 };
2059
2060 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2061         struct rte_pci_device *pci_dev)
2062 {
2063         return rte_eth_dev_pci_generic_probe(pci_dev,
2064                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2065 }
2066
2067 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2068 {
2069         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2070 }
2071
2072 static struct rte_pci_driver sfc_efx_pmd = {
2073         .id_table = pci_id_sfc_efx_map,
2074         .drv_flags =
2075                 RTE_PCI_DRV_INTR_LSC |
2076                 RTE_PCI_DRV_NEED_MAPPING,
2077         .probe = sfc_eth_dev_pci_probe,
2078         .remove = sfc_eth_dev_pci_remove,
2079 };
2080
2081 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2082 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2083 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2084 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2085         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2086         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2087         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2088         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
2089         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
2090         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);