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_pci.h>
  35 #include <rte_errno.h>
  36
  37 #include "efx.h"
  38
  39 #include "sfc.h"
  40 #include "sfc_debug.h"
  41 #include "sfc_log.h"
  42 #include "sfc_kvargs.h"
  43 #include "sfc_ev.h"
  44 #include "sfc_rx.h"
  45 #include "sfc_tx.h"
  46 #include "sfc_flow.h"
  47 #include "sfc_dp.h"
  48 #include "sfc_dp_rx.h"
  49
  50 static struct sfc_dp_list sfc_dp_head =
  51         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  52
  53 static int
  54 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  55 {
  56         struct sfc_adapter *sa = dev->data->dev_private;
  57         efx_nic_fw_info_t enfi;
  58         int ret;
  59         int rc;
  60
  61         /*
  62          * Return value of the callback is likely supposed to be
  63          * equal to or greater than 0, nevertheless, if an error
  64          * occurs, it will be desirable to pass it to the caller
  65          */
  66         if ((fw_version == NULL) || (fw_size == 0))
  67                 return -EINVAL;
  68
  69         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  70         if (rc != 0)
  71                 return -rc;
  72
  73         ret = snprintf(fw_version, fw_size,
  74                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  75                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  76                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  77         if (ret < 0)
  78                 return ret;
  79
  80         if (enfi.enfi_dpcpu_fw_ids_valid) {
  81                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  82                 int ret_extra;
  83
  84                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  85                                      fw_size - dpcpu_fw_ids_offset,
  86                                      " rx%" PRIx16 " tx%" PRIx16,
  87                                      enfi.enfi_rx_dpcpu_fw_id,
  88                                      enfi.enfi_tx_dpcpu_fw_id);
  89                 if (ret_extra < 0)
  90                         return ret_extra;
  91
  92                 ret += ret_extra;
  93         }
  94
  95         if (fw_size < (size_t)(++ret))
  96                 return ret;
  97         else
  98                 return 0;
  99 }
 100
 101 static void
 102 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 103 {
 104         struct sfc_adapter *sa = dev->data->dev_private;
 105         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 106
 107         sfc_log_init(sa, "entry");
 108
 109         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
 110         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 111
 112         /* Autonegotiation may be disabled */
 113         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 114         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 115                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 116         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 117                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 118         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 119                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 120
 121         dev_info->max_rx_queues = sa->rxq_max;
 122         dev_info->max_tx_queues = sa->txq_max;
 123
 124         /* By default packets are dropped if no descriptors are available */
 125         dev_info->default_rxconf.rx_drop_en = 1;
 126
 127         dev_info->rx_offload_capa =
 128                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 129                 DEV_RX_OFFLOAD_UDP_CKSUM |
 130                 DEV_RX_OFFLOAD_TCP_CKSUM;
 131
 132         dev_info->tx_offload_capa =
 133                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 134                 DEV_TX_OFFLOAD_UDP_CKSUM |
 135                 DEV_TX_OFFLOAD_TCP_CKSUM;
 136
 137         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 138         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 139             !encp->enc_hw_tx_insert_vlan_enabled)
 140                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 141         else
 142                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 143
 144         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 145                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 146
 147 #if EFSYS_OPT_RX_SCALE
 148         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 149                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 150                 dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
 151                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 152         }
 153 #endif
 154
 155         if (sa->tso)
 156                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 157
 158         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 159         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 160         /* The RXQ hardware requires that the descriptor count is a power
 161          * of 2, but rx_desc_lim cannot properly describe that constraint.
 162          */
 163         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 164
 165         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 166         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 167         /*
 168          * The TXQ hardware requires that the descriptor count is a power
 169          * of 2, but tx_desc_lim cannot properly describe that constraint
 170          */
 171         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 172 }
 173
 174 static const uint32_t *
 175 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 176 {
 177         struct sfc_adapter *sa = dev->data->dev_private;
 178
 179         return sa->dp_rx->supported_ptypes_get();
 180 }
 181
 182 static int
 183 sfc_dev_configure(struct rte_eth_dev *dev)
 184 {
 185         struct rte_eth_dev_data *dev_data = dev->data;
 186         struct sfc_adapter *sa = dev_data->dev_private;
 187         int rc;
 188
 189         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 190                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 191
 192         sfc_adapter_lock(sa);
 193         switch (sa->state) {
 194         case SFC_ADAPTER_CONFIGURED:
 195                 /* FALLTHROUGH */
 196         case SFC_ADAPTER_INITIALIZED:
 197                 rc = sfc_configure(sa);
 198                 break;
 199         default:
 200                 sfc_err(sa, "unexpected adapter state %u to configure",
 201                         sa->state);
 202                 rc = EINVAL;
 203                 break;
 204         }
 205         sfc_adapter_unlock(sa);
 206
 207         sfc_log_init(sa, "done %d", rc);
 208         SFC_ASSERT(rc >= 0);
 209         return -rc;
 210 }
 211
 212 static int
 213 sfc_dev_start(struct rte_eth_dev *dev)
 214 {
 215         struct sfc_adapter *sa = dev->data->dev_private;
 216         int rc;
 217
 218         sfc_log_init(sa, "entry");
 219
 220         sfc_adapter_lock(sa);
 221         rc = sfc_start(sa);
 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_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 231 {
 232         struct sfc_adapter *sa = dev->data->dev_private;
 233         struct rte_eth_link *dev_link = &dev->data->dev_link;
 234         struct rte_eth_link old_link;
 235         struct rte_eth_link current_link;
 236
 237         sfc_log_init(sa, "entry");
 238
 239 retry:
 240         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 241         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 242
 243         if (sa->state != SFC_ADAPTER_STARTED) {
 244                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 245                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 246                                          *(uint64_t *)&old_link,
 247                                          *(uint64_t *)&current_link))
 248                         goto retry;
 249         } else if (wait_to_complete) {
 250                 efx_link_mode_t link_mode;
 251
 252                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 253                         link_mode = EFX_LINK_UNKNOWN;
 254                 sfc_port_link_mode_to_info(link_mode, &current_link);
 255
 256                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 257                                          *(uint64_t *)&old_link,
 258                                          *(uint64_t *)&current_link))
 259                         goto retry;
 260         } else {
 261                 sfc_ev_mgmt_qpoll(sa);
 262                 *(int64_t *)&current_link =
 263                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 264         }
 265
 266         if (old_link.link_status != current_link.link_status)
 267                 sfc_info(sa, "Link status is %s",
 268                          current_link.link_status ? "UP" : "DOWN");
 269
 270         return old_link.link_status == current_link.link_status ? 0 : -1;
 271 }
 272
 273 static void
 274 sfc_dev_stop(struct rte_eth_dev *dev)
 275 {
 276         struct sfc_adapter *sa = dev->data->dev_private;
 277
 278         sfc_log_init(sa, "entry");
 279
 280         sfc_adapter_lock(sa);
 281         sfc_stop(sa);
 282         sfc_adapter_unlock(sa);
 283
 284         sfc_log_init(sa, "done");
 285 }
 286
 287 static int
 288 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 289 {
 290         struct sfc_adapter *sa = dev->data->dev_private;
 291         int rc;
 292
 293         sfc_log_init(sa, "entry");
 294
 295         sfc_adapter_lock(sa);
 296         rc = sfc_start(sa);
 297         sfc_adapter_unlock(sa);
 298
 299         SFC_ASSERT(rc >= 0);
 300         return -rc;
 301 }
 302
 303 static int
 304 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 305 {
 306         struct sfc_adapter *sa = dev->data->dev_private;
 307
 308         sfc_log_init(sa, "entry");
 309
 310         sfc_adapter_lock(sa);
 311         sfc_stop(sa);
 312         sfc_adapter_unlock(sa);
 313
 314         return 0;
 315 }
 316
 317 static void
 318 sfc_dev_close(struct rte_eth_dev *dev)
 319 {
 320         struct sfc_adapter *sa = dev->data->dev_private;
 321
 322         sfc_log_init(sa, "entry");
 323
 324         sfc_adapter_lock(sa);
 325         switch (sa->state) {
 326         case SFC_ADAPTER_STARTED:
 327                 sfc_stop(sa);
 328                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 329                 /* FALLTHROUGH */
 330         case SFC_ADAPTER_CONFIGURED:
 331                 sfc_close(sa);
 332                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 333                 /* FALLTHROUGH */
 334         case SFC_ADAPTER_INITIALIZED:
 335                 break;
 336         default:
 337                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 338                 break;
 339         }
 340         sfc_adapter_unlock(sa);
 341
 342         sfc_log_init(sa, "done");
 343 }
 344
 345 static void
 346 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 347                    boolean_t enabled)
 348 {
 349         struct sfc_port *port;
 350         boolean_t *toggle;
 351         struct sfc_adapter *sa = dev->data->dev_private;
 352         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 353         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 354
 355         sfc_adapter_lock(sa);
 356
 357         port = &sa->port;
 358         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 359
 360         if (*toggle != enabled) {
 361                 *toggle = enabled;
 362
 363                 if ((sa->state == SFC_ADAPTER_STARTED) &&
 364                     (sfc_set_rx_mode(sa) != 0)) {
 365                         *toggle = !(enabled);
 366                         sfc_warn(sa, "Failed to %s %s mode",
 367                                  ((enabled) ? "enable" : "disable"), desc);
 368                 }
 369         }
 370
 371         sfc_adapter_unlock(sa);
 372 }
 373
 374 static void
 375 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 376 {
 377         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 378 }
 379
 380 static void
 381 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 382 {
 383         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 384 }
 385
 386 static void
 387 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 388 {
 389         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 390 }
 391
 392 static void
 393 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 394 {
 395         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 396 }
 397
 398 static int
 399 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 400                    uint16_t nb_rx_desc, unsigned int socket_id,
 401                    const struct rte_eth_rxconf *rx_conf,
 402                    struct rte_mempool *mb_pool)
 403 {
 404         struct sfc_adapter *sa = dev->data->dev_private;
 405         int rc;
 406
 407         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 408                      rx_queue_id, nb_rx_desc, socket_id);
 409
 410         sfc_adapter_lock(sa);
 411
 412         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 413                           rx_conf, mb_pool);
 414         if (rc != 0)
 415                 goto fail_rx_qinit;
 416
 417         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 418
 419         sfc_adapter_unlock(sa);
 420
 421         return 0;
 422
 423 fail_rx_qinit:
 424         sfc_adapter_unlock(sa);
 425         SFC_ASSERT(rc > 0);
 426         return -rc;
 427 }
 428
 429 static void
 430 sfc_rx_queue_release(void *queue)
 431 {
 432         struct sfc_dp_rxq *dp_rxq = queue;
 433         struct sfc_rxq *rxq;
 434         struct sfc_adapter *sa;
 435         unsigned int sw_index;
 436
 437         if (dp_rxq == NULL)
 438                 return;
 439
 440         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 441         sa = rxq->evq->sa;
 442         sfc_adapter_lock(sa);
 443
 444         sw_index = sfc_rxq_sw_index(rxq);
 445
 446         sfc_log_init(sa, "RxQ=%u", sw_index);
 447
 448         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 449
 450         sfc_rx_qfini(sa, sw_index);
 451
 452         sfc_adapter_unlock(sa);
 453 }
 454
 455 static int
 456 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 457                    uint16_t nb_tx_desc, unsigned int socket_id,
 458                    const struct rte_eth_txconf *tx_conf)
 459 {
 460         struct sfc_adapter *sa = dev->data->dev_private;
 461         int rc;
 462
 463         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 464                      tx_queue_id, nb_tx_desc, socket_id);
 465
 466         sfc_adapter_lock(sa);
 467
 468         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 469         if (rc != 0)
 470                 goto fail_tx_qinit;
 471
 472         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 473
 474         sfc_adapter_unlock(sa);
 475         return 0;
 476
 477 fail_tx_qinit:
 478         sfc_adapter_unlock(sa);
 479         SFC_ASSERT(rc > 0);
 480         return -rc;
 481 }
 482
 483 static void
 484 sfc_tx_queue_release(void *queue)
 485 {
 486         struct sfc_dp_txq *dp_txq = queue;
 487         struct sfc_txq *txq;
 488         unsigned int sw_index;
 489         struct sfc_adapter *sa;
 490
 491         if (dp_txq == NULL)
 492                 return;
 493
 494         txq = sfc_txq_by_dp_txq(dp_txq);
 495         sw_index = sfc_txq_sw_index(txq);
 496
 497         SFC_ASSERT(txq->evq != NULL);
 498         sa = txq->evq->sa;
 499
 500         sfc_log_init(sa, "TxQ = %u", sw_index);
 501
 502         sfc_adapter_lock(sa);
 503
 504         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 505         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 506
 507         sfc_tx_qfini(sa, sw_index);
 508
 509         sfc_adapter_unlock(sa);
 510 }
 511
 512 static void
 513 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 514 {
 515         struct sfc_adapter *sa = dev->data->dev_private;
 516         struct sfc_port *port = &sa->port;
 517         uint64_t *mac_stats;
 518
 519         rte_spinlock_lock(&port->mac_stats_lock);
 520
 521         if (sfc_port_update_mac_stats(sa) != 0)
 522                 goto unlock;
 523
 524         mac_stats = port->mac_stats_buf;
 525
 526         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 527                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 528                 stats->ipackets =
 529                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 530                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 531                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 532                 stats->opackets =
 533                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 534                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 535                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 536                 stats->ibytes =
 537                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 538                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 539                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 540                 stats->obytes =
 541                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 542                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 543                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 544                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 545                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 546                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 547         } else {
 548                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 549                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 550                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 551                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 552                 /*
 553                  * Take into account stats which are whenever supported
 554                  * on EF10. If some stat is not supported by current
 555                  * firmware variant or HW revision, it is guaranteed
 556                  * to be zero in mac_stats.
 557                  */
 558                 stats->imissed =
 559                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 560                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 561                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 562                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 563                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 564                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 565                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 566                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 567                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 568                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 569                 stats->ierrors =
 570                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 571                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 572                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 573                 /* no oerrors counters supported on EF10 */
 574         }
 575
 576 unlock:
 577         rte_spinlock_unlock(&port->mac_stats_lock);
 578 }
 579
 580 static void
 581 sfc_stats_reset(struct rte_eth_dev *dev)
 582 {
 583         struct sfc_adapter *sa = dev->data->dev_private;
 584         struct sfc_port *port = &sa->port;
 585         int rc;
 586
 587         if (sa->state != SFC_ADAPTER_STARTED) {
 588                 /*
 589                  * The operation cannot be done if port is not started; it
 590                  * will be scheduled to be done during the next port start
 591                  */
 592                 port->mac_stats_reset_pending = B_TRUE;
 593                 return;
 594         }
 595
 596         rc = sfc_port_reset_mac_stats(sa);
 597         if (rc != 0)
 598                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 599 }
 600
 601 static int
 602 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 603                unsigned int xstats_count)
 604 {
 605         struct sfc_adapter *sa = dev->data->dev_private;
 606         struct sfc_port *port = &sa->port;
 607         uint64_t *mac_stats;
 608         int rc;
 609         unsigned int i;
 610         int nstats = 0;
 611
 612         rte_spinlock_lock(&port->mac_stats_lock);
 613
 614         rc = sfc_port_update_mac_stats(sa);
 615         if (rc != 0) {
 616                 SFC_ASSERT(rc > 0);
 617                 nstats = -rc;
 618                 goto unlock;
 619         }
 620
 621         mac_stats = port->mac_stats_buf;
 622
 623         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 624                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 625                         if (xstats != NULL && nstats < (int)xstats_count) {
 626                                 xstats[nstats].id = nstats;
 627                                 xstats[nstats].value = mac_stats[i];
 628                         }
 629                         nstats++;
 630                 }
 631         }
 632
 633 unlock:
 634         rte_spinlock_unlock(&port->mac_stats_lock);
 635
 636         return nstats;
 637 }
 638
 639 static int
 640 sfc_xstats_get_names(struct rte_eth_dev *dev,
 641                      struct rte_eth_xstat_name *xstats_names,
 642                      unsigned int xstats_count)
 643 {
 644         struct sfc_adapter *sa = dev->data->dev_private;
 645         struct sfc_port *port = &sa->port;
 646         unsigned int i;
 647         unsigned int nstats = 0;
 648
 649         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 650                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 651                         if (xstats_names != NULL && nstats < xstats_count)
 652                                 strncpy(xstats_names[nstats].name,
 653                                         efx_mac_stat_name(sa->nic, i),
 654                                         sizeof(xstats_names[0].name));
 655                         nstats++;
 656                 }
 657         }
 658
 659         return nstats;
 660 }
 661
 662 static int
 663 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 664 {
 665         struct sfc_adapter *sa = dev->data->dev_private;
 666         unsigned int wanted_fc, link_fc;
 667
 668         memset(fc_conf, 0, sizeof(*fc_conf));
 669
 670         sfc_adapter_lock(sa);
 671
 672         if (sa->state == SFC_ADAPTER_STARTED)
 673                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 674         else
 675                 link_fc = sa->port.flow_ctrl;
 676
 677         switch (link_fc) {
 678         case 0:
 679                 fc_conf->mode = RTE_FC_NONE;
 680                 break;
 681         case EFX_FCNTL_RESPOND:
 682                 fc_conf->mode = RTE_FC_RX_PAUSE;
 683                 break;
 684         case EFX_FCNTL_GENERATE:
 685                 fc_conf->mode = RTE_FC_TX_PAUSE;
 686                 break;
 687         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 688                 fc_conf->mode = RTE_FC_FULL;
 689                 break;
 690         default:
 691                 sfc_err(sa, "%s: unexpected flow control value %#x",
 692                         __func__, link_fc);
 693         }
 694
 695         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 696
 697         sfc_adapter_unlock(sa);
 698
 699         return 0;
 700 }
 701
 702 static int
 703 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 704 {
 705         struct sfc_adapter *sa = dev->data->dev_private;
 706         struct sfc_port *port = &sa->port;
 707         unsigned int fcntl;
 708         int rc;
 709
 710         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 711             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 712             fc_conf->mac_ctrl_frame_fwd != 0) {
 713                 sfc_err(sa, "unsupported flow control settings specified");
 714                 rc = EINVAL;
 715                 goto fail_inval;
 716         }
 717
 718         switch (fc_conf->mode) {
 719         case RTE_FC_NONE:
 720                 fcntl = 0;
 721                 break;
 722         case RTE_FC_RX_PAUSE:
 723                 fcntl = EFX_FCNTL_RESPOND;
 724                 break;
 725         case RTE_FC_TX_PAUSE:
 726                 fcntl = EFX_FCNTL_GENERATE;
 727                 break;
 728         case RTE_FC_FULL:
 729                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 730                 break;
 731         default:
 732                 rc = EINVAL;
 733                 goto fail_inval;
 734         }
 735
 736         sfc_adapter_lock(sa);
 737
 738         if (sa->state == SFC_ADAPTER_STARTED) {
 739                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 740                 if (rc != 0)
 741                         goto fail_mac_fcntl_set;
 742         }
 743
 744         port->flow_ctrl = fcntl;
 745         port->flow_ctrl_autoneg = fc_conf->autoneg;
 746
 747         sfc_adapter_unlock(sa);
 748
 749         return 0;
 750
 751 fail_mac_fcntl_set:
 752         sfc_adapter_unlock(sa);
 753 fail_inval:
 754         SFC_ASSERT(rc > 0);
 755         return -rc;
 756 }
 757
 758 static int
 759 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 760 {
 761         struct sfc_adapter *sa = dev->data->dev_private;
 762         size_t pdu = EFX_MAC_PDU(mtu);
 763         size_t old_pdu;
 764         int rc;
 765
 766         sfc_log_init(sa, "mtu=%u", mtu);
 767
 768         rc = EINVAL;
 769         if (pdu < EFX_MAC_PDU_MIN) {
 770                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 771                         (unsigned int)mtu, (unsigned int)pdu,
 772                         EFX_MAC_PDU_MIN);
 773                 goto fail_inval;
 774         }
 775         if (pdu > EFX_MAC_PDU_MAX) {
 776                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 777                         (unsigned int)mtu, (unsigned int)pdu,
 778                         EFX_MAC_PDU_MAX);
 779                 goto fail_inval;
 780         }
 781
 782         sfc_adapter_lock(sa);
 783
 784         if (pdu != sa->port.pdu) {
 785                 if (sa->state == SFC_ADAPTER_STARTED) {
 786                         sfc_stop(sa);
 787
 788                         old_pdu = sa->port.pdu;
 789                         sa->port.pdu = pdu;
 790                         rc = sfc_start(sa);
 791                         if (rc != 0)
 792                                 goto fail_start;
 793                 } else {
 794                         sa->port.pdu = pdu;
 795                 }
 796         }
 797
 798         /*
 799          * The driver does not use it, but other PMDs update jumbo_frame
 800          * flag and max_rx_pkt_len when MTU is set.
 801          */
 802         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 803         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 804
 805         sfc_adapter_unlock(sa);
 806
 807         sfc_log_init(sa, "done");
 808         return 0;
 809
 810 fail_start:
 811         sa->port.pdu = old_pdu;
 812         if (sfc_start(sa) != 0)
 813                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 814                         "PDU max size - port is stopped",
 815                         (unsigned int)pdu, (unsigned int)old_pdu);
 816         sfc_adapter_unlock(sa);
 817
 818 fail_inval:
 819         sfc_log_init(sa, "failed %d", rc);
 820         SFC_ASSERT(rc > 0);
 821         return -rc;
 822 }
 823 static void
 824 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 825 {
 826         struct sfc_adapter *sa = dev->data->dev_private;
 827         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 828         int rc;
 829
 830         sfc_adapter_lock(sa);
 831
 832         if (sa->state != SFC_ADAPTER_STARTED) {
 833                 sfc_info(sa, "the port is not started");
 834                 sfc_info(sa, "the new MAC address will be set on port start");
 835
 836                 goto unlock;
 837         }
 838
 839         if (encp->enc_allow_set_mac_with_installed_filters) {
 840                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 841                 if (rc != 0) {
 842                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 843                         goto unlock;
 844                 }
 845
 846                 /*
 847                  * Changing the MAC address by means of MCDI request
 848                  * has no effect on received traffic, therefore
 849                  * we also need to update unicast filters
 850                  */
 851                 rc = sfc_set_rx_mode(sa);
 852                 if (rc != 0)
 853                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 854         } else {
 855                 sfc_warn(sa, "cannot set MAC address with filters installed");
 856                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 857                 sfc_warn(sa, "(some traffic may be dropped)");
 858
 859                 /*
 860                  * Since setting MAC address with filters installed is not
 861                  * allowed on the adapter, one needs to simply restart adapter
 862                  * so that the new MAC address will be taken from an outer
 863                  * storage and set flawlessly by means of sfc_start() call
 864                  */
 865                 sfc_stop(sa);
 866                 rc = sfc_start(sa);
 867                 if (rc != 0)
 868                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 869         }
 870
 871 unlock:
 872         sfc_adapter_unlock(sa);
 873 }
 874
 875
 876 static int
 877 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 878                      uint32_t nb_mc_addr)
 879 {
 880         struct sfc_adapter *sa = dev->data->dev_private;
 881         struct sfc_port *port = &sa->port;
 882         uint8_t *mc_addrs = port->mcast_addrs;
 883         int rc;
 884         unsigned int i;
 885
 886         if (mc_addrs == NULL)
 887                 return -ENOBUFS;
 888
 889         if (nb_mc_addr > port->max_mcast_addrs) {
 890                 sfc_err(sa, "too many multicast addresses: %u > %u",
 891                          nb_mc_addr, port->max_mcast_addrs);
 892                 return -EINVAL;
 893         }
 894
 895         for (i = 0; i < nb_mc_addr; ++i) {
 896                 (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 897                                  EFX_MAC_ADDR_LEN);
 898                 mc_addrs += EFX_MAC_ADDR_LEN;
 899         }
 900
 901         port->nb_mcast_addrs = nb_mc_addr;
 902
 903         if (sa->state != SFC_ADAPTER_STARTED)
 904                 return 0;
 905
 906         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
 907                                         port->nb_mcast_addrs);
 908         if (rc != 0)
 909                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 910
 911         SFC_ASSERT(rc > 0);
 912         return -rc;
 913 }
 914
 915 static void
 916 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 917                       struct rte_eth_rxq_info *qinfo)
 918 {
 919         struct sfc_adapter *sa = dev->data->dev_private;
 920         struct sfc_rxq_info *rxq_info;
 921         struct sfc_rxq *rxq;
 922
 923         sfc_adapter_lock(sa);
 924
 925         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 926
 927         rxq_info = &sa->rxq_info[rx_queue_id];
 928         rxq = rxq_info->rxq;
 929         SFC_ASSERT(rxq != NULL);
 930
 931         qinfo->mp = rxq->refill_mb_pool;
 932         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 933         qinfo->conf.rx_drop_en = 1;
 934         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 935         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 936         qinfo->nb_desc = rxq_info->entries;
 937
 938         sfc_adapter_unlock(sa);
 939 }
 940
 941 static void
 942 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 943                       struct rte_eth_txq_info *qinfo)
 944 {
 945         struct sfc_adapter *sa = dev->data->dev_private;
 946         struct sfc_txq_info *txq_info;
 947
 948         sfc_adapter_lock(sa);
 949
 950         SFC_ASSERT(tx_queue_id < sa->txq_count);
 951
 952         txq_info = &sa->txq_info[tx_queue_id];
 953         SFC_ASSERT(txq_info->txq != NULL);
 954
 955         memset(qinfo, 0, sizeof(*qinfo));
 956
 957         qinfo->conf.txq_flags = txq_info->txq->flags;
 958         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 959         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 960         qinfo->nb_desc = txq_info->entries;
 961
 962         sfc_adapter_unlock(sa);
 963 }
 964
 965 static uint32_t
 966 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 967 {
 968         struct sfc_adapter *sa = dev->data->dev_private;
 969
 970         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 971
 972         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 973 }
 974
 975 static int
 976 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 977 {
 978         struct sfc_dp_rxq *dp_rxq = queue;
 979
 980         return sfc_rx_qdesc_done(dp_rxq, offset);
 981 }
 982
 983 static int
 984 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 985 {
 986         struct sfc_adapter *sa = dev->data->dev_private;
 987         int rc;
 988
 989         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 990
 991         sfc_adapter_lock(sa);
 992
 993         rc = EINVAL;
 994         if (sa->state != SFC_ADAPTER_STARTED)
 995                 goto fail_not_started;
 996
 997         rc = sfc_rx_qstart(sa, rx_queue_id);
 998         if (rc != 0)
 999                 goto fail_rx_qstart;
1000
1001         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1002
1003         sfc_adapter_unlock(sa);
1004
1005         return 0;
1006
1007 fail_rx_qstart:
1008 fail_not_started:
1009         sfc_adapter_unlock(sa);
1010         SFC_ASSERT(rc > 0);
1011         return -rc;
1012 }
1013
1014 static int
1015 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1016 {
1017         struct sfc_adapter *sa = dev->data->dev_private;
1018
1019         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1020
1021         sfc_adapter_lock(sa);
1022         sfc_rx_qstop(sa, rx_queue_id);
1023
1024         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1025
1026         sfc_adapter_unlock(sa);
1027
1028         return 0;
1029 }
1030
1031 static int
1032 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1033 {
1034         struct sfc_adapter *sa = dev->data->dev_private;
1035         int rc;
1036
1037         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1038
1039         sfc_adapter_lock(sa);
1040
1041         rc = EINVAL;
1042         if (sa->state != SFC_ADAPTER_STARTED)
1043                 goto fail_not_started;
1044
1045         rc = sfc_tx_qstart(sa, tx_queue_id);
1046         if (rc != 0)
1047                 goto fail_tx_qstart;
1048
1049         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1050
1051         sfc_adapter_unlock(sa);
1052         return 0;
1053
1054 fail_tx_qstart:
1055
1056 fail_not_started:
1057         sfc_adapter_unlock(sa);
1058         SFC_ASSERT(rc > 0);
1059         return -rc;
1060 }
1061
1062 static int
1063 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1064 {
1065         struct sfc_adapter *sa = dev->data->dev_private;
1066
1067         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1068
1069         sfc_adapter_lock(sa);
1070
1071         sfc_tx_qstop(sa, tx_queue_id);
1072
1073         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1074
1075         sfc_adapter_unlock(sa);
1076         return 0;
1077 }
1078
1079 #if EFSYS_OPT_RX_SCALE
1080 static int
1081 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1082                           struct rte_eth_rss_conf *rss_conf)
1083 {
1084         struct sfc_adapter *sa = dev->data->dev_private;
1085
1086         if ((sa->rss_channels == 1) ||
1087             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1088                 return -ENOTSUP;
1089
1090         sfc_adapter_lock(sa);
1091
1092         /*
1093          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1094          * hence, conversion is done here to derive a correct set of ETH_RSS
1095          * flags which corresponds to the active EFX configuration stored
1096          * locally in 'sfc_adapter' and kept up-to-date
1097          */
1098         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1099         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1100         if (rss_conf->rss_key != NULL)
1101                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1102
1103         sfc_adapter_unlock(sa);
1104
1105         return 0;
1106 }
1107
1108 static int
1109 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1110                         struct rte_eth_rss_conf *rss_conf)
1111 {
1112         struct sfc_adapter *sa = dev->data->dev_private;
1113         unsigned int efx_hash_types;
1114         int rc = 0;
1115
1116         if ((sa->rss_channels == 1) ||
1117             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1118                 sfc_err(sa, "RSS is not available");
1119                 return -ENOTSUP;
1120         }
1121
1122         if ((rss_conf->rss_key != NULL) &&
1123             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1124                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1125                         sizeof(sa->rss_key));
1126                 return -EINVAL;
1127         }
1128
1129         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1130                 sfc_err(sa, "unsupported hash functions requested");
1131                 return -EINVAL;
1132         }
1133
1134         sfc_adapter_lock(sa);
1135
1136         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1137
1138         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1139                                    efx_hash_types, B_TRUE);
1140         if (rc != 0)
1141                 goto fail_scale_mode_set;
1142
1143         if (rss_conf->rss_key != NULL) {
1144                 if (sa->state == SFC_ADAPTER_STARTED) {
1145                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1146                                                   sizeof(sa->rss_key));
1147                         if (rc != 0)
1148                                 goto fail_scale_key_set;
1149                 }
1150
1151                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1152         }
1153
1154         sa->rss_hash_types = efx_hash_types;
1155
1156         sfc_adapter_unlock(sa);
1157
1158         return 0;
1159
1160 fail_scale_key_set:
1161         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1162                                   sa->rss_hash_types, B_TRUE) != 0)
1163                 sfc_err(sa, "failed to restore RSS mode");
1164
1165 fail_scale_mode_set:
1166         sfc_adapter_unlock(sa);
1167         return -rc;
1168 }
1169
1170 static int
1171 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1172                        struct rte_eth_rss_reta_entry64 *reta_conf,
1173                        uint16_t reta_size)
1174 {
1175         struct sfc_adapter *sa = dev->data->dev_private;
1176         int entry;
1177
1178         if ((sa->rss_channels == 1) ||
1179             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1180                 return -ENOTSUP;
1181
1182         if (reta_size != EFX_RSS_TBL_SIZE)
1183                 return -EINVAL;
1184
1185         sfc_adapter_lock(sa);
1186
1187         for (entry = 0; entry < reta_size; entry++) {
1188                 int grp = entry / RTE_RETA_GROUP_SIZE;
1189                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1190
1191                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1192                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1193         }
1194
1195         sfc_adapter_unlock(sa);
1196
1197         return 0;
1198 }
1199
1200 static int
1201 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1202                         struct rte_eth_rss_reta_entry64 *reta_conf,
1203                         uint16_t reta_size)
1204 {
1205         struct sfc_adapter *sa = dev->data->dev_private;
1206         unsigned int *rss_tbl_new;
1207         uint16_t entry;
1208         int rc;
1209
1210
1211         if ((sa->rss_channels == 1) ||
1212             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1213                 sfc_err(sa, "RSS is not available");
1214                 return -ENOTSUP;
1215         }
1216
1217         if (reta_size != EFX_RSS_TBL_SIZE) {
1218                 sfc_err(sa, "RETA size is wrong (should be %u)",
1219                         EFX_RSS_TBL_SIZE);
1220                 return -EINVAL;
1221         }
1222
1223         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1224         if (rss_tbl_new == NULL)
1225                 return -ENOMEM;
1226
1227         sfc_adapter_lock(sa);
1228
1229         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1230
1231         for (entry = 0; entry < reta_size; entry++) {
1232                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1233                 struct rte_eth_rss_reta_entry64 *grp;
1234
1235                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1236
1237                 if (grp->mask & (1ull << grp_idx)) {
1238                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1239                                 rc = EINVAL;
1240                                 goto bad_reta_entry;
1241                         }
1242                         rss_tbl_new[entry] = grp->reta[grp_idx];
1243                 }
1244         }
1245
1246         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1247         if (rc == 0)
1248                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1249
1250 bad_reta_entry:
1251         sfc_adapter_unlock(sa);
1252
1253         rte_free(rss_tbl_new);
1254
1255         SFC_ASSERT(rc >= 0);
1256         return -rc;
1257 }
1258 #endif
1259
1260 static int
1261 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1262                     enum rte_filter_op filter_op,
1263                     void *arg)
1264 {
1265         struct sfc_adapter *sa = dev->data->dev_private;
1266         int rc = ENOTSUP;
1267
1268         sfc_log_init(sa, "entry");
1269
1270         switch (filter_type) {
1271         case RTE_ETH_FILTER_NONE:
1272                 sfc_err(sa, "Global filters configuration not supported");
1273                 break;
1274         case RTE_ETH_FILTER_MACVLAN:
1275                 sfc_err(sa, "MACVLAN filters not supported");
1276                 break;
1277         case RTE_ETH_FILTER_ETHERTYPE:
1278                 sfc_err(sa, "EtherType filters not supported");
1279                 break;
1280         case RTE_ETH_FILTER_FLEXIBLE:
1281                 sfc_err(sa, "Flexible filters not supported");
1282                 break;
1283         case RTE_ETH_FILTER_SYN:
1284                 sfc_err(sa, "SYN filters not supported");
1285                 break;
1286         case RTE_ETH_FILTER_NTUPLE:
1287                 sfc_err(sa, "NTUPLE filters not supported");
1288                 break;
1289         case RTE_ETH_FILTER_TUNNEL:
1290                 sfc_err(sa, "Tunnel filters not supported");
1291                 break;
1292         case RTE_ETH_FILTER_FDIR:
1293                 sfc_err(sa, "Flow Director filters not supported");
1294                 break;
1295         case RTE_ETH_FILTER_HASH:
1296                 sfc_err(sa, "Hash filters not supported");
1297                 break;
1298         case RTE_ETH_FILTER_GENERIC:
1299                 if (filter_op != RTE_ETH_FILTER_GET) {
1300                         rc = EINVAL;
1301                 } else {
1302                         *(const void **)arg = &sfc_flow_ops;
1303                         rc = 0;
1304                 }
1305                 break;
1306         default:
1307                 sfc_err(sa, "Unknown filter type %u", filter_type);
1308                 break;
1309         }
1310
1311         sfc_log_init(sa, "exit: %d", -rc);
1312         SFC_ASSERT(rc >= 0);
1313         return -rc;
1314 }
1315
1316 static const struct eth_dev_ops sfc_eth_dev_ops = {
1317         .dev_configure                  = sfc_dev_configure,
1318         .dev_start                      = sfc_dev_start,
1319         .dev_stop                       = sfc_dev_stop,
1320         .dev_set_link_up                = sfc_dev_set_link_up,
1321         .dev_set_link_down              = sfc_dev_set_link_down,
1322         .dev_close                      = sfc_dev_close,
1323         .promiscuous_enable             = sfc_dev_promisc_enable,
1324         .promiscuous_disable            = sfc_dev_promisc_disable,
1325         .allmulticast_enable            = sfc_dev_allmulti_enable,
1326         .allmulticast_disable           = sfc_dev_allmulti_disable,
1327         .link_update                    = sfc_dev_link_update,
1328         .stats_get                      = sfc_stats_get,
1329         .stats_reset                    = sfc_stats_reset,
1330         .xstats_get                     = sfc_xstats_get,
1331         .xstats_reset                   = sfc_stats_reset,
1332         .xstats_get_names               = sfc_xstats_get_names,
1333         .dev_infos_get                  = sfc_dev_infos_get,
1334         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1335         .mtu_set                        = sfc_dev_set_mtu,
1336         .rx_queue_start                 = sfc_rx_queue_start,
1337         .rx_queue_stop                  = sfc_rx_queue_stop,
1338         .tx_queue_start                 = sfc_tx_queue_start,
1339         .tx_queue_stop                  = sfc_tx_queue_stop,
1340         .rx_queue_setup                 = sfc_rx_queue_setup,
1341         .rx_queue_release               = sfc_rx_queue_release,
1342         .rx_queue_count                 = sfc_rx_queue_count,
1343         .rx_descriptor_done             = sfc_rx_descriptor_done,
1344         .tx_queue_setup                 = sfc_tx_queue_setup,
1345         .tx_queue_release               = sfc_tx_queue_release,
1346         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1347         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1348         .mac_addr_set                   = sfc_mac_addr_set,
1349 #if EFSYS_OPT_RX_SCALE
1350         .reta_update                    = sfc_dev_rss_reta_update,
1351         .reta_query                     = sfc_dev_rss_reta_query,
1352         .rss_hash_update                = sfc_dev_rss_hash_update,
1353         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1354 #endif
1355         .filter_ctrl                    = sfc_dev_filter_ctrl,
1356         .set_mc_addr_list               = sfc_set_mc_addr_list,
1357         .rxq_info_get                   = sfc_rx_queue_info_get,
1358         .txq_info_get                   = sfc_tx_queue_info_get,
1359         .fw_version_get                 = sfc_fw_version_get,
1360 };
1361
1362 static int
1363 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1364 {
1365         struct sfc_adapter *sa = dev->data->dev_private;
1366         unsigned int avail_caps = 0;
1367         const char *rx_name = NULL;
1368         const char *tx_name = NULL;
1369         int rc;
1370
1371         switch (sa->family) {
1372         case EFX_FAMILY_HUNTINGTON:
1373         case EFX_FAMILY_MEDFORD:
1374                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1375                 break;
1376         default:
1377                 break;
1378         }
1379
1380         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1381                                 sfc_kvarg_string_handler, &rx_name);
1382         if (rc != 0)
1383                 goto fail_kvarg_rx_datapath;
1384
1385         if (rx_name != NULL) {
1386                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1387                 if (sa->dp_rx == NULL) {
1388                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1389                         rc = ENOENT;
1390                         goto fail_dp_rx;
1391                 }
1392                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1393                         sfc_err(sa,
1394                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1395                                 rx_name);
1396                         rc = EINVAL;
1397                         goto fail_dp_rx;
1398                 }
1399         } else {
1400                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1401                 if (sa->dp_rx == NULL) {
1402                         sfc_err(sa, "Rx datapath by caps %#x not found",
1403                                 avail_caps);
1404                         rc = ENOENT;
1405                         goto fail_dp_rx;
1406                 }
1407         }
1408
1409         sfc_info(sa, "use %s Rx datapath", sa->dp_rx->dp.name);
1410
1411         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1412
1413         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1414                                 sfc_kvarg_string_handler, &tx_name);
1415         if (rc != 0)
1416                 goto fail_kvarg_tx_datapath;
1417
1418         if (tx_name != NULL) {
1419                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1420                 if (sa->dp_tx == NULL) {
1421                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1422                         rc = ENOENT;
1423                         goto fail_dp_tx;
1424                 }
1425                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1426                         sfc_err(sa,
1427                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1428                                 tx_name);
1429                         rc = EINVAL;
1430                         goto fail_dp_tx;
1431                 }
1432         } else {
1433                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1434                 if (sa->dp_tx == NULL) {
1435                         sfc_err(sa, "Tx datapath by caps %#x not found",
1436                                 avail_caps);
1437                         rc = ENOENT;
1438                         goto fail_dp_tx;
1439                 }
1440         }
1441
1442         sfc_info(sa, "use %s Tx datapath", sa->dp_tx->dp.name);
1443
1444         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1445
1446         dev->dev_ops = &sfc_eth_dev_ops;
1447
1448         return 0;
1449
1450 fail_dp_tx:
1451 fail_kvarg_tx_datapath:
1452 fail_dp_rx:
1453 fail_kvarg_rx_datapath:
1454         return rc;
1455 }
1456
1457 static void
1458 sfc_register_dp(void)
1459 {
1460         /* Register once */
1461         if (TAILQ_EMPTY(&sfc_dp_head)) {
1462                 /* Prefer EF10 datapath */
1463                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1464                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1465
1466                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1467                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1468                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1469         }
1470 }
1471
1472 static int
1473 sfc_eth_dev_init(struct rte_eth_dev *dev)
1474 {
1475         struct sfc_adapter *sa = dev->data->dev_private;
1476         struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
1477         int rc;
1478         const efx_nic_cfg_t *encp;
1479         const struct ether_addr *from;
1480
1481         sfc_register_dp();
1482
1483         /* Required for logging */
1484         sa->eth_dev = dev;
1485
1486         /* Copy PCI device info to the dev->data */
1487         rte_eth_copy_pci_info(dev, pci_dev);
1488
1489         rc = sfc_kvargs_parse(sa);
1490         if (rc != 0)
1491                 goto fail_kvargs_parse;
1492
1493         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1494                                 sfc_kvarg_bool_handler, &sa->debug_init);
1495         if (rc != 0)
1496                 goto fail_kvarg_debug_init;
1497
1498         sfc_log_init(sa, "entry");
1499
1500         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1501         if (dev->data->mac_addrs == NULL) {
1502                 rc = ENOMEM;
1503                 goto fail_mac_addrs;
1504         }
1505
1506         sfc_adapter_lock_init(sa);
1507         sfc_adapter_lock(sa);
1508
1509         sfc_log_init(sa, "probing");
1510         rc = sfc_probe(sa);
1511         if (rc != 0)
1512                 goto fail_probe;
1513
1514         sfc_log_init(sa, "set device ops");
1515         rc = sfc_eth_dev_set_ops(dev);
1516         if (rc != 0)
1517                 goto fail_set_ops;
1518
1519         sfc_log_init(sa, "attaching");
1520         rc = sfc_attach(sa);
1521         if (rc != 0)
1522                 goto fail_attach;
1523
1524         encp = efx_nic_cfg_get(sa->nic);
1525
1526         /*
1527          * The arguments are really reverse order in comparison to
1528          * Linux kernel. Copy from NIC config to Ethernet device data.
1529          */
1530         from = (const struct ether_addr *)(encp->enc_mac_addr);
1531         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1532
1533         sfc_adapter_unlock(sa);
1534
1535         sfc_log_init(sa, "done");
1536         return 0;
1537
1538 fail_attach:
1539 fail_set_ops:
1540         sfc_unprobe(sa);
1541
1542 fail_probe:
1543         sfc_adapter_unlock(sa);
1544         sfc_adapter_lock_fini(sa);
1545         rte_free(dev->data->mac_addrs);
1546         dev->data->mac_addrs = NULL;
1547
1548 fail_mac_addrs:
1549 fail_kvarg_debug_init:
1550         sfc_kvargs_cleanup(sa);
1551
1552 fail_kvargs_parse:
1553         sfc_log_init(sa, "failed %d", rc);
1554         SFC_ASSERT(rc > 0);
1555         return -rc;
1556 }
1557
1558 static int
1559 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1560 {
1561         struct sfc_adapter *sa = dev->data->dev_private;
1562
1563         sfc_log_init(sa, "entry");
1564
1565         sfc_adapter_lock(sa);
1566
1567         sfc_detach(sa);
1568         sfc_unprobe(sa);
1569
1570         rte_free(dev->data->mac_addrs);
1571         dev->data->mac_addrs = NULL;
1572
1573         dev->dev_ops = NULL;
1574         dev->rx_pkt_burst = NULL;
1575         dev->tx_pkt_burst = NULL;
1576
1577         sfc_kvargs_cleanup(sa);
1578
1579         sfc_adapter_unlock(sa);
1580         sfc_adapter_lock_fini(sa);
1581
1582         sfc_log_init(sa, "done");
1583
1584         /* Required for logging, so cleanup last */
1585         sa->eth_dev = NULL;
1586         return 0;
1587 }
1588
1589 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1590         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1591         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1592         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1593         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1594         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1595         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1596         { .vendor_id = 0 /* sentinel */ }
1597 };
1598
1599 static struct eth_driver sfc_efx_pmd = {
1600         .pci_drv = {
1601                 .id_table = pci_id_sfc_efx_map,
1602                 .drv_flags =
1603                         RTE_PCI_DRV_INTR_LSC |
1604                         RTE_PCI_DRV_NEED_MAPPING,
1605                 .probe = rte_eth_dev_pci_probe,
1606                 .remove = rte_eth_dev_pci_remove,
1607         },
1608         .eth_dev_init = sfc_eth_dev_init,
1609         .eth_dev_uninit = sfc_eth_dev_uninit,
1610         .dev_private_size = sizeof(struct sfc_adapter),
1611 };
1612
1613 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
1614 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1615 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio");
1616 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1617         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
1618         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
1619         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1620         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1621         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1622         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);