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 EFSYS_OPT_RX_SCALE
 145         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 146                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 147                 dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
 148                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 149         }
 150 #endif
 151
 152         if (sa->tso)
 153                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 154
 155         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 156         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 157         /* The RXQ hardware requires that the descriptor count is a power
 158          * of 2, but rx_desc_lim cannot properly describe that constraint.
 159          */
 160         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 161
 162         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 163         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 164         /*
 165          * The TXQ hardware requires that the descriptor count is a power
 166          * of 2, but tx_desc_lim cannot properly describe that constraint
 167          */
 168         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 169 }
 170
 171 static const uint32_t *
 172 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 173 {
 174         struct sfc_adapter *sa = dev->data->dev_private;
 175
 176         return sa->dp_rx->supported_ptypes_get();
 177 }
 178
 179 static int
 180 sfc_dev_configure(struct rte_eth_dev *dev)
 181 {
 182         struct rte_eth_dev_data *dev_data = dev->data;
 183         struct sfc_adapter *sa = dev_data->dev_private;
 184         int rc;
 185
 186         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 187                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 188
 189         sfc_adapter_lock(sa);
 190         switch (sa->state) {
 191         case SFC_ADAPTER_CONFIGURED:
 192                 sfc_close(sa);
 193                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 194                 /* FALLTHROUGH */
 195         case SFC_ADAPTER_INITIALIZED:
 196                 rc = sfc_configure(sa);
 197                 break;
 198         default:
 199                 sfc_err(sa, "unexpected adapter state %u to configure",
 200                         sa->state);
 201                 rc = EINVAL;
 202                 break;
 203         }
 204         sfc_adapter_unlock(sa);
 205
 206         sfc_log_init(sa, "done %d", rc);
 207         SFC_ASSERT(rc >= 0);
 208         return -rc;
 209 }
 210
 211 static int
 212 sfc_dev_start(struct rte_eth_dev *dev)
 213 {
 214         struct sfc_adapter *sa = dev->data->dev_private;
 215         int rc;
 216
 217         sfc_log_init(sa, "entry");
 218
 219         sfc_adapter_lock(sa);
 220         rc = sfc_start(sa);
 221         sfc_adapter_unlock(sa);
 222
 223         sfc_log_init(sa, "done %d", rc);
 224         SFC_ASSERT(rc >= 0);
 225         return -rc;
 226 }
 227
 228 static int
 229 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 230 {
 231         struct sfc_adapter *sa = dev->data->dev_private;
 232         struct rte_eth_link *dev_link = &dev->data->dev_link;
 233         struct rte_eth_link old_link;
 234         struct rte_eth_link current_link;
 235
 236         sfc_log_init(sa, "entry");
 237
 238 retry:
 239         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 240         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 241
 242         if (sa->state != SFC_ADAPTER_STARTED) {
 243                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 244                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 245                                          *(uint64_t *)&old_link,
 246                                          *(uint64_t *)&current_link))
 247                         goto retry;
 248         } else if (wait_to_complete) {
 249                 efx_link_mode_t link_mode;
 250
 251                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 252                         link_mode = EFX_LINK_UNKNOWN;
 253                 sfc_port_link_mode_to_info(link_mode, &current_link);
 254
 255                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 256                                          *(uint64_t *)&old_link,
 257                                          *(uint64_t *)&current_link))
 258                         goto retry;
 259         } else {
 260                 sfc_ev_mgmt_qpoll(sa);
 261                 *(int64_t *)&current_link =
 262                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 263         }
 264
 265         if (old_link.link_status != current_link.link_status)
 266                 sfc_info(sa, "Link status is %s",
 267                          current_link.link_status ? "UP" : "DOWN");
 268
 269         return old_link.link_status == current_link.link_status ? 0 : -1;
 270 }
 271
 272 static void
 273 sfc_dev_stop(struct rte_eth_dev *dev)
 274 {
 275         struct sfc_adapter *sa = dev->data->dev_private;
 276
 277         sfc_log_init(sa, "entry");
 278
 279         sfc_adapter_lock(sa);
 280         sfc_stop(sa);
 281         sfc_adapter_unlock(sa);
 282
 283         sfc_log_init(sa, "done");
 284 }
 285
 286 static int
 287 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 288 {
 289         struct sfc_adapter *sa = dev->data->dev_private;
 290         int rc;
 291
 292         sfc_log_init(sa, "entry");
 293
 294         sfc_adapter_lock(sa);
 295         rc = sfc_start(sa);
 296         sfc_adapter_unlock(sa);
 297
 298         SFC_ASSERT(rc >= 0);
 299         return -rc;
 300 }
 301
 302 static int
 303 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 304 {
 305         struct sfc_adapter *sa = dev->data->dev_private;
 306
 307         sfc_log_init(sa, "entry");
 308
 309         sfc_adapter_lock(sa);
 310         sfc_stop(sa);
 311         sfc_adapter_unlock(sa);
 312
 313         return 0;
 314 }
 315
 316 static void
 317 sfc_dev_close(struct rte_eth_dev *dev)
 318 {
 319         struct sfc_adapter *sa = dev->data->dev_private;
 320
 321         sfc_log_init(sa, "entry");
 322
 323         sfc_adapter_lock(sa);
 324         switch (sa->state) {
 325         case SFC_ADAPTER_STARTED:
 326                 sfc_stop(sa);
 327                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 328                 /* FALLTHROUGH */
 329         case SFC_ADAPTER_CONFIGURED:
 330                 sfc_close(sa);
 331                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 332                 /* FALLTHROUGH */
 333         case SFC_ADAPTER_INITIALIZED:
 334                 break;
 335         default:
 336                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 337                 break;
 338         }
 339         sfc_adapter_unlock(sa);
 340
 341         sfc_log_init(sa, "done");
 342 }
 343
 344 static void
 345 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 346                    boolean_t enabled)
 347 {
 348         struct sfc_port *port;
 349         boolean_t *toggle;
 350         struct sfc_adapter *sa = dev->data->dev_private;
 351         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 352         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 353
 354         sfc_adapter_lock(sa);
 355
 356         port = &sa->port;
 357         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 358
 359         if (*toggle != enabled) {
 360                 *toggle = enabled;
 361
 362                 if ((sa->state == SFC_ADAPTER_STARTED) &&
 363                     (sfc_set_rx_mode(sa) != 0)) {
 364                         *toggle = !(enabled);
 365                         sfc_warn(sa, "Failed to %s %s mode",
 366                                  ((enabled) ? "enable" : "disable"), desc);
 367                 }
 368         }
 369
 370         sfc_adapter_unlock(sa);
 371 }
 372
 373 static void
 374 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 375 {
 376         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 377 }
 378
 379 static void
 380 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 381 {
 382         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 383 }
 384
 385 static void
 386 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 387 {
 388         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 389 }
 390
 391 static void
 392 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 393 {
 394         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 395 }
 396
 397 static int
 398 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 399                    uint16_t nb_rx_desc, unsigned int socket_id,
 400                    const struct rte_eth_rxconf *rx_conf,
 401                    struct rte_mempool *mb_pool)
 402 {
 403         struct sfc_adapter *sa = dev->data->dev_private;
 404         int rc;
 405
 406         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 407                      rx_queue_id, nb_rx_desc, socket_id);
 408
 409         sfc_adapter_lock(sa);
 410
 411         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 412                           rx_conf, mb_pool);
 413         if (rc != 0)
 414                 goto fail_rx_qinit;
 415
 416         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 417
 418         sfc_adapter_unlock(sa);
 419
 420         return 0;
 421
 422 fail_rx_qinit:
 423         sfc_adapter_unlock(sa);
 424         SFC_ASSERT(rc > 0);
 425         return -rc;
 426 }
 427
 428 static void
 429 sfc_rx_queue_release(void *queue)
 430 {
 431         struct sfc_dp_rxq *dp_rxq = queue;
 432         struct sfc_rxq *rxq;
 433         struct sfc_adapter *sa;
 434         unsigned int sw_index;
 435
 436         if (dp_rxq == NULL)
 437                 return;
 438
 439         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 440         sa = rxq->evq->sa;
 441         sfc_adapter_lock(sa);
 442
 443         sw_index = sfc_rxq_sw_index(rxq);
 444
 445         sfc_log_init(sa, "RxQ=%u", sw_index);
 446
 447         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 448
 449         sfc_rx_qfini(sa, sw_index);
 450
 451         sfc_adapter_unlock(sa);
 452 }
 453
 454 static int
 455 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 456                    uint16_t nb_tx_desc, unsigned int socket_id,
 457                    const struct rte_eth_txconf *tx_conf)
 458 {
 459         struct sfc_adapter *sa = dev->data->dev_private;
 460         int rc;
 461
 462         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 463                      tx_queue_id, nb_tx_desc, socket_id);
 464
 465         sfc_adapter_lock(sa);
 466
 467         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 468         if (rc != 0)
 469                 goto fail_tx_qinit;
 470
 471         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 472
 473         sfc_adapter_unlock(sa);
 474         return 0;
 475
 476 fail_tx_qinit:
 477         sfc_adapter_unlock(sa);
 478         SFC_ASSERT(rc > 0);
 479         return -rc;
 480 }
 481
 482 static void
 483 sfc_tx_queue_release(void *queue)
 484 {
 485         struct sfc_dp_txq *dp_txq = queue;
 486         struct sfc_txq *txq;
 487         unsigned int sw_index;
 488         struct sfc_adapter *sa;
 489
 490         if (dp_txq == NULL)
 491                 return;
 492
 493         txq = sfc_txq_by_dp_txq(dp_txq);
 494         sw_index = sfc_txq_sw_index(txq);
 495
 496         SFC_ASSERT(txq->evq != NULL);
 497         sa = txq->evq->sa;
 498
 499         sfc_log_init(sa, "TxQ = %u", sw_index);
 500
 501         sfc_adapter_lock(sa);
 502
 503         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 504         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 505
 506         sfc_tx_qfini(sa, sw_index);
 507
 508         sfc_adapter_unlock(sa);
 509 }
 510
 511 static void
 512 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 513 {
 514         struct sfc_adapter *sa = dev->data->dev_private;
 515         struct sfc_port *port = &sa->port;
 516         uint64_t *mac_stats;
 517
 518         rte_spinlock_lock(&port->mac_stats_lock);
 519
 520         if (sfc_port_update_mac_stats(sa) != 0)
 521                 goto unlock;
 522
 523         mac_stats = port->mac_stats_buf;
 524
 525         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 526                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 527                 stats->ipackets =
 528                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 529                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 530                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 531                 stats->opackets =
 532                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 533                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 534                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 535                 stats->ibytes =
 536                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 537                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 538                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 539                 stats->obytes =
 540                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 541                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 542                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 543                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 544                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 545                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 546         } else {
 547                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 548                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 549                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 550                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 551                 /*
 552                  * Take into account stats which are whenever supported
 553                  * on EF10. If some stat is not supported by current
 554                  * firmware variant or HW revision, it is guaranteed
 555                  * to be zero in mac_stats.
 556                  */
 557                 stats->imissed =
 558                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 559                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 560                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 561                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 562                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 563                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 564                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 565                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 566                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 567                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 568                 stats->ierrors =
 569                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 570                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 571                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 572                 /* no oerrors counters supported on EF10 */
 573         }
 574
 575 unlock:
 576         rte_spinlock_unlock(&port->mac_stats_lock);
 577 }
 578
 579 static void
 580 sfc_stats_reset(struct rte_eth_dev *dev)
 581 {
 582         struct sfc_adapter *sa = dev->data->dev_private;
 583         struct sfc_port *port = &sa->port;
 584         int rc;
 585
 586         if (sa->state != SFC_ADAPTER_STARTED) {
 587                 /*
 588                  * The operation cannot be done if port is not started; it
 589                  * will be scheduled to be done during the next port start
 590                  */
 591                 port->mac_stats_reset_pending = B_TRUE;
 592                 return;
 593         }
 594
 595         rc = sfc_port_reset_mac_stats(sa);
 596         if (rc != 0)
 597                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 598 }
 599
 600 static int
 601 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 602                unsigned int xstats_count)
 603 {
 604         struct sfc_adapter *sa = dev->data->dev_private;
 605         struct sfc_port *port = &sa->port;
 606         uint64_t *mac_stats;
 607         int rc;
 608         unsigned int i;
 609         int nstats = 0;
 610
 611         rte_spinlock_lock(&port->mac_stats_lock);
 612
 613         rc = sfc_port_update_mac_stats(sa);
 614         if (rc != 0) {
 615                 SFC_ASSERT(rc > 0);
 616                 nstats = -rc;
 617                 goto unlock;
 618         }
 619
 620         mac_stats = port->mac_stats_buf;
 621
 622         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 623                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 624                         if (xstats != NULL && nstats < (int)xstats_count) {
 625                                 xstats[nstats].id = nstats;
 626                                 xstats[nstats].value = mac_stats[i];
 627                         }
 628                         nstats++;
 629                 }
 630         }
 631
 632 unlock:
 633         rte_spinlock_unlock(&port->mac_stats_lock);
 634
 635         return nstats;
 636 }
 637
 638 static int
 639 sfc_xstats_get_names(struct rte_eth_dev *dev,
 640                      struct rte_eth_xstat_name *xstats_names,
 641                      unsigned int xstats_count)
 642 {
 643         struct sfc_adapter *sa = dev->data->dev_private;
 644         struct sfc_port *port = &sa->port;
 645         unsigned int i;
 646         unsigned int nstats = 0;
 647
 648         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 649                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 650                         if (xstats_names != NULL && nstats < xstats_count)
 651                                 strncpy(xstats_names[nstats].name,
 652                                         efx_mac_stat_name(sa->nic, i),
 653                                         sizeof(xstats_names[0].name));
 654                         nstats++;
 655                 }
 656         }
 657
 658         return nstats;
 659 }
 660
 661 static int
 662 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 663 {
 664         struct sfc_adapter *sa = dev->data->dev_private;
 665         unsigned int wanted_fc, link_fc;
 666
 667         memset(fc_conf, 0, sizeof(*fc_conf));
 668
 669         sfc_adapter_lock(sa);
 670
 671         if (sa->state == SFC_ADAPTER_STARTED)
 672                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 673         else
 674                 link_fc = sa->port.flow_ctrl;
 675
 676         switch (link_fc) {
 677         case 0:
 678                 fc_conf->mode = RTE_FC_NONE;
 679                 break;
 680         case EFX_FCNTL_RESPOND:
 681                 fc_conf->mode = RTE_FC_RX_PAUSE;
 682                 break;
 683         case EFX_FCNTL_GENERATE:
 684                 fc_conf->mode = RTE_FC_TX_PAUSE;
 685                 break;
 686         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 687                 fc_conf->mode = RTE_FC_FULL;
 688                 break;
 689         default:
 690                 sfc_err(sa, "%s: unexpected flow control value %#x",
 691                         __func__, link_fc);
 692         }
 693
 694         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 695
 696         sfc_adapter_unlock(sa);
 697
 698         return 0;
 699 }
 700
 701 static int
 702 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 703 {
 704         struct sfc_adapter *sa = dev->data->dev_private;
 705         struct sfc_port *port = &sa->port;
 706         unsigned int fcntl;
 707         int rc;
 708
 709         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 710             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 711             fc_conf->mac_ctrl_frame_fwd != 0) {
 712                 sfc_err(sa, "unsupported flow control settings specified");
 713                 rc = EINVAL;
 714                 goto fail_inval;
 715         }
 716
 717         switch (fc_conf->mode) {
 718         case RTE_FC_NONE:
 719                 fcntl = 0;
 720                 break;
 721         case RTE_FC_RX_PAUSE:
 722                 fcntl = EFX_FCNTL_RESPOND;
 723                 break;
 724         case RTE_FC_TX_PAUSE:
 725                 fcntl = EFX_FCNTL_GENERATE;
 726                 break;
 727         case RTE_FC_FULL:
 728                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 729                 break;
 730         default:
 731                 rc = EINVAL;
 732                 goto fail_inval;
 733         }
 734
 735         sfc_adapter_lock(sa);
 736
 737         if (sa->state == SFC_ADAPTER_STARTED) {
 738                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 739                 if (rc != 0)
 740                         goto fail_mac_fcntl_set;
 741         }
 742
 743         port->flow_ctrl = fcntl;
 744         port->flow_ctrl_autoneg = fc_conf->autoneg;
 745
 746         sfc_adapter_unlock(sa);
 747
 748         return 0;
 749
 750 fail_mac_fcntl_set:
 751         sfc_adapter_unlock(sa);
 752 fail_inval:
 753         SFC_ASSERT(rc > 0);
 754         return -rc;
 755 }
 756
 757 static int
 758 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 759 {
 760         struct sfc_adapter *sa = dev->data->dev_private;
 761         size_t pdu = EFX_MAC_PDU(mtu);
 762         size_t old_pdu;
 763         int rc;
 764
 765         sfc_log_init(sa, "mtu=%u", mtu);
 766
 767         rc = EINVAL;
 768         if (pdu < EFX_MAC_PDU_MIN) {
 769                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 770                         (unsigned int)mtu, (unsigned int)pdu,
 771                         EFX_MAC_PDU_MIN);
 772                 goto fail_inval;
 773         }
 774         if (pdu > EFX_MAC_PDU_MAX) {
 775                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 776                         (unsigned int)mtu, (unsigned int)pdu,
 777                         EFX_MAC_PDU_MAX);
 778                 goto fail_inval;
 779         }
 780
 781         sfc_adapter_lock(sa);
 782
 783         if (pdu != sa->port.pdu) {
 784                 if (sa->state == SFC_ADAPTER_STARTED) {
 785                         sfc_stop(sa);
 786
 787                         old_pdu = sa->port.pdu;
 788                         sa->port.pdu = pdu;
 789                         rc = sfc_start(sa);
 790                         if (rc != 0)
 791                                 goto fail_start;
 792                 } else {
 793                         sa->port.pdu = pdu;
 794                 }
 795         }
 796
 797         /*
 798          * The driver does not use it, but other PMDs update jumbo_frame
 799          * flag and max_rx_pkt_len when MTU is set.
 800          */
 801         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 802         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 803
 804         sfc_adapter_unlock(sa);
 805
 806         sfc_log_init(sa, "done");
 807         return 0;
 808
 809 fail_start:
 810         sa->port.pdu = old_pdu;
 811         if (sfc_start(sa) != 0)
 812                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 813                         "PDU max size - port is stopped",
 814                         (unsigned int)pdu, (unsigned int)old_pdu);
 815         sfc_adapter_unlock(sa);
 816
 817 fail_inval:
 818         sfc_log_init(sa, "failed %d", rc);
 819         SFC_ASSERT(rc > 0);
 820         return -rc;
 821 }
 822 static void
 823 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 824 {
 825         struct sfc_adapter *sa = dev->data->dev_private;
 826         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 827         int rc;
 828
 829         sfc_adapter_lock(sa);
 830
 831         if (sa->state != SFC_ADAPTER_STARTED) {
 832                 sfc_info(sa, "the port is not started");
 833                 sfc_info(sa, "the new MAC address will be set on port start");
 834
 835                 goto unlock;
 836         }
 837
 838         if (encp->enc_allow_set_mac_with_installed_filters) {
 839                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 840                 if (rc != 0) {
 841                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 842                         goto unlock;
 843                 }
 844
 845                 /*
 846                  * Changing the MAC address by means of MCDI request
 847                  * has no effect on received traffic, therefore
 848                  * we also need to update unicast filters
 849                  */
 850                 rc = sfc_set_rx_mode(sa);
 851                 if (rc != 0)
 852                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 853         } else {
 854                 sfc_warn(sa, "cannot set MAC address with filters installed");
 855                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 856                 sfc_warn(sa, "(some traffic may be dropped)");
 857
 858                 /*
 859                  * Since setting MAC address with filters installed is not
 860                  * allowed on the adapter, one needs to simply restart adapter
 861                  * so that the new MAC address will be taken from an outer
 862                  * storage and set flawlessly by means of sfc_start() call
 863                  */
 864                 sfc_stop(sa);
 865                 rc = sfc_start(sa);
 866                 if (rc != 0)
 867                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 868         }
 869
 870 unlock:
 871         sfc_adapter_unlock(sa);
 872 }
 873
 874
 875 static int
 876 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 877                      uint32_t nb_mc_addr)
 878 {
 879         struct sfc_adapter *sa = dev->data->dev_private;
 880         struct sfc_port *port = &sa->port;
 881         uint8_t *mc_addrs = port->mcast_addrs;
 882         int rc;
 883         unsigned int i;
 884
 885         if (mc_addrs == NULL)
 886                 return -ENOBUFS;
 887
 888         if (nb_mc_addr > port->max_mcast_addrs) {
 889                 sfc_err(sa, "too many multicast addresses: %u > %u",
 890                          nb_mc_addr, port->max_mcast_addrs);
 891                 return -EINVAL;
 892         }
 893
 894         for (i = 0; i < nb_mc_addr; ++i) {
 895                 (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 896                                  EFX_MAC_ADDR_LEN);
 897                 mc_addrs += EFX_MAC_ADDR_LEN;
 898         }
 899
 900         port->nb_mcast_addrs = nb_mc_addr;
 901
 902         if (sa->state != SFC_ADAPTER_STARTED)
 903                 return 0;
 904
 905         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
 906                                         port->nb_mcast_addrs);
 907         if (rc != 0)
 908                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 909
 910         SFC_ASSERT(rc > 0);
 911         return -rc;
 912 }
 913
 914 static void
 915 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 916                       struct rte_eth_rxq_info *qinfo)
 917 {
 918         struct sfc_adapter *sa = dev->data->dev_private;
 919         struct sfc_rxq_info *rxq_info;
 920         struct sfc_rxq *rxq;
 921
 922         sfc_adapter_lock(sa);
 923
 924         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 925
 926         rxq_info = &sa->rxq_info[rx_queue_id];
 927         rxq = rxq_info->rxq;
 928         SFC_ASSERT(rxq != NULL);
 929
 930         qinfo->mp = rxq->refill_mb_pool;
 931         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 932         qinfo->conf.rx_drop_en = 1;
 933         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 934         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 935         qinfo->nb_desc = rxq_info->entries;
 936
 937         sfc_adapter_unlock(sa);
 938 }
 939
 940 static void
 941 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 942                       struct rte_eth_txq_info *qinfo)
 943 {
 944         struct sfc_adapter *sa = dev->data->dev_private;
 945         struct sfc_txq_info *txq_info;
 946
 947         sfc_adapter_lock(sa);
 948
 949         SFC_ASSERT(tx_queue_id < sa->txq_count);
 950
 951         txq_info = &sa->txq_info[tx_queue_id];
 952         SFC_ASSERT(txq_info->txq != NULL);
 953
 954         memset(qinfo, 0, sizeof(*qinfo));
 955
 956         qinfo->conf.txq_flags = txq_info->txq->flags;
 957         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 958         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 959         qinfo->nb_desc = txq_info->entries;
 960
 961         sfc_adapter_unlock(sa);
 962 }
 963
 964 static uint32_t
 965 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 966 {
 967         struct sfc_adapter *sa = dev->data->dev_private;
 968
 969         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 970
 971         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 972 }
 973
 974 static int
 975 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 976 {
 977         struct sfc_dp_rxq *dp_rxq = queue;
 978
 979         return sfc_rx_qdesc_done(dp_rxq, offset);
 980 }
 981
 982 static int
 983 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 984 {
 985         struct sfc_adapter *sa = dev->data->dev_private;
 986         int rc;
 987
 988         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 989
 990         sfc_adapter_lock(sa);
 991
 992         rc = EINVAL;
 993         if (sa->state != SFC_ADAPTER_STARTED)
 994                 goto fail_not_started;
 995
 996         rc = sfc_rx_qstart(sa, rx_queue_id);
 997         if (rc != 0)
 998                 goto fail_rx_qstart;
 999
1000         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1001
1002         sfc_adapter_unlock(sa);
1003
1004         return 0;
1005
1006 fail_rx_qstart:
1007 fail_not_started:
1008         sfc_adapter_unlock(sa);
1009         SFC_ASSERT(rc > 0);
1010         return -rc;
1011 }
1012
1013 static int
1014 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1015 {
1016         struct sfc_adapter *sa = dev->data->dev_private;
1017
1018         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1019
1020         sfc_adapter_lock(sa);
1021         sfc_rx_qstop(sa, rx_queue_id);
1022
1023         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1024
1025         sfc_adapter_unlock(sa);
1026
1027         return 0;
1028 }
1029
1030 static int
1031 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1032 {
1033         struct sfc_adapter *sa = dev->data->dev_private;
1034         int rc;
1035
1036         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1037
1038         sfc_adapter_lock(sa);
1039
1040         rc = EINVAL;
1041         if (sa->state != SFC_ADAPTER_STARTED)
1042                 goto fail_not_started;
1043
1044         rc = sfc_tx_qstart(sa, tx_queue_id);
1045         if (rc != 0)
1046                 goto fail_tx_qstart;
1047
1048         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1049
1050         sfc_adapter_unlock(sa);
1051         return 0;
1052
1053 fail_tx_qstart:
1054
1055 fail_not_started:
1056         sfc_adapter_unlock(sa);
1057         SFC_ASSERT(rc > 0);
1058         return -rc;
1059 }
1060
1061 static int
1062 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1063 {
1064         struct sfc_adapter *sa = dev->data->dev_private;
1065
1066         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1067
1068         sfc_adapter_lock(sa);
1069
1070         sfc_tx_qstop(sa, tx_queue_id);
1071
1072         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1073
1074         sfc_adapter_unlock(sa);
1075         return 0;
1076 }
1077
1078 #if EFSYS_OPT_RX_SCALE
1079 static int
1080 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1081                           struct rte_eth_rss_conf *rss_conf)
1082 {
1083         struct sfc_adapter *sa = dev->data->dev_private;
1084
1085         if ((sa->rss_channels == 1) ||
1086             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1087                 return -ENOTSUP;
1088
1089         sfc_adapter_lock(sa);
1090
1091         /*
1092          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1093          * hence, conversion is done here to derive a correct set of ETH_RSS
1094          * flags which corresponds to the active EFX configuration stored
1095          * locally in 'sfc_adapter' and kept up-to-date
1096          */
1097         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1098         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1099         if (rss_conf->rss_key != NULL)
1100                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1101
1102         sfc_adapter_unlock(sa);
1103
1104         return 0;
1105 }
1106
1107 static int
1108 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1109                         struct rte_eth_rss_conf *rss_conf)
1110 {
1111         struct sfc_adapter *sa = dev->data->dev_private;
1112         unsigned int efx_hash_types;
1113         int rc = 0;
1114
1115         if ((sa->rss_channels == 1) ||
1116             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1117                 sfc_err(sa, "RSS is not available");
1118                 return -ENOTSUP;
1119         }
1120
1121         if ((rss_conf->rss_key != NULL) &&
1122             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1123                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1124                         sizeof(sa->rss_key));
1125                 return -EINVAL;
1126         }
1127
1128         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1129                 sfc_err(sa, "unsupported hash functions requested");
1130                 return -EINVAL;
1131         }
1132
1133         sfc_adapter_lock(sa);
1134
1135         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1136
1137         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1138                                    efx_hash_types, B_TRUE);
1139         if (rc != 0)
1140                 goto fail_scale_mode_set;
1141
1142         if (rss_conf->rss_key != NULL) {
1143                 if (sa->state == SFC_ADAPTER_STARTED) {
1144                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1145                                                   sizeof(sa->rss_key));
1146                         if (rc != 0)
1147                                 goto fail_scale_key_set;
1148                 }
1149
1150                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1151         }
1152
1153         sa->rss_hash_types = efx_hash_types;
1154
1155         sfc_adapter_unlock(sa);
1156
1157         return 0;
1158
1159 fail_scale_key_set:
1160         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1161                                   sa->rss_hash_types, B_TRUE) != 0)
1162                 sfc_err(sa, "failed to restore RSS mode");
1163
1164 fail_scale_mode_set:
1165         sfc_adapter_unlock(sa);
1166         return -rc;
1167 }
1168
1169 static int
1170 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1171                        struct rte_eth_rss_reta_entry64 *reta_conf,
1172                        uint16_t reta_size)
1173 {
1174         struct sfc_adapter *sa = dev->data->dev_private;
1175         int entry;
1176
1177         if ((sa->rss_channels == 1) ||
1178             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1179                 return -ENOTSUP;
1180
1181         if (reta_size != EFX_RSS_TBL_SIZE)
1182                 return -EINVAL;
1183
1184         sfc_adapter_lock(sa);
1185
1186         for (entry = 0; entry < reta_size; entry++) {
1187                 int grp = entry / RTE_RETA_GROUP_SIZE;
1188                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1189
1190                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1191                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1192         }
1193
1194         sfc_adapter_unlock(sa);
1195
1196         return 0;
1197 }
1198
1199 static int
1200 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1201                         struct rte_eth_rss_reta_entry64 *reta_conf,
1202                         uint16_t reta_size)
1203 {
1204         struct sfc_adapter *sa = dev->data->dev_private;
1205         unsigned int *rss_tbl_new;
1206         uint16_t entry;
1207         int rc;
1208
1209
1210         if ((sa->rss_channels == 1) ||
1211             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1212                 sfc_err(sa, "RSS is not available");
1213                 return -ENOTSUP;
1214         }
1215
1216         if (reta_size != EFX_RSS_TBL_SIZE) {
1217                 sfc_err(sa, "RETA size is wrong (should be %u)",
1218                         EFX_RSS_TBL_SIZE);
1219                 return -EINVAL;
1220         }
1221
1222         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1223         if (rss_tbl_new == NULL)
1224                 return -ENOMEM;
1225
1226         sfc_adapter_lock(sa);
1227
1228         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1229
1230         for (entry = 0; entry < reta_size; entry++) {
1231                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1232                 struct rte_eth_rss_reta_entry64 *grp;
1233
1234                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1235
1236                 if (grp->mask & (1ull << grp_idx)) {
1237                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1238                                 rc = EINVAL;
1239                                 goto bad_reta_entry;
1240                         }
1241                         rss_tbl_new[entry] = grp->reta[grp_idx];
1242                 }
1243         }
1244
1245         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1246         if (rc == 0)
1247                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1248
1249 bad_reta_entry:
1250         sfc_adapter_unlock(sa);
1251
1252         rte_free(rss_tbl_new);
1253
1254         SFC_ASSERT(rc >= 0);
1255         return -rc;
1256 }
1257 #endif
1258
1259 static int
1260 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1261                     enum rte_filter_op filter_op,
1262                     void *arg)
1263 {
1264         struct sfc_adapter *sa = dev->data->dev_private;
1265         int rc = ENOTSUP;
1266
1267         sfc_log_init(sa, "entry");
1268
1269         switch (filter_type) {
1270         case RTE_ETH_FILTER_NONE:
1271                 sfc_err(sa, "Global filters configuration not supported");
1272                 break;
1273         case RTE_ETH_FILTER_MACVLAN:
1274                 sfc_err(sa, "MACVLAN filters not supported");
1275                 break;
1276         case RTE_ETH_FILTER_ETHERTYPE:
1277                 sfc_err(sa, "EtherType filters not supported");
1278                 break;
1279         case RTE_ETH_FILTER_FLEXIBLE:
1280                 sfc_err(sa, "Flexible filters not supported");
1281                 break;
1282         case RTE_ETH_FILTER_SYN:
1283                 sfc_err(sa, "SYN filters not supported");
1284                 break;
1285         case RTE_ETH_FILTER_NTUPLE:
1286                 sfc_err(sa, "NTUPLE filters not supported");
1287                 break;
1288         case RTE_ETH_FILTER_TUNNEL:
1289                 sfc_err(sa, "Tunnel filters not supported");
1290                 break;
1291         case RTE_ETH_FILTER_FDIR:
1292                 sfc_err(sa, "Flow Director filters not supported");
1293                 break;
1294         case RTE_ETH_FILTER_HASH:
1295                 sfc_err(sa, "Hash filters not supported");
1296                 break;
1297         case RTE_ETH_FILTER_GENERIC:
1298                 if (filter_op != RTE_ETH_FILTER_GET) {
1299                         rc = EINVAL;
1300                 } else {
1301                         *(const void **)arg = &sfc_flow_ops;
1302                         rc = 0;
1303                 }
1304                 break;
1305         default:
1306                 sfc_err(sa, "Unknown filter type %u", filter_type);
1307                 break;
1308         }
1309
1310         sfc_log_init(sa, "exit: %d", -rc);
1311         SFC_ASSERT(rc >= 0);
1312         return -rc;
1313 }
1314
1315 static const struct eth_dev_ops sfc_eth_dev_ops = {
1316         .dev_configure                  = sfc_dev_configure,
1317         .dev_start                      = sfc_dev_start,
1318         .dev_stop                       = sfc_dev_stop,
1319         .dev_set_link_up                = sfc_dev_set_link_up,
1320         .dev_set_link_down              = sfc_dev_set_link_down,
1321         .dev_close                      = sfc_dev_close,
1322         .promiscuous_enable             = sfc_dev_promisc_enable,
1323         .promiscuous_disable            = sfc_dev_promisc_disable,
1324         .allmulticast_enable            = sfc_dev_allmulti_enable,
1325         .allmulticast_disable           = sfc_dev_allmulti_disable,
1326         .link_update                    = sfc_dev_link_update,
1327         .stats_get                      = sfc_stats_get,
1328         .stats_reset                    = sfc_stats_reset,
1329         .xstats_get                     = sfc_xstats_get,
1330         .xstats_reset                   = sfc_stats_reset,
1331         .xstats_get_names               = sfc_xstats_get_names,
1332         .dev_infos_get                  = sfc_dev_infos_get,
1333         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1334         .mtu_set                        = sfc_dev_set_mtu,
1335         .rx_queue_start                 = sfc_rx_queue_start,
1336         .rx_queue_stop                  = sfc_rx_queue_stop,
1337         .tx_queue_start                 = sfc_tx_queue_start,
1338         .tx_queue_stop                  = sfc_tx_queue_stop,
1339         .rx_queue_setup                 = sfc_rx_queue_setup,
1340         .rx_queue_release               = sfc_rx_queue_release,
1341         .rx_queue_count                 = sfc_rx_queue_count,
1342         .rx_descriptor_done             = sfc_rx_descriptor_done,
1343         .tx_queue_setup                 = sfc_tx_queue_setup,
1344         .tx_queue_release               = sfc_tx_queue_release,
1345         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1346         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1347         .mac_addr_set                   = sfc_mac_addr_set,
1348 #if EFSYS_OPT_RX_SCALE
1349         .reta_update                    = sfc_dev_rss_reta_update,
1350         .reta_query                     = sfc_dev_rss_reta_query,
1351         .rss_hash_update                = sfc_dev_rss_hash_update,
1352         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1353 #endif
1354         .filter_ctrl                    = sfc_dev_filter_ctrl,
1355         .set_mc_addr_list               = sfc_set_mc_addr_list,
1356         .rxq_info_get                   = sfc_rx_queue_info_get,
1357         .txq_info_get                   = sfc_tx_queue_info_get,
1358         .fw_version_get                 = sfc_fw_version_get,
1359 };
1360
1361 static int
1362 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1363 {
1364         struct sfc_adapter *sa = dev->data->dev_private;
1365         unsigned int avail_caps = 0;
1366         const char *rx_name = NULL;
1367         const char *tx_name = NULL;
1368         int rc;
1369
1370         if (sa == NULL || sa->state == SFC_ADAPTER_UNINITIALIZED)
1371                 return -E_RTE_SECONDARY;
1372
1373         switch (sa->family) {
1374         case EFX_FAMILY_HUNTINGTON:
1375         case EFX_FAMILY_MEDFORD:
1376                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1377                 break;
1378         default:
1379                 break;
1380         }
1381
1382         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1383                                 sfc_kvarg_string_handler, &rx_name);
1384         if (rc != 0)
1385                 goto fail_kvarg_rx_datapath;
1386
1387         if (rx_name != NULL) {
1388                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1389                 if (sa->dp_rx == NULL) {
1390                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1391                         rc = ENOENT;
1392                         goto fail_dp_rx;
1393                 }
1394                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1395                         sfc_err(sa,
1396                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1397                                 rx_name);
1398                         rc = EINVAL;
1399                         goto fail_dp_rx;
1400                 }
1401         } else {
1402                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1403                 if (sa->dp_rx == NULL) {
1404                         sfc_err(sa, "Rx datapath by caps %#x not found",
1405                                 avail_caps);
1406                         rc = ENOENT;
1407                         goto fail_dp_rx;
1408                 }
1409         }
1410
1411         sfc_info(sa, "use %s Rx datapath", sa->dp_rx->dp.name);
1412
1413         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1414
1415         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1416                                 sfc_kvarg_string_handler, &tx_name);
1417         if (rc != 0)
1418                 goto fail_kvarg_tx_datapath;
1419
1420         if (tx_name != NULL) {
1421                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1422                 if (sa->dp_tx == NULL) {
1423                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1424                         rc = ENOENT;
1425                         goto fail_dp_tx;
1426                 }
1427                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1428                         sfc_err(sa,
1429                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1430                                 tx_name);
1431                         rc = EINVAL;
1432                         goto fail_dp_tx;
1433                 }
1434         } else {
1435                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1436                 if (sa->dp_tx == NULL) {
1437                         sfc_err(sa, "Tx datapath by caps %#x not found",
1438                                 avail_caps);
1439                         rc = ENOENT;
1440                         goto fail_dp_tx;
1441                 }
1442         }
1443
1444         sfc_info(sa, "use %s Tx datapath", sa->dp_tx->dp.name);
1445
1446         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1447
1448         dev->dev_ops = &sfc_eth_dev_ops;
1449
1450         return 0;
1451
1452 fail_dp_tx:
1453 fail_kvarg_tx_datapath:
1454 fail_dp_rx:
1455 fail_kvarg_rx_datapath:
1456         return rc;
1457 }
1458
1459 static void
1460 sfc_register_dp(void)
1461 {
1462         /* Register once */
1463         if (TAILQ_EMPTY(&sfc_dp_head)) {
1464                 /* Prefer EF10 datapath */
1465                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1466                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1467
1468                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1469                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1470         }
1471 }
1472
1473 static int
1474 sfc_eth_dev_init(struct rte_eth_dev *dev)
1475 {
1476         struct sfc_adapter *sa = dev->data->dev_private;
1477         struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
1478         int rc;
1479         const efx_nic_cfg_t *encp;
1480         const struct ether_addr *from;
1481
1482         sfc_register_dp();
1483
1484         /* Required for logging */
1485         sa->eth_dev = dev;
1486
1487         /* Copy PCI device info to the dev->data */
1488         rte_eth_copy_pci_info(dev, pci_dev);
1489
1490         rc = sfc_kvargs_parse(sa);
1491         if (rc != 0)
1492                 goto fail_kvargs_parse;
1493
1494         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1495                                 sfc_kvarg_bool_handler, &sa->debug_init);
1496         if (rc != 0)
1497                 goto fail_kvarg_debug_init;
1498
1499         sfc_log_init(sa, "entry");
1500
1501         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1502         if (dev->data->mac_addrs == NULL) {
1503                 rc = ENOMEM;
1504                 goto fail_mac_addrs;
1505         }
1506
1507         sfc_adapter_lock_init(sa);
1508         sfc_adapter_lock(sa);
1509
1510         sfc_log_init(sa, "attaching");
1511         rc = sfc_attach(sa);
1512         if (rc != 0)
1513                 goto fail_attach;
1514
1515         encp = efx_nic_cfg_get(sa->nic);
1516
1517         /*
1518          * The arguments are really reverse order in comparison to
1519          * Linux kernel. Copy from NIC config to Ethernet device data.
1520          */
1521         from = (const struct ether_addr *)(encp->enc_mac_addr);
1522         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1523
1524         sfc_adapter_unlock(sa);
1525
1526         sfc_eth_dev_set_ops(dev);
1527
1528         sfc_log_init(sa, "done");
1529         return 0;
1530
1531 fail_attach:
1532         sfc_adapter_unlock(sa);
1533         sfc_adapter_lock_fini(sa);
1534         rte_free(dev->data->mac_addrs);
1535         dev->data->mac_addrs = NULL;
1536
1537 fail_mac_addrs:
1538 fail_kvarg_debug_init:
1539         sfc_kvargs_cleanup(sa);
1540
1541 fail_kvargs_parse:
1542         sfc_log_init(sa, "failed %d", rc);
1543         SFC_ASSERT(rc > 0);
1544         return -rc;
1545 }
1546
1547 static int
1548 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1549 {
1550         struct sfc_adapter *sa = dev->data->dev_private;
1551
1552         sfc_log_init(sa, "entry");
1553
1554         sfc_adapter_lock(sa);
1555
1556         sfc_detach(sa);
1557
1558         rte_free(dev->data->mac_addrs);
1559         dev->data->mac_addrs = NULL;
1560
1561         dev->dev_ops = NULL;
1562         dev->rx_pkt_burst = NULL;
1563         dev->tx_pkt_burst = NULL;
1564
1565         sfc_kvargs_cleanup(sa);
1566
1567         sfc_adapter_unlock(sa);
1568         sfc_adapter_lock_fini(sa);
1569
1570         sfc_log_init(sa, "done");
1571
1572         /* Required for logging, so cleanup last */
1573         sa->eth_dev = NULL;
1574         return 0;
1575 }
1576
1577 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1578         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1579         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1580         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1581         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1582         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1583         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1584         { .vendor_id = 0 /* sentinel */ }
1585 };
1586
1587 static struct eth_driver sfc_efx_pmd = {
1588         .pci_drv = {
1589                 .id_table = pci_id_sfc_efx_map,
1590                 .drv_flags =
1591                         RTE_PCI_DRV_INTR_LSC |
1592                         RTE_PCI_DRV_NEED_MAPPING,
1593                 .probe = rte_eth_dev_pci_probe,
1594                 .remove = rte_eth_dev_pci_remove,
1595         },
1596         .eth_dev_init = sfc_eth_dev_init,
1597         .eth_dev_uninit = sfc_eth_dev_uninit,
1598         .dev_private_size = sizeof(struct sfc_adapter),
1599 };
1600
1601 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
1602 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1603 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio");
1604 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1605         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
1606         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
1607         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1608         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1609         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1610         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);