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
  36 #include "efx.h"
  37
  38 #include "sfc.h"
  39 #include "sfc_debug.h"
  40 #include "sfc_log.h"
  41 #include "sfc_kvargs.h"
  42 #include "sfc_ev.h"
  43 #include "sfc_rx.h"
  44 #include "sfc_tx.h"
  45 #include "sfc_flow.h"
  46
  47 static int
  48 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  49 {
  50         struct sfc_adapter *sa = dev->data->dev_private;
  51         efx_nic_fw_info_t enfi;
  52         int ret;
  53         int rc;
  54
  55         /*
  56          * Return value of the callback is likely supposed to be
  57          * equal to or greater than 0, nevertheless, if an error
  58          * occurs, it will be desirable to pass it to the caller
  59          */
  60         if ((fw_version == NULL) || (fw_size == 0))
  61                 return -EINVAL;
  62
  63         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  64         if (rc != 0)
  65                 return -rc;
  66
  67         ret = snprintf(fw_version, fw_size,
  68                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  69                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  70                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  71         if (ret < 0)
  72                 return ret;
  73
  74         if (enfi.enfi_dpcpu_fw_ids_valid) {
  75                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  76                 int ret_extra;
  77
  78                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  79                                      fw_size - dpcpu_fw_ids_offset,
  80                                      " rx%" PRIx16 " tx%" PRIx16,
  81                                      enfi.enfi_rx_dpcpu_fw_id,
  82                                      enfi.enfi_tx_dpcpu_fw_id);
  83                 if (ret_extra < 0)
  84                         return ret_extra;
  85
  86                 ret += ret_extra;
  87         }
  88
  89         if (fw_size < (size_t)(++ret))
  90                 return ret;
  91         else
  92                 return 0;
  93 }
  94
  95 static void
  96 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  97 {
  98         struct sfc_adapter *sa = dev->data->dev_private;
  99         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 100
 101         sfc_log_init(sa, "entry");
 102
 103         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
 104         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 105
 106         /* Autonegotiation may be disabled */
 107         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 108         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 109                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 110         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 111                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 112         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 113                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 114
 115         dev_info->max_rx_queues = sa->rxq_max;
 116         dev_info->max_tx_queues = sa->txq_max;
 117
 118         /* By default packets are dropped if no descriptors are available */
 119         dev_info->default_rxconf.rx_drop_en = 1;
 120
 121         dev_info->rx_offload_capa =
 122                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 123                 DEV_RX_OFFLOAD_UDP_CKSUM |
 124                 DEV_RX_OFFLOAD_TCP_CKSUM;
 125
 126         dev_info->tx_offload_capa =
 127                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 128                 DEV_TX_OFFLOAD_UDP_CKSUM |
 129                 DEV_TX_OFFLOAD_TCP_CKSUM;
 130
 131         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 132         if (!encp->enc_hw_tx_insert_vlan_enabled)
 133                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 134         else
 135                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 136
 137 #if EFSYS_OPT_RX_SCALE
 138         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 139                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 140                 dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
 141                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 142         }
 143 #endif
 144
 145         if (sa->tso)
 146                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 147
 148         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 149         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 150         /* The RXQ hardware requires that the descriptor count is a power
 151          * of 2, but rx_desc_lim cannot properly describe that constraint.
 152          */
 153         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 154
 155         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 156         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 157         /*
 158          * The TXQ hardware requires that the descriptor count is a power
 159          * of 2, but tx_desc_lim cannot properly describe that constraint
 160          */
 161         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 162 }
 163
 164 static const uint32_t *
 165 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 166 {
 167         static const uint32_t ptypes[] = {
 168                 RTE_PTYPE_L2_ETHER,
 169                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 170                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 171                 RTE_PTYPE_L4_TCP,
 172                 RTE_PTYPE_L4_UDP,
 173                 RTE_PTYPE_UNKNOWN
 174         };
 175
 176         if (dev->rx_pkt_burst == sfc_recv_pkts)
 177                 return ptypes;
 178
 179         return NULL;
 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                 sfc_close(sa);
 196                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 197                 /* FALLTHROUGH */
 198         case SFC_ADAPTER_INITIALIZED:
 199                 rc = sfc_configure(sa);
 200                 break;
 201         default:
 202                 sfc_err(sa, "unexpected adapter state %u to configure",
 203                         sa->state);
 204                 rc = EINVAL;
 205                 break;
 206         }
 207         sfc_adapter_unlock(sa);
 208
 209         sfc_log_init(sa, "done %d", rc);
 210         SFC_ASSERT(rc >= 0);
 211         return -rc;
 212 }
 213
 214 static int
 215 sfc_dev_start(struct rte_eth_dev *dev)
 216 {
 217         struct sfc_adapter *sa = dev->data->dev_private;
 218         int rc;
 219
 220         sfc_log_init(sa, "entry");
 221
 222         sfc_adapter_lock(sa);
 223         rc = sfc_start(sa);
 224         sfc_adapter_unlock(sa);
 225
 226         sfc_log_init(sa, "done %d", rc);
 227         SFC_ASSERT(rc >= 0);
 228         return -rc;
 229 }
 230
 231 static int
 232 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 233 {
 234         struct sfc_adapter *sa = dev->data->dev_private;
 235         struct rte_eth_link *dev_link = &dev->data->dev_link;
 236         struct rte_eth_link old_link;
 237         struct rte_eth_link current_link;
 238
 239         sfc_log_init(sa, "entry");
 240
 241 retry:
 242         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 243         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 244
 245         if (sa->state != SFC_ADAPTER_STARTED) {
 246                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 247                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 248                                          *(uint64_t *)&old_link,
 249                                          *(uint64_t *)&current_link))
 250                         goto retry;
 251         } else if (wait_to_complete) {
 252                 efx_link_mode_t link_mode;
 253
 254                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 255                         link_mode = EFX_LINK_UNKNOWN;
 256                 sfc_port_link_mode_to_info(link_mode, &current_link);
 257
 258                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 259                                          *(uint64_t *)&old_link,
 260                                          *(uint64_t *)&current_link))
 261                         goto retry;
 262         } else {
 263                 sfc_ev_mgmt_qpoll(sa);
 264                 *(int64_t *)&current_link =
 265                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 266         }
 267
 268         if (old_link.link_status != current_link.link_status)
 269                 sfc_info(sa, "Link status is %s",
 270                          current_link.link_status ? "UP" : "DOWN");
 271
 272         return old_link.link_status == current_link.link_status ? 0 : -1;
 273 }
 274
 275 static void
 276 sfc_dev_stop(struct rte_eth_dev *dev)
 277 {
 278         struct sfc_adapter *sa = dev->data->dev_private;
 279
 280         sfc_log_init(sa, "entry");
 281
 282         sfc_adapter_lock(sa);
 283         sfc_stop(sa);
 284         sfc_adapter_unlock(sa);
 285
 286         sfc_log_init(sa, "done");
 287 }
 288
 289 static int
 290 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 291 {
 292         struct sfc_adapter *sa = dev->data->dev_private;
 293         int rc;
 294
 295         sfc_log_init(sa, "entry");
 296
 297         sfc_adapter_lock(sa);
 298         rc = sfc_start(sa);
 299         sfc_adapter_unlock(sa);
 300
 301         SFC_ASSERT(rc >= 0);
 302         return -rc;
 303 }
 304
 305 static int
 306 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 307 {
 308         struct sfc_adapter *sa = dev->data->dev_private;
 309
 310         sfc_log_init(sa, "entry");
 311
 312         sfc_adapter_lock(sa);
 313         sfc_stop(sa);
 314         sfc_adapter_unlock(sa);
 315
 316         return 0;
 317 }
 318
 319 static void
 320 sfc_dev_close(struct rte_eth_dev *dev)
 321 {
 322         struct sfc_adapter *sa = dev->data->dev_private;
 323
 324         sfc_log_init(sa, "entry");
 325
 326         sfc_adapter_lock(sa);
 327         switch (sa->state) {
 328         case SFC_ADAPTER_STARTED:
 329                 sfc_stop(sa);
 330                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 331                 /* FALLTHROUGH */
 332         case SFC_ADAPTER_CONFIGURED:
 333                 sfc_close(sa);
 334                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 335                 /* FALLTHROUGH */
 336         case SFC_ADAPTER_INITIALIZED:
 337                 break;
 338         default:
 339                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 340                 break;
 341         }
 342         sfc_adapter_unlock(sa);
 343
 344         sfc_log_init(sa, "done");
 345 }
 346
 347 static void
 348 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 349                    boolean_t enabled)
 350 {
 351         struct sfc_port *port;
 352         boolean_t *toggle;
 353         struct sfc_adapter *sa = dev->data->dev_private;
 354         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 355         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 356
 357         sfc_adapter_lock(sa);
 358
 359         port = &sa->port;
 360         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 361
 362         if (*toggle != enabled) {
 363                 *toggle = enabled;
 364
 365                 if ((sa->state == SFC_ADAPTER_STARTED) &&
 366                     (sfc_set_rx_mode(sa) != 0)) {
 367                         *toggle = !(enabled);
 368                         sfc_warn(sa, "Failed to %s %s mode",
 369                                  ((enabled) ? "enable" : "disable"), desc);
 370                 }
 371         }
 372
 373         sfc_adapter_unlock(sa);
 374 }
 375
 376 static void
 377 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 378 {
 379         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 380 }
 381
 382 static void
 383 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 384 {
 385         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 386 }
 387
 388 static void
 389 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 390 {
 391         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 392 }
 393
 394 static void
 395 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 396 {
 397         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 398 }
 399
 400 static int
 401 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 402                    uint16_t nb_rx_desc, unsigned int socket_id,
 403                    const struct rte_eth_rxconf *rx_conf,
 404                    struct rte_mempool *mb_pool)
 405 {
 406         struct sfc_adapter *sa = dev->data->dev_private;
 407         int rc;
 408
 409         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 410                      rx_queue_id, nb_rx_desc, socket_id);
 411
 412         sfc_adapter_lock(sa);
 413
 414         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 415                           rx_conf, mb_pool);
 416         if (rc != 0)
 417                 goto fail_rx_qinit;
 418
 419         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq;
 420
 421         sfc_adapter_unlock(sa);
 422
 423         return 0;
 424
 425 fail_rx_qinit:
 426         sfc_adapter_unlock(sa);
 427         SFC_ASSERT(rc > 0);
 428         return -rc;
 429 }
 430
 431 static void
 432 sfc_rx_queue_release(void *queue)
 433 {
 434         struct sfc_rxq *rxq = queue;
 435         struct sfc_adapter *sa;
 436         unsigned int sw_index;
 437
 438         if (rxq == NULL)
 439                 return;
 440
 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;
 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_txq *txq = queue;
 487         unsigned int sw_index;
 488         struct sfc_adapter *sa;
 489
 490         if (txq == NULL)
 491                 return;
 492
 493         sw_index = sfc_txq_sw_index(txq);
 494
 495         SFC_ASSERT(txq->evq != NULL);
 496         sa = txq->evq->sa;
 497
 498         sfc_log_init(sa, "TxQ = %u", sw_index);
 499
 500         sfc_adapter_lock(sa);
 501
 502         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 503         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 504
 505         sfc_tx_qfini(sa, sw_index);
 506
 507         sfc_adapter_unlock(sa);
 508 }
 509
 510 static void
 511 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 512 {
 513         struct sfc_adapter *sa = dev->data->dev_private;
 514         struct sfc_port *port = &sa->port;
 515         uint64_t *mac_stats;
 516
 517         rte_spinlock_lock(&port->mac_stats_lock);
 518
 519         if (sfc_port_update_mac_stats(sa) != 0)
 520                 goto unlock;
 521
 522         mac_stats = port->mac_stats_buf;
 523
 524         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 525                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 526                 stats->ipackets =
 527                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 528                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 529                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 530                 stats->opackets =
 531                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 532                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 533                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 534                 stats->ibytes =
 535                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 536                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 537                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 538                 stats->obytes =
 539                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 540                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 541                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 542                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 543                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 544                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 545         } else {
 546                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 547                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 548                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 549                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 550                 /*
 551                  * Take into account stats which are whenever supported
 552                  * on EF10. If some stat is not supported by current
 553                  * firmware variant or HW revision, it is guaranteed
 554                  * to be zero in mac_stats.
 555                  */
 556                 stats->imissed =
 557                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 558                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 559                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 560                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 561                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 562                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 563                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 564                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 565                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 566                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 567                 stats->ierrors =
 568                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 569                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 570                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 571                 /* no oerrors counters supported on EF10 */
 572         }
 573
 574 unlock:
 575         rte_spinlock_unlock(&port->mac_stats_lock);
 576 }
 577
 578 static void
 579 sfc_stats_reset(struct rte_eth_dev *dev)
 580 {
 581         struct sfc_adapter *sa = dev->data->dev_private;
 582         struct sfc_port *port = &sa->port;
 583         int rc;
 584
 585         if (sa->state != SFC_ADAPTER_STARTED) {
 586                 /*
 587                  * The operation cannot be done if port is not started; it
 588                  * will be scheduled to be done during the next port start
 589                  */
 590                 port->mac_stats_reset_pending = B_TRUE;
 591                 return;
 592         }
 593
 594         rc = sfc_port_reset_mac_stats(sa);
 595         if (rc != 0)
 596                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 597 }
 598
 599 static int
 600 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 601                unsigned int xstats_count)
 602 {
 603         struct sfc_adapter *sa = dev->data->dev_private;
 604         struct sfc_port *port = &sa->port;
 605         uint64_t *mac_stats;
 606         int rc;
 607         unsigned int i;
 608         int nstats = 0;
 609
 610         rte_spinlock_lock(&port->mac_stats_lock);
 611
 612         rc = sfc_port_update_mac_stats(sa);
 613         if (rc != 0) {
 614                 SFC_ASSERT(rc > 0);
 615                 nstats = -rc;
 616                 goto unlock;
 617         }
 618
 619         mac_stats = port->mac_stats_buf;
 620
 621         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 622                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 623                         if (xstats != NULL && nstats < (int)xstats_count) {
 624                                 xstats[nstats].id = nstats;
 625                                 xstats[nstats].value = mac_stats[i];
 626                         }
 627                         nstats++;
 628                 }
 629         }
 630
 631 unlock:
 632         rte_spinlock_unlock(&port->mac_stats_lock);
 633
 634         return nstats;
 635 }
 636
 637 static int
 638 sfc_xstats_get_names(struct rte_eth_dev *dev,
 639                      struct rte_eth_xstat_name *xstats_names,
 640                      unsigned int xstats_count)
 641 {
 642         struct sfc_adapter *sa = dev->data->dev_private;
 643         struct sfc_port *port = &sa->port;
 644         unsigned int i;
 645         unsigned int nstats = 0;
 646
 647         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 648                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 649                         if (xstats_names != NULL && nstats < xstats_count)
 650                                 strncpy(xstats_names[nstats].name,
 651                                         efx_mac_stat_name(sa->nic, i),
 652                                         sizeof(xstats_names[0].name));
 653                         nstats++;
 654                 }
 655         }
 656
 657         return nstats;
 658 }
 659
 660 static int
 661 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 662 {
 663         struct sfc_adapter *sa = dev->data->dev_private;
 664         unsigned int wanted_fc, link_fc;
 665
 666         memset(fc_conf, 0, sizeof(*fc_conf));
 667
 668         sfc_adapter_lock(sa);
 669
 670         if (sa->state == SFC_ADAPTER_STARTED)
 671                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 672         else
 673                 link_fc = sa->port.flow_ctrl;
 674
 675         switch (link_fc) {
 676         case 0:
 677                 fc_conf->mode = RTE_FC_NONE;
 678                 break;
 679         case EFX_FCNTL_RESPOND:
 680                 fc_conf->mode = RTE_FC_RX_PAUSE;
 681                 break;
 682         case EFX_FCNTL_GENERATE:
 683                 fc_conf->mode = RTE_FC_TX_PAUSE;
 684                 break;
 685         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 686                 fc_conf->mode = RTE_FC_FULL;
 687                 break;
 688         default:
 689                 sfc_err(sa, "%s: unexpected flow control value %#x",
 690                         __func__, link_fc);
 691         }
 692
 693         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 694
 695         sfc_adapter_unlock(sa);
 696
 697         return 0;
 698 }
 699
 700 static int
 701 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 702 {
 703         struct sfc_adapter *sa = dev->data->dev_private;
 704         struct sfc_port *port = &sa->port;
 705         unsigned int fcntl;
 706         int rc;
 707
 708         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 709             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 710             fc_conf->mac_ctrl_frame_fwd != 0) {
 711                 sfc_err(sa, "unsupported flow control settings specified");
 712                 rc = EINVAL;
 713                 goto fail_inval;
 714         }
 715
 716         switch (fc_conf->mode) {
 717         case RTE_FC_NONE:
 718                 fcntl = 0;
 719                 break;
 720         case RTE_FC_RX_PAUSE:
 721                 fcntl = EFX_FCNTL_RESPOND;
 722                 break;
 723         case RTE_FC_TX_PAUSE:
 724                 fcntl = EFX_FCNTL_GENERATE;
 725                 break;
 726         case RTE_FC_FULL:
 727                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 728                 break;
 729         default:
 730                 rc = EINVAL;
 731                 goto fail_inval;
 732         }
 733
 734         sfc_adapter_lock(sa);
 735
 736         if (sa->state == SFC_ADAPTER_STARTED) {
 737                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 738                 if (rc != 0)
 739                         goto fail_mac_fcntl_set;
 740         }
 741
 742         port->flow_ctrl = fcntl;
 743         port->flow_ctrl_autoneg = fc_conf->autoneg;
 744
 745         sfc_adapter_unlock(sa);
 746
 747         return 0;
 748
 749 fail_mac_fcntl_set:
 750         sfc_adapter_unlock(sa);
 751 fail_inval:
 752         SFC_ASSERT(rc > 0);
 753         return -rc;
 754 }
 755
 756 static int
 757 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 758 {
 759         struct sfc_adapter *sa = dev->data->dev_private;
 760         size_t pdu = EFX_MAC_PDU(mtu);
 761         size_t old_pdu;
 762         int rc;
 763
 764         sfc_log_init(sa, "mtu=%u", mtu);
 765
 766         rc = EINVAL;
 767         if (pdu < EFX_MAC_PDU_MIN) {
 768                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 769                         (unsigned int)mtu, (unsigned int)pdu,
 770                         EFX_MAC_PDU_MIN);
 771                 goto fail_inval;
 772         }
 773         if (pdu > EFX_MAC_PDU_MAX) {
 774                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 775                         (unsigned int)mtu, (unsigned int)pdu,
 776                         EFX_MAC_PDU_MAX);
 777                 goto fail_inval;
 778         }
 779
 780         sfc_adapter_lock(sa);
 781
 782         if (pdu != sa->port.pdu) {
 783                 if (sa->state == SFC_ADAPTER_STARTED) {
 784                         sfc_stop(sa);
 785
 786                         old_pdu = sa->port.pdu;
 787                         sa->port.pdu = pdu;
 788                         rc = sfc_start(sa);
 789                         if (rc != 0)
 790                                 goto fail_start;
 791                 } else {
 792                         sa->port.pdu = pdu;
 793                 }
 794         }
 795
 796         /*
 797          * The driver does not use it, but other PMDs update jumbo_frame
 798          * flag and max_rx_pkt_len when MTU is set.
 799          */
 800         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 801         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 802
 803         sfc_adapter_unlock(sa);
 804
 805         sfc_log_init(sa, "done");
 806         return 0;
 807
 808 fail_start:
 809         sa->port.pdu = old_pdu;
 810         if (sfc_start(sa) != 0)
 811                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 812                         "PDU max size - port is stopped",
 813                         (unsigned int)pdu, (unsigned int)old_pdu);
 814         sfc_adapter_unlock(sa);
 815
 816 fail_inval:
 817         sfc_log_init(sa, "failed %d", rc);
 818         SFC_ASSERT(rc > 0);
 819         return -rc;
 820 }
 821 static void
 822 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 823 {
 824         struct sfc_adapter *sa = dev->data->dev_private;
 825         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 826         int rc;
 827
 828         sfc_adapter_lock(sa);
 829
 830         if (sa->state != SFC_ADAPTER_STARTED) {
 831                 sfc_info(sa, "the port is not started");
 832                 sfc_info(sa, "the new MAC address will be set on port start");
 833
 834                 goto unlock;
 835         }
 836
 837         if (encp->enc_allow_set_mac_with_installed_filters) {
 838                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 839                 if (rc != 0) {
 840                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 841                         goto unlock;
 842                 }
 843
 844                 /*
 845                  * Changing the MAC address by means of MCDI request
 846                  * has no effect on received traffic, therefore
 847                  * we also need to update unicast filters
 848                  */
 849                 rc = sfc_set_rx_mode(sa);
 850                 if (rc != 0)
 851                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 852         } else {
 853                 sfc_warn(sa, "cannot set MAC address with filters installed");
 854                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 855                 sfc_warn(sa, "(some traffic may be dropped)");
 856
 857                 /*
 858                  * Since setting MAC address with filters installed is not
 859                  * allowed on the adapter, one needs to simply restart adapter
 860                  * so that the new MAC address will be taken from an outer
 861                  * storage and set flawlessly by means of sfc_start() call
 862                  */
 863                 sfc_stop(sa);
 864                 rc = sfc_start(sa);
 865                 if (rc != 0)
 866                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 867         }
 868
 869 unlock:
 870         sfc_adapter_unlock(sa);
 871 }
 872
 873
 874 static int
 875 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 876                      uint32_t nb_mc_addr)
 877 {
 878         struct sfc_adapter *sa = dev->data->dev_private;
 879         struct sfc_port *port = &sa->port;
 880         uint8_t *mc_addrs = port->mcast_addrs;
 881         int rc;
 882         unsigned int i;
 883
 884         if (mc_addrs == NULL)
 885                 return -ENOBUFS;
 886
 887         if (nb_mc_addr > port->max_mcast_addrs) {
 888                 sfc_err(sa, "too many multicast addresses: %u > %u",
 889                          nb_mc_addr, port->max_mcast_addrs);
 890                 return -EINVAL;
 891         }
 892
 893         for (i = 0; i < nb_mc_addr; ++i) {
 894                 (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 895                                  EFX_MAC_ADDR_LEN);
 896                 mc_addrs += EFX_MAC_ADDR_LEN;
 897         }
 898
 899         port->nb_mcast_addrs = nb_mc_addr;
 900
 901         if (sa->state != SFC_ADAPTER_STARTED)
 902                 return 0;
 903
 904         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
 905                                         port->nb_mcast_addrs);
 906         if (rc != 0)
 907                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 908
 909         SFC_ASSERT(rc > 0);
 910         return -rc;
 911 }
 912
 913 static void
 914 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 915                       struct rte_eth_rxq_info *qinfo)
 916 {
 917         struct sfc_adapter *sa = dev->data->dev_private;
 918         struct sfc_rxq_info *rxq_info;
 919         struct sfc_rxq *rxq;
 920
 921         sfc_adapter_lock(sa);
 922
 923         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 924
 925         rxq_info = &sa->rxq_info[rx_queue_id];
 926         rxq = rxq_info->rxq;
 927         SFC_ASSERT(rxq != NULL);
 928
 929         qinfo->mp = rxq->refill_mb_pool;
 930         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 931         qinfo->conf.rx_drop_en = 1;
 932         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 933         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 934         qinfo->nb_desc = rxq_info->entries;
 935
 936         sfc_adapter_unlock(sa);
 937 }
 938
 939 static void
 940 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 941                       struct rte_eth_txq_info *qinfo)
 942 {
 943         struct sfc_adapter *sa = dev->data->dev_private;
 944         struct sfc_txq_info *txq_info;
 945
 946         sfc_adapter_lock(sa);
 947
 948         SFC_ASSERT(tx_queue_id < sa->txq_count);
 949
 950         txq_info = &sa->txq_info[tx_queue_id];
 951         SFC_ASSERT(txq_info->txq != NULL);
 952
 953         memset(qinfo, 0, sizeof(*qinfo));
 954
 955         qinfo->conf.txq_flags = txq_info->txq->flags;
 956         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 957         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 958         qinfo->nb_desc = txq_info->entries;
 959
 960         sfc_adapter_unlock(sa);
 961 }
 962
 963 static uint32_t
 964 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 965 {
 966         struct sfc_adapter *sa = dev->data->dev_private;
 967
 968         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 969
 970         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 971 }
 972
 973 static int
 974 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 975 {
 976         struct sfc_rxq *rxq = queue;
 977
 978         return sfc_rx_qdesc_done(rxq, offset);
 979 }
 980
 981 static int
 982 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 983 {
 984         struct sfc_adapter *sa = dev->data->dev_private;
 985         int rc;
 986
 987         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 988
 989         sfc_adapter_lock(sa);
 990
 991         rc = EINVAL;
 992         if (sa->state != SFC_ADAPTER_STARTED)
 993                 goto fail_not_started;
 994
 995         rc = sfc_rx_qstart(sa, rx_queue_id);
 996         if (rc != 0)
 997                 goto fail_rx_qstart;
 998
 999         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1000
1001         sfc_adapter_unlock(sa);
1002
1003         return 0;
1004
1005 fail_rx_qstart:
1006 fail_not_started:
1007         sfc_adapter_unlock(sa);
1008         SFC_ASSERT(rc > 0);
1009         return -rc;
1010 }
1011
1012 static int
1013 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1014 {
1015         struct sfc_adapter *sa = dev->data->dev_private;
1016
1017         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1018
1019         sfc_adapter_lock(sa);
1020         sfc_rx_qstop(sa, rx_queue_id);
1021
1022         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1023
1024         sfc_adapter_unlock(sa);
1025
1026         return 0;
1027 }
1028
1029 static int
1030 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1031 {
1032         struct sfc_adapter *sa = dev->data->dev_private;
1033         int rc;
1034
1035         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1036
1037         sfc_adapter_lock(sa);
1038
1039         rc = EINVAL;
1040         if (sa->state != SFC_ADAPTER_STARTED)
1041                 goto fail_not_started;
1042
1043         rc = sfc_tx_qstart(sa, tx_queue_id);
1044         if (rc != 0)
1045                 goto fail_tx_qstart;
1046
1047         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1048
1049         sfc_adapter_unlock(sa);
1050         return 0;
1051
1052 fail_tx_qstart:
1053
1054 fail_not_started:
1055         sfc_adapter_unlock(sa);
1056         SFC_ASSERT(rc > 0);
1057         return -rc;
1058 }
1059
1060 static int
1061 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1062 {
1063         struct sfc_adapter *sa = dev->data->dev_private;
1064
1065         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1066
1067         sfc_adapter_lock(sa);
1068
1069         sfc_tx_qstop(sa, tx_queue_id);
1070
1071         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1072
1073         sfc_adapter_unlock(sa);
1074         return 0;
1075 }
1076
1077 #if EFSYS_OPT_RX_SCALE
1078 static int
1079 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1080                           struct rte_eth_rss_conf *rss_conf)
1081 {
1082         struct sfc_adapter *sa = dev->data->dev_private;
1083
1084         if ((sa->rss_channels == 1) ||
1085             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1086                 return -ENOTSUP;
1087
1088         sfc_adapter_lock(sa);
1089
1090         /*
1091          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1092          * hence, conversion is done here to derive a correct set of ETH_RSS
1093          * flags which corresponds to the active EFX configuration stored
1094          * locally in 'sfc_adapter' and kept up-to-date
1095          */
1096         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1097         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1098         if (rss_conf->rss_key != NULL)
1099                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1100
1101         sfc_adapter_unlock(sa);
1102
1103         return 0;
1104 }
1105
1106 static int
1107 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1108                         struct rte_eth_rss_conf *rss_conf)
1109 {
1110         struct sfc_adapter *sa = dev->data->dev_private;
1111         unsigned int efx_hash_types;
1112         int rc = 0;
1113
1114         if ((sa->rss_channels == 1) ||
1115             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1116                 sfc_err(sa, "RSS is not available");
1117                 return -ENOTSUP;
1118         }
1119
1120         if ((rss_conf->rss_key != NULL) &&
1121             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1122                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1123                         sizeof(sa->rss_key));
1124                 return -EINVAL;
1125         }
1126
1127         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1128                 sfc_err(sa, "unsupported hash functions requested");
1129                 return -EINVAL;
1130         }
1131
1132         sfc_adapter_lock(sa);
1133
1134         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1135
1136         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1137                                    efx_hash_types, B_TRUE);
1138         if (rc != 0)
1139                 goto fail_scale_mode_set;
1140
1141         if (rss_conf->rss_key != NULL) {
1142                 if (sa->state == SFC_ADAPTER_STARTED) {
1143                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1144                                                   sizeof(sa->rss_key));
1145                         if (rc != 0)
1146                                 goto fail_scale_key_set;
1147                 }
1148
1149                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1150         }
1151
1152         sa->rss_hash_types = efx_hash_types;
1153
1154         sfc_adapter_unlock(sa);
1155
1156         return 0;
1157
1158 fail_scale_key_set:
1159         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1160                                   sa->rss_hash_types, B_TRUE) != 0)
1161                 sfc_err(sa, "failed to restore RSS mode");
1162
1163 fail_scale_mode_set:
1164         sfc_adapter_unlock(sa);
1165         return -rc;
1166 }
1167
1168 static int
1169 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1170                        struct rte_eth_rss_reta_entry64 *reta_conf,
1171                        uint16_t reta_size)
1172 {
1173         struct sfc_adapter *sa = dev->data->dev_private;
1174         int entry;
1175
1176         if ((sa->rss_channels == 1) ||
1177             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE))
1178                 return -ENOTSUP;
1179
1180         if (reta_size != EFX_RSS_TBL_SIZE)
1181                 return -EINVAL;
1182
1183         sfc_adapter_lock(sa);
1184
1185         for (entry = 0; entry < reta_size; entry++) {
1186                 int grp = entry / RTE_RETA_GROUP_SIZE;
1187                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1188
1189                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1190                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1191         }
1192
1193         sfc_adapter_unlock(sa);
1194
1195         return 0;
1196 }
1197
1198 static int
1199 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1200                         struct rte_eth_rss_reta_entry64 *reta_conf,
1201                         uint16_t reta_size)
1202 {
1203         struct sfc_adapter *sa = dev->data->dev_private;
1204         unsigned int *rss_tbl_new;
1205         uint16_t entry;
1206         int rc;
1207
1208
1209         if ((sa->rss_channels == 1) ||
1210             (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)) {
1211                 sfc_err(sa, "RSS is not available");
1212                 return -ENOTSUP;
1213         }
1214
1215         if (reta_size != EFX_RSS_TBL_SIZE) {
1216                 sfc_err(sa, "RETA size is wrong (should be %u)",
1217                         EFX_RSS_TBL_SIZE);
1218                 return -EINVAL;
1219         }
1220
1221         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1222         if (rss_tbl_new == NULL)
1223                 return -ENOMEM;
1224
1225         sfc_adapter_lock(sa);
1226
1227         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1228
1229         for (entry = 0; entry < reta_size; entry++) {
1230                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1231                 struct rte_eth_rss_reta_entry64 *grp;
1232
1233                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1234
1235                 if (grp->mask & (1ull << grp_idx)) {
1236                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1237                                 rc = EINVAL;
1238                                 goto bad_reta_entry;
1239                         }
1240                         rss_tbl_new[entry] = grp->reta[grp_idx];
1241                 }
1242         }
1243
1244         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1245         if (rc == 0)
1246                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1247
1248 bad_reta_entry:
1249         sfc_adapter_unlock(sa);
1250
1251         rte_free(rss_tbl_new);
1252
1253         SFC_ASSERT(rc >= 0);
1254         return -rc;
1255 }
1256 #endif
1257
1258 static int
1259 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1260                     enum rte_filter_op filter_op,
1261                     void *arg)
1262 {
1263         struct sfc_adapter *sa = dev->data->dev_private;
1264         int rc = ENOTSUP;
1265
1266         sfc_log_init(sa, "entry");
1267
1268         switch (filter_type) {
1269         case RTE_ETH_FILTER_NONE:
1270                 sfc_err(sa, "Global filters configuration not supported");
1271                 break;
1272         case RTE_ETH_FILTER_MACVLAN:
1273                 sfc_err(sa, "MACVLAN filters not supported");
1274                 break;
1275         case RTE_ETH_FILTER_ETHERTYPE:
1276                 sfc_err(sa, "EtherType filters not supported");
1277                 break;
1278         case RTE_ETH_FILTER_FLEXIBLE:
1279                 sfc_err(sa, "Flexible filters not supported");
1280                 break;
1281         case RTE_ETH_FILTER_SYN:
1282                 sfc_err(sa, "SYN filters not supported");
1283                 break;
1284         case RTE_ETH_FILTER_NTUPLE:
1285                 sfc_err(sa, "NTUPLE filters not supported");
1286                 break;
1287         case RTE_ETH_FILTER_TUNNEL:
1288                 sfc_err(sa, "Tunnel filters not supported");
1289                 break;
1290         case RTE_ETH_FILTER_FDIR:
1291                 sfc_err(sa, "Flow Director filters not supported");
1292                 break;
1293         case RTE_ETH_FILTER_HASH:
1294                 sfc_err(sa, "Hash filters not supported");
1295                 break;
1296         case RTE_ETH_FILTER_GENERIC:
1297                 if (filter_op != RTE_ETH_FILTER_GET) {
1298                         rc = EINVAL;
1299                 } else {
1300                         *(const void **)arg = &sfc_flow_ops;
1301                         rc = 0;
1302                 }
1303                 break;
1304         default:
1305                 sfc_err(sa, "Unknown filter type %u", filter_type);
1306                 break;
1307         }
1308
1309         sfc_log_init(sa, "exit: %d", -rc);
1310         SFC_ASSERT(rc >= 0);
1311         return -rc;
1312 }
1313
1314 static const struct eth_dev_ops sfc_eth_dev_ops = {
1315         .dev_configure                  = sfc_dev_configure,
1316         .dev_start                      = sfc_dev_start,
1317         .dev_stop                       = sfc_dev_stop,
1318         .dev_set_link_up                = sfc_dev_set_link_up,
1319         .dev_set_link_down              = sfc_dev_set_link_down,
1320         .dev_close                      = sfc_dev_close,
1321         .promiscuous_enable             = sfc_dev_promisc_enable,
1322         .promiscuous_disable            = sfc_dev_promisc_disable,
1323         .allmulticast_enable            = sfc_dev_allmulti_enable,
1324         .allmulticast_disable           = sfc_dev_allmulti_disable,
1325         .link_update                    = sfc_dev_link_update,
1326         .stats_get                      = sfc_stats_get,
1327         .stats_reset                    = sfc_stats_reset,
1328         .xstats_get                     = sfc_xstats_get,
1329         .xstats_reset                   = sfc_stats_reset,
1330         .xstats_get_names               = sfc_xstats_get_names,
1331         .dev_infos_get                  = sfc_dev_infos_get,
1332         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1333         .mtu_set                        = sfc_dev_set_mtu,
1334         .rx_queue_start                 = sfc_rx_queue_start,
1335         .rx_queue_stop                  = sfc_rx_queue_stop,
1336         .tx_queue_start                 = sfc_tx_queue_start,
1337         .tx_queue_stop                  = sfc_tx_queue_stop,
1338         .rx_queue_setup                 = sfc_rx_queue_setup,
1339         .rx_queue_release               = sfc_rx_queue_release,
1340         .rx_queue_count                 = sfc_rx_queue_count,
1341         .rx_descriptor_done             = sfc_rx_descriptor_done,
1342         .tx_queue_setup                 = sfc_tx_queue_setup,
1343         .tx_queue_release               = sfc_tx_queue_release,
1344         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1345         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1346         .mac_addr_set                   = sfc_mac_addr_set,
1347 #if EFSYS_OPT_RX_SCALE
1348         .reta_update                    = sfc_dev_rss_reta_update,
1349         .reta_query                     = sfc_dev_rss_reta_query,
1350         .rss_hash_update                = sfc_dev_rss_hash_update,
1351         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1352 #endif
1353         .filter_ctrl                    = sfc_dev_filter_ctrl,
1354         .set_mc_addr_list               = sfc_set_mc_addr_list,
1355         .rxq_info_get                   = sfc_rx_queue_info_get,
1356         .txq_info_get                   = sfc_tx_queue_info_get,
1357         .fw_version_get                 = sfc_fw_version_get,
1358 };
1359
1360 static int
1361 sfc_eth_dev_init(struct rte_eth_dev *dev)
1362 {
1363         struct sfc_adapter *sa = dev->data->dev_private;
1364         struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
1365         int rc;
1366         const efx_nic_cfg_t *encp;
1367         const struct ether_addr *from;
1368
1369         /* Required for logging */
1370         sa->eth_dev = dev;
1371
1372         /* Copy PCI device info to the dev->data */
1373         rte_eth_copy_pci_info(dev, pci_dev);
1374
1375         rc = sfc_kvargs_parse(sa);
1376         if (rc != 0)
1377                 goto fail_kvargs_parse;
1378
1379         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1380                                 sfc_kvarg_bool_handler, &sa->debug_init);
1381         if (rc != 0)
1382                 goto fail_kvarg_debug_init;
1383
1384         sfc_log_init(sa, "entry");
1385
1386         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1387         if (dev->data->mac_addrs == NULL) {
1388                 rc = ENOMEM;
1389                 goto fail_mac_addrs;
1390         }
1391
1392         sfc_adapter_lock_init(sa);
1393         sfc_adapter_lock(sa);
1394
1395         sfc_log_init(sa, "attaching");
1396         rc = sfc_attach(sa);
1397         if (rc != 0)
1398                 goto fail_attach;
1399
1400         encp = efx_nic_cfg_get(sa->nic);
1401
1402         /*
1403          * The arguments are really reverse order in comparison to
1404          * Linux kernel. Copy from NIC config to Ethernet device data.
1405          */
1406         from = (const struct ether_addr *)(encp->enc_mac_addr);
1407         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1408
1409         dev->dev_ops = &sfc_eth_dev_ops;
1410         dev->rx_pkt_burst = &sfc_recv_pkts;
1411         dev->tx_pkt_burst = &sfc_xmit_pkts;
1412
1413         sfc_adapter_unlock(sa);
1414
1415         sfc_log_init(sa, "done");
1416         return 0;
1417
1418 fail_attach:
1419         sfc_adapter_unlock(sa);
1420         sfc_adapter_lock_fini(sa);
1421         rte_free(dev->data->mac_addrs);
1422         dev->data->mac_addrs = NULL;
1423
1424 fail_mac_addrs:
1425 fail_kvarg_debug_init:
1426         sfc_kvargs_cleanup(sa);
1427
1428 fail_kvargs_parse:
1429         sfc_log_init(sa, "failed %d", rc);
1430         SFC_ASSERT(rc > 0);
1431         return -rc;
1432 }
1433
1434 static int
1435 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1436 {
1437         struct sfc_adapter *sa = dev->data->dev_private;
1438
1439         sfc_log_init(sa, "entry");
1440
1441         sfc_adapter_lock(sa);
1442
1443         sfc_detach(sa);
1444
1445         rte_free(dev->data->mac_addrs);
1446         dev->data->mac_addrs = NULL;
1447
1448         dev->dev_ops = NULL;
1449         dev->rx_pkt_burst = NULL;
1450         dev->tx_pkt_burst = NULL;
1451
1452         sfc_kvargs_cleanup(sa);
1453
1454         sfc_adapter_unlock(sa);
1455         sfc_adapter_lock_fini(sa);
1456
1457         sfc_log_init(sa, "done");
1458
1459         /* Required for logging, so cleanup last */
1460         sa->eth_dev = NULL;
1461         return 0;
1462 }
1463
1464 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1465         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1466         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1467         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1468         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1469         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1470         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1471         { .vendor_id = 0 /* sentinel */ }
1472 };
1473
1474 static struct eth_driver sfc_efx_pmd = {
1475         .pci_drv = {
1476                 .id_table = pci_id_sfc_efx_map,
1477                 .drv_flags =
1478                         RTE_PCI_DRV_INTR_LSC |
1479                         RTE_PCI_DRV_NEED_MAPPING,
1480                 .probe = rte_eth_dev_pci_probe,
1481                 .remove = rte_eth_dev_pci_remove,
1482         },
1483         .eth_dev_init = sfc_eth_dev_init,
1484         .eth_dev_uninit = sfc_eth_dev_uninit,
1485         .dev_private_size = sizeof(struct sfc_adapter),
1486 };
1487
1488 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv);
1489 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1490 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio");
1491 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1492         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1493         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1494         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1495         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);