drivers/net/sfc/sfc_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  * Copyright (c) 2016-2017 Solarflare Communications Inc.
   5  * All rights reserved.
   6  *
   7  * This software was jointly developed between OKTET Labs (under contract
   8  * for Solarflare) and Solarflare Communications, Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright notice,
  16  *    this list of conditions and the following disclaimer in the documentation
  17  *    and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  29  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <rte_dev.h>
  33 #include <rte_ethdev.h>
  34 #include <rte_ethdev_pci.h>
  35 #include <rte_pci.h>
  36 #include <rte_errno.h>
  37
  38 #include "efx.h"
  39
  40 #include "sfc.h"
  41 #include "sfc_debug.h"
  42 #include "sfc_log.h"
  43 #include "sfc_kvargs.h"
  44 #include "sfc_ev.h"
  45 #include "sfc_rx.h"
  46 #include "sfc_tx.h"
  47 #include "sfc_flow.h"
  48 #include "sfc_dp.h"
  49 #include "sfc_dp_rx.h"
  50
  51 static struct sfc_dp_list sfc_dp_head =
  52         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  53
  54 static int
  55 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  56 {
  57         struct sfc_adapter *sa = dev->data->dev_private;
  58         efx_nic_fw_info_t enfi;
  59         int ret;
  60         int rc;
  61
  62         /*
  63          * Return value of the callback is likely supposed to be
  64          * equal to or greater than 0, nevertheless, if an error
  65          * occurs, it will be desirable to pass it to the caller
  66          */
  67         if ((fw_version == NULL) || (fw_size == 0))
  68                 return -EINVAL;
  69
  70         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  71         if (rc != 0)
  72                 return -rc;
  73
  74         ret = snprintf(fw_version, fw_size,
  75                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  76                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  77                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  78         if (ret < 0)
  79                 return ret;
  80
  81         if (enfi.enfi_dpcpu_fw_ids_valid) {
  82                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  83                 int ret_extra;
  84
  85                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  86                                      fw_size - dpcpu_fw_ids_offset,
  87                                      " rx%" PRIx16 " tx%" PRIx16,
  88                                      enfi.enfi_rx_dpcpu_fw_id,
  89                                      enfi.enfi_tx_dpcpu_fw_id);
  90                 if (ret_extra < 0)
  91                         return ret_extra;
  92
  93                 ret += ret_extra;
  94         }
  95
  96         if (fw_size < (size_t)(++ret))
  97                 return ret;
  98         else
  99                 return 0;
 100 }
 101
 102 static void
 103 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 104 {
 105         struct sfc_adapter *sa = dev->data->dev_private;
 106         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 107
 108         sfc_log_init(sa, "entry");
 109
 110         dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device);
 111         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 112
 113         /* Autonegotiation may be disabled */
 114         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 115         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 116                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 117         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 118                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 119         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 120                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 121
 122         dev_info->max_rx_queues = sa->rxq_max;
 123         dev_info->max_tx_queues = sa->txq_max;
 124
 125         /* By default packets are dropped if no descriptors are available */
 126         dev_info->default_rxconf.rx_drop_en = 1;
 127
 128         dev_info->rx_offload_capa =
 129                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 130                 DEV_RX_OFFLOAD_UDP_CKSUM |
 131                 DEV_RX_OFFLOAD_TCP_CKSUM;
 132
 133         dev_info->tx_offload_capa =
 134                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 135                 DEV_TX_OFFLOAD_UDP_CKSUM |
 136                 DEV_TX_OFFLOAD_TCP_CKSUM;
 137
 138         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 139         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 140             !encp->enc_hw_tx_insert_vlan_enabled)
 141                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 142         else
 143                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 144
 145         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 146                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 147
 148 #if EFSYS_OPT_RX_SCALE
 149         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 150                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 151                 dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
 152                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 153         }
 154 #endif
 155
 156         if (sa->tso)
 157                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 158
 159         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 160         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 161         /* The RXQ hardware requires that the descriptor count is a power
 162          * of 2, but rx_desc_lim cannot properly describe that constraint.
 163          */
 164         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 165
 166         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 167         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 168         /*
 169          * The TXQ hardware requires that the descriptor count is a power
 170          * of 2, but tx_desc_lim cannot properly describe that constraint
 171          */
 172         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 173 }
 174
 175 static const uint32_t *
 176 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 177 {
 178         struct sfc_adapter *sa = dev->data->dev_private;
 179
 180         return sa->dp_rx->supported_ptypes_get();
 181 }
 182
 183 static int
 184 sfc_dev_configure(struct rte_eth_dev *dev)
 185 {
 186         struct rte_eth_dev_data *dev_data = dev->data;
 187         struct sfc_adapter *sa = dev_data->dev_private;
 188         int rc;
 189
 190         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 191                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 192
 193         sfc_adapter_lock(sa);
 194         switch (sa->state) {
 195         case SFC_ADAPTER_CONFIGURED:
 196                 /* FALLTHROUGH */
 197         case SFC_ADAPTER_INITIALIZED:
 198                 rc = sfc_configure(sa);
 199                 break;
 200         default:
 201                 sfc_err(sa, "unexpected adapter state %u to configure",
 202                         sa->state);
 203                 rc = EINVAL;
 204                 break;
 205         }
 206         sfc_adapter_unlock(sa);
 207
 208         sfc_log_init(sa, "done %d", rc);
 209         SFC_ASSERT(rc >= 0);
 210         return -rc;
 211 }
 212
 213 static int
 214 sfc_dev_start(struct rte_eth_dev *dev)
 215 {
 216         struct sfc_adapter *sa = dev->data->dev_private;
 217         int rc;
 218
 219         sfc_log_init(sa, "entry");
 220
 221         sfc_adapter_lock(sa);
 222         rc = sfc_start(sa);
 223         sfc_adapter_unlock(sa);
 224
 225         sfc_log_init(sa, "done %d", rc);
 226         SFC_ASSERT(rc >= 0);
 227         return -rc;
 228 }
 229
 230 static int
 231 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 232 {
 233         struct sfc_adapter *sa = dev->data->dev_private;
 234         struct rte_eth_link *dev_link = &dev->data->dev_link;
 235         struct rte_eth_link old_link;
 236         struct rte_eth_link current_link;
 237
 238         sfc_log_init(sa, "entry");
 239
 240 retry:
 241         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 242         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 243
 244         if (sa->state != SFC_ADAPTER_STARTED) {
 245                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 246                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 247                                          *(uint64_t *)&old_link,
 248                                          *(uint64_t *)&current_link))
 249                         goto retry;
 250         } else if (wait_to_complete) {
 251                 efx_link_mode_t link_mode;
 252
 253                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 254                         link_mode = EFX_LINK_UNKNOWN;
 255                 sfc_port_link_mode_to_info(link_mode, &current_link);
 256
 257                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 258                                          *(uint64_t *)&old_link,
 259                                          *(uint64_t *)&current_link))
 260                         goto retry;
 261         } else {
 262                 sfc_ev_mgmt_qpoll(sa);
 263                 *(int64_t *)&current_link =
 264                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 265         }
 266
 267         if (old_link.link_status != current_link.link_status)
 268                 sfc_info(sa, "Link status is %s",
 269                          current_link.link_status ? "UP" : "DOWN");
 270
 271         return old_link.link_status == current_link.link_status ? 0 : -1;
 272 }
 273
 274 static void
 275 sfc_dev_stop(struct rte_eth_dev *dev)
 276 {
 277         struct sfc_adapter *sa = dev->data->dev_private;
 278
 279         sfc_log_init(sa, "entry");
 280
 281         sfc_adapter_lock(sa);
 282         sfc_stop(sa);
 283         sfc_adapter_unlock(sa);
 284
 285         sfc_log_init(sa, "done");
 286 }
 287
 288 static int
 289 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 290 {
 291         struct sfc_adapter *sa = dev->data->dev_private;
 292         int rc;
 293
 294         sfc_log_init(sa, "entry");
 295
 296         sfc_adapter_lock(sa);
 297         rc = sfc_start(sa);
 298         sfc_adapter_unlock(sa);
 299
 300         SFC_ASSERT(rc >= 0);
 301         return -rc;
 302 }
 303
 304 static int
 305 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 306 {
 307         struct sfc_adapter *sa = dev->data->dev_private;
 308
 309         sfc_log_init(sa, "entry");
 310
 311         sfc_adapter_lock(sa);
 312         sfc_stop(sa);
 313         sfc_adapter_unlock(sa);
 314
 315         return 0;
 316 }
 317
 318 static void
 319 sfc_dev_close(struct rte_eth_dev *dev)
 320 {
 321         struct sfc_adapter *sa = dev->data->dev_private;
 322
 323         sfc_log_init(sa, "entry");
 324
 325         sfc_adapter_lock(sa);
 326         switch (sa->state) {
 327         case SFC_ADAPTER_STARTED:
 328                 sfc_stop(sa);
 329                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 330                 /* FALLTHROUGH */
 331         case SFC_ADAPTER_CONFIGURED:
 332                 sfc_close(sa);
 333                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 334                 /* FALLTHROUGH */
 335         case SFC_ADAPTER_INITIALIZED:
 336                 break;
 337         default:
 338                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 339                 break;
 340         }
 341         sfc_adapter_unlock(sa);
 342
 343         sfc_log_init(sa, "done");
 344 }
 345
 346 static void
 347 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 348                    boolean_t enabled)
 349 {
 350         struct sfc_port *port;
 351         boolean_t *toggle;
 352         struct sfc_adapter *sa = dev->data->dev_private;
 353         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 354         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 355
 356         sfc_adapter_lock(sa);
 357
 358         port = &sa->port;
 359         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 360
 361         if (*toggle != enabled) {
 362                 *toggle = enabled;
 363
 364                 if ((sa->state == SFC_ADAPTER_STARTED) &&
 365                     (sfc_set_rx_mode(sa) != 0)) {
 366                         *toggle = !(enabled);
 367                         sfc_warn(sa, "Failed to %s %s mode",
 368                                  ((enabled) ? "enable" : "disable"), desc);
 369                 }
 370         }
 371
 372         sfc_adapter_unlock(sa);
 373 }
 374
 375 static void
 376 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 377 {
 378         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 379 }
 380
 381 static void
 382 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 383 {
 384         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 385 }
 386
 387 static void
 388 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 389 {
 390         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 391 }
 392
 393 static void
 394 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 395 {
 396         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 397 }
 398
 399 static int
 400 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 401                    uint16_t nb_rx_desc, unsigned int socket_id,
 402                    const struct rte_eth_rxconf *rx_conf,
 403                    struct rte_mempool *mb_pool)
 404 {
 405         struct sfc_adapter *sa = dev->data->dev_private;
 406         int rc;
 407
 408         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 409                      rx_queue_id, nb_rx_desc, socket_id);
 410
 411         sfc_adapter_lock(sa);
 412
 413         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 414                           rx_conf, mb_pool);
 415         if (rc != 0)
 416                 goto fail_rx_qinit;
 417
 418         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 419
 420         sfc_adapter_unlock(sa);
 421
 422         return 0;
 423
 424 fail_rx_qinit:
 425         sfc_adapter_unlock(sa);
 426         SFC_ASSERT(rc > 0);
 427         return -rc;
 428 }
 429
 430 static void
 431 sfc_rx_queue_release(void *queue)
 432 {
 433         struct sfc_dp_rxq *dp_rxq = queue;
 434         struct sfc_rxq *rxq;
 435         struct sfc_adapter *sa;
 436         unsigned int sw_index;
 437
 438         if (dp_rxq == NULL)
 439                 return;
 440
 441         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 442         sa = rxq->evq->sa;
 443         sfc_adapter_lock(sa);
 444
 445         sw_index = sfc_rxq_sw_index(rxq);
 446
 447         sfc_log_init(sa, "RxQ=%u", sw_index);
 448
 449         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 450
 451         sfc_rx_qfini(sa, sw_index);
 452
 453         sfc_adapter_unlock(sa);
 454 }
 455
 456 static int
 457 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 458                    uint16_t nb_tx_desc, unsigned int socket_id,
 459                    const struct rte_eth_txconf *tx_conf)
 460 {
 461         struct sfc_adapter *sa = dev->data->dev_private;
 462         int rc;
 463
 464         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 465                      tx_queue_id, nb_tx_desc, socket_id);
 466
 467         sfc_adapter_lock(sa);
 468
 469         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 470         if (rc != 0)
 471                 goto fail_tx_qinit;
 472
 473         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 474
 475         sfc_adapter_unlock(sa);
 476         return 0;
 477
 478 fail_tx_qinit:
 479         sfc_adapter_unlock(sa);
 480         SFC_ASSERT(rc > 0);
 481         return -rc;
 482 }
 483
 484 static void
 485 sfc_tx_queue_release(void *queue)
 486 {
 487         struct sfc_dp_txq *dp_txq = queue;
 488         struct sfc_txq *txq;
 489         unsigned int sw_index;
 490         struct sfc_adapter *sa;
 491
 492         if (dp_txq == NULL)
 493                 return;
 494
 495         txq = sfc_txq_by_dp_txq(dp_txq);
 496         sw_index = sfc_txq_sw_index(txq);
 497
 498         SFC_ASSERT(txq->evq != NULL);
 499         sa = txq->evq->sa;
 500
 501         sfc_log_init(sa, "TxQ = %u", sw_index);
 502
 503         sfc_adapter_lock(sa);
 504
 505         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 506         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 507
 508         sfc_tx_qfini(sa, sw_index);
 509
 510         sfc_adapter_unlock(sa);
 511 }
 512
 513 static void
 514 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 515 {
 516         struct sfc_adapter *sa = dev->data->dev_private;
 517         struct sfc_port *port = &sa->port;
 518         uint64_t *mac_stats;
 519
 520         rte_spinlock_lock(&port->mac_stats_lock);
 521
 522         if (sfc_port_update_mac_stats(sa) != 0)
 523                 goto unlock;
 524
 525         mac_stats = port->mac_stats_buf;
 526
 527         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 528                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 529                 stats->ipackets =
 530                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 531                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 532                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 533                 stats->opackets =
 534                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 535                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 536                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 537                 stats->ibytes =
 538                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 539                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 540                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 541                 stats->obytes =
 542                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 543                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 544                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 545                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 546                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 547                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 548         } else {
 549                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 550                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 551                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 552                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 553                 /*
 554                  * Take into account stats which are whenever supported
 555                  * on EF10. If some stat is not supported by current
 556                  * firmware variant or HW revision, it is guaranteed
 557                  * to be zero in mac_stats.
 558                  */
 559                 stats->imissed =
 560                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 561                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 562                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 563                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 564                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 565                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 566                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 567                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 568                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 569                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 570                 stats->ierrors =
 571                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 572                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 573                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 574                 /* no oerrors counters supported on EF10 */
 575         }
 576
 577 unlock:
 578         rte_spinlock_unlock(&port->mac_stats_lock);
 579 }
 580
 581 static void
 582 sfc_stats_reset(struct rte_eth_dev *dev)
 583 {
 584         struct sfc_adapter *sa = dev->data->dev_private;
 585         struct sfc_port *port = &sa->port;
 586         int rc;
 587
 588         if (sa->state != SFC_ADAPTER_STARTED) {
 589                 /*
 590                  * The operation cannot be done if port is not started; it
 591                  * will be scheduled to be done during the next port start
 592                  */
 593                 port->mac_stats_reset_pending = B_TRUE;
 594                 return;
 595         }
 596
 597         rc = sfc_port_reset_mac_stats(sa);
 598         if (rc != 0)
 599                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 600 }
 601
 602 static int
 603 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 604                unsigned int xstats_count)
 605 {
 606         struct sfc_adapter *sa = dev->data->dev_private;
 607         struct sfc_port *port = &sa->port;
 608         uint64_t *mac_stats;
 609         int rc;
 610         unsigned int i;
 611         int nstats = 0;
 612
 613         rte_spinlock_lock(&port->mac_stats_lock);
 614
 615         rc = sfc_port_update_mac_stats(sa);
 616         if (rc != 0) {
 617                 SFC_ASSERT(rc > 0);
 618                 nstats = -rc;
 619                 goto unlock;
 620         }
 621
 622         mac_stats = port->mac_stats_buf;
 623
 624         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 625                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 626                         if (xstats != NULL && nstats < (int)xstats_count) {
 627                                 xstats[nstats].id = nstats;
 628                                 xstats[nstats].value = mac_stats[i];
 629                         }
 630                         nstats++;
 631                 }
 632         }
 633
 634 unlock:
 635         rte_spinlock_unlock(&port->mac_stats_lock);
 636
 637         return nstats;
 638 }
 639
 640 static int
 641 sfc_xstats_get_names(struct rte_eth_dev *dev,
 642                      struct rte_eth_xstat_name *xstats_names,
 643                      unsigned int xstats_count)
 644 {
 645         struct sfc_adapter *sa = dev->data->dev_private;
 646         struct sfc_port *port = &sa->port;
 647         unsigned int i;
 648         unsigned int nstats = 0;
 649
 650         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 651                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 652                         if (xstats_names != NULL && nstats < xstats_count)
 653                                 strncpy(xstats_names[nstats].name,
 654                                         efx_mac_stat_name(sa->nic, i),
 655                                         sizeof(xstats_names[0].name));
 656                         nstats++;
 657                 }
 658         }
 659
 660         return nstats;
 661 }
 662
 663 static int
 664 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 665 {
 666         struct sfc_adapter *sa = dev->data->dev_private;
 667         unsigned int wanted_fc, link_fc;
 668
 669         memset(fc_conf, 0, sizeof(*fc_conf));
 670
 671         sfc_adapter_lock(sa);
 672
 673         if (sa->state == SFC_ADAPTER_STARTED)
 674                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 675         else
 676                 link_fc = sa->port.flow_ctrl;
 677
 678         switch (link_fc) {
 679         case 0:
 680                 fc_conf->mode = RTE_FC_NONE;
 681                 break;
 682         case EFX_FCNTL_RESPOND:
 683                 fc_conf->mode = RTE_FC_RX_PAUSE;
 684                 break;
 685         case EFX_FCNTL_GENERATE:
 686                 fc_conf->mode = RTE_FC_TX_PAUSE;
 687                 break;
 688         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 689                 fc_conf->mode = RTE_FC_FULL;
 690                 break;
 691         default:
 692                 sfc_err(sa, "%s: unexpected flow control value %#x",
 693                         __func__, link_fc);
 694         }
 695
 696         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 697
 698         sfc_adapter_unlock(sa);
 699
 700         return 0;
 701 }
 702
 703 static int
 704 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 705 {
 706         struct sfc_adapter *sa = dev->data->dev_private;
 707         struct sfc_port *port = &sa->port;
 708         unsigned int fcntl;
 709         int rc;
 710
 711         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 712             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 713             fc_conf->mac_ctrl_frame_fwd != 0) {
 714                 sfc_err(sa, "unsupported flow control settings specified");
 715                 rc = EINVAL;
 716                 goto fail_inval;
 717         }
 718
 719         switch (fc_conf->mode) {
 720         case RTE_FC_NONE:
 721                 fcntl = 0;
 722                 break;
 723         case RTE_FC_RX_PAUSE:
 724                 fcntl = EFX_FCNTL_RESPOND;
 725                 break;
 726         case RTE_FC_TX_PAUSE:
 727                 fcntl = EFX_FCNTL_GENERATE;
 728                 break;
 729         case RTE_FC_FULL:
 730                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 731                 break;
 732         default:
 733                 rc = EINVAL;
 734                 goto fail_inval;
 735         }
 736
 737         sfc_adapter_lock(sa);
 738
 739         if (sa->state == SFC_ADAPTER_STARTED) {
 740                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 741                 if (rc != 0)
 742                         goto fail_mac_fcntl_set;
 743         }
 744
 745         port->flow_ctrl = fcntl;
 746         port->flow_ctrl_autoneg = fc_conf->autoneg;
 747
 748         sfc_adapter_unlock(sa);
 749
 750         return 0;
 751
 752 fail_mac_fcntl_set:
 753         sfc_adapter_unlock(sa);
 754 fail_inval:
 755         SFC_ASSERT(rc > 0);
 756         return -rc;
 757 }
 758
 759 static int
 760 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 761 {
 762         struct sfc_adapter *sa = dev->data->dev_private;
 763         size_t pdu = EFX_MAC_PDU(mtu);
 764         size_t old_pdu;
 765         int rc;
 766
 767         sfc_log_init(sa, "mtu=%u", mtu);
 768
 769         rc = EINVAL;
 770         if (pdu < EFX_MAC_PDU_MIN) {
 771                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 772                         (unsigned int)mtu, (unsigned int)pdu,
 773                         EFX_MAC_PDU_MIN);
 774                 goto fail_inval;
 775         }
 776         if (pdu > EFX_MAC_PDU_MAX) {
 777                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 778                         (unsigned int)mtu, (unsigned int)pdu,
 779                         EFX_MAC_PDU_MAX);
 780                 goto fail_inval;
 781         }
 782
 783         sfc_adapter_lock(sa);
 784
 785         if (pdu != sa->port.pdu) {
 786                 if (sa->state == SFC_ADAPTER_STARTED) {
 787                         sfc_stop(sa);
 788
 789                         old_pdu = sa->port.pdu;
 790                         sa->port.pdu = pdu;
 791                         rc = sfc_start(sa);
 792                         if (rc != 0)
 793                                 goto fail_start;
 794                 } else {
 795                         sa->port.pdu = pdu;
 796                 }
 797         }
 798
 799         /*
 800          * The driver does not use it, but other PMDs update jumbo_frame
 801          * flag and max_rx_pkt_len when MTU is set.
 802          */
 803         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 804         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 805
 806         sfc_adapter_unlock(sa);
 807
 808         sfc_log_init(sa, "done");
 809         return 0;
 810
 811 fail_start:
 812         sa->port.pdu = old_pdu;
 813         if (sfc_start(sa) != 0)
 814                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 815                         "PDU max size - port is stopped",
 816                         (unsigned int)pdu, (unsigned int)old_pdu);
 817         sfc_adapter_unlock(sa);
 818
 819 fail_inval:
 820         sfc_log_init(sa, "failed %d", rc);
 821         SFC_ASSERT(rc > 0);
 822         return -rc;
 823 }
 824 static void
 825 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 826 {
 827         struct sfc_adapter *sa = dev->data->dev_private;
 828         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 829         int rc;
 830
 831         sfc_adapter_lock(sa);
 832
 833         if (sa->state != SFC_ADAPTER_STARTED) {
 834                 sfc_info(sa, "the port is not started");
 835                 sfc_info(sa, "the new MAC address will be set on port start");
 836
 837                 goto unlock;
 838         }
 839
 840         if (encp->enc_allow_set_mac_with_installed_filters) {
 841                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 842                 if (rc != 0) {
 843                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 844                         goto unlock;
 845                 }
 846
 847                 /*
 848                  * Changing the MAC address by means of MCDI request
 849                  * has no effect on received traffic, therefore
 850                  * we also need to update unicast filters
 851                  */
 852                 rc = sfc_set_rx_mode(sa);
 853                 if (rc != 0)
 854                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 855         } else {
 856                 sfc_warn(sa, "cannot set MAC address with filters installed");
 857                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 858                 sfc_warn(sa, "(some traffic may be dropped)");
 859
 860                 /*
 861                  * Since setting MAC address with filters installed is not
 862                  * allowed on the adapter, one needs to simply restart adapter
 863                  * so that the new MAC address will be taken from an outer
 864                  * storage and set flawlessly by means of sfc_start() call
 865                  */
 866                 sfc_stop(sa);
 867                 rc = sfc_start(sa);
 868                 if (rc != 0)
 869                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 870         }
 871
 872 unlock:
 873         sfc_adapter_unlock(sa);
 874 }
 875
 876
 877 static int
 878 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 879                      uint32_t nb_mc_addr)
 880 {
 881         struct sfc_adapter *sa = dev->data->dev_private;
 882         struct sfc_port *port = &sa->port;
 883         uint8_t *mc_addrs = port->mcast_addrs;
 884         int rc;
 885         unsigned int i;
 886
 887         if (mc_addrs == NULL)
 888                 return -ENOBUFS;
 889
 890         if (nb_mc_addr > port->max_mcast_addrs) {
 891                 sfc_err(sa, "too many multicast addresses: %u > %u",
 892                          nb_mc_addr, port->max_mcast_addrs);
 893                 return -EINVAL;
 894         }
 895
 896         for (i = 0; i < nb_mc_addr; ++i) {
 897                 (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 898                                  EFX_MAC_ADDR_LEN);
 899                 mc_addrs += EFX_MAC_ADDR_LEN;
 900         }
 901
 902         port->nb_mcast_addrs = nb_mc_addr;
 903
 904         if (sa->state != SFC_ADAPTER_STARTED)
 905                 return 0;
 906
 907         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
 908                                         port->nb_mcast_addrs);
 909         if (rc != 0)
 910                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 911
 912         SFC_ASSERT(rc > 0);
 913         return -rc;
 914 }
 915
 916 static void
 917 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 918                       struct rte_eth_rxq_info *qinfo)
 919 {
 920         struct sfc_adapter *sa = dev->data->dev_private;
 921         struct sfc_rxq_info *rxq_info;
 922         struct sfc_rxq *rxq;
 923
 924         sfc_adapter_lock(sa);
 925
 926         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 927
 928         rxq_info = &sa->rxq_info[rx_queue_id];
 929         rxq = rxq_info->rxq;
 930         SFC_ASSERT(rxq != NULL);
 931
 932         qinfo->mp = rxq->refill_mb_pool;
 933         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 934         qinfo->conf.rx_drop_en = 1;
 935         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 936         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 937         qinfo->nb_desc = rxq_info->entries;
 938
 939         sfc_adapter_unlock(sa);
 940 }
 941
 942 static void
 943 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 944                       struct rte_eth_txq_info *qinfo)
 945 {
 946         struct sfc_adapter *sa = dev->data->dev_private;
 947         struct sfc_txq_info *txq_info;
 948
 949         sfc_adapter_lock(sa);
 950
 951         SFC_ASSERT(tx_queue_id < sa->txq_count);
 952
 953         txq_info = &sa->txq_info[tx_queue_id];
 954         SFC_ASSERT(txq_info->txq != NULL);
 955
 956         memset(qinfo, 0, sizeof(*qinfo));
 957
 958         qinfo->conf.txq_flags = txq_info->txq->flags;
 959         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 960         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 961         qinfo->nb_desc = txq_info->entries;
 962
 963         sfc_adapter_unlock(sa);
 964 }
 965
 966 static uint32_t
 967 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 968 {
 969         struct sfc_adapter *sa = dev->data->dev_private;
 970
 971         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 972
 973         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 974 }
 975
 976 static int
 977 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 978 {
 979         struct sfc_dp_rxq *dp_rxq = queue;
 980
 981         return sfc_rx_qdesc_done(dp_rxq, offset);
 982 }
 983
 984 static int
 985 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 986 {
 987         struct sfc_adapter *sa = dev->data->dev_private;
 988         int rc;
 989
 990         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 991
 992         sfc_adapter_lock(sa);
 993
 994         rc = EINVAL;
 995         if (sa->state != SFC_ADAPTER_STARTED)
 996                 goto fail_not_started;
 997
 998         rc = sfc_rx_qstart(sa, rx_queue_id);
 999         if (rc != 0)
1000                 goto fail_rx_qstart;
1001
1002         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1003
1004         sfc_adapter_unlock(sa);
1005
1006         return 0;
1007
1008 fail_rx_qstart:
1009 fail_not_started:
1010         sfc_adapter_unlock(sa);
1011         SFC_ASSERT(rc > 0);
1012         return -rc;
1013 }
1014
1015 static int
1016 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1017 {
1018         struct sfc_adapter *sa = dev->data->dev_private;
1019
1020         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1021
1022         sfc_adapter_lock(sa);
1023         sfc_rx_qstop(sa, rx_queue_id);
1024
1025         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1026
1027         sfc_adapter_unlock(sa);
1028
1029         return 0;
1030 }
1031
1032 static int
1033 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1034 {
1035         struct sfc_adapter *sa = dev->data->dev_private;
1036         int rc;
1037
1038         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1039
1040         sfc_adapter_lock(sa);
1041
1042         rc = EINVAL;
1043         if (sa->state != SFC_ADAPTER_STARTED)
1044                 goto fail_not_started;
1045
1046         rc = sfc_tx_qstart(sa, tx_queue_id);
1047         if (rc != 0)
1048                 goto fail_tx_qstart;
1049
1050         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1051
1052         sfc_adapter_unlock(sa);
1053         return 0;
1054
1055 fail_tx_qstart:
1056
1057 fail_not_started:
1058         sfc_adapter_unlock(sa);
1059         SFC_ASSERT(rc > 0);
1060         return -rc;
1061 }
1062
1063 static int
1064 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1065 {
1066         struct sfc_adapter *sa = dev->data->dev_private;
1067
1068         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1069
1070         sfc_adapter_lock(sa);
1071
1072         sfc_tx_qstop(sa, tx_queue_id);
1073
1074         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1075
1076         sfc_adapter_unlock(sa);
1077         return 0;
1078 }
1079
1080 #if EFSYS_OPT_RX_SCALE
1081 static int
1082 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1083                           struct rte_eth_rss_conf *rss_conf)
1084 {
1085         struct sfc_adapter *sa = dev->data->dev_private;
1086
1087         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)
1088                 return -ENOTSUP;
1089
1090         if (sa->rss_channels == 0)
1091                 return -EINVAL;
1092
1093         sfc_adapter_lock(sa);
1094
1095         /*
1096          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1097          * hence, conversion is done here to derive a correct set of ETH_RSS
1098          * flags which corresponds to the active EFX configuration stored
1099          * locally in 'sfc_adapter' and kept up-to-date
1100          */
1101         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1102         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1103         if (rss_conf->rss_key != NULL)
1104                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1105
1106         sfc_adapter_unlock(sa);
1107
1108         return 0;
1109 }
1110
1111 static int
1112 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1113                         struct rte_eth_rss_conf *rss_conf)
1114 {
1115         struct sfc_adapter *sa = dev->data->dev_private;
1116         unsigned int efx_hash_types;
1117         int rc = 0;
1118
1119         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1120                 sfc_err(sa, "RSS is not available");
1121                 return -ENOTSUP;
1122         }
1123
1124         if (sa->rss_channels == 0) {
1125                 sfc_err(sa, "RSS is not configured");
1126                 return -EINVAL;
1127         }
1128
1129         if ((rss_conf->rss_key != NULL) &&
1130             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1131                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1132                         sizeof(sa->rss_key));
1133                 return -EINVAL;
1134         }
1135
1136         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1137                 sfc_err(sa, "unsupported hash functions requested");
1138                 return -EINVAL;
1139         }
1140
1141         sfc_adapter_lock(sa);
1142
1143         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1144
1145         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1146                                    efx_hash_types, B_TRUE);
1147         if (rc != 0)
1148                 goto fail_scale_mode_set;
1149
1150         if (rss_conf->rss_key != NULL) {
1151                 if (sa->state == SFC_ADAPTER_STARTED) {
1152                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1153                                                   sizeof(sa->rss_key));
1154                         if (rc != 0)
1155                                 goto fail_scale_key_set;
1156                 }
1157
1158                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1159         }
1160
1161         sa->rss_hash_types = efx_hash_types;
1162
1163         sfc_adapter_unlock(sa);
1164
1165         return 0;
1166
1167 fail_scale_key_set:
1168         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1169                                   sa->rss_hash_types, B_TRUE) != 0)
1170                 sfc_err(sa, "failed to restore RSS mode");
1171
1172 fail_scale_mode_set:
1173         sfc_adapter_unlock(sa);
1174         return -rc;
1175 }
1176
1177 static int
1178 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1179                        struct rte_eth_rss_reta_entry64 *reta_conf,
1180                        uint16_t reta_size)
1181 {
1182         struct sfc_adapter *sa = dev->data->dev_private;
1183         int entry;
1184
1185         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)
1186                 return -ENOTSUP;
1187
1188         if (sa->rss_channels == 0)
1189                 return -EINVAL;
1190
1191         if (reta_size != EFX_RSS_TBL_SIZE)
1192                 return -EINVAL;
1193
1194         sfc_adapter_lock(sa);
1195
1196         for (entry = 0; entry < reta_size; entry++) {
1197                 int grp = entry / RTE_RETA_GROUP_SIZE;
1198                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1199
1200                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1201                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1202         }
1203
1204         sfc_adapter_unlock(sa);
1205
1206         return 0;
1207 }
1208
1209 static int
1210 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1211                         struct rte_eth_rss_reta_entry64 *reta_conf,
1212                         uint16_t reta_size)
1213 {
1214         struct sfc_adapter *sa = dev->data->dev_private;
1215         unsigned int *rss_tbl_new;
1216         uint16_t entry;
1217         int rc;
1218
1219
1220         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1221                 sfc_err(sa, "RSS is not available");
1222                 return -ENOTSUP;
1223         }
1224
1225         if (sa->rss_channels == 0) {
1226                 sfc_err(sa, "RSS is not configured");
1227                 return -EINVAL;
1228         }
1229
1230         if (reta_size != EFX_RSS_TBL_SIZE) {
1231                 sfc_err(sa, "RETA size is wrong (should be %u)",
1232                         EFX_RSS_TBL_SIZE);
1233                 return -EINVAL;
1234         }
1235
1236         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1237         if (rss_tbl_new == NULL)
1238                 return -ENOMEM;
1239
1240         sfc_adapter_lock(sa);
1241
1242         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1243
1244         for (entry = 0; entry < reta_size; entry++) {
1245                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1246                 struct rte_eth_rss_reta_entry64 *grp;
1247
1248                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1249
1250                 if (grp->mask & (1ull << grp_idx)) {
1251                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1252                                 rc = EINVAL;
1253                                 goto bad_reta_entry;
1254                         }
1255                         rss_tbl_new[entry] = grp->reta[grp_idx];
1256                 }
1257         }
1258
1259         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1260         if (rc == 0)
1261                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1262
1263 bad_reta_entry:
1264         sfc_adapter_unlock(sa);
1265
1266         rte_free(rss_tbl_new);
1267
1268         SFC_ASSERT(rc >= 0);
1269         return -rc;
1270 }
1271 #endif
1272
1273 static int
1274 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1275                     enum rte_filter_op filter_op,
1276                     void *arg)
1277 {
1278         struct sfc_adapter *sa = dev->data->dev_private;
1279         int rc = ENOTSUP;
1280
1281         sfc_log_init(sa, "entry");
1282
1283         switch (filter_type) {
1284         case RTE_ETH_FILTER_NONE:
1285                 sfc_err(sa, "Global filters configuration not supported");
1286                 break;
1287         case RTE_ETH_FILTER_MACVLAN:
1288                 sfc_err(sa, "MACVLAN filters not supported");
1289                 break;
1290         case RTE_ETH_FILTER_ETHERTYPE:
1291                 sfc_err(sa, "EtherType filters not supported");
1292                 break;
1293         case RTE_ETH_FILTER_FLEXIBLE:
1294                 sfc_err(sa, "Flexible filters not supported");
1295                 break;
1296         case RTE_ETH_FILTER_SYN:
1297                 sfc_err(sa, "SYN filters not supported");
1298                 break;
1299         case RTE_ETH_FILTER_NTUPLE:
1300                 sfc_err(sa, "NTUPLE filters not supported");
1301                 break;
1302         case RTE_ETH_FILTER_TUNNEL:
1303                 sfc_err(sa, "Tunnel filters not supported");
1304                 break;
1305         case RTE_ETH_FILTER_FDIR:
1306                 sfc_err(sa, "Flow Director filters not supported");
1307                 break;
1308         case RTE_ETH_FILTER_HASH:
1309                 sfc_err(sa, "Hash filters not supported");
1310                 break;
1311         case RTE_ETH_FILTER_GENERIC:
1312                 if (filter_op != RTE_ETH_FILTER_GET) {
1313                         rc = EINVAL;
1314                 } else {
1315                         *(const void **)arg = &sfc_flow_ops;
1316                         rc = 0;
1317                 }
1318                 break;
1319         default:
1320                 sfc_err(sa, "Unknown filter type %u", filter_type);
1321                 break;
1322         }
1323
1324         sfc_log_init(sa, "exit: %d", -rc);
1325         SFC_ASSERT(rc >= 0);
1326         return -rc;
1327 }
1328
1329 static const struct eth_dev_ops sfc_eth_dev_ops = {
1330         .dev_configure                  = sfc_dev_configure,
1331         .dev_start                      = sfc_dev_start,
1332         .dev_stop                       = sfc_dev_stop,
1333         .dev_set_link_up                = sfc_dev_set_link_up,
1334         .dev_set_link_down              = sfc_dev_set_link_down,
1335         .dev_close                      = sfc_dev_close,
1336         .promiscuous_enable             = sfc_dev_promisc_enable,
1337         .promiscuous_disable            = sfc_dev_promisc_disable,
1338         .allmulticast_enable            = sfc_dev_allmulti_enable,
1339         .allmulticast_disable           = sfc_dev_allmulti_disable,
1340         .link_update                    = sfc_dev_link_update,
1341         .stats_get                      = sfc_stats_get,
1342         .stats_reset                    = sfc_stats_reset,
1343         .xstats_get                     = sfc_xstats_get,
1344         .xstats_reset                   = sfc_stats_reset,
1345         .xstats_get_names               = sfc_xstats_get_names,
1346         .dev_infos_get                  = sfc_dev_infos_get,
1347         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1348         .mtu_set                        = sfc_dev_set_mtu,
1349         .rx_queue_start                 = sfc_rx_queue_start,
1350         .rx_queue_stop                  = sfc_rx_queue_stop,
1351         .tx_queue_start                 = sfc_tx_queue_start,
1352         .tx_queue_stop                  = sfc_tx_queue_stop,
1353         .rx_queue_setup                 = sfc_rx_queue_setup,
1354         .rx_queue_release               = sfc_rx_queue_release,
1355         .rx_queue_count                 = sfc_rx_queue_count,
1356         .rx_descriptor_done             = sfc_rx_descriptor_done,
1357         .tx_queue_setup                 = sfc_tx_queue_setup,
1358         .tx_queue_release               = sfc_tx_queue_release,
1359         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1360         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1361         .mac_addr_set                   = sfc_mac_addr_set,
1362 #if EFSYS_OPT_RX_SCALE
1363         .reta_update                    = sfc_dev_rss_reta_update,
1364         .reta_query                     = sfc_dev_rss_reta_query,
1365         .rss_hash_update                = sfc_dev_rss_hash_update,
1366         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1367 #endif
1368         .filter_ctrl                    = sfc_dev_filter_ctrl,
1369         .set_mc_addr_list               = sfc_set_mc_addr_list,
1370         .rxq_info_get                   = sfc_rx_queue_info_get,
1371         .txq_info_get                   = sfc_tx_queue_info_get,
1372         .fw_version_get                 = sfc_fw_version_get,
1373 };
1374
1375 static int
1376 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1377 {
1378         struct sfc_adapter *sa = dev->data->dev_private;
1379         unsigned int avail_caps = 0;
1380         const char *rx_name = NULL;
1381         const char *tx_name = NULL;
1382         int rc;
1383
1384         switch (sa->family) {
1385         case EFX_FAMILY_HUNTINGTON:
1386         case EFX_FAMILY_MEDFORD:
1387                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1388                 break;
1389         default:
1390                 break;
1391         }
1392
1393         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1394                                 sfc_kvarg_string_handler, &rx_name);
1395         if (rc != 0)
1396                 goto fail_kvarg_rx_datapath;
1397
1398         if (rx_name != NULL) {
1399                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1400                 if (sa->dp_rx == NULL) {
1401                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1402                         rc = ENOENT;
1403                         goto fail_dp_rx;
1404                 }
1405                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1406                         sfc_err(sa,
1407                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1408                                 rx_name);
1409                         rc = EINVAL;
1410                         goto fail_dp_rx;
1411                 }
1412         } else {
1413                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1414                 if (sa->dp_rx == NULL) {
1415                         sfc_err(sa, "Rx datapath by caps %#x not found",
1416                                 avail_caps);
1417                         rc = ENOENT;
1418                         goto fail_dp_rx;
1419                 }
1420         }
1421
1422         sfc_info(sa, "use %s Rx datapath", sa->dp_rx->dp.name);
1423
1424         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1425
1426         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1427                                 sfc_kvarg_string_handler, &tx_name);
1428         if (rc != 0)
1429                 goto fail_kvarg_tx_datapath;
1430
1431         if (tx_name != NULL) {
1432                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1433                 if (sa->dp_tx == NULL) {
1434                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1435                         rc = ENOENT;
1436                         goto fail_dp_tx;
1437                 }
1438                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1439                         sfc_err(sa,
1440                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1441                                 tx_name);
1442                         rc = EINVAL;
1443                         goto fail_dp_tx;
1444                 }
1445         } else {
1446                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1447                 if (sa->dp_tx == NULL) {
1448                         sfc_err(sa, "Tx datapath by caps %#x not found",
1449                                 avail_caps);
1450                         rc = ENOENT;
1451                         goto fail_dp_tx;
1452                 }
1453         }
1454
1455         sfc_info(sa, "use %s Tx datapath", sa->dp_tx->dp.name);
1456
1457         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1458
1459         dev->dev_ops = &sfc_eth_dev_ops;
1460
1461         return 0;
1462
1463 fail_dp_tx:
1464 fail_kvarg_tx_datapath:
1465 fail_dp_rx:
1466 fail_kvarg_rx_datapath:
1467         return rc;
1468 }
1469
1470 static void
1471 sfc_register_dp(void)
1472 {
1473         /* Register once */
1474         if (TAILQ_EMPTY(&sfc_dp_head)) {
1475                 /* Prefer EF10 datapath */
1476                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1477                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1478
1479                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1480                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1481                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1482         }
1483 }
1484
1485 static int
1486 sfc_eth_dev_init(struct rte_eth_dev *dev)
1487 {
1488         struct sfc_adapter *sa = dev->data->dev_private;
1489         struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev);
1490         int rc;
1491         const efx_nic_cfg_t *encp;
1492         const struct ether_addr *from;
1493
1494         sfc_register_dp();
1495
1496         /* Required for logging */
1497         sa->eth_dev = dev;
1498
1499         /* Copy PCI device info to the dev->data */
1500         rte_eth_copy_pci_info(dev, pci_dev);
1501
1502         rc = sfc_kvargs_parse(sa);
1503         if (rc != 0)
1504                 goto fail_kvargs_parse;
1505
1506         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1507                                 sfc_kvarg_bool_handler, &sa->debug_init);
1508         if (rc != 0)
1509                 goto fail_kvarg_debug_init;
1510
1511         sfc_log_init(sa, "entry");
1512
1513         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1514         if (dev->data->mac_addrs == NULL) {
1515                 rc = ENOMEM;
1516                 goto fail_mac_addrs;
1517         }
1518
1519         sfc_adapter_lock_init(sa);
1520         sfc_adapter_lock(sa);
1521
1522         sfc_log_init(sa, "probing");
1523         rc = sfc_probe(sa);
1524         if (rc != 0)
1525                 goto fail_probe;
1526
1527         sfc_log_init(sa, "set device ops");
1528         rc = sfc_eth_dev_set_ops(dev);
1529         if (rc != 0)
1530                 goto fail_set_ops;
1531
1532         sfc_log_init(sa, "attaching");
1533         rc = sfc_attach(sa);
1534         if (rc != 0)
1535                 goto fail_attach;
1536
1537         encp = efx_nic_cfg_get(sa->nic);
1538
1539         /*
1540          * The arguments are really reverse order in comparison to
1541          * Linux kernel. Copy from NIC config to Ethernet device data.
1542          */
1543         from = (const struct ether_addr *)(encp->enc_mac_addr);
1544         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1545
1546         sfc_adapter_unlock(sa);
1547
1548         sfc_log_init(sa, "done");
1549         return 0;
1550
1551 fail_attach:
1552 fail_set_ops:
1553         sfc_unprobe(sa);
1554
1555 fail_probe:
1556         sfc_adapter_unlock(sa);
1557         sfc_adapter_lock_fini(sa);
1558         rte_free(dev->data->mac_addrs);
1559         dev->data->mac_addrs = NULL;
1560
1561 fail_mac_addrs:
1562 fail_kvarg_debug_init:
1563         sfc_kvargs_cleanup(sa);
1564
1565 fail_kvargs_parse:
1566         sfc_log_init(sa, "failed %d", rc);
1567         SFC_ASSERT(rc > 0);
1568         return -rc;
1569 }
1570
1571 static int
1572 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1573 {
1574         struct sfc_adapter *sa = dev->data->dev_private;
1575
1576         sfc_log_init(sa, "entry");
1577
1578         sfc_adapter_lock(sa);
1579
1580         sfc_detach(sa);
1581         sfc_unprobe(sa);
1582
1583         rte_free(dev->data->mac_addrs);
1584         dev->data->mac_addrs = NULL;
1585
1586         dev->dev_ops = NULL;
1587         dev->rx_pkt_burst = NULL;
1588         dev->tx_pkt_burst = NULL;
1589
1590         sfc_kvargs_cleanup(sa);
1591
1592         sfc_adapter_unlock(sa);
1593         sfc_adapter_lock_fini(sa);
1594
1595         sfc_log_init(sa, "done");
1596
1597         /* Required for logging, so cleanup last */
1598         sa->eth_dev = NULL;
1599         return 0;
1600 }
1601
1602 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1603         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1604         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1605         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1606         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1607         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1608         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1609         { .vendor_id = 0 /* sentinel */ }
1610 };
1611
1612 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1613         struct rte_pci_device *pci_dev)
1614 {
1615         return rte_eth_dev_pci_generic_probe(pci_dev,
1616                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
1617 }
1618
1619 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
1620 {
1621         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
1622 }
1623
1624 static struct rte_pci_driver sfc_efx_pmd = {
1625         .id_table = pci_id_sfc_efx_map,
1626         .drv_flags =
1627                 RTE_PCI_DRV_INTR_LSC |
1628                 RTE_PCI_DRV_NEED_MAPPING,
1629         .probe = sfc_eth_dev_pci_probe,
1630         .remove = sfc_eth_dev_pci_remove,
1631 };
1632
1633 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
1634 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1635 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
1636 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1637         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
1638         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
1639         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1640         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1641         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1642         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);