drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2016-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <rte_dev.h>
  11 #include <rte_ethdev_driver.h>
  12 #include <rte_ethdev_pci.h>
  13 #include <rte_pci.h>
  14 #include <rte_bus_pci.h>
  15 #include <rte_errno.h>
  16 #include <rte_string_fns.h>
  17 #include <rte_ether.h>
  18
  19 #include "efx.h"
  20
  21 #include "sfc.h"
  22 #include "sfc_debug.h"
  23 #include "sfc_log.h"
  24 #include "sfc_kvargs.h"
  25 #include "sfc_ev.h"
  26 #include "sfc_rx.h"
  27 #include "sfc_tx.h"
  28 #include "sfc_flow.h"
  29 #include "sfc_dp.h"
  30 #include "sfc_dp_rx.h"
  31
  32 uint32_t sfc_logtype_driver;
  33
  34 static struct sfc_dp_list sfc_dp_head =
  35         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  36
  37
  38 static void sfc_eth_dev_clear_ops(struct rte_eth_dev *dev);
  39
  40
  41 static int
  42 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  43 {
  44         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
  45         efx_nic_fw_info_t enfi;
  46         int ret;
  47         int rc;
  48
  49         /*
  50          * Return value of the callback is likely supposed to be
  51          * equal to or greater than 0, nevertheless, if an error
  52          * occurs, it will be desirable to pass it to the caller
  53          */
  54         if ((fw_version == NULL) || (fw_size == 0))
  55                 return -EINVAL;
  56
  57         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  58         if (rc != 0)
  59                 return -rc;
  60
  61         ret = snprintf(fw_version, fw_size,
  62                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  63                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  64                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  65         if (ret < 0)
  66                 return ret;
  67
  68         if (enfi.enfi_dpcpu_fw_ids_valid) {
  69                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  70                 int ret_extra;
  71
  72                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  73                                      fw_size - dpcpu_fw_ids_offset,
  74                                      " rx%" PRIx16 " tx%" PRIx16,
  75                                      enfi.enfi_rx_dpcpu_fw_id,
  76                                      enfi.enfi_tx_dpcpu_fw_id);
  77                 if (ret_extra < 0)
  78                         return ret_extra;
  79
  80                 ret += ret_extra;
  81         }
  82
  83         if (fw_size < (size_t)(++ret))
  84                 return ret;
  85         else
  86                 return 0;
  87 }
  88
  89 static int
  90 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  91 {
  92         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
  93         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
  94         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
  95         struct sfc_rss *rss = &sas->rss;
  96         uint64_t txq_offloads_def = 0;
  97
  98         sfc_log_init(sa, "entry");
  99
 100         dev_info->min_mtu = RTE_ETHER_MIN_MTU;
 101         dev_info->max_mtu = EFX_MAC_SDU_MAX;
 102
 103         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 104
 105         /* Autonegotiation may be disabled */
 106         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 107         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_1000FDX))
 108                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 109         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_10000FDX))
 110                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 111         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_25000FDX))
 112                 dev_info->speed_capa |= ETH_LINK_SPEED_25G;
 113         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_40000FDX))
 114                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 115         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_50000FDX))
 116                 dev_info->speed_capa |= ETH_LINK_SPEED_50G;
 117         if (sa->port.phy_adv_cap_mask & (1u << EFX_PHY_CAP_100000FDX))
 118                 dev_info->speed_capa |= ETH_LINK_SPEED_100G;
 119
 120         dev_info->max_rx_queues = sa->rxq_max;
 121         dev_info->max_tx_queues = sa->txq_max;
 122
 123         /* By default packets are dropped if no descriptors are available */
 124         dev_info->default_rxconf.rx_drop_en = 1;
 125
 126         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 127
 128         /*
 129          * rx_offload_capa includes both device and queue offloads since
 130          * the latter may be requested on a per device basis which makes
 131          * sense when some offloads are needed to be set on all queues.
 132          */
 133         dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 134                                     dev_info->rx_queue_offload_capa;
 135
 136         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 137
 138         /*
 139          * tx_offload_capa includes both device and queue offloads since
 140          * the latter may be requested on a per device basis which makes
 141          * sense when some offloads are needed to be set on all queues.
 142          */
 143         dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 144                                     dev_info->tx_queue_offload_capa;
 145
 146         if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 147                 txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 148
 149         dev_info->default_txconf.offloads |= txq_offloads_def;
 150
 151         if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
 152                 uint64_t rte_hf = 0;
 153                 unsigned int i;
 154
 155                 for (i = 0; i < rss->hf_map_nb_entries; ++i)
 156                         rte_hf |= rss->hf_map[i].rte;
 157
 158                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 159                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 160                 dev_info->flow_type_rss_offloads = rte_hf;
 161         }
 162
 163         /* Initialize to hardware limits */
 164         dev_info->rx_desc_lim.nb_max = sa->rxq_max_entries;
 165         dev_info->rx_desc_lim.nb_min = sa->rxq_min_entries;
 166         /* The RXQ hardware requires that the descriptor count is a power
 167          * of 2, but rx_desc_lim cannot properly describe that constraint.
 168          */
 169         dev_info->rx_desc_lim.nb_align = sa->rxq_min_entries;
 170
 171         /* Initialize to hardware limits */
 172         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 173         dev_info->tx_desc_lim.nb_min = sa->txq_min_entries;
 174         /*
 175          * The TXQ hardware requires that the descriptor count is a power
 176          * of 2, but tx_desc_lim cannot properly describe that constraint
 177          */
 178         dev_info->tx_desc_lim.nb_align = sa->txq_min_entries;
 179
 180         if (sap->dp_rx->get_dev_info != NULL)
 181                 sap->dp_rx->get_dev_info(dev_info);
 182         if (sap->dp_tx->get_dev_info != NULL)
 183                 sap->dp_tx->get_dev_info(dev_info);
 184
 185         dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
 186                              RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 187
 188         return 0;
 189 }
 190
 191 static const uint32_t *
 192 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 193 {
 194         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
 195
 196         return sap->dp_rx->supported_ptypes_get(sap->shared->tunnel_encaps);
 197 }
 198
 199 static int
 200 sfc_dev_configure(struct rte_eth_dev *dev)
 201 {
 202         struct rte_eth_dev_data *dev_data = dev->data;
 203         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 204         int rc;
 205
 206         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 207                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 208
 209         sfc_adapter_lock(sa);
 210         switch (sa->state) {
 211         case SFC_ADAPTER_CONFIGURED:
 212                 /* FALLTHROUGH */
 213         case SFC_ADAPTER_INITIALIZED:
 214                 rc = sfc_configure(sa);
 215                 break;
 216         default:
 217                 sfc_err(sa, "unexpected adapter state %u to configure",
 218                         sa->state);
 219                 rc = EINVAL;
 220                 break;
 221         }
 222         sfc_adapter_unlock(sa);
 223
 224         sfc_log_init(sa, "done %d", rc);
 225         SFC_ASSERT(rc >= 0);
 226         return -rc;
 227 }
 228
 229 static int
 230 sfc_dev_start(struct rte_eth_dev *dev)
 231 {
 232         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 233         int rc;
 234
 235         sfc_log_init(sa, "entry");
 236
 237         sfc_adapter_lock(sa);
 238         rc = sfc_start(sa);
 239         sfc_adapter_unlock(sa);
 240
 241         sfc_log_init(sa, "done %d", rc);
 242         SFC_ASSERT(rc >= 0);
 243         return -rc;
 244 }
 245
 246 static int
 247 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 248 {
 249         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 250         struct rte_eth_link current_link;
 251         int ret;
 252
 253         sfc_log_init(sa, "entry");
 254
 255         if (sa->state != SFC_ADAPTER_STARTED) {
 256                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 257         } else if (wait_to_complete) {
 258                 efx_link_mode_t link_mode;
 259
 260                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 261                         link_mode = EFX_LINK_UNKNOWN;
 262                 sfc_port_link_mode_to_info(link_mode, &current_link);
 263
 264         } else {
 265                 sfc_ev_mgmt_qpoll(sa);
 266                 rte_eth_linkstatus_get(dev, &current_link);
 267         }
 268
 269         ret = rte_eth_linkstatus_set(dev, &current_link);
 270         if (ret == 0)
 271                 sfc_notice(sa, "Link status is %s",
 272                            current_link.link_status ? "UP" : "DOWN");
 273
 274         return ret;
 275 }
 276
 277 static void
 278 sfc_dev_stop(struct rte_eth_dev *dev)
 279 {
 280         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 281
 282         sfc_log_init(sa, "entry");
 283
 284         sfc_adapter_lock(sa);
 285         sfc_stop(sa);
 286         sfc_adapter_unlock(sa);
 287
 288         sfc_log_init(sa, "done");
 289 }
 290
 291 static int
 292 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 293 {
 294         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 295         int rc;
 296
 297         sfc_log_init(sa, "entry");
 298
 299         sfc_adapter_lock(sa);
 300         rc = sfc_start(sa);
 301         sfc_adapter_unlock(sa);
 302
 303         SFC_ASSERT(rc >= 0);
 304         return -rc;
 305 }
 306
 307 static int
 308 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 309 {
 310         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 311
 312         sfc_log_init(sa, "entry");
 313
 314         sfc_adapter_lock(sa);
 315         sfc_stop(sa);
 316         sfc_adapter_unlock(sa);
 317
 318         return 0;
 319 }
 320
 321 static void
 322 sfc_dev_close(struct rte_eth_dev *dev)
 323 {
 324         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 325
 326         sfc_log_init(sa, "entry");
 327
 328         sfc_adapter_lock(sa);
 329         switch (sa->state) {
 330         case SFC_ADAPTER_STARTED:
 331                 sfc_stop(sa);
 332                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 333                 /* FALLTHROUGH */
 334         case SFC_ADAPTER_CONFIGURED:
 335                 sfc_close(sa);
 336                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 337                 /* FALLTHROUGH */
 338         case SFC_ADAPTER_INITIALIZED:
 339                 break;
 340         default:
 341                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 342                 break;
 343         }
 344
 345         /*
 346          * Cleanup all resources in accordance with RTE_ETH_DEV_CLOSE_REMOVE.
 347          * Rollback primary process sfc_eth_dev_init() below.
 348          */
 349
 350         sfc_eth_dev_clear_ops(dev);
 351
 352         sfc_detach(sa);
 353         sfc_unprobe(sa);
 354
 355         sfc_kvargs_cleanup(sa);
 356
 357         sfc_adapter_unlock(sa);
 358         sfc_adapter_lock_fini(sa);
 359
 360         sfc_log_init(sa, "done");
 361
 362         /* Required for logging, so cleanup last */
 363         sa->eth_dev = NULL;
 364
 365         dev->process_private = NULL;
 366         free(sa);
 367 }
 368
 369 static int
 370 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 371                    boolean_t enabled)
 372 {
 373         struct sfc_port *port;
 374         boolean_t *toggle;
 375         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 376         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 377         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 378         int rc = 0;
 379
 380         sfc_adapter_lock(sa);
 381
 382         port = &sa->port;
 383         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 384
 385         if (*toggle != enabled) {
 386                 *toggle = enabled;
 387
 388                 if (sfc_sa2shared(sa)->isolated) {
 389                         sfc_warn(sa, "isolated mode is active on the port");
 390                         sfc_warn(sa, "the change is to be applied on the next "
 391                                      "start provided that isolated mode is "
 392                                      "disabled prior the next start");
 393                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 394                            ((rc = sfc_set_rx_mode(sa)) != 0)) {
 395                         *toggle = !(enabled);
 396                         sfc_warn(sa, "Failed to %s %s mode",
 397                                  ((enabled) ? "enable" : "disable"), desc);
 398                 }
 399         }
 400
 401         sfc_adapter_unlock(sa);
 402         return rc;
 403 }
 404
 405 static int
 406 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 407 {
 408         return sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 409 }
 410
 411 static int
 412 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 413 {
 414         return sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 415 }
 416
 417 static int
 418 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 419 {
 420         return sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 421 }
 422
 423 static int
 424 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 425 {
 426         return sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 427 }
 428
 429 static int
 430 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 431                    uint16_t nb_rx_desc, unsigned int socket_id,
 432                    const struct rte_eth_rxconf *rx_conf,
 433                    struct rte_mempool *mb_pool)
 434 {
 435         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 436         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 437         int rc;
 438
 439         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 440                      rx_queue_id, nb_rx_desc, socket_id);
 441
 442         sfc_adapter_lock(sa);
 443
 444         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 445                           rx_conf, mb_pool);
 446         if (rc != 0)
 447                 goto fail_rx_qinit;
 448
 449         dev->data->rx_queues[rx_queue_id] = sas->rxq_info[rx_queue_id].dp;
 450
 451         sfc_adapter_unlock(sa);
 452
 453         return 0;
 454
 455 fail_rx_qinit:
 456         sfc_adapter_unlock(sa);
 457         SFC_ASSERT(rc > 0);
 458         return -rc;
 459 }
 460
 461 static void
 462 sfc_rx_queue_release(void *queue)
 463 {
 464         struct sfc_dp_rxq *dp_rxq = queue;
 465         struct sfc_rxq *rxq;
 466         struct sfc_adapter *sa;
 467         unsigned int sw_index;
 468
 469         if (dp_rxq == NULL)
 470                 return;
 471
 472         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 473         sa = rxq->evq->sa;
 474         sfc_adapter_lock(sa);
 475
 476         sw_index = dp_rxq->dpq.queue_id;
 477
 478         sfc_log_init(sa, "RxQ=%u", sw_index);
 479
 480         sfc_rx_qfini(sa, sw_index);
 481
 482         sfc_adapter_unlock(sa);
 483 }
 484
 485 static int
 486 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 487                    uint16_t nb_tx_desc, unsigned int socket_id,
 488                    const struct rte_eth_txconf *tx_conf)
 489 {
 490         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 491         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 492         int rc;
 493
 494         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 495                      tx_queue_id, nb_tx_desc, socket_id);
 496
 497         sfc_adapter_lock(sa);
 498
 499         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 500         if (rc != 0)
 501                 goto fail_tx_qinit;
 502
 503         dev->data->tx_queues[tx_queue_id] = sas->txq_info[tx_queue_id].dp;
 504
 505         sfc_adapter_unlock(sa);
 506         return 0;
 507
 508 fail_tx_qinit:
 509         sfc_adapter_unlock(sa);
 510         SFC_ASSERT(rc > 0);
 511         return -rc;
 512 }
 513
 514 static void
 515 sfc_tx_queue_release(void *queue)
 516 {
 517         struct sfc_dp_txq *dp_txq = queue;
 518         struct sfc_txq *txq;
 519         unsigned int sw_index;
 520         struct sfc_adapter *sa;
 521
 522         if (dp_txq == NULL)
 523                 return;
 524
 525         txq = sfc_txq_by_dp_txq(dp_txq);
 526         sw_index = dp_txq->dpq.queue_id;
 527
 528         SFC_ASSERT(txq->evq != NULL);
 529         sa = txq->evq->sa;
 530
 531         sfc_log_init(sa, "TxQ = %u", sw_index);
 532
 533         sfc_adapter_lock(sa);
 534
 535         sfc_tx_qfini(sa, sw_index);
 536
 537         sfc_adapter_unlock(sa);
 538 }
 539
 540 /*
 541  * Some statistics are computed as A - B where A and B each increase
 542  * monotonically with some hardware counter(s) and the counters are read
 543  * asynchronously.
 544  *
 545  * If packet X is counted in A, but not counted in B yet, computed value is
 546  * greater than real.
 547  *
 548  * If packet X is not counted in A at the moment of reading the counter,
 549  * but counted in B at the moment of reading the counter, computed value
 550  * is less than real.
 551  *
 552  * However, counter which grows backward is worse evil than slightly wrong
 553  * value. So, let's try to guarantee that it never happens except may be
 554  * the case when the MAC stats are zeroed as a result of a NIC reset.
 555  */
 556 static void
 557 sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
 558 {
 559         if ((int64_t)(newval - *stat) > 0 || newval == 0)
 560                 *stat = newval;
 561 }
 562
 563 static int
 564 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 565 {
 566         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 567         struct sfc_port *port = &sa->port;
 568         uint64_t *mac_stats;
 569         int ret;
 570
 571         rte_spinlock_lock(&port->mac_stats_lock);
 572
 573         ret = sfc_port_update_mac_stats(sa);
 574         if (ret != 0)
 575                 goto unlock;
 576
 577         mac_stats = port->mac_stats_buf;
 578
 579         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 580                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 581                 stats->ipackets =
 582                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 583                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 584                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 585                 stats->opackets =
 586                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 587                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 588                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 589                 stats->ibytes =
 590                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 591                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 592                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 593                 stats->obytes =
 594                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 595                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 596                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 597                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 598                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 599         } else {
 600                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 601                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 602                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 603                 /*
 604                  * Take into account stats which are whenever supported
 605                  * on EF10. If some stat is not supported by current
 606                  * firmware variant or HW revision, it is guaranteed
 607                  * to be zero in mac_stats.
 608                  */
 609                 stats->imissed =
 610                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 611                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 612                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 613                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 614                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 615                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 616                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 617                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 618                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 619                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 620                 stats->ierrors =
 621                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 622                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 623                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 624                 /* no oerrors counters supported on EF10 */
 625
 626                 /* Exclude missed, errors and pauses from Rx packets */
 627                 sfc_update_diff_stat(&port->ipackets,
 628                         mac_stats[EFX_MAC_RX_PKTS] -
 629                         mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
 630                         stats->imissed - stats->ierrors);
 631                 stats->ipackets = port->ipackets;
 632         }
 633
 634 unlock:
 635         rte_spinlock_unlock(&port->mac_stats_lock);
 636         SFC_ASSERT(ret >= 0);
 637         return -ret;
 638 }
 639
 640 static int
 641 sfc_stats_reset(struct rte_eth_dev *dev)
 642 {
 643         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 644         struct sfc_port *port = &sa->port;
 645         int rc;
 646
 647         if (sa->state != SFC_ADAPTER_STARTED) {
 648                 /*
 649                  * The operation cannot be done if port is not started; it
 650                  * will be scheduled to be done during the next port start
 651                  */
 652                 port->mac_stats_reset_pending = B_TRUE;
 653                 return 0;
 654         }
 655
 656         rc = sfc_port_reset_mac_stats(sa);
 657         if (rc != 0)
 658                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 659
 660         SFC_ASSERT(rc >= 0);
 661         return -rc;
 662 }
 663
 664 static int
 665 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 666                unsigned int xstats_count)
 667 {
 668         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 669         struct sfc_port *port = &sa->port;
 670         uint64_t *mac_stats;
 671         int rc;
 672         unsigned int i;
 673         int nstats = 0;
 674
 675         rte_spinlock_lock(&port->mac_stats_lock);
 676
 677         rc = sfc_port_update_mac_stats(sa);
 678         if (rc != 0) {
 679                 SFC_ASSERT(rc > 0);
 680                 nstats = -rc;
 681                 goto unlock;
 682         }
 683
 684         mac_stats = port->mac_stats_buf;
 685
 686         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 687                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 688                         if (xstats != NULL && nstats < (int)xstats_count) {
 689                                 xstats[nstats].id = nstats;
 690                                 xstats[nstats].value = mac_stats[i];
 691                         }
 692                         nstats++;
 693                 }
 694         }
 695
 696 unlock:
 697         rte_spinlock_unlock(&port->mac_stats_lock);
 698
 699         return nstats;
 700 }
 701
 702 static int
 703 sfc_xstats_get_names(struct rte_eth_dev *dev,
 704                      struct rte_eth_xstat_name *xstats_names,
 705                      unsigned int xstats_count)
 706 {
 707         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 708         struct sfc_port *port = &sa->port;
 709         unsigned int i;
 710         unsigned int nstats = 0;
 711
 712         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 713                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 714                         if (xstats_names != NULL && nstats < xstats_count)
 715                                 strlcpy(xstats_names[nstats].name,
 716                                         efx_mac_stat_name(sa->nic, i),
 717                                         sizeof(xstats_names[0].name));
 718                         nstats++;
 719                 }
 720         }
 721
 722         return nstats;
 723 }
 724
 725 static int
 726 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 727                      uint64_t *values, unsigned int n)
 728 {
 729         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 730         struct sfc_port *port = &sa->port;
 731         uint64_t *mac_stats;
 732         unsigned int nb_supported = 0;
 733         unsigned int nb_written = 0;
 734         unsigned int i;
 735         int ret;
 736         int rc;
 737
 738         if (unlikely(values == NULL) ||
 739             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 740                 return port->mac_stats_nb_supported;
 741
 742         rte_spinlock_lock(&port->mac_stats_lock);
 743
 744         rc = sfc_port_update_mac_stats(sa);
 745         if (rc != 0) {
 746                 SFC_ASSERT(rc > 0);
 747                 ret = -rc;
 748                 goto unlock;
 749         }
 750
 751         mac_stats = port->mac_stats_buf;
 752
 753         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 754                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 755                         continue;
 756
 757                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 758                         values[nb_written++] = mac_stats[i];
 759
 760                 ++nb_supported;
 761         }
 762
 763         ret = nb_written;
 764
 765 unlock:
 766         rte_spinlock_unlock(&port->mac_stats_lock);
 767
 768         return ret;
 769 }
 770
 771 static int
 772 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 773                            struct rte_eth_xstat_name *xstats_names,
 774                            const uint64_t *ids, unsigned int size)
 775 {
 776         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 777         struct sfc_port *port = &sa->port;
 778         unsigned int nb_supported = 0;
 779         unsigned int nb_written = 0;
 780         unsigned int i;
 781
 782         if (unlikely(xstats_names == NULL) ||
 783             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 784                 return port->mac_stats_nb_supported;
 785
 786         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 787                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 788                         continue;
 789
 790                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 791                         char *name = xstats_names[nb_written++].name;
 792
 793                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 794                                 sizeof(xstats_names[0].name));
 795                 }
 796
 797                 ++nb_supported;
 798         }
 799
 800         return nb_written;
 801 }
 802
 803 static int
 804 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 805 {
 806         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 807         unsigned int wanted_fc, link_fc;
 808
 809         memset(fc_conf, 0, sizeof(*fc_conf));
 810
 811         sfc_adapter_lock(sa);
 812
 813         if (sa->state == SFC_ADAPTER_STARTED)
 814                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 815         else
 816                 link_fc = sa->port.flow_ctrl;
 817
 818         switch (link_fc) {
 819         case 0:
 820                 fc_conf->mode = RTE_FC_NONE;
 821                 break;
 822         case EFX_FCNTL_RESPOND:
 823                 fc_conf->mode = RTE_FC_RX_PAUSE;
 824                 break;
 825         case EFX_FCNTL_GENERATE:
 826                 fc_conf->mode = RTE_FC_TX_PAUSE;
 827                 break;
 828         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 829                 fc_conf->mode = RTE_FC_FULL;
 830                 break;
 831         default:
 832                 sfc_err(sa, "%s: unexpected flow control value %#x",
 833                         __func__, link_fc);
 834         }
 835
 836         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 837
 838         sfc_adapter_unlock(sa);
 839
 840         return 0;
 841 }
 842
 843 static int
 844 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 845 {
 846         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 847         struct sfc_port *port = &sa->port;
 848         unsigned int fcntl;
 849         int rc;
 850
 851         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 852             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 853             fc_conf->mac_ctrl_frame_fwd != 0) {
 854                 sfc_err(sa, "unsupported flow control settings specified");
 855                 rc = EINVAL;
 856                 goto fail_inval;
 857         }
 858
 859         switch (fc_conf->mode) {
 860         case RTE_FC_NONE:
 861                 fcntl = 0;
 862                 break;
 863         case RTE_FC_RX_PAUSE:
 864                 fcntl = EFX_FCNTL_RESPOND;
 865                 break;
 866         case RTE_FC_TX_PAUSE:
 867                 fcntl = EFX_FCNTL_GENERATE;
 868                 break;
 869         case RTE_FC_FULL:
 870                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 871                 break;
 872         default:
 873                 rc = EINVAL;
 874                 goto fail_inval;
 875         }
 876
 877         sfc_adapter_lock(sa);
 878
 879         if (sa->state == SFC_ADAPTER_STARTED) {
 880                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 881                 if (rc != 0)
 882                         goto fail_mac_fcntl_set;
 883         }
 884
 885         port->flow_ctrl = fcntl;
 886         port->flow_ctrl_autoneg = fc_conf->autoneg;
 887
 888         sfc_adapter_unlock(sa);
 889
 890         return 0;
 891
 892 fail_mac_fcntl_set:
 893         sfc_adapter_unlock(sa);
 894 fail_inval:
 895         SFC_ASSERT(rc > 0);
 896         return -rc;
 897 }
 898
 899 static int
 900 sfc_check_scatter_on_all_rx_queues(struct sfc_adapter *sa, size_t pdu)
 901 {
 902         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
 903         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 904         boolean_t scatter_enabled;
 905         const char *error;
 906         unsigned int i;
 907
 908         for (i = 0; i < sas->rxq_count; i++) {
 909                 if ((sas->rxq_info[i].state & SFC_RXQ_INITIALIZED) == 0)
 910                         continue;
 911
 912                 scatter_enabled = (sas->rxq_info[i].type_flags &
 913                                    EFX_RXQ_FLAG_SCATTER);
 914
 915                 if (!sfc_rx_check_scatter(pdu, sa->rxq_ctrl[i].buf_size,
 916                                           encp->enc_rx_prefix_size,
 917                                           scatter_enabled, &error)) {
 918                         sfc_err(sa, "MTU check for RxQ %u failed: %s", i,
 919                                 error);
 920                         return EINVAL;
 921                 }
 922         }
 923
 924         return 0;
 925 }
 926
 927 static int
 928 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 929 {
 930         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 931         size_t pdu = EFX_MAC_PDU(mtu);
 932         size_t old_pdu;
 933         int rc;
 934
 935         sfc_log_init(sa, "mtu=%u", mtu);
 936
 937         rc = EINVAL;
 938         if (pdu < EFX_MAC_PDU_MIN) {
 939                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 940                         (unsigned int)mtu, (unsigned int)pdu,
 941                         EFX_MAC_PDU_MIN);
 942                 goto fail_inval;
 943         }
 944         if (pdu > EFX_MAC_PDU_MAX) {
 945                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 946                         (unsigned int)mtu, (unsigned int)pdu,
 947                         (unsigned int)EFX_MAC_PDU_MAX);
 948                 goto fail_inval;
 949         }
 950
 951         sfc_adapter_lock(sa);
 952
 953         rc = sfc_check_scatter_on_all_rx_queues(sa, pdu);
 954         if (rc != 0)
 955                 goto fail_check_scatter;
 956
 957         if (pdu != sa->port.pdu) {
 958                 if (sa->state == SFC_ADAPTER_STARTED) {
 959                         sfc_stop(sa);
 960
 961                         old_pdu = sa->port.pdu;
 962                         sa->port.pdu = pdu;
 963                         rc = sfc_start(sa);
 964                         if (rc != 0)
 965                                 goto fail_start;
 966                 } else {
 967                         sa->port.pdu = pdu;
 968                 }
 969         }
 970
 971         /*
 972          * The driver does not use it, but other PMDs update jumbo frame
 973          * flag and max_rx_pkt_len when MTU is set.
 974          */
 975         if (mtu > RTE_ETHER_MAX_LEN) {
 976                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 977                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 978         }
 979
 980         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 981
 982         sfc_adapter_unlock(sa);
 983
 984         sfc_log_init(sa, "done");
 985         return 0;
 986
 987 fail_start:
 988         sa->port.pdu = old_pdu;
 989         if (sfc_start(sa) != 0)
 990                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 991                         "PDU max size - port is stopped",
 992                         (unsigned int)pdu, (unsigned int)old_pdu);
 993
 994 fail_check_scatter:
 995         sfc_adapter_unlock(sa);
 996
 997 fail_inval:
 998         sfc_log_init(sa, "failed %d", rc);
 999         SFC_ASSERT(rc > 0);
1000         return -rc;
1001 }
1002 static int
1003 sfc_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1004 {
1005         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1006         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
1007         struct sfc_port *port = &sa->port;
1008         struct rte_ether_addr *old_addr = &dev->data->mac_addrs[0];
1009         int rc = 0;
1010
1011         sfc_adapter_lock(sa);
1012
1013         /*
1014          * Copy the address to the device private data so that
1015          * it could be recalled in the case of adapter restart.
1016          */
1017         rte_ether_addr_copy(mac_addr, &port->default_mac_addr);
1018
1019         /*
1020          * Neither of the two following checks can return
1021          * an error. The new MAC address is preserved in
1022          * the device private data and can be activated
1023          * on the next port start if the user prevents
1024          * isolated mode from being enabled.
1025          */
1026         if (sfc_sa2shared(sa)->isolated) {
1027                 sfc_warn(sa, "isolated mode is active on the port");
1028                 sfc_warn(sa, "will not set MAC address");
1029                 goto unlock;
1030         }
1031
1032         if (sa->state != SFC_ADAPTER_STARTED) {
1033                 sfc_notice(sa, "the port is not started");
1034                 sfc_notice(sa, "the new MAC address will be set on port start");
1035
1036                 goto unlock;
1037         }
1038
1039         if (encp->enc_allow_set_mac_with_installed_filters) {
1040                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
1041                 if (rc != 0) {
1042                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
1043                         goto unlock;
1044                 }
1045
1046                 /*
1047                  * Changing the MAC address by means of MCDI request
1048                  * has no effect on received traffic, therefore
1049                  * we also need to update unicast filters
1050                  */
1051                 rc = sfc_set_rx_mode(sa);
1052                 if (rc != 0) {
1053                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
1054                         /* Rollback the old address */
1055                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
1056                         (void)sfc_set_rx_mode(sa);
1057                 }
1058         } else {
1059                 sfc_warn(sa, "cannot set MAC address with filters installed");
1060                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
1061                 sfc_warn(sa, "(some traffic may be dropped)");
1062
1063                 /*
1064                  * Since setting MAC address with filters installed is not
1065                  * allowed on the adapter, the new MAC address will be set
1066                  * by means of adapter restart. sfc_start() shall retrieve
1067                  * the new address from the device private data and set it.
1068                  */
1069                 sfc_stop(sa);
1070                 rc = sfc_start(sa);
1071                 if (rc != 0)
1072                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1073         }
1074
1075 unlock:
1076         if (rc != 0)
1077                 rte_ether_addr_copy(old_addr, &port->default_mac_addr);
1078
1079         sfc_adapter_unlock(sa);
1080
1081         SFC_ASSERT(rc >= 0);
1082         return -rc;
1083 }
1084
1085
1086 static int
1087 sfc_set_mc_addr_list(struct rte_eth_dev *dev,
1088                 struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr)
1089 {
1090         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1091         struct sfc_port *port = &sa->port;
1092         uint8_t *mc_addrs = port->mcast_addrs;
1093         int rc;
1094         unsigned int i;
1095
1096         if (sfc_sa2shared(sa)->isolated) {
1097                 sfc_err(sa, "isolated mode is active on the port");
1098                 sfc_err(sa, "will not set multicast address list");
1099                 return -ENOTSUP;
1100         }
1101
1102         if (mc_addrs == NULL)
1103                 return -ENOBUFS;
1104
1105         if (nb_mc_addr > port->max_mcast_addrs) {
1106                 sfc_err(sa, "too many multicast addresses: %u > %u",
1107                          nb_mc_addr, port->max_mcast_addrs);
1108                 return -EINVAL;
1109         }
1110
1111         for (i = 0; i < nb_mc_addr; ++i) {
1112                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1113                                  EFX_MAC_ADDR_LEN);
1114                 mc_addrs += EFX_MAC_ADDR_LEN;
1115         }
1116
1117         port->nb_mcast_addrs = nb_mc_addr;
1118
1119         if (sa->state != SFC_ADAPTER_STARTED)
1120                 return 0;
1121
1122         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1123                                         port->nb_mcast_addrs);
1124         if (rc != 0)
1125                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1126
1127         SFC_ASSERT(rc >= 0);
1128         return -rc;
1129 }
1130
1131 /*
1132  * The function is used by the secondary process as well. It must not
1133  * use any process-local pointers from the adapter data.
1134  */
1135 static void
1136 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1137                       struct rte_eth_rxq_info *qinfo)
1138 {
1139         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1140         struct sfc_rxq_info *rxq_info;
1141
1142         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1143
1144         rxq_info = &sas->rxq_info[rx_queue_id];
1145
1146         qinfo->mp = rxq_info->refill_mb_pool;
1147         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1148         qinfo->conf.rx_drop_en = 1;
1149         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1150         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1151         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1152                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1153                 qinfo->scattered_rx = 1;
1154         }
1155         qinfo->nb_desc = rxq_info->entries;
1156 }
1157
1158 /*
1159  * The function is used by the secondary process as well. It must not
1160  * use any process-local pointers from the adapter data.
1161  */
1162 static void
1163 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1164                       struct rte_eth_txq_info *qinfo)
1165 {
1166         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1167         struct sfc_txq_info *txq_info;
1168
1169         SFC_ASSERT(tx_queue_id < sas->txq_count);
1170
1171         txq_info = &sas->txq_info[tx_queue_id];
1172
1173         memset(qinfo, 0, sizeof(*qinfo));
1174
1175         qinfo->conf.offloads = txq_info->offloads;
1176         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1177         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1178         qinfo->nb_desc = txq_info->entries;
1179 }
1180
1181 /*
1182  * The function is used by the secondary process as well. It must not
1183  * use any process-local pointers from the adapter data.
1184  */
1185 static uint32_t
1186 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1187 {
1188         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1189         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1190         struct sfc_rxq_info *rxq_info;
1191
1192         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1193         rxq_info = &sas->rxq_info[rx_queue_id];
1194
1195         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1196                 return 0;
1197
1198         return sap->dp_rx->qdesc_npending(rxq_info->dp);
1199 }
1200
1201 /*
1202  * The function is used by the secondary process as well. It must not
1203  * use any process-local pointers from the adapter data.
1204  */
1205 static int
1206 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1207 {
1208         struct sfc_dp_rxq *dp_rxq = queue;
1209         const struct sfc_dp_rx *dp_rx;
1210
1211         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1212
1213         return offset < dp_rx->qdesc_npending(dp_rxq);
1214 }
1215
1216 /*
1217  * The function is used by the secondary process as well. It must not
1218  * use any process-local pointers from the adapter data.
1219  */
1220 static int
1221 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1222 {
1223         struct sfc_dp_rxq *dp_rxq = queue;
1224         const struct sfc_dp_rx *dp_rx;
1225
1226         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1227
1228         return dp_rx->qdesc_status(dp_rxq, offset);
1229 }
1230
1231 /*
1232  * The function is used by the secondary process as well. It must not
1233  * use any process-local pointers from the adapter data.
1234  */
1235 static int
1236 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1237 {
1238         struct sfc_dp_txq *dp_txq = queue;
1239         const struct sfc_dp_tx *dp_tx;
1240
1241         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1242
1243         return dp_tx->qdesc_status(dp_txq, offset);
1244 }
1245
1246 static int
1247 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1248 {
1249         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1250         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1251         int rc;
1252
1253         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1254
1255         sfc_adapter_lock(sa);
1256
1257         rc = EINVAL;
1258         if (sa->state != SFC_ADAPTER_STARTED)
1259                 goto fail_not_started;
1260
1261         if (sas->rxq_info[rx_queue_id].state != SFC_RXQ_INITIALIZED)
1262                 goto fail_not_setup;
1263
1264         rc = sfc_rx_qstart(sa, rx_queue_id);
1265         if (rc != 0)
1266                 goto fail_rx_qstart;
1267
1268         sas->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1269
1270         sfc_adapter_unlock(sa);
1271
1272         return 0;
1273
1274 fail_rx_qstart:
1275 fail_not_setup:
1276 fail_not_started:
1277         sfc_adapter_unlock(sa);
1278         SFC_ASSERT(rc > 0);
1279         return -rc;
1280 }
1281
1282 static int
1283 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1284 {
1285         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1286         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1287
1288         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1289
1290         sfc_adapter_lock(sa);
1291         sfc_rx_qstop(sa, rx_queue_id);
1292
1293         sas->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1294
1295         sfc_adapter_unlock(sa);
1296
1297         return 0;
1298 }
1299
1300 static int
1301 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1302 {
1303         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1304         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1305         int rc;
1306
1307         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1308
1309         sfc_adapter_lock(sa);
1310
1311         rc = EINVAL;
1312         if (sa->state != SFC_ADAPTER_STARTED)
1313                 goto fail_not_started;
1314
1315         if (sas->txq_info[tx_queue_id].state != SFC_TXQ_INITIALIZED)
1316                 goto fail_not_setup;
1317
1318         rc = sfc_tx_qstart(sa, tx_queue_id);
1319         if (rc != 0)
1320                 goto fail_tx_qstart;
1321
1322         sas->txq_info[tx_queue_id].deferred_started = B_TRUE;
1323
1324         sfc_adapter_unlock(sa);
1325         return 0;
1326
1327 fail_tx_qstart:
1328
1329 fail_not_setup:
1330 fail_not_started:
1331         sfc_adapter_unlock(sa);
1332         SFC_ASSERT(rc > 0);
1333         return -rc;
1334 }
1335
1336 static int
1337 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1338 {
1339         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1340         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1341
1342         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1343
1344         sfc_adapter_lock(sa);
1345
1346         sfc_tx_qstop(sa, tx_queue_id);
1347
1348         sas->txq_info[tx_queue_id].deferred_started = B_FALSE;
1349
1350         sfc_adapter_unlock(sa);
1351         return 0;
1352 }
1353
1354 static efx_tunnel_protocol_t
1355 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1356 {
1357         switch (rte_type) {
1358         case RTE_TUNNEL_TYPE_VXLAN:
1359                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1360         case RTE_TUNNEL_TYPE_GENEVE:
1361                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1362         default:
1363                 return EFX_TUNNEL_NPROTOS;
1364         }
1365 }
1366
1367 enum sfc_udp_tunnel_op_e {
1368         SFC_UDP_TUNNEL_ADD_PORT,
1369         SFC_UDP_TUNNEL_DEL_PORT,
1370 };
1371
1372 static int
1373 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1374                       struct rte_eth_udp_tunnel *tunnel_udp,
1375                       enum sfc_udp_tunnel_op_e op)
1376 {
1377         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1378         efx_tunnel_protocol_t tunnel_proto;
1379         int rc;
1380
1381         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1382                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1383                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1384                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1385
1386         tunnel_proto =
1387                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1388         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1389                 rc = ENOTSUP;
1390                 goto fail_bad_proto;
1391         }
1392
1393         sfc_adapter_lock(sa);
1394
1395         switch (op) {
1396         case SFC_UDP_TUNNEL_ADD_PORT:
1397                 rc = efx_tunnel_config_udp_add(sa->nic,
1398                                                tunnel_udp->udp_port,
1399                                                tunnel_proto);
1400                 break;
1401         case SFC_UDP_TUNNEL_DEL_PORT:
1402                 rc = efx_tunnel_config_udp_remove(sa->nic,
1403                                                   tunnel_udp->udp_port,
1404                                                   tunnel_proto);
1405                 break;
1406         default:
1407                 rc = EINVAL;
1408                 goto fail_bad_op;
1409         }
1410
1411         if (rc != 0)
1412                 goto fail_op;
1413
1414         if (sa->state == SFC_ADAPTER_STARTED) {
1415                 rc = efx_tunnel_reconfigure(sa->nic);
1416                 if (rc == EAGAIN) {
1417                         /*
1418                          * Configuration is accepted by FW and MC reboot
1419                          * is initiated to apply the changes. MC reboot
1420                          * will be handled in a usual way (MC reboot
1421                          * event on management event queue and adapter
1422                          * restart).
1423                          */
1424                         rc = 0;
1425                 } else if (rc != 0) {
1426                         goto fail_reconfigure;
1427                 }
1428         }
1429
1430         sfc_adapter_unlock(sa);
1431         return 0;
1432
1433 fail_reconfigure:
1434         /* Remove/restore entry since the change makes the trouble */
1435         switch (op) {
1436         case SFC_UDP_TUNNEL_ADD_PORT:
1437                 (void)efx_tunnel_config_udp_remove(sa->nic,
1438                                                    tunnel_udp->udp_port,
1439                                                    tunnel_proto);
1440                 break;
1441         case SFC_UDP_TUNNEL_DEL_PORT:
1442                 (void)efx_tunnel_config_udp_add(sa->nic,
1443                                                 tunnel_udp->udp_port,
1444                                                 tunnel_proto);
1445                 break;
1446         }
1447
1448 fail_op:
1449 fail_bad_op:
1450         sfc_adapter_unlock(sa);
1451
1452 fail_bad_proto:
1453         SFC_ASSERT(rc > 0);
1454         return -rc;
1455 }
1456
1457 static int
1458 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1459                             struct rte_eth_udp_tunnel *tunnel_udp)
1460 {
1461         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1462 }
1463
1464 static int
1465 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1466                             struct rte_eth_udp_tunnel *tunnel_udp)
1467 {
1468         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1469 }
1470
1471 /*
1472  * The function is used by the secondary process as well. It must not
1473  * use any process-local pointers from the adapter data.
1474  */
1475 static int
1476 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1477                           struct rte_eth_rss_conf *rss_conf)
1478 {
1479         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1480         struct sfc_rss *rss = &sas->rss;
1481
1482         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1483                 return -ENOTSUP;
1484
1485         /*
1486          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1487          * hence, conversion is done here to derive a correct set of ETH_RSS
1488          * flags which corresponds to the active EFX configuration stored
1489          * locally in 'sfc_adapter' and kept up-to-date
1490          */
1491         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(rss, rss->hash_types);
1492         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1493         if (rss_conf->rss_key != NULL)
1494                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1495
1496         return 0;
1497 }
1498
1499 static int
1500 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1501                         struct rte_eth_rss_conf *rss_conf)
1502 {
1503         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1504         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1505         unsigned int efx_hash_types;
1506         int rc = 0;
1507
1508         if (sfc_sa2shared(sa)->isolated)
1509                 return -ENOTSUP;
1510
1511         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1512                 sfc_err(sa, "RSS is not available");
1513                 return -ENOTSUP;
1514         }
1515
1516         if (rss->channels == 0) {
1517                 sfc_err(sa, "RSS is not configured");
1518                 return -EINVAL;
1519         }
1520
1521         if ((rss_conf->rss_key != NULL) &&
1522             (rss_conf->rss_key_len != sizeof(rss->key))) {
1523                 sfc_err(sa, "RSS key size is wrong (should be %zu)",
1524                         sizeof(rss->key));
1525                 return -EINVAL;
1526         }
1527
1528         sfc_adapter_lock(sa);
1529
1530         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1531         if (rc != 0)
1532                 goto fail_rx_hf_rte_to_efx;
1533
1534         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1535                                    rss->hash_alg, efx_hash_types, B_TRUE);
1536         if (rc != 0)
1537                 goto fail_scale_mode_set;
1538
1539         if (rss_conf->rss_key != NULL) {
1540                 if (sa->state == SFC_ADAPTER_STARTED) {
1541                         rc = efx_rx_scale_key_set(sa->nic,
1542                                                   EFX_RSS_CONTEXT_DEFAULT,
1543                                                   rss_conf->rss_key,
1544                                                   sizeof(rss->key));
1545                         if (rc != 0)
1546                                 goto fail_scale_key_set;
1547                 }
1548
1549                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1550         }
1551
1552         rss->hash_types = efx_hash_types;
1553
1554         sfc_adapter_unlock(sa);
1555
1556         return 0;
1557
1558 fail_scale_key_set:
1559         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1560                                   EFX_RX_HASHALG_TOEPLITZ,
1561                                   rss->hash_types, B_TRUE) != 0)
1562                 sfc_err(sa, "failed to restore RSS mode");
1563
1564 fail_scale_mode_set:
1565 fail_rx_hf_rte_to_efx:
1566         sfc_adapter_unlock(sa);
1567         return -rc;
1568 }
1569
1570 /*
1571  * The function is used by the secondary process as well. It must not
1572  * use any process-local pointers from the adapter data.
1573  */
1574 static int
1575 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1576                        struct rte_eth_rss_reta_entry64 *reta_conf,
1577                        uint16_t reta_size)
1578 {
1579         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1580         struct sfc_rss *rss = &sas->rss;
1581         int entry;
1582
1583         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || sas->isolated)
1584                 return -ENOTSUP;
1585
1586         if (rss->channels == 0)
1587                 return -EINVAL;
1588
1589         if (reta_size != EFX_RSS_TBL_SIZE)
1590                 return -EINVAL;
1591
1592         for (entry = 0; entry < reta_size; entry++) {
1593                 int grp = entry / RTE_RETA_GROUP_SIZE;
1594                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1595
1596                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1597                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1598         }
1599
1600         return 0;
1601 }
1602
1603 static int
1604 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1605                         struct rte_eth_rss_reta_entry64 *reta_conf,
1606                         uint16_t reta_size)
1607 {
1608         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1609         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1610         unsigned int *rss_tbl_new;
1611         uint16_t entry;
1612         int rc = 0;
1613
1614
1615         if (sfc_sa2shared(sa)->isolated)
1616                 return -ENOTSUP;
1617
1618         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1619                 sfc_err(sa, "RSS is not available");
1620                 return -ENOTSUP;
1621         }
1622
1623         if (rss->channels == 0) {
1624                 sfc_err(sa, "RSS is not configured");
1625                 return -EINVAL;
1626         }
1627
1628         if (reta_size != EFX_RSS_TBL_SIZE) {
1629                 sfc_err(sa, "RETA size is wrong (should be %u)",
1630                         EFX_RSS_TBL_SIZE);
1631                 return -EINVAL;
1632         }
1633
1634         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1635         if (rss_tbl_new == NULL)
1636                 return -ENOMEM;
1637
1638         sfc_adapter_lock(sa);
1639
1640         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1641
1642         for (entry = 0; entry < reta_size; entry++) {
1643                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1644                 struct rte_eth_rss_reta_entry64 *grp;
1645
1646                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1647
1648                 if (grp->mask & (1ull << grp_idx)) {
1649                         if (grp->reta[grp_idx] >= rss->channels) {
1650                                 rc = EINVAL;
1651                                 goto bad_reta_entry;
1652                         }
1653                         rss_tbl_new[entry] = grp->reta[grp_idx];
1654                 }
1655         }
1656
1657         if (sa->state == SFC_ADAPTER_STARTED) {
1658                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1659                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1660                 if (rc != 0)
1661                         goto fail_scale_tbl_set;
1662         }
1663
1664         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1665
1666 fail_scale_tbl_set:
1667 bad_reta_entry:
1668         sfc_adapter_unlock(sa);
1669
1670         rte_free(rss_tbl_new);
1671
1672         SFC_ASSERT(rc >= 0);
1673         return -rc;
1674 }
1675
1676 static int
1677 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1678                     enum rte_filter_op filter_op,
1679                     void *arg)
1680 {
1681         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1682         int rc = ENOTSUP;
1683
1684         sfc_log_init(sa, "entry");
1685
1686         switch (filter_type) {
1687         case RTE_ETH_FILTER_NONE:
1688                 sfc_err(sa, "Global filters configuration not supported");
1689                 break;
1690         case RTE_ETH_FILTER_MACVLAN:
1691                 sfc_err(sa, "MACVLAN filters not supported");
1692                 break;
1693         case RTE_ETH_FILTER_ETHERTYPE:
1694                 sfc_err(sa, "EtherType filters not supported");
1695                 break;
1696         case RTE_ETH_FILTER_FLEXIBLE:
1697                 sfc_err(sa, "Flexible filters not supported");
1698                 break;
1699         case RTE_ETH_FILTER_SYN:
1700                 sfc_err(sa, "SYN filters not supported");
1701                 break;
1702         case RTE_ETH_FILTER_NTUPLE:
1703                 sfc_err(sa, "NTUPLE filters not supported");
1704                 break;
1705         case RTE_ETH_FILTER_TUNNEL:
1706                 sfc_err(sa, "Tunnel filters not supported");
1707                 break;
1708         case RTE_ETH_FILTER_FDIR:
1709                 sfc_err(sa, "Flow Director filters not supported");
1710                 break;
1711         case RTE_ETH_FILTER_HASH:
1712                 sfc_err(sa, "Hash filters not supported");
1713                 break;
1714         case RTE_ETH_FILTER_GENERIC:
1715                 if (filter_op != RTE_ETH_FILTER_GET) {
1716                         rc = EINVAL;
1717                 } else {
1718                         *(const void **)arg = &sfc_flow_ops;
1719                         rc = 0;
1720                 }
1721                 break;
1722         default:
1723                 sfc_err(sa, "Unknown filter type %u", filter_type);
1724                 break;
1725         }
1726
1727         sfc_log_init(sa, "exit: %d", -rc);
1728         SFC_ASSERT(rc >= 0);
1729         return -rc;
1730 }
1731
1732 static int
1733 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1734 {
1735         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1736
1737         /*
1738          * If Rx datapath does not provide callback to check mempool,
1739          * all pools are supported.
1740          */
1741         if (sap->dp_rx->pool_ops_supported == NULL)
1742                 return 1;
1743
1744         return sap->dp_rx->pool_ops_supported(pool);
1745 }
1746
1747 static int
1748 sfc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
1749 {
1750         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1751         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1752         struct sfc_rxq_info *rxq_info;
1753
1754         SFC_ASSERT(queue_id < sas->rxq_count);
1755         rxq_info = &sas->rxq_info[queue_id];
1756
1757         return sap->dp_rx->intr_enable(rxq_info->dp);
1758 }
1759
1760 static int
1761 sfc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
1762 {
1763         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1764         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1765         struct sfc_rxq_info *rxq_info;
1766
1767         SFC_ASSERT(queue_id < sas->rxq_count);
1768         rxq_info = &sas->rxq_info[queue_id];
1769
1770         return sap->dp_rx->intr_disable(rxq_info->dp);
1771 }
1772
1773 static const struct eth_dev_ops sfc_eth_dev_ops = {
1774         .dev_configure                  = sfc_dev_configure,
1775         .dev_start                      = sfc_dev_start,
1776         .dev_stop                       = sfc_dev_stop,
1777         .dev_set_link_up                = sfc_dev_set_link_up,
1778         .dev_set_link_down              = sfc_dev_set_link_down,
1779         .dev_close                      = sfc_dev_close,
1780         .promiscuous_enable             = sfc_dev_promisc_enable,
1781         .promiscuous_disable            = sfc_dev_promisc_disable,
1782         .allmulticast_enable            = sfc_dev_allmulti_enable,
1783         .allmulticast_disable           = sfc_dev_allmulti_disable,
1784         .link_update                    = sfc_dev_link_update,
1785         .stats_get                      = sfc_stats_get,
1786         .stats_reset                    = sfc_stats_reset,
1787         .xstats_get                     = sfc_xstats_get,
1788         .xstats_reset                   = sfc_stats_reset,
1789         .xstats_get_names               = sfc_xstats_get_names,
1790         .dev_infos_get                  = sfc_dev_infos_get,
1791         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1792         .mtu_set                        = sfc_dev_set_mtu,
1793         .rx_queue_start                 = sfc_rx_queue_start,
1794         .rx_queue_stop                  = sfc_rx_queue_stop,
1795         .tx_queue_start                 = sfc_tx_queue_start,
1796         .tx_queue_stop                  = sfc_tx_queue_stop,
1797         .rx_queue_setup                 = sfc_rx_queue_setup,
1798         .rx_queue_release               = sfc_rx_queue_release,
1799         .rx_queue_count                 = sfc_rx_queue_count,
1800         .rx_descriptor_done             = sfc_rx_descriptor_done,
1801         .rx_descriptor_status           = sfc_rx_descriptor_status,
1802         .tx_descriptor_status           = sfc_tx_descriptor_status,
1803         .rx_queue_intr_enable           = sfc_rx_queue_intr_enable,
1804         .rx_queue_intr_disable          = sfc_rx_queue_intr_disable,
1805         .tx_queue_setup                 = sfc_tx_queue_setup,
1806         .tx_queue_release               = sfc_tx_queue_release,
1807         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1808         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1809         .mac_addr_set                   = sfc_mac_addr_set,
1810         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1811         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1812         .reta_update                    = sfc_dev_rss_reta_update,
1813         .reta_query                     = sfc_dev_rss_reta_query,
1814         .rss_hash_update                = sfc_dev_rss_hash_update,
1815         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1816         .filter_ctrl                    = sfc_dev_filter_ctrl,
1817         .set_mc_addr_list               = sfc_set_mc_addr_list,
1818         .rxq_info_get                   = sfc_rx_queue_info_get,
1819         .txq_info_get                   = sfc_tx_queue_info_get,
1820         .fw_version_get                 = sfc_fw_version_get,
1821         .xstats_get_by_id               = sfc_xstats_get_by_id,
1822         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1823         .pool_ops_supported             = sfc_pool_ops_supported,
1824 };
1825
1826 /**
1827  * Duplicate a string in potentially shared memory required for
1828  * multi-process support.
1829  *
1830  * strdup() allocates from process-local heap/memory.
1831  */
1832 static char *
1833 sfc_strdup(const char *str)
1834 {
1835         size_t size;
1836         char *copy;
1837
1838         if (str == NULL)
1839                 return NULL;
1840
1841         size = strlen(str) + 1;
1842         copy = rte_malloc(__func__, size, 0);
1843         if (copy != NULL)
1844                 rte_memcpy(copy, str, size);
1845
1846         return copy;
1847 }
1848
1849 static int
1850 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1851 {
1852         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1853         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1854         const struct sfc_dp_rx *dp_rx;
1855         const struct sfc_dp_tx *dp_tx;
1856         const efx_nic_cfg_t *encp;
1857         unsigned int avail_caps = 0;
1858         const char *rx_name = NULL;
1859         const char *tx_name = NULL;
1860         int rc;
1861
1862         switch (sa->family) {
1863         case EFX_FAMILY_HUNTINGTON:
1864         case EFX_FAMILY_MEDFORD:
1865         case EFX_FAMILY_MEDFORD2:
1866                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1867                 break;
1868         default:
1869                 break;
1870         }
1871
1872         encp = efx_nic_cfg_get(sa->nic);
1873         if (encp->enc_rx_es_super_buffer_supported)
1874                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1875
1876         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1877                                 sfc_kvarg_string_handler, &rx_name);
1878         if (rc != 0)
1879                 goto fail_kvarg_rx_datapath;
1880
1881         if (rx_name != NULL) {
1882                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1883                 if (dp_rx == NULL) {
1884                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1885                         rc = ENOENT;
1886                         goto fail_dp_rx;
1887                 }
1888                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
1889                         sfc_err(sa,
1890                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1891                                 rx_name);
1892                         rc = EINVAL;
1893                         goto fail_dp_rx_caps;
1894                 }
1895         } else {
1896                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1897                 if (dp_rx == NULL) {
1898                         sfc_err(sa, "Rx datapath by caps %#x not found",
1899                                 avail_caps);
1900                         rc = ENOENT;
1901                         goto fail_dp_rx;
1902                 }
1903         }
1904
1905         sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
1906         if (sas->dp_rx_name == NULL) {
1907                 rc = ENOMEM;
1908                 goto fail_dp_rx_name;
1909         }
1910
1911         sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
1912
1913         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1914                                 sfc_kvarg_string_handler, &tx_name);
1915         if (rc != 0)
1916                 goto fail_kvarg_tx_datapath;
1917
1918         if (tx_name != NULL) {
1919                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1920                 if (dp_tx == NULL) {
1921                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1922                         rc = ENOENT;
1923                         goto fail_dp_tx;
1924                 }
1925                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
1926                         sfc_err(sa,
1927                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1928                                 tx_name);
1929                         rc = EINVAL;
1930                         goto fail_dp_tx_caps;
1931                 }
1932         } else {
1933                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1934                 if (dp_tx == NULL) {
1935                         sfc_err(sa, "Tx datapath by caps %#x not found",
1936                                 avail_caps);
1937                         rc = ENOENT;
1938                         goto fail_dp_tx;
1939                 }
1940         }
1941
1942         sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
1943         if (sas->dp_tx_name == NULL) {
1944                 rc = ENOMEM;
1945                 goto fail_dp_tx_name;
1946         }
1947
1948         sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
1949
1950         sa->priv.dp_rx = dp_rx;
1951         sa->priv.dp_tx = dp_tx;
1952
1953         dev->rx_pkt_burst = dp_rx->pkt_burst;
1954         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
1955         dev->tx_pkt_burst = dp_tx->pkt_burst;
1956
1957         dev->dev_ops = &sfc_eth_dev_ops;
1958
1959         return 0;
1960
1961 fail_dp_tx_name:
1962 fail_dp_tx_caps:
1963 fail_dp_tx:
1964 fail_kvarg_tx_datapath:
1965         rte_free(sas->dp_rx_name);
1966         sas->dp_rx_name = NULL;
1967
1968 fail_dp_rx_name:
1969 fail_dp_rx_caps:
1970 fail_dp_rx:
1971 fail_kvarg_rx_datapath:
1972         return rc;
1973 }
1974
1975 static void
1976 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1977 {
1978         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1979         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1980
1981         dev->dev_ops = NULL;
1982         dev->tx_pkt_prepare = NULL;
1983         dev->rx_pkt_burst = NULL;
1984         dev->tx_pkt_burst = NULL;
1985
1986         rte_free(sas->dp_tx_name);
1987         sas->dp_tx_name = NULL;
1988         sa->priv.dp_tx = NULL;
1989
1990         rte_free(sas->dp_rx_name);
1991         sas->dp_rx_name = NULL;
1992         sa->priv.dp_rx = NULL;
1993 }
1994
1995 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1996         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1997         .rx_queue_count                 = sfc_rx_queue_count,
1998         .rx_descriptor_done             = sfc_rx_descriptor_done,
1999         .rx_descriptor_status           = sfc_rx_descriptor_status,
2000         .tx_descriptor_status           = sfc_tx_descriptor_status,
2001         .reta_query                     = sfc_dev_rss_reta_query,
2002         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
2003         .rxq_info_get                   = sfc_rx_queue_info_get,
2004         .txq_info_get                   = sfc_tx_queue_info_get,
2005 };
2006
2007 static int
2008 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
2009 {
2010         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2011         struct sfc_adapter_priv *sap;
2012         const struct sfc_dp_rx *dp_rx;
2013         const struct sfc_dp_tx *dp_tx;
2014         int rc;
2015
2016         /*
2017          * Allocate process private data from heap, since it should not
2018          * be located in shared memory allocated using rte_malloc() API.
2019          */
2020         sap = calloc(1, sizeof(*sap));
2021         if (sap == NULL) {
2022                 rc = ENOMEM;
2023                 goto fail_alloc_priv;
2024         }
2025
2026         sap->logtype_main = logtype_main;
2027
2028         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
2029         if (dp_rx == NULL) {
2030                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2031                         "cannot find %s Rx datapath", sas->dp_rx_name);
2032                 rc = ENOENT;
2033                 goto fail_dp_rx;
2034         }
2035         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
2036                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2037                         "%s Rx datapath does not support multi-process",
2038                         sas->dp_rx_name);
2039                 rc = EINVAL;
2040                 goto fail_dp_rx_multi_process;
2041         }
2042
2043         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
2044         if (dp_tx == NULL) {
2045                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2046                         "cannot find %s Tx datapath", sas->dp_tx_name);
2047                 rc = ENOENT;
2048                 goto fail_dp_tx;
2049         }
2050         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
2051                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2052                         "%s Tx datapath does not support multi-process",
2053                         sas->dp_tx_name);
2054                 rc = EINVAL;
2055                 goto fail_dp_tx_multi_process;
2056         }
2057
2058         sap->dp_rx = dp_rx;
2059         sap->dp_tx = dp_tx;
2060
2061         dev->process_private = sap;
2062         dev->rx_pkt_burst = dp_rx->pkt_burst;
2063         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2064         dev->tx_pkt_burst = dp_tx->pkt_burst;
2065         dev->dev_ops = &sfc_eth_dev_secondary_ops;
2066
2067         return 0;
2068
2069 fail_dp_tx_multi_process:
2070 fail_dp_tx:
2071 fail_dp_rx_multi_process:
2072 fail_dp_rx:
2073         free(sap);
2074
2075 fail_alloc_priv:
2076         return rc;
2077 }
2078
2079 static void
2080 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
2081 {
2082         free(dev->process_private);
2083         dev->process_private = NULL;
2084         dev->dev_ops = NULL;
2085         dev->tx_pkt_prepare = NULL;
2086         dev->tx_pkt_burst = NULL;
2087         dev->rx_pkt_burst = NULL;
2088 }
2089
2090 static void
2091 sfc_register_dp(void)
2092 {
2093         /* Register once */
2094         if (TAILQ_EMPTY(&sfc_dp_head)) {
2095                 /* Prefer EF10 datapath */
2096                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2097                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2098                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2099
2100                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2101                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2102                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2103         }
2104 }
2105
2106 static int
2107 sfc_eth_dev_init(struct rte_eth_dev *dev)
2108 {
2109         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2110         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2111         uint32_t logtype_main;
2112         struct sfc_adapter *sa;
2113         int rc;
2114         const efx_nic_cfg_t *encp;
2115         const struct rte_ether_addr *from;
2116
2117         sfc_register_dp();
2118
2119         logtype_main = sfc_register_logtype(&pci_dev->addr,
2120                                             SFC_LOGTYPE_MAIN_STR,
2121                                             RTE_LOG_NOTICE);
2122
2123         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2124                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2125
2126         /* Required for logging */
2127         sas->pci_addr = pci_dev->addr;
2128         sas->port_id = dev->data->port_id;
2129
2130         /*
2131          * Allocate process private data from heap, since it should not
2132          * be located in shared memory allocated using rte_malloc() API.
2133          */
2134         sa = calloc(1, sizeof(*sa));
2135         if (sa == NULL) {
2136                 rc = ENOMEM;
2137                 goto fail_alloc_sa;
2138         }
2139
2140         dev->process_private = sa;
2141
2142         /* Required for logging */
2143         sa->priv.shared = sas;
2144         sa->priv.logtype_main = logtype_main;
2145
2146         sa->eth_dev = dev;
2147
2148         /* Copy PCI device info to the dev->data */
2149         rte_eth_copy_pci_info(dev, pci_dev);
2150
2151         rc = sfc_kvargs_parse(sa);
2152         if (rc != 0)
2153                 goto fail_kvargs_parse;
2154
2155         sfc_log_init(sa, "entry");
2156
2157         dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
2158
2159         dev->data->mac_addrs = rte_zmalloc("sfc", RTE_ETHER_ADDR_LEN, 0);
2160         if (dev->data->mac_addrs == NULL) {
2161                 rc = ENOMEM;
2162                 goto fail_mac_addrs;
2163         }
2164
2165         sfc_adapter_lock_init(sa);
2166         sfc_adapter_lock(sa);
2167
2168         sfc_log_init(sa, "probing");
2169         rc = sfc_probe(sa);
2170         if (rc != 0)
2171                 goto fail_probe;
2172
2173         sfc_log_init(sa, "set device ops");
2174         rc = sfc_eth_dev_set_ops(dev);
2175         if (rc != 0)
2176                 goto fail_set_ops;
2177
2178         sfc_log_init(sa, "attaching");
2179         rc = sfc_attach(sa);
2180         if (rc != 0)
2181                 goto fail_attach;
2182
2183         encp = efx_nic_cfg_get(sa->nic);
2184
2185         /*
2186          * The arguments are really reverse order in comparison to
2187          * Linux kernel. Copy from NIC config to Ethernet device data.
2188          */
2189         from = (const struct rte_ether_addr *)(encp->enc_mac_addr);
2190         rte_ether_addr_copy(from, &dev->data->mac_addrs[0]);
2191
2192         sfc_adapter_unlock(sa);
2193
2194         sfc_log_init(sa, "done");
2195         return 0;
2196
2197 fail_attach:
2198         sfc_eth_dev_clear_ops(dev);
2199
2200 fail_set_ops:
2201         sfc_unprobe(sa);
2202
2203 fail_probe:
2204         sfc_adapter_unlock(sa);
2205         sfc_adapter_lock_fini(sa);
2206         rte_free(dev->data->mac_addrs);
2207         dev->data->mac_addrs = NULL;
2208
2209 fail_mac_addrs:
2210         sfc_kvargs_cleanup(sa);
2211
2212 fail_kvargs_parse:
2213         sfc_log_init(sa, "failed %d", rc);
2214         dev->process_private = NULL;
2215         free(sa);
2216
2217 fail_alloc_sa:
2218         SFC_ASSERT(rc > 0);
2219         return -rc;
2220 }
2221
2222 static int
2223 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2224 {
2225         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2226                 sfc_eth_dev_secondary_clear_ops(dev);
2227                 return 0;
2228         }
2229
2230         sfc_dev_close(dev);
2231
2232         return 0;
2233 }
2234
2235 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2236         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2237         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2238         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2239         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2240         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2241         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2242         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2243         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2244         { .vendor_id = 0 /* sentinel */ }
2245 };
2246
2247 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2248         struct rte_pci_device *pci_dev)
2249 {
2250         return rte_eth_dev_pci_generic_probe(pci_dev,
2251                 sizeof(struct sfc_adapter_shared), sfc_eth_dev_init);
2252 }
2253
2254 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2255 {
2256         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2257 }
2258
2259 static struct rte_pci_driver sfc_efx_pmd = {
2260         .id_table = pci_id_sfc_efx_map,
2261         .drv_flags =
2262                 RTE_PCI_DRV_INTR_LSC |
2263                 RTE_PCI_DRV_NEED_MAPPING,
2264         .probe = sfc_eth_dev_pci_probe,
2265         .remove = sfc_eth_dev_pci_remove,
2266 };
2267
2268 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2269 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2270 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2271 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2272         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2273         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2274         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2275         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2276         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2277         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2278
2279 RTE_INIT(sfc_driver_register_logtype)
2280 {
2281         int ret;
2282
2283         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2284                                                    RTE_LOG_NOTICE);
2285         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2286 }