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         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 409
 410         SFC_ASSERT(rc >= 0);
 411         return -rc;
 412 }
 413
 414 static int
 415 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 416 {
 417         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 418
 419         SFC_ASSERT(rc >= 0);
 420         return -rc;
 421 }
 422
 423 static int
 424 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 425 {
 426         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 427
 428         SFC_ASSERT(rc >= 0);
 429         return -rc;
 430 }
 431
 432 static int
 433 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 434 {
 435         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 436
 437         SFC_ASSERT(rc >= 0);
 438         return -rc;
 439 }
 440
 441 static int
 442 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 443                    uint16_t nb_rx_desc, unsigned int socket_id,
 444                    const struct rte_eth_rxconf *rx_conf,
 445                    struct rte_mempool *mb_pool)
 446 {
 447         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 448         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 449         int rc;
 450
 451         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 452                      rx_queue_id, nb_rx_desc, socket_id);
 453
 454         sfc_adapter_lock(sa);
 455
 456         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 457                           rx_conf, mb_pool);
 458         if (rc != 0)
 459                 goto fail_rx_qinit;
 460
 461         dev->data->rx_queues[rx_queue_id] = sas->rxq_info[rx_queue_id].dp;
 462
 463         sfc_adapter_unlock(sa);
 464
 465         return 0;
 466
 467 fail_rx_qinit:
 468         sfc_adapter_unlock(sa);
 469         SFC_ASSERT(rc > 0);
 470         return -rc;
 471 }
 472
 473 static void
 474 sfc_rx_queue_release(void *queue)
 475 {
 476         struct sfc_dp_rxq *dp_rxq = queue;
 477         struct sfc_rxq *rxq;
 478         struct sfc_adapter *sa;
 479         unsigned int sw_index;
 480
 481         if (dp_rxq == NULL)
 482                 return;
 483
 484         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 485         sa = rxq->evq->sa;
 486         sfc_adapter_lock(sa);
 487
 488         sw_index = dp_rxq->dpq.queue_id;
 489
 490         sfc_log_init(sa, "RxQ=%u", sw_index);
 491
 492         sfc_rx_qfini(sa, sw_index);
 493
 494         sfc_adapter_unlock(sa);
 495 }
 496
 497 static int
 498 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 499                    uint16_t nb_tx_desc, unsigned int socket_id,
 500                    const struct rte_eth_txconf *tx_conf)
 501 {
 502         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 503         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 504         int rc;
 505
 506         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 507                      tx_queue_id, nb_tx_desc, socket_id);
 508
 509         sfc_adapter_lock(sa);
 510
 511         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 512         if (rc != 0)
 513                 goto fail_tx_qinit;
 514
 515         dev->data->tx_queues[tx_queue_id] = sas->txq_info[tx_queue_id].dp;
 516
 517         sfc_adapter_unlock(sa);
 518         return 0;
 519
 520 fail_tx_qinit:
 521         sfc_adapter_unlock(sa);
 522         SFC_ASSERT(rc > 0);
 523         return -rc;
 524 }
 525
 526 static void
 527 sfc_tx_queue_release(void *queue)
 528 {
 529         struct sfc_dp_txq *dp_txq = queue;
 530         struct sfc_txq *txq;
 531         unsigned int sw_index;
 532         struct sfc_adapter *sa;
 533
 534         if (dp_txq == NULL)
 535                 return;
 536
 537         txq = sfc_txq_by_dp_txq(dp_txq);
 538         sw_index = dp_txq->dpq.queue_id;
 539
 540         SFC_ASSERT(txq->evq != NULL);
 541         sa = txq->evq->sa;
 542
 543         sfc_log_init(sa, "TxQ = %u", sw_index);
 544
 545         sfc_adapter_lock(sa);
 546
 547         sfc_tx_qfini(sa, sw_index);
 548
 549         sfc_adapter_unlock(sa);
 550 }
 551
 552 /*
 553  * Some statistics are computed as A - B where A and B each increase
 554  * monotonically with some hardware counter(s) and the counters are read
 555  * asynchronously.
 556  *
 557  * If packet X is counted in A, but not counted in B yet, computed value is
 558  * greater than real.
 559  *
 560  * If packet X is not counted in A at the moment of reading the counter,
 561  * but counted in B at the moment of reading the counter, computed value
 562  * is less than real.
 563  *
 564  * However, counter which grows backward is worse evil than slightly wrong
 565  * value. So, let's try to guarantee that it never happens except may be
 566  * the case when the MAC stats are zeroed as a result of a NIC reset.
 567  */
 568 static void
 569 sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
 570 {
 571         if ((int64_t)(newval - *stat) > 0 || newval == 0)
 572                 *stat = newval;
 573 }
 574
 575 static int
 576 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 577 {
 578         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 579         struct sfc_port *port = &sa->port;
 580         uint64_t *mac_stats;
 581         int ret;
 582
 583         rte_spinlock_lock(&port->mac_stats_lock);
 584
 585         ret = sfc_port_update_mac_stats(sa);
 586         if (ret != 0)
 587                 goto unlock;
 588
 589         mac_stats = port->mac_stats_buf;
 590
 591         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 592                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 593                 stats->ipackets =
 594                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 595                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 596                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 597                 stats->opackets =
 598                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 599                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 600                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 601                 stats->ibytes =
 602                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 603                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 604                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 605                 stats->obytes =
 606                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 607                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 608                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 609                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 610                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 611         } else {
 612                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 613                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 614                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 615                 /*
 616                  * Take into account stats which are whenever supported
 617                  * on EF10. If some stat is not supported by current
 618                  * firmware variant or HW revision, it is guaranteed
 619                  * to be zero in mac_stats.
 620                  */
 621                 stats->imissed =
 622                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 623                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 624                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 625                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 626                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 627                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 628                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 629                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 630                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 631                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 632                 stats->ierrors =
 633                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 634                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 635                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 636                 /* no oerrors counters supported on EF10 */
 637
 638                 /* Exclude missed, errors and pauses from Rx packets */
 639                 sfc_update_diff_stat(&port->ipackets,
 640                         mac_stats[EFX_MAC_RX_PKTS] -
 641                         mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
 642                         stats->imissed - stats->ierrors);
 643                 stats->ipackets = port->ipackets;
 644         }
 645
 646 unlock:
 647         rte_spinlock_unlock(&port->mac_stats_lock);
 648         SFC_ASSERT(ret >= 0);
 649         return -ret;
 650 }
 651
 652 static int
 653 sfc_stats_reset(struct rte_eth_dev *dev)
 654 {
 655         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 656         struct sfc_port *port = &sa->port;
 657         int rc;
 658
 659         if (sa->state != SFC_ADAPTER_STARTED) {
 660                 /*
 661                  * The operation cannot be done if port is not started; it
 662                  * will be scheduled to be done during the next port start
 663                  */
 664                 port->mac_stats_reset_pending = B_TRUE;
 665                 return 0;
 666         }
 667
 668         rc = sfc_port_reset_mac_stats(sa);
 669         if (rc != 0)
 670                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 671
 672         SFC_ASSERT(rc >= 0);
 673         return -rc;
 674 }
 675
 676 static int
 677 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 678                unsigned int xstats_count)
 679 {
 680         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 681         struct sfc_port *port = &sa->port;
 682         uint64_t *mac_stats;
 683         int rc;
 684         unsigned int i;
 685         int nstats = 0;
 686
 687         rte_spinlock_lock(&port->mac_stats_lock);
 688
 689         rc = sfc_port_update_mac_stats(sa);
 690         if (rc != 0) {
 691                 SFC_ASSERT(rc > 0);
 692                 nstats = -rc;
 693                 goto unlock;
 694         }
 695
 696         mac_stats = port->mac_stats_buf;
 697
 698         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 699                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 700                         if (xstats != NULL && nstats < (int)xstats_count) {
 701                                 xstats[nstats].id = nstats;
 702                                 xstats[nstats].value = mac_stats[i];
 703                         }
 704                         nstats++;
 705                 }
 706         }
 707
 708 unlock:
 709         rte_spinlock_unlock(&port->mac_stats_lock);
 710
 711         return nstats;
 712 }
 713
 714 static int
 715 sfc_xstats_get_names(struct rte_eth_dev *dev,
 716                      struct rte_eth_xstat_name *xstats_names,
 717                      unsigned int xstats_count)
 718 {
 719         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 720         struct sfc_port *port = &sa->port;
 721         unsigned int i;
 722         unsigned int nstats = 0;
 723
 724         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 725                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 726                         if (xstats_names != NULL && nstats < xstats_count)
 727                                 strlcpy(xstats_names[nstats].name,
 728                                         efx_mac_stat_name(sa->nic, i),
 729                                         sizeof(xstats_names[0].name));
 730                         nstats++;
 731                 }
 732         }
 733
 734         return nstats;
 735 }
 736
 737 static int
 738 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 739                      uint64_t *values, unsigned int n)
 740 {
 741         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 742         struct sfc_port *port = &sa->port;
 743         uint64_t *mac_stats;
 744         unsigned int nb_supported = 0;
 745         unsigned int nb_written = 0;
 746         unsigned int i;
 747         int ret;
 748         int rc;
 749
 750         if (unlikely(values == NULL) ||
 751             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 752                 return port->mac_stats_nb_supported;
 753
 754         rte_spinlock_lock(&port->mac_stats_lock);
 755
 756         rc = sfc_port_update_mac_stats(sa);
 757         if (rc != 0) {
 758                 SFC_ASSERT(rc > 0);
 759                 ret = -rc;
 760                 goto unlock;
 761         }
 762
 763         mac_stats = port->mac_stats_buf;
 764
 765         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 766                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 767                         continue;
 768
 769                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 770                         values[nb_written++] = mac_stats[i];
 771
 772                 ++nb_supported;
 773         }
 774
 775         ret = nb_written;
 776
 777 unlock:
 778         rte_spinlock_unlock(&port->mac_stats_lock);
 779
 780         return ret;
 781 }
 782
 783 static int
 784 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 785                            struct rte_eth_xstat_name *xstats_names,
 786                            const uint64_t *ids, unsigned int size)
 787 {
 788         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 789         struct sfc_port *port = &sa->port;
 790         unsigned int nb_supported = 0;
 791         unsigned int nb_written = 0;
 792         unsigned int i;
 793
 794         if (unlikely(xstats_names == NULL) ||
 795             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 796                 return port->mac_stats_nb_supported;
 797
 798         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 799                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 800                         continue;
 801
 802                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 803                         char *name = xstats_names[nb_written++].name;
 804
 805                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 806                                 sizeof(xstats_names[0].name));
 807                 }
 808
 809                 ++nb_supported;
 810         }
 811
 812         return nb_written;
 813 }
 814
 815 static int
 816 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 817 {
 818         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 819         unsigned int wanted_fc, link_fc;
 820
 821         memset(fc_conf, 0, sizeof(*fc_conf));
 822
 823         sfc_adapter_lock(sa);
 824
 825         if (sa->state == SFC_ADAPTER_STARTED)
 826                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 827         else
 828                 link_fc = sa->port.flow_ctrl;
 829
 830         switch (link_fc) {
 831         case 0:
 832                 fc_conf->mode = RTE_FC_NONE;
 833                 break;
 834         case EFX_FCNTL_RESPOND:
 835                 fc_conf->mode = RTE_FC_RX_PAUSE;
 836                 break;
 837         case EFX_FCNTL_GENERATE:
 838                 fc_conf->mode = RTE_FC_TX_PAUSE;
 839                 break;
 840         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 841                 fc_conf->mode = RTE_FC_FULL;
 842                 break;
 843         default:
 844                 sfc_err(sa, "%s: unexpected flow control value %#x",
 845                         __func__, link_fc);
 846         }
 847
 848         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 849
 850         sfc_adapter_unlock(sa);
 851
 852         return 0;
 853 }
 854
 855 static int
 856 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 857 {
 858         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 859         struct sfc_port *port = &sa->port;
 860         unsigned int fcntl;
 861         int rc;
 862
 863         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 864             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 865             fc_conf->mac_ctrl_frame_fwd != 0) {
 866                 sfc_err(sa, "unsupported flow control settings specified");
 867                 rc = EINVAL;
 868                 goto fail_inval;
 869         }
 870
 871         switch (fc_conf->mode) {
 872         case RTE_FC_NONE:
 873                 fcntl = 0;
 874                 break;
 875         case RTE_FC_RX_PAUSE:
 876                 fcntl = EFX_FCNTL_RESPOND;
 877                 break;
 878         case RTE_FC_TX_PAUSE:
 879                 fcntl = EFX_FCNTL_GENERATE;
 880                 break;
 881         case RTE_FC_FULL:
 882                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 883                 break;
 884         default:
 885                 rc = EINVAL;
 886                 goto fail_inval;
 887         }
 888
 889         sfc_adapter_lock(sa);
 890
 891         if (sa->state == SFC_ADAPTER_STARTED) {
 892                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 893                 if (rc != 0)
 894                         goto fail_mac_fcntl_set;
 895         }
 896
 897         port->flow_ctrl = fcntl;
 898         port->flow_ctrl_autoneg = fc_conf->autoneg;
 899
 900         sfc_adapter_unlock(sa);
 901
 902         return 0;
 903
 904 fail_mac_fcntl_set:
 905         sfc_adapter_unlock(sa);
 906 fail_inval:
 907         SFC_ASSERT(rc > 0);
 908         return -rc;
 909 }
 910
 911 static int
 912 sfc_check_scatter_on_all_rx_queues(struct sfc_adapter *sa, size_t pdu)
 913 {
 914         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
 915         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 916         boolean_t scatter_enabled;
 917         const char *error;
 918         unsigned int i;
 919
 920         for (i = 0; i < sas->rxq_count; i++) {
 921                 if ((sas->rxq_info[i].state & SFC_RXQ_INITIALIZED) == 0)
 922                         continue;
 923
 924                 scatter_enabled = (sas->rxq_info[i].type_flags &
 925                                    EFX_RXQ_FLAG_SCATTER);
 926
 927                 if (!sfc_rx_check_scatter(pdu, sa->rxq_ctrl[i].buf_size,
 928                                           encp->enc_rx_prefix_size,
 929                                           scatter_enabled, &error)) {
 930                         sfc_err(sa, "MTU check for RxQ %u failed: %s", i,
 931                                 error);
 932                         return EINVAL;
 933                 }
 934         }
 935
 936         return 0;
 937 }
 938
 939 static int
 940 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 941 {
 942         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 943         size_t pdu = EFX_MAC_PDU(mtu);
 944         size_t old_pdu;
 945         int rc;
 946
 947         sfc_log_init(sa, "mtu=%u", mtu);
 948
 949         rc = EINVAL;
 950         if (pdu < EFX_MAC_PDU_MIN) {
 951                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 952                         (unsigned int)mtu, (unsigned int)pdu,
 953                         EFX_MAC_PDU_MIN);
 954                 goto fail_inval;
 955         }
 956         if (pdu > EFX_MAC_PDU_MAX) {
 957                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 958                         (unsigned int)mtu, (unsigned int)pdu,
 959                         (unsigned int)EFX_MAC_PDU_MAX);
 960                 goto fail_inval;
 961         }
 962
 963         sfc_adapter_lock(sa);
 964
 965         rc = sfc_check_scatter_on_all_rx_queues(sa, pdu);
 966         if (rc != 0)
 967                 goto fail_check_scatter;
 968
 969         if (pdu != sa->port.pdu) {
 970                 if (sa->state == SFC_ADAPTER_STARTED) {
 971                         sfc_stop(sa);
 972
 973                         old_pdu = sa->port.pdu;
 974                         sa->port.pdu = pdu;
 975                         rc = sfc_start(sa);
 976                         if (rc != 0)
 977                                 goto fail_start;
 978                 } else {
 979                         sa->port.pdu = pdu;
 980                 }
 981         }
 982
 983         /*
 984          * The driver does not use it, but other PMDs update jumbo frame
 985          * flag and max_rx_pkt_len when MTU is set.
 986          */
 987         if (mtu > RTE_ETHER_MAX_LEN) {
 988                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 989                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 990         }
 991
 992         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 993
 994         sfc_adapter_unlock(sa);
 995
 996         sfc_log_init(sa, "done");
 997         return 0;
 998
 999 fail_start:
1000         sa->port.pdu = old_pdu;
1001         if (sfc_start(sa) != 0)
1002                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
1003                         "PDU max size - port is stopped",
1004                         (unsigned int)pdu, (unsigned int)old_pdu);
1005
1006 fail_check_scatter:
1007         sfc_adapter_unlock(sa);
1008
1009 fail_inval:
1010         sfc_log_init(sa, "failed %d", rc);
1011         SFC_ASSERT(rc > 0);
1012         return -rc;
1013 }
1014 static int
1015 sfc_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1016 {
1017         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1018         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
1019         struct sfc_port *port = &sa->port;
1020         struct rte_ether_addr *old_addr = &dev->data->mac_addrs[0];
1021         int rc = 0;
1022
1023         sfc_adapter_lock(sa);
1024
1025         /*
1026          * Copy the address to the device private data so that
1027          * it could be recalled in the case of adapter restart.
1028          */
1029         rte_ether_addr_copy(mac_addr, &port->default_mac_addr);
1030
1031         /*
1032          * Neither of the two following checks can return
1033          * an error. The new MAC address is preserved in
1034          * the device private data and can be activated
1035          * on the next port start if the user prevents
1036          * isolated mode from being enabled.
1037          */
1038         if (sfc_sa2shared(sa)->isolated) {
1039                 sfc_warn(sa, "isolated mode is active on the port");
1040                 sfc_warn(sa, "will not set MAC address");
1041                 goto unlock;
1042         }
1043
1044         if (sa->state != SFC_ADAPTER_STARTED) {
1045                 sfc_notice(sa, "the port is not started");
1046                 sfc_notice(sa, "the new MAC address will be set on port start");
1047
1048                 goto unlock;
1049         }
1050
1051         if (encp->enc_allow_set_mac_with_installed_filters) {
1052                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
1053                 if (rc != 0) {
1054                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
1055                         goto unlock;
1056                 }
1057
1058                 /*
1059                  * Changing the MAC address by means of MCDI request
1060                  * has no effect on received traffic, therefore
1061                  * we also need to update unicast filters
1062                  */
1063                 rc = sfc_set_rx_mode(sa);
1064                 if (rc != 0) {
1065                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
1066                         /* Rollback the old address */
1067                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
1068                         (void)sfc_set_rx_mode(sa);
1069                 }
1070         } else {
1071                 sfc_warn(sa, "cannot set MAC address with filters installed");
1072                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
1073                 sfc_warn(sa, "(some traffic may be dropped)");
1074
1075                 /*
1076                  * Since setting MAC address with filters installed is not
1077                  * allowed on the adapter, the new MAC address will be set
1078                  * by means of adapter restart. sfc_start() shall retrieve
1079                  * the new address from the device private data and set it.
1080                  */
1081                 sfc_stop(sa);
1082                 rc = sfc_start(sa);
1083                 if (rc != 0)
1084                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1085         }
1086
1087 unlock:
1088         if (rc != 0)
1089                 rte_ether_addr_copy(old_addr, &port->default_mac_addr);
1090
1091         sfc_adapter_unlock(sa);
1092
1093         SFC_ASSERT(rc >= 0);
1094         return -rc;
1095 }
1096
1097
1098 static int
1099 sfc_set_mc_addr_list(struct rte_eth_dev *dev,
1100                 struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr)
1101 {
1102         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1103         struct sfc_port *port = &sa->port;
1104         uint8_t *mc_addrs = port->mcast_addrs;
1105         int rc;
1106         unsigned int i;
1107
1108         if (sfc_sa2shared(sa)->isolated) {
1109                 sfc_err(sa, "isolated mode is active on the port");
1110                 sfc_err(sa, "will not set multicast address list");
1111                 return -ENOTSUP;
1112         }
1113
1114         if (mc_addrs == NULL)
1115                 return -ENOBUFS;
1116
1117         if (nb_mc_addr > port->max_mcast_addrs) {
1118                 sfc_err(sa, "too many multicast addresses: %u > %u",
1119                          nb_mc_addr, port->max_mcast_addrs);
1120                 return -EINVAL;
1121         }
1122
1123         for (i = 0; i < nb_mc_addr; ++i) {
1124                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1125                                  EFX_MAC_ADDR_LEN);
1126                 mc_addrs += EFX_MAC_ADDR_LEN;
1127         }
1128
1129         port->nb_mcast_addrs = nb_mc_addr;
1130
1131         if (sa->state != SFC_ADAPTER_STARTED)
1132                 return 0;
1133
1134         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1135                                         port->nb_mcast_addrs);
1136         if (rc != 0)
1137                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1138
1139         SFC_ASSERT(rc >= 0);
1140         return -rc;
1141 }
1142
1143 /*
1144  * The function is used by the secondary process as well. It must not
1145  * use any process-local pointers from the adapter data.
1146  */
1147 static void
1148 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1149                       struct rte_eth_rxq_info *qinfo)
1150 {
1151         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1152         struct sfc_rxq_info *rxq_info;
1153
1154         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1155
1156         rxq_info = &sas->rxq_info[rx_queue_id];
1157
1158         qinfo->mp = rxq_info->refill_mb_pool;
1159         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1160         qinfo->conf.rx_drop_en = 1;
1161         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1162         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1163         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1164                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1165                 qinfo->scattered_rx = 1;
1166         }
1167         qinfo->nb_desc = rxq_info->entries;
1168 }
1169
1170 /*
1171  * The function is used by the secondary process as well. It must not
1172  * use any process-local pointers from the adapter data.
1173  */
1174 static void
1175 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1176                       struct rte_eth_txq_info *qinfo)
1177 {
1178         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1179         struct sfc_txq_info *txq_info;
1180
1181         SFC_ASSERT(tx_queue_id < sas->txq_count);
1182
1183         txq_info = &sas->txq_info[tx_queue_id];
1184
1185         memset(qinfo, 0, sizeof(*qinfo));
1186
1187         qinfo->conf.offloads = txq_info->offloads;
1188         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1189         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1190         qinfo->nb_desc = txq_info->entries;
1191 }
1192
1193 /*
1194  * The function is used by the secondary process as well. It must not
1195  * use any process-local pointers from the adapter data.
1196  */
1197 static uint32_t
1198 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1199 {
1200         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1201         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1202         struct sfc_rxq_info *rxq_info;
1203
1204         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1205         rxq_info = &sas->rxq_info[rx_queue_id];
1206
1207         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1208                 return 0;
1209
1210         return sap->dp_rx->qdesc_npending(rxq_info->dp);
1211 }
1212
1213 /*
1214  * The function is used by the secondary process as well. It must not
1215  * use any process-local pointers from the adapter data.
1216  */
1217 static int
1218 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1219 {
1220         struct sfc_dp_rxq *dp_rxq = queue;
1221         const struct sfc_dp_rx *dp_rx;
1222
1223         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1224
1225         return offset < dp_rx->qdesc_npending(dp_rxq);
1226 }
1227
1228 /*
1229  * The function is used by the secondary process as well. It must not
1230  * use any process-local pointers from the adapter data.
1231  */
1232 static int
1233 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1234 {
1235         struct sfc_dp_rxq *dp_rxq = queue;
1236         const struct sfc_dp_rx *dp_rx;
1237
1238         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1239
1240         return dp_rx->qdesc_status(dp_rxq, offset);
1241 }
1242
1243 /*
1244  * The function is used by the secondary process as well. It must not
1245  * use any process-local pointers from the adapter data.
1246  */
1247 static int
1248 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1249 {
1250         struct sfc_dp_txq *dp_txq = queue;
1251         const struct sfc_dp_tx *dp_tx;
1252
1253         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1254
1255         return dp_tx->qdesc_status(dp_txq, offset);
1256 }
1257
1258 static int
1259 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1260 {
1261         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1262         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1263         int rc;
1264
1265         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1266
1267         sfc_adapter_lock(sa);
1268
1269         rc = EINVAL;
1270         if (sa->state != SFC_ADAPTER_STARTED)
1271                 goto fail_not_started;
1272
1273         if (sas->rxq_info[rx_queue_id].state != SFC_RXQ_INITIALIZED)
1274                 goto fail_not_setup;
1275
1276         rc = sfc_rx_qstart(sa, rx_queue_id);
1277         if (rc != 0)
1278                 goto fail_rx_qstart;
1279
1280         sas->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1281
1282         sfc_adapter_unlock(sa);
1283
1284         return 0;
1285
1286 fail_rx_qstart:
1287 fail_not_setup:
1288 fail_not_started:
1289         sfc_adapter_unlock(sa);
1290         SFC_ASSERT(rc > 0);
1291         return -rc;
1292 }
1293
1294 static int
1295 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1296 {
1297         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1298         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1299
1300         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1301
1302         sfc_adapter_lock(sa);
1303         sfc_rx_qstop(sa, rx_queue_id);
1304
1305         sas->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1306
1307         sfc_adapter_unlock(sa);
1308
1309         return 0;
1310 }
1311
1312 static int
1313 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1314 {
1315         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1316         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1317         int rc;
1318
1319         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1320
1321         sfc_adapter_lock(sa);
1322
1323         rc = EINVAL;
1324         if (sa->state != SFC_ADAPTER_STARTED)
1325                 goto fail_not_started;
1326
1327         if (sas->txq_info[tx_queue_id].state != SFC_TXQ_INITIALIZED)
1328                 goto fail_not_setup;
1329
1330         rc = sfc_tx_qstart(sa, tx_queue_id);
1331         if (rc != 0)
1332                 goto fail_tx_qstart;
1333
1334         sas->txq_info[tx_queue_id].deferred_started = B_TRUE;
1335
1336         sfc_adapter_unlock(sa);
1337         return 0;
1338
1339 fail_tx_qstart:
1340
1341 fail_not_setup:
1342 fail_not_started:
1343         sfc_adapter_unlock(sa);
1344         SFC_ASSERT(rc > 0);
1345         return -rc;
1346 }
1347
1348 static int
1349 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1350 {
1351         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1352         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1353
1354         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1355
1356         sfc_adapter_lock(sa);
1357
1358         sfc_tx_qstop(sa, tx_queue_id);
1359
1360         sas->txq_info[tx_queue_id].deferred_started = B_FALSE;
1361
1362         sfc_adapter_unlock(sa);
1363         return 0;
1364 }
1365
1366 static efx_tunnel_protocol_t
1367 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1368 {
1369         switch (rte_type) {
1370         case RTE_TUNNEL_TYPE_VXLAN:
1371                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1372         case RTE_TUNNEL_TYPE_GENEVE:
1373                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1374         default:
1375                 return EFX_TUNNEL_NPROTOS;
1376         }
1377 }
1378
1379 enum sfc_udp_tunnel_op_e {
1380         SFC_UDP_TUNNEL_ADD_PORT,
1381         SFC_UDP_TUNNEL_DEL_PORT,
1382 };
1383
1384 static int
1385 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1386                       struct rte_eth_udp_tunnel *tunnel_udp,
1387                       enum sfc_udp_tunnel_op_e op)
1388 {
1389         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1390         efx_tunnel_protocol_t tunnel_proto;
1391         int rc;
1392
1393         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1394                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1395                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1396                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1397
1398         tunnel_proto =
1399                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1400         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1401                 rc = ENOTSUP;
1402                 goto fail_bad_proto;
1403         }
1404
1405         sfc_adapter_lock(sa);
1406
1407         switch (op) {
1408         case SFC_UDP_TUNNEL_ADD_PORT:
1409                 rc = efx_tunnel_config_udp_add(sa->nic,
1410                                                tunnel_udp->udp_port,
1411                                                tunnel_proto);
1412                 break;
1413         case SFC_UDP_TUNNEL_DEL_PORT:
1414                 rc = efx_tunnel_config_udp_remove(sa->nic,
1415                                                   tunnel_udp->udp_port,
1416                                                   tunnel_proto);
1417                 break;
1418         default:
1419                 rc = EINVAL;
1420                 goto fail_bad_op;
1421         }
1422
1423         if (rc != 0)
1424                 goto fail_op;
1425
1426         if (sa->state == SFC_ADAPTER_STARTED) {
1427                 rc = efx_tunnel_reconfigure(sa->nic);
1428                 if (rc == EAGAIN) {
1429                         /*
1430                          * Configuration is accepted by FW and MC reboot
1431                          * is initiated to apply the changes. MC reboot
1432                          * will be handled in a usual way (MC reboot
1433                          * event on management event queue and adapter
1434                          * restart).
1435                          */
1436                         rc = 0;
1437                 } else if (rc != 0) {
1438                         goto fail_reconfigure;
1439                 }
1440         }
1441
1442         sfc_adapter_unlock(sa);
1443         return 0;
1444
1445 fail_reconfigure:
1446         /* Remove/restore entry since the change makes the trouble */
1447         switch (op) {
1448         case SFC_UDP_TUNNEL_ADD_PORT:
1449                 (void)efx_tunnel_config_udp_remove(sa->nic,
1450                                                    tunnel_udp->udp_port,
1451                                                    tunnel_proto);
1452                 break;
1453         case SFC_UDP_TUNNEL_DEL_PORT:
1454                 (void)efx_tunnel_config_udp_add(sa->nic,
1455                                                 tunnel_udp->udp_port,
1456                                                 tunnel_proto);
1457                 break;
1458         }
1459
1460 fail_op:
1461 fail_bad_op:
1462         sfc_adapter_unlock(sa);
1463
1464 fail_bad_proto:
1465         SFC_ASSERT(rc > 0);
1466         return -rc;
1467 }
1468
1469 static int
1470 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1471                             struct rte_eth_udp_tunnel *tunnel_udp)
1472 {
1473         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1474 }
1475
1476 static int
1477 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1478                             struct rte_eth_udp_tunnel *tunnel_udp)
1479 {
1480         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1481 }
1482
1483 /*
1484  * The function is used by the secondary process as well. It must not
1485  * use any process-local pointers from the adapter data.
1486  */
1487 static int
1488 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1489                           struct rte_eth_rss_conf *rss_conf)
1490 {
1491         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1492         struct sfc_rss *rss = &sas->rss;
1493
1494         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1495                 return -ENOTSUP;
1496
1497         /*
1498          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1499          * hence, conversion is done here to derive a correct set of ETH_RSS
1500          * flags which corresponds to the active EFX configuration stored
1501          * locally in 'sfc_adapter' and kept up-to-date
1502          */
1503         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(rss, rss->hash_types);
1504         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1505         if (rss_conf->rss_key != NULL)
1506                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1507
1508         return 0;
1509 }
1510
1511 static int
1512 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1513                         struct rte_eth_rss_conf *rss_conf)
1514 {
1515         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1516         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1517         unsigned int efx_hash_types;
1518         int rc = 0;
1519
1520         if (sfc_sa2shared(sa)->isolated)
1521                 return -ENOTSUP;
1522
1523         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1524                 sfc_err(sa, "RSS is not available");
1525                 return -ENOTSUP;
1526         }
1527
1528         if (rss->channels == 0) {
1529                 sfc_err(sa, "RSS is not configured");
1530                 return -EINVAL;
1531         }
1532
1533         if ((rss_conf->rss_key != NULL) &&
1534             (rss_conf->rss_key_len != sizeof(rss->key))) {
1535                 sfc_err(sa, "RSS key size is wrong (should be %zu)",
1536                         sizeof(rss->key));
1537                 return -EINVAL;
1538         }
1539
1540         sfc_adapter_lock(sa);
1541
1542         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1543         if (rc != 0)
1544                 goto fail_rx_hf_rte_to_efx;
1545
1546         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1547                                    rss->hash_alg, efx_hash_types, B_TRUE);
1548         if (rc != 0)
1549                 goto fail_scale_mode_set;
1550
1551         if (rss_conf->rss_key != NULL) {
1552                 if (sa->state == SFC_ADAPTER_STARTED) {
1553                         rc = efx_rx_scale_key_set(sa->nic,
1554                                                   EFX_RSS_CONTEXT_DEFAULT,
1555                                                   rss_conf->rss_key,
1556                                                   sizeof(rss->key));
1557                         if (rc != 0)
1558                                 goto fail_scale_key_set;
1559                 }
1560
1561                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1562         }
1563
1564         rss->hash_types = efx_hash_types;
1565
1566         sfc_adapter_unlock(sa);
1567
1568         return 0;
1569
1570 fail_scale_key_set:
1571         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1572                                   EFX_RX_HASHALG_TOEPLITZ,
1573                                   rss->hash_types, B_TRUE) != 0)
1574                 sfc_err(sa, "failed to restore RSS mode");
1575
1576 fail_scale_mode_set:
1577 fail_rx_hf_rte_to_efx:
1578         sfc_adapter_unlock(sa);
1579         return -rc;
1580 }
1581
1582 /*
1583  * The function is used by the secondary process as well. It must not
1584  * use any process-local pointers from the adapter data.
1585  */
1586 static int
1587 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1588                        struct rte_eth_rss_reta_entry64 *reta_conf,
1589                        uint16_t reta_size)
1590 {
1591         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1592         struct sfc_rss *rss = &sas->rss;
1593         int entry;
1594
1595         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || sas->isolated)
1596                 return -ENOTSUP;
1597
1598         if (rss->channels == 0)
1599                 return -EINVAL;
1600
1601         if (reta_size != EFX_RSS_TBL_SIZE)
1602                 return -EINVAL;
1603
1604         for (entry = 0; entry < reta_size; entry++) {
1605                 int grp = entry / RTE_RETA_GROUP_SIZE;
1606                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1607
1608                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1609                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1610         }
1611
1612         return 0;
1613 }
1614
1615 static int
1616 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1617                         struct rte_eth_rss_reta_entry64 *reta_conf,
1618                         uint16_t reta_size)
1619 {
1620         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1621         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1622         unsigned int *rss_tbl_new;
1623         uint16_t entry;
1624         int rc = 0;
1625
1626
1627         if (sfc_sa2shared(sa)->isolated)
1628                 return -ENOTSUP;
1629
1630         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1631                 sfc_err(sa, "RSS is not available");
1632                 return -ENOTSUP;
1633         }
1634
1635         if (rss->channels == 0) {
1636                 sfc_err(sa, "RSS is not configured");
1637                 return -EINVAL;
1638         }
1639
1640         if (reta_size != EFX_RSS_TBL_SIZE) {
1641                 sfc_err(sa, "RETA size is wrong (should be %u)",
1642                         EFX_RSS_TBL_SIZE);
1643                 return -EINVAL;
1644         }
1645
1646         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1647         if (rss_tbl_new == NULL)
1648                 return -ENOMEM;
1649
1650         sfc_adapter_lock(sa);
1651
1652         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1653
1654         for (entry = 0; entry < reta_size; entry++) {
1655                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1656                 struct rte_eth_rss_reta_entry64 *grp;
1657
1658                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1659
1660                 if (grp->mask & (1ull << grp_idx)) {
1661                         if (grp->reta[grp_idx] >= rss->channels) {
1662                                 rc = EINVAL;
1663                                 goto bad_reta_entry;
1664                         }
1665                         rss_tbl_new[entry] = grp->reta[grp_idx];
1666                 }
1667         }
1668
1669         if (sa->state == SFC_ADAPTER_STARTED) {
1670                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1671                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1672                 if (rc != 0)
1673                         goto fail_scale_tbl_set;
1674         }
1675
1676         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1677
1678 fail_scale_tbl_set:
1679 bad_reta_entry:
1680         sfc_adapter_unlock(sa);
1681
1682         rte_free(rss_tbl_new);
1683
1684         SFC_ASSERT(rc >= 0);
1685         return -rc;
1686 }
1687
1688 static int
1689 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1690                     enum rte_filter_op filter_op,
1691                     void *arg)
1692 {
1693         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1694         int rc = ENOTSUP;
1695
1696         sfc_log_init(sa, "entry");
1697
1698         switch (filter_type) {
1699         case RTE_ETH_FILTER_NONE:
1700                 sfc_err(sa, "Global filters configuration not supported");
1701                 break;
1702         case RTE_ETH_FILTER_MACVLAN:
1703                 sfc_err(sa, "MACVLAN filters not supported");
1704                 break;
1705         case RTE_ETH_FILTER_ETHERTYPE:
1706                 sfc_err(sa, "EtherType filters not supported");
1707                 break;
1708         case RTE_ETH_FILTER_FLEXIBLE:
1709                 sfc_err(sa, "Flexible filters not supported");
1710                 break;
1711         case RTE_ETH_FILTER_SYN:
1712                 sfc_err(sa, "SYN filters not supported");
1713                 break;
1714         case RTE_ETH_FILTER_NTUPLE:
1715                 sfc_err(sa, "NTUPLE filters not supported");
1716                 break;
1717         case RTE_ETH_FILTER_TUNNEL:
1718                 sfc_err(sa, "Tunnel filters not supported");
1719                 break;
1720         case RTE_ETH_FILTER_FDIR:
1721                 sfc_err(sa, "Flow Director filters not supported");
1722                 break;
1723         case RTE_ETH_FILTER_HASH:
1724                 sfc_err(sa, "Hash filters not supported");
1725                 break;
1726         case RTE_ETH_FILTER_GENERIC:
1727                 if (filter_op != RTE_ETH_FILTER_GET) {
1728                         rc = EINVAL;
1729                 } else {
1730                         *(const void **)arg = &sfc_flow_ops;
1731                         rc = 0;
1732                 }
1733                 break;
1734         default:
1735                 sfc_err(sa, "Unknown filter type %u", filter_type);
1736                 break;
1737         }
1738
1739         sfc_log_init(sa, "exit: %d", -rc);
1740         SFC_ASSERT(rc >= 0);
1741         return -rc;
1742 }
1743
1744 static int
1745 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1746 {
1747         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1748
1749         /*
1750          * If Rx datapath does not provide callback to check mempool,
1751          * all pools are supported.
1752          */
1753         if (sap->dp_rx->pool_ops_supported == NULL)
1754                 return 1;
1755
1756         return sap->dp_rx->pool_ops_supported(pool);
1757 }
1758
1759 static int
1760 sfc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
1761 {
1762         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1763         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1764         struct sfc_rxq_info *rxq_info;
1765
1766         SFC_ASSERT(queue_id < sas->rxq_count);
1767         rxq_info = &sas->rxq_info[queue_id];
1768
1769         return sap->dp_rx->intr_enable(rxq_info->dp);
1770 }
1771
1772 static int
1773 sfc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
1774 {
1775         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1776         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1777         struct sfc_rxq_info *rxq_info;
1778
1779         SFC_ASSERT(queue_id < sas->rxq_count);
1780         rxq_info = &sas->rxq_info[queue_id];
1781
1782         return sap->dp_rx->intr_disable(rxq_info->dp);
1783 }
1784
1785 static const struct eth_dev_ops sfc_eth_dev_ops = {
1786         .dev_configure                  = sfc_dev_configure,
1787         .dev_start                      = sfc_dev_start,
1788         .dev_stop                       = sfc_dev_stop,
1789         .dev_set_link_up                = sfc_dev_set_link_up,
1790         .dev_set_link_down              = sfc_dev_set_link_down,
1791         .dev_close                      = sfc_dev_close,
1792         .promiscuous_enable             = sfc_dev_promisc_enable,
1793         .promiscuous_disable            = sfc_dev_promisc_disable,
1794         .allmulticast_enable            = sfc_dev_allmulti_enable,
1795         .allmulticast_disable           = sfc_dev_allmulti_disable,
1796         .link_update                    = sfc_dev_link_update,
1797         .stats_get                      = sfc_stats_get,
1798         .stats_reset                    = sfc_stats_reset,
1799         .xstats_get                     = sfc_xstats_get,
1800         .xstats_reset                   = sfc_stats_reset,
1801         .xstats_get_names               = sfc_xstats_get_names,
1802         .dev_infos_get                  = sfc_dev_infos_get,
1803         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1804         .mtu_set                        = sfc_dev_set_mtu,
1805         .rx_queue_start                 = sfc_rx_queue_start,
1806         .rx_queue_stop                  = sfc_rx_queue_stop,
1807         .tx_queue_start                 = sfc_tx_queue_start,
1808         .tx_queue_stop                  = sfc_tx_queue_stop,
1809         .rx_queue_setup                 = sfc_rx_queue_setup,
1810         .rx_queue_release               = sfc_rx_queue_release,
1811         .rx_queue_count                 = sfc_rx_queue_count,
1812         .rx_descriptor_done             = sfc_rx_descriptor_done,
1813         .rx_descriptor_status           = sfc_rx_descriptor_status,
1814         .tx_descriptor_status           = sfc_tx_descriptor_status,
1815         .rx_queue_intr_enable           = sfc_rx_queue_intr_enable,
1816         .rx_queue_intr_disable          = sfc_rx_queue_intr_disable,
1817         .tx_queue_setup                 = sfc_tx_queue_setup,
1818         .tx_queue_release               = sfc_tx_queue_release,
1819         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1820         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1821         .mac_addr_set                   = sfc_mac_addr_set,
1822         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1823         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1824         .reta_update                    = sfc_dev_rss_reta_update,
1825         .reta_query                     = sfc_dev_rss_reta_query,
1826         .rss_hash_update                = sfc_dev_rss_hash_update,
1827         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1828         .filter_ctrl                    = sfc_dev_filter_ctrl,
1829         .set_mc_addr_list               = sfc_set_mc_addr_list,
1830         .rxq_info_get                   = sfc_rx_queue_info_get,
1831         .txq_info_get                   = sfc_tx_queue_info_get,
1832         .fw_version_get                 = sfc_fw_version_get,
1833         .xstats_get_by_id               = sfc_xstats_get_by_id,
1834         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1835         .pool_ops_supported             = sfc_pool_ops_supported,
1836 };
1837
1838 /**
1839  * Duplicate a string in potentially shared memory required for
1840  * multi-process support.
1841  *
1842  * strdup() allocates from process-local heap/memory.
1843  */
1844 static char *
1845 sfc_strdup(const char *str)
1846 {
1847         size_t size;
1848         char *copy;
1849
1850         if (str == NULL)
1851                 return NULL;
1852
1853         size = strlen(str) + 1;
1854         copy = rte_malloc(__func__, size, 0);
1855         if (copy != NULL)
1856                 rte_memcpy(copy, str, size);
1857
1858         return copy;
1859 }
1860
1861 static int
1862 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1863 {
1864         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1865         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1866         const struct sfc_dp_rx *dp_rx;
1867         const struct sfc_dp_tx *dp_tx;
1868         const efx_nic_cfg_t *encp;
1869         unsigned int avail_caps = 0;
1870         const char *rx_name = NULL;
1871         const char *tx_name = NULL;
1872         int rc;
1873
1874         switch (sa->family) {
1875         case EFX_FAMILY_HUNTINGTON:
1876         case EFX_FAMILY_MEDFORD:
1877         case EFX_FAMILY_MEDFORD2:
1878                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1879                 break;
1880         default:
1881                 break;
1882         }
1883
1884         encp = efx_nic_cfg_get(sa->nic);
1885         if (encp->enc_rx_es_super_buffer_supported)
1886                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1887
1888         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1889                                 sfc_kvarg_string_handler, &rx_name);
1890         if (rc != 0)
1891                 goto fail_kvarg_rx_datapath;
1892
1893         if (rx_name != NULL) {
1894                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1895                 if (dp_rx == NULL) {
1896                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1897                         rc = ENOENT;
1898                         goto fail_dp_rx;
1899                 }
1900                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
1901                         sfc_err(sa,
1902                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1903                                 rx_name);
1904                         rc = EINVAL;
1905                         goto fail_dp_rx_caps;
1906                 }
1907         } else {
1908                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1909                 if (dp_rx == NULL) {
1910                         sfc_err(sa, "Rx datapath by caps %#x not found",
1911                                 avail_caps);
1912                         rc = ENOENT;
1913                         goto fail_dp_rx;
1914                 }
1915         }
1916
1917         sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
1918         if (sas->dp_rx_name == NULL) {
1919                 rc = ENOMEM;
1920                 goto fail_dp_rx_name;
1921         }
1922
1923         sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
1924
1925         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1926                                 sfc_kvarg_string_handler, &tx_name);
1927         if (rc != 0)
1928                 goto fail_kvarg_tx_datapath;
1929
1930         if (tx_name != NULL) {
1931                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1932                 if (dp_tx == NULL) {
1933                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1934                         rc = ENOENT;
1935                         goto fail_dp_tx;
1936                 }
1937                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
1938                         sfc_err(sa,
1939                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1940                                 tx_name);
1941                         rc = EINVAL;
1942                         goto fail_dp_tx_caps;
1943                 }
1944         } else {
1945                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1946                 if (dp_tx == NULL) {
1947                         sfc_err(sa, "Tx datapath by caps %#x not found",
1948                                 avail_caps);
1949                         rc = ENOENT;
1950                         goto fail_dp_tx;
1951                 }
1952         }
1953
1954         sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
1955         if (sas->dp_tx_name == NULL) {
1956                 rc = ENOMEM;
1957                 goto fail_dp_tx_name;
1958         }
1959
1960         sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
1961
1962         sa->priv.dp_rx = dp_rx;
1963         sa->priv.dp_tx = dp_tx;
1964
1965         dev->rx_pkt_burst = dp_rx->pkt_burst;
1966         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
1967         dev->tx_pkt_burst = dp_tx->pkt_burst;
1968
1969         dev->dev_ops = &sfc_eth_dev_ops;
1970
1971         return 0;
1972
1973 fail_dp_tx_name:
1974 fail_dp_tx_caps:
1975 fail_dp_tx:
1976 fail_kvarg_tx_datapath:
1977         rte_free(sas->dp_rx_name);
1978         sas->dp_rx_name = NULL;
1979
1980 fail_dp_rx_name:
1981 fail_dp_rx_caps:
1982 fail_dp_rx:
1983 fail_kvarg_rx_datapath:
1984         return rc;
1985 }
1986
1987 static void
1988 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1989 {
1990         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1991         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1992
1993         dev->dev_ops = NULL;
1994         dev->tx_pkt_prepare = NULL;
1995         dev->rx_pkt_burst = NULL;
1996         dev->tx_pkt_burst = NULL;
1997
1998         rte_free(sas->dp_tx_name);
1999         sas->dp_tx_name = NULL;
2000         sa->priv.dp_tx = NULL;
2001
2002         rte_free(sas->dp_rx_name);
2003         sas->dp_rx_name = NULL;
2004         sa->priv.dp_rx = NULL;
2005 }
2006
2007 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
2008         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
2009         .rx_queue_count                 = sfc_rx_queue_count,
2010         .rx_descriptor_done             = sfc_rx_descriptor_done,
2011         .rx_descriptor_status           = sfc_rx_descriptor_status,
2012         .tx_descriptor_status           = sfc_tx_descriptor_status,
2013         .reta_query                     = sfc_dev_rss_reta_query,
2014         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
2015         .rxq_info_get                   = sfc_rx_queue_info_get,
2016         .txq_info_get                   = sfc_tx_queue_info_get,
2017 };
2018
2019 static int
2020 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
2021 {
2022         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2023         struct sfc_adapter_priv *sap;
2024         const struct sfc_dp_rx *dp_rx;
2025         const struct sfc_dp_tx *dp_tx;
2026         int rc;
2027
2028         /*
2029          * Allocate process private data from heap, since it should not
2030          * be located in shared memory allocated using rte_malloc() API.
2031          */
2032         sap = calloc(1, sizeof(*sap));
2033         if (sap == NULL) {
2034                 rc = ENOMEM;
2035                 goto fail_alloc_priv;
2036         }
2037
2038         sap->logtype_main = logtype_main;
2039
2040         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
2041         if (dp_rx == NULL) {
2042                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2043                         "cannot find %s Rx datapath", sas->dp_rx_name);
2044                 rc = ENOENT;
2045                 goto fail_dp_rx;
2046         }
2047         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
2048                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2049                         "%s Rx datapath does not support multi-process",
2050                         sas->dp_rx_name);
2051                 rc = EINVAL;
2052                 goto fail_dp_rx_multi_process;
2053         }
2054
2055         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
2056         if (dp_tx == NULL) {
2057                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2058                         "cannot find %s Tx datapath", sas->dp_tx_name);
2059                 rc = ENOENT;
2060                 goto fail_dp_tx;
2061         }
2062         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
2063                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2064                         "%s Tx datapath does not support multi-process",
2065                         sas->dp_tx_name);
2066                 rc = EINVAL;
2067                 goto fail_dp_tx_multi_process;
2068         }
2069
2070         sap->dp_rx = dp_rx;
2071         sap->dp_tx = dp_tx;
2072
2073         dev->process_private = sap;
2074         dev->rx_pkt_burst = dp_rx->pkt_burst;
2075         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2076         dev->tx_pkt_burst = dp_tx->pkt_burst;
2077         dev->dev_ops = &sfc_eth_dev_secondary_ops;
2078
2079         return 0;
2080
2081 fail_dp_tx_multi_process:
2082 fail_dp_tx:
2083 fail_dp_rx_multi_process:
2084 fail_dp_rx:
2085         free(sap);
2086
2087 fail_alloc_priv:
2088         return rc;
2089 }
2090
2091 static void
2092 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
2093 {
2094         free(dev->process_private);
2095         dev->process_private = NULL;
2096         dev->dev_ops = NULL;
2097         dev->tx_pkt_prepare = NULL;
2098         dev->tx_pkt_burst = NULL;
2099         dev->rx_pkt_burst = NULL;
2100 }
2101
2102 static void
2103 sfc_register_dp(void)
2104 {
2105         /* Register once */
2106         if (TAILQ_EMPTY(&sfc_dp_head)) {
2107                 /* Prefer EF10 datapath */
2108                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2109                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2110                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2111
2112                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2113                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2114                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2115         }
2116 }
2117
2118 static int
2119 sfc_eth_dev_init(struct rte_eth_dev *dev)
2120 {
2121         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2122         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2123         uint32_t logtype_main;
2124         struct sfc_adapter *sa;
2125         int rc;
2126         const efx_nic_cfg_t *encp;
2127         const struct rte_ether_addr *from;
2128
2129         sfc_register_dp();
2130
2131         logtype_main = sfc_register_logtype(&pci_dev->addr,
2132                                             SFC_LOGTYPE_MAIN_STR,
2133                                             RTE_LOG_NOTICE);
2134
2135         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2136                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2137
2138         /* Required for logging */
2139         sas->pci_addr = pci_dev->addr;
2140         sas->port_id = dev->data->port_id;
2141
2142         /*
2143          * Allocate process private data from heap, since it should not
2144          * be located in shared memory allocated using rte_malloc() API.
2145          */
2146         sa = calloc(1, sizeof(*sa));
2147         if (sa == NULL) {
2148                 rc = ENOMEM;
2149                 goto fail_alloc_sa;
2150         }
2151
2152         dev->process_private = sa;
2153
2154         /* Required for logging */
2155         sa->priv.shared = sas;
2156         sa->priv.logtype_main = logtype_main;
2157
2158         sa->eth_dev = dev;
2159
2160         /* Copy PCI device info to the dev->data */
2161         rte_eth_copy_pci_info(dev, pci_dev);
2162
2163         rc = sfc_kvargs_parse(sa);
2164         if (rc != 0)
2165                 goto fail_kvargs_parse;
2166
2167         sfc_log_init(sa, "entry");
2168
2169         dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
2170
2171         dev->data->mac_addrs = rte_zmalloc("sfc", RTE_ETHER_ADDR_LEN, 0);
2172         if (dev->data->mac_addrs == NULL) {
2173                 rc = ENOMEM;
2174                 goto fail_mac_addrs;
2175         }
2176
2177         sfc_adapter_lock_init(sa);
2178         sfc_adapter_lock(sa);
2179
2180         sfc_log_init(sa, "probing");
2181         rc = sfc_probe(sa);
2182         if (rc != 0)
2183                 goto fail_probe;
2184
2185         sfc_log_init(sa, "set device ops");
2186         rc = sfc_eth_dev_set_ops(dev);
2187         if (rc != 0)
2188                 goto fail_set_ops;
2189
2190         sfc_log_init(sa, "attaching");
2191         rc = sfc_attach(sa);
2192         if (rc != 0)
2193                 goto fail_attach;
2194
2195         encp = efx_nic_cfg_get(sa->nic);
2196
2197         /*
2198          * The arguments are really reverse order in comparison to
2199          * Linux kernel. Copy from NIC config to Ethernet device data.
2200          */
2201         from = (const struct rte_ether_addr *)(encp->enc_mac_addr);
2202         rte_ether_addr_copy(from, &dev->data->mac_addrs[0]);
2203
2204         sfc_adapter_unlock(sa);
2205
2206         sfc_log_init(sa, "done");
2207         return 0;
2208
2209 fail_attach:
2210         sfc_eth_dev_clear_ops(dev);
2211
2212 fail_set_ops:
2213         sfc_unprobe(sa);
2214
2215 fail_probe:
2216         sfc_adapter_unlock(sa);
2217         sfc_adapter_lock_fini(sa);
2218         rte_free(dev->data->mac_addrs);
2219         dev->data->mac_addrs = NULL;
2220
2221 fail_mac_addrs:
2222         sfc_kvargs_cleanup(sa);
2223
2224 fail_kvargs_parse:
2225         sfc_log_init(sa, "failed %d", rc);
2226         dev->process_private = NULL;
2227         free(sa);
2228
2229 fail_alloc_sa:
2230         SFC_ASSERT(rc > 0);
2231         return -rc;
2232 }
2233
2234 static int
2235 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2236 {
2237         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2238                 sfc_eth_dev_secondary_clear_ops(dev);
2239                 return 0;
2240         }
2241
2242         sfc_dev_close(dev);
2243
2244         return 0;
2245 }
2246
2247 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2248         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2249         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2250         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2251         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2252         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2253         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2254         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2255         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2256         { .vendor_id = 0 /* sentinel */ }
2257 };
2258
2259 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2260         struct rte_pci_device *pci_dev)
2261 {
2262         return rte_eth_dev_pci_generic_probe(pci_dev,
2263                 sizeof(struct sfc_adapter_shared), sfc_eth_dev_init);
2264 }
2265
2266 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2267 {
2268         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2269 }
2270
2271 static struct rte_pci_driver sfc_efx_pmd = {
2272         .id_table = pci_id_sfc_efx_map,
2273         .drv_flags =
2274                 RTE_PCI_DRV_INTR_LSC |
2275                 RTE_PCI_DRV_NEED_MAPPING,
2276         .probe = sfc_eth_dev_pci_probe,
2277         .remove = sfc_eth_dev_pci_remove,
2278 };
2279
2280 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2281 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2282 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2283 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2284         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2285         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2286         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2287         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2288         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2289         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2290
2291 RTE_INIT(sfc_driver_register_logtype)
2292 {
2293         int ret;
2294
2295         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2296                                                    RTE_LOG_NOTICE);
2297         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2298 }