drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright(c) 2019-2020 Xilinx, Inc.
   4  * Copyright(c) 2016-2019 Solarflare Communications Inc.
   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, rc = %d",
 397                                  ((enabled) ? "enable" : "disable"), desc, rc);
 398
 399                         /*
 400                          * For promiscuous and all-multicast filters a
 401                          * permission failure should be reported as an
 402                          * unsupported filter.
 403                          */
 404                         if (rc == EPERM)
 405                                 rc = ENOTSUP;
 406                 }
 407         }
 408
 409         sfc_adapter_unlock(sa);
 410         return rc;
 411 }
 412
 413 static int
 414 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 415 {
 416         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 417
 418         SFC_ASSERT(rc >= 0);
 419         return -rc;
 420 }
 421
 422 static int
 423 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 424 {
 425         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 426
 427         SFC_ASSERT(rc >= 0);
 428         return -rc;
 429 }
 430
 431 static int
 432 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 433 {
 434         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 435
 436         SFC_ASSERT(rc >= 0);
 437         return -rc;
 438 }
 439
 440 static int
 441 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 442 {
 443         int rc = sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 444
 445         SFC_ASSERT(rc >= 0);
 446         return -rc;
 447 }
 448
 449 static int
 450 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 451                    uint16_t nb_rx_desc, unsigned int socket_id,
 452                    const struct rte_eth_rxconf *rx_conf,
 453                    struct rte_mempool *mb_pool)
 454 {
 455         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 456         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 457         int rc;
 458
 459         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 460                      rx_queue_id, nb_rx_desc, socket_id);
 461
 462         sfc_adapter_lock(sa);
 463
 464         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 465                           rx_conf, mb_pool);
 466         if (rc != 0)
 467                 goto fail_rx_qinit;
 468
 469         dev->data->rx_queues[rx_queue_id] = sas->rxq_info[rx_queue_id].dp;
 470
 471         sfc_adapter_unlock(sa);
 472
 473         return 0;
 474
 475 fail_rx_qinit:
 476         sfc_adapter_unlock(sa);
 477         SFC_ASSERT(rc > 0);
 478         return -rc;
 479 }
 480
 481 static void
 482 sfc_rx_queue_release(void *queue)
 483 {
 484         struct sfc_dp_rxq *dp_rxq = queue;
 485         struct sfc_rxq *rxq;
 486         struct sfc_adapter *sa;
 487         unsigned int sw_index;
 488
 489         if (dp_rxq == NULL)
 490                 return;
 491
 492         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 493         sa = rxq->evq->sa;
 494         sfc_adapter_lock(sa);
 495
 496         sw_index = dp_rxq->dpq.queue_id;
 497
 498         sfc_log_init(sa, "RxQ=%u", sw_index);
 499
 500         sfc_rx_qfini(sa, sw_index);
 501
 502         sfc_adapter_unlock(sa);
 503 }
 504
 505 static int
 506 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 507                    uint16_t nb_tx_desc, unsigned int socket_id,
 508                    const struct rte_eth_txconf *tx_conf)
 509 {
 510         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 511         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 512         int rc;
 513
 514         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 515                      tx_queue_id, nb_tx_desc, socket_id);
 516
 517         sfc_adapter_lock(sa);
 518
 519         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 520         if (rc != 0)
 521                 goto fail_tx_qinit;
 522
 523         dev->data->tx_queues[tx_queue_id] = sas->txq_info[tx_queue_id].dp;
 524
 525         sfc_adapter_unlock(sa);
 526         return 0;
 527
 528 fail_tx_qinit:
 529         sfc_adapter_unlock(sa);
 530         SFC_ASSERT(rc > 0);
 531         return -rc;
 532 }
 533
 534 static void
 535 sfc_tx_queue_release(void *queue)
 536 {
 537         struct sfc_dp_txq *dp_txq = queue;
 538         struct sfc_txq *txq;
 539         unsigned int sw_index;
 540         struct sfc_adapter *sa;
 541
 542         if (dp_txq == NULL)
 543                 return;
 544
 545         txq = sfc_txq_by_dp_txq(dp_txq);
 546         sw_index = dp_txq->dpq.queue_id;
 547
 548         SFC_ASSERT(txq->evq != NULL);
 549         sa = txq->evq->sa;
 550
 551         sfc_log_init(sa, "TxQ = %u", sw_index);
 552
 553         sfc_adapter_lock(sa);
 554
 555         sfc_tx_qfini(sa, sw_index);
 556
 557         sfc_adapter_unlock(sa);
 558 }
 559
 560 /*
 561  * Some statistics are computed as A - B where A and B each increase
 562  * monotonically with some hardware counter(s) and the counters are read
 563  * asynchronously.
 564  *
 565  * If packet X is counted in A, but not counted in B yet, computed value is
 566  * greater than real.
 567  *
 568  * If packet X is not counted in A at the moment of reading the counter,
 569  * but counted in B at the moment of reading the counter, computed value
 570  * is less than real.
 571  *
 572  * However, counter which grows backward is worse evil than slightly wrong
 573  * value. So, let's try to guarantee that it never happens except may be
 574  * the case when the MAC stats are zeroed as a result of a NIC reset.
 575  */
 576 static void
 577 sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
 578 {
 579         if ((int64_t)(newval - *stat) > 0 || newval == 0)
 580                 *stat = newval;
 581 }
 582
 583 static int
 584 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 585 {
 586         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 587         struct sfc_port *port = &sa->port;
 588         uint64_t *mac_stats;
 589         int ret;
 590
 591         rte_spinlock_lock(&port->mac_stats_lock);
 592
 593         ret = sfc_port_update_mac_stats(sa);
 594         if (ret != 0)
 595                 goto unlock;
 596
 597         mac_stats = port->mac_stats_buf;
 598
 599         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 600                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 601                 stats->ipackets =
 602                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 603                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 604                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 605                 stats->opackets =
 606                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 607                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 608                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 609                 stats->ibytes =
 610                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 611                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 612                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 613                 stats->obytes =
 614                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 615                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 616                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 617                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 618                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 619         } else {
 620                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 621                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 622                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 623                 /*
 624                  * Take into account stats which are whenever supported
 625                  * on EF10. If some stat is not supported by current
 626                  * firmware variant or HW revision, it is guaranteed
 627                  * to be zero in mac_stats.
 628                  */
 629                 stats->imissed =
 630                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 631                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 632                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 633                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 634                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 635                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 636                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 637                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 638                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 639                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 640                 stats->ierrors =
 641                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 642                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 643                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 644                 /* no oerrors counters supported on EF10 */
 645
 646                 /* Exclude missed, errors and pauses from Rx packets */
 647                 sfc_update_diff_stat(&port->ipackets,
 648                         mac_stats[EFX_MAC_RX_PKTS] -
 649                         mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
 650                         stats->imissed - stats->ierrors);
 651                 stats->ipackets = port->ipackets;
 652         }
 653
 654 unlock:
 655         rte_spinlock_unlock(&port->mac_stats_lock);
 656         SFC_ASSERT(ret >= 0);
 657         return -ret;
 658 }
 659
 660 static int
 661 sfc_stats_reset(struct rte_eth_dev *dev)
 662 {
 663         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 664         struct sfc_port *port = &sa->port;
 665         int rc;
 666
 667         if (sa->state != SFC_ADAPTER_STARTED) {
 668                 /*
 669                  * The operation cannot be done if port is not started; it
 670                  * will be scheduled to be done during the next port start
 671                  */
 672                 port->mac_stats_reset_pending = B_TRUE;
 673                 return 0;
 674         }
 675
 676         rc = sfc_port_reset_mac_stats(sa);
 677         if (rc != 0)
 678                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 679
 680         SFC_ASSERT(rc >= 0);
 681         return -rc;
 682 }
 683
 684 static int
 685 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 686                unsigned int xstats_count)
 687 {
 688         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 689         struct sfc_port *port = &sa->port;
 690         uint64_t *mac_stats;
 691         int rc;
 692         unsigned int i;
 693         int nstats = 0;
 694
 695         rte_spinlock_lock(&port->mac_stats_lock);
 696
 697         rc = sfc_port_update_mac_stats(sa);
 698         if (rc != 0) {
 699                 SFC_ASSERT(rc > 0);
 700                 nstats = -rc;
 701                 goto unlock;
 702         }
 703
 704         mac_stats = port->mac_stats_buf;
 705
 706         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 707                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 708                         if (xstats != NULL && nstats < (int)xstats_count) {
 709                                 xstats[nstats].id = nstats;
 710                                 xstats[nstats].value = mac_stats[i];
 711                         }
 712                         nstats++;
 713                 }
 714         }
 715
 716 unlock:
 717         rte_spinlock_unlock(&port->mac_stats_lock);
 718
 719         return nstats;
 720 }
 721
 722 static int
 723 sfc_xstats_get_names(struct rte_eth_dev *dev,
 724                      struct rte_eth_xstat_name *xstats_names,
 725                      unsigned int xstats_count)
 726 {
 727         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 728         struct sfc_port *port = &sa->port;
 729         unsigned int i;
 730         unsigned int nstats = 0;
 731
 732         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 733                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 734                         if (xstats_names != NULL && nstats < xstats_count)
 735                                 strlcpy(xstats_names[nstats].name,
 736                                         efx_mac_stat_name(sa->nic, i),
 737                                         sizeof(xstats_names[0].name));
 738                         nstats++;
 739                 }
 740         }
 741
 742         return nstats;
 743 }
 744
 745 static int
 746 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 747                      uint64_t *values, unsigned int n)
 748 {
 749         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 750         struct sfc_port *port = &sa->port;
 751         uint64_t *mac_stats;
 752         unsigned int nb_supported = 0;
 753         unsigned int nb_written = 0;
 754         unsigned int i;
 755         int ret;
 756         int rc;
 757
 758         if (unlikely(values == NULL) ||
 759             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 760                 return port->mac_stats_nb_supported;
 761
 762         rte_spinlock_lock(&port->mac_stats_lock);
 763
 764         rc = sfc_port_update_mac_stats(sa);
 765         if (rc != 0) {
 766                 SFC_ASSERT(rc > 0);
 767                 ret = -rc;
 768                 goto unlock;
 769         }
 770
 771         mac_stats = port->mac_stats_buf;
 772
 773         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 774                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 775                         continue;
 776
 777                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 778                         values[nb_written++] = mac_stats[i];
 779
 780                 ++nb_supported;
 781         }
 782
 783         ret = nb_written;
 784
 785 unlock:
 786         rte_spinlock_unlock(&port->mac_stats_lock);
 787
 788         return ret;
 789 }
 790
 791 static int
 792 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 793                            struct rte_eth_xstat_name *xstats_names,
 794                            const uint64_t *ids, unsigned int size)
 795 {
 796         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 797         struct sfc_port *port = &sa->port;
 798         unsigned int nb_supported = 0;
 799         unsigned int nb_written = 0;
 800         unsigned int i;
 801
 802         if (unlikely(xstats_names == NULL) ||
 803             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 804                 return port->mac_stats_nb_supported;
 805
 806         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 807                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 808                         continue;
 809
 810                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 811                         char *name = xstats_names[nb_written++].name;
 812
 813                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 814                                 sizeof(xstats_names[0].name));
 815                 }
 816
 817                 ++nb_supported;
 818         }
 819
 820         return nb_written;
 821 }
 822
 823 static int
 824 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 825 {
 826         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 827         unsigned int wanted_fc, link_fc;
 828
 829         memset(fc_conf, 0, sizeof(*fc_conf));
 830
 831         sfc_adapter_lock(sa);
 832
 833         if (sa->state == SFC_ADAPTER_STARTED)
 834                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 835         else
 836                 link_fc = sa->port.flow_ctrl;
 837
 838         switch (link_fc) {
 839         case 0:
 840                 fc_conf->mode = RTE_FC_NONE;
 841                 break;
 842         case EFX_FCNTL_RESPOND:
 843                 fc_conf->mode = RTE_FC_RX_PAUSE;
 844                 break;
 845         case EFX_FCNTL_GENERATE:
 846                 fc_conf->mode = RTE_FC_TX_PAUSE;
 847                 break;
 848         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 849                 fc_conf->mode = RTE_FC_FULL;
 850                 break;
 851         default:
 852                 sfc_err(sa, "%s: unexpected flow control value %#x",
 853                         __func__, link_fc);
 854         }
 855
 856         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 857
 858         sfc_adapter_unlock(sa);
 859
 860         return 0;
 861 }
 862
 863 static int
 864 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 865 {
 866         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 867         struct sfc_port *port = &sa->port;
 868         unsigned int fcntl;
 869         int rc;
 870
 871         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 872             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 873             fc_conf->mac_ctrl_frame_fwd != 0) {
 874                 sfc_err(sa, "unsupported flow control settings specified");
 875                 rc = EINVAL;
 876                 goto fail_inval;
 877         }
 878
 879         switch (fc_conf->mode) {
 880         case RTE_FC_NONE:
 881                 fcntl = 0;
 882                 break;
 883         case RTE_FC_RX_PAUSE:
 884                 fcntl = EFX_FCNTL_RESPOND;
 885                 break;
 886         case RTE_FC_TX_PAUSE:
 887                 fcntl = EFX_FCNTL_GENERATE;
 888                 break;
 889         case RTE_FC_FULL:
 890                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 891                 break;
 892         default:
 893                 rc = EINVAL;
 894                 goto fail_inval;
 895         }
 896
 897         sfc_adapter_lock(sa);
 898
 899         if (sa->state == SFC_ADAPTER_STARTED) {
 900                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 901                 if (rc != 0)
 902                         goto fail_mac_fcntl_set;
 903         }
 904
 905         port->flow_ctrl = fcntl;
 906         port->flow_ctrl_autoneg = fc_conf->autoneg;
 907
 908         sfc_adapter_unlock(sa);
 909
 910         return 0;
 911
 912 fail_mac_fcntl_set:
 913         sfc_adapter_unlock(sa);
 914 fail_inval:
 915         SFC_ASSERT(rc > 0);
 916         return -rc;
 917 }
 918
 919 static int
 920 sfc_check_scatter_on_all_rx_queues(struct sfc_adapter *sa, size_t pdu)
 921 {
 922         struct sfc_adapter_shared * const sas = sfc_sa2shared(sa);
 923         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 924         boolean_t scatter_enabled;
 925         const char *error;
 926         unsigned int i;
 927
 928         for (i = 0; i < sas->rxq_count; i++) {
 929                 if ((sas->rxq_info[i].state & SFC_RXQ_INITIALIZED) == 0)
 930                         continue;
 931
 932                 scatter_enabled = (sas->rxq_info[i].type_flags &
 933                                    EFX_RXQ_FLAG_SCATTER);
 934
 935                 if (!sfc_rx_check_scatter(pdu, sa->rxq_ctrl[i].buf_size,
 936                                           encp->enc_rx_prefix_size,
 937                                           scatter_enabled, &error)) {
 938                         sfc_err(sa, "MTU check for RxQ %u failed: %s", i,
 939                                 error);
 940                         return EINVAL;
 941                 }
 942         }
 943
 944         return 0;
 945 }
 946
 947 static int
 948 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 949 {
 950         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
 951         size_t pdu = EFX_MAC_PDU(mtu);
 952         size_t old_pdu;
 953         int rc;
 954
 955         sfc_log_init(sa, "mtu=%u", mtu);
 956
 957         rc = EINVAL;
 958         if (pdu < EFX_MAC_PDU_MIN) {
 959                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 960                         (unsigned int)mtu, (unsigned int)pdu,
 961                         EFX_MAC_PDU_MIN);
 962                 goto fail_inval;
 963         }
 964         if (pdu > EFX_MAC_PDU_MAX) {
 965                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 966                         (unsigned int)mtu, (unsigned int)pdu,
 967                         (unsigned int)EFX_MAC_PDU_MAX);
 968                 goto fail_inval;
 969         }
 970
 971         sfc_adapter_lock(sa);
 972
 973         rc = sfc_check_scatter_on_all_rx_queues(sa, pdu);
 974         if (rc != 0)
 975                 goto fail_check_scatter;
 976
 977         if (pdu != sa->port.pdu) {
 978                 if (sa->state == SFC_ADAPTER_STARTED) {
 979                         sfc_stop(sa);
 980
 981                         old_pdu = sa->port.pdu;
 982                         sa->port.pdu = pdu;
 983                         rc = sfc_start(sa);
 984                         if (rc != 0)
 985                                 goto fail_start;
 986                 } else {
 987                         sa->port.pdu = pdu;
 988                 }
 989         }
 990
 991         /*
 992          * The driver does not use it, but other PMDs update jumbo frame
 993          * flag and max_rx_pkt_len when MTU is set.
 994          */
 995         if (mtu > RTE_ETHER_MAX_LEN) {
 996                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 997                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 998         }
 999
1000         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
1001
1002         sfc_adapter_unlock(sa);
1003
1004         sfc_log_init(sa, "done");
1005         return 0;
1006
1007 fail_start:
1008         sa->port.pdu = old_pdu;
1009         if (sfc_start(sa) != 0)
1010                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
1011                         "PDU max size - port is stopped",
1012                         (unsigned int)pdu, (unsigned int)old_pdu);
1013
1014 fail_check_scatter:
1015         sfc_adapter_unlock(sa);
1016
1017 fail_inval:
1018         sfc_log_init(sa, "failed %d", rc);
1019         SFC_ASSERT(rc > 0);
1020         return -rc;
1021 }
1022 static int
1023 sfc_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1024 {
1025         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1026         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
1027         struct sfc_port *port = &sa->port;
1028         struct rte_ether_addr *old_addr = &dev->data->mac_addrs[0];
1029         int rc = 0;
1030
1031         sfc_adapter_lock(sa);
1032
1033         /*
1034          * Copy the address to the device private data so that
1035          * it could be recalled in the case of adapter restart.
1036          */
1037         rte_ether_addr_copy(mac_addr, &port->default_mac_addr);
1038
1039         /*
1040          * Neither of the two following checks can return
1041          * an error. The new MAC address is preserved in
1042          * the device private data and can be activated
1043          * on the next port start if the user prevents
1044          * isolated mode from being enabled.
1045          */
1046         if (sfc_sa2shared(sa)->isolated) {
1047                 sfc_warn(sa, "isolated mode is active on the port");
1048                 sfc_warn(sa, "will not set MAC address");
1049                 goto unlock;
1050         }
1051
1052         if (sa->state != SFC_ADAPTER_STARTED) {
1053                 sfc_notice(sa, "the port is not started");
1054                 sfc_notice(sa, "the new MAC address will be set on port start");
1055
1056                 goto unlock;
1057         }
1058
1059         if (encp->enc_allow_set_mac_with_installed_filters) {
1060                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
1061                 if (rc != 0) {
1062                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
1063                         goto unlock;
1064                 }
1065
1066                 /*
1067                  * Changing the MAC address by means of MCDI request
1068                  * has no effect on received traffic, therefore
1069                  * we also need to update unicast filters
1070                  */
1071                 rc = sfc_set_rx_mode_unchecked(sa);
1072                 if (rc != 0) {
1073                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
1074                         /* Rollback the old address */
1075                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
1076                         (void)sfc_set_rx_mode_unchecked(sa);
1077                 }
1078         } else {
1079                 sfc_warn(sa, "cannot set MAC address with filters installed");
1080                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
1081                 sfc_warn(sa, "(some traffic may be dropped)");
1082
1083                 /*
1084                  * Since setting MAC address with filters installed is not
1085                  * allowed on the adapter, the new MAC address will be set
1086                  * by means of adapter restart. sfc_start() shall retrieve
1087                  * the new address from the device private data and set it.
1088                  */
1089                 sfc_stop(sa);
1090                 rc = sfc_start(sa);
1091                 if (rc != 0)
1092                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1093         }
1094
1095 unlock:
1096         if (rc != 0)
1097                 rte_ether_addr_copy(old_addr, &port->default_mac_addr);
1098
1099         sfc_adapter_unlock(sa);
1100
1101         SFC_ASSERT(rc >= 0);
1102         return -rc;
1103 }
1104
1105
1106 static int
1107 sfc_set_mc_addr_list(struct rte_eth_dev *dev,
1108                 struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr)
1109 {
1110         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1111         struct sfc_port *port = &sa->port;
1112         uint8_t *mc_addrs = port->mcast_addrs;
1113         int rc;
1114         unsigned int i;
1115
1116         if (sfc_sa2shared(sa)->isolated) {
1117                 sfc_err(sa, "isolated mode is active on the port");
1118                 sfc_err(sa, "will not set multicast address list");
1119                 return -ENOTSUP;
1120         }
1121
1122         if (mc_addrs == NULL)
1123                 return -ENOBUFS;
1124
1125         if (nb_mc_addr > port->max_mcast_addrs) {
1126                 sfc_err(sa, "too many multicast addresses: %u > %u",
1127                          nb_mc_addr, port->max_mcast_addrs);
1128                 return -EINVAL;
1129         }
1130
1131         for (i = 0; i < nb_mc_addr; ++i) {
1132                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1133                                  EFX_MAC_ADDR_LEN);
1134                 mc_addrs += EFX_MAC_ADDR_LEN;
1135         }
1136
1137         port->nb_mcast_addrs = nb_mc_addr;
1138
1139         if (sa->state != SFC_ADAPTER_STARTED)
1140                 return 0;
1141
1142         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1143                                         port->nb_mcast_addrs);
1144         if (rc != 0)
1145                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1146
1147         SFC_ASSERT(rc >= 0);
1148         return -rc;
1149 }
1150
1151 /*
1152  * The function is used by the secondary process as well. It must not
1153  * use any process-local pointers from the adapter data.
1154  */
1155 static void
1156 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1157                       struct rte_eth_rxq_info *qinfo)
1158 {
1159         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1160         struct sfc_rxq_info *rxq_info;
1161
1162         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1163
1164         rxq_info = &sas->rxq_info[rx_queue_id];
1165
1166         qinfo->mp = rxq_info->refill_mb_pool;
1167         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1168         qinfo->conf.rx_drop_en = 1;
1169         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1170         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1171         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1172                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1173                 qinfo->scattered_rx = 1;
1174         }
1175         qinfo->nb_desc = rxq_info->entries;
1176 }
1177
1178 /*
1179  * The function is used by the secondary process as well. It must not
1180  * use any process-local pointers from the adapter data.
1181  */
1182 static void
1183 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1184                       struct rte_eth_txq_info *qinfo)
1185 {
1186         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1187         struct sfc_txq_info *txq_info;
1188
1189         SFC_ASSERT(tx_queue_id < sas->txq_count);
1190
1191         txq_info = &sas->txq_info[tx_queue_id];
1192
1193         memset(qinfo, 0, sizeof(*qinfo));
1194
1195         qinfo->conf.offloads = txq_info->offloads;
1196         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1197         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1198         qinfo->nb_desc = txq_info->entries;
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 uint32_t
1206 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1207 {
1208         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1209         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1210         struct sfc_rxq_info *rxq_info;
1211
1212         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1213         rxq_info = &sas->rxq_info[rx_queue_id];
1214
1215         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1216                 return 0;
1217
1218         return sap->dp_rx->qdesc_npending(rxq_info->dp);
1219 }
1220
1221 /*
1222  * The function is used by the secondary process as well. It must not
1223  * use any process-local pointers from the adapter data.
1224  */
1225 static int
1226 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1227 {
1228         struct sfc_dp_rxq *dp_rxq = queue;
1229         const struct sfc_dp_rx *dp_rx;
1230
1231         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1232
1233         return offset < dp_rx->qdesc_npending(dp_rxq);
1234 }
1235
1236 /*
1237  * The function is used by the secondary process as well. It must not
1238  * use any process-local pointers from the adapter data.
1239  */
1240 static int
1241 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1242 {
1243         struct sfc_dp_rxq *dp_rxq = queue;
1244         const struct sfc_dp_rx *dp_rx;
1245
1246         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1247
1248         return dp_rx->qdesc_status(dp_rxq, offset);
1249 }
1250
1251 /*
1252  * The function is used by the secondary process as well. It must not
1253  * use any process-local pointers from the adapter data.
1254  */
1255 static int
1256 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1257 {
1258         struct sfc_dp_txq *dp_txq = queue;
1259         const struct sfc_dp_tx *dp_tx;
1260
1261         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1262
1263         return dp_tx->qdesc_status(dp_txq, offset);
1264 }
1265
1266 static int
1267 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1268 {
1269         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1270         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1271         int rc;
1272
1273         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1274
1275         sfc_adapter_lock(sa);
1276
1277         rc = EINVAL;
1278         if (sa->state != SFC_ADAPTER_STARTED)
1279                 goto fail_not_started;
1280
1281         if (sas->rxq_info[rx_queue_id].state != SFC_RXQ_INITIALIZED)
1282                 goto fail_not_setup;
1283
1284         rc = sfc_rx_qstart(sa, rx_queue_id);
1285         if (rc != 0)
1286                 goto fail_rx_qstart;
1287
1288         sas->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1289
1290         sfc_adapter_unlock(sa);
1291
1292         return 0;
1293
1294 fail_rx_qstart:
1295 fail_not_setup:
1296 fail_not_started:
1297         sfc_adapter_unlock(sa);
1298         SFC_ASSERT(rc > 0);
1299         return -rc;
1300 }
1301
1302 static int
1303 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1304 {
1305         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1306         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1307
1308         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1309
1310         sfc_adapter_lock(sa);
1311         sfc_rx_qstop(sa, rx_queue_id);
1312
1313         sas->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1314
1315         sfc_adapter_unlock(sa);
1316
1317         return 0;
1318 }
1319
1320 static int
1321 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1322 {
1323         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1324         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1325         int rc;
1326
1327         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1328
1329         sfc_adapter_lock(sa);
1330
1331         rc = EINVAL;
1332         if (sa->state != SFC_ADAPTER_STARTED)
1333                 goto fail_not_started;
1334
1335         if (sas->txq_info[tx_queue_id].state != SFC_TXQ_INITIALIZED)
1336                 goto fail_not_setup;
1337
1338         rc = sfc_tx_qstart(sa, tx_queue_id);
1339         if (rc != 0)
1340                 goto fail_tx_qstart;
1341
1342         sas->txq_info[tx_queue_id].deferred_started = B_TRUE;
1343
1344         sfc_adapter_unlock(sa);
1345         return 0;
1346
1347 fail_tx_qstart:
1348
1349 fail_not_setup:
1350 fail_not_started:
1351         sfc_adapter_unlock(sa);
1352         SFC_ASSERT(rc > 0);
1353         return -rc;
1354 }
1355
1356 static int
1357 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1358 {
1359         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1360         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1361
1362         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1363
1364         sfc_adapter_lock(sa);
1365
1366         sfc_tx_qstop(sa, tx_queue_id);
1367
1368         sas->txq_info[tx_queue_id].deferred_started = B_FALSE;
1369
1370         sfc_adapter_unlock(sa);
1371         return 0;
1372 }
1373
1374 static efx_tunnel_protocol_t
1375 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1376 {
1377         switch (rte_type) {
1378         case RTE_TUNNEL_TYPE_VXLAN:
1379                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1380         case RTE_TUNNEL_TYPE_GENEVE:
1381                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1382         default:
1383                 return EFX_TUNNEL_NPROTOS;
1384         }
1385 }
1386
1387 enum sfc_udp_tunnel_op_e {
1388         SFC_UDP_TUNNEL_ADD_PORT,
1389         SFC_UDP_TUNNEL_DEL_PORT,
1390 };
1391
1392 static int
1393 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1394                       struct rte_eth_udp_tunnel *tunnel_udp,
1395                       enum sfc_udp_tunnel_op_e op)
1396 {
1397         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1398         efx_tunnel_protocol_t tunnel_proto;
1399         int rc;
1400
1401         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1402                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1403                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1404                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1405
1406         tunnel_proto =
1407                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1408         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1409                 rc = ENOTSUP;
1410                 goto fail_bad_proto;
1411         }
1412
1413         sfc_adapter_lock(sa);
1414
1415         switch (op) {
1416         case SFC_UDP_TUNNEL_ADD_PORT:
1417                 rc = efx_tunnel_config_udp_add(sa->nic,
1418                                                tunnel_udp->udp_port,
1419                                                tunnel_proto);
1420                 break;
1421         case SFC_UDP_TUNNEL_DEL_PORT:
1422                 rc = efx_tunnel_config_udp_remove(sa->nic,
1423                                                   tunnel_udp->udp_port,
1424                                                   tunnel_proto);
1425                 break;
1426         default:
1427                 rc = EINVAL;
1428                 goto fail_bad_op;
1429         }
1430
1431         if (rc != 0)
1432                 goto fail_op;
1433
1434         if (sa->state == SFC_ADAPTER_STARTED) {
1435                 rc = efx_tunnel_reconfigure(sa->nic);
1436                 if (rc == EAGAIN) {
1437                         /*
1438                          * Configuration is accepted by FW and MC reboot
1439                          * is initiated to apply the changes. MC reboot
1440                          * will be handled in a usual way (MC reboot
1441                          * event on management event queue and adapter
1442                          * restart).
1443                          */
1444                         rc = 0;
1445                 } else if (rc != 0) {
1446                         goto fail_reconfigure;
1447                 }
1448         }
1449
1450         sfc_adapter_unlock(sa);
1451         return 0;
1452
1453 fail_reconfigure:
1454         /* Remove/restore entry since the change makes the trouble */
1455         switch (op) {
1456         case SFC_UDP_TUNNEL_ADD_PORT:
1457                 (void)efx_tunnel_config_udp_remove(sa->nic,
1458                                                    tunnel_udp->udp_port,
1459                                                    tunnel_proto);
1460                 break;
1461         case SFC_UDP_TUNNEL_DEL_PORT:
1462                 (void)efx_tunnel_config_udp_add(sa->nic,
1463                                                 tunnel_udp->udp_port,
1464                                                 tunnel_proto);
1465                 break;
1466         }
1467
1468 fail_op:
1469 fail_bad_op:
1470         sfc_adapter_unlock(sa);
1471
1472 fail_bad_proto:
1473         SFC_ASSERT(rc > 0);
1474         return -rc;
1475 }
1476
1477 static int
1478 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1479                             struct rte_eth_udp_tunnel *tunnel_udp)
1480 {
1481         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1482 }
1483
1484 static int
1485 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1486                             struct rte_eth_udp_tunnel *tunnel_udp)
1487 {
1488         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1489 }
1490
1491 /*
1492  * The function is used by the secondary process as well. It must not
1493  * use any process-local pointers from the adapter data.
1494  */
1495 static int
1496 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1497                           struct rte_eth_rss_conf *rss_conf)
1498 {
1499         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1500         struct sfc_rss *rss = &sas->rss;
1501
1502         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1503                 return -ENOTSUP;
1504
1505         /*
1506          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1507          * hence, conversion is done here to derive a correct set of ETH_RSS
1508          * flags which corresponds to the active EFX configuration stored
1509          * locally in 'sfc_adapter' and kept up-to-date
1510          */
1511         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(rss, rss->hash_types);
1512         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1513         if (rss_conf->rss_key != NULL)
1514                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1515
1516         return 0;
1517 }
1518
1519 static int
1520 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1521                         struct rte_eth_rss_conf *rss_conf)
1522 {
1523         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1524         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1525         unsigned int efx_hash_types;
1526         int rc = 0;
1527
1528         if (sfc_sa2shared(sa)->isolated)
1529                 return -ENOTSUP;
1530
1531         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1532                 sfc_err(sa, "RSS is not available");
1533                 return -ENOTSUP;
1534         }
1535
1536         if (rss->channels == 0) {
1537                 sfc_err(sa, "RSS is not configured");
1538                 return -EINVAL;
1539         }
1540
1541         if ((rss_conf->rss_key != NULL) &&
1542             (rss_conf->rss_key_len != sizeof(rss->key))) {
1543                 sfc_err(sa, "RSS key size is wrong (should be %zu)",
1544                         sizeof(rss->key));
1545                 return -EINVAL;
1546         }
1547
1548         sfc_adapter_lock(sa);
1549
1550         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1551         if (rc != 0)
1552                 goto fail_rx_hf_rte_to_efx;
1553
1554         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1555                                    rss->hash_alg, efx_hash_types, B_TRUE);
1556         if (rc != 0)
1557                 goto fail_scale_mode_set;
1558
1559         if (rss_conf->rss_key != NULL) {
1560                 if (sa->state == SFC_ADAPTER_STARTED) {
1561                         rc = efx_rx_scale_key_set(sa->nic,
1562                                                   EFX_RSS_CONTEXT_DEFAULT,
1563                                                   rss_conf->rss_key,
1564                                                   sizeof(rss->key));
1565                         if (rc != 0)
1566                                 goto fail_scale_key_set;
1567                 }
1568
1569                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1570         }
1571
1572         rss->hash_types = efx_hash_types;
1573
1574         sfc_adapter_unlock(sa);
1575
1576         return 0;
1577
1578 fail_scale_key_set:
1579         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1580                                   EFX_RX_HASHALG_TOEPLITZ,
1581                                   rss->hash_types, B_TRUE) != 0)
1582                 sfc_err(sa, "failed to restore RSS mode");
1583
1584 fail_scale_mode_set:
1585 fail_rx_hf_rte_to_efx:
1586         sfc_adapter_unlock(sa);
1587         return -rc;
1588 }
1589
1590 /*
1591  * The function is used by the secondary process as well. It must not
1592  * use any process-local pointers from the adapter data.
1593  */
1594 static int
1595 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1596                        struct rte_eth_rss_reta_entry64 *reta_conf,
1597                        uint16_t reta_size)
1598 {
1599         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1600         struct sfc_rss *rss = &sas->rss;
1601         int entry;
1602
1603         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || sas->isolated)
1604                 return -ENOTSUP;
1605
1606         if (rss->channels == 0)
1607                 return -EINVAL;
1608
1609         if (reta_size != EFX_RSS_TBL_SIZE)
1610                 return -EINVAL;
1611
1612         for (entry = 0; entry < reta_size; entry++) {
1613                 int grp = entry / RTE_RETA_GROUP_SIZE;
1614                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1615
1616                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1617                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1618         }
1619
1620         return 0;
1621 }
1622
1623 static int
1624 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1625                         struct rte_eth_rss_reta_entry64 *reta_conf,
1626                         uint16_t reta_size)
1627 {
1628         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1629         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1630         unsigned int *rss_tbl_new;
1631         uint16_t entry;
1632         int rc = 0;
1633
1634
1635         if (sfc_sa2shared(sa)->isolated)
1636                 return -ENOTSUP;
1637
1638         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1639                 sfc_err(sa, "RSS is not available");
1640                 return -ENOTSUP;
1641         }
1642
1643         if (rss->channels == 0) {
1644                 sfc_err(sa, "RSS is not configured");
1645                 return -EINVAL;
1646         }
1647
1648         if (reta_size != EFX_RSS_TBL_SIZE) {
1649                 sfc_err(sa, "RETA size is wrong (should be %u)",
1650                         EFX_RSS_TBL_SIZE);
1651                 return -EINVAL;
1652         }
1653
1654         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1655         if (rss_tbl_new == NULL)
1656                 return -ENOMEM;
1657
1658         sfc_adapter_lock(sa);
1659
1660         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1661
1662         for (entry = 0; entry < reta_size; entry++) {
1663                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1664                 struct rte_eth_rss_reta_entry64 *grp;
1665
1666                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1667
1668                 if (grp->mask & (1ull << grp_idx)) {
1669                         if (grp->reta[grp_idx] >= rss->channels) {
1670                                 rc = EINVAL;
1671                                 goto bad_reta_entry;
1672                         }
1673                         rss_tbl_new[entry] = grp->reta[grp_idx];
1674                 }
1675         }
1676
1677         if (sa->state == SFC_ADAPTER_STARTED) {
1678                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1679                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1680                 if (rc != 0)
1681                         goto fail_scale_tbl_set;
1682         }
1683
1684         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1685
1686 fail_scale_tbl_set:
1687 bad_reta_entry:
1688         sfc_adapter_unlock(sa);
1689
1690         rte_free(rss_tbl_new);
1691
1692         SFC_ASSERT(rc >= 0);
1693         return -rc;
1694 }
1695
1696 static int
1697 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1698                     enum rte_filter_op filter_op,
1699                     void *arg)
1700 {
1701         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1702         int rc = ENOTSUP;
1703
1704         sfc_log_init(sa, "entry");
1705
1706         switch (filter_type) {
1707         case RTE_ETH_FILTER_NONE:
1708                 sfc_err(sa, "Global filters configuration not supported");
1709                 break;
1710         case RTE_ETH_FILTER_MACVLAN:
1711                 sfc_err(sa, "MACVLAN filters not supported");
1712                 break;
1713         case RTE_ETH_FILTER_ETHERTYPE:
1714                 sfc_err(sa, "EtherType filters not supported");
1715                 break;
1716         case RTE_ETH_FILTER_FLEXIBLE:
1717                 sfc_err(sa, "Flexible filters not supported");
1718                 break;
1719         case RTE_ETH_FILTER_SYN:
1720                 sfc_err(sa, "SYN filters not supported");
1721                 break;
1722         case RTE_ETH_FILTER_NTUPLE:
1723                 sfc_err(sa, "NTUPLE filters not supported");
1724                 break;
1725         case RTE_ETH_FILTER_TUNNEL:
1726                 sfc_err(sa, "Tunnel filters not supported");
1727                 break;
1728         case RTE_ETH_FILTER_FDIR:
1729                 sfc_err(sa, "Flow Director filters not supported");
1730                 break;
1731         case RTE_ETH_FILTER_HASH:
1732                 sfc_err(sa, "Hash filters not supported");
1733                 break;
1734         case RTE_ETH_FILTER_GENERIC:
1735                 if (filter_op != RTE_ETH_FILTER_GET) {
1736                         rc = EINVAL;
1737                 } else {
1738                         *(const void **)arg = &sfc_flow_ops;
1739                         rc = 0;
1740                 }
1741                 break;
1742         default:
1743                 sfc_err(sa, "Unknown filter type %u", filter_type);
1744                 break;
1745         }
1746
1747         sfc_log_init(sa, "exit: %d", -rc);
1748         SFC_ASSERT(rc >= 0);
1749         return -rc;
1750 }
1751
1752 static int
1753 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1754 {
1755         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1756
1757         /*
1758          * If Rx datapath does not provide callback to check mempool,
1759          * all pools are supported.
1760          */
1761         if (sap->dp_rx->pool_ops_supported == NULL)
1762                 return 1;
1763
1764         return sap->dp_rx->pool_ops_supported(pool);
1765 }
1766
1767 static int
1768 sfc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
1769 {
1770         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1771         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1772         struct sfc_rxq_info *rxq_info;
1773
1774         SFC_ASSERT(queue_id < sas->rxq_count);
1775         rxq_info = &sas->rxq_info[queue_id];
1776
1777         return sap->dp_rx->intr_enable(rxq_info->dp);
1778 }
1779
1780 static int
1781 sfc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
1782 {
1783         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1784         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1785         struct sfc_rxq_info *rxq_info;
1786
1787         SFC_ASSERT(queue_id < sas->rxq_count);
1788         rxq_info = &sas->rxq_info[queue_id];
1789
1790         return sap->dp_rx->intr_disable(rxq_info->dp);
1791 }
1792
1793 static const struct eth_dev_ops sfc_eth_dev_ops = {
1794         .dev_configure                  = sfc_dev_configure,
1795         .dev_start                      = sfc_dev_start,
1796         .dev_stop                       = sfc_dev_stop,
1797         .dev_set_link_up                = sfc_dev_set_link_up,
1798         .dev_set_link_down              = sfc_dev_set_link_down,
1799         .dev_close                      = sfc_dev_close,
1800         .promiscuous_enable             = sfc_dev_promisc_enable,
1801         .promiscuous_disable            = sfc_dev_promisc_disable,
1802         .allmulticast_enable            = sfc_dev_allmulti_enable,
1803         .allmulticast_disable           = sfc_dev_allmulti_disable,
1804         .link_update                    = sfc_dev_link_update,
1805         .stats_get                      = sfc_stats_get,
1806         .stats_reset                    = sfc_stats_reset,
1807         .xstats_get                     = sfc_xstats_get,
1808         .xstats_reset                   = sfc_stats_reset,
1809         .xstats_get_names               = sfc_xstats_get_names,
1810         .dev_infos_get                  = sfc_dev_infos_get,
1811         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1812         .mtu_set                        = sfc_dev_set_mtu,
1813         .rx_queue_start                 = sfc_rx_queue_start,
1814         .rx_queue_stop                  = sfc_rx_queue_stop,
1815         .tx_queue_start                 = sfc_tx_queue_start,
1816         .tx_queue_stop                  = sfc_tx_queue_stop,
1817         .rx_queue_setup                 = sfc_rx_queue_setup,
1818         .rx_queue_release               = sfc_rx_queue_release,
1819         .rx_queue_count                 = sfc_rx_queue_count,
1820         .rx_descriptor_done             = sfc_rx_descriptor_done,
1821         .rx_descriptor_status           = sfc_rx_descriptor_status,
1822         .tx_descriptor_status           = sfc_tx_descriptor_status,
1823         .rx_queue_intr_enable           = sfc_rx_queue_intr_enable,
1824         .rx_queue_intr_disable          = sfc_rx_queue_intr_disable,
1825         .tx_queue_setup                 = sfc_tx_queue_setup,
1826         .tx_queue_release               = sfc_tx_queue_release,
1827         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1828         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1829         .mac_addr_set                   = sfc_mac_addr_set,
1830         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1831         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1832         .reta_update                    = sfc_dev_rss_reta_update,
1833         .reta_query                     = sfc_dev_rss_reta_query,
1834         .rss_hash_update                = sfc_dev_rss_hash_update,
1835         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1836         .filter_ctrl                    = sfc_dev_filter_ctrl,
1837         .set_mc_addr_list               = sfc_set_mc_addr_list,
1838         .rxq_info_get                   = sfc_rx_queue_info_get,
1839         .txq_info_get                   = sfc_tx_queue_info_get,
1840         .fw_version_get                 = sfc_fw_version_get,
1841         .xstats_get_by_id               = sfc_xstats_get_by_id,
1842         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1843         .pool_ops_supported             = sfc_pool_ops_supported,
1844 };
1845
1846 /**
1847  * Duplicate a string in potentially shared memory required for
1848  * multi-process support.
1849  *
1850  * strdup() allocates from process-local heap/memory.
1851  */
1852 static char *
1853 sfc_strdup(const char *str)
1854 {
1855         size_t size;
1856         char *copy;
1857
1858         if (str == NULL)
1859                 return NULL;
1860
1861         size = strlen(str) + 1;
1862         copy = rte_malloc(__func__, size, 0);
1863         if (copy != NULL)
1864                 rte_memcpy(copy, str, size);
1865
1866         return copy;
1867 }
1868
1869 static int
1870 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1871 {
1872         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1873         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1874         const struct sfc_dp_rx *dp_rx;
1875         const struct sfc_dp_tx *dp_tx;
1876         const efx_nic_cfg_t *encp;
1877         unsigned int avail_caps = 0;
1878         const char *rx_name = NULL;
1879         const char *tx_name = NULL;
1880         int rc;
1881
1882         switch (sa->family) {
1883         case EFX_FAMILY_HUNTINGTON:
1884         case EFX_FAMILY_MEDFORD:
1885         case EFX_FAMILY_MEDFORD2:
1886                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1887                 break;
1888         default:
1889                 break;
1890         }
1891
1892         encp = efx_nic_cfg_get(sa->nic);
1893         if (encp->enc_rx_es_super_buffer_supported)
1894                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1895
1896         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1897                                 sfc_kvarg_string_handler, &rx_name);
1898         if (rc != 0)
1899                 goto fail_kvarg_rx_datapath;
1900
1901         if (rx_name != NULL) {
1902                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1903                 if (dp_rx == NULL) {
1904                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1905                         rc = ENOENT;
1906                         goto fail_dp_rx;
1907                 }
1908                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
1909                         sfc_err(sa,
1910                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1911                                 rx_name);
1912                         rc = EINVAL;
1913                         goto fail_dp_rx_caps;
1914                 }
1915         } else {
1916                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1917                 if (dp_rx == NULL) {
1918                         sfc_err(sa, "Rx datapath by caps %#x not found",
1919                                 avail_caps);
1920                         rc = ENOENT;
1921                         goto fail_dp_rx;
1922                 }
1923         }
1924
1925         sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
1926         if (sas->dp_rx_name == NULL) {
1927                 rc = ENOMEM;
1928                 goto fail_dp_rx_name;
1929         }
1930
1931         sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
1932
1933         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1934                                 sfc_kvarg_string_handler, &tx_name);
1935         if (rc != 0)
1936                 goto fail_kvarg_tx_datapath;
1937
1938         if (tx_name != NULL) {
1939                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1940                 if (dp_tx == NULL) {
1941                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1942                         rc = ENOENT;
1943                         goto fail_dp_tx;
1944                 }
1945                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
1946                         sfc_err(sa,
1947                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1948                                 tx_name);
1949                         rc = EINVAL;
1950                         goto fail_dp_tx_caps;
1951                 }
1952         } else {
1953                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1954                 if (dp_tx == NULL) {
1955                         sfc_err(sa, "Tx datapath by caps %#x not found",
1956                                 avail_caps);
1957                         rc = ENOENT;
1958                         goto fail_dp_tx;
1959                 }
1960         }
1961
1962         sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
1963         if (sas->dp_tx_name == NULL) {
1964                 rc = ENOMEM;
1965                 goto fail_dp_tx_name;
1966         }
1967
1968         sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
1969
1970         sa->priv.dp_rx = dp_rx;
1971         sa->priv.dp_tx = dp_tx;
1972
1973         dev->rx_pkt_burst = dp_rx->pkt_burst;
1974         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
1975         dev->tx_pkt_burst = dp_tx->pkt_burst;
1976
1977         dev->dev_ops = &sfc_eth_dev_ops;
1978
1979         return 0;
1980
1981 fail_dp_tx_name:
1982 fail_dp_tx_caps:
1983 fail_dp_tx:
1984 fail_kvarg_tx_datapath:
1985         rte_free(sas->dp_rx_name);
1986         sas->dp_rx_name = NULL;
1987
1988 fail_dp_rx_name:
1989 fail_dp_rx_caps:
1990 fail_dp_rx:
1991 fail_kvarg_rx_datapath:
1992         return rc;
1993 }
1994
1995 static void
1996 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1997 {
1998         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1999         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2000
2001         dev->dev_ops = NULL;
2002         dev->tx_pkt_prepare = NULL;
2003         dev->rx_pkt_burst = NULL;
2004         dev->tx_pkt_burst = NULL;
2005
2006         rte_free(sas->dp_tx_name);
2007         sas->dp_tx_name = NULL;
2008         sa->priv.dp_tx = NULL;
2009
2010         rte_free(sas->dp_rx_name);
2011         sas->dp_rx_name = NULL;
2012         sa->priv.dp_rx = NULL;
2013 }
2014
2015 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
2016         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
2017         .rx_queue_count                 = sfc_rx_queue_count,
2018         .rx_descriptor_done             = sfc_rx_descriptor_done,
2019         .rx_descriptor_status           = sfc_rx_descriptor_status,
2020         .tx_descriptor_status           = sfc_tx_descriptor_status,
2021         .reta_query                     = sfc_dev_rss_reta_query,
2022         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
2023         .rxq_info_get                   = sfc_rx_queue_info_get,
2024         .txq_info_get                   = sfc_tx_queue_info_get,
2025 };
2026
2027 static int
2028 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
2029 {
2030         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2031         struct sfc_adapter_priv *sap;
2032         const struct sfc_dp_rx *dp_rx;
2033         const struct sfc_dp_tx *dp_tx;
2034         int rc;
2035
2036         /*
2037          * Allocate process private data from heap, since it should not
2038          * be located in shared memory allocated using rte_malloc() API.
2039          */
2040         sap = calloc(1, sizeof(*sap));
2041         if (sap == NULL) {
2042                 rc = ENOMEM;
2043                 goto fail_alloc_priv;
2044         }
2045
2046         sap->logtype_main = logtype_main;
2047
2048         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
2049         if (dp_rx == NULL) {
2050                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2051                         "cannot find %s Rx datapath", sas->dp_rx_name);
2052                 rc = ENOENT;
2053                 goto fail_dp_rx;
2054         }
2055         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
2056                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2057                         "%s Rx datapath does not support multi-process",
2058                         sas->dp_rx_name);
2059                 rc = EINVAL;
2060                 goto fail_dp_rx_multi_process;
2061         }
2062
2063         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
2064         if (dp_tx == NULL) {
2065                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2066                         "cannot find %s Tx datapath", sas->dp_tx_name);
2067                 rc = ENOENT;
2068                 goto fail_dp_tx;
2069         }
2070         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
2071                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2072                         "%s Tx datapath does not support multi-process",
2073                         sas->dp_tx_name);
2074                 rc = EINVAL;
2075                 goto fail_dp_tx_multi_process;
2076         }
2077
2078         sap->dp_rx = dp_rx;
2079         sap->dp_tx = dp_tx;
2080
2081         dev->process_private = sap;
2082         dev->rx_pkt_burst = dp_rx->pkt_burst;
2083         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2084         dev->tx_pkt_burst = dp_tx->pkt_burst;
2085         dev->dev_ops = &sfc_eth_dev_secondary_ops;
2086
2087         return 0;
2088
2089 fail_dp_tx_multi_process:
2090 fail_dp_tx:
2091 fail_dp_rx_multi_process:
2092 fail_dp_rx:
2093         free(sap);
2094
2095 fail_alloc_priv:
2096         return rc;
2097 }
2098
2099 static void
2100 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
2101 {
2102         free(dev->process_private);
2103         dev->process_private = NULL;
2104         dev->dev_ops = NULL;
2105         dev->tx_pkt_prepare = NULL;
2106         dev->tx_pkt_burst = NULL;
2107         dev->rx_pkt_burst = NULL;
2108 }
2109
2110 static void
2111 sfc_register_dp(void)
2112 {
2113         /* Register once */
2114         if (TAILQ_EMPTY(&sfc_dp_head)) {
2115                 /* Prefer EF10 datapath */
2116                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2117                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2118                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2119
2120                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2121                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2122                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2123         }
2124 }
2125
2126 static int
2127 sfc_eth_dev_init(struct rte_eth_dev *dev)
2128 {
2129         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2130         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2131         uint32_t logtype_main;
2132         struct sfc_adapter *sa;
2133         int rc;
2134         const efx_nic_cfg_t *encp;
2135         const struct rte_ether_addr *from;
2136
2137         sfc_register_dp();
2138
2139         logtype_main = sfc_register_logtype(&pci_dev->addr,
2140                                             SFC_LOGTYPE_MAIN_STR,
2141                                             RTE_LOG_NOTICE);
2142
2143         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2144                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2145
2146         /* Required for logging */
2147         sas->pci_addr = pci_dev->addr;
2148         sas->port_id = dev->data->port_id;
2149
2150         /*
2151          * Allocate process private data from heap, since it should not
2152          * be located in shared memory allocated using rte_malloc() API.
2153          */
2154         sa = calloc(1, sizeof(*sa));
2155         if (sa == NULL) {
2156                 rc = ENOMEM;
2157                 goto fail_alloc_sa;
2158         }
2159
2160         dev->process_private = sa;
2161
2162         /* Required for logging */
2163         sa->priv.shared = sas;
2164         sa->priv.logtype_main = logtype_main;
2165
2166         sa->eth_dev = dev;
2167
2168         /* Copy PCI device info to the dev->data */
2169         rte_eth_copy_pci_info(dev, pci_dev);
2170
2171         rc = sfc_kvargs_parse(sa);
2172         if (rc != 0)
2173                 goto fail_kvargs_parse;
2174
2175         sfc_log_init(sa, "entry");
2176
2177         dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
2178
2179         dev->data->mac_addrs = rte_zmalloc("sfc", RTE_ETHER_ADDR_LEN, 0);
2180         if (dev->data->mac_addrs == NULL) {
2181                 rc = ENOMEM;
2182                 goto fail_mac_addrs;
2183         }
2184
2185         sfc_adapter_lock_init(sa);
2186         sfc_adapter_lock(sa);
2187
2188         sfc_log_init(sa, "probing");
2189         rc = sfc_probe(sa);
2190         if (rc != 0)
2191                 goto fail_probe;
2192
2193         sfc_log_init(sa, "set device ops");
2194         rc = sfc_eth_dev_set_ops(dev);
2195         if (rc != 0)
2196                 goto fail_set_ops;
2197
2198         sfc_log_init(sa, "attaching");
2199         rc = sfc_attach(sa);
2200         if (rc != 0)
2201                 goto fail_attach;
2202
2203         encp = efx_nic_cfg_get(sa->nic);
2204
2205         /*
2206          * The arguments are really reverse order in comparison to
2207          * Linux kernel. Copy from NIC config to Ethernet device data.
2208          */
2209         from = (const struct rte_ether_addr *)(encp->enc_mac_addr);
2210         rte_ether_addr_copy(from, &dev->data->mac_addrs[0]);
2211
2212         sfc_adapter_unlock(sa);
2213
2214         sfc_log_init(sa, "done");
2215         return 0;
2216
2217 fail_attach:
2218         sfc_eth_dev_clear_ops(dev);
2219
2220 fail_set_ops:
2221         sfc_unprobe(sa);
2222
2223 fail_probe:
2224         sfc_adapter_unlock(sa);
2225         sfc_adapter_lock_fini(sa);
2226         rte_free(dev->data->mac_addrs);
2227         dev->data->mac_addrs = NULL;
2228
2229 fail_mac_addrs:
2230         sfc_kvargs_cleanup(sa);
2231
2232 fail_kvargs_parse:
2233         sfc_log_init(sa, "failed %d", rc);
2234         dev->process_private = NULL;
2235         free(sa);
2236
2237 fail_alloc_sa:
2238         SFC_ASSERT(rc > 0);
2239         return -rc;
2240 }
2241
2242 static int
2243 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2244 {
2245         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2246                 sfc_eth_dev_secondary_clear_ops(dev);
2247                 return 0;
2248         }
2249
2250         sfc_dev_close(dev);
2251
2252         return 0;
2253 }
2254
2255 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2256         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2257         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2258         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2259         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2260         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2261         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2262         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2263         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2264         { .vendor_id = 0 /* sentinel */ }
2265 };
2266
2267 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2268         struct rte_pci_device *pci_dev)
2269 {
2270         return rte_eth_dev_pci_generic_probe(pci_dev,
2271                 sizeof(struct sfc_adapter_shared), sfc_eth_dev_init);
2272 }
2273
2274 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2275 {
2276         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2277 }
2278
2279 static struct rte_pci_driver sfc_efx_pmd = {
2280         .id_table = pci_id_sfc_efx_map,
2281         .drv_flags =
2282                 RTE_PCI_DRV_INTR_LSC |
2283                 RTE_PCI_DRV_NEED_MAPPING,
2284         .probe = sfc_eth_dev_pci_probe,
2285         .remove = sfc_eth_dev_pci_remove,
2286 };
2287
2288 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2289 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2290 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2291 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2292         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2293         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2294         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2295         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2296         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2297         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2298
2299 RTE_INIT(sfc_driver_register_logtype)
2300 {
2301         int ret;
2302
2303         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2304                                                    RTE_LOG_NOTICE);
2305         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2306 }