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         if (rte_is_same_ether_addr(mac_addr, &port->default_mac_addr))
1034                 goto unlock;
1035
1036         /*
1037          * Copy the address to the device private data so that
1038          * it could be recalled in the case of adapter restart.
1039          */
1040         rte_ether_addr_copy(mac_addr, &port->default_mac_addr);
1041
1042         /*
1043          * Neither of the two following checks can return
1044          * an error. The new MAC address is preserved in
1045          * the device private data and can be activated
1046          * on the next port start if the user prevents
1047          * isolated mode from being enabled.
1048          */
1049         if (sfc_sa2shared(sa)->isolated) {
1050                 sfc_warn(sa, "isolated mode is active on the port");
1051                 sfc_warn(sa, "will not set MAC address");
1052                 goto unlock;
1053         }
1054
1055         if (sa->state != SFC_ADAPTER_STARTED) {
1056                 sfc_notice(sa, "the port is not started");
1057                 sfc_notice(sa, "the new MAC address will be set on port start");
1058
1059                 goto unlock;
1060         }
1061
1062         if (encp->enc_allow_set_mac_with_installed_filters) {
1063                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
1064                 if (rc != 0) {
1065                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
1066                         goto unlock;
1067                 }
1068
1069                 /*
1070                  * Changing the MAC address by means of MCDI request
1071                  * has no effect on received traffic, therefore
1072                  * we also need to update unicast filters
1073                  */
1074                 rc = sfc_set_rx_mode_unchecked(sa);
1075                 if (rc != 0) {
1076                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
1077                         /* Rollback the old address */
1078                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
1079                         (void)sfc_set_rx_mode_unchecked(sa);
1080                 }
1081         } else {
1082                 sfc_warn(sa, "cannot set MAC address with filters installed");
1083                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
1084                 sfc_warn(sa, "(some traffic may be dropped)");
1085
1086                 /*
1087                  * Since setting MAC address with filters installed is not
1088                  * allowed on the adapter, the new MAC address will be set
1089                  * by means of adapter restart. sfc_start() shall retrieve
1090                  * the new address from the device private data and set it.
1091                  */
1092                 sfc_stop(sa);
1093                 rc = sfc_start(sa);
1094                 if (rc != 0)
1095                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1096         }
1097
1098 unlock:
1099         if (rc != 0)
1100                 rte_ether_addr_copy(old_addr, &port->default_mac_addr);
1101
1102         sfc_adapter_unlock(sa);
1103
1104         SFC_ASSERT(rc >= 0);
1105         return -rc;
1106 }
1107
1108
1109 static int
1110 sfc_set_mc_addr_list(struct rte_eth_dev *dev,
1111                 struct rte_ether_addr *mc_addr_set, uint32_t nb_mc_addr)
1112 {
1113         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1114         struct sfc_port *port = &sa->port;
1115         uint8_t *mc_addrs = port->mcast_addrs;
1116         int rc;
1117         unsigned int i;
1118
1119         if (sfc_sa2shared(sa)->isolated) {
1120                 sfc_err(sa, "isolated mode is active on the port");
1121                 sfc_err(sa, "will not set multicast address list");
1122                 return -ENOTSUP;
1123         }
1124
1125         if (mc_addrs == NULL)
1126                 return -ENOBUFS;
1127
1128         if (nb_mc_addr > port->max_mcast_addrs) {
1129                 sfc_err(sa, "too many multicast addresses: %u > %u",
1130                          nb_mc_addr, port->max_mcast_addrs);
1131                 return -EINVAL;
1132         }
1133
1134         for (i = 0; i < nb_mc_addr; ++i) {
1135                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1136                                  EFX_MAC_ADDR_LEN);
1137                 mc_addrs += EFX_MAC_ADDR_LEN;
1138         }
1139
1140         port->nb_mcast_addrs = nb_mc_addr;
1141
1142         if (sa->state != SFC_ADAPTER_STARTED)
1143                 return 0;
1144
1145         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1146                                         port->nb_mcast_addrs);
1147         if (rc != 0)
1148                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1149
1150         SFC_ASSERT(rc >= 0);
1151         return -rc;
1152 }
1153
1154 /*
1155  * The function is used by the secondary process as well. It must not
1156  * use any process-local pointers from the adapter data.
1157  */
1158 static void
1159 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1160                       struct rte_eth_rxq_info *qinfo)
1161 {
1162         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1163         struct sfc_rxq_info *rxq_info;
1164
1165         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1166
1167         rxq_info = &sas->rxq_info[rx_queue_id];
1168
1169         qinfo->mp = rxq_info->refill_mb_pool;
1170         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1171         qinfo->conf.rx_drop_en = 1;
1172         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1173         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1174         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1175                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1176                 qinfo->scattered_rx = 1;
1177         }
1178         qinfo->nb_desc = rxq_info->entries;
1179 }
1180
1181 /*
1182  * The function is used by the secondary process as well. It must not
1183  * use any process-local pointers from the adapter data.
1184  */
1185 static void
1186 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1187                       struct rte_eth_txq_info *qinfo)
1188 {
1189         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1190         struct sfc_txq_info *txq_info;
1191
1192         SFC_ASSERT(tx_queue_id < sas->txq_count);
1193
1194         txq_info = &sas->txq_info[tx_queue_id];
1195
1196         memset(qinfo, 0, sizeof(*qinfo));
1197
1198         qinfo->conf.offloads = txq_info->offloads;
1199         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1200         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1201         qinfo->nb_desc = txq_info->entries;
1202 }
1203
1204 /*
1205  * The function is used by the secondary process as well. It must not
1206  * use any process-local pointers from the adapter data.
1207  */
1208 static uint32_t
1209 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1210 {
1211         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1212         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1213         struct sfc_rxq_info *rxq_info;
1214
1215         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1216         rxq_info = &sas->rxq_info[rx_queue_id];
1217
1218         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1219                 return 0;
1220
1221         return sap->dp_rx->qdesc_npending(rxq_info->dp);
1222 }
1223
1224 /*
1225  * The function is used by the secondary process as well. It must not
1226  * use any process-local pointers from the adapter data.
1227  */
1228 static int
1229 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1230 {
1231         struct sfc_dp_rxq *dp_rxq = queue;
1232         const struct sfc_dp_rx *dp_rx;
1233
1234         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1235
1236         return offset < dp_rx->qdesc_npending(dp_rxq);
1237 }
1238
1239 /*
1240  * The function is used by the secondary process as well. It must not
1241  * use any process-local pointers from the adapter data.
1242  */
1243 static int
1244 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1245 {
1246         struct sfc_dp_rxq *dp_rxq = queue;
1247         const struct sfc_dp_rx *dp_rx;
1248
1249         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1250
1251         return dp_rx->qdesc_status(dp_rxq, offset);
1252 }
1253
1254 /*
1255  * The function is used by the secondary process as well. It must not
1256  * use any process-local pointers from the adapter data.
1257  */
1258 static int
1259 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1260 {
1261         struct sfc_dp_txq *dp_txq = queue;
1262         const struct sfc_dp_tx *dp_tx;
1263
1264         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1265
1266         return dp_tx->qdesc_status(dp_txq, offset);
1267 }
1268
1269 static int
1270 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1271 {
1272         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1273         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1274         int rc;
1275
1276         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1277
1278         sfc_adapter_lock(sa);
1279
1280         rc = EINVAL;
1281         if (sa->state != SFC_ADAPTER_STARTED)
1282                 goto fail_not_started;
1283
1284         if (sas->rxq_info[rx_queue_id].state != SFC_RXQ_INITIALIZED)
1285                 goto fail_not_setup;
1286
1287         rc = sfc_rx_qstart(sa, rx_queue_id);
1288         if (rc != 0)
1289                 goto fail_rx_qstart;
1290
1291         sas->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1292
1293         sfc_adapter_unlock(sa);
1294
1295         return 0;
1296
1297 fail_rx_qstart:
1298 fail_not_setup:
1299 fail_not_started:
1300         sfc_adapter_unlock(sa);
1301         SFC_ASSERT(rc > 0);
1302         return -rc;
1303 }
1304
1305 static int
1306 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1307 {
1308         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1309         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1310
1311         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1312
1313         sfc_adapter_lock(sa);
1314         sfc_rx_qstop(sa, rx_queue_id);
1315
1316         sas->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1317
1318         sfc_adapter_unlock(sa);
1319
1320         return 0;
1321 }
1322
1323 static int
1324 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1325 {
1326         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1327         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1328         int rc;
1329
1330         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1331
1332         sfc_adapter_lock(sa);
1333
1334         rc = EINVAL;
1335         if (sa->state != SFC_ADAPTER_STARTED)
1336                 goto fail_not_started;
1337
1338         if (sas->txq_info[tx_queue_id].state != SFC_TXQ_INITIALIZED)
1339                 goto fail_not_setup;
1340
1341         rc = sfc_tx_qstart(sa, tx_queue_id);
1342         if (rc != 0)
1343                 goto fail_tx_qstart;
1344
1345         sas->txq_info[tx_queue_id].deferred_started = B_TRUE;
1346
1347         sfc_adapter_unlock(sa);
1348         return 0;
1349
1350 fail_tx_qstart:
1351
1352 fail_not_setup:
1353 fail_not_started:
1354         sfc_adapter_unlock(sa);
1355         SFC_ASSERT(rc > 0);
1356         return -rc;
1357 }
1358
1359 static int
1360 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1361 {
1362         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1363         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1364
1365         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1366
1367         sfc_adapter_lock(sa);
1368
1369         sfc_tx_qstop(sa, tx_queue_id);
1370
1371         sas->txq_info[tx_queue_id].deferred_started = B_FALSE;
1372
1373         sfc_adapter_unlock(sa);
1374         return 0;
1375 }
1376
1377 static efx_tunnel_protocol_t
1378 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1379 {
1380         switch (rte_type) {
1381         case RTE_TUNNEL_TYPE_VXLAN:
1382                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1383         case RTE_TUNNEL_TYPE_GENEVE:
1384                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1385         default:
1386                 return EFX_TUNNEL_NPROTOS;
1387         }
1388 }
1389
1390 enum sfc_udp_tunnel_op_e {
1391         SFC_UDP_TUNNEL_ADD_PORT,
1392         SFC_UDP_TUNNEL_DEL_PORT,
1393 };
1394
1395 static int
1396 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1397                       struct rte_eth_udp_tunnel *tunnel_udp,
1398                       enum sfc_udp_tunnel_op_e op)
1399 {
1400         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1401         efx_tunnel_protocol_t tunnel_proto;
1402         int rc;
1403
1404         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1405                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1406                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1407                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1408
1409         tunnel_proto =
1410                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1411         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1412                 rc = ENOTSUP;
1413                 goto fail_bad_proto;
1414         }
1415
1416         sfc_adapter_lock(sa);
1417
1418         switch (op) {
1419         case SFC_UDP_TUNNEL_ADD_PORT:
1420                 rc = efx_tunnel_config_udp_add(sa->nic,
1421                                                tunnel_udp->udp_port,
1422                                                tunnel_proto);
1423                 break;
1424         case SFC_UDP_TUNNEL_DEL_PORT:
1425                 rc = efx_tunnel_config_udp_remove(sa->nic,
1426                                                   tunnel_udp->udp_port,
1427                                                   tunnel_proto);
1428                 break;
1429         default:
1430                 rc = EINVAL;
1431                 goto fail_bad_op;
1432         }
1433
1434         if (rc != 0)
1435                 goto fail_op;
1436
1437         if (sa->state == SFC_ADAPTER_STARTED) {
1438                 rc = efx_tunnel_reconfigure(sa->nic);
1439                 if (rc == EAGAIN) {
1440                         /*
1441                          * Configuration is accepted by FW and MC reboot
1442                          * is initiated to apply the changes. MC reboot
1443                          * will be handled in a usual way (MC reboot
1444                          * event on management event queue and adapter
1445                          * restart).
1446                          */
1447                         rc = 0;
1448                 } else if (rc != 0) {
1449                         goto fail_reconfigure;
1450                 }
1451         }
1452
1453         sfc_adapter_unlock(sa);
1454         return 0;
1455
1456 fail_reconfigure:
1457         /* Remove/restore entry since the change makes the trouble */
1458         switch (op) {
1459         case SFC_UDP_TUNNEL_ADD_PORT:
1460                 (void)efx_tunnel_config_udp_remove(sa->nic,
1461                                                    tunnel_udp->udp_port,
1462                                                    tunnel_proto);
1463                 break;
1464         case SFC_UDP_TUNNEL_DEL_PORT:
1465                 (void)efx_tunnel_config_udp_add(sa->nic,
1466                                                 tunnel_udp->udp_port,
1467                                                 tunnel_proto);
1468                 break;
1469         }
1470
1471 fail_op:
1472 fail_bad_op:
1473         sfc_adapter_unlock(sa);
1474
1475 fail_bad_proto:
1476         SFC_ASSERT(rc > 0);
1477         return -rc;
1478 }
1479
1480 static int
1481 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1482                             struct rte_eth_udp_tunnel *tunnel_udp)
1483 {
1484         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1485 }
1486
1487 static int
1488 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1489                             struct rte_eth_udp_tunnel *tunnel_udp)
1490 {
1491         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1492 }
1493
1494 /*
1495  * The function is used by the secondary process as well. It must not
1496  * use any process-local pointers from the adapter data.
1497  */
1498 static int
1499 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1500                           struct rte_eth_rss_conf *rss_conf)
1501 {
1502         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1503         struct sfc_rss *rss = &sas->rss;
1504
1505         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1506                 return -ENOTSUP;
1507
1508         /*
1509          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1510          * hence, conversion is done here to derive a correct set of ETH_RSS
1511          * flags which corresponds to the active EFX configuration stored
1512          * locally in 'sfc_adapter' and kept up-to-date
1513          */
1514         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(rss, rss->hash_types);
1515         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1516         if (rss_conf->rss_key != NULL)
1517                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1518
1519         return 0;
1520 }
1521
1522 static int
1523 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1524                         struct rte_eth_rss_conf *rss_conf)
1525 {
1526         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1527         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1528         unsigned int efx_hash_types;
1529         int rc = 0;
1530
1531         if (sfc_sa2shared(sa)->isolated)
1532                 return -ENOTSUP;
1533
1534         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1535                 sfc_err(sa, "RSS is not available");
1536                 return -ENOTSUP;
1537         }
1538
1539         if (rss->channels == 0) {
1540                 sfc_err(sa, "RSS is not configured");
1541                 return -EINVAL;
1542         }
1543
1544         if ((rss_conf->rss_key != NULL) &&
1545             (rss_conf->rss_key_len != sizeof(rss->key))) {
1546                 sfc_err(sa, "RSS key size is wrong (should be %zu)",
1547                         sizeof(rss->key));
1548                 return -EINVAL;
1549         }
1550
1551         sfc_adapter_lock(sa);
1552
1553         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1554         if (rc != 0)
1555                 goto fail_rx_hf_rte_to_efx;
1556
1557         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1558                                    rss->hash_alg, efx_hash_types, B_TRUE);
1559         if (rc != 0)
1560                 goto fail_scale_mode_set;
1561
1562         if (rss_conf->rss_key != NULL) {
1563                 if (sa->state == SFC_ADAPTER_STARTED) {
1564                         rc = efx_rx_scale_key_set(sa->nic,
1565                                                   EFX_RSS_CONTEXT_DEFAULT,
1566                                                   rss_conf->rss_key,
1567                                                   sizeof(rss->key));
1568                         if (rc != 0)
1569                                 goto fail_scale_key_set;
1570                 }
1571
1572                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1573         }
1574
1575         rss->hash_types = efx_hash_types;
1576
1577         sfc_adapter_unlock(sa);
1578
1579         return 0;
1580
1581 fail_scale_key_set:
1582         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1583                                   EFX_RX_HASHALG_TOEPLITZ,
1584                                   rss->hash_types, B_TRUE) != 0)
1585                 sfc_err(sa, "failed to restore RSS mode");
1586
1587 fail_scale_mode_set:
1588 fail_rx_hf_rte_to_efx:
1589         sfc_adapter_unlock(sa);
1590         return -rc;
1591 }
1592
1593 /*
1594  * The function is used by the secondary process as well. It must not
1595  * use any process-local pointers from the adapter data.
1596  */
1597 static int
1598 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1599                        struct rte_eth_rss_reta_entry64 *reta_conf,
1600                        uint16_t reta_size)
1601 {
1602         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1603         struct sfc_rss *rss = &sas->rss;
1604         int entry;
1605
1606         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || sas->isolated)
1607                 return -ENOTSUP;
1608
1609         if (rss->channels == 0)
1610                 return -EINVAL;
1611
1612         if (reta_size != EFX_RSS_TBL_SIZE)
1613                 return -EINVAL;
1614
1615         for (entry = 0; entry < reta_size; entry++) {
1616                 int grp = entry / RTE_RETA_GROUP_SIZE;
1617                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1618
1619                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1620                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1621         }
1622
1623         return 0;
1624 }
1625
1626 static int
1627 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1628                         struct rte_eth_rss_reta_entry64 *reta_conf,
1629                         uint16_t reta_size)
1630 {
1631         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1632         struct sfc_rss *rss = &sfc_sa2shared(sa)->rss;
1633         unsigned int *rss_tbl_new;
1634         uint16_t entry;
1635         int rc = 0;
1636
1637
1638         if (sfc_sa2shared(sa)->isolated)
1639                 return -ENOTSUP;
1640
1641         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1642                 sfc_err(sa, "RSS is not available");
1643                 return -ENOTSUP;
1644         }
1645
1646         if (rss->channels == 0) {
1647                 sfc_err(sa, "RSS is not configured");
1648                 return -EINVAL;
1649         }
1650
1651         if (reta_size != EFX_RSS_TBL_SIZE) {
1652                 sfc_err(sa, "RETA size is wrong (should be %u)",
1653                         EFX_RSS_TBL_SIZE);
1654                 return -EINVAL;
1655         }
1656
1657         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1658         if (rss_tbl_new == NULL)
1659                 return -ENOMEM;
1660
1661         sfc_adapter_lock(sa);
1662
1663         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1664
1665         for (entry = 0; entry < reta_size; entry++) {
1666                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1667                 struct rte_eth_rss_reta_entry64 *grp;
1668
1669                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1670
1671                 if (grp->mask & (1ull << grp_idx)) {
1672                         if (grp->reta[grp_idx] >= rss->channels) {
1673                                 rc = EINVAL;
1674                                 goto bad_reta_entry;
1675                         }
1676                         rss_tbl_new[entry] = grp->reta[grp_idx];
1677                 }
1678         }
1679
1680         if (sa->state == SFC_ADAPTER_STARTED) {
1681                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1682                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1683                 if (rc != 0)
1684                         goto fail_scale_tbl_set;
1685         }
1686
1687         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1688
1689 fail_scale_tbl_set:
1690 bad_reta_entry:
1691         sfc_adapter_unlock(sa);
1692
1693         rte_free(rss_tbl_new);
1694
1695         SFC_ASSERT(rc >= 0);
1696         return -rc;
1697 }
1698
1699 static int
1700 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1701                     enum rte_filter_op filter_op,
1702                     void *arg)
1703 {
1704         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1705         int rc = ENOTSUP;
1706
1707         sfc_log_init(sa, "entry");
1708
1709         switch (filter_type) {
1710         case RTE_ETH_FILTER_NONE:
1711                 sfc_err(sa, "Global filters configuration not supported");
1712                 break;
1713         case RTE_ETH_FILTER_MACVLAN:
1714                 sfc_err(sa, "MACVLAN filters not supported");
1715                 break;
1716         case RTE_ETH_FILTER_ETHERTYPE:
1717                 sfc_err(sa, "EtherType filters not supported");
1718                 break;
1719         case RTE_ETH_FILTER_FLEXIBLE:
1720                 sfc_err(sa, "Flexible filters not supported");
1721                 break;
1722         case RTE_ETH_FILTER_SYN:
1723                 sfc_err(sa, "SYN filters not supported");
1724                 break;
1725         case RTE_ETH_FILTER_NTUPLE:
1726                 sfc_err(sa, "NTUPLE filters not supported");
1727                 break;
1728         case RTE_ETH_FILTER_TUNNEL:
1729                 sfc_err(sa, "Tunnel filters not supported");
1730                 break;
1731         case RTE_ETH_FILTER_FDIR:
1732                 sfc_err(sa, "Flow Director filters not supported");
1733                 break;
1734         case RTE_ETH_FILTER_HASH:
1735                 sfc_err(sa, "Hash filters not supported");
1736                 break;
1737         case RTE_ETH_FILTER_GENERIC:
1738                 if (filter_op != RTE_ETH_FILTER_GET) {
1739                         rc = EINVAL;
1740                 } else {
1741                         *(const void **)arg = &sfc_flow_ops;
1742                         rc = 0;
1743                 }
1744                 break;
1745         default:
1746                 sfc_err(sa, "Unknown filter type %u", filter_type);
1747                 break;
1748         }
1749
1750         sfc_log_init(sa, "exit: %d", -rc);
1751         SFC_ASSERT(rc >= 0);
1752         return -rc;
1753 }
1754
1755 static int
1756 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1757 {
1758         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1759
1760         /*
1761          * If Rx datapath does not provide callback to check mempool,
1762          * all pools are supported.
1763          */
1764         if (sap->dp_rx->pool_ops_supported == NULL)
1765                 return 1;
1766
1767         return sap->dp_rx->pool_ops_supported(pool);
1768 }
1769
1770 static int
1771 sfc_rx_queue_intr_enable(struct rte_eth_dev *dev, uint16_t queue_id)
1772 {
1773         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1774         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1775         struct sfc_rxq_info *rxq_info;
1776
1777         SFC_ASSERT(queue_id < sas->rxq_count);
1778         rxq_info = &sas->rxq_info[queue_id];
1779
1780         return sap->dp_rx->intr_enable(rxq_info->dp);
1781 }
1782
1783 static int
1784 sfc_rx_queue_intr_disable(struct rte_eth_dev *dev, uint16_t queue_id)
1785 {
1786         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1787         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1788         struct sfc_rxq_info *rxq_info;
1789
1790         SFC_ASSERT(queue_id < sas->rxq_count);
1791         rxq_info = &sas->rxq_info[queue_id];
1792
1793         return sap->dp_rx->intr_disable(rxq_info->dp);
1794 }
1795
1796 static const struct eth_dev_ops sfc_eth_dev_ops = {
1797         .dev_configure                  = sfc_dev_configure,
1798         .dev_start                      = sfc_dev_start,
1799         .dev_stop                       = sfc_dev_stop,
1800         .dev_set_link_up                = sfc_dev_set_link_up,
1801         .dev_set_link_down              = sfc_dev_set_link_down,
1802         .dev_close                      = sfc_dev_close,
1803         .promiscuous_enable             = sfc_dev_promisc_enable,
1804         .promiscuous_disable            = sfc_dev_promisc_disable,
1805         .allmulticast_enable            = sfc_dev_allmulti_enable,
1806         .allmulticast_disable           = sfc_dev_allmulti_disable,
1807         .link_update                    = sfc_dev_link_update,
1808         .stats_get                      = sfc_stats_get,
1809         .stats_reset                    = sfc_stats_reset,
1810         .xstats_get                     = sfc_xstats_get,
1811         .xstats_reset                   = sfc_stats_reset,
1812         .xstats_get_names               = sfc_xstats_get_names,
1813         .dev_infos_get                  = sfc_dev_infos_get,
1814         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1815         .mtu_set                        = sfc_dev_set_mtu,
1816         .rx_queue_start                 = sfc_rx_queue_start,
1817         .rx_queue_stop                  = sfc_rx_queue_stop,
1818         .tx_queue_start                 = sfc_tx_queue_start,
1819         .tx_queue_stop                  = sfc_tx_queue_stop,
1820         .rx_queue_setup                 = sfc_rx_queue_setup,
1821         .rx_queue_release               = sfc_rx_queue_release,
1822         .rx_queue_count                 = sfc_rx_queue_count,
1823         .rx_descriptor_done             = sfc_rx_descriptor_done,
1824         .rx_descriptor_status           = sfc_rx_descriptor_status,
1825         .tx_descriptor_status           = sfc_tx_descriptor_status,
1826         .rx_queue_intr_enable           = sfc_rx_queue_intr_enable,
1827         .rx_queue_intr_disable          = sfc_rx_queue_intr_disable,
1828         .tx_queue_setup                 = sfc_tx_queue_setup,
1829         .tx_queue_release               = sfc_tx_queue_release,
1830         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1831         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1832         .mac_addr_set                   = sfc_mac_addr_set,
1833         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1834         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1835         .reta_update                    = sfc_dev_rss_reta_update,
1836         .reta_query                     = sfc_dev_rss_reta_query,
1837         .rss_hash_update                = sfc_dev_rss_hash_update,
1838         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1839         .filter_ctrl                    = sfc_dev_filter_ctrl,
1840         .set_mc_addr_list               = sfc_set_mc_addr_list,
1841         .rxq_info_get                   = sfc_rx_queue_info_get,
1842         .txq_info_get                   = sfc_tx_queue_info_get,
1843         .fw_version_get                 = sfc_fw_version_get,
1844         .xstats_get_by_id               = sfc_xstats_get_by_id,
1845         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1846         .pool_ops_supported             = sfc_pool_ops_supported,
1847 };
1848
1849 /**
1850  * Duplicate a string in potentially shared memory required for
1851  * multi-process support.
1852  *
1853  * strdup() allocates from process-local heap/memory.
1854  */
1855 static char *
1856 sfc_strdup(const char *str)
1857 {
1858         size_t size;
1859         char *copy;
1860
1861         if (str == NULL)
1862                 return NULL;
1863
1864         size = strlen(str) + 1;
1865         copy = rte_malloc(__func__, size, 0);
1866         if (copy != NULL)
1867                 rte_memcpy(copy, str, size);
1868
1869         return copy;
1870 }
1871
1872 static int
1873 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1874 {
1875         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
1876         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1877         const struct sfc_dp_rx *dp_rx;
1878         const struct sfc_dp_tx *dp_tx;
1879         const efx_nic_cfg_t *encp;
1880         unsigned int avail_caps = 0;
1881         const char *rx_name = NULL;
1882         const char *tx_name = NULL;
1883         int rc;
1884
1885         switch (sa->family) {
1886         case EFX_FAMILY_HUNTINGTON:
1887         case EFX_FAMILY_MEDFORD:
1888         case EFX_FAMILY_MEDFORD2:
1889                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1890                 break;
1891         default:
1892                 break;
1893         }
1894
1895         encp = efx_nic_cfg_get(sa->nic);
1896         if (encp->enc_rx_es_super_buffer_supported)
1897                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1898
1899         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1900                                 sfc_kvarg_string_handler, &rx_name);
1901         if (rc != 0)
1902                 goto fail_kvarg_rx_datapath;
1903
1904         if (rx_name != NULL) {
1905                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1906                 if (dp_rx == NULL) {
1907                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1908                         rc = ENOENT;
1909                         goto fail_dp_rx;
1910                 }
1911                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
1912                         sfc_err(sa,
1913                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1914                                 rx_name);
1915                         rc = EINVAL;
1916                         goto fail_dp_rx_caps;
1917                 }
1918         } else {
1919                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1920                 if (dp_rx == NULL) {
1921                         sfc_err(sa, "Rx datapath by caps %#x not found",
1922                                 avail_caps);
1923                         rc = ENOENT;
1924                         goto fail_dp_rx;
1925                 }
1926         }
1927
1928         sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
1929         if (sas->dp_rx_name == NULL) {
1930                 rc = ENOMEM;
1931                 goto fail_dp_rx_name;
1932         }
1933
1934         sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
1935
1936         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1937                                 sfc_kvarg_string_handler, &tx_name);
1938         if (rc != 0)
1939                 goto fail_kvarg_tx_datapath;
1940
1941         if (tx_name != NULL) {
1942                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1943                 if (dp_tx == NULL) {
1944                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1945                         rc = ENOENT;
1946                         goto fail_dp_tx;
1947                 }
1948                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
1949                         sfc_err(sa,
1950                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1951                                 tx_name);
1952                         rc = EINVAL;
1953                         goto fail_dp_tx_caps;
1954                 }
1955         } else {
1956                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1957                 if (dp_tx == NULL) {
1958                         sfc_err(sa, "Tx datapath by caps %#x not found",
1959                                 avail_caps);
1960                         rc = ENOENT;
1961                         goto fail_dp_tx;
1962                 }
1963         }
1964
1965         sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
1966         if (sas->dp_tx_name == NULL) {
1967                 rc = ENOMEM;
1968                 goto fail_dp_tx_name;
1969         }
1970
1971         sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
1972
1973         sa->priv.dp_rx = dp_rx;
1974         sa->priv.dp_tx = dp_tx;
1975
1976         dev->rx_pkt_burst = dp_rx->pkt_burst;
1977         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
1978         dev->tx_pkt_burst = dp_tx->pkt_burst;
1979
1980         dev->dev_ops = &sfc_eth_dev_ops;
1981
1982         return 0;
1983
1984 fail_dp_tx_name:
1985 fail_dp_tx_caps:
1986 fail_dp_tx:
1987 fail_kvarg_tx_datapath:
1988         rte_free(sas->dp_rx_name);
1989         sas->dp_rx_name = NULL;
1990
1991 fail_dp_rx_name:
1992 fail_dp_rx_caps:
1993 fail_dp_rx:
1994 fail_kvarg_rx_datapath:
1995         return rc;
1996 }
1997
1998 static void
1999 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
2000 {
2001         struct sfc_adapter *sa = sfc_adapter_by_eth_dev(dev);
2002         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2003
2004         dev->dev_ops = NULL;
2005         dev->tx_pkt_prepare = NULL;
2006         dev->rx_pkt_burst = NULL;
2007         dev->tx_pkt_burst = NULL;
2008
2009         rte_free(sas->dp_tx_name);
2010         sas->dp_tx_name = NULL;
2011         sa->priv.dp_tx = NULL;
2012
2013         rte_free(sas->dp_rx_name);
2014         sas->dp_rx_name = NULL;
2015         sa->priv.dp_rx = NULL;
2016 }
2017
2018 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
2019         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
2020         .rx_queue_count                 = sfc_rx_queue_count,
2021         .rx_descriptor_done             = sfc_rx_descriptor_done,
2022         .rx_descriptor_status           = sfc_rx_descriptor_status,
2023         .tx_descriptor_status           = sfc_tx_descriptor_status,
2024         .reta_query                     = sfc_dev_rss_reta_query,
2025         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
2026         .rxq_info_get                   = sfc_rx_queue_info_get,
2027         .txq_info_get                   = sfc_tx_queue_info_get,
2028 };
2029
2030 static int
2031 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
2032 {
2033         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2034         struct sfc_adapter_priv *sap;
2035         const struct sfc_dp_rx *dp_rx;
2036         const struct sfc_dp_tx *dp_tx;
2037         int rc;
2038
2039         /*
2040          * Allocate process private data from heap, since it should not
2041          * be located in shared memory allocated using rte_malloc() API.
2042          */
2043         sap = calloc(1, sizeof(*sap));
2044         if (sap == NULL) {
2045                 rc = ENOMEM;
2046                 goto fail_alloc_priv;
2047         }
2048
2049         sap->logtype_main = logtype_main;
2050
2051         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
2052         if (dp_rx == NULL) {
2053                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2054                         "cannot find %s Rx datapath", sas->dp_rx_name);
2055                 rc = ENOENT;
2056                 goto fail_dp_rx;
2057         }
2058         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
2059                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2060                         "%s Rx datapath does not support multi-process",
2061                         sas->dp_rx_name);
2062                 rc = EINVAL;
2063                 goto fail_dp_rx_multi_process;
2064         }
2065
2066         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
2067         if (dp_tx == NULL) {
2068                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2069                         "cannot find %s Tx datapath", sas->dp_tx_name);
2070                 rc = ENOENT;
2071                 goto fail_dp_tx;
2072         }
2073         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
2074                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
2075                         "%s Tx datapath does not support multi-process",
2076                         sas->dp_tx_name);
2077                 rc = EINVAL;
2078                 goto fail_dp_tx_multi_process;
2079         }
2080
2081         sap->dp_rx = dp_rx;
2082         sap->dp_tx = dp_tx;
2083
2084         dev->process_private = sap;
2085         dev->rx_pkt_burst = dp_rx->pkt_burst;
2086         dev->tx_pkt_prepare = dp_tx->pkt_prepare;
2087         dev->tx_pkt_burst = dp_tx->pkt_burst;
2088         dev->dev_ops = &sfc_eth_dev_secondary_ops;
2089
2090         return 0;
2091
2092 fail_dp_tx_multi_process:
2093 fail_dp_tx:
2094 fail_dp_rx_multi_process:
2095 fail_dp_rx:
2096         free(sap);
2097
2098 fail_alloc_priv:
2099         return rc;
2100 }
2101
2102 static void
2103 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
2104 {
2105         free(dev->process_private);
2106         dev->process_private = NULL;
2107         dev->dev_ops = NULL;
2108         dev->tx_pkt_prepare = NULL;
2109         dev->tx_pkt_burst = NULL;
2110         dev->rx_pkt_burst = NULL;
2111 }
2112
2113 static void
2114 sfc_register_dp(void)
2115 {
2116         /* Register once */
2117         if (TAILQ_EMPTY(&sfc_dp_head)) {
2118                 /* Prefer EF10 datapath */
2119                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2120                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2121                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2122
2123                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2124                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2125                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2126         }
2127 }
2128
2129 static int
2130 sfc_eth_dev_init(struct rte_eth_dev *dev)
2131 {
2132         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
2133         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2134         uint32_t logtype_main;
2135         struct sfc_adapter *sa;
2136         int rc;
2137         const efx_nic_cfg_t *encp;
2138         const struct rte_ether_addr *from;
2139
2140         sfc_register_dp();
2141
2142         logtype_main = sfc_register_logtype(&pci_dev->addr,
2143                                             SFC_LOGTYPE_MAIN_STR,
2144                                             RTE_LOG_NOTICE);
2145
2146         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2147                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2148
2149         /* Required for logging */
2150         sas->pci_addr = pci_dev->addr;
2151         sas->port_id = dev->data->port_id;
2152
2153         /*
2154          * Allocate process private data from heap, since it should not
2155          * be located in shared memory allocated using rte_malloc() API.
2156          */
2157         sa = calloc(1, sizeof(*sa));
2158         if (sa == NULL) {
2159                 rc = ENOMEM;
2160                 goto fail_alloc_sa;
2161         }
2162
2163         dev->process_private = sa;
2164
2165         /* Required for logging */
2166         sa->priv.shared = sas;
2167         sa->priv.logtype_main = logtype_main;
2168
2169         sa->eth_dev = dev;
2170
2171         /* Copy PCI device info to the dev->data */
2172         rte_eth_copy_pci_info(dev, pci_dev);
2173
2174         rc = sfc_kvargs_parse(sa);
2175         if (rc != 0)
2176                 goto fail_kvargs_parse;
2177
2178         sfc_log_init(sa, "entry");
2179
2180         dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
2181
2182         dev->data->mac_addrs = rte_zmalloc("sfc", RTE_ETHER_ADDR_LEN, 0);
2183         if (dev->data->mac_addrs == NULL) {
2184                 rc = ENOMEM;
2185                 goto fail_mac_addrs;
2186         }
2187
2188         sfc_adapter_lock_init(sa);
2189         sfc_adapter_lock(sa);
2190
2191         sfc_log_init(sa, "probing");
2192         rc = sfc_probe(sa);
2193         if (rc != 0)
2194                 goto fail_probe;
2195
2196         sfc_log_init(sa, "set device ops");
2197         rc = sfc_eth_dev_set_ops(dev);
2198         if (rc != 0)
2199                 goto fail_set_ops;
2200
2201         sfc_log_init(sa, "attaching");
2202         rc = sfc_attach(sa);
2203         if (rc != 0)
2204                 goto fail_attach;
2205
2206         encp = efx_nic_cfg_get(sa->nic);
2207
2208         /*
2209          * The arguments are really reverse order in comparison to
2210          * Linux kernel. Copy from NIC config to Ethernet device data.
2211          */
2212         from = (const struct rte_ether_addr *)(encp->enc_mac_addr);
2213         rte_ether_addr_copy(from, &dev->data->mac_addrs[0]);
2214
2215         sfc_adapter_unlock(sa);
2216
2217         sfc_log_init(sa, "done");
2218         return 0;
2219
2220 fail_attach:
2221         sfc_eth_dev_clear_ops(dev);
2222
2223 fail_set_ops:
2224         sfc_unprobe(sa);
2225
2226 fail_probe:
2227         sfc_adapter_unlock(sa);
2228         sfc_adapter_lock_fini(sa);
2229         rte_free(dev->data->mac_addrs);
2230         dev->data->mac_addrs = NULL;
2231
2232 fail_mac_addrs:
2233         sfc_kvargs_cleanup(sa);
2234
2235 fail_kvargs_parse:
2236         sfc_log_init(sa, "failed %d", rc);
2237         dev->process_private = NULL;
2238         free(sa);
2239
2240 fail_alloc_sa:
2241         SFC_ASSERT(rc > 0);
2242         return -rc;
2243 }
2244
2245 static int
2246 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2247 {
2248         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2249                 sfc_eth_dev_secondary_clear_ops(dev);
2250                 return 0;
2251         }
2252
2253         sfc_dev_close(dev);
2254
2255         return 0;
2256 }
2257
2258 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2259         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2260         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2261         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2262         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2263         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2264         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2265         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2266         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2267         { .vendor_id = 0 /* sentinel */ }
2268 };
2269
2270 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2271         struct rte_pci_device *pci_dev)
2272 {
2273         return rte_eth_dev_pci_generic_probe(pci_dev,
2274                 sizeof(struct sfc_adapter_shared), sfc_eth_dev_init);
2275 }
2276
2277 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2278 {
2279         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2280 }
2281
2282 static struct rte_pci_driver sfc_efx_pmd = {
2283         .id_table = pci_id_sfc_efx_map,
2284         .drv_flags =
2285                 RTE_PCI_DRV_INTR_LSC |
2286                 RTE_PCI_DRV_NEED_MAPPING,
2287         .probe = sfc_eth_dev_pci_probe,
2288         .remove = sfc_eth_dev_pci_remove,
2289 };
2290
2291 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2292 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2293 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2294 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2295         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2296         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2297         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2298         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2299         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2300         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2301
2302 RTE_INIT(sfc_driver_register_logtype)
2303 {
2304         int ret;
2305
2306         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2307                                                    RTE_LOG_NOTICE);
2308         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2309 }