drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2016-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <rte_dev.h>
  11 #include <rte_ethdev_driver.h>
  12 #include <rte_ethdev_pci.h>
  13 #include <rte_pci.h>
  14 #include <rte_bus_pci.h>
  15 #include <rte_errno.h>
  16
  17 #include "efx.h"
  18
  19 #include "sfc.h"
  20 #include "sfc_debug.h"
  21 #include "sfc_log.h"
  22 #include "sfc_kvargs.h"
  23 #include "sfc_ev.h"
  24 #include "sfc_rx.h"
  25 #include "sfc_tx.h"
  26 #include "sfc_flow.h"
  27 #include "sfc_dp.h"
  28 #include "sfc_dp_rx.h"
  29
  30 uint32_t sfc_logtype_driver;
  31
  32 static struct sfc_dp_list sfc_dp_head =
  33         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  34
  35 static int
  36 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  37 {
  38         struct sfc_adapter *sa = dev->data->dev_private;
  39         efx_nic_fw_info_t enfi;
  40         int ret;
  41         int rc;
  42
  43         /*
  44          * Return value of the callback is likely supposed to be
  45          * equal to or greater than 0, nevertheless, if an error
  46          * occurs, it will be desirable to pass it to the caller
  47          */
  48         if ((fw_version == NULL) || (fw_size == 0))
  49                 return -EINVAL;
  50
  51         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  52         if (rc != 0)
  53                 return -rc;
  54
  55         ret = snprintf(fw_version, fw_size,
  56                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  57                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  58                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  59         if (ret < 0)
  60                 return ret;
  61
  62         if (enfi.enfi_dpcpu_fw_ids_valid) {
  63                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  64                 int ret_extra;
  65
  66                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  67                                      fw_size - dpcpu_fw_ids_offset,
  68                                      " rx%" PRIx16 " tx%" PRIx16,
  69                                      enfi.enfi_rx_dpcpu_fw_id,
  70                                      enfi.enfi_tx_dpcpu_fw_id);
  71                 if (ret_extra < 0)
  72                         return ret_extra;
  73
  74                 ret += ret_extra;
  75         }
  76
  77         if (fw_size < (size_t)(++ret))
  78                 return ret;
  79         else
  80                 return 0;
  81 }
  82
  83 static void
  84 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  85 {
  86         struct sfc_adapter *sa = dev->data->dev_private;
  87         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
  88         uint64_t txq_offloads_def = 0;
  89
  90         sfc_log_init(sa, "entry");
  91
  92         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
  93         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
  94
  95         /* Autonegotiation may be disabled */
  96         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
  97         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
  98                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
  99         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 100                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 101         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 102                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 103
 104         dev_info->max_rx_queues = sa->rxq_max;
 105         dev_info->max_tx_queues = sa->txq_max;
 106
 107         /* By default packets are dropped if no descriptors are available */
 108         dev_info->default_rxconf.rx_drop_en = 1;
 109
 110         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 111
 112         /*
 113          * rx_offload_capa includes both device and queue offloads since
 114          * the latter may be requested on a per device basis which makes
 115          * sense when some offloads are needed to be set on all queues.
 116          */
 117         dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 118                                     dev_info->rx_queue_offload_capa;
 119
 120         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 121
 122         /*
 123          * tx_offload_capa includes both device and queue offloads since
 124          * the latter may be requested on a per device basis which makes
 125          * sense when some offloads are needed to be set on all queues.
 126          */
 127         dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 128                                     dev_info->tx_queue_offload_capa;
 129
 130         if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 131                 txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 132
 133         dev_info->default_txconf.offloads |= txq_offloads_def;
 134
 135         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 136         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 137             !encp->enc_hw_tx_insert_vlan_enabled)
 138                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 139
 140         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 141                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 142
 143         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_POOL)
 144                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTMEMP;
 145
 146         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_REFCNT)
 147                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOREFCOUNT;
 148
 149 #if EFSYS_OPT_RX_SCALE
 150         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 151                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 152                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 153                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 154         }
 155 #endif
 156
 157         /* Initialize to hardware limits */
 158         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 159         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 160         /* The RXQ hardware requires that the descriptor count is a power
 161          * of 2, but rx_desc_lim cannot properly describe that constraint.
 162          */
 163         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 164
 165         /* Initialize to hardware limits */
 166         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 167         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 168         /*
 169          * The TXQ hardware requires that the descriptor count is a power
 170          * of 2, but tx_desc_lim cannot properly describe that constraint
 171          */
 172         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 173
 174         if (sa->dp_rx->get_dev_info != NULL)
 175                 sa->dp_rx->get_dev_info(dev_info);
 176         if (sa->dp_tx->get_dev_info != NULL)
 177                 sa->dp_tx->get_dev_info(dev_info);
 178 }
 179
 180 static const uint32_t *
 181 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 182 {
 183         struct sfc_adapter *sa = dev->data->dev_private;
 184         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 185         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 186
 187         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 188 }
 189
 190 static int
 191 sfc_dev_configure(struct rte_eth_dev *dev)
 192 {
 193         struct rte_eth_dev_data *dev_data = dev->data;
 194         struct sfc_adapter *sa = dev_data->dev_private;
 195         int rc;
 196
 197         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 198                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 199
 200         sfc_adapter_lock(sa);
 201         switch (sa->state) {
 202         case SFC_ADAPTER_CONFIGURED:
 203                 /* FALLTHROUGH */
 204         case SFC_ADAPTER_INITIALIZED:
 205                 rc = sfc_configure(sa);
 206                 break;
 207         default:
 208                 sfc_err(sa, "unexpected adapter state %u to configure",
 209                         sa->state);
 210                 rc = EINVAL;
 211                 break;
 212         }
 213         sfc_adapter_unlock(sa);
 214
 215         sfc_log_init(sa, "done %d", rc);
 216         SFC_ASSERT(rc >= 0);
 217         return -rc;
 218 }
 219
 220 static int
 221 sfc_dev_start(struct rte_eth_dev *dev)
 222 {
 223         struct sfc_adapter *sa = dev->data->dev_private;
 224         int rc;
 225
 226         sfc_log_init(sa, "entry");
 227
 228         sfc_adapter_lock(sa);
 229         rc = sfc_start(sa);
 230         sfc_adapter_unlock(sa);
 231
 232         sfc_log_init(sa, "done %d", rc);
 233         SFC_ASSERT(rc >= 0);
 234         return -rc;
 235 }
 236
 237 static int
 238 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 239 {
 240         struct sfc_adapter *sa = dev->data->dev_private;
 241         struct rte_eth_link current_link;
 242         int ret;
 243
 244         sfc_log_init(sa, "entry");
 245
 246         if (sa->state != SFC_ADAPTER_STARTED) {
 247                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 248         } else if (wait_to_complete) {
 249                 efx_link_mode_t link_mode;
 250
 251                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 252                         link_mode = EFX_LINK_UNKNOWN;
 253                 sfc_port_link_mode_to_info(link_mode, &current_link);
 254
 255         } else {
 256                 sfc_ev_mgmt_qpoll(sa);
 257                 rte_eth_linkstatus_get(dev, &current_link);
 258         }
 259
 260         ret = rte_eth_linkstatus_set(dev, &current_link);
 261         if (ret == 0)
 262                 sfc_info(sa, "Link status is %s",
 263                          current_link.link_status ? "UP" : "DOWN");
 264         return ret;
 265 }
 266
 267 static void
 268 sfc_dev_stop(struct rte_eth_dev *dev)
 269 {
 270         struct sfc_adapter *sa = dev->data->dev_private;
 271
 272         sfc_log_init(sa, "entry");
 273
 274         sfc_adapter_lock(sa);
 275         sfc_stop(sa);
 276         sfc_adapter_unlock(sa);
 277
 278         sfc_log_init(sa, "done");
 279 }
 280
 281 static int
 282 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 283 {
 284         struct sfc_adapter *sa = dev->data->dev_private;
 285         int rc;
 286
 287         sfc_log_init(sa, "entry");
 288
 289         sfc_adapter_lock(sa);
 290         rc = sfc_start(sa);
 291         sfc_adapter_unlock(sa);
 292
 293         SFC_ASSERT(rc >= 0);
 294         return -rc;
 295 }
 296
 297 static int
 298 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 299 {
 300         struct sfc_adapter *sa = dev->data->dev_private;
 301
 302         sfc_log_init(sa, "entry");
 303
 304         sfc_adapter_lock(sa);
 305         sfc_stop(sa);
 306         sfc_adapter_unlock(sa);
 307
 308         return 0;
 309 }
 310
 311 static void
 312 sfc_dev_close(struct rte_eth_dev *dev)
 313 {
 314         struct sfc_adapter *sa = dev->data->dev_private;
 315
 316         sfc_log_init(sa, "entry");
 317
 318         sfc_adapter_lock(sa);
 319         switch (sa->state) {
 320         case SFC_ADAPTER_STARTED:
 321                 sfc_stop(sa);
 322                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 323                 /* FALLTHROUGH */
 324         case SFC_ADAPTER_CONFIGURED:
 325                 sfc_close(sa);
 326                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 327                 /* FALLTHROUGH */
 328         case SFC_ADAPTER_INITIALIZED:
 329                 break;
 330         default:
 331                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 332                 break;
 333         }
 334         sfc_adapter_unlock(sa);
 335
 336         sfc_log_init(sa, "done");
 337 }
 338
 339 static void
 340 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 341                    boolean_t enabled)
 342 {
 343         struct sfc_port *port;
 344         boolean_t *toggle;
 345         struct sfc_adapter *sa = dev->data->dev_private;
 346         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 347         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 348
 349         sfc_adapter_lock(sa);
 350
 351         port = &sa->port;
 352         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 353
 354         if (*toggle != enabled) {
 355                 *toggle = enabled;
 356
 357                 if (port->isolated) {
 358                         sfc_warn(sa, "isolated mode is active on the port");
 359                         sfc_warn(sa, "the change is to be applied on the next "
 360                                      "start provided that isolated mode is "
 361                                      "disabled prior the next start");
 362                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 363                            (sfc_set_rx_mode(sa) != 0)) {
 364                         *toggle = !(enabled);
 365                         sfc_warn(sa, "Failed to %s %s mode",
 366                                  ((enabled) ? "enable" : "disable"), desc);
 367                 }
 368         }
 369
 370         sfc_adapter_unlock(sa);
 371 }
 372
 373 static void
 374 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 375 {
 376         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 377 }
 378
 379 static void
 380 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 381 {
 382         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 383 }
 384
 385 static void
 386 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 387 {
 388         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 389 }
 390
 391 static void
 392 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 393 {
 394         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 395 }
 396
 397 static int
 398 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 399                    uint16_t nb_rx_desc, unsigned int socket_id,
 400                    const struct rte_eth_rxconf *rx_conf,
 401                    struct rte_mempool *mb_pool)
 402 {
 403         struct sfc_adapter *sa = dev->data->dev_private;
 404         int rc;
 405
 406         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 407                      rx_queue_id, nb_rx_desc, socket_id);
 408
 409         sfc_adapter_lock(sa);
 410
 411         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 412                           rx_conf, mb_pool);
 413         if (rc != 0)
 414                 goto fail_rx_qinit;
 415
 416         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq->dp;
 417
 418         sfc_adapter_unlock(sa);
 419
 420         return 0;
 421
 422 fail_rx_qinit:
 423         sfc_adapter_unlock(sa);
 424         SFC_ASSERT(rc > 0);
 425         return -rc;
 426 }
 427
 428 static void
 429 sfc_rx_queue_release(void *queue)
 430 {
 431         struct sfc_dp_rxq *dp_rxq = queue;
 432         struct sfc_rxq *rxq;
 433         struct sfc_adapter *sa;
 434         unsigned int sw_index;
 435
 436         if (dp_rxq == NULL)
 437                 return;
 438
 439         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 440         sa = rxq->evq->sa;
 441         sfc_adapter_lock(sa);
 442
 443         sw_index = sfc_rxq_sw_index(rxq);
 444
 445         sfc_log_init(sa, "RxQ=%u", sw_index);
 446
 447         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 448
 449         sfc_rx_qfini(sa, sw_index);
 450
 451         sfc_adapter_unlock(sa);
 452 }
 453
 454 static int
 455 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 456                    uint16_t nb_tx_desc, unsigned int socket_id,
 457                    const struct rte_eth_txconf *tx_conf)
 458 {
 459         struct sfc_adapter *sa = dev->data->dev_private;
 460         int rc;
 461
 462         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 463                      tx_queue_id, nb_tx_desc, socket_id);
 464
 465         sfc_adapter_lock(sa);
 466
 467         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 468         if (rc != 0)
 469                 goto fail_tx_qinit;
 470
 471         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 472
 473         sfc_adapter_unlock(sa);
 474         return 0;
 475
 476 fail_tx_qinit:
 477         sfc_adapter_unlock(sa);
 478         SFC_ASSERT(rc > 0);
 479         return -rc;
 480 }
 481
 482 static void
 483 sfc_tx_queue_release(void *queue)
 484 {
 485         struct sfc_dp_txq *dp_txq = queue;
 486         struct sfc_txq *txq;
 487         unsigned int sw_index;
 488         struct sfc_adapter *sa;
 489
 490         if (dp_txq == NULL)
 491                 return;
 492
 493         txq = sfc_txq_by_dp_txq(dp_txq);
 494         sw_index = sfc_txq_sw_index(txq);
 495
 496         SFC_ASSERT(txq->evq != NULL);
 497         sa = txq->evq->sa;
 498
 499         sfc_log_init(sa, "TxQ = %u", sw_index);
 500
 501         sfc_adapter_lock(sa);
 502
 503         SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 504         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 505
 506         sfc_tx_qfini(sa, sw_index);
 507
 508         sfc_adapter_unlock(sa);
 509 }
 510
 511 static int
 512 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 513 {
 514         struct sfc_adapter *sa = dev->data->dev_private;
 515         struct sfc_port *port = &sa->port;
 516         uint64_t *mac_stats;
 517         int ret;
 518
 519         rte_spinlock_lock(&port->mac_stats_lock);
 520
 521         ret = sfc_port_update_mac_stats(sa);
 522         if (ret != 0)
 523                 goto unlock;
 524
 525         mac_stats = port->mac_stats_buf;
 526
 527         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 528                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 529                 stats->ipackets =
 530                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 531                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 532                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 533                 stats->opackets =
 534                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 535                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 536                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 537                 stats->ibytes =
 538                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 539                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 540                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 541                 stats->obytes =
 542                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 543                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 544                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 545                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 546                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 547                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 548         } else {
 549                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 550                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 551                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 552                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 553                 /*
 554                  * Take into account stats which are whenever supported
 555                  * on EF10. If some stat is not supported by current
 556                  * firmware variant or HW revision, it is guaranteed
 557                  * to be zero in mac_stats.
 558                  */
 559                 stats->imissed =
 560                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 561                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 562                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 563                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 564                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 565                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 566                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 567                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 568                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 569                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 570                 stats->ierrors =
 571                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 572                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 573                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 574                 /* no oerrors counters supported on EF10 */
 575         }
 576
 577 unlock:
 578         rte_spinlock_unlock(&port->mac_stats_lock);
 579         SFC_ASSERT(ret >= 0);
 580         return -ret;
 581 }
 582
 583 static void
 584 sfc_stats_reset(struct rte_eth_dev *dev)
 585 {
 586         struct sfc_adapter *sa = dev->data->dev_private;
 587         struct sfc_port *port = &sa->port;
 588         int rc;
 589
 590         if (sa->state != SFC_ADAPTER_STARTED) {
 591                 /*
 592                  * The operation cannot be done if port is not started; it
 593                  * will be scheduled to be done during the next port start
 594                  */
 595                 port->mac_stats_reset_pending = B_TRUE;
 596                 return;
 597         }
 598
 599         rc = sfc_port_reset_mac_stats(sa);
 600         if (rc != 0)
 601                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 602 }
 603
 604 static int
 605 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 606                unsigned int xstats_count)
 607 {
 608         struct sfc_adapter *sa = dev->data->dev_private;
 609         struct sfc_port *port = &sa->port;
 610         uint64_t *mac_stats;
 611         int rc;
 612         unsigned int i;
 613         int nstats = 0;
 614
 615         rte_spinlock_lock(&port->mac_stats_lock);
 616
 617         rc = sfc_port_update_mac_stats(sa);
 618         if (rc != 0) {
 619                 SFC_ASSERT(rc > 0);
 620                 nstats = -rc;
 621                 goto unlock;
 622         }
 623
 624         mac_stats = port->mac_stats_buf;
 625
 626         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 627                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 628                         if (xstats != NULL && nstats < (int)xstats_count) {
 629                                 xstats[nstats].id = nstats;
 630                                 xstats[nstats].value = mac_stats[i];
 631                         }
 632                         nstats++;
 633                 }
 634         }
 635
 636 unlock:
 637         rte_spinlock_unlock(&port->mac_stats_lock);
 638
 639         return nstats;
 640 }
 641
 642 static int
 643 sfc_xstats_get_names(struct rte_eth_dev *dev,
 644                      struct rte_eth_xstat_name *xstats_names,
 645                      unsigned int xstats_count)
 646 {
 647         struct sfc_adapter *sa = dev->data->dev_private;
 648         struct sfc_port *port = &sa->port;
 649         unsigned int i;
 650         unsigned int nstats = 0;
 651
 652         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 653                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 654                         if (xstats_names != NULL && nstats < xstats_count)
 655                                 strncpy(xstats_names[nstats].name,
 656                                         efx_mac_stat_name(sa->nic, i),
 657                                         sizeof(xstats_names[0].name));
 658                         nstats++;
 659                 }
 660         }
 661
 662         return nstats;
 663 }
 664
 665 static int
 666 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 667                      uint64_t *values, unsigned int n)
 668 {
 669         struct sfc_adapter *sa = dev->data->dev_private;
 670         struct sfc_port *port = &sa->port;
 671         uint64_t *mac_stats;
 672         unsigned int nb_supported = 0;
 673         unsigned int nb_written = 0;
 674         unsigned int i;
 675         int ret;
 676         int rc;
 677
 678         if (unlikely(values == NULL) ||
 679             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 680                 return port->mac_stats_nb_supported;
 681
 682         rte_spinlock_lock(&port->mac_stats_lock);
 683
 684         rc = sfc_port_update_mac_stats(sa);
 685         if (rc != 0) {
 686                 SFC_ASSERT(rc > 0);
 687                 ret = -rc;
 688                 goto unlock;
 689         }
 690
 691         mac_stats = port->mac_stats_buf;
 692
 693         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 694                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 695                         continue;
 696
 697                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 698                         values[nb_written++] = mac_stats[i];
 699
 700                 ++nb_supported;
 701         }
 702
 703         ret = nb_written;
 704
 705 unlock:
 706         rte_spinlock_unlock(&port->mac_stats_lock);
 707
 708         return ret;
 709 }
 710
 711 static int
 712 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 713                            struct rte_eth_xstat_name *xstats_names,
 714                            const uint64_t *ids, unsigned int size)
 715 {
 716         struct sfc_adapter *sa = dev->data->dev_private;
 717         struct sfc_port *port = &sa->port;
 718         unsigned int nb_supported = 0;
 719         unsigned int nb_written = 0;
 720         unsigned int i;
 721
 722         if (unlikely(xstats_names == NULL) ||
 723             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 724                 return port->mac_stats_nb_supported;
 725
 726         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 727                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 728                         continue;
 729
 730                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 731                         char *name = xstats_names[nb_written++].name;
 732
 733                         strncpy(name, efx_mac_stat_name(sa->nic, i),
 734                                 sizeof(xstats_names[0].name));
 735                         name[sizeof(xstats_names[0].name) - 1] = '\0';
 736                 }
 737
 738                 ++nb_supported;
 739         }
 740
 741         return nb_written;
 742 }
 743
 744 static int
 745 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 746 {
 747         struct sfc_adapter *sa = dev->data->dev_private;
 748         unsigned int wanted_fc, link_fc;
 749
 750         memset(fc_conf, 0, sizeof(*fc_conf));
 751
 752         sfc_adapter_lock(sa);
 753
 754         if (sa->state == SFC_ADAPTER_STARTED)
 755                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 756         else
 757                 link_fc = sa->port.flow_ctrl;
 758
 759         switch (link_fc) {
 760         case 0:
 761                 fc_conf->mode = RTE_FC_NONE;
 762                 break;
 763         case EFX_FCNTL_RESPOND:
 764                 fc_conf->mode = RTE_FC_RX_PAUSE;
 765                 break;
 766         case EFX_FCNTL_GENERATE:
 767                 fc_conf->mode = RTE_FC_TX_PAUSE;
 768                 break;
 769         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 770                 fc_conf->mode = RTE_FC_FULL;
 771                 break;
 772         default:
 773                 sfc_err(sa, "%s: unexpected flow control value %#x",
 774                         __func__, link_fc);
 775         }
 776
 777         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 778
 779         sfc_adapter_unlock(sa);
 780
 781         return 0;
 782 }
 783
 784 static int
 785 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 786 {
 787         struct sfc_adapter *sa = dev->data->dev_private;
 788         struct sfc_port *port = &sa->port;
 789         unsigned int fcntl;
 790         int rc;
 791
 792         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 793             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 794             fc_conf->mac_ctrl_frame_fwd != 0) {
 795                 sfc_err(sa, "unsupported flow control settings specified");
 796                 rc = EINVAL;
 797                 goto fail_inval;
 798         }
 799
 800         switch (fc_conf->mode) {
 801         case RTE_FC_NONE:
 802                 fcntl = 0;
 803                 break;
 804         case RTE_FC_RX_PAUSE:
 805                 fcntl = EFX_FCNTL_RESPOND;
 806                 break;
 807         case RTE_FC_TX_PAUSE:
 808                 fcntl = EFX_FCNTL_GENERATE;
 809                 break;
 810         case RTE_FC_FULL:
 811                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 812                 break;
 813         default:
 814                 rc = EINVAL;
 815                 goto fail_inval;
 816         }
 817
 818         sfc_adapter_lock(sa);
 819
 820         if (sa->state == SFC_ADAPTER_STARTED) {
 821                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 822                 if (rc != 0)
 823                         goto fail_mac_fcntl_set;
 824         }
 825
 826         port->flow_ctrl = fcntl;
 827         port->flow_ctrl_autoneg = fc_conf->autoneg;
 828
 829         sfc_adapter_unlock(sa);
 830
 831         return 0;
 832
 833 fail_mac_fcntl_set:
 834         sfc_adapter_unlock(sa);
 835 fail_inval:
 836         SFC_ASSERT(rc > 0);
 837         return -rc;
 838 }
 839
 840 static int
 841 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 842 {
 843         struct sfc_adapter *sa = dev->data->dev_private;
 844         size_t pdu = EFX_MAC_PDU(mtu);
 845         size_t old_pdu;
 846         int rc;
 847
 848         sfc_log_init(sa, "mtu=%u", mtu);
 849
 850         rc = EINVAL;
 851         if (pdu < EFX_MAC_PDU_MIN) {
 852                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 853                         (unsigned int)mtu, (unsigned int)pdu,
 854                         EFX_MAC_PDU_MIN);
 855                 goto fail_inval;
 856         }
 857         if (pdu > EFX_MAC_PDU_MAX) {
 858                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 859                         (unsigned int)mtu, (unsigned int)pdu,
 860                         EFX_MAC_PDU_MAX);
 861                 goto fail_inval;
 862         }
 863
 864         sfc_adapter_lock(sa);
 865
 866         if (pdu != sa->port.pdu) {
 867                 if (sa->state == SFC_ADAPTER_STARTED) {
 868                         sfc_stop(sa);
 869
 870                         old_pdu = sa->port.pdu;
 871                         sa->port.pdu = pdu;
 872                         rc = sfc_start(sa);
 873                         if (rc != 0)
 874                                 goto fail_start;
 875                 } else {
 876                         sa->port.pdu = pdu;
 877                 }
 878         }
 879
 880         /*
 881          * The driver does not use it, but other PMDs update jumbo_frame
 882          * flag and max_rx_pkt_len when MTU is set.
 883          */
 884         if (mtu > ETHER_MAX_LEN) {
 885                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 886
 887                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 888                 rxmode->jumbo_frame = 1;
 889         }
 890
 891         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 892
 893         sfc_adapter_unlock(sa);
 894
 895         sfc_log_init(sa, "done");
 896         return 0;
 897
 898 fail_start:
 899         sa->port.pdu = old_pdu;
 900         if (sfc_start(sa) != 0)
 901                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 902                         "PDU max size - port is stopped",
 903                         (unsigned int)pdu, (unsigned int)old_pdu);
 904         sfc_adapter_unlock(sa);
 905
 906 fail_inval:
 907         sfc_log_init(sa, "failed %d", rc);
 908         SFC_ASSERT(rc > 0);
 909         return -rc;
 910 }
 911 static void
 912 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 913 {
 914         struct sfc_adapter *sa = dev->data->dev_private;
 915         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 916         struct sfc_port *port = &sa->port;
 917         int rc;
 918
 919         sfc_adapter_lock(sa);
 920
 921         /*
 922          * Copy the address to the device private data so that
 923          * it could be recalled in the case of adapter restart.
 924          */
 925         ether_addr_copy(mac_addr, &port->default_mac_addr);
 926
 927         if (port->isolated) {
 928                 sfc_err(sa, "isolated mode is active on the port");
 929                 sfc_err(sa, "will not set MAC address");
 930                 goto unlock;
 931         }
 932
 933         if (sa->state != SFC_ADAPTER_STARTED) {
 934                 sfc_info(sa, "the port is not started");
 935                 sfc_info(sa, "the new MAC address will be set on port start");
 936
 937                 goto unlock;
 938         }
 939
 940         if (encp->enc_allow_set_mac_with_installed_filters) {
 941                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 942                 if (rc != 0) {
 943                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 944                         goto unlock;
 945                 }
 946
 947                 /*
 948                  * Changing the MAC address by means of MCDI request
 949                  * has no effect on received traffic, therefore
 950                  * we also need to update unicast filters
 951                  */
 952                 rc = sfc_set_rx_mode(sa);
 953                 if (rc != 0)
 954                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 955         } else {
 956                 sfc_warn(sa, "cannot set MAC address with filters installed");
 957                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 958                 sfc_warn(sa, "(some traffic may be dropped)");
 959
 960                 /*
 961                  * Since setting MAC address with filters installed is not
 962                  * allowed on the adapter, the new MAC address will be set
 963                  * by means of adapter restart. sfc_start() shall retrieve
 964                  * the new address from the device private data and set it.
 965                  */
 966                 sfc_stop(sa);
 967                 rc = sfc_start(sa);
 968                 if (rc != 0)
 969                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 970         }
 971
 972 unlock:
 973         /*
 974          * In the case of failure sa->port->default_mac_addr does not
 975          * need rollback since no error code is returned, and the upper
 976          * API will anyway update the external MAC address storage.
 977          * To be consistent with that new value it is better to keep
 978          * the device private value the same.
 979          */
 980         sfc_adapter_unlock(sa);
 981 }
 982
 983
 984 static int
 985 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 986                      uint32_t nb_mc_addr)
 987 {
 988         struct sfc_adapter *sa = dev->data->dev_private;
 989         struct sfc_port *port = &sa->port;
 990         uint8_t *mc_addrs = port->mcast_addrs;
 991         int rc;
 992         unsigned int i;
 993
 994         if (port->isolated) {
 995                 sfc_err(sa, "isolated mode is active on the port");
 996                 sfc_err(sa, "will not set multicast address list");
 997                 return -ENOTSUP;
 998         }
 999
1000         if (mc_addrs == NULL)
1001                 return -ENOBUFS;
1002
1003         if (nb_mc_addr > port->max_mcast_addrs) {
1004                 sfc_err(sa, "too many multicast addresses: %u > %u",
1005                          nb_mc_addr, port->max_mcast_addrs);
1006                 return -EINVAL;
1007         }
1008
1009         for (i = 0; i < nb_mc_addr; ++i) {
1010                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1011                                  EFX_MAC_ADDR_LEN);
1012                 mc_addrs += EFX_MAC_ADDR_LEN;
1013         }
1014
1015         port->nb_mcast_addrs = nb_mc_addr;
1016
1017         if (sa->state != SFC_ADAPTER_STARTED)
1018                 return 0;
1019
1020         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1021                                         port->nb_mcast_addrs);
1022         if (rc != 0)
1023                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1024
1025         SFC_ASSERT(rc > 0);
1026         return -rc;
1027 }
1028
1029 /*
1030  * The function is used by the secondary process as well. It must not
1031  * use any process-local pointers from the adapter data.
1032  */
1033 static void
1034 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1035                       struct rte_eth_rxq_info *qinfo)
1036 {
1037         struct sfc_adapter *sa = dev->data->dev_private;
1038         struct sfc_rxq_info *rxq_info;
1039         struct sfc_rxq *rxq;
1040
1041         sfc_adapter_lock(sa);
1042
1043         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1044
1045         rxq_info = &sa->rxq_info[rx_queue_id];
1046         rxq = rxq_info->rxq;
1047         SFC_ASSERT(rxq != NULL);
1048
1049         qinfo->mp = rxq->refill_mb_pool;
1050         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1051         qinfo->conf.rx_drop_en = 1;
1052         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1053         qinfo->conf.offloads = DEV_RX_OFFLOAD_IPV4_CKSUM |
1054                                DEV_RX_OFFLOAD_UDP_CKSUM |
1055                                DEV_RX_OFFLOAD_TCP_CKSUM;
1056         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1057                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1058                 qinfo->scattered_rx = 1;
1059         }
1060         qinfo->nb_desc = rxq_info->entries;
1061
1062         sfc_adapter_unlock(sa);
1063 }
1064
1065 /*
1066  * The function is used by the secondary process as well. It must not
1067  * use any process-local pointers from the adapter data.
1068  */
1069 static void
1070 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1071                       struct rte_eth_txq_info *qinfo)
1072 {
1073         struct sfc_adapter *sa = dev->data->dev_private;
1074         struct sfc_txq_info *txq_info;
1075
1076         sfc_adapter_lock(sa);
1077
1078         SFC_ASSERT(tx_queue_id < sa->txq_count);
1079
1080         txq_info = &sa->txq_info[tx_queue_id];
1081         SFC_ASSERT(txq_info->txq != NULL);
1082
1083         memset(qinfo, 0, sizeof(*qinfo));
1084
1085         qinfo->conf.txq_flags = txq_info->txq->flags;
1086         qinfo->conf.offloads = txq_info->txq->offloads;
1087         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
1088         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1089         qinfo->nb_desc = txq_info->entries;
1090
1091         sfc_adapter_unlock(sa);
1092 }
1093
1094 static uint32_t
1095 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1096 {
1097         struct sfc_adapter *sa = dev->data->dev_private;
1098
1099         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1100
1101         return sfc_rx_qdesc_npending(sa, rx_queue_id);
1102 }
1103
1104 static int
1105 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1106 {
1107         struct sfc_dp_rxq *dp_rxq = queue;
1108
1109         return sfc_rx_qdesc_done(dp_rxq, offset);
1110 }
1111
1112 static int
1113 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1114 {
1115         struct sfc_dp_rxq *dp_rxq = queue;
1116         struct sfc_rxq *rxq = sfc_rxq_by_dp_rxq(dp_rxq);
1117
1118         return rxq->evq->sa->dp_rx->qdesc_status(dp_rxq, offset);
1119 }
1120
1121 static int
1122 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1123 {
1124         struct sfc_dp_txq *dp_txq = queue;
1125         struct sfc_txq *txq = sfc_txq_by_dp_txq(dp_txq);
1126
1127         return txq->evq->sa->dp_tx->qdesc_status(dp_txq, offset);
1128 }
1129
1130 static int
1131 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1132 {
1133         struct sfc_adapter *sa = dev->data->dev_private;
1134         int rc;
1135
1136         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1137
1138         sfc_adapter_lock(sa);
1139
1140         rc = EINVAL;
1141         if (sa->state != SFC_ADAPTER_STARTED)
1142                 goto fail_not_started;
1143
1144         rc = sfc_rx_qstart(sa, rx_queue_id);
1145         if (rc != 0)
1146                 goto fail_rx_qstart;
1147
1148         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1149
1150         sfc_adapter_unlock(sa);
1151
1152         return 0;
1153
1154 fail_rx_qstart:
1155 fail_not_started:
1156         sfc_adapter_unlock(sa);
1157         SFC_ASSERT(rc > 0);
1158         return -rc;
1159 }
1160
1161 static int
1162 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1163 {
1164         struct sfc_adapter *sa = dev->data->dev_private;
1165
1166         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1167
1168         sfc_adapter_lock(sa);
1169         sfc_rx_qstop(sa, rx_queue_id);
1170
1171         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1172
1173         sfc_adapter_unlock(sa);
1174
1175         return 0;
1176 }
1177
1178 static int
1179 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1180 {
1181         struct sfc_adapter *sa = dev->data->dev_private;
1182         int rc;
1183
1184         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1185
1186         sfc_adapter_lock(sa);
1187
1188         rc = EINVAL;
1189         if (sa->state != SFC_ADAPTER_STARTED)
1190                 goto fail_not_started;
1191
1192         rc = sfc_tx_qstart(sa, tx_queue_id);
1193         if (rc != 0)
1194                 goto fail_tx_qstart;
1195
1196         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1197
1198         sfc_adapter_unlock(sa);
1199         return 0;
1200
1201 fail_tx_qstart:
1202
1203 fail_not_started:
1204         sfc_adapter_unlock(sa);
1205         SFC_ASSERT(rc > 0);
1206         return -rc;
1207 }
1208
1209 static int
1210 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1211 {
1212         struct sfc_adapter *sa = dev->data->dev_private;
1213
1214         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1215
1216         sfc_adapter_lock(sa);
1217
1218         sfc_tx_qstop(sa, tx_queue_id);
1219
1220         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1221
1222         sfc_adapter_unlock(sa);
1223         return 0;
1224 }
1225
1226 static efx_tunnel_protocol_t
1227 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1228 {
1229         switch (rte_type) {
1230         case RTE_TUNNEL_TYPE_VXLAN:
1231                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1232         case RTE_TUNNEL_TYPE_GENEVE:
1233                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1234         default:
1235                 return EFX_TUNNEL_NPROTOS;
1236         }
1237 }
1238
1239 enum sfc_udp_tunnel_op_e {
1240         SFC_UDP_TUNNEL_ADD_PORT,
1241         SFC_UDP_TUNNEL_DEL_PORT,
1242 };
1243
1244 static int
1245 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1246                       struct rte_eth_udp_tunnel *tunnel_udp,
1247                       enum sfc_udp_tunnel_op_e op)
1248 {
1249         struct sfc_adapter *sa = dev->data->dev_private;
1250         efx_tunnel_protocol_t tunnel_proto;
1251         int rc;
1252
1253         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1254                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1255                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1256                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1257
1258         tunnel_proto =
1259                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1260         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1261                 rc = ENOTSUP;
1262                 goto fail_bad_proto;
1263         }
1264
1265         sfc_adapter_lock(sa);
1266
1267         switch (op) {
1268         case SFC_UDP_TUNNEL_ADD_PORT:
1269                 rc = efx_tunnel_config_udp_add(sa->nic,
1270                                                tunnel_udp->udp_port,
1271                                                tunnel_proto);
1272                 break;
1273         case SFC_UDP_TUNNEL_DEL_PORT:
1274                 rc = efx_tunnel_config_udp_remove(sa->nic,
1275                                                   tunnel_udp->udp_port,
1276                                                   tunnel_proto);
1277                 break;
1278         default:
1279                 rc = EINVAL;
1280                 goto fail_bad_op;
1281         }
1282
1283         if (rc != 0)
1284                 goto fail_op;
1285
1286         if (sa->state == SFC_ADAPTER_STARTED) {
1287                 rc = efx_tunnel_reconfigure(sa->nic);
1288                 if (rc == EAGAIN) {
1289                         /*
1290                          * Configuration is accepted by FW and MC reboot
1291                          * is initiated to apply the changes. MC reboot
1292                          * will be handled in a usual way (MC reboot
1293                          * event on management event queue and adapter
1294                          * restart).
1295                          */
1296                         rc = 0;
1297                 } else if (rc != 0) {
1298                         goto fail_reconfigure;
1299                 }
1300         }
1301
1302         sfc_adapter_unlock(sa);
1303         return 0;
1304
1305 fail_reconfigure:
1306         /* Remove/restore entry since the change makes the trouble */
1307         switch (op) {
1308         case SFC_UDP_TUNNEL_ADD_PORT:
1309                 (void)efx_tunnel_config_udp_remove(sa->nic,
1310                                                    tunnel_udp->udp_port,
1311                                                    tunnel_proto);
1312                 break;
1313         case SFC_UDP_TUNNEL_DEL_PORT:
1314                 (void)efx_tunnel_config_udp_add(sa->nic,
1315                                                 tunnel_udp->udp_port,
1316                                                 tunnel_proto);
1317                 break;
1318         }
1319
1320 fail_op:
1321 fail_bad_op:
1322         sfc_adapter_unlock(sa);
1323
1324 fail_bad_proto:
1325         SFC_ASSERT(rc > 0);
1326         return -rc;
1327 }
1328
1329 static int
1330 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1331                             struct rte_eth_udp_tunnel *tunnel_udp)
1332 {
1333         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1334 }
1335
1336 static int
1337 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1338                             struct rte_eth_udp_tunnel *tunnel_udp)
1339 {
1340         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1341 }
1342
1343 #if EFSYS_OPT_RX_SCALE
1344 static int
1345 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1346                           struct rte_eth_rss_conf *rss_conf)
1347 {
1348         struct sfc_adapter *sa = dev->data->dev_private;
1349         struct sfc_port *port = &sa->port;
1350
1351         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1352                 return -ENOTSUP;
1353
1354         if (sa->rss_channels == 0)
1355                 return -EINVAL;
1356
1357         sfc_adapter_lock(sa);
1358
1359         /*
1360          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1361          * hence, conversion is done here to derive a correct set of ETH_RSS
1362          * flags which corresponds to the active EFX configuration stored
1363          * locally in 'sfc_adapter' and kept up-to-date
1364          */
1365         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1366         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1367         if (rss_conf->rss_key != NULL)
1368                 rte_memcpy(rss_conf->rss_key, sa->rss_key, EFX_RSS_KEY_SIZE);
1369
1370         sfc_adapter_unlock(sa);
1371
1372         return 0;
1373 }
1374
1375 static int
1376 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1377                         struct rte_eth_rss_conf *rss_conf)
1378 {
1379         struct sfc_adapter *sa = dev->data->dev_private;
1380         struct sfc_port *port = &sa->port;
1381         unsigned int efx_hash_types;
1382         int rc = 0;
1383
1384         if (port->isolated)
1385                 return -ENOTSUP;
1386
1387         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1388                 sfc_err(sa, "RSS is not available");
1389                 return -ENOTSUP;
1390         }
1391
1392         if (sa->rss_channels == 0) {
1393                 sfc_err(sa, "RSS is not configured");
1394                 return -EINVAL;
1395         }
1396
1397         if ((rss_conf->rss_key != NULL) &&
1398             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1399                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1400                         sizeof(sa->rss_key));
1401                 return -EINVAL;
1402         }
1403
1404         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1405                 sfc_err(sa, "unsupported hash functions requested");
1406                 return -EINVAL;
1407         }
1408
1409         sfc_adapter_lock(sa);
1410
1411         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1412
1413         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1414                                    EFX_RX_HASHALG_TOEPLITZ,
1415                                    efx_hash_types, B_TRUE);
1416         if (rc != 0)
1417                 goto fail_scale_mode_set;
1418
1419         if (rss_conf->rss_key != NULL) {
1420                 if (sa->state == SFC_ADAPTER_STARTED) {
1421                         rc = efx_rx_scale_key_set(sa->nic,
1422                                                   EFX_RSS_CONTEXT_DEFAULT,
1423                                                   rss_conf->rss_key,
1424                                                   sizeof(sa->rss_key));
1425                         if (rc != 0)
1426                                 goto fail_scale_key_set;
1427                 }
1428
1429                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1430         }
1431
1432         sa->rss_hash_types = efx_hash_types;
1433
1434         sfc_adapter_unlock(sa);
1435
1436         return 0;
1437
1438 fail_scale_key_set:
1439         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1440                                   EFX_RX_HASHALG_TOEPLITZ,
1441                                   sa->rss_hash_types, B_TRUE) != 0)
1442                 sfc_err(sa, "failed to restore RSS mode");
1443
1444 fail_scale_mode_set:
1445         sfc_adapter_unlock(sa);
1446         return -rc;
1447 }
1448
1449 static int
1450 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1451                        struct rte_eth_rss_reta_entry64 *reta_conf,
1452                        uint16_t reta_size)
1453 {
1454         struct sfc_adapter *sa = dev->data->dev_private;
1455         struct sfc_port *port = &sa->port;
1456         int entry;
1457
1458         if ((sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) || port->isolated)
1459                 return -ENOTSUP;
1460
1461         if (sa->rss_channels == 0)
1462                 return -EINVAL;
1463
1464         if (reta_size != EFX_RSS_TBL_SIZE)
1465                 return -EINVAL;
1466
1467         sfc_adapter_lock(sa);
1468
1469         for (entry = 0; entry < reta_size; entry++) {
1470                 int grp = entry / RTE_RETA_GROUP_SIZE;
1471                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1472
1473                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1474                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1475         }
1476
1477         sfc_adapter_unlock(sa);
1478
1479         return 0;
1480 }
1481
1482 static int
1483 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1484                         struct rte_eth_rss_reta_entry64 *reta_conf,
1485                         uint16_t reta_size)
1486 {
1487         struct sfc_adapter *sa = dev->data->dev_private;
1488         struct sfc_port *port = &sa->port;
1489         unsigned int *rss_tbl_new;
1490         uint16_t entry;
1491         int rc = 0;
1492
1493
1494         if (port->isolated)
1495                 return -ENOTSUP;
1496
1497         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1498                 sfc_err(sa, "RSS is not available");
1499                 return -ENOTSUP;
1500         }
1501
1502         if (sa->rss_channels == 0) {
1503                 sfc_err(sa, "RSS is not configured");
1504                 return -EINVAL;
1505         }
1506
1507         if (reta_size != EFX_RSS_TBL_SIZE) {
1508                 sfc_err(sa, "RETA size is wrong (should be %u)",
1509                         EFX_RSS_TBL_SIZE);
1510                 return -EINVAL;
1511         }
1512
1513         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1514         if (rss_tbl_new == NULL)
1515                 return -ENOMEM;
1516
1517         sfc_adapter_lock(sa);
1518
1519         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1520
1521         for (entry = 0; entry < reta_size; entry++) {
1522                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1523                 struct rte_eth_rss_reta_entry64 *grp;
1524
1525                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1526
1527                 if (grp->mask & (1ull << grp_idx)) {
1528                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1529                                 rc = EINVAL;
1530                                 goto bad_reta_entry;
1531                         }
1532                         rss_tbl_new[entry] = grp->reta[grp_idx];
1533                 }
1534         }
1535
1536         if (sa->state == SFC_ADAPTER_STARTED) {
1537                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1538                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1539                 if (rc != 0)
1540                         goto fail_scale_tbl_set;
1541         }
1542
1543         rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1544
1545 fail_scale_tbl_set:
1546 bad_reta_entry:
1547         sfc_adapter_unlock(sa);
1548
1549         rte_free(rss_tbl_new);
1550
1551         SFC_ASSERT(rc >= 0);
1552         return -rc;
1553 }
1554 #endif
1555
1556 static int
1557 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1558                     enum rte_filter_op filter_op,
1559                     void *arg)
1560 {
1561         struct sfc_adapter *sa = dev->data->dev_private;
1562         int rc = ENOTSUP;
1563
1564         sfc_log_init(sa, "entry");
1565
1566         switch (filter_type) {
1567         case RTE_ETH_FILTER_NONE:
1568                 sfc_err(sa, "Global filters configuration not supported");
1569                 break;
1570         case RTE_ETH_FILTER_MACVLAN:
1571                 sfc_err(sa, "MACVLAN filters not supported");
1572                 break;
1573         case RTE_ETH_FILTER_ETHERTYPE:
1574                 sfc_err(sa, "EtherType filters not supported");
1575                 break;
1576         case RTE_ETH_FILTER_FLEXIBLE:
1577                 sfc_err(sa, "Flexible filters not supported");
1578                 break;
1579         case RTE_ETH_FILTER_SYN:
1580                 sfc_err(sa, "SYN filters not supported");
1581                 break;
1582         case RTE_ETH_FILTER_NTUPLE:
1583                 sfc_err(sa, "NTUPLE filters not supported");
1584                 break;
1585         case RTE_ETH_FILTER_TUNNEL:
1586                 sfc_err(sa, "Tunnel filters not supported");
1587                 break;
1588         case RTE_ETH_FILTER_FDIR:
1589                 sfc_err(sa, "Flow Director filters not supported");
1590                 break;
1591         case RTE_ETH_FILTER_HASH:
1592                 sfc_err(sa, "Hash filters not supported");
1593                 break;
1594         case RTE_ETH_FILTER_GENERIC:
1595                 if (filter_op != RTE_ETH_FILTER_GET) {
1596                         rc = EINVAL;
1597                 } else {
1598                         *(const void **)arg = &sfc_flow_ops;
1599                         rc = 0;
1600                 }
1601                 break;
1602         default:
1603                 sfc_err(sa, "Unknown filter type %u", filter_type);
1604                 break;
1605         }
1606
1607         sfc_log_init(sa, "exit: %d", -rc);
1608         SFC_ASSERT(rc >= 0);
1609         return -rc;
1610 }
1611
1612 static const struct eth_dev_ops sfc_eth_dev_ops = {
1613         .dev_configure                  = sfc_dev_configure,
1614         .dev_start                      = sfc_dev_start,
1615         .dev_stop                       = sfc_dev_stop,
1616         .dev_set_link_up                = sfc_dev_set_link_up,
1617         .dev_set_link_down              = sfc_dev_set_link_down,
1618         .dev_close                      = sfc_dev_close,
1619         .promiscuous_enable             = sfc_dev_promisc_enable,
1620         .promiscuous_disable            = sfc_dev_promisc_disable,
1621         .allmulticast_enable            = sfc_dev_allmulti_enable,
1622         .allmulticast_disable           = sfc_dev_allmulti_disable,
1623         .link_update                    = sfc_dev_link_update,
1624         .stats_get                      = sfc_stats_get,
1625         .stats_reset                    = sfc_stats_reset,
1626         .xstats_get                     = sfc_xstats_get,
1627         .xstats_reset                   = sfc_stats_reset,
1628         .xstats_get_names               = sfc_xstats_get_names,
1629         .dev_infos_get                  = sfc_dev_infos_get,
1630         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1631         .mtu_set                        = sfc_dev_set_mtu,
1632         .rx_queue_start                 = sfc_rx_queue_start,
1633         .rx_queue_stop                  = sfc_rx_queue_stop,
1634         .tx_queue_start                 = sfc_tx_queue_start,
1635         .tx_queue_stop                  = sfc_tx_queue_stop,
1636         .rx_queue_setup                 = sfc_rx_queue_setup,
1637         .rx_queue_release               = sfc_rx_queue_release,
1638         .rx_queue_count                 = sfc_rx_queue_count,
1639         .rx_descriptor_done             = sfc_rx_descriptor_done,
1640         .rx_descriptor_status           = sfc_rx_descriptor_status,
1641         .tx_descriptor_status           = sfc_tx_descriptor_status,
1642         .tx_queue_setup                 = sfc_tx_queue_setup,
1643         .tx_queue_release               = sfc_tx_queue_release,
1644         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1645         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1646         .mac_addr_set                   = sfc_mac_addr_set,
1647         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1648         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1649 #if EFSYS_OPT_RX_SCALE
1650         .reta_update                    = sfc_dev_rss_reta_update,
1651         .reta_query                     = sfc_dev_rss_reta_query,
1652         .rss_hash_update                = sfc_dev_rss_hash_update,
1653         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1654 #endif
1655         .filter_ctrl                    = sfc_dev_filter_ctrl,
1656         .set_mc_addr_list               = sfc_set_mc_addr_list,
1657         .rxq_info_get                   = sfc_rx_queue_info_get,
1658         .txq_info_get                   = sfc_tx_queue_info_get,
1659         .fw_version_get                 = sfc_fw_version_get,
1660         .xstats_get_by_id               = sfc_xstats_get_by_id,
1661         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1662 };
1663
1664 /**
1665  * Duplicate a string in potentially shared memory required for
1666  * multi-process support.
1667  *
1668  * strdup() allocates from process-local heap/memory.
1669  */
1670 static char *
1671 sfc_strdup(const char *str)
1672 {
1673         size_t size;
1674         char *copy;
1675
1676         if (str == NULL)
1677                 return NULL;
1678
1679         size = strlen(str) + 1;
1680         copy = rte_malloc(__func__, size, 0);
1681         if (copy != NULL)
1682                 rte_memcpy(copy, str, size);
1683
1684         return copy;
1685 }
1686
1687 static int
1688 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1689 {
1690         struct sfc_adapter *sa = dev->data->dev_private;
1691         unsigned int avail_caps = 0;
1692         const char *rx_name = NULL;
1693         const char *tx_name = NULL;
1694         int rc;
1695
1696         switch (sa->family) {
1697         case EFX_FAMILY_HUNTINGTON:
1698         case EFX_FAMILY_MEDFORD:
1699                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1700                 break;
1701         default:
1702                 break;
1703         }
1704
1705         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1706                                 sfc_kvarg_string_handler, &rx_name);
1707         if (rc != 0)
1708                 goto fail_kvarg_rx_datapath;
1709
1710         if (rx_name != NULL) {
1711                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1712                 if (sa->dp_rx == NULL) {
1713                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1714                         rc = ENOENT;
1715                         goto fail_dp_rx;
1716                 }
1717                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1718                         sfc_err(sa,
1719                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1720                                 rx_name);
1721                         rc = EINVAL;
1722                         goto fail_dp_rx_caps;
1723                 }
1724         } else {
1725                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1726                 if (sa->dp_rx == NULL) {
1727                         sfc_err(sa, "Rx datapath by caps %#x not found",
1728                                 avail_caps);
1729                         rc = ENOENT;
1730                         goto fail_dp_rx;
1731                 }
1732         }
1733
1734         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1735         if (sa->dp_rx_name == NULL) {
1736                 rc = ENOMEM;
1737                 goto fail_dp_rx_name;
1738         }
1739
1740         sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1741
1742         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1743
1744         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1745                                 sfc_kvarg_string_handler, &tx_name);
1746         if (rc != 0)
1747                 goto fail_kvarg_tx_datapath;
1748
1749         if (tx_name != NULL) {
1750                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1751                 if (sa->dp_tx == NULL) {
1752                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1753                         rc = ENOENT;
1754                         goto fail_dp_tx;
1755                 }
1756                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1757                         sfc_err(sa,
1758                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1759                                 tx_name);
1760                         rc = EINVAL;
1761                         goto fail_dp_tx_caps;
1762                 }
1763         } else {
1764                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1765                 if (sa->dp_tx == NULL) {
1766                         sfc_err(sa, "Tx datapath by caps %#x not found",
1767                                 avail_caps);
1768                         rc = ENOENT;
1769                         goto fail_dp_tx;
1770                 }
1771         }
1772
1773         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1774         if (sa->dp_tx_name == NULL) {
1775                 rc = ENOMEM;
1776                 goto fail_dp_tx_name;
1777         }
1778
1779         sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1780
1781         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1782
1783         dev->dev_ops = &sfc_eth_dev_ops;
1784
1785         return 0;
1786
1787 fail_dp_tx_name:
1788 fail_dp_tx_caps:
1789         sa->dp_tx = NULL;
1790
1791 fail_dp_tx:
1792 fail_kvarg_tx_datapath:
1793         rte_free(sa->dp_rx_name);
1794         sa->dp_rx_name = NULL;
1795
1796 fail_dp_rx_name:
1797 fail_dp_rx_caps:
1798         sa->dp_rx = NULL;
1799
1800 fail_dp_rx:
1801 fail_kvarg_rx_datapath:
1802         return rc;
1803 }
1804
1805 static void
1806 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1807 {
1808         struct sfc_adapter *sa = dev->data->dev_private;
1809
1810         dev->dev_ops = NULL;
1811         dev->rx_pkt_burst = NULL;
1812         dev->tx_pkt_burst = NULL;
1813
1814         rte_free(sa->dp_tx_name);
1815         sa->dp_tx_name = NULL;
1816         sa->dp_tx = NULL;
1817
1818         rte_free(sa->dp_rx_name);
1819         sa->dp_rx_name = NULL;
1820         sa->dp_rx = NULL;
1821 }
1822
1823 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1824         .rxq_info_get                   = sfc_rx_queue_info_get,
1825         .txq_info_get                   = sfc_tx_queue_info_get,
1826 };
1827
1828 static int
1829 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1830 {
1831         /*
1832          * Device private data has really many process-local pointers.
1833          * Below code should be extremely careful to use data located
1834          * in shared memory only.
1835          */
1836         struct sfc_adapter *sa = dev->data->dev_private;
1837         const struct sfc_dp_rx *dp_rx;
1838         const struct sfc_dp_tx *dp_tx;
1839         int rc;
1840
1841         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1842         if (dp_rx == NULL) {
1843                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1844                 rc = ENOENT;
1845                 goto fail_dp_rx;
1846         }
1847         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1848                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1849                         sa->dp_tx_name);
1850                 rc = EINVAL;
1851                 goto fail_dp_rx_multi_process;
1852         }
1853
1854         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1855         if (dp_tx == NULL) {
1856                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1857                 rc = ENOENT;
1858                 goto fail_dp_tx;
1859         }
1860         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1861                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1862                         sa->dp_tx_name);
1863                 rc = EINVAL;
1864                 goto fail_dp_tx_multi_process;
1865         }
1866
1867         dev->rx_pkt_burst = dp_rx->pkt_burst;
1868         dev->tx_pkt_burst = dp_tx->pkt_burst;
1869         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1870
1871         return 0;
1872
1873 fail_dp_tx_multi_process:
1874 fail_dp_tx:
1875 fail_dp_rx_multi_process:
1876 fail_dp_rx:
1877         return rc;
1878 }
1879
1880 static void
1881 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1882 {
1883         dev->dev_ops = NULL;
1884         dev->tx_pkt_burst = NULL;
1885         dev->rx_pkt_burst = NULL;
1886 }
1887
1888 static void
1889 sfc_register_dp(void)
1890 {
1891         /* Register once */
1892         if (TAILQ_EMPTY(&sfc_dp_head)) {
1893                 /* Prefer EF10 datapath */
1894                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1895                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1896
1897                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1898                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1899                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1900         }
1901 }
1902
1903 static int
1904 sfc_eth_dev_init(struct rte_eth_dev *dev)
1905 {
1906         struct sfc_adapter *sa = dev->data->dev_private;
1907         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1908         int rc;
1909         const efx_nic_cfg_t *encp;
1910         const struct ether_addr *from;
1911
1912         sfc_register_dp();
1913
1914         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1915                 return -sfc_eth_dev_secondary_set_ops(dev);
1916
1917         /* Required for logging */
1918         sa->pci_addr = pci_dev->addr;
1919         sa->port_id = dev->data->port_id;
1920
1921         sa->eth_dev = dev;
1922
1923         /* Copy PCI device info to the dev->data */
1924         rte_eth_copy_pci_info(dev, pci_dev);
1925
1926         sa->logtype_main = sfc_register_logtype(sa, SFC_LOGTYPE_MAIN_STR,
1927                                                 RTE_LOG_NOTICE);
1928
1929         rc = sfc_kvargs_parse(sa);
1930         if (rc != 0)
1931                 goto fail_kvargs_parse;
1932
1933         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1934                                 sfc_kvarg_bool_handler, &sa->debug_init);
1935         if (rc != 0)
1936                 goto fail_kvarg_debug_init;
1937
1938         sfc_log_init(sa, "entry");
1939
1940         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1941         if (dev->data->mac_addrs == NULL) {
1942                 rc = ENOMEM;
1943                 goto fail_mac_addrs;
1944         }
1945
1946         sfc_adapter_lock_init(sa);
1947         sfc_adapter_lock(sa);
1948
1949         sfc_log_init(sa, "probing");
1950         rc = sfc_probe(sa);
1951         if (rc != 0)
1952                 goto fail_probe;
1953
1954         sfc_log_init(sa, "set device ops");
1955         rc = sfc_eth_dev_set_ops(dev);
1956         if (rc != 0)
1957                 goto fail_set_ops;
1958
1959         sfc_log_init(sa, "attaching");
1960         rc = sfc_attach(sa);
1961         if (rc != 0)
1962                 goto fail_attach;
1963
1964         encp = efx_nic_cfg_get(sa->nic);
1965
1966         /*
1967          * The arguments are really reverse order in comparison to
1968          * Linux kernel. Copy from NIC config to Ethernet device data.
1969          */
1970         from = (const struct ether_addr *)(encp->enc_mac_addr);
1971         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1972
1973         sfc_adapter_unlock(sa);
1974
1975         sfc_log_init(sa, "done");
1976         return 0;
1977
1978 fail_attach:
1979         sfc_eth_dev_clear_ops(dev);
1980
1981 fail_set_ops:
1982         sfc_unprobe(sa);
1983
1984 fail_probe:
1985         sfc_adapter_unlock(sa);
1986         sfc_adapter_lock_fini(sa);
1987         rte_free(dev->data->mac_addrs);
1988         dev->data->mac_addrs = NULL;
1989
1990 fail_mac_addrs:
1991 fail_kvarg_debug_init:
1992         sfc_kvargs_cleanup(sa);
1993
1994 fail_kvargs_parse:
1995         sfc_log_init(sa, "failed %d", rc);
1996         SFC_ASSERT(rc > 0);
1997         return -rc;
1998 }
1999
2000 static int
2001 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2002 {
2003         struct sfc_adapter *sa;
2004
2005         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2006                 sfc_eth_dev_secondary_clear_ops(dev);
2007                 return 0;
2008         }
2009
2010         sa = dev->data->dev_private;
2011         sfc_log_init(sa, "entry");
2012
2013         sfc_adapter_lock(sa);
2014
2015         sfc_eth_dev_clear_ops(dev);
2016
2017         sfc_detach(sa);
2018         sfc_unprobe(sa);
2019
2020         rte_free(dev->data->mac_addrs);
2021         dev->data->mac_addrs = NULL;
2022
2023         sfc_kvargs_cleanup(sa);
2024
2025         sfc_adapter_unlock(sa);
2026         sfc_adapter_lock_fini(sa);
2027
2028         sfc_log_init(sa, "done");
2029
2030         /* Required for logging, so cleanup last */
2031         sa->eth_dev = NULL;
2032         return 0;
2033 }
2034
2035 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2036         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2037         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2038         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2039         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2040         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2041         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2042         { .vendor_id = 0 /* sentinel */ }
2043 };
2044
2045 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2046         struct rte_pci_device *pci_dev)
2047 {
2048         return rte_eth_dev_pci_generic_probe(pci_dev,
2049                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2050 }
2051
2052 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2053 {
2054         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2055 }
2056
2057 static struct rte_pci_driver sfc_efx_pmd = {
2058         .id_table = pci_id_sfc_efx_map,
2059         .drv_flags =
2060                 RTE_PCI_DRV_INTR_LSC |
2061                 RTE_PCI_DRV_NEED_MAPPING,
2062         .probe = sfc_eth_dev_pci_probe,
2063         .remove = sfc_eth_dev_pci_remove,
2064 };
2065
2066 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2067 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2068 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2069 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2070         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2071         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2072         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2073         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
2074         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
2075         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);
2076
2077 RTE_INIT(sfc_driver_register_logtype);
2078 static void
2079 sfc_driver_register_logtype(void)
2080 {
2081         int ret;
2082
2083         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2084                                                    RTE_LOG_NOTICE);
2085         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2086 }