drivers/net/sfc/sfc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  * Copyright (c) 2016-2018 Solarflare Communications Inc.
   4  * All rights reserved.
   5  *
   6  * This software was jointly developed between OKTET Labs (under contract
   7  * for Solarflare) and Solarflare Communications, Inc.
   8  */
   9
  10 #include <rte_dev.h>
  11 #include <rte_ethdev_driver.h>
  12 #include <rte_ethdev_pci.h>
  13 #include <rte_pci.h>
  14 #include <rte_bus_pci.h>
  15 #include <rte_errno.h>
  16 #include <rte_string_fns.h>
  17
  18 #include "efx.h"
  19
  20 #include "sfc.h"
  21 #include "sfc_debug.h"
  22 #include "sfc_log.h"
  23 #include "sfc_kvargs.h"
  24 #include "sfc_ev.h"
  25 #include "sfc_rx.h"
  26 #include "sfc_tx.h"
  27 #include "sfc_flow.h"
  28 #include "sfc_dp.h"
  29 #include "sfc_dp_rx.h"
  30
  31 uint32_t sfc_logtype_driver;
  32
  33 static struct sfc_dp_list sfc_dp_head =
  34         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  35
  36 static int
  37 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  38 {
  39         struct sfc_adapter *sa = dev->data->dev_private;
  40         efx_nic_fw_info_t enfi;
  41         int ret;
  42         int rc;
  43
  44         /*
  45          * Return value of the callback is likely supposed to be
  46          * equal to or greater than 0, nevertheless, if an error
  47          * occurs, it will be desirable to pass it to the caller
  48          */
  49         if ((fw_version == NULL) || (fw_size == 0))
  50                 return -EINVAL;
  51
  52         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  53         if (rc != 0)
  54                 return -rc;
  55
  56         ret = snprintf(fw_version, fw_size,
  57                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  58                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  59                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  60         if (ret < 0)
  61                 return ret;
  62
  63         if (enfi.enfi_dpcpu_fw_ids_valid) {
  64                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  65                 int ret_extra;
  66
  67                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  68                                      fw_size - dpcpu_fw_ids_offset,
  69                                      " rx%" PRIx16 " tx%" PRIx16,
  70                                      enfi.enfi_rx_dpcpu_fw_id,
  71                                      enfi.enfi_tx_dpcpu_fw_id);
  72                 if (ret_extra < 0)
  73                         return ret_extra;
  74
  75                 ret += ret_extra;
  76         }
  77
  78         if (fw_size < (size_t)(++ret))
  79                 return ret;
  80         else
  81                 return 0;
  82 }
  83
  84 static void
  85 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
  86 {
  87         struct sfc_adapter *sa = dev->data->dev_private;
  88         struct sfc_rss *rss = &sa->rss;
  89         uint64_t txq_offloads_def = 0;
  90
  91         sfc_log_init(sa, "entry");
  92
  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_25000FDX)
 102                 dev_info->speed_capa |= ETH_LINK_SPEED_25G;
 103         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 104                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 105         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_50000FDX)
 106                 dev_info->speed_capa |= ETH_LINK_SPEED_50G;
 107         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_100000FDX)
 108                 dev_info->speed_capa |= ETH_LINK_SPEED_100G;
 109
 110         dev_info->max_rx_queues = sa->rxq_max;
 111         dev_info->max_tx_queues = sa->txq_max;
 112
 113         /* By default packets are dropped if no descriptors are available */
 114         dev_info->default_rxconf.rx_drop_en = 1;
 115
 116         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 117
 118         /*
 119          * rx_offload_capa includes both device and queue offloads since
 120          * the latter may be requested on a per device basis which makes
 121          * sense when some offloads are needed to be set on all queues.
 122          */
 123         dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 124                                     dev_info->rx_queue_offload_capa;
 125
 126         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 127
 128         /*
 129          * tx_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->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 134                                     dev_info->tx_queue_offload_capa;
 135
 136         if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 137                 txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 138
 139         dev_info->default_txconf.offloads |= txq_offloads_def;
 140
 141         if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
 142                 uint64_t rte_hf = 0;
 143                 unsigned int i;
 144
 145                 for (i = 0; i < rss->hf_map_nb_entries; ++i)
 146                         rte_hf |= rss->hf_map[i].rte;
 147
 148                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 149                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 150                 dev_info->flow_type_rss_offloads = rte_hf;
 151         }
 152
 153         /* Initialize to hardware limits */
 154         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 155         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 156         /* The RXQ hardware requires that the descriptor count is a power
 157          * of 2, but rx_desc_lim cannot properly describe that constraint.
 158          */
 159         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 160
 161         /* Initialize to hardware limits */
 162         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 163         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 164         /*
 165          * The TXQ hardware requires that the descriptor count is a power
 166          * of 2, but tx_desc_lim cannot properly describe that constraint
 167          */
 168         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 169
 170         if (sa->dp_rx->get_dev_info != NULL)
 171                 sa->dp_rx->get_dev_info(dev_info);
 172         if (sa->dp_tx->get_dev_info != NULL)
 173                 sa->dp_tx->get_dev_info(dev_info);
 174
 175         dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
 176                              RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 177 }
 178
 179 static const uint32_t *
 180 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 181 {
 182         struct sfc_adapter *sa = dev->data->dev_private;
 183         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 184         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 185
 186         return sa->dp_rx->supported_ptypes_get(tunnel_encaps);
 187 }
 188
 189 static int
 190 sfc_dev_configure(struct rte_eth_dev *dev)
 191 {
 192         struct rte_eth_dev_data *dev_data = dev->data;
 193         struct sfc_adapter *sa = dev_data->dev_private;
 194         int rc;
 195
 196         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 197                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 198
 199         sfc_adapter_lock(sa);
 200         switch (sa->state) {
 201         case SFC_ADAPTER_CONFIGURED:
 202                 /* FALLTHROUGH */
 203         case SFC_ADAPTER_INITIALIZED:
 204                 rc = sfc_configure(sa);
 205                 break;
 206         default:
 207                 sfc_err(sa, "unexpected adapter state %u to configure",
 208                         sa->state);
 209                 rc = EINVAL;
 210                 break;
 211         }
 212         sfc_adapter_unlock(sa);
 213
 214         sfc_log_init(sa, "done %d", rc);
 215         SFC_ASSERT(rc >= 0);
 216         return -rc;
 217 }
 218
 219 static int
 220 sfc_dev_start(struct rte_eth_dev *dev)
 221 {
 222         struct sfc_adapter *sa = dev->data->dev_private;
 223         int rc;
 224
 225         sfc_log_init(sa, "entry");
 226
 227         sfc_adapter_lock(sa);
 228         rc = sfc_start(sa);
 229         sfc_adapter_unlock(sa);
 230
 231         sfc_log_init(sa, "done %d", rc);
 232         SFC_ASSERT(rc >= 0);
 233         return -rc;
 234 }
 235
 236 static int
 237 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 238 {
 239         struct sfc_adapter *sa = dev->data->dev_private;
 240         struct rte_eth_link current_link;
 241         int ret;
 242
 243         sfc_log_init(sa, "entry");
 244
 245         if (sa->state != SFC_ADAPTER_STARTED) {
 246                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 247         } else if (wait_to_complete) {
 248                 efx_link_mode_t link_mode;
 249
 250                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 251                         link_mode = EFX_LINK_UNKNOWN;
 252                 sfc_port_link_mode_to_info(link_mode, &current_link);
 253
 254         } else {
 255                 sfc_ev_mgmt_qpoll(sa);
 256                 rte_eth_linkstatus_get(dev, &current_link);
 257         }
 258
 259         ret = rte_eth_linkstatus_set(dev, &current_link);
 260         if (ret == 0)
 261                 sfc_notice(sa, "Link status is %s",
 262                            current_link.link_status ? "UP" : "DOWN");
 263
 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         sfc_rx_qfini(sa, sw_index);
 448
 449         sfc_adapter_unlock(sa);
 450 }
 451
 452 static int
 453 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 454                    uint16_t nb_tx_desc, unsigned int socket_id,
 455                    const struct rte_eth_txconf *tx_conf)
 456 {
 457         struct sfc_adapter *sa = dev->data->dev_private;
 458         int rc;
 459
 460         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 461                      tx_queue_id, nb_tx_desc, socket_id);
 462
 463         sfc_adapter_lock(sa);
 464
 465         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 466         if (rc != 0)
 467                 goto fail_tx_qinit;
 468
 469         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq->dp;
 470
 471         sfc_adapter_unlock(sa);
 472         return 0;
 473
 474 fail_tx_qinit:
 475         sfc_adapter_unlock(sa);
 476         SFC_ASSERT(rc > 0);
 477         return -rc;
 478 }
 479
 480 static void
 481 sfc_tx_queue_release(void *queue)
 482 {
 483         struct sfc_dp_txq *dp_txq = queue;
 484         struct sfc_txq *txq;
 485         unsigned int sw_index;
 486         struct sfc_adapter *sa;
 487
 488         if (dp_txq == NULL)
 489                 return;
 490
 491         txq = sfc_txq_by_dp_txq(dp_txq);
 492         sw_index = sfc_txq_sw_index(txq);
 493
 494         SFC_ASSERT(txq->evq != NULL);
 495         sa = txq->evq->sa;
 496
 497         sfc_log_init(sa, "TxQ = %u", sw_index);
 498
 499         sfc_adapter_lock(sa);
 500
 501         sfc_tx_qfini(sa, sw_index);
 502
 503         sfc_adapter_unlock(sa);
 504 }
 505
 506 static int
 507 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 508 {
 509         struct sfc_adapter *sa = dev->data->dev_private;
 510         struct sfc_port *port = &sa->port;
 511         uint64_t *mac_stats;
 512         int ret;
 513
 514         rte_spinlock_lock(&port->mac_stats_lock);
 515
 516         ret = sfc_port_update_mac_stats(sa);
 517         if (ret != 0)
 518                 goto unlock;
 519
 520         mac_stats = port->mac_stats_buf;
 521
 522         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 523                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 524                 stats->ipackets =
 525                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 526                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 527                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 528                 stats->opackets =
 529                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 530                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 531                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 532                 stats->ibytes =
 533                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 534                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 535                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 536                 stats->obytes =
 537                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 538                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 539                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 540                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 541                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 542                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 543         } else {
 544                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 545                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 546                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 547                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 548                 /*
 549                  * Take into account stats which are whenever supported
 550                  * on EF10. If some stat is not supported by current
 551                  * firmware variant or HW revision, it is guaranteed
 552                  * to be zero in mac_stats.
 553                  */
 554                 stats->imissed =
 555                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 556                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 557                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 558                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 559                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 560                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 561                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 562                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 563                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 564                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 565                 stats->ierrors =
 566                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 567                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 568                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 569                 /* no oerrors counters supported on EF10 */
 570         }
 571
 572 unlock:
 573         rte_spinlock_unlock(&port->mac_stats_lock);
 574         SFC_ASSERT(ret >= 0);
 575         return -ret;
 576 }
 577
 578 static void
 579 sfc_stats_reset(struct rte_eth_dev *dev)
 580 {
 581         struct sfc_adapter *sa = dev->data->dev_private;
 582         struct sfc_port *port = &sa->port;
 583         int rc;
 584
 585         if (sa->state != SFC_ADAPTER_STARTED) {
 586                 /*
 587                  * The operation cannot be done if port is not started; it
 588                  * will be scheduled to be done during the next port start
 589                  */
 590                 port->mac_stats_reset_pending = B_TRUE;
 591                 return;
 592         }
 593
 594         rc = sfc_port_reset_mac_stats(sa);
 595         if (rc != 0)
 596                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 597 }
 598
 599 static int
 600 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 601                unsigned int xstats_count)
 602 {
 603         struct sfc_adapter *sa = dev->data->dev_private;
 604         struct sfc_port *port = &sa->port;
 605         uint64_t *mac_stats;
 606         int rc;
 607         unsigned int i;
 608         int nstats = 0;
 609
 610         rte_spinlock_lock(&port->mac_stats_lock);
 611
 612         rc = sfc_port_update_mac_stats(sa);
 613         if (rc != 0) {
 614                 SFC_ASSERT(rc > 0);
 615                 nstats = -rc;
 616                 goto unlock;
 617         }
 618
 619         mac_stats = port->mac_stats_buf;
 620
 621         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 622                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 623                         if (xstats != NULL && nstats < (int)xstats_count) {
 624                                 xstats[nstats].id = nstats;
 625                                 xstats[nstats].value = mac_stats[i];
 626                         }
 627                         nstats++;
 628                 }
 629         }
 630
 631 unlock:
 632         rte_spinlock_unlock(&port->mac_stats_lock);
 633
 634         return nstats;
 635 }
 636
 637 static int
 638 sfc_xstats_get_names(struct rte_eth_dev *dev,
 639                      struct rte_eth_xstat_name *xstats_names,
 640                      unsigned int xstats_count)
 641 {
 642         struct sfc_adapter *sa = dev->data->dev_private;
 643         struct sfc_port *port = &sa->port;
 644         unsigned int i;
 645         unsigned int nstats = 0;
 646
 647         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 648                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 649                         if (xstats_names != NULL && nstats < xstats_count)
 650                                 strlcpy(xstats_names[nstats].name,
 651                                         efx_mac_stat_name(sa->nic, i),
 652                                         sizeof(xstats_names[0].name));
 653                         nstats++;
 654                 }
 655         }
 656
 657         return nstats;
 658 }
 659
 660 static int
 661 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 662                      uint64_t *values, unsigned int n)
 663 {
 664         struct sfc_adapter *sa = dev->data->dev_private;
 665         struct sfc_port *port = &sa->port;
 666         uint64_t *mac_stats;
 667         unsigned int nb_supported = 0;
 668         unsigned int nb_written = 0;
 669         unsigned int i;
 670         int ret;
 671         int rc;
 672
 673         if (unlikely(values == NULL) ||
 674             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 675                 return port->mac_stats_nb_supported;
 676
 677         rte_spinlock_lock(&port->mac_stats_lock);
 678
 679         rc = sfc_port_update_mac_stats(sa);
 680         if (rc != 0) {
 681                 SFC_ASSERT(rc > 0);
 682                 ret = -rc;
 683                 goto unlock;
 684         }
 685
 686         mac_stats = port->mac_stats_buf;
 687
 688         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 689                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 690                         continue;
 691
 692                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 693                         values[nb_written++] = mac_stats[i];
 694
 695                 ++nb_supported;
 696         }
 697
 698         ret = nb_written;
 699
 700 unlock:
 701         rte_spinlock_unlock(&port->mac_stats_lock);
 702
 703         return ret;
 704 }
 705
 706 static int
 707 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 708                            struct rte_eth_xstat_name *xstats_names,
 709                            const uint64_t *ids, unsigned int size)
 710 {
 711         struct sfc_adapter *sa = dev->data->dev_private;
 712         struct sfc_port *port = &sa->port;
 713         unsigned int nb_supported = 0;
 714         unsigned int nb_written = 0;
 715         unsigned int i;
 716
 717         if (unlikely(xstats_names == NULL) ||
 718             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 719                 return port->mac_stats_nb_supported;
 720
 721         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 722                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 723                         continue;
 724
 725                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 726                         char *name = xstats_names[nb_written++].name;
 727
 728                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 729                                 sizeof(xstats_names[0].name));
 730                 }
 731
 732                 ++nb_supported;
 733         }
 734
 735         return nb_written;
 736 }
 737
 738 static int
 739 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 740 {
 741         struct sfc_adapter *sa = dev->data->dev_private;
 742         unsigned int wanted_fc, link_fc;
 743
 744         memset(fc_conf, 0, sizeof(*fc_conf));
 745
 746         sfc_adapter_lock(sa);
 747
 748         if (sa->state == SFC_ADAPTER_STARTED)
 749                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 750         else
 751                 link_fc = sa->port.flow_ctrl;
 752
 753         switch (link_fc) {
 754         case 0:
 755                 fc_conf->mode = RTE_FC_NONE;
 756                 break;
 757         case EFX_FCNTL_RESPOND:
 758                 fc_conf->mode = RTE_FC_RX_PAUSE;
 759                 break;
 760         case EFX_FCNTL_GENERATE:
 761                 fc_conf->mode = RTE_FC_TX_PAUSE;
 762                 break;
 763         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 764                 fc_conf->mode = RTE_FC_FULL;
 765                 break;
 766         default:
 767                 sfc_err(sa, "%s: unexpected flow control value %#x",
 768                         __func__, link_fc);
 769         }
 770
 771         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 772
 773         sfc_adapter_unlock(sa);
 774
 775         return 0;
 776 }
 777
 778 static int
 779 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 780 {
 781         struct sfc_adapter *sa = dev->data->dev_private;
 782         struct sfc_port *port = &sa->port;
 783         unsigned int fcntl;
 784         int rc;
 785
 786         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 787             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 788             fc_conf->mac_ctrl_frame_fwd != 0) {
 789                 sfc_err(sa, "unsupported flow control settings specified");
 790                 rc = EINVAL;
 791                 goto fail_inval;
 792         }
 793
 794         switch (fc_conf->mode) {
 795         case RTE_FC_NONE:
 796                 fcntl = 0;
 797                 break;
 798         case RTE_FC_RX_PAUSE:
 799                 fcntl = EFX_FCNTL_RESPOND;
 800                 break;
 801         case RTE_FC_TX_PAUSE:
 802                 fcntl = EFX_FCNTL_GENERATE;
 803                 break;
 804         case RTE_FC_FULL:
 805                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 806                 break;
 807         default:
 808                 rc = EINVAL;
 809                 goto fail_inval;
 810         }
 811
 812         sfc_adapter_lock(sa);
 813
 814         if (sa->state == SFC_ADAPTER_STARTED) {
 815                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 816                 if (rc != 0)
 817                         goto fail_mac_fcntl_set;
 818         }
 819
 820         port->flow_ctrl = fcntl;
 821         port->flow_ctrl_autoneg = fc_conf->autoneg;
 822
 823         sfc_adapter_unlock(sa);
 824
 825         return 0;
 826
 827 fail_mac_fcntl_set:
 828         sfc_adapter_unlock(sa);
 829 fail_inval:
 830         SFC_ASSERT(rc > 0);
 831         return -rc;
 832 }
 833
 834 static int
 835 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 836 {
 837         struct sfc_adapter *sa = dev->data->dev_private;
 838         size_t pdu = EFX_MAC_PDU(mtu);
 839         size_t old_pdu;
 840         int rc;
 841
 842         sfc_log_init(sa, "mtu=%u", mtu);
 843
 844         rc = EINVAL;
 845         if (pdu < EFX_MAC_PDU_MIN) {
 846                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 847                         (unsigned int)mtu, (unsigned int)pdu,
 848                         EFX_MAC_PDU_MIN);
 849                 goto fail_inval;
 850         }
 851         if (pdu > EFX_MAC_PDU_MAX) {
 852                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 853                         (unsigned int)mtu, (unsigned int)pdu,
 854                         EFX_MAC_PDU_MAX);
 855                 goto fail_inval;
 856         }
 857
 858         sfc_adapter_lock(sa);
 859
 860         if (pdu != sa->port.pdu) {
 861                 if (sa->state == SFC_ADAPTER_STARTED) {
 862                         sfc_stop(sa);
 863
 864                         old_pdu = sa->port.pdu;
 865                         sa->port.pdu = pdu;
 866                         rc = sfc_start(sa);
 867                         if (rc != 0)
 868                                 goto fail_start;
 869                 } else {
 870                         sa->port.pdu = pdu;
 871                 }
 872         }
 873
 874         /*
 875          * The driver does not use it, but other PMDs update jumbo frame
 876          * flag and max_rx_pkt_len when MTU is set.
 877          */
 878         if (mtu > ETHER_MAX_LEN) {
 879                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 880                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 881         }
 882
 883         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 884
 885         sfc_adapter_unlock(sa);
 886
 887         sfc_log_init(sa, "done");
 888         return 0;
 889
 890 fail_start:
 891         sa->port.pdu = old_pdu;
 892         if (sfc_start(sa) != 0)
 893                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 894                         "PDU max size - port is stopped",
 895                         (unsigned int)pdu, (unsigned int)old_pdu);
 896         sfc_adapter_unlock(sa);
 897
 898 fail_inval:
 899         sfc_log_init(sa, "failed %d", rc);
 900         SFC_ASSERT(rc > 0);
 901         return -rc;
 902 }
 903 static int
 904 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 905 {
 906         struct sfc_adapter *sa = dev->data->dev_private;
 907         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 908         struct sfc_port *port = &sa->port;
 909         struct ether_addr *old_addr = &dev->data->mac_addrs[0];
 910         int rc = 0;
 911
 912         sfc_adapter_lock(sa);
 913
 914         /*
 915          * Copy the address to the device private data so that
 916          * it could be recalled in the case of adapter restart.
 917          */
 918         ether_addr_copy(mac_addr, &port->default_mac_addr);
 919
 920         /*
 921          * Neither of the two following checks can return
 922          * an error. The new MAC address is preserved in
 923          * the device private data and can be activated
 924          * on the next port start if the user prevents
 925          * isolated mode from being enabled.
 926          */
 927         if (port->isolated) {
 928                 sfc_warn(sa, "isolated mode is active on the port");
 929                 sfc_warn(sa, "will not set MAC address");
 930                 goto unlock;
 931         }
 932
 933         if (sa->state != SFC_ADAPTER_STARTED) {
 934                 sfc_notice(sa, "the port is not started");
 935                 sfc_notice(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                         /* Rollback the old address */
 956                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
 957                         (void)sfc_set_rx_mode(sa);
 958                 }
 959         } else {
 960                 sfc_warn(sa, "cannot set MAC address with filters installed");
 961                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 962                 sfc_warn(sa, "(some traffic may be dropped)");
 963
 964                 /*
 965                  * Since setting MAC address with filters installed is not
 966                  * allowed on the adapter, the new MAC address will be set
 967                  * by means of adapter restart. sfc_start() shall retrieve
 968                  * the new address from the device private data and set it.
 969                  */
 970                 sfc_stop(sa);
 971                 rc = sfc_start(sa);
 972                 if (rc != 0)
 973                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 974         }
 975
 976 unlock:
 977         if (rc != 0)
 978                 ether_addr_copy(old_addr, &port->default_mac_addr);
 979
 980         sfc_adapter_unlock(sa);
 981
 982         SFC_ASSERT(rc >= 0);
 983         return -rc;
 984 }
 985
 986
 987 static int
 988 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 989                      uint32_t nb_mc_addr)
 990 {
 991         struct sfc_adapter *sa = dev->data->dev_private;
 992         struct sfc_port *port = &sa->port;
 993         uint8_t *mc_addrs = port->mcast_addrs;
 994         int rc;
 995         unsigned int i;
 996
 997         if (port->isolated) {
 998                 sfc_err(sa, "isolated mode is active on the port");
 999                 sfc_err(sa, "will not set multicast address list");
1000                 return -ENOTSUP;
1001         }
1002
1003         if (mc_addrs == NULL)
1004                 return -ENOBUFS;
1005
1006         if (nb_mc_addr > port->max_mcast_addrs) {
1007                 sfc_err(sa, "too many multicast addresses: %u > %u",
1008                          nb_mc_addr, port->max_mcast_addrs);
1009                 return -EINVAL;
1010         }
1011
1012         for (i = 0; i < nb_mc_addr; ++i) {
1013                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1014                                  EFX_MAC_ADDR_LEN);
1015                 mc_addrs += EFX_MAC_ADDR_LEN;
1016         }
1017
1018         port->nb_mcast_addrs = nb_mc_addr;
1019
1020         if (sa->state != SFC_ADAPTER_STARTED)
1021                 return 0;
1022
1023         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1024                                         port->nb_mcast_addrs);
1025         if (rc != 0)
1026                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1027
1028         SFC_ASSERT(rc >= 0);
1029         return -rc;
1030 }
1031
1032 /*
1033  * The function is used by the secondary process as well. It must not
1034  * use any process-local pointers from the adapter data.
1035  */
1036 static void
1037 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1038                       struct rte_eth_rxq_info *qinfo)
1039 {
1040         struct sfc_adapter *sa = dev->data->dev_private;
1041         struct sfc_rxq_info *rxq_info;
1042         struct sfc_rxq *rxq;
1043
1044         sfc_adapter_lock(sa);
1045
1046         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1047
1048         rxq_info = &sa->rxq_info[rx_queue_id];
1049         rxq = rxq_info->rxq;
1050         SFC_ASSERT(rxq != NULL);
1051
1052         qinfo->mp = rxq->refill_mb_pool;
1053         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
1054         qinfo->conf.rx_drop_en = 1;
1055         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1056         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1057         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1058                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1059                 qinfo->scattered_rx = 1;
1060         }
1061         qinfo->nb_desc = rxq_info->entries;
1062
1063         sfc_adapter_unlock(sa);
1064 }
1065
1066 /*
1067  * The function is used by the secondary process as well. It must not
1068  * use any process-local pointers from the adapter data.
1069  */
1070 static void
1071 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1072                       struct rte_eth_txq_info *qinfo)
1073 {
1074         struct sfc_adapter *sa = dev->data->dev_private;
1075         struct sfc_txq_info *txq_info;
1076
1077         sfc_adapter_lock(sa);
1078
1079         SFC_ASSERT(tx_queue_id < sa->txq_count);
1080
1081         txq_info = &sa->txq_info[tx_queue_id];
1082         SFC_ASSERT(txq_info->txq != NULL);
1083
1084         memset(qinfo, 0, sizeof(*qinfo));
1085
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         if (sa->rxq_info[rx_queue_id].rxq == NULL)
1145                 goto fail_not_setup;
1146
1147         rc = sfc_rx_qstart(sa, rx_queue_id);
1148         if (rc != 0)
1149                 goto fail_rx_qstart;
1150
1151         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1152
1153         sfc_adapter_unlock(sa);
1154
1155         return 0;
1156
1157 fail_rx_qstart:
1158 fail_not_setup:
1159 fail_not_started:
1160         sfc_adapter_unlock(sa);
1161         SFC_ASSERT(rc > 0);
1162         return -rc;
1163 }
1164
1165 static int
1166 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1167 {
1168         struct sfc_adapter *sa = dev->data->dev_private;
1169
1170         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1171
1172         sfc_adapter_lock(sa);
1173         sfc_rx_qstop(sa, rx_queue_id);
1174
1175         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1176
1177         sfc_adapter_unlock(sa);
1178
1179         return 0;
1180 }
1181
1182 static int
1183 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1184 {
1185         struct sfc_adapter *sa = dev->data->dev_private;
1186         int rc;
1187
1188         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1189
1190         sfc_adapter_lock(sa);
1191
1192         rc = EINVAL;
1193         if (sa->state != SFC_ADAPTER_STARTED)
1194                 goto fail_not_started;
1195
1196         if (sa->txq_info[tx_queue_id].txq == NULL)
1197                 goto fail_not_setup;
1198
1199         rc = sfc_tx_qstart(sa, tx_queue_id);
1200         if (rc != 0)
1201                 goto fail_tx_qstart;
1202
1203         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1204
1205         sfc_adapter_unlock(sa);
1206         return 0;
1207
1208 fail_tx_qstart:
1209
1210 fail_not_setup:
1211 fail_not_started:
1212         sfc_adapter_unlock(sa);
1213         SFC_ASSERT(rc > 0);
1214         return -rc;
1215 }
1216
1217 static int
1218 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1219 {
1220         struct sfc_adapter *sa = dev->data->dev_private;
1221
1222         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1223
1224         sfc_adapter_lock(sa);
1225
1226         sfc_tx_qstop(sa, tx_queue_id);
1227
1228         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1229
1230         sfc_adapter_unlock(sa);
1231         return 0;
1232 }
1233
1234 static efx_tunnel_protocol_t
1235 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1236 {
1237         switch (rte_type) {
1238         case RTE_TUNNEL_TYPE_VXLAN:
1239                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1240         case RTE_TUNNEL_TYPE_GENEVE:
1241                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1242         default:
1243                 return EFX_TUNNEL_NPROTOS;
1244         }
1245 }
1246
1247 enum sfc_udp_tunnel_op_e {
1248         SFC_UDP_TUNNEL_ADD_PORT,
1249         SFC_UDP_TUNNEL_DEL_PORT,
1250 };
1251
1252 static int
1253 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1254                       struct rte_eth_udp_tunnel *tunnel_udp,
1255                       enum sfc_udp_tunnel_op_e op)
1256 {
1257         struct sfc_adapter *sa = dev->data->dev_private;
1258         efx_tunnel_protocol_t tunnel_proto;
1259         int rc;
1260
1261         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1262                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1263                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1264                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1265
1266         tunnel_proto =
1267                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1268         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1269                 rc = ENOTSUP;
1270                 goto fail_bad_proto;
1271         }
1272
1273         sfc_adapter_lock(sa);
1274
1275         switch (op) {
1276         case SFC_UDP_TUNNEL_ADD_PORT:
1277                 rc = efx_tunnel_config_udp_add(sa->nic,
1278                                                tunnel_udp->udp_port,
1279                                                tunnel_proto);
1280                 break;
1281         case SFC_UDP_TUNNEL_DEL_PORT:
1282                 rc = efx_tunnel_config_udp_remove(sa->nic,
1283                                                   tunnel_udp->udp_port,
1284                                                   tunnel_proto);
1285                 break;
1286         default:
1287                 rc = EINVAL;
1288                 goto fail_bad_op;
1289         }
1290
1291         if (rc != 0)
1292                 goto fail_op;
1293
1294         if (sa->state == SFC_ADAPTER_STARTED) {
1295                 rc = efx_tunnel_reconfigure(sa->nic);
1296                 if (rc == EAGAIN) {
1297                         /*
1298                          * Configuration is accepted by FW and MC reboot
1299                          * is initiated to apply the changes. MC reboot
1300                          * will be handled in a usual way (MC reboot
1301                          * event on management event queue and adapter
1302                          * restart).
1303                          */
1304                         rc = 0;
1305                 } else if (rc != 0) {
1306                         goto fail_reconfigure;
1307                 }
1308         }
1309
1310         sfc_adapter_unlock(sa);
1311         return 0;
1312
1313 fail_reconfigure:
1314         /* Remove/restore entry since the change makes the trouble */
1315         switch (op) {
1316         case SFC_UDP_TUNNEL_ADD_PORT:
1317                 (void)efx_tunnel_config_udp_remove(sa->nic,
1318                                                    tunnel_udp->udp_port,
1319                                                    tunnel_proto);
1320                 break;
1321         case SFC_UDP_TUNNEL_DEL_PORT:
1322                 (void)efx_tunnel_config_udp_add(sa->nic,
1323                                                 tunnel_udp->udp_port,
1324                                                 tunnel_proto);
1325                 break;
1326         }
1327
1328 fail_op:
1329 fail_bad_op:
1330         sfc_adapter_unlock(sa);
1331
1332 fail_bad_proto:
1333         SFC_ASSERT(rc > 0);
1334         return -rc;
1335 }
1336
1337 static int
1338 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1339                             struct rte_eth_udp_tunnel *tunnel_udp)
1340 {
1341         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1342 }
1343
1344 static int
1345 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1346                             struct rte_eth_udp_tunnel *tunnel_udp)
1347 {
1348         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1349 }
1350
1351 static int
1352 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1353                           struct rte_eth_rss_conf *rss_conf)
1354 {
1355         struct sfc_adapter *sa = dev->data->dev_private;
1356         struct sfc_rss *rss = &sa->rss;
1357
1358         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1359                 return -ENOTSUP;
1360
1361         sfc_adapter_lock(sa);
1362
1363         /*
1364          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1365          * hence, conversion is done here to derive a correct set of ETH_RSS
1366          * flags which corresponds to the active EFX configuration stored
1367          * locally in 'sfc_adapter' and kept up-to-date
1368          */
1369         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(sa, rss->hash_types);
1370         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1371         if (rss_conf->rss_key != NULL)
1372                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1373
1374         sfc_adapter_unlock(sa);
1375
1376         return 0;
1377 }
1378
1379 static int
1380 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1381                         struct rte_eth_rss_conf *rss_conf)
1382 {
1383         struct sfc_adapter *sa = dev->data->dev_private;
1384         struct sfc_rss *rss = &sa->rss;
1385         struct sfc_port *port = &sa->port;
1386         unsigned int efx_hash_types;
1387         int rc = 0;
1388
1389         if (port->isolated)
1390                 return -ENOTSUP;
1391
1392         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1393                 sfc_err(sa, "RSS is not available");
1394                 return -ENOTSUP;
1395         }
1396
1397         if (rss->channels == 0) {
1398                 sfc_err(sa, "RSS is not configured");
1399                 return -EINVAL;
1400         }
1401
1402         if ((rss_conf->rss_key != NULL) &&
1403             (rss_conf->rss_key_len != sizeof(rss->key))) {
1404                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1405                         sizeof(rss->key));
1406                 return -EINVAL;
1407         }
1408
1409         sfc_adapter_lock(sa);
1410
1411         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1412         if (rc != 0)
1413                 goto fail_rx_hf_rte_to_efx;
1414
1415         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1416                                    rss->hash_alg, efx_hash_types, B_TRUE);
1417         if (rc != 0)
1418                 goto fail_scale_mode_set;
1419
1420         if (rss_conf->rss_key != NULL) {
1421                 if (sa->state == SFC_ADAPTER_STARTED) {
1422                         rc = efx_rx_scale_key_set(sa->nic,
1423                                                   EFX_RSS_CONTEXT_DEFAULT,
1424                                                   rss_conf->rss_key,
1425                                                   sizeof(rss->key));
1426                         if (rc != 0)
1427                                 goto fail_scale_key_set;
1428                 }
1429
1430                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1431         }
1432
1433         rss->hash_types = efx_hash_types;
1434
1435         sfc_adapter_unlock(sa);
1436
1437         return 0;
1438
1439 fail_scale_key_set:
1440         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1441                                   EFX_RX_HASHALG_TOEPLITZ,
1442                                   rss->hash_types, B_TRUE) != 0)
1443                 sfc_err(sa, "failed to restore RSS mode");
1444
1445 fail_scale_mode_set:
1446 fail_rx_hf_rte_to_efx:
1447         sfc_adapter_unlock(sa);
1448         return -rc;
1449 }
1450
1451 static int
1452 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1453                        struct rte_eth_rss_reta_entry64 *reta_conf,
1454                        uint16_t reta_size)
1455 {
1456         struct sfc_adapter *sa = dev->data->dev_private;
1457         struct sfc_rss *rss = &sa->rss;
1458         struct sfc_port *port = &sa->port;
1459         int entry;
1460
1461         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || port->isolated)
1462                 return -ENOTSUP;
1463
1464         if (rss->channels == 0)
1465                 return -EINVAL;
1466
1467         if (reta_size != EFX_RSS_TBL_SIZE)
1468                 return -EINVAL;
1469
1470         sfc_adapter_lock(sa);
1471
1472         for (entry = 0; entry < reta_size; entry++) {
1473                 int grp = entry / RTE_RETA_GROUP_SIZE;
1474                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1475
1476                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1477                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1478         }
1479
1480         sfc_adapter_unlock(sa);
1481
1482         return 0;
1483 }
1484
1485 static int
1486 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1487                         struct rte_eth_rss_reta_entry64 *reta_conf,
1488                         uint16_t reta_size)
1489 {
1490         struct sfc_adapter *sa = dev->data->dev_private;
1491         struct sfc_rss *rss = &sa->rss;
1492         struct sfc_port *port = &sa->port;
1493         unsigned int *rss_tbl_new;
1494         uint16_t entry;
1495         int rc = 0;
1496
1497
1498         if (port->isolated)
1499                 return -ENOTSUP;
1500
1501         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1502                 sfc_err(sa, "RSS is not available");
1503                 return -ENOTSUP;
1504         }
1505
1506         if (rss->channels == 0) {
1507                 sfc_err(sa, "RSS is not configured");
1508                 return -EINVAL;
1509         }
1510
1511         if (reta_size != EFX_RSS_TBL_SIZE) {
1512                 sfc_err(sa, "RETA size is wrong (should be %u)",
1513                         EFX_RSS_TBL_SIZE);
1514                 return -EINVAL;
1515         }
1516
1517         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1518         if (rss_tbl_new == NULL)
1519                 return -ENOMEM;
1520
1521         sfc_adapter_lock(sa);
1522
1523         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1524
1525         for (entry = 0; entry < reta_size; entry++) {
1526                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1527                 struct rte_eth_rss_reta_entry64 *grp;
1528
1529                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1530
1531                 if (grp->mask & (1ull << grp_idx)) {
1532                         if (grp->reta[grp_idx] >= rss->channels) {
1533                                 rc = EINVAL;
1534                                 goto bad_reta_entry;
1535                         }
1536                         rss_tbl_new[entry] = grp->reta[grp_idx];
1537                 }
1538         }
1539
1540         if (sa->state == SFC_ADAPTER_STARTED) {
1541                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1542                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1543                 if (rc != 0)
1544                         goto fail_scale_tbl_set;
1545         }
1546
1547         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1548
1549 fail_scale_tbl_set:
1550 bad_reta_entry:
1551         sfc_adapter_unlock(sa);
1552
1553         rte_free(rss_tbl_new);
1554
1555         SFC_ASSERT(rc >= 0);
1556         return -rc;
1557 }
1558
1559 static int
1560 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1561                     enum rte_filter_op filter_op,
1562                     void *arg)
1563 {
1564         struct sfc_adapter *sa = dev->data->dev_private;
1565         int rc = ENOTSUP;
1566
1567         sfc_log_init(sa, "entry");
1568
1569         switch (filter_type) {
1570         case RTE_ETH_FILTER_NONE:
1571                 sfc_err(sa, "Global filters configuration not supported");
1572                 break;
1573         case RTE_ETH_FILTER_MACVLAN:
1574                 sfc_err(sa, "MACVLAN filters not supported");
1575                 break;
1576         case RTE_ETH_FILTER_ETHERTYPE:
1577                 sfc_err(sa, "EtherType filters not supported");
1578                 break;
1579         case RTE_ETH_FILTER_FLEXIBLE:
1580                 sfc_err(sa, "Flexible filters not supported");
1581                 break;
1582         case RTE_ETH_FILTER_SYN:
1583                 sfc_err(sa, "SYN filters not supported");
1584                 break;
1585         case RTE_ETH_FILTER_NTUPLE:
1586                 sfc_err(sa, "NTUPLE filters not supported");
1587                 break;
1588         case RTE_ETH_FILTER_TUNNEL:
1589                 sfc_err(sa, "Tunnel filters not supported");
1590                 break;
1591         case RTE_ETH_FILTER_FDIR:
1592                 sfc_err(sa, "Flow Director filters not supported");
1593                 break;
1594         case RTE_ETH_FILTER_HASH:
1595                 sfc_err(sa, "Hash filters not supported");
1596                 break;
1597         case RTE_ETH_FILTER_GENERIC:
1598                 if (filter_op != RTE_ETH_FILTER_GET) {
1599                         rc = EINVAL;
1600                 } else {
1601                         *(const void **)arg = &sfc_flow_ops;
1602                         rc = 0;
1603                 }
1604                 break;
1605         default:
1606                 sfc_err(sa, "Unknown filter type %u", filter_type);
1607                 break;
1608         }
1609
1610         sfc_log_init(sa, "exit: %d", -rc);
1611         SFC_ASSERT(rc >= 0);
1612         return -rc;
1613 }
1614
1615 static int
1616 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1617 {
1618         struct sfc_adapter *sa = dev->data->dev_private;
1619
1620         /*
1621          * If Rx datapath does not provide callback to check mempool,
1622          * all pools are supported.
1623          */
1624         if (sa->dp_rx->pool_ops_supported == NULL)
1625                 return 1;
1626
1627         return sa->dp_rx->pool_ops_supported(pool);
1628 }
1629
1630 static const struct eth_dev_ops sfc_eth_dev_ops = {
1631         .dev_configure                  = sfc_dev_configure,
1632         .dev_start                      = sfc_dev_start,
1633         .dev_stop                       = sfc_dev_stop,
1634         .dev_set_link_up                = sfc_dev_set_link_up,
1635         .dev_set_link_down              = sfc_dev_set_link_down,
1636         .dev_close                      = sfc_dev_close,
1637         .promiscuous_enable             = sfc_dev_promisc_enable,
1638         .promiscuous_disable            = sfc_dev_promisc_disable,
1639         .allmulticast_enable            = sfc_dev_allmulti_enable,
1640         .allmulticast_disable           = sfc_dev_allmulti_disable,
1641         .link_update                    = sfc_dev_link_update,
1642         .stats_get                      = sfc_stats_get,
1643         .stats_reset                    = sfc_stats_reset,
1644         .xstats_get                     = sfc_xstats_get,
1645         .xstats_reset                   = sfc_stats_reset,
1646         .xstats_get_names               = sfc_xstats_get_names,
1647         .dev_infos_get                  = sfc_dev_infos_get,
1648         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1649         .mtu_set                        = sfc_dev_set_mtu,
1650         .rx_queue_start                 = sfc_rx_queue_start,
1651         .rx_queue_stop                  = sfc_rx_queue_stop,
1652         .tx_queue_start                 = sfc_tx_queue_start,
1653         .tx_queue_stop                  = sfc_tx_queue_stop,
1654         .rx_queue_setup                 = sfc_rx_queue_setup,
1655         .rx_queue_release               = sfc_rx_queue_release,
1656         .rx_queue_count                 = sfc_rx_queue_count,
1657         .rx_descriptor_done             = sfc_rx_descriptor_done,
1658         .rx_descriptor_status           = sfc_rx_descriptor_status,
1659         .tx_descriptor_status           = sfc_tx_descriptor_status,
1660         .tx_queue_setup                 = sfc_tx_queue_setup,
1661         .tx_queue_release               = sfc_tx_queue_release,
1662         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1663         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1664         .mac_addr_set                   = sfc_mac_addr_set,
1665         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1666         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1667         .reta_update                    = sfc_dev_rss_reta_update,
1668         .reta_query                     = sfc_dev_rss_reta_query,
1669         .rss_hash_update                = sfc_dev_rss_hash_update,
1670         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1671         .filter_ctrl                    = sfc_dev_filter_ctrl,
1672         .set_mc_addr_list               = sfc_set_mc_addr_list,
1673         .rxq_info_get                   = sfc_rx_queue_info_get,
1674         .txq_info_get                   = sfc_tx_queue_info_get,
1675         .fw_version_get                 = sfc_fw_version_get,
1676         .xstats_get_by_id               = sfc_xstats_get_by_id,
1677         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1678         .pool_ops_supported             = sfc_pool_ops_supported,
1679 };
1680
1681 /**
1682  * Duplicate a string in potentially shared memory required for
1683  * multi-process support.
1684  *
1685  * strdup() allocates from process-local heap/memory.
1686  */
1687 static char *
1688 sfc_strdup(const char *str)
1689 {
1690         size_t size;
1691         char *copy;
1692
1693         if (str == NULL)
1694                 return NULL;
1695
1696         size = strlen(str) + 1;
1697         copy = rte_malloc(__func__, size, 0);
1698         if (copy != NULL)
1699                 rte_memcpy(copy, str, size);
1700
1701         return copy;
1702 }
1703
1704 static int
1705 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1706 {
1707         struct sfc_adapter *sa = dev->data->dev_private;
1708         const efx_nic_cfg_t *encp;
1709         unsigned int avail_caps = 0;
1710         const char *rx_name = NULL;
1711         const char *tx_name = NULL;
1712         int rc;
1713
1714         switch (sa->family) {
1715         case EFX_FAMILY_HUNTINGTON:
1716         case EFX_FAMILY_MEDFORD:
1717         case EFX_FAMILY_MEDFORD2:
1718                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1719                 break;
1720         default:
1721                 break;
1722         }
1723
1724         encp = efx_nic_cfg_get(sa->nic);
1725         if (encp->enc_rx_es_super_buffer_supported)
1726                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1727
1728         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1729                                 sfc_kvarg_string_handler, &rx_name);
1730         if (rc != 0)
1731                 goto fail_kvarg_rx_datapath;
1732
1733         if (rx_name != NULL) {
1734                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1735                 if (sa->dp_rx == NULL) {
1736                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1737                         rc = ENOENT;
1738                         goto fail_dp_rx;
1739                 }
1740                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1741                         sfc_err(sa,
1742                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1743                                 rx_name);
1744                         rc = EINVAL;
1745                         goto fail_dp_rx_caps;
1746                 }
1747         } else {
1748                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1749                 if (sa->dp_rx == NULL) {
1750                         sfc_err(sa, "Rx datapath by caps %#x not found",
1751                                 avail_caps);
1752                         rc = ENOENT;
1753                         goto fail_dp_rx;
1754                 }
1755         }
1756
1757         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1758         if (sa->dp_rx_name == NULL) {
1759                 rc = ENOMEM;
1760                 goto fail_dp_rx_name;
1761         }
1762
1763         sfc_notice(sa, "use %s Rx datapath", sa->dp_rx_name);
1764
1765         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1766
1767         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1768                                 sfc_kvarg_string_handler, &tx_name);
1769         if (rc != 0)
1770                 goto fail_kvarg_tx_datapath;
1771
1772         if (tx_name != NULL) {
1773                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1774                 if (sa->dp_tx == NULL) {
1775                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1776                         rc = ENOENT;
1777                         goto fail_dp_tx;
1778                 }
1779                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1780                         sfc_err(sa,
1781                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1782                                 tx_name);
1783                         rc = EINVAL;
1784                         goto fail_dp_tx_caps;
1785                 }
1786         } else {
1787                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1788                 if (sa->dp_tx == NULL) {
1789                         sfc_err(sa, "Tx datapath by caps %#x not found",
1790                                 avail_caps);
1791                         rc = ENOENT;
1792                         goto fail_dp_tx;
1793                 }
1794         }
1795
1796         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1797         if (sa->dp_tx_name == NULL) {
1798                 rc = ENOMEM;
1799                 goto fail_dp_tx_name;
1800         }
1801
1802         sfc_notice(sa, "use %s Tx datapath", sa->dp_tx_name);
1803
1804         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1805
1806         dev->dev_ops = &sfc_eth_dev_ops;
1807
1808         return 0;
1809
1810 fail_dp_tx_name:
1811 fail_dp_tx_caps:
1812         sa->dp_tx = NULL;
1813
1814 fail_dp_tx:
1815 fail_kvarg_tx_datapath:
1816         rte_free(sa->dp_rx_name);
1817         sa->dp_rx_name = NULL;
1818
1819 fail_dp_rx_name:
1820 fail_dp_rx_caps:
1821         sa->dp_rx = NULL;
1822
1823 fail_dp_rx:
1824 fail_kvarg_rx_datapath:
1825         return rc;
1826 }
1827
1828 static void
1829 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1830 {
1831         struct sfc_adapter *sa = dev->data->dev_private;
1832
1833         dev->dev_ops = NULL;
1834         dev->rx_pkt_burst = NULL;
1835         dev->tx_pkt_burst = NULL;
1836
1837         rte_free(sa->dp_tx_name);
1838         sa->dp_tx_name = NULL;
1839         sa->dp_tx = NULL;
1840
1841         rte_free(sa->dp_rx_name);
1842         sa->dp_rx_name = NULL;
1843         sa->dp_rx = NULL;
1844 }
1845
1846 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1847         .rxq_info_get                   = sfc_rx_queue_info_get,
1848         .txq_info_get                   = sfc_tx_queue_info_get,
1849 };
1850
1851 static int
1852 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1853 {
1854         /*
1855          * Device private data has really many process-local pointers.
1856          * Below code should be extremely careful to use data located
1857          * in shared memory only.
1858          */
1859         struct sfc_adapter *sa = dev->data->dev_private;
1860         const struct sfc_dp_rx *dp_rx;
1861         const struct sfc_dp_tx *dp_tx;
1862         int rc;
1863
1864         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1865         if (dp_rx == NULL) {
1866                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1867                 rc = ENOENT;
1868                 goto fail_dp_rx;
1869         }
1870         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1871                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1872                         sa->dp_tx_name);
1873                 rc = EINVAL;
1874                 goto fail_dp_rx_multi_process;
1875         }
1876
1877         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1878         if (dp_tx == NULL) {
1879                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1880                 rc = ENOENT;
1881                 goto fail_dp_tx;
1882         }
1883         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1884                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1885                         sa->dp_tx_name);
1886                 rc = EINVAL;
1887                 goto fail_dp_tx_multi_process;
1888         }
1889
1890         dev->rx_pkt_burst = dp_rx->pkt_burst;
1891         dev->tx_pkt_burst = dp_tx->pkt_burst;
1892         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1893
1894         return 0;
1895
1896 fail_dp_tx_multi_process:
1897 fail_dp_tx:
1898 fail_dp_rx_multi_process:
1899 fail_dp_rx:
1900         return rc;
1901 }
1902
1903 static void
1904 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1905 {
1906         dev->dev_ops = NULL;
1907         dev->tx_pkt_burst = NULL;
1908         dev->rx_pkt_burst = NULL;
1909 }
1910
1911 static void
1912 sfc_register_dp(void)
1913 {
1914         /* Register once */
1915         if (TAILQ_EMPTY(&sfc_dp_head)) {
1916                 /* Prefer EF10 datapath */
1917                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
1918                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1919                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1920
1921                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1922                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1923                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1924         }
1925 }
1926
1927 static int
1928 sfc_eth_dev_init(struct rte_eth_dev *dev)
1929 {
1930         struct sfc_adapter *sa = dev->data->dev_private;
1931         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1932         int rc;
1933         const efx_nic_cfg_t *encp;
1934         const struct ether_addr *from;
1935
1936         sfc_register_dp();
1937
1938         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1939                 return -sfc_eth_dev_secondary_set_ops(dev);
1940
1941         /* Required for logging */
1942         sa->pci_addr = pci_dev->addr;
1943         sa->port_id = dev->data->port_id;
1944
1945         sa->eth_dev = dev;
1946
1947         /* Copy PCI device info to the dev->data */
1948         rte_eth_copy_pci_info(dev, pci_dev);
1949
1950         sa->logtype_main = sfc_register_logtype(sa, SFC_LOGTYPE_MAIN_STR,
1951                                                 RTE_LOG_NOTICE);
1952
1953         rc = sfc_kvargs_parse(sa);
1954         if (rc != 0)
1955                 goto fail_kvargs_parse;
1956
1957         sfc_log_init(sa, "entry");
1958
1959         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1960         if (dev->data->mac_addrs == NULL) {
1961                 rc = ENOMEM;
1962                 goto fail_mac_addrs;
1963         }
1964
1965         sfc_adapter_lock_init(sa);
1966         sfc_adapter_lock(sa);
1967
1968         sfc_log_init(sa, "probing");
1969         rc = sfc_probe(sa);
1970         if (rc != 0)
1971                 goto fail_probe;
1972
1973         sfc_log_init(sa, "set device ops");
1974         rc = sfc_eth_dev_set_ops(dev);
1975         if (rc != 0)
1976                 goto fail_set_ops;
1977
1978         sfc_log_init(sa, "attaching");
1979         rc = sfc_attach(sa);
1980         if (rc != 0)
1981                 goto fail_attach;
1982
1983         encp = efx_nic_cfg_get(sa->nic);
1984
1985         /*
1986          * The arguments are really reverse order in comparison to
1987          * Linux kernel. Copy from NIC config to Ethernet device data.
1988          */
1989         from = (const struct ether_addr *)(encp->enc_mac_addr);
1990         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1991
1992         sfc_adapter_unlock(sa);
1993
1994         sfc_log_init(sa, "done");
1995         return 0;
1996
1997 fail_attach:
1998         sfc_eth_dev_clear_ops(dev);
1999
2000 fail_set_ops:
2001         sfc_unprobe(sa);
2002
2003 fail_probe:
2004         sfc_adapter_unlock(sa);
2005         sfc_adapter_lock_fini(sa);
2006         rte_free(dev->data->mac_addrs);
2007         dev->data->mac_addrs = NULL;
2008
2009 fail_mac_addrs:
2010         sfc_kvargs_cleanup(sa);
2011
2012 fail_kvargs_parse:
2013         sfc_log_init(sa, "failed %d", rc);
2014         SFC_ASSERT(rc > 0);
2015         return -rc;
2016 }
2017
2018 static int
2019 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2020 {
2021         struct sfc_adapter *sa;
2022
2023         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2024                 sfc_eth_dev_secondary_clear_ops(dev);
2025                 return 0;
2026         }
2027
2028         sa = dev->data->dev_private;
2029         sfc_log_init(sa, "entry");
2030
2031         sfc_adapter_lock(sa);
2032
2033         sfc_eth_dev_clear_ops(dev);
2034
2035         sfc_detach(sa);
2036         sfc_unprobe(sa);
2037
2038         sfc_kvargs_cleanup(sa);
2039
2040         sfc_adapter_unlock(sa);
2041         sfc_adapter_lock_fini(sa);
2042
2043         sfc_log_init(sa, "done");
2044
2045         /* Required for logging, so cleanup last */
2046         sa->eth_dev = NULL;
2047         return 0;
2048 }
2049
2050 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2051         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2052         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2053         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2054         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2055         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2056         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2057         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2058         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2059         { .vendor_id = 0 /* sentinel */ }
2060 };
2061
2062 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2063         struct rte_pci_device *pci_dev)
2064 {
2065         return rte_eth_dev_pci_generic_probe(pci_dev,
2066                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2067 }
2068
2069 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2070 {
2071         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2072 }
2073
2074 static struct rte_pci_driver sfc_efx_pmd = {
2075         .id_table = pci_id_sfc_efx_map,
2076         .drv_flags =
2077                 RTE_PCI_DRV_INTR_LSC |
2078                 RTE_PCI_DRV_NEED_MAPPING,
2079         .probe = sfc_eth_dev_pci_probe,
2080         .remove = sfc_eth_dev_pci_remove,
2081 };
2082
2083 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2084 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2085 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2086 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2087         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2088         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2089         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2090         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2091         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2092         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2093
2094 RTE_INIT(sfc_driver_register_logtype)
2095 {
2096         int ret;
2097
2098         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2099                                                    RTE_LOG_NOTICE);
2100         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2101 }