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