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         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
  88         struct sfc_adapter *sa = dev->data->dev_private;
  89         struct sfc_rss *rss = &sa->rss;
  90         uint64_t txq_offloads_def = 0;
  91
  92         sfc_log_init(sa, "entry");
  93
  94         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
  95
  96         /* Autonegotiation may be disabled */
  97         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
  98         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
  99                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 100         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 101                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 102         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_25000FDX)
 103                 dev_info->speed_capa |= ETH_LINK_SPEED_25G;
 104         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 105                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 106         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_50000FDX)
 107                 dev_info->speed_capa |= ETH_LINK_SPEED_50G;
 108         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_100000FDX)
 109                 dev_info->speed_capa |= ETH_LINK_SPEED_100G;
 110
 111         dev_info->max_rx_queues = sa->rxq_max;
 112         dev_info->max_tx_queues = sa->txq_max;
 113
 114         /* By default packets are dropped if no descriptors are available */
 115         dev_info->default_rxconf.rx_drop_en = 1;
 116
 117         dev_info->rx_queue_offload_capa = sfc_rx_get_queue_offload_caps(sa);
 118
 119         /*
 120          * rx_offload_capa includes both device and queue offloads since
 121          * the latter may be requested on a per device basis which makes
 122          * sense when some offloads are needed to be set on all queues.
 123          */
 124         dev_info->rx_offload_capa = sfc_rx_get_dev_offload_caps(sa) |
 125                                     dev_info->rx_queue_offload_capa;
 126
 127         dev_info->tx_queue_offload_capa = sfc_tx_get_queue_offload_caps(sa);
 128
 129         /*
 130          * tx_offload_capa includes both device and queue offloads since
 131          * the latter may be requested on a per device basis which makes
 132          * sense when some offloads are needed to be set on all queues.
 133          */
 134         dev_info->tx_offload_capa = sfc_tx_get_dev_offload_caps(sa) |
 135                                     dev_info->tx_queue_offload_capa;
 136
 137         if (dev_info->tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 138                 txq_offloads_def |= DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 139
 140         dev_info->default_txconf.offloads |= txq_offloads_def;
 141
 142         if (rss->context_type != EFX_RX_SCALE_UNAVAILABLE) {
 143                 uint64_t rte_hf = 0;
 144                 unsigned int i;
 145
 146                 for (i = 0; i < rss->hf_map_nb_entries; ++i)
 147                         rte_hf |= rss->hf_map[i].rte;
 148
 149                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 150                 dev_info->hash_key_size = EFX_RSS_KEY_SIZE;
 151                 dev_info->flow_type_rss_offloads = rte_hf;
 152         }
 153
 154         /* Initialize to hardware limits */
 155         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 156         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 157         /* The RXQ hardware requires that the descriptor count is a power
 158          * of 2, but rx_desc_lim cannot properly describe that constraint.
 159          */
 160         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 161
 162         /* Initialize to hardware limits */
 163         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 164         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 165         /*
 166          * The TXQ hardware requires that the descriptor count is a power
 167          * of 2, but tx_desc_lim cannot properly describe that constraint
 168          */
 169         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 170
 171         if (sap->dp_rx->get_dev_info != NULL)
 172                 sap->dp_rx->get_dev_info(dev_info);
 173         if (sap->dp_tx->get_dev_info != NULL)
 174                 sap->dp_tx->get_dev_info(dev_info);
 175
 176         dev_info->dev_capa = RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
 177                              RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
 178 }
 179
 180 static const uint32_t *
 181 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 182 {
 183         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
 184         struct sfc_adapter *sa = dev->data->dev_private;
 185         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 186         uint32_t tunnel_encaps = encp->enc_tunnel_encapsulations_supported;
 187
 188         return sap->dp_rx->supported_ptypes_get(tunnel_encaps);
 189 }
 190
 191 static int
 192 sfc_dev_configure(struct rte_eth_dev *dev)
 193 {
 194         struct rte_eth_dev_data *dev_data = dev->data;
 195         struct sfc_adapter *sa = dev_data->dev_private;
 196         int rc;
 197
 198         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 199                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 200
 201         sfc_adapter_lock(sa);
 202         switch (sa->state) {
 203         case SFC_ADAPTER_CONFIGURED:
 204                 /* FALLTHROUGH */
 205         case SFC_ADAPTER_INITIALIZED:
 206                 rc = sfc_configure(sa);
 207                 break;
 208         default:
 209                 sfc_err(sa, "unexpected adapter state %u to configure",
 210                         sa->state);
 211                 rc = EINVAL;
 212                 break;
 213         }
 214         sfc_adapter_unlock(sa);
 215
 216         sfc_log_init(sa, "done %d", rc);
 217         SFC_ASSERT(rc >= 0);
 218         return -rc;
 219 }
 220
 221 static int
 222 sfc_dev_start(struct rte_eth_dev *dev)
 223 {
 224         struct sfc_adapter *sa = dev->data->dev_private;
 225         int rc;
 226
 227         sfc_log_init(sa, "entry");
 228
 229         sfc_adapter_lock(sa);
 230         rc = sfc_start(sa);
 231         sfc_adapter_unlock(sa);
 232
 233         sfc_log_init(sa, "done %d", rc);
 234         SFC_ASSERT(rc >= 0);
 235         return -rc;
 236 }
 237
 238 static int
 239 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 240 {
 241         struct sfc_adapter *sa = dev->data->dev_private;
 242         struct rte_eth_link current_link;
 243         int ret;
 244
 245         sfc_log_init(sa, "entry");
 246
 247         if (sa->state != SFC_ADAPTER_STARTED) {
 248                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 249         } else if (wait_to_complete) {
 250                 efx_link_mode_t link_mode;
 251
 252                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 253                         link_mode = EFX_LINK_UNKNOWN;
 254                 sfc_port_link_mode_to_info(link_mode, &current_link);
 255
 256         } else {
 257                 sfc_ev_mgmt_qpoll(sa);
 258                 rte_eth_linkstatus_get(dev, &current_link);
 259         }
 260
 261         ret = rte_eth_linkstatus_set(dev, &current_link);
 262         if (ret == 0)
 263                 sfc_notice(sa, "Link status is %s",
 264                            current_link.link_status ? "UP" : "DOWN");
 265
 266         return ret;
 267 }
 268
 269 static void
 270 sfc_dev_stop(struct rte_eth_dev *dev)
 271 {
 272         struct sfc_adapter *sa = dev->data->dev_private;
 273
 274         sfc_log_init(sa, "entry");
 275
 276         sfc_adapter_lock(sa);
 277         sfc_stop(sa);
 278         sfc_adapter_unlock(sa);
 279
 280         sfc_log_init(sa, "done");
 281 }
 282
 283 static int
 284 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 285 {
 286         struct sfc_adapter *sa = dev->data->dev_private;
 287         int rc;
 288
 289         sfc_log_init(sa, "entry");
 290
 291         sfc_adapter_lock(sa);
 292         rc = sfc_start(sa);
 293         sfc_adapter_unlock(sa);
 294
 295         SFC_ASSERT(rc >= 0);
 296         return -rc;
 297 }
 298
 299 static int
 300 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 301 {
 302         struct sfc_adapter *sa = dev->data->dev_private;
 303
 304         sfc_log_init(sa, "entry");
 305
 306         sfc_adapter_lock(sa);
 307         sfc_stop(sa);
 308         sfc_adapter_unlock(sa);
 309
 310         return 0;
 311 }
 312
 313 static void
 314 sfc_dev_close(struct rte_eth_dev *dev)
 315 {
 316         struct sfc_adapter *sa = dev->data->dev_private;
 317
 318         sfc_log_init(sa, "entry");
 319
 320         sfc_adapter_lock(sa);
 321         switch (sa->state) {
 322         case SFC_ADAPTER_STARTED:
 323                 sfc_stop(sa);
 324                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 325                 /* FALLTHROUGH */
 326         case SFC_ADAPTER_CONFIGURED:
 327                 sfc_close(sa);
 328                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 329                 /* FALLTHROUGH */
 330         case SFC_ADAPTER_INITIALIZED:
 331                 break;
 332         default:
 333                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 334                 break;
 335         }
 336         sfc_adapter_unlock(sa);
 337
 338         sfc_log_init(sa, "done");
 339 }
 340
 341 static void
 342 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 343                    boolean_t enabled)
 344 {
 345         struct sfc_port *port;
 346         boolean_t *toggle;
 347         struct sfc_adapter *sa = dev->data->dev_private;
 348         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 349         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 350
 351         sfc_adapter_lock(sa);
 352
 353         port = &sa->port;
 354         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 355
 356         if (*toggle != enabled) {
 357                 *toggle = enabled;
 358
 359                 if (port->isolated) {
 360                         sfc_warn(sa, "isolated mode is active on the port");
 361                         sfc_warn(sa, "the change is to be applied on the next "
 362                                      "start provided that isolated mode is "
 363                                      "disabled prior the next start");
 364                 } else if ((sa->state == SFC_ADAPTER_STARTED) &&
 365                            (sfc_set_rx_mode(sa) != 0)) {
 366                         *toggle = !(enabled);
 367                         sfc_warn(sa, "Failed to %s %s mode",
 368                                  ((enabled) ? "enable" : "disable"), desc);
 369                 }
 370         }
 371
 372         sfc_adapter_unlock(sa);
 373 }
 374
 375 static void
 376 sfc_dev_promisc_enable(struct rte_eth_dev *dev)
 377 {
 378         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_TRUE);
 379 }
 380
 381 static void
 382 sfc_dev_promisc_disable(struct rte_eth_dev *dev)
 383 {
 384         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_PROMISC, B_FALSE);
 385 }
 386
 387 static void
 388 sfc_dev_allmulti_enable(struct rte_eth_dev *dev)
 389 {
 390         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_TRUE);
 391 }
 392
 393 static void
 394 sfc_dev_allmulti_disable(struct rte_eth_dev *dev)
 395 {
 396         sfc_dev_filter_set(dev, SFC_DEV_FILTER_MODE_ALLMULTI, B_FALSE);
 397 }
 398
 399 static int
 400 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 401                    uint16_t nb_rx_desc, unsigned int socket_id,
 402                    const struct rte_eth_rxconf *rx_conf,
 403                    struct rte_mempool *mb_pool)
 404 {
 405         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 406         struct sfc_adapter *sa = dev->data->dev_private;
 407         int rc;
 408
 409         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 410                      rx_queue_id, nb_rx_desc, socket_id);
 411
 412         sfc_adapter_lock(sa);
 413
 414         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 415                           rx_conf, mb_pool);
 416         if (rc != 0)
 417                 goto fail_rx_qinit;
 418
 419         dev->data->rx_queues[rx_queue_id] = sas->rxq_info[rx_queue_id].dp;
 420
 421         sfc_adapter_unlock(sa);
 422
 423         return 0;
 424
 425 fail_rx_qinit:
 426         sfc_adapter_unlock(sa);
 427         SFC_ASSERT(rc > 0);
 428         return -rc;
 429 }
 430
 431 static void
 432 sfc_rx_queue_release(void *queue)
 433 {
 434         struct sfc_dp_rxq *dp_rxq = queue;
 435         struct sfc_rxq *rxq;
 436         struct sfc_adapter *sa;
 437         unsigned int sw_index;
 438
 439         if (dp_rxq == NULL)
 440                 return;
 441
 442         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 443         sa = rxq->evq->sa;
 444         sfc_adapter_lock(sa);
 445
 446         sw_index = dp_rxq->dpq.queue_id;
 447
 448         sfc_log_init(sa, "RxQ=%u", sw_index);
 449
 450         sfc_rx_qfini(sa, sw_index);
 451
 452         sfc_adapter_unlock(sa);
 453 }
 454
 455 static int
 456 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 457                    uint16_t nb_tx_desc, unsigned int socket_id,
 458                    const struct rte_eth_txconf *tx_conf)
 459 {
 460         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
 461         struct sfc_adapter *sa = dev->data->dev_private;
 462         int rc;
 463
 464         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 465                      tx_queue_id, nb_tx_desc, socket_id);
 466
 467         sfc_adapter_lock(sa);
 468
 469         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 470         if (rc != 0)
 471                 goto fail_tx_qinit;
 472
 473         dev->data->tx_queues[tx_queue_id] = sas->txq_info[tx_queue_id].dp;
 474
 475         sfc_adapter_unlock(sa);
 476         return 0;
 477
 478 fail_tx_qinit:
 479         sfc_adapter_unlock(sa);
 480         SFC_ASSERT(rc > 0);
 481         return -rc;
 482 }
 483
 484 static void
 485 sfc_tx_queue_release(void *queue)
 486 {
 487         struct sfc_dp_txq *dp_txq = queue;
 488         struct sfc_txq *txq;
 489         unsigned int sw_index;
 490         struct sfc_adapter *sa;
 491
 492         if (dp_txq == NULL)
 493                 return;
 494
 495         txq = sfc_txq_by_dp_txq(dp_txq);
 496         sw_index = dp_txq->dpq.queue_id;
 497
 498         SFC_ASSERT(txq->evq != NULL);
 499         sa = txq->evq->sa;
 500
 501         sfc_log_init(sa, "TxQ = %u", sw_index);
 502
 503         sfc_adapter_lock(sa);
 504
 505         sfc_tx_qfini(sa, sw_index);
 506
 507         sfc_adapter_unlock(sa);
 508 }
 509
 510 /*
 511  * Some statistics are computed as A - B where A and B each increase
 512  * monotonically with some hardware counter(s) and the counters are read
 513  * asynchronously.
 514  *
 515  * If packet X is counted in A, but not counted in B yet, computed value is
 516  * greater than real.
 517  *
 518  * If packet X is not counted in A at the moment of reading the counter,
 519  * but counted in B at the moment of reading the counter, computed value
 520  * is less than real.
 521  *
 522  * However, counter which grows backward is worse evil than slightly wrong
 523  * value. So, let's try to guarantee that it never happens except may be
 524  * the case when the MAC stats are zeroed as a result of a NIC reset.
 525  */
 526 static void
 527 sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
 528 {
 529         if ((int64_t)(newval - *stat) > 0 || newval == 0)
 530                 *stat = newval;
 531 }
 532
 533 static int
 534 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 535 {
 536         struct sfc_adapter *sa = dev->data->dev_private;
 537         struct sfc_port *port = &sa->port;
 538         uint64_t *mac_stats;
 539         int ret;
 540
 541         rte_spinlock_lock(&port->mac_stats_lock);
 542
 543         ret = sfc_port_update_mac_stats(sa);
 544         if (ret != 0)
 545                 goto unlock;
 546
 547         mac_stats = port->mac_stats_buf;
 548
 549         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 550                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 551                 stats->ipackets =
 552                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 553                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 554                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 555                 stats->opackets =
 556                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 557                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 558                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 559                 stats->ibytes =
 560                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 561                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 562                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 563                 stats->obytes =
 564                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 565                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 566                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 567                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 568                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 569         } else {
 570                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 571                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 572                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 573                 /*
 574                  * Take into account stats which are whenever supported
 575                  * on EF10. If some stat is not supported by current
 576                  * firmware variant or HW revision, it is guaranteed
 577                  * to be zero in mac_stats.
 578                  */
 579                 stats->imissed =
 580                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 581                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 582                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 583                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 584                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 585                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 586                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 587                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 588                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 589                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 590                 stats->ierrors =
 591                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 592                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 593                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 594                 /* no oerrors counters supported on EF10 */
 595
 596                 /* Exclude missed, errors and pauses from Rx packets */
 597                 sfc_update_diff_stat(&port->ipackets,
 598                         mac_stats[EFX_MAC_RX_PKTS] -
 599                         mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
 600                         stats->imissed - stats->ierrors);
 601                 stats->ipackets = port->ipackets;
 602         }
 603
 604 unlock:
 605         rte_spinlock_unlock(&port->mac_stats_lock);
 606         SFC_ASSERT(ret >= 0);
 607         return -ret;
 608 }
 609
 610 static void
 611 sfc_stats_reset(struct rte_eth_dev *dev)
 612 {
 613         struct sfc_adapter *sa = dev->data->dev_private;
 614         struct sfc_port *port = &sa->port;
 615         int rc;
 616
 617         if (sa->state != SFC_ADAPTER_STARTED) {
 618                 /*
 619                  * The operation cannot be done if port is not started; it
 620                  * will be scheduled to be done during the next port start
 621                  */
 622                 port->mac_stats_reset_pending = B_TRUE;
 623                 return;
 624         }
 625
 626         rc = sfc_port_reset_mac_stats(sa);
 627         if (rc != 0)
 628                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 629 }
 630
 631 static int
 632 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 633                unsigned int xstats_count)
 634 {
 635         struct sfc_adapter *sa = dev->data->dev_private;
 636         struct sfc_port *port = &sa->port;
 637         uint64_t *mac_stats;
 638         int rc;
 639         unsigned int i;
 640         int nstats = 0;
 641
 642         rte_spinlock_lock(&port->mac_stats_lock);
 643
 644         rc = sfc_port_update_mac_stats(sa);
 645         if (rc != 0) {
 646                 SFC_ASSERT(rc > 0);
 647                 nstats = -rc;
 648                 goto unlock;
 649         }
 650
 651         mac_stats = port->mac_stats_buf;
 652
 653         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 654                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 655                         if (xstats != NULL && nstats < (int)xstats_count) {
 656                                 xstats[nstats].id = nstats;
 657                                 xstats[nstats].value = mac_stats[i];
 658                         }
 659                         nstats++;
 660                 }
 661         }
 662
 663 unlock:
 664         rte_spinlock_unlock(&port->mac_stats_lock);
 665
 666         return nstats;
 667 }
 668
 669 static int
 670 sfc_xstats_get_names(struct rte_eth_dev *dev,
 671                      struct rte_eth_xstat_name *xstats_names,
 672                      unsigned int xstats_count)
 673 {
 674         struct sfc_adapter *sa = dev->data->dev_private;
 675         struct sfc_port *port = &sa->port;
 676         unsigned int i;
 677         unsigned int nstats = 0;
 678
 679         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 680                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 681                         if (xstats_names != NULL && nstats < xstats_count)
 682                                 strlcpy(xstats_names[nstats].name,
 683                                         efx_mac_stat_name(sa->nic, i),
 684                                         sizeof(xstats_names[0].name));
 685                         nstats++;
 686                 }
 687         }
 688
 689         return nstats;
 690 }
 691
 692 static int
 693 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 694                      uint64_t *values, unsigned int n)
 695 {
 696         struct sfc_adapter *sa = dev->data->dev_private;
 697         struct sfc_port *port = &sa->port;
 698         uint64_t *mac_stats;
 699         unsigned int nb_supported = 0;
 700         unsigned int nb_written = 0;
 701         unsigned int i;
 702         int ret;
 703         int rc;
 704
 705         if (unlikely(values == NULL) ||
 706             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 707                 return port->mac_stats_nb_supported;
 708
 709         rte_spinlock_lock(&port->mac_stats_lock);
 710
 711         rc = sfc_port_update_mac_stats(sa);
 712         if (rc != 0) {
 713                 SFC_ASSERT(rc > 0);
 714                 ret = -rc;
 715                 goto unlock;
 716         }
 717
 718         mac_stats = port->mac_stats_buf;
 719
 720         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++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                         values[nb_written++] = mac_stats[i];
 726
 727                 ++nb_supported;
 728         }
 729
 730         ret = nb_written;
 731
 732 unlock:
 733         rte_spinlock_unlock(&port->mac_stats_lock);
 734
 735         return ret;
 736 }
 737
 738 static int
 739 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 740                            struct rte_eth_xstat_name *xstats_names,
 741                            const uint64_t *ids, unsigned int size)
 742 {
 743         struct sfc_adapter *sa = dev->data->dev_private;
 744         struct sfc_port *port = &sa->port;
 745         unsigned int nb_supported = 0;
 746         unsigned int nb_written = 0;
 747         unsigned int i;
 748
 749         if (unlikely(xstats_names == NULL) ||
 750             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 751                 return port->mac_stats_nb_supported;
 752
 753         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 754                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 755                         continue;
 756
 757                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 758                         char *name = xstats_names[nb_written++].name;
 759
 760                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 761                                 sizeof(xstats_names[0].name));
 762                 }
 763
 764                 ++nb_supported;
 765         }
 766
 767         return nb_written;
 768 }
 769
 770 static int
 771 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 772 {
 773         struct sfc_adapter *sa = dev->data->dev_private;
 774         unsigned int wanted_fc, link_fc;
 775
 776         memset(fc_conf, 0, sizeof(*fc_conf));
 777
 778         sfc_adapter_lock(sa);
 779
 780         if (sa->state == SFC_ADAPTER_STARTED)
 781                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 782         else
 783                 link_fc = sa->port.flow_ctrl;
 784
 785         switch (link_fc) {
 786         case 0:
 787                 fc_conf->mode = RTE_FC_NONE;
 788                 break;
 789         case EFX_FCNTL_RESPOND:
 790                 fc_conf->mode = RTE_FC_RX_PAUSE;
 791                 break;
 792         case EFX_FCNTL_GENERATE:
 793                 fc_conf->mode = RTE_FC_TX_PAUSE;
 794                 break;
 795         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 796                 fc_conf->mode = RTE_FC_FULL;
 797                 break;
 798         default:
 799                 sfc_err(sa, "%s: unexpected flow control value %#x",
 800                         __func__, link_fc);
 801         }
 802
 803         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 804
 805         sfc_adapter_unlock(sa);
 806
 807         return 0;
 808 }
 809
 810 static int
 811 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 812 {
 813         struct sfc_adapter *sa = dev->data->dev_private;
 814         struct sfc_port *port = &sa->port;
 815         unsigned int fcntl;
 816         int rc;
 817
 818         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 819             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 820             fc_conf->mac_ctrl_frame_fwd != 0) {
 821                 sfc_err(sa, "unsupported flow control settings specified");
 822                 rc = EINVAL;
 823                 goto fail_inval;
 824         }
 825
 826         switch (fc_conf->mode) {
 827         case RTE_FC_NONE:
 828                 fcntl = 0;
 829                 break;
 830         case RTE_FC_RX_PAUSE:
 831                 fcntl = EFX_FCNTL_RESPOND;
 832                 break;
 833         case RTE_FC_TX_PAUSE:
 834                 fcntl = EFX_FCNTL_GENERATE;
 835                 break;
 836         case RTE_FC_FULL:
 837                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 838                 break;
 839         default:
 840                 rc = EINVAL;
 841                 goto fail_inval;
 842         }
 843
 844         sfc_adapter_lock(sa);
 845
 846         if (sa->state == SFC_ADAPTER_STARTED) {
 847                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 848                 if (rc != 0)
 849                         goto fail_mac_fcntl_set;
 850         }
 851
 852         port->flow_ctrl = fcntl;
 853         port->flow_ctrl_autoneg = fc_conf->autoneg;
 854
 855         sfc_adapter_unlock(sa);
 856
 857         return 0;
 858
 859 fail_mac_fcntl_set:
 860         sfc_adapter_unlock(sa);
 861 fail_inval:
 862         SFC_ASSERT(rc > 0);
 863         return -rc;
 864 }
 865
 866 static int
 867 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 868 {
 869         struct sfc_adapter *sa = dev->data->dev_private;
 870         size_t pdu = EFX_MAC_PDU(mtu);
 871         size_t old_pdu;
 872         int rc;
 873
 874         sfc_log_init(sa, "mtu=%u", mtu);
 875
 876         rc = EINVAL;
 877         if (pdu < EFX_MAC_PDU_MIN) {
 878                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 879                         (unsigned int)mtu, (unsigned int)pdu,
 880                         EFX_MAC_PDU_MIN);
 881                 goto fail_inval;
 882         }
 883         if (pdu > EFX_MAC_PDU_MAX) {
 884                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 885                         (unsigned int)mtu, (unsigned int)pdu,
 886                         EFX_MAC_PDU_MAX);
 887                 goto fail_inval;
 888         }
 889
 890         sfc_adapter_lock(sa);
 891
 892         if (pdu != sa->port.pdu) {
 893                 if (sa->state == SFC_ADAPTER_STARTED) {
 894                         sfc_stop(sa);
 895
 896                         old_pdu = sa->port.pdu;
 897                         sa->port.pdu = pdu;
 898                         rc = sfc_start(sa);
 899                         if (rc != 0)
 900                                 goto fail_start;
 901                 } else {
 902                         sa->port.pdu = pdu;
 903                 }
 904         }
 905
 906         /*
 907          * The driver does not use it, but other PMDs update jumbo frame
 908          * flag and max_rx_pkt_len when MTU is set.
 909          */
 910         if (mtu > ETHER_MAX_LEN) {
 911                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 912                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 913         }
 914
 915         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 916
 917         sfc_adapter_unlock(sa);
 918
 919         sfc_log_init(sa, "done");
 920         return 0;
 921
 922 fail_start:
 923         sa->port.pdu = old_pdu;
 924         if (sfc_start(sa) != 0)
 925                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 926                         "PDU max size - port is stopped",
 927                         (unsigned int)pdu, (unsigned int)old_pdu);
 928         sfc_adapter_unlock(sa);
 929
 930 fail_inval:
 931         sfc_log_init(sa, "failed %d", rc);
 932         SFC_ASSERT(rc > 0);
 933         return -rc;
 934 }
 935 static int
 936 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 937 {
 938         struct sfc_adapter *sa = dev->data->dev_private;
 939         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 940         struct sfc_port *port = &sa->port;
 941         struct ether_addr *old_addr = &dev->data->mac_addrs[0];
 942         int rc = 0;
 943
 944         sfc_adapter_lock(sa);
 945
 946         /*
 947          * Copy the address to the device private data so that
 948          * it could be recalled in the case of adapter restart.
 949          */
 950         ether_addr_copy(mac_addr, &port->default_mac_addr);
 951
 952         /*
 953          * Neither of the two following checks can return
 954          * an error. The new MAC address is preserved in
 955          * the device private data and can be activated
 956          * on the next port start if the user prevents
 957          * isolated mode from being enabled.
 958          */
 959         if (port->isolated) {
 960                 sfc_warn(sa, "isolated mode is active on the port");
 961                 sfc_warn(sa, "will not set MAC address");
 962                 goto unlock;
 963         }
 964
 965         if (sa->state != SFC_ADAPTER_STARTED) {
 966                 sfc_notice(sa, "the port is not started");
 967                 sfc_notice(sa, "the new MAC address will be set on port start");
 968
 969                 goto unlock;
 970         }
 971
 972         if (encp->enc_allow_set_mac_with_installed_filters) {
 973                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 974                 if (rc != 0) {
 975                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 976                         goto unlock;
 977                 }
 978
 979                 /*
 980                  * Changing the MAC address by means of MCDI request
 981                  * has no effect on received traffic, therefore
 982                  * we also need to update unicast filters
 983                  */
 984                 rc = sfc_set_rx_mode(sa);
 985                 if (rc != 0) {
 986                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 987                         /* Rollback the old address */
 988                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
 989                         (void)sfc_set_rx_mode(sa);
 990                 }
 991         } else {
 992                 sfc_warn(sa, "cannot set MAC address with filters installed");
 993                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 994                 sfc_warn(sa, "(some traffic may be dropped)");
 995
 996                 /*
 997                  * Since setting MAC address with filters installed is not
 998                  * allowed on the adapter, the new MAC address will be set
 999                  * by means of adapter restart. sfc_start() shall retrieve
1000                  * the new address from the device private data and set it.
1001                  */
1002                 sfc_stop(sa);
1003                 rc = sfc_start(sa);
1004                 if (rc != 0)
1005                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1006         }
1007
1008 unlock:
1009         if (rc != 0)
1010                 ether_addr_copy(old_addr, &port->default_mac_addr);
1011
1012         sfc_adapter_unlock(sa);
1013
1014         SFC_ASSERT(rc >= 0);
1015         return -rc;
1016 }
1017
1018
1019 static int
1020 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
1021                      uint32_t nb_mc_addr)
1022 {
1023         struct sfc_adapter *sa = dev->data->dev_private;
1024         struct sfc_port *port = &sa->port;
1025         uint8_t *mc_addrs = port->mcast_addrs;
1026         int rc;
1027         unsigned int i;
1028
1029         if (port->isolated) {
1030                 sfc_err(sa, "isolated mode is active on the port");
1031                 sfc_err(sa, "will not set multicast address list");
1032                 return -ENOTSUP;
1033         }
1034
1035         if (mc_addrs == NULL)
1036                 return -ENOBUFS;
1037
1038         if (nb_mc_addr > port->max_mcast_addrs) {
1039                 sfc_err(sa, "too many multicast addresses: %u > %u",
1040                          nb_mc_addr, port->max_mcast_addrs);
1041                 return -EINVAL;
1042         }
1043
1044         for (i = 0; i < nb_mc_addr; ++i) {
1045                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1046                                  EFX_MAC_ADDR_LEN);
1047                 mc_addrs += EFX_MAC_ADDR_LEN;
1048         }
1049
1050         port->nb_mcast_addrs = nb_mc_addr;
1051
1052         if (sa->state != SFC_ADAPTER_STARTED)
1053                 return 0;
1054
1055         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1056                                         port->nb_mcast_addrs);
1057         if (rc != 0)
1058                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1059
1060         SFC_ASSERT(rc >= 0);
1061         return -rc;
1062 }
1063
1064 /*
1065  * The function is used by the secondary process as well. It must not
1066  * use any process-local pointers from the adapter data.
1067  */
1068 static void
1069 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1070                       struct rte_eth_rxq_info *qinfo)
1071 {
1072         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1073         struct sfc_adapter *sa = dev->data->dev_private;
1074         struct sfc_rxq_info *rxq_info;
1075
1076         sfc_adapter_lock(sa);
1077
1078         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1079
1080         rxq_info = &sas->rxq_info[rx_queue_id];
1081
1082         qinfo->mp = rxq_info->refill_mb_pool;
1083         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1084         qinfo->conf.rx_drop_en = 1;
1085         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1086         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1087         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1088                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1089                 qinfo->scattered_rx = 1;
1090         }
1091         qinfo->nb_desc = rxq_info->entries;
1092
1093         sfc_adapter_unlock(sa);
1094 }
1095
1096 /*
1097  * The function is used by the secondary process as well. It must not
1098  * use any process-local pointers from the adapter data.
1099  */
1100 static void
1101 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1102                       struct rte_eth_txq_info *qinfo)
1103 {
1104         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1105         struct sfc_adapter *sa = dev->data->dev_private;
1106         struct sfc_txq_info *txq_info;
1107
1108         sfc_adapter_lock(sa);
1109
1110         SFC_ASSERT(tx_queue_id < sas->txq_count);
1111
1112         txq_info = &sas->txq_info[tx_queue_id];
1113
1114         memset(qinfo, 0, sizeof(*qinfo));
1115
1116         qinfo->conf.offloads = txq_info->offloads;
1117         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1118         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1119         qinfo->nb_desc = txq_info->entries;
1120
1121         sfc_adapter_unlock(sa);
1122 }
1123
1124 /*
1125  * The function is used by the secondary process as well. It must not
1126  * use any process-local pointers from the adapter data.
1127  */
1128 static uint32_t
1129 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1130 {
1131         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1132         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1133         struct sfc_rxq_info *rxq_info;
1134
1135         SFC_ASSERT(rx_queue_id < sas->rxq_count);
1136         rxq_info = &sas->rxq_info[rx_queue_id];
1137
1138         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1139                 return 0;
1140
1141         return sap->dp_rx->qdesc_npending(rxq_info->dp);
1142 }
1143
1144 /*
1145  * The function is used by the secondary process as well. It must not
1146  * use any process-local pointers from the adapter data.
1147  */
1148 static int
1149 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1150 {
1151         struct sfc_dp_rxq *dp_rxq = queue;
1152         const struct sfc_dp_rx *dp_rx;
1153
1154         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1155
1156         return offset < dp_rx->qdesc_npending(dp_rxq);
1157 }
1158
1159 /*
1160  * The function is used by the secondary process as well. It must not
1161  * use any process-local pointers from the adapter data.
1162  */
1163 static int
1164 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1165 {
1166         struct sfc_dp_rxq *dp_rxq = queue;
1167         const struct sfc_dp_rx *dp_rx;
1168
1169         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1170
1171         return dp_rx->qdesc_status(dp_rxq, offset);
1172 }
1173
1174 /*
1175  * The function is used by the secondary process as well. It must not
1176  * use any process-local pointers from the adapter data.
1177  */
1178 static int
1179 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1180 {
1181         struct sfc_dp_txq *dp_txq = queue;
1182         const struct sfc_dp_tx *dp_tx;
1183
1184         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1185
1186         return dp_tx->qdesc_status(dp_txq, offset);
1187 }
1188
1189 static int
1190 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1191 {
1192         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1193         struct sfc_adapter *sa = dev->data->dev_private;
1194         int rc;
1195
1196         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1197
1198         sfc_adapter_lock(sa);
1199
1200         rc = EINVAL;
1201         if (sa->state != SFC_ADAPTER_STARTED)
1202                 goto fail_not_started;
1203
1204         if (sas->rxq_info[rx_queue_id].state != SFC_RXQ_INITIALIZED)
1205                 goto fail_not_setup;
1206
1207         rc = sfc_rx_qstart(sa, rx_queue_id);
1208         if (rc != 0)
1209                 goto fail_rx_qstart;
1210
1211         sas->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1212
1213         sfc_adapter_unlock(sa);
1214
1215         return 0;
1216
1217 fail_rx_qstart:
1218 fail_not_setup:
1219 fail_not_started:
1220         sfc_adapter_unlock(sa);
1221         SFC_ASSERT(rc > 0);
1222         return -rc;
1223 }
1224
1225 static int
1226 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1227 {
1228         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1229         struct sfc_adapter *sa = dev->data->dev_private;
1230
1231         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1232
1233         sfc_adapter_lock(sa);
1234         sfc_rx_qstop(sa, rx_queue_id);
1235
1236         sas->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1237
1238         sfc_adapter_unlock(sa);
1239
1240         return 0;
1241 }
1242
1243 static int
1244 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1245 {
1246         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1247         struct sfc_adapter *sa = dev->data->dev_private;
1248         int rc;
1249
1250         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1251
1252         sfc_adapter_lock(sa);
1253
1254         rc = EINVAL;
1255         if (sa->state != SFC_ADAPTER_STARTED)
1256                 goto fail_not_started;
1257
1258         if (sas->txq_info[tx_queue_id].state != SFC_TXQ_INITIALIZED)
1259                 goto fail_not_setup;
1260
1261         rc = sfc_tx_qstart(sa, tx_queue_id);
1262         if (rc != 0)
1263                 goto fail_tx_qstart;
1264
1265         sas->txq_info[tx_queue_id].deferred_started = B_TRUE;
1266
1267         sfc_adapter_unlock(sa);
1268         return 0;
1269
1270 fail_tx_qstart:
1271
1272 fail_not_setup:
1273 fail_not_started:
1274         sfc_adapter_unlock(sa);
1275         SFC_ASSERT(rc > 0);
1276         return -rc;
1277 }
1278
1279 static int
1280 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1281 {
1282         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1283         struct sfc_adapter *sa = dev->data->dev_private;
1284
1285         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1286
1287         sfc_adapter_lock(sa);
1288
1289         sfc_tx_qstop(sa, tx_queue_id);
1290
1291         sas->txq_info[tx_queue_id].deferred_started = B_FALSE;
1292
1293         sfc_adapter_unlock(sa);
1294         return 0;
1295 }
1296
1297 static efx_tunnel_protocol_t
1298 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1299 {
1300         switch (rte_type) {
1301         case RTE_TUNNEL_TYPE_VXLAN:
1302                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1303         case RTE_TUNNEL_TYPE_GENEVE:
1304                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1305         default:
1306                 return EFX_TUNNEL_NPROTOS;
1307         }
1308 }
1309
1310 enum sfc_udp_tunnel_op_e {
1311         SFC_UDP_TUNNEL_ADD_PORT,
1312         SFC_UDP_TUNNEL_DEL_PORT,
1313 };
1314
1315 static int
1316 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1317                       struct rte_eth_udp_tunnel *tunnel_udp,
1318                       enum sfc_udp_tunnel_op_e op)
1319 {
1320         struct sfc_adapter *sa = dev->data->dev_private;
1321         efx_tunnel_protocol_t tunnel_proto;
1322         int rc;
1323
1324         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1325                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1326                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1327                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1328
1329         tunnel_proto =
1330                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1331         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1332                 rc = ENOTSUP;
1333                 goto fail_bad_proto;
1334         }
1335
1336         sfc_adapter_lock(sa);
1337
1338         switch (op) {
1339         case SFC_UDP_TUNNEL_ADD_PORT:
1340                 rc = efx_tunnel_config_udp_add(sa->nic,
1341                                                tunnel_udp->udp_port,
1342                                                tunnel_proto);
1343                 break;
1344         case SFC_UDP_TUNNEL_DEL_PORT:
1345                 rc = efx_tunnel_config_udp_remove(sa->nic,
1346                                                   tunnel_udp->udp_port,
1347                                                   tunnel_proto);
1348                 break;
1349         default:
1350                 rc = EINVAL;
1351                 goto fail_bad_op;
1352         }
1353
1354         if (rc != 0)
1355                 goto fail_op;
1356
1357         if (sa->state == SFC_ADAPTER_STARTED) {
1358                 rc = efx_tunnel_reconfigure(sa->nic);
1359                 if (rc == EAGAIN) {
1360                         /*
1361                          * Configuration is accepted by FW and MC reboot
1362                          * is initiated to apply the changes. MC reboot
1363                          * will be handled in a usual way (MC reboot
1364                          * event on management event queue and adapter
1365                          * restart).
1366                          */
1367                         rc = 0;
1368                 } else if (rc != 0) {
1369                         goto fail_reconfigure;
1370                 }
1371         }
1372
1373         sfc_adapter_unlock(sa);
1374         return 0;
1375
1376 fail_reconfigure:
1377         /* Remove/restore entry since the change makes the trouble */
1378         switch (op) {
1379         case SFC_UDP_TUNNEL_ADD_PORT:
1380                 (void)efx_tunnel_config_udp_remove(sa->nic,
1381                                                    tunnel_udp->udp_port,
1382                                                    tunnel_proto);
1383                 break;
1384         case SFC_UDP_TUNNEL_DEL_PORT:
1385                 (void)efx_tunnel_config_udp_add(sa->nic,
1386                                                 tunnel_udp->udp_port,
1387                                                 tunnel_proto);
1388                 break;
1389         }
1390
1391 fail_op:
1392 fail_bad_op:
1393         sfc_adapter_unlock(sa);
1394
1395 fail_bad_proto:
1396         SFC_ASSERT(rc > 0);
1397         return -rc;
1398 }
1399
1400 static int
1401 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1402                             struct rte_eth_udp_tunnel *tunnel_udp)
1403 {
1404         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1405 }
1406
1407 static int
1408 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1409                             struct rte_eth_udp_tunnel *tunnel_udp)
1410 {
1411         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1412 }
1413
1414 /*
1415  * The function is used by the secondary process as well. It must not
1416  * use any process-local pointers from the adapter data.
1417  */
1418 static int
1419 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1420                           struct rte_eth_rss_conf *rss_conf)
1421 {
1422         struct sfc_adapter *sa = dev->data->dev_private;
1423         struct sfc_rss *rss = &sa->rss;
1424
1425         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1426                 return -ENOTSUP;
1427
1428         sfc_adapter_lock(sa);
1429
1430         /*
1431          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1432          * hence, conversion is done here to derive a correct set of ETH_RSS
1433          * flags which corresponds to the active EFX configuration stored
1434          * locally in 'sfc_adapter' and kept up-to-date
1435          */
1436         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(sa, rss->hash_types);
1437         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1438         if (rss_conf->rss_key != NULL)
1439                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1440
1441         sfc_adapter_unlock(sa);
1442
1443         return 0;
1444 }
1445
1446 static int
1447 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1448                         struct rte_eth_rss_conf *rss_conf)
1449 {
1450         struct sfc_adapter *sa = dev->data->dev_private;
1451         struct sfc_rss *rss = &sa->rss;
1452         struct sfc_port *port = &sa->port;
1453         unsigned int efx_hash_types;
1454         int rc = 0;
1455
1456         if (port->isolated)
1457                 return -ENOTSUP;
1458
1459         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1460                 sfc_err(sa, "RSS is not available");
1461                 return -ENOTSUP;
1462         }
1463
1464         if (rss->channels == 0) {
1465                 sfc_err(sa, "RSS is not configured");
1466                 return -EINVAL;
1467         }
1468
1469         if ((rss_conf->rss_key != NULL) &&
1470             (rss_conf->rss_key_len != sizeof(rss->key))) {
1471                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1472                         sizeof(rss->key));
1473                 return -EINVAL;
1474         }
1475
1476         sfc_adapter_lock(sa);
1477
1478         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1479         if (rc != 0)
1480                 goto fail_rx_hf_rte_to_efx;
1481
1482         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1483                                    rss->hash_alg, efx_hash_types, B_TRUE);
1484         if (rc != 0)
1485                 goto fail_scale_mode_set;
1486
1487         if (rss_conf->rss_key != NULL) {
1488                 if (sa->state == SFC_ADAPTER_STARTED) {
1489                         rc = efx_rx_scale_key_set(sa->nic,
1490                                                   EFX_RSS_CONTEXT_DEFAULT,
1491                                                   rss_conf->rss_key,
1492                                                   sizeof(rss->key));
1493                         if (rc != 0)
1494                                 goto fail_scale_key_set;
1495                 }
1496
1497                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1498         }
1499
1500         rss->hash_types = efx_hash_types;
1501
1502         sfc_adapter_unlock(sa);
1503
1504         return 0;
1505
1506 fail_scale_key_set:
1507         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1508                                   EFX_RX_HASHALG_TOEPLITZ,
1509                                   rss->hash_types, B_TRUE) != 0)
1510                 sfc_err(sa, "failed to restore RSS mode");
1511
1512 fail_scale_mode_set:
1513 fail_rx_hf_rte_to_efx:
1514         sfc_adapter_unlock(sa);
1515         return -rc;
1516 }
1517
1518 /*
1519  * The function is used by the secondary process as well. It must not
1520  * use any process-local pointers from the adapter data.
1521  */
1522 static int
1523 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1524                        struct rte_eth_rss_reta_entry64 *reta_conf,
1525                        uint16_t reta_size)
1526 {
1527         struct sfc_adapter *sa = dev->data->dev_private;
1528         struct sfc_rss *rss = &sa->rss;
1529         struct sfc_port *port = &sa->port;
1530         int entry;
1531
1532         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || port->isolated)
1533                 return -ENOTSUP;
1534
1535         if (rss->channels == 0)
1536                 return -EINVAL;
1537
1538         if (reta_size != EFX_RSS_TBL_SIZE)
1539                 return -EINVAL;
1540
1541         sfc_adapter_lock(sa);
1542
1543         for (entry = 0; entry < reta_size; entry++) {
1544                 int grp = entry / RTE_RETA_GROUP_SIZE;
1545                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1546
1547                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1548                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1549         }
1550
1551         sfc_adapter_unlock(sa);
1552
1553         return 0;
1554 }
1555
1556 static int
1557 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1558                         struct rte_eth_rss_reta_entry64 *reta_conf,
1559                         uint16_t reta_size)
1560 {
1561         struct sfc_adapter *sa = dev->data->dev_private;
1562         struct sfc_rss *rss = &sa->rss;
1563         struct sfc_port *port = &sa->port;
1564         unsigned int *rss_tbl_new;
1565         uint16_t entry;
1566         int rc = 0;
1567
1568
1569         if (port->isolated)
1570                 return -ENOTSUP;
1571
1572         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1573                 sfc_err(sa, "RSS is not available");
1574                 return -ENOTSUP;
1575         }
1576
1577         if (rss->channels == 0) {
1578                 sfc_err(sa, "RSS is not configured");
1579                 return -EINVAL;
1580         }
1581
1582         if (reta_size != EFX_RSS_TBL_SIZE) {
1583                 sfc_err(sa, "RETA size is wrong (should be %u)",
1584                         EFX_RSS_TBL_SIZE);
1585                 return -EINVAL;
1586         }
1587
1588         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1589         if (rss_tbl_new == NULL)
1590                 return -ENOMEM;
1591
1592         sfc_adapter_lock(sa);
1593
1594         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1595
1596         for (entry = 0; entry < reta_size; entry++) {
1597                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1598                 struct rte_eth_rss_reta_entry64 *grp;
1599
1600                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1601
1602                 if (grp->mask & (1ull << grp_idx)) {
1603                         if (grp->reta[grp_idx] >= rss->channels) {
1604                                 rc = EINVAL;
1605                                 goto bad_reta_entry;
1606                         }
1607                         rss_tbl_new[entry] = grp->reta[grp_idx];
1608                 }
1609         }
1610
1611         if (sa->state == SFC_ADAPTER_STARTED) {
1612                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1613                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1614                 if (rc != 0)
1615                         goto fail_scale_tbl_set;
1616         }
1617
1618         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1619
1620 fail_scale_tbl_set:
1621 bad_reta_entry:
1622         sfc_adapter_unlock(sa);
1623
1624         rte_free(rss_tbl_new);
1625
1626         SFC_ASSERT(rc >= 0);
1627         return -rc;
1628 }
1629
1630 static int
1631 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1632                     enum rte_filter_op filter_op,
1633                     void *arg)
1634 {
1635         struct sfc_adapter *sa = dev->data->dev_private;
1636         int rc = ENOTSUP;
1637
1638         sfc_log_init(sa, "entry");
1639
1640         switch (filter_type) {
1641         case RTE_ETH_FILTER_NONE:
1642                 sfc_err(sa, "Global filters configuration not supported");
1643                 break;
1644         case RTE_ETH_FILTER_MACVLAN:
1645                 sfc_err(sa, "MACVLAN filters not supported");
1646                 break;
1647         case RTE_ETH_FILTER_ETHERTYPE:
1648                 sfc_err(sa, "EtherType filters not supported");
1649                 break;
1650         case RTE_ETH_FILTER_FLEXIBLE:
1651                 sfc_err(sa, "Flexible filters not supported");
1652                 break;
1653         case RTE_ETH_FILTER_SYN:
1654                 sfc_err(sa, "SYN filters not supported");
1655                 break;
1656         case RTE_ETH_FILTER_NTUPLE:
1657                 sfc_err(sa, "NTUPLE filters not supported");
1658                 break;
1659         case RTE_ETH_FILTER_TUNNEL:
1660                 sfc_err(sa, "Tunnel filters not supported");
1661                 break;
1662         case RTE_ETH_FILTER_FDIR:
1663                 sfc_err(sa, "Flow Director filters not supported");
1664                 break;
1665         case RTE_ETH_FILTER_HASH:
1666                 sfc_err(sa, "Hash filters not supported");
1667                 break;
1668         case RTE_ETH_FILTER_GENERIC:
1669                 if (filter_op != RTE_ETH_FILTER_GET) {
1670                         rc = EINVAL;
1671                 } else {
1672                         *(const void **)arg = &sfc_flow_ops;
1673                         rc = 0;
1674                 }
1675                 break;
1676         default:
1677                 sfc_err(sa, "Unknown filter type %u", filter_type);
1678                 break;
1679         }
1680
1681         sfc_log_init(sa, "exit: %d", -rc);
1682         SFC_ASSERT(rc >= 0);
1683         return -rc;
1684 }
1685
1686 static int
1687 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1688 {
1689         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1690
1691         /*
1692          * If Rx datapath does not provide callback to check mempool,
1693          * all pools are supported.
1694          */
1695         if (sap->dp_rx->pool_ops_supported == NULL)
1696                 return 1;
1697
1698         return sap->dp_rx->pool_ops_supported(pool);
1699 }
1700
1701 static const struct eth_dev_ops sfc_eth_dev_ops = {
1702         .dev_configure                  = sfc_dev_configure,
1703         .dev_start                      = sfc_dev_start,
1704         .dev_stop                       = sfc_dev_stop,
1705         .dev_set_link_up                = sfc_dev_set_link_up,
1706         .dev_set_link_down              = sfc_dev_set_link_down,
1707         .dev_close                      = sfc_dev_close,
1708         .promiscuous_enable             = sfc_dev_promisc_enable,
1709         .promiscuous_disable            = sfc_dev_promisc_disable,
1710         .allmulticast_enable            = sfc_dev_allmulti_enable,
1711         .allmulticast_disable           = sfc_dev_allmulti_disable,
1712         .link_update                    = sfc_dev_link_update,
1713         .stats_get                      = sfc_stats_get,
1714         .stats_reset                    = sfc_stats_reset,
1715         .xstats_get                     = sfc_xstats_get,
1716         .xstats_reset                   = sfc_stats_reset,
1717         .xstats_get_names               = sfc_xstats_get_names,
1718         .dev_infos_get                  = sfc_dev_infos_get,
1719         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1720         .mtu_set                        = sfc_dev_set_mtu,
1721         .rx_queue_start                 = sfc_rx_queue_start,
1722         .rx_queue_stop                  = sfc_rx_queue_stop,
1723         .tx_queue_start                 = sfc_tx_queue_start,
1724         .tx_queue_stop                  = sfc_tx_queue_stop,
1725         .rx_queue_setup                 = sfc_rx_queue_setup,
1726         .rx_queue_release               = sfc_rx_queue_release,
1727         .rx_queue_count                 = sfc_rx_queue_count,
1728         .rx_descriptor_done             = sfc_rx_descriptor_done,
1729         .rx_descriptor_status           = sfc_rx_descriptor_status,
1730         .tx_descriptor_status           = sfc_tx_descriptor_status,
1731         .tx_queue_setup                 = sfc_tx_queue_setup,
1732         .tx_queue_release               = sfc_tx_queue_release,
1733         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1734         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1735         .mac_addr_set                   = sfc_mac_addr_set,
1736         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1737         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1738         .reta_update                    = sfc_dev_rss_reta_update,
1739         .reta_query                     = sfc_dev_rss_reta_query,
1740         .rss_hash_update                = sfc_dev_rss_hash_update,
1741         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1742         .filter_ctrl                    = sfc_dev_filter_ctrl,
1743         .set_mc_addr_list               = sfc_set_mc_addr_list,
1744         .rxq_info_get                   = sfc_rx_queue_info_get,
1745         .txq_info_get                   = sfc_tx_queue_info_get,
1746         .fw_version_get                 = sfc_fw_version_get,
1747         .xstats_get_by_id               = sfc_xstats_get_by_id,
1748         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1749         .pool_ops_supported             = sfc_pool_ops_supported,
1750 };
1751
1752 /**
1753  * Duplicate a string in potentially shared memory required for
1754  * multi-process support.
1755  *
1756  * strdup() allocates from process-local heap/memory.
1757  */
1758 static char *
1759 sfc_strdup(const char *str)
1760 {
1761         size_t size;
1762         char *copy;
1763
1764         if (str == NULL)
1765                 return NULL;
1766
1767         size = strlen(str) + 1;
1768         copy = rte_malloc(__func__, size, 0);
1769         if (copy != NULL)
1770                 rte_memcpy(copy, str, size);
1771
1772         return copy;
1773 }
1774
1775 static int
1776 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1777 {
1778         struct sfc_adapter *sa = dev->data->dev_private;
1779         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1780         const struct sfc_dp_rx *dp_rx;
1781         const struct sfc_dp_tx *dp_tx;
1782         const efx_nic_cfg_t *encp;
1783         unsigned int avail_caps = 0;
1784         const char *rx_name = NULL;
1785         const char *tx_name = NULL;
1786         int rc;
1787
1788         switch (sa->family) {
1789         case EFX_FAMILY_HUNTINGTON:
1790         case EFX_FAMILY_MEDFORD:
1791         case EFX_FAMILY_MEDFORD2:
1792                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1793                 break;
1794         default:
1795                 break;
1796         }
1797
1798         encp = efx_nic_cfg_get(sa->nic);
1799         if (encp->enc_rx_es_super_buffer_supported)
1800                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1801
1802         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1803                                 sfc_kvarg_string_handler, &rx_name);
1804         if (rc != 0)
1805                 goto fail_kvarg_rx_datapath;
1806
1807         if (rx_name != NULL) {
1808                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1809                 if (dp_rx == NULL) {
1810                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1811                         rc = ENOENT;
1812                         goto fail_dp_rx;
1813                 }
1814                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
1815                         sfc_err(sa,
1816                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1817                                 rx_name);
1818                         rc = EINVAL;
1819                         goto fail_dp_rx_caps;
1820                 }
1821         } else {
1822                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1823                 if (dp_rx == NULL) {
1824                         sfc_err(sa, "Rx datapath by caps %#x not found",
1825                                 avail_caps);
1826                         rc = ENOENT;
1827                         goto fail_dp_rx;
1828                 }
1829         }
1830
1831         sas->dp_rx_name = sfc_strdup(dp_rx->dp.name);
1832         if (sas->dp_rx_name == NULL) {
1833                 rc = ENOMEM;
1834                 goto fail_dp_rx_name;
1835         }
1836
1837         sfc_notice(sa, "use %s Rx datapath", sas->dp_rx_name);
1838
1839         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1840                                 sfc_kvarg_string_handler, &tx_name);
1841         if (rc != 0)
1842                 goto fail_kvarg_tx_datapath;
1843
1844         if (tx_name != NULL) {
1845                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1846                 if (dp_tx == NULL) {
1847                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1848                         rc = ENOENT;
1849                         goto fail_dp_tx;
1850                 }
1851                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
1852                         sfc_err(sa,
1853                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1854                                 tx_name);
1855                         rc = EINVAL;
1856                         goto fail_dp_tx_caps;
1857                 }
1858         } else {
1859                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1860                 if (dp_tx == NULL) {
1861                         sfc_err(sa, "Tx datapath by caps %#x not found",
1862                                 avail_caps);
1863                         rc = ENOENT;
1864                         goto fail_dp_tx;
1865                 }
1866         }
1867
1868         sas->dp_tx_name = sfc_strdup(dp_tx->dp.name);
1869         if (sas->dp_tx_name == NULL) {
1870                 rc = ENOMEM;
1871                 goto fail_dp_tx_name;
1872         }
1873
1874         sfc_notice(sa, "use %s Tx datapath", sas->dp_tx_name);
1875
1876         sa->priv.dp_rx = dp_rx;
1877         sa->priv.dp_tx = dp_tx;
1878
1879         dev->rx_pkt_burst = dp_rx->pkt_burst;
1880         dev->tx_pkt_burst = dp_tx->pkt_burst;
1881
1882         dev->dev_ops = &sfc_eth_dev_ops;
1883
1884         return 0;
1885
1886 fail_dp_tx_name:
1887 fail_dp_tx_caps:
1888 fail_dp_tx:
1889 fail_kvarg_tx_datapath:
1890         rte_free(sas->dp_rx_name);
1891         sas->dp_rx_name = NULL;
1892
1893 fail_dp_rx_name:
1894 fail_dp_rx_caps:
1895 fail_dp_rx:
1896 fail_kvarg_rx_datapath:
1897         return rc;
1898 }
1899
1900 static void
1901 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1902 {
1903         struct sfc_adapter *sa = dev->data->dev_private;
1904         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1905
1906         dev->dev_ops = NULL;
1907         dev->rx_pkt_burst = NULL;
1908         dev->tx_pkt_burst = NULL;
1909
1910         rte_free(sas->dp_tx_name);
1911         sas->dp_tx_name = NULL;
1912         sa->priv.dp_tx = NULL;
1913
1914         rte_free(sas->dp_rx_name);
1915         sas->dp_rx_name = NULL;
1916         sa->priv.dp_rx = NULL;
1917 }
1918
1919 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1920         .rx_queue_count                 = sfc_rx_queue_count,
1921         .rx_descriptor_done             = sfc_rx_descriptor_done,
1922         .rx_descriptor_status           = sfc_rx_descriptor_status,
1923         .tx_descriptor_status           = sfc_tx_descriptor_status,
1924         .reta_query                     = sfc_dev_rss_reta_query,
1925         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1926         .rxq_info_get                   = sfc_rx_queue_info_get,
1927         .txq_info_get                   = sfc_tx_queue_info_get,
1928 };
1929
1930 static int
1931 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
1932 {
1933         struct sfc_adapter_shared *sas = sfc_adapter_shared_by_eth_dev(dev);
1934         struct sfc_adapter_priv *sap;
1935         const struct sfc_dp_rx *dp_rx;
1936         const struct sfc_dp_tx *dp_tx;
1937         int rc;
1938
1939         /*
1940          * Allocate process private data from heap, since it should not
1941          * be located in shared memory allocated using rte_malloc() API.
1942          */
1943         sap = calloc(1, sizeof(*sap));
1944         if (sap == NULL) {
1945                 rc = ENOMEM;
1946                 goto fail_alloc_priv;
1947         }
1948
1949         sap->logtype_main = logtype_main;
1950
1951         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sas->dp_rx_name);
1952         if (dp_rx == NULL) {
1953                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
1954                         "cannot find %s Rx datapath", sas->dp_rx_name);
1955                 rc = ENOENT;
1956                 goto fail_dp_rx;
1957         }
1958         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1959                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
1960                         "%s Rx datapath does not support multi-process",
1961                         sas->dp_rx_name);
1962                 rc = EINVAL;
1963                 goto fail_dp_rx_multi_process;
1964         }
1965
1966         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sas->dp_tx_name);
1967         if (dp_tx == NULL) {
1968                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
1969                         "cannot find %s Tx datapath", sas->dp_tx_name);
1970                 rc = ENOENT;
1971                 goto fail_dp_tx;
1972         }
1973         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1974                 SFC_LOG(sas, RTE_LOG_ERR, logtype_main,
1975                         "%s Tx datapath does not support multi-process",
1976                         sas->dp_tx_name);
1977                 rc = EINVAL;
1978                 goto fail_dp_tx_multi_process;
1979         }
1980
1981         sap->dp_rx = dp_rx;
1982         sap->dp_tx = dp_tx;
1983
1984         dev->process_private = sap;
1985         dev->rx_pkt_burst = dp_rx->pkt_burst;
1986         dev->tx_pkt_burst = dp_tx->pkt_burst;
1987         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1988
1989         return 0;
1990
1991 fail_dp_tx_multi_process:
1992 fail_dp_tx:
1993 fail_dp_rx_multi_process:
1994 fail_dp_rx:
1995         free(sap);
1996
1997 fail_alloc_priv:
1998         return rc;
1999 }
2000
2001 static void
2002 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
2003 {
2004         free(dev->process_private);
2005         dev->process_private = NULL;
2006         dev->dev_ops = NULL;
2007         dev->tx_pkt_burst = NULL;
2008         dev->rx_pkt_burst = NULL;
2009 }
2010
2011 static void
2012 sfc_register_dp(void)
2013 {
2014         /* Register once */
2015         if (TAILQ_EMPTY(&sfc_dp_head)) {
2016                 /* Prefer EF10 datapath */
2017                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2018                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2019                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2020
2021                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2022                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2023                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2024         }
2025 }
2026
2027 static int
2028 sfc_eth_dev_init(struct rte_eth_dev *dev)
2029 {
2030         struct sfc_adapter *sa = dev->data->dev_private;
2031         struct sfc_adapter_shared *sas;
2032         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2033         uint32_t logtype_main;
2034         int rc;
2035         const efx_nic_cfg_t *encp;
2036         const struct ether_addr *from;
2037
2038         sfc_register_dp();
2039
2040         logtype_main = sfc_register_logtype(&pci_dev->addr,
2041                                             SFC_LOGTYPE_MAIN_STR,
2042                                             RTE_LOG_NOTICE);
2043
2044         sa->priv.shared = &sa->_shared;
2045         sas = sa->priv.shared;
2046
2047         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2048                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2049
2050         /*
2051          * sfc_adapter is a mixture of shared and process private data.
2052          * During transition period use it in both kinds. When the
2053          * driver becomes ready to separate it, sfc_adapter will become
2054          * primary process private only.
2055          */
2056         dev->process_private = sa;
2057
2058         /* Required for logging */
2059         sas->pci_addr = pci_dev->addr;
2060         sas->port_id = dev->data->port_id;
2061         sa->priv.logtype_main = logtype_main;
2062
2063         sa->eth_dev = dev;
2064
2065         /* Copy PCI device info to the dev->data */
2066         rte_eth_copy_pci_info(dev, pci_dev);
2067
2068         rc = sfc_kvargs_parse(sa);
2069         if (rc != 0)
2070                 goto fail_kvargs_parse;
2071
2072         sfc_log_init(sa, "entry");
2073
2074         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
2075         if (dev->data->mac_addrs == NULL) {
2076                 rc = ENOMEM;
2077                 goto fail_mac_addrs;
2078         }
2079
2080         sfc_adapter_lock_init(sa);
2081         sfc_adapter_lock(sa);
2082
2083         sfc_log_init(sa, "probing");
2084         rc = sfc_probe(sa);
2085         if (rc != 0)
2086                 goto fail_probe;
2087
2088         sfc_log_init(sa, "set device ops");
2089         rc = sfc_eth_dev_set_ops(dev);
2090         if (rc != 0)
2091                 goto fail_set_ops;
2092
2093         sfc_log_init(sa, "attaching");
2094         rc = sfc_attach(sa);
2095         if (rc != 0)
2096                 goto fail_attach;
2097
2098         encp = efx_nic_cfg_get(sa->nic);
2099
2100         /*
2101          * The arguments are really reverse order in comparison to
2102          * Linux kernel. Copy from NIC config to Ethernet device data.
2103          */
2104         from = (const struct ether_addr *)(encp->enc_mac_addr);
2105         ether_addr_copy(from, &dev->data->mac_addrs[0]);
2106
2107         sfc_adapter_unlock(sa);
2108
2109         sfc_log_init(sa, "done");
2110         return 0;
2111
2112 fail_attach:
2113         sfc_eth_dev_clear_ops(dev);
2114
2115 fail_set_ops:
2116         sfc_unprobe(sa);
2117
2118 fail_probe:
2119         sfc_adapter_unlock(sa);
2120         sfc_adapter_lock_fini(sa);
2121         rte_free(dev->data->mac_addrs);
2122         dev->data->mac_addrs = NULL;
2123
2124 fail_mac_addrs:
2125         sfc_kvargs_cleanup(sa);
2126
2127 fail_kvargs_parse:
2128         sfc_log_init(sa, "failed %d", rc);
2129         dev->process_private = NULL;
2130         SFC_ASSERT(rc > 0);
2131         return -rc;
2132 }
2133
2134 static int
2135 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2136 {
2137         struct sfc_adapter *sa;
2138
2139         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2140                 sfc_eth_dev_secondary_clear_ops(dev);
2141                 return 0;
2142         }
2143
2144         sa = dev->data->dev_private;
2145         sfc_log_init(sa, "entry");
2146
2147         sfc_adapter_lock(sa);
2148
2149         sfc_eth_dev_clear_ops(dev);
2150
2151         sfc_detach(sa);
2152         sfc_unprobe(sa);
2153
2154         sfc_kvargs_cleanup(sa);
2155
2156         sfc_adapter_unlock(sa);
2157         sfc_adapter_lock_fini(sa);
2158
2159         sfc_log_init(sa, "done");
2160
2161         /* Required for logging, so cleanup last */
2162         sa->eth_dev = NULL;
2163         return 0;
2164 }
2165
2166 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2167         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2168         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2169         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2170         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2171         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2172         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2173         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2174         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2175         { .vendor_id = 0 /* sentinel */ }
2176 };
2177
2178 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2179         struct rte_pci_device *pci_dev)
2180 {
2181         return rte_eth_dev_pci_generic_probe(pci_dev,
2182                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2183 }
2184
2185 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2186 {
2187         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2188 }
2189
2190 static struct rte_pci_driver sfc_efx_pmd = {
2191         .id_table = pci_id_sfc_efx_map,
2192         .drv_flags =
2193                 RTE_PCI_DRV_INTR_LSC |
2194                 RTE_PCI_DRV_NEED_MAPPING,
2195         .probe = sfc_eth_dev_pci_probe,
2196         .remove = sfc_eth_dev_pci_remove,
2197 };
2198
2199 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2200 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2201 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2202 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2203         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2204         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2205         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2206         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2207         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2208         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2209
2210 RTE_INIT(sfc_driver_register_logtype)
2211 {
2212         int ret;
2213
2214         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2215                                                    RTE_LOG_NOTICE);
2216         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2217 }