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 *sa = dev->data->dev_private;
 406         int rc;
 407
 408         sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u",
 409                      rx_queue_id, nb_rx_desc, socket_id);
 410
 411         sfc_adapter_lock(sa);
 412
 413         rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id,
 414                           rx_conf, mb_pool);
 415         if (rc != 0)
 416                 goto fail_rx_qinit;
 417
 418         dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].dp;
 419
 420         sfc_adapter_unlock(sa);
 421
 422         return 0;
 423
 424 fail_rx_qinit:
 425         sfc_adapter_unlock(sa);
 426         SFC_ASSERT(rc > 0);
 427         return -rc;
 428 }
 429
 430 static void
 431 sfc_rx_queue_release(void *queue)
 432 {
 433         struct sfc_dp_rxq *dp_rxq = queue;
 434         struct sfc_rxq *rxq;
 435         struct sfc_adapter *sa;
 436         unsigned int sw_index;
 437
 438         if (dp_rxq == NULL)
 439                 return;
 440
 441         rxq = sfc_rxq_by_dp_rxq(dp_rxq);
 442         sa = rxq->evq->sa;
 443         sfc_adapter_lock(sa);
 444
 445         sw_index = sfc_rxq_sw_index(rxq);
 446
 447         sfc_log_init(sa, "RxQ=%u", sw_index);
 448
 449         sfc_rx_qfini(sa, sw_index);
 450
 451         sfc_adapter_unlock(sa);
 452 }
 453
 454 static int
 455 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 456                    uint16_t nb_tx_desc, unsigned int socket_id,
 457                    const struct rte_eth_txconf *tx_conf)
 458 {
 459         struct sfc_adapter *sa = dev->data->dev_private;
 460         int rc;
 461
 462         sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u",
 463                      tx_queue_id, nb_tx_desc, socket_id);
 464
 465         sfc_adapter_lock(sa);
 466
 467         rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf);
 468         if (rc != 0)
 469                 goto fail_tx_qinit;
 470
 471         dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].dp;
 472
 473         sfc_adapter_unlock(sa);
 474         return 0;
 475
 476 fail_tx_qinit:
 477         sfc_adapter_unlock(sa);
 478         SFC_ASSERT(rc > 0);
 479         return -rc;
 480 }
 481
 482 static void
 483 sfc_tx_queue_release(void *queue)
 484 {
 485         struct sfc_dp_txq *dp_txq = queue;
 486         struct sfc_txq *txq;
 487         unsigned int sw_index;
 488         struct sfc_adapter *sa;
 489
 490         if (dp_txq == NULL)
 491                 return;
 492
 493         txq = sfc_txq_by_dp_txq(dp_txq);
 494         sw_index = sfc_txq_sw_index(txq);
 495
 496         SFC_ASSERT(txq->evq != NULL);
 497         sa = txq->evq->sa;
 498
 499         sfc_log_init(sa, "TxQ = %u", sw_index);
 500
 501         sfc_adapter_lock(sa);
 502
 503         sfc_tx_qfini(sa, sw_index);
 504
 505         sfc_adapter_unlock(sa);
 506 }
 507
 508 /*
 509  * Some statistics are computed as A - B where A and B each increase
 510  * monotonically with some hardware counter(s) and the counters are read
 511  * asynchronously.
 512  *
 513  * If packet X is counted in A, but not counted in B yet, computed value is
 514  * greater than real.
 515  *
 516  * If packet X is not counted in A at the moment of reading the counter,
 517  * but counted in B at the moment of reading the counter, computed value
 518  * is less than real.
 519  *
 520  * However, counter which grows backward is worse evil than slightly wrong
 521  * value. So, let's try to guarantee that it never happens except may be
 522  * the case when the MAC stats are zeroed as a result of a NIC reset.
 523  */
 524 static void
 525 sfc_update_diff_stat(uint64_t *stat, uint64_t newval)
 526 {
 527         if ((int64_t)(newval - *stat) > 0 || newval == 0)
 528                 *stat = newval;
 529 }
 530
 531 static int
 532 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 533 {
 534         struct sfc_adapter *sa = dev->data->dev_private;
 535         struct sfc_port *port = &sa->port;
 536         uint64_t *mac_stats;
 537         int ret;
 538
 539         rte_spinlock_lock(&port->mac_stats_lock);
 540
 541         ret = sfc_port_update_mac_stats(sa);
 542         if (ret != 0)
 543                 goto unlock;
 544
 545         mac_stats = port->mac_stats_buf;
 546
 547         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 548                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 549                 stats->ipackets =
 550                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 551                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 552                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 553                 stats->opackets =
 554                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 555                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 556                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 557                 stats->ibytes =
 558                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 559                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 560                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 561                 stats->obytes =
 562                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 563                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 564                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 565                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 566                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 567         } else {
 568                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 569                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 570                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 571                 /*
 572                  * Take into account stats which are whenever supported
 573                  * on EF10. If some stat is not supported by current
 574                  * firmware variant or HW revision, it is guaranteed
 575                  * to be zero in mac_stats.
 576                  */
 577                 stats->imissed =
 578                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 579                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 580                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 581                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 582                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 583                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 584                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 585                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 586                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 587                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 588                 stats->ierrors =
 589                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 590                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 591                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 592                 /* no oerrors counters supported on EF10 */
 593
 594                 /* Exclude missed, errors and pauses from Rx packets */
 595                 sfc_update_diff_stat(&port->ipackets,
 596                         mac_stats[EFX_MAC_RX_PKTS] -
 597                         mac_stats[EFX_MAC_RX_PAUSE_PKTS] -
 598                         stats->imissed - stats->ierrors);
 599                 stats->ipackets = port->ipackets;
 600         }
 601
 602 unlock:
 603         rte_spinlock_unlock(&port->mac_stats_lock);
 604         SFC_ASSERT(ret >= 0);
 605         return -ret;
 606 }
 607
 608 static void
 609 sfc_stats_reset(struct rte_eth_dev *dev)
 610 {
 611         struct sfc_adapter *sa = dev->data->dev_private;
 612         struct sfc_port *port = &sa->port;
 613         int rc;
 614
 615         if (sa->state != SFC_ADAPTER_STARTED) {
 616                 /*
 617                  * The operation cannot be done if port is not started; it
 618                  * will be scheduled to be done during the next port start
 619                  */
 620                 port->mac_stats_reset_pending = B_TRUE;
 621                 return;
 622         }
 623
 624         rc = sfc_port_reset_mac_stats(sa);
 625         if (rc != 0)
 626                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 627 }
 628
 629 static int
 630 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 631                unsigned int xstats_count)
 632 {
 633         struct sfc_adapter *sa = dev->data->dev_private;
 634         struct sfc_port *port = &sa->port;
 635         uint64_t *mac_stats;
 636         int rc;
 637         unsigned int i;
 638         int nstats = 0;
 639
 640         rte_spinlock_lock(&port->mac_stats_lock);
 641
 642         rc = sfc_port_update_mac_stats(sa);
 643         if (rc != 0) {
 644                 SFC_ASSERT(rc > 0);
 645                 nstats = -rc;
 646                 goto unlock;
 647         }
 648
 649         mac_stats = port->mac_stats_buf;
 650
 651         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 652                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 653                         if (xstats != NULL && nstats < (int)xstats_count) {
 654                                 xstats[nstats].id = nstats;
 655                                 xstats[nstats].value = mac_stats[i];
 656                         }
 657                         nstats++;
 658                 }
 659         }
 660
 661 unlock:
 662         rte_spinlock_unlock(&port->mac_stats_lock);
 663
 664         return nstats;
 665 }
 666
 667 static int
 668 sfc_xstats_get_names(struct rte_eth_dev *dev,
 669                      struct rte_eth_xstat_name *xstats_names,
 670                      unsigned int xstats_count)
 671 {
 672         struct sfc_adapter *sa = dev->data->dev_private;
 673         struct sfc_port *port = &sa->port;
 674         unsigned int i;
 675         unsigned int nstats = 0;
 676
 677         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 678                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 679                         if (xstats_names != NULL && nstats < xstats_count)
 680                                 strlcpy(xstats_names[nstats].name,
 681                                         efx_mac_stat_name(sa->nic, i),
 682                                         sizeof(xstats_names[0].name));
 683                         nstats++;
 684                 }
 685         }
 686
 687         return nstats;
 688 }
 689
 690 static int
 691 sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids,
 692                      uint64_t *values, unsigned int n)
 693 {
 694         struct sfc_adapter *sa = dev->data->dev_private;
 695         struct sfc_port *port = &sa->port;
 696         uint64_t *mac_stats;
 697         unsigned int nb_supported = 0;
 698         unsigned int nb_written = 0;
 699         unsigned int i;
 700         int ret;
 701         int rc;
 702
 703         if (unlikely(values == NULL) ||
 704             unlikely((ids == NULL) && (n < port->mac_stats_nb_supported)))
 705                 return port->mac_stats_nb_supported;
 706
 707         rte_spinlock_lock(&port->mac_stats_lock);
 708
 709         rc = sfc_port_update_mac_stats(sa);
 710         if (rc != 0) {
 711                 SFC_ASSERT(rc > 0);
 712                 ret = -rc;
 713                 goto unlock;
 714         }
 715
 716         mac_stats = port->mac_stats_buf;
 717
 718         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < n); ++i) {
 719                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 720                         continue;
 721
 722                 if ((ids == NULL) || (ids[nb_written] == nb_supported))
 723                         values[nb_written++] = mac_stats[i];
 724
 725                 ++nb_supported;
 726         }
 727
 728         ret = nb_written;
 729
 730 unlock:
 731         rte_spinlock_unlock(&port->mac_stats_lock);
 732
 733         return ret;
 734 }
 735
 736 static int
 737 sfc_xstats_get_names_by_id(struct rte_eth_dev *dev,
 738                            struct rte_eth_xstat_name *xstats_names,
 739                            const uint64_t *ids, unsigned int size)
 740 {
 741         struct sfc_adapter *sa = dev->data->dev_private;
 742         struct sfc_port *port = &sa->port;
 743         unsigned int nb_supported = 0;
 744         unsigned int nb_written = 0;
 745         unsigned int i;
 746
 747         if (unlikely(xstats_names == NULL) ||
 748             unlikely((ids == NULL) && (size < port->mac_stats_nb_supported)))
 749                 return port->mac_stats_nb_supported;
 750
 751         for (i = 0; (i < EFX_MAC_NSTATS) && (nb_written < size); ++i) {
 752                 if (!EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i))
 753                         continue;
 754
 755                 if ((ids == NULL) || (ids[nb_written] == nb_supported)) {
 756                         char *name = xstats_names[nb_written++].name;
 757
 758                         strlcpy(name, efx_mac_stat_name(sa->nic, i),
 759                                 sizeof(xstats_names[0].name));
 760                 }
 761
 762                 ++nb_supported;
 763         }
 764
 765         return nb_written;
 766 }
 767
 768 static int
 769 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 770 {
 771         struct sfc_adapter *sa = dev->data->dev_private;
 772         unsigned int wanted_fc, link_fc;
 773
 774         memset(fc_conf, 0, sizeof(*fc_conf));
 775
 776         sfc_adapter_lock(sa);
 777
 778         if (sa->state == SFC_ADAPTER_STARTED)
 779                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 780         else
 781                 link_fc = sa->port.flow_ctrl;
 782
 783         switch (link_fc) {
 784         case 0:
 785                 fc_conf->mode = RTE_FC_NONE;
 786                 break;
 787         case EFX_FCNTL_RESPOND:
 788                 fc_conf->mode = RTE_FC_RX_PAUSE;
 789                 break;
 790         case EFX_FCNTL_GENERATE:
 791                 fc_conf->mode = RTE_FC_TX_PAUSE;
 792                 break;
 793         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 794                 fc_conf->mode = RTE_FC_FULL;
 795                 break;
 796         default:
 797                 sfc_err(sa, "%s: unexpected flow control value %#x",
 798                         __func__, link_fc);
 799         }
 800
 801         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 802
 803         sfc_adapter_unlock(sa);
 804
 805         return 0;
 806 }
 807
 808 static int
 809 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 810 {
 811         struct sfc_adapter *sa = dev->data->dev_private;
 812         struct sfc_port *port = &sa->port;
 813         unsigned int fcntl;
 814         int rc;
 815
 816         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 817             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 818             fc_conf->mac_ctrl_frame_fwd != 0) {
 819                 sfc_err(sa, "unsupported flow control settings specified");
 820                 rc = EINVAL;
 821                 goto fail_inval;
 822         }
 823
 824         switch (fc_conf->mode) {
 825         case RTE_FC_NONE:
 826                 fcntl = 0;
 827                 break;
 828         case RTE_FC_RX_PAUSE:
 829                 fcntl = EFX_FCNTL_RESPOND;
 830                 break;
 831         case RTE_FC_TX_PAUSE:
 832                 fcntl = EFX_FCNTL_GENERATE;
 833                 break;
 834         case RTE_FC_FULL:
 835                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 836                 break;
 837         default:
 838                 rc = EINVAL;
 839                 goto fail_inval;
 840         }
 841
 842         sfc_adapter_lock(sa);
 843
 844         if (sa->state == SFC_ADAPTER_STARTED) {
 845                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 846                 if (rc != 0)
 847                         goto fail_mac_fcntl_set;
 848         }
 849
 850         port->flow_ctrl = fcntl;
 851         port->flow_ctrl_autoneg = fc_conf->autoneg;
 852
 853         sfc_adapter_unlock(sa);
 854
 855         return 0;
 856
 857 fail_mac_fcntl_set:
 858         sfc_adapter_unlock(sa);
 859 fail_inval:
 860         SFC_ASSERT(rc > 0);
 861         return -rc;
 862 }
 863
 864 static int
 865 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 866 {
 867         struct sfc_adapter *sa = dev->data->dev_private;
 868         size_t pdu = EFX_MAC_PDU(mtu);
 869         size_t old_pdu;
 870         int rc;
 871
 872         sfc_log_init(sa, "mtu=%u", mtu);
 873
 874         rc = EINVAL;
 875         if (pdu < EFX_MAC_PDU_MIN) {
 876                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 877                         (unsigned int)mtu, (unsigned int)pdu,
 878                         EFX_MAC_PDU_MIN);
 879                 goto fail_inval;
 880         }
 881         if (pdu > EFX_MAC_PDU_MAX) {
 882                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 883                         (unsigned int)mtu, (unsigned int)pdu,
 884                         EFX_MAC_PDU_MAX);
 885                 goto fail_inval;
 886         }
 887
 888         sfc_adapter_lock(sa);
 889
 890         if (pdu != sa->port.pdu) {
 891                 if (sa->state == SFC_ADAPTER_STARTED) {
 892                         sfc_stop(sa);
 893
 894                         old_pdu = sa->port.pdu;
 895                         sa->port.pdu = pdu;
 896                         rc = sfc_start(sa);
 897                         if (rc != 0)
 898                                 goto fail_start;
 899                 } else {
 900                         sa->port.pdu = pdu;
 901                 }
 902         }
 903
 904         /*
 905          * The driver does not use it, but other PMDs update jumbo frame
 906          * flag and max_rx_pkt_len when MTU is set.
 907          */
 908         if (mtu > ETHER_MAX_LEN) {
 909                 struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
 910                 rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 911         }
 912
 913         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 914
 915         sfc_adapter_unlock(sa);
 916
 917         sfc_log_init(sa, "done");
 918         return 0;
 919
 920 fail_start:
 921         sa->port.pdu = old_pdu;
 922         if (sfc_start(sa) != 0)
 923                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 924                         "PDU max size - port is stopped",
 925                         (unsigned int)pdu, (unsigned int)old_pdu);
 926         sfc_adapter_unlock(sa);
 927
 928 fail_inval:
 929         sfc_log_init(sa, "failed %d", rc);
 930         SFC_ASSERT(rc > 0);
 931         return -rc;
 932 }
 933 static int
 934 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 935 {
 936         struct sfc_adapter *sa = dev->data->dev_private;
 937         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 938         struct sfc_port *port = &sa->port;
 939         struct ether_addr *old_addr = &dev->data->mac_addrs[0];
 940         int rc = 0;
 941
 942         sfc_adapter_lock(sa);
 943
 944         /*
 945          * Copy the address to the device private data so that
 946          * it could be recalled in the case of adapter restart.
 947          */
 948         ether_addr_copy(mac_addr, &port->default_mac_addr);
 949
 950         /*
 951          * Neither of the two following checks can return
 952          * an error. The new MAC address is preserved in
 953          * the device private data and can be activated
 954          * on the next port start if the user prevents
 955          * isolated mode from being enabled.
 956          */
 957         if (port->isolated) {
 958                 sfc_warn(sa, "isolated mode is active on the port");
 959                 sfc_warn(sa, "will not set MAC address");
 960                 goto unlock;
 961         }
 962
 963         if (sa->state != SFC_ADAPTER_STARTED) {
 964                 sfc_notice(sa, "the port is not started");
 965                 sfc_notice(sa, "the new MAC address will be set on port start");
 966
 967                 goto unlock;
 968         }
 969
 970         if (encp->enc_allow_set_mac_with_installed_filters) {
 971                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 972                 if (rc != 0) {
 973                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 974                         goto unlock;
 975                 }
 976
 977                 /*
 978                  * Changing the MAC address by means of MCDI request
 979                  * has no effect on received traffic, therefore
 980                  * we also need to update unicast filters
 981                  */
 982                 rc = sfc_set_rx_mode(sa);
 983                 if (rc != 0) {
 984                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 985                         /* Rollback the old address */
 986                         (void)efx_mac_addr_set(sa->nic, old_addr->addr_bytes);
 987                         (void)sfc_set_rx_mode(sa);
 988                 }
 989         } else {
 990                 sfc_warn(sa, "cannot set MAC address with filters installed");
 991                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 992                 sfc_warn(sa, "(some traffic may be dropped)");
 993
 994                 /*
 995                  * Since setting MAC address with filters installed is not
 996                  * allowed on the adapter, the new MAC address will be set
 997                  * by means of adapter restart. sfc_start() shall retrieve
 998                  * the new address from the device private data and set it.
 999                  */
1000                 sfc_stop(sa);
1001                 rc = sfc_start(sa);
1002                 if (rc != 0)
1003                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
1004         }
1005
1006 unlock:
1007         if (rc != 0)
1008                 ether_addr_copy(old_addr, &port->default_mac_addr);
1009
1010         sfc_adapter_unlock(sa);
1011
1012         SFC_ASSERT(rc >= 0);
1013         return -rc;
1014 }
1015
1016
1017 static int
1018 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
1019                      uint32_t nb_mc_addr)
1020 {
1021         struct sfc_adapter *sa = dev->data->dev_private;
1022         struct sfc_port *port = &sa->port;
1023         uint8_t *mc_addrs = port->mcast_addrs;
1024         int rc;
1025         unsigned int i;
1026
1027         if (port->isolated) {
1028                 sfc_err(sa, "isolated mode is active on the port");
1029                 sfc_err(sa, "will not set multicast address list");
1030                 return -ENOTSUP;
1031         }
1032
1033         if (mc_addrs == NULL)
1034                 return -ENOBUFS;
1035
1036         if (nb_mc_addr > port->max_mcast_addrs) {
1037                 sfc_err(sa, "too many multicast addresses: %u > %u",
1038                          nb_mc_addr, port->max_mcast_addrs);
1039                 return -EINVAL;
1040         }
1041
1042         for (i = 0; i < nb_mc_addr; ++i) {
1043                 rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
1044                                  EFX_MAC_ADDR_LEN);
1045                 mc_addrs += EFX_MAC_ADDR_LEN;
1046         }
1047
1048         port->nb_mcast_addrs = nb_mc_addr;
1049
1050         if (sa->state != SFC_ADAPTER_STARTED)
1051                 return 0;
1052
1053         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
1054                                         port->nb_mcast_addrs);
1055         if (rc != 0)
1056                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
1057
1058         SFC_ASSERT(rc >= 0);
1059         return -rc;
1060 }
1061
1062 /*
1063  * The function is used by the secondary process as well. It must not
1064  * use any process-local pointers from the adapter data.
1065  */
1066 static void
1067 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
1068                       struct rte_eth_rxq_info *qinfo)
1069 {
1070         struct sfc_adapter *sa = dev->data->dev_private;
1071         struct sfc_rxq_info *rxq_info;
1072
1073         sfc_adapter_lock(sa);
1074
1075         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1076
1077         rxq_info = &sa->rxq_info[rx_queue_id];
1078
1079         qinfo->mp = rxq_info->refill_mb_pool;
1080         qinfo->conf.rx_free_thresh = rxq_info->refill_threshold;
1081         qinfo->conf.rx_drop_en = 1;
1082         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
1083         qinfo->conf.offloads = dev->data->dev_conf.rxmode.offloads;
1084         if (rxq_info->type_flags & EFX_RXQ_FLAG_SCATTER) {
1085                 qinfo->conf.offloads |= DEV_RX_OFFLOAD_SCATTER;
1086                 qinfo->scattered_rx = 1;
1087         }
1088         qinfo->nb_desc = rxq_info->entries;
1089
1090         sfc_adapter_unlock(sa);
1091 }
1092
1093 /*
1094  * The function is used by the secondary process as well. It must not
1095  * use any process-local pointers from the adapter data.
1096  */
1097 static void
1098 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
1099                       struct rte_eth_txq_info *qinfo)
1100 {
1101         struct sfc_adapter *sa = dev->data->dev_private;
1102         struct sfc_txq_info *txq_info;
1103
1104         sfc_adapter_lock(sa);
1105
1106         SFC_ASSERT(tx_queue_id < sa->txq_count);
1107
1108         txq_info = &sa->txq_info[tx_queue_id];
1109
1110         memset(qinfo, 0, sizeof(*qinfo));
1111
1112         qinfo->conf.offloads = txq_info->offloads;
1113         qinfo->conf.tx_free_thresh = txq_info->free_thresh;
1114         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
1115         qinfo->nb_desc = txq_info->entries;
1116
1117         sfc_adapter_unlock(sa);
1118 }
1119
1120 /*
1121  * The function is used by the secondary process as well. It must not
1122  * use any process-local pointers from the adapter data.
1123  */
1124 static uint32_t
1125 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1126 {
1127         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1128         struct sfc_adapter *sa = dev->data->dev_private;
1129         struct sfc_rxq_info *rxq_info;
1130
1131         SFC_ASSERT(rx_queue_id < sa->rxq_count);
1132         rxq_info = &sa->rxq_info[rx_queue_id];
1133
1134         if ((rxq_info->state & SFC_RXQ_STARTED) == 0)
1135                 return 0;
1136
1137         return sap->dp_rx->qdesc_npending(rxq_info->dp);
1138 }
1139
1140 /*
1141  * The function is used by the secondary process as well. It must not
1142  * use any process-local pointers from the adapter data.
1143  */
1144 static int
1145 sfc_rx_descriptor_done(void *queue, uint16_t offset)
1146 {
1147         struct sfc_dp_rxq *dp_rxq = queue;
1148         const struct sfc_dp_rx *dp_rx;
1149
1150         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1151
1152         return offset < dp_rx->qdesc_npending(dp_rxq);
1153 }
1154
1155 /*
1156  * The function is used by the secondary process as well. It must not
1157  * use any process-local pointers from the adapter data.
1158  */
1159 static int
1160 sfc_rx_descriptor_status(void *queue, uint16_t offset)
1161 {
1162         struct sfc_dp_rxq *dp_rxq = queue;
1163         const struct sfc_dp_rx *dp_rx;
1164
1165         dp_rx = sfc_dp_rx_by_dp_rxq(dp_rxq);
1166
1167         return dp_rx->qdesc_status(dp_rxq, offset);
1168 }
1169
1170 /*
1171  * The function is used by the secondary process as well. It must not
1172  * use any process-local pointers from the adapter data.
1173  */
1174 static int
1175 sfc_tx_descriptor_status(void *queue, uint16_t offset)
1176 {
1177         struct sfc_dp_txq *dp_txq = queue;
1178         const struct sfc_dp_tx *dp_tx;
1179
1180         dp_tx = sfc_dp_tx_by_dp_txq(dp_txq);
1181
1182         return dp_tx->qdesc_status(dp_txq, offset);
1183 }
1184
1185 static int
1186 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1187 {
1188         struct sfc_adapter *sa = dev->data->dev_private;
1189         int rc;
1190
1191         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1192
1193         sfc_adapter_lock(sa);
1194
1195         rc = EINVAL;
1196         if (sa->state != SFC_ADAPTER_STARTED)
1197                 goto fail_not_started;
1198
1199         if (sa->rxq_info[rx_queue_id].rxq == NULL)
1200                 goto fail_not_setup;
1201
1202         rc = sfc_rx_qstart(sa, rx_queue_id);
1203         if (rc != 0)
1204                 goto fail_rx_qstart;
1205
1206         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1207
1208         sfc_adapter_unlock(sa);
1209
1210         return 0;
1211
1212 fail_rx_qstart:
1213 fail_not_setup:
1214 fail_not_started:
1215         sfc_adapter_unlock(sa);
1216         SFC_ASSERT(rc > 0);
1217         return -rc;
1218 }
1219
1220 static int
1221 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1222 {
1223         struct sfc_adapter *sa = dev->data->dev_private;
1224
1225         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1226
1227         sfc_adapter_lock(sa);
1228         sfc_rx_qstop(sa, rx_queue_id);
1229
1230         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1231
1232         sfc_adapter_unlock(sa);
1233
1234         return 0;
1235 }
1236
1237 static int
1238 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1239 {
1240         struct sfc_adapter *sa = dev->data->dev_private;
1241         int rc;
1242
1243         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1244
1245         sfc_adapter_lock(sa);
1246
1247         rc = EINVAL;
1248         if (sa->state != SFC_ADAPTER_STARTED)
1249                 goto fail_not_started;
1250
1251         if (sa->txq_info[tx_queue_id].txq == NULL)
1252                 goto fail_not_setup;
1253
1254         rc = sfc_tx_qstart(sa, tx_queue_id);
1255         if (rc != 0)
1256                 goto fail_tx_qstart;
1257
1258         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1259
1260         sfc_adapter_unlock(sa);
1261         return 0;
1262
1263 fail_tx_qstart:
1264
1265 fail_not_setup:
1266 fail_not_started:
1267         sfc_adapter_unlock(sa);
1268         SFC_ASSERT(rc > 0);
1269         return -rc;
1270 }
1271
1272 static int
1273 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1274 {
1275         struct sfc_adapter *sa = dev->data->dev_private;
1276
1277         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1278
1279         sfc_adapter_lock(sa);
1280
1281         sfc_tx_qstop(sa, tx_queue_id);
1282
1283         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1284
1285         sfc_adapter_unlock(sa);
1286         return 0;
1287 }
1288
1289 static efx_tunnel_protocol_t
1290 sfc_tunnel_rte_type_to_efx_udp_proto(enum rte_eth_tunnel_type rte_type)
1291 {
1292         switch (rte_type) {
1293         case RTE_TUNNEL_TYPE_VXLAN:
1294                 return EFX_TUNNEL_PROTOCOL_VXLAN;
1295         case RTE_TUNNEL_TYPE_GENEVE:
1296                 return EFX_TUNNEL_PROTOCOL_GENEVE;
1297         default:
1298                 return EFX_TUNNEL_NPROTOS;
1299         }
1300 }
1301
1302 enum sfc_udp_tunnel_op_e {
1303         SFC_UDP_TUNNEL_ADD_PORT,
1304         SFC_UDP_TUNNEL_DEL_PORT,
1305 };
1306
1307 static int
1308 sfc_dev_udp_tunnel_op(struct rte_eth_dev *dev,
1309                       struct rte_eth_udp_tunnel *tunnel_udp,
1310                       enum sfc_udp_tunnel_op_e op)
1311 {
1312         struct sfc_adapter *sa = dev->data->dev_private;
1313         efx_tunnel_protocol_t tunnel_proto;
1314         int rc;
1315
1316         sfc_log_init(sa, "%s udp_port=%u prot_type=%u",
1317                      (op == SFC_UDP_TUNNEL_ADD_PORT) ? "add" :
1318                      (op == SFC_UDP_TUNNEL_DEL_PORT) ? "delete" : "unknown",
1319                      tunnel_udp->udp_port, tunnel_udp->prot_type);
1320
1321         tunnel_proto =
1322                 sfc_tunnel_rte_type_to_efx_udp_proto(tunnel_udp->prot_type);
1323         if (tunnel_proto >= EFX_TUNNEL_NPROTOS) {
1324                 rc = ENOTSUP;
1325                 goto fail_bad_proto;
1326         }
1327
1328         sfc_adapter_lock(sa);
1329
1330         switch (op) {
1331         case SFC_UDP_TUNNEL_ADD_PORT:
1332                 rc = efx_tunnel_config_udp_add(sa->nic,
1333                                                tunnel_udp->udp_port,
1334                                                tunnel_proto);
1335                 break;
1336         case SFC_UDP_TUNNEL_DEL_PORT:
1337                 rc = efx_tunnel_config_udp_remove(sa->nic,
1338                                                   tunnel_udp->udp_port,
1339                                                   tunnel_proto);
1340                 break;
1341         default:
1342                 rc = EINVAL;
1343                 goto fail_bad_op;
1344         }
1345
1346         if (rc != 0)
1347                 goto fail_op;
1348
1349         if (sa->state == SFC_ADAPTER_STARTED) {
1350                 rc = efx_tunnel_reconfigure(sa->nic);
1351                 if (rc == EAGAIN) {
1352                         /*
1353                          * Configuration is accepted by FW and MC reboot
1354                          * is initiated to apply the changes. MC reboot
1355                          * will be handled in a usual way (MC reboot
1356                          * event on management event queue and adapter
1357                          * restart).
1358                          */
1359                         rc = 0;
1360                 } else if (rc != 0) {
1361                         goto fail_reconfigure;
1362                 }
1363         }
1364
1365         sfc_adapter_unlock(sa);
1366         return 0;
1367
1368 fail_reconfigure:
1369         /* Remove/restore entry since the change makes the trouble */
1370         switch (op) {
1371         case SFC_UDP_TUNNEL_ADD_PORT:
1372                 (void)efx_tunnel_config_udp_remove(sa->nic,
1373                                                    tunnel_udp->udp_port,
1374                                                    tunnel_proto);
1375                 break;
1376         case SFC_UDP_TUNNEL_DEL_PORT:
1377                 (void)efx_tunnel_config_udp_add(sa->nic,
1378                                                 tunnel_udp->udp_port,
1379                                                 tunnel_proto);
1380                 break;
1381         }
1382
1383 fail_op:
1384 fail_bad_op:
1385         sfc_adapter_unlock(sa);
1386
1387 fail_bad_proto:
1388         SFC_ASSERT(rc > 0);
1389         return -rc;
1390 }
1391
1392 static int
1393 sfc_dev_udp_tunnel_port_add(struct rte_eth_dev *dev,
1394                             struct rte_eth_udp_tunnel *tunnel_udp)
1395 {
1396         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_ADD_PORT);
1397 }
1398
1399 static int
1400 sfc_dev_udp_tunnel_port_del(struct rte_eth_dev *dev,
1401                             struct rte_eth_udp_tunnel *tunnel_udp)
1402 {
1403         return sfc_dev_udp_tunnel_op(dev, tunnel_udp, SFC_UDP_TUNNEL_DEL_PORT);
1404 }
1405
1406 static int
1407 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1408                           struct rte_eth_rss_conf *rss_conf)
1409 {
1410         struct sfc_adapter *sa = dev->data->dev_private;
1411         struct sfc_rss *rss = &sa->rss;
1412
1413         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE)
1414                 return -ENOTSUP;
1415
1416         sfc_adapter_lock(sa);
1417
1418         /*
1419          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1420          * hence, conversion is done here to derive a correct set of ETH_RSS
1421          * flags which corresponds to the active EFX configuration stored
1422          * locally in 'sfc_adapter' and kept up-to-date
1423          */
1424         rss_conf->rss_hf = sfc_rx_hf_efx_to_rte(sa, rss->hash_types);
1425         rss_conf->rss_key_len = EFX_RSS_KEY_SIZE;
1426         if (rss_conf->rss_key != NULL)
1427                 rte_memcpy(rss_conf->rss_key, rss->key, EFX_RSS_KEY_SIZE);
1428
1429         sfc_adapter_unlock(sa);
1430
1431         return 0;
1432 }
1433
1434 static int
1435 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1436                         struct rte_eth_rss_conf *rss_conf)
1437 {
1438         struct sfc_adapter *sa = dev->data->dev_private;
1439         struct sfc_rss *rss = &sa->rss;
1440         struct sfc_port *port = &sa->port;
1441         unsigned int efx_hash_types;
1442         int rc = 0;
1443
1444         if (port->isolated)
1445                 return -ENOTSUP;
1446
1447         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1448                 sfc_err(sa, "RSS is not available");
1449                 return -ENOTSUP;
1450         }
1451
1452         if (rss->channels == 0) {
1453                 sfc_err(sa, "RSS is not configured");
1454                 return -EINVAL;
1455         }
1456
1457         if ((rss_conf->rss_key != NULL) &&
1458             (rss_conf->rss_key_len != sizeof(rss->key))) {
1459                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1460                         sizeof(rss->key));
1461                 return -EINVAL;
1462         }
1463
1464         sfc_adapter_lock(sa);
1465
1466         rc = sfc_rx_hf_rte_to_efx(sa, rss_conf->rss_hf, &efx_hash_types);
1467         if (rc != 0)
1468                 goto fail_rx_hf_rte_to_efx;
1469
1470         rc = efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1471                                    rss->hash_alg, efx_hash_types, B_TRUE);
1472         if (rc != 0)
1473                 goto fail_scale_mode_set;
1474
1475         if (rss_conf->rss_key != NULL) {
1476                 if (sa->state == SFC_ADAPTER_STARTED) {
1477                         rc = efx_rx_scale_key_set(sa->nic,
1478                                                   EFX_RSS_CONTEXT_DEFAULT,
1479                                                   rss_conf->rss_key,
1480                                                   sizeof(rss->key));
1481                         if (rc != 0)
1482                                 goto fail_scale_key_set;
1483                 }
1484
1485                 rte_memcpy(rss->key, rss_conf->rss_key, sizeof(rss->key));
1486         }
1487
1488         rss->hash_types = efx_hash_types;
1489
1490         sfc_adapter_unlock(sa);
1491
1492         return 0;
1493
1494 fail_scale_key_set:
1495         if (efx_rx_scale_mode_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1496                                   EFX_RX_HASHALG_TOEPLITZ,
1497                                   rss->hash_types, B_TRUE) != 0)
1498                 sfc_err(sa, "failed to restore RSS mode");
1499
1500 fail_scale_mode_set:
1501 fail_rx_hf_rte_to_efx:
1502         sfc_adapter_unlock(sa);
1503         return -rc;
1504 }
1505
1506 static int
1507 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1508                        struct rte_eth_rss_reta_entry64 *reta_conf,
1509                        uint16_t reta_size)
1510 {
1511         struct sfc_adapter *sa = dev->data->dev_private;
1512         struct sfc_rss *rss = &sa->rss;
1513         struct sfc_port *port = &sa->port;
1514         int entry;
1515
1516         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE || port->isolated)
1517                 return -ENOTSUP;
1518
1519         if (rss->channels == 0)
1520                 return -EINVAL;
1521
1522         if (reta_size != EFX_RSS_TBL_SIZE)
1523                 return -EINVAL;
1524
1525         sfc_adapter_lock(sa);
1526
1527         for (entry = 0; entry < reta_size; entry++) {
1528                 int grp = entry / RTE_RETA_GROUP_SIZE;
1529                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1530
1531                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1532                         reta_conf[grp].reta[grp_idx] = rss->tbl[entry];
1533         }
1534
1535         sfc_adapter_unlock(sa);
1536
1537         return 0;
1538 }
1539
1540 static int
1541 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1542                         struct rte_eth_rss_reta_entry64 *reta_conf,
1543                         uint16_t reta_size)
1544 {
1545         struct sfc_adapter *sa = dev->data->dev_private;
1546         struct sfc_rss *rss = &sa->rss;
1547         struct sfc_port *port = &sa->port;
1548         unsigned int *rss_tbl_new;
1549         uint16_t entry;
1550         int rc = 0;
1551
1552
1553         if (port->isolated)
1554                 return -ENOTSUP;
1555
1556         if (rss->context_type != EFX_RX_SCALE_EXCLUSIVE) {
1557                 sfc_err(sa, "RSS is not available");
1558                 return -ENOTSUP;
1559         }
1560
1561         if (rss->channels == 0) {
1562                 sfc_err(sa, "RSS is not configured");
1563                 return -EINVAL;
1564         }
1565
1566         if (reta_size != EFX_RSS_TBL_SIZE) {
1567                 sfc_err(sa, "RETA size is wrong (should be %u)",
1568                         EFX_RSS_TBL_SIZE);
1569                 return -EINVAL;
1570         }
1571
1572         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(rss->tbl), 0);
1573         if (rss_tbl_new == NULL)
1574                 return -ENOMEM;
1575
1576         sfc_adapter_lock(sa);
1577
1578         rte_memcpy(rss_tbl_new, rss->tbl, sizeof(rss->tbl));
1579
1580         for (entry = 0; entry < reta_size; entry++) {
1581                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1582                 struct rte_eth_rss_reta_entry64 *grp;
1583
1584                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1585
1586                 if (grp->mask & (1ull << grp_idx)) {
1587                         if (grp->reta[grp_idx] >= rss->channels) {
1588                                 rc = EINVAL;
1589                                 goto bad_reta_entry;
1590                         }
1591                         rss_tbl_new[entry] = grp->reta[grp_idx];
1592                 }
1593         }
1594
1595         if (sa->state == SFC_ADAPTER_STARTED) {
1596                 rc = efx_rx_scale_tbl_set(sa->nic, EFX_RSS_CONTEXT_DEFAULT,
1597                                           rss_tbl_new, EFX_RSS_TBL_SIZE);
1598                 if (rc != 0)
1599                         goto fail_scale_tbl_set;
1600         }
1601
1602         rte_memcpy(rss->tbl, rss_tbl_new, sizeof(rss->tbl));
1603
1604 fail_scale_tbl_set:
1605 bad_reta_entry:
1606         sfc_adapter_unlock(sa);
1607
1608         rte_free(rss_tbl_new);
1609
1610         SFC_ASSERT(rc >= 0);
1611         return -rc;
1612 }
1613
1614 static int
1615 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1616                     enum rte_filter_op filter_op,
1617                     void *arg)
1618 {
1619         struct sfc_adapter *sa = dev->data->dev_private;
1620         int rc = ENOTSUP;
1621
1622         sfc_log_init(sa, "entry");
1623
1624         switch (filter_type) {
1625         case RTE_ETH_FILTER_NONE:
1626                 sfc_err(sa, "Global filters configuration not supported");
1627                 break;
1628         case RTE_ETH_FILTER_MACVLAN:
1629                 sfc_err(sa, "MACVLAN filters not supported");
1630                 break;
1631         case RTE_ETH_FILTER_ETHERTYPE:
1632                 sfc_err(sa, "EtherType filters not supported");
1633                 break;
1634         case RTE_ETH_FILTER_FLEXIBLE:
1635                 sfc_err(sa, "Flexible filters not supported");
1636                 break;
1637         case RTE_ETH_FILTER_SYN:
1638                 sfc_err(sa, "SYN filters not supported");
1639                 break;
1640         case RTE_ETH_FILTER_NTUPLE:
1641                 sfc_err(sa, "NTUPLE filters not supported");
1642                 break;
1643         case RTE_ETH_FILTER_TUNNEL:
1644                 sfc_err(sa, "Tunnel filters not supported");
1645                 break;
1646         case RTE_ETH_FILTER_FDIR:
1647                 sfc_err(sa, "Flow Director filters not supported");
1648                 break;
1649         case RTE_ETH_FILTER_HASH:
1650                 sfc_err(sa, "Hash filters not supported");
1651                 break;
1652         case RTE_ETH_FILTER_GENERIC:
1653                 if (filter_op != RTE_ETH_FILTER_GET) {
1654                         rc = EINVAL;
1655                 } else {
1656                         *(const void **)arg = &sfc_flow_ops;
1657                         rc = 0;
1658                 }
1659                 break;
1660         default:
1661                 sfc_err(sa, "Unknown filter type %u", filter_type);
1662                 break;
1663         }
1664
1665         sfc_log_init(sa, "exit: %d", -rc);
1666         SFC_ASSERT(rc >= 0);
1667         return -rc;
1668 }
1669
1670 static int
1671 sfc_pool_ops_supported(struct rte_eth_dev *dev, const char *pool)
1672 {
1673         const struct sfc_adapter_priv *sap = sfc_adapter_priv_by_eth_dev(dev);
1674
1675         /*
1676          * If Rx datapath does not provide callback to check mempool,
1677          * all pools are supported.
1678          */
1679         if (sap->dp_rx->pool_ops_supported == NULL)
1680                 return 1;
1681
1682         return sap->dp_rx->pool_ops_supported(pool);
1683 }
1684
1685 static const struct eth_dev_ops sfc_eth_dev_ops = {
1686         .dev_configure                  = sfc_dev_configure,
1687         .dev_start                      = sfc_dev_start,
1688         .dev_stop                       = sfc_dev_stop,
1689         .dev_set_link_up                = sfc_dev_set_link_up,
1690         .dev_set_link_down              = sfc_dev_set_link_down,
1691         .dev_close                      = sfc_dev_close,
1692         .promiscuous_enable             = sfc_dev_promisc_enable,
1693         .promiscuous_disable            = sfc_dev_promisc_disable,
1694         .allmulticast_enable            = sfc_dev_allmulti_enable,
1695         .allmulticast_disable           = sfc_dev_allmulti_disable,
1696         .link_update                    = sfc_dev_link_update,
1697         .stats_get                      = sfc_stats_get,
1698         .stats_reset                    = sfc_stats_reset,
1699         .xstats_get                     = sfc_xstats_get,
1700         .xstats_reset                   = sfc_stats_reset,
1701         .xstats_get_names               = sfc_xstats_get_names,
1702         .dev_infos_get                  = sfc_dev_infos_get,
1703         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1704         .mtu_set                        = sfc_dev_set_mtu,
1705         .rx_queue_start                 = sfc_rx_queue_start,
1706         .rx_queue_stop                  = sfc_rx_queue_stop,
1707         .tx_queue_start                 = sfc_tx_queue_start,
1708         .tx_queue_stop                  = sfc_tx_queue_stop,
1709         .rx_queue_setup                 = sfc_rx_queue_setup,
1710         .rx_queue_release               = sfc_rx_queue_release,
1711         .rx_queue_count                 = sfc_rx_queue_count,
1712         .rx_descriptor_done             = sfc_rx_descriptor_done,
1713         .rx_descriptor_status           = sfc_rx_descriptor_status,
1714         .tx_descriptor_status           = sfc_tx_descriptor_status,
1715         .tx_queue_setup                 = sfc_tx_queue_setup,
1716         .tx_queue_release               = sfc_tx_queue_release,
1717         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1718         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1719         .mac_addr_set                   = sfc_mac_addr_set,
1720         .udp_tunnel_port_add            = sfc_dev_udp_tunnel_port_add,
1721         .udp_tunnel_port_del            = sfc_dev_udp_tunnel_port_del,
1722         .reta_update                    = sfc_dev_rss_reta_update,
1723         .reta_query                     = sfc_dev_rss_reta_query,
1724         .rss_hash_update                = sfc_dev_rss_hash_update,
1725         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1726         .filter_ctrl                    = sfc_dev_filter_ctrl,
1727         .set_mc_addr_list               = sfc_set_mc_addr_list,
1728         .rxq_info_get                   = sfc_rx_queue_info_get,
1729         .txq_info_get                   = sfc_tx_queue_info_get,
1730         .fw_version_get                 = sfc_fw_version_get,
1731         .xstats_get_by_id               = sfc_xstats_get_by_id,
1732         .xstats_get_names_by_id         = sfc_xstats_get_names_by_id,
1733         .pool_ops_supported             = sfc_pool_ops_supported,
1734 };
1735
1736 /**
1737  * Duplicate a string in potentially shared memory required for
1738  * multi-process support.
1739  *
1740  * strdup() allocates from process-local heap/memory.
1741  */
1742 static char *
1743 sfc_strdup(const char *str)
1744 {
1745         size_t size;
1746         char *copy;
1747
1748         if (str == NULL)
1749                 return NULL;
1750
1751         size = strlen(str) + 1;
1752         copy = rte_malloc(__func__, size, 0);
1753         if (copy != NULL)
1754                 rte_memcpy(copy, str, size);
1755
1756         return copy;
1757 }
1758
1759 static int
1760 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1761 {
1762         struct sfc_adapter *sa = dev->data->dev_private;
1763         const struct sfc_dp_rx *dp_rx;
1764         const struct sfc_dp_tx *dp_tx;
1765         const efx_nic_cfg_t *encp;
1766         unsigned int avail_caps = 0;
1767         const char *rx_name = NULL;
1768         const char *tx_name = NULL;
1769         int rc;
1770
1771         switch (sa->family) {
1772         case EFX_FAMILY_HUNTINGTON:
1773         case EFX_FAMILY_MEDFORD:
1774         case EFX_FAMILY_MEDFORD2:
1775                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1776                 break;
1777         default:
1778                 break;
1779         }
1780
1781         encp = efx_nic_cfg_get(sa->nic);
1782         if (encp->enc_rx_es_super_buffer_supported)
1783                 avail_caps |= SFC_DP_HW_FW_CAP_RX_ES_SUPER_BUFFER;
1784
1785         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1786                                 sfc_kvarg_string_handler, &rx_name);
1787         if (rc != 0)
1788                 goto fail_kvarg_rx_datapath;
1789
1790         if (rx_name != NULL) {
1791                 dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1792                 if (dp_rx == NULL) {
1793                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1794                         rc = ENOENT;
1795                         goto fail_dp_rx;
1796                 }
1797                 if (!sfc_dp_match_hw_fw_caps(&dp_rx->dp, avail_caps)) {
1798                         sfc_err(sa,
1799                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1800                                 rx_name);
1801                         rc = EINVAL;
1802                         goto fail_dp_rx_caps;
1803                 }
1804         } else {
1805                 dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1806                 if (dp_rx == NULL) {
1807                         sfc_err(sa, "Rx datapath by caps %#x not found",
1808                                 avail_caps);
1809                         rc = ENOENT;
1810                         goto fail_dp_rx;
1811                 }
1812         }
1813
1814         sa->dp_rx_name = sfc_strdup(dp_rx->dp.name);
1815         if (sa->dp_rx_name == NULL) {
1816                 rc = ENOMEM;
1817                 goto fail_dp_rx_name;
1818         }
1819
1820         sfc_notice(sa, "use %s Rx datapath", sa->dp_rx_name);
1821
1822         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1823                                 sfc_kvarg_string_handler, &tx_name);
1824         if (rc != 0)
1825                 goto fail_kvarg_tx_datapath;
1826
1827         if (tx_name != NULL) {
1828                 dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1829                 if (dp_tx == NULL) {
1830                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1831                         rc = ENOENT;
1832                         goto fail_dp_tx;
1833                 }
1834                 if (!sfc_dp_match_hw_fw_caps(&dp_tx->dp, avail_caps)) {
1835                         sfc_err(sa,
1836                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1837                                 tx_name);
1838                         rc = EINVAL;
1839                         goto fail_dp_tx_caps;
1840                 }
1841         } else {
1842                 dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1843                 if (dp_tx == NULL) {
1844                         sfc_err(sa, "Tx datapath by caps %#x not found",
1845                                 avail_caps);
1846                         rc = ENOENT;
1847                         goto fail_dp_tx;
1848                 }
1849         }
1850
1851         sa->dp_tx_name = sfc_strdup(dp_tx->dp.name);
1852         if (sa->dp_tx_name == NULL) {
1853                 rc = ENOMEM;
1854                 goto fail_dp_tx_name;
1855         }
1856
1857         sfc_notice(sa, "use %s Tx datapath", sa->dp_tx_name);
1858
1859         sa->priv.dp_rx = dp_rx;
1860         sa->priv.dp_tx = dp_tx;
1861
1862         dev->rx_pkt_burst = dp_rx->pkt_burst;
1863         dev->tx_pkt_burst = dp_tx->pkt_burst;
1864
1865         dev->dev_ops = &sfc_eth_dev_ops;
1866
1867         return 0;
1868
1869 fail_dp_tx_name:
1870 fail_dp_tx_caps:
1871 fail_dp_tx:
1872 fail_kvarg_tx_datapath:
1873         rte_free(sa->dp_rx_name);
1874         sa->dp_rx_name = NULL;
1875
1876 fail_dp_rx_name:
1877 fail_dp_rx_caps:
1878 fail_dp_rx:
1879 fail_kvarg_rx_datapath:
1880         return rc;
1881 }
1882
1883 static void
1884 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1885 {
1886         struct sfc_adapter *sa = dev->data->dev_private;
1887
1888         dev->dev_ops = NULL;
1889         dev->rx_pkt_burst = NULL;
1890         dev->tx_pkt_burst = NULL;
1891
1892         rte_free(sa->dp_tx_name);
1893         sa->dp_tx_name = NULL;
1894         sa->priv.dp_tx = NULL;
1895
1896         rte_free(sa->dp_rx_name);
1897         sa->dp_rx_name = NULL;
1898         sa->priv.dp_rx = NULL;
1899 }
1900
1901 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1902         .rx_queue_count                 = sfc_rx_queue_count,
1903         .rx_descriptor_done             = sfc_rx_descriptor_done,
1904         .rx_descriptor_status           = sfc_rx_descriptor_status,
1905         .tx_descriptor_status           = sfc_tx_descriptor_status,
1906         .rxq_info_get                   = sfc_rx_queue_info_get,
1907         .txq_info_get                   = sfc_tx_queue_info_get,
1908 };
1909
1910 static int
1911 sfc_eth_dev_secondary_init(struct rte_eth_dev *dev, uint32_t logtype_main)
1912 {
1913         /*
1914          * Device private data has really many process-local pointers.
1915          * Below code should be extremely careful to use data located
1916          * in shared memory only.
1917          */
1918         struct sfc_adapter *sa = dev->data->dev_private;
1919         struct sfc_adapter_priv *sap;
1920         const struct sfc_dp_rx *dp_rx;
1921         const struct sfc_dp_tx *dp_tx;
1922         int rc;
1923
1924         /*
1925          * Allocate process private data from heap, since it should not
1926          * be located in shared memory allocated using rte_malloc() API.
1927          */
1928         sap = calloc(1, sizeof(*sap));
1929         if (sap == NULL) {
1930                 rc = ENOMEM;
1931                 goto fail_alloc_priv;
1932         }
1933
1934         sap->logtype_main = logtype_main;
1935
1936         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1937         if (dp_rx == NULL) {
1938                 SFC_LOG(sa, RTE_LOG_ERR, logtype_main,
1939                         "cannot find %s Rx datapath", sa->dp_rx_name);
1940                 rc = ENOENT;
1941                 goto fail_dp_rx;
1942         }
1943         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1944                 SFC_LOG(sa, RTE_LOG_ERR, logtype_main,
1945                         "%s Rx datapath does not support multi-process",
1946                         sa->dp_rx_name);
1947                 rc = EINVAL;
1948                 goto fail_dp_rx_multi_process;
1949         }
1950
1951         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1952         if (dp_tx == NULL) {
1953                 SFC_LOG(sa, RTE_LOG_ERR, logtype_main,
1954                         "cannot find %s Tx datapath", sa->dp_tx_name);
1955                 rc = ENOENT;
1956                 goto fail_dp_tx;
1957         }
1958         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1959                 SFC_LOG(sa, RTE_LOG_ERR, logtype_main,
1960                         "%s Tx datapath does not support multi-process",
1961                         sa->dp_tx_name);
1962                 rc = EINVAL;
1963                 goto fail_dp_tx_multi_process;
1964         }
1965
1966         sap->dp_rx = dp_rx;
1967         sap->dp_tx = dp_tx;
1968
1969         dev->process_private = sap;
1970         dev->rx_pkt_burst = dp_rx->pkt_burst;
1971         dev->tx_pkt_burst = dp_tx->pkt_burst;
1972         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1973
1974         return 0;
1975
1976 fail_dp_tx_multi_process:
1977 fail_dp_tx:
1978 fail_dp_rx_multi_process:
1979 fail_dp_rx:
1980         free(sap);
1981
1982 fail_alloc_priv:
1983         return rc;
1984 }
1985
1986 static void
1987 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1988 {
1989         free(dev->process_private);
1990         dev->process_private = NULL;
1991         dev->dev_ops = NULL;
1992         dev->tx_pkt_burst = NULL;
1993         dev->rx_pkt_burst = NULL;
1994 }
1995
1996 static void
1997 sfc_register_dp(void)
1998 {
1999         /* Register once */
2000         if (TAILQ_EMPTY(&sfc_dp_head)) {
2001                 /* Prefer EF10 datapath */
2002                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_essb_rx.dp);
2003                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
2004                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
2005
2006                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
2007                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
2008                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
2009         }
2010 }
2011
2012 static int
2013 sfc_eth_dev_init(struct rte_eth_dev *dev)
2014 {
2015         struct sfc_adapter *sa = dev->data->dev_private;
2016         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
2017         uint32_t logtype_main;
2018         int rc;
2019         const efx_nic_cfg_t *encp;
2020         const struct ether_addr *from;
2021
2022         sfc_register_dp();
2023
2024         logtype_main = sfc_register_logtype(&pci_dev->addr,
2025                                             SFC_LOGTYPE_MAIN_STR,
2026                                             RTE_LOG_NOTICE);
2027
2028         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2029                 return -sfc_eth_dev_secondary_init(dev, logtype_main);
2030
2031         /*
2032          * sfc_adapter is a mixture of shared and process private data.
2033          * During transition period use it in both kinds. When the
2034          * driver becomes ready to separate it, sfc_adapter will become
2035          * primary process private only.
2036          */
2037         dev->process_private = sa;
2038
2039         /* Required for logging */
2040         sa->pci_addr = pci_dev->addr;
2041         sa->port_id = dev->data->port_id;
2042         sa->priv.logtype_main = logtype_main;
2043
2044         sa->eth_dev = dev;
2045
2046         /* Copy PCI device info to the dev->data */
2047         rte_eth_copy_pci_info(dev, pci_dev);
2048
2049         rc = sfc_kvargs_parse(sa);
2050         if (rc != 0)
2051                 goto fail_kvargs_parse;
2052
2053         sfc_log_init(sa, "entry");
2054
2055         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
2056         if (dev->data->mac_addrs == NULL) {
2057                 rc = ENOMEM;
2058                 goto fail_mac_addrs;
2059         }
2060
2061         sfc_adapter_lock_init(sa);
2062         sfc_adapter_lock(sa);
2063
2064         sfc_log_init(sa, "probing");
2065         rc = sfc_probe(sa);
2066         if (rc != 0)
2067                 goto fail_probe;
2068
2069         sfc_log_init(sa, "set device ops");
2070         rc = sfc_eth_dev_set_ops(dev);
2071         if (rc != 0)
2072                 goto fail_set_ops;
2073
2074         sfc_log_init(sa, "attaching");
2075         rc = sfc_attach(sa);
2076         if (rc != 0)
2077                 goto fail_attach;
2078
2079         encp = efx_nic_cfg_get(sa->nic);
2080
2081         /*
2082          * The arguments are really reverse order in comparison to
2083          * Linux kernel. Copy from NIC config to Ethernet device data.
2084          */
2085         from = (const struct ether_addr *)(encp->enc_mac_addr);
2086         ether_addr_copy(from, &dev->data->mac_addrs[0]);
2087
2088         sfc_adapter_unlock(sa);
2089
2090         sfc_log_init(sa, "done");
2091         return 0;
2092
2093 fail_attach:
2094         sfc_eth_dev_clear_ops(dev);
2095
2096 fail_set_ops:
2097         sfc_unprobe(sa);
2098
2099 fail_probe:
2100         sfc_adapter_unlock(sa);
2101         sfc_adapter_lock_fini(sa);
2102         rte_free(dev->data->mac_addrs);
2103         dev->data->mac_addrs = NULL;
2104
2105 fail_mac_addrs:
2106         sfc_kvargs_cleanup(sa);
2107
2108 fail_kvargs_parse:
2109         sfc_log_init(sa, "failed %d", rc);
2110         dev->process_private = NULL;
2111         SFC_ASSERT(rc > 0);
2112         return -rc;
2113 }
2114
2115 static int
2116 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
2117 {
2118         struct sfc_adapter *sa;
2119
2120         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
2121                 sfc_eth_dev_secondary_clear_ops(dev);
2122                 return 0;
2123         }
2124
2125         sa = dev->data->dev_private;
2126         sfc_log_init(sa, "entry");
2127
2128         sfc_adapter_lock(sa);
2129
2130         sfc_eth_dev_clear_ops(dev);
2131
2132         sfc_detach(sa);
2133         sfc_unprobe(sa);
2134
2135         sfc_kvargs_cleanup(sa);
2136
2137         sfc_adapter_unlock(sa);
2138         sfc_adapter_lock_fini(sa);
2139
2140         sfc_log_init(sa, "done");
2141
2142         /* Required for logging, so cleanup last */
2143         sa->eth_dev = NULL;
2144         return 0;
2145 }
2146
2147 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
2148         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
2149         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
2150         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
2151         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
2152         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
2153         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
2154         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2) },
2155         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD2_VF) },
2156         { .vendor_id = 0 /* sentinel */ }
2157 };
2158
2159 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
2160         struct rte_pci_device *pci_dev)
2161 {
2162         return rte_eth_dev_pci_generic_probe(pci_dev,
2163                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
2164 }
2165
2166 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
2167 {
2168         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
2169 }
2170
2171 static struct rte_pci_driver sfc_efx_pmd = {
2172         .id_table = pci_id_sfc_efx_map,
2173         .drv_flags =
2174                 RTE_PCI_DRV_INTR_LSC |
2175                 RTE_PCI_DRV_NEED_MAPPING,
2176         .probe = sfc_eth_dev_pci_probe,
2177         .remove = sfc_eth_dev_pci_remove,
2178 };
2179
2180 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
2181 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
2182 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
2183 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
2184         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
2185         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
2186         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
2187         SFC_KVARG_FW_VARIANT "=" SFC_KVARG_VALUES_FW_VARIANT " "
2188         SFC_KVARG_RXD_WAIT_TIMEOUT_NS "=<long> "
2189         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long>");
2190
2191 RTE_INIT(sfc_driver_register_logtype)
2192 {
2193         int ret;
2194
2195         ret = rte_log_register_type_and_pick_level(SFC_LOGTYPE_PREFIX "driver",
2196                                                    RTE_LOG_NOTICE);
2197         sfc_logtype_driver = (ret < 0) ? RTE_LOGTYPE_PMD : ret;
2198 }