drivers/net/sfc/sfc_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  * Copyright (c) 2016-2017 Solarflare Communications Inc.
   5  * All rights reserved.
   6  *
   7  * This software was jointly developed between OKTET Labs (under contract
   8  * for Solarflare) and Solarflare Communications, Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright notice,
  16  *    this list of conditions and the following disclaimer in the documentation
  17  *    and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  20  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  21  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  25  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  26  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  27  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  28  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  29  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <rte_dev.h>
  33 #include <rte_ethdev.h>
  34 #include <rte_ethdev_pci.h>
  35 #include <rte_pci.h>
  36 #include <rte_errno.h>
  37
  38 #include "efx.h"
  39
  40 #include "sfc.h"
  41 #include "sfc_debug.h"
  42 #include "sfc_log.h"
  43 #include "sfc_kvargs.h"
  44 #include "sfc_ev.h"
  45 #include "sfc_rx.h"
  46 #include "sfc_tx.h"
  47 #include "sfc_flow.h"
  48 #include "sfc_dp.h"
  49 #include "sfc_dp_rx.h"
  50
  51 static struct sfc_dp_list sfc_dp_head =
  52         TAILQ_HEAD_INITIALIZER(sfc_dp_head);
  53
  54 static int
  55 sfc_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size)
  56 {
  57         struct sfc_adapter *sa = dev->data->dev_private;
  58         efx_nic_fw_info_t enfi;
  59         int ret;
  60         int rc;
  61
  62         /*
  63          * Return value of the callback is likely supposed to be
  64          * equal to or greater than 0, nevertheless, if an error
  65          * occurs, it will be desirable to pass it to the caller
  66          */
  67         if ((fw_version == NULL) || (fw_size == 0))
  68                 return -EINVAL;
  69
  70         rc = efx_nic_get_fw_version(sa->nic, &enfi);
  71         if (rc != 0)
  72                 return -rc;
  73
  74         ret = snprintf(fw_version, fw_size,
  75                        "%" PRIu16 ".%" PRIu16 ".%" PRIu16 ".%" PRIu16,
  76                        enfi.enfi_mc_fw_version[0], enfi.enfi_mc_fw_version[1],
  77                        enfi.enfi_mc_fw_version[2], enfi.enfi_mc_fw_version[3]);
  78         if (ret < 0)
  79                 return ret;
  80
  81         if (enfi.enfi_dpcpu_fw_ids_valid) {
  82                 size_t dpcpu_fw_ids_offset = MIN(fw_size - 1, (size_t)ret);
  83                 int ret_extra;
  84
  85                 ret_extra = snprintf(fw_version + dpcpu_fw_ids_offset,
  86                                      fw_size - dpcpu_fw_ids_offset,
  87                                      " rx%" PRIx16 " tx%" PRIx16,
  88                                      enfi.enfi_rx_dpcpu_fw_id,
  89                                      enfi.enfi_tx_dpcpu_fw_id);
  90                 if (ret_extra < 0)
  91                         return ret_extra;
  92
  93                 ret += ret_extra;
  94         }
  95
  96         if (fw_size < (size_t)(++ret))
  97                 return ret;
  98         else
  99                 return 0;
 100 }
 101
 102 static void
 103 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 104 {
 105         struct sfc_adapter *sa = dev->data->dev_private;
 106         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 107
 108         sfc_log_init(sa, "entry");
 109
 110         dev_info->pci_dev = RTE_ETH_DEV_TO_PCI(dev);
 111         dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX;
 112
 113         /* Autonegotiation may be disabled */
 114         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 115         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX)
 116                 dev_info->speed_capa |= ETH_LINK_SPEED_1G;
 117         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX)
 118                 dev_info->speed_capa |= ETH_LINK_SPEED_10G;
 119         if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX)
 120                 dev_info->speed_capa |= ETH_LINK_SPEED_40G;
 121
 122         dev_info->max_rx_queues = sa->rxq_max;
 123         dev_info->max_tx_queues = sa->txq_max;
 124
 125         /* By default packets are dropped if no descriptors are available */
 126         dev_info->default_rxconf.rx_drop_en = 1;
 127
 128         dev_info->rx_offload_capa =
 129                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 130                 DEV_RX_OFFLOAD_UDP_CKSUM |
 131                 DEV_RX_OFFLOAD_TCP_CKSUM;
 132
 133         dev_info->tx_offload_capa =
 134                 DEV_TX_OFFLOAD_IPV4_CKSUM |
 135                 DEV_TX_OFFLOAD_UDP_CKSUM |
 136                 DEV_TX_OFFLOAD_TCP_CKSUM;
 137
 138         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 139         if ((~sa->dp_tx->features & SFC_DP_TX_FEAT_VLAN_INSERT) ||
 140             !encp->enc_hw_tx_insert_vlan_enabled)
 141                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOVLANOFFL;
 142         else
 143                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_VLAN_INSERT;
 144
 145         if (~sa->dp_tx->features & SFC_DP_TX_FEAT_MULTI_SEG)
 146                 dev_info->default_txconf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 147
 148 #if EFSYS_OPT_RX_SCALE
 149         if (sa->rss_support != EFX_RX_SCALE_UNAVAILABLE) {
 150                 dev_info->reta_size = EFX_RSS_TBL_SIZE;
 151                 dev_info->hash_key_size = SFC_RSS_KEY_SIZE;
 152                 dev_info->flow_type_rss_offloads = SFC_RSS_OFFLOADS;
 153         }
 154 #endif
 155
 156         if (sa->tso)
 157                 dev_info->tx_offload_capa |= DEV_TX_OFFLOAD_TCP_TSO;
 158
 159         dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS;
 160         dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS;
 161         /* The RXQ hardware requires that the descriptor count is a power
 162          * of 2, but rx_desc_lim cannot properly describe that constraint.
 163          */
 164         dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS;
 165
 166         dev_info->tx_desc_lim.nb_max = sa->txq_max_entries;
 167         dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS;
 168         /*
 169          * The TXQ hardware requires that the descriptor count is a power
 170          * of 2, but tx_desc_lim cannot properly describe that constraint
 171          */
 172         dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS;
 173 }
 174
 175 static const uint32_t *
 176 sfc_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 177 {
 178         struct sfc_adapter *sa = dev->data->dev_private;
 179
 180         return sa->dp_rx->supported_ptypes_get();
 181 }
 182
 183 static int
 184 sfc_dev_configure(struct rte_eth_dev *dev)
 185 {
 186         struct rte_eth_dev_data *dev_data = dev->data;
 187         struct sfc_adapter *sa = dev_data->dev_private;
 188         int rc;
 189
 190         sfc_log_init(sa, "entry n_rxq=%u n_txq=%u",
 191                      dev_data->nb_rx_queues, dev_data->nb_tx_queues);
 192
 193         sfc_adapter_lock(sa);
 194         switch (sa->state) {
 195         case SFC_ADAPTER_CONFIGURED:
 196                 /* FALLTHROUGH */
 197         case SFC_ADAPTER_INITIALIZED:
 198                 rc = sfc_configure(sa);
 199                 break;
 200         default:
 201                 sfc_err(sa, "unexpected adapter state %u to configure",
 202                         sa->state);
 203                 rc = EINVAL;
 204                 break;
 205         }
 206         sfc_adapter_unlock(sa);
 207
 208         sfc_log_init(sa, "done %d", rc);
 209         SFC_ASSERT(rc >= 0);
 210         return -rc;
 211 }
 212
 213 static int
 214 sfc_dev_start(struct rte_eth_dev *dev)
 215 {
 216         struct sfc_adapter *sa = dev->data->dev_private;
 217         int rc;
 218
 219         sfc_log_init(sa, "entry");
 220
 221         sfc_adapter_lock(sa);
 222         rc = sfc_start(sa);
 223         sfc_adapter_unlock(sa);
 224
 225         sfc_log_init(sa, "done %d", rc);
 226         SFC_ASSERT(rc >= 0);
 227         return -rc;
 228 }
 229
 230 static int
 231 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
 232 {
 233         struct sfc_adapter *sa = dev->data->dev_private;
 234         struct rte_eth_link *dev_link = &dev->data->dev_link;
 235         struct rte_eth_link old_link;
 236         struct rte_eth_link current_link;
 237
 238         sfc_log_init(sa, "entry");
 239
 240 retry:
 241         EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
 242         *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
 243
 244         if (sa->state != SFC_ADAPTER_STARTED) {
 245                 sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, &current_link);
 246                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 247                                          *(uint64_t *)&old_link,
 248                                          *(uint64_t *)&current_link))
 249                         goto retry;
 250         } else if (wait_to_complete) {
 251                 efx_link_mode_t link_mode;
 252
 253                 if (efx_port_poll(sa->nic, &link_mode) != 0)
 254                         link_mode = EFX_LINK_UNKNOWN;
 255                 sfc_port_link_mode_to_info(link_mode, &current_link);
 256
 257                 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
 258                                          *(uint64_t *)&old_link,
 259                                          *(uint64_t *)&current_link))
 260                         goto retry;
 261         } else {
 262                 sfc_ev_mgmt_qpoll(sa);
 263                 *(int64_t *)&current_link =
 264                         rte_atomic64_read((rte_atomic64_t *)dev_link);
 265         }
 266
 267         if (old_link.link_status != current_link.link_status)
 268                 sfc_info(sa, "Link status is %s",
 269                          current_link.link_status ? "UP" : "DOWN");
 270
 271         return old_link.link_status == current_link.link_status ? 0 : -1;
 272 }
 273
 274 static void
 275 sfc_dev_stop(struct rte_eth_dev *dev)
 276 {
 277         struct sfc_adapter *sa = dev->data->dev_private;
 278
 279         sfc_log_init(sa, "entry");
 280
 281         sfc_adapter_lock(sa);
 282         sfc_stop(sa);
 283         sfc_adapter_unlock(sa);
 284
 285         sfc_log_init(sa, "done");
 286 }
 287
 288 static int
 289 sfc_dev_set_link_up(struct rte_eth_dev *dev)
 290 {
 291         struct sfc_adapter *sa = dev->data->dev_private;
 292         int rc;
 293
 294         sfc_log_init(sa, "entry");
 295
 296         sfc_adapter_lock(sa);
 297         rc = sfc_start(sa);
 298         sfc_adapter_unlock(sa);
 299
 300         SFC_ASSERT(rc >= 0);
 301         return -rc;
 302 }
 303
 304 static int
 305 sfc_dev_set_link_down(struct rte_eth_dev *dev)
 306 {
 307         struct sfc_adapter *sa = dev->data->dev_private;
 308
 309         sfc_log_init(sa, "entry");
 310
 311         sfc_adapter_lock(sa);
 312         sfc_stop(sa);
 313         sfc_adapter_unlock(sa);
 314
 315         return 0;
 316 }
 317
 318 static void
 319 sfc_dev_close(struct rte_eth_dev *dev)
 320 {
 321         struct sfc_adapter *sa = dev->data->dev_private;
 322
 323         sfc_log_init(sa, "entry");
 324
 325         sfc_adapter_lock(sa);
 326         switch (sa->state) {
 327         case SFC_ADAPTER_STARTED:
 328                 sfc_stop(sa);
 329                 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED);
 330                 /* FALLTHROUGH */
 331         case SFC_ADAPTER_CONFIGURED:
 332                 sfc_close(sa);
 333                 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED);
 334                 /* FALLTHROUGH */
 335         case SFC_ADAPTER_INITIALIZED:
 336                 break;
 337         default:
 338                 sfc_err(sa, "unexpected adapter state %u on close", sa->state);
 339                 break;
 340         }
 341         sfc_adapter_unlock(sa);
 342
 343         sfc_log_init(sa, "done");
 344 }
 345
 346 static void
 347 sfc_dev_filter_set(struct rte_eth_dev *dev, enum sfc_dev_filter_mode mode,
 348                    boolean_t enabled)
 349 {
 350         struct sfc_port *port;
 351         boolean_t *toggle;
 352         struct sfc_adapter *sa = dev->data->dev_private;
 353         boolean_t allmulti = (mode == SFC_DEV_FILTER_MODE_ALLMULTI);
 354         const char *desc = (allmulti) ? "all-multi" : "promiscuous";
 355
 356         sfc_adapter_lock(sa);
 357
 358         port = &sa->port;
 359         toggle = (allmulti) ? (&port->allmulti) : (&port->promisc);
 360
 361         if (*toggle != enabled) {
 362                 *toggle = enabled;
 363
 364                 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].rxq->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         sa->eth_dev->data->rx_queues[sw_index] = NULL;
 450
 451         sfc_rx_qfini(sa, sw_index);
 452
 453         sfc_adapter_unlock(sa);
 454 }
 455
 456 static int
 457 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 458                    uint16_t nb_tx_desc, unsigned int socket_id,
 459                    const struct rte_eth_txconf *tx_conf)
 460 {
 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] = sa->txq_info[tx_queue_id].txq->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 = sfc_txq_sw_index(txq);
 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_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues);
 506         sa->eth_dev->data->tx_queues[sw_index] = NULL;
 507
 508         sfc_tx_qfini(sa, sw_index);
 509
 510         sfc_adapter_unlock(sa);
 511 }
 512
 513 static void
 514 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 515 {
 516         struct sfc_adapter *sa = dev->data->dev_private;
 517         struct sfc_port *port = &sa->port;
 518         uint64_t *mac_stats;
 519
 520         rte_spinlock_lock(&port->mac_stats_lock);
 521
 522         if (sfc_port_update_mac_stats(sa) != 0)
 523                 goto unlock;
 524
 525         mac_stats = port->mac_stats_buf;
 526
 527         if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask,
 528                                    EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) {
 529                 stats->ipackets =
 530                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] +
 531                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] +
 532                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS];
 533                 stats->opackets =
 534                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] +
 535                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] +
 536                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS];
 537                 stats->ibytes =
 538                         mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] +
 539                         mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] +
 540                         mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES];
 541                 stats->obytes =
 542                         mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] +
 543                         mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] +
 544                         mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES];
 545                 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW];
 546                 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS];
 547                 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS];
 548         } else {
 549                 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS];
 550                 stats->opackets = mac_stats[EFX_MAC_TX_PKTS];
 551                 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS];
 552                 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS];
 553                 /*
 554                  * Take into account stats which are whenever supported
 555                  * on EF10. If some stat is not supported by current
 556                  * firmware variant or HW revision, it is guaranteed
 557                  * to be zero in mac_stats.
 558                  */
 559                 stats->imissed =
 560                         mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] +
 561                         mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] +
 562                         mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] +
 563                         mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] +
 564                         mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] +
 565                         mac_stats[EFX_MAC_PM_TRUNC_QBB] +
 566                         mac_stats[EFX_MAC_PM_DISCARD_QBB] +
 567                         mac_stats[EFX_MAC_PM_DISCARD_MAPPING] +
 568                         mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] +
 569                         mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS];
 570                 stats->ierrors =
 571                         mac_stats[EFX_MAC_RX_FCS_ERRORS] +
 572                         mac_stats[EFX_MAC_RX_ALIGN_ERRORS] +
 573                         mac_stats[EFX_MAC_RX_JABBER_PKTS];
 574                 /* no oerrors counters supported on EF10 */
 575         }
 576
 577 unlock:
 578         rte_spinlock_unlock(&port->mac_stats_lock);
 579 }
 580
 581 static void
 582 sfc_stats_reset(struct rte_eth_dev *dev)
 583 {
 584         struct sfc_adapter *sa = dev->data->dev_private;
 585         struct sfc_port *port = &sa->port;
 586         int rc;
 587
 588         if (sa->state != SFC_ADAPTER_STARTED) {
 589                 /*
 590                  * The operation cannot be done if port is not started; it
 591                  * will be scheduled to be done during the next port start
 592                  */
 593                 port->mac_stats_reset_pending = B_TRUE;
 594                 return;
 595         }
 596
 597         rc = sfc_port_reset_mac_stats(sa);
 598         if (rc != 0)
 599                 sfc_err(sa, "failed to reset statistics (rc = %d)", rc);
 600 }
 601
 602 static int
 603 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
 604                unsigned int xstats_count)
 605 {
 606         struct sfc_adapter *sa = dev->data->dev_private;
 607         struct sfc_port *port = &sa->port;
 608         uint64_t *mac_stats;
 609         int rc;
 610         unsigned int i;
 611         int nstats = 0;
 612
 613         rte_spinlock_lock(&port->mac_stats_lock);
 614
 615         rc = sfc_port_update_mac_stats(sa);
 616         if (rc != 0) {
 617                 SFC_ASSERT(rc > 0);
 618                 nstats = -rc;
 619                 goto unlock;
 620         }
 621
 622         mac_stats = port->mac_stats_buf;
 623
 624         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 625                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 626                         if (xstats != NULL && nstats < (int)xstats_count) {
 627                                 xstats[nstats].id = nstats;
 628                                 xstats[nstats].value = mac_stats[i];
 629                         }
 630                         nstats++;
 631                 }
 632         }
 633
 634 unlock:
 635         rte_spinlock_unlock(&port->mac_stats_lock);
 636
 637         return nstats;
 638 }
 639
 640 static int
 641 sfc_xstats_get_names(struct rte_eth_dev *dev,
 642                      struct rte_eth_xstat_name *xstats_names,
 643                      unsigned int xstats_count)
 644 {
 645         struct sfc_adapter *sa = dev->data->dev_private;
 646         struct sfc_port *port = &sa->port;
 647         unsigned int i;
 648         unsigned int nstats = 0;
 649
 650         for (i = 0; i < EFX_MAC_NSTATS; ++i) {
 651                 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) {
 652                         if (xstats_names != NULL && nstats < xstats_count)
 653                                 strncpy(xstats_names[nstats].name,
 654                                         efx_mac_stat_name(sa->nic, i),
 655                                         sizeof(xstats_names[0].name));
 656                         nstats++;
 657                 }
 658         }
 659
 660         return nstats;
 661 }
 662
 663 static int
 664 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 665 {
 666         struct sfc_adapter *sa = dev->data->dev_private;
 667         unsigned int wanted_fc, link_fc;
 668
 669         memset(fc_conf, 0, sizeof(*fc_conf));
 670
 671         sfc_adapter_lock(sa);
 672
 673         if (sa->state == SFC_ADAPTER_STARTED)
 674                 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc);
 675         else
 676                 link_fc = sa->port.flow_ctrl;
 677
 678         switch (link_fc) {
 679         case 0:
 680                 fc_conf->mode = RTE_FC_NONE;
 681                 break;
 682         case EFX_FCNTL_RESPOND:
 683                 fc_conf->mode = RTE_FC_RX_PAUSE;
 684                 break;
 685         case EFX_FCNTL_GENERATE:
 686                 fc_conf->mode = RTE_FC_TX_PAUSE;
 687                 break;
 688         case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE):
 689                 fc_conf->mode = RTE_FC_FULL;
 690                 break;
 691         default:
 692                 sfc_err(sa, "%s: unexpected flow control value %#x",
 693                         __func__, link_fc);
 694         }
 695
 696         fc_conf->autoneg = sa->port.flow_ctrl_autoneg;
 697
 698         sfc_adapter_unlock(sa);
 699
 700         return 0;
 701 }
 702
 703 static int
 704 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf)
 705 {
 706         struct sfc_adapter *sa = dev->data->dev_private;
 707         struct sfc_port *port = &sa->port;
 708         unsigned int fcntl;
 709         int rc;
 710
 711         if (fc_conf->high_water != 0 || fc_conf->low_water != 0 ||
 712             fc_conf->pause_time != 0 || fc_conf->send_xon != 0 ||
 713             fc_conf->mac_ctrl_frame_fwd != 0) {
 714                 sfc_err(sa, "unsupported flow control settings specified");
 715                 rc = EINVAL;
 716                 goto fail_inval;
 717         }
 718
 719         switch (fc_conf->mode) {
 720         case RTE_FC_NONE:
 721                 fcntl = 0;
 722                 break;
 723         case RTE_FC_RX_PAUSE:
 724                 fcntl = EFX_FCNTL_RESPOND;
 725                 break;
 726         case RTE_FC_TX_PAUSE:
 727                 fcntl = EFX_FCNTL_GENERATE;
 728                 break;
 729         case RTE_FC_FULL:
 730                 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE;
 731                 break;
 732         default:
 733                 rc = EINVAL;
 734                 goto fail_inval;
 735         }
 736
 737         sfc_adapter_lock(sa);
 738
 739         if (sa->state == SFC_ADAPTER_STARTED) {
 740                 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg);
 741                 if (rc != 0)
 742                         goto fail_mac_fcntl_set;
 743         }
 744
 745         port->flow_ctrl = fcntl;
 746         port->flow_ctrl_autoneg = fc_conf->autoneg;
 747
 748         sfc_adapter_unlock(sa);
 749
 750         return 0;
 751
 752 fail_mac_fcntl_set:
 753         sfc_adapter_unlock(sa);
 754 fail_inval:
 755         SFC_ASSERT(rc > 0);
 756         return -rc;
 757 }
 758
 759 static int
 760 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 761 {
 762         struct sfc_adapter *sa = dev->data->dev_private;
 763         size_t pdu = EFX_MAC_PDU(mtu);
 764         size_t old_pdu;
 765         int rc;
 766
 767         sfc_log_init(sa, "mtu=%u", mtu);
 768
 769         rc = EINVAL;
 770         if (pdu < EFX_MAC_PDU_MIN) {
 771                 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)",
 772                         (unsigned int)mtu, (unsigned int)pdu,
 773                         EFX_MAC_PDU_MIN);
 774                 goto fail_inval;
 775         }
 776         if (pdu > EFX_MAC_PDU_MAX) {
 777                 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)",
 778                         (unsigned int)mtu, (unsigned int)pdu,
 779                         EFX_MAC_PDU_MAX);
 780                 goto fail_inval;
 781         }
 782
 783         sfc_adapter_lock(sa);
 784
 785         if (pdu != sa->port.pdu) {
 786                 if (sa->state == SFC_ADAPTER_STARTED) {
 787                         sfc_stop(sa);
 788
 789                         old_pdu = sa->port.pdu;
 790                         sa->port.pdu = pdu;
 791                         rc = sfc_start(sa);
 792                         if (rc != 0)
 793                                 goto fail_start;
 794                 } else {
 795                         sa->port.pdu = pdu;
 796                 }
 797         }
 798
 799         /*
 800          * The driver does not use it, but other PMDs update jumbo_frame
 801          * flag and max_rx_pkt_len when MTU is set.
 802          */
 803         dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN);
 804         dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu;
 805
 806         sfc_adapter_unlock(sa);
 807
 808         sfc_log_init(sa, "done");
 809         return 0;
 810
 811 fail_start:
 812         sa->port.pdu = old_pdu;
 813         if (sfc_start(sa) != 0)
 814                 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) "
 815                         "PDU max size - port is stopped",
 816                         (unsigned int)pdu, (unsigned int)old_pdu);
 817         sfc_adapter_unlock(sa);
 818
 819 fail_inval:
 820         sfc_log_init(sa, "failed %d", rc);
 821         SFC_ASSERT(rc > 0);
 822         return -rc;
 823 }
 824 static void
 825 sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 826 {
 827         struct sfc_adapter *sa = dev->data->dev_private;
 828         const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
 829         int rc;
 830
 831         sfc_adapter_lock(sa);
 832
 833         if (sa->state != SFC_ADAPTER_STARTED) {
 834                 sfc_info(sa, "the port is not started");
 835                 sfc_info(sa, "the new MAC address will be set on port start");
 836
 837                 goto unlock;
 838         }
 839
 840         if (encp->enc_allow_set_mac_with_installed_filters) {
 841                 rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
 842                 if (rc != 0) {
 843                         sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
 844                         goto unlock;
 845                 }
 846
 847                 /*
 848                  * Changing the MAC address by means of MCDI request
 849                  * has no effect on received traffic, therefore
 850                  * we also need to update unicast filters
 851                  */
 852                 rc = sfc_set_rx_mode(sa);
 853                 if (rc != 0)
 854                         sfc_err(sa, "cannot set filter (rc = %u)", rc);
 855         } else {
 856                 sfc_warn(sa, "cannot set MAC address with filters installed");
 857                 sfc_warn(sa, "adapter will be restarted to pick the new MAC");
 858                 sfc_warn(sa, "(some traffic may be dropped)");
 859
 860                 /*
 861                  * Since setting MAC address with filters installed is not
 862                  * allowed on the adapter, one needs to simply restart adapter
 863                  * so that the new MAC address will be taken from an outer
 864                  * storage and set flawlessly by means of sfc_start() call
 865                  */
 866                 sfc_stop(sa);
 867                 rc = sfc_start(sa);
 868                 if (rc != 0)
 869                         sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
 870         }
 871
 872 unlock:
 873         sfc_adapter_unlock(sa);
 874 }
 875
 876
 877 static int
 878 sfc_set_mc_addr_list(struct rte_eth_dev *dev, struct ether_addr *mc_addr_set,
 879                      uint32_t nb_mc_addr)
 880 {
 881         struct sfc_adapter *sa = dev->data->dev_private;
 882         struct sfc_port *port = &sa->port;
 883         uint8_t *mc_addrs = port->mcast_addrs;
 884         int rc;
 885         unsigned int i;
 886
 887         if (mc_addrs == NULL)
 888                 return -ENOBUFS;
 889
 890         if (nb_mc_addr > port->max_mcast_addrs) {
 891                 sfc_err(sa, "too many multicast addresses: %u > %u",
 892                          nb_mc_addr, port->max_mcast_addrs);
 893                 return -EINVAL;
 894         }
 895
 896         for (i = 0; i < nb_mc_addr; ++i) {
 897                 (void)rte_memcpy(mc_addrs, mc_addr_set[i].addr_bytes,
 898                                  EFX_MAC_ADDR_LEN);
 899                 mc_addrs += EFX_MAC_ADDR_LEN;
 900         }
 901
 902         port->nb_mcast_addrs = nb_mc_addr;
 903
 904         if (sa->state != SFC_ADAPTER_STARTED)
 905                 return 0;
 906
 907         rc = efx_mac_multicast_list_set(sa->nic, port->mcast_addrs,
 908                                         port->nb_mcast_addrs);
 909         if (rc != 0)
 910                 sfc_err(sa, "cannot set multicast address list (rc = %u)", rc);
 911
 912         SFC_ASSERT(rc > 0);
 913         return -rc;
 914 }
 915
 916 /*
 917  * The function is used by the secondary process as well. It must not
 918  * use any process-local pointers from the adapter data.
 919  */
 920 static void
 921 sfc_rx_queue_info_get(struct rte_eth_dev *dev, uint16_t rx_queue_id,
 922                       struct rte_eth_rxq_info *qinfo)
 923 {
 924         struct sfc_adapter *sa = dev->data->dev_private;
 925         struct sfc_rxq_info *rxq_info;
 926         struct sfc_rxq *rxq;
 927
 928         sfc_adapter_lock(sa);
 929
 930         SFC_ASSERT(rx_queue_id < sa->rxq_count);
 931
 932         rxq_info = &sa->rxq_info[rx_queue_id];
 933         rxq = rxq_info->rxq;
 934         SFC_ASSERT(rxq != NULL);
 935
 936         qinfo->mp = rxq->refill_mb_pool;
 937         qinfo->conf.rx_free_thresh = rxq->refill_threshold;
 938         qinfo->conf.rx_drop_en = 1;
 939         qinfo->conf.rx_deferred_start = rxq_info->deferred_start;
 940         qinfo->scattered_rx = (rxq_info->type == EFX_RXQ_TYPE_SCATTER);
 941         qinfo->nb_desc = rxq_info->entries;
 942
 943         sfc_adapter_unlock(sa);
 944 }
 945
 946 /*
 947  * The function is used by the secondary process as well. It must not
 948  * use any process-local pointers from the adapter data.
 949  */
 950 static void
 951 sfc_tx_queue_info_get(struct rte_eth_dev *dev, uint16_t tx_queue_id,
 952                       struct rte_eth_txq_info *qinfo)
 953 {
 954         struct sfc_adapter *sa = dev->data->dev_private;
 955         struct sfc_txq_info *txq_info;
 956
 957         sfc_adapter_lock(sa);
 958
 959         SFC_ASSERT(tx_queue_id < sa->txq_count);
 960
 961         txq_info = &sa->txq_info[tx_queue_id];
 962         SFC_ASSERT(txq_info->txq != NULL);
 963
 964         memset(qinfo, 0, sizeof(*qinfo));
 965
 966         qinfo->conf.txq_flags = txq_info->txq->flags;
 967         qinfo->conf.tx_free_thresh = txq_info->txq->free_thresh;
 968         qinfo->conf.tx_deferred_start = txq_info->deferred_start;
 969         qinfo->nb_desc = txq_info->entries;
 970
 971         sfc_adapter_unlock(sa);
 972 }
 973
 974 static uint32_t
 975 sfc_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 976 {
 977         struct sfc_adapter *sa = dev->data->dev_private;
 978
 979         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 980
 981         return sfc_rx_qdesc_npending(sa, rx_queue_id);
 982 }
 983
 984 static int
 985 sfc_rx_descriptor_done(void *queue, uint16_t offset)
 986 {
 987         struct sfc_dp_rxq *dp_rxq = queue;
 988
 989         return sfc_rx_qdesc_done(dp_rxq, offset);
 990 }
 991
 992 static int
 993 sfc_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 994 {
 995         struct sfc_adapter *sa = dev->data->dev_private;
 996         int rc;
 997
 998         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
 999
1000         sfc_adapter_lock(sa);
1001
1002         rc = EINVAL;
1003         if (sa->state != SFC_ADAPTER_STARTED)
1004                 goto fail_not_started;
1005
1006         rc = sfc_rx_qstart(sa, rx_queue_id);
1007         if (rc != 0)
1008                 goto fail_rx_qstart;
1009
1010         sa->rxq_info[rx_queue_id].deferred_started = B_TRUE;
1011
1012         sfc_adapter_unlock(sa);
1013
1014         return 0;
1015
1016 fail_rx_qstart:
1017 fail_not_started:
1018         sfc_adapter_unlock(sa);
1019         SFC_ASSERT(rc > 0);
1020         return -rc;
1021 }
1022
1023 static int
1024 sfc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
1025 {
1026         struct sfc_adapter *sa = dev->data->dev_private;
1027
1028         sfc_log_init(sa, "RxQ=%u", rx_queue_id);
1029
1030         sfc_adapter_lock(sa);
1031         sfc_rx_qstop(sa, rx_queue_id);
1032
1033         sa->rxq_info[rx_queue_id].deferred_started = B_FALSE;
1034
1035         sfc_adapter_unlock(sa);
1036
1037         return 0;
1038 }
1039
1040 static int
1041 sfc_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1042 {
1043         struct sfc_adapter *sa = dev->data->dev_private;
1044         int rc;
1045
1046         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1047
1048         sfc_adapter_lock(sa);
1049
1050         rc = EINVAL;
1051         if (sa->state != SFC_ADAPTER_STARTED)
1052                 goto fail_not_started;
1053
1054         rc = sfc_tx_qstart(sa, tx_queue_id);
1055         if (rc != 0)
1056                 goto fail_tx_qstart;
1057
1058         sa->txq_info[tx_queue_id].deferred_started = B_TRUE;
1059
1060         sfc_adapter_unlock(sa);
1061         return 0;
1062
1063 fail_tx_qstart:
1064
1065 fail_not_started:
1066         sfc_adapter_unlock(sa);
1067         SFC_ASSERT(rc > 0);
1068         return -rc;
1069 }
1070
1071 static int
1072 sfc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id)
1073 {
1074         struct sfc_adapter *sa = dev->data->dev_private;
1075
1076         sfc_log_init(sa, "TxQ = %u", tx_queue_id);
1077
1078         sfc_adapter_lock(sa);
1079
1080         sfc_tx_qstop(sa, tx_queue_id);
1081
1082         sa->txq_info[tx_queue_id].deferred_started = B_FALSE;
1083
1084         sfc_adapter_unlock(sa);
1085         return 0;
1086 }
1087
1088 #if EFSYS_OPT_RX_SCALE
1089 static int
1090 sfc_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
1091                           struct rte_eth_rss_conf *rss_conf)
1092 {
1093         struct sfc_adapter *sa = dev->data->dev_private;
1094
1095         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)
1096                 return -ENOTSUP;
1097
1098         if (sa->rss_channels == 0)
1099                 return -EINVAL;
1100
1101         sfc_adapter_lock(sa);
1102
1103         /*
1104          * Mapping of hash configuration between RTE and EFX is not one-to-one,
1105          * hence, conversion is done here to derive a correct set of ETH_RSS
1106          * flags which corresponds to the active EFX configuration stored
1107          * locally in 'sfc_adapter' and kept up-to-date
1108          */
1109         rss_conf->rss_hf = sfc_efx_to_rte_hash_type(sa->rss_hash_types);
1110         rss_conf->rss_key_len = SFC_RSS_KEY_SIZE;
1111         if (rss_conf->rss_key != NULL)
1112                 rte_memcpy(rss_conf->rss_key, sa->rss_key, SFC_RSS_KEY_SIZE);
1113
1114         sfc_adapter_unlock(sa);
1115
1116         return 0;
1117 }
1118
1119 static int
1120 sfc_dev_rss_hash_update(struct rte_eth_dev *dev,
1121                         struct rte_eth_rss_conf *rss_conf)
1122 {
1123         struct sfc_adapter *sa = dev->data->dev_private;
1124         unsigned int efx_hash_types;
1125         int rc = 0;
1126
1127         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1128                 sfc_err(sa, "RSS is not available");
1129                 return -ENOTSUP;
1130         }
1131
1132         if (sa->rss_channels == 0) {
1133                 sfc_err(sa, "RSS is not configured");
1134                 return -EINVAL;
1135         }
1136
1137         if ((rss_conf->rss_key != NULL) &&
1138             (rss_conf->rss_key_len != sizeof(sa->rss_key))) {
1139                 sfc_err(sa, "RSS key size is wrong (should be %lu)",
1140                         sizeof(sa->rss_key));
1141                 return -EINVAL;
1142         }
1143
1144         if ((rss_conf->rss_hf & ~SFC_RSS_OFFLOADS) != 0) {
1145                 sfc_err(sa, "unsupported hash functions requested");
1146                 return -EINVAL;
1147         }
1148
1149         sfc_adapter_lock(sa);
1150
1151         efx_hash_types = sfc_rte_to_efx_hash_type(rss_conf->rss_hf);
1152
1153         rc = efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1154                                    efx_hash_types, B_TRUE);
1155         if (rc != 0)
1156                 goto fail_scale_mode_set;
1157
1158         if (rss_conf->rss_key != NULL) {
1159                 if (sa->state == SFC_ADAPTER_STARTED) {
1160                         rc = efx_rx_scale_key_set(sa->nic, rss_conf->rss_key,
1161                                                   sizeof(sa->rss_key));
1162                         if (rc != 0)
1163                                 goto fail_scale_key_set;
1164                 }
1165
1166                 rte_memcpy(sa->rss_key, rss_conf->rss_key, sizeof(sa->rss_key));
1167         }
1168
1169         sa->rss_hash_types = efx_hash_types;
1170
1171         sfc_adapter_unlock(sa);
1172
1173         return 0;
1174
1175 fail_scale_key_set:
1176         if (efx_rx_scale_mode_set(sa->nic, EFX_RX_HASHALG_TOEPLITZ,
1177                                   sa->rss_hash_types, B_TRUE) != 0)
1178                 sfc_err(sa, "failed to restore RSS mode");
1179
1180 fail_scale_mode_set:
1181         sfc_adapter_unlock(sa);
1182         return -rc;
1183 }
1184
1185 static int
1186 sfc_dev_rss_reta_query(struct rte_eth_dev *dev,
1187                        struct rte_eth_rss_reta_entry64 *reta_conf,
1188                        uint16_t reta_size)
1189 {
1190         struct sfc_adapter *sa = dev->data->dev_private;
1191         int entry;
1192
1193         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE)
1194                 return -ENOTSUP;
1195
1196         if (sa->rss_channels == 0)
1197                 return -EINVAL;
1198
1199         if (reta_size != EFX_RSS_TBL_SIZE)
1200                 return -EINVAL;
1201
1202         sfc_adapter_lock(sa);
1203
1204         for (entry = 0; entry < reta_size; entry++) {
1205                 int grp = entry / RTE_RETA_GROUP_SIZE;
1206                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1207
1208                 if ((reta_conf[grp].mask >> grp_idx) & 1)
1209                         reta_conf[grp].reta[grp_idx] = sa->rss_tbl[entry];
1210         }
1211
1212         sfc_adapter_unlock(sa);
1213
1214         return 0;
1215 }
1216
1217 static int
1218 sfc_dev_rss_reta_update(struct rte_eth_dev *dev,
1219                         struct rte_eth_rss_reta_entry64 *reta_conf,
1220                         uint16_t reta_size)
1221 {
1222         struct sfc_adapter *sa = dev->data->dev_private;
1223         unsigned int *rss_tbl_new;
1224         uint16_t entry;
1225         int rc;
1226
1227
1228         if (sa->rss_support != EFX_RX_SCALE_EXCLUSIVE) {
1229                 sfc_err(sa, "RSS is not available");
1230                 return -ENOTSUP;
1231         }
1232
1233         if (sa->rss_channels == 0) {
1234                 sfc_err(sa, "RSS is not configured");
1235                 return -EINVAL;
1236         }
1237
1238         if (reta_size != EFX_RSS_TBL_SIZE) {
1239                 sfc_err(sa, "RETA size is wrong (should be %u)",
1240                         EFX_RSS_TBL_SIZE);
1241                 return -EINVAL;
1242         }
1243
1244         rss_tbl_new = rte_zmalloc("rss_tbl_new", sizeof(sa->rss_tbl), 0);
1245         if (rss_tbl_new == NULL)
1246                 return -ENOMEM;
1247
1248         sfc_adapter_lock(sa);
1249
1250         rte_memcpy(rss_tbl_new, sa->rss_tbl, sizeof(sa->rss_tbl));
1251
1252         for (entry = 0; entry < reta_size; entry++) {
1253                 int grp_idx = entry % RTE_RETA_GROUP_SIZE;
1254                 struct rte_eth_rss_reta_entry64 *grp;
1255
1256                 grp = &reta_conf[entry / RTE_RETA_GROUP_SIZE];
1257
1258                 if (grp->mask & (1ull << grp_idx)) {
1259                         if (grp->reta[grp_idx] >= sa->rss_channels) {
1260                                 rc = EINVAL;
1261                                 goto bad_reta_entry;
1262                         }
1263                         rss_tbl_new[entry] = grp->reta[grp_idx];
1264                 }
1265         }
1266
1267         rc = efx_rx_scale_tbl_set(sa->nic, rss_tbl_new, EFX_RSS_TBL_SIZE);
1268         if (rc == 0)
1269                 rte_memcpy(sa->rss_tbl, rss_tbl_new, sizeof(sa->rss_tbl));
1270
1271 bad_reta_entry:
1272         sfc_adapter_unlock(sa);
1273
1274         rte_free(rss_tbl_new);
1275
1276         SFC_ASSERT(rc >= 0);
1277         return -rc;
1278 }
1279 #endif
1280
1281 static int
1282 sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1283                     enum rte_filter_op filter_op,
1284                     void *arg)
1285 {
1286         struct sfc_adapter *sa = dev->data->dev_private;
1287         int rc = ENOTSUP;
1288
1289         sfc_log_init(sa, "entry");
1290
1291         switch (filter_type) {
1292         case RTE_ETH_FILTER_NONE:
1293                 sfc_err(sa, "Global filters configuration not supported");
1294                 break;
1295         case RTE_ETH_FILTER_MACVLAN:
1296                 sfc_err(sa, "MACVLAN filters not supported");
1297                 break;
1298         case RTE_ETH_FILTER_ETHERTYPE:
1299                 sfc_err(sa, "EtherType filters not supported");
1300                 break;
1301         case RTE_ETH_FILTER_FLEXIBLE:
1302                 sfc_err(sa, "Flexible filters not supported");
1303                 break;
1304         case RTE_ETH_FILTER_SYN:
1305                 sfc_err(sa, "SYN filters not supported");
1306                 break;
1307         case RTE_ETH_FILTER_NTUPLE:
1308                 sfc_err(sa, "NTUPLE filters not supported");
1309                 break;
1310         case RTE_ETH_FILTER_TUNNEL:
1311                 sfc_err(sa, "Tunnel filters not supported");
1312                 break;
1313         case RTE_ETH_FILTER_FDIR:
1314                 sfc_err(sa, "Flow Director filters not supported");
1315                 break;
1316         case RTE_ETH_FILTER_HASH:
1317                 sfc_err(sa, "Hash filters not supported");
1318                 break;
1319         case RTE_ETH_FILTER_GENERIC:
1320                 if (filter_op != RTE_ETH_FILTER_GET) {
1321                         rc = EINVAL;
1322                 } else {
1323                         *(const void **)arg = &sfc_flow_ops;
1324                         rc = 0;
1325                 }
1326                 break;
1327         default:
1328                 sfc_err(sa, "Unknown filter type %u", filter_type);
1329                 break;
1330         }
1331
1332         sfc_log_init(sa, "exit: %d", -rc);
1333         SFC_ASSERT(rc >= 0);
1334         return -rc;
1335 }
1336
1337 static const struct eth_dev_ops sfc_eth_dev_ops = {
1338         .dev_configure                  = sfc_dev_configure,
1339         .dev_start                      = sfc_dev_start,
1340         .dev_stop                       = sfc_dev_stop,
1341         .dev_set_link_up                = sfc_dev_set_link_up,
1342         .dev_set_link_down              = sfc_dev_set_link_down,
1343         .dev_close                      = sfc_dev_close,
1344         .promiscuous_enable             = sfc_dev_promisc_enable,
1345         .promiscuous_disable            = sfc_dev_promisc_disable,
1346         .allmulticast_enable            = sfc_dev_allmulti_enable,
1347         .allmulticast_disable           = sfc_dev_allmulti_disable,
1348         .link_update                    = sfc_dev_link_update,
1349         .stats_get                      = sfc_stats_get,
1350         .stats_reset                    = sfc_stats_reset,
1351         .xstats_get                     = sfc_xstats_get,
1352         .xstats_reset                   = sfc_stats_reset,
1353         .xstats_get_names               = sfc_xstats_get_names,
1354         .dev_infos_get                  = sfc_dev_infos_get,
1355         .dev_supported_ptypes_get       = sfc_dev_supported_ptypes_get,
1356         .mtu_set                        = sfc_dev_set_mtu,
1357         .rx_queue_start                 = sfc_rx_queue_start,
1358         .rx_queue_stop                  = sfc_rx_queue_stop,
1359         .tx_queue_start                 = sfc_tx_queue_start,
1360         .tx_queue_stop                  = sfc_tx_queue_stop,
1361         .rx_queue_setup                 = sfc_rx_queue_setup,
1362         .rx_queue_release               = sfc_rx_queue_release,
1363         .rx_queue_count                 = sfc_rx_queue_count,
1364         .rx_descriptor_done             = sfc_rx_descriptor_done,
1365         .tx_queue_setup                 = sfc_tx_queue_setup,
1366         .tx_queue_release               = sfc_tx_queue_release,
1367         .flow_ctrl_get                  = sfc_flow_ctrl_get,
1368         .flow_ctrl_set                  = sfc_flow_ctrl_set,
1369         .mac_addr_set                   = sfc_mac_addr_set,
1370 #if EFSYS_OPT_RX_SCALE
1371         .reta_update                    = sfc_dev_rss_reta_update,
1372         .reta_query                     = sfc_dev_rss_reta_query,
1373         .rss_hash_update                = sfc_dev_rss_hash_update,
1374         .rss_hash_conf_get              = sfc_dev_rss_hash_conf_get,
1375 #endif
1376         .filter_ctrl                    = sfc_dev_filter_ctrl,
1377         .set_mc_addr_list               = sfc_set_mc_addr_list,
1378         .rxq_info_get                   = sfc_rx_queue_info_get,
1379         .txq_info_get                   = sfc_tx_queue_info_get,
1380         .fw_version_get                 = sfc_fw_version_get,
1381 };
1382
1383 /**
1384  * Duplicate a string in potentially shared memory required for
1385  * multi-process support.
1386  *
1387  * strdup() allocates from process-local heap/memory.
1388  */
1389 static char *
1390 sfc_strdup(const char *str)
1391 {
1392         size_t size;
1393         char *copy;
1394
1395         if (str == NULL)
1396                 return NULL;
1397
1398         size = strlen(str) + 1;
1399         copy = rte_malloc(__func__, size, 0);
1400         if (copy != NULL)
1401                 rte_memcpy(copy, str, size);
1402
1403         return copy;
1404 }
1405
1406 static int
1407 sfc_eth_dev_set_ops(struct rte_eth_dev *dev)
1408 {
1409         struct sfc_adapter *sa = dev->data->dev_private;
1410         unsigned int avail_caps = 0;
1411         const char *rx_name = NULL;
1412         const char *tx_name = NULL;
1413         int rc;
1414
1415         switch (sa->family) {
1416         case EFX_FAMILY_HUNTINGTON:
1417         case EFX_FAMILY_MEDFORD:
1418                 avail_caps |= SFC_DP_HW_FW_CAP_EF10;
1419                 break;
1420         default:
1421                 break;
1422         }
1423
1424         rc = sfc_kvargs_process(sa, SFC_KVARG_RX_DATAPATH,
1425                                 sfc_kvarg_string_handler, &rx_name);
1426         if (rc != 0)
1427                 goto fail_kvarg_rx_datapath;
1428
1429         if (rx_name != NULL) {
1430                 sa->dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, rx_name);
1431                 if (sa->dp_rx == NULL) {
1432                         sfc_err(sa, "Rx datapath %s not found", rx_name);
1433                         rc = ENOENT;
1434                         goto fail_dp_rx;
1435                 }
1436                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_rx->dp, avail_caps)) {
1437                         sfc_err(sa,
1438                                 "Insufficient Hw/FW capabilities to use Rx datapath %s",
1439                                 rx_name);
1440                         rc = EINVAL;
1441                         goto fail_dp_rx_caps;
1442                 }
1443         } else {
1444                 sa->dp_rx = sfc_dp_find_rx_by_caps(&sfc_dp_head, avail_caps);
1445                 if (sa->dp_rx == NULL) {
1446                         sfc_err(sa, "Rx datapath by caps %#x not found",
1447                                 avail_caps);
1448                         rc = ENOENT;
1449                         goto fail_dp_rx;
1450                 }
1451         }
1452
1453         sa->dp_rx_name = sfc_strdup(sa->dp_rx->dp.name);
1454         if (sa->dp_rx_name == NULL) {
1455                 rc = ENOMEM;
1456                 goto fail_dp_rx_name;
1457         }
1458
1459         sfc_info(sa, "use %s Rx datapath", sa->dp_rx_name);
1460
1461         dev->rx_pkt_burst = sa->dp_rx->pkt_burst;
1462
1463         rc = sfc_kvargs_process(sa, SFC_KVARG_TX_DATAPATH,
1464                                 sfc_kvarg_string_handler, &tx_name);
1465         if (rc != 0)
1466                 goto fail_kvarg_tx_datapath;
1467
1468         if (tx_name != NULL) {
1469                 sa->dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, tx_name);
1470                 if (sa->dp_tx == NULL) {
1471                         sfc_err(sa, "Tx datapath %s not found", tx_name);
1472                         rc = ENOENT;
1473                         goto fail_dp_tx;
1474                 }
1475                 if (!sfc_dp_match_hw_fw_caps(&sa->dp_tx->dp, avail_caps)) {
1476                         sfc_err(sa,
1477                                 "Insufficient Hw/FW capabilities to use Tx datapath %s",
1478                                 tx_name);
1479                         rc = EINVAL;
1480                         goto fail_dp_tx_caps;
1481                 }
1482         } else {
1483                 sa->dp_tx = sfc_dp_find_tx_by_caps(&sfc_dp_head, avail_caps);
1484                 if (sa->dp_tx == NULL) {
1485                         sfc_err(sa, "Tx datapath by caps %#x not found",
1486                                 avail_caps);
1487                         rc = ENOENT;
1488                         goto fail_dp_tx;
1489                 }
1490         }
1491
1492         sa->dp_tx_name = sfc_strdup(sa->dp_tx->dp.name);
1493         if (sa->dp_tx_name == NULL) {
1494                 rc = ENOMEM;
1495                 goto fail_dp_tx_name;
1496         }
1497
1498         sfc_info(sa, "use %s Tx datapath", sa->dp_tx_name);
1499
1500         dev->tx_pkt_burst = sa->dp_tx->pkt_burst;
1501
1502         dev->dev_ops = &sfc_eth_dev_ops;
1503
1504         return 0;
1505
1506 fail_dp_tx_name:
1507 fail_dp_tx_caps:
1508         sa->dp_tx = NULL;
1509
1510 fail_dp_tx:
1511 fail_kvarg_tx_datapath:
1512         rte_free(sa->dp_rx_name);
1513         sa->dp_rx_name = NULL;
1514
1515 fail_dp_rx_name:
1516 fail_dp_rx_caps:
1517         sa->dp_rx = NULL;
1518
1519 fail_dp_rx:
1520 fail_kvarg_rx_datapath:
1521         return rc;
1522 }
1523
1524 static void
1525 sfc_eth_dev_clear_ops(struct rte_eth_dev *dev)
1526 {
1527         struct sfc_adapter *sa = dev->data->dev_private;
1528
1529         dev->dev_ops = NULL;
1530         dev->rx_pkt_burst = NULL;
1531         dev->tx_pkt_burst = NULL;
1532
1533         rte_free(sa->dp_tx_name);
1534         sa->dp_tx_name = NULL;
1535         sa->dp_tx = NULL;
1536
1537         rte_free(sa->dp_rx_name);
1538         sa->dp_rx_name = NULL;
1539         sa->dp_rx = NULL;
1540 }
1541
1542 static const struct eth_dev_ops sfc_eth_dev_secondary_ops = {
1543         .rxq_info_get                   = sfc_rx_queue_info_get,
1544         .txq_info_get                   = sfc_tx_queue_info_get,
1545 };
1546
1547 static int
1548 sfc_eth_dev_secondary_set_ops(struct rte_eth_dev *dev)
1549 {
1550         /*
1551          * Device private data has really many process-local pointers.
1552          * Below code should be extremely careful to use data located
1553          * in shared memory only.
1554          */
1555         struct sfc_adapter *sa = dev->data->dev_private;
1556         const struct sfc_dp_rx *dp_rx;
1557         const struct sfc_dp_tx *dp_tx;
1558         int rc;
1559
1560         dp_rx = sfc_dp_find_rx_by_name(&sfc_dp_head, sa->dp_rx_name);
1561         if (dp_rx == NULL) {
1562                 sfc_err(sa, "cannot find %s Rx datapath", sa->dp_tx_name);
1563                 rc = ENOENT;
1564                 goto fail_dp_rx;
1565         }
1566         if (~dp_rx->features & SFC_DP_RX_FEAT_MULTI_PROCESS) {
1567                 sfc_err(sa, "%s Rx datapath does not support multi-process",
1568                         sa->dp_tx_name);
1569                 rc = EINVAL;
1570                 goto fail_dp_rx_multi_process;
1571         }
1572
1573         dp_tx = sfc_dp_find_tx_by_name(&sfc_dp_head, sa->dp_tx_name);
1574         if (dp_tx == NULL) {
1575                 sfc_err(sa, "cannot find %s Tx datapath", sa->dp_tx_name);
1576                 rc = ENOENT;
1577                 goto fail_dp_tx;
1578         }
1579         if (~dp_tx->features & SFC_DP_TX_FEAT_MULTI_PROCESS) {
1580                 sfc_err(sa, "%s Tx datapath does not support multi-process",
1581                         sa->dp_tx_name);
1582                 rc = EINVAL;
1583                 goto fail_dp_tx_multi_process;
1584         }
1585
1586         dev->rx_pkt_burst = dp_rx->pkt_burst;
1587         dev->tx_pkt_burst = dp_tx->pkt_burst;
1588         dev->dev_ops = &sfc_eth_dev_secondary_ops;
1589
1590         return 0;
1591
1592 fail_dp_tx_multi_process:
1593 fail_dp_tx:
1594 fail_dp_rx_multi_process:
1595 fail_dp_rx:
1596         return rc;
1597 }
1598
1599 static void
1600 sfc_eth_dev_secondary_clear_ops(struct rte_eth_dev *dev)
1601 {
1602         dev->dev_ops = NULL;
1603         dev->tx_pkt_burst = NULL;
1604         dev->rx_pkt_burst = NULL;
1605 }
1606
1607 static void
1608 sfc_register_dp(void)
1609 {
1610         /* Register once */
1611         if (TAILQ_EMPTY(&sfc_dp_head)) {
1612                 /* Prefer EF10 datapath */
1613                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_rx.dp);
1614                 sfc_dp_register(&sfc_dp_head, &sfc_efx_rx.dp);
1615
1616                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_tx.dp);
1617                 sfc_dp_register(&sfc_dp_head, &sfc_efx_tx.dp);
1618                 sfc_dp_register(&sfc_dp_head, &sfc_ef10_simple_tx.dp);
1619         }
1620 }
1621
1622 static int
1623 sfc_eth_dev_init(struct rte_eth_dev *dev)
1624 {
1625         struct sfc_adapter *sa = dev->data->dev_private;
1626         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
1627         int rc;
1628         const efx_nic_cfg_t *encp;
1629         const struct ether_addr *from;
1630
1631         sfc_register_dp();
1632
1633         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
1634                 return -sfc_eth_dev_secondary_set_ops(dev);
1635
1636         /* Required for logging */
1637         sa->pci_addr = pci_dev->addr;
1638         sa->port_id = dev->data->port_id;
1639
1640         sa->eth_dev = dev;
1641
1642         /* Copy PCI device info to the dev->data */
1643         rte_eth_copy_pci_info(dev, pci_dev);
1644
1645         rc = sfc_kvargs_parse(sa);
1646         if (rc != 0)
1647                 goto fail_kvargs_parse;
1648
1649         rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT,
1650                                 sfc_kvarg_bool_handler, &sa->debug_init);
1651         if (rc != 0)
1652                 goto fail_kvarg_debug_init;
1653
1654         sfc_log_init(sa, "entry");
1655
1656         dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0);
1657         if (dev->data->mac_addrs == NULL) {
1658                 rc = ENOMEM;
1659                 goto fail_mac_addrs;
1660         }
1661
1662         sfc_adapter_lock_init(sa);
1663         sfc_adapter_lock(sa);
1664
1665         sfc_log_init(sa, "probing");
1666         rc = sfc_probe(sa);
1667         if (rc != 0)
1668                 goto fail_probe;
1669
1670         sfc_log_init(sa, "set device ops");
1671         rc = sfc_eth_dev_set_ops(dev);
1672         if (rc != 0)
1673                 goto fail_set_ops;
1674
1675         sfc_log_init(sa, "attaching");
1676         rc = sfc_attach(sa);
1677         if (rc != 0)
1678                 goto fail_attach;
1679
1680         encp = efx_nic_cfg_get(sa->nic);
1681
1682         /*
1683          * The arguments are really reverse order in comparison to
1684          * Linux kernel. Copy from NIC config to Ethernet device data.
1685          */
1686         from = (const struct ether_addr *)(encp->enc_mac_addr);
1687         ether_addr_copy(from, &dev->data->mac_addrs[0]);
1688
1689         sfc_adapter_unlock(sa);
1690
1691         sfc_log_init(sa, "done");
1692         return 0;
1693
1694 fail_attach:
1695         sfc_eth_dev_clear_ops(dev);
1696
1697 fail_set_ops:
1698         sfc_unprobe(sa);
1699
1700 fail_probe:
1701         sfc_adapter_unlock(sa);
1702         sfc_adapter_lock_fini(sa);
1703         rte_free(dev->data->mac_addrs);
1704         dev->data->mac_addrs = NULL;
1705
1706 fail_mac_addrs:
1707 fail_kvarg_debug_init:
1708         sfc_kvargs_cleanup(sa);
1709
1710 fail_kvargs_parse:
1711         sfc_log_init(sa, "failed %d", rc);
1712         SFC_ASSERT(rc > 0);
1713         return -rc;
1714 }
1715
1716 static int
1717 sfc_eth_dev_uninit(struct rte_eth_dev *dev)
1718 {
1719         struct sfc_adapter *sa;
1720
1721         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
1722                 sfc_eth_dev_secondary_clear_ops(dev);
1723                 return 0;
1724         }
1725
1726         sa = dev->data->dev_private;
1727         sfc_log_init(sa, "entry");
1728
1729         sfc_adapter_lock(sa);
1730
1731         sfc_eth_dev_clear_ops(dev);
1732
1733         sfc_detach(sa);
1734         sfc_unprobe(sa);
1735
1736         rte_free(dev->data->mac_addrs);
1737         dev->data->mac_addrs = NULL;
1738
1739         sfc_kvargs_cleanup(sa);
1740
1741         sfc_adapter_unlock(sa);
1742         sfc_adapter_lock_fini(sa);
1743
1744         sfc_log_init(sa, "done");
1745
1746         /* Required for logging, so cleanup last */
1747         sa->eth_dev = NULL;
1748         return 0;
1749 }
1750
1751 static const struct rte_pci_id pci_id_sfc_efx_map[] = {
1752         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) },
1753         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE_VF) },
1754         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) },
1755         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT_VF) },
1756         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) },
1757         { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD_VF) },
1758         { .vendor_id = 0 /* sentinel */ }
1759 };
1760
1761 static int sfc_eth_dev_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1762         struct rte_pci_device *pci_dev)
1763 {
1764         return rte_eth_dev_pci_generic_probe(pci_dev,
1765                 sizeof(struct sfc_adapter), sfc_eth_dev_init);
1766 }
1767
1768 static int sfc_eth_dev_pci_remove(struct rte_pci_device *pci_dev)
1769 {
1770         return rte_eth_dev_pci_generic_remove(pci_dev, sfc_eth_dev_uninit);
1771 }
1772
1773 static struct rte_pci_driver sfc_efx_pmd = {
1774         .id_table = pci_id_sfc_efx_map,
1775         .drv_flags =
1776                 RTE_PCI_DRV_INTR_LSC |
1777                 RTE_PCI_DRV_NEED_MAPPING,
1778         .probe = sfc_eth_dev_pci_probe,
1779         .remove = sfc_eth_dev_pci_remove,
1780 };
1781
1782 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd);
1783 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map);
1784 RTE_PMD_REGISTER_KMOD_DEP(net_sfc_efx, "* igb_uio | uio_pci_generic | vfio-pci");
1785 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx,
1786         SFC_KVARG_RX_DATAPATH "=" SFC_KVARG_VALUES_RX_DATAPATH " "
1787         SFC_KVARG_TX_DATAPATH "=" SFC_KVARG_VALUES_TX_DATAPATH " "
1788         SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " "
1789         SFC_KVARG_STATS_UPDATE_PERIOD_MS "=<long> "
1790         SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " "
1791         SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL);