drivers/net/enic/enic_ethdev.c

   1 /*
   2  * Copyright 2008-2014 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  *
   5  * Copyright (c) 2014, Cisco Systems, Inc.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  * notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  * notice, this list of conditions and the following disclaimer in
  17  * the documentation and/or other materials provided with the
  18  * distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  23  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  24  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  26  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  28  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  31  * POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  */
  34
  35 #include <stdio.h>
  36 #include <stdint.h>
  37
  38 #include <rte_dev.h>
  39 #include <rte_pci.h>
  40 #include <rte_bus_pci.h>
  41 #include <rte_ethdev.h>
  42 #include <rte_ethdev_pci.h>
  43 #include <rte_kvargs.h>
  44 #include <rte_string_fns.h>
  45
  46 #include "vnic_intr.h"
  47 #include "vnic_cq.h"
  48 #include "vnic_wq.h"
  49 #include "vnic_rq.h"
  50 #include "vnic_enet.h"
  51 #include "enic.h"
  52
  53 #ifdef RTE_LIBRTE_ENIC_DEBUG
  54 #define ENICPMD_FUNC_TRACE() \
  55         RTE_LOG(DEBUG, PMD, "ENICPMD trace: %s\n", __func__)
  56 #else
  57 #define ENICPMD_FUNC_TRACE() (void)0
  58 #endif
  59
  60 /*
  61  * The set of PCI devices this driver supports
  62  */
  63 #define CISCO_PCI_VENDOR_ID 0x1137
  64 static const struct rte_pci_id pci_id_enic_map[] = {
  65         { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET) },
  66         { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) },
  67         {.vendor_id = 0, /* sentinel */},
  68 };
  69
  70 #define ENIC_DEVARG_IG_VLAN_REWRITE "ig-vlan-rewrite"
  71
  72 static int
  73 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
  74                         enum rte_filter_op filter_op, void *arg)
  75 {
  76         struct enic *enic = pmd_priv(eth_dev);
  77         int ret = 0;
  78
  79         ENICPMD_FUNC_TRACE();
  80         if (filter_op == RTE_ETH_FILTER_NOP)
  81                 return 0;
  82
  83         if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
  84                 return -EINVAL;
  85
  86         switch (filter_op) {
  87         case RTE_ETH_FILTER_ADD:
  88         case RTE_ETH_FILTER_UPDATE:
  89                 ret = enic_fdir_add_fltr(enic,
  90                         (struct rte_eth_fdir_filter *)arg);
  91                 break;
  92
  93         case RTE_ETH_FILTER_DELETE:
  94                 ret = enic_fdir_del_fltr(enic,
  95                         (struct rte_eth_fdir_filter *)arg);
  96                 break;
  97
  98         case RTE_ETH_FILTER_STATS:
  99                 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
 100                 break;
 101
 102         case RTE_ETH_FILTER_FLUSH:
 103                 dev_warning(enic, "unsupported operation %u", filter_op);
 104                 ret = -ENOTSUP;
 105                 break;
 106         case RTE_ETH_FILTER_INFO:
 107                 enic_fdir_info_get(enic, (struct rte_eth_fdir_info *)arg);
 108                 break;
 109         default:
 110                 dev_err(enic, "unknown operation %u", filter_op);
 111                 ret = -EINVAL;
 112                 break;
 113         }
 114         return ret;
 115 }
 116
 117 static int
 118 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
 119                      enum rte_filter_type filter_type,
 120                      enum rte_filter_op filter_op,
 121                      void *arg)
 122 {
 123         int ret = 0;
 124
 125         ENICPMD_FUNC_TRACE();
 126
 127         switch (filter_type) {
 128         case RTE_ETH_FILTER_GENERIC:
 129                 if (filter_op != RTE_ETH_FILTER_GET)
 130                         return -EINVAL;
 131                 *(const void **)arg = &enic_flow_ops;
 132                 break;
 133         case RTE_ETH_FILTER_FDIR:
 134                 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
 135                 break;
 136         default:
 137                 dev_warning(enic, "Filter type (%d) not supported",
 138                         filter_type);
 139                 ret = -EINVAL;
 140                 break;
 141         }
 142
 143         return ret;
 144 }
 145
 146 static void enicpmd_dev_tx_queue_release(void *txq)
 147 {
 148         ENICPMD_FUNC_TRACE();
 149
 150         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 151                 return;
 152
 153         enic_free_wq(txq);
 154 }
 155
 156 static int enicpmd_dev_setup_intr(struct enic *enic)
 157 {
 158         int ret;
 159         unsigned int index;
 160
 161         ENICPMD_FUNC_TRACE();
 162
 163         /* Are we done with the init of all the queues? */
 164         for (index = 0; index < enic->cq_count; index++) {
 165                 if (!enic->cq[index].ctrl)
 166                         break;
 167         }
 168         if (enic->cq_count != index)
 169                 return 0;
 170         for (index = 0; index < enic->wq_count; index++) {
 171                 if (!enic->wq[index].ctrl)
 172                         break;
 173         }
 174         if (enic->wq_count != index)
 175                 return 0;
 176         /* check start of packet (SOP) RQs only in case scatter is disabled. */
 177         for (index = 0; index < enic->rq_count; index++) {
 178                 if (!enic->rq[enic_rte_rq_idx_to_sop_idx(index)].ctrl)
 179                         break;
 180         }
 181         if (enic->rq_count != index)
 182                 return 0;
 183
 184         ret = enic_alloc_intr_resources(enic);
 185         if (ret) {
 186                 dev_err(enic, "alloc intr failed\n");
 187                 return ret;
 188         }
 189         enic_init_vnic_resources(enic);
 190
 191         ret = enic_setup_finish(enic);
 192         if (ret)
 193                 dev_err(enic, "setup could not be finished\n");
 194
 195         return ret;
 196 }
 197
 198 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
 199         uint16_t queue_idx,
 200         uint16_t nb_desc,
 201         unsigned int socket_id,
 202         __rte_unused const struct rte_eth_txconf *tx_conf)
 203 {
 204         int ret;
 205         struct enic *enic = pmd_priv(eth_dev);
 206
 207         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 208                 return -E_RTE_SECONDARY;
 209
 210         ENICPMD_FUNC_TRACE();
 211         RTE_ASSERT(queue_idx < enic->conf_wq_count);
 212         eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
 213
 214         ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
 215         if (ret) {
 216                 dev_err(enic, "error in allocating wq\n");
 217                 return ret;
 218         }
 219
 220         return enicpmd_dev_setup_intr(enic);
 221 }
 222
 223 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
 224         uint16_t queue_idx)
 225 {
 226         struct enic *enic = pmd_priv(eth_dev);
 227
 228         ENICPMD_FUNC_TRACE();
 229
 230         enic_start_wq(enic, queue_idx);
 231
 232         return 0;
 233 }
 234
 235 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
 236         uint16_t queue_idx)
 237 {
 238         int ret;
 239         struct enic *enic = pmd_priv(eth_dev);
 240
 241         ENICPMD_FUNC_TRACE();
 242
 243         ret = enic_stop_wq(enic, queue_idx);
 244         if (ret)
 245                 dev_err(enic, "error in stopping wq %d\n", queue_idx);
 246
 247         return ret;
 248 }
 249
 250 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
 251         uint16_t queue_idx)
 252 {
 253         struct enic *enic = pmd_priv(eth_dev);
 254
 255         ENICPMD_FUNC_TRACE();
 256
 257         enic_start_rq(enic, queue_idx);
 258
 259         return 0;
 260 }
 261
 262 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
 263         uint16_t queue_idx)
 264 {
 265         int ret;
 266         struct enic *enic = pmd_priv(eth_dev);
 267
 268         ENICPMD_FUNC_TRACE();
 269
 270         ret = enic_stop_rq(enic, queue_idx);
 271         if (ret)
 272                 dev_err(enic, "error in stopping rq %d\n", queue_idx);
 273
 274         return ret;
 275 }
 276
 277 static void enicpmd_dev_rx_queue_release(void *rxq)
 278 {
 279         ENICPMD_FUNC_TRACE();
 280
 281         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 282                 return;
 283
 284         enic_free_rq(rxq);
 285 }
 286
 287 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
 288                                            uint16_t rx_queue_id)
 289 {
 290         struct enic *enic = pmd_priv(dev);
 291         uint32_t queue_count = 0;
 292         struct vnic_cq *cq;
 293         uint32_t cq_tail;
 294         uint16_t cq_idx;
 295         int rq_num;
 296
 297         rq_num = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
 298         cq = &enic->cq[enic_cq_rq(enic, rq_num)];
 299         cq_idx = cq->to_clean;
 300
 301         cq_tail = ioread32(&cq->ctrl->cq_tail);
 302
 303         if (cq_tail < cq_idx)
 304                 cq_tail += cq->ring.desc_count;
 305
 306         queue_count = cq_tail - cq_idx;
 307
 308         return queue_count;
 309 }
 310
 311 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
 312         uint16_t queue_idx,
 313         uint16_t nb_desc,
 314         unsigned int socket_id,
 315         const struct rte_eth_rxconf *rx_conf,
 316         struct rte_mempool *mp)
 317 {
 318         int ret;
 319         struct enic *enic = pmd_priv(eth_dev);
 320
 321         ENICPMD_FUNC_TRACE();
 322
 323         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 324                 return -E_RTE_SECONDARY;
 325         RTE_ASSERT(enic_rte_rq_idx_to_sop_idx(queue_idx) < enic->conf_rq_count);
 326         eth_dev->data->rx_queues[queue_idx] =
 327                 (void *)&enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
 328
 329         ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc,
 330                             rx_conf->rx_free_thresh);
 331         if (ret) {
 332                 dev_err(enic, "error in allocating rq\n");
 333                 return ret;
 334         }
 335
 336         return enicpmd_dev_setup_intr(enic);
 337 }
 338
 339 static int enicpmd_vlan_filter_set(struct rte_eth_dev *eth_dev,
 340         uint16_t vlan_id, int on)
 341 {
 342         struct enic *enic = pmd_priv(eth_dev);
 343         int err;
 344
 345         ENICPMD_FUNC_TRACE();
 346         if (on)
 347                 err = enic_add_vlan(enic, vlan_id);
 348         else
 349                 err = enic_del_vlan(enic, vlan_id);
 350         return err;
 351 }
 352
 353 static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 354 {
 355         struct enic *enic = pmd_priv(eth_dev);
 356
 357         ENICPMD_FUNC_TRACE();
 358
 359         if (mask & ETH_VLAN_STRIP_MASK) {
 360                 if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
 361                         enic->ig_vlan_strip_en = 1;
 362                 else
 363                         enic->ig_vlan_strip_en = 0;
 364         }
 365         enic_set_rss_nic_cfg(enic);
 366
 367
 368         if (mask & ETH_VLAN_FILTER_MASK) {
 369                 dev_warning(enic,
 370                         "Configuration of VLAN filter is not supported\n");
 371         }
 372
 373         if (mask & ETH_VLAN_EXTEND_MASK) {
 374                 dev_warning(enic,
 375                         "Configuration of extended VLAN is not supported\n");
 376         }
 377
 378         return 0;
 379 }
 380
 381 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
 382 {
 383         int ret;
 384         struct enic *enic = pmd_priv(eth_dev);
 385
 386         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 387                 return -E_RTE_SECONDARY;
 388
 389         ENICPMD_FUNC_TRACE();
 390         ret = enic_set_vnic_res(enic);
 391         if (ret) {
 392                 dev_err(enic, "Set vNIC resource num  failed, aborting\n");
 393                 return ret;
 394         }
 395
 396         if (eth_dev->data->dev_conf.rxmode.split_hdr_size &&
 397                 eth_dev->data->dev_conf.rxmode.header_split) {
 398                 /* Enable header-data-split */
 399                 enic_set_hdr_split_size(enic,
 400                         eth_dev->data->dev_conf.rxmode.split_hdr_size);
 401         }
 402
 403         enic->hw_ip_checksum = eth_dev->data->dev_conf.rxmode.hw_ip_checksum;
 404         ret = enicpmd_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK);
 405
 406         return ret;
 407 }
 408
 409 /* Start the device.
 410  * It returns 0 on success.
 411  */
 412 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
 413 {
 414         struct enic *enic = pmd_priv(eth_dev);
 415
 416         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 417                 return -E_RTE_SECONDARY;
 418
 419         ENICPMD_FUNC_TRACE();
 420         return enic_enable(enic);
 421 }
 422
 423 /*
 424  * Stop device: disable rx and tx functions to allow for reconfiguring.
 425  */
 426 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
 427 {
 428         struct rte_eth_link link;
 429         struct enic *enic = pmd_priv(eth_dev);
 430
 431         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 432                 return;
 433
 434         ENICPMD_FUNC_TRACE();
 435         enic_disable(enic);
 436         memset(&link, 0, sizeof(link));
 437         rte_atomic64_cmpset((uint64_t *)&eth_dev->data->dev_link,
 438                 *(uint64_t *)&eth_dev->data->dev_link,
 439                 *(uint64_t *)&link);
 440 }
 441
 442 /*
 443  * Stop device.
 444  */
 445 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
 446 {
 447         struct enic *enic = pmd_priv(eth_dev);
 448
 449         ENICPMD_FUNC_TRACE();
 450         enic_remove(enic);
 451 }
 452
 453 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
 454         __rte_unused int wait_to_complete)
 455 {
 456         struct enic *enic = pmd_priv(eth_dev);
 457
 458         ENICPMD_FUNC_TRACE();
 459         return enic_link_update(enic);
 460 }
 461
 462 static int enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
 463         struct rte_eth_stats *stats)
 464 {
 465         struct enic *enic = pmd_priv(eth_dev);
 466
 467         ENICPMD_FUNC_TRACE();
 468         return enic_dev_stats_get(enic, stats);
 469 }
 470
 471 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
 472 {
 473         struct enic *enic = pmd_priv(eth_dev);
 474
 475         ENICPMD_FUNC_TRACE();
 476         enic_dev_stats_clear(enic);
 477 }
 478
 479 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
 480         struct rte_eth_dev_info *device_info)
 481 {
 482         struct enic *enic = pmd_priv(eth_dev);
 483
 484         ENICPMD_FUNC_TRACE();
 485         device_info->pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 486         /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
 487         device_info->max_rx_queues = enic->conf_rq_count / 2;
 488         device_info->max_tx_queues = enic->conf_wq_count;
 489         device_info->min_rx_bufsize = ENIC_MIN_MTU;
 490         device_info->max_rx_pktlen = enic->max_mtu + ETHER_HDR_LEN + 4;
 491         device_info->max_mac_addrs = ENIC_MAX_MAC_ADDR;
 492         device_info->rx_offload_capa =
 493                 DEV_RX_OFFLOAD_VLAN_STRIP |
 494                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 495                 DEV_RX_OFFLOAD_UDP_CKSUM  |
 496                 DEV_RX_OFFLOAD_TCP_CKSUM;
 497         device_info->tx_offload_capa =
 498                 DEV_TX_OFFLOAD_VLAN_INSERT |
 499                 DEV_TX_OFFLOAD_IPV4_CKSUM  |
 500                 DEV_TX_OFFLOAD_UDP_CKSUM   |
 501                 DEV_TX_OFFLOAD_TCP_CKSUM   |
 502                 DEV_TX_OFFLOAD_TCP_TSO;
 503         device_info->default_rxconf = (struct rte_eth_rxconf) {
 504                 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
 505         };
 506 }
 507
 508 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 509 {
 510         static const uint32_t ptypes[] = {
 511                 RTE_PTYPE_L2_ETHER,
 512                 RTE_PTYPE_L2_ETHER_VLAN,
 513                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 514                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 515                 RTE_PTYPE_L4_TCP,
 516                 RTE_PTYPE_L4_UDP,
 517                 RTE_PTYPE_L4_FRAG,
 518                 RTE_PTYPE_L4_NONFRAG,
 519                 RTE_PTYPE_UNKNOWN
 520         };
 521
 522         if (dev->rx_pkt_burst == enic_recv_pkts)
 523                 return ptypes;
 524         return NULL;
 525 }
 526
 527 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
 528 {
 529         struct enic *enic = pmd_priv(eth_dev);
 530
 531         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 532                 return;
 533
 534         ENICPMD_FUNC_TRACE();
 535
 536         enic->promisc = 1;
 537         enic_add_packet_filter(enic);
 538 }
 539
 540 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
 541 {
 542         struct enic *enic = pmd_priv(eth_dev);
 543
 544         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 545                 return;
 546
 547         ENICPMD_FUNC_TRACE();
 548         enic->promisc = 0;
 549         enic_add_packet_filter(enic);
 550 }
 551
 552 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
 553 {
 554         struct enic *enic = pmd_priv(eth_dev);
 555
 556         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 557                 return;
 558
 559         ENICPMD_FUNC_TRACE();
 560         enic->allmulti = 1;
 561         enic_add_packet_filter(enic);
 562 }
 563
 564 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
 565 {
 566         struct enic *enic = pmd_priv(eth_dev);
 567
 568         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 569                 return;
 570
 571         ENICPMD_FUNC_TRACE();
 572         enic->allmulti = 0;
 573         enic_add_packet_filter(enic);
 574 }
 575
 576 static int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
 577         struct ether_addr *mac_addr,
 578         __rte_unused uint32_t index, __rte_unused uint32_t pool)
 579 {
 580         struct enic *enic = pmd_priv(eth_dev);
 581
 582         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 583                 return -E_RTE_SECONDARY;
 584
 585         ENICPMD_FUNC_TRACE();
 586         return enic_set_mac_address(enic, mac_addr->addr_bytes);
 587 }
 588
 589 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
 590 {
 591         struct enic *enic = pmd_priv(eth_dev);
 592
 593         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 594                 return;
 595
 596         ENICPMD_FUNC_TRACE();
 597         enic_del_mac_address(enic, index);
 598 }
 599
 600 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
 601 {
 602         struct enic *enic = pmd_priv(eth_dev);
 603
 604         ENICPMD_FUNC_TRACE();
 605         return enic_set_mtu(enic, mtu);
 606 }
 607
 608 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
 609         .dev_configure        = enicpmd_dev_configure,
 610         .dev_start            = enicpmd_dev_start,
 611         .dev_stop             = enicpmd_dev_stop,
 612         .dev_set_link_up      = NULL,
 613         .dev_set_link_down    = NULL,
 614         .dev_close            = enicpmd_dev_close,
 615         .promiscuous_enable   = enicpmd_dev_promiscuous_enable,
 616         .promiscuous_disable  = enicpmd_dev_promiscuous_disable,
 617         .allmulticast_enable  = enicpmd_dev_allmulticast_enable,
 618         .allmulticast_disable = enicpmd_dev_allmulticast_disable,
 619         .link_update          = enicpmd_dev_link_update,
 620         .stats_get            = enicpmd_dev_stats_get,
 621         .stats_reset          = enicpmd_dev_stats_reset,
 622         .queue_stats_mapping_set = NULL,
 623         .dev_infos_get        = enicpmd_dev_info_get,
 624         .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
 625         .mtu_set              = enicpmd_mtu_set,
 626         .vlan_filter_set      = enicpmd_vlan_filter_set,
 627         .vlan_tpid_set        = NULL,
 628         .vlan_offload_set     = enicpmd_vlan_offload_set,
 629         .vlan_strip_queue_set = NULL,
 630         .rx_queue_start       = enicpmd_dev_rx_queue_start,
 631         .rx_queue_stop        = enicpmd_dev_rx_queue_stop,
 632         .tx_queue_start       = enicpmd_dev_tx_queue_start,
 633         .tx_queue_stop        = enicpmd_dev_tx_queue_stop,
 634         .rx_queue_setup       = enicpmd_dev_rx_queue_setup,
 635         .rx_queue_release     = enicpmd_dev_rx_queue_release,
 636         .rx_queue_count       = enicpmd_dev_rx_queue_count,
 637         .rx_descriptor_done   = NULL,
 638         .tx_queue_setup       = enicpmd_dev_tx_queue_setup,
 639         .tx_queue_release     = enicpmd_dev_tx_queue_release,
 640         .dev_led_on           = NULL,
 641         .dev_led_off          = NULL,
 642         .flow_ctrl_get        = NULL,
 643         .flow_ctrl_set        = NULL,
 644         .priority_flow_ctrl_set = NULL,
 645         .mac_addr_add         = enicpmd_add_mac_addr,
 646         .mac_addr_remove      = enicpmd_remove_mac_addr,
 647         .filter_ctrl          = enicpmd_dev_filter_ctrl,
 648 };
 649
 650 static int enic_parse_ig_vlan_rewrite(__rte_unused const char *key,
 651                                       const char *value,
 652                                       void *opaque)
 653 {
 654         struct enic *enic;
 655
 656         enic = (struct enic *)opaque;
 657         if (strcmp(value, "trunk") == 0) {
 658                 /* Trunk mode: always tag */
 659                 enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_DEFAULT_TRUNK;
 660         } else if (strcmp(value, "untag") == 0) {
 661                 /* Untag default VLAN mode: untag if VLAN = default VLAN */
 662                 enic->ig_vlan_rewrite_mode =
 663                         IG_VLAN_REWRITE_MODE_UNTAG_DEFAULT_VLAN;
 664         } else if (strcmp(value, "priority") == 0) {
 665                 /*
 666                  * Priority-tag default VLAN mode: priority tag (VLAN header
 667                  * with ID=0) if VLAN = default
 668                  */
 669                 enic->ig_vlan_rewrite_mode =
 670                         IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN;
 671         } else if (strcmp(value, "pass") == 0) {
 672                 /* Pass through mode: do not touch tags */
 673                 enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
 674         } else {
 675                 dev_err(enic, "Invalid value for " ENIC_DEVARG_IG_VLAN_REWRITE
 676                         ": expected=trunk|untag|priority|pass given=%s\n",
 677                         value);
 678                 return -EINVAL;
 679         }
 680         return 0;
 681 }
 682
 683 static int enic_check_devargs(struct rte_eth_dev *dev)
 684 {
 685         static const char *const valid_keys[] = {
 686                 ENIC_DEVARG_IG_VLAN_REWRITE,
 687                 NULL};
 688         struct enic *enic = pmd_priv(dev);
 689         struct rte_kvargs *kvlist;
 690
 691         ENICPMD_FUNC_TRACE();
 692
 693         enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
 694         if (!dev->device->devargs)
 695                 return 0;
 696         kvlist = rte_kvargs_parse(dev->device->devargs->args, valid_keys);
 697         if (!kvlist)
 698                 return -EINVAL;
 699         if (rte_kvargs_process(kvlist, ENIC_DEVARG_IG_VLAN_REWRITE,
 700                                enic_parse_ig_vlan_rewrite, enic) < 0) {
 701                 rte_kvargs_free(kvlist);
 702                 return -EINVAL;
 703         }
 704         rte_kvargs_free(kvlist);
 705         return 0;
 706 }
 707
 708 struct enic *enicpmd_list_head = NULL;
 709 /* Initialize the driver
 710  * It returns 0 on success.
 711  */
 712 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
 713 {
 714         struct rte_pci_device *pdev;
 715         struct rte_pci_addr *addr;
 716         struct enic *enic = pmd_priv(eth_dev);
 717         int err;
 718
 719         ENICPMD_FUNC_TRACE();
 720
 721         enic->port_id = eth_dev->data->port_id;
 722         enic->rte_dev = eth_dev;
 723         eth_dev->dev_ops = &enicpmd_eth_dev_ops;
 724         eth_dev->rx_pkt_burst = &enic_recv_pkts;
 725         eth_dev->tx_pkt_burst = &enic_xmit_pkts;
 726
 727         pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
 728         rte_eth_copy_pci_info(eth_dev, pdev);
 729         enic->pdev = pdev;
 730         addr = &pdev->addr;
 731
 732         snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
 733                 addr->domain, addr->bus, addr->devid, addr->function);
 734
 735         err = enic_check_devargs(eth_dev);
 736         if (err)
 737                 return err;
 738         return enic_probe(enic);
 739 }
 740
 741 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 742         struct rte_pci_device *pci_dev)
 743 {
 744         return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
 745                 eth_enicpmd_dev_init);
 746 }
 747
 748 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
 749 {
 750         return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
 751 }
 752
 753 static struct rte_pci_driver rte_enic_pmd = {
 754         .id_table = pci_id_enic_map,
 755         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 756         .probe = eth_enic_pci_probe,
 757         .remove = eth_enic_pci_remove,
 758 };
 759
 760 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
 761 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
 762 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");
 763 RTE_PMD_REGISTER_PARAM_STRING(net_enic,
 764         ENIC_DEVARG_IG_VLAN_REWRITE "=trunk|untag|priority|pass");