drivers/net/enic/enic_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2008-2017 Cisco Systems, Inc.  All rights reserved.
   3  * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4  */
   5
   6 #include <stdio.h>
   7 #include <stdint.h>
   8
   9 #include <rte_dev.h>
  10 #include <rte_pci.h>
  11 #include <rte_bus_pci.h>
  12 #include <rte_ethdev_driver.h>
  13 #include <rte_ethdev_pci.h>
  14 #include <rte_kvargs.h>
  15 #include <rte_string_fns.h>
  16
  17 #include "vnic_intr.h"
  18 #include "vnic_cq.h"
  19 #include "vnic_wq.h"
  20 #include "vnic_rq.h"
  21 #include "vnic_enet.h"
  22 #include "enic.h"
  23
  24 int enicpmd_logtype_init;
  25 int enicpmd_logtype_flow;
  26
  27 #define ENICPMD_FUNC_TRACE() PMD_INIT_LOG(DEBUG, " >>")
  28
  29 /*
  30  * The set of PCI devices this driver supports
  31  */
  32 #define CISCO_PCI_VENDOR_ID 0x1137
  33 static const struct rte_pci_id pci_id_enic_map[] = {
  34         { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET) },
  35         { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) },
  36         {.vendor_id = 0, /* sentinel */},
  37 };
  38
  39 #define ENIC_DEVARG_DISABLE_OVERLAY "disable-overlay"
  40 #define ENIC_DEVARG_ENABLE_AVX2_RX "enable-avx2-rx"
  41 #define ENIC_DEVARG_IG_VLAN_REWRITE "ig-vlan-rewrite"
  42
  43 RTE_INIT(enicpmd_init_log)
  44 {
  45         enicpmd_logtype_init = rte_log_register("pmd.net.enic.init");
  46         if (enicpmd_logtype_init >= 0)
  47                 rte_log_set_level(enicpmd_logtype_init, RTE_LOG_NOTICE);
  48         enicpmd_logtype_flow = rte_log_register("pmd.net.enic.flow");
  49         if (enicpmd_logtype_flow >= 0)
  50                 rte_log_set_level(enicpmd_logtype_flow, RTE_LOG_NOTICE);
  51 }
  52
  53 static int
  54 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
  55                         enum rte_filter_op filter_op, void *arg)
  56 {
  57         struct enic *enic = pmd_priv(eth_dev);
  58         int ret = 0;
  59
  60         ENICPMD_FUNC_TRACE();
  61         if (filter_op == RTE_ETH_FILTER_NOP)
  62                 return 0;
  63
  64         if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
  65                 return -EINVAL;
  66
  67         switch (filter_op) {
  68         case RTE_ETH_FILTER_ADD:
  69         case RTE_ETH_FILTER_UPDATE:
  70                 ret = enic_fdir_add_fltr(enic,
  71                         (struct rte_eth_fdir_filter *)arg);
  72                 break;
  73
  74         case RTE_ETH_FILTER_DELETE:
  75                 ret = enic_fdir_del_fltr(enic,
  76                         (struct rte_eth_fdir_filter *)arg);
  77                 break;
  78
  79         case RTE_ETH_FILTER_STATS:
  80                 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
  81                 break;
  82
  83         case RTE_ETH_FILTER_FLUSH:
  84                 dev_warning(enic, "unsupported operation %u", filter_op);
  85                 ret = -ENOTSUP;
  86                 break;
  87         case RTE_ETH_FILTER_INFO:
  88                 enic_fdir_info_get(enic, (struct rte_eth_fdir_info *)arg);
  89                 break;
  90         default:
  91                 dev_err(enic, "unknown operation %u", filter_op);
  92                 ret = -EINVAL;
  93                 break;
  94         }
  95         return ret;
  96 }
  97
  98 static int
  99 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
 100                      enum rte_filter_type filter_type,
 101                      enum rte_filter_op filter_op,
 102                      void *arg)
 103 {
 104         int ret = 0;
 105
 106         ENICPMD_FUNC_TRACE();
 107
 108         switch (filter_type) {
 109         case RTE_ETH_FILTER_GENERIC:
 110                 if (filter_op != RTE_ETH_FILTER_GET)
 111                         return -EINVAL;
 112                 *(const void **)arg = &enic_flow_ops;
 113                 break;
 114         case RTE_ETH_FILTER_FDIR:
 115                 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
 116                 break;
 117         default:
 118                 dev_warning(enic, "Filter type (%d) not supported",
 119                         filter_type);
 120                 ret = -EINVAL;
 121                 break;
 122         }
 123
 124         return ret;
 125 }
 126
 127 static void enicpmd_dev_tx_queue_release(void *txq)
 128 {
 129         ENICPMD_FUNC_TRACE();
 130
 131         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 132                 return;
 133
 134         enic_free_wq(txq);
 135 }
 136
 137 static int enicpmd_dev_setup_intr(struct enic *enic)
 138 {
 139         int ret;
 140         unsigned int index;
 141
 142         ENICPMD_FUNC_TRACE();
 143
 144         /* Are we done with the init of all the queues? */
 145         for (index = 0; index < enic->cq_count; index++) {
 146                 if (!enic->cq[index].ctrl)
 147                         break;
 148         }
 149         if (enic->cq_count != index)
 150                 return 0;
 151         for (index = 0; index < enic->wq_count; index++) {
 152                 if (!enic->wq[index].ctrl)
 153                         break;
 154         }
 155         if (enic->wq_count != index)
 156                 return 0;
 157         /* check start of packet (SOP) RQs only in case scatter is disabled. */
 158         for (index = 0; index < enic->rq_count; index++) {
 159                 if (!enic->rq[enic_rte_rq_idx_to_sop_idx(index)].ctrl)
 160                         break;
 161         }
 162         if (enic->rq_count != index)
 163                 return 0;
 164
 165         ret = enic_alloc_intr_resources(enic);
 166         if (ret) {
 167                 dev_err(enic, "alloc intr failed\n");
 168                 return ret;
 169         }
 170         enic_init_vnic_resources(enic);
 171
 172         ret = enic_setup_finish(enic);
 173         if (ret)
 174                 dev_err(enic, "setup could not be finished\n");
 175
 176         return ret;
 177 }
 178
 179 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
 180         uint16_t queue_idx,
 181         uint16_t nb_desc,
 182         unsigned int socket_id,
 183         const struct rte_eth_txconf *tx_conf)
 184 {
 185         int ret;
 186         struct enic *enic = pmd_priv(eth_dev);
 187         struct vnic_wq *wq;
 188
 189         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 190                 return -E_RTE_SECONDARY;
 191
 192         ENICPMD_FUNC_TRACE();
 193         RTE_ASSERT(queue_idx < enic->conf_wq_count);
 194         wq = &enic->wq[queue_idx];
 195         wq->offloads = tx_conf->offloads |
 196                 eth_dev->data->dev_conf.txmode.offloads;
 197         eth_dev->data->tx_queues[queue_idx] = (void *)wq;
 198
 199         ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
 200         if (ret) {
 201                 dev_err(enic, "error in allocating wq\n");
 202                 return ret;
 203         }
 204
 205         return enicpmd_dev_setup_intr(enic);
 206 }
 207
 208 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
 209         uint16_t queue_idx)
 210 {
 211         struct enic *enic = pmd_priv(eth_dev);
 212
 213         ENICPMD_FUNC_TRACE();
 214
 215         enic_start_wq(enic, queue_idx);
 216
 217         return 0;
 218 }
 219
 220 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
 221         uint16_t queue_idx)
 222 {
 223         int ret;
 224         struct enic *enic = pmd_priv(eth_dev);
 225
 226         ENICPMD_FUNC_TRACE();
 227
 228         ret = enic_stop_wq(enic, queue_idx);
 229         if (ret)
 230                 dev_err(enic, "error in stopping wq %d\n", queue_idx);
 231
 232         return ret;
 233 }
 234
 235 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
 236         uint16_t queue_idx)
 237 {
 238         struct enic *enic = pmd_priv(eth_dev);
 239
 240         ENICPMD_FUNC_TRACE();
 241
 242         enic_start_rq(enic, queue_idx);
 243
 244         return 0;
 245 }
 246
 247 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
 248         uint16_t queue_idx)
 249 {
 250         int ret;
 251         struct enic *enic = pmd_priv(eth_dev);
 252
 253         ENICPMD_FUNC_TRACE();
 254
 255         ret = enic_stop_rq(enic, queue_idx);
 256         if (ret)
 257                 dev_err(enic, "error in stopping rq %d\n", queue_idx);
 258
 259         return ret;
 260 }
 261
 262 static void enicpmd_dev_rx_queue_release(void *rxq)
 263 {
 264         ENICPMD_FUNC_TRACE();
 265
 266         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 267                 return;
 268
 269         enic_free_rq(rxq);
 270 }
 271
 272 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
 273                                            uint16_t rx_queue_id)
 274 {
 275         struct enic *enic = pmd_priv(dev);
 276         uint32_t queue_count = 0;
 277         struct vnic_cq *cq;
 278         uint32_t cq_tail;
 279         uint16_t cq_idx;
 280         int rq_num;
 281
 282         rq_num = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
 283         cq = &enic->cq[enic_cq_rq(enic, rq_num)];
 284         cq_idx = cq->to_clean;
 285
 286         cq_tail = ioread32(&cq->ctrl->cq_tail);
 287
 288         if (cq_tail < cq_idx)
 289                 cq_tail += cq->ring.desc_count;
 290
 291         queue_count = cq_tail - cq_idx;
 292
 293         return queue_count;
 294 }
 295
 296 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
 297         uint16_t queue_idx,
 298         uint16_t nb_desc,
 299         unsigned int socket_id,
 300         const struct rte_eth_rxconf *rx_conf,
 301         struct rte_mempool *mp)
 302 {
 303         int ret;
 304         struct enic *enic = pmd_priv(eth_dev);
 305
 306         ENICPMD_FUNC_TRACE();
 307
 308         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 309                 return -E_RTE_SECONDARY;
 310         RTE_ASSERT(enic_rte_rq_idx_to_sop_idx(queue_idx) < enic->conf_rq_count);
 311         eth_dev->data->rx_queues[queue_idx] =
 312                 (void *)&enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
 313
 314         ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc,
 315                             rx_conf->rx_free_thresh);
 316         if (ret) {
 317                 dev_err(enic, "error in allocating rq\n");
 318                 return ret;
 319         }
 320
 321         return enicpmd_dev_setup_intr(enic);
 322 }
 323
 324 static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 325 {
 326         struct enic *enic = pmd_priv(eth_dev);
 327         uint64_t offloads;
 328
 329         ENICPMD_FUNC_TRACE();
 330
 331         offloads = eth_dev->data->dev_conf.rxmode.offloads;
 332         if (mask & ETH_VLAN_STRIP_MASK) {
 333                 if (offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 334                         enic->ig_vlan_strip_en = 1;
 335                 else
 336                         enic->ig_vlan_strip_en = 0;
 337         }
 338
 339         if ((mask & ETH_VLAN_FILTER_MASK) &&
 340             (offloads & DEV_RX_OFFLOAD_VLAN_FILTER)) {
 341                 dev_warning(enic,
 342                         "Configuration of VLAN filter is not supported\n");
 343         }
 344
 345         if ((mask & ETH_VLAN_EXTEND_MASK) &&
 346             (offloads & DEV_RX_OFFLOAD_VLAN_EXTEND)) {
 347                 dev_warning(enic,
 348                         "Configuration of extended VLAN is not supported\n");
 349         }
 350
 351         return enic_set_vlan_strip(enic);
 352 }
 353
 354 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
 355 {
 356         int ret;
 357         int mask;
 358         struct enic *enic = pmd_priv(eth_dev);
 359
 360         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 361                 return -E_RTE_SECONDARY;
 362
 363         ENICPMD_FUNC_TRACE();
 364         ret = enic_set_vnic_res(enic);
 365         if (ret) {
 366                 dev_err(enic, "Set vNIC resource num  failed, aborting\n");
 367                 return ret;
 368         }
 369
 370         enic->mc_count = 0;
 371         enic->hw_ip_checksum = !!(eth_dev->data->dev_conf.rxmode.offloads &
 372                                   DEV_RX_OFFLOAD_CHECKSUM);
 373         /* All vlan offload masks to apply the current settings */
 374         mask = ETH_VLAN_STRIP_MASK |
 375                 ETH_VLAN_FILTER_MASK |
 376                 ETH_VLAN_EXTEND_MASK;
 377         ret = enicpmd_vlan_offload_set(eth_dev, mask);
 378         if (ret) {
 379                 dev_err(enic, "Failed to configure VLAN offloads\n");
 380                 return ret;
 381         }
 382         /*
 383          * Initialize RSS with the default reta and key. If the user key is
 384          * given (rx_adv_conf.rss_conf.rss_key), will use that instead of the
 385          * default key.
 386          */
 387         return enic_init_rss_nic_cfg(enic);
 388 }
 389
 390 /* Start the device.
 391  * It returns 0 on success.
 392  */
 393 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
 394 {
 395         struct enic *enic = pmd_priv(eth_dev);
 396
 397         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 398                 return -E_RTE_SECONDARY;
 399
 400         ENICPMD_FUNC_TRACE();
 401         return enic_enable(enic);
 402 }
 403
 404 /*
 405  * Stop device: disable rx and tx functions to allow for reconfiguring.
 406  */
 407 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
 408 {
 409         struct rte_eth_link link;
 410         struct enic *enic = pmd_priv(eth_dev);
 411
 412         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 413                 return;
 414
 415         ENICPMD_FUNC_TRACE();
 416         enic_disable(enic);
 417
 418         memset(&link, 0, sizeof(link));
 419         rte_eth_linkstatus_set(eth_dev, &link);
 420 }
 421
 422 /*
 423  * Stop device.
 424  */
 425 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
 426 {
 427         struct enic *enic = pmd_priv(eth_dev);
 428
 429         ENICPMD_FUNC_TRACE();
 430         enic_remove(enic);
 431 }
 432
 433 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
 434         __rte_unused int wait_to_complete)
 435 {
 436         struct enic *enic = pmd_priv(eth_dev);
 437
 438         ENICPMD_FUNC_TRACE();
 439         return enic_link_update(enic);
 440 }
 441
 442 static int enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
 443         struct rte_eth_stats *stats)
 444 {
 445         struct enic *enic = pmd_priv(eth_dev);
 446
 447         ENICPMD_FUNC_TRACE();
 448         return enic_dev_stats_get(enic, stats);
 449 }
 450
 451 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
 452 {
 453         struct enic *enic = pmd_priv(eth_dev);
 454
 455         ENICPMD_FUNC_TRACE();
 456         enic_dev_stats_clear(enic);
 457 }
 458
 459 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
 460         struct rte_eth_dev_info *device_info)
 461 {
 462         struct enic *enic = pmd_priv(eth_dev);
 463
 464         ENICPMD_FUNC_TRACE();
 465         /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
 466         device_info->max_rx_queues = enic->conf_rq_count / 2;
 467         device_info->max_tx_queues = enic->conf_wq_count;
 468         device_info->min_rx_bufsize = ENIC_MIN_MTU;
 469         /* "Max" mtu is not a typo. HW receives packet sizes up to the
 470          * max mtu regardless of the current mtu (vNIC's mtu). vNIC mtu is
 471          * a hint to the driver to size receive buffers accordingly so that
 472          * larger-than-vnic-mtu packets get truncated.. For DPDK, we let
 473          * the user decide the buffer size via rxmode.max_rx_pkt_len, basically
 474          * ignoring vNIC mtu.
 475          */
 476         device_info->max_rx_pktlen = enic_mtu_to_max_rx_pktlen(enic->max_mtu);
 477         device_info->max_mac_addrs = ENIC_UNICAST_PERFECT_FILTERS;
 478         device_info->rx_offload_capa = enic->rx_offload_capa;
 479         device_info->tx_offload_capa = enic->tx_offload_capa;
 480         device_info->tx_queue_offload_capa = enic->tx_queue_offload_capa;
 481         device_info->default_rxconf = (struct rte_eth_rxconf) {
 482                 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
 483         };
 484         device_info->reta_size = enic->reta_size;
 485         device_info->hash_key_size = enic->hash_key_size;
 486         device_info->flow_type_rss_offloads = enic->flow_type_rss_offloads;
 487         device_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 488                 .nb_max = enic->config.rq_desc_count,
 489                 .nb_min = ENIC_MIN_RQ_DESCS,
 490                 .nb_align = ENIC_ALIGN_DESCS,
 491         };
 492         device_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 493                 .nb_max = enic->config.wq_desc_count,
 494                 .nb_min = ENIC_MIN_WQ_DESCS,
 495                 .nb_align = ENIC_ALIGN_DESCS,
 496                 .nb_seg_max = ENIC_TX_XMIT_MAX,
 497                 .nb_mtu_seg_max = ENIC_NON_TSO_MAX_DESC,
 498         };
 499         device_info->default_rxportconf = (struct rte_eth_dev_portconf) {
 500                 .burst_size = ENIC_DEFAULT_RX_BURST,
 501                 .ring_size = RTE_MIN(device_info->rx_desc_lim.nb_max,
 502                         ENIC_DEFAULT_RX_RING_SIZE),
 503                 .nb_queues = ENIC_DEFAULT_RX_RINGS,
 504         };
 505         device_info->default_txportconf = (struct rte_eth_dev_portconf) {
 506                 .burst_size = ENIC_DEFAULT_TX_BURST,
 507                 .ring_size = RTE_MIN(device_info->tx_desc_lim.nb_max,
 508                         ENIC_DEFAULT_TX_RING_SIZE),
 509                 .nb_queues = ENIC_DEFAULT_TX_RINGS,
 510         };
 511 }
 512
 513 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 514 {
 515         static const uint32_t ptypes[] = {
 516                 RTE_PTYPE_L2_ETHER,
 517                 RTE_PTYPE_L2_ETHER_VLAN,
 518                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 519                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 520                 RTE_PTYPE_L4_TCP,
 521                 RTE_PTYPE_L4_UDP,
 522                 RTE_PTYPE_L4_FRAG,
 523                 RTE_PTYPE_L4_NONFRAG,
 524                 RTE_PTYPE_UNKNOWN
 525         };
 526         static const uint32_t ptypes_overlay[] = {
 527                 RTE_PTYPE_L2_ETHER,
 528                 RTE_PTYPE_L2_ETHER_VLAN,
 529                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 530                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 531                 RTE_PTYPE_L4_TCP,
 532                 RTE_PTYPE_L4_UDP,
 533                 RTE_PTYPE_L4_FRAG,
 534                 RTE_PTYPE_L4_NONFRAG,
 535                 RTE_PTYPE_TUNNEL_GRENAT,
 536                 RTE_PTYPE_INNER_L2_ETHER,
 537                 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
 538                 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
 539                 RTE_PTYPE_INNER_L4_TCP,
 540                 RTE_PTYPE_INNER_L4_UDP,
 541                 RTE_PTYPE_INNER_L4_FRAG,
 542                 RTE_PTYPE_INNER_L4_NONFRAG,
 543                 RTE_PTYPE_UNKNOWN
 544         };
 545
 546         if (dev->rx_pkt_burst != enic_dummy_recv_pkts &&
 547             dev->rx_pkt_burst != NULL) {
 548                 struct enic *enic = pmd_priv(dev);
 549                 if (enic->overlay_offload)
 550                         return ptypes_overlay;
 551                 else
 552                         return ptypes;
 553         }
 554         return NULL;
 555 }
 556
 557 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
 558 {
 559         struct enic *enic = pmd_priv(eth_dev);
 560
 561         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 562                 return;
 563
 564         ENICPMD_FUNC_TRACE();
 565
 566         enic->promisc = 1;
 567         enic_add_packet_filter(enic);
 568 }
 569
 570 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
 571 {
 572         struct enic *enic = pmd_priv(eth_dev);
 573
 574         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 575                 return;
 576
 577         ENICPMD_FUNC_TRACE();
 578         enic->promisc = 0;
 579         enic_add_packet_filter(enic);
 580 }
 581
 582 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
 583 {
 584         struct enic *enic = pmd_priv(eth_dev);
 585
 586         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 587                 return;
 588
 589         ENICPMD_FUNC_TRACE();
 590         enic->allmulti = 1;
 591         enic_add_packet_filter(enic);
 592 }
 593
 594 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
 595 {
 596         struct enic *enic = pmd_priv(eth_dev);
 597
 598         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 599                 return;
 600
 601         ENICPMD_FUNC_TRACE();
 602         enic->allmulti = 0;
 603         enic_add_packet_filter(enic);
 604 }
 605
 606 static int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
 607         struct ether_addr *mac_addr,
 608         __rte_unused uint32_t index, __rte_unused uint32_t pool)
 609 {
 610         struct enic *enic = pmd_priv(eth_dev);
 611
 612         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 613                 return -E_RTE_SECONDARY;
 614
 615         ENICPMD_FUNC_TRACE();
 616         return enic_set_mac_address(enic, mac_addr->addr_bytes);
 617 }
 618
 619 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
 620 {
 621         struct enic *enic = pmd_priv(eth_dev);
 622
 623         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 624                 return;
 625
 626         ENICPMD_FUNC_TRACE();
 627         if (enic_del_mac_address(enic, index))
 628                 dev_err(enic, "del mac addr failed\n");
 629 }
 630
 631 static int enicpmd_set_mac_addr(struct rte_eth_dev *eth_dev,
 632                                 struct ether_addr *addr)
 633 {
 634         struct enic *enic = pmd_priv(eth_dev);
 635         int ret;
 636
 637         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 638                 return -E_RTE_SECONDARY;
 639
 640         ENICPMD_FUNC_TRACE();
 641         ret = enic_del_mac_address(enic, 0);
 642         if (ret)
 643                 return ret;
 644         return enic_set_mac_address(enic, addr->addr_bytes);
 645 }
 646
 647 static void debug_log_add_del_addr(struct ether_addr *addr, bool add)
 648 {
 649         char mac_str[ETHER_ADDR_FMT_SIZE];
 650         if (rte_log_get_level(enicpmd_logtype_init) == RTE_LOG_DEBUG) {
 651                 ether_format_addr(mac_str, ETHER_ADDR_FMT_SIZE, addr);
 652                 PMD_INIT_LOG(ERR, " %s address %s\n",
 653                              add ? "add" : "remove", mac_str);
 654         }
 655 }
 656
 657 static int enicpmd_set_mc_addr_list(struct rte_eth_dev *eth_dev,
 658                                     struct ether_addr *mc_addr_set,
 659                                     uint32_t nb_mc_addr)
 660 {
 661         struct enic *enic = pmd_priv(eth_dev);
 662         char mac_str[ETHER_ADDR_FMT_SIZE];
 663         struct ether_addr *addr;
 664         uint32_t i, j;
 665         int ret;
 666
 667         ENICPMD_FUNC_TRACE();
 668
 669         /* Validate the given addresses first */
 670         for (i = 0; i < nb_mc_addr && mc_addr_set != NULL; i++) {
 671                 addr = &mc_addr_set[i];
 672                 if (!is_multicast_ether_addr(addr) ||
 673                     is_broadcast_ether_addr(addr)) {
 674                         ether_format_addr(mac_str, ETHER_ADDR_FMT_SIZE, addr);
 675                         PMD_INIT_LOG(ERR, " invalid multicast address %s\n",
 676                                      mac_str);
 677                         return -EINVAL;
 678                 }
 679         }
 680
 681         /* Flush all if requested */
 682         if (nb_mc_addr == 0 || mc_addr_set == NULL) {
 683                 PMD_INIT_LOG(DEBUG, " flush multicast addresses\n");
 684                 for (i = 0; i < enic->mc_count; i++) {
 685                         addr = &enic->mc_addrs[i];
 686                         debug_log_add_del_addr(addr, false);
 687                         ret = vnic_dev_del_addr(enic->vdev, addr->addr_bytes);
 688                         if (ret)
 689                                 return ret;
 690                 }
 691                 enic->mc_count = 0;
 692                 return 0;
 693         }
 694
 695         if (nb_mc_addr > ENIC_MULTICAST_PERFECT_FILTERS) {
 696                 PMD_INIT_LOG(ERR, " too many multicast addresses: max=%d\n",
 697                              ENIC_MULTICAST_PERFECT_FILTERS);
 698                 return -ENOSPC;
 699         }
 700         /*
 701          * devcmd is slow, so apply the difference instead of flushing and
 702          * adding everything.
 703          * 1. Delete addresses on the NIC but not on the host
 704          */
 705         for (i = 0; i < enic->mc_count; i++) {
 706                 addr = &enic->mc_addrs[i];
 707                 for (j = 0; j < nb_mc_addr; j++) {
 708                         if (is_same_ether_addr(addr, &mc_addr_set[j]))
 709                                 break;
 710                 }
 711                 if (j < nb_mc_addr)
 712                         continue;
 713                 debug_log_add_del_addr(addr, false);
 714                 ret = vnic_dev_del_addr(enic->vdev, addr->addr_bytes);
 715                 if (ret)
 716                         return ret;
 717         }
 718         /* 2. Add addresses on the host but not on the NIC */
 719         for (i = 0; i < nb_mc_addr; i++) {
 720                 addr = &mc_addr_set[i];
 721                 for (j = 0; j < enic->mc_count; j++) {
 722                         if (is_same_ether_addr(addr, &enic->mc_addrs[j]))
 723                                 break;
 724                 }
 725                 if (j < enic->mc_count)
 726                         continue;
 727                 debug_log_add_del_addr(addr, true);
 728                 ret = vnic_dev_add_addr(enic->vdev, addr->addr_bytes);
 729                 if (ret)
 730                         return ret;
 731         }
 732         /* Keep a copy so we can flush/apply later on.. */
 733         memcpy(enic->mc_addrs, mc_addr_set,
 734                nb_mc_addr * sizeof(struct ether_addr));
 735         enic->mc_count = nb_mc_addr;
 736         return 0;
 737 }
 738
 739 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
 740 {
 741         struct enic *enic = pmd_priv(eth_dev);
 742
 743         ENICPMD_FUNC_TRACE();
 744         return enic_set_mtu(enic, mtu);
 745 }
 746
 747 static int enicpmd_dev_rss_reta_query(struct rte_eth_dev *dev,
 748                                       struct rte_eth_rss_reta_entry64
 749                                       *reta_conf,
 750                                       uint16_t reta_size)
 751 {
 752         struct enic *enic = pmd_priv(dev);
 753         uint16_t i, idx, shift;
 754
 755         ENICPMD_FUNC_TRACE();
 756         if (reta_size != ENIC_RSS_RETA_SIZE) {
 757                 dev_err(enic, "reta_query: wrong reta_size. given=%u expected=%u\n",
 758                         reta_size, ENIC_RSS_RETA_SIZE);
 759                 return -EINVAL;
 760         }
 761
 762         for (i = 0; i < reta_size; i++) {
 763                 idx = i / RTE_RETA_GROUP_SIZE;
 764                 shift = i % RTE_RETA_GROUP_SIZE;
 765                 if (reta_conf[idx].mask & (1ULL << shift))
 766                         reta_conf[idx].reta[shift] = enic_sop_rq_idx_to_rte_idx(
 767                                 enic->rss_cpu.cpu[i / 4].b[i % 4]);
 768         }
 769
 770         return 0;
 771 }
 772
 773 static int enicpmd_dev_rss_reta_update(struct rte_eth_dev *dev,
 774                                        struct rte_eth_rss_reta_entry64
 775                                        *reta_conf,
 776                                        uint16_t reta_size)
 777 {
 778         struct enic *enic = pmd_priv(dev);
 779         union vnic_rss_cpu rss_cpu;
 780         uint16_t i, idx, shift;
 781
 782         ENICPMD_FUNC_TRACE();
 783         if (reta_size != ENIC_RSS_RETA_SIZE) {
 784                 dev_err(enic, "reta_update: wrong reta_size. given=%u"
 785                         " expected=%u\n",
 786                         reta_size, ENIC_RSS_RETA_SIZE);
 787                 return -EINVAL;
 788         }
 789         /*
 790          * Start with the current reta and modify it per reta_conf, as we
 791          * need to push the entire reta even if we only modify one entry.
 792          */
 793         rss_cpu = enic->rss_cpu;
 794         for (i = 0; i < reta_size; i++) {
 795                 idx = i / RTE_RETA_GROUP_SIZE;
 796                 shift = i % RTE_RETA_GROUP_SIZE;
 797                 if (reta_conf[idx].mask & (1ULL << shift))
 798                         rss_cpu.cpu[i / 4].b[i % 4] =
 799                                 enic_rte_rq_idx_to_sop_idx(
 800                                         reta_conf[idx].reta[shift]);
 801         }
 802         return enic_set_rss_reta(enic, &rss_cpu);
 803 }
 804
 805 static int enicpmd_dev_rss_hash_update(struct rte_eth_dev *dev,
 806                                        struct rte_eth_rss_conf *rss_conf)
 807 {
 808         struct enic *enic = pmd_priv(dev);
 809
 810         ENICPMD_FUNC_TRACE();
 811         return enic_set_rss_conf(enic, rss_conf);
 812 }
 813
 814 static int enicpmd_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 815                                          struct rte_eth_rss_conf *rss_conf)
 816 {
 817         struct enic *enic = pmd_priv(dev);
 818
 819         ENICPMD_FUNC_TRACE();
 820         if (rss_conf == NULL)
 821                 return -EINVAL;
 822         if (rss_conf->rss_key != NULL &&
 823             rss_conf->rss_key_len < ENIC_RSS_HASH_KEY_SIZE) {
 824                 dev_err(enic, "rss_hash_conf_get: wrong rss_key_len. given=%u"
 825                         " expected=%u+\n",
 826                         rss_conf->rss_key_len, ENIC_RSS_HASH_KEY_SIZE);
 827                 return -EINVAL;
 828         }
 829         rss_conf->rss_hf = enic->rss_hf;
 830         if (rss_conf->rss_key != NULL) {
 831                 int i;
 832                 for (i = 0; i < ENIC_RSS_HASH_KEY_SIZE; i++) {
 833                         rss_conf->rss_key[i] =
 834                                 enic->rss_key.key[i / 10].b[i % 10];
 835                 }
 836                 rss_conf->rss_key_len = ENIC_RSS_HASH_KEY_SIZE;
 837         }
 838         return 0;
 839 }
 840
 841 static void enicpmd_dev_rxq_info_get(struct rte_eth_dev *dev,
 842                                      uint16_t rx_queue_id,
 843                                      struct rte_eth_rxq_info *qinfo)
 844 {
 845         struct enic *enic = pmd_priv(dev);
 846         struct vnic_rq *rq_sop;
 847         struct vnic_rq *rq_data;
 848         struct rte_eth_rxconf *conf;
 849         uint16_t sop_queue_idx;
 850         uint16_t data_queue_idx;
 851
 852         ENICPMD_FUNC_TRACE();
 853         sop_queue_idx = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
 854         data_queue_idx = enic_rte_rq_idx_to_data_idx(rx_queue_id);
 855         rq_sop = &enic->rq[sop_queue_idx];
 856         rq_data = &enic->rq[data_queue_idx]; /* valid if data_queue_enable */
 857         qinfo->mp = rq_sop->mp;
 858         qinfo->scattered_rx = rq_sop->data_queue_enable;
 859         qinfo->nb_desc = rq_sop->ring.desc_count;
 860         if (qinfo->scattered_rx)
 861                 qinfo->nb_desc += rq_data->ring.desc_count;
 862         conf = &qinfo->conf;
 863         memset(conf, 0, sizeof(*conf));
 864         conf->rx_free_thresh = rq_sop->rx_free_thresh;
 865         conf->rx_drop_en = 1;
 866         /*
 867          * Except VLAN stripping (port setting), all the checksum offloads
 868          * are always enabled.
 869          */
 870         conf->offloads = enic->rx_offload_capa;
 871         if (!enic->ig_vlan_strip_en)
 872                 conf->offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
 873         /* rx_thresh and other fields are not applicable for enic */
 874 }
 875
 876 static void enicpmd_dev_txq_info_get(struct rte_eth_dev *dev,
 877                                      uint16_t tx_queue_id,
 878                                      struct rte_eth_txq_info *qinfo)
 879 {
 880         struct enic *enic = pmd_priv(dev);
 881         struct vnic_wq *wq = &enic->wq[tx_queue_id];
 882
 883         ENICPMD_FUNC_TRACE();
 884         qinfo->nb_desc = wq->ring.desc_count;
 885         memset(&qinfo->conf, 0, sizeof(qinfo->conf));
 886         qinfo->conf.offloads = wq->offloads;
 887         /* tx_thresh, and all the other fields are not applicable for enic */
 888 }
 889
 890 static int enicpmd_dev_rx_queue_intr_enable(struct rte_eth_dev *eth_dev,
 891                                             uint16_t rx_queue_id)
 892 {
 893         struct enic *enic = pmd_priv(eth_dev);
 894
 895         ENICPMD_FUNC_TRACE();
 896         vnic_intr_unmask(&enic->intr[rx_queue_id + ENICPMD_RXQ_INTR_OFFSET]);
 897         return 0;
 898 }
 899
 900 static int enicpmd_dev_rx_queue_intr_disable(struct rte_eth_dev *eth_dev,
 901                                              uint16_t rx_queue_id)
 902 {
 903         struct enic *enic = pmd_priv(eth_dev);
 904
 905         ENICPMD_FUNC_TRACE();
 906         vnic_intr_mask(&enic->intr[rx_queue_id + ENICPMD_RXQ_INTR_OFFSET]);
 907         return 0;
 908 }
 909
 910 static int udp_tunnel_common_check(struct enic *enic,
 911                                    struct rte_eth_udp_tunnel *tnl)
 912 {
 913         if (tnl->prot_type != RTE_TUNNEL_TYPE_VXLAN)
 914                 return -ENOTSUP;
 915         if (!enic->overlay_offload) {
 916                 PMD_INIT_LOG(DEBUG, " vxlan (overlay offload) is not "
 917                              "supported\n");
 918                 return -ENOTSUP;
 919         }
 920         return 0;
 921 }
 922
 923 static int update_vxlan_port(struct enic *enic, uint16_t port)
 924 {
 925         if (vnic_dev_overlay_offload_cfg(enic->vdev,
 926                                          OVERLAY_CFG_VXLAN_PORT_UPDATE,
 927                                          port)) {
 928                 PMD_INIT_LOG(DEBUG, " failed to update vxlan port\n");
 929                 return -EINVAL;
 930         }
 931         PMD_INIT_LOG(DEBUG, " updated vxlan port to %u\n", port);
 932         enic->vxlan_port = port;
 933         return 0;
 934 }
 935
 936 static int enicpmd_dev_udp_tunnel_port_add(struct rte_eth_dev *eth_dev,
 937                                            struct rte_eth_udp_tunnel *tnl)
 938 {
 939         struct enic *enic = pmd_priv(eth_dev);
 940         int ret;
 941
 942         ENICPMD_FUNC_TRACE();
 943         ret = udp_tunnel_common_check(enic, tnl);
 944         if (ret)
 945                 return ret;
 946         /*
 947          * The NIC has 1 configurable VXLAN port number. "Adding" a new port
 948          * number replaces it.
 949          */
 950         if (tnl->udp_port == enic->vxlan_port || tnl->udp_port == 0) {
 951                 PMD_INIT_LOG(DEBUG, " %u is already configured or invalid\n",
 952                              tnl->udp_port);
 953                 return -EINVAL;
 954         }
 955         return update_vxlan_port(enic, tnl->udp_port);
 956 }
 957
 958 static int enicpmd_dev_udp_tunnel_port_del(struct rte_eth_dev *eth_dev,
 959                                            struct rte_eth_udp_tunnel *tnl)
 960 {
 961         struct enic *enic = pmd_priv(eth_dev);
 962         int ret;
 963
 964         ENICPMD_FUNC_TRACE();
 965         ret = udp_tunnel_common_check(enic, tnl);
 966         if (ret)
 967                 return ret;
 968         /*
 969          * Clear the previously set port number and restore the
 970          * hardware default port number. Some drivers disable VXLAN
 971          * offloads when there are no configured port numbers. But
 972          * enic does not do that as VXLAN is part of overlay offload,
 973          * which is tied to inner RSS and TSO.
 974          */
 975         if (tnl->udp_port != enic->vxlan_port) {
 976                 PMD_INIT_LOG(DEBUG, " %u is not a configured vxlan port\n",
 977                              tnl->udp_port);
 978                 return -EINVAL;
 979         }
 980         return update_vxlan_port(enic, ENIC_DEFAULT_VXLAN_PORT);
 981 }
 982
 983 static int enicpmd_dev_fw_version_get(struct rte_eth_dev *eth_dev,
 984                                       char *fw_version, size_t fw_size)
 985 {
 986         struct vnic_devcmd_fw_info *info;
 987         struct enic *enic;
 988         int ret;
 989
 990         ENICPMD_FUNC_TRACE();
 991         if (fw_version == NULL || fw_size <= 0)
 992                 return -EINVAL;
 993         enic = pmd_priv(eth_dev);
 994         ret = vnic_dev_fw_info(enic->vdev, &info);
 995         if (ret)
 996                 return ret;
 997         snprintf(fw_version, fw_size, "%s %s",
 998                  info->fw_version, info->fw_build);
 999         fw_version[fw_size - 1] = '\0';
1000         return 0;
1001 }
1002
1003 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
1004         .dev_configure        = enicpmd_dev_configure,
1005         .dev_start            = enicpmd_dev_start,
1006         .dev_stop             = enicpmd_dev_stop,
1007         .dev_set_link_up      = NULL,
1008         .dev_set_link_down    = NULL,
1009         .dev_close            = enicpmd_dev_close,
1010         .promiscuous_enable   = enicpmd_dev_promiscuous_enable,
1011         .promiscuous_disable  = enicpmd_dev_promiscuous_disable,
1012         .allmulticast_enable  = enicpmd_dev_allmulticast_enable,
1013         .allmulticast_disable = enicpmd_dev_allmulticast_disable,
1014         .link_update          = enicpmd_dev_link_update,
1015         .stats_get            = enicpmd_dev_stats_get,
1016         .stats_reset          = enicpmd_dev_stats_reset,
1017         .queue_stats_mapping_set = NULL,
1018         .dev_infos_get        = enicpmd_dev_info_get,
1019         .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
1020         .mtu_set              = enicpmd_mtu_set,
1021         .vlan_filter_set      = NULL,
1022         .vlan_tpid_set        = NULL,
1023         .vlan_offload_set     = enicpmd_vlan_offload_set,
1024         .vlan_strip_queue_set = NULL,
1025         .rx_queue_start       = enicpmd_dev_rx_queue_start,
1026         .rx_queue_stop        = enicpmd_dev_rx_queue_stop,
1027         .tx_queue_start       = enicpmd_dev_tx_queue_start,
1028         .tx_queue_stop        = enicpmd_dev_tx_queue_stop,
1029         .rx_queue_setup       = enicpmd_dev_rx_queue_setup,
1030         .rx_queue_release     = enicpmd_dev_rx_queue_release,
1031         .rx_queue_count       = enicpmd_dev_rx_queue_count,
1032         .rx_descriptor_done   = NULL,
1033         .tx_queue_setup       = enicpmd_dev_tx_queue_setup,
1034         .tx_queue_release     = enicpmd_dev_tx_queue_release,
1035         .rx_queue_intr_enable = enicpmd_dev_rx_queue_intr_enable,
1036         .rx_queue_intr_disable = enicpmd_dev_rx_queue_intr_disable,
1037         .rxq_info_get         = enicpmd_dev_rxq_info_get,
1038         .txq_info_get         = enicpmd_dev_txq_info_get,
1039         .dev_led_on           = NULL,
1040         .dev_led_off          = NULL,
1041         .flow_ctrl_get        = NULL,
1042         .flow_ctrl_set        = NULL,
1043         .priority_flow_ctrl_set = NULL,
1044         .mac_addr_add         = enicpmd_add_mac_addr,
1045         .mac_addr_remove      = enicpmd_remove_mac_addr,
1046         .mac_addr_set         = enicpmd_set_mac_addr,
1047         .set_mc_addr_list     = enicpmd_set_mc_addr_list,
1048         .filter_ctrl          = enicpmd_dev_filter_ctrl,
1049         .reta_query           = enicpmd_dev_rss_reta_query,
1050         .reta_update          = enicpmd_dev_rss_reta_update,
1051         .rss_hash_conf_get    = enicpmd_dev_rss_hash_conf_get,
1052         .rss_hash_update      = enicpmd_dev_rss_hash_update,
1053         .udp_tunnel_port_add  = enicpmd_dev_udp_tunnel_port_add,
1054         .udp_tunnel_port_del  = enicpmd_dev_udp_tunnel_port_del,
1055         .fw_version_get       = enicpmd_dev_fw_version_get,
1056 };
1057
1058 static int enic_parse_zero_one(const char *key,
1059                                const char *value,
1060                                void *opaque)
1061 {
1062         struct enic *enic;
1063         bool b;
1064
1065         enic = (struct enic *)opaque;
1066         if (strcmp(value, "0") == 0) {
1067                 b = false;
1068         } else if (strcmp(value, "1") == 0) {
1069                 b = true;
1070         } else {
1071                 dev_err(enic, "Invalid value for %s"
1072                         ": expected=0|1 given=%s\n", key, value);
1073                 return -EINVAL;
1074         }
1075         if (strcmp(key, ENIC_DEVARG_DISABLE_OVERLAY) == 0)
1076                 enic->disable_overlay = b;
1077         if (strcmp(key, ENIC_DEVARG_ENABLE_AVX2_RX) == 0)
1078                 enic->enable_avx2_rx = b;
1079         return 0;
1080 }
1081
1082 static int enic_parse_ig_vlan_rewrite(__rte_unused const char *key,
1083                                       const char *value,
1084                                       void *opaque)
1085 {
1086         struct enic *enic;
1087
1088         enic = (struct enic *)opaque;
1089         if (strcmp(value, "trunk") == 0) {
1090                 /* Trunk mode: always tag */
1091                 enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_DEFAULT_TRUNK;
1092         } else if (strcmp(value, "untag") == 0) {
1093                 /* Untag default VLAN mode: untag if VLAN = default VLAN */
1094                 enic->ig_vlan_rewrite_mode =
1095                         IG_VLAN_REWRITE_MODE_UNTAG_DEFAULT_VLAN;
1096         } else if (strcmp(value, "priority") == 0) {
1097                 /*
1098                  * Priority-tag default VLAN mode: priority tag (VLAN header
1099                  * with ID=0) if VLAN = default
1100                  */
1101                 enic->ig_vlan_rewrite_mode =
1102                         IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN;
1103         } else if (strcmp(value, "pass") == 0) {
1104                 /* Pass through mode: do not touch tags */
1105                 enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
1106         } else {
1107                 dev_err(enic, "Invalid value for " ENIC_DEVARG_IG_VLAN_REWRITE
1108                         ": expected=trunk|untag|priority|pass given=%s\n",
1109                         value);
1110                 return -EINVAL;
1111         }
1112         return 0;
1113 }
1114
1115 static int enic_check_devargs(struct rte_eth_dev *dev)
1116 {
1117         static const char *const valid_keys[] = {
1118                 ENIC_DEVARG_DISABLE_OVERLAY,
1119                 ENIC_DEVARG_ENABLE_AVX2_RX,
1120                 ENIC_DEVARG_IG_VLAN_REWRITE,
1121                 NULL};
1122         struct enic *enic = pmd_priv(dev);
1123         struct rte_kvargs *kvlist;
1124
1125         ENICPMD_FUNC_TRACE();
1126
1127         enic->disable_overlay = false;
1128         enic->enable_avx2_rx = false;
1129         enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
1130         if (!dev->device->devargs)
1131                 return 0;
1132         kvlist = rte_kvargs_parse(dev->device->devargs->args, valid_keys);
1133         if (!kvlist)
1134                 return -EINVAL;
1135         if (rte_kvargs_process(kvlist, ENIC_DEVARG_DISABLE_OVERLAY,
1136                                enic_parse_zero_one, enic) < 0 ||
1137             rte_kvargs_process(kvlist, ENIC_DEVARG_ENABLE_AVX2_RX,
1138                                enic_parse_zero_one, enic) < 0 ||
1139             rte_kvargs_process(kvlist, ENIC_DEVARG_IG_VLAN_REWRITE,
1140                                enic_parse_ig_vlan_rewrite, enic) < 0) {
1141                 rte_kvargs_free(kvlist);
1142                 return -EINVAL;
1143         }
1144         rte_kvargs_free(kvlist);
1145         return 0;
1146 }
1147
1148 /* Initialize the driver
1149  * It returns 0 on success.
1150  */
1151 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
1152 {
1153         struct rte_pci_device *pdev;
1154         struct rte_pci_addr *addr;
1155         struct enic *enic = pmd_priv(eth_dev);
1156         int err;
1157
1158         ENICPMD_FUNC_TRACE();
1159
1160         enic->port_id = eth_dev->data->port_id;
1161         enic->rte_dev = eth_dev;
1162         eth_dev->dev_ops = &enicpmd_eth_dev_ops;
1163         eth_dev->rx_pkt_burst = &enic_recv_pkts;
1164         eth_dev->tx_pkt_burst = &enic_xmit_pkts;
1165         eth_dev->tx_pkt_prepare = &enic_prep_pkts;
1166         /* Let rte_eth_dev_close() release the port resources */
1167         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
1168
1169         pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
1170         rte_eth_copy_pci_info(eth_dev, pdev);
1171         enic->pdev = pdev;
1172         addr = &pdev->addr;
1173
1174         snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
1175                 addr->domain, addr->bus, addr->devid, addr->function);
1176
1177         err = enic_check_devargs(eth_dev);
1178         if (err)
1179                 return err;
1180         return enic_probe(enic);
1181 }
1182
1183 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1184         struct rte_pci_device *pci_dev)
1185 {
1186         return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
1187                 eth_enicpmd_dev_init);
1188 }
1189
1190 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
1191 {
1192         return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
1193 }
1194
1195 static struct rte_pci_driver rte_enic_pmd = {
1196         .id_table = pci_id_enic_map,
1197         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
1198                      RTE_PCI_DRV_IOVA_AS_VA,
1199         .probe = eth_enic_pci_probe,
1200         .remove = eth_enic_pci_remove,
1201 };
1202
1203 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
1204 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
1205 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");
1206 RTE_PMD_REGISTER_PARAM_STRING(net_enic,
1207         ENIC_DEVARG_DISABLE_OVERLAY "=0|1 "
1208         ENIC_DEVARG_ENABLE_AVX2_RX "=0|1 "
1209         ENIC_DEVARG_IG_VLAN_REWRITE "=trunk|untag|priority|pass");