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->min_mtu = ENIC_MIN_MTU;
 479         device_info->max_mtu = enic->max_mtu;
 480         device_info->rx_offload_capa = enic->rx_offload_capa;
 481         device_info->tx_offload_capa = enic->tx_offload_capa;
 482         device_info->tx_queue_offload_capa = enic->tx_queue_offload_capa;
 483         device_info->default_rxconf = (struct rte_eth_rxconf) {
 484                 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
 485         };
 486         device_info->reta_size = enic->reta_size;
 487         device_info->hash_key_size = enic->hash_key_size;
 488         device_info->flow_type_rss_offloads = enic->flow_type_rss_offloads;
 489         device_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 490                 .nb_max = enic->config.rq_desc_count,
 491                 .nb_min = ENIC_MIN_RQ_DESCS,
 492                 .nb_align = ENIC_ALIGN_DESCS,
 493         };
 494         device_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 495                 .nb_max = enic->config.wq_desc_count,
 496                 .nb_min = ENIC_MIN_WQ_DESCS,
 497                 .nb_align = ENIC_ALIGN_DESCS,
 498                 .nb_seg_max = ENIC_TX_XMIT_MAX,
 499                 .nb_mtu_seg_max = ENIC_NON_TSO_MAX_DESC,
 500         };
 501         device_info->default_rxportconf = (struct rte_eth_dev_portconf) {
 502                 .burst_size = ENIC_DEFAULT_RX_BURST,
 503                 .ring_size = RTE_MIN(device_info->rx_desc_lim.nb_max,
 504                         ENIC_DEFAULT_RX_RING_SIZE),
 505                 .nb_queues = ENIC_DEFAULT_RX_RINGS,
 506         };
 507         device_info->default_txportconf = (struct rte_eth_dev_portconf) {
 508                 .burst_size = ENIC_DEFAULT_TX_BURST,
 509                 .ring_size = RTE_MIN(device_info->tx_desc_lim.nb_max,
 510                         ENIC_DEFAULT_TX_RING_SIZE),
 511                 .nb_queues = ENIC_DEFAULT_TX_RINGS,
 512         };
 513 }
 514
 515 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 516 {
 517         static const uint32_t ptypes[] = {
 518                 RTE_PTYPE_L2_ETHER,
 519                 RTE_PTYPE_L2_ETHER_VLAN,
 520                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 521                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 522                 RTE_PTYPE_L4_TCP,
 523                 RTE_PTYPE_L4_UDP,
 524                 RTE_PTYPE_L4_FRAG,
 525                 RTE_PTYPE_L4_NONFRAG,
 526                 RTE_PTYPE_UNKNOWN
 527         };
 528         static const uint32_t ptypes_overlay[] = {
 529                 RTE_PTYPE_L2_ETHER,
 530                 RTE_PTYPE_L2_ETHER_VLAN,
 531                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 532                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 533                 RTE_PTYPE_L4_TCP,
 534                 RTE_PTYPE_L4_UDP,
 535                 RTE_PTYPE_L4_FRAG,
 536                 RTE_PTYPE_L4_NONFRAG,
 537                 RTE_PTYPE_TUNNEL_GRENAT,
 538                 RTE_PTYPE_INNER_L2_ETHER,
 539                 RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
 540                 RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
 541                 RTE_PTYPE_INNER_L4_TCP,
 542                 RTE_PTYPE_INNER_L4_UDP,
 543                 RTE_PTYPE_INNER_L4_FRAG,
 544                 RTE_PTYPE_INNER_L4_NONFRAG,
 545                 RTE_PTYPE_UNKNOWN
 546         };
 547
 548         if (dev->rx_pkt_burst != enic_dummy_recv_pkts &&
 549             dev->rx_pkt_burst != NULL) {
 550                 struct enic *enic = pmd_priv(dev);
 551                 if (enic->overlay_offload)
 552                         return ptypes_overlay;
 553                 else
 554                         return ptypes;
 555         }
 556         return NULL;
 557 }
 558
 559 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
 560 {
 561         struct enic *enic = pmd_priv(eth_dev);
 562
 563         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 564                 return;
 565
 566         ENICPMD_FUNC_TRACE();
 567
 568         enic->promisc = 1;
 569         enic_add_packet_filter(enic);
 570 }
 571
 572 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
 573 {
 574         struct enic *enic = pmd_priv(eth_dev);
 575
 576         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 577                 return;
 578
 579         ENICPMD_FUNC_TRACE();
 580         enic->promisc = 0;
 581         enic_add_packet_filter(enic);
 582 }
 583
 584 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
 585 {
 586         struct enic *enic = pmd_priv(eth_dev);
 587
 588         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 589                 return;
 590
 591         ENICPMD_FUNC_TRACE();
 592         enic->allmulti = 1;
 593         enic_add_packet_filter(enic);
 594 }
 595
 596 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
 597 {
 598         struct enic *enic = pmd_priv(eth_dev);
 599
 600         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 601                 return;
 602
 603         ENICPMD_FUNC_TRACE();
 604         enic->allmulti = 0;
 605         enic_add_packet_filter(enic);
 606 }
 607
 608 static int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
 609         struct rte_ether_addr *mac_addr,
 610         __rte_unused uint32_t index, __rte_unused uint32_t pool)
 611 {
 612         struct enic *enic = pmd_priv(eth_dev);
 613
 614         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 615                 return -E_RTE_SECONDARY;
 616
 617         ENICPMD_FUNC_TRACE();
 618         return enic_set_mac_address(enic, mac_addr->addr_bytes);
 619 }
 620
 621 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
 622 {
 623         struct enic *enic = pmd_priv(eth_dev);
 624
 625         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 626                 return;
 627
 628         ENICPMD_FUNC_TRACE();
 629         if (enic_del_mac_address(enic, index))
 630                 dev_err(enic, "del mac addr failed\n");
 631 }
 632
 633 static int enicpmd_set_mac_addr(struct rte_eth_dev *eth_dev,
 634                                 struct rte_ether_addr *addr)
 635 {
 636         struct enic *enic = pmd_priv(eth_dev);
 637         int ret;
 638
 639         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 640                 return -E_RTE_SECONDARY;
 641
 642         ENICPMD_FUNC_TRACE();
 643         ret = enic_del_mac_address(enic, 0);
 644         if (ret)
 645                 return ret;
 646         return enic_set_mac_address(enic, addr->addr_bytes);
 647 }
 648
 649 static void debug_log_add_del_addr(struct rte_ether_addr *addr, bool add)
 650 {
 651         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 652
 653         rte_ether_format_addr(mac_str, RTE_ETHER_ADDR_FMT_SIZE, addr);
 654         PMD_INIT_LOG(DEBUG, " %s address %s\n",
 655                      add ? "add" : "remove", mac_str);
 656 }
 657
 658 static int enicpmd_set_mc_addr_list(struct rte_eth_dev *eth_dev,
 659                                     struct rte_ether_addr *mc_addr_set,
 660                                     uint32_t nb_mc_addr)
 661 {
 662         struct enic *enic = pmd_priv(eth_dev);
 663         char mac_str[RTE_ETHER_ADDR_FMT_SIZE];
 664         struct rte_ether_addr *addr;
 665         uint32_t i, j;
 666         int ret;
 667
 668         ENICPMD_FUNC_TRACE();
 669
 670         /* Validate the given addresses first */
 671         for (i = 0; i < nb_mc_addr && mc_addr_set != NULL; i++) {
 672                 addr = &mc_addr_set[i];
 673                 if (!rte_is_multicast_ether_addr(addr) ||
 674                     rte_is_broadcast_ether_addr(addr)) {
 675                         rte_ether_format_addr(mac_str,
 676                                         RTE_ETHER_ADDR_FMT_SIZE, addr);
 677                         PMD_INIT_LOG(ERR, " invalid multicast address %s\n",
 678                                      mac_str);
 679                         return -EINVAL;
 680                 }
 681         }
 682
 683         /* Flush all if requested */
 684         if (nb_mc_addr == 0 || mc_addr_set == NULL) {
 685                 PMD_INIT_LOG(DEBUG, " flush multicast addresses\n");
 686                 for (i = 0; i < enic->mc_count; i++) {
 687                         addr = &enic->mc_addrs[i];
 688                         debug_log_add_del_addr(addr, false);
 689                         ret = vnic_dev_del_addr(enic->vdev, addr->addr_bytes);
 690                         if (ret)
 691                                 return ret;
 692                 }
 693                 enic->mc_count = 0;
 694                 return 0;
 695         }
 696
 697         if (nb_mc_addr > ENIC_MULTICAST_PERFECT_FILTERS) {
 698                 PMD_INIT_LOG(ERR, " too many multicast addresses: max=%d\n",
 699                              ENIC_MULTICAST_PERFECT_FILTERS);
 700                 return -ENOSPC;
 701         }
 702         /*
 703          * devcmd is slow, so apply the difference instead of flushing and
 704          * adding everything.
 705          * 1. Delete addresses on the NIC but not on the host
 706          */
 707         for (i = 0; i < enic->mc_count; i++) {
 708                 addr = &enic->mc_addrs[i];
 709                 for (j = 0; j < nb_mc_addr; j++) {
 710                         if (rte_is_same_ether_addr(addr, &mc_addr_set[j]))
 711                                 break;
 712                 }
 713                 if (j < nb_mc_addr)
 714                         continue;
 715                 debug_log_add_del_addr(addr, false);
 716                 ret = vnic_dev_del_addr(enic->vdev, addr->addr_bytes);
 717                 if (ret)
 718                         return ret;
 719         }
 720         /* 2. Add addresses on the host but not on the NIC */
 721         for (i = 0; i < nb_mc_addr; i++) {
 722                 addr = &mc_addr_set[i];
 723                 for (j = 0; j < enic->mc_count; j++) {
 724                         if (rte_is_same_ether_addr(addr, &enic->mc_addrs[j]))
 725                                 break;
 726                 }
 727                 if (j < enic->mc_count)
 728                         continue;
 729                 debug_log_add_del_addr(addr, true);
 730                 ret = vnic_dev_add_addr(enic->vdev, addr->addr_bytes);
 731                 if (ret)
 732                         return ret;
 733         }
 734         /* Keep a copy so we can flush/apply later on.. */
 735         memcpy(enic->mc_addrs, mc_addr_set,
 736                nb_mc_addr * sizeof(struct rte_ether_addr));
 737         enic->mc_count = nb_mc_addr;
 738         return 0;
 739 }
 740
 741 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
 742 {
 743         struct enic *enic = pmd_priv(eth_dev);
 744
 745         ENICPMD_FUNC_TRACE();
 746         return enic_set_mtu(enic, mtu);
 747 }
 748
 749 static int enicpmd_dev_rss_reta_query(struct rte_eth_dev *dev,
 750                                       struct rte_eth_rss_reta_entry64
 751                                       *reta_conf,
 752                                       uint16_t reta_size)
 753 {
 754         struct enic *enic = pmd_priv(dev);
 755         uint16_t i, idx, shift;
 756
 757         ENICPMD_FUNC_TRACE();
 758         if (reta_size != ENIC_RSS_RETA_SIZE) {
 759                 dev_err(enic, "reta_query: wrong reta_size. given=%u expected=%u\n",
 760                         reta_size, ENIC_RSS_RETA_SIZE);
 761                 return -EINVAL;
 762         }
 763
 764         for (i = 0; i < reta_size; i++) {
 765                 idx = i / RTE_RETA_GROUP_SIZE;
 766                 shift = i % RTE_RETA_GROUP_SIZE;
 767                 if (reta_conf[idx].mask & (1ULL << shift))
 768                         reta_conf[idx].reta[shift] = enic_sop_rq_idx_to_rte_idx(
 769                                 enic->rss_cpu.cpu[i / 4].b[i % 4]);
 770         }
 771
 772         return 0;
 773 }
 774
 775 static int enicpmd_dev_rss_reta_update(struct rte_eth_dev *dev,
 776                                        struct rte_eth_rss_reta_entry64
 777                                        *reta_conf,
 778                                        uint16_t reta_size)
 779 {
 780         struct enic *enic = pmd_priv(dev);
 781         union vnic_rss_cpu rss_cpu;
 782         uint16_t i, idx, shift;
 783
 784         ENICPMD_FUNC_TRACE();
 785         if (reta_size != ENIC_RSS_RETA_SIZE) {
 786                 dev_err(enic, "reta_update: wrong reta_size. given=%u"
 787                         " expected=%u\n",
 788                         reta_size, ENIC_RSS_RETA_SIZE);
 789                 return -EINVAL;
 790         }
 791         /*
 792          * Start with the current reta and modify it per reta_conf, as we
 793          * need to push the entire reta even if we only modify one entry.
 794          */
 795         rss_cpu = enic->rss_cpu;
 796         for (i = 0; i < reta_size; i++) {
 797                 idx = i / RTE_RETA_GROUP_SIZE;
 798                 shift = i % RTE_RETA_GROUP_SIZE;
 799                 if (reta_conf[idx].mask & (1ULL << shift))
 800                         rss_cpu.cpu[i / 4].b[i % 4] =
 801                                 enic_rte_rq_idx_to_sop_idx(
 802                                         reta_conf[idx].reta[shift]);
 803         }
 804         return enic_set_rss_reta(enic, &rss_cpu);
 805 }
 806
 807 static int enicpmd_dev_rss_hash_update(struct rte_eth_dev *dev,
 808                                        struct rte_eth_rss_conf *rss_conf)
 809 {
 810         struct enic *enic = pmd_priv(dev);
 811
 812         ENICPMD_FUNC_TRACE();
 813         return enic_set_rss_conf(enic, rss_conf);
 814 }
 815
 816 static int enicpmd_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 817                                          struct rte_eth_rss_conf *rss_conf)
 818 {
 819         struct enic *enic = pmd_priv(dev);
 820
 821         ENICPMD_FUNC_TRACE();
 822         if (rss_conf == NULL)
 823                 return -EINVAL;
 824         if (rss_conf->rss_key != NULL &&
 825             rss_conf->rss_key_len < ENIC_RSS_HASH_KEY_SIZE) {
 826                 dev_err(enic, "rss_hash_conf_get: wrong rss_key_len. given=%u"
 827                         " expected=%u+\n",
 828                         rss_conf->rss_key_len, ENIC_RSS_HASH_KEY_SIZE);
 829                 return -EINVAL;
 830         }
 831         rss_conf->rss_hf = enic->rss_hf;
 832         if (rss_conf->rss_key != NULL) {
 833                 int i;
 834                 for (i = 0; i < ENIC_RSS_HASH_KEY_SIZE; i++) {
 835                         rss_conf->rss_key[i] =
 836                                 enic->rss_key.key[i / 10].b[i % 10];
 837                 }
 838                 rss_conf->rss_key_len = ENIC_RSS_HASH_KEY_SIZE;
 839         }
 840         return 0;
 841 }
 842
 843 static void enicpmd_dev_rxq_info_get(struct rte_eth_dev *dev,
 844                                      uint16_t rx_queue_id,
 845                                      struct rte_eth_rxq_info *qinfo)
 846 {
 847         struct enic *enic = pmd_priv(dev);
 848         struct vnic_rq *rq_sop;
 849         struct vnic_rq *rq_data;
 850         struct rte_eth_rxconf *conf;
 851         uint16_t sop_queue_idx;
 852         uint16_t data_queue_idx;
 853
 854         ENICPMD_FUNC_TRACE();
 855         sop_queue_idx = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
 856         data_queue_idx = enic_rte_rq_idx_to_data_idx(rx_queue_id);
 857         rq_sop = &enic->rq[sop_queue_idx];
 858         rq_data = &enic->rq[data_queue_idx]; /* valid if data_queue_enable */
 859         qinfo->mp = rq_sop->mp;
 860         qinfo->scattered_rx = rq_sop->data_queue_enable;
 861         qinfo->nb_desc = rq_sop->ring.desc_count;
 862         if (qinfo->scattered_rx)
 863                 qinfo->nb_desc += rq_data->ring.desc_count;
 864         conf = &qinfo->conf;
 865         memset(conf, 0, sizeof(*conf));
 866         conf->rx_free_thresh = rq_sop->rx_free_thresh;
 867         conf->rx_drop_en = 1;
 868         /*
 869          * Except VLAN stripping (port setting), all the checksum offloads
 870          * are always enabled.
 871          */
 872         conf->offloads = enic->rx_offload_capa;
 873         if (!enic->ig_vlan_strip_en)
 874                 conf->offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
 875         /* rx_thresh and other fields are not applicable for enic */
 876 }
 877
 878 static void enicpmd_dev_txq_info_get(struct rte_eth_dev *dev,
 879                                      uint16_t tx_queue_id,
 880                                      struct rte_eth_txq_info *qinfo)
 881 {
 882         struct enic *enic = pmd_priv(dev);
 883         struct vnic_wq *wq = &enic->wq[tx_queue_id];
 884
 885         ENICPMD_FUNC_TRACE();
 886         qinfo->nb_desc = wq->ring.desc_count;
 887         memset(&qinfo->conf, 0, sizeof(qinfo->conf));
 888         qinfo->conf.offloads = wq->offloads;
 889         /* tx_thresh, and all the other fields are not applicable for enic */
 890 }
 891
 892 static int enicpmd_dev_rx_queue_intr_enable(struct rte_eth_dev *eth_dev,
 893                                             uint16_t rx_queue_id)
 894 {
 895         struct enic *enic = pmd_priv(eth_dev);
 896
 897         ENICPMD_FUNC_TRACE();
 898         vnic_intr_unmask(&enic->intr[rx_queue_id + ENICPMD_RXQ_INTR_OFFSET]);
 899         return 0;
 900 }
 901
 902 static int enicpmd_dev_rx_queue_intr_disable(struct rte_eth_dev *eth_dev,
 903                                              uint16_t rx_queue_id)
 904 {
 905         struct enic *enic = pmd_priv(eth_dev);
 906
 907         ENICPMD_FUNC_TRACE();
 908         vnic_intr_mask(&enic->intr[rx_queue_id + ENICPMD_RXQ_INTR_OFFSET]);
 909         return 0;
 910 }
 911
 912 static int udp_tunnel_common_check(struct enic *enic,
 913                                    struct rte_eth_udp_tunnel *tnl)
 914 {
 915         if (tnl->prot_type != RTE_TUNNEL_TYPE_VXLAN)
 916                 return -ENOTSUP;
 917         if (!enic->overlay_offload) {
 918                 PMD_INIT_LOG(DEBUG, " vxlan (overlay offload) is not "
 919                              "supported\n");
 920                 return -ENOTSUP;
 921         }
 922         return 0;
 923 }
 924
 925 static int update_vxlan_port(struct enic *enic, uint16_t port)
 926 {
 927         if (vnic_dev_overlay_offload_cfg(enic->vdev,
 928                                          OVERLAY_CFG_VXLAN_PORT_UPDATE,
 929                                          port)) {
 930                 PMD_INIT_LOG(DEBUG, " failed to update vxlan port\n");
 931                 return -EINVAL;
 932         }
 933         PMD_INIT_LOG(DEBUG, " updated vxlan port to %u\n", port);
 934         enic->vxlan_port = port;
 935         return 0;
 936 }
 937
 938 static int enicpmd_dev_udp_tunnel_port_add(struct rte_eth_dev *eth_dev,
 939                                            struct rte_eth_udp_tunnel *tnl)
 940 {
 941         struct enic *enic = pmd_priv(eth_dev);
 942         int ret;
 943
 944         ENICPMD_FUNC_TRACE();
 945         ret = udp_tunnel_common_check(enic, tnl);
 946         if (ret)
 947                 return ret;
 948         /*
 949          * The NIC has 1 configurable VXLAN port number. "Adding" a new port
 950          * number replaces it.
 951          */
 952         if (tnl->udp_port == enic->vxlan_port || tnl->udp_port == 0) {
 953                 PMD_INIT_LOG(DEBUG, " %u is already configured or invalid\n",
 954                              tnl->udp_port);
 955                 return -EINVAL;
 956         }
 957         return update_vxlan_port(enic, tnl->udp_port);
 958 }
 959
 960 static int enicpmd_dev_udp_tunnel_port_del(struct rte_eth_dev *eth_dev,
 961                                            struct rte_eth_udp_tunnel *tnl)
 962 {
 963         struct enic *enic = pmd_priv(eth_dev);
 964         int ret;
 965
 966         ENICPMD_FUNC_TRACE();
 967         ret = udp_tunnel_common_check(enic, tnl);
 968         if (ret)
 969                 return ret;
 970         /*
 971          * Clear the previously set port number and restore the
 972          * hardware default port number. Some drivers disable VXLAN
 973          * offloads when there are no configured port numbers. But
 974          * enic does not do that as VXLAN is part of overlay offload,
 975          * which is tied to inner RSS and TSO.
 976          */
 977         if (tnl->udp_port != enic->vxlan_port) {
 978                 PMD_INIT_LOG(DEBUG, " %u is not a configured vxlan port\n",
 979                              tnl->udp_port);
 980                 return -EINVAL;
 981         }
 982         return update_vxlan_port(enic, ENIC_DEFAULT_VXLAN_PORT);
 983 }
 984
 985 static int enicpmd_dev_fw_version_get(struct rte_eth_dev *eth_dev,
 986                                       char *fw_version, size_t fw_size)
 987 {
 988         struct vnic_devcmd_fw_info *info;
 989         struct enic *enic;
 990         int ret;
 991
 992         ENICPMD_FUNC_TRACE();
 993         if (fw_version == NULL || fw_size <= 0)
 994                 return -EINVAL;
 995         enic = pmd_priv(eth_dev);
 996         ret = vnic_dev_fw_info(enic->vdev, &info);
 997         if (ret)
 998                 return ret;
 999         snprintf(fw_version, fw_size, "%s %s",
1000                  info->fw_version, info->fw_build);
1001         fw_version[fw_size - 1] = '\0';
1002         return 0;
1003 }
1004
1005 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
1006         .dev_configure        = enicpmd_dev_configure,
1007         .dev_start            = enicpmd_dev_start,
1008         .dev_stop             = enicpmd_dev_stop,
1009         .dev_set_link_up      = NULL,
1010         .dev_set_link_down    = NULL,
1011         .dev_close            = enicpmd_dev_close,
1012         .promiscuous_enable   = enicpmd_dev_promiscuous_enable,
1013         .promiscuous_disable  = enicpmd_dev_promiscuous_disable,
1014         .allmulticast_enable  = enicpmd_dev_allmulticast_enable,
1015         .allmulticast_disable = enicpmd_dev_allmulticast_disable,
1016         .link_update          = enicpmd_dev_link_update,
1017         .stats_get            = enicpmd_dev_stats_get,
1018         .stats_reset          = enicpmd_dev_stats_reset,
1019         .queue_stats_mapping_set = NULL,
1020         .dev_infos_get        = enicpmd_dev_info_get,
1021         .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
1022         .mtu_set              = enicpmd_mtu_set,
1023         .vlan_filter_set      = NULL,
1024         .vlan_tpid_set        = NULL,
1025         .vlan_offload_set     = enicpmd_vlan_offload_set,
1026         .vlan_strip_queue_set = NULL,
1027         .rx_queue_start       = enicpmd_dev_rx_queue_start,
1028         .rx_queue_stop        = enicpmd_dev_rx_queue_stop,
1029         .tx_queue_start       = enicpmd_dev_tx_queue_start,
1030         .tx_queue_stop        = enicpmd_dev_tx_queue_stop,
1031         .rx_queue_setup       = enicpmd_dev_rx_queue_setup,
1032         .rx_queue_release     = enicpmd_dev_rx_queue_release,
1033         .rx_queue_count       = enicpmd_dev_rx_queue_count,
1034         .rx_descriptor_done   = NULL,
1035         .tx_queue_setup       = enicpmd_dev_tx_queue_setup,
1036         .tx_queue_release     = enicpmd_dev_tx_queue_release,
1037         .rx_queue_intr_enable = enicpmd_dev_rx_queue_intr_enable,
1038         .rx_queue_intr_disable = enicpmd_dev_rx_queue_intr_disable,
1039         .rxq_info_get         = enicpmd_dev_rxq_info_get,
1040         .txq_info_get         = enicpmd_dev_txq_info_get,
1041         .dev_led_on           = NULL,
1042         .dev_led_off          = NULL,
1043         .flow_ctrl_get        = NULL,
1044         .flow_ctrl_set        = NULL,
1045         .priority_flow_ctrl_set = NULL,
1046         .mac_addr_add         = enicpmd_add_mac_addr,
1047         .mac_addr_remove      = enicpmd_remove_mac_addr,
1048         .mac_addr_set         = enicpmd_set_mac_addr,
1049         .set_mc_addr_list     = enicpmd_set_mc_addr_list,
1050         .filter_ctrl          = enicpmd_dev_filter_ctrl,
1051         .reta_query           = enicpmd_dev_rss_reta_query,
1052         .reta_update          = enicpmd_dev_rss_reta_update,
1053         .rss_hash_conf_get    = enicpmd_dev_rss_hash_conf_get,
1054         .rss_hash_update      = enicpmd_dev_rss_hash_update,
1055         .udp_tunnel_port_add  = enicpmd_dev_udp_tunnel_port_add,
1056         .udp_tunnel_port_del  = enicpmd_dev_udp_tunnel_port_del,
1057         .fw_version_get       = enicpmd_dev_fw_version_get,
1058 };
1059
1060 static int enic_parse_zero_one(const char *key,
1061                                const char *value,
1062                                void *opaque)
1063 {
1064         struct enic *enic;
1065         bool b;
1066
1067         enic = (struct enic *)opaque;
1068         if (strcmp(value, "0") == 0) {
1069                 b = false;
1070         } else if (strcmp(value, "1") == 0) {
1071                 b = true;
1072         } else {
1073                 dev_err(enic, "Invalid value for %s"
1074                         ": expected=0|1 given=%s\n", key, value);
1075                 return -EINVAL;
1076         }
1077         if (strcmp(key, ENIC_DEVARG_DISABLE_OVERLAY) == 0)
1078                 enic->disable_overlay = b;
1079         if (strcmp(key, ENIC_DEVARG_ENABLE_AVX2_RX) == 0)
1080                 enic->enable_avx2_rx = b;
1081         return 0;
1082 }
1083
1084 static int enic_parse_ig_vlan_rewrite(__rte_unused const char *key,
1085                                       const char *value,
1086                                       void *opaque)
1087 {
1088         struct enic *enic;
1089
1090         enic = (struct enic *)opaque;
1091         if (strcmp(value, "trunk") == 0) {
1092                 /* Trunk mode: always tag */
1093                 enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_DEFAULT_TRUNK;
1094         } else if (strcmp(value, "untag") == 0) {
1095                 /* Untag default VLAN mode: untag if VLAN = default VLAN */
1096                 enic->ig_vlan_rewrite_mode =
1097                         IG_VLAN_REWRITE_MODE_UNTAG_DEFAULT_VLAN;
1098         } else if (strcmp(value, "priority") == 0) {
1099                 /*
1100                  * Priority-tag default VLAN mode: priority tag (VLAN header
1101                  * with ID=0) if VLAN = default
1102                  */
1103                 enic->ig_vlan_rewrite_mode =
1104                         IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN;
1105         } else if (strcmp(value, "pass") == 0) {
1106                 /* Pass through mode: do not touch tags */
1107                 enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
1108         } else {
1109                 dev_err(enic, "Invalid value for " ENIC_DEVARG_IG_VLAN_REWRITE
1110                         ": expected=trunk|untag|priority|pass given=%s\n",
1111                         value);
1112                 return -EINVAL;
1113         }
1114         return 0;
1115 }
1116
1117 static int enic_check_devargs(struct rte_eth_dev *dev)
1118 {
1119         static const char *const valid_keys[] = {
1120                 ENIC_DEVARG_DISABLE_OVERLAY,
1121                 ENIC_DEVARG_ENABLE_AVX2_RX,
1122                 ENIC_DEVARG_IG_VLAN_REWRITE,
1123                 NULL};
1124         struct enic *enic = pmd_priv(dev);
1125         struct rte_kvargs *kvlist;
1126
1127         ENICPMD_FUNC_TRACE();
1128
1129         enic->disable_overlay = false;
1130         enic->enable_avx2_rx = false;
1131         enic->ig_vlan_rewrite_mode = IG_VLAN_REWRITE_MODE_PASS_THRU;
1132         if (!dev->device->devargs)
1133                 return 0;
1134         kvlist = rte_kvargs_parse(dev->device->devargs->args, valid_keys);
1135         if (!kvlist)
1136                 return -EINVAL;
1137         if (rte_kvargs_process(kvlist, ENIC_DEVARG_DISABLE_OVERLAY,
1138                                enic_parse_zero_one, enic) < 0 ||
1139             rte_kvargs_process(kvlist, ENIC_DEVARG_ENABLE_AVX2_RX,
1140                                enic_parse_zero_one, enic) < 0 ||
1141             rte_kvargs_process(kvlist, ENIC_DEVARG_IG_VLAN_REWRITE,
1142                                enic_parse_ig_vlan_rewrite, enic) < 0) {
1143                 rte_kvargs_free(kvlist);
1144                 return -EINVAL;
1145         }
1146         rte_kvargs_free(kvlist);
1147         return 0;
1148 }
1149
1150 /* Initialize the driver
1151  * It returns 0 on success.
1152  */
1153 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
1154 {
1155         struct rte_pci_device *pdev;
1156         struct rte_pci_addr *addr;
1157         struct enic *enic = pmd_priv(eth_dev);
1158         int err;
1159
1160         ENICPMD_FUNC_TRACE();
1161
1162         enic->port_id = eth_dev->data->port_id;
1163         enic->rte_dev = eth_dev;
1164         eth_dev->dev_ops = &enicpmd_eth_dev_ops;
1165         eth_dev->rx_pkt_burst = &enic_recv_pkts;
1166         eth_dev->tx_pkt_burst = &enic_xmit_pkts;
1167         eth_dev->tx_pkt_prepare = &enic_prep_pkts;
1168         /* Let rte_eth_dev_close() release the port resources */
1169         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
1170
1171         pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
1172         rte_eth_copy_pci_info(eth_dev, pdev);
1173         enic->pdev = pdev;
1174         addr = &pdev->addr;
1175
1176         snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
1177                 addr->domain, addr->bus, addr->devid, addr->function);
1178
1179         err = enic_check_devargs(eth_dev);
1180         if (err)
1181                 return err;
1182         return enic_probe(enic);
1183 }
1184
1185 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1186         struct rte_pci_device *pci_dev)
1187 {
1188         return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
1189                 eth_enicpmd_dev_init);
1190 }
1191
1192 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
1193 {
1194         return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
1195 }
1196
1197 static struct rte_pci_driver rte_enic_pmd = {
1198         .id_table = pci_id_enic_map,
1199         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC |
1200                      RTE_PCI_DRV_IOVA_AS_VA,
1201         .probe = eth_enic_pci_probe,
1202         .remove = eth_enic_pci_remove,
1203 };
1204
1205 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
1206 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
1207 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");
1208 RTE_PMD_REGISTER_PARAM_STRING(net_enic,
1209         ENIC_DEVARG_DISABLE_OVERLAY "=0|1 "
1210         ENIC_DEVARG_ENABLE_AVX2_RX "=0|1 "
1211         ENIC_DEVARG_IG_VLAN_REWRITE "=trunk|untag|priority|pass");