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_string_fns.h>
  15
  16 #include "vnic_intr.h"
  17 #include "vnic_cq.h"
  18 #include "vnic_wq.h"
  19 #include "vnic_rq.h"
  20 #include "vnic_enet.h"
  21 #include "enic.h"
  22
  23 int enicpmd_logtype_init;
  24 int enicpmd_logtype_flow;
  25
  26 #define PMD_INIT_LOG(level, fmt, args...) \
  27         rte_log(RTE_LOG_ ## level, enicpmd_logtype_init, \
  28                 "%s" fmt "\n", __func__, ##args)
  29
  30 #define ENICPMD_FUNC_TRACE() PMD_INIT_LOG(DEBUG, " >>")
  31
  32 /*
  33  * The set of PCI devices this driver supports
  34  */
  35 #define CISCO_PCI_VENDOR_ID 0x1137
  36 static const struct rte_pci_id pci_id_enic_map[] = {
  37         { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET) },
  38         { RTE_PCI_DEVICE(CISCO_PCI_VENDOR_ID, PCI_DEVICE_ID_CISCO_VIC_ENET_VF) },
  39         {.vendor_id = 0, /* sentinel */},
  40 };
  41
  42 RTE_INIT(enicpmd_init_log);
  43 static void
  44 enicpmd_init_log(void)
  45 {
  46         enicpmd_logtype_init = rte_log_register("pmd.net.enic.init");
  47         if (enicpmd_logtype_init >= 0)
  48                 rte_log_set_level(enicpmd_logtype_init, RTE_LOG_NOTICE);
  49         enicpmd_logtype_flow = rte_log_register("pmd.net.enic.flow");
  50         if (enicpmd_logtype_flow >= 0)
  51                 rte_log_set_level(enicpmd_logtype_flow, RTE_LOG_NOTICE);
  52 }
  53
  54 static int
  55 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
  56                         enum rte_filter_op filter_op, void *arg)
  57 {
  58         struct enic *enic = pmd_priv(eth_dev);
  59         int ret = 0;
  60
  61         ENICPMD_FUNC_TRACE();
  62         if (filter_op == RTE_ETH_FILTER_NOP)
  63                 return 0;
  64
  65         if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
  66                 return -EINVAL;
  67
  68         switch (filter_op) {
  69         case RTE_ETH_FILTER_ADD:
  70         case RTE_ETH_FILTER_UPDATE:
  71                 ret = enic_fdir_add_fltr(enic,
  72                         (struct rte_eth_fdir_filter *)arg);
  73                 break;
  74
  75         case RTE_ETH_FILTER_DELETE:
  76                 ret = enic_fdir_del_fltr(enic,
  77                         (struct rte_eth_fdir_filter *)arg);
  78                 break;
  79
  80         case RTE_ETH_FILTER_STATS:
  81                 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
  82                 break;
  83
  84         case RTE_ETH_FILTER_FLUSH:
  85                 dev_warning(enic, "unsupported operation %u", filter_op);
  86                 ret = -ENOTSUP;
  87                 break;
  88         case RTE_ETH_FILTER_INFO:
  89                 enic_fdir_info_get(enic, (struct rte_eth_fdir_info *)arg);
  90                 break;
  91         default:
  92                 dev_err(enic, "unknown operation %u", filter_op);
  93                 ret = -EINVAL;
  94                 break;
  95         }
  96         return ret;
  97 }
  98
  99 static int
 100 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
 101                      enum rte_filter_type filter_type,
 102                      enum rte_filter_op filter_op,
 103                      void *arg)
 104 {
 105         int ret = 0;
 106
 107         ENICPMD_FUNC_TRACE();
 108
 109         switch (filter_type) {
 110         case RTE_ETH_FILTER_GENERIC:
 111                 if (filter_op != RTE_ETH_FILTER_GET)
 112                         return -EINVAL;
 113                 *(const void **)arg = &enic_flow_ops;
 114                 break;
 115         case RTE_ETH_FILTER_FDIR:
 116                 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
 117                 break;
 118         default:
 119                 dev_warning(enic, "Filter type (%d) not supported",
 120                         filter_type);
 121                 ret = -EINVAL;
 122                 break;
 123         }
 124
 125         return ret;
 126 }
 127
 128 static void enicpmd_dev_tx_queue_release(void *txq)
 129 {
 130         ENICPMD_FUNC_TRACE();
 131
 132         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 133                 return;
 134
 135         enic_free_wq(txq);
 136 }
 137
 138 static int enicpmd_dev_setup_intr(struct enic *enic)
 139 {
 140         int ret;
 141         unsigned int index;
 142
 143         ENICPMD_FUNC_TRACE();
 144
 145         /* Are we done with the init of all the queues? */
 146         for (index = 0; index < enic->cq_count; index++) {
 147                 if (!enic->cq[index].ctrl)
 148                         break;
 149         }
 150         if (enic->cq_count != index)
 151                 return 0;
 152         for (index = 0; index < enic->wq_count; index++) {
 153                 if (!enic->wq[index].ctrl)
 154                         break;
 155         }
 156         if (enic->wq_count != index)
 157                 return 0;
 158         /* check start of packet (SOP) RQs only in case scatter is disabled. */
 159         for (index = 0; index < enic->rq_count; index++) {
 160                 if (!enic->rq[enic_rte_rq_idx_to_sop_idx(index)].ctrl)
 161                         break;
 162         }
 163         if (enic->rq_count != index)
 164                 return 0;
 165
 166         ret = enic_alloc_intr_resources(enic);
 167         if (ret) {
 168                 dev_err(enic, "alloc intr failed\n");
 169                 return ret;
 170         }
 171         enic_init_vnic_resources(enic);
 172
 173         ret = enic_setup_finish(enic);
 174         if (ret)
 175                 dev_err(enic, "setup could not be finished\n");
 176
 177         return ret;
 178 }
 179
 180 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
 181         uint16_t queue_idx,
 182         uint16_t nb_desc,
 183         unsigned int socket_id,
 184         __rte_unused const struct rte_eth_txconf *tx_conf)
 185 {
 186         int ret;
 187         struct enic *enic = pmd_priv(eth_dev);
 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         eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
 195
 196         ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
 197         if (ret) {
 198                 dev_err(enic, "error in allocating wq\n");
 199                 return ret;
 200         }
 201
 202         return enicpmd_dev_setup_intr(enic);
 203 }
 204
 205 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
 206         uint16_t queue_idx)
 207 {
 208         struct enic *enic = pmd_priv(eth_dev);
 209
 210         ENICPMD_FUNC_TRACE();
 211
 212         enic_start_wq(enic, queue_idx);
 213
 214         return 0;
 215 }
 216
 217 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
 218         uint16_t queue_idx)
 219 {
 220         int ret;
 221         struct enic *enic = pmd_priv(eth_dev);
 222
 223         ENICPMD_FUNC_TRACE();
 224
 225         ret = enic_stop_wq(enic, queue_idx);
 226         if (ret)
 227                 dev_err(enic, "error in stopping wq %d\n", queue_idx);
 228
 229         return ret;
 230 }
 231
 232 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
 233         uint16_t queue_idx)
 234 {
 235         struct enic *enic = pmd_priv(eth_dev);
 236
 237         ENICPMD_FUNC_TRACE();
 238
 239         enic_start_rq(enic, queue_idx);
 240
 241         return 0;
 242 }
 243
 244 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
 245         uint16_t queue_idx)
 246 {
 247         int ret;
 248         struct enic *enic = pmd_priv(eth_dev);
 249
 250         ENICPMD_FUNC_TRACE();
 251
 252         ret = enic_stop_rq(enic, queue_idx);
 253         if (ret)
 254                 dev_err(enic, "error in stopping rq %d\n", queue_idx);
 255
 256         return ret;
 257 }
 258
 259 static void enicpmd_dev_rx_queue_release(void *rxq)
 260 {
 261         ENICPMD_FUNC_TRACE();
 262
 263         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 264                 return;
 265
 266         enic_free_rq(rxq);
 267 }
 268
 269 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
 270                                            uint16_t rx_queue_id)
 271 {
 272         struct enic *enic = pmd_priv(dev);
 273         uint32_t queue_count = 0;
 274         struct vnic_cq *cq;
 275         uint32_t cq_tail;
 276         uint16_t cq_idx;
 277         int rq_num;
 278
 279         rq_num = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
 280         cq = &enic->cq[enic_cq_rq(enic, rq_num)];
 281         cq_idx = cq->to_clean;
 282
 283         cq_tail = ioread32(&cq->ctrl->cq_tail);
 284
 285         if (cq_tail < cq_idx)
 286                 cq_tail += cq->ring.desc_count;
 287
 288         queue_count = cq_tail - cq_idx;
 289
 290         return queue_count;
 291 }
 292
 293 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
 294         uint16_t queue_idx,
 295         uint16_t nb_desc,
 296         unsigned int socket_id,
 297         const struct rte_eth_rxconf *rx_conf,
 298         struct rte_mempool *mp)
 299 {
 300         int ret;
 301         struct enic *enic = pmd_priv(eth_dev);
 302
 303         ENICPMD_FUNC_TRACE();
 304
 305         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 306                 return -E_RTE_SECONDARY;
 307         RTE_ASSERT(enic_rte_rq_idx_to_sop_idx(queue_idx) < enic->conf_rq_count);
 308         eth_dev->data->rx_queues[queue_idx] =
 309                 (void *)&enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
 310
 311         ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc,
 312                             rx_conf->rx_free_thresh);
 313         if (ret) {
 314                 dev_err(enic, "error in allocating rq\n");
 315                 return ret;
 316         }
 317
 318         return enicpmd_dev_setup_intr(enic);
 319 }
 320
 321 static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 322 {
 323         struct enic *enic = pmd_priv(eth_dev);
 324         uint64_t offloads;
 325
 326         ENICPMD_FUNC_TRACE();
 327
 328         offloads = eth_dev->data->dev_conf.rxmode.offloads;
 329         if (mask & ETH_VLAN_STRIP_MASK) {
 330                 if (offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 331                         enic->ig_vlan_strip_en = 1;
 332                 else
 333                         enic->ig_vlan_strip_en = 0;
 334         }
 335
 336         if ((mask & ETH_VLAN_FILTER_MASK) &&
 337             (offloads & DEV_RX_OFFLOAD_VLAN_FILTER)) {
 338                 dev_warning(enic,
 339                         "Configuration of VLAN filter is not supported\n");
 340         }
 341
 342         if ((mask & ETH_VLAN_EXTEND_MASK) &&
 343             (offloads & DEV_RX_OFFLOAD_VLAN_EXTEND)) {
 344                 dev_warning(enic,
 345                         "Configuration of extended VLAN is not supported\n");
 346         }
 347
 348         return enic_set_vlan_strip(enic);
 349 }
 350
 351 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
 352 {
 353         int ret;
 354         int mask;
 355         struct enic *enic = pmd_priv(eth_dev);
 356
 357         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 358                 return -E_RTE_SECONDARY;
 359
 360         ENICPMD_FUNC_TRACE();
 361         ret = enic_set_vnic_res(enic);
 362         if (ret) {
 363                 dev_err(enic, "Set vNIC resource num  failed, aborting\n");
 364                 return ret;
 365         }
 366
 367         enic->hw_ip_checksum = !!(eth_dev->data->dev_conf.rxmode.offloads &
 368                                   DEV_RX_OFFLOAD_CHECKSUM);
 369         /* All vlan offload masks to apply the current settings */
 370         mask = ETH_VLAN_STRIP_MASK |
 371                 ETH_VLAN_FILTER_MASK |
 372                 ETH_VLAN_EXTEND_MASK;
 373         ret = enicpmd_vlan_offload_set(eth_dev, mask);
 374         if (ret) {
 375                 dev_err(enic, "Failed to configure VLAN offloads\n");
 376                 return ret;
 377         }
 378         /*
 379          * Initialize RSS with the default reta and key. If the user key is
 380          * given (rx_adv_conf.rss_conf.rss_key), will use that instead of the
 381          * default key.
 382          */
 383         return enic_init_rss_nic_cfg(enic);
 384 }
 385
 386 /* Start the device.
 387  * It returns 0 on success.
 388  */
 389 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
 390 {
 391         struct enic *enic = pmd_priv(eth_dev);
 392
 393         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 394                 return -E_RTE_SECONDARY;
 395
 396         ENICPMD_FUNC_TRACE();
 397         return enic_enable(enic);
 398 }
 399
 400 /*
 401  * Stop device: disable rx and tx functions to allow for reconfiguring.
 402  */
 403 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
 404 {
 405         struct rte_eth_link link;
 406         struct enic *enic = pmd_priv(eth_dev);
 407
 408         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 409                 return;
 410
 411         ENICPMD_FUNC_TRACE();
 412         enic_disable(enic);
 413         memset(&link, 0, sizeof(link));
 414         rte_atomic64_cmpset((uint64_t *)&eth_dev->data->dev_link,
 415                 *(uint64_t *)&eth_dev->data->dev_link,
 416                 *(uint64_t *)&link);
 417 }
 418
 419 /*
 420  * Stop device.
 421  */
 422 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
 423 {
 424         struct enic *enic = pmd_priv(eth_dev);
 425
 426         ENICPMD_FUNC_TRACE();
 427         enic_remove(enic);
 428 }
 429
 430 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
 431         __rte_unused int wait_to_complete)
 432 {
 433         struct enic *enic = pmd_priv(eth_dev);
 434
 435         ENICPMD_FUNC_TRACE();
 436         return enic_link_update(enic);
 437 }
 438
 439 static int enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
 440         struct rte_eth_stats *stats)
 441 {
 442         struct enic *enic = pmd_priv(eth_dev);
 443
 444         ENICPMD_FUNC_TRACE();
 445         return enic_dev_stats_get(enic, stats);
 446 }
 447
 448 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
 449 {
 450         struct enic *enic = pmd_priv(eth_dev);
 451
 452         ENICPMD_FUNC_TRACE();
 453         enic_dev_stats_clear(enic);
 454 }
 455
 456 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
 457         struct rte_eth_dev_info *device_info)
 458 {
 459         struct enic *enic = pmd_priv(eth_dev);
 460
 461         ENICPMD_FUNC_TRACE();
 462         device_info->pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 463         /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
 464         device_info->max_rx_queues = enic->conf_rq_count / 2;
 465         device_info->max_tx_queues = enic->conf_wq_count;
 466         device_info->min_rx_bufsize = ENIC_MIN_MTU;
 467         /* "Max" mtu is not a typo. HW receives packet sizes up to the
 468          * max mtu regardless of the current mtu (vNIC's mtu). vNIC mtu is
 469          * a hint to the driver to size receive buffers accordingly so that
 470          * larger-than-vnic-mtu packets get truncated.. For DPDK, we let
 471          * the user decide the buffer size via rxmode.max_rx_pkt_len, basically
 472          * ignoring vNIC mtu.
 473          */
 474         device_info->max_rx_pktlen = enic_mtu_to_max_rx_pktlen(enic->max_mtu);
 475         device_info->max_mac_addrs = ENIC_MAX_MAC_ADDR;
 476         device_info->rx_offload_capa =
 477                 DEV_RX_OFFLOAD_VLAN_STRIP |
 478                 DEV_RX_OFFLOAD_IPV4_CKSUM |
 479                 DEV_RX_OFFLOAD_UDP_CKSUM  |
 480                 DEV_RX_OFFLOAD_TCP_CKSUM;
 481         device_info->tx_offload_capa =
 482                 DEV_TX_OFFLOAD_VLAN_INSERT |
 483                 DEV_TX_OFFLOAD_IPV4_CKSUM  |
 484                 DEV_TX_OFFLOAD_UDP_CKSUM   |
 485                 DEV_TX_OFFLOAD_TCP_CKSUM   |
 486                 DEV_TX_OFFLOAD_TCP_TSO;
 487         device_info->default_rxconf = (struct rte_eth_rxconf) {
 488                 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
 489         };
 490         device_info->reta_size = enic->reta_size;
 491         device_info->hash_key_size = enic->hash_key_size;
 492         device_info->flow_type_rss_offloads = enic->flow_type_rss_offloads;
 493 }
 494
 495 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 496 {
 497         static const uint32_t ptypes[] = {
 498                 RTE_PTYPE_L2_ETHER,
 499                 RTE_PTYPE_L2_ETHER_VLAN,
 500                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 501                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 502                 RTE_PTYPE_L4_TCP,
 503                 RTE_PTYPE_L4_UDP,
 504                 RTE_PTYPE_L4_FRAG,
 505                 RTE_PTYPE_L4_NONFRAG,
 506                 RTE_PTYPE_UNKNOWN
 507         };
 508
 509         if (dev->rx_pkt_burst == enic_recv_pkts)
 510                 return ptypes;
 511         return NULL;
 512 }
 513
 514 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
 515 {
 516         struct enic *enic = pmd_priv(eth_dev);
 517
 518         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 519                 return;
 520
 521         ENICPMD_FUNC_TRACE();
 522
 523         enic->promisc = 1;
 524         enic_add_packet_filter(enic);
 525 }
 526
 527 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
 528 {
 529         struct enic *enic = pmd_priv(eth_dev);
 530
 531         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 532                 return;
 533
 534         ENICPMD_FUNC_TRACE();
 535         enic->promisc = 0;
 536         enic_add_packet_filter(enic);
 537 }
 538
 539 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
 540 {
 541         struct enic *enic = pmd_priv(eth_dev);
 542
 543         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 544                 return;
 545
 546         ENICPMD_FUNC_TRACE();
 547         enic->allmulti = 1;
 548         enic_add_packet_filter(enic);
 549 }
 550
 551 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
 552 {
 553         struct enic *enic = pmd_priv(eth_dev);
 554
 555         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 556                 return;
 557
 558         ENICPMD_FUNC_TRACE();
 559         enic->allmulti = 0;
 560         enic_add_packet_filter(enic);
 561 }
 562
 563 static int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
 564         struct ether_addr *mac_addr,
 565         __rte_unused uint32_t index, __rte_unused uint32_t pool)
 566 {
 567         struct enic *enic = pmd_priv(eth_dev);
 568
 569         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 570                 return -E_RTE_SECONDARY;
 571
 572         ENICPMD_FUNC_TRACE();
 573         return enic_set_mac_address(enic, mac_addr->addr_bytes);
 574 }
 575
 576 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
 577 {
 578         struct enic *enic = pmd_priv(eth_dev);
 579
 580         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 581                 return;
 582
 583         ENICPMD_FUNC_TRACE();
 584         enic_del_mac_address(enic, index);
 585 }
 586
 587 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
 588 {
 589         struct enic *enic = pmd_priv(eth_dev);
 590
 591         ENICPMD_FUNC_TRACE();
 592         return enic_set_mtu(enic, mtu);
 593 }
 594
 595 static int enicpmd_dev_rss_reta_query(struct rte_eth_dev *dev,
 596                                       struct rte_eth_rss_reta_entry64
 597                                       *reta_conf,
 598                                       uint16_t reta_size)
 599 {
 600         struct enic *enic = pmd_priv(dev);
 601         uint16_t i, idx, shift;
 602
 603         ENICPMD_FUNC_TRACE();
 604         if (reta_size != ENIC_RSS_RETA_SIZE) {
 605                 dev_err(enic, "reta_query: wrong reta_size. given=%u expected=%u\n",
 606                         reta_size, ENIC_RSS_RETA_SIZE);
 607                 return -EINVAL;
 608         }
 609
 610         for (i = 0; i < reta_size; i++) {
 611                 idx = i / RTE_RETA_GROUP_SIZE;
 612                 shift = i % RTE_RETA_GROUP_SIZE;
 613                 if (reta_conf[idx].mask & (1ULL << shift))
 614                         reta_conf[idx].reta[shift] = enic_sop_rq_idx_to_rte_idx(
 615                                 enic->rss_cpu.cpu[i / 4].b[i % 4]);
 616         }
 617
 618         return 0;
 619 }
 620
 621 static int enicpmd_dev_rss_reta_update(struct rte_eth_dev *dev,
 622                                        struct rte_eth_rss_reta_entry64
 623                                        *reta_conf,
 624                                        uint16_t reta_size)
 625 {
 626         struct enic *enic = pmd_priv(dev);
 627         union vnic_rss_cpu rss_cpu;
 628         uint16_t i, idx, shift;
 629
 630         ENICPMD_FUNC_TRACE();
 631         if (reta_size != ENIC_RSS_RETA_SIZE) {
 632                 dev_err(enic, "reta_update: wrong reta_size. given=%u"
 633                         " expected=%u\n",
 634                         reta_size, ENIC_RSS_RETA_SIZE);
 635                 return -EINVAL;
 636         }
 637         /*
 638          * Start with the current reta and modify it per reta_conf, as we
 639          * need to push the entire reta even if we only modify one entry.
 640          */
 641         rss_cpu = enic->rss_cpu;
 642         for (i = 0; i < reta_size; i++) {
 643                 idx = i / RTE_RETA_GROUP_SIZE;
 644                 shift = i % RTE_RETA_GROUP_SIZE;
 645                 if (reta_conf[idx].mask & (1ULL << shift))
 646                         rss_cpu.cpu[i / 4].b[i % 4] =
 647                                 enic_rte_rq_idx_to_sop_idx(
 648                                         reta_conf[idx].reta[shift]);
 649         }
 650         return enic_set_rss_reta(enic, &rss_cpu);
 651 }
 652
 653 static int enicpmd_dev_rss_hash_update(struct rte_eth_dev *dev,
 654                                        struct rte_eth_rss_conf *rss_conf)
 655 {
 656         struct enic *enic = pmd_priv(dev);
 657
 658         ENICPMD_FUNC_TRACE();
 659         return enic_set_rss_conf(enic, rss_conf);
 660 }
 661
 662 static int enicpmd_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 663                                          struct rte_eth_rss_conf *rss_conf)
 664 {
 665         struct enic *enic = pmd_priv(dev);
 666
 667         ENICPMD_FUNC_TRACE();
 668         if (rss_conf == NULL)
 669                 return -EINVAL;
 670         if (rss_conf->rss_key != NULL &&
 671             rss_conf->rss_key_len < ENIC_RSS_HASH_KEY_SIZE) {
 672                 dev_err(enic, "rss_hash_conf_get: wrong rss_key_len. given=%u"
 673                         " expected=%u+\n",
 674                         rss_conf->rss_key_len, ENIC_RSS_HASH_KEY_SIZE);
 675                 return -EINVAL;
 676         }
 677         rss_conf->rss_hf = enic->rss_hf;
 678         if (rss_conf->rss_key != NULL) {
 679                 int i;
 680                 for (i = 0; i < ENIC_RSS_HASH_KEY_SIZE; i++) {
 681                         rss_conf->rss_key[i] =
 682                                 enic->rss_key.key[i / 10].b[i % 10];
 683                 }
 684                 rss_conf->rss_key_len = ENIC_RSS_HASH_KEY_SIZE;
 685         }
 686         return 0;
 687 }
 688
 689 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
 690         .dev_configure        = enicpmd_dev_configure,
 691         .dev_start            = enicpmd_dev_start,
 692         .dev_stop             = enicpmd_dev_stop,
 693         .dev_set_link_up      = NULL,
 694         .dev_set_link_down    = NULL,
 695         .dev_close            = enicpmd_dev_close,
 696         .promiscuous_enable   = enicpmd_dev_promiscuous_enable,
 697         .promiscuous_disable  = enicpmd_dev_promiscuous_disable,
 698         .allmulticast_enable  = enicpmd_dev_allmulticast_enable,
 699         .allmulticast_disable = enicpmd_dev_allmulticast_disable,
 700         .link_update          = enicpmd_dev_link_update,
 701         .stats_get            = enicpmd_dev_stats_get,
 702         .stats_reset          = enicpmd_dev_stats_reset,
 703         .queue_stats_mapping_set = NULL,
 704         .dev_infos_get        = enicpmd_dev_info_get,
 705         .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
 706         .mtu_set              = enicpmd_mtu_set,
 707         .vlan_filter_set      = NULL,
 708         .vlan_tpid_set        = NULL,
 709         .vlan_offload_set     = enicpmd_vlan_offload_set,
 710         .vlan_strip_queue_set = NULL,
 711         .rx_queue_start       = enicpmd_dev_rx_queue_start,
 712         .rx_queue_stop        = enicpmd_dev_rx_queue_stop,
 713         .tx_queue_start       = enicpmd_dev_tx_queue_start,
 714         .tx_queue_stop        = enicpmd_dev_tx_queue_stop,
 715         .rx_queue_setup       = enicpmd_dev_rx_queue_setup,
 716         .rx_queue_release     = enicpmd_dev_rx_queue_release,
 717         .rx_queue_count       = enicpmd_dev_rx_queue_count,
 718         .rx_descriptor_done   = NULL,
 719         .tx_queue_setup       = enicpmd_dev_tx_queue_setup,
 720         .tx_queue_release     = enicpmd_dev_tx_queue_release,
 721         .dev_led_on           = NULL,
 722         .dev_led_off          = NULL,
 723         .flow_ctrl_get        = NULL,
 724         .flow_ctrl_set        = NULL,
 725         .priority_flow_ctrl_set = NULL,
 726         .mac_addr_add         = enicpmd_add_mac_addr,
 727         .mac_addr_remove      = enicpmd_remove_mac_addr,
 728         .filter_ctrl          = enicpmd_dev_filter_ctrl,
 729         .reta_query           = enicpmd_dev_rss_reta_query,
 730         .reta_update          = enicpmd_dev_rss_reta_update,
 731         .rss_hash_conf_get    = enicpmd_dev_rss_hash_conf_get,
 732         .rss_hash_update      = enicpmd_dev_rss_hash_update,
 733 };
 734
 735 struct enic *enicpmd_list_head = NULL;
 736 /* Initialize the driver
 737  * It returns 0 on success.
 738  */
 739 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
 740 {
 741         struct rte_pci_device *pdev;
 742         struct rte_pci_addr *addr;
 743         struct enic *enic = pmd_priv(eth_dev);
 744
 745         ENICPMD_FUNC_TRACE();
 746
 747         enic->port_id = eth_dev->data->port_id;
 748         enic->rte_dev = eth_dev;
 749         eth_dev->dev_ops = &enicpmd_eth_dev_ops;
 750         eth_dev->rx_pkt_burst = &enic_recv_pkts;
 751         eth_dev->tx_pkt_burst = &enic_xmit_pkts;
 752         eth_dev->tx_pkt_prepare = &enic_prep_pkts;
 753
 754         pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
 755         rte_eth_copy_pci_info(eth_dev, pdev);
 756         enic->pdev = pdev;
 757         addr = &pdev->addr;
 758
 759         snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
 760                 addr->domain, addr->bus, addr->devid, addr->function);
 761
 762         return enic_probe(enic);
 763 }
 764
 765 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 766         struct rte_pci_device *pci_dev)
 767 {
 768         return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
 769                 eth_enicpmd_dev_init);
 770 }
 771
 772 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
 773 {
 774         return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
 775 }
 776
 777 static struct rte_pci_driver rte_enic_pmd = {
 778         .id_table = pci_id_enic_map,
 779         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 780         .probe = eth_enic_pci_probe,
 781         .remove = eth_enic_pci_remove,
 782 };
 783
 784 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
 785 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
 786 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");