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 #define ENIC_TX_OFFLOAD_CAPA (                  \
  43                 DEV_TX_OFFLOAD_VLAN_INSERT |    \
  44                 DEV_TX_OFFLOAD_IPV4_CKSUM  |    \
  45                 DEV_TX_OFFLOAD_UDP_CKSUM   |    \
  46                 DEV_TX_OFFLOAD_TCP_CKSUM   |    \
  47                 DEV_TX_OFFLOAD_TCP_TSO)
  48
  49 #define ENIC_RX_OFFLOAD_CAPA (                  \
  50                 DEV_RX_OFFLOAD_VLAN_STRIP |     \
  51                 DEV_RX_OFFLOAD_IPV4_CKSUM |     \
  52                 DEV_RX_OFFLOAD_UDP_CKSUM  |     \
  53                 DEV_RX_OFFLOAD_TCP_CKSUM)
  54
  55 RTE_INIT(enicpmd_init_log);
  56 static void
  57 enicpmd_init_log(void)
  58 {
  59         enicpmd_logtype_init = rte_log_register("pmd.net.enic.init");
  60         if (enicpmd_logtype_init >= 0)
  61                 rte_log_set_level(enicpmd_logtype_init, RTE_LOG_NOTICE);
  62         enicpmd_logtype_flow = rte_log_register("pmd.net.enic.flow");
  63         if (enicpmd_logtype_flow >= 0)
  64                 rte_log_set_level(enicpmd_logtype_flow, RTE_LOG_NOTICE);
  65 }
  66
  67 static int
  68 enicpmd_fdir_ctrl_func(struct rte_eth_dev *eth_dev,
  69                         enum rte_filter_op filter_op, void *arg)
  70 {
  71         struct enic *enic = pmd_priv(eth_dev);
  72         int ret = 0;
  73
  74         ENICPMD_FUNC_TRACE();
  75         if (filter_op == RTE_ETH_FILTER_NOP)
  76                 return 0;
  77
  78         if (arg == NULL && filter_op != RTE_ETH_FILTER_FLUSH)
  79                 return -EINVAL;
  80
  81         switch (filter_op) {
  82         case RTE_ETH_FILTER_ADD:
  83         case RTE_ETH_FILTER_UPDATE:
  84                 ret = enic_fdir_add_fltr(enic,
  85                         (struct rte_eth_fdir_filter *)arg);
  86                 break;
  87
  88         case RTE_ETH_FILTER_DELETE:
  89                 ret = enic_fdir_del_fltr(enic,
  90                         (struct rte_eth_fdir_filter *)arg);
  91                 break;
  92
  93         case RTE_ETH_FILTER_STATS:
  94                 enic_fdir_stats_get(enic, (struct rte_eth_fdir_stats *)arg);
  95                 break;
  96
  97         case RTE_ETH_FILTER_FLUSH:
  98                 dev_warning(enic, "unsupported operation %u", filter_op);
  99                 ret = -ENOTSUP;
 100                 break;
 101         case RTE_ETH_FILTER_INFO:
 102                 enic_fdir_info_get(enic, (struct rte_eth_fdir_info *)arg);
 103                 break;
 104         default:
 105                 dev_err(enic, "unknown operation %u", filter_op);
 106                 ret = -EINVAL;
 107                 break;
 108         }
 109         return ret;
 110 }
 111
 112 static int
 113 enicpmd_dev_filter_ctrl(struct rte_eth_dev *dev,
 114                      enum rte_filter_type filter_type,
 115                      enum rte_filter_op filter_op,
 116                      void *arg)
 117 {
 118         int ret = 0;
 119
 120         ENICPMD_FUNC_TRACE();
 121
 122         switch (filter_type) {
 123         case RTE_ETH_FILTER_GENERIC:
 124                 if (filter_op != RTE_ETH_FILTER_GET)
 125                         return -EINVAL;
 126                 *(const void **)arg = &enic_flow_ops;
 127                 break;
 128         case RTE_ETH_FILTER_FDIR:
 129                 ret = enicpmd_fdir_ctrl_func(dev, filter_op, arg);
 130                 break;
 131         default:
 132                 dev_warning(enic, "Filter type (%d) not supported",
 133                         filter_type);
 134                 ret = -EINVAL;
 135                 break;
 136         }
 137
 138         return ret;
 139 }
 140
 141 static void enicpmd_dev_tx_queue_release(void *txq)
 142 {
 143         ENICPMD_FUNC_TRACE();
 144
 145         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 146                 return;
 147
 148         enic_free_wq(txq);
 149 }
 150
 151 static int enicpmd_dev_setup_intr(struct enic *enic)
 152 {
 153         int ret;
 154         unsigned int index;
 155
 156         ENICPMD_FUNC_TRACE();
 157
 158         /* Are we done with the init of all the queues? */
 159         for (index = 0; index < enic->cq_count; index++) {
 160                 if (!enic->cq[index].ctrl)
 161                         break;
 162         }
 163         if (enic->cq_count != index)
 164                 return 0;
 165         for (index = 0; index < enic->wq_count; index++) {
 166                 if (!enic->wq[index].ctrl)
 167                         break;
 168         }
 169         if (enic->wq_count != index)
 170                 return 0;
 171         /* check start of packet (SOP) RQs only in case scatter is disabled. */
 172         for (index = 0; index < enic->rq_count; index++) {
 173                 if (!enic->rq[enic_rte_rq_idx_to_sop_idx(index)].ctrl)
 174                         break;
 175         }
 176         if (enic->rq_count != index)
 177                 return 0;
 178
 179         ret = enic_alloc_intr_resources(enic);
 180         if (ret) {
 181                 dev_err(enic, "alloc intr failed\n");
 182                 return ret;
 183         }
 184         enic_init_vnic_resources(enic);
 185
 186         ret = enic_setup_finish(enic);
 187         if (ret)
 188                 dev_err(enic, "setup could not be finished\n");
 189
 190         return ret;
 191 }
 192
 193 static int enicpmd_dev_tx_queue_setup(struct rte_eth_dev *eth_dev,
 194         uint16_t queue_idx,
 195         uint16_t nb_desc,
 196         unsigned int socket_id,
 197         __rte_unused const struct rte_eth_txconf *tx_conf)
 198 {
 199         int ret;
 200         struct enic *enic = pmd_priv(eth_dev);
 201
 202         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 203                 return -E_RTE_SECONDARY;
 204
 205         ENICPMD_FUNC_TRACE();
 206         RTE_ASSERT(queue_idx < enic->conf_wq_count);
 207         eth_dev->data->tx_queues[queue_idx] = (void *)&enic->wq[queue_idx];
 208
 209         ret = enic_alloc_wq(enic, queue_idx, socket_id, nb_desc);
 210         if (ret) {
 211                 dev_err(enic, "error in allocating wq\n");
 212                 return ret;
 213         }
 214
 215         return enicpmd_dev_setup_intr(enic);
 216 }
 217
 218 static int enicpmd_dev_tx_queue_start(struct rte_eth_dev *eth_dev,
 219         uint16_t queue_idx)
 220 {
 221         struct enic *enic = pmd_priv(eth_dev);
 222
 223         ENICPMD_FUNC_TRACE();
 224
 225         enic_start_wq(enic, queue_idx);
 226
 227         return 0;
 228 }
 229
 230 static int enicpmd_dev_tx_queue_stop(struct rte_eth_dev *eth_dev,
 231         uint16_t queue_idx)
 232 {
 233         int ret;
 234         struct enic *enic = pmd_priv(eth_dev);
 235
 236         ENICPMD_FUNC_TRACE();
 237
 238         ret = enic_stop_wq(enic, queue_idx);
 239         if (ret)
 240                 dev_err(enic, "error in stopping wq %d\n", queue_idx);
 241
 242         return ret;
 243 }
 244
 245 static int enicpmd_dev_rx_queue_start(struct rte_eth_dev *eth_dev,
 246         uint16_t queue_idx)
 247 {
 248         struct enic *enic = pmd_priv(eth_dev);
 249
 250         ENICPMD_FUNC_TRACE();
 251
 252         enic_start_rq(enic, queue_idx);
 253
 254         return 0;
 255 }
 256
 257 static int enicpmd_dev_rx_queue_stop(struct rte_eth_dev *eth_dev,
 258         uint16_t queue_idx)
 259 {
 260         int ret;
 261         struct enic *enic = pmd_priv(eth_dev);
 262
 263         ENICPMD_FUNC_TRACE();
 264
 265         ret = enic_stop_rq(enic, queue_idx);
 266         if (ret)
 267                 dev_err(enic, "error in stopping rq %d\n", queue_idx);
 268
 269         return ret;
 270 }
 271
 272 static void enicpmd_dev_rx_queue_release(void *rxq)
 273 {
 274         ENICPMD_FUNC_TRACE();
 275
 276         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 277                 return;
 278
 279         enic_free_rq(rxq);
 280 }
 281
 282 static uint32_t enicpmd_dev_rx_queue_count(struct rte_eth_dev *dev,
 283                                            uint16_t rx_queue_id)
 284 {
 285         struct enic *enic = pmd_priv(dev);
 286         uint32_t queue_count = 0;
 287         struct vnic_cq *cq;
 288         uint32_t cq_tail;
 289         uint16_t cq_idx;
 290         int rq_num;
 291
 292         rq_num = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
 293         cq = &enic->cq[enic_cq_rq(enic, rq_num)];
 294         cq_idx = cq->to_clean;
 295
 296         cq_tail = ioread32(&cq->ctrl->cq_tail);
 297
 298         if (cq_tail < cq_idx)
 299                 cq_tail += cq->ring.desc_count;
 300
 301         queue_count = cq_tail - cq_idx;
 302
 303         return queue_count;
 304 }
 305
 306 static int enicpmd_dev_rx_queue_setup(struct rte_eth_dev *eth_dev,
 307         uint16_t queue_idx,
 308         uint16_t nb_desc,
 309         unsigned int socket_id,
 310         const struct rte_eth_rxconf *rx_conf,
 311         struct rte_mempool *mp)
 312 {
 313         int ret;
 314         struct enic *enic = pmd_priv(eth_dev);
 315
 316         ENICPMD_FUNC_TRACE();
 317
 318         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 319                 return -E_RTE_SECONDARY;
 320         RTE_ASSERT(enic_rte_rq_idx_to_sop_idx(queue_idx) < enic->conf_rq_count);
 321         eth_dev->data->rx_queues[queue_idx] =
 322                 (void *)&enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
 323
 324         ret = enic_alloc_rq(enic, queue_idx, socket_id, mp, nb_desc,
 325                             rx_conf->rx_free_thresh);
 326         if (ret) {
 327                 dev_err(enic, "error in allocating rq\n");
 328                 return ret;
 329         }
 330
 331         return enicpmd_dev_setup_intr(enic);
 332 }
 333
 334 static int enicpmd_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 335 {
 336         struct enic *enic = pmd_priv(eth_dev);
 337         uint64_t offloads;
 338
 339         ENICPMD_FUNC_TRACE();
 340
 341         offloads = eth_dev->data->dev_conf.rxmode.offloads;
 342         if (mask & ETH_VLAN_STRIP_MASK) {
 343                 if (offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
 344                         enic->ig_vlan_strip_en = 1;
 345                 else
 346                         enic->ig_vlan_strip_en = 0;
 347         }
 348
 349         if ((mask & ETH_VLAN_FILTER_MASK) &&
 350             (offloads & DEV_RX_OFFLOAD_VLAN_FILTER)) {
 351                 dev_warning(enic,
 352                         "Configuration of VLAN filter is not supported\n");
 353         }
 354
 355         if ((mask & ETH_VLAN_EXTEND_MASK) &&
 356             (offloads & DEV_RX_OFFLOAD_VLAN_EXTEND)) {
 357                 dev_warning(enic,
 358                         "Configuration of extended VLAN is not supported\n");
 359         }
 360
 361         return enic_set_vlan_strip(enic);
 362 }
 363
 364 static int enicpmd_dev_configure(struct rte_eth_dev *eth_dev)
 365 {
 366         int ret;
 367         int mask;
 368         struct enic *enic = pmd_priv(eth_dev);
 369
 370         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 371                 return -E_RTE_SECONDARY;
 372
 373         ENICPMD_FUNC_TRACE();
 374         ret = enic_set_vnic_res(enic);
 375         if (ret) {
 376                 dev_err(enic, "Set vNIC resource num  failed, aborting\n");
 377                 return ret;
 378         }
 379
 380         enic->hw_ip_checksum = !!(eth_dev->data->dev_conf.rxmode.offloads &
 381                                   DEV_RX_OFFLOAD_CHECKSUM);
 382         /* All vlan offload masks to apply the current settings */
 383         mask = ETH_VLAN_STRIP_MASK |
 384                 ETH_VLAN_FILTER_MASK |
 385                 ETH_VLAN_EXTEND_MASK;
 386         ret = enicpmd_vlan_offload_set(eth_dev, mask);
 387         if (ret) {
 388                 dev_err(enic, "Failed to configure VLAN offloads\n");
 389                 return ret;
 390         }
 391         /*
 392          * Initialize RSS with the default reta and key. If the user key is
 393          * given (rx_adv_conf.rss_conf.rss_key), will use that instead of the
 394          * default key.
 395          */
 396         return enic_init_rss_nic_cfg(enic);
 397 }
 398
 399 /* Start the device.
 400  * It returns 0 on success.
 401  */
 402 static int enicpmd_dev_start(struct rte_eth_dev *eth_dev)
 403 {
 404         struct enic *enic = pmd_priv(eth_dev);
 405
 406         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 407                 return -E_RTE_SECONDARY;
 408
 409         ENICPMD_FUNC_TRACE();
 410         return enic_enable(enic);
 411 }
 412
 413 /*
 414  * Stop device: disable rx and tx functions to allow for reconfiguring.
 415  */
 416 static void enicpmd_dev_stop(struct rte_eth_dev *eth_dev)
 417 {
 418         struct rte_eth_link link;
 419         struct enic *enic = pmd_priv(eth_dev);
 420
 421         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 422                 return;
 423
 424         ENICPMD_FUNC_TRACE();
 425         enic_disable(enic);
 426
 427         memset(&link, 0, sizeof(link));
 428         rte_eth_linkstatus_set(eth_dev, &link);
 429 }
 430
 431 /*
 432  * Stop device.
 433  */
 434 static void enicpmd_dev_close(struct rte_eth_dev *eth_dev)
 435 {
 436         struct enic *enic = pmd_priv(eth_dev);
 437
 438         ENICPMD_FUNC_TRACE();
 439         enic_remove(enic);
 440 }
 441
 442 static int enicpmd_dev_link_update(struct rte_eth_dev *eth_dev,
 443         __rte_unused int wait_to_complete)
 444 {
 445         struct enic *enic = pmd_priv(eth_dev);
 446
 447         ENICPMD_FUNC_TRACE();
 448         return enic_link_update(enic);
 449 }
 450
 451 static int enicpmd_dev_stats_get(struct rte_eth_dev *eth_dev,
 452         struct rte_eth_stats *stats)
 453 {
 454         struct enic *enic = pmd_priv(eth_dev);
 455
 456         ENICPMD_FUNC_TRACE();
 457         return enic_dev_stats_get(enic, stats);
 458 }
 459
 460 static void enicpmd_dev_stats_reset(struct rte_eth_dev *eth_dev)
 461 {
 462         struct enic *enic = pmd_priv(eth_dev);
 463
 464         ENICPMD_FUNC_TRACE();
 465         enic_dev_stats_clear(enic);
 466 }
 467
 468 static void enicpmd_dev_info_get(struct rte_eth_dev *eth_dev,
 469         struct rte_eth_dev_info *device_info)
 470 {
 471         struct enic *enic = pmd_priv(eth_dev);
 472
 473         ENICPMD_FUNC_TRACE();
 474         device_info->pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 475         /* Scattered Rx uses two receive queues per rx queue exposed to dpdk */
 476         device_info->max_rx_queues = enic->conf_rq_count / 2;
 477         device_info->max_tx_queues = enic->conf_wq_count;
 478         device_info->min_rx_bufsize = ENIC_MIN_MTU;
 479         /* "Max" mtu is not a typo. HW receives packet sizes up to the
 480          * max mtu regardless of the current mtu (vNIC's mtu). vNIC mtu is
 481          * a hint to the driver to size receive buffers accordingly so that
 482          * larger-than-vnic-mtu packets get truncated.. For DPDK, we let
 483          * the user decide the buffer size via rxmode.max_rx_pkt_len, basically
 484          * ignoring vNIC mtu.
 485          */
 486         device_info->max_rx_pktlen = enic_mtu_to_max_rx_pktlen(enic->max_mtu);
 487         device_info->max_mac_addrs = ENIC_MAX_MAC_ADDR;
 488         device_info->rx_offload_capa = ENIC_RX_OFFLOAD_CAPA;
 489         device_info->tx_offload_capa = ENIC_TX_OFFLOAD_CAPA;
 490         device_info->default_rxconf = (struct rte_eth_rxconf) {
 491                 .rx_free_thresh = ENIC_DEFAULT_RX_FREE_THRESH
 492         };
 493         device_info->reta_size = enic->reta_size;
 494         device_info->hash_key_size = enic->hash_key_size;
 495         device_info->flow_type_rss_offloads = enic->flow_type_rss_offloads;
 496 }
 497
 498 static const uint32_t *enicpmd_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 499 {
 500         static const uint32_t ptypes[] = {
 501                 RTE_PTYPE_L2_ETHER,
 502                 RTE_PTYPE_L2_ETHER_VLAN,
 503                 RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
 504                 RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
 505                 RTE_PTYPE_L4_TCP,
 506                 RTE_PTYPE_L4_UDP,
 507                 RTE_PTYPE_L4_FRAG,
 508                 RTE_PTYPE_L4_NONFRAG,
 509                 RTE_PTYPE_UNKNOWN
 510         };
 511
 512         if (dev->rx_pkt_burst == enic_recv_pkts)
 513                 return ptypes;
 514         return NULL;
 515 }
 516
 517 static void enicpmd_dev_promiscuous_enable(struct rte_eth_dev *eth_dev)
 518 {
 519         struct enic *enic = pmd_priv(eth_dev);
 520
 521         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 522                 return;
 523
 524         ENICPMD_FUNC_TRACE();
 525
 526         enic->promisc = 1;
 527         enic_add_packet_filter(enic);
 528 }
 529
 530 static void enicpmd_dev_promiscuous_disable(struct rte_eth_dev *eth_dev)
 531 {
 532         struct enic *enic = pmd_priv(eth_dev);
 533
 534         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 535                 return;
 536
 537         ENICPMD_FUNC_TRACE();
 538         enic->promisc = 0;
 539         enic_add_packet_filter(enic);
 540 }
 541
 542 static void enicpmd_dev_allmulticast_enable(struct rte_eth_dev *eth_dev)
 543 {
 544         struct enic *enic = pmd_priv(eth_dev);
 545
 546         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 547                 return;
 548
 549         ENICPMD_FUNC_TRACE();
 550         enic->allmulti = 1;
 551         enic_add_packet_filter(enic);
 552 }
 553
 554 static void enicpmd_dev_allmulticast_disable(struct rte_eth_dev *eth_dev)
 555 {
 556         struct enic *enic = pmd_priv(eth_dev);
 557
 558         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 559                 return;
 560
 561         ENICPMD_FUNC_TRACE();
 562         enic->allmulti = 0;
 563         enic_add_packet_filter(enic);
 564 }
 565
 566 static int enicpmd_add_mac_addr(struct rte_eth_dev *eth_dev,
 567         struct ether_addr *mac_addr,
 568         __rte_unused uint32_t index, __rte_unused uint32_t pool)
 569 {
 570         struct enic *enic = pmd_priv(eth_dev);
 571
 572         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 573                 return -E_RTE_SECONDARY;
 574
 575         ENICPMD_FUNC_TRACE();
 576         return enic_set_mac_address(enic, mac_addr->addr_bytes);
 577 }
 578
 579 static void enicpmd_remove_mac_addr(struct rte_eth_dev *eth_dev, uint32_t index)
 580 {
 581         struct enic *enic = pmd_priv(eth_dev);
 582
 583         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 584                 return;
 585
 586         ENICPMD_FUNC_TRACE();
 587         enic_del_mac_address(enic, index);
 588 }
 589
 590 static int enicpmd_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu)
 591 {
 592         struct enic *enic = pmd_priv(eth_dev);
 593
 594         ENICPMD_FUNC_TRACE();
 595         return enic_set_mtu(enic, mtu);
 596 }
 597
 598 static int enicpmd_dev_rss_reta_query(struct rte_eth_dev *dev,
 599                                       struct rte_eth_rss_reta_entry64
 600                                       *reta_conf,
 601                                       uint16_t reta_size)
 602 {
 603         struct enic *enic = pmd_priv(dev);
 604         uint16_t i, idx, shift;
 605
 606         ENICPMD_FUNC_TRACE();
 607         if (reta_size != ENIC_RSS_RETA_SIZE) {
 608                 dev_err(enic, "reta_query: wrong reta_size. given=%u expected=%u\n",
 609                         reta_size, ENIC_RSS_RETA_SIZE);
 610                 return -EINVAL;
 611         }
 612
 613         for (i = 0; i < reta_size; i++) {
 614                 idx = i / RTE_RETA_GROUP_SIZE;
 615                 shift = i % RTE_RETA_GROUP_SIZE;
 616                 if (reta_conf[idx].mask & (1ULL << shift))
 617                         reta_conf[idx].reta[shift] = enic_sop_rq_idx_to_rte_idx(
 618                                 enic->rss_cpu.cpu[i / 4].b[i % 4]);
 619         }
 620
 621         return 0;
 622 }
 623
 624 static int enicpmd_dev_rss_reta_update(struct rte_eth_dev *dev,
 625                                        struct rte_eth_rss_reta_entry64
 626                                        *reta_conf,
 627                                        uint16_t reta_size)
 628 {
 629         struct enic *enic = pmd_priv(dev);
 630         union vnic_rss_cpu rss_cpu;
 631         uint16_t i, idx, shift;
 632
 633         ENICPMD_FUNC_TRACE();
 634         if (reta_size != ENIC_RSS_RETA_SIZE) {
 635                 dev_err(enic, "reta_update: wrong reta_size. given=%u"
 636                         " expected=%u\n",
 637                         reta_size, ENIC_RSS_RETA_SIZE);
 638                 return -EINVAL;
 639         }
 640         /*
 641          * Start with the current reta and modify it per reta_conf, as we
 642          * need to push the entire reta even if we only modify one entry.
 643          */
 644         rss_cpu = enic->rss_cpu;
 645         for (i = 0; i < reta_size; i++) {
 646                 idx = i / RTE_RETA_GROUP_SIZE;
 647                 shift = i % RTE_RETA_GROUP_SIZE;
 648                 if (reta_conf[idx].mask & (1ULL << shift))
 649                         rss_cpu.cpu[i / 4].b[i % 4] =
 650                                 enic_rte_rq_idx_to_sop_idx(
 651                                         reta_conf[idx].reta[shift]);
 652         }
 653         return enic_set_rss_reta(enic, &rss_cpu);
 654 }
 655
 656 static int enicpmd_dev_rss_hash_update(struct rte_eth_dev *dev,
 657                                        struct rte_eth_rss_conf *rss_conf)
 658 {
 659         struct enic *enic = pmd_priv(dev);
 660
 661         ENICPMD_FUNC_TRACE();
 662         return enic_set_rss_conf(enic, rss_conf);
 663 }
 664
 665 static int enicpmd_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
 666                                          struct rte_eth_rss_conf *rss_conf)
 667 {
 668         struct enic *enic = pmd_priv(dev);
 669
 670         ENICPMD_FUNC_TRACE();
 671         if (rss_conf == NULL)
 672                 return -EINVAL;
 673         if (rss_conf->rss_key != NULL &&
 674             rss_conf->rss_key_len < ENIC_RSS_HASH_KEY_SIZE) {
 675                 dev_err(enic, "rss_hash_conf_get: wrong rss_key_len. given=%u"
 676                         " expected=%u+\n",
 677                         rss_conf->rss_key_len, ENIC_RSS_HASH_KEY_SIZE);
 678                 return -EINVAL;
 679         }
 680         rss_conf->rss_hf = enic->rss_hf;
 681         if (rss_conf->rss_key != NULL) {
 682                 int i;
 683                 for (i = 0; i < ENIC_RSS_HASH_KEY_SIZE; i++) {
 684                         rss_conf->rss_key[i] =
 685                                 enic->rss_key.key[i / 10].b[i % 10];
 686                 }
 687                 rss_conf->rss_key_len = ENIC_RSS_HASH_KEY_SIZE;
 688         }
 689         return 0;
 690 }
 691
 692 static void enicpmd_dev_rxq_info_get(struct rte_eth_dev *dev,
 693                                      uint16_t rx_queue_id,
 694                                      struct rte_eth_rxq_info *qinfo)
 695 {
 696         struct enic *enic = pmd_priv(dev);
 697         struct vnic_rq *rq_sop;
 698         struct vnic_rq *rq_data;
 699         struct rte_eth_rxconf *conf;
 700         uint16_t sop_queue_idx;
 701         uint16_t data_queue_idx;
 702
 703         ENICPMD_FUNC_TRACE();
 704         sop_queue_idx = enic_rte_rq_idx_to_sop_idx(rx_queue_id);
 705         data_queue_idx = enic_rte_rq_idx_to_data_idx(rx_queue_id);
 706         rq_sop = &enic->rq[sop_queue_idx];
 707         rq_data = &enic->rq[data_queue_idx]; /* valid if data_queue_enable */
 708         qinfo->mp = rq_sop->mp;
 709         qinfo->scattered_rx = rq_sop->data_queue_enable;
 710         qinfo->nb_desc = rq_sop->ring.desc_count;
 711         if (qinfo->scattered_rx)
 712                 qinfo->nb_desc += rq_data->ring.desc_count;
 713         conf = &qinfo->conf;
 714         memset(conf, 0, sizeof(*conf));
 715         conf->rx_free_thresh = rq_sop->rx_free_thresh;
 716         conf->rx_drop_en = 1;
 717         /*
 718          * Except VLAN stripping (port setting), all the checksum offloads
 719          * are always enabled.
 720          */
 721         conf->offloads = ENIC_RX_OFFLOAD_CAPA;
 722         if (!enic->ig_vlan_strip_en)
 723                 conf->offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
 724         /* rx_thresh and other fields are not applicable for enic */
 725 }
 726
 727 static void enicpmd_dev_txq_info_get(struct rte_eth_dev *dev,
 728                                      __rte_unused uint16_t tx_queue_id,
 729                                      struct rte_eth_txq_info *qinfo)
 730 {
 731         struct enic *enic = pmd_priv(dev);
 732
 733         ENICPMD_FUNC_TRACE();
 734         qinfo->nb_desc = enic->config.wq_desc_count;
 735         memset(&qinfo->conf, 0, sizeof(qinfo->conf));
 736         qinfo->conf.offloads = ENIC_TX_OFFLOAD_CAPA; /* not configurable */
 737         /* tx_thresh, and all the other fields are not applicable for enic */
 738 }
 739
 740 static int enicpmd_dev_rx_queue_intr_enable(struct rte_eth_dev *eth_dev,
 741                                             uint16_t rx_queue_id)
 742 {
 743         struct enic *enic = pmd_priv(eth_dev);
 744
 745         ENICPMD_FUNC_TRACE();
 746         vnic_intr_unmask(&enic->intr[rx_queue_id + ENICPMD_RXQ_INTR_OFFSET]);
 747         return 0;
 748 }
 749
 750 static int enicpmd_dev_rx_queue_intr_disable(struct rte_eth_dev *eth_dev,
 751                                              uint16_t rx_queue_id)
 752 {
 753         struct enic *enic = pmd_priv(eth_dev);
 754
 755         ENICPMD_FUNC_TRACE();
 756         vnic_intr_mask(&enic->intr[rx_queue_id + ENICPMD_RXQ_INTR_OFFSET]);
 757         return 0;
 758 }
 759
 760 static const struct eth_dev_ops enicpmd_eth_dev_ops = {
 761         .dev_configure        = enicpmd_dev_configure,
 762         .dev_start            = enicpmd_dev_start,
 763         .dev_stop             = enicpmd_dev_stop,
 764         .dev_set_link_up      = NULL,
 765         .dev_set_link_down    = NULL,
 766         .dev_close            = enicpmd_dev_close,
 767         .promiscuous_enable   = enicpmd_dev_promiscuous_enable,
 768         .promiscuous_disable  = enicpmd_dev_promiscuous_disable,
 769         .allmulticast_enable  = enicpmd_dev_allmulticast_enable,
 770         .allmulticast_disable = enicpmd_dev_allmulticast_disable,
 771         .link_update          = enicpmd_dev_link_update,
 772         .stats_get            = enicpmd_dev_stats_get,
 773         .stats_reset          = enicpmd_dev_stats_reset,
 774         .queue_stats_mapping_set = NULL,
 775         .dev_infos_get        = enicpmd_dev_info_get,
 776         .dev_supported_ptypes_get = enicpmd_dev_supported_ptypes_get,
 777         .mtu_set              = enicpmd_mtu_set,
 778         .vlan_filter_set      = NULL,
 779         .vlan_tpid_set        = NULL,
 780         .vlan_offload_set     = enicpmd_vlan_offload_set,
 781         .vlan_strip_queue_set = NULL,
 782         .rx_queue_start       = enicpmd_dev_rx_queue_start,
 783         .rx_queue_stop        = enicpmd_dev_rx_queue_stop,
 784         .tx_queue_start       = enicpmd_dev_tx_queue_start,
 785         .tx_queue_stop        = enicpmd_dev_tx_queue_stop,
 786         .rx_queue_setup       = enicpmd_dev_rx_queue_setup,
 787         .rx_queue_release     = enicpmd_dev_rx_queue_release,
 788         .rx_queue_count       = enicpmd_dev_rx_queue_count,
 789         .rx_descriptor_done   = NULL,
 790         .tx_queue_setup       = enicpmd_dev_tx_queue_setup,
 791         .tx_queue_release     = enicpmd_dev_tx_queue_release,
 792         .rx_queue_intr_enable = enicpmd_dev_rx_queue_intr_enable,
 793         .rx_queue_intr_disable = enicpmd_dev_rx_queue_intr_disable,
 794         .rxq_info_get         = enicpmd_dev_rxq_info_get,
 795         .txq_info_get         = enicpmd_dev_txq_info_get,
 796         .dev_led_on           = NULL,
 797         .dev_led_off          = NULL,
 798         .flow_ctrl_get        = NULL,
 799         .flow_ctrl_set        = NULL,
 800         .priority_flow_ctrl_set = NULL,
 801         .mac_addr_add         = enicpmd_add_mac_addr,
 802         .mac_addr_remove      = enicpmd_remove_mac_addr,
 803         .filter_ctrl          = enicpmd_dev_filter_ctrl,
 804         .reta_query           = enicpmd_dev_rss_reta_query,
 805         .reta_update          = enicpmd_dev_rss_reta_update,
 806         .rss_hash_conf_get    = enicpmd_dev_rss_hash_conf_get,
 807         .rss_hash_update      = enicpmd_dev_rss_hash_update,
 808 };
 809
 810 struct enic *enicpmd_list_head = NULL;
 811 /* Initialize the driver
 812  * It returns 0 on success.
 813  */
 814 static int eth_enicpmd_dev_init(struct rte_eth_dev *eth_dev)
 815 {
 816         struct rte_pci_device *pdev;
 817         struct rte_pci_addr *addr;
 818         struct enic *enic = pmd_priv(eth_dev);
 819
 820         ENICPMD_FUNC_TRACE();
 821
 822         enic->port_id = eth_dev->data->port_id;
 823         enic->rte_dev = eth_dev;
 824         eth_dev->dev_ops = &enicpmd_eth_dev_ops;
 825         eth_dev->rx_pkt_burst = &enic_recv_pkts;
 826         eth_dev->tx_pkt_burst = &enic_xmit_pkts;
 827         eth_dev->tx_pkt_prepare = &enic_prep_pkts;
 828
 829         pdev = RTE_ETH_DEV_TO_PCI(eth_dev);
 830         rte_eth_copy_pci_info(eth_dev, pdev);
 831         enic->pdev = pdev;
 832         addr = &pdev->addr;
 833
 834         snprintf(enic->bdf_name, ENICPMD_BDF_LENGTH, "%04x:%02x:%02x.%x",
 835                 addr->domain, addr->bus, addr->devid, addr->function);
 836
 837         return enic_probe(enic);
 838 }
 839
 840 static int eth_enic_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 841         struct rte_pci_device *pci_dev)
 842 {
 843         return rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct enic),
 844                 eth_enicpmd_dev_init);
 845 }
 846
 847 static int eth_enic_pci_remove(struct rte_pci_device *pci_dev)
 848 {
 849         return rte_eth_dev_pci_generic_remove(pci_dev, NULL);
 850 }
 851
 852 static struct rte_pci_driver rte_enic_pmd = {
 853         .id_table = pci_id_enic_map,
 854         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 855         .probe = eth_enic_pci_probe,
 856         .remove = eth_enic_pci_remove,
 857 };
 858
 859 RTE_PMD_REGISTER_PCI(net_enic, rte_enic_pmd);
 860 RTE_PMD_REGISTER_PCI_TABLE(net_enic, pci_id_enic_map);
 861 RTE_PMD_REGISTER_KMOD_DEP(net_enic, "* igb_uio | uio_pci_generic | vfio-pci");