drivers/net/enetc/enetc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2018-2020 NXP
   3  */
   4
   5 #include <stdbool.h>
   6 #include <rte_ethdev_pci.h>
   7 #include <rte_random.h>
   8 #include <dpaax_iova_table.h>
   9
  10 #include "enetc_logs.h"
  11 #include "enetc.h"
  12
  13 static int
  14 enetc_dev_start(struct rte_eth_dev *dev)
  15 {
  16         struct enetc_eth_hw *hw =
  17                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
  18         struct enetc_hw *enetc_hw = &hw->hw;
  19         uint32_t val;
  20
  21         PMD_INIT_FUNC_TRACE();
  22         val = enetc_port_rd(enetc_hw, ENETC_PM0_CMD_CFG);
  23         enetc_port_wr(enetc_hw, ENETC_PM0_CMD_CFG,
  24                       val | ENETC_PM0_TX_EN | ENETC_PM0_RX_EN);
  25
  26         /* Enable port */
  27         val = enetc_port_rd(enetc_hw, ENETC_PMR);
  28         enetc_port_wr(enetc_hw, ENETC_PMR, val | ENETC_PMR_EN);
  29
  30         /* set auto-speed for RGMII */
  31         if (enetc_port_rd(enetc_hw, ENETC_PM0_IF_MODE) & ENETC_PMO_IFM_RG) {
  32                 enetc_port_wr(enetc_hw, ENETC_PM0_IF_MODE,
  33                               ENETC_PM0_IFM_RGAUTO);
  34                 enetc_port_wr(enetc_hw, ENETC_PM1_IF_MODE,
  35                               ENETC_PM0_IFM_RGAUTO);
  36         }
  37         if (enetc_global_rd(enetc_hw,
  38                             ENETC_G_EPFBLPR(1)) == ENETC_G_EPFBLPR1_XGMII) {
  39                 enetc_port_wr(enetc_hw, ENETC_PM0_IF_MODE,
  40                               ENETC_PM0_IFM_XGMII);
  41                 enetc_port_wr(enetc_hw, ENETC_PM1_IF_MODE,
  42                               ENETC_PM0_IFM_XGMII);
  43         }
  44
  45         return 0;
  46 }
  47
  48 static void
  49 enetc_dev_stop(struct rte_eth_dev *dev)
  50 {
  51         struct enetc_eth_hw *hw =
  52                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
  53         struct enetc_hw *enetc_hw = &hw->hw;
  54         uint32_t val;
  55
  56         PMD_INIT_FUNC_TRACE();
  57         /* Disable port */
  58         val = enetc_port_rd(enetc_hw, ENETC_PMR);
  59         enetc_port_wr(enetc_hw, ENETC_PMR, val & (~ENETC_PMR_EN));
  60
  61         val = enetc_port_rd(enetc_hw, ENETC_PM0_CMD_CFG);
  62         enetc_port_wr(enetc_hw, ENETC_PM0_CMD_CFG,
  63                       val & (~(ENETC_PM0_TX_EN | ENETC_PM0_RX_EN)));
  64 }
  65
  66 static const uint32_t *
  67 enetc_supported_ptypes_get(struct rte_eth_dev *dev __rte_unused)
  68 {
  69         static const uint32_t ptypes[] = {
  70                 RTE_PTYPE_L2_ETHER,
  71                 RTE_PTYPE_L3_IPV4,
  72                 RTE_PTYPE_L3_IPV6,
  73                 RTE_PTYPE_L4_TCP,
  74                 RTE_PTYPE_L4_UDP,
  75                 RTE_PTYPE_L4_SCTP,
  76                 RTE_PTYPE_L4_ICMP,
  77                 RTE_PTYPE_UNKNOWN
  78         };
  79
  80         return ptypes;
  81 }
  82
  83 /* return 0 means link status changed, -1 means not changed */
  84 static int
  85 enetc_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
  86 {
  87         struct enetc_eth_hw *hw =
  88                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
  89         struct enetc_hw *enetc_hw = &hw->hw;
  90         struct rte_eth_link link;
  91         uint32_t status;
  92
  93         PMD_INIT_FUNC_TRACE();
  94
  95         memset(&link, 0, sizeof(link));
  96
  97         status = enetc_port_rd(enetc_hw, ENETC_PM0_STATUS);
  98
  99         if (status & ENETC_LINK_MODE)
 100                 link.link_duplex = ETH_LINK_FULL_DUPLEX;
 101         else
 102                 link.link_duplex = ETH_LINK_HALF_DUPLEX;
 103
 104         if (status & ENETC_LINK_STATUS)
 105                 link.link_status = ETH_LINK_UP;
 106         else
 107                 link.link_status = ETH_LINK_DOWN;
 108
 109         switch (status & ENETC_LINK_SPEED_MASK) {
 110         case ENETC_LINK_SPEED_1G:
 111                 link.link_speed = ETH_SPEED_NUM_1G;
 112                 break;
 113
 114         case ENETC_LINK_SPEED_100M:
 115                 link.link_speed = ETH_SPEED_NUM_100M;
 116                 break;
 117
 118         default:
 119         case ENETC_LINK_SPEED_10M:
 120                 link.link_speed = ETH_SPEED_NUM_10M;
 121         }
 122
 123         return rte_eth_linkstatus_set(dev, &link);
 124 }
 125
 126 static void
 127 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
 128 {
 129         char buf[RTE_ETHER_ADDR_FMT_SIZE];
 130
 131         rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
 132         ENETC_PMD_NOTICE("%s%s\n", name, buf);
 133 }
 134
 135 static int
 136 enetc_hardware_init(struct enetc_eth_hw *hw)
 137 {
 138         struct enetc_hw *enetc_hw = &hw->hw;
 139         uint32_t *mac = (uint32_t *)hw->mac.addr;
 140         uint32_t high_mac = 0;
 141         uint16_t low_mac = 0;
 142
 143         PMD_INIT_FUNC_TRACE();
 144         /* Calculating and storing the base HW addresses */
 145         hw->hw.port = (void *)((size_t)hw->hw.reg + ENETC_PORT_BASE);
 146         hw->hw.global = (void *)((size_t)hw->hw.reg + ENETC_GLOBAL_BASE);
 147
 148         /* WA for Rx lock-up HW erratum */
 149         enetc_port_wr(enetc_hw, ENETC_PM0_RX_FIFO, 1);
 150
 151         /* set ENETC transaction flags to coherent, don't allocate.
 152          * BD writes merge with surrounding cache line data, frame data writes
 153          * overwrite cache line.
 154          */
 155         enetc_wr(enetc_hw, ENETC_SICAR0, ENETC_SICAR0_COHERENT);
 156
 157         /* Enabling Station Interface */
 158         enetc_wr(enetc_hw, ENETC_SIMR, ENETC_SIMR_EN);
 159
 160         *mac = (uint32_t)enetc_port_rd(enetc_hw, ENETC_PSIPMAR0(0));
 161         high_mac = (uint32_t)*mac;
 162         mac++;
 163         *mac = (uint16_t)enetc_port_rd(enetc_hw, ENETC_PSIPMAR1(0));
 164         low_mac = (uint16_t)*mac;
 165
 166         if ((high_mac | low_mac) == 0) {
 167                 char *first_byte;
 168
 169                 ENETC_PMD_NOTICE("MAC is not available for this SI, "
 170                                 "set random MAC\n");
 171                 mac = (uint32_t *)hw->mac.addr;
 172                 *mac = (uint32_t)rte_rand();
 173                 first_byte = (char *)mac;
 174                 *first_byte &= 0xfe;    /* clear multicast bit */
 175                 *first_byte |= 0x02;    /* set local assignment bit (IEEE802) */
 176
 177                 enetc_port_wr(enetc_hw, ENETC_PSIPMAR0(0), *mac);
 178                 mac++;
 179                 *mac = (uint16_t)rte_rand();
 180                 enetc_port_wr(enetc_hw, ENETC_PSIPMAR1(0), *mac);
 181                 print_ethaddr("New address: ",
 182                               (const struct rte_ether_addr *)hw->mac.addr);
 183         }
 184
 185         return 0;
 186 }
 187
 188 static int
 189 enetc_dev_infos_get(struct rte_eth_dev *dev __rte_unused,
 190                     struct rte_eth_dev_info *dev_info)
 191 {
 192         PMD_INIT_FUNC_TRACE();
 193         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 194                 .nb_max = MAX_BD_COUNT,
 195                 .nb_min = MIN_BD_COUNT,
 196                 .nb_align = BD_ALIGN,
 197         };
 198         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 199                 .nb_max = MAX_BD_COUNT,
 200                 .nb_min = MIN_BD_COUNT,
 201                 .nb_align = BD_ALIGN,
 202         };
 203         dev_info->max_rx_queues = MAX_RX_RINGS;
 204         dev_info->max_tx_queues = MAX_TX_RINGS;
 205         dev_info->max_rx_pktlen = ENETC_MAC_MAXFRM_SIZE;
 206         dev_info->rx_offload_capa =
 207                 (DEV_RX_OFFLOAD_IPV4_CKSUM |
 208                  DEV_RX_OFFLOAD_UDP_CKSUM |
 209                  DEV_RX_OFFLOAD_TCP_CKSUM |
 210                  DEV_RX_OFFLOAD_KEEP_CRC |
 211                  DEV_RX_OFFLOAD_JUMBO_FRAME);
 212
 213         return 0;
 214 }
 215
 216 static int
 217 enetc_alloc_txbdr(struct enetc_bdr *txr, uint16_t nb_desc)
 218 {
 219         int size;
 220
 221         size = nb_desc * sizeof(struct enetc_swbd);
 222         txr->q_swbd = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 223         if (txr->q_swbd == NULL)
 224                 return -ENOMEM;
 225
 226         size = nb_desc * sizeof(struct enetc_tx_bd);
 227         txr->bd_base = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 228         if (txr->bd_base == NULL) {
 229                 rte_free(txr->q_swbd);
 230                 txr->q_swbd = NULL;
 231                 return -ENOMEM;
 232         }
 233
 234         txr->bd_count = nb_desc;
 235         txr->next_to_clean = 0;
 236         txr->next_to_use = 0;
 237
 238         return 0;
 239 }
 240
 241 static void
 242 enetc_free_bdr(struct enetc_bdr *rxr)
 243 {
 244         rte_free(rxr->q_swbd);
 245         rte_free(rxr->bd_base);
 246         rxr->q_swbd = NULL;
 247         rxr->bd_base = NULL;
 248 }
 249
 250 static void
 251 enetc_setup_txbdr(struct enetc_hw *hw, struct enetc_bdr *tx_ring)
 252 {
 253         int idx = tx_ring->index;
 254         phys_addr_t bd_address;
 255
 256         bd_address = (phys_addr_t)
 257                      rte_mem_virt2iova((const void *)tx_ring->bd_base);
 258         enetc_txbdr_wr(hw, idx, ENETC_TBBAR0,
 259                        lower_32_bits((uint64_t)bd_address));
 260         enetc_txbdr_wr(hw, idx, ENETC_TBBAR1,
 261                        upper_32_bits((uint64_t)bd_address));
 262         enetc_txbdr_wr(hw, idx, ENETC_TBLENR,
 263                        ENETC_RTBLENR_LEN(tx_ring->bd_count));
 264
 265         enetc_txbdr_wr(hw, idx, ENETC_TBCIR, 0);
 266         enetc_txbdr_wr(hw, idx, ENETC_TBCISR, 0);
 267         tx_ring->tcir = (void *)((size_t)hw->reg +
 268                         ENETC_BDR(TX, idx, ENETC_TBCIR));
 269         tx_ring->tcisr = (void *)((size_t)hw->reg +
 270                          ENETC_BDR(TX, idx, ENETC_TBCISR));
 271 }
 272
 273 static int
 274 enetc_tx_queue_setup(struct rte_eth_dev *dev,
 275                      uint16_t queue_idx,
 276                      uint16_t nb_desc,
 277                      unsigned int socket_id __rte_unused,
 278                      const struct rte_eth_txconf *tx_conf)
 279 {
 280         int err = 0;
 281         struct enetc_bdr *tx_ring;
 282         struct rte_eth_dev_data *data = dev->data;
 283         struct enetc_eth_adapter *priv =
 284                         ENETC_DEV_PRIVATE(data->dev_private);
 285
 286         PMD_INIT_FUNC_TRACE();
 287         if (nb_desc > MAX_BD_COUNT)
 288                 return -1;
 289
 290         tx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
 291         if (tx_ring == NULL) {
 292                 ENETC_PMD_ERR("Failed to allocate TX ring memory");
 293                 err = -ENOMEM;
 294                 return -1;
 295         }
 296
 297         err = enetc_alloc_txbdr(tx_ring, nb_desc);
 298         if (err)
 299                 goto fail;
 300
 301         tx_ring->index = queue_idx;
 302         tx_ring->ndev = dev;
 303         enetc_setup_txbdr(&priv->hw.hw, tx_ring);
 304         data->tx_queues[queue_idx] = tx_ring;
 305
 306         if (!tx_conf->tx_deferred_start) {
 307                 /* enable ring */
 308                 enetc_txbdr_wr(&priv->hw.hw, tx_ring->index,
 309                                ENETC_TBMR, ENETC_TBMR_EN);
 310                 dev->data->tx_queue_state[tx_ring->index] =
 311                                RTE_ETH_QUEUE_STATE_STARTED;
 312         } else {
 313                 dev->data->tx_queue_state[tx_ring->index] =
 314                                RTE_ETH_QUEUE_STATE_STOPPED;
 315         }
 316
 317         return 0;
 318 fail:
 319         rte_free(tx_ring);
 320
 321         return err;
 322 }
 323
 324 static void
 325 enetc_tx_queue_release(void *txq)
 326 {
 327         if (txq == NULL)
 328                 return;
 329
 330         struct enetc_bdr *tx_ring = (struct enetc_bdr *)txq;
 331         struct enetc_eth_hw *eth_hw =
 332                 ENETC_DEV_PRIVATE_TO_HW(tx_ring->ndev->data->dev_private);
 333         struct enetc_hw *hw;
 334         struct enetc_swbd *tx_swbd;
 335         int i;
 336         uint32_t val;
 337
 338         /* Disable the ring */
 339         hw = &eth_hw->hw;
 340         val = enetc_txbdr_rd(hw, tx_ring->index, ENETC_TBMR);
 341         val &= (~ENETC_TBMR_EN);
 342         enetc_txbdr_wr(hw, tx_ring->index, ENETC_TBMR, val);
 343
 344         /* clean the ring*/
 345         i = tx_ring->next_to_clean;
 346         tx_swbd = &tx_ring->q_swbd[i];
 347         while (tx_swbd->buffer_addr != NULL) {
 348                 rte_pktmbuf_free(tx_swbd->buffer_addr);
 349                 tx_swbd->buffer_addr = NULL;
 350                 tx_swbd++;
 351                 i++;
 352                 if (unlikely(i == tx_ring->bd_count)) {
 353                         i = 0;
 354                         tx_swbd = &tx_ring->q_swbd[i];
 355                 }
 356         }
 357
 358         enetc_free_bdr(tx_ring);
 359         rte_free(tx_ring);
 360 }
 361
 362 static int
 363 enetc_alloc_rxbdr(struct enetc_bdr *rxr,
 364                   uint16_t nb_rx_desc)
 365 {
 366         int size;
 367
 368         size = nb_rx_desc * sizeof(struct enetc_swbd);
 369         rxr->q_swbd = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 370         if (rxr->q_swbd == NULL)
 371                 return -ENOMEM;
 372
 373         size = nb_rx_desc * sizeof(union enetc_rx_bd);
 374         rxr->bd_base = rte_malloc(NULL, size, ENETC_BD_RING_ALIGN);
 375         if (rxr->bd_base == NULL) {
 376                 rte_free(rxr->q_swbd);
 377                 rxr->q_swbd = NULL;
 378                 return -ENOMEM;
 379         }
 380
 381         rxr->bd_count = nb_rx_desc;
 382         rxr->next_to_clean = 0;
 383         rxr->next_to_use = 0;
 384         rxr->next_to_alloc = 0;
 385
 386         return 0;
 387 }
 388
 389 static void
 390 enetc_setup_rxbdr(struct enetc_hw *hw, struct enetc_bdr *rx_ring,
 391                   struct rte_mempool *mb_pool)
 392 {
 393         int idx = rx_ring->index;
 394         uint16_t buf_size;
 395         phys_addr_t bd_address;
 396
 397         bd_address = (phys_addr_t)
 398                      rte_mem_virt2iova((const void *)rx_ring->bd_base);
 399         enetc_rxbdr_wr(hw, idx, ENETC_RBBAR0,
 400                        lower_32_bits((uint64_t)bd_address));
 401         enetc_rxbdr_wr(hw, idx, ENETC_RBBAR1,
 402                        upper_32_bits((uint64_t)bd_address));
 403         enetc_rxbdr_wr(hw, idx, ENETC_RBLENR,
 404                        ENETC_RTBLENR_LEN(rx_ring->bd_count));
 405
 406         rx_ring->mb_pool = mb_pool;
 407         rx_ring->rcir = (void *)((size_t)hw->reg +
 408                         ENETC_BDR(RX, idx, ENETC_RBCIR));
 409         enetc_refill_rx_ring(rx_ring, (enetc_bd_unused(rx_ring)));
 410         buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rx_ring->mb_pool) -
 411                    RTE_PKTMBUF_HEADROOM);
 412         enetc_rxbdr_wr(hw, idx, ENETC_RBBSR, buf_size);
 413         enetc_rxbdr_wr(hw, idx, ENETC_RBPIR, 0);
 414 }
 415
 416 static int
 417 enetc_rx_queue_setup(struct rte_eth_dev *dev,
 418                      uint16_t rx_queue_id,
 419                      uint16_t nb_rx_desc,
 420                      unsigned int socket_id __rte_unused,
 421                      const struct rte_eth_rxconf *rx_conf,
 422                      struct rte_mempool *mb_pool)
 423 {
 424         int err = 0;
 425         struct enetc_bdr *rx_ring;
 426         struct rte_eth_dev_data *data =  dev->data;
 427         struct enetc_eth_adapter *adapter =
 428                         ENETC_DEV_PRIVATE(data->dev_private);
 429         uint64_t rx_offloads = data->dev_conf.rxmode.offloads;
 430
 431         PMD_INIT_FUNC_TRACE();
 432         if (nb_rx_desc > MAX_BD_COUNT)
 433                 return -1;
 434
 435         rx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
 436         if (rx_ring == NULL) {
 437                 ENETC_PMD_ERR("Failed to allocate RX ring memory");
 438                 err = -ENOMEM;
 439                 return err;
 440         }
 441
 442         err = enetc_alloc_rxbdr(rx_ring, nb_rx_desc);
 443         if (err)
 444                 goto fail;
 445
 446         rx_ring->index = rx_queue_id;
 447         rx_ring->ndev = dev;
 448         enetc_setup_rxbdr(&adapter->hw.hw, rx_ring, mb_pool);
 449         data->rx_queues[rx_queue_id] = rx_ring;
 450
 451         if (!rx_conf->rx_deferred_start) {
 452                 /* enable ring */
 453                 enetc_rxbdr_wr(&adapter->hw.hw, rx_ring->index, ENETC_RBMR,
 454                                ENETC_RBMR_EN);
 455                 dev->data->rx_queue_state[rx_ring->index] =
 456                                RTE_ETH_QUEUE_STATE_STARTED;
 457         } else {
 458                 dev->data->rx_queue_state[rx_ring->index] =
 459                                RTE_ETH_QUEUE_STATE_STOPPED;
 460         }
 461
 462         rx_ring->crc_len = (uint8_t)((rx_offloads & DEV_RX_OFFLOAD_KEEP_CRC) ?
 463                                      RTE_ETHER_CRC_LEN : 0);
 464
 465         return 0;
 466 fail:
 467         rte_free(rx_ring);
 468
 469         return err;
 470 }
 471
 472 static void
 473 enetc_rx_queue_release(void *rxq)
 474 {
 475         if (rxq == NULL)
 476                 return;
 477
 478         struct enetc_bdr *rx_ring = (struct enetc_bdr *)rxq;
 479         struct enetc_eth_hw *eth_hw =
 480                 ENETC_DEV_PRIVATE_TO_HW(rx_ring->ndev->data->dev_private);
 481         struct enetc_swbd *q_swbd;
 482         struct enetc_hw *hw;
 483         uint32_t val;
 484         int i;
 485
 486         /* Disable the ring */
 487         hw = &eth_hw->hw;
 488         val = enetc_rxbdr_rd(hw, rx_ring->index, ENETC_RBMR);
 489         val &= (~ENETC_RBMR_EN);
 490         enetc_rxbdr_wr(hw, rx_ring->index, ENETC_RBMR, val);
 491
 492         /* Clean the ring */
 493         i = rx_ring->next_to_clean;
 494         q_swbd = &rx_ring->q_swbd[i];
 495         while (i != rx_ring->next_to_use) {
 496                 rte_pktmbuf_free(q_swbd->buffer_addr);
 497                 q_swbd->buffer_addr = NULL;
 498                 q_swbd++;
 499                 i++;
 500                 if (unlikely(i == rx_ring->bd_count)) {
 501                         i = 0;
 502                         q_swbd = &rx_ring->q_swbd[i];
 503                 }
 504         }
 505
 506         enetc_free_bdr(rx_ring);
 507         rte_free(rx_ring);
 508 }
 509
 510 static
 511 int enetc_stats_get(struct rte_eth_dev *dev,
 512                     struct rte_eth_stats *stats)
 513 {
 514         struct enetc_eth_hw *hw =
 515                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 516         struct enetc_hw *enetc_hw = &hw->hw;
 517
 518         /* Total received packets, bad + good, if we want to get counters of
 519          * only good received packets then use ENETC_PM0_RFRM,
 520          * ENETC_PM0_TFRM registers.
 521          */
 522         stats->ipackets = enetc_port_rd(enetc_hw, ENETC_PM0_RPKT);
 523         stats->opackets = enetc_port_rd(enetc_hw, ENETC_PM0_TPKT);
 524         stats->ibytes =  enetc_port_rd(enetc_hw, ENETC_PM0_REOCT);
 525         stats->obytes = enetc_port_rd(enetc_hw, ENETC_PM0_TEOCT);
 526         /* Dropped + Truncated packets, use ENETC_PM0_RDRNTP for without
 527          * truncated packets
 528          */
 529         stats->imissed = enetc_port_rd(enetc_hw, ENETC_PM0_RDRP);
 530         stats->ierrors = enetc_port_rd(enetc_hw, ENETC_PM0_RERR);
 531         stats->oerrors = enetc_port_rd(enetc_hw, ENETC_PM0_TERR);
 532
 533         return 0;
 534 }
 535
 536 static int
 537 enetc_stats_reset(struct rte_eth_dev *dev)
 538 {
 539         struct enetc_eth_hw *hw =
 540                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 541         struct enetc_hw *enetc_hw = &hw->hw;
 542
 543         enetc_port_wr(enetc_hw, ENETC_PM0_STAT_CONFIG, ENETC_CLEAR_STATS);
 544
 545         return 0;
 546 }
 547
 548 static void
 549 enetc_dev_close(struct rte_eth_dev *dev)
 550 {
 551         uint16_t i;
 552
 553         PMD_INIT_FUNC_TRACE();
 554         enetc_dev_stop(dev);
 555
 556         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 557                 enetc_rx_queue_release(dev->data->rx_queues[i]);
 558                 dev->data->rx_queues[i] = NULL;
 559         }
 560         dev->data->nb_rx_queues = 0;
 561
 562         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 563                 enetc_tx_queue_release(dev->data->tx_queues[i]);
 564                 dev->data->tx_queues[i] = NULL;
 565         }
 566         dev->data->nb_tx_queues = 0;
 567 }
 568
 569 static int
 570 enetc_promiscuous_enable(struct rte_eth_dev *dev)
 571 {
 572         struct enetc_eth_hw *hw =
 573                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 574         struct enetc_hw *enetc_hw = &hw->hw;
 575         uint32_t psipmr = 0;
 576
 577         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR);
 578
 579         /* Setting to enable promiscuous mode*/
 580         psipmr |= ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0);
 581
 582         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 583
 584         return 0;
 585 }
 586
 587 static int
 588 enetc_promiscuous_disable(struct rte_eth_dev *dev)
 589 {
 590         struct enetc_eth_hw *hw =
 591                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 592         struct enetc_hw *enetc_hw = &hw->hw;
 593         uint32_t psipmr = 0;
 594
 595         /* Setting to disable promiscuous mode for SI0*/
 596         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR);
 597         psipmr &= (~ENETC_PSIPMR_SET_UP(0));
 598
 599         if (dev->data->all_multicast == 0)
 600                 psipmr &= (~ENETC_PSIPMR_SET_MP(0));
 601
 602         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 603
 604         return 0;
 605 }
 606
 607 static int
 608 enetc_allmulticast_enable(struct rte_eth_dev *dev)
 609 {
 610         struct enetc_eth_hw *hw =
 611                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 612         struct enetc_hw *enetc_hw = &hw->hw;
 613         uint32_t psipmr = 0;
 614
 615         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR);
 616
 617         /* Setting to enable allmulticast mode for SI0*/
 618         psipmr |= ENETC_PSIPMR_SET_MP(0);
 619
 620         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 621
 622         return 0;
 623 }
 624
 625 static int
 626 enetc_allmulticast_disable(struct rte_eth_dev *dev)
 627 {
 628         struct enetc_eth_hw *hw =
 629                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 630         struct enetc_hw *enetc_hw = &hw->hw;
 631         uint32_t psipmr = 0;
 632
 633         if (dev->data->promiscuous == 1)
 634                 return 0; /* must remain in all_multicast mode */
 635
 636         /* Setting to disable all multicast mode for SI0*/
 637         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR) &
 638                                ~(ENETC_PSIPMR_SET_MP(0));
 639
 640         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 641
 642         return 0;
 643 }
 644
 645 static int
 646 enetc_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 647 {
 648         struct enetc_eth_hw *hw =
 649                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 650         struct enetc_hw *enetc_hw = &hw->hw;
 651         uint32_t frame_size = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
 652
 653         /* check that mtu is within the allowed range */
 654         if (mtu < ENETC_MAC_MINFRM_SIZE || frame_size > ENETC_MAC_MAXFRM_SIZE)
 655                 return -EINVAL;
 656
 657         /*
 658          * Refuse mtu that requires the support of scattered packets
 659          * when this feature has not been enabled before.
 660          */
 661         if (dev->data->min_rx_buf_size &&
 662                 !dev->data->scattered_rx && frame_size >
 663                 dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM) {
 664                 ENETC_PMD_ERR("SG not enabled, will not fit in one buffer");
 665                 return -EINVAL;
 666         }
 667
 668         if (frame_size > RTE_ETHER_MAX_LEN)
 669                 dev->data->dev_conf.rxmode.offloads &=
 670                                                 DEV_RX_OFFLOAD_JUMBO_FRAME;
 671         else
 672                 dev->data->dev_conf.rxmode.offloads &=
 673                                                 ~DEV_RX_OFFLOAD_JUMBO_FRAME;
 674
 675         enetc_port_wr(enetc_hw, ENETC_PTCMSDUR(0), ENETC_MAC_MAXFRM_SIZE);
 676         enetc_port_wr(enetc_hw, ENETC_PTXMBAR, 2 * ENETC_MAC_MAXFRM_SIZE);
 677
 678         dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
 679
 680         /*setting the MTU*/
 681         enetc_port_wr(enetc_hw, ENETC_PM0_MAXFRM, ENETC_SET_MAXFRM(frame_size) |
 682                       ENETC_SET_TX_MTU(ENETC_MAC_MAXFRM_SIZE));
 683
 684         return 0;
 685 }
 686
 687 static int
 688 enetc_dev_configure(struct rte_eth_dev *dev)
 689 {
 690         struct enetc_eth_hw *hw =
 691                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 692         struct enetc_hw *enetc_hw = &hw->hw;
 693         struct rte_eth_conf *eth_conf = &dev->data->dev_conf;
 694         uint64_t rx_offloads = eth_conf->rxmode.offloads;
 695         uint32_t checksum = L3_CKSUM | L4_CKSUM;
 696
 697         PMD_INIT_FUNC_TRACE();
 698
 699         if (rx_offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
 700                 uint32_t max_len;
 701
 702                 max_len = dev->data->dev_conf.rxmode.max_rx_pkt_len;
 703
 704                 enetc_port_wr(enetc_hw, ENETC_PM0_MAXFRM,
 705                               ENETC_SET_MAXFRM(max_len));
 706                 enetc_port_wr(enetc_hw, ENETC_PTCMSDUR(0),
 707                               ENETC_MAC_MAXFRM_SIZE);
 708                 enetc_port_wr(enetc_hw, ENETC_PTXMBAR,
 709                               2 * ENETC_MAC_MAXFRM_SIZE);
 710                 dev->data->mtu = RTE_ETHER_MAX_LEN - RTE_ETHER_HDR_LEN -
 711                         RTE_ETHER_CRC_LEN;
 712         }
 713
 714         if (rx_offloads & DEV_RX_OFFLOAD_KEEP_CRC) {
 715                 int config;
 716
 717                 config = enetc_port_rd(enetc_hw, ENETC_PM0_CMD_CFG);
 718                 config |= ENETC_PM0_CRC;
 719                 enetc_port_wr(enetc_hw, ENETC_PM0_CMD_CFG, config);
 720         }
 721
 722         if (rx_offloads & DEV_RX_OFFLOAD_IPV4_CKSUM)
 723                 checksum &= ~L3_CKSUM;
 724
 725         if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM | DEV_RX_OFFLOAD_TCP_CKSUM))
 726                 checksum &= ~L4_CKSUM;
 727
 728         enetc_port_wr(enetc_hw, ENETC_PAR_PORT_CFG, checksum);
 729
 730
 731         return 0;
 732 }
 733
 734 static int
 735 enetc_rx_queue_start(struct rte_eth_dev *dev, uint16_t qidx)
 736 {
 737         struct enetc_eth_adapter *priv =
 738                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 739         struct enetc_bdr *rx_ring;
 740         uint32_t rx_data;
 741
 742         rx_ring = dev->data->rx_queues[qidx];
 743         if (dev->data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED) {
 744                 rx_data = enetc_rxbdr_rd(&priv->hw.hw, rx_ring->index,
 745                                          ENETC_RBMR);
 746                 rx_data = rx_data | ENETC_RBMR_EN;
 747                 enetc_rxbdr_wr(&priv->hw.hw, rx_ring->index, ENETC_RBMR,
 748                                rx_data);
 749                 dev->data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
 750         }
 751
 752         return 0;
 753 }
 754
 755 static int
 756 enetc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t qidx)
 757 {
 758         struct enetc_eth_adapter *priv =
 759                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 760         struct enetc_bdr *rx_ring;
 761         uint32_t rx_data;
 762
 763         rx_ring = dev->data->rx_queues[qidx];
 764         if (dev->data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED) {
 765                 rx_data = enetc_rxbdr_rd(&priv->hw.hw, rx_ring->index,
 766                                          ENETC_RBMR);
 767                 rx_data = rx_data & (~ENETC_RBMR_EN);
 768                 enetc_rxbdr_wr(&priv->hw.hw, rx_ring->index, ENETC_RBMR,
 769                                rx_data);
 770                 dev->data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
 771         }
 772
 773         return 0;
 774 }
 775
 776 static int
 777 enetc_tx_queue_start(struct rte_eth_dev *dev, uint16_t qidx)
 778 {
 779         struct enetc_eth_adapter *priv =
 780                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 781         struct enetc_bdr *tx_ring;
 782         uint32_t tx_data;
 783
 784         tx_ring = dev->data->tx_queues[qidx];
 785         if (dev->data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED) {
 786                 tx_data = enetc_txbdr_rd(&priv->hw.hw, tx_ring->index,
 787                                          ENETC_TBMR);
 788                 tx_data = tx_data | ENETC_TBMR_EN;
 789                 enetc_txbdr_wr(&priv->hw.hw, tx_ring->index, ENETC_TBMR,
 790                                tx_data);
 791                 dev->data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
 792         }
 793
 794         return 0;
 795 }
 796
 797 static int
 798 enetc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t qidx)
 799 {
 800         struct enetc_eth_adapter *priv =
 801                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 802         struct enetc_bdr *tx_ring;
 803         uint32_t tx_data;
 804
 805         tx_ring = dev->data->tx_queues[qidx];
 806         if (dev->data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED) {
 807                 tx_data = enetc_txbdr_rd(&priv->hw.hw, tx_ring->index,
 808                                          ENETC_TBMR);
 809                 tx_data = tx_data & (~ENETC_TBMR_EN);
 810                 enetc_txbdr_wr(&priv->hw.hw, tx_ring->index, ENETC_TBMR,
 811                                tx_data);
 812                 dev->data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
 813         }
 814
 815         return 0;
 816 }
 817
 818 /*
 819  * The set of PCI devices this driver supports
 820  */
 821 static const struct rte_pci_id pci_id_enetc_map[] = {
 822         { RTE_PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID) },
 823         { RTE_PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_VF) },
 824         { .vendor_id = 0, /* sentinel */ },
 825 };
 826
 827 /* Features supported by this driver */
 828 static const struct eth_dev_ops enetc_ops = {
 829         .dev_configure        = enetc_dev_configure,
 830         .dev_start            = enetc_dev_start,
 831         .dev_stop             = enetc_dev_stop,
 832         .dev_close            = enetc_dev_close,
 833         .link_update          = enetc_link_update,
 834         .stats_get            = enetc_stats_get,
 835         .stats_reset          = enetc_stats_reset,
 836         .promiscuous_enable   = enetc_promiscuous_enable,
 837         .promiscuous_disable  = enetc_promiscuous_disable,
 838         .allmulticast_enable  = enetc_allmulticast_enable,
 839         .allmulticast_disable = enetc_allmulticast_disable,
 840         .dev_infos_get        = enetc_dev_infos_get,
 841         .mtu_set              = enetc_mtu_set,
 842         .rx_queue_setup       = enetc_rx_queue_setup,
 843         .rx_queue_start       = enetc_rx_queue_start,
 844         .rx_queue_stop        = enetc_rx_queue_stop,
 845         .rx_queue_release     = enetc_rx_queue_release,
 846         .tx_queue_setup       = enetc_tx_queue_setup,
 847         .tx_queue_start       = enetc_tx_queue_start,
 848         .tx_queue_stop        = enetc_tx_queue_stop,
 849         .tx_queue_release     = enetc_tx_queue_release,
 850         .dev_supported_ptypes_get = enetc_supported_ptypes_get,
 851 };
 852
 853 /**
 854  * Initialisation of the enetc device
 855  *
 856  * @param eth_dev
 857  *   - Pointer to the structure rte_eth_dev
 858  *
 859  * @return
 860  *   - On success, zero.
 861  *   - On failure, negative value.
 862  */
 863 static int
 864 enetc_dev_init(struct rte_eth_dev *eth_dev)
 865 {
 866         int error = 0;
 867         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 868         struct enetc_eth_hw *hw =
 869                 ENETC_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
 870
 871         PMD_INIT_FUNC_TRACE();
 872         eth_dev->dev_ops = &enetc_ops;
 873         eth_dev->rx_pkt_burst = &enetc_recv_pkts;
 874         eth_dev->tx_pkt_burst = &enetc_xmit_pkts;
 875
 876         /* Retrieving and storing the HW base address of device */
 877         hw->hw.reg = (void *)pci_dev->mem_resource[0].addr;
 878         hw->device_id = pci_dev->id.device_id;
 879
 880         error = enetc_hardware_init(hw);
 881         if (error != 0) {
 882                 ENETC_PMD_ERR("Hardware initialization failed");
 883                 return -1;
 884         }
 885
 886         /* Allocate memory for storing MAC addresses */
 887         eth_dev->data->mac_addrs = rte_zmalloc("enetc_eth",
 888                                         RTE_ETHER_ADDR_LEN, 0);
 889         if (!eth_dev->data->mac_addrs) {
 890                 ENETC_PMD_ERR("Failed to allocate %d bytes needed to "
 891                               "store MAC addresses",
 892                               RTE_ETHER_ADDR_LEN * 1);
 893                 error = -ENOMEM;
 894                 return -1;
 895         }
 896
 897         /* Copy the permanent MAC address */
 898         rte_ether_addr_copy((struct rte_ether_addr *)hw->mac.addr,
 899                         &eth_dev->data->mac_addrs[0]);
 900
 901         /* Set MTU */
 902         enetc_port_wr(&hw->hw, ENETC_PM0_MAXFRM,
 903                       ENETC_SET_MAXFRM(RTE_ETHER_MAX_LEN));
 904         eth_dev->data->mtu = RTE_ETHER_MAX_LEN - RTE_ETHER_HDR_LEN -
 905                 RTE_ETHER_CRC_LEN;
 906
 907         if (rte_eal_iova_mode() == RTE_IOVA_PA)
 908                 dpaax_iova_table_populate();
 909
 910         ENETC_PMD_DEBUG("port_id %d vendorID=0x%x deviceID=0x%x",
 911                         eth_dev->data->port_id, pci_dev->id.vendor_id,
 912                         pci_dev->id.device_id);
 913         return 0;
 914 }
 915
 916 static int
 917 enetc_dev_uninit(struct rte_eth_dev *eth_dev __rte_unused)
 918 {
 919         PMD_INIT_FUNC_TRACE();
 920
 921         if (rte_eal_iova_mode() == RTE_IOVA_PA)
 922                 dpaax_iova_table_depopulate();
 923
 924         return 0;
 925 }
 926
 927 static int
 928 enetc_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 929                            struct rte_pci_device *pci_dev)
 930 {
 931         return rte_eth_dev_pci_generic_probe(pci_dev,
 932                                              sizeof(struct enetc_eth_adapter),
 933                                              enetc_dev_init);
 934 }
 935
 936 static int
 937 enetc_pci_remove(struct rte_pci_device *pci_dev)
 938 {
 939         return rte_eth_dev_pci_generic_remove(pci_dev, enetc_dev_uninit);
 940 }
 941
 942 static struct rte_pci_driver rte_enetc_pmd = {
 943         .id_table = pci_id_enetc_map,
 944         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 945         .probe = enetc_pci_probe,
 946         .remove = enetc_pci_remove,
 947 };
 948
 949 RTE_PMD_REGISTER_PCI(net_enetc, rte_enetc_pmd);
 950 RTE_PMD_REGISTER_PCI_TABLE(net_enetc, pci_id_enetc_map);
 951 RTE_PMD_REGISTER_KMOD_DEP(net_enetc, "* vfio-pci");
 952 RTE_LOG_REGISTER(enetc_logtype_pmd, pmd.net.enetc, NOTICE);