drivers/net/enetc/enetc_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2018-2019 NXP
   3  */
   4
   5 #include <stdbool.h>
   6 #include <rte_ethdev_pci.h>
   7
   8 #include "enetc_logs.h"
   9 #include "enetc.h"
  10
  11 int enetc_logtype_pmd;
  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 int
 127 enetc_hardware_init(struct enetc_eth_hw *hw)
 128 {
 129         struct enetc_hw *enetc_hw = &hw->hw;
 130         uint32_t *mac = (uint32_t *)hw->mac.addr;
 131
 132         PMD_INIT_FUNC_TRACE();
 133         /* Calculating and storing the base HW addresses */
 134         hw->hw.port = (void *)((size_t)hw->hw.reg + ENETC_PORT_BASE);
 135         hw->hw.global = (void *)((size_t)hw->hw.reg + ENETC_GLOBAL_BASE);
 136
 137         /* Enabling Station Interface */
 138         enetc_wr(enetc_hw, ENETC_SIMR, ENETC_SIMR_EN);
 139
 140         *mac = (uint32_t)enetc_port_rd(enetc_hw, ENETC_PSIPMAR0(0));
 141         mac++;
 142         *mac = (uint16_t)enetc_port_rd(enetc_hw, ENETC_PSIPMAR1(0));
 143
 144         return 0;
 145 }
 146
 147 static int
 148 enetc_dev_infos_get(struct rte_eth_dev *dev __rte_unused,
 149                     struct rte_eth_dev_info *dev_info)
 150 {
 151         PMD_INIT_FUNC_TRACE();
 152         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 153                 .nb_max = MAX_BD_COUNT,
 154                 .nb_min = MIN_BD_COUNT,
 155                 .nb_align = BD_ALIGN,
 156         };
 157         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 158                 .nb_max = MAX_BD_COUNT,
 159                 .nb_min = MIN_BD_COUNT,
 160                 .nb_align = BD_ALIGN,
 161         };
 162         dev_info->max_rx_queues = MAX_RX_RINGS;
 163         dev_info->max_tx_queues = MAX_TX_RINGS;
 164         dev_info->max_rx_pktlen = ENETC_MAC_MAXFRM_SIZE;
 165         dev_info->rx_offload_capa =
 166                 (DEV_RX_OFFLOAD_IPV4_CKSUM |
 167                  DEV_RX_OFFLOAD_UDP_CKSUM |
 168                  DEV_RX_OFFLOAD_TCP_CKSUM |
 169                  DEV_RX_OFFLOAD_KEEP_CRC |
 170                  DEV_RX_OFFLOAD_JUMBO_FRAME);
 171
 172         return 0;
 173 }
 174
 175 static int
 176 enetc_alloc_txbdr(struct enetc_bdr *txr, uint16_t nb_desc)
 177 {
 178         int size;
 179
 180         size = nb_desc * sizeof(struct enetc_swbd);
 181         txr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
 182         if (txr->q_swbd == NULL)
 183                 return -ENOMEM;
 184
 185         size = nb_desc * sizeof(struct enetc_tx_bd);
 186         txr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
 187         if (txr->bd_base == NULL) {
 188                 rte_free(txr->q_swbd);
 189                 txr->q_swbd = NULL;
 190                 return -ENOMEM;
 191         }
 192
 193         txr->bd_count = nb_desc;
 194         txr->next_to_clean = 0;
 195         txr->next_to_use = 0;
 196
 197         return 0;
 198 }
 199
 200 static void
 201 enetc_free_bdr(struct enetc_bdr *rxr)
 202 {
 203         rte_free(rxr->q_swbd);
 204         rte_free(rxr->bd_base);
 205         rxr->q_swbd = NULL;
 206         rxr->bd_base = NULL;
 207 }
 208
 209 static void
 210 enetc_setup_txbdr(struct enetc_hw *hw, struct enetc_bdr *tx_ring)
 211 {
 212         int idx = tx_ring->index;
 213         phys_addr_t bd_address;
 214
 215         bd_address = (phys_addr_t)
 216                      rte_mem_virt2iova((const void *)tx_ring->bd_base);
 217         enetc_txbdr_wr(hw, idx, ENETC_TBBAR0,
 218                        lower_32_bits((uint64_t)bd_address));
 219         enetc_txbdr_wr(hw, idx, ENETC_TBBAR1,
 220                        upper_32_bits((uint64_t)bd_address));
 221         enetc_txbdr_wr(hw, idx, ENETC_TBLENR,
 222                        ENETC_RTBLENR_LEN(tx_ring->bd_count));
 223
 224         enetc_txbdr_wr(hw, idx, ENETC_TBCIR, 0);
 225         enetc_txbdr_wr(hw, idx, ENETC_TBCISR, 0);
 226         tx_ring->tcir = (void *)((size_t)hw->reg +
 227                         ENETC_BDR(TX, idx, ENETC_TBCIR));
 228         tx_ring->tcisr = (void *)((size_t)hw->reg +
 229                          ENETC_BDR(TX, idx, ENETC_TBCISR));
 230 }
 231
 232 static int
 233 enetc_tx_queue_setup(struct rte_eth_dev *dev,
 234                      uint16_t queue_idx,
 235                      uint16_t nb_desc,
 236                      unsigned int socket_id __rte_unused,
 237                      const struct rte_eth_txconf *tx_conf)
 238 {
 239         int err = 0;
 240         struct enetc_bdr *tx_ring;
 241         struct rte_eth_dev_data *data = dev->data;
 242         struct enetc_eth_adapter *priv =
 243                         ENETC_DEV_PRIVATE(data->dev_private);
 244
 245         PMD_INIT_FUNC_TRACE();
 246         if (nb_desc > MAX_BD_COUNT)
 247                 return -1;
 248
 249         tx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
 250         if (tx_ring == NULL) {
 251                 ENETC_PMD_ERR("Failed to allocate TX ring memory");
 252                 err = -ENOMEM;
 253                 return -1;
 254         }
 255
 256         err = enetc_alloc_txbdr(tx_ring, nb_desc);
 257         if (err)
 258                 goto fail;
 259
 260         tx_ring->index = queue_idx;
 261         tx_ring->ndev = dev;
 262         enetc_setup_txbdr(&priv->hw.hw, tx_ring);
 263         data->tx_queues[queue_idx] = tx_ring;
 264
 265         if (!tx_conf->tx_deferred_start) {
 266                 /* enable ring */
 267                 enetc_txbdr_wr(&priv->hw.hw, tx_ring->index,
 268                                ENETC_TBMR, ENETC_TBMR_EN);
 269                 dev->data->tx_queue_state[tx_ring->index] =
 270                                RTE_ETH_QUEUE_STATE_STARTED;
 271         } else {
 272                 dev->data->tx_queue_state[tx_ring->index] =
 273                                RTE_ETH_QUEUE_STATE_STOPPED;
 274         }
 275
 276         return 0;
 277 fail:
 278         rte_free(tx_ring);
 279
 280         return err;
 281 }
 282
 283 static void
 284 enetc_tx_queue_release(void *txq)
 285 {
 286         if (txq == NULL)
 287                 return;
 288
 289         struct enetc_bdr *tx_ring = (struct enetc_bdr *)txq;
 290         struct enetc_eth_hw *eth_hw =
 291                 ENETC_DEV_PRIVATE_TO_HW(tx_ring->ndev->data->dev_private);
 292         struct enetc_hw *hw;
 293         struct enetc_swbd *tx_swbd;
 294         int i;
 295         uint32_t val;
 296
 297         /* Disable the ring */
 298         hw = &eth_hw->hw;
 299         val = enetc_txbdr_rd(hw, tx_ring->index, ENETC_TBMR);
 300         val &= (~ENETC_TBMR_EN);
 301         enetc_txbdr_wr(hw, tx_ring->index, ENETC_TBMR, val);
 302
 303         /* clean the ring*/
 304         i = tx_ring->next_to_clean;
 305         tx_swbd = &tx_ring->q_swbd[i];
 306         while (tx_swbd->buffer_addr != NULL) {
 307                 rte_pktmbuf_free(tx_swbd->buffer_addr);
 308                 tx_swbd->buffer_addr = NULL;
 309                 tx_swbd++;
 310                 i++;
 311                 if (unlikely(i == tx_ring->bd_count)) {
 312                         i = 0;
 313                         tx_swbd = &tx_ring->q_swbd[i];
 314                 }
 315         }
 316
 317         enetc_free_bdr(tx_ring);
 318         rte_free(tx_ring);
 319 }
 320
 321 static int
 322 enetc_alloc_rxbdr(struct enetc_bdr *rxr,
 323                   uint16_t nb_rx_desc)
 324 {
 325         int size;
 326
 327         size = nb_rx_desc * sizeof(struct enetc_swbd);
 328         rxr->q_swbd = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
 329         if (rxr->q_swbd == NULL)
 330                 return -ENOMEM;
 331
 332         size = nb_rx_desc * sizeof(union enetc_rx_bd);
 333         rxr->bd_base = rte_malloc(NULL, size, RTE_CACHE_LINE_SIZE);
 334         if (rxr->bd_base == NULL) {
 335                 rte_free(rxr->q_swbd);
 336                 rxr->q_swbd = NULL;
 337                 return -ENOMEM;
 338         }
 339
 340         rxr->bd_count = nb_rx_desc;
 341         rxr->next_to_clean = 0;
 342         rxr->next_to_use = 0;
 343         rxr->next_to_alloc = 0;
 344
 345         return 0;
 346 }
 347
 348 static void
 349 enetc_setup_rxbdr(struct enetc_hw *hw, struct enetc_bdr *rx_ring,
 350                   struct rte_mempool *mb_pool)
 351 {
 352         int idx = rx_ring->index;
 353         uint16_t buf_size;
 354         phys_addr_t bd_address;
 355
 356         bd_address = (phys_addr_t)
 357                      rte_mem_virt2iova((const void *)rx_ring->bd_base);
 358         enetc_rxbdr_wr(hw, idx, ENETC_RBBAR0,
 359                        lower_32_bits((uint64_t)bd_address));
 360         enetc_rxbdr_wr(hw, idx, ENETC_RBBAR1,
 361                        upper_32_bits((uint64_t)bd_address));
 362         enetc_rxbdr_wr(hw, idx, ENETC_RBLENR,
 363                        ENETC_RTBLENR_LEN(rx_ring->bd_count));
 364
 365         rx_ring->mb_pool = mb_pool;
 366         rx_ring->rcir = (void *)((size_t)hw->reg +
 367                         ENETC_BDR(RX, idx, ENETC_RBCIR));
 368         enetc_refill_rx_ring(rx_ring, (enetc_bd_unused(rx_ring)));
 369         buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rx_ring->mb_pool) -
 370                    RTE_PKTMBUF_HEADROOM);
 371         enetc_rxbdr_wr(hw, idx, ENETC_RBBSR, buf_size);
 372         enetc_rxbdr_wr(hw, idx, ENETC_RBPIR, 0);
 373 }
 374
 375 static int
 376 enetc_rx_queue_setup(struct rte_eth_dev *dev,
 377                      uint16_t rx_queue_id,
 378                      uint16_t nb_rx_desc,
 379                      unsigned int socket_id __rte_unused,
 380                      const struct rte_eth_rxconf *rx_conf,
 381                      struct rte_mempool *mb_pool)
 382 {
 383         int err = 0;
 384         struct enetc_bdr *rx_ring;
 385         struct rte_eth_dev_data *data =  dev->data;
 386         struct enetc_eth_adapter *adapter =
 387                         ENETC_DEV_PRIVATE(data->dev_private);
 388         uint64_t rx_offloads = data->dev_conf.rxmode.offloads;
 389
 390         PMD_INIT_FUNC_TRACE();
 391         if (nb_rx_desc > MAX_BD_COUNT)
 392                 return -1;
 393
 394         rx_ring = rte_zmalloc(NULL, sizeof(struct enetc_bdr), 0);
 395         if (rx_ring == NULL) {
 396                 ENETC_PMD_ERR("Failed to allocate RX ring memory");
 397                 err = -ENOMEM;
 398                 return err;
 399         }
 400
 401         err = enetc_alloc_rxbdr(rx_ring, nb_rx_desc);
 402         if (err)
 403                 goto fail;
 404
 405         rx_ring->index = rx_queue_id;
 406         rx_ring->ndev = dev;
 407         enetc_setup_rxbdr(&adapter->hw.hw, rx_ring, mb_pool);
 408         data->rx_queues[rx_queue_id] = rx_ring;
 409
 410         if (!rx_conf->rx_deferred_start) {
 411                 /* enable ring */
 412                 enetc_rxbdr_wr(&adapter->hw.hw, rx_ring->index, ENETC_RBMR,
 413                                ENETC_RBMR_EN);
 414                 dev->data->rx_queue_state[rx_ring->index] =
 415                                RTE_ETH_QUEUE_STATE_STARTED;
 416         } else {
 417                 dev->data->rx_queue_state[rx_ring->index] =
 418                                RTE_ETH_QUEUE_STATE_STOPPED;
 419         }
 420
 421         rx_ring->crc_len = (uint8_t)((rx_offloads & DEV_RX_OFFLOAD_KEEP_CRC) ?
 422                                      RTE_ETHER_CRC_LEN : 0);
 423
 424         return 0;
 425 fail:
 426         rte_free(rx_ring);
 427
 428         return err;
 429 }
 430
 431 static void
 432 enetc_rx_queue_release(void *rxq)
 433 {
 434         if (rxq == NULL)
 435                 return;
 436
 437         struct enetc_bdr *rx_ring = (struct enetc_bdr *)rxq;
 438         struct enetc_eth_hw *eth_hw =
 439                 ENETC_DEV_PRIVATE_TO_HW(rx_ring->ndev->data->dev_private);
 440         struct enetc_swbd *q_swbd;
 441         struct enetc_hw *hw;
 442         uint32_t val;
 443         int i;
 444
 445         /* Disable the ring */
 446         hw = &eth_hw->hw;
 447         val = enetc_rxbdr_rd(hw, rx_ring->index, ENETC_RBMR);
 448         val &= (~ENETC_RBMR_EN);
 449         enetc_rxbdr_wr(hw, rx_ring->index, ENETC_RBMR, val);
 450
 451         /* Clean the ring */
 452         i = rx_ring->next_to_clean;
 453         q_swbd = &rx_ring->q_swbd[i];
 454         while (i != rx_ring->next_to_use) {
 455                 rte_pktmbuf_free(q_swbd->buffer_addr);
 456                 q_swbd->buffer_addr = NULL;
 457                 q_swbd++;
 458                 i++;
 459                 if (unlikely(i == rx_ring->bd_count)) {
 460                         i = 0;
 461                         q_swbd = &rx_ring->q_swbd[i];
 462                 }
 463         }
 464
 465         enetc_free_bdr(rx_ring);
 466         rte_free(rx_ring);
 467 }
 468
 469 static
 470 int enetc_stats_get(struct rte_eth_dev *dev,
 471                     struct rte_eth_stats *stats)
 472 {
 473         struct enetc_eth_hw *hw =
 474                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 475         struct enetc_hw *enetc_hw = &hw->hw;
 476
 477         /* Total received packets, bad + good, if we want to get counters of
 478          * only good received packets then use ENETC_PM0_RFRM,
 479          * ENETC_PM0_TFRM registers.
 480          */
 481         stats->ipackets = enetc_port_rd(enetc_hw, ENETC_PM0_RPKT);
 482         stats->opackets = enetc_port_rd(enetc_hw, ENETC_PM0_TPKT);
 483         stats->ibytes =  enetc_port_rd(enetc_hw, ENETC_PM0_REOCT);
 484         stats->obytes = enetc_port_rd(enetc_hw, ENETC_PM0_TEOCT);
 485         /* Dropped + Truncated packets, use ENETC_PM0_RDRNTP for without
 486          * truncated packets
 487          */
 488         stats->imissed = enetc_port_rd(enetc_hw, ENETC_PM0_RDRP);
 489         stats->ierrors = enetc_port_rd(enetc_hw, ENETC_PM0_RERR);
 490         stats->oerrors = enetc_port_rd(enetc_hw, ENETC_PM0_TERR);
 491
 492         return 0;
 493 }
 494
 495 static void
 496 enetc_stats_reset(struct rte_eth_dev *dev)
 497 {
 498         struct enetc_eth_hw *hw =
 499                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 500         struct enetc_hw *enetc_hw = &hw->hw;
 501
 502         enetc_port_wr(enetc_hw, ENETC_PM0_STAT_CONFIG, ENETC_CLEAR_STATS);
 503 }
 504
 505 static void
 506 enetc_dev_close(struct rte_eth_dev *dev)
 507 {
 508         uint16_t i;
 509
 510         PMD_INIT_FUNC_TRACE();
 511         enetc_dev_stop(dev);
 512
 513         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 514                 enetc_rx_queue_release(dev->data->rx_queues[i]);
 515                 dev->data->rx_queues[i] = NULL;
 516         }
 517         dev->data->nb_rx_queues = 0;
 518
 519         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 520                 enetc_tx_queue_release(dev->data->tx_queues[i]);
 521                 dev->data->tx_queues[i] = NULL;
 522         }
 523         dev->data->nb_tx_queues = 0;
 524 }
 525
 526 static void
 527 enetc_promiscuous_enable(struct rte_eth_dev *dev)
 528 {
 529         struct enetc_eth_hw *hw =
 530                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 531         struct enetc_hw *enetc_hw = &hw->hw;
 532         uint32_t psipmr = 0;
 533
 534         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR);
 535
 536         /* Setting to enable promiscuous mode*/
 537         psipmr |= ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0);
 538
 539         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 540 }
 541
 542 static void
 543 enetc_promiscuous_disable(struct rte_eth_dev *dev)
 544 {
 545         struct enetc_eth_hw *hw =
 546                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 547         struct enetc_hw *enetc_hw = &hw->hw;
 548         uint32_t psipmr = 0;
 549
 550         /* Setting to disable promiscuous mode for SI0*/
 551         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR);
 552         psipmr &= (~ENETC_PSIPMR_SET_UP(0));
 553
 554         if (dev->data->all_multicast == 0)
 555                 psipmr &= (~ENETC_PSIPMR_SET_MP(0));
 556
 557         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 558 }
 559
 560 static void
 561 enetc_allmulticast_enable(struct rte_eth_dev *dev)
 562 {
 563         struct enetc_eth_hw *hw =
 564                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 565         struct enetc_hw *enetc_hw = &hw->hw;
 566         uint32_t psipmr = 0;
 567
 568         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR);
 569
 570         /* Setting to enable allmulticast mode for SI0*/
 571         psipmr |= ENETC_PSIPMR_SET_MP(0);
 572
 573         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 574 }
 575
 576 static void
 577 enetc_allmulticast_disable(struct rte_eth_dev *dev)
 578 {
 579         struct enetc_eth_hw *hw =
 580                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 581         struct enetc_hw *enetc_hw = &hw->hw;
 582         uint32_t psipmr = 0;
 583
 584         if (dev->data->promiscuous == 1)
 585                 return; /* must remain in all_multicast mode */
 586
 587         /* Setting to disable all multicast mode for SI0*/
 588         psipmr = enetc_port_rd(enetc_hw, ENETC_PSIPMR) &
 589                                ~(ENETC_PSIPMR_SET_MP(0));
 590
 591         enetc_port_wr(enetc_hw, ENETC_PSIPMR, psipmr);
 592 }
 593
 594 static int
 595 enetc_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 596 {
 597         struct enetc_eth_hw *hw =
 598                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 599         struct enetc_hw *enetc_hw = &hw->hw;
 600         uint32_t frame_size = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
 601
 602         /* check that mtu is within the allowed range */
 603         if (mtu < ENETC_MAC_MINFRM_SIZE || frame_size > ENETC_MAC_MAXFRM_SIZE)
 604                 return -EINVAL;
 605
 606         /*
 607          * Refuse mtu that requires the support of scattered packets
 608          * when this feature has not been enabled before.
 609          */
 610         if (dev->data->min_rx_buf_size &&
 611                 !dev->data->scattered_rx && frame_size >
 612                 dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM) {
 613                 ENETC_PMD_ERR("SG not enabled, will not fit in one buffer");
 614                 return -EINVAL;
 615         }
 616
 617         if (frame_size > RTE_ETHER_MAX_LEN)
 618                 dev->data->dev_conf.rxmode.offloads &=
 619                                                 DEV_RX_OFFLOAD_JUMBO_FRAME;
 620         else
 621                 dev->data->dev_conf.rxmode.offloads &=
 622                                                 ~DEV_RX_OFFLOAD_JUMBO_FRAME;
 623
 624         enetc_port_wr(enetc_hw, ENETC_PTCMSDUR(0), ENETC_MAC_MAXFRM_SIZE);
 625         enetc_port_wr(enetc_hw, ENETC_PTXMBAR, 2 * ENETC_MAC_MAXFRM_SIZE);
 626
 627         dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
 628
 629         /*setting the MTU*/
 630         enetc_port_wr(enetc_hw, ENETC_PM0_MAXFRM, ENETC_SET_MAXFRM(frame_size) |
 631                       ENETC_SET_TX_MTU(ENETC_MAC_MAXFRM_SIZE));
 632
 633         return 0;
 634 }
 635
 636 static int
 637 enetc_dev_configure(struct rte_eth_dev *dev)
 638 {
 639         struct enetc_eth_hw *hw =
 640                 ENETC_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 641         struct enetc_hw *enetc_hw = &hw->hw;
 642         struct rte_eth_conf *eth_conf = &dev->data->dev_conf;
 643         uint64_t rx_offloads = eth_conf->rxmode.offloads;
 644         uint32_t checksum = L3_CKSUM | L4_CKSUM;
 645
 646         PMD_INIT_FUNC_TRACE();
 647
 648         if (rx_offloads & DEV_RX_OFFLOAD_JUMBO_FRAME) {
 649                 uint32_t max_len;
 650
 651                 max_len = dev->data->dev_conf.rxmode.max_rx_pkt_len;
 652
 653                 enetc_port_wr(enetc_hw, ENETC_PM0_MAXFRM,
 654                               ENETC_SET_MAXFRM(max_len));
 655                 enetc_port_wr(enetc_hw, ENETC_PTCMSDUR(0),
 656                               ENETC_MAC_MAXFRM_SIZE);
 657                 enetc_port_wr(enetc_hw, ENETC_PTXMBAR,
 658                               2 * ENETC_MAC_MAXFRM_SIZE);
 659                 dev->data->mtu = RTE_ETHER_MAX_LEN - RTE_ETHER_HDR_LEN -
 660                         RTE_ETHER_CRC_LEN;
 661         }
 662
 663         if (rx_offloads & DEV_RX_OFFLOAD_KEEP_CRC) {
 664                 int config;
 665
 666                 config = enetc_port_rd(enetc_hw, ENETC_PM0_CMD_CFG);
 667                 config |= ENETC_PM0_CRC;
 668                 enetc_port_wr(enetc_hw, ENETC_PM0_CMD_CFG, config);
 669         }
 670
 671         if (rx_offloads & DEV_RX_OFFLOAD_IPV4_CKSUM)
 672                 checksum &= ~L3_CKSUM;
 673
 674         if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM | DEV_RX_OFFLOAD_TCP_CKSUM))
 675                 checksum &= ~L4_CKSUM;
 676
 677         enetc_port_wr(enetc_hw, ENETC_PAR_PORT_CFG, checksum);
 678
 679
 680         return 0;
 681 }
 682
 683 static int
 684 enetc_rx_queue_start(struct rte_eth_dev *dev, uint16_t qidx)
 685 {
 686         struct enetc_eth_adapter *priv =
 687                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 688         struct enetc_bdr *rx_ring;
 689         uint32_t rx_data;
 690
 691         rx_ring = dev->data->rx_queues[qidx];
 692         if (dev->data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED) {
 693                 rx_data = enetc_rxbdr_rd(&priv->hw.hw, rx_ring->index,
 694                                          ENETC_RBMR);
 695                 rx_data = rx_data | ENETC_RBMR_EN;
 696                 enetc_rxbdr_wr(&priv->hw.hw, rx_ring->index, ENETC_RBMR,
 697                                rx_data);
 698                 dev->data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
 699         }
 700
 701         return 0;
 702 }
 703
 704 static int
 705 enetc_rx_queue_stop(struct rte_eth_dev *dev, uint16_t qidx)
 706 {
 707         struct enetc_eth_adapter *priv =
 708                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 709         struct enetc_bdr *rx_ring;
 710         uint32_t rx_data;
 711
 712         rx_ring = dev->data->rx_queues[qidx];
 713         if (dev->data->rx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED) {
 714                 rx_data = enetc_rxbdr_rd(&priv->hw.hw, rx_ring->index,
 715                                          ENETC_RBMR);
 716                 rx_data = rx_data & (~ENETC_RBMR_EN);
 717                 enetc_rxbdr_wr(&priv->hw.hw, rx_ring->index, ENETC_RBMR,
 718                                rx_data);
 719                 dev->data->rx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
 720         }
 721
 722         return 0;
 723 }
 724
 725 static int
 726 enetc_tx_queue_start(struct rte_eth_dev *dev, uint16_t qidx)
 727 {
 728         struct enetc_eth_adapter *priv =
 729                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 730         struct enetc_bdr *tx_ring;
 731         uint32_t tx_data;
 732
 733         tx_ring = dev->data->tx_queues[qidx];
 734         if (dev->data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STOPPED) {
 735                 tx_data = enetc_txbdr_rd(&priv->hw.hw, tx_ring->index,
 736                                          ENETC_TBMR);
 737                 tx_data = tx_data | ENETC_TBMR_EN;
 738                 enetc_txbdr_wr(&priv->hw.hw, tx_ring->index, ENETC_TBMR,
 739                                tx_data);
 740                 dev->data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STARTED;
 741         }
 742
 743         return 0;
 744 }
 745
 746 static int
 747 enetc_tx_queue_stop(struct rte_eth_dev *dev, uint16_t qidx)
 748 {
 749         struct enetc_eth_adapter *priv =
 750                         ENETC_DEV_PRIVATE(dev->data->dev_private);
 751         struct enetc_bdr *tx_ring;
 752         uint32_t tx_data;
 753
 754         tx_ring = dev->data->tx_queues[qidx];
 755         if (dev->data->tx_queue_state[qidx] == RTE_ETH_QUEUE_STATE_STARTED) {
 756                 tx_data = enetc_txbdr_rd(&priv->hw.hw, tx_ring->index,
 757                                          ENETC_TBMR);
 758                 tx_data = tx_data & (~ENETC_TBMR_EN);
 759                 enetc_txbdr_wr(&priv->hw.hw, tx_ring->index, ENETC_TBMR,
 760                                tx_data);
 761                 dev->data->tx_queue_state[qidx] = RTE_ETH_QUEUE_STATE_STOPPED;
 762         }
 763
 764         return 0;
 765 }
 766
 767 /*
 768  * The set of PCI devices this driver supports
 769  */
 770 static const struct rte_pci_id pci_id_enetc_map[] = {
 771         { RTE_PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID) },
 772         { RTE_PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_VF) },
 773         { .vendor_id = 0, /* sentinel */ },
 774 };
 775
 776 /* Features supported by this driver */
 777 static const struct eth_dev_ops enetc_ops = {
 778         .dev_configure        = enetc_dev_configure,
 779         .dev_start            = enetc_dev_start,
 780         .dev_stop             = enetc_dev_stop,
 781         .dev_close            = enetc_dev_close,
 782         .link_update          = enetc_link_update,
 783         .stats_get            = enetc_stats_get,
 784         .stats_reset          = enetc_stats_reset,
 785         .promiscuous_enable   = enetc_promiscuous_enable,
 786         .promiscuous_disable  = enetc_promiscuous_disable,
 787         .allmulticast_enable  = enetc_allmulticast_enable,
 788         .allmulticast_disable = enetc_allmulticast_disable,
 789         .dev_infos_get        = enetc_dev_infos_get,
 790         .mtu_set              = enetc_mtu_set,
 791         .rx_queue_setup       = enetc_rx_queue_setup,
 792         .rx_queue_start       = enetc_rx_queue_start,
 793         .rx_queue_stop        = enetc_rx_queue_stop,
 794         .rx_queue_release     = enetc_rx_queue_release,
 795         .tx_queue_setup       = enetc_tx_queue_setup,
 796         .tx_queue_start       = enetc_tx_queue_start,
 797         .tx_queue_stop        = enetc_tx_queue_stop,
 798         .tx_queue_release     = enetc_tx_queue_release,
 799         .dev_supported_ptypes_get = enetc_supported_ptypes_get,
 800 };
 801
 802 /**
 803  * Initialisation of the enetc device
 804  *
 805  * @param eth_dev
 806  *   - Pointer to the structure rte_eth_dev
 807  *
 808  * @return
 809  *   - On success, zero.
 810  *   - On failure, negative value.
 811  */
 812 static int
 813 enetc_dev_init(struct rte_eth_dev *eth_dev)
 814 {
 815         int error = 0;
 816         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 817         struct enetc_eth_hw *hw =
 818                 ENETC_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
 819
 820         PMD_INIT_FUNC_TRACE();
 821         eth_dev->dev_ops = &enetc_ops;
 822         eth_dev->rx_pkt_burst = &enetc_recv_pkts;
 823         eth_dev->tx_pkt_burst = &enetc_xmit_pkts;
 824
 825         /* Retrieving and storing the HW base address of device */
 826         hw->hw.reg = (void *)pci_dev->mem_resource[0].addr;
 827         hw->device_id = pci_dev->id.device_id;
 828
 829         error = enetc_hardware_init(hw);
 830         if (error != 0) {
 831                 ENETC_PMD_ERR("Hardware initialization failed");
 832                 return -1;
 833         }
 834
 835         /* Allocate memory for storing MAC addresses */
 836         eth_dev->data->mac_addrs = rte_zmalloc("enetc_eth",
 837                                         RTE_ETHER_ADDR_LEN, 0);
 838         if (!eth_dev->data->mac_addrs) {
 839                 ENETC_PMD_ERR("Failed to allocate %d bytes needed to "
 840                               "store MAC addresses",
 841                               RTE_ETHER_ADDR_LEN * 1);
 842                 error = -ENOMEM;
 843                 return -1;
 844         }
 845
 846         /* Copy the permanent MAC address */
 847         rte_ether_addr_copy((struct rte_ether_addr *)hw->mac.addr,
 848                         &eth_dev->data->mac_addrs[0]);
 849
 850         /* Set MTU */
 851         enetc_port_wr(&hw->hw, ENETC_PM0_MAXFRM,
 852                       ENETC_SET_MAXFRM(RTE_ETHER_MAX_LEN));
 853         eth_dev->data->mtu = RTE_ETHER_MAX_LEN - RTE_ETHER_HDR_LEN -
 854                 RTE_ETHER_CRC_LEN;
 855
 856         ENETC_PMD_DEBUG("port_id %d vendorID=0x%x deviceID=0x%x",
 857                         eth_dev->data->port_id, pci_dev->id.vendor_id,
 858                         pci_dev->id.device_id);
 859         return 0;
 860 }
 861
 862 static int
 863 enetc_dev_uninit(struct rte_eth_dev *eth_dev __rte_unused)
 864 {
 865         PMD_INIT_FUNC_TRACE();
 866         return 0;
 867 }
 868
 869 static int
 870 enetc_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 871                            struct rte_pci_device *pci_dev)
 872 {
 873         return rte_eth_dev_pci_generic_probe(pci_dev,
 874                                              sizeof(struct enetc_eth_adapter),
 875                                              enetc_dev_init);
 876 }
 877
 878 static int
 879 enetc_pci_remove(struct rte_pci_device *pci_dev)
 880 {
 881         return rte_eth_dev_pci_generic_remove(pci_dev, enetc_dev_uninit);
 882 }
 883
 884 static struct rte_pci_driver rte_enetc_pmd = {
 885         .id_table = pci_id_enetc_map,
 886         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 887         .probe = enetc_pci_probe,
 888         .remove = enetc_pci_remove,
 889 };
 890
 891 RTE_PMD_REGISTER_PCI(net_enetc, rte_enetc_pmd);
 892 RTE_PMD_REGISTER_PCI_TABLE(net_enetc, pci_id_enetc_map);
 893 RTE_PMD_REGISTER_KMOD_DEP(net_enetc, "* vfio-pci");
 894
 895 RTE_INIT(enetc_pmd_init_log)
 896 {
 897         enetc_logtype_pmd = rte_log_register("pmd.net.enetc");
 898         if (enetc_logtype_pmd >= 0)
 899                 rte_log_set_level(enetc_logtype_pmd, RTE_LOG_NOTICE);
 900 }