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 = ð_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 = ð_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 ð_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 } 901