1 /*- 2 * Copyright (c) 2016 Solarflare Communications Inc. 3 * All rights reserved. 4 * 5 * This software was jointly developed between OKTET Labs (under contract 6 * for Solarflare) and Solarflare Communications, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright notice, 12 * this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright notice, 14 * this list of conditions and the following disclaimer in the documentation 15 * and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <rte_dev.h> 31 #include <rte_ethdev.h> 32 #include <rte_pci.h> 33 34 #include "efx.h" 35 36 #include "sfc.h" 37 #include "sfc_debug.h" 38 #include "sfc_log.h" 39 #include "sfc_kvargs.h" 40 #include "sfc_ev.h" 41 #include "sfc_rx.h" 42 #include "sfc_tx.h" 43 44 45 static void 46 sfc_dev_infos_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info) 47 { 48 struct sfc_adapter *sa = dev->data->dev_private; 49 50 sfc_log_init(sa, "entry"); 51 52 dev_info->pci_dev = RTE_DEV_TO_PCI(dev->device); 53 dev_info->max_rx_pktlen = EFX_MAC_PDU_MAX; 54 55 /* Autonegotiation may be disabled */ 56 dev_info->speed_capa = ETH_LINK_SPEED_FIXED; 57 if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_1000FDX) 58 dev_info->speed_capa |= ETH_LINK_SPEED_1G; 59 if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_10000FDX) 60 dev_info->speed_capa |= ETH_LINK_SPEED_10G; 61 if (sa->port.phy_adv_cap_mask & EFX_PHY_CAP_40000FDX) 62 dev_info->speed_capa |= ETH_LINK_SPEED_40G; 63 64 dev_info->max_rx_queues = sa->rxq_max; 65 dev_info->max_tx_queues = sa->txq_max; 66 67 /* By default packets are dropped if no descriptors are available */ 68 dev_info->default_rxconf.rx_drop_en = 1; 69 70 dev_info->tx_offload_capa = 71 DEV_TX_OFFLOAD_IPV4_CKSUM | 72 DEV_TX_OFFLOAD_UDP_CKSUM | 73 DEV_TX_OFFLOAD_TCP_CKSUM; 74 75 dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOVLANOFFL | 76 ETH_TXQ_FLAGS_NOXSUMSCTP; 77 78 dev_info->rx_desc_lim.nb_max = EFX_RXQ_MAXNDESCS; 79 dev_info->rx_desc_lim.nb_min = EFX_RXQ_MINNDESCS; 80 /* The RXQ hardware requires that the descriptor count is a power 81 * of 2, but rx_desc_lim cannot properly describe that constraint. 82 */ 83 dev_info->rx_desc_lim.nb_align = EFX_RXQ_MINNDESCS; 84 85 dev_info->tx_desc_lim.nb_max = sa->txq_max_entries; 86 dev_info->tx_desc_lim.nb_min = EFX_TXQ_MINNDESCS; 87 /* 88 * The TXQ hardware requires that the descriptor count is a power 89 * of 2, but tx_desc_lim cannot properly describe that constraint 90 */ 91 dev_info->tx_desc_lim.nb_align = EFX_TXQ_MINNDESCS; 92 } 93 94 static int 95 sfc_dev_configure(struct rte_eth_dev *dev) 96 { 97 struct rte_eth_dev_data *dev_data = dev->data; 98 struct sfc_adapter *sa = dev_data->dev_private; 99 int rc; 100 101 sfc_log_init(sa, "entry n_rxq=%u n_txq=%u", 102 dev_data->nb_rx_queues, dev_data->nb_tx_queues); 103 104 sfc_adapter_lock(sa); 105 switch (sa->state) { 106 case SFC_ADAPTER_CONFIGURED: 107 sfc_close(sa); 108 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED); 109 /* FALLTHROUGH */ 110 case SFC_ADAPTER_INITIALIZED: 111 rc = sfc_configure(sa); 112 break; 113 default: 114 sfc_err(sa, "unexpected adapter state %u to configure", 115 sa->state); 116 rc = EINVAL; 117 break; 118 } 119 sfc_adapter_unlock(sa); 120 121 sfc_log_init(sa, "done %d", rc); 122 SFC_ASSERT(rc >= 0); 123 return -rc; 124 } 125 126 static int 127 sfc_dev_start(struct rte_eth_dev *dev) 128 { 129 struct sfc_adapter *sa = dev->data->dev_private; 130 int rc; 131 132 sfc_log_init(sa, "entry"); 133 134 sfc_adapter_lock(sa); 135 rc = sfc_start(sa); 136 sfc_adapter_unlock(sa); 137 138 sfc_log_init(sa, "done %d", rc); 139 SFC_ASSERT(rc >= 0); 140 return -rc; 141 } 142 143 static int 144 sfc_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete) 145 { 146 struct sfc_adapter *sa = dev->data->dev_private; 147 struct rte_eth_link *dev_link = &dev->data->dev_link; 148 struct rte_eth_link old_link; 149 struct rte_eth_link current_link; 150 151 sfc_log_init(sa, "entry"); 152 153 if (sa->state != SFC_ADAPTER_STARTED) 154 return 0; 155 156 retry: 157 EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t)); 158 *(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link); 159 160 if (wait_to_complete) { 161 efx_link_mode_t link_mode; 162 163 efx_port_poll(sa->nic, &link_mode); 164 sfc_port_link_mode_to_info(link_mode, ¤t_link); 165 166 if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link, 167 *(uint64_t *)&old_link, 168 *(uint64_t *)¤t_link)) 169 goto retry; 170 } else { 171 sfc_ev_mgmt_qpoll(sa); 172 *(int64_t *)¤t_link = 173 rte_atomic64_read((rte_atomic64_t *)dev_link); 174 } 175 176 if (old_link.link_status != current_link.link_status) 177 sfc_info(sa, "Link status is %s", 178 current_link.link_status ? "UP" : "DOWN"); 179 180 return old_link.link_status == current_link.link_status ? 0 : -1; 181 } 182 183 static void 184 sfc_dev_stop(struct rte_eth_dev *dev) 185 { 186 struct sfc_adapter *sa = dev->data->dev_private; 187 188 sfc_log_init(sa, "entry"); 189 190 sfc_adapter_lock(sa); 191 sfc_stop(sa); 192 sfc_adapter_unlock(sa); 193 194 sfc_log_init(sa, "done"); 195 } 196 197 static void 198 sfc_dev_close(struct rte_eth_dev *dev) 199 { 200 struct sfc_adapter *sa = dev->data->dev_private; 201 202 sfc_log_init(sa, "entry"); 203 204 sfc_adapter_lock(sa); 205 switch (sa->state) { 206 case SFC_ADAPTER_STARTED: 207 sfc_stop(sa); 208 SFC_ASSERT(sa->state == SFC_ADAPTER_CONFIGURED); 209 /* FALLTHROUGH */ 210 case SFC_ADAPTER_CONFIGURED: 211 sfc_close(sa); 212 SFC_ASSERT(sa->state == SFC_ADAPTER_INITIALIZED); 213 /* FALLTHROUGH */ 214 case SFC_ADAPTER_INITIALIZED: 215 break; 216 default: 217 sfc_err(sa, "unexpected adapter state %u on close", sa->state); 218 break; 219 } 220 sfc_adapter_unlock(sa); 221 222 sfc_log_init(sa, "done"); 223 } 224 225 static int 226 sfc_rx_queue_setup(struct rte_eth_dev *dev, uint16_t rx_queue_id, 227 uint16_t nb_rx_desc, unsigned int socket_id, 228 const struct rte_eth_rxconf *rx_conf, 229 struct rte_mempool *mb_pool) 230 { 231 struct sfc_adapter *sa = dev->data->dev_private; 232 int rc; 233 234 sfc_log_init(sa, "RxQ=%u nb_rx_desc=%u socket_id=%u", 235 rx_queue_id, nb_rx_desc, socket_id); 236 237 sfc_adapter_lock(sa); 238 239 rc = sfc_rx_qinit(sa, rx_queue_id, nb_rx_desc, socket_id, 240 rx_conf, mb_pool); 241 if (rc != 0) 242 goto fail_rx_qinit; 243 244 dev->data->rx_queues[rx_queue_id] = sa->rxq_info[rx_queue_id].rxq; 245 246 sfc_adapter_unlock(sa); 247 248 return 0; 249 250 fail_rx_qinit: 251 sfc_adapter_unlock(sa); 252 SFC_ASSERT(rc > 0); 253 return -rc; 254 } 255 256 static void 257 sfc_rx_queue_release(void *queue) 258 { 259 struct sfc_rxq *rxq = queue; 260 struct sfc_adapter *sa; 261 unsigned int sw_index; 262 263 if (rxq == NULL) 264 return; 265 266 sa = rxq->evq->sa; 267 sfc_adapter_lock(sa); 268 269 sw_index = sfc_rxq_sw_index(rxq); 270 271 sfc_log_init(sa, "RxQ=%u", sw_index); 272 273 sa->eth_dev->data->rx_queues[sw_index] = NULL; 274 275 sfc_rx_qfini(sa, sw_index); 276 277 sfc_adapter_unlock(sa); 278 } 279 280 static int 281 sfc_tx_queue_setup(struct rte_eth_dev *dev, uint16_t tx_queue_id, 282 uint16_t nb_tx_desc, unsigned int socket_id, 283 const struct rte_eth_txconf *tx_conf) 284 { 285 struct sfc_adapter *sa = dev->data->dev_private; 286 int rc; 287 288 sfc_log_init(sa, "TxQ = %u, nb_tx_desc = %u, socket_id = %u", 289 tx_queue_id, nb_tx_desc, socket_id); 290 291 sfc_adapter_lock(sa); 292 293 rc = sfc_tx_qinit(sa, tx_queue_id, nb_tx_desc, socket_id, tx_conf); 294 if (rc != 0) 295 goto fail_tx_qinit; 296 297 dev->data->tx_queues[tx_queue_id] = sa->txq_info[tx_queue_id].txq; 298 299 sfc_adapter_unlock(sa); 300 return 0; 301 302 fail_tx_qinit: 303 sfc_adapter_unlock(sa); 304 SFC_ASSERT(rc > 0); 305 return -rc; 306 } 307 308 static void 309 sfc_tx_queue_release(void *queue) 310 { 311 struct sfc_txq *txq = queue; 312 unsigned int sw_index; 313 struct sfc_adapter *sa; 314 315 if (txq == NULL) 316 return; 317 318 sw_index = sfc_txq_sw_index(txq); 319 320 SFC_ASSERT(txq->evq != NULL); 321 sa = txq->evq->sa; 322 323 sfc_log_init(sa, "TxQ = %u", sw_index); 324 325 sfc_adapter_lock(sa); 326 327 SFC_ASSERT(sw_index < sa->eth_dev->data->nb_tx_queues); 328 sa->eth_dev->data->tx_queues[sw_index] = NULL; 329 330 sfc_tx_qfini(sa, sw_index); 331 332 sfc_adapter_unlock(sa); 333 } 334 335 static void 336 sfc_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats) 337 { 338 struct sfc_adapter *sa = dev->data->dev_private; 339 struct sfc_port *port = &sa->port; 340 uint64_t *mac_stats; 341 342 rte_spinlock_lock(&port->mac_stats_lock); 343 344 if (sfc_port_update_mac_stats(sa) != 0) 345 goto unlock; 346 347 mac_stats = port->mac_stats_buf; 348 349 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, 350 EFX_MAC_VADAPTER_RX_UNICAST_PACKETS)) { 351 stats->ipackets = 352 mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_PACKETS] + 353 mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_PACKETS] + 354 mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_PACKETS]; 355 stats->opackets = 356 mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_PACKETS] + 357 mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_PACKETS] + 358 mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_PACKETS]; 359 stats->ibytes = 360 mac_stats[EFX_MAC_VADAPTER_RX_UNICAST_BYTES] + 361 mac_stats[EFX_MAC_VADAPTER_RX_MULTICAST_BYTES] + 362 mac_stats[EFX_MAC_VADAPTER_RX_BROADCAST_BYTES]; 363 stats->obytes = 364 mac_stats[EFX_MAC_VADAPTER_TX_UNICAST_BYTES] + 365 mac_stats[EFX_MAC_VADAPTER_TX_MULTICAST_BYTES] + 366 mac_stats[EFX_MAC_VADAPTER_TX_BROADCAST_BYTES]; 367 stats->imissed = mac_stats[EFX_MAC_VADAPTER_RX_OVERFLOW]; 368 stats->ierrors = mac_stats[EFX_MAC_VADAPTER_RX_BAD_PACKETS]; 369 stats->oerrors = mac_stats[EFX_MAC_VADAPTER_TX_BAD_PACKETS]; 370 } else { 371 stats->ipackets = mac_stats[EFX_MAC_RX_PKTS]; 372 stats->opackets = mac_stats[EFX_MAC_TX_PKTS]; 373 stats->ibytes = mac_stats[EFX_MAC_RX_OCTETS]; 374 stats->obytes = mac_stats[EFX_MAC_TX_OCTETS]; 375 /* 376 * Take into account stats which are whenever supported 377 * on EF10. If some stat is not supported by current 378 * firmware variant or HW revision, it is guaranteed 379 * to be zero in mac_stats. 380 */ 381 stats->imissed = 382 mac_stats[EFX_MAC_RX_NODESC_DROP_CNT] + 383 mac_stats[EFX_MAC_PM_TRUNC_BB_OVERFLOW] + 384 mac_stats[EFX_MAC_PM_DISCARD_BB_OVERFLOW] + 385 mac_stats[EFX_MAC_PM_TRUNC_VFIFO_FULL] + 386 mac_stats[EFX_MAC_PM_DISCARD_VFIFO_FULL] + 387 mac_stats[EFX_MAC_PM_TRUNC_QBB] + 388 mac_stats[EFX_MAC_PM_DISCARD_QBB] + 389 mac_stats[EFX_MAC_PM_DISCARD_MAPPING] + 390 mac_stats[EFX_MAC_RXDP_Q_DISABLED_PKTS] + 391 mac_stats[EFX_MAC_RXDP_DI_DROPPED_PKTS]; 392 stats->ierrors = 393 mac_stats[EFX_MAC_RX_FCS_ERRORS] + 394 mac_stats[EFX_MAC_RX_ALIGN_ERRORS] + 395 mac_stats[EFX_MAC_RX_JABBER_PKTS]; 396 /* no oerrors counters supported on EF10 */ 397 } 398 399 unlock: 400 rte_spinlock_unlock(&port->mac_stats_lock); 401 } 402 403 static int 404 sfc_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats, 405 unsigned int xstats_count) 406 { 407 struct sfc_adapter *sa = dev->data->dev_private; 408 struct sfc_port *port = &sa->port; 409 uint64_t *mac_stats; 410 int rc; 411 unsigned int i; 412 int nstats = 0; 413 414 rte_spinlock_lock(&port->mac_stats_lock); 415 416 rc = sfc_port_update_mac_stats(sa); 417 if (rc != 0) { 418 SFC_ASSERT(rc > 0); 419 nstats = -rc; 420 goto unlock; 421 } 422 423 mac_stats = port->mac_stats_buf; 424 425 for (i = 0; i < EFX_MAC_NSTATS; ++i) { 426 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) { 427 if (xstats != NULL && nstats < (int)xstats_count) { 428 xstats[nstats].id = nstats; 429 xstats[nstats].value = mac_stats[i]; 430 } 431 nstats++; 432 } 433 } 434 435 unlock: 436 rte_spinlock_unlock(&port->mac_stats_lock); 437 438 return nstats; 439 } 440 441 static int 442 sfc_xstats_get_names(struct rte_eth_dev *dev, 443 struct rte_eth_xstat_name *xstats_names, 444 unsigned int xstats_count) 445 { 446 struct sfc_adapter *sa = dev->data->dev_private; 447 struct sfc_port *port = &sa->port; 448 unsigned int i; 449 unsigned int nstats = 0; 450 451 for (i = 0; i < EFX_MAC_NSTATS; ++i) { 452 if (EFX_MAC_STAT_SUPPORTED(port->mac_stats_mask, i)) { 453 if (xstats_names != NULL && nstats < xstats_count) 454 strncpy(xstats_names[nstats].name, 455 efx_mac_stat_name(sa->nic, i), 456 sizeof(xstats_names[0].name)); 457 nstats++; 458 } 459 } 460 461 return nstats; 462 } 463 464 static int 465 sfc_flow_ctrl_get(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) 466 { 467 struct sfc_adapter *sa = dev->data->dev_private; 468 unsigned int wanted_fc, link_fc; 469 470 memset(fc_conf, 0, sizeof(*fc_conf)); 471 472 sfc_adapter_lock(sa); 473 474 if (sa->state == SFC_ADAPTER_STARTED) 475 efx_mac_fcntl_get(sa->nic, &wanted_fc, &link_fc); 476 else 477 link_fc = sa->port.flow_ctrl; 478 479 switch (link_fc) { 480 case 0: 481 fc_conf->mode = RTE_FC_NONE; 482 break; 483 case EFX_FCNTL_RESPOND: 484 fc_conf->mode = RTE_FC_RX_PAUSE; 485 break; 486 case EFX_FCNTL_GENERATE: 487 fc_conf->mode = RTE_FC_TX_PAUSE; 488 break; 489 case (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE): 490 fc_conf->mode = RTE_FC_FULL; 491 break; 492 default: 493 sfc_err(sa, "%s: unexpected flow control value %#x", 494 __func__, link_fc); 495 } 496 497 fc_conf->autoneg = sa->port.flow_ctrl_autoneg; 498 499 sfc_adapter_unlock(sa); 500 501 return 0; 502 } 503 504 static int 505 sfc_flow_ctrl_set(struct rte_eth_dev *dev, struct rte_eth_fc_conf *fc_conf) 506 { 507 struct sfc_adapter *sa = dev->data->dev_private; 508 struct sfc_port *port = &sa->port; 509 unsigned int fcntl; 510 int rc; 511 512 if (fc_conf->high_water != 0 || fc_conf->low_water != 0 || 513 fc_conf->pause_time != 0 || fc_conf->send_xon != 0 || 514 fc_conf->mac_ctrl_frame_fwd != 0) { 515 sfc_err(sa, "unsupported flow control settings specified"); 516 rc = EINVAL; 517 goto fail_inval; 518 } 519 520 switch (fc_conf->mode) { 521 case RTE_FC_NONE: 522 fcntl = 0; 523 break; 524 case RTE_FC_RX_PAUSE: 525 fcntl = EFX_FCNTL_RESPOND; 526 break; 527 case RTE_FC_TX_PAUSE: 528 fcntl = EFX_FCNTL_GENERATE; 529 break; 530 case RTE_FC_FULL: 531 fcntl = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE; 532 break; 533 default: 534 rc = EINVAL; 535 goto fail_inval; 536 } 537 538 sfc_adapter_lock(sa); 539 540 if (sa->state == SFC_ADAPTER_STARTED) { 541 rc = efx_mac_fcntl_set(sa->nic, fcntl, fc_conf->autoneg); 542 if (rc != 0) 543 goto fail_mac_fcntl_set; 544 } 545 546 port->flow_ctrl = fcntl; 547 port->flow_ctrl_autoneg = fc_conf->autoneg; 548 549 sfc_adapter_unlock(sa); 550 551 return 0; 552 553 fail_mac_fcntl_set: 554 sfc_adapter_unlock(sa); 555 fail_inval: 556 SFC_ASSERT(rc > 0); 557 return -rc; 558 } 559 560 static int 561 sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu) 562 { 563 struct sfc_adapter *sa = dev->data->dev_private; 564 size_t pdu = EFX_MAC_PDU(mtu); 565 size_t old_pdu; 566 int rc; 567 568 sfc_log_init(sa, "mtu=%u", mtu); 569 570 rc = EINVAL; 571 if (pdu < EFX_MAC_PDU_MIN) { 572 sfc_err(sa, "too small MTU %u (PDU size %u less than min %u)", 573 (unsigned int)mtu, (unsigned int)pdu, 574 EFX_MAC_PDU_MIN); 575 goto fail_inval; 576 } 577 if (pdu > EFX_MAC_PDU_MAX) { 578 sfc_err(sa, "too big MTU %u (PDU size %u greater than max %u)", 579 (unsigned int)mtu, (unsigned int)pdu, 580 EFX_MAC_PDU_MAX); 581 goto fail_inval; 582 } 583 584 sfc_adapter_lock(sa); 585 586 if (pdu != sa->port.pdu) { 587 if (sa->state == SFC_ADAPTER_STARTED) { 588 sfc_stop(sa); 589 590 old_pdu = sa->port.pdu; 591 sa->port.pdu = pdu; 592 rc = sfc_start(sa); 593 if (rc != 0) 594 goto fail_start; 595 } else { 596 sa->port.pdu = pdu; 597 } 598 } 599 600 /* 601 * The driver does not use it, but other PMDs update jumbo_frame 602 * flag and max_rx_pkt_len when MTU is set. 603 */ 604 dev->data->dev_conf.rxmode.jumbo_frame = (mtu > ETHER_MAX_LEN); 605 dev->data->dev_conf.rxmode.max_rx_pkt_len = sa->port.pdu; 606 607 sfc_adapter_unlock(sa); 608 609 sfc_log_init(sa, "done"); 610 return 0; 611 612 fail_start: 613 sa->port.pdu = old_pdu; 614 if (sfc_start(sa) != 0) 615 sfc_err(sa, "cannot start with neither new (%u) nor old (%u) " 616 "PDU max size - port is stopped", 617 (unsigned int)pdu, (unsigned int)old_pdu); 618 sfc_adapter_unlock(sa); 619 620 fail_inval: 621 sfc_log_init(sa, "failed %d", rc); 622 SFC_ASSERT(rc > 0); 623 return -rc; 624 } 625 626 static const struct eth_dev_ops sfc_eth_dev_ops = { 627 .dev_configure = sfc_dev_configure, 628 .dev_start = sfc_dev_start, 629 .dev_stop = sfc_dev_stop, 630 .dev_close = sfc_dev_close, 631 .link_update = sfc_dev_link_update, 632 .stats_get = sfc_stats_get, 633 .xstats_get = sfc_xstats_get, 634 .xstats_get_names = sfc_xstats_get_names, 635 .dev_infos_get = sfc_dev_infos_get, 636 .mtu_set = sfc_dev_set_mtu, 637 .rx_queue_setup = sfc_rx_queue_setup, 638 .rx_queue_release = sfc_rx_queue_release, 639 .tx_queue_setup = sfc_tx_queue_setup, 640 .tx_queue_release = sfc_tx_queue_release, 641 .flow_ctrl_get = sfc_flow_ctrl_get, 642 .flow_ctrl_set = sfc_flow_ctrl_set, 643 }; 644 645 static int 646 sfc_eth_dev_init(struct rte_eth_dev *dev) 647 { 648 struct sfc_adapter *sa = dev->data->dev_private; 649 struct rte_pci_device *pci_dev = SFC_DEV_TO_PCI(dev); 650 int rc; 651 const efx_nic_cfg_t *encp; 652 const struct ether_addr *from; 653 654 /* Required for logging */ 655 sa->eth_dev = dev; 656 657 /* Copy PCI device info to the dev->data */ 658 rte_eth_copy_pci_info(dev, pci_dev); 659 660 rc = sfc_kvargs_parse(sa); 661 if (rc != 0) 662 goto fail_kvargs_parse; 663 664 rc = sfc_kvargs_process(sa, SFC_KVARG_DEBUG_INIT, 665 sfc_kvarg_bool_handler, &sa->debug_init); 666 if (rc != 0) 667 goto fail_kvarg_debug_init; 668 669 sfc_log_init(sa, "entry"); 670 671 dev->data->mac_addrs = rte_zmalloc("sfc", ETHER_ADDR_LEN, 0); 672 if (dev->data->mac_addrs == NULL) { 673 rc = ENOMEM; 674 goto fail_mac_addrs; 675 } 676 677 sfc_adapter_lock_init(sa); 678 sfc_adapter_lock(sa); 679 680 sfc_log_init(sa, "attaching"); 681 rc = sfc_attach(sa); 682 if (rc != 0) 683 goto fail_attach; 684 685 encp = efx_nic_cfg_get(sa->nic); 686 687 /* 688 * The arguments are really reverse order in comparison to 689 * Linux kernel. Copy from NIC config to Ethernet device data. 690 */ 691 from = (const struct ether_addr *)(encp->enc_mac_addr); 692 ether_addr_copy(from, &dev->data->mac_addrs[0]); 693 694 dev->dev_ops = &sfc_eth_dev_ops; 695 dev->rx_pkt_burst = &sfc_recv_pkts; 696 dev->tx_pkt_burst = &sfc_xmit_pkts; 697 698 sfc_adapter_unlock(sa); 699 700 sfc_log_init(sa, "done"); 701 return 0; 702 703 fail_attach: 704 sfc_adapter_unlock(sa); 705 sfc_adapter_lock_fini(sa); 706 rte_free(dev->data->mac_addrs); 707 dev->data->mac_addrs = NULL; 708 709 fail_mac_addrs: 710 fail_kvarg_debug_init: 711 sfc_kvargs_cleanup(sa); 712 713 fail_kvargs_parse: 714 sfc_log_init(sa, "failed %d", rc); 715 SFC_ASSERT(rc > 0); 716 return -rc; 717 } 718 719 static int 720 sfc_eth_dev_uninit(struct rte_eth_dev *dev) 721 { 722 struct sfc_adapter *sa = dev->data->dev_private; 723 724 sfc_log_init(sa, "entry"); 725 726 sfc_adapter_lock(sa); 727 728 sfc_detach(sa); 729 730 rte_free(dev->data->mac_addrs); 731 dev->data->mac_addrs = NULL; 732 733 dev->dev_ops = NULL; 734 dev->rx_pkt_burst = NULL; 735 dev->tx_pkt_burst = NULL; 736 737 sfc_kvargs_cleanup(sa); 738 739 sfc_adapter_unlock(sa); 740 sfc_adapter_lock_fini(sa); 741 742 sfc_log_init(sa, "done"); 743 744 /* Required for logging, so cleanup last */ 745 sa->eth_dev = NULL; 746 return 0; 747 } 748 749 static const struct rte_pci_id pci_id_sfc_efx_map[] = { 750 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_FARMINGDALE) }, 751 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_GREENPORT) }, 752 { RTE_PCI_DEVICE(EFX_PCI_VENID_SFC, EFX_PCI_DEVID_MEDFORD) }, 753 { .vendor_id = 0 /* sentinel */ } 754 }; 755 756 static struct eth_driver sfc_efx_pmd = { 757 .pci_drv = { 758 .id_table = pci_id_sfc_efx_map, 759 .drv_flags = 760 RTE_PCI_DRV_INTR_LSC | 761 RTE_PCI_DRV_NEED_MAPPING, 762 .probe = rte_eth_dev_pci_probe, 763 .remove = rte_eth_dev_pci_remove, 764 }, 765 .eth_dev_init = sfc_eth_dev_init, 766 .eth_dev_uninit = sfc_eth_dev_uninit, 767 .dev_private_size = sizeof(struct sfc_adapter), 768 }; 769 770 RTE_PMD_REGISTER_PCI(net_sfc_efx, sfc_efx_pmd.pci_drv); 771 RTE_PMD_REGISTER_PCI_TABLE(net_sfc_efx, pci_id_sfc_efx_map); 772 RTE_PMD_REGISTER_PARAM_STRING(net_sfc_efx, 773 SFC_KVARG_PERF_PROFILE "=" SFC_KVARG_VALUES_PERF_PROFILE " " 774 SFC_KVARG_MCDI_LOGGING "=" SFC_KVARG_VALUES_BOOL " " 775 SFC_KVARG_DEBUG_INIT "=" SFC_KVARG_VALUES_BOOL); 776