1 /*- 2 * Copyright (c) 2010-2011 Solarflare Communications, Inc. 3 * All rights reserved. 4 * 5 * This software was developed in part by Philip Paeps under contract for 6 * 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 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/kernel.h> 35 #include <sys/bus.h> 36 #include <sys/rman.h> 37 #include <sys/lock.h> 38 #include <sys/module.h> 39 #include <sys/mutex.h> 40 #include <sys/smp.h> 41 #include <sys/socket.h> 42 #include <sys/taskqueue.h> 43 #include <sys/sockio.h> 44 #include <sys/sysctl.h> 45 #include <sys/syslog.h> 46 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcivar.h> 49 50 #include <net/ethernet.h> 51 #include <net/if.h> 52 #include <net/if_var.h> 53 #include <net/if_media.h> 54 #include <net/if_types.h> 55 56 #include "common/efx.h" 57 58 #include "sfxge.h" 59 #include "sfxge_rx.h" 60 #include "sfxge_version.h" 61 62 #define SFXGE_CAP (IFCAP_VLAN_MTU | \ 63 IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM | IFCAP_TSO | \ 64 IFCAP_JUMBO_MTU | IFCAP_LRO | \ 65 IFCAP_VLAN_HWTSO | IFCAP_LINKSTATE | IFCAP_HWSTATS) 66 #define SFXGE_CAP_ENABLE SFXGE_CAP 67 #define SFXGE_CAP_FIXED (IFCAP_VLAN_MTU | IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM | \ 68 IFCAP_JUMBO_MTU | IFCAP_LINKSTATE | IFCAP_HWSTATS) 69 70 MALLOC_DEFINE(M_SFXGE, "sfxge", "Solarflare 10GigE driver"); 71 72 73 SYSCTL_NODE(_hw, OID_AUTO, sfxge, CTLFLAG_RD, 0, 74 "SFXGE driver parameters"); 75 76 #define SFXGE_PARAM_RX_RING SFXGE_PARAM(rx_ring) 77 static int sfxge_rx_ring_entries = SFXGE_NDESCS; 78 TUNABLE_INT(SFXGE_PARAM_RX_RING, &sfxge_rx_ring_entries); 79 SYSCTL_INT(_hw_sfxge, OID_AUTO, rx_ring, CTLFLAG_RDTUN, 80 &sfxge_rx_ring_entries, 0, 81 "Maximum number of descriptors in a receive ring"); 82 83 #define SFXGE_PARAM_TX_RING SFXGE_PARAM(tx_ring) 84 static int sfxge_tx_ring_entries = SFXGE_NDESCS; 85 TUNABLE_INT(SFXGE_PARAM_TX_RING, &sfxge_tx_ring_entries); 86 SYSCTL_INT(_hw_sfxge, OID_AUTO, tx_ring, CTLFLAG_RDTUN, 87 &sfxge_tx_ring_entries, 0, 88 "Maximum number of descriptors in a transmit ring"); 89 90 91 static void 92 sfxge_reset(void *arg, int npending); 93 94 static int 95 sfxge_start(struct sfxge_softc *sc) 96 { 97 int rc; 98 99 SFXGE_ADAPTER_LOCK_ASSERT_OWNED(sc); 100 101 if (sc->init_state == SFXGE_STARTED) 102 return (0); 103 104 if (sc->init_state != SFXGE_REGISTERED) { 105 rc = EINVAL; 106 goto fail; 107 } 108 109 if ((rc = efx_nic_init(sc->enp)) != 0) 110 goto fail; 111 112 /* Start processing interrupts. */ 113 if ((rc = sfxge_intr_start(sc)) != 0) 114 goto fail2; 115 116 /* Start processing events. */ 117 if ((rc = sfxge_ev_start(sc)) != 0) 118 goto fail3; 119 120 /* Start the receiver side. */ 121 if ((rc = sfxge_rx_start(sc)) != 0) 122 goto fail4; 123 124 /* Start the transmitter side. */ 125 if ((rc = sfxge_tx_start(sc)) != 0) 126 goto fail5; 127 128 /* Fire up the port. */ 129 if ((rc = sfxge_port_start(sc)) != 0) 130 goto fail6; 131 132 sc->init_state = SFXGE_STARTED; 133 134 /* Tell the stack we're running. */ 135 sc->ifnet->if_drv_flags |= IFF_DRV_RUNNING; 136 sc->ifnet->if_drv_flags &= ~IFF_DRV_OACTIVE; 137 138 return (0); 139 140 fail6: 141 sfxge_tx_stop(sc); 142 143 fail5: 144 sfxge_rx_stop(sc); 145 146 fail4: 147 sfxge_ev_stop(sc); 148 149 fail3: 150 sfxge_intr_stop(sc); 151 152 fail2: 153 efx_nic_fini(sc->enp); 154 155 fail: 156 device_printf(sc->dev, "sfxge_start: %d\n", rc); 157 158 return (rc); 159 } 160 161 static void 162 sfxge_if_init(void *arg) 163 { 164 struct sfxge_softc *sc; 165 166 sc = (struct sfxge_softc *)arg; 167 168 SFXGE_ADAPTER_LOCK(sc); 169 (void)sfxge_start(sc); 170 SFXGE_ADAPTER_UNLOCK(sc); 171 } 172 173 static void 174 sfxge_stop(struct sfxge_softc *sc) 175 { 176 SFXGE_ADAPTER_LOCK_ASSERT_OWNED(sc); 177 178 if (sc->init_state != SFXGE_STARTED) 179 return; 180 181 sc->init_state = SFXGE_REGISTERED; 182 183 /* Stop the port. */ 184 sfxge_port_stop(sc); 185 186 /* Stop the transmitter. */ 187 sfxge_tx_stop(sc); 188 189 /* Stop the receiver. */ 190 sfxge_rx_stop(sc); 191 192 /* Stop processing events. */ 193 sfxge_ev_stop(sc); 194 195 /* Stop processing interrupts. */ 196 sfxge_intr_stop(sc); 197 198 efx_nic_fini(sc->enp); 199 200 sc->ifnet->if_drv_flags &= ~IFF_DRV_RUNNING; 201 } 202 203 static int 204 sfxge_if_ioctl(struct ifnet *ifp, unsigned long command, caddr_t data) 205 { 206 struct sfxge_softc *sc; 207 struct ifreq *ifr; 208 int error; 209 210 ifr = (struct ifreq *)data; 211 sc = ifp->if_softc; 212 error = 0; 213 214 switch (command) { 215 case SIOCSIFFLAGS: 216 SFXGE_ADAPTER_LOCK(sc); 217 if (ifp->if_flags & IFF_UP) { 218 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 219 if ((ifp->if_flags ^ sc->if_flags) & 220 (IFF_PROMISC | IFF_ALLMULTI)) { 221 sfxge_mac_filter_set(sc); 222 } 223 } else 224 sfxge_start(sc); 225 } else 226 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 227 sfxge_stop(sc); 228 sc->if_flags = ifp->if_flags; 229 SFXGE_ADAPTER_UNLOCK(sc); 230 break; 231 case SIOCSIFMTU: 232 if (ifr->ifr_mtu == ifp->if_mtu) { 233 /* Nothing to do */ 234 error = 0; 235 } else if (ifr->ifr_mtu > SFXGE_MAX_MTU) { 236 error = EINVAL; 237 } else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 238 ifp->if_mtu = ifr->ifr_mtu; 239 error = 0; 240 } else { 241 /* Restart required */ 242 SFXGE_ADAPTER_LOCK(sc); 243 sfxge_stop(sc); 244 ifp->if_mtu = ifr->ifr_mtu; 245 error = sfxge_start(sc); 246 SFXGE_ADAPTER_UNLOCK(sc); 247 if (error != 0) { 248 ifp->if_flags &= ~IFF_UP; 249 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 250 if_down(ifp); 251 } 252 } 253 break; 254 case SIOCADDMULTI: 255 case SIOCDELMULTI: 256 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 257 sfxge_mac_filter_set(sc); 258 break; 259 case SIOCSIFCAP: 260 SFXGE_ADAPTER_LOCK(sc); 261 262 /* 263 * The networking core already rejects attempts to 264 * enable capabilities we don't have. We still have 265 * to reject attempts to disable capabilities that we 266 * can't (yet) disable. 267 */ 268 if (~ifr->ifr_reqcap & SFXGE_CAP_FIXED) { 269 error = EINVAL; 270 SFXGE_ADAPTER_UNLOCK(sc); 271 break; 272 } 273 274 ifp->if_capenable = ifr->ifr_reqcap; 275 if (ifp->if_capenable & IFCAP_TXCSUM) 276 ifp->if_hwassist |= (CSUM_IP | CSUM_TCP | CSUM_UDP); 277 else 278 ifp->if_hwassist &= ~(CSUM_IP | CSUM_TCP | CSUM_UDP); 279 if (ifp->if_capenable & IFCAP_TSO) 280 ifp->if_hwassist |= CSUM_TSO; 281 else 282 ifp->if_hwassist &= ~CSUM_TSO; 283 284 SFXGE_ADAPTER_UNLOCK(sc); 285 break; 286 case SIOCSIFMEDIA: 287 case SIOCGIFMEDIA: 288 error = ifmedia_ioctl(ifp, ifr, &sc->media, command); 289 break; 290 default: 291 error = ether_ioctl(ifp, command, data); 292 } 293 294 return (error); 295 } 296 297 static void 298 sfxge_ifnet_fini(struct ifnet *ifp) 299 { 300 struct sfxge_softc *sc = ifp->if_softc; 301 302 SFXGE_ADAPTER_LOCK(sc); 303 sfxge_stop(sc); 304 SFXGE_ADAPTER_UNLOCK(sc); 305 306 ifmedia_removeall(&sc->media); 307 ether_ifdetach(ifp); 308 if_free(ifp); 309 } 310 311 static int 312 sfxge_ifnet_init(struct ifnet *ifp, struct sfxge_softc *sc) 313 { 314 const efx_nic_cfg_t *encp = efx_nic_cfg_get(sc->enp); 315 device_t dev; 316 int rc; 317 318 dev = sc->dev; 319 sc->ifnet = ifp; 320 321 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 322 ifp->if_init = sfxge_if_init; 323 ifp->if_softc = sc; 324 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 325 ifp->if_ioctl = sfxge_if_ioctl; 326 327 ifp->if_capabilities = SFXGE_CAP; 328 ifp->if_capenable = SFXGE_CAP_ENABLE; 329 ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_IP | CSUM_TSO; 330 331 ether_ifattach(ifp, encp->enc_mac_addr); 332 333 #ifdef SFXGE_HAVE_MQ 334 ifp->if_transmit = sfxge_if_transmit; 335 ifp->if_qflush = sfxge_if_qflush; 336 #else 337 ifp->if_start = sfxge_if_start; 338 IFQ_SET_MAXLEN(&ifp->if_snd, sc->txq_entries - 1); 339 ifp->if_snd.ifq_drv_maxlen = sc->txq_entries - 1; 340 IFQ_SET_READY(&ifp->if_snd); 341 342 snprintf(sc->tx_lock_name, sizeof(sc->tx_lock_name), 343 "%s:tx", device_get_nameunit(sc->dev)); 344 mtx_init(&sc->tx_lock, sc->tx_lock_name, NULL, MTX_DEF); 345 #endif 346 347 ifp->if_get_counter = sfxge_get_counter; 348 349 if ((rc = sfxge_port_ifmedia_init(sc)) != 0) 350 goto fail; 351 352 return (0); 353 354 fail: 355 ether_ifdetach(sc->ifnet); 356 return (rc); 357 } 358 359 void 360 sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n, uint32_t *idp) 361 { 362 KASSERT(sc->buffer_table_next + n <= 363 efx_nic_cfg_get(sc->enp)->enc_buftbl_limit, 364 ("buffer table full")); 365 366 *idp = sc->buffer_table_next; 367 sc->buffer_table_next += n; 368 } 369 370 static int 371 sfxge_bar_init(struct sfxge_softc *sc) 372 { 373 efsys_bar_t *esbp = &sc->bar; 374 375 esbp->esb_rid = PCIR_BAR(EFX_MEM_BAR); 376 if ((esbp->esb_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY, 377 &esbp->esb_rid, RF_ACTIVE)) == NULL) { 378 device_printf(sc->dev, "Cannot allocate BAR region %d\n", 379 EFX_MEM_BAR); 380 return (ENXIO); 381 } 382 esbp->esb_tag = rman_get_bustag(esbp->esb_res); 383 esbp->esb_handle = rman_get_bushandle(esbp->esb_res); 384 385 SFXGE_BAR_LOCK_INIT(esbp, device_get_nameunit(sc->dev)); 386 387 return (0); 388 } 389 390 static void 391 sfxge_bar_fini(struct sfxge_softc *sc) 392 { 393 efsys_bar_t *esbp = &sc->bar; 394 395 bus_release_resource(sc->dev, SYS_RES_MEMORY, esbp->esb_rid, 396 esbp->esb_res); 397 SFXGE_BAR_LOCK_DESTROY(esbp); 398 } 399 400 static int 401 sfxge_create(struct sfxge_softc *sc) 402 { 403 device_t dev; 404 efx_nic_t *enp; 405 int error; 406 char rss_param_name[sizeof(SFXGE_PARAM(%d.max_rss_channels))]; 407 408 dev = sc->dev; 409 410 SFXGE_ADAPTER_LOCK_INIT(sc, device_get_nameunit(sc->dev)); 411 412 sc->max_rss_channels = 0; 413 snprintf(rss_param_name, sizeof(rss_param_name), 414 SFXGE_PARAM(%d.max_rss_channels), 415 (int)device_get_unit(dev)); 416 TUNABLE_INT_FETCH(rss_param_name, &sc->max_rss_channels); 417 418 sc->stats_node = SYSCTL_ADD_NODE( 419 device_get_sysctl_ctx(dev), 420 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 421 OID_AUTO, "stats", CTLFLAG_RD, NULL, "Statistics"); 422 if (sc->stats_node == NULL) { 423 error = ENOMEM; 424 goto fail; 425 } 426 427 TASK_INIT(&sc->task_reset, 0, sfxge_reset, sc); 428 429 (void) pci_enable_busmaster(dev); 430 431 /* Initialize DMA mappings. */ 432 if ((error = sfxge_dma_init(sc)) != 0) 433 goto fail; 434 435 /* Map the device registers. */ 436 if ((error = sfxge_bar_init(sc)) != 0) 437 goto fail; 438 439 error = efx_family(pci_get_vendor(dev), pci_get_device(dev), 440 &sc->family); 441 KASSERT(error == 0, ("Family should be filtered by sfxge_probe()")); 442 443 /* Create the common code nic object. */ 444 SFXGE_EFSYS_LOCK_INIT(&sc->enp_lock, 445 device_get_nameunit(sc->dev), "nic"); 446 if ((error = efx_nic_create(sc->family, (efsys_identifier_t *)sc, 447 &sc->bar, &sc->enp_lock, &enp)) != 0) 448 goto fail3; 449 sc->enp = enp; 450 451 if (!ISP2(sfxge_rx_ring_entries) || 452 !(sfxge_rx_ring_entries & EFX_RXQ_NDESCS_MASK)) { 453 log(LOG_ERR, "%s=%d must be power of 2 from %u to %u", 454 SFXGE_PARAM_RX_RING, sfxge_rx_ring_entries, 455 EFX_RXQ_MINNDESCS, EFX_RXQ_MAXNDESCS); 456 error = EINVAL; 457 goto fail_rx_ring_entries; 458 } 459 sc->rxq_entries = sfxge_rx_ring_entries; 460 461 if (!ISP2(sfxge_tx_ring_entries) || 462 !(sfxge_tx_ring_entries & EFX_TXQ_NDESCS_MASK)) { 463 log(LOG_ERR, "%s=%d must be power of 2 from %u to %u", 464 SFXGE_PARAM_TX_RING, sfxge_tx_ring_entries, 465 EFX_TXQ_MINNDESCS, EFX_TXQ_MAXNDESCS); 466 error = EINVAL; 467 goto fail_tx_ring_entries; 468 } 469 sc->txq_entries = sfxge_tx_ring_entries; 470 471 /* Initialize MCDI to talk to the microcontroller. */ 472 if ((error = sfxge_mcdi_init(sc)) != 0) 473 goto fail4; 474 475 /* Probe the NIC and build the configuration data area. */ 476 if ((error = efx_nic_probe(enp)) != 0) 477 goto fail5; 478 479 SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev), 480 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 481 OID_AUTO, "version", CTLFLAG_RD, 482 SFXGE_VERSION_STRING, 0, 483 "Driver version"); 484 485 /* Initialize the NVRAM. */ 486 if ((error = efx_nvram_init(enp)) != 0) 487 goto fail6; 488 489 /* Initialize the VPD. */ 490 if ((error = efx_vpd_init(enp)) != 0) 491 goto fail7; 492 493 /* Reset the NIC. */ 494 if ((error = efx_nic_reset(enp)) != 0) 495 goto fail8; 496 497 /* Initialize buffer table allocation. */ 498 sc->buffer_table_next = 0; 499 500 /* Set up interrupts. */ 501 if ((error = sfxge_intr_init(sc)) != 0) 502 goto fail8; 503 504 /* Initialize event processing state. */ 505 if ((error = sfxge_ev_init(sc)) != 0) 506 goto fail11; 507 508 /* Initialize receive state. */ 509 if ((error = sfxge_rx_init(sc)) != 0) 510 goto fail12; 511 512 /* Initialize transmit state. */ 513 if ((error = sfxge_tx_init(sc)) != 0) 514 goto fail13; 515 516 /* Initialize port state. */ 517 if ((error = sfxge_port_init(sc)) != 0) 518 goto fail14; 519 520 sc->init_state = SFXGE_INITIALIZED; 521 522 return (0); 523 524 fail14: 525 sfxge_tx_fini(sc); 526 527 fail13: 528 sfxge_rx_fini(sc); 529 530 fail12: 531 sfxge_ev_fini(sc); 532 533 fail11: 534 sfxge_intr_fini(sc); 535 536 fail8: 537 efx_vpd_fini(enp); 538 539 fail7: 540 efx_nvram_fini(enp); 541 542 fail6: 543 efx_nic_unprobe(enp); 544 545 fail5: 546 sfxge_mcdi_fini(sc); 547 548 fail4: 549 fail_tx_ring_entries: 550 fail_rx_ring_entries: 551 sc->enp = NULL; 552 efx_nic_destroy(enp); 553 SFXGE_EFSYS_LOCK_DESTROY(&sc->enp_lock); 554 555 fail3: 556 sfxge_bar_fini(sc); 557 (void) pci_disable_busmaster(sc->dev); 558 559 fail: 560 sc->dev = NULL; 561 SFXGE_ADAPTER_LOCK_DESTROY(sc); 562 return (error); 563 } 564 565 static void 566 sfxge_destroy(struct sfxge_softc *sc) 567 { 568 efx_nic_t *enp; 569 570 /* Clean up port state. */ 571 sfxge_port_fini(sc); 572 573 /* Clean up transmit state. */ 574 sfxge_tx_fini(sc); 575 576 /* Clean up receive state. */ 577 sfxge_rx_fini(sc); 578 579 /* Clean up event processing state. */ 580 sfxge_ev_fini(sc); 581 582 /* Clean up interrupts. */ 583 sfxge_intr_fini(sc); 584 585 /* Tear down common code subsystems. */ 586 efx_nic_reset(sc->enp); 587 efx_vpd_fini(sc->enp); 588 efx_nvram_fini(sc->enp); 589 efx_nic_unprobe(sc->enp); 590 591 /* Tear down MCDI. */ 592 sfxge_mcdi_fini(sc); 593 594 /* Destroy common code context. */ 595 enp = sc->enp; 596 sc->enp = NULL; 597 efx_nic_destroy(enp); 598 599 /* Free DMA memory. */ 600 sfxge_dma_fini(sc); 601 602 /* Free mapped BARs. */ 603 sfxge_bar_fini(sc); 604 605 (void) pci_disable_busmaster(sc->dev); 606 607 taskqueue_drain(taskqueue_thread, &sc->task_reset); 608 609 /* Destroy the softc lock. */ 610 SFXGE_ADAPTER_LOCK_DESTROY(sc); 611 } 612 613 static int 614 sfxge_vpd_handler(SYSCTL_HANDLER_ARGS) 615 { 616 struct sfxge_softc *sc = arg1; 617 efx_vpd_value_t value; 618 int rc; 619 620 value.evv_tag = arg2 >> 16; 621 value.evv_keyword = arg2 & 0xffff; 622 if ((rc = efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value)) 623 != 0) 624 return (rc); 625 626 return (SYSCTL_OUT(req, value.evv_value, value.evv_length)); 627 } 628 629 static void 630 sfxge_vpd_try_add(struct sfxge_softc *sc, struct sysctl_oid_list *list, 631 efx_vpd_tag_t tag, const char *keyword) 632 { 633 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev); 634 efx_vpd_value_t value; 635 636 /* Check whether VPD tag/keyword is present */ 637 value.evv_tag = tag; 638 value.evv_keyword = EFX_VPD_KEYWORD(keyword[0], keyword[1]); 639 if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) != 0) 640 return; 641 642 SYSCTL_ADD_PROC( 643 ctx, list, OID_AUTO, keyword, CTLTYPE_STRING|CTLFLAG_RD, 644 sc, tag << 16 | EFX_VPD_KEYWORD(keyword[0], keyword[1]), 645 sfxge_vpd_handler, "A", ""); 646 } 647 648 static int 649 sfxge_vpd_init(struct sfxge_softc *sc) 650 { 651 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev); 652 struct sysctl_oid *vpd_node; 653 struct sysctl_oid_list *vpd_list; 654 char keyword[3]; 655 efx_vpd_value_t value; 656 int rc; 657 658 if ((rc = efx_vpd_size(sc->enp, &sc->vpd_size)) != 0) 659 goto fail; 660 sc->vpd_data = malloc(sc->vpd_size, M_SFXGE, M_WAITOK); 661 if ((rc = efx_vpd_read(sc->enp, sc->vpd_data, sc->vpd_size)) != 0) 662 goto fail2; 663 664 /* Copy ID (product name) into device description, and log it. */ 665 value.evv_tag = EFX_VPD_ID; 666 if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) == 0) { 667 value.evv_value[value.evv_length] = 0; 668 device_set_desc_copy(sc->dev, value.evv_value); 669 device_printf(sc->dev, "%s\n", value.evv_value); 670 } 671 672 vpd_node = SYSCTL_ADD_NODE( 673 ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)), 674 OID_AUTO, "vpd", CTLFLAG_RD, NULL, "Vital Product Data"); 675 vpd_list = SYSCTL_CHILDREN(vpd_node); 676 677 /* Add sysctls for all expected and any vendor-defined keywords. */ 678 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "PN"); 679 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "EC"); 680 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "SN"); 681 keyword[0] = 'V'; 682 keyword[2] = 0; 683 for (keyword[1] = '0'; keyword[1] <= '9'; keyword[1]++) 684 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword); 685 for (keyword[1] = 'A'; keyword[1] <= 'Z'; keyword[1]++) 686 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword); 687 688 return (0); 689 690 fail2: 691 free(sc->vpd_data, M_SFXGE); 692 fail: 693 return (rc); 694 } 695 696 static void 697 sfxge_vpd_fini(struct sfxge_softc *sc) 698 { 699 free(sc->vpd_data, M_SFXGE); 700 } 701 702 static void 703 sfxge_reset(void *arg, int npending) 704 { 705 struct sfxge_softc *sc; 706 int rc; 707 708 (void)npending; 709 710 sc = (struct sfxge_softc *)arg; 711 712 SFXGE_ADAPTER_LOCK(sc); 713 714 if (sc->init_state != SFXGE_STARTED) 715 goto done; 716 717 sfxge_stop(sc); 718 efx_nic_reset(sc->enp); 719 if ((rc = sfxge_start(sc)) != 0) 720 device_printf(sc->dev, 721 "reset failed (%d); interface is now stopped\n", 722 rc); 723 724 done: 725 SFXGE_ADAPTER_UNLOCK(sc); 726 } 727 728 void 729 sfxge_schedule_reset(struct sfxge_softc *sc) 730 { 731 taskqueue_enqueue(taskqueue_thread, &sc->task_reset); 732 } 733 734 static int 735 sfxge_attach(device_t dev) 736 { 737 struct sfxge_softc *sc; 738 struct ifnet *ifp; 739 int error; 740 741 sc = device_get_softc(dev); 742 sc->dev = dev; 743 744 /* Allocate ifnet. */ 745 ifp = if_alloc(IFT_ETHER); 746 if (ifp == NULL) { 747 device_printf(dev, "Couldn't allocate ifnet\n"); 748 error = ENOMEM; 749 goto fail; 750 } 751 sc->ifnet = ifp; 752 753 /* Initialize hardware. */ 754 if ((error = sfxge_create(sc)) != 0) 755 goto fail2; 756 757 /* Create the ifnet for the port. */ 758 if ((error = sfxge_ifnet_init(ifp, sc)) != 0) 759 goto fail3; 760 761 if ((error = sfxge_vpd_init(sc)) != 0) 762 goto fail4; 763 764 sc->init_state = SFXGE_REGISTERED; 765 766 return (0); 767 768 fail4: 769 sfxge_ifnet_fini(ifp); 770 fail3: 771 sfxge_destroy(sc); 772 773 fail2: 774 if_free(sc->ifnet); 775 776 fail: 777 return (error); 778 } 779 780 static int 781 sfxge_detach(device_t dev) 782 { 783 struct sfxge_softc *sc; 784 785 sc = device_get_softc(dev); 786 787 sfxge_vpd_fini(sc); 788 789 /* Destroy the ifnet. */ 790 sfxge_ifnet_fini(sc->ifnet); 791 792 /* Tear down hardware. */ 793 sfxge_destroy(sc); 794 795 return (0); 796 } 797 798 static int 799 sfxge_probe(device_t dev) 800 { 801 uint16_t pci_vendor_id; 802 uint16_t pci_device_id; 803 efx_family_t family; 804 int rc; 805 806 pci_vendor_id = pci_get_vendor(dev); 807 pci_device_id = pci_get_device(dev); 808 809 rc = efx_family(pci_vendor_id, pci_device_id, &family); 810 if (rc != 0) 811 return (ENXIO); 812 813 KASSERT(family == EFX_FAMILY_SIENA, ("impossible controller family")); 814 device_set_desc(dev, "Solarflare SFC9000 family"); 815 return (0); 816 } 817 818 static device_method_t sfxge_methods[] = { 819 DEVMETHOD(device_probe, sfxge_probe), 820 DEVMETHOD(device_attach, sfxge_attach), 821 DEVMETHOD(device_detach, sfxge_detach), 822 823 DEVMETHOD_END 824 }; 825 826 static devclass_t sfxge_devclass; 827 828 static driver_t sfxge_driver = { 829 "sfxge", 830 sfxge_methods, 831 sizeof(struct sfxge_softc) 832 }; 833 834 DRIVER_MODULE(sfxge, pci, sfxge_driver, sfxge_devclass, 0, 0); 835