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sys/dev/sfxge/sfxge_port.c
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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: releng/9.2/sys/dev/sfxge/sfxge_port.c 231156 2012-02-07 19:53:02Z jhb $"); 32 33 #include <sys/types.h> 34 #include <sys/limits.h> 35 #include <net/ethernet.h> 36 #include <net/if_dl.h> 37 38 #include "common/efx.h" 39 40 #include "sfxge.h" 41 42 static int 43 sfxge_mac_stat_update(struct sfxge_softc *sc) 44 { 45 struct sfxge_port *port = &sc->port; 46 efsys_mem_t *esmp = &(port->mac_stats.dma_buf); 47 clock_t now; 48 unsigned int count; 49 int rc; 50 51 mtx_lock(&port->lock); 52 53 if (port->init_state != SFXGE_PORT_STARTED) { 54 rc = 0; 55 goto out; 56 } 57 58 now = ticks; 59 if (now - port->mac_stats.update_time < hz) { 60 rc = 0; 61 goto out; 62 } 63 64 port->mac_stats.update_time = now; 65 66 /* If we're unlucky enough to read statistics wduring the DMA, wait 67 * up to 10ms for it to finish (typically takes <500us) */ 68 for (count = 0; count < 100; ++count) { 69 EFSYS_PROBE1(wait, unsigned int, count); 70 71 /* Synchronize the DMA memory for reading */ 72 bus_dmamap_sync(esmp->esm_tag, esmp->esm_map, 73 BUS_DMASYNC_POSTREAD); 74 75 /* Try to update the cached counters */ 76 if ((rc = efx_mac_stats_update(sc->enp, esmp, 77 port->mac_stats.decode_buf, NULL)) != EAGAIN) 78 goto out; 79 80 DELAY(100); 81 } 82 83 rc = ETIMEDOUT; 84 out: 85 mtx_unlock(&port->lock); 86 return rc; 87 } 88 89 static int 90 sfxge_mac_stat_handler(SYSCTL_HANDLER_ARGS) 91 { 92 struct sfxge_softc *sc = arg1; 93 unsigned int id = arg2; 94 int rc; 95 96 if ((rc = sfxge_mac_stat_update(sc)) != 0) 97 return rc; 98 99 return SYSCTL_OUT(req, 100 (uint64_t *)sc->port.mac_stats.decode_buf + id, 101 sizeof(uint64_t)); 102 } 103 104 static void 105 sfxge_mac_stat_init(struct sfxge_softc *sc) 106 { 107 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev); 108 struct sysctl_oid_list *stat_list; 109 unsigned int id; 110 const char *name; 111 112 stat_list = SYSCTL_CHILDREN(sc->stats_node); 113 114 /* Initialise the named stats */ 115 for (id = 0; id < EFX_MAC_NSTATS; id++) { 116 name = efx_mac_stat_name(sc->enp, id); 117 SYSCTL_ADD_PROC( 118 ctx, stat_list, 119 OID_AUTO, name, CTLTYPE_U64|CTLFLAG_RD, 120 sc, id, sfxge_mac_stat_handler, "Q", 121 ""); 122 } 123 } 124 125 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS 126 127 static unsigned int 128 sfxge_port_wanted_fc(struct sfxge_softc *sc) 129 { 130 struct ifmedia_entry *ifm = sc->media.ifm_cur; 131 132 if (ifm->ifm_media == (IFM_ETHER | IFM_AUTO)) 133 return EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE; 134 return ((ifm->ifm_media & IFM_ETH_RXPAUSE) ? EFX_FCNTL_RESPOND : 0) | 135 ((ifm->ifm_media & IFM_ETH_TXPAUSE) ? EFX_FCNTL_GENERATE : 0); 136 } 137 138 static unsigned int 139 sfxge_port_link_fc_ifm(struct sfxge_softc *sc) 140 { 141 unsigned int wanted_fc, link_fc; 142 143 efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc); 144 return ((link_fc & EFX_FCNTL_RESPOND) ? IFM_ETH_RXPAUSE : 0) | 145 ((link_fc & EFX_FCNTL_GENERATE) ? IFM_ETH_TXPAUSE : 0); 146 } 147 148 #else /* !SFXGE_HAVE_PAUSE_MEDIAOPTS */ 149 150 static unsigned int 151 sfxge_port_wanted_fc(struct sfxge_softc *sc) 152 { 153 return sc->port.wanted_fc; 154 } 155 156 static unsigned int 157 sfxge_port_link_fc_ifm(struct sfxge_softc *sc) 158 { 159 return 0; 160 } 161 162 static int 163 sfxge_port_wanted_fc_handler(SYSCTL_HANDLER_ARGS) 164 { 165 struct sfxge_softc *sc; 166 struct sfxge_port *port; 167 unsigned int fcntl; 168 int error; 169 170 sc = arg1; 171 port = &sc->port; 172 173 mtx_lock(&port->lock); 174 175 if (req->newptr) { 176 if ((error = SYSCTL_IN(req, &fcntl, sizeof(fcntl))) != 0) 177 goto out; 178 179 if (port->wanted_fc == fcntl) 180 goto out; 181 182 port->wanted_fc = fcntl; 183 184 if (port->init_state != SFXGE_PORT_STARTED) 185 goto out; 186 187 error = efx_mac_fcntl_set(sc->enp, port->wanted_fc, B_TRUE); 188 } else { 189 error = SYSCTL_OUT(req, &port->wanted_fc, 190 sizeof(port->wanted_fc)); 191 } 192 193 out: 194 mtx_unlock(&port->lock); 195 196 return (error); 197 } 198 199 static int 200 sfxge_port_link_fc_handler(SYSCTL_HANDLER_ARGS) 201 { 202 struct sfxge_softc *sc; 203 struct sfxge_port *port; 204 unsigned int wanted_fc, link_fc; 205 int error; 206 207 sc = arg1; 208 port = &sc->port; 209 210 mtx_lock(&port->lock); 211 if (port->init_state == SFXGE_PORT_STARTED && SFXGE_LINK_UP(sc)) 212 efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc); 213 else 214 link_fc = 0; 215 error = SYSCTL_OUT(req, &link_fc, sizeof(link_fc)); 216 mtx_unlock(&port->lock); 217 218 return (error); 219 } 220 221 #endif /* SFXGE_HAVE_PAUSE_MEDIAOPTS */ 222 223 static const u_long sfxge_link_baudrate[EFX_LINK_NMODES] = { 224 [EFX_LINK_10HDX] = IF_Mbps(10), 225 [EFX_LINK_10FDX] = IF_Mbps(10), 226 [EFX_LINK_100HDX] = IF_Mbps(100), 227 [EFX_LINK_100FDX] = IF_Mbps(100), 228 [EFX_LINK_1000HDX] = IF_Gbps(1), 229 [EFX_LINK_1000FDX] = IF_Gbps(1), 230 [EFX_LINK_10000FDX] = MIN(IF_Gbps(10ULL), ULONG_MAX), 231 }; 232 233 void 234 sfxge_mac_link_update(struct sfxge_softc *sc, efx_link_mode_t mode) 235 { 236 struct sfxge_port *port; 237 int link_state; 238 239 port = &sc->port; 240 241 if (port->link_mode == mode) 242 return; 243 244 port->link_mode = mode; 245 246 /* Push link state update to the OS */ 247 link_state = (port->link_mode != EFX_LINK_DOWN ? 248 LINK_STATE_UP : LINK_STATE_DOWN); 249 sc->ifnet->if_baudrate = sfxge_link_baudrate[port->link_mode]; 250 if_link_state_change(sc->ifnet, link_state); 251 } 252 253 static void 254 sfxge_mac_poll_work(void *arg, int npending) 255 { 256 struct sfxge_softc *sc; 257 efx_nic_t *enp; 258 struct sfxge_port *port; 259 efx_link_mode_t mode; 260 261 sc = (struct sfxge_softc *)arg; 262 enp = sc->enp; 263 port = &sc->port; 264 265 mtx_lock(&port->lock); 266 267 if (port->init_state != SFXGE_PORT_STARTED) 268 goto done; 269 270 /* This may sleep waiting for MCDI completion */ 271 (void)efx_port_poll(enp, &mode); 272 sfxge_mac_link_update(sc, mode); 273 274 done: 275 mtx_unlock(&port->lock); 276 } 277 278 static int 279 sfxge_mac_filter_set_locked(struct sfxge_softc *sc) 280 { 281 unsigned int bucket[EFX_MAC_HASH_BITS]; 282 struct ifnet *ifp = sc->ifnet; 283 struct ifmultiaddr *ifma; 284 struct sockaddr_dl *sa; 285 efx_nic_t *enp = sc->enp; 286 unsigned int index; 287 int rc; 288 289 /* Set promisc-unicast and broadcast filter bits */ 290 if ((rc = efx_mac_filter_set(enp, !!(ifp->if_flags & IFF_PROMISC), 291 B_TRUE)) != 0) 292 return rc; 293 294 /* Set multicast hash filter */ 295 if (ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) { 296 for (index = 0; index < EFX_MAC_HASH_BITS; index++) 297 bucket[index] = 1; 298 } else { 299 /* Broadcast frames also go through the multicast 300 * filter, and the broadcast address hashes to 301 * 0xff. */ 302 bucket[0xff] = 1; 303 304 if_maddr_rlock(ifp); 305 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 306 if (ifma->ifma_addr->sa_family == AF_LINK) { 307 sa = (struct sockaddr_dl *)ifma->ifma_addr; 308 index = ether_crc32_le(LLADDR(sa), 6) & 0xff; 309 bucket[index] = 1; 310 } 311 } 312 if_maddr_runlock(ifp); 313 } 314 return efx_mac_hash_set(enp, bucket); 315 } 316 317 int 318 sfxge_mac_filter_set(struct sfxge_softc *sc) 319 { 320 struct sfxge_port *port = &sc->port; 321 int rc; 322 323 KASSERT(port->init_state == SFXGE_PORT_STARTED, ("port not started")); 324 325 mtx_lock(&port->lock); 326 rc = sfxge_mac_filter_set_locked(sc); 327 mtx_unlock(&port->lock); 328 return rc; 329 } 330 331 void 332 sfxge_port_stop(struct sfxge_softc *sc) 333 { 334 struct sfxge_port *port; 335 efx_nic_t *enp; 336 337 port = &sc->port; 338 enp = sc->enp; 339 340 mtx_lock(&port->lock); 341 342 KASSERT(port->init_state == SFXGE_PORT_STARTED, 343 ("port not started")); 344 345 port->init_state = SFXGE_PORT_INITIALIZED; 346 347 port->mac_stats.update_time = 0; 348 349 /* This may call MCDI */ 350 (void)efx_mac_drain(enp, B_TRUE); 351 352 (void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 0, B_FALSE); 353 354 port->link_mode = EFX_LINK_UNKNOWN; 355 356 /* Destroy the common code port object. */ 357 efx_port_fini(sc->enp); 358 359 mtx_unlock(&port->lock); 360 } 361 362 int 363 sfxge_port_start(struct sfxge_softc *sc) 364 { 365 uint8_t mac_addr[ETHER_ADDR_LEN]; 366 struct ifnet *ifp = sc->ifnet; 367 struct sfxge_port *port; 368 efx_nic_t *enp; 369 size_t pdu; 370 int rc; 371 372 port = &sc->port; 373 enp = sc->enp; 374 375 mtx_lock(&port->lock); 376 377 KASSERT(port->init_state == SFXGE_PORT_INITIALIZED, 378 ("port not initialized")); 379 380 /* Initialize the port object in the common code. */ 381 if ((rc = efx_port_init(sc->enp)) != 0) 382 goto fail; 383 384 /* Set the SDU */ 385 pdu = EFX_MAC_PDU(ifp->if_mtu); 386 if ((rc = efx_mac_pdu_set(enp, pdu)) != 0) 387 goto fail2; 388 389 if ((rc = efx_mac_fcntl_set(enp, sfxge_port_wanted_fc(sc), B_TRUE)) 390 != 0) 391 goto fail2; 392 393 /* Set the unicast address */ 394 if_addr_rlock(ifp); 395 bcopy(LLADDR((struct sockaddr_dl *)ifp->if_addr->ifa_addr), 396 mac_addr, sizeof(mac_addr)); 397 if_addr_runlock(ifp); 398 if ((rc = efx_mac_addr_set(enp, mac_addr)) != 0) 399 goto fail; 400 401 sfxge_mac_filter_set_locked(sc); 402 403 /* Update MAC stats by DMA every second */ 404 if ((rc = efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 405 1000, B_FALSE)) != 0) 406 goto fail2; 407 408 if ((rc = efx_mac_drain(enp, B_FALSE)) != 0) 409 goto fail3; 410 411 if ((rc = efx_phy_adv_cap_set(sc->enp, sc->media.ifm_cur->ifm_data)) 412 != 0) 413 goto fail4; 414 415 port->init_state = SFXGE_PORT_STARTED; 416 417 /* Single poll in case there were missing initial events */ 418 mtx_unlock(&port->lock); 419 sfxge_mac_poll_work(sc, 0); 420 421 return (0); 422 423 fail4: 424 (void)efx_mac_drain(enp, B_TRUE); 425 fail3: 426 (void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 427 0, B_FALSE); 428 fail2: 429 efx_port_fini(sc->enp); 430 fail: 431 mtx_unlock(&port->lock); 432 433 return (rc); 434 } 435 436 static int 437 sfxge_phy_stat_update(struct sfxge_softc *sc) 438 { 439 struct sfxge_port *port = &sc->port; 440 efsys_mem_t *esmp = &port->phy_stats.dma_buf; 441 clock_t now; 442 unsigned int count; 443 int rc; 444 445 mtx_lock(&port->lock); 446 447 if (port->init_state != SFXGE_PORT_STARTED) { 448 rc = 0; 449 goto out; 450 } 451 452 now = ticks; 453 if (now - port->phy_stats.update_time < hz) { 454 rc = 0; 455 goto out; 456 } 457 458 port->phy_stats.update_time = now; 459 460 /* If we're unlucky enough to read statistics wduring the DMA, wait 461 * up to 10ms for it to finish (typically takes <500us) */ 462 for (count = 0; count < 100; ++count) { 463 EFSYS_PROBE1(wait, unsigned int, count); 464 465 /* Synchronize the DMA memory for reading */ 466 bus_dmamap_sync(esmp->esm_tag, esmp->esm_map, 467 BUS_DMASYNC_POSTREAD); 468 469 /* Try to update the cached counters */ 470 if ((rc = efx_phy_stats_update(sc->enp, esmp, 471 port->phy_stats.decode_buf)) != EAGAIN) 472 goto out; 473 474 DELAY(100); 475 } 476 477 rc = ETIMEDOUT; 478 out: 479 mtx_unlock(&port->lock); 480 return rc; 481 } 482 483 static int 484 sfxge_phy_stat_handler(SYSCTL_HANDLER_ARGS) 485 { 486 struct sfxge_softc *sc = arg1; 487 unsigned int id = arg2; 488 int rc; 489 490 if ((rc = sfxge_phy_stat_update(sc)) != 0) 491 return rc; 492 493 return SYSCTL_OUT(req, 494 (uint32_t *)sc->port.phy_stats.decode_buf + id, 495 sizeof(uint32_t)); 496 } 497 498 static void 499 sfxge_phy_stat_init(struct sfxge_softc *sc) 500 { 501 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev); 502 struct sysctl_oid_list *stat_list; 503 unsigned int id; 504 const char *name; 505 uint64_t stat_mask = efx_nic_cfg_get(sc->enp)->enc_phy_stat_mask; 506 507 stat_list = SYSCTL_CHILDREN(sc->stats_node); 508 509 /* Initialise the named stats */ 510 for (id = 0; id < EFX_PHY_NSTATS; id++) { 511 if (!(stat_mask & ((uint64_t)1 << id))) 512 continue; 513 name = efx_phy_stat_name(sc->enp, id); 514 SYSCTL_ADD_PROC( 515 ctx, stat_list, 516 OID_AUTO, name, CTLTYPE_UINT|CTLFLAG_RD, 517 sc, id, sfxge_phy_stat_handler, 518 id == EFX_PHY_STAT_OUI ? "IX" : "IU", 519 ""); 520 } 521 } 522 523 void 524 sfxge_port_fini(struct sfxge_softc *sc) 525 { 526 struct sfxge_port *port; 527 efsys_mem_t *esmp; 528 529 port = &sc->port; 530 esmp = &port->mac_stats.dma_buf; 531 532 KASSERT(port->init_state == SFXGE_PORT_INITIALIZED, 533 ("Port not initialized")); 534 535 port->init_state = SFXGE_PORT_UNINITIALIZED; 536 537 port->link_mode = EFX_LINK_UNKNOWN; 538 539 /* Finish with PHY DMA memory */ 540 sfxge_dma_free(&port->phy_stats.dma_buf); 541 free(port->phy_stats.decode_buf, M_SFXGE); 542 543 sfxge_dma_free(esmp); 544 free(port->mac_stats.decode_buf, M_SFXGE); 545 546 mtx_destroy(&port->lock); 547 548 port->sc = NULL; 549 } 550 551 int 552 sfxge_port_init(struct sfxge_softc *sc) 553 { 554 struct sfxge_port *port; 555 struct sysctl_ctx_list *sysctl_ctx; 556 struct sysctl_oid *sysctl_tree; 557 efsys_mem_t *mac_stats_buf, *phy_stats_buf; 558 int rc; 559 560 port = &sc->port; 561 mac_stats_buf = &port->mac_stats.dma_buf; 562 phy_stats_buf = &port->phy_stats.dma_buf; 563 564 KASSERT(port->init_state == SFXGE_PORT_UNINITIALIZED, 565 ("Port already initialized")); 566 567 port->sc = sc; 568 569 mtx_init(&port->lock, "sfxge_port", NULL, MTX_DEF); 570 571 port->phy_stats.decode_buf = malloc(EFX_PHY_NSTATS * sizeof(uint32_t), 572 M_SFXGE, M_WAITOK | M_ZERO); 573 if ((rc = sfxge_dma_alloc(sc, EFX_PHY_STATS_SIZE, phy_stats_buf)) != 0) 574 goto fail; 575 bzero(phy_stats_buf->esm_base, phy_stats_buf->esm_size); 576 sfxge_phy_stat_init(sc); 577 578 sysctl_ctx = device_get_sysctl_ctx(sc->dev); 579 sysctl_tree = device_get_sysctl_tree(sc->dev); 580 581 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS 582 /* If flow control cannot be configured or reported through 583 * ifmedia, provide sysctls for it. */ 584 port->wanted_fc = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE; 585 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, 586 "wanted_fc", CTLTYPE_UINT|CTLFLAG_RW, sc, 0, 587 sfxge_port_wanted_fc_handler, "IU", "wanted flow control mode"); 588 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, 589 "link_fc", CTLTYPE_UINT|CTLFLAG_RD, sc, 0, 590 sfxge_port_link_fc_handler, "IU", "link flow control mode"); 591 #endif 592 593 port->mac_stats.decode_buf = malloc(EFX_MAC_NSTATS * sizeof(uint64_t), 594 M_SFXGE, M_WAITOK | M_ZERO); 595 if ((rc = sfxge_dma_alloc(sc, EFX_MAC_STATS_SIZE, mac_stats_buf)) != 0) 596 goto fail2; 597 bzero(mac_stats_buf->esm_base, mac_stats_buf->esm_size); 598 sfxge_mac_stat_init(sc); 599 600 port->init_state = SFXGE_PORT_INITIALIZED; 601 602 return (0); 603 604 fail2: 605 free(port->mac_stats.decode_buf, M_SFXGE); 606 sfxge_dma_free(phy_stats_buf); 607 fail: 608 free(port->phy_stats.decode_buf, M_SFXGE); 609 (void)mtx_destroy(&port->lock); 610 port->sc = NULL; 611 return rc; 612 } 613 614 static int sfxge_link_mode[EFX_PHY_MEDIA_NTYPES][EFX_LINK_NMODES] = { 615 [EFX_PHY_MEDIA_CX4] = { 616 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_CX4, 617 }, 618 [EFX_PHY_MEDIA_KX4] = { 619 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_KX4, 620 }, 621 [EFX_PHY_MEDIA_XFP] = { 622 /* Don't know the module type, but assume SR for now. */ 623 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR, 624 }, 625 [EFX_PHY_MEDIA_SFP_PLUS] = { 626 /* Don't know the module type, but assume SX/SR for now. */ 627 [EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_SX, 628 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR, 629 }, 630 [EFX_PHY_MEDIA_BASE_T] = { 631 [EFX_LINK_10HDX] = IFM_ETHER | IFM_HDX | IFM_10_T, 632 [EFX_LINK_10FDX] = IFM_ETHER | IFM_FDX | IFM_10_T, 633 [EFX_LINK_100HDX] = IFM_ETHER | IFM_HDX | IFM_100_TX, 634 [EFX_LINK_100FDX] = IFM_ETHER | IFM_FDX | IFM_100_TX, 635 [EFX_LINK_1000HDX] = IFM_ETHER | IFM_HDX | IFM_1000_T, 636 [EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_T, 637 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_T, 638 }, 639 }; 640 641 static void 642 sfxge_media_status(struct ifnet *ifp, struct ifmediareq *ifmr) 643 { 644 struct sfxge_softc *sc; 645 efx_phy_media_type_t medium_type; 646 efx_link_mode_t mode; 647 648 sc = ifp->if_softc; 649 sx_xlock(&sc->softc_lock); 650 651 ifmr->ifm_status = IFM_AVALID; 652 ifmr->ifm_active = IFM_ETHER; 653 654 if (SFXGE_RUNNING(sc) && SFXGE_LINK_UP(sc)) { 655 ifmr->ifm_status |= IFM_ACTIVE; 656 657 efx_phy_media_type_get(sc->enp, &medium_type); 658 mode = sc->port.link_mode; 659 ifmr->ifm_active |= sfxge_link_mode[medium_type][mode]; 660 ifmr->ifm_active |= sfxge_port_link_fc_ifm(sc); 661 } 662 663 sx_xunlock(&sc->softc_lock); 664 } 665 666 static int 667 sfxge_media_change(struct ifnet *ifp) 668 { 669 struct sfxge_softc *sc; 670 struct ifmedia_entry *ifm; 671 int rc; 672 673 sc = ifp->if_softc; 674 ifm = sc->media.ifm_cur; 675 676 sx_xlock(&sc->softc_lock); 677 678 if (!SFXGE_RUNNING(sc)) { 679 rc = 0; 680 goto out; 681 } 682 683 rc = efx_mac_fcntl_set(sc->enp, sfxge_port_wanted_fc(sc), B_TRUE); 684 if (rc != 0) 685 goto out; 686 687 rc = efx_phy_adv_cap_set(sc->enp, ifm->ifm_data); 688 out: 689 sx_xunlock(&sc->softc_lock); 690 691 return rc; 692 } 693 694 int sfxge_port_ifmedia_init(struct sfxge_softc *sc) 695 { 696 efx_phy_media_type_t medium_type; 697 uint32_t cap_mask, mode_cap_mask; 698 efx_link_mode_t mode; 699 int mode_ifm, best_mode_ifm = 0; 700 int rc; 701 702 /* We need port state to initialise the ifmedia list. */ 703 if ((rc = efx_nic_init(sc->enp)) != 0) 704 goto out; 705 if ((rc = efx_port_init(sc->enp)) != 0) 706 goto out2; 707 708 /* 709 * Register ifconfig callbacks for querying and setting the 710 * link mode and link status. 711 */ 712 ifmedia_init(&sc->media, IFM_IMASK, sfxge_media_change, 713 sfxge_media_status); 714 715 /* 716 * Map firmware medium type and capabilities to ifmedia types. 717 * ifmedia does not distinguish between forcing the link mode 718 * and disabling auto-negotiation. 1000BASE-T and 10GBASE-T 719 * require AN even if only one link mode is enabled, and for 720 * 100BASE-TX it is useful even if the link mode is forced. 721 * Therefore we never disable auto-negotiation. 722 * 723 * Also enable and advertise flow control by default. 724 */ 725 726 efx_phy_media_type_get(sc->enp, &medium_type); 727 efx_phy_adv_cap_get(sc->enp, EFX_PHY_CAP_PERM, &cap_mask); 728 729 EFX_STATIC_ASSERT(EFX_LINK_10HDX == EFX_PHY_CAP_10HDX + 1); 730 EFX_STATIC_ASSERT(EFX_LINK_10FDX == EFX_PHY_CAP_10FDX + 1); 731 EFX_STATIC_ASSERT(EFX_LINK_100HDX == EFX_PHY_CAP_100HDX + 1); 732 EFX_STATIC_ASSERT(EFX_LINK_100FDX == EFX_PHY_CAP_100FDX + 1); 733 EFX_STATIC_ASSERT(EFX_LINK_1000HDX == EFX_PHY_CAP_1000HDX + 1); 734 EFX_STATIC_ASSERT(EFX_LINK_1000FDX == EFX_PHY_CAP_1000FDX + 1); 735 EFX_STATIC_ASSERT(EFX_LINK_10000FDX == EFX_PHY_CAP_10000FDX + 1); 736 737 for (mode = EFX_LINK_10HDX; mode <= EFX_LINK_10000FDX; mode++) { 738 mode_cap_mask = 1 << (mode - 1); 739 mode_ifm = sfxge_link_mode[medium_type][mode]; 740 741 if ((cap_mask & mode_cap_mask) && mode_ifm) { 742 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_AN); 743 744 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS 745 /* No flow-control */ 746 ifmedia_add(&sc->media, mode_ifm, mode_cap_mask, NULL); 747 748 /* Respond-only. If using AN, we implicitly 749 * offer symmetric as well, but that doesn't 750 * mean we *have* to generate pause frames. 751 */ 752 mode_cap_mask |= cap_mask & ((1 << EFX_PHY_CAP_PAUSE) | 753 (1 << EFX_PHY_CAP_ASYM)); 754 mode_ifm |= IFM_ETH_RXPAUSE; 755 ifmedia_add(&sc->media, mode_ifm, mode_cap_mask, NULL); 756 757 /* Symmetric */ 758 mode_cap_mask &= ~(1 << EFX_PHY_CAP_ASYM); 759 mode_ifm |= IFM_ETH_TXPAUSE; 760 #else /* !SFXGE_HAVE_PAUSE_MEDIAOPTS */ 761 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_PAUSE); 762 #endif 763 ifmedia_add(&sc->media, mode_ifm, mode_cap_mask, NULL); 764 765 /* Link modes are numbered in order of speed, 766 * so assume the last one available is the best. 767 */ 768 best_mode_ifm = mode_ifm; 769 } 770 } 771 772 if (cap_mask & (1 << EFX_PHY_CAP_AN)) { 773 /* Add autoselect mode. */ 774 mode_ifm = IFM_ETHER | IFM_AUTO; 775 ifmedia_add(&sc->media, mode_ifm, 776 cap_mask & ~(1 << EFX_PHY_CAP_ASYM), NULL); 777 best_mode_ifm = mode_ifm; 778 } 779 780 if (best_mode_ifm) 781 ifmedia_set(&sc->media, best_mode_ifm); 782 783 /* Now discard port state until interface is started. */ 784 efx_port_fini(sc->enp); 785 out2: 786 efx_nic_fini(sc->enp); 787 out: 788 return rc; 789 }
Cache object: 78a44307dad2a319c7188aef86959e45
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