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sys/dev/sfxge/sfxge_port.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010-2016 Solarflare Communications Inc. 5 * All rights reserved. 6 * 7 * This software was developed in part by Philip Paeps under contract for 8 * Solarflare Communications, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright notice, 14 * this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright notice, 16 * this list of conditions and the following disclaimer in the documentation 17 * and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, 29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * The views and conclusions contained in the software and documentation are 32 * those of the authors and should not be interpreted as representing official 33 * policies, either expressed or implied, of the FreeBSD Project. 34 */ 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 #include <sys/types.h> 40 #include <sys/limits.h> 41 #include <net/ethernet.h> 42 #include <net/if_dl.h> 43 44 #include "common/efx.h" 45 46 #include "sfxge.h" 47 48 #define SFXGE_PARAM_STATS_UPDATE_PERIOD_MS \ 49 SFXGE_PARAM(stats_update_period_ms) 50 static int sfxge_stats_update_period_ms = SFXGE_STATS_UPDATE_PERIOD_MS; 51 TUNABLE_INT(SFXGE_PARAM_STATS_UPDATE_PERIOD_MS, 52 &sfxge_stats_update_period_ms); 53 SYSCTL_INT(_hw_sfxge, OID_AUTO, stats_update_period_ms, CTLFLAG_RDTUN, 54 &sfxge_stats_update_period_ms, 0, 55 "netstat interface statistics update period in milliseconds"); 56 57 static int sfxge_phy_cap_mask(struct sfxge_softc *, int, uint32_t *); 58 59 static int 60 sfxge_mac_stat_update(struct sfxge_softc *sc) 61 { 62 struct sfxge_port *port = &sc->port; 63 efsys_mem_t *esmp = &(port->mac_stats.dma_buf); 64 clock_t now; 65 unsigned int min_ticks; 66 unsigned int count; 67 int rc; 68 69 SFXGE_PORT_LOCK_ASSERT_OWNED(port); 70 71 if (__predict_false(port->init_state != SFXGE_PORT_STARTED)) { 72 rc = 0; 73 goto out; 74 } 75 76 min_ticks = (unsigned int)hz * port->stats_update_period_ms / 1000; 77 78 now = ticks; 79 if ((unsigned int)(now - port->mac_stats.update_time) < min_ticks) { 80 rc = 0; 81 goto out; 82 } 83 84 port->mac_stats.update_time = now; 85 86 /* If we're unlucky enough to read statistics wduring the DMA, wait 87 * up to 10ms for it to finish (typically takes <500us) */ 88 for (count = 0; count < 100; ++count) { 89 EFSYS_PROBE1(wait, unsigned int, count); 90 91 /* Try to update the cached counters */ 92 if ((rc = efx_mac_stats_update(sc->enp, esmp, 93 port->mac_stats.decode_buf, NULL)) != EAGAIN) 94 goto out; 95 96 DELAY(100); 97 } 98 99 rc = ETIMEDOUT; 100 out: 101 return (rc); 102 } 103 104 uint64_t 105 sfxge_get_counter(struct ifnet *ifp, ift_counter c) 106 { 107 struct sfxge_softc *sc = ifp->if_softc; 108 uint64_t *mac_stats; 109 uint64_t val; 110 111 SFXGE_PORT_LOCK(&sc->port); 112 113 /* Ignore error and use old values */ 114 (void)sfxge_mac_stat_update(sc); 115 116 mac_stats = (uint64_t *)sc->port.mac_stats.decode_buf; 117 118 switch (c) { 119 case IFCOUNTER_IPACKETS: 120 val = mac_stats[EFX_MAC_RX_PKTS]; 121 break; 122 case IFCOUNTER_IERRORS: 123 val = mac_stats[EFX_MAC_RX_ERRORS]; 124 break; 125 case IFCOUNTER_OPACKETS: 126 val = mac_stats[EFX_MAC_TX_PKTS]; 127 break; 128 case IFCOUNTER_OERRORS: 129 val = mac_stats[EFX_MAC_TX_ERRORS]; 130 break; 131 case IFCOUNTER_COLLISIONS: 132 val = mac_stats[EFX_MAC_TX_SGL_COL_PKTS] + 133 mac_stats[EFX_MAC_TX_MULT_COL_PKTS] + 134 mac_stats[EFX_MAC_TX_EX_COL_PKTS] + 135 mac_stats[EFX_MAC_TX_LATE_COL_PKTS]; 136 break; 137 case IFCOUNTER_IBYTES: 138 val = mac_stats[EFX_MAC_RX_OCTETS]; 139 break; 140 case IFCOUNTER_OBYTES: 141 val = mac_stats[EFX_MAC_TX_OCTETS]; 142 break; 143 case IFCOUNTER_OMCASTS: 144 val = mac_stats[EFX_MAC_TX_MULTICST_PKTS] + 145 mac_stats[EFX_MAC_TX_BRDCST_PKTS]; 146 break; 147 case IFCOUNTER_OQDROPS: 148 SFXGE_PORT_UNLOCK(&sc->port); 149 return (sfxge_tx_get_drops(sc)); 150 case IFCOUNTER_IMCASTS: 151 /* if_imcasts is maintained in net/if_ethersubr.c */ 152 case IFCOUNTER_IQDROPS: 153 /* if_iqdrops is maintained in net/if_ethersubr.c */ 154 case IFCOUNTER_NOPROTO: 155 /* if_noproto is maintained in net/if_ethersubr.c */ 156 default: 157 SFXGE_PORT_UNLOCK(&sc->port); 158 return (if_get_counter_default(ifp, c)); 159 } 160 161 SFXGE_PORT_UNLOCK(&sc->port); 162 163 return (val); 164 } 165 166 static int 167 sfxge_mac_stat_handler(SYSCTL_HANDLER_ARGS) 168 { 169 struct sfxge_softc *sc = arg1; 170 unsigned int id = arg2; 171 int rc; 172 uint64_t val; 173 174 SFXGE_PORT_LOCK(&sc->port); 175 if ((rc = sfxge_mac_stat_update(sc)) == 0) 176 val = ((uint64_t *)sc->port.mac_stats.decode_buf)[id]; 177 SFXGE_PORT_UNLOCK(&sc->port); 178 179 if (rc == 0) 180 rc = SYSCTL_OUT(req, &val, sizeof(val)); 181 return (rc); 182 } 183 184 static void 185 sfxge_mac_stat_init(struct sfxge_softc *sc) 186 { 187 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev); 188 struct sysctl_oid_list *stat_list; 189 unsigned int id; 190 const char *name; 191 192 stat_list = SYSCTL_CHILDREN(sc->stats_node); 193 194 /* Initialise the named stats */ 195 for (id = 0; id < EFX_MAC_NSTATS; id++) { 196 name = efx_mac_stat_name(sc->enp, id); 197 SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO, name, 198 CTLTYPE_U64 | CTLFLAG_RD | CTLFLAG_MPSAFE, 199 sc, id, sfxge_mac_stat_handler, "Q", ""); 200 } 201 } 202 203 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS 204 205 static unsigned int 206 sfxge_port_wanted_fc(struct sfxge_softc *sc) 207 { 208 struct ifmedia_entry *ifm = sc->media.ifm_cur; 209 210 if (ifm->ifm_media == (IFM_ETHER | IFM_AUTO)) 211 return (EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE); 212 return (((ifm->ifm_media & IFM_ETH_RXPAUSE) ? EFX_FCNTL_RESPOND : 0) | 213 ((ifm->ifm_media & IFM_ETH_TXPAUSE) ? EFX_FCNTL_GENERATE : 0)); 214 } 215 216 static unsigned int 217 sfxge_port_link_fc_ifm(struct sfxge_softc *sc) 218 { 219 unsigned int wanted_fc, link_fc; 220 221 efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc); 222 return ((link_fc & EFX_FCNTL_RESPOND) ? IFM_ETH_RXPAUSE : 0) | 223 ((link_fc & EFX_FCNTL_GENERATE) ? IFM_ETH_TXPAUSE : 0); 224 } 225 226 #else /* !SFXGE_HAVE_PAUSE_MEDIAOPTS */ 227 228 static unsigned int 229 sfxge_port_wanted_fc(struct sfxge_softc *sc) 230 { 231 return (sc->port.wanted_fc); 232 } 233 234 static unsigned int 235 sfxge_port_link_fc_ifm(struct sfxge_softc *sc) 236 { 237 return (0); 238 } 239 240 static int 241 sfxge_port_wanted_fc_handler(SYSCTL_HANDLER_ARGS) 242 { 243 struct sfxge_softc *sc; 244 struct sfxge_port *port; 245 unsigned int fcntl; 246 int error; 247 248 sc = arg1; 249 port = &sc->port; 250 251 if (req->newptr != NULL) { 252 if ((error = SYSCTL_IN(req, &fcntl, sizeof(fcntl))) != 0) 253 return (error); 254 255 SFXGE_PORT_LOCK(port); 256 257 if (port->wanted_fc != fcntl) { 258 if (port->init_state == SFXGE_PORT_STARTED) 259 error = efx_mac_fcntl_set(sc->enp, 260 port->wanted_fc, 261 B_TRUE); 262 if (error == 0) 263 port->wanted_fc = fcntl; 264 } 265 266 SFXGE_PORT_UNLOCK(port); 267 } else { 268 SFXGE_PORT_LOCK(port); 269 fcntl = port->wanted_fc; 270 SFXGE_PORT_UNLOCK(port); 271 272 error = SYSCTL_OUT(req, &fcntl, sizeof(fcntl)); 273 } 274 275 return (error); 276 } 277 278 static int 279 sfxge_port_link_fc_handler(SYSCTL_HANDLER_ARGS) 280 { 281 struct sfxge_softc *sc; 282 struct sfxge_port *port; 283 unsigned int wanted_fc, link_fc; 284 285 sc = arg1; 286 port = &sc->port; 287 288 SFXGE_PORT_LOCK(port); 289 if (__predict_true(port->init_state == SFXGE_PORT_STARTED) && 290 SFXGE_LINK_UP(sc)) 291 efx_mac_fcntl_get(sc->enp, &wanted_fc, &link_fc); 292 else 293 link_fc = 0; 294 SFXGE_PORT_UNLOCK(port); 295 296 return (SYSCTL_OUT(req, &link_fc, sizeof(link_fc))); 297 } 298 299 #endif /* SFXGE_HAVE_PAUSE_MEDIAOPTS */ 300 301 static const uint64_t sfxge_link_baudrate[EFX_LINK_NMODES] = { 302 [EFX_LINK_10HDX] = IF_Mbps(10), 303 [EFX_LINK_10FDX] = IF_Mbps(10), 304 [EFX_LINK_100HDX] = IF_Mbps(100), 305 [EFX_LINK_100FDX] = IF_Mbps(100), 306 [EFX_LINK_1000HDX] = IF_Gbps(1), 307 [EFX_LINK_1000FDX] = IF_Gbps(1), 308 [EFX_LINK_10000FDX] = IF_Gbps(10), 309 [EFX_LINK_25000FDX] = IF_Gbps(25), 310 [EFX_LINK_40000FDX] = IF_Gbps(40), 311 [EFX_LINK_50000FDX] = IF_Gbps(50), 312 [EFX_LINK_100000FDX] = IF_Gbps(100), 313 }; 314 315 void 316 sfxge_mac_link_update(struct sfxge_softc *sc, efx_link_mode_t mode) 317 { 318 struct sfxge_port *port; 319 int link_state; 320 321 port = &sc->port; 322 323 if (port->link_mode == mode) 324 return; 325 326 port->link_mode = mode; 327 328 /* Push link state update to the OS */ 329 link_state = (SFXGE_LINK_UP(sc) ? LINK_STATE_UP : LINK_STATE_DOWN); 330 sc->ifnet->if_baudrate = sfxge_link_baudrate[port->link_mode]; 331 if_link_state_change(sc->ifnet, link_state); 332 } 333 334 static void 335 sfxge_mac_poll_work(void *arg, int npending) 336 { 337 struct sfxge_softc *sc; 338 efx_nic_t *enp; 339 struct sfxge_port *port; 340 efx_link_mode_t mode; 341 342 sc = (struct sfxge_softc *)arg; 343 enp = sc->enp; 344 port = &sc->port; 345 346 SFXGE_PORT_LOCK(port); 347 348 if (__predict_false(port->init_state != SFXGE_PORT_STARTED)) 349 goto done; 350 351 /* This may sleep waiting for MCDI completion */ 352 (void)efx_port_poll(enp, &mode); 353 sfxge_mac_link_update(sc, mode); 354 355 done: 356 SFXGE_PORT_UNLOCK(port); 357 } 358 359 static u_int 360 sfxge_copy_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 361 { 362 uint8_t *mcast_addr = arg; 363 364 if (cnt == EFX_MAC_MULTICAST_LIST_MAX) 365 return (0); 366 367 memcpy(mcast_addr + (cnt * EFX_MAC_ADDR_LEN), LLADDR(sdl), 368 EFX_MAC_ADDR_LEN); 369 370 return (1); 371 } 372 373 static int 374 sfxge_mac_multicast_list_set(struct sfxge_softc *sc) 375 { 376 struct ifnet *ifp = sc->ifnet; 377 struct sfxge_port *port = &sc->port; 378 int rc = 0; 379 380 mtx_assert(&port->lock, MA_OWNED); 381 382 port->mcast_count = if_foreach_llmaddr(ifp, sfxge_copy_maddr, 383 port->mcast_addrs); 384 if (port->mcast_count == EFX_MAC_MULTICAST_LIST_MAX) { 385 device_printf(sc->dev, "Too many multicast addresses\n"); 386 rc = EINVAL; 387 } 388 389 if (rc == 0) { 390 rc = efx_mac_multicast_list_set(sc->enp, port->mcast_addrs, 391 port->mcast_count); 392 if (rc != 0) 393 device_printf(sc->dev, 394 "Cannot set multicast address list\n"); 395 } 396 397 return (rc); 398 } 399 400 static int 401 sfxge_mac_filter_set_locked(struct sfxge_softc *sc) 402 { 403 struct ifnet *ifp = sc->ifnet; 404 struct sfxge_port *port = &sc->port; 405 boolean_t all_mulcst; 406 int rc; 407 408 mtx_assert(&port->lock, MA_OWNED); 409 410 all_mulcst = !!(ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)); 411 412 rc = sfxge_mac_multicast_list_set(sc); 413 /* Fallback to all multicast if cannot set multicast list */ 414 if (rc != 0) 415 all_mulcst = B_TRUE; 416 417 rc = efx_mac_filter_set(sc->enp, !!(ifp->if_flags & IFF_PROMISC), 418 (port->mcast_count > 0), all_mulcst, B_TRUE); 419 420 return (rc); 421 } 422 423 int 424 sfxge_mac_filter_set(struct sfxge_softc *sc) 425 { 426 struct sfxge_port *port = &sc->port; 427 int rc; 428 429 SFXGE_PORT_LOCK(port); 430 /* 431 * The function may be called without softc_lock held in the 432 * case of SIOCADDMULTI and SIOCDELMULTI ioctls. ioctl handler 433 * checks IFF_DRV_RUNNING flag which implies port started, but 434 * it is not guaranteed to remain. softc_lock shared lock can't 435 * be held in the case of these ioctls processing, since it 436 * results in failure where kernel complains that non-sleepable 437 * lock is held in sleeping thread. Both problems are repeatable 438 * on LAG with LACP proto bring up. 439 */ 440 if (__predict_true(port->init_state == SFXGE_PORT_STARTED)) 441 rc = sfxge_mac_filter_set_locked(sc); 442 else 443 rc = 0; 444 SFXGE_PORT_UNLOCK(port); 445 return (rc); 446 } 447 448 void 449 sfxge_port_stop(struct sfxge_softc *sc) 450 { 451 struct sfxge_port *port; 452 efx_nic_t *enp; 453 454 port = &sc->port; 455 enp = sc->enp; 456 457 SFXGE_PORT_LOCK(port); 458 459 KASSERT(port->init_state == SFXGE_PORT_STARTED, 460 ("port not started")); 461 462 port->init_state = SFXGE_PORT_INITIALIZED; 463 464 port->mac_stats.update_time = 0; 465 466 /* This may call MCDI */ 467 (void)efx_mac_drain(enp, B_TRUE); 468 469 (void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 0, B_FALSE); 470 471 port->link_mode = EFX_LINK_UNKNOWN; 472 473 /* Destroy the common code port object. */ 474 efx_port_fini(enp); 475 476 efx_filter_fini(enp); 477 478 SFXGE_PORT_UNLOCK(port); 479 } 480 481 int 482 sfxge_port_start(struct sfxge_softc *sc) 483 { 484 uint8_t mac_addr[ETHER_ADDR_LEN]; 485 struct epoch_tracker et; 486 struct ifnet *ifp = sc->ifnet; 487 struct sfxge_port *port; 488 efx_nic_t *enp; 489 size_t pdu; 490 int rc; 491 uint32_t phy_cap_mask; 492 493 port = &sc->port; 494 enp = sc->enp; 495 496 SFXGE_PORT_LOCK(port); 497 498 KASSERT(port->init_state == SFXGE_PORT_INITIALIZED, 499 ("port not initialized")); 500 501 /* Initialise the required filtering */ 502 if ((rc = efx_filter_init(enp)) != 0) 503 goto fail_filter_init; 504 505 /* Initialize the port object in the common code. */ 506 if ((rc = efx_port_init(sc->enp)) != 0) 507 goto fail; 508 509 /* Set the SDU */ 510 pdu = EFX_MAC_PDU(ifp->if_mtu); 511 if ((rc = efx_mac_pdu_set(enp, pdu)) != 0) 512 goto fail2; 513 514 if ((rc = efx_mac_fcntl_set(enp, sfxge_port_wanted_fc(sc), B_TRUE)) 515 != 0) 516 goto fail3; 517 518 /* Set the unicast address */ 519 NET_EPOCH_ENTER(et); 520 bcopy(LLADDR((struct sockaddr_dl *)ifp->if_addr->ifa_addr), 521 mac_addr, sizeof(mac_addr)); 522 NET_EPOCH_EXIT(et); 523 if ((rc = efx_mac_addr_set(enp, mac_addr)) != 0) 524 goto fail4; 525 526 sfxge_mac_filter_set_locked(sc); 527 528 /* Update MAC stats by DMA every period */ 529 if ((rc = efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 530 port->stats_update_period_ms, 531 B_FALSE)) != 0) 532 goto fail6; 533 534 if ((rc = efx_mac_drain(enp, B_FALSE)) != 0) 535 goto fail8; 536 537 if ((rc = sfxge_phy_cap_mask(sc, sc->media.ifm_cur->ifm_media, 538 &phy_cap_mask)) != 0) 539 goto fail9; 540 541 if ((rc = efx_phy_adv_cap_set(sc->enp, phy_cap_mask)) != 0) 542 goto fail10; 543 544 port->init_state = SFXGE_PORT_STARTED; 545 546 /* Single poll in case there were missing initial events */ 547 SFXGE_PORT_UNLOCK(port); 548 sfxge_mac_poll_work(sc, 0); 549 550 return (0); 551 552 fail10: 553 fail9: 554 (void)efx_mac_drain(enp, B_TRUE); 555 fail8: 556 (void)efx_mac_stats_periodic(enp, &port->mac_stats.dma_buf, 0, B_FALSE); 557 fail6: 558 fail4: 559 fail3: 560 561 fail2: 562 efx_port_fini(enp); 563 fail: 564 efx_filter_fini(enp); 565 fail_filter_init: 566 SFXGE_PORT_UNLOCK(port); 567 568 return (rc); 569 } 570 571 static int 572 sfxge_phy_stat_update(struct sfxge_softc *sc) 573 { 574 struct sfxge_port *port = &sc->port; 575 efsys_mem_t *esmp = &port->phy_stats.dma_buf; 576 clock_t now; 577 unsigned int count; 578 int rc; 579 580 SFXGE_PORT_LOCK_ASSERT_OWNED(port); 581 582 if (__predict_false(port->init_state != SFXGE_PORT_STARTED)) { 583 rc = 0; 584 goto out; 585 } 586 587 now = ticks; 588 if ((unsigned int)(now - port->phy_stats.update_time) < (unsigned int)hz) { 589 rc = 0; 590 goto out; 591 } 592 593 port->phy_stats.update_time = now; 594 595 /* If we're unlucky enough to read statistics wduring the DMA, wait 596 * up to 10ms for it to finish (typically takes <500us) */ 597 for (count = 0; count < 100; ++count) { 598 EFSYS_PROBE1(wait, unsigned int, count); 599 600 /* Synchronize the DMA memory for reading */ 601 bus_dmamap_sync(esmp->esm_tag, esmp->esm_map, 602 BUS_DMASYNC_POSTREAD); 603 604 /* Try to update the cached counters */ 605 if ((rc = efx_phy_stats_update(sc->enp, esmp, 606 port->phy_stats.decode_buf)) != EAGAIN) 607 goto out; 608 609 DELAY(100); 610 } 611 612 rc = ETIMEDOUT; 613 out: 614 return (rc); 615 } 616 617 static int 618 sfxge_phy_stat_handler(SYSCTL_HANDLER_ARGS) 619 { 620 struct sfxge_softc *sc = arg1; 621 unsigned int id = arg2; 622 int rc; 623 uint32_t val; 624 625 SFXGE_PORT_LOCK(&sc->port); 626 if ((rc = sfxge_phy_stat_update(sc)) == 0) 627 val = ((uint32_t *)sc->port.phy_stats.decode_buf)[id]; 628 SFXGE_PORT_UNLOCK(&sc->port); 629 630 if (rc == 0) 631 rc = SYSCTL_OUT(req, &val, sizeof(val)); 632 return (rc); 633 } 634 635 static void 636 sfxge_phy_stat_init(struct sfxge_softc *sc) 637 { 638 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev); 639 struct sysctl_oid_list *stat_list; 640 unsigned int id; 641 const char *name; 642 uint64_t stat_mask = efx_nic_cfg_get(sc->enp)->enc_phy_stat_mask; 643 644 stat_list = SYSCTL_CHILDREN(sc->stats_node); 645 646 /* Initialise the named stats */ 647 for (id = 0; id < EFX_PHY_NSTATS; id++) { 648 if (!(stat_mask & ((uint64_t)1 << id))) 649 continue; 650 name = efx_phy_stat_name(sc->enp, id); 651 SYSCTL_ADD_PROC(ctx, stat_list, OID_AUTO, name, 652 CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, 653 sc, id, sfxge_phy_stat_handler, 654 id == EFX_PHY_STAT_OUI ? "IX" : "IU", ""); 655 } 656 } 657 658 void 659 sfxge_port_fini(struct sfxge_softc *sc) 660 { 661 struct sfxge_port *port; 662 efsys_mem_t *esmp; 663 664 port = &sc->port; 665 esmp = &port->mac_stats.dma_buf; 666 667 KASSERT(port->init_state == SFXGE_PORT_INITIALIZED, 668 ("Port not initialized")); 669 670 port->init_state = SFXGE_PORT_UNINITIALIZED; 671 672 port->link_mode = EFX_LINK_UNKNOWN; 673 674 /* Finish with PHY DMA memory */ 675 sfxge_dma_free(&port->phy_stats.dma_buf); 676 free(port->phy_stats.decode_buf, M_SFXGE); 677 678 sfxge_dma_free(esmp); 679 free(port->mac_stats.decode_buf, M_SFXGE); 680 681 SFXGE_PORT_LOCK_DESTROY(port); 682 683 port->sc = NULL; 684 } 685 686 static uint16_t 687 sfxge_port_stats_update_period_ms(struct sfxge_softc *sc) 688 { 689 int period_ms = sfxge_stats_update_period_ms; 690 691 if (period_ms < 0) { 692 device_printf(sc->dev, 693 "treat negative stats update period %d as 0 (disable)\n", 694 period_ms); 695 period_ms = 0; 696 } else if (period_ms > UINT16_MAX) { 697 device_printf(sc->dev, 698 "treat too big stats update period %d as %u\n", 699 period_ms, UINT16_MAX); 700 period_ms = UINT16_MAX; 701 } 702 703 return period_ms; 704 } 705 706 static int 707 sfxge_port_stats_update_period_ms_handler(SYSCTL_HANDLER_ARGS) 708 { 709 struct sfxge_softc *sc; 710 struct sfxge_port *port; 711 unsigned int period_ms; 712 int error; 713 714 sc = arg1; 715 port = &sc->port; 716 717 if (req->newptr != NULL) { 718 error = SYSCTL_IN(req, &period_ms, sizeof(period_ms)); 719 if (error != 0) 720 return (error); 721 722 if (period_ms > UINT16_MAX) 723 return (EINVAL); 724 725 SFXGE_PORT_LOCK(port); 726 727 if (port->stats_update_period_ms != period_ms) { 728 if (port->init_state == SFXGE_PORT_STARTED) 729 error = efx_mac_stats_periodic(sc->enp, 730 &port->mac_stats.dma_buf, 731 period_ms, B_FALSE); 732 if (error == 0) 733 port->stats_update_period_ms = period_ms; 734 } 735 736 SFXGE_PORT_UNLOCK(port); 737 } else { 738 SFXGE_PORT_LOCK(port); 739 period_ms = port->stats_update_period_ms; 740 SFXGE_PORT_UNLOCK(port); 741 742 error = SYSCTL_OUT(req, &period_ms, sizeof(period_ms)); 743 } 744 745 return (error); 746 } 747 748 int 749 sfxge_port_init(struct sfxge_softc *sc) 750 { 751 struct sfxge_port *port; 752 struct sysctl_ctx_list *sysctl_ctx; 753 struct sysctl_oid *sysctl_tree; 754 efsys_mem_t *mac_stats_buf, *phy_stats_buf; 755 uint32_t mac_nstats; 756 size_t mac_stats_size; 757 int rc; 758 759 port = &sc->port; 760 mac_stats_buf = &port->mac_stats.dma_buf; 761 phy_stats_buf = &port->phy_stats.dma_buf; 762 763 KASSERT(port->init_state == SFXGE_PORT_UNINITIALIZED, 764 ("Port already initialized")); 765 766 port->sc = sc; 767 768 SFXGE_PORT_LOCK_INIT(port, device_get_nameunit(sc->dev)); 769 770 DBGPRINT(sc->dev, "alloc PHY stats"); 771 port->phy_stats.decode_buf = malloc(EFX_PHY_NSTATS * sizeof(uint32_t), 772 M_SFXGE, M_WAITOK | M_ZERO); 773 if ((rc = sfxge_dma_alloc(sc, EFX_PHY_STATS_SIZE, phy_stats_buf)) != 0) 774 goto fail; 775 sfxge_phy_stat_init(sc); 776 777 DBGPRINT(sc->dev, "init sysctl"); 778 sysctl_ctx = device_get_sysctl_ctx(sc->dev); 779 sysctl_tree = device_get_sysctl_tree(sc->dev); 780 781 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS 782 /* If flow control cannot be configured or reported through 783 * ifmedia, provide sysctls for it. */ 784 port->wanted_fc = EFX_FCNTL_RESPOND | EFX_FCNTL_GENERATE; 785 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, 786 "wanted_fc", CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, 787 sfxge_port_wanted_fc_handler, "IU", "wanted flow control mode"); 788 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, 789 "link_fc", CTLTYPE_UINT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0, 790 sfxge_port_link_fc_handler, "IU", "link flow control mode"); 791 #endif 792 793 DBGPRINT(sc->dev, "alloc MAC stats"); 794 port->mac_stats.decode_buf = malloc(EFX_MAC_NSTATS * sizeof(uint64_t), 795 M_SFXGE, M_WAITOK | M_ZERO); 796 mac_nstats = efx_nic_cfg_get(sc->enp)->enc_mac_stats_nstats; 797 mac_stats_size = EFX_P2ROUNDUP(size_t, mac_nstats * sizeof(uint64_t), 798 EFX_BUF_SIZE); 799 if ((rc = sfxge_dma_alloc(sc, mac_stats_size, mac_stats_buf)) != 0) 800 goto fail2; 801 port->stats_update_period_ms = sfxge_port_stats_update_period_ms(sc); 802 sfxge_mac_stat_init(sc); 803 804 SYSCTL_ADD_PROC(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree), OID_AUTO, 805 "stats_update_period_ms", 806 CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0, 807 sfxge_port_stats_update_period_ms_handler, "IU", 808 "interface statistics refresh period"); 809 810 port->init_state = SFXGE_PORT_INITIALIZED; 811 812 DBGPRINT(sc->dev, "success"); 813 return (0); 814 815 fail2: 816 free(port->mac_stats.decode_buf, M_SFXGE); 817 sfxge_dma_free(phy_stats_buf); 818 fail: 819 free(port->phy_stats.decode_buf, M_SFXGE); 820 SFXGE_PORT_LOCK_DESTROY(port); 821 port->sc = NULL; 822 DBGPRINT(sc->dev, "failed %d", rc); 823 return (rc); 824 } 825 826 static const int sfxge_link_mode[EFX_PHY_MEDIA_NTYPES][EFX_LINK_NMODES] = { 827 [EFX_PHY_MEDIA_CX4] = { 828 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_CX4, 829 }, 830 [EFX_PHY_MEDIA_KX4] = { 831 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_KX4, 832 }, 833 [EFX_PHY_MEDIA_XFP] = { 834 /* Don't know the module type, but assume SR for now. */ 835 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR, 836 }, 837 [EFX_PHY_MEDIA_QSFP_PLUS] = { 838 /* Don't know the module type, but assume SR for now. */ 839 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR, 840 [EFX_LINK_25000FDX] = IFM_ETHER | IFM_FDX | IFM_25G_SR, 841 [EFX_LINK_40000FDX] = IFM_ETHER | IFM_FDX | IFM_40G_CR4, 842 [EFX_LINK_50000FDX] = IFM_ETHER | IFM_FDX | IFM_50G_SR, 843 [EFX_LINK_100000FDX] = IFM_ETHER | IFM_FDX | IFM_100G_SR2, 844 }, 845 [EFX_PHY_MEDIA_SFP_PLUS] = { 846 /* Don't know the module type, but assume SX/SR for now. */ 847 [EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_SX, 848 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_SR, 849 [EFX_LINK_25000FDX] = IFM_ETHER | IFM_FDX | IFM_25G_SR, 850 }, 851 [EFX_PHY_MEDIA_BASE_T] = { 852 [EFX_LINK_10HDX] = IFM_ETHER | IFM_HDX | IFM_10_T, 853 [EFX_LINK_10FDX] = IFM_ETHER | IFM_FDX | IFM_10_T, 854 [EFX_LINK_100HDX] = IFM_ETHER | IFM_HDX | IFM_100_TX, 855 [EFX_LINK_100FDX] = IFM_ETHER | IFM_FDX | IFM_100_TX, 856 [EFX_LINK_1000HDX] = IFM_ETHER | IFM_HDX | IFM_1000_T, 857 [EFX_LINK_1000FDX] = IFM_ETHER | IFM_FDX | IFM_1000_T, 858 [EFX_LINK_10000FDX] = IFM_ETHER | IFM_FDX | IFM_10G_T, 859 }, 860 }; 861 862 static void 863 sfxge_media_status(struct ifnet *ifp, struct ifmediareq *ifmr) 864 { 865 struct sfxge_softc *sc; 866 efx_phy_media_type_t medium_type; 867 efx_link_mode_t mode; 868 869 sc = ifp->if_softc; 870 SFXGE_ADAPTER_LOCK(sc); 871 872 ifmr->ifm_status = IFM_AVALID; 873 ifmr->ifm_active = IFM_ETHER; 874 875 if (SFXGE_RUNNING(sc) && SFXGE_LINK_UP(sc)) { 876 ifmr->ifm_status |= IFM_ACTIVE; 877 878 efx_phy_media_type_get(sc->enp, &medium_type); 879 mode = sc->port.link_mode; 880 ifmr->ifm_active |= sfxge_link_mode[medium_type][mode]; 881 ifmr->ifm_active |= sfxge_port_link_fc_ifm(sc); 882 } 883 884 SFXGE_ADAPTER_UNLOCK(sc); 885 } 886 887 static efx_phy_cap_type_t 888 sfxge_link_mode_to_phy_cap(efx_link_mode_t mode) 889 { 890 switch (mode) { 891 case EFX_LINK_10HDX: 892 return (EFX_PHY_CAP_10HDX); 893 case EFX_LINK_10FDX: 894 return (EFX_PHY_CAP_10FDX); 895 case EFX_LINK_100HDX: 896 return (EFX_PHY_CAP_100HDX); 897 case EFX_LINK_100FDX: 898 return (EFX_PHY_CAP_100FDX); 899 case EFX_LINK_1000HDX: 900 return (EFX_PHY_CAP_1000HDX); 901 case EFX_LINK_1000FDX: 902 return (EFX_PHY_CAP_1000FDX); 903 case EFX_LINK_10000FDX: 904 return (EFX_PHY_CAP_10000FDX); 905 case EFX_LINK_25000FDX: 906 return (EFX_PHY_CAP_25000FDX); 907 case EFX_LINK_40000FDX: 908 return (EFX_PHY_CAP_40000FDX); 909 case EFX_LINK_50000FDX: 910 return (EFX_PHY_CAP_50000FDX); 911 case EFX_LINK_100000FDX: 912 return (EFX_PHY_CAP_100000FDX); 913 default: 914 return (EFX_PHY_CAP_INVALID); 915 } 916 } 917 918 static int 919 sfxge_phy_cap_mask(struct sfxge_softc *sc, int ifmedia, uint32_t *phy_cap_mask) 920 { 921 /* Get global options (duplex), type and subtype bits */ 922 int ifmedia_masked = ifmedia & (IFM_GMASK | IFM_NMASK | IFM_TMASK); 923 efx_phy_media_type_t medium_type; 924 boolean_t mode_found = B_FALSE; 925 uint32_t cap_mask, mode_cap_mask; 926 efx_link_mode_t mode; 927 efx_phy_cap_type_t phy_cap; 928 929 efx_phy_media_type_get(sc->enp, &medium_type); 930 if (medium_type >= nitems(sfxge_link_mode)) { 931 if_printf(sc->ifnet, "unexpected media type %d\n", medium_type); 932 return (EINVAL); 933 } 934 935 efx_phy_adv_cap_get(sc->enp, EFX_PHY_CAP_PERM, &cap_mask); 936 937 for (mode = EFX_LINK_10HDX; mode < EFX_LINK_NMODES; mode++) { 938 if (ifmedia_masked == sfxge_link_mode[medium_type][mode]) { 939 mode_found = B_TRUE; 940 break; 941 } 942 } 943 944 if (!mode_found) { 945 /* 946 * If media is not in the table, it must be IFM_AUTO. 947 */ 948 KASSERT((cap_mask & (1 << EFX_PHY_CAP_AN)) && 949 ifmedia_masked == (IFM_ETHER | IFM_AUTO), 950 ("%s: no mode for media %#x", __func__, ifmedia)); 951 *phy_cap_mask = (cap_mask & ~(1 << EFX_PHY_CAP_ASYM)); 952 return (0); 953 } 954 955 phy_cap = sfxge_link_mode_to_phy_cap(mode); 956 if (phy_cap == EFX_PHY_CAP_INVALID) { 957 if_printf(sc->ifnet, 958 "cannot map link mode %d to phy capability\n", 959 mode); 960 return (EINVAL); 961 } 962 963 mode_cap_mask = (1 << phy_cap); 964 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_AN); 965 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS 966 if (ifmedia & IFM_ETH_RXPAUSE) 967 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_PAUSE); 968 if (!(ifmedia & IFM_ETH_TXPAUSE)) 969 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_ASYM); 970 #else 971 mode_cap_mask |= cap_mask & (1 << EFX_PHY_CAP_PAUSE); 972 #endif 973 974 *phy_cap_mask = mode_cap_mask; 975 return (0); 976 } 977 978 static int 979 sfxge_media_change(struct ifnet *ifp) 980 { 981 struct sfxge_softc *sc; 982 struct ifmedia_entry *ifm; 983 int rc; 984 uint32_t phy_cap_mask; 985 986 sc = ifp->if_softc; 987 ifm = sc->media.ifm_cur; 988 989 SFXGE_ADAPTER_LOCK(sc); 990 991 if (!SFXGE_RUNNING(sc)) { 992 rc = 0; 993 goto out; 994 } 995 996 rc = efx_mac_fcntl_set(sc->enp, sfxge_port_wanted_fc(sc), B_TRUE); 997 if (rc != 0) 998 goto out; 999 1000 if ((rc = sfxge_phy_cap_mask(sc, ifm->ifm_media, &phy_cap_mask)) != 0) 1001 goto out; 1002 1003 rc = efx_phy_adv_cap_set(sc->enp, phy_cap_mask); 1004 out: 1005 SFXGE_ADAPTER_UNLOCK(sc); 1006 1007 return (rc); 1008 } 1009 1010 int sfxge_port_ifmedia_init(struct sfxge_softc *sc) 1011 { 1012 efx_phy_media_type_t medium_type; 1013 uint32_t cap_mask, mode_cap_mask; 1014 efx_link_mode_t mode; 1015 efx_phy_cap_type_t phy_cap; 1016 int mode_ifm, best_mode_ifm = 0; 1017 int rc; 1018 1019 /* 1020 * We need port state to initialise the ifmedia list. 1021 * It requires initialized NIC what is already done in 1022 * sfxge_create() when resources are estimated. 1023 */ 1024 if ((rc = efx_filter_init(sc->enp)) != 0) 1025 goto out1; 1026 if ((rc = efx_port_init(sc->enp)) != 0) 1027 goto out2; 1028 1029 /* 1030 * Register ifconfig callbacks for querying and setting the 1031 * link mode and link status. 1032 */ 1033 ifmedia_init(&sc->media, IFM_IMASK, sfxge_media_change, 1034 sfxge_media_status); 1035 1036 /* 1037 * Map firmware medium type and capabilities to ifmedia types. 1038 * ifmedia does not distinguish between forcing the link mode 1039 * and disabling auto-negotiation. 1000BASE-T and 10GBASE-T 1040 * require AN even if only one link mode is enabled, and for 1041 * 100BASE-TX it is useful even if the link mode is forced. 1042 * Therefore we never disable auto-negotiation. 1043 * 1044 * Also enable and advertise flow control by default. 1045 */ 1046 1047 efx_phy_media_type_get(sc->enp, &medium_type); 1048 efx_phy_adv_cap_get(sc->enp, EFX_PHY_CAP_PERM, &cap_mask); 1049 1050 for (mode = EFX_LINK_10HDX; mode < EFX_LINK_NMODES; mode++) { 1051 phy_cap = sfxge_link_mode_to_phy_cap(mode); 1052 if (phy_cap == EFX_PHY_CAP_INVALID) 1053 continue; 1054 1055 mode_cap_mask = (1 << phy_cap); 1056 mode_ifm = sfxge_link_mode[medium_type][mode]; 1057 1058 if ((cap_mask & mode_cap_mask) && mode_ifm) { 1059 /* No flow-control */ 1060 ifmedia_add(&sc->media, mode_ifm, 0, NULL); 1061 1062 #ifdef SFXGE_HAVE_PAUSE_MEDIAOPTS 1063 /* Respond-only. If using AN, we implicitly 1064 * offer symmetric as well, but that doesn't 1065 * mean we *have* to generate pause frames. 1066 */ 1067 mode_ifm |= IFM_ETH_RXPAUSE; 1068 ifmedia_add(&sc->media, mode_ifm, 0, NULL); 1069 1070 /* Symmetric */ 1071 mode_ifm |= IFM_ETH_TXPAUSE; 1072 ifmedia_add(&sc->media, mode_ifm, 0, NULL); 1073 #endif 1074 1075 /* Link modes are numbered in order of speed, 1076 * so assume the last one available is the best. 1077 */ 1078 best_mode_ifm = mode_ifm; 1079 } 1080 } 1081 1082 if (cap_mask & (1 << EFX_PHY_CAP_AN)) { 1083 /* Add autoselect mode. */ 1084 mode_ifm = IFM_ETHER | IFM_AUTO; 1085 ifmedia_add(&sc->media, mode_ifm, 0, NULL); 1086 best_mode_ifm = mode_ifm; 1087 } 1088 1089 if (best_mode_ifm != 0) 1090 ifmedia_set(&sc->media, best_mode_ifm); 1091 1092 /* Now discard port state until interface is started. */ 1093 efx_port_fini(sc->enp); 1094 out2: 1095 efx_filter_fini(sc->enp); 1096 out1: 1097 return (rc); 1098 }
Cache object: 182cf03c7666c52aa02369394994bd5f
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