mii_physubr.c revision 1.60
1 /* $NetBSD: mii_physubr.c,v 1.60 2008/05/04 17:06:09 xtraeme Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Subroutines common to all PHYs. 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: mii_physubr.c,v 1.60 2008/05/04 17:06:09 xtraeme Exp $"); 39 40 #include <sys/param.h> 41 #include <sys/device.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/socket.h> 45 #include <sys/errno.h> 46 #include <sys/proc.h> 47 48 #include <net/if.h> 49 #include <net/if_media.h> 50 #include <net/route.h> 51 52 #include <dev/mii/mii.h> 53 #include <dev/mii/miivar.h> 54 55 static void mii_phy_statusmsg(struct mii_softc *); 56 57 /* 58 * Media to register setting conversion table. Order matters. 59 */ 60 static const struct mii_media mii_media_table[MII_NMEDIA] = { 61 /* None */ 62 { BMCR_ISO, ANAR_CSMA, 63 0, }, 64 65 /* 10baseT */ 66 { BMCR_S10, ANAR_CSMA|ANAR_10, 67 0, }, 68 69 /* 10baseT-FDX */ 70 { BMCR_S10|BMCR_FDX, ANAR_CSMA|ANAR_10_FD, 71 0, }, 72 73 /* 100baseT4 */ 74 { BMCR_S100, ANAR_CSMA|ANAR_T4, 75 0, }, 76 77 /* 100baseTX */ 78 { BMCR_S100, ANAR_CSMA|ANAR_TX, 79 0, }, 80 81 /* 100baseTX-FDX */ 82 { BMCR_S100|BMCR_FDX, ANAR_CSMA|ANAR_TX_FD, 83 0, }, 84 85 /* 1000baseX */ 86 { BMCR_S1000, ANAR_CSMA, 87 0, }, 88 89 /* 1000baseX-FDX */ 90 { BMCR_S1000|BMCR_FDX, ANAR_CSMA, 91 0, }, 92 93 /* 1000baseT */ 94 { BMCR_S1000, ANAR_CSMA, 95 GTCR_ADV_1000THDX }, 96 97 /* 1000baseT-FDX */ 98 { BMCR_S1000, ANAR_CSMA, 99 GTCR_ADV_1000TFDX }, 100 }; 101 102 static void mii_phy_auto_timeout(void *); 103 104 void 105 mii_phy_setmedia(struct mii_softc *sc) 106 { 107 struct mii_data *mii = sc->mii_pdata; 108 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 109 int bmcr, anar, gtcr; 110 111 if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) { 112 /* 113 * Force renegotiation if MIIF_DOPAUSE. 114 * 115 * XXX This is only necessary because many NICs don't 116 * XXX advertise PAUSE capabilities at boot time. Maybe 117 * XXX we should force this only once? 118 */ 119 if ((PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) == 0 || 120 (sc->mii_flags & (MIIF_FORCEANEG|MIIF_DOPAUSE))) 121 (void) mii_phy_auto(sc, 1); 122 return; 123 } 124 125 /* 126 * Table index is stored in the media entry. 127 */ 128 129 #ifdef DIAGNOSTIC 130 if (/* ife->ifm_data < 0 || */ ife->ifm_data >= MII_NMEDIA) 131 panic("mii_phy_setmedia"); 132 #endif 133 134 anar = mii_media_table[ife->ifm_data].mm_anar; 135 bmcr = mii_media_table[ife->ifm_data].mm_bmcr; 136 gtcr = mii_media_table[ife->ifm_data].mm_gtcr; 137 138 if (mii->mii_media.ifm_media & IFM_ETH_MASTER) { 139 switch (IFM_SUBTYPE(ife->ifm_media)) { 140 case IFM_1000_T: 141 gtcr |= GTCR_MAN_MS|GTCR_ADV_MS; 142 break; 143 144 default: 145 panic("mii_phy_setmedia: MASTER on wrong media"); 146 } 147 } 148 149 if (mii->mii_media.ifm_media & IFM_FLOW) { 150 if (sc->mii_flags & MIIF_IS_1000X) 151 anar |= ANAR_X_PAUSE_SYM | ANAR_X_PAUSE_ASYM; 152 else { 153 anar |= ANAR_FC; 154 /* XXX Only 1000BASE-T has PAUSE_ASYM? */ 155 if ((sc->mii_flags & MIIF_HAVE_GTCR) && 156 (sc->mii_extcapabilities & 157 (EXTSR_1000THDX|EXTSR_1000TFDX))) 158 anar |= ANAR_X_PAUSE_ASYM; 159 } 160 } 161 162 if (ife->ifm_media & IFM_LOOP) 163 bmcr |= BMCR_LOOP; 164 165 PHY_WRITE(sc, MII_ANAR, anar); 166 PHY_WRITE(sc, MII_BMCR, bmcr); 167 if (sc->mii_flags & MIIF_HAVE_GTCR) 168 PHY_WRITE(sc, MII_100T2CR, gtcr); 169 } 170 171 int 172 mii_phy_auto(struct mii_softc *sc, int waitfor) 173 { 174 int i; 175 176 if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { 177 /* 178 * Check for 1000BASE-X. Autonegotiation is a bit 179 * different on such devices. 180 */ 181 if (sc->mii_flags & MIIF_IS_1000X) { 182 uint16_t anar = 0; 183 184 if (sc->mii_extcapabilities & EXTSR_1000XFDX) 185 anar |= ANAR_X_FD; 186 if (sc->mii_extcapabilities & EXTSR_1000XHDX) 187 anar |= ANAR_X_HD; 188 189 if (sc->mii_flags & MIIF_DOPAUSE) { 190 /* XXX Asymmetric vs. symmetric? */ 191 anar |= ANLPAR_X_PAUSE_TOWARDS; 192 } 193 194 PHY_WRITE(sc, MII_ANAR, anar); 195 } else { 196 uint16_t anar; 197 198 anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | 199 ANAR_CSMA; 200 if (sc->mii_flags & MIIF_DOPAUSE) { 201 anar |= ANAR_FC; 202 /* XXX Only 1000BASE-T has PAUSE_ASYM? */ 203 if ((sc->mii_flags & MIIF_HAVE_GTCR) && 204 (sc->mii_extcapabilities & 205 (EXTSR_1000THDX|EXTSR_1000TFDX))) 206 anar |= ANAR_X_PAUSE_ASYM; 207 } 208 PHY_WRITE(sc, MII_ANAR, anar); 209 if (sc->mii_flags & MIIF_HAVE_GTCR) { 210 uint16_t gtcr = 0; 211 212 if (sc->mii_extcapabilities & EXTSR_1000TFDX) 213 gtcr |= GTCR_ADV_1000TFDX; 214 if (sc->mii_extcapabilities & EXTSR_1000THDX) 215 gtcr |= GTCR_ADV_1000THDX; 216 217 PHY_WRITE(sc, MII_100T2CR, gtcr); 218 } 219 } 220 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG); 221 } 222 223 if (waitfor) { 224 /* Wait 500ms for it to complete. */ 225 for (i = 0; i < 500; i++) { 226 if (PHY_READ(sc, MII_BMSR) & BMSR_ACOMP) 227 return (0); 228 delay(1000); 229 } 230 231 /* 232 * Don't need to worry about clearing MIIF_DOINGAUTO. 233 * If that's set, a timeout is pending, and it will 234 * clear the flag. 235 */ 236 return (EIO); 237 } 238 239 /* 240 * Just let it finish asynchronously. This is for the benefit of 241 * the tick handler driving autonegotiation. Don't want 500ms 242 * delays all the time while the system is running! 243 */ 244 if (sc->mii_flags & MIIF_AUTOTSLEEP) { 245 sc->mii_flags |= MIIF_DOINGAUTO; 246 tsleep(&sc->mii_flags, PZERO, "miiaut", hz >> 1); 247 mii_phy_auto_timeout(sc); 248 } else if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { 249 sc->mii_flags |= MIIF_DOINGAUTO; 250 callout_reset(&sc->mii_nway_ch, hz >> 1, 251 mii_phy_auto_timeout, sc); 252 } 253 return (EJUSTRETURN); 254 } 255 256 static void 257 mii_phy_auto_timeout(void *arg) 258 { 259 struct mii_softc *sc = arg; 260 int s; 261 262 if (!device_is_active(sc->mii_dev)) 263 return; 264 265 s = splnet(); 266 sc->mii_flags &= ~MIIF_DOINGAUTO; 267 268 /* Update the media status. */ 269 (void) PHY_SERVICE(sc, sc->mii_pdata, MII_POLLSTAT); 270 splx(s); 271 } 272 273 int 274 mii_phy_tick(struct mii_softc *sc) 275 { 276 struct mii_data *mii = sc->mii_pdata; 277 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 278 int reg; 279 280 /* Just bail now if the interface is down. */ 281 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 282 return (EJUSTRETURN); 283 284 /* 285 * If we're not doing autonegotiation, we don't need to do 286 * any extra work here. However, we need to check the link 287 * status so we can generate an announcement if the status 288 * changes. 289 */ 290 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 291 return (0); 292 293 /* Read the status register twice; BMSR_LINK is latch-low. */ 294 reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); 295 if (reg & BMSR_LINK) { 296 /* 297 * See above. 298 */ 299 return (0); 300 } 301 302 /* 303 * Only retry autonegotiation every N seconds. 304 */ 305 KASSERT(sc->mii_anegticks != 0); 306 if (++sc->mii_ticks <= sc->mii_anegticks) 307 return (EJUSTRETURN); 308 309 sc->mii_ticks = 0; 310 PHY_RESET(sc); 311 312 if (mii_phy_auto(sc, 0) == EJUSTRETURN) 313 return (EJUSTRETURN); 314 315 /* 316 * Might need to generate a status message if autonegotiation 317 * failed. 318 */ 319 return (0); 320 } 321 322 void 323 mii_phy_reset(struct mii_softc *sc) 324 { 325 int reg, i; 326 327 if (sc->mii_flags & MIIF_NOISOLATE) 328 reg = BMCR_RESET; 329 else 330 reg = BMCR_RESET | BMCR_ISO; 331 PHY_WRITE(sc, MII_BMCR, reg); 332 333 /* Wait another 100ms for it to complete. */ 334 for (i = 0; i < 100; i++) { 335 reg = PHY_READ(sc, MII_BMCR); 336 if ((reg & BMCR_RESET) == 0) 337 break; 338 delay(1000); 339 } 340 341 if (sc->mii_inst != 0 && ((sc->mii_flags & MIIF_NOISOLATE) == 0)) 342 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 343 } 344 345 void 346 mii_phy_down(struct mii_softc *sc) 347 { 348 349 if (sc->mii_flags & MIIF_DOINGAUTO) { 350 sc->mii_flags &= ~MIIF_DOINGAUTO; 351 callout_stop(&sc->mii_nway_ch); 352 } 353 } 354 355 void 356 mii_phy_status(struct mii_softc *sc) 357 { 358 359 PHY_STATUS(sc); 360 } 361 362 void 363 mii_phy_update(struct mii_softc *sc, int cmd) 364 { 365 struct mii_data *mii = sc->mii_pdata; 366 367 if (sc->mii_media_active != mii->mii_media_active || 368 sc->mii_media_status != mii->mii_media_status || 369 cmd == MII_MEDIACHG) { 370 mii_phy_statusmsg(sc); 371 (*mii->mii_statchg)(device_parent(sc->mii_dev)); 372 sc->mii_media_active = mii->mii_media_active; 373 sc->mii_media_status = mii->mii_media_status; 374 } 375 } 376 377 static void 378 mii_phy_statusmsg(struct mii_softc *sc) 379 { 380 struct mii_data *mii = sc->mii_pdata; 381 struct ifnet *ifp = mii->mii_ifp; 382 int s; 383 384 s = splnet(); 385 if (mii->mii_media_status & IFM_AVALID) { 386 if (mii->mii_media_status & IFM_ACTIVE) 387 if_link_state_change(ifp, LINK_STATE_UP); 388 else 389 if_link_state_change(ifp, LINK_STATE_DOWN); 390 } else 391 if_link_state_change(ifp, LINK_STATE_UNKNOWN); 392 splx(s); 393 394 ifp->if_baudrate = ifmedia_baudrate(mii->mii_media_active); 395 } 396 397 /* 398 * Initialize generic PHY media based on BMSR, called when a PHY is 399 * attached. We expect to be set up to print a comma-separated list 400 * of media names. Does not print a newline. 401 */ 402 void 403 mii_phy_add_media(struct mii_softc *sc) 404 { 405 struct mii_data *mii = sc->mii_pdata; 406 const char *sep = ""; 407 int fdx = 0; 408 409 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 410 #define PRINT(n) aprint_normal("%s%s", sep, (n)); sep = ", " 411 412 if ((sc->mii_flags & MIIF_NOISOLATE) == 0) 413 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), 414 MII_MEDIA_NONE); 415 416 /* 417 * There are different interpretations for the bits in 418 * HomePNA PHYs. And there is really only one media type 419 * that is supported. 420 */ 421 if (sc->mii_flags & MIIF_IS_HPNA) { 422 if (sc->mii_capabilities & BMSR_10THDX) { 423 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_HPNA_1, 0, 424 sc->mii_inst), 425 MII_MEDIA_10_T); 426 PRINT("HomePNA1"); 427 } 428 return; 429 } 430 431 if (sc->mii_capabilities & BMSR_10THDX) { 432 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst), 433 MII_MEDIA_10_T); 434 PRINT("10baseT"); 435 } 436 if (sc->mii_capabilities & BMSR_10TFDX) { 437 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst), 438 MII_MEDIA_10_T_FDX); 439 PRINT("10baseT-FDX"); 440 fdx = 1; 441 } 442 if (sc->mii_capabilities & BMSR_100TXHDX) { 443 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst), 444 MII_MEDIA_100_TX); 445 PRINT("100baseTX"); 446 } 447 if (sc->mii_capabilities & BMSR_100TXFDX) { 448 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst), 449 MII_MEDIA_100_TX_FDX); 450 PRINT("100baseTX-FDX"); 451 fdx = 1; 452 } 453 if (sc->mii_capabilities & BMSR_100T4) { 454 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, 0, sc->mii_inst), 455 MII_MEDIA_100_T4); 456 PRINT("100baseT4"); 457 } 458 459 if (sc->mii_extcapabilities & EXTSR_MEDIAMASK) { 460 /* 461 * XXX Right now only handle 1000SX and 1000TX. Need 462 * XXX to handle 1000LX and 1000CX some how. 463 * 464 * Note since it can take 5 seconds to auto-negotiate 465 * a gigabit link, we make anegticks 10 seconds for 466 * all the gigabit media types. 467 */ 468 if (sc->mii_extcapabilities & EXTSR_1000XHDX) { 469 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 470 sc->mii_flags |= MIIF_IS_1000X; 471 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0, 472 sc->mii_inst), MII_MEDIA_1000_X); 473 PRINT("1000baseSX"); 474 } 475 if (sc->mii_extcapabilities & EXTSR_1000XFDX) { 476 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 477 sc->mii_flags |= MIIF_IS_1000X; 478 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, 479 sc->mii_inst), MII_MEDIA_1000_X_FDX); 480 PRINT("1000baseSX-FDX"); 481 fdx = 1; 482 } 483 484 /* 485 * 1000baseT media needs to be able to manipulate 486 * master/slave mode. We set IFM_ETH_MASTER in 487 * the "don't care mask" and filter it out when 488 * the media is set. 489 * 490 * All 1000baseT PHYs have a 1000baseT control register. 491 */ 492 if (sc->mii_extcapabilities & EXTSR_1000THDX) { 493 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 494 sc->mii_flags |= MIIF_HAVE_GTCR; 495 mii->mii_media.ifm_mask |= IFM_ETH_MASTER; 496 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0, 497 sc->mii_inst), MII_MEDIA_1000_T); 498 PRINT("1000baseT"); 499 } 500 if (sc->mii_extcapabilities & EXTSR_1000TFDX) { 501 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 502 sc->mii_flags |= MIIF_HAVE_GTCR; 503 mii->mii_media.ifm_mask |= IFM_ETH_MASTER; 504 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX, 505 sc->mii_inst), MII_MEDIA_1000_T_FDX); 506 PRINT("1000baseT-FDX"); 507 fdx = 1; 508 } 509 } 510 511 if (sc->mii_capabilities & BMSR_ANEG) { 512 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 513 MII_NMEDIA); /* intentionally invalid index */ 514 PRINT("auto"); 515 } 516 #undef ADD 517 #undef PRINT 518 if (fdx != 0 && (sc->mii_flags & MIIF_DOPAUSE)) 519 mii->mii_media.ifm_mask |= IFM_ETH_FMASK; 520 } 521 522 void 523 mii_phy_delete_media(struct mii_softc *sc) 524 { 525 struct mii_data *mii = sc->mii_pdata; 526 527 ifmedia_delete_instance(&mii->mii_media, sc->mii_inst); 528 } 529 530 int 531 mii_phy_activate(struct device *self, enum devact act) 532 { 533 int rv = 0; 534 535 switch (act) { 536 case DVACT_ACTIVATE: 537 rv = EOPNOTSUPP; 538 break; 539 540 case DVACT_DEACTIVATE: 541 /* Nothing special to do. */ 542 break; 543 } 544 545 return (rv); 546 } 547 548 /* ARGSUSED1 */ 549 int 550 mii_phy_detach(struct device *self, int flags) 551 { 552 struct mii_softc *sc = device_private(self); 553 554 if (sc->mii_flags & MIIF_DOINGAUTO) 555 callout_stop(&sc->mii_nway_ch); 556 557 mii_phy_delete_media(sc); 558 LIST_REMOVE(sc, mii_list); 559 560 return (0); 561 } 562 563 const struct mii_phydesc * 564 mii_phy_match(const struct mii_attach_args *ma, const struct mii_phydesc *mpd) 565 { 566 567 for (; mpd->mpd_name != NULL; mpd++) { 568 if (MII_OUI(ma->mii_id1, ma->mii_id2) == mpd->mpd_oui && 569 MII_MODEL(ma->mii_id2) == mpd->mpd_model) 570 return (mpd); 571 } 572 return (NULL); 573 } 574 575 /* 576 * Return the flow control status flag from MII_ANAR & MII_ANLPAR. 577 */ 578 u_int 579 mii_phy_flowstatus(struct mii_softc *sc) 580 { 581 u_int anar, anlpar; 582 583 if ((sc->mii_flags & MIIF_DOPAUSE) == 0) 584 return (0); 585 586 anar = PHY_READ(sc, MII_ANAR); 587 anlpar = PHY_READ(sc, MII_ANLPAR); 588 589 if ((anar & ANAR_X_PAUSE_SYM) & (anlpar & ANLPAR_X_PAUSE_SYM)) 590 return (IFM_FLOW|IFM_ETH_TXPAUSE|IFM_ETH_RXPAUSE); 591 592 if ((anar & ANAR_X_PAUSE_SYM) == 0) { 593 if ((anar & ANAR_X_PAUSE_ASYM) && 594 ((anlpar & 595 ANLPAR_X_PAUSE_TOWARDS) == ANLPAR_X_PAUSE_TOWARDS)) 596 return (IFM_FLOW|IFM_ETH_TXPAUSE); 597 else 598 return (0); 599 } 600 601 if ((anar & ANAR_X_PAUSE_ASYM) == 0) { 602 if (anlpar & ANLPAR_X_PAUSE_SYM) 603 return (IFM_FLOW|IFM_ETH_TXPAUSE|IFM_ETH_RXPAUSE); 604 else 605 return (0); 606 } 607 608 switch ((anlpar & ANLPAR_X_PAUSE_TOWARDS)) { 609 case ANLPAR_X_PAUSE_NONE: 610 return (0); 611 612 case ANLPAR_X_PAUSE_ASYM: 613 return (IFM_FLOW|IFM_ETH_RXPAUSE); 614 615 default: 616 return (IFM_FLOW|IFM_ETH_RXPAUSE|IFM_ETH_TXPAUSE); 617 } 618 /* NOTREACHED */ 619 } 620 621 bool 622 mii_phy_resume(device_t dv PMF_FN_ARGS) 623 { 624 struct mii_softc *sc = device_private(dv); 625 626 PHY_RESET(sc); 627 return PHY_SERVICE(sc, sc->mii_pdata, MII_MEDIACHG) == 0; 628 } 629
Indexes created Tue Sep 30 11:09:46 GMT 2025