mii_physubr.c revision 1.102
1 /* $NetBSD: mii_physubr.c,v 1.102 2023/02/22 08:09:09 msaitoh 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 1.102 2023/02/22 08:09:09 msaitoh 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/module.h> 47 #include <sys/module_hook.h> 48 #include <sys/proc.h> 49 50 #include <net/if.h> 51 #include <net/if_media.h> 52 #include <net/route.h> 53 54 #include <dev/dev_verbose.h> 55 56 #include <dev/mii/mii.h> 57 #include <dev/mii/miidevs.h> 58 #include <dev/mii/miivar.h> 59 60 DEV_VERBOSE_DEFINE(mii); 61 62 const char * 63 mii_get_descr(char *descr, size_t len, uint32_t oui, uint32_t model) 64 { 65 char temp[MII_MAX_DESCR_LEN]; 66 67 mii_load_verbose(); 68 if (miiverbose_loaded) { 69 if (mii_findvendor(temp, sizeof(temp), oui) == NULL) { 70 descr[0] = '\0'; 71 return NULL; 72 } 73 strlcpy(descr, temp, len); 74 strlcat(descr, " ", len); 75 if (mii_findproduct(temp, sizeof(temp), oui, model) == NULL) { 76 descr[0] = '\0'; 77 return NULL; 78 } 79 strlcat(descr, temp, len); 80 return descr; 81 } 82 snprintf(descr, len, "OUI 0x%06x model 0x%04x", oui, model); 83 return NULL; 84 } 85 86 static void mii_phy_statusmsg(struct mii_softc *); 87 88 /* 89 * Media to register setting conversion table. Order matters. 90 */ 91 static const struct mii_media mii_media_table[MII_NMEDIA] = { 92 /* None */ 93 { BMCR_ISO, ANAR_CSMA, 94 0, }, 95 96 /* 10baseT */ 97 { BMCR_S10, ANAR_CSMA | ANAR_10, 98 0, }, 99 100 /* 10baseT-FDX */ 101 { BMCR_S10|BMCR_FDX, ANAR_CSMA | ANAR_10_FD, 102 0, }, 103 104 /* 100baseT4 */ 105 { BMCR_S100, ANAR_CSMA | ANAR_T4, 106 0, }, 107 108 /* 100baseTX */ 109 { BMCR_S100, ANAR_CSMA | ANAR_TX, 110 0, }, 111 112 /* 100baseTX-FDX */ 113 { BMCR_S100|BMCR_FDX, ANAR_CSMA | ANAR_TX_FD, 114 0, }, 115 116 /* 1000baseX */ 117 { BMCR_S1000, ANAR_CSMA, 118 0, }, 119 120 /* 1000baseX-FDX */ 121 { BMCR_S1000|BMCR_FDX, ANAR_CSMA, 122 0, }, 123 124 /* 1000baseT */ 125 { BMCR_S1000, ANAR_CSMA, 126 GTCR_ADV_1000THDX }, 127 128 /* 1000baseT-FDX */ 129 { BMCR_S1000, ANAR_CSMA, 130 GTCR_ADV_1000TFDX }, 131 }; 132 133 static void mii_phy_auto_timeout(void *); 134 static void mii_phy_auto_timeout_locked(struct mii_softc *); 135 136 void 137 mii_phy_setmedia(struct mii_softc *sc) 138 { 139 struct mii_data *mii = sc->mii_pdata; 140 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 141 uint16_t bmcr, anar, gtcr; 142 143 KASSERT(mii_locked(mii)); 144 145 if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) { 146 /* 147 * Force renegotiation if MIIF_DOPAUSE. 148 * 149 * XXX This is only necessary because many NICs don't 150 * XXX advertise PAUSE capabilities at boot time. Maybe 151 * XXX we should force this only once? 152 */ 153 PHY_READ(sc, MII_BMCR, &bmcr); 154 if ((bmcr & BMCR_AUTOEN) == 0 || 155 (sc->mii_flags & (MIIF_FORCEANEG | MIIF_DOPAUSE))) 156 (void) mii_phy_auto(sc); 157 return; 158 } 159 160 /* Table index is stored in the media entry. */ 161 162 #ifdef DIAGNOSTIC 163 if (/* ife->ifm_data < 0 || */ ife->ifm_data >= MII_NMEDIA) 164 panic("mii_phy_setmedia"); 165 #endif 166 167 anar = mii_media_table[ife->ifm_data].mm_anar; 168 bmcr = mii_media_table[ife->ifm_data].mm_bmcr; 169 gtcr = mii_media_table[ife->ifm_data].mm_gtcr; 170 171 if (mii->mii_media.ifm_media & IFM_ETH_MASTER) { 172 switch (IFM_SUBTYPE(ife->ifm_media)) { 173 case IFM_1000_T: 174 gtcr |= GTCR_MAN_MS | GTCR_ADV_MS; 175 break; 176 177 default: 178 panic("mii_phy_setmedia: MASTER on wrong media"); 179 } 180 } 181 182 if (mii->mii_media.ifm_media & IFM_FLOW) { 183 if (sc->mii_flags & MIIF_IS_1000X) 184 anar |= ANAR_X_PAUSE_SYM | ANAR_X_PAUSE_ASYM; 185 else { 186 anar |= ANAR_FC; 187 /* XXX Only 1000BASE-T has PAUSE_ASYM? */ 188 if ((sc->mii_flags & MIIF_HAVE_GTCR) && 189 (sc->mii_extcapabilities & 190 (EXTSR_1000THDX | EXTSR_1000TFDX))) 191 anar |= ANAR_PAUSE_ASYM; 192 } 193 } 194 195 if (ife->ifm_media & IFM_LOOP) 196 bmcr |= BMCR_LOOP; 197 198 PHY_WRITE(sc, MII_ANAR, anar); 199 if (sc->mii_flags & MIIF_HAVE_GTCR) 200 PHY_WRITE(sc, MII_100T2CR, gtcr); 201 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) 202 mii_phy_auto(sc); 203 else 204 PHY_WRITE(sc, MII_BMCR, bmcr); 205 } 206 207 /* Setup autonegotiation and start it. */ 208 int 209 mii_phy_auto(struct mii_softc *sc) 210 { 211 struct mii_data *mii = sc->mii_pdata; 212 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 213 214 KASSERT(mii_locked(mii)); 215 216 sc->mii_ticks = 0; 217 if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { 218 /* 219 * Check for 1000BASE-X. Autonegotiation is a bit 220 * different on such devices. 221 */ 222 if (sc->mii_flags & MIIF_IS_1000X) { 223 uint16_t anar = 0; 224 225 if (sc->mii_extcapabilities & EXTSR_1000XFDX) 226 anar |= ANAR_X_FD; 227 if (sc->mii_extcapabilities & EXTSR_1000XHDX) 228 anar |= ANAR_X_HD; 229 230 if (sc->mii_flags & MIIF_DOPAUSE) { 231 /* XXX Asymmetric vs. symmetric? */ 232 anar |= ANLPAR_X_PAUSE_TOWARDS; 233 } 234 235 PHY_WRITE(sc, MII_ANAR, anar); 236 } else { 237 uint16_t anar; 238 239 anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | 240 ANAR_CSMA; 241 if (sc->mii_flags & MIIF_DOPAUSE) { 242 anar |= ANAR_FC; 243 /* XXX Only 1000BASE-T has PAUSE_ASYM? */ 244 if ((sc->mii_flags & MIIF_HAVE_GTCR) && 245 (sc->mii_extcapabilities & 246 (EXTSR_1000THDX | EXTSR_1000TFDX))) 247 anar |= ANAR_PAUSE_ASYM; 248 } 249 250 /* 251 * For 1000-base-T, autonegotiation must be enabled, 252 * but if we're not set to auto, only advertise 253 * 1000-base-T with the link partner. 254 */ 255 if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { 256 anar &= ~(ANAR_T4 | ANAR_TX_FD | ANAR_TX | 257 ANAR_10_FD | ANAR_10); 258 } 259 260 PHY_WRITE(sc, MII_ANAR, anar); 261 if (sc->mii_flags & MIIF_HAVE_GTCR) { 262 uint16_t gtcr = 0; 263 264 if (sc->mii_extcapabilities & EXTSR_1000TFDX) 265 gtcr |= GTCR_ADV_1000TFDX; 266 if (sc->mii_extcapabilities & EXTSR_1000THDX) 267 gtcr |= GTCR_ADV_1000THDX; 268 269 PHY_WRITE(sc, MII_100T2CR, gtcr); 270 } 271 } 272 PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG); 273 } 274 275 /* 276 * Just let it finish asynchronously. This is for the benefit of 277 * the tick handler driving autonegotiation. Don't want 500ms 278 * delays all the time while the system is running! 279 */ 280 if (sc->mii_flags & MIIF_AUTOTSLEEP) { 281 ASSERT_SLEEPABLE(); 282 sc->mii_flags |= MIIF_DOINGAUTO; 283 kpause("miiaut", false, hz >> 1, mii->mii_media.ifm_lock); 284 mii_phy_auto_timeout_locked(sc); 285 KASSERT((sc->mii_flags & MIIF_DOINGAUTO) == 0); 286 cv_broadcast(&sc->mii_nway_cv); 287 } else if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { 288 sc->mii_flags |= MIIF_DOINGAUTO; 289 callout_reset(&sc->mii_nway_ch, hz >> 1, 290 mii_phy_auto_timeout, sc); 291 } 292 return EJUSTRETURN; 293 } 294 295 /* Just restart autonegotiation without changing any setting */ 296 int 297 mii_phy_auto_restart(struct mii_softc *sc) 298 { 299 uint16_t reg; 300 301 PHY_READ(sc, MII_BMCR, ®); 302 reg |= BMCR_STARTNEG; 303 PHY_WRITE(sc, MII_BMCR, reg); 304 sc->mii_ticks = 0; 305 306 return EJUSTRETURN; 307 } 308 309 static void 310 mii_phy_auto_timeout_locked(struct mii_softc *sc) 311 { 312 313 KASSERT(mii_locked(sc->mii_pdata)); 314 KASSERT(sc->mii_flags & MIIF_DOINGAUTO); 315 316 if (!device_is_active(sc->mii_dev)) 317 return; 318 319 sc->mii_flags &= ~MIIF_DOINGAUTO; 320 321 /* Update the media status. */ 322 (void) PHY_SERVICE(sc, sc->mii_pdata, MII_POLLSTAT); 323 } 324 325 static void 326 mii_phy_auto_timeout(void *arg) 327 { 328 struct mii_softc *sc = arg; 329 330 KASSERT((sc->mii_flags & MIIF_AUTOTSLEEP) == 0); 331 332 if (!device_is_active(sc->mii_dev)) 333 return; 334 335 mii_lock(sc->mii_pdata); 336 mii_phy_auto_timeout_locked(sc); 337 mii_unlock(sc->mii_pdata); 338 } 339 340 int 341 mii_phy_tick(struct mii_softc *sc) 342 { 343 struct mii_data *mii = sc->mii_pdata; 344 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 345 uint16_t reg; 346 347 KASSERT(mii_locked(mii)); 348 349 /* Just bail now if the interface is down. */ 350 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 351 return EJUSTRETURN; 352 353 /* 354 * If we're not doing autonegotiation, we don't need to do any extra 355 * work here. However, we need to check the link status so we can 356 * generate an announcement by returning with 0 if the status changes. 357 */ 358 if ((IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) && 359 (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)) { 360 /* 361 * Reset autonegotiation timer to 0 just to make sure 362 * the future autonegotiation start with 0. 363 */ 364 sc->mii_ticks = 0; 365 return 0; 366 } 367 368 /* Read the status register twice; BMSR_LINK is latch-low. */ 369 PHY_READ(sc, MII_BMSR, ®); 370 PHY_READ(sc, MII_BMSR, ®); 371 if (reg & BMSR_LINK) { 372 /* 373 * Reset autonegotiation timer to 0 in case the link 374 * goes down in the next tick. 375 */ 376 sc->mii_ticks = 0; 377 /* See above. */ 378 return 0; 379 } 380 381 /* 382 * mii_ticks == 0 means it's the first tick after changing the media or 383 * the link became down since the last tick (see above), so return with 384 * 0 to update the status. 385 */ 386 if (sc->mii_ticks++ == 0) 387 return 0; 388 389 /* 390 * Only retry autonegotiation every N seconds. 391 */ 392 KASSERT(sc->mii_anegticks != 0); 393 if (sc->mii_ticks < sc->mii_anegticks) 394 return EJUSTRETURN; 395 396 if (mii_phy_auto_restart(sc) == EJUSTRETURN) 397 return EJUSTRETURN; 398 399 /* 400 * Might need to generate a status message if autonegotiation 401 * failed. 402 */ 403 return 0; 404 } 405 406 void 407 mii_phy_reset(struct mii_softc *sc) 408 { 409 int i; 410 uint16_t reg; 411 412 KASSERT(mii_locked(sc->mii_pdata)); 413 414 if (sc->mii_flags & MIIF_NOISOLATE) 415 reg = BMCR_RESET; 416 else 417 reg = BMCR_RESET | BMCR_ISO; 418 PHY_WRITE(sc, MII_BMCR, reg); 419 420 /* Wait another 500ms for it to complete. */ 421 for (i = 0; i < 500; i++) { 422 PHY_READ(sc, MII_BMCR, ®); 423 if ((reg & BMCR_RESET) == 0) 424 break; 425 delay(1000); 426 } 427 428 if (sc->mii_inst != 0 && ((sc->mii_flags & MIIF_NOISOLATE) == 0)) 429 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 430 } 431 432 void 433 mii_phy_down(struct mii_softc *sc) 434 { 435 436 KASSERT(mii_locked(sc->mii_pdata)); 437 438 if (sc->mii_flags & MIIF_AUTOTSLEEP) { 439 while (sc->mii_flags & MIIF_DOINGAUTO) { 440 cv_wait(&sc->mii_nway_cv, 441 sc->mii_pdata->mii_media.ifm_lock); 442 } 443 } else { 444 if ((sc->mii_flags & MIIF_DOINGAUTO) != 0 && 445 callout_halt(&sc->mii_nway_ch, 446 sc->mii_pdata->mii_media.ifm_lock) == 0) { 447 /* 448 * The callout was scheduled, and we prevented 449 * it from running before it expired, so we are 450 * now responsible for clearing the flag. 451 */ 452 sc->mii_flags &= ~MIIF_DOINGAUTO; 453 } 454 } 455 KASSERT((sc->mii_flags & MIIF_DOINGAUTO) == 0); 456 } 457 458 void 459 mii_phy_status(struct mii_softc *sc) 460 { 461 462 KASSERT(mii_locked(sc->mii_pdata)); 463 PHY_STATUS(sc); 464 } 465 466 void 467 mii_phy_update(struct mii_softc *sc, int cmd) 468 { 469 struct mii_data *mii = sc->mii_pdata; 470 u_int mii_media_active; 471 int mii_media_status; 472 473 KASSERT(mii_locked(mii)); 474 475 mii_media_active = mii->mii_media_active; 476 mii_media_status = mii->mii_media_status; 477 478 if (sc->mii_media_active != mii_media_active || 479 sc->mii_media_status != mii_media_status || 480 cmd == MII_MEDIACHG) { 481 mii_phy_statusmsg(sc); 482 (*mii->mii_statchg)(mii->mii_ifp); 483 sc->mii_media_active = mii_media_active; 484 sc->mii_media_status = mii_media_status; 485 } 486 } 487 488 static void 489 mii_phy_statusmsg(struct mii_softc *sc) 490 { 491 struct mii_data *mii = sc->mii_pdata; 492 struct ifnet *ifp = mii->mii_ifp; 493 494 KASSERT(mii_locked(mii)); 495 496 if (mii->mii_media_status & IFM_AVALID) { 497 if (mii->mii_media_status & IFM_ACTIVE) 498 if_link_state_change(ifp, LINK_STATE_UP); 499 else 500 if_link_state_change(ifp, LINK_STATE_DOWN); 501 } else 502 if_link_state_change(ifp, LINK_STATE_UNKNOWN); 503 504 /* XXX NET_MPSAFE */ 505 ifp->if_baudrate = ifmedia_baudrate(mii->mii_media_active); 506 } 507 508 /* 509 * Initialize generic PHY media based on BMSR, called when a PHY is 510 * attached. We expect to be set up to print a comma-separated list 511 * of media names. Does not print a newline. 512 */ 513 void 514 mii_phy_add_media(struct mii_softc *sc) 515 { 516 struct mii_data *mii = sc->mii_pdata; 517 device_t self = sc->mii_dev; 518 const char *sep = ""; 519 int fdx = 0; 520 521 aprint_normal_dev(self, ""); 522 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 523 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) { 524 aprint_error("no media present\n"); 525 goto out; 526 } 527 528 /* 529 * Set the autonegotiation timer for 10/100 media. Gigabit media is 530 * handled below. 531 */ 532 mii_lock(mii); 533 sc->mii_anegticks = MII_ANEGTICKS; 534 mii_unlock(mii); 535 536 #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) 537 #define PRINT(n) aprint_normal("%s%s", sep, (n)); sep = ", " 538 539 /* This flag is static; no need to lock. */ 540 if ((sc->mii_flags & MIIF_NOISOLATE) == 0) 541 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), 542 MII_MEDIA_NONE); 543 544 /* 545 * There are different interpretations for the bits in 546 * HomePNA PHYs. And there is really only one media type 547 * that is supported. This flag is also static, and so 548 * no need to lock. 549 */ 550 if (sc->mii_flags & MIIF_IS_HPNA) { 551 if (sc->mii_capabilities & BMSR_10THDX) { 552 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_HPNA_1, 0, 553 sc->mii_inst), 554 MII_MEDIA_10_T); 555 PRINT("HomePNA1"); 556 } 557 goto out; 558 } 559 560 if (sc->mii_capabilities & BMSR_10THDX) { 561 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst), 562 MII_MEDIA_10_T); 563 PRINT("10baseT"); 564 } 565 if (sc->mii_capabilities & BMSR_10TFDX) { 566 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst), 567 MII_MEDIA_10_T_FDX); 568 PRINT("10baseT-FDX"); 569 fdx = 1; 570 } 571 if (sc->mii_capabilities & BMSR_100TXHDX) { 572 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst), 573 MII_MEDIA_100_TX); 574 PRINT("100baseTX"); 575 } 576 if (sc->mii_capabilities & BMSR_100TXFDX) { 577 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst), 578 MII_MEDIA_100_TX_FDX); 579 PRINT("100baseTX-FDX"); 580 fdx = 1; 581 } 582 if (sc->mii_capabilities & BMSR_100T4) { 583 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, 0, sc->mii_inst), 584 MII_MEDIA_100_T4); 585 PRINT("100baseT4"); 586 } 587 588 if (sc->mii_extcapabilities & EXTSR_MEDIAMASK) { 589 /* 590 * XXX Right now only handle 1000SX and 1000TX. Need 591 * XXX to handle 1000LX and 1000CX some how. 592 * 593 * Note since it can take 5 seconds to auto-negotiate 594 * a gigabit link, we make anegticks 10 seconds for 595 * all the gigabit media types. 596 */ 597 if (sc->mii_extcapabilities & EXTSR_1000XHDX) { 598 mii_lock(mii); 599 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 600 sc->mii_flags |= MIIF_IS_1000X; 601 mii_unlock(mii); 602 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0, 603 sc->mii_inst), MII_MEDIA_1000_X); 604 PRINT("1000baseSX"); 605 } 606 if (sc->mii_extcapabilities & EXTSR_1000XFDX) { 607 mii_lock(mii); 608 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 609 sc->mii_flags |= MIIF_IS_1000X; 610 mii_unlock(mii); 611 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, 612 sc->mii_inst), MII_MEDIA_1000_X_FDX); 613 PRINT("1000baseSX-FDX"); 614 fdx = 1; 615 } 616 617 /* 618 * 1000baseT media needs to be able to manipulate 619 * master/slave mode. We set IFM_ETH_MASTER in 620 * the "don't care mask" and filter it out when 621 * the media is set. 622 * 623 * All 1000baseT PHYs have a 1000baseT control register. 624 */ 625 if (sc->mii_extcapabilities & EXTSR_1000THDX) { 626 mii_lock(mii); 627 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 628 sc->mii_flags |= MIIF_HAVE_GTCR; 629 mii->mii_media.ifm_mask |= IFM_ETH_MASTER; 630 mii_unlock(mii); 631 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0, 632 sc->mii_inst), MII_MEDIA_1000_T); 633 PRINT("1000baseT"); 634 } 635 if (sc->mii_extcapabilities & EXTSR_1000TFDX) { 636 mii_lock(mii); 637 sc->mii_anegticks = MII_ANEGTICKS_GIGE; 638 sc->mii_flags |= MIIF_HAVE_GTCR; 639 mii->mii_media.ifm_mask |= IFM_ETH_MASTER; 640 mii_unlock(mii); 641 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX, 642 sc->mii_inst), MII_MEDIA_1000_T_FDX); 643 PRINT("1000baseT-FDX"); 644 fdx = 1; 645 } 646 } 647 648 if (sc->mii_capabilities & BMSR_ANEG) { 649 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), 650 MII_NMEDIA); /* intentionally invalid index */ 651 PRINT("auto"); 652 } 653 #undef ADD 654 #undef PRINT 655 /* This flag is static; no need to lock. */ 656 if (fdx != 0 && (sc->mii_flags & MIIF_DOPAUSE)) { 657 mii_lock(mii); 658 mii->mii_media.ifm_mask |= IFM_ETH_FMASK; 659 mii_unlock(mii); 660 } 661 out: 662 aprint_normal("\n"); 663 if (!pmf_device_register(self, NULL, mii_phy_resume)) { 664 aprint_error_dev(self, "couldn't establish power handler\n"); 665 } 666 } 667 668 void 669 mii_phy_delete_media(struct mii_softc *sc) 670 { 671 struct mii_data *mii = sc->mii_pdata; 672 673 ifmedia_delete_instance(&mii->mii_media, sc->mii_inst); 674 } 675 676 int 677 mii_phy_activate(device_t self, enum devact act) 678 { 679 680 switch (act) { 681 case DVACT_DEACTIVATE: 682 /* XXX Invalidate parent's media setting? */ 683 return 0; 684 default: 685 return EOPNOTSUPP; 686 } 687 } 688 689 /* ARGSUSED1 */ 690 int 691 mii_phy_detach(device_t self, int flags) 692 { 693 struct mii_softc *sc = device_private(self); 694 695 /* No mii_lock because mii_flags should be stable by now. */ 696 KASSERT((sc->mii_flags & MIIF_DOINGAUTO) == 0); 697 698 if (sc->mii_flags & MIIF_AUTOTSLEEP) 699 cv_destroy(&sc->mii_nway_cv); 700 else 701 callout_destroy(&sc->mii_nway_ch); 702 703 mii_phy_delete_media(sc); 704 705 return 0; 706 } 707 708 const struct mii_phydesc * 709 mii_phy_match(const struct mii_attach_args *ma, const struct mii_phydesc *mpd) 710 { 711 712 for (; mpd->mpd_oui != 0; mpd++) { 713 if (MII_OUI(ma->mii_id1, ma->mii_id2) == mpd->mpd_oui && 714 MII_MODEL(ma->mii_id2) == mpd->mpd_model) 715 return mpd; 716 } 717 return NULL; 718 } 719 720 /* 721 * Return the flow control status flag from MII_ANAR & MII_ANLPAR. 722 */ 723 u_int 724 mii_phy_flowstatus(struct mii_softc *sc) 725 { 726 uint16_t anar, anlpar; 727 728 KASSERT(mii_locked(sc->mii_pdata)); 729 730 if ((sc->mii_flags & MIIF_DOPAUSE) == 0) 731 return 0; 732 733 PHY_READ(sc, MII_ANAR, &anar); 734 PHY_READ(sc, MII_ANLPAR, &anlpar); 735 736 /* For 1000baseX, the bits are in a different location. */ 737 if (sc->mii_flags & MIIF_IS_1000X) { 738 anar <<= 3; 739 anlpar <<= 3; 740 } 741 742 if ((anar & ANAR_PAUSE_SYM) & (anlpar & ANLPAR_PAUSE_SYM)) 743 return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE); 744 745 if ((anar & ANAR_PAUSE_SYM) == 0) { 746 if ((anar & ANAR_PAUSE_ASYM) && 747 ((anlpar & ANLPAR_PAUSE_TOWARDS) == ANLPAR_PAUSE_TOWARDS)) 748 return (IFM_FLOW | IFM_ETH_TXPAUSE); 749 else 750 return 0; 751 } 752 753 if ((anar & ANAR_PAUSE_ASYM) == 0) { 754 if (anlpar & ANLPAR_PAUSE_SYM) 755 return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE); 756 else 757 return 0; 758 } 759 760 switch ((anlpar & ANLPAR_PAUSE_TOWARDS)) { 761 case ANLPAR_PAUSE_NONE: 762 return 0; 763 764 case ANLPAR_PAUSE_ASYM: 765 return (IFM_FLOW | IFM_ETH_RXPAUSE); 766 767 default: 768 return (IFM_FLOW | IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE); 769 } 770 /* NOTREACHED */ 771 } 772 773 bool 774 mii_phy_resume(device_t dv, const pmf_qual_t *qual) 775 { 776 struct mii_softc *sc = device_private(dv); 777 778 mii_lock(sc->mii_pdata); 779 PHY_RESET(sc); 780 bool rv = PHY_SERVICE(sc, sc->mii_pdata, MII_MEDIACHG) == 0; 781 mii_unlock(sc->mii_pdata); 782 783 return rv; 784 } 785 786 787 /* 788 * Given an ifmedia_entry, return the corresponding ANAR value. 789 */ 790 uint16_t 791 mii_anar(struct ifmedia_entry *ife) 792 { 793 794 #ifdef DIAGNOSTIC 795 if (ife->ifm_data >= MII_NMEDIA) 796 panic("mii_anar"); 797 #endif 798 799 return mii_media_table[ife->ifm_data].mm_anar; 800 } 801
Indexes created Tue Sep 30 17:09:57 GMT 2025