| 1 | /* $NetBSD: mii_physubr.c,v 1.80 2013/06/20 13:56:29 roy 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 1.80 2013/06/20 13:56:29 roy 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/proc.h> |
| 48 | |
| 49 | #include <net/if.h> |
| 50 | #include <net/if_media.h> |
| 51 | #include <net/route.h> |
| 52 | |
| 53 | #include <dev/mii/mii.h> |
| 54 | #include <dev/mii/miivar.h> |
| 55 | |
| 56 | const char *(*mii_get_descr)(int, int) = mii_get_descr_stub; |
| 57 | |
| 58 | int mii_verbose_loaded = 0; |
| 59 | |
| 60 | const char *mii_get_descr_stub(int oui, int model) |
| 61 | { |
| 62 | mii_load_verbose(); |
| 63 | if (mii_verbose_loaded) |
| 64 | return mii_get_descr(oui, model); |
| 65 | else |
| 66 | return NULL; |
| 67 | } |
| 68 | |
| 69 | /* |
| 70 | * Routine to load the miiverbose kernel module as needed |
| 71 | */ |
| 72 | void mii_load_verbose(void) |
| 73 | { |
| 74 | if (mii_verbose_loaded == 0) |
| 75 | module_autoload("miiverbose" , MODULE_CLASS_MISC); |
| 76 | } |
| 77 | |
| 78 | static void mii_phy_statusmsg(struct mii_softc *); |
| 79 | |
| 80 | /* |
| 81 | * Media to register setting conversion table. Order matters. |
| 82 | */ |
| 83 | static const struct mii_media mii_media_table[MII_NMEDIA] = { |
| 84 | /* None */ |
| 85 | { BMCR_ISO, ANAR_CSMA, |
| 86 | 0, }, |
| 87 | |
| 88 | /* 10baseT */ |
| 89 | { BMCR_S10, ANAR_CSMA|ANAR_10, |
| 90 | 0, }, |
| 91 | |
| 92 | /* 10baseT-FDX */ |
| 93 | { BMCR_S10|BMCR_FDX, ANAR_CSMA|ANAR_10_FD, |
| 94 | 0, }, |
| 95 | |
| 96 | /* 100baseT4 */ |
| 97 | { BMCR_S100, ANAR_CSMA|ANAR_T4, |
| 98 | 0, }, |
| 99 | |
| 100 | /* 100baseTX */ |
| 101 | { BMCR_S100, ANAR_CSMA|ANAR_TX, |
| 102 | 0, }, |
| 103 | |
| 104 | /* 100baseTX-FDX */ |
| 105 | { BMCR_S100|BMCR_FDX, ANAR_CSMA|ANAR_TX_FD, |
| 106 | 0, }, |
| 107 | |
| 108 | /* 1000baseX */ |
| 109 | { BMCR_S1000, ANAR_CSMA, |
| 110 | 0, }, |
| 111 | |
| 112 | /* 1000baseX-FDX */ |
| 113 | { BMCR_S1000|BMCR_FDX, ANAR_CSMA, |
| 114 | 0, }, |
| 115 | |
| 116 | /* 1000baseT */ |
| 117 | { BMCR_S1000, ANAR_CSMA, |
| 118 | GTCR_ADV_1000THDX }, |
| 119 | |
| 120 | /* 1000baseT-FDX */ |
| 121 | { BMCR_S1000, ANAR_CSMA, |
| 122 | GTCR_ADV_1000TFDX }, |
| 123 | }; |
| 124 | |
| 125 | static void mii_phy_auto_timeout(void *); |
| 126 | |
| 127 | void |
| 128 | mii_phy_setmedia(struct mii_softc *sc) |
| 129 | { |
| 130 | struct mii_data *mii = sc->mii_pdata; |
| 131 | struct ifmedia_entry *ife = mii->mii_media.ifm_cur; |
| 132 | int bmcr, anar, gtcr; |
| 133 | |
| 134 | if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) { |
| 135 | /* |
| 136 | * Force renegotiation if MIIF_DOPAUSE. |
| 137 | * |
| 138 | * XXX This is only necessary because many NICs don't |
| 139 | * XXX advertise PAUSE capabilities at boot time. Maybe |
| 140 | * XXX we should force this only once? |
| 141 | */ |
| 142 | if ((PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) == 0 || |
| 143 | (sc->mii_flags & (MIIF_FORCEANEG|MIIF_DOPAUSE))) |
| 144 | (void) mii_phy_auto(sc, 1); |
| 145 | return; |
| 146 | } |
| 147 | |
| 148 | /* |
| 149 | * Table index is stored in the media entry. |
| 150 | */ |
| 151 | |
| 152 | #ifdef DIAGNOSTIC |
| 153 | if (/* ife->ifm_data < 0 || */ ife->ifm_data >= MII_NMEDIA) |
| 154 | panic("mii_phy_setmedia" ); |
| 155 | #endif |
| 156 | |
| 157 | anar = mii_media_table[ife->ifm_data].mm_anar; |
| 158 | bmcr = mii_media_table[ife->ifm_data].mm_bmcr; |
| 159 | gtcr = mii_media_table[ife->ifm_data].mm_gtcr; |
| 160 | |
| 161 | if (mii->mii_media.ifm_media & IFM_ETH_MASTER) { |
| 162 | switch (IFM_SUBTYPE(ife->ifm_media)) { |
| 163 | case IFM_1000_T: |
| 164 | gtcr |= GTCR_MAN_MS|GTCR_ADV_MS; |
| 165 | break; |
| 166 | |
| 167 | default: |
| 168 | panic("mii_phy_setmedia: MASTER on wrong media" ); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | if (mii->mii_media.ifm_media & IFM_FLOW) { |
| 173 | if (sc->mii_flags & MIIF_IS_1000X) |
| 174 | anar |= ANAR_X_PAUSE_SYM | ANAR_X_PAUSE_ASYM; |
| 175 | else { |
| 176 | anar |= ANAR_FC; |
| 177 | /* XXX Only 1000BASE-T has PAUSE_ASYM? */ |
| 178 | if ((sc->mii_flags & MIIF_HAVE_GTCR) && |
| 179 | (sc->mii_extcapabilities & |
| 180 | (EXTSR_1000THDX | EXTSR_1000TFDX))) |
| 181 | anar |= ANAR_PAUSE_ASYM; |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | if (ife->ifm_media & IFM_LOOP) |
| 186 | bmcr |= BMCR_LOOP; |
| 187 | |
| 188 | PHY_WRITE(sc, MII_ANAR, anar); |
| 189 | if (sc->mii_flags & MIIF_HAVE_GTCR) |
| 190 | PHY_WRITE(sc, MII_100T2CR, gtcr); |
| 191 | if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { |
| 192 | mii_phy_auto(sc, 0); |
| 193 | } else { |
| 194 | PHY_WRITE(sc, MII_BMCR, bmcr); |
| 195 | } |
| 196 | } |
| 197 | |
| 198 | int |
| 199 | mii_phy_auto(struct mii_softc *sc, int waitfor) |
| 200 | { |
| 201 | int i; |
| 202 | struct mii_data *mii = sc->mii_pdata; |
| 203 | struct ifmedia_entry *ife = mii->mii_media.ifm_cur; |
| 204 | |
| 205 | sc->mii_ticks = 0; |
| 206 | if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { |
| 207 | /* |
| 208 | * Check for 1000BASE-X. Autonegotiation is a bit |
| 209 | * different on such devices. |
| 210 | */ |
| 211 | if (sc->mii_flags & MIIF_IS_1000X) { |
| 212 | uint16_t anar = 0; |
| 213 | |
| 214 | if (sc->mii_extcapabilities & EXTSR_1000XFDX) |
| 215 | anar |= ANAR_X_FD; |
| 216 | if (sc->mii_extcapabilities & EXTSR_1000XHDX) |
| 217 | anar |= ANAR_X_HD; |
| 218 | |
| 219 | if (sc->mii_flags & MIIF_DOPAUSE) { |
| 220 | /* XXX Asymmetric vs. symmetric? */ |
| 221 | anar |= ANLPAR_X_PAUSE_TOWARDS; |
| 222 | } |
| 223 | |
| 224 | PHY_WRITE(sc, MII_ANAR, anar); |
| 225 | } else { |
| 226 | uint16_t anar; |
| 227 | |
| 228 | anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) | |
| 229 | ANAR_CSMA; |
| 230 | if (sc->mii_flags & MIIF_DOPAUSE) { |
| 231 | anar |= ANAR_FC; |
| 232 | /* XXX Only 1000BASE-T has PAUSE_ASYM? */ |
| 233 | if ((sc->mii_flags & MIIF_HAVE_GTCR) && |
| 234 | (sc->mii_extcapabilities & |
| 235 | (EXTSR_1000THDX | EXTSR_1000TFDX))) |
| 236 | anar |= ANAR_PAUSE_ASYM; |
| 237 | } |
| 238 | |
| 239 | /* |
| 240 | *for 1000-base-T, autonegotiation mus be enabled, but |
| 241 | *if we're not set to auto, only advertise |
| 242 | *1000-base-T with the link partner. |
| 243 | */ |
| 244 | if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { |
| 245 | anar &= ~(ANAR_T4|ANAR_TX_FD|ANAR_TX|ANAR_10_FD|ANAR_10); |
| 246 | } |
| 247 | |
| 248 | PHY_WRITE(sc, MII_ANAR, anar); |
| 249 | if (sc->mii_flags & MIIF_HAVE_GTCR) { |
| 250 | uint16_t gtcr = 0; |
| 251 | |
| 252 | if (sc->mii_extcapabilities & EXTSR_1000TFDX) |
| 253 | gtcr |= GTCR_ADV_1000TFDX; |
| 254 | if (sc->mii_extcapabilities & EXTSR_1000THDX) |
| 255 | gtcr |= GTCR_ADV_1000THDX; |
| 256 | |
| 257 | PHY_WRITE(sc, MII_100T2CR, gtcr); |
| 258 | } |
| 259 | } |
| 260 | PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG); |
| 261 | } |
| 262 | |
| 263 | if (waitfor) { |
| 264 | /* Wait 500ms for it to complete. */ |
| 265 | for (i = 0; i < 500; i++) { |
| 266 | if (PHY_READ(sc, MII_BMSR) & BMSR_ACOMP) |
| 267 | return (0); |
| 268 | delay(1000); |
| 269 | } |
| 270 | |
| 271 | /* |
| 272 | * Don't need to worry about clearing MIIF_DOINGAUTO. |
| 273 | * If that's set, a timeout is pending, and it will |
| 274 | * clear the flag. |
| 275 | */ |
| 276 | return (EIO); |
| 277 | } |
| 278 | |
| 279 | /* |
| 280 | * Just let it finish asynchronously. This is for the benefit of |
| 281 | * the tick handler driving autonegotiation. Don't want 500ms |
| 282 | * delays all the time while the system is running! |
| 283 | */ |
| 284 | if (sc->mii_flags & MIIF_AUTOTSLEEP) { |
| 285 | sc->mii_flags |= MIIF_DOINGAUTO; |
| 286 | tsleep(&sc->mii_flags, PZERO, "miiaut" , hz >> 1); |
| 287 | mii_phy_auto_timeout(sc); |
| 288 | } else if ((sc->mii_flags & MIIF_DOINGAUTO) == 0) { |
| 289 | sc->mii_flags |= MIIF_DOINGAUTO; |
| 290 | callout_reset(&sc->mii_nway_ch, hz >> 1, |
| 291 | mii_phy_auto_timeout, sc); |
| 292 | } |
| 293 | return (EJUSTRETURN); |
| 294 | } |
| 295 | |
| 296 | static void |
| 297 | mii_phy_auto_timeout(void *arg) |
| 298 | { |
| 299 | struct mii_softc *sc = arg; |
| 300 | int s; |
| 301 | |
| 302 | if (!device_is_active(sc->mii_dev)) |
| 303 | return; |
| 304 | |
| 305 | s = splnet(); |
| 306 | sc->mii_flags &= ~MIIF_DOINGAUTO; |
| 307 | |
| 308 | /* Update the media status. */ |
| 309 | (void) PHY_SERVICE(sc, sc->mii_pdata, MII_POLLSTAT); |
| 310 | splx(s); |
| 311 | } |
| 312 | |
| 313 | int |
| 314 | mii_phy_tick(struct mii_softc *sc) |
| 315 | { |
| 316 | struct mii_data *mii = sc->mii_pdata; |
| 317 | struct ifmedia_entry *ife = mii->mii_media.ifm_cur; |
| 318 | int reg; |
| 319 | |
| 320 | /* Just bail now if the interface is down. */ |
| 321 | if ((mii->mii_ifp->if_flags & IFF_UP) == 0) |
| 322 | return (EJUSTRETURN); |
| 323 | |
| 324 | /* |
| 325 | * If we're not doing autonegotiation, we don't need to do |
| 326 | * any extra work here. However, we need to check the link |
| 327 | * status so we can generate an announcement by returning |
| 328 | * with 0 if the status changes. |
| 329 | */ |
| 330 | if ((IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) && |
| 331 | (IFM_SUBTYPE(ife->ifm_media) != IFM_1000_T)) { |
| 332 | /* |
| 333 | * Reset autonegotiation timer to 0 just to make sure |
| 334 | * the future autonegotiation start with 0. |
| 335 | */ |
| 336 | sc->mii_ticks = 0; |
| 337 | return (0); |
| 338 | } |
| 339 | |
| 340 | /* Read the status register twice; BMSR_LINK is latch-low. */ |
| 341 | reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR); |
| 342 | if (reg & BMSR_LINK) { |
| 343 | /* |
| 344 | * Reset autonegotiation timer to 0 in case the link |
| 345 | * goes down in the next tick. |
| 346 | */ |
| 347 | sc->mii_ticks = 0; |
| 348 | /* See above. */ |
| 349 | return (0); |
| 350 | } |
| 351 | |
| 352 | /* |
| 353 | * mii_ticks == 0 means it's the first tick after changing the media or |
| 354 | * the link became down since the last tick (see above), so return with |
| 355 | * 0 to update the status. |
| 356 | */ |
| 357 | if (sc->mii_ticks++ == 0) |
| 358 | return (0); |
| 359 | |
| 360 | /* |
| 361 | * Only retry autonegotiation every N seconds. |
| 362 | */ |
| 363 | KASSERT(sc->mii_anegticks != 0); |
| 364 | if (sc->mii_ticks <= sc->mii_anegticks) |
| 365 | return (EJUSTRETURN); |
| 366 | |
| 367 | PHY_RESET(sc); |
| 368 | |
| 369 | if (mii_phy_auto(sc, 0) == EJUSTRETURN) |
| 370 | return (EJUSTRETURN); |
| 371 | |
| 372 | /* |
| 373 | * Might need to generate a status message if autonegotiation |
| 374 | * failed. |
| 375 | */ |
| 376 | return (0); |
| 377 | } |
| 378 | |
| 379 | void |
| 380 | mii_phy_reset(struct mii_softc *sc) |
| 381 | { |
| 382 | int reg, i; |
| 383 | |
| 384 | if (sc->mii_flags & MIIF_NOISOLATE) |
| 385 | reg = BMCR_RESET; |
| 386 | else |
| 387 | reg = BMCR_RESET | BMCR_ISO; |
| 388 | PHY_WRITE(sc, MII_BMCR, reg); |
| 389 | |
| 390 | /* Wait another 100ms for it to complete. */ |
| 391 | for (i = 0; i < 100; i++) { |
| 392 | reg = PHY_READ(sc, MII_BMCR); |
| 393 | if ((reg & BMCR_RESET) == 0) |
| 394 | break; |
| 395 | delay(1000); |
| 396 | } |
| 397 | |
| 398 | if (sc->mii_inst != 0 && ((sc->mii_flags & MIIF_NOISOLATE) == 0)) |
| 399 | PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); |
| 400 | } |
| 401 | |
| 402 | void |
| 403 | mii_phy_down(struct mii_softc *sc) |
| 404 | { |
| 405 | |
| 406 | if (sc->mii_flags & MIIF_DOINGAUTO) { |
| 407 | sc->mii_flags &= ~MIIF_DOINGAUTO; |
| 408 | callout_stop(&sc->mii_nway_ch); |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | void |
| 413 | mii_phy_status(struct mii_softc *sc) |
| 414 | { |
| 415 | |
| 416 | PHY_STATUS(sc); |
| 417 | } |
| 418 | |
| 419 | void |
| 420 | mii_phy_update(struct mii_softc *sc, int cmd) |
| 421 | { |
| 422 | struct mii_data *mii = sc->mii_pdata; |
| 423 | |
| 424 | if (sc->mii_media_active != mii->mii_media_active || |
| 425 | sc->mii_media_status != mii->mii_media_status || |
| 426 | cmd == MII_MEDIACHG) { |
| 427 | mii_phy_statusmsg(sc); |
| 428 | (*mii->mii_statchg)(mii->mii_ifp); |
| 429 | sc->mii_media_active = mii->mii_media_active; |
| 430 | sc->mii_media_status = mii->mii_media_status; |
| 431 | } |
| 432 | } |
| 433 | |
| 434 | static void |
| 435 | mii_phy_statusmsg(struct mii_softc *sc) |
| 436 | { |
| 437 | struct mii_data *mii = sc->mii_pdata; |
| 438 | struct ifnet *ifp = mii->mii_ifp; |
| 439 | |
| 440 | if (mii->mii_media_status & IFM_AVALID) { |
| 441 | if (mii->mii_media_status & IFM_ACTIVE) |
| 442 | if_link_state_change(ifp, LINK_STATE_UP); |
| 443 | else |
| 444 | if_link_state_change(ifp, LINK_STATE_DOWN); |
| 445 | } else |
| 446 | if_link_state_change(ifp, LINK_STATE_UNKNOWN); |
| 447 | |
| 448 | ifp->if_baudrate = ifmedia_baudrate(mii->mii_media_active); |
| 449 | } |
| 450 | |
| 451 | /* |
| 452 | * Initialize generic PHY media based on BMSR, called when a PHY is |
| 453 | * attached. We expect to be set up to print a comma-separated list |
| 454 | * of media names. Does not print a newline. |
| 455 | */ |
| 456 | void |
| 457 | mii_phy_add_media(struct mii_softc *sc) |
| 458 | { |
| 459 | struct mii_data *mii = sc->mii_pdata; |
| 460 | device_t self = sc->mii_dev; |
| 461 | const char *sep = "" ; |
| 462 | int fdx = 0; |
| 463 | |
| 464 | #define ADD(m, c) ifmedia_add(&mii->mii_media, (m), (c), NULL) |
| 465 | #define PRINT(n) aprint_normal("%s%s", sep, (n)); sep = ", " |
| 466 | |
| 467 | if ((sc->mii_flags & MIIF_NOISOLATE) == 0) |
| 468 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst), |
| 469 | MII_MEDIA_NONE); |
| 470 | |
| 471 | /* |
| 472 | * There are different interpretations for the bits in |
| 473 | * HomePNA PHYs. And there is really only one media type |
| 474 | * that is supported. |
| 475 | */ |
| 476 | if (sc->mii_flags & MIIF_IS_HPNA) { |
| 477 | if (sc->mii_capabilities & BMSR_10THDX) { |
| 478 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_HPNA_1, 0, |
| 479 | sc->mii_inst), |
| 480 | MII_MEDIA_10_T); |
| 481 | PRINT("HomePNA1" ); |
| 482 | } |
| 483 | goto out; |
| 484 | } |
| 485 | |
| 486 | if (sc->mii_capabilities & BMSR_10THDX) { |
| 487 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst), |
| 488 | MII_MEDIA_10_T); |
| 489 | PRINT("10baseT" ); |
| 490 | } |
| 491 | if (sc->mii_capabilities & BMSR_10TFDX) { |
| 492 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst), |
| 493 | MII_MEDIA_10_T_FDX); |
| 494 | PRINT("10baseT-FDX" ); |
| 495 | fdx = 1; |
| 496 | } |
| 497 | if (sc->mii_capabilities & BMSR_100TXHDX) { |
| 498 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst), |
| 499 | MII_MEDIA_100_TX); |
| 500 | PRINT("100baseTX" ); |
| 501 | } |
| 502 | if (sc->mii_capabilities & BMSR_100TXFDX) { |
| 503 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst), |
| 504 | MII_MEDIA_100_TX_FDX); |
| 505 | PRINT("100baseTX-FDX" ); |
| 506 | fdx = 1; |
| 507 | } |
| 508 | if (sc->mii_capabilities & BMSR_100T4) { |
| 509 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, 0, sc->mii_inst), |
| 510 | MII_MEDIA_100_T4); |
| 511 | PRINT("100baseT4" ); |
| 512 | } |
| 513 | |
| 514 | if (sc->mii_extcapabilities & EXTSR_MEDIAMASK) { |
| 515 | /* |
| 516 | * XXX Right now only handle 1000SX and 1000TX. Need |
| 517 | * XXX to handle 1000LX and 1000CX some how. |
| 518 | * |
| 519 | * Note since it can take 5 seconds to auto-negotiate |
| 520 | * a gigabit link, we make anegticks 10 seconds for |
| 521 | * all the gigabit media types. |
| 522 | */ |
| 523 | if (sc->mii_extcapabilities & EXTSR_1000XHDX) { |
| 524 | sc->mii_anegticks = MII_ANEGTICKS_GIGE; |
| 525 | sc->mii_flags |= MIIF_IS_1000X; |
| 526 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0, |
| 527 | sc->mii_inst), MII_MEDIA_1000_X); |
| 528 | PRINT("1000baseSX" ); |
| 529 | } |
| 530 | if (sc->mii_extcapabilities & EXTSR_1000XFDX) { |
| 531 | sc->mii_anegticks = MII_ANEGTICKS_GIGE; |
| 532 | sc->mii_flags |= MIIF_IS_1000X; |
| 533 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX, |
| 534 | sc->mii_inst), MII_MEDIA_1000_X_FDX); |
| 535 | PRINT("1000baseSX-FDX" ); |
| 536 | fdx = 1; |
| 537 | } |
| 538 | |
| 539 | /* |
| 540 | * 1000baseT media needs to be able to manipulate |
| 541 | * master/slave mode. We set IFM_ETH_MASTER in |
| 542 | * the "don't care mask" and filter it out when |
| 543 | * the media is set. |
| 544 | * |
| 545 | * All 1000baseT PHYs have a 1000baseT control register. |
| 546 | */ |
| 547 | if (sc->mii_extcapabilities & EXTSR_1000THDX) { |
| 548 | sc->mii_anegticks = MII_ANEGTICKS_GIGE; |
| 549 | sc->mii_flags |= MIIF_HAVE_GTCR; |
| 550 | mii->mii_media.ifm_mask |= IFM_ETH_MASTER; |
| 551 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0, |
| 552 | sc->mii_inst), MII_MEDIA_1000_T); |
| 553 | PRINT("1000baseT" ); |
| 554 | } |
| 555 | if (sc->mii_extcapabilities & EXTSR_1000TFDX) { |
| 556 | sc->mii_anegticks = MII_ANEGTICKS_GIGE; |
| 557 | sc->mii_flags |= MIIF_HAVE_GTCR; |
| 558 | mii->mii_media.ifm_mask |= IFM_ETH_MASTER; |
| 559 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX, |
| 560 | sc->mii_inst), MII_MEDIA_1000_T_FDX); |
| 561 | PRINT("1000baseT-FDX" ); |
| 562 | fdx = 1; |
| 563 | } |
| 564 | } |
| 565 | |
| 566 | if (sc->mii_capabilities & BMSR_ANEG) { |
| 567 | ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst), |
| 568 | MII_NMEDIA); /* intentionally invalid index */ |
| 569 | PRINT("auto" ); |
| 570 | } |
| 571 | #undef ADD |
| 572 | #undef PRINT |
| 573 | if (fdx != 0 && (sc->mii_flags & MIIF_DOPAUSE)) |
| 574 | mii->mii_media.ifm_mask |= IFM_ETH_FMASK; |
| 575 | out: |
| 576 | if (!pmf_device_register(self, NULL, mii_phy_resume)) { |
| 577 | aprint_normal("\n" ); |
| 578 | aprint_error_dev(self, "couldn't establish power handler" ); |
| 579 | } |
| 580 | } |
| 581 | |
| 582 | void |
| 583 | mii_phy_delete_media(struct mii_softc *sc) |
| 584 | { |
| 585 | struct mii_data *mii = sc->mii_pdata; |
| 586 | |
| 587 | ifmedia_delete_instance(&mii->mii_media, sc->mii_inst); |
| 588 | } |
| 589 | |
| 590 | int |
| 591 | mii_phy_activate(device_t self, enum devact act) |
| 592 | { |
| 593 | switch (act) { |
| 594 | case DVACT_DEACTIVATE: |
| 595 | /* XXX Invalidate parent's media setting? */ |
| 596 | return 0; |
| 597 | default: |
| 598 | return EOPNOTSUPP; |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | /* ARGSUSED1 */ |
| 603 | int |
| 604 | mii_phy_detach(device_t self, int flags) |
| 605 | { |
| 606 | struct mii_softc *sc = device_private(self); |
| 607 | |
| 608 | /* XXX Invalidate parent's media setting? */ |
| 609 | |
| 610 | if (sc->mii_flags & MIIF_DOINGAUTO) |
| 611 | callout_halt(&sc->mii_nway_ch, NULL); |
| 612 | |
| 613 | callout_destroy(&sc->mii_nway_ch); |
| 614 | |
| 615 | mii_phy_delete_media(sc); |
| 616 | LIST_REMOVE(sc, mii_list); |
| 617 | |
| 618 | return (0); |
| 619 | } |
| 620 | |
| 621 | const struct mii_phydesc * |
| 622 | mii_phy_match(const struct mii_attach_args *ma, const struct mii_phydesc *mpd) |
| 623 | { |
| 624 | |
| 625 | for (; mpd->mpd_name != NULL; mpd++) { |
| 626 | if (MII_OUI(ma->mii_id1, ma->mii_id2) == mpd->mpd_oui && |
| 627 | MII_MODEL(ma->mii_id2) == mpd->mpd_model) |
| 628 | return (mpd); |
| 629 | } |
| 630 | return (NULL); |
| 631 | } |
| 632 | |
| 633 | /* |
| 634 | * Return the flow control status flag from MII_ANAR & MII_ANLPAR. |
| 635 | */ |
| 636 | u_int |
| 637 | mii_phy_flowstatus(struct mii_softc *sc) |
| 638 | { |
| 639 | u_int anar, anlpar; |
| 640 | |
| 641 | if ((sc->mii_flags & MIIF_DOPAUSE) == 0) |
| 642 | return (0); |
| 643 | |
| 644 | anar = PHY_READ(sc, MII_ANAR); |
| 645 | anlpar = PHY_READ(sc, MII_ANLPAR); |
| 646 | |
| 647 | /* For 1000baseX, the bits are in a different location. */ |
| 648 | if (sc->mii_flags & MIIF_IS_1000X) { |
| 649 | anar <<= 3; |
| 650 | anlpar <<= 3; |
| 651 | } |
| 652 | |
| 653 | if ((anar & ANAR_PAUSE_SYM) & (anlpar & ANLPAR_PAUSE_SYM)) |
| 654 | return (IFM_FLOW|IFM_ETH_TXPAUSE|IFM_ETH_RXPAUSE); |
| 655 | |
| 656 | if ((anar & ANAR_PAUSE_SYM) == 0) { |
| 657 | if ((anar & ANAR_PAUSE_ASYM) && |
| 658 | ((anlpar & ANLPAR_PAUSE_TOWARDS) == ANLPAR_PAUSE_TOWARDS)) |
| 659 | return (IFM_FLOW|IFM_ETH_TXPAUSE); |
| 660 | else |
| 661 | return (0); |
| 662 | } |
| 663 | |
| 664 | if ((anar & ANAR_PAUSE_ASYM) == 0) { |
| 665 | if (anlpar & ANLPAR_PAUSE_SYM) |
| 666 | return (IFM_FLOW|IFM_ETH_TXPAUSE|IFM_ETH_RXPAUSE); |
| 667 | else |
| 668 | return (0); |
| 669 | } |
| 670 | |
| 671 | switch ((anlpar & ANLPAR_PAUSE_TOWARDS)) { |
| 672 | case ANLPAR_PAUSE_NONE: |
| 673 | return (0); |
| 674 | |
| 675 | case ANLPAR_PAUSE_ASYM: |
| 676 | return (IFM_FLOW|IFM_ETH_RXPAUSE); |
| 677 | |
| 678 | default: |
| 679 | return (IFM_FLOW|IFM_ETH_RXPAUSE|IFM_ETH_TXPAUSE); |
| 680 | } |
| 681 | /* NOTREACHED */ |
| 682 | } |
| 683 | |
| 684 | bool |
| 685 | mii_phy_resume(device_t dv, const pmf_qual_t *qual) |
| 686 | { |
| 687 | struct mii_softc *sc = device_private(dv); |
| 688 | |
| 689 | PHY_RESET(sc); |
| 690 | return PHY_SERVICE(sc, sc->mii_pdata, MII_MEDIACHG) == 0; |
| 691 | } |
| 692 | |
| 693 | |
| 694 | /* |
| 695 | * Given an ifmedia word, return the corresponding ANAR value. |
| 696 | */ |
| 697 | int |
| 698 | mii_anar(int media) |
| 699 | { |
| 700 | int rv; |
| 701 | |
| 702 | #ifdef DIAGNOSTIC |
| 703 | if (/* media < 0 || */ media >= MII_NMEDIA) |
| 704 | panic("mii_anar" ); |
| 705 | #endif |
| 706 | |
| 707 | rv = mii_media_table[media].mm_anar; |
| 708 | |
| 709 | return rv; |
| 710 | } |
| 711 | |