src/libs/compat/freebsd_network/fbsd_mii_physubr.c

   1 /*      $NetBSD: mii_physubr.c,v 1.5 1999/08/03 19:41:49 drochner 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 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD: src/sys/dev/mii/mii_physubr.c,v 1.22.2.2 2006/07/29 08:30:12 oleg Exp $");
  35
  36 /*
  37  * Subroutines common to all PHYs.
  38  */
  39
  40 #include <sys/param.h>
  41 #include <sys/systm.h>
  42 #include <sys/kernel.h>
  43 #include <sys/socket.h>
  44 #include <sys/errno.h>
  45 #include <sys/module.h>
  46 #include <sys/bus.h>
  47
  48 #include <net/if.h>
  49 #include <net/if_media.h>
  50
  51 #include <dev/mii/mii.h>
  52 #include <dev/mii/miivar.h>
  53
  54 #include "miibus_if.h"
  55
  56 /*
  57  * Media to register setting conversion table.  Order matters.
  58  */
  59 static const struct mii_media mii_media_table[MII_NMEDIA] = {
  60         /* None */
  61         { BMCR_ISO,             ANAR_CSMA,
  62           0, },
  63
  64         /* 10baseT */
  65         { BMCR_S10,             ANAR_CSMA|ANAR_10,
  66           0, },
  67
  68         /* 10baseT-FDX */
  69         { BMCR_S10|BMCR_FDX,    ANAR_CSMA|ANAR_10_FD,
  70           0, },
  71
  72         /* 100baseT4 */
  73         { BMCR_S100,            ANAR_CSMA|ANAR_T4,
  74           0, },
  75
  76         /* 100baseTX */
  77         { BMCR_S100,            ANAR_CSMA|ANAR_TX,
  78           0, },
  79
  80         /* 100baseTX-FDX */
  81         { BMCR_S100|BMCR_FDX,   ANAR_CSMA|ANAR_TX_FD,
  82           0, },
  83
  84         /* 1000baseX */
  85         { BMCR_S1000,           ANAR_CSMA,
  86           0, },
  87
  88         /* 1000baseX-FDX */
  89         { BMCR_S1000|BMCR_FDX,  ANAR_CSMA,
  90           0, },
  91
  92         /* 1000baseT */
  93         { BMCR_S1000,           ANAR_CSMA,
  94           GTCR_ADV_1000THDX },
  95
  96         /* 1000baseT-FDX */
  97         { BMCR_S1000,           ANAR_CSMA,
  98           GTCR_ADV_1000TFDX },
  99 };
 100
 101 void
 102 mii_phy_setmedia(struct mii_softc *sc)
 103 {
 104         struct mii_data *mii = sc->mii_pdata;
 105         struct ifmedia_entry *ife = mii->mii_media.ifm_cur;
 106         int bmcr, anar, gtcr;
 107
 108         if (IFM_SUBTYPE(ife->ifm_media) == IFM_AUTO) {
 109                 /*
 110                  * Force renegotiation if MIIF_DOPAUSE or MIIF_FORCEANEG.
 111                  * The former is necessary as we might switch from flow-
 112                  * control advertisement being off to on or vice versa.
 113                  */
 114                 if ((PHY_READ(sc, MII_BMCR) & BMCR_AUTOEN) == 0 ||
 115                     (sc->mii_flags & (MIIF_DOPAUSE | MIIF_FORCEANEG)) != 0)
 116                         (void)mii_phy_auto(sc);
 117                 return;
 118         }
 119
 120         /*
 121          * Table index is stored in the media entry.
 122          */
 123
 124         KASSERT(ife->ifm_data >=0 && ife->ifm_data < MII_NMEDIA,
 125             ("invalid ife->ifm_data (0x%x) in mii_phy_setmedia",
 126             ife->ifm_data));
 127
 128         anar = mii_media_table[ife->ifm_data].mm_anar;
 129         bmcr = mii_media_table[ife->ifm_data].mm_bmcr;
 130         gtcr = mii_media_table[ife->ifm_data].mm_gtcr;
 131
 132         if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) {
 133                 gtcr |= GTCR_MAN_MS;
 134                 if ((ife->ifm_media & IFM_ETH_MASTER) != 0)
 135                         gtcr |= GTCR_ADV_MS;
 136         }
 137
 138         if ((ife->ifm_media & IFM_FDX) != 0 &&
 139             ((ife->ifm_media & IFM_FLOW) != 0 ||
 140             (sc->mii_flags & MIIF_FORCEPAUSE) != 0)) {
 141                 if ((sc->mii_flags & MIIF_IS_1000X) != 0)
 142                         anar |= ANAR_X_PAUSE_TOWARDS;
 143                 else {
 144                         anar |= ANAR_FC;
 145                         /* XXX Only 1000BASE-T has PAUSE_ASYM? */
 146                         if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0 &&
 147                             (sc->mii_extcapabilities &
 148                             (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0)
 149                                 anar |= ANAR_X_PAUSE_ASYM;
 150                 }
 151         }
 152
 153         PHY_WRITE(sc, MII_ANAR, anar);
 154         PHY_WRITE(sc, MII_BMCR, bmcr);
 155         if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0)
 156                 PHY_WRITE(sc, MII_100T2CR, gtcr);
 157 }
 158
 159 int
 160 mii_phy_auto(struct mii_softc *sc)
 161 {
 162         struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
 163         int anar, gtcr;
 164
 165         /*
 166          * Check for 1000BASE-X.  Autonegotiation is a bit
 167          * different on such devices.
 168          */
 169         if ((sc->mii_flags & MIIF_IS_1000X) != 0) {
 170                 anar = 0;
 171                 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0)
 172                         anar |= ANAR_X_FD;
 173                 if ((sc->mii_extcapabilities & EXTSR_1000XHDX) != 0)
 174                         anar |= ANAR_X_HD;
 175
 176                 if ((ife->ifm_media & IFM_FLOW) != 0 ||
 177                     (sc->mii_flags & MIIF_FORCEPAUSE) != 0)
 178                         anar |= ANAR_X_PAUSE_TOWARDS;
 179                 PHY_WRITE(sc, MII_ANAR, anar);
 180         } else {
 181                 anar = BMSR_MEDIA_TO_ANAR(sc->mii_capabilities) |
 182                     ANAR_CSMA;
 183                 if ((ife->ifm_media & IFM_FLOW) != 0 ||
 184                     (sc->mii_flags & MIIF_FORCEPAUSE) != 0) {
 185                         if ((sc->mii_capabilities &
 186                             (BMSR_10TFDX | BMSR_100TXFDX)) != 0)
 187                                 anar |= ANAR_FC;
 188                         /* XXX Only 1000BASE-T has PAUSE_ASYM? */
 189                         if (((sc->mii_flags & MIIF_HAVE_GTCR) != 0) &&
 190                             (sc->mii_extcapabilities &
 191                             (EXTSR_1000THDX | EXTSR_1000TFDX)) != 0)
 192                                 anar |= ANAR_X_PAUSE_ASYM;
 193                 }
 194                 PHY_WRITE(sc, MII_ANAR, anar);
 195                 if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) {
 196                         gtcr = 0;
 197                         if ((sc->mii_extcapabilities & EXTSR_1000TFDX) != 0)
 198                                 gtcr |= GTCR_ADV_1000TFDX;
 199                         if ((sc->mii_extcapabilities & EXTSR_1000THDX) != 0)
 200                                 gtcr |= GTCR_ADV_1000THDX;
 201                         PHY_WRITE(sc, MII_100T2CR, gtcr);
 202                 }
 203         }
 204         PHY_WRITE(sc, MII_BMCR, BMCR_AUTOEN | BMCR_STARTNEG);
 205         return (EJUSTRETURN);
 206 }
 207
 208 int
 209 mii_phy_tick(struct mii_softc *sc)
 210 {
 211         struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
 212         struct ifnet *ifp = sc->mii_pdata->mii_ifp;
 213         int reg;
 214
 215         /* Just bail now if the interface is down. */
 216         if ((ifp->if_flags & IFF_UP) == 0)
 217                 return (EJUSTRETURN);
 218
 219         /*
 220          * If we're not doing autonegotiation, we don't need to do
 221          * any extra work here.  However, we need to check the link
 222          * status so we can generate an announcement if the status
 223          * changes.
 224          */
 225         if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) {
 226                 sc->mii_ticks = 0;      /* reset autonegotiation timer. */
 227                 return (0);
 228         }
 229
 230         /* Read the status register twice; BMSR_LINK is latch-low. */
 231         reg = PHY_READ(sc, MII_BMSR) | PHY_READ(sc, MII_BMSR);
 232         if ((reg & BMSR_LINK) != 0) {
 233                 sc->mii_ticks = 0;      /* reset autonegotiation timer. */
 234                 /* See above. */
 235                 return (0);
 236         }
 237
 238         /* Announce link loss right after it happens */
 239         if (sc->mii_ticks++ == 0)
 240                 return (0);
 241
 242         /* XXX: use default value if phy driver did not set mii_anegticks */
 243         if (sc->mii_anegticks == 0)
 244                 sc->mii_anegticks = MII_ANEGTICKS_GIGE;
 245
 246         /* Only retry autonegotiation every mii_anegticks ticks. */
 247         if (sc->mii_ticks <= sc->mii_anegticks)
 248                 return (EJUSTRETURN);
 249
 250         sc->mii_ticks = 0;
 251         PHY_RESET(sc);
 252         mii_phy_auto(sc);
 253         return (0);
 254 }
 255
 256 void
 257 mii_phy_reset(struct mii_softc *sc)
 258 {
 259         struct ifmedia_entry *ife = sc->mii_pdata->mii_media.ifm_cur;
 260         int i, reg;
 261
 262         if ((sc->mii_flags & MIIF_NOISOLATE) != 0)
 263                 reg = BMCR_RESET;
 264         else
 265                 reg = BMCR_RESET | BMCR_ISO;
 266         PHY_WRITE(sc, MII_BMCR, reg);
 267
 268         /* Wait 100ms for it to complete. */
 269         for (i = 0; i < 100; i++) {
 270                 reg = PHY_READ(sc, MII_BMCR);
 271                 if ((reg & BMCR_RESET) == 0)
 272                         break;
 273                 DELAY(1000);
 274         }
 275
 276         /* NB: a PHY may default to being powered down and/or isolated. */
 277         reg &= ~(BMCR_PDOWN | BMCR_ISO);
 278         if ((sc->mii_flags & MIIF_NOISOLATE) == 0 &&
 279             ((ife == NULL && sc->mii_inst != 0) ||
 280             (ife != NULL && IFM_INST(ife->ifm_media) != sc->mii_inst)))
 281                 reg |= BMCR_ISO;
 282         if (PHY_READ(sc, MII_BMCR) != reg)
 283                 PHY_WRITE(sc, MII_BMCR, reg);
 284 }
 285
 286 void
 287 mii_phy_down(struct mii_softc *sc)
 288 {
 289
 290 }
 291
 292 void
 293 mii_phy_update(struct mii_softc *sc, int cmd)
 294 {
 295         struct mii_data *mii = sc->mii_pdata;
 296
 297         if (sc->mii_media_active != mii->mii_media_active ||
 298             cmd == MII_MEDIACHG) {
 299                 MIIBUS_STATCHG(sc->mii_dev);
 300                 sc->mii_media_active = mii->mii_media_active;
 301         }
 302         if (sc->mii_media_status != mii->mii_media_status) {
 303                 MIIBUS_LINKCHG(sc->mii_dev);
 304                 sc->mii_media_status = mii->mii_media_status;
 305         }
 306 }
 307
 308 /*
 309  * Given an ifmedia word, return the corresponding ANAR value.
 310  */
 311 int
 312 mii_anar(int media)
 313 {
 314         int rv;
 315
 316         switch (media & (IFM_TMASK|IFM_NMASK|IFM_FDX)) {
 317         case IFM_ETHER|IFM_10_T:
 318                 rv = ANAR_10|ANAR_CSMA;
 319                 break;
 320         case IFM_ETHER|IFM_10_T|IFM_FDX:
 321                 rv = ANAR_10_FD|ANAR_CSMA;
 322                 break;
 323         case IFM_ETHER|IFM_100_TX:
 324                 rv = ANAR_TX|ANAR_CSMA;
 325                 break;
 326         case IFM_ETHER|IFM_100_TX|IFM_FDX:
 327                 rv = ANAR_TX_FD|ANAR_CSMA;
 328                 break;
 329         case IFM_ETHER|IFM_100_T4:
 330                 rv = ANAR_T4|ANAR_CSMA;
 331                 break;
 332         default:
 333                 rv = 0;
 334                 break;
 335         }
 336
 337         return (rv);
 338 }
 339
 340 /*
 341  * Given a BMCR value, return the corresponding ifmedia word.
 342  */
 343 int
 344 mii_media_from_bmcr(int bmcr)
 345 {
 346         int rv = IFM_ETHER;
 347
 348         if (bmcr & BMCR_S100)
 349                 rv |= IFM_100_TX;
 350         else
 351                 rv |= IFM_10_T;
 352         if (bmcr & BMCR_FDX)
 353                 rv |= IFM_FDX;
 354
 355         return (rv);
 356 }
 357
 358 /*
 359  * Initialize generic PHY media based on BMSR, called when a PHY is
 360  * attached.  We expect to be set up to print a comma-separated list
 361  * of media names.  Does not print a newline.
 362  */
 363 void
 364 mii_phy_add_media(struct mii_softc *sc)
 365 {
 366         struct mii_data *mii = sc->mii_pdata;
 367         const char *sep = "";
 368         int fdx = 0;
 369
 370         /*
 371          * Set the autonegotiation timer for 10/100 media.  Gigabit media is
 372          * handled below.
 373          */
 374         sc->mii_anegticks = MII_ANEGTICKS;
 375
 376 #define ADD(m, c)       ifmedia_add(&mii->mii_media, (m), (c), NULL)
 377 #define PRINT(s)        printf("%s%s", sep, s); sep = ", "
 378
 379         if ((sc->mii_flags & MIIF_NOISOLATE) == 0) {
 380                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_NONE, 0, sc->mii_inst),
 381                     MII_MEDIA_NONE);
 382                 PRINT("none");
 383         }
 384
 385         /*
 386          * There are different interpretations for the bits in
 387          * HomePNA PHYs.  And there is really only one media type
 388          * that is supported.
 389          */
 390         if ((sc->mii_flags & MIIF_IS_HPNA) != 0) {
 391                 if ((sc->mii_capabilities & BMSR_10THDX) != 0) {
 392                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_HPNA_1, 0,
 393                             sc->mii_inst), MII_MEDIA_10_T);
 394                         PRINT("HomePNA1");
 395                 }
 396                 return;
 397         }
 398
 399         if ((sc->mii_capabilities & BMSR_10THDX) != 0) {
 400                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, 0, sc->mii_inst),
 401                     MII_MEDIA_10_T);
 402                 PRINT("10baseT");
 403         }
 404         if ((sc->mii_capabilities & BMSR_10TFDX) != 0) {
 405                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T, IFM_FDX, sc->mii_inst),
 406                     MII_MEDIA_10_T_FDX);
 407                 PRINT("10baseT-FDX");
 408                 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
 409                     (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
 410                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_10_T,
 411                             IFM_FDX | IFM_FLOW, sc->mii_inst),
 412                             MII_MEDIA_10_T_FDX);
 413                         PRINT("10baseT-FDX-flow");
 414                 }
 415                 fdx = 1;
 416         }
 417         if ((sc->mii_capabilities & BMSR_100TXHDX) != 0) {
 418                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, 0, sc->mii_inst),
 419                     MII_MEDIA_100_TX);
 420                 PRINT("100baseTX");
 421         }
 422         if ((sc->mii_capabilities & BMSR_100TXFDX) != 0) {
 423                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX, IFM_FDX, sc->mii_inst),
 424                     MII_MEDIA_100_TX_FDX);
 425                 PRINT("100baseTX-FDX");
 426                 if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
 427                     (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
 428                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_TX,
 429                             IFM_FDX | IFM_FLOW, sc->mii_inst),
 430                             MII_MEDIA_100_TX_FDX);
 431                         PRINT("100baseTX-FDX-flow");
 432                 }
 433                 fdx = 1;
 434         }
 435         if ((sc->mii_capabilities & BMSR_100T4) != 0) {
 436                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_100_T4, 0, sc->mii_inst),
 437                     MII_MEDIA_100_T4);
 438                 PRINT("100baseT4");
 439         }
 440
 441         if ((sc->mii_extcapabilities & EXTSR_MEDIAMASK) != 0) {
 442                 /*
 443                  * XXX Right now only handle 1000SX and 1000TX.  Need
 444                  * XXX to handle 1000LX and 1000CX somehow.
 445                  */
 446                 if ((sc->mii_extcapabilities & EXTSR_1000XHDX) != 0) {
 447                         sc->mii_anegticks = MII_ANEGTICKS_GIGE;
 448                         sc->mii_flags |= MIIF_IS_1000X;
 449                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, 0,
 450                             sc->mii_inst), MII_MEDIA_1000_X);
 451                         PRINT("1000baseSX");
 452                 }
 453                 if ((sc->mii_extcapabilities & EXTSR_1000XFDX) != 0) {
 454                         sc->mii_anegticks = MII_ANEGTICKS_GIGE;
 455                         sc->mii_flags |= MIIF_IS_1000X;
 456                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX, IFM_FDX,
 457                             sc->mii_inst), MII_MEDIA_1000_X_FDX);
 458                         PRINT("1000baseSX-FDX");
 459                         if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
 460                             (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
 461                                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_SX,
 462                                     IFM_FDX | IFM_FLOW, sc->mii_inst),
 463                                     MII_MEDIA_1000_X_FDX);
 464                                 PRINT("1000baseSX-FDX-flow");
 465                         }
 466                         fdx = 1;
 467                 }
 468
 469                 /*
 470                  * 1000baseT media needs to be able to manipulate
 471                  * master/slave mode.
 472                  *
 473                  * All 1000baseT PHYs have a 1000baseT control register.
 474                  */
 475                 if ((sc->mii_extcapabilities & EXTSR_1000THDX) != 0) {
 476                         sc->mii_anegticks = MII_ANEGTICKS_GIGE;
 477                         sc->mii_flags |= MIIF_HAVE_GTCR;
 478                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, 0,
 479                             sc->mii_inst), MII_MEDIA_1000_T);
 480                         PRINT("1000baseT");
 481                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
 482                             IFM_ETH_MASTER, sc->mii_inst), MII_MEDIA_1000_T);
 483                         PRINT("1000baseT-master");
 484                 }
 485                 if ((sc->mii_extcapabilities & EXTSR_1000TFDX) != 0) {
 486                         sc->mii_anegticks = MII_ANEGTICKS_GIGE;
 487                         sc->mii_flags |= MIIF_HAVE_GTCR;
 488                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T, IFM_FDX,
 489                             sc->mii_inst), MII_MEDIA_1000_T_FDX);
 490                         PRINT("1000baseT-FDX");
 491                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
 492                             IFM_FDX | IFM_ETH_MASTER, sc->mii_inst),
 493                             MII_MEDIA_1000_T_FDX);
 494                         PRINT("1000baseT-FDX-master");
 495                         if ((sc->mii_flags & MIIF_DOPAUSE) != 0 &&
 496                             (sc->mii_flags & MIIF_NOMANPAUSE) == 0) {
 497                                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
 498                                     IFM_FDX | IFM_FLOW, sc->mii_inst),
 499                                     MII_MEDIA_1000_T_FDX);
 500                                 PRINT("1000baseT-FDX-flow");
 501                                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_1000_T,
 502                                     IFM_FDX | IFM_FLOW | IFM_ETH_MASTER,
 503                                     sc->mii_inst), MII_MEDIA_1000_T_FDX);
 504                                 PRINT("1000baseT-FDX-flow-master");
 505                         }
 506                         fdx = 1;
 507                 }
 508         }
 509
 510         if ((sc->mii_capabilities & BMSR_ANEG) != 0) {
 511                 /* intentionally invalid index */
 512                 ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, 0, sc->mii_inst),
 513                     MII_NMEDIA);
 514                 PRINT("auto");
 515                 if (fdx != 0 && (sc->mii_flags & MIIF_DOPAUSE) != 0) {
 516                         ADD(IFM_MAKEWORD(IFM_ETHER, IFM_AUTO, IFM_FLOW,
 517                             sc->mii_inst), MII_NMEDIA);
 518                         PRINT("auto-flow");
 519                 }
 520         }
 521 #undef ADD
 522 #undef PRINT
 523 }
 524
 525 int
 526 mii_phy_detach(device_t dev)
 527 {
 528         struct mii_softc *sc;
 529
 530         sc = device_get_softc(dev);
 531         mii_phy_down(sc);
 532         sc->mii_dev = NULL;
 533         LIST_REMOVE(sc, mii_list);
 534         return (0);
 535 }
 536
 537 const struct mii_phydesc *
 538 mii_phy_match_gen(const struct mii_attach_args *ma,
 539   const struct mii_phydesc *mpd, size_t len)
 540 {
 541
 542         for (; mpd->mpd_name != NULL;
 543             mpd = (const struct mii_phydesc *)((const char *)mpd + len)) {
 544                 if (MII_OUI(ma->mii_id1, ma->mii_id2) == mpd->mpd_oui &&
 545                     MII_MODEL(ma->mii_id2) == mpd->mpd_model)
 546                         return (mpd);
 547         }
 548         return (NULL);
 549 }
 550
 551 const struct mii_phydesc *
 552 mii_phy_match(const struct mii_attach_args *ma, const struct mii_phydesc *mpd)
 553 {
 554
 555         return (mii_phy_match_gen(ma, mpd, sizeof(struct mii_phydesc)));
 556 }
 557
 558 int
 559 mii_phy_dev_probe(device_t dev, const struct mii_phydesc *mpd, int mrv)
 560 {
 561
 562         mpd = mii_phy_match(device_get_ivars(dev), mpd);
 563         if (mpd != NULL) {
 564                 device_set_desc(dev, mpd->mpd_name);
 565                 return (mrv);
 566         }
 567         return (ENXIO);
 568 }
 569
 570 void
 571 mii_phy_dev_attach(device_t dev, u_int flags, const struct mii_phy_funcs *mpf,
 572     int add_media)
 573 {
 574         struct mii_softc *sc;
 575         struct mii_attach_args *ma;
 576         struct mii_data *mii;
 577
 578         sc = device_get_softc(dev);
 579         ma = device_get_ivars(dev);
 580         sc->mii_dev = device_get_parent(dev);
 581         mii = ma->mii_data;
 582         LIST_INSERT_HEAD(&mii->mii_phys, sc, mii_list);
 583
 584         sc->mii_flags = flags | miibus_get_flags(dev);
 585         sc->mii_mpd_oui = MII_OUI(ma->mii_id1, ma->mii_id2);
 586         sc->mii_mpd_model = MII_MODEL(ma->mii_id2);
 587         sc->mii_mpd_rev = MII_REV(ma->mii_id2);
 588         sc->mii_capmask = ma->mii_capmask;
 589         sc->mii_inst = mii->mii_instance++;
 590         sc->mii_phy = ma->mii_phyno;
 591         sc->mii_offset = ma->mii_offset;
 592         sc->mii_funcs = mpf;
 593         sc->mii_pdata = mii;
 594
 595         if (bootverbose)
 596                 device_printf(dev, "OUI 0x%06x, model 0x%04x, rev. %d\n",
 597                     sc->mii_mpd_oui, sc->mii_mpd_model, sc->mii_mpd_rev);
 598
 599         if (add_media == 0)
 600                 return;
 601
 602         PHY_RESET(sc);
 603
 604         sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask;
 605         if (sc->mii_capabilities & BMSR_EXTSTAT)
 606                 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR);
 607         device_printf(dev, " ");
 608         mii_phy_add_media(sc);
 609         printf("\n");
 610
 611         MIIBUS_MEDIAINIT(sc->mii_dev);
 612 }
 613
 614 /*
 615  * Return the flow control status flag from MII_ANAR & MII_ANLPAR.
 616  */
 617 u_int
 618 mii_phy_flowstatus(struct mii_softc *sc)
 619 {
 620         int anar, anlpar;
 621
 622         if ((sc->mii_flags & MIIF_DOPAUSE) == 0)
 623                 return (0);
 624
 625         anar = PHY_READ(sc, MII_ANAR);
 626         anlpar = PHY_READ(sc, MII_ANLPAR);
 627
 628         /*
 629          * Check for 1000BASE-X.  Autonegotiation is a bit
 630          * different on such devices.
 631          */
 632         if ((sc->mii_flags & MIIF_IS_1000X) != 0) {
 633                 anar <<= 3;
 634                 anlpar <<= 3;
 635         }
 636
 637         if ((anar & ANAR_PAUSE_SYM) != 0 && (anlpar & ANLPAR_PAUSE_SYM) != 0)
 638                 return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE);
 639
 640         if ((anar & ANAR_PAUSE_SYM) == 0) {
 641                 if ((anar & ANAR_PAUSE_ASYM) != 0 &&
 642                     (anlpar & ANLPAR_PAUSE_TOWARDS) != 0)
 643                         return (IFM_FLOW | IFM_ETH_TXPAUSE);
 644                 else
 645                         return (0);
 646         }
 647
 648         if ((anar & ANAR_PAUSE_ASYM) == 0) {
 649                 if ((anlpar & ANLPAR_PAUSE_SYM) != 0)
 650                         return (IFM_FLOW | IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE);
 651                 else
 652                         return (0);
 653         }
 654
 655         switch ((anlpar & ANLPAR_PAUSE_TOWARDS)) {
 656         case ANLPAR_PAUSE_NONE:
 657                 return (0);
 658         case ANLPAR_PAUSE_ASYM:
 659                 return (IFM_FLOW | IFM_ETH_RXPAUSE);
 660         default:
 661                 return (IFM_FLOW | IFM_ETH_RXPAUSE | IFM_ETH_TXPAUSE);
 662         }
 663         /* NOTREACHED */
 664 }