Date: Mon, 20 Oct 2014 07:27:34 +0000 (UTC) From: Pyun YongHyeon <yongari@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r273306 - stable/9/sys/dev/mii Message-ID: <201410200727.s9K7RYWQ069090@svn.freebsd.org>
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Author: yongari Date: Mon Oct 20 07:27:34 2014 New Revision: 273306 URL: https://svnweb.freebsd.org/changeset/base/273306 Log: MFC r271073: Do not blindly announce 1000baseT half-duplex capability in autonegotiation. Some controllers like cgem(4) do not support half-duplex at gigabit speeds. Modified: stable/9/sys/dev/mii/e1000phy.c Directory Properties: stable/9/sys/ (props changed) stable/9/sys/dev/ (props changed) Modified: stable/9/sys/dev/mii/e1000phy.c ============================================================================== --- stable/9/sys/dev/mii/e1000phy.c Mon Oct 20 07:25:57 2014 (r273305) +++ stable/9/sys/dev/mii/e1000phy.c Mon Oct 20 07:27:34 2014 (r273306) @@ -167,8 +167,12 @@ e1000phy_attach(device_t dev) PHY_RESET(sc); sc->mii_capabilities = PHY_READ(sc, MII_BMSR) & sc->mii_capmask; - if (sc->mii_capabilities & BMSR_EXTSTAT) + if (sc->mii_capabilities & BMSR_EXTSTAT) { sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); + if ((sc->mii_extcapabilities & + (EXTSR_1000TFDX | EXTSR_1000THDX)) != 0) + sc->mii_flags |= MIIF_HAVE_GTCR; + } device_printf(dev, " "); mii_phy_add_media(sc); printf("\n"); @@ -319,8 +323,7 @@ e1000phy_service(struct mii_softc *sc, s speed = 0; switch (IFM_SUBTYPE(ife->ifm_media)) { case IFM_1000_T: - if ((sc->mii_extcapabilities & - (EXTSR_1000TFDX | EXTSR_1000THDX)) == 0) + if ((sc->mii_flags & MIIF_HAVE_GTCR) == 0) return (EINVAL); speed = E1000_CR_SPEED_1000; break; @@ -357,10 +360,9 @@ e1000phy_service(struct mii_softc *sc, s if (IFM_SUBTYPE(ife->ifm_media) == IFM_1000_T) { gig |= E1000_1GCR_MS_ENABLE; - if ((ife->ifm_media & IFM_ETH_MASTER) != 0) + if ((ife->ifm_media & IFM_ETH_MASTER) != 0) gig |= E1000_1GCR_MS_VALUE; - } else if ((sc->mii_extcapabilities & - (EXTSR_1000TFDX | EXTSR_1000THDX)) != 0) + } else if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) gig = 0; PHY_WRITE(sc, E1000_1GCR, gig); PHY_WRITE(sc, E1000_AR, E1000_AR_SELECTOR_FIELD); @@ -491,9 +493,14 @@ e1000phy_mii_phy_auto(struct mii_softc * PHY_WRITE(sc, E1000_AR, reg | E1000_AR_SELECTOR_FIELD); } else PHY_WRITE(sc, E1000_AR, E1000_FA_1000X_FD | E1000_FA_1000X); - if ((sc->mii_extcapabilities & (EXTSR_1000TFDX | EXTSR_1000THDX)) != 0) - PHY_WRITE(sc, E1000_1GCR, - E1000_1GCR_1000T_FD | E1000_1GCR_1000T); + if ((sc->mii_flags & MIIF_HAVE_GTCR) != 0) { + reg = 0; + if ((sc->mii_extcapabilities & EXTSR_1000TFDX) != 0) + reg |= E1000_1GCR_1000T_FD; + if ((sc->mii_extcapabilities & EXTSR_1000THDX) != 0) + reg |= E1000_1GCR_1000T; + PHY_WRITE(sc, E1000_1GCR, reg); + } PHY_WRITE(sc, E1000_CR, E1000_CR_AUTO_NEG_ENABLE | E1000_CR_RESTART_AUTO_NEG);
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