From: Hayes Wang Date: Sat, 13 Apr 2013 10:26:55 +0000 (+0200) Subject: r8169: fix auto speed down issue X-Git-Tag: v3.0.74~2 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0776cdd7c35a4b4ca7b80e6afc4ecd0d26831d7;p=thirdparty%2Fkernel%2Fstable.git r8169: fix auto speed down issue commit e2409d83434d77874b461b78af6a19cd6e6a1280 upstream. It would cause no link after suspending or shutdowning when the nic changes the speed to 10M and connects to a link partner which forces the speed to 100M. Check the link partner ability to determine which speed to set. The link speed down code path is not factored in this kernel version. Signed-off-by: Hayes Wang Acked-by: Francois Romieu Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 80b230e6f2073..8350f8d21f09f 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -3105,11 +3105,34 @@ static void r810x_phy_power_up(struct rtl8169_private *tp) rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE); } +static void rtl_speed_down(struct rtl8169_private *tp) +{ + u32 adv; + int lpa; + + rtl_writephy(tp, 0x1f, 0x0000); + lpa = rtl_readphy(tp, MII_LPA); + + if (lpa & (LPA_10HALF | LPA_10FULL)) + adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full; + else if (lpa & (LPA_100HALF | LPA_100FULL)) + adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; + else + adv = ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | + ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full | + (tp->mii.supports_gmii ? + ADVERTISED_1000baseT_Half | + ADVERTISED_1000baseT_Full : 0); + + rtl8169_set_speed(tp->dev, AUTONEG_ENABLE, SPEED_1000, DUPLEX_FULL, + adv); +} + static void r810x_pll_power_down(struct rtl8169_private *tp) { if (__rtl8169_get_wol(tp) & WAKE_ANY) { - rtl_writephy(tp, 0x1f, 0x0000); - rtl_writephy(tp, MII_BMCR, 0x0000); + rtl_speed_down(tp); return; } @@ -3201,8 +3224,7 @@ static void r8168_pll_power_down(struct rtl8169_private *tp) rtl_ephy_write(ioaddr, 0x19, 0xff64); if (__rtl8169_get_wol(tp) & WAKE_ANY) { - rtl_writephy(tp, 0x1f, 0x0000); - rtl_writephy(tp, MII_BMCR, 0x0000); + rtl_speed_down(tp); if (tp->mac_version == RTL_GIGA_MAC_VER_32 || tp->mac_version == RTL_GIGA_MAC_VER_33)