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r8169: fix driver shutdown WoL regression.

Browse Source 
Due to commit 92fc43b415 ("r8169: modify the
flow of the hw reset."), rtl8169_hw_reset stomps during driver shutdown on
RxConfig bits which are needed for WOL on some versions of the hardware.

As these bits were formerly set from the r81{0x, 68}_pll_power_down methods,
factor them out for use in the driver shutdown (rtl_shutdown) handler.

I favored __rtl8169_get_wol() -hardware state indication- over
RTL_FEATURE_WOL as the latter has become a good candidate for removal.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>
Tested-by: Marc Ballarin <ballarin.marc@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
françois romieu 2011-10-14 00:57:45 +00:00 committed by David S. Miller
parent 34b1901abd
commit 649b3b8c4e
1 changed files with 56 additions and 32 deletions
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88
drivers/net/r8169.c
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@ -3316,6 +3316,37 @@ static void __devinit rtl_init_mdio_ops(struct rtl8169_private *tp)
}
}
static void rtl_wol_suspend_quirk(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_29:
case RTL_GIGA_MAC_VER_30:
case RTL_GIGA_MAC_VER_32:
case RTL_GIGA_MAC_VER_33:
case RTL_GIGA_MAC_VER_34:
RTL_W32(RxConfig, RTL_R32(RxConfig) |
AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
break;
default:
break;
}
}
static bool rtl_wol_pll_power_down(struct rtl8169_private *tp)
{
if (!(__rtl8169_get_wol(tp) & WAKE_ANY))
return false;
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, MII_BMCR, 0x0000);
rtl_wol_suspend_quirk(tp);
return true;
}
static void r810x_phy_power_down(struct rtl8169_private *tp)
{
rtl_writephy(tp, 0x1f, 0x0000);
@ -3330,18 +3361,8 @@ static void r810x_phy_power_up(struct rtl8169_private *tp)
static void r810x_pll_power_down(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
if (__rtl8169_get_wol(tp) & WAKE_ANY) {
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, MII_BMCR, 0x0000);
if (tp->mac_version == RTL_GIGA_MAC_VER_29 ||
tp->mac_version == RTL_GIGA_MAC_VER_30)
RTL_W32(RxConfig, RTL_R32(RxConfig) | AcceptBroadcast |
AcceptMulticast | AcceptMyPhys);
if (rtl_wol_pll_power_down(tp))
return;
}
r810x_phy_power_down(tp);
}
@ -3430,17 +3451,8 @@ static void r8168_pll_power_down(struct rtl8169_private *tp)
tp->mac_version == RTL_GIGA_MAC_VER_33)
rtl_ephy_write(ioaddr, 0x19, 0xff64);
if (__rtl8169_get_wol(tp) & WAKE_ANY) {
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, MII_BMCR, 0x0000);
if (tp->mac_version == RTL_GIGA_MAC_VER_32 ||
tp->mac_version == RTL_GIGA_MAC_VER_33 ||
tp->mac_version == RTL_GIGA_MAC_VER_34)
RTL_W32(RxConfig, RTL_R32(RxConfig) | AcceptBroadcast |
AcceptMulticast | AcceptMyPhys);
if (rtl_wol_pll_power_down(tp))
return;
}
r8168_phy_power_down(tp);
@ -5788,11 +5800,30 @@ static const struct dev_pm_ops rtl8169_pm_ops = {
#endif /* !CONFIG_PM */
static void rtl_wol_shutdown_quirk(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;
/* WoL fails with 8168b when the receiver is disabled. */
switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_11:
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
pci_clear_master(tp->pci_dev);
RTL_W8(ChipCmd, CmdRxEnb);
/* PCI commit */
RTL_R8(ChipCmd);
break;
default:
break;
}
}
static void rtl_shutdown(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct rtl8169_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
rtl8169_net_suspend(dev);
@ -5806,16 +5837,9 @@ static void rtl_shutdown(struct pci_dev *pdev)
spin_unlock_irq(&tp->lock);
if (system_state == SYSTEM_POWER_OFF) {
/* WoL fails with 8168b when the receiver is disabled. */
if ((tp->mac_version == RTL_GIGA_MAC_VER_11 ||
tp->mac_version == RTL_GIGA_MAC_VER_12 ||
tp->mac_version == RTL_GIGA_MAC_VER_17) &&
(tp->features & RTL_FEATURE_WOL)) {
pci_clear_master(pdev);
RTL_W8(ChipCmd, CmdRxEnb);
/* PCI commit */
RTL_R8(ChipCmd);
if (__rtl8169_get_wol(tp) & WAKE_ANY) {
rtl_wol_suspend_quirk(tp);
rtl_wol_shutdown_quirk(tp);
}
pci_wake_from_d3(pdev, true);