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e1000e: WoL fails on device ID 0x1501 

PCI device ID 0x1501 has a hardware bug when the link downshifts for
whatever reason which requires a workaround.  The workaround already exists
for other similar devices but is not called for 0x1501 (it should be called
for any ICH8-based device that uses a GbE PHY).  There is also one other
instance when the workaround should be called - after disabling gigabit
speed when going to Sx.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan 2011-09-30 08:07:11 +00:00 committed by Jeff Kirsher
parent 03299e46c9
commit 462d599449
1 changed files with 6 additions and 4 deletions
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10
drivers/net/ethernet/intel/e1000e/ich8lan.c
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@ -811,7 +811,7 @@ static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
}
if ((adapter->hw.mac.type == e1000_ich8lan) &&
(adapter->hw.phy.type == e1000_phy_igp_3))
(adapter->hw.phy.type != e1000_phy_ife))
adapter->flags |= FLAG_LSC_GIG_SPEED_DROP;
/* Enable workaround for 82579 w/ ME enabled */
@ -3642,15 +3642,14 @@ void e1000e_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
* LPLU, Gig disable, MDIC PHY reset):
* 1) Set Kumeran Near-end loopback
* 2) Clear Kumeran Near-end loopback
* Should only be called for ICH8[m] devices with IGP_3 Phy.
* Should only be called for ICH8[m] devices with any 1G Phy.
**/
void e1000e_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
{
s32 ret_val;
u16 reg_data;
if ((hw->mac.type != e1000_ich8lan) ||
(hw->phy.type != e1000_phy_igp_3))
if ((hw->mac.type != e1000_ich8lan) || (hw->phy.type == e1000_phy_ife))
return;
ret_val = e1000e_read_kmrn_reg(hw, E1000_KMRNCTRLSTA_DIAG_OFFSET,
@ -3686,6 +3685,9 @@ void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw)
phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU | E1000_PHY_CTRL_GBE_DISABLE;
ew32(PHY_CTRL, phy_ctrl);
if (hw->mac.type == e1000_ich8lan)
e1000e_gig_downshift_workaround_ich8lan(hw);
if (hw->mac.type >= e1000_pchlan) {
e1000_oem_bits_config_ich8lan(hw, false);
e1000_phy_hw_reset_ich8lan(hw);