From 03299e46c9e857b885bf66c47bebc1bcac5dba55 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Fri, 30 Sep 2011 08:07:05 +0000 Subject: [PATCH] e1000e: WoL can fail on 82578DM During suspend, the PHY must be reset for workaround updates to take effect without restarting auto-negotiation. Also, set the disable GbE and enable Low Power Link Up (LPLU) if the EEPROM is configured to do likewise in either D0 or non-D0a instead of just the latter. Signed-off-by: Bruce Allan Tested-by: Jeff Pieper Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/ich8lan.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c index 3b063e1ac835..4ec5a5ad4eb5 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.c +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c @@ -1319,16 +1319,20 @@ static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state) if (mac_reg & E1000_PHY_CTRL_D0A_LPLU) oem_reg |= HV_OEM_BITS_LPLU; + + /* Set Restart auto-neg to activate the bits */ + if (!e1000_check_reset_block(hw)) + oem_reg |= HV_OEM_BITS_RESTART_AN; } else { - if (mac_reg & E1000_PHY_CTRL_NOND0A_GBE_DISABLE) + if (mac_reg & (E1000_PHY_CTRL_GBE_DISABLE | + E1000_PHY_CTRL_NOND0A_GBE_DISABLE)) oem_reg |= HV_OEM_BITS_GBE_DIS; - if (mac_reg & E1000_PHY_CTRL_NOND0A_LPLU) + if (mac_reg & (E1000_PHY_CTRL_D0A_LPLU | + E1000_PHY_CTRL_NOND0A_LPLU)) oem_reg |= HV_OEM_BITS_LPLU; } - /* Restart auto-neg to activate the bits */ - if (!e1000_check_reset_block(hw)) - oem_reg |= HV_OEM_BITS_RESTART_AN; + ret_val = hw->phy.ops.write_reg_locked(hw, HV_OEM_BITS, oem_reg); out: @@ -3684,6 +3688,7 @@ void e1000_suspend_workarounds_ich8lan(struct e1000_hw *hw) if (hw->mac.type >= e1000_pchlan) { e1000_oem_bits_config_ich8lan(hw, false); + e1000_phy_hw_reset_ich8lan(hw); ret_val = hw->phy.ops.acquire(hw); if (ret_val) return; -- 2.11.0