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igb: Enable auto-crossover during forced operation on 82580 and above. 

Newer devices supported by igb can support auto-crossover detection in
forced operation modes. Enable this in the driver, rather than clobbering
this functionality in forced operation.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Matthew Vick 2012-10-16 07:44:45 +00:00 committed by Jeff Kirsher
parent 91ffb8e0dc
commit 9f0b851619
2 changed files with 21 additions and 12 deletions
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4
drivers/net/ethernet/intel/igb/e1000_mac.c
View File

@ -1391,6 +1391,10 @@ s32 igb_validate_mdi_setting(struct e1000_hw *hw)
{
s32 ret_val = 0;
/* All MDI settings are supported on 82580 and newer. */
if (hw->mac.type >= e1000_82580)
goto out;
if (!hw->mac.autoneg && (hw->phy.mdix == 0 || hw->phy.mdix == 3)) {
hw_dbg("Invalid MDI setting detected\n");
hw->phy.mdix = 1;

29
drivers/net/ethernet/intel/igb/e1000_phy.c
View File

@ -1207,20 +1207,25 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
u16 phy_data;
bool link;
/*
* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI
* forced whenever speed and duplex are forced.
*/
ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
if (ret_val)
goto out;
/* I210 and I211 devices support Auto-Crossover in forced operation. */
if (phy->type != e1000_phy_i210) {
/*
* Clear Auto-Crossover to force MDI manually. M88E1000
* requires MDI forced whenever speed and duplex are forced.
*/
ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL,
&phy_data);
if (ret_val)
goto out;
phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
if (ret_val)
goto out;
phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL,
phy_data);
if (ret_val)
goto out;
hw_dbg("M88E1000 PSCR: %X\n", phy_data);
hw_dbg("M88E1000 PSCR: %X\n", phy_data);
}
ret_val = phy->ops.read_reg(hw, PHY_CONTROL, &phy_data);
if (ret_val)