ixgbe: explicitly disable 100H for x540

100H is not supported on this HW, but the bit is set on the PHY.
This can result in link at 100F when advertising only 1000F.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c
index 31cc29e..fd381ea 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ixgbe/ixgbe_phy.c
@@ -449,7 +449,8 @@ s32 ixgbe_setup_phy_link_generic(struct ixgbe_hw *hw)
                                     MDIO_MMD_AN,
                                     &autoneg_reg);
 
-               autoneg_reg &= ~ADVERTISE_100FULL;
+               autoneg_reg &= ~(ADVERTISE_100FULL |
+                                ADVERTISE_100HALF);
                if (hw->phy.autoneg_advertised & IXGBE_LINK_SPEED_100_FULL)
                        autoneg_reg |= ADVERTISE_100FULL;