IXGBE_EIAC
ixgbe_log(ixgbe, "..eiac: 0x%x\n", IXGBE_READ_REG(hw, IXGBE_EIAC));
IXGBE_WRITE_REG(hw, IXGBE_EIAC, 0x0);
IXGBE_WRITE_REG(hw, IXGBE_EIAC, eiac);