+/**
+ * ixgbe_wol_supported - Check whether device supports WoL
+ * @hw: hw specific details
+ * @device_id: the device ID
+ * @subdev_id: the subsystem device ID
+ *
+ * This function is used by probe and ethtool to determine
+ * which devices have WoL support
+ *
+ **/
+int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
+ u16 subdevice_id)
+{
+ struct ixgbe_hw *hw = &adapter->hw;
+ u16 wol_cap = adapter->eeprom_cap & IXGBE_DEVICE_CAPS_WOL_MASK;
+ int is_wol_supported = 0;
+
+ switch (device_id) {
+ case IXGBE_DEV_ID_82599_SFP:
+ /* Only these subdevices could supports WOL */
+ switch (subdevice_id) {
+ case IXGBE_SUBDEV_ID_82599_560FLR:
+ /* only support first port */
+ if (hw->bus.func != 0)
+ break;
+ case IXGBE_SUBDEV_ID_82599_SFP:
+ is_wol_supported = 1;
+ break;
+ }
+ break;
+ case IXGBE_DEV_ID_82599_COMBO_BACKPLANE:
+ /* All except this subdevice support WOL */
+ if (subdevice_id != IXGBE_SUBDEV_ID_82599_KX4_KR_MEZZ)
+ is_wol_supported = 1;
+ break;
+ case IXGBE_DEV_ID_82599_KX4:
+ is_wol_supported = 1;
+ break;
+ case IXGBE_DEV_ID_X540T:
+ /* check eeprom to see if enabled wol */
+ if ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0_1) ||
+ ((wol_cap == IXGBE_DEVICE_CAPS_WOL_PORT0) &&
+ (hw->bus.func == 0))) {
+ is_wol_supported = 1;
+ }
+ break;
+ }
+
+ return is_wol_supported;
+}
+