diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index cbad4eba7ae7..8e082a946411 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -3614,11 +3614,15 @@ i40e_status i40e_aq_get_cee_dcb_config(struct i40e_hw *hw,
 /**
  * i40e_aq_add_udp_tunnel
  * @hw: pointer to the hw struct
- * @udp_port: the UDP port to add
+ * @udp_port: the UDP port to add in Host byte order
  * @header_len: length of the tunneling header length in DWords
  * @protocol_index: protocol index type
  * @filter_index: pointer to filter index
  * @cmd_details: pointer to command details structure or NULL
+ *
+ * Note: Firmware expects the udp_port value to be in Little Endian format,
+ * and this function will call cpu_to_le16 to convert from Host byte order to
+ * Little Endian order.
  **/
 i40e_status i40e_aq_add_udp_tunnel(struct i40e_hw *hw,
 				u16 udp_port, u8 protocol_index,