ARS Enhancements (opencomputeproject#1978)

New global attributes added to

Enable/DIsable IPv4 traffic
Enable/Disable IPv6 traffic
SAI_ACL_ENTRY_ATTR_ACTION_DISABLE_ARS_FORWARDING attribute modified as a data type bool.
Default value is ARS forwarding is enabled. Setting bool to true means that ARS forwarding is disabled.

ACL ARS forwarding Enable and NHG with ARS binding: ARS forwarding takes effect
ACL ARS forwarding Enable and NHG without ARS binding: ACL entry is a noop and NHG forwarding takes effect.
ACL ARS forwarding Disable and NHG with ARS binding: NHG forwarding takes effect
ACL ARS forwarding Disable and NHG without ARS binding: ACL entry is a noop and NHG forwarding takes effect.

inc/saiacl.h

@@ -3185,11 +3185,10 @@ typedef enum _sai_acl_entry_attr_t
     SAI_ACL_ENTRY_ATTR_ACTION_SET_ARS_OBJECT = SAI_ACL_ENTRY_ATTR_ACTION_START + 0x36,
 
     /**
-     * @brief Disable ARS forwarding for a destination that can be a LAG or nexthopgroup
+     * @brief Disable ARS forwarding for a given match condition. This rule takes effect only when global ARS profile object is created and has binding to the switch
      *
-     * @type sai_acl_action_data_t sai_object_id_t
+     * @type sai_acl_action_data_t bool
      * @flags CREATE_AND_SET
-     * @objects SAI_OBJECT_TYPE_LAG, SAI_OBJECT_TYPE_NEXT_HOP_GROUP
      * @default disabled
      */
     SAI_ACL_ENTRY_ATTR_ACTION_DISABLE_ARS_FORWARDING = SAI_ACL_ENTRY_ATTR_ACTION_START + 0x37,

inc/saiarsprofile.h

@@ -326,6 +326,24 @@ typedef enum _sai_ars_profile_attr_t
      */
     SAI_ARS_PROFILE_ATTR_QUANT_BAND_7_MAX_THRESHOLD,
 
+    /**
+     * @brief Enable IPv4 traffic (ether type) for ARS processing.
+     *
+     * @type bool
+     * @flags CREATE_AND_SET
+     * @default false
+     */
+    SAI_ARS_PROFILE_ATTR_ENABLE_IPV4,
+
+    /**
+     * @brief Enable IPv6 traffic (ether type) for ARS processing.
+     *
+     * @type bool
+     * @flags CREATE_AND_SET
+     * @default false
+     */
+    SAI_ARS_PROFILE_ATTR_ENABLE_IPV6,
+
     /**
      * @brief End of attributes
      */