Add SAI appliance object, local region ID field

dash-pipeline/SAI/Makefile

@@ -3,7 +3,7 @@ all: copysrc
 	./sai_api_gen.py \
 		/bmv2/dash_pipeline.bmv2/dash_pipeline_p4rt.json \
 		--ir /bmv2/dash_pipeline.bmv2/dash_pipeline_ir.json \
-		--ignore-tables=appliance,eni_meter,slb_decap \
+		--ignore-tables=underlay_mac,eni_meter,slb_decap \
 		--sai-spec-dir=/SAI/specs \
 		dash
 

dash-pipeline/SAI/specs/dash_appliance.yaml

@@ -0,0 +1,35 @@
+!!python/object:utils.sai_spec.sai_api_group.SaiApiGroup
+name: dash_appliance
+description: DASH appliance
+api_type: overlay
+sai_apis:
+- !!python/object:utils.sai_spec.sai_api.SaiApi
+  name: dash_appliance
+  description: DASH appliance
+  is_object: true
+  enums: []
+  structs: []
+  attributes:
+  - !!python/object:utils.sai_spec.sai_attribute.SaiAttribute
+    name: SAI_DASH_APPLIANCE_ATTR_LOCAL_REGION_ID
+    description: Action parameter local region id
+    type: sai_uint8_t
+    attr_value_field: u8
+    default: '0'
+    isresourcetype: false
+    flags: CREATE_AND_SET
+    object_name: null
+    allow_null: false
+    valid_only: null
+    is_vlan: false
+    deprecated: false
+  stats: []
+  p4_meta: !!python/object:utils.sai_spec.sai_api_p4_meta.SaiApiP4Meta
+    tables:
+    - !!python/object:utils.sai_spec.sai_api_p4_meta.SaiApiP4MetaTable
+      id: 42701762
+      actions:
+        default: !!python/object:utils.sai_spec.sai_api_p4_meta.SaiApiP4MetaAction
+          name: default
+          id: 21793905
+          attr_param_id: {}

dash-pipeline/SAI/specs/sai_spec.yaml

@@ -14,6 +14,7 @@ api_types:
 - SAI_API_DASH_VIP
 - SAI_API_DASH_TUNNEL
 - SAI_API_DASH_FLOW
+- SAI_API_DASH_APPLIANCE
 object_types:
 - SAI_OBJECT_TYPE_DASH_ACL_GROUP
 - SAI_OBJECT_TYPE_DASH_ACL_RULE
@@ -39,6 +40,7 @@ object_types:
 - SAI_OBJECT_TYPE_FLOW_ENTRY_BULK_GET_SESSION_FILTER
 - SAI_OBJECT_TYPE_FLOW_ENTRY_BULK_GET_SESSION
 - SAI_OBJECT_TYPE_METER_BUCKET_ENTRY
+- SAI_OBJECT_TYPE_DASH_APPLIANCE
 object_entries:
 - !!python/object:utils.sai_spec.sai_struct_entry.SaiStructEntry
   name: direction_lookup_entry
@@ -489,3 +491,4 @@ api_groups:
 - !inc '/SAI/specs/dash_vip.yaml'
 - !inc '/SAI/specs/dash_tunnel.yaml'
 - !inc '/SAI/specs/dash_flow.yaml'
+- !inc '/SAI/specs/dash_appliance.yaml'

dash-pipeline/bmv2/dash_metadata.p4

@@ -320,6 +320,7 @@ struct metadata_t {
     overlay_rewrite_data_t overlay_data;
     bit<16> dash_tunnel_id;
     bit<32> meter_class;
+    bit<8> local_region_id;
 }
 
 #endif /* _SIRIUS_METADATA_P4_ */

dash-pipeline/bmv2/dash_pipeline.p4

@@ -59,21 +59,38 @@ control dash_ingress(
         const default_action = deny;
     }
 
-    action set_appliance(EthernetAddress neighbor_mac,
-                         EthernetAddress mac) {
+    action set_appliance(bit<8> local_region_id) {
+        meta.local_region_id = local_region_id;
+    }
+
+    @SaiTable[name = "dash_appliance", api = "dash_appliance", order = 0, isobject="true"]
+    table appliance {
+        key = {
+            meta.appliance_id : exact @SaiVal[type="sai_object_id_t"];
+        }
+
+        actions = {
+            set_appliance;
+            @defaultonly accept;
+        }
+        const default_action = accept;
+    }
+
+    action set_underlay_mac(EthernetAddress neighbor_mac,
+                            EthernetAddress mac) {
         meta.encap_data.underlay_dmac = neighbor_mac;
         meta.encap_data.underlay_smac = mac;
     }
 
     /* This table API should be implemented manually using underlay SAI */
     @SaiTable[ignored = "true"]
-    table appliance {
+    table underlay_mac {
         key = {
             meta.appliance_id : ternary;
         }
 
         actions = {
-            set_appliance;
+            set_underlay_mac;
         }
     }
 
@@ -283,6 +300,7 @@ control dash_ingress(
         direction_lookup_stage.apply(hdr, meta);
 
         appliance.apply();
+        underlay_mac.apply();
 
         /* Outer header processing */
         eni_lookup_stage.apply(hdr, meta);