eth_type moved outside ethernet header in fabric.p4

Change-Id: I3ae0813c5e8aba48767d5bb235fbbcfb75954010
diff --git a/pipelines/fabric/impl/src/main/resources/include/control/acl.p4 b/pipelines/fabric/impl/src/main/resources/include/control/acl.p4
index 4c2df67..26267e9 100644
--- a/pipelines/fabric/impl/src/main/resources/include/control/acl.p4
+++ b/pipelines/fabric/impl/src/main/resources/include/control/acl.p4
@@ -66,7 +66,7 @@
             hdr.ethernet.dst_addr: ternary @name("eth_src"); // 48
             hdr.ethernet.src_addr: ternary @name("eth_dst"); // 48
             hdr.vlan_tag.vlan_id: ternary @name("vlan_id"); // 12
-            fabric_metadata.last_eth_type: ternary @name("eth_type"); //16
+            hdr.eth_type.value: ternary @name("eth_type"); //16
             hdr.ipv4.src_addr: ternary @name("ipv4_src"); // 32
             hdr.ipv4.dst_addr: ternary @name("ipv4_dst"); // 32
             hdr.icmp.icmp_type: ternary @name("icmp_type"); // 8
diff --git a/pipelines/fabric/impl/src/main/resources/include/control/filtering.p4 b/pipelines/fabric/impl/src/main/resources/include/control/filtering.p4
index a3213e9..17dba78 100644
--- a/pipelines/fabric/impl/src/main/resources/include/control/filtering.p4
+++ b/pipelines/fabric/impl/src/main/resources/include/control/filtering.p4
@@ -91,9 +91,8 @@
         key = {
             standard_metadata.ingress_port : exact @name("ig_port");
             hdr.ethernet.dst_addr          : ternary @name("eth_dst");
-            fabric_metadata.is_ipv4        : exact @name("is_ipv4");
-            fabric_metadata.is_ipv6        : exact @name("is_ipv6");
-            fabric_metadata.is_mpls        : exact @name("is_mpls");
+            hdr.eth_type.value             : ternary @name("eth_type");
+            fabric_metadata.ip_eth_type    : exact @name("ip_eth_type");
         }
         actions = {
             set_forwarding_type;
@@ -126,22 +125,6 @@
             fabric_metadata.mpls_ttl = DEFAULT_MPLS_TTL + 1;
         }
 
-        // Set last_eth_type checking the validity of the L2.5 headers
-        if (hdr.mpls.isValid()) {
-            fabric_metadata.last_eth_type = ETHERTYPE_MPLS;
-        } else {
-            if (hdr.vlan_tag.isValid()) {
-#if defined(WITH_XCONNECT) || defined(WITH_BNG) || defined(WITH_DOUBLE_VLAN_TERMINATION)
-                if(hdr.inner_vlan_tag.isValid()) {
-                    fabric_metadata.last_eth_type = hdr.inner_vlan_tag.eth_type;
-                } else
-#endif //  WITH_XCONNECT || WITH_BNG || WITH_DOUBLE_VLAN_TERMINATION
-                    fabric_metadata.last_eth_type = hdr.vlan_tag.eth_type;
-            } else {
-                fabric_metadata.last_eth_type = hdr.ethernet.eth_type;
-            }
-        }
-
         ingress_port_vlan.apply();
         fwd_classifier.apply();
     }
diff --git a/pipelines/fabric/impl/src/main/resources/include/control/forwarding.p4 b/pipelines/fabric/impl/src/main/resources/include/control/forwarding.p4
index 89544ea..7348c59 100644
--- a/pipelines/fabric/impl/src/main/resources/include/control/forwarding.p4
+++ b/pipelines/fabric/impl/src/main/resources/include/control/forwarding.p4
@@ -84,15 +84,22 @@
     /*
      * IPv4 Routing Table.
      */
+#ifdef WTIH_DEBUG
     direct_counter(CounterType.packets_and_bytes) routing_v4_counter;
+#endif // WITH_DEBUG
 
     action set_next_id_routing_v4(next_id_t next_id) {
         set_next_id(next_id);
+#ifdef WTIH_DEBUG
         routing_v4_counter.count();
+#endif // WITH_DEBUG
     }
 
     action nop_routing_v4() {
+        // no-op
+#ifdef WTIH_DEBUG
         routing_v4_counter.count();
+#endif // WITH_DEBUG
     }
 
     #ifdef _ROUTING_V4_TABLE_ANNOT
@@ -108,7 +115,9 @@
             @defaultonly nop;
         }
         const default_action = nop();
+#ifdef WTIH_DEBUG
         counters = routing_v4_counter;
+#endif // WITH_DEBUG
         size = ROUTING_V4_TABLE_SIZE;
     }
 
diff --git a/pipelines/fabric/impl/src/main/resources/include/control/next.p4 b/pipelines/fabric/impl/src/main/resources/include/control/next.p4
index e7f6e44..2ea719a 100644
--- a/pipelines/fabric/impl/src/main/resources/include/control/next.p4
+++ b/pipelines/fabric/impl/src/main/resources/include/control/next.p4
@@ -104,7 +104,6 @@
 
     action output_xconnect(port_num_t port_num) {
         output(port_num);
-        fabric_metadata.last_eth_type = ETHERTYPE_VLAN;
         xconnect_counter.count();
     }
 
@@ -174,6 +173,9 @@
      * Execute an action profile selector based on next id.
      */
     @max_group_size(HASHED_SELECTOR_MAX_GROUP_SIZE)
+    #ifdef _CUSTOM_HASHED_SELECTOR_ANNOTATION
+        _CUSTOM_HASHED_SELECTOR_ANNOTATION
+    #endif
     action_selector(HashAlgorithm.crc16, HASHED_ACT_PROFILE_SIZE, 32w16) hashed_selector;
     direct_counter(CounterType.packets_and_bytes) hashed_counter;
 
@@ -263,7 +265,7 @@
     action pop_mpls_if_present() {
         hdr.mpls.setInvalid();
         // Assuming there's an IP header after the MPLS one.
-        fabric_metadata.last_eth_type = fabric_metadata.ip_eth_type;
+        hdr.eth_type.value = fabric_metadata.ip_eth_type;
     }
 
     @hidden
@@ -273,7 +275,7 @@
         hdr.mpls.tc = 3w0;
         hdr.mpls.bos = 1w1; // BOS = TRUE
         hdr.mpls.ttl = fabric_metadata.mpls_ttl; // Decrement after push.
-        fabric_metadata.last_eth_type = ETHERTYPE_MPLS;
+        hdr.eth_type.value = ETHERTYPE_MPLS;
     }
 
     @hidden
@@ -283,23 +285,20 @@
         hdr.vlan_tag.setValid();
         hdr.vlan_tag.cfi = fabric_metadata.vlan_cfi;
         hdr.vlan_tag.pri = fabric_metadata.vlan_pri;
-        hdr.vlan_tag.eth_type = fabric_metadata.last_eth_type;
+        hdr.vlan_tag.eth_type = ETHERTYPE_VLAN;
         hdr.vlan_tag.vlan_id = fabric_metadata.vlan_id;
-        hdr.ethernet.eth_type = ETHERTYPE_VLAN;
     }
 
 #ifdef WITH_DOUBLE_VLAN_TERMINATION
     @hidden
     action push_inner_vlan() {
-        // Then push inner VLAN TAG, rewriting correclty the outer vlan eth_type
-        // and the ethernet eth_type
+        // Push inner VLAN TAG, rewriting correclty the outer vlan eth_type
         hdr.inner_vlan_tag.setValid();
         hdr.inner_vlan_tag.cfi = fabric_metadata.inner_vlan_cfi;
         hdr.inner_vlan_tag.pri = fabric_metadata.inner_vlan_pri;
         hdr.inner_vlan_tag.vlan_id = fabric_metadata.inner_vlan_id;
-        hdr.inner_vlan_tag.eth_type = fabric_metadata.last_eth_type;
+        hdr.inner_vlan_tag.eth_type = ETHERTYPE_VLAN;
         hdr.vlan_tag.eth_type = ETHERTYPE_VLAN;
-        hdr.ethernet.eth_type = ETHERTYPE_QINQ;
     }
 #endif // WITH_DOUBLE_VLAN_TERMINATION
 
@@ -310,7 +309,6 @@
     direct_counter(CounterType.packets_and_bytes) egress_vlan_counter;
 
     action pop_vlan() {
-        hdr.ethernet.eth_type = fabric_metadata.last_eth_type;
         hdr.vlan_tag.setInvalid();
         egress_vlan_counter.count();
     }