[ONOS-7238] fix ICMP checksum error of fabric.p4

Change-Id: I921504ccdb295488bbea8636f412137bbab0d8f5
diff --git a/pipelines/fabric/src/main/resources/include/checksum.p4 b/pipelines/fabric/src/main/resources/include/checksum.p4
index 9931090..00b4e70 100644
--- a/pipelines/fabric/src/main/resources/include/checksum.p4
+++ b/pipelines/fabric/src/main/resources/include/checksum.p4
@@ -38,14 +38,6 @@
             hdr.ipv4.hdr_checksum,
             HashAlgorithm.csum16
         );
-        update_checksum(hdr.icmp.isValid(),
-            {
-                hdr.icmp.icmp_type,
-                hdr.icmp.icmp_code
-            },
-            hdr.icmp.checksum,
-            HashAlgorithm.csum16
-        );
     }
 }
 
@@ -70,14 +62,6 @@
             hdr.ipv4.hdr_checksum,
             HashAlgorithm.csum16
         );
-        verify_checksum(hdr.icmp.isValid(),
-            {
-                hdr.icmp.icmp_type,
-                hdr.icmp.icmp_code
-            },
-            hdr.icmp.checksum,
-            HashAlgorithm.csum16
-        );
     }
 }
 
diff --git a/pipelines/fabric/src/main/resources/include/header.p4 b/pipelines/fabric/src/main/resources/include/header.p4
index b243c94..c36f5a0 100644
--- a/pipelines/fabric/src/main/resources/include/header.p4
+++ b/pipelines/fabric/src/main/resources/include/header.p4
@@ -108,6 +108,9 @@
     bit<8> icmp_type;
     bit<8> icmp_code;
     bit<16> checksum;
+    bit<16> identifier;
+    bit<16> sequence_number;
+    bit<64> timestamp;
 }
 
 //Custom metadata definition
diff --git a/pipelines/fabric/src/main/resources/include/parser.p4 b/pipelines/fabric/src/main/resources/include/parser.p4
index 0e13cfd..d191ff9 100644
--- a/pipelines/fabric/src/main/resources/include/parser.p4
+++ b/pipelines/fabric/src/main/resources/include/parser.p4
@@ -143,6 +143,7 @@
         packet.emit(hdr.ipv6);
         packet.emit(hdr.tcp);
         packet.emit(hdr.udp);
+        packet.emit(hdr.icmp);
     }
 }