From 6765b878c231ee4277f29cbe743936e258e27ddc Mon Sep 17 00:00:00 2001
From: Nico Schottelius <nico@nico-notebook.schottelius.org>
Date: Wed, 6 Mar 2019 13:48:24 +0100
Subject: [PATCH] [p4] Disable checksum code again

To make the switch compile. Current error:

*** Starting 2 switches
s1 Starting P4 switch s1.
simple_switch -i 1@s1-eth1 -i 2@s1-eth2 -i 3@s1-eth3 -i 4@s1-eth4 -i 5@s1-cpu-eth0 --pcap=/home/p4/master-thesis/p4app/pcap --thrift-port 9090 --nanolog ipc:///tmp/bm-1-log.ipc --device-id 1 ../p4src/static-mapping.json --log-console >/home/p4/master-thesis/p4app/log/s1.log
P4 switch s1 did not start correctly. Check the switch log file.
p4@ubuntu:~/master-thesis/p4app$ cat /home/p4/master-thesis/p4app/log/s1.log
Warning: you requested the nanomsg event logger, but bmv2 was compiled without -DBMELOG, and the event logger cannot be activated
Calling target program-options parser
[12:24:10.407] [bmv2] [D] [thread 13263] Set default default entry for table 'MyIngress.v6_addresses': NoAction -
[12:24:10.407] [bmv2] [D] [thread 13263] Set default default entry for table 'MyIngress.v6_networks': NoAction -
[12:24:10.407] [bmv2] [D] [thread 13263] Set default default entry for table 'MyIngress.v4_networks': NoAction -
[12:24:10.408] [bmv2] [D] [thread 13263] Set default default entry for table 'tbl_act': act -
Invalid entry type 'expression' in field list
bad json:
{
   "type" : "expression",
   "value" : {
      "type" : "expression",
      "value" : {
         "left" : null,
         "op" : "d2b",
         "right" : {
            "type" : "field",
            "value" : [ "scalars", "metadata.calc_icmp6_checksum" ]
         }
      }
   }
}

p4@ubuntu:~/master-thesis/p4app$
---
 p4src/checksums.p4 | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/p4src/checksums.p4 b/p4src/checksums.p4
index d456ab5..2de339f 100644
--- a/p4src/checksums.p4
+++ b/p4src/checksums.p4
@@ -21,18 +21,18 @@ control MyVerifyChecksum(inout headers hdr, inout metadata meta) {
 
 control MyComputeChecksum(inout headers  hdr, inout metadata meta) {
     apply {
-        update_checksum_with_payload(meta.calc_icmp6_checksum,
-		 	{
-                hdr.ipv6.src_addr,         /* 128 */
-		 		hdr.ipv6.dst_addr,         /* 128 */
-                16w0,                      /* 16 try implicit cast */
-                hdr.ipv6.payload_length,   /* 16 */
-                24w0,                      /* 24 0's */
-                PROTO_ICMP6                /* 8 */
-            },
-            hdr.icmp6.checksum,
-            HashAlgorithm.csum16
-        );
+        // GRRRRR update_checksum_with_payload(meta.calc_icmp6_checksum,
+		// GRRRRR  	{
+        // GRRRRR         hdr.ipv6.src_addr,         /* 128 */
+		// GRRRRR  		hdr.ipv6.dst_addr,         /* 128 */
+        // GRRRRR         16w0,                      /* 16 try implicit cast */
+        // GRRRRR         hdr.ipv6.payload_length,   /* 16 */
+        // GRRRRR         24w0,                      /* 24 0's */
+        // GRRRRR         PROTO_ICMP6                /* 8 */
+        // GRRRRR     },
+        // GRRRRR     hdr.icmp6.checksum,
+        // GRRRRR     HashAlgorithm.csum16
+        // GRRRRR );
     }
 }