Add the complement diff

3 years ago · 8ac508162a
1 changed files with 1 additions and 2 deletions
--- a/p4src/checksum_diff.p4
+++ b/p4src/checksum_diff.p4
@ -197,8 +197,7 @@ control MyIngress(inout headers hdr,
                    v4sum();
                    v6sum();
                    bit<16> diff = meta.v6sum - meta.v4sum;
-                    # hdr.udp.checksum = hdr.udp.checksum + diff;
-                    hdr.udp.checksum = ~diff;
+                    hdr.udp.checksum = hdr.udp.checksum + ~diff;

                    #else
                    meta.chk_udp_v6 = 1;