Avoid egress processing for controller packet-in/out in fabric.p4
Change-Id: If8ac129efd11a437054ed6b7178e167eff9c6e74
diff --git a/pipelines/fabric/src/main/resources/include/control/packetio.p4 b/pipelines/fabric/src/main/resources/include/control/packetio.p4
index fa447e7..1086dac 100644
--- a/pipelines/fabric/src/main/resources/include/control/packetio.p4
+++ b/pipelines/fabric/src/main/resources/include/control/packetio.p4
@@ -25,6 +25,7 @@
if (hdr.packet_out.isValid()) {
standard_metadata.egress_spec = hdr.packet_out.egress_port;
hdr.packet_out.setInvalid();
+ fabric_metadata.is_controller_packet_out = _TRUE;
exit;
}
}
@@ -39,6 +40,10 @@
hdr.vlan_tag.setInvalid();
}
apply {
+ if (fabric_metadata.is_controller_packet_out == _TRUE) {
+ // No need to process through the rest of the pipeline.
+ exit;
+ }
if (standard_metadata.egress_port == CPU_PORT) {
if (hdr.vlan_tag.isValid() && fabric_metadata.pop_vlan_when_packet_in == _TRUE) {
pop_vlan();
@@ -50,6 +55,8 @@
}
hdr.packet_in.setValid();
hdr.packet_in.ingress_port = standard_metadata.ingress_port;
+ // No need to process through the rest of the pipeline.
+ exit;
}
}
}