[ONOS-7128] Initial commit of fabric.p4
Change-Id: I5224c411a1eccdbee84b1fc0b1824c5fa922f689
diff --git a/pipelines/fabric/src/main/resources/include/control/packetio.p4 b/pipelines/fabric/src/main/resources/include/control/packetio.p4
new file mode 100644
index 0000000..fb5d731
--- /dev/null
+++ b/pipelines/fabric/src/main/resources/include/control/packetio.p4
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "../header.p4"
+#include "../action.p4"
+
+control PacketIoIngress(
+inout parsed_headers_t hdr,
+inout fabric_metadata_t fabric_metadata,
+inout standard_metadata_t standard_metadata) {
+ apply {
+ if (hdr.packet_out.isValid()) {
+ standard_metadata.egress_spec = hdr.packet_out.egress_port;
+ exit;
+ }
+ }
+}
+
+control PacketIoEgress(
+inout parsed_headers_t hdr,
+inout fabric_metadata_t fabric_metadata,
+inout standard_metadata_t standard_metadata) {
+ apply {
+ hdr.packet_out.setInvalid();
+ if (standard_metadata.egress_port == CPU_PORT) {
+ hdr.packet_in.setValid();
+ hdr.packet_in.ingress_port = standard_metadata.ingress_port;
+ }
+ }
+}