blob: 4ed681cb880cf6a9e6fd037d961d0151239dfada [file] [log] [blame]
Carmelo Casconec8d34862017-07-30 00:48:23 -04001/*
Brian O'Connora09fe5b2017-08-03 21:12:30 -07002 * Copyright 2017-present Open Networking Foundation
Carmelo Casconec8d34862017-07-30 00:48:23 -04003 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
Carmelo Casconeca94bcf2017-10-27 14:16:59 -070017#ifndef __PACKET_IO__
18#define __PACKET_IO__
Carmelo Cascone837e6452017-07-19 20:35:22 -040019
Carmelo Casconeca94bcf2017-10-27 14:16:59 -070020#include "headers.p4"
21#include "defines.p4"
22
23control packetio_ingress(inout headers_t hdr,
24 inout standard_metadata_t standard_metadata) {
Carmelo Cascone837e6452017-07-19 20:35:22 -040025 apply {
Carmelo Casconeca94bcf2017-10-27 14:16:59 -070026 if (standard_metadata.ingress_port == CPU_PORT) {
Carmelo Cascone837e6452017-07-19 20:35:22 -040027 standard_metadata.egress_spec = hdr.packet_out.egress_port;
Carmelo Casconeca94bcf2017-10-27 14:16:59 -070028 hdr.packet_out.setInvalid();
29 exit;
Carmelo Cascone837e6452017-07-19 20:35:22 -040030 }
31 }
32}
33
Carmelo Casconeca94bcf2017-10-27 14:16:59 -070034control packetio_egress(inout headers_t hdr,
35 inout standard_metadata_t standard_metadata) {
Carmelo Cascone837e6452017-07-19 20:35:22 -040036 apply {
Carmelo Cascone2cad9ef2017-08-01 21:52:07 +020037 if (standard_metadata.egress_port == CPU_PORT) {
Carmelo Cascone837e6452017-07-19 20:35:22 -040038 hdr.packet_in.setValid();
39 hdr.packet_in.ingress_port = standard_metadata.ingress_port;
40 }
41 }
42}
43
44#endif