blob: e9f726add0373a15e2f128ceb1abad52aadd8ef7 [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 Cascone837e6452017-07-19 20:35:22 -040017#ifndef PACKET_IO
18#define PACKET_IO
19
20control PacketIoIngressControl(inout headers_t hdr, inout standard_metadata_t standard_metadata) {
21 apply {
22 if (hdr.packet_out.isValid()) {
23 standard_metadata.egress_spec = hdr.packet_out.egress_port;
24 }
25 }
26}
27
28control PacketIoEgressControl(inout headers_t hdr, inout standard_metadata_t standard_metadata) {
29 apply {
30 hdr.packet_out.setInvalid();
Carmelo Cascone2cad9ef2017-08-01 21:52:07 +020031 if (standard_metadata.egress_port == CPU_PORT) {
Carmelo Cascone837e6452017-07-19 20:35:22 -040032 hdr.packet_in.setValid();
33 hdr.packet_in.ingress_port = standard_metadata.ingress_port;
34 }
35 }
36}
37
38#endif