| Yi Tseng | be34205 | 2017-11-03 10:21:23 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 3 | * |
| 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 | |
| 17 | #include "../header.p4" |
| 18 | #include "../action.p4" |
| 19 | |
| 20 | control PacketIoIngress( |
| 21 | inout parsed_headers_t hdr, |
| 22 | inout fabric_metadata_t fabric_metadata, |
| 23 | inout standard_metadata_t standard_metadata) { |
| 24 | apply { |
| 25 | if (hdr.packet_out.isValid()) { |
| 26 | standard_metadata.egress_spec = hdr.packet_out.egress_port; |
| 27 | exit; |
| 28 | } |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | control PacketIoEgress( |
| 33 | inout parsed_headers_t hdr, |
| 34 | inout fabric_metadata_t fabric_metadata, |
| 35 | inout standard_metadata_t standard_metadata) { |
| 36 | apply { |
| 37 | hdr.packet_out.setInvalid(); |
| 38 | if (standard_metadata.egress_port == CPU_PORT) { |
| 39 | hdr.packet_in.setValid(); |
| 40 | hdr.packet_in.ingress_port = standard_metadata.ingress_port; |
| 41 | } |
| 42 | } |
| 43 | } |