Daniele Moro | 7928055 | 2020-12-15 14:13:51 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2020-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 <core.p4> |
| 18 | #include <v1model.p4> |
| 19 | |
| 20 | typedef bit<9> port_t; |
| 21 | |
| 22 | @p4runtime_translation("", string) |
| 23 | type bit<48> mac_addr_t; |
| 24 | |
| 25 | @p4runtime_translation("", 32) |
| 26 | type port_t port_id_bit_t; |
| 27 | |
| 28 | @p4runtime_translation("", string) |
| 29 | type port_t port_id_str_t; |
| 30 | |
| 31 | const port_t CPU_PORT = 255; |
| 32 | |
| 33 | @controller_header("packet_in") |
| 34 | header packet_in_header_t { |
| 35 | bit<9> ingress_port; |
| 36 | bit<7> _padding; |
| 37 | } |
| 38 | |
| 39 | @controller_header("packet_out") |
| 40 | header packet_out_header_t { |
| 41 | bit<9> egress_port; |
| 42 | bit<7> _padding; |
| 43 | } |
| 44 | |
| 45 | header ethernet_t { |
| 46 | mac_addr_t dstAddr; |
| 47 | mac_addr_t srcAddr; |
| 48 | bit<16> etherType; |
| 49 | } |
| 50 | |
| 51 | struct headers_t { |
| 52 | packet_out_header_t packet_out; |
| 53 | packet_in_header_t packet_in; |
| 54 | ethernet_t ethernet; |
| 55 | } |
| 56 | |
| 57 | struct local_metadata_t { |
| 58 | port_id_bit_t ingress_port; |
| 59 | } |
| 60 | |
| 61 | // Test P4 Program for P4Runtime translation (simplified version of basic.p4). |
| 62 | |
| 63 | //------------------------------------------------------------------------------ |
| 64 | // PARSER |
| 65 | //------------------------------------------------------------------------------ |
| 66 | parser parser_impl(packet_in packet, |
| 67 | out headers_t hdr, |
| 68 | inout local_metadata_t local_metadata, |
| 69 | inout standard_metadata_t standard_metadata) { |
| 70 | |
| 71 | state start { |
| 72 | local_metadata.ingress_port = (port_id_bit_t) standard_metadata.ingress_port; |
| 73 | transition select(standard_metadata.ingress_port) { |
| 74 | CPU_PORT: parse_packet_out; |
| 75 | default: parse_ethernet; |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | state parse_packet_out { |
| 80 | packet.extract(hdr.packet_out); |
| 81 | transition parse_ethernet; |
| 82 | } |
| 83 | |
| 84 | state parse_ethernet { |
| 85 | packet.extract(hdr.ethernet); |
| 86 | transition accept; |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | //------------------------------------------------------------------------------ |
| 91 | // DEPARSER |
| 92 | //------------------------------------------------------------------------------ |
| 93 | control deparser(packet_out packet, in headers_t hdr) { |
| 94 | apply { |
| 95 | packet.emit(hdr.packet_in); |
| 96 | packet.emit(hdr.ethernet); |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | |
| 101 | //------------------------------------------------------------------------------ |
| 102 | // INGRESS PIPELINE |
| 103 | //------------------------------------------------------------------------------ |
| 104 | |
| 105 | control ingress(inout headers_t hdr, |
| 106 | inout local_metadata_t local_metadata, |
| 107 | inout standard_metadata_t standard_metadata) { |
| 108 | |
| 109 | @name(".send_to_cpu") |
| 110 | action send_to_cpu() { |
| 111 | standard_metadata.egress_spec = CPU_PORT; |
| 112 | } |
| 113 | |
| 114 | @name(".set_egress_port") |
| 115 | action set_egress_port(port_id_str_t port) { |
| 116 | standard_metadata.egress_spec = (bit<9>) port; |
| 117 | } |
| 118 | @name(".set_egress_port2") |
| 119 | action set_egress_port2(port_id_bit_t port) { |
| 120 | standard_metadata.egress_spec = (bit<9>) port; |
| 121 | } |
| 122 | |
| 123 | @name(".drop") |
| 124 | action drop() { |
| 125 | mark_to_drop(standard_metadata); |
| 126 | } |
| 127 | @name(".table0") |
| 128 | table table0 { |
| 129 | key = { |
| 130 | local_metadata.ingress_port : exact; |
| 131 | hdr.ethernet.srcAddr : exact; |
| 132 | hdr.ethernet.dstAddr : exact; |
Daniele Moro | cdac24f | 2020-12-18 10:55:57 +0100 | [diff] [blame] | 133 | hdr.ethernet.etherType : optional; |
Daniele Moro | 7928055 | 2020-12-15 14:13:51 +0100 | [diff] [blame] | 134 | } |
| 135 | actions = { |
| 136 | set_egress_port; |
| 137 | set_egress_port2; |
| 138 | send_to_cpu; |
| 139 | drop; |
| 140 | } |
| 141 | const default_action = drop(); |
| 142 | } |
| 143 | |
| 144 | apply { |
| 145 | table0.apply(); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | //------------------------------------------------------------------------------ |
| 150 | // EGRESS PIPELINE |
| 151 | //------------------------------------------------------------------------------ |
| 152 | |
| 153 | control egress(inout headers_t hdr, |
| 154 | inout local_metadata_t local_metadata, |
| 155 | inout standard_metadata_t standard_metadata) { |
| 156 | |
| 157 | apply { |
| 158 | // no-op |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | control verify_checksum_control(inout headers_t hdr, |
| 163 | inout local_metadata_t local_metadata) { |
| 164 | apply { |
| 165 | // Assume checksum is always correct. |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | control compute_checksum_control(inout headers_t hdr, |
| 170 | inout local_metadata_t local_metadata) { |
| 171 | apply { |
| 172 | // no-op for the test program |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | //------------------------------------------------------------------------------ |
| 177 | // SWITCH INSTANTIATION |
| 178 | //------------------------------------------------------------------------------ |
| 179 | |
| 180 | V1Switch(parser_impl(), |
| 181 | verify_checksum_control(), |
| 182 | ingress(), |
| 183 | egress(), |
| 184 | compute_checksum_control(), |
| 185 | deparser()) main; |