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/*
* 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.
*/
/* -*- P4_16 -*- */
#ifndef __INT_TRANSIT__
#define __INT_TRANSIT__
control process_int_transit (
inout parsed_headers_t hdr,
inout fabric_metadata_t fabric_metadata,
inout standard_metadata_t standard_metadata) {
direct_counter(CounterType.packets_and_bytes) counter_int_insert;
direct_counter(CounterType.packets_and_bytes) counter_int_inst_0003;
direct_counter(CounterType.packets_and_bytes) counter_int_inst_0407;
action int_update_total_hop_cnt() {
hdr.int_header.total_hop_cnt = hdr.int_header.total_hop_cnt + 1;
}
action int_transit(switch_id_t switch_id) {
fabric_metadata.int_meta.switch_id = switch_id;
fabric_metadata.int_meta.insert_byte_cnt = (bit<16>) hdr.int_header.ins_cnt << 2;
}
/* Instr Bit 0 */
action int_set_header_0() { //switch_id
hdr.int_switch_id.setValid();
hdr.int_switch_id.switch_id = fabric_metadata.int_meta.switch_id;
}
action int_set_header_1() { //port_ids
hdr.int_port_ids.setValid();
hdr.int_port_ids.ingress_port_id =
(bit<16>) standard_metadata.ingress_port;
hdr.int_port_ids.egress_port_id =
(bit<16>) standard_metadata.egress_port;
}
action int_set_header_2() { //hop_latency
hdr.int_hop_latency.setValid();
hdr.int_hop_latency.hop_latency =
(bit<32>) standard_metadata.deq_timedelta;
}
action int_set_header_3() { //q_occupancy
// TODO: Support egress queue ID
hdr.int_q_occupancy.setValid();
hdr.int_q_occupancy.q_id =
0;
// (bit<8>) standard_metadata.egress_qid;
hdr.int_q_occupancy.q_occupancy =
(bit<24>) standard_metadata.deq_qdepth;
}
action int_set_header_4() { //ingress_tstamp
hdr.int_ingress_tstamp.setValid();
hdr.int_ingress_tstamp.ingress_tstamp =
(bit<32>) standard_metadata.enq_timestamp;
}
action int_set_header_5() { //egress_timestamp
hdr.int_egress_tstamp.setValid();
hdr.int_egress_tstamp.egress_tstamp =
(bit<32>) standard_metadata.enq_timestamp +
(bit<32>) standard_metadata.deq_timedelta;
}
action int_set_header_6() { //q_congestion
// TODO: implement queue congestion support in BMv2
// TODO: update egress queue ID
hdr.int_q_congestion.setValid();
hdr.int_q_congestion.q_id =
0;
// (bit<8>) standard_metadata.egress_qid;
hdr.int_q_congestion.q_congestion =
// (bit<24>) queueing_metadata.deq_congestion;
0;
}
action int_set_header_7() { //egress_port_tx_utilization
// TODO: implement tx utilization support in BMv2
hdr.int_egress_tx_util.setValid();
hdr.int_egress_tx_util.egress_port_tx_util =
// (bit<32>) queueing_metadata.tx_utilization;
0;
}
/* action function for bits 0-3 combinations, 0 is msb, 3 is lsb */
/* Each bit set indicates that corresponding INT header should be added */
action int_set_header_0003_i0() {
}
action int_set_header_0003_i1() {
int_set_header_3();
}
action int_set_header_0003_i2() {
int_set_header_2();
}
action int_set_header_0003_i3() {
int_set_header_3();
int_set_header_2();
}
action int_set_header_0003_i4() {
int_set_header_1();
}
action int_set_header_0003_i5() {
int_set_header_3();
int_set_header_1();
}
action int_set_header_0003_i6() {
int_set_header_2();
int_set_header_1();
}
action int_set_header_0003_i7() {
int_set_header_3();
int_set_header_2();
int_set_header_1();
}
action int_set_header_0003_i8() {
int_set_header_0();
}
action int_set_header_0003_i9() {
int_set_header_3();
int_set_header_0();
}
action int_set_header_0003_i10() {
int_set_header_2();
int_set_header_0();
}
action int_set_header_0003_i11() {
int_set_header_3();
int_set_header_2();
int_set_header_0();
}
action int_set_header_0003_i12() {
int_set_header_1();
int_set_header_0();
}
action int_set_header_0003_i13() {
int_set_header_3();
int_set_header_1();
int_set_header_0();
}
action int_set_header_0003_i14() {
int_set_header_2();
int_set_header_1();
int_set_header_0();
}
action int_set_header_0003_i15() {
int_set_header_3();
int_set_header_2();
int_set_header_1();
int_set_header_0();
}
/* action function for bits 4-7 combinations, 4 is msb, 7 is lsb */
action int_set_header_0407_i0() {
}
action int_set_header_0407_i1() {
int_set_header_7();
}
action int_set_header_0407_i2() {
int_set_header_6();
}
action int_set_header_0407_i3() {
int_set_header_7();
int_set_header_6();
}
action int_set_header_0407_i4() {
int_set_header_5();
}
action int_set_header_0407_i5() {
int_set_header_7();
int_set_header_5();
}
action int_set_header_0407_i6() {
int_set_header_6();
int_set_header_5();
}
action int_set_header_0407_i7() {
int_set_header_7();
int_set_header_6();
int_set_header_5();
}
action int_set_header_0407_i8() {
int_set_header_4();
}
action int_set_header_0407_i9() {
int_set_header_7();
int_set_header_4();
}
action int_set_header_0407_i10() {
int_set_header_6();
int_set_header_4();
}
action int_set_header_0407_i11() {
int_set_header_7();
int_set_header_6();
int_set_header_4();
}
action int_set_header_0407_i12() {
int_set_header_5();
int_set_header_4();
}
action int_set_header_0407_i13() {
int_set_header_7();
int_set_header_5();
int_set_header_4();
}
action int_set_header_0407_i14() {
int_set_header_6();
int_set_header_5();
int_set_header_4();
}
action int_set_header_0407_i15() {
int_set_header_7();
int_set_header_6();
int_set_header_5();
int_set_header_4();
}
table tb_int_insert {
key = {}
actions = {
int_transit;
}
counters = counter_int_insert;
size = 2;
}
/* Table to process instruction bits 0-3 */
table tb_int_inst_0003 {
key = {
hdr.int_header.instruction_mask_0003 : exact;
}
actions = {
int_set_header_0003_i0;
int_set_header_0003_i1;
int_set_header_0003_i2;
int_set_header_0003_i3;
int_set_header_0003_i4;
int_set_header_0003_i5;
int_set_header_0003_i6;
int_set_header_0003_i7;
int_set_header_0003_i8;
int_set_header_0003_i9;
int_set_header_0003_i10;
int_set_header_0003_i11;
int_set_header_0003_i12;
int_set_header_0003_i13;
int_set_header_0003_i14;
int_set_header_0003_i15;
}
counters = counter_int_inst_0003;
size = 16;
}
/* Table to process instruction bits 4-7 */
table tb_int_inst_0407 {
key = {
hdr.int_header.instruction_mask_0407 : exact;
}
actions = {
int_set_header_0407_i0;
int_set_header_0407_i1;
int_set_header_0407_i2;
int_set_header_0407_i3;
int_set_header_0407_i4;
int_set_header_0407_i5;
int_set_header_0407_i6;
int_set_header_0407_i7;
int_set_header_0407_i8;
int_set_header_0407_i9;
int_set_header_0407_i10;
int_set_header_0407_i11;
int_set_header_0407_i12;
int_set_header_0407_i13;
int_set_header_0407_i14;
int_set_header_0407_i15;
}
counters = counter_int_inst_0407;
size = 16;
}
apply {
tb_int_insert.apply();
tb_int_inst_0003.apply();
tb_int_inst_0407.apply();
int_update_total_hop_cnt();
}
}
control process_int_outer_encap (
inout parsed_headers_t hdr,
inout fabric_metadata_t fabric_metadata,
inout standard_metadata_t standard_metadata) {
action int_update_ipv4() {
hdr.ipv4.total_len = hdr.ipv4.total_len + fabric_metadata.int_meta.insert_byte_cnt;
}
action int_update_udp() {
hdr.udp.len = hdr.udp.len + fabric_metadata.int_meta.insert_byte_cnt;
}
action int_update_shim() {
hdr.intl4_shim.len = hdr.intl4_shim.len + (bit<8>)hdr.int_header.ins_cnt;
}
apply {
if (hdr.ipv4.isValid()) {
int_update_ipv4();
}
if (hdr.udp.isValid()) {
int_update_udp();
}
if (hdr.intl4_shim.isValid()) {
int_update_shim();
}
}
}
#endif