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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.
*/
#ifndef __WCMP__
#define __WCMP__
#include "headers.p4"
#include "defines.p4"
control wcmp_control(inout headers_t hdr,
inout local_metadata_t local_metadata,
inout standard_metadata_t standard_metadata) {
direct_counter(CounterType.packets_and_bytes) wcmp_table_counter;
action_selector(HashAlgorithm.crc16, 32w64, 32w16) wcmp_selector;
action set_egress_port(port_t port) {
standard_metadata.egress_spec = port;
}
table wcmp_table {
support_timeout = false;
key = {
local_metadata.next_hop_id : exact;
hdr.ipv4.src_addr : selector;
hdr.ipv4.dst_addr : selector;
hdr.ipv4.protocol : selector;
local_metadata.l4_src_port : selector;
local_metadata.l4_dst_port : selector;
}
actions = {
set_egress_port;
}
implementation = wcmp_selector;
counters = wcmp_table_counter;
}
apply {
if (local_metadata.next_hop_id != 0) {
wcmp_table.apply();
}
}
}
#endif