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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
* 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.
*/
#include <vnet/ip/ip.h>
#include <vnet/dpo/classify_dpo.h>
#include <vnet/mpls/mpls.h>
/*
* pool of all MPLS Label DPOs
*/
classify_dpo_t *classify_dpo_pool;
static classify_dpo_t *
classify_dpo_alloc (void)
{
classify_dpo_t *cd;
vlib_main_t *vm;
u8 did_barrier_sync;
dpo_pool_barrier_sync (vm, classify_dpo_pool, did_barrier_sync);
pool_get_aligned(classify_dpo_pool, cd, CLIB_CACHE_LINE_BYTES);
dpo_pool_barrier_release (vm, did_barrier_sync);
clib_memset(cd, 0, sizeof(*cd));
return (cd);
}
static index_t
classify_dpo_get_index (classify_dpo_t *cd)
{
return (cd - classify_dpo_pool);
}
index_t
classify_dpo_create (dpo_proto_t proto,
u32 classify_table_index)
{
classify_dpo_t *cd;
cd = classify_dpo_alloc();
cd->cd_proto = proto;
cd->cd_table_index = classify_table_index;
return (classify_dpo_get_index(cd));
}
u8*
format_classify_dpo (u8 *s, va_list *args)
{
index_t index = va_arg (*args, index_t);
CLIB_UNUSED(u32 indent) = va_arg (*args, u32);
classify_dpo_t *cd;
cd = classify_dpo_get(index);
return (format(s, "%U-classify:[%d]:table:%d",
format_dpo_proto, cd->cd_proto,
index, cd->cd_table_index));
}
static void
classify_dpo_lock (dpo_id_t *dpo)
{
classify_dpo_t *cd;
cd = classify_dpo_get(dpo->dpoi_index);
cd->cd_locks++;
}
static void
classify_dpo_unlock (dpo_id_t *dpo)
{
classify_dpo_t *cd;
cd = classify_dpo_get(dpo->dpoi_index);
cd->cd_locks--;
if (0 == cd->cd_locks)
{
pool_put(classify_dpo_pool, cd);
}
}
static void
classify_dpo_mem_show (void)
{
fib_show_memory_usage("Classify",
pool_elts(classify_dpo_pool),
pool_len(classify_dpo_pool),
sizeof(classify_dpo_t));
}
const static dpo_vft_t cd_vft = {
.dv_lock = classify_dpo_lock,
.dv_unlock = classify_dpo_unlock,
.dv_format = format_classify_dpo,
.dv_mem_show = classify_dpo_mem_show,
};
const static char* const classify_ip4_nodes[] =
{
"ip4-classify",
NULL,
};
const static char* const classify_ip6_nodes[] =
{
"ip6-classify",
NULL,
};
const static char* const * const classify_nodes[DPO_PROTO_NUM] =
{
[DPO_PROTO_IP4] = classify_ip4_nodes,
[DPO_PROTO_IP6] = classify_ip6_nodes,
[DPO_PROTO_MPLS] = NULL,
};
void
classify_dpo_module_init (void)
{
dpo_register(DPO_CLASSIFY, &cd_vft, classify_nodes);
}
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