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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.
*/
#ifndef __BIER_BIFT_TABLE_H__
#define __BIER_BIFT_TABLE_H__
#include <vnet/dpo/dpo.h>
#include <vnet/bier/bier_types.h>
#include <vnet/mpls/packet.h>
/*
* the lookup table used to get from a BFIT_ID to a load-balance.
* As per-draft draft-ietf-bier-mpls-encapsulation-10 this isthe
* use case for non-MPLS networks
*/
#define BIER_BIFT_N_ENTRIES (1 << 20)
typedef struct bier_bfit_table_t_
{
/**
* Forwarding information for each BIFT ID
*/
dpo_id_t bblt_dpos[BIER_BIFT_N_ENTRIES];
/**
* The number of entries in the table
*/
u32 bblt_n_entries;
} bier_bfit_table_t;
extern void bier_bift_table_entry_add(bier_bift_id_t id,
const dpo_id_t *dpo);
extern void bier_bift_table_entry_remove(bier_bift_id_t id);
/**
* Global BIFT table
*/
extern bier_bfit_table_t *bier_bift_table;
static inline const dpo_id_t*
bier_bift_dp_lookup (bier_bift_id_t key_host_order)
{
return (&bier_bift_table->bblt_dpos[vnet_mpls_uc_get_label(key_host_order)]);
}
#endif
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