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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 __MFIB_ITF_H__
#define __MFIB_ITF_H__
#include <vlib/vlib.h>
#include <vnet/mfib/mfib_types.h>
/**
* @brief An interface associated with a particular MFIB entry
*/
typedef struct mfib_itf_t_
{
/**
* Required for pool_get_aligned
*/
CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
/**
* @brief Forwarding Flags on the entry - checked in the data-path
*/
mfib_itf_flags_t mfi_flags;
/**
* The SW IF index that this MFIB interface represents
*/
u32 mfi_sw_if_index;
/**
* The index of the signal in the pending list
*/
u32 mfi_si;
/**
* A hash table of path-inidices that are contributing flags to this interface.
* Since paths with next-hops can be on the same interface and each of those
* paths can contribute different flags, we need to maintain the flag
* contribution from each path, and use a combination for forwarding.
*/
uword *mfi_hash;
} mfib_itf_t;
/**
* update an interface from a path.
* returns 1 if the entry is removed, i.e. has no flags left, as a result
* of the update.
*/
extern int mfib_itf_update(mfib_itf_t *itf,
fib_node_index_t path_index,
mfib_itf_flags_t mfi_flags);
extern index_t mfib_itf_create(fib_node_index_t path_index,
mfib_itf_flags_t mfi_flags);
extern void mfib_itf_delete(mfib_itf_t *itf);
extern u8 *format_mfib_itf(u8 * s, va_list * args);
extern mfib_itf_t *mfib_itf_pool;
/**
* Get the MFIB interface representation
*/
static inline mfib_itf_t *
mfib_itf_get (index_t mi)
{
return (pool_elt_at_index(mfib_itf_pool, mi));
}
static inline index_t
mfib_itf_get_index (const mfib_itf_t *mfi)
{
return (mfi - mfib_itf_pool);
}
#endif
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