/* * 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