Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2016 Cisco and/or its affiliates.
       3             :  * Licensed under the Apache License, Version 2.0 (the "License");
       4             :  * you may not use this file except in compliance with the License.
       5             :  * You may obtain a copy of the License at:
       6             :  *
       7             :  *     http://www.apache.org/licenses/LICENSE-2.0
       8             :  *
       9             :  * Unless required by applicable law or agreed to in writing, software
      10             :  * distributed under the License is distributed on an "AS IS" BASIS,
      11             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             :  * See the License for the specific language governing permissions and
      13             :  * limitations under the License.
      14             :  */
      15             : 
      16             : #ifndef __MFIB_ITF_H__
      17             : #define __MFIB_ITF_H__
      18             : 
      19             : #include <vlib/vlib.h>
      20             : #include <vnet/mfib/mfib_types.h>
      21             : 
      22             : /**
      23             :  * @brief An interface associated with a particular MFIB entry
      24             :  */
      25             : typedef struct mfib_itf_t_
      26             : {
      27             :     /**
      28             :      * Required for pool_get_aligned
      29             :      */
      30             :     CLIB_CACHE_LINE_ALIGN_MARK(cacheline0);
      31             : 
      32             :     /**
      33             :      * @brief Forwarding Flags on the entry - checked in the data-path
      34             :      */
      35             :     mfib_itf_flags_t mfi_flags;
      36             : 
      37             :     /**
      38             :      * The SW IF index that this MFIB interface represents
      39             :      */
      40             :     u32 mfi_sw_if_index;
      41             : 
      42             :     /**
      43             :      * The index of the signal in the pending list
      44             :      */
      45             :     u32 mfi_si;
      46             : 
      47             :     /**
      48             :      * A hash table of path-inidices that are contributing flags to this interface.
      49             :      * Since paths with next-hops can be on the same interface and each of those
      50             :      * paths can contribute different flags, we need to maintain the flag
      51             :      * contribution from each path, and use a combination for forwarding.
      52             :      */
      53             :     uword *mfi_hash;
      54             : } mfib_itf_t;
      55             : 
      56             : /**
      57             :  * update an interface from a path.
      58             :  * returns 1 if the entry is removed, i.e. has no flags left, as a result
      59             :  * of the update.
      60             :  */
      61             : extern int mfib_itf_update(mfib_itf_t *itf,
      62             :                            fib_node_index_t path_index,
      63             :                            mfib_itf_flags_t mfi_flags);
      64             : 
      65             : extern index_t mfib_itf_create(fib_node_index_t path_index,
      66             :                                mfib_itf_flags_t mfi_flags);
      67             : 
      68             : extern void mfib_itf_delete(mfib_itf_t *itf);
      69             : 
      70             : extern u8 *format_mfib_itf(u8 * s, va_list * args);
      71             : 
      72             : extern void mfib_itf_mac_add(mfib_itf_t *itf,
      73             :                              const mfib_prefix_t *pfx);
      74             : extern void mfib_itf_mac_del(mfib_itf_t *itf,
      75             :                              const mfib_prefix_t *pfx);
      76             : 
      77             : extern mfib_itf_t *mfib_itf_pool;
      78             : 
      79             : /**
      80             :  * Get the MFIB interface representation
      81             :  */
      82             : static inline mfib_itf_t *
      83       53328 : mfib_itf_get (index_t mi)
      84             : {
      85       53328 :     return (pool_elt_at_index(mfib_itf_pool, mi));
      86             : }
      87             : 
      88             : static inline index_t
      89          11 : mfib_itf_get_index (const mfib_itf_t *mfi)
      90             : {
      91          11 :     return (mfi - mfib_itf_pool);
      92             : }
      93             : 
      94             : #endif