Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2018 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 __BIER_FWD_H__
      17             : #define __BIER_FWD_H__
      18             : 
      19             : #include <vnet/bier/bier_types.h>
      20             : #include <vnet/bier/bier_hdr_inlines.h>
      21             : 
      22             : static_always_inline u32
      23        1173 : bier_compute_flow_hash (const bier_hdr_t *hdr)
      24             : {
      25        1173 :     u32 first_word = clib_net_to_host_u32(hdr->bh_first_word);
      26             : 
      27             :     return ((first_word &
      28        1173 :              BIER_HDR_ENTROPY_FIELD_MASK) >>
      29             :             BIER_HDR_ENTROPY_FIELD_SHIFT);
      30             : }
      31             : 
      32             : #endif