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             : #undef BIHASH_TYPE
      17             : #undef BIHASH_KVP_PER_PAGE
      18             : #undef BIHASH_32_64_SVM
      19             : #undef BIHASH_ENABLE_STATS
      20             : #undef BIHASH_KVP_AT_BUCKET_LEVEL
      21             : #undef BIHASH_LAZY_INSTANTIATE
      22             : #undef BIHASH_BUCKET_PREFETCH_CACHE_LINES
      23             : 
      24             : #define BIHASH_TYPE _48_8
      25             : #define BIHASH_KVP_PER_PAGE 4
      26             : #define BIHASH_KVP_AT_BUCKET_LEVEL 0
      27             : #define BIHASH_LAZY_INSTANTIATE 1
      28             : #define BIHASH_BUCKET_PREFETCH_CACHE_LINES 1
      29             : 
      30             : #ifndef __included_bihash_48_8_h__
      31             : #define __included_bihash_48_8_h__
      32             : 
      33             : #include <vppinfra/crc32.h>
      34             : #include <vppinfra/heap.h>
      35             : #include <vppinfra/format.h>
      36             : #include <vppinfra/pool.h>
      37             : #include <vppinfra/xxhash.h>
      38             : 
      39             : typedef struct
      40             : {
      41             :   u64 key[6];
      42             :   u64 value;
      43             : } clib_bihash_kv_48_8_t;
      44             : 
      45             : static inline void
      46      143837 : clib_bihash_mark_free_48_8 (clib_bihash_kv_48_8_t *v)
      47             : {
      48      143837 :   v->value = 0xFEEDFACE8BADF00DULL;
      49      143837 : }
      50             : 
      51             : static inline int
      52      195506 : clib_bihash_is_free_48_8 (const clib_bihash_kv_48_8_t * v)
      53             : {
      54      195506 :   if (v->value == 0xFEEDFACE8BADF00DULL)
      55        9576 :     return 1;
      56      185930 :   return 0;
      57             : }
      58             : 
      59             : static inline u64
      60      182354 : clib_bihash_hash_48_8 (const clib_bihash_kv_48_8_t * v)
      61             : {
      62             : #ifdef clib_crc32c_uses_intrinsics
      63      182354 :   return clib_crc32c ((u8 *) v->key, 48);
      64             : #else
      65             :   u64 tmp = v->key[0] ^ v->key[1] ^ v->key[2] ^ v->key[3] ^ v->key[4]
      66             :     ^ v->key[5];
      67             :   return clib_xxhash (tmp);
      68             : #endif
      69             : }
      70             : 
      71             : static inline u8 *
      72           0 : format_bihash_kvp_48_8 (u8 * s, va_list * args)
      73             : {
      74           0 :   clib_bihash_kv_48_8_t *v = va_arg (*args, clib_bihash_kv_48_8_t *);
      75             : 
      76           0 :   s = format (s, "key %llu %llu %llu %llu %llu %llu value %llu", v->key[0],
      77             :               v->key[1], v->key[2], v->key[3], v->key[4], v->key[5],
      78             :               v->value);
      79           0 :   return s;
      80             : }
      81             : 
      82             : static inline int
      83      124502 : clib_bihash_key_compare_48_8 (u64 * a, u64 * b)
      84             : {
      85             : #if defined (CLIB_HAVE_VEC512)
      86           0 :   return u64x8_is_equal (u64x8_mask_load_zero (a, 0x3f),
      87             :                          u64x8_mask_load_zero (b, 0x3f));
      88             : #elif defined (CLIB_HAVE_VEC256)
      89        9348 :   u64x4 v = { 0 };
      90       18696 :   v = u64x4_insert_lo (v, u64x2_load_unaligned (a + 4) ^
      91        9348 :                        u64x2_load_unaligned (b + 4));
      92        9348 :   v |= u64x4_load_unaligned (a) ^ u64x4_load_unaligned (b);
      93        9348 :   return u64x4_is_all_zero (v);
      94             : #elif defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
      95             :   u64x2 v;
      96      115154 :   v = u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
      97      115153 :   v |= u64x2_load_unaligned (a + 2) ^ u64x2_load_unaligned (b + 2);
      98      115153 :   v |= u64x2_load_unaligned (a + 4) ^ u64x2_load_unaligned (b + 4);
      99      115152 :   return u64x2_is_all_zero (v);
     100             : #else
     101             :   return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]) | (a[3] ^ b[3])
     102             :           | (a[4] ^ b[4]) | (a[5] ^ b[5])) == 0;
     103             : #endif
     104             : }
     105             : 
     106             : #undef __included_bihash_template_h__
     107             : #include <vppinfra/bihash_template.h>
     108             : 
     109             : #endif /* __included_bihash_48_8_h__ */
     110             : 
     111             : /*
     112             :  * fd.io coding-style-patch-verification: ON
     113             :  *
     114             :  * Local Variables:
     115             :  * eval: (c-set-style "gnu")
     116             :  * End:
     117             :  */