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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
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
24 #define BIHASH_TYPE _40_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
30 #ifndef __included_bihash_40_8_h__
31 #define __included_bihash_40_8_h__
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>
43 } clib_bihash_kv_40_8_t;
46 clib_bihash_is_free_40_8 (const clib_bihash_kv_40_8_t * v)
48 /* Free values are clib_memset to 0xff, check a bit... */
49 if (v->key[0] == ~0ULL && v->value == ~0ULL)
55 clib_bihash_hash_40_8 (const clib_bihash_kv_40_8_t * v)
57 #ifdef clib_crc32c_uses_intrinsics
58 return clib_crc32c ((u8 *) v->key, 40);
60 u64 tmp = v->key[0] ^ v->key[1] ^ v->key[2] ^ v->key[3] ^ v->key[4];
61 return clib_xxhash (tmp);
66 format_bihash_kvp_40_8 (u8 * s, va_list * args)
68 clib_bihash_kv_40_8_t *v = va_arg (*args, clib_bihash_kv_40_8_t *);
70 s = format (s, "key %llu %llu %llu %llu %llu value %llu", v->key[0],
71 v->key[1], v->key[2], v->key[3], v->key[4], v->value);
76 clib_bihash_key_compare_40_8 (u64 * a, u64 * b)
78 #if defined (CLIB_HAVE_VEC512)
80 v = u64x8_load_unaligned (a) ^ u64x8_load_unaligned (b);
81 return (u64x8_is_zero_mask (v) & 0x1f) == 0;
82 #elif defined (CLIB_HAVE_VEC256)
83 u64x4 v = { a[4] ^ b[4], 0, 0, 0 };
84 v |= u64x4_load_unaligned (a) ^ u64x4_load_unaligned (b);
85 return u64x4_is_all_zero (v);
86 #elif defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
87 u64x2 v = { a[4] ^ b[4], 0 };
88 v |= u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
89 v |= u64x2_load_unaligned (a + 2) ^ u64x2_load_unaligned (b + 2);
90 return u64x2_is_all_zero (v);
92 return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]) | (a[3] ^ b[3])
93 | (a[4] ^ b[4])) == 0;
97 #undef __included_bihash_template_h__
98 #include <vppinfra/bihash_template.h>
100 #endif /* __included_bihash_40_8_h__ */
103 * fd.io coding-style-patch-verification: ON
106 * eval: (c-set-style "gnu")