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_56
25 #define BIHASH_KVP_PER_PAGE 2
26 #define BIHASH_KVP_AT_BUCKET_LEVEL 1
27 #define BIHASH_LAZY_INSTANTIATE 1
28 #define BIHASH_BUCKET_PREFETCH_CACHE_LINES 2
30 #ifndef __included_bihash_40_56_h__
31 #define __included_bihash_40_56_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_56_t;
46 clib_bihash_is_free_40_56 (const clib_bihash_kv_40_56_t *v)
48 /* Free values are clib_memset to 0xff, check a bit... */
49 if (v->key[0] == ~0ULL && v->value[0] == ~0ULL)
55 clib_bihash_hash_40_56 (const clib_bihash_kv_40_56_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_56 (u8 *s, va_list *args)
68 clib_bihash_kv_40_56_t *v = va_arg (*args, clib_bihash_kv_40_56_t *);
71 "key %llu %llu %llu %llu %llu"
72 "value %llu %llu %llu %llu %llu %llu %llu",
73 v->key[0], v->key[1], v->key[2], v->key[3], v->key[4],
74 v->value[0], v->value[1], v->value[2], v->value[3], v->value[4],
75 v->value[5], v->value[6]);
80 clib_bihash_key_compare_40_56 (u64 *a, u64 *b)
82 #if defined (CLIB_HAVE_VEC512)
84 v = u64x8_load_unaligned (a) ^ u64x8_load_unaligned (b);
85 return (u64x8_is_zero_mask (v) & 0x1f) == 0;
86 #elif defined (CLIB_HAVE_VEC256)
87 u64x4 v = { a[4] ^ b[4], 0, 0, 0 };
88 v |= u64x4_load_unaligned (a) ^ u64x4_load_unaligned (b);
89 return u64x4_is_all_zero (v);
90 #elif defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
91 u64x2 v = { a[4] ^ b[4], 0 };
92 v |= u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
93 v |= u64x2_load_unaligned (a + 2) ^ u64x2_load_unaligned (b + 2);
94 return u64x2_is_all_zero (v);
96 return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]) | (a[3] ^ b[3])
97 | (a[4] ^ b[4])) == 0;
101 #undef __included_bihash_template_h__
102 #include <vppinfra/bihash_template.h>
104 typedef clib_bihash_kv_40_56_t cnat_bihash_kv_t;
105 typedef clib_bihash_40_56_t cnat_bihash_t;
107 #define cnat_bihash_search_i2_hash clib_bihash_search_inline_2_with_hash_40_56
108 #define cnat_bihash_search_i2 clib_bihash_search_inline_2_40_56
109 #define cnat_bihash_add_del clib_bihash_add_del_40_56
110 #define cnat_bihash_hash clib_bihash_hash_40_56
111 #define cnat_bihash_prefetch_bucket clib_bihash_prefetch_bucket_40_56
112 #define cnat_bihash_prefetch_data clib_bihash_prefetch_data_40_56
114 #endif /* __included_bihash_40_56_h__ */
117 * fd.io coding-style-patch-verification: ON
120 * eval: (c-set-style "gnu")