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
19 #define BIHASH_TYPE _40_8
20 #define BIHASH_KVP_PER_PAGE 4
22 #ifndef __included_bihash_40_8_h__
23 #define __included_bihash_40_8_h__
25 #include <vppinfra/crc32.h>
26 #include <vppinfra/heap.h>
27 #include <vppinfra/format.h>
28 #include <vppinfra/pool.h>
29 #include <vppinfra/xxhash.h>
35 } clib_bihash_kv_40_8_t;
38 clib_bihash_is_free_40_8 (const clib_bihash_kv_40_8_t * v)
40 /* Free values are clib_memset to 0xff, check a bit... */
41 if (v->key[0] == ~0ULL && v->value == ~0ULL)
47 clib_bihash_hash_40_8 (const clib_bihash_kv_40_8_t * v)
49 #ifdef clib_crc32c_uses_intrinsics
50 return clib_crc32c ((u8 *) v->key, 40);
52 u64 tmp = v->key[0] ^ v->key[1] ^ v->key[2] ^ v->key[3] ^ v->key[4];
53 return clib_xxhash (tmp);
58 format_bihash_kvp_40_8 (u8 * s, va_list * args)
60 clib_bihash_kv_40_8_t *v = va_arg (*args, clib_bihash_kv_40_8_t *);
62 s = format (s, "key %llu %llu %llu %llu %llu value %llu", v->key[0],
63 v->key[1], v->key[2], v->key[3], v->key[4], v->value);
68 clib_bihash_key_compare_40_8 (u64 * a, u64 * b)
70 #if defined (CLIB_HAVE_VEC512)
72 v = u64x8_load_unaligned (a) ^ u64x8_load_unaligned (b);
73 return (u64x8_is_zero_mask (v) & 0x1f) == 0;
74 #elif defined (CLIB_HAVE_VEC256)
75 u64x4 v = { a[4] ^ b[4], 0, 0, 0 };
76 v |= u64x4_load_unaligned (a) ^ u64x4_load_unaligned (b);
77 return u64x4_is_all_zero (v);
78 #elif defined(CLIB_HAVE_VEC128) && defined(CLIB_HAVE_VEC128_UNALIGNED_LOAD_STORE)
79 u64x2 v = { a[4] ^ b[4], 0 };
80 v |= u64x2_load_unaligned (a) ^ u64x2_load_unaligned (b);
81 v |= u64x2_load_unaligned (a + 2) ^ u64x2_load_unaligned (b + 2);
82 return u64x2_is_all_zero (v);
84 return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2]) | (a[3] ^ b[3])
85 | (a[4] ^ b[4])) == 0;
89 #undef __included_bihash_template_h__
90 #include <vppinfra/bihash_template.h>
92 #endif /* __included_bihash_40_8_h__ */
95 * fd.io coding-style-patch-verification: ON
98 * eval: (c-set-style "gnu")