blob: 3fdf1847861c9161cfea6507f4c96222dc8f320f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/* SPDX-License-Identifier: Apache-2.0
* Copyright(c) 2021 Cisco Systems, Inc.
*/
#undef BIHASH_TYPE
#undef BIHASH_KVP_PER_PAGE
#undef BIHASH_32_64_SVM
#undef BIHASH_ENABLE_STATS
#undef BIHASH_KVP_AT_BUCKET_LEVEL
#undef BIHASH_LAZY_INSTANTIATE
#undef BIHASH_BUCKET_PREFETCH_CACHE_LINES
#undef BIHASH_USE_HEAP
#define BIHASH_TYPE _12_4
#define BIHASH_KVP_PER_PAGE 4
#define BIHASH_KVP_AT_BUCKET_LEVEL 0
#define BIHASH_LAZY_INSTANTIATE 1
#define BIHASH_BUCKET_PREFETCH_CACHE_LINES 1
#define BIHASH_USE_HEAP 1
#ifndef __included_bihash_12_4_h__
#define __included_bihash_12_4_h__
#include <vppinfra/crc32.h>
#include <vppinfra/heap.h>
#include <vppinfra/format.h>
#include <vppinfra/pool.h>
#include <vppinfra/xxhash.h>
typedef union
{
struct
{
u32 key[3];
u32 value;
};
u64 as_u64[2];
} clib_bihash_kv_12_4_t;
static inline void
clib_bihash_mark_free_12_4 (clib_bihash_kv_12_4_t *v)
{
v->value = 0xFEEDFACE;
}
static inline int
clib_bihash_is_free_12_4 (const clib_bihash_kv_12_4_t *v)
{
if (v->value == 0xFEEDFACE)
return 1;
return 0;
}
static inline u64
clib_bihash_hash_12_4 (const clib_bihash_kv_12_4_t *v)
{
#ifdef clib_crc32c_uses_intrinsics
return clib_crc32c ((u8 *) v->key, 12);
#else
u64 tmp = v->as_u64[0] ^ v->key[2];
return clib_xxhash (tmp);
#endif
}
static inline u8 *
format_bihash_kvp_12_4 (u8 *s, va_list *args)
{
clib_bihash_kv_12_4_t *v = va_arg (*args, clib_bihash_kv_12_4_t *);
s = format (s, "key %u %u %u value %u", v->key[0], v->key[1], v->key[2],
v->value);
return s;
}
static inline int
clib_bihash_key_compare_12_4 (u32 *a, u32 *b)
{
#if defined(CLIB_HAVE_VEC128)
u32x4 v = (*(u32x4u *) a) ^ (*(u32x4u *) b);
v[3] = 0;
return u32x4_is_all_zero (v);
#else
return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | (a[2] ^ b[2])) == 0;
#endif
}
#undef __included_bihash_template_h__
#include <vppinfra/bihash_template.h>
#endif /* __included_bihash_12_4_h__ */
|
