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
|
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2015 Intel Corporation
*/
/* Functions to compare multiple of 16 byte keys (up to 128 bytes) */
static int
rte_hash_k16_cmp_eq(const void *key1, const void *key2, size_t key_len __rte_unused)
{
const __m128i k1 = _mm_loadu_si128((const __m128i *) key1);
const __m128i k2 = _mm_loadu_si128((const __m128i *) key2);
const __m128i x = _mm_xor_si128(k1, k2);
return !_mm_test_all_zeros(x, x);
}
static int
rte_hash_k32_cmp_eq(const void *key1, const void *key2, size_t key_len)
{
return rte_hash_k16_cmp_eq(key1, key2, key_len) ||
rte_hash_k16_cmp_eq((const char *) key1 + 16,
(const char *) key2 + 16, key_len);
}
static int
rte_hash_k48_cmp_eq(const void *key1, const void *key2, size_t key_len)
{
return rte_hash_k16_cmp_eq(key1, key2, key_len) ||
rte_hash_k16_cmp_eq((const char *) key1 + 16,
(const char *) key2 + 16, key_len) ||
rte_hash_k16_cmp_eq((const char *) key1 + 32,
(const char *) key2 + 32, key_len);
}
static int
rte_hash_k64_cmp_eq(const void *key1, const void *key2, size_t key_len)
{
return rte_hash_k32_cmp_eq(key1, key2, key_len) ||
rte_hash_k32_cmp_eq((const char *) key1 + 32,
(const char *) key2 + 32, key_len);
}
static int
rte_hash_k80_cmp_eq(const void *key1, const void *key2, size_t key_len)
{
return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
rte_hash_k16_cmp_eq((const char *) key1 + 64,
(const char *) key2 + 64, key_len);
}
static int
rte_hash_k96_cmp_eq(const void *key1, const void *key2, size_t key_len)
{
return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
rte_hash_k32_cmp_eq((const char *) key1 + 64,
(const char *) key2 + 64, key_len);
}
static int
rte_hash_k112_cmp_eq(const void *key1, const void *key2, size_t key_len)
{
return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
rte_hash_k32_cmp_eq((const char *) key1 + 64,
(const char *) key2 + 64, key_len) ||
rte_hash_k16_cmp_eq((const char *) key1 + 96,
(const char *) key2 + 96, key_len);
}
static int
rte_hash_k128_cmp_eq(const void *key1, const void *key2, size_t key_len)
{
return rte_hash_k64_cmp_eq(key1, key2, key_len) ||
rte_hash_k64_cmp_eq((const char *) key1 + 64,
(const char *) key2 + 64, key_len);
}
|
