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1 | /* SPDX-License-Identifier: BSD-3-Clause |
2 | * Copyright(c) 2015 Intel Corporation | |
7c673cae FG |
3 | */ |
4 | ||
9f95a23c TL |
5 | #include <rte_vect.h> |
6 | ||
7c673cae FG |
7 | /* Functions to compare multiple of 16 byte keys (up to 128 bytes) */ |
8 | static int | |
9 | rte_hash_k16_cmp_eq(const void *key1, const void *key2, size_t key_len __rte_unused) | |
10 | { | |
11 | const __m128i k1 = _mm_loadu_si128((const __m128i *) key1); | |
12 | const __m128i k2 = _mm_loadu_si128((const __m128i *) key2); | |
7c673cae FG |
13 | const __m128i x = _mm_xor_si128(k1, k2); |
14 | ||
15 | return !_mm_test_all_zeros(x, x); | |
7c673cae FG |
16 | } |
17 | ||
18 | static int | |
19 | rte_hash_k32_cmp_eq(const void *key1, const void *key2, size_t key_len) | |
20 | { | |
21 | return rte_hash_k16_cmp_eq(key1, key2, key_len) || | |
22 | rte_hash_k16_cmp_eq((const char *) key1 + 16, | |
23 | (const char *) key2 + 16, key_len); | |
24 | } | |
25 | ||
26 | static int | |
27 | rte_hash_k48_cmp_eq(const void *key1, const void *key2, size_t key_len) | |
28 | { | |
29 | return rte_hash_k16_cmp_eq(key1, key2, key_len) || | |
30 | rte_hash_k16_cmp_eq((const char *) key1 + 16, | |
31 | (const char *) key2 + 16, key_len) || | |
32 | rte_hash_k16_cmp_eq((const char *) key1 + 32, | |
33 | (const char *) key2 + 32, key_len); | |
34 | } | |
35 | ||
36 | static int | |
37 | rte_hash_k64_cmp_eq(const void *key1, const void *key2, size_t key_len) | |
38 | { | |
39 | return rte_hash_k32_cmp_eq(key1, key2, key_len) || | |
40 | rte_hash_k32_cmp_eq((const char *) key1 + 32, | |
41 | (const char *) key2 + 32, key_len); | |
42 | } | |
43 | ||
44 | static int | |
45 | rte_hash_k80_cmp_eq(const void *key1, const void *key2, size_t key_len) | |
46 | { | |
47 | return rte_hash_k64_cmp_eq(key1, key2, key_len) || | |
48 | rte_hash_k16_cmp_eq((const char *) key1 + 64, | |
49 | (const char *) key2 + 64, key_len); | |
50 | } | |
51 | ||
52 | static int | |
53 | rte_hash_k96_cmp_eq(const void *key1, const void *key2, size_t key_len) | |
54 | { | |
55 | return rte_hash_k64_cmp_eq(key1, key2, key_len) || | |
56 | rte_hash_k32_cmp_eq((const char *) key1 + 64, | |
57 | (const char *) key2 + 64, key_len); | |
58 | } | |
59 | ||
60 | static int | |
61 | rte_hash_k112_cmp_eq(const void *key1, const void *key2, size_t key_len) | |
62 | { | |
63 | return rte_hash_k64_cmp_eq(key1, key2, key_len) || | |
64 | rte_hash_k32_cmp_eq((const char *) key1 + 64, | |
65 | (const char *) key2 + 64, key_len) || | |
66 | rte_hash_k16_cmp_eq((const char *) key1 + 96, | |
67 | (const char *) key2 + 96, key_len); | |
68 | } | |
69 | ||
70 | static int | |
71 | rte_hash_k128_cmp_eq(const void *key1, const void *key2, size_t key_len) | |
72 | { | |
73 | return rte_hash_k64_cmp_eq(key1, key2, key_len) || | |
74 | rte_hash_k64_cmp_eq((const char *) key1 + 64, | |
75 | (const char *) key2 + 64, key_len); | |
76 | } |