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1 | /*- |
2 | * BSD LICENSE | |
3 | * | |
4 | * Copyright(c) 2016 Intel Corporation. All rights reserved. | |
5 | * | |
6 | * Redistribution and use in source and binary forms, with or without | |
7 | * modification, are permitted provided that the following conditions | |
8 | * are met: | |
9 | * | |
10 | * * Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions and the following disclaimer. | |
12 | * * Redistributions in binary form must reproduce the above copyright | |
13 | * notice, this list of conditions and the following disclaimer in | |
14 | * the documentation and/or other materials provided with the | |
15 | * distribution. | |
16 | * * Neither the name of Intel Corporation nor the names of its | |
17 | * contributors may be used to endorse or promote products derived | |
18 | * from this software without specific prior written permission. | |
19 | * | |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
31 | */ | |
32 | ||
33 | #ifndef _AESNI_GCM_OPS_H_ | |
34 | #define _AESNI_GCM_OPS_H_ | |
35 | ||
36 | #ifndef LINUX | |
37 | #define LINUX | |
38 | #endif | |
39 | ||
40 | #include <gcm_defines.h> | |
41 | #include <aux_funcs.h> | |
42 | ||
43 | /** Supported vector modes */ | |
44 | enum aesni_gcm_vector_mode { | |
45 | RTE_AESNI_GCM_NOT_SUPPORTED = 0, | |
46 | RTE_AESNI_GCM_SSE, | |
47 | RTE_AESNI_GCM_AVX, | |
48 | RTE_AESNI_GCM_AVX2 | |
49 | }; | |
50 | ||
51 | typedef void (*aes_keyexp_128_enc_t)(void *key, void *enc_exp_keys); | |
52 | ||
53 | typedef void (*aesni_gcm_t)(gcm_data *my_ctx_data, u8 *out, const u8 *in, | |
54 | u64 plaintext_len, u8 *iv, const u8 *aad, u64 aad_len, | |
55 | u8 *auth_tag, u64 auth_tag_len); | |
56 | ||
57 | typedef void (*aesni_gcm_precomp_t)(gcm_data *my_ctx_data, u8 *hash_subkey); | |
58 | ||
59 | /** GCM library function pointer table */ | |
60 | struct aesni_gcm_ops { | |
61 | struct { | |
62 | struct { | |
63 | aes_keyexp_128_enc_t aes128_enc; | |
64 | /**< AES128 enc key expansion */ | |
65 | } keyexp; | |
66 | /**< Key expansion functions */ | |
67 | } aux; /**< Auxiliary functions */ | |
68 | ||
69 | struct { | |
70 | aesni_gcm_t enc; /**< GCM encode function pointer */ | |
71 | aesni_gcm_t dec; /**< GCM decode function pointer */ | |
72 | aesni_gcm_precomp_t precomp; /**< GCM pre-compute */ | |
73 | } gcm; /**< GCM functions */ | |
74 | }; | |
75 | ||
76 | ||
77 | static const struct aesni_gcm_ops gcm_ops[] = { | |
78 | [RTE_AESNI_GCM_NOT_SUPPORTED] = { | |
79 | .aux = { | |
80 | .keyexp = { | |
81 | NULL | |
82 | } | |
83 | }, | |
84 | .gcm = { | |
85 | NULL | |
86 | } | |
87 | }, | |
88 | [RTE_AESNI_GCM_SSE] = { | |
89 | .aux = { | |
90 | .keyexp = { | |
91 | aes_keyexp_128_enc_sse | |
92 | } | |
93 | }, | |
94 | .gcm = { | |
95 | aesni_gcm_enc_sse, | |
96 | aesni_gcm_dec_sse, | |
97 | aesni_gcm_precomp_sse | |
98 | } | |
99 | }, | |
100 | [RTE_AESNI_GCM_AVX] = { | |
101 | .aux = { | |
102 | .keyexp = { | |
103 | aes_keyexp_128_enc_avx, | |
104 | } | |
105 | }, | |
106 | .gcm = { | |
107 | aesni_gcm_enc_avx_gen2, | |
108 | aesni_gcm_dec_avx_gen2, | |
109 | aesni_gcm_precomp_avx_gen2 | |
110 | } | |
111 | }, | |
112 | [RTE_AESNI_GCM_AVX2] = { | |
113 | .aux = { | |
114 | .keyexp = { | |
115 | aes_keyexp_128_enc_avx2, | |
116 | } | |
117 | }, | |
118 | .gcm = { | |
119 | aesni_gcm_enc_avx_gen4, | |
120 | aesni_gcm_dec_avx_gen4, | |
121 | aesni_gcm_precomp_avx_gen4 | |
122 | } | |
123 | } | |
124 | }; | |
125 | ||
126 | ||
127 | #endif /* _AESNI_GCM_OPS_H_ */ |