drivers/crypto/aesni_gcm/aesni_gcm_ops.h

   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_ */