drivers/crypto/aesni_gcm/aesni_gcm_ops.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 Intel Corporation
   3  */
   4
   5 #ifndef _AESNI_GCM_OPS_H_
   6 #define _AESNI_GCM_OPS_H_
   7
   8 #ifndef LINUX
   9 #define LINUX
  10 #endif
  11
  12 #include <intel-ipsec-mb.h>
  13
  14 /** Supported vector modes */
  15 enum aesni_gcm_vector_mode {
  16         RTE_AESNI_GCM_NOT_SUPPORTED = 0,
  17         RTE_AESNI_GCM_SSE,
  18         RTE_AESNI_GCM_AVX,
  19         RTE_AESNI_GCM_AVX2,
  20         RTE_AESNI_GCM_VECTOR_NUM
  21 };
  22
  23 enum aesni_gcm_key {
  24         AESNI_GCM_KEY_128,
  25         AESNI_GCM_KEY_192,
  26         AESNI_GCM_KEY_256,
  27         AESNI_GCM_KEY_NUM
  28 };
  29
  30
  31 typedef void (*aesni_gcm_t)(const struct gcm_key_data *gcm_key_data,
  32                 struct gcm_context_data *gcm_ctx_data, uint8_t *out,
  33                 const uint8_t *in, uint64_t plaintext_len, const uint8_t *iv,
  34                 const uint8_t *aad, uint64_t aad_len,
  35                 uint8_t *auth_tag, uint64_t auth_tag_len);
  36
  37 typedef void (*aesni_gcm_precomp_t)(const void *key, struct gcm_key_data *gcm_data);
  38
  39 typedef void (*aesni_gcm_init_t)(const struct gcm_key_data *gcm_key_data,
  40                 struct gcm_context_data *gcm_ctx_data,
  41                 const uint8_t *iv,
  42                 uint8_t const *aad,
  43                 uint64_t aad_len);
  44
  45 typedef void (*aesni_gcm_update_t)(const struct gcm_key_data *gcm_key_data,
  46                 struct gcm_context_data *gcm_ctx_data,
  47                 uint8_t *out,
  48                 const uint8_t *in,
  49                 uint64_t plaintext_len);
  50
  51 typedef void (*aesni_gcm_finalize_t)(const struct gcm_key_data *gcm_key_data,
  52                 struct gcm_context_data *gcm_ctx_data,
  53                 uint8_t *auth_tag,
  54                 uint64_t auth_tag_len);
  55
  56 /** GCM library function pointer table */
  57 struct aesni_gcm_ops {
  58         aesni_gcm_t enc;        /**< GCM encode function pointer */
  59         aesni_gcm_t dec;        /**< GCM decode function pointer */
  60         aesni_gcm_precomp_t precomp;    /**< GCM pre-compute */
  61         aesni_gcm_init_t init;
  62         aesni_gcm_update_t update_enc;
  63         aesni_gcm_update_t update_dec;
  64         aesni_gcm_finalize_t finalize;
  65 };
  66
  67 #define AES_GCM_FN(keylen, arch) \
  68 aes_gcm_enc_##keylen##_##arch,\
  69 aes_gcm_dec_##keylen##_##arch,\
  70 aes_gcm_pre_##keylen##_##arch,\
  71 aes_gcm_init_##keylen##_##arch,\
  72 aes_gcm_enc_##keylen##_update_##arch,\
  73 aes_gcm_dec_##keylen##_update_##arch,\
  74 aes_gcm_enc_##keylen##_finalize_##arch,
  75
  76 static const struct aesni_gcm_ops gcm_ops[RTE_AESNI_GCM_VECTOR_NUM][AESNI_GCM_KEY_NUM] = {
  77         [RTE_AESNI_GCM_NOT_SUPPORTED] = {
  78                 [AESNI_GCM_KEY_128] = {NULL},
  79                 [AESNI_GCM_KEY_192] = {NULL},
  80                 [AESNI_GCM_KEY_256] = {NULL}
  81         },
  82         [RTE_AESNI_GCM_SSE] = {
  83                 [AESNI_GCM_KEY_128] = {
  84                         AES_GCM_FN(128, sse)
  85                 },
  86                 [AESNI_GCM_KEY_192] = {
  87                         AES_GCM_FN(192, sse)
  88                 },
  89                 [AESNI_GCM_KEY_256] = {
  90                         AES_GCM_FN(256, sse)
  91                 }
  92         },
  93         [RTE_AESNI_GCM_AVX] = {
  94                 [AESNI_GCM_KEY_128] = {
  95                         AES_GCM_FN(128, avx_gen2)
  96                 },
  97                 [AESNI_GCM_KEY_192] = {
  98                         AES_GCM_FN(192, avx_gen2)
  99                 },
 100                 [AESNI_GCM_KEY_256] = {
 101                         AES_GCM_FN(256, avx_gen2)
 102                 }
 103         },
 104         [RTE_AESNI_GCM_AVX2] = {
 105                 [AESNI_GCM_KEY_128] = {
 106                         AES_GCM_FN(128, avx_gen4)
 107                 },
 108                 [AESNI_GCM_KEY_192] = {
 109                         AES_GCM_FN(192, avx_gen4)
 110                 },
 111                 [AESNI_GCM_KEY_256] = {
 112                         AES_GCM_FN(256, avx_gen4)
 113                 }
 114         }
 115 };
 116 #endif /* _AESNI_GCM_OPS_H_ */