drivers/crypto/nitrox/nitrox_sym_ctx.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #ifndef _NITROX_SYM_CTX_H_
   6 #define _NITROX_SYM_CTX_H_
   7
   8 #include <stdbool.h>
   9
  10 #include <rte_crypto.h>
  11
  12 #define AES_MAX_KEY_SIZE 32
  13 #define AES_BLOCK_SIZE 16
  14
  15 enum nitrox_chain {
  16         NITROX_CHAIN_CIPHER_ONLY,
  17         NITROX_CHAIN_CIPHER_AUTH,
  18         NITROX_CHAIN_AUTH_CIPHER,
  19         NITROX_CHAIN_COMBINED,
  20         NITROX_CHAIN_NOT_SUPPORTED
  21 };
  22
  23 enum nitrox_op {
  24         NITROX_OP_ENCRYPT,
  25         NITROX_OP_DECRYPT,
  26 };
  27
  28 struct crypto_keys {
  29         uint8_t key[AES_MAX_KEY_SIZE];
  30         uint8_t iv[AES_BLOCK_SIZE];
  31 };
  32
  33 struct auth_keys {
  34         uint8_t ipad[64];
  35         uint8_t opad[64];
  36 };
  37
  38 struct flexi_crypto_context {
  39         union {
  40                 uint64_t flags;
  41                 struct {
  42 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
  43                         uint64_t cipher_type : 4;
  44                         uint64_t reserved_59 : 1;
  45                         uint64_t aes_keylen : 2;
  46                         uint64_t iv_source : 1;
  47                         uint64_t hash_type : 4;
  48                         uint64_t reserved_49_51 : 3;
  49                         uint64_t auth_input_type : 1;
  50                         uint64_t mac_len : 8;
  51                         uint64_t reserved_0_39 : 40;
  52 #else
  53                         uint64_t reserved_0_39 : 40;
  54                         uint64_t mac_len : 8;
  55                         uint64_t auth_input_type : 1;
  56                         uint64_t reserved_49_51 : 3;
  57                         uint64_t hash_type : 4;
  58                         uint64_t iv_source : 1;
  59                         uint64_t aes_keylen : 2;
  60                         uint64_t reserved_59 : 1;
  61                         uint64_t cipher_type : 4;
  62 #endif
  63                 } w0;
  64         };
  65         struct crypto_keys crypto;
  66         struct auth_keys auth;
  67 };
  68
  69 struct nitrox_crypto_ctx {
  70         struct flexi_crypto_context fctx;
  71         enum nitrox_chain nitrox_chain;
  72         enum rte_crypto_auth_operation auth_op;
  73         enum rte_crypto_auth_algorithm auth_algo;
  74         struct {
  75                 uint16_t offset;
  76                 uint16_t length;
  77         } iv;
  78         rte_iova_t iova;
  79         uint16_t digest_length;
  80         uint8_t opcode;
  81         uint8_t req_op;
  82 };
  83
  84 #endif /* _NITROX_SYM_CTX_H_ */