drivers/crypto/qce/common.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
   4  */
   5
   6 #ifndef _COMMON_H_
   7 #define _COMMON_H_
   8
   9 #include <linux/crypto.h>
  10 #include <linux/types.h>
  11 #include <crypto/aes.h>
  12 #include <crypto/hash.h>
  13 #include <crypto/internal/skcipher.h>
  14
  15 /* xts du size */
  16 #define QCE_SECTOR_SIZE                 512
  17
  18 /* key size in bytes */
  19 #define QCE_SHA_HMAC_KEY_SIZE           64
  20 #define QCE_MAX_CIPHER_KEY_SIZE         AES_KEYSIZE_256
  21
  22 /* IV length in bytes */
  23 #define QCE_AES_IV_LENGTH               AES_BLOCK_SIZE
  24 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
  25 #define QCE_MAX_IV_SIZE                 AES_BLOCK_SIZE
  26
  27 /* maximum nonce bytes  */
  28 #define QCE_MAX_NONCE                   16
  29 #define QCE_MAX_NONCE_WORDS             (QCE_MAX_NONCE / sizeof(u32))
  30
  31 /* burst size alignment requirement */
  32 #define QCE_MAX_ALIGN_SIZE              64
  33
  34 /* cipher algorithms */
  35 #define QCE_ALG_DES                     BIT(0)
  36 #define QCE_ALG_3DES                    BIT(1)
  37 #define QCE_ALG_AES                     BIT(2)
  38
  39 /* hash and hmac algorithms */
  40 #define QCE_HASH_SHA1                   BIT(3)
  41 #define QCE_HASH_SHA256                 BIT(4)
  42 #define QCE_HASH_SHA1_HMAC              BIT(5)
  43 #define QCE_HASH_SHA256_HMAC            BIT(6)
  44 #define QCE_HASH_AES_CMAC               BIT(7)
  45
  46 /* cipher modes */
  47 #define QCE_MODE_CBC                    BIT(8)
  48 #define QCE_MODE_ECB                    BIT(9)
  49 #define QCE_MODE_CTR                    BIT(10)
  50 #define QCE_MODE_XTS                    BIT(11)
  51 #define QCE_MODE_CCM                    BIT(12)
  52 #define QCE_MODE_MASK                   GENMASK(12, 8)
  53
  54 /* cipher encryption/decryption operations */
  55 #define QCE_ENCRYPT                     BIT(13)
  56 #define QCE_DECRYPT                     BIT(14)
  57
  58 #define IS_DES(flags)                   (flags & QCE_ALG_DES)
  59 #define IS_3DES(flags)                  (flags & QCE_ALG_3DES)
  60 #define IS_AES(flags)                   (flags & QCE_ALG_AES)
  61
  62 #define IS_SHA1(flags)                  (flags & QCE_HASH_SHA1)
  63 #define IS_SHA256(flags)                (flags & QCE_HASH_SHA256)
  64 #define IS_SHA1_HMAC(flags)             (flags & QCE_HASH_SHA1_HMAC)
  65 #define IS_SHA256_HMAC(flags)           (flags & QCE_HASH_SHA256_HMAC)
  66 #define IS_CMAC(flags)                  (flags & QCE_HASH_AES_CMAC)
  67 #define IS_SHA(flags)                   (IS_SHA1(flags) || IS_SHA256(flags))
  68 #define IS_SHA_HMAC(flags)              \
  69                 (IS_SHA1_HMAC(flags) || IS_SHA256_HMAC(flags))
  70
  71 #define IS_CBC(mode)                    (mode & QCE_MODE_CBC)
  72 #define IS_ECB(mode)                    (mode & QCE_MODE_ECB)
  73 #define IS_CTR(mode)                    (mode & QCE_MODE_CTR)
  74 #define IS_XTS(mode)                    (mode & QCE_MODE_XTS)
  75 #define IS_CCM(mode)                    (mode & QCE_MODE_CCM)
  76
  77 #define IS_ENCRYPT(dir)                 (dir & QCE_ENCRYPT)
  78 #define IS_DECRYPT(dir)                 (dir & QCE_DECRYPT)
  79
  80 struct qce_alg_template {
  81         struct list_head entry;
  82         u32 crypto_alg_type;
  83         unsigned long alg_flags;
  84         const u32 *std_iv;
  85         union {
  86                 struct skcipher_alg skcipher;
  87                 struct ahash_alg ahash;
  88         } alg;
  89         struct qce_device *qce;
  90 };
  91
  92 void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len);
  93 int qce_check_status(struct qce_device *qce, u32 *status);
  94 void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step);
  95 int qce_start(struct crypto_async_request *async_req, u32 type, u32 totallen,
  96               u32 offset);
  97
  98 #endif /* _COMMON_H_ */