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
80struct 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	const u8 *hash_zero;
91	const u32 digest_size;
92};
93
94void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len);
95int qce_check_status(struct qce_device *qce, u32 *status);
96void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step);
97int qce_start(struct crypto_async_request *async_req, u32 type, u32 totallen,
98	      u32 offset);
99
100#endif /* _COMMON_H_ */
101