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#include <crypto/internal/aead.h>
15
16/* xts du size */
17#define QCE_SECTOR_SIZE			512
18
19/* key size in bytes */
20#define QCE_SHA_HMAC_KEY_SIZE		64
21#define QCE_MAX_CIPHER_KEY_SIZE		AES_KEYSIZE_256
22
23/* IV length in bytes */
24#define QCE_AES_IV_LENGTH		AES_BLOCK_SIZE
25/* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
26#define QCE_MAX_IV_SIZE			AES_BLOCK_SIZE
27
28/* maximum nonce bytes  */
29#define QCE_MAX_NONCE			16
30#define QCE_MAX_NONCE_WORDS		(QCE_MAX_NONCE / sizeof(u32))
31
32/* burst size alignment requirement */
33#define QCE_MAX_ALIGN_SIZE		64
34
35/* cipher algorithms */
36#define QCE_ALG_DES			BIT(0)
37#define QCE_ALG_3DES			BIT(1)
38#define QCE_ALG_AES			BIT(2)
39
40/* hash and hmac algorithms */
41#define QCE_HASH_SHA1			BIT(3)
42#define QCE_HASH_SHA256			BIT(4)
43#define QCE_HASH_SHA1_HMAC		BIT(5)
44#define QCE_HASH_SHA256_HMAC		BIT(6)
45#define QCE_HASH_AES_CMAC		BIT(7)
46
47/* cipher modes */
48#define QCE_MODE_CBC			BIT(8)
49#define QCE_MODE_ECB			BIT(9)
50#define QCE_MODE_CTR			BIT(10)
51#define QCE_MODE_XTS			BIT(11)
52#define QCE_MODE_CCM			BIT(12)
53#define QCE_MODE_MASK			GENMASK(12, 8)
54
55#define QCE_MODE_CCM_RFC4309		BIT(13)
56
57/* cipher encryption/decryption operations */
58#define QCE_ENCRYPT			BIT(30)
59#define QCE_DECRYPT			BIT(31)
60
61#define IS_DES(flags)			(flags & QCE_ALG_DES)
62#define IS_3DES(flags)			(flags & QCE_ALG_3DES)
63#define IS_AES(flags)			(flags & QCE_ALG_AES)
64
65#define IS_SHA1(flags)			(flags & QCE_HASH_SHA1)
66#define IS_SHA256(flags)		(flags & QCE_HASH_SHA256)
67#define IS_SHA1_HMAC(flags)		(flags & QCE_HASH_SHA1_HMAC)
68#define IS_SHA256_HMAC(flags)		(flags & QCE_HASH_SHA256_HMAC)
69#define IS_CMAC(flags)			(flags & QCE_HASH_AES_CMAC)
70#define IS_SHA(flags)			(IS_SHA1(flags) || IS_SHA256(flags))
71#define IS_SHA_HMAC(flags)		\
72		(IS_SHA1_HMAC(flags) || IS_SHA256_HMAC(flags))
73
74#define IS_CBC(mode)			(mode & QCE_MODE_CBC)
75#define IS_ECB(mode)			(mode & QCE_MODE_ECB)
76#define IS_CTR(mode)			(mode & QCE_MODE_CTR)
77#define IS_XTS(mode)			(mode & QCE_MODE_XTS)
78#define IS_CCM(mode)			(mode & QCE_MODE_CCM)
79#define IS_CCM_RFC4309(mode)		((mode) & QCE_MODE_CCM_RFC4309)
80
81#define IS_ENCRYPT(dir)			(dir & QCE_ENCRYPT)
82#define IS_DECRYPT(dir)			(dir & QCE_DECRYPT)
83
84struct qce_alg_template {
85	struct list_head entry;
86	u32 crypto_alg_type;
87	unsigned long alg_flags;
88	const u32 *std_iv;
89	union {
90		struct skcipher_alg skcipher;
91		struct ahash_alg ahash;
92		struct aead_alg aead;
93	} alg;
94	struct qce_device *qce;
95	const u8 *hash_zero;
96	const u32 digest_size;
97};
98
99void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len);
100int qce_check_status(struct qce_device *qce, u32 *status);
101void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step);
102int qce_start(struct crypto_async_request *async_req, u32 type);
103
104#endif /* _COMMON_H_ */
105