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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017 Cavium, Inc
*/
#ifndef _RTE_ARMV8_PMD_PRIVATE_H_
#define _RTE_ARMV8_PMD_PRIVATE_H_
#define CRYPTODEV_NAME_ARMV8_PMD crypto_armv8
/**< ARMv8 Crypto PMD device name */
#define ARMV8_CRYPTO_LOG_ERR(fmt, args...) \
RTE_LOG(ERR, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
RTE_STR(CRYPTODEV_NAME_ARMV8_CRYPTO_PMD), \
__func__, __LINE__, ## args)
#ifdef RTE_LIBRTE_ARMV8_CRYPTO_DEBUG
#define ARMV8_CRYPTO_LOG_INFO(fmt, args...) \
RTE_LOG(INFO, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
RTE_STR(CRYPTODEV_NAME_ARMV8_CRYPTO_PMD), \
__func__, __LINE__, ## args)
#define ARMV8_CRYPTO_LOG_DBG(fmt, args...) \
RTE_LOG(DEBUG, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
RTE_STR(CRYPTODEV_NAME_ARMV8_CRYPTO_PMD), \
__func__, __LINE__, ## args)
#define ARMV8_CRYPTO_ASSERT(con) \
do { \
if (!(con)) { \
rte_panic("%s(): " \
con "condition failed, line %u", __func__); \
} \
} while (0)
#else
#define ARMV8_CRYPTO_LOG_INFO(fmt, args...)
#define ARMV8_CRYPTO_LOG_DBG(fmt, args...)
#define ARMV8_CRYPTO_ASSERT(con)
#endif
#define NBBY 8 /* Number of bits in a byte */
#define BYTE_LENGTH(x) ((x) / NBBY) /* Number of bytes in x (round down) */
/* Maximum length for digest (SHA-256 needs 32 bytes) */
#define DIGEST_LENGTH_MAX 32
/** ARMv8 operation order mode enumerator */
enum armv8_crypto_chain_order {
ARMV8_CRYPTO_CHAIN_CIPHER_AUTH,
ARMV8_CRYPTO_CHAIN_AUTH_CIPHER,
ARMV8_CRYPTO_CHAIN_NOT_SUPPORTED,
ARMV8_CRYPTO_CHAIN_LIST_END = ARMV8_CRYPTO_CHAIN_NOT_SUPPORTED
};
/** ARMv8 cipher operation enumerator */
enum armv8_crypto_cipher_operation {
ARMV8_CRYPTO_CIPHER_OP_ENCRYPT = RTE_CRYPTO_CIPHER_OP_ENCRYPT,
ARMV8_CRYPTO_CIPHER_OP_DECRYPT = RTE_CRYPTO_CIPHER_OP_DECRYPT,
ARMV8_CRYPTO_CIPHER_OP_NOT_SUPPORTED,
ARMV8_CRYPTO_CIPHER_OP_LIST_END = ARMV8_CRYPTO_CIPHER_OP_NOT_SUPPORTED
};
enum armv8_crypto_cipher_keylen {
ARMV8_CRYPTO_CIPHER_KEYLEN_128,
ARMV8_CRYPTO_CIPHER_KEYLEN_192,
ARMV8_CRYPTO_CIPHER_KEYLEN_256,
ARMV8_CRYPTO_CIPHER_KEYLEN_NOT_SUPPORTED,
ARMV8_CRYPTO_CIPHER_KEYLEN_LIST_END =
ARMV8_CRYPTO_CIPHER_KEYLEN_NOT_SUPPORTED
};
/** ARMv8 auth mode enumerator */
enum armv8_crypto_auth_mode {
ARMV8_CRYPTO_AUTH_AS_AUTH,
ARMV8_CRYPTO_AUTH_AS_HMAC,
ARMV8_CRYPTO_AUTH_AS_CIPHER,
ARMV8_CRYPTO_AUTH_NOT_SUPPORTED,
ARMV8_CRYPTO_AUTH_LIST_END = ARMV8_CRYPTO_AUTH_NOT_SUPPORTED
};
#define CRYPTO_ORDER_MAX ARMV8_CRYPTO_CHAIN_LIST_END
#define CRYPTO_CIPHER_OP_MAX ARMV8_CRYPTO_CIPHER_OP_LIST_END
#define CRYPTO_CIPHER_KEYLEN_MAX ARMV8_CRYPTO_CIPHER_KEYLEN_LIST_END
#define CRYPTO_CIPHER_MAX RTE_CRYPTO_CIPHER_LIST_END
#define CRYPTO_AUTH_MAX RTE_CRYPTO_AUTH_LIST_END
#define HMAC_IPAD_VALUE (0x36)
#define HMAC_OPAD_VALUE (0x5C)
#define SHA256_AUTH_KEY_LENGTH (BYTE_LENGTH(256))
#define SHA256_BLOCK_SIZE (BYTE_LENGTH(512))
#define SHA1_AUTH_KEY_LENGTH (BYTE_LENGTH(160))
#define SHA1_BLOCK_SIZE (BYTE_LENGTH(512))
#define SHA_AUTH_KEY_MAX SHA256_AUTH_KEY_LENGTH
#define SHA_BLOCK_MAX SHA256_BLOCK_SIZE
typedef int (*crypto_func_t)(uint8_t *, uint8_t *, uint64_t,
uint8_t *, uint8_t *, uint64_t,
crypto_arg_t *);
typedef void (*crypto_key_sched_t)(uint8_t *, const uint8_t *);
/** private data structure for each ARMv8 crypto device */
struct armv8_crypto_private {
unsigned int max_nb_qpairs;
/**< Max number of queue pairs */
unsigned int max_nb_sessions;
/**< Max number of sessions */
};
/** ARMv8 crypto queue pair */
struct armv8_crypto_qp {
uint16_t id;
/**< Queue Pair Identifier */
struct rte_ring *processed_ops;
/**< Ring for placing process packets */
struct rte_mempool *sess_mp;
/**< Session Mempool */
struct rte_cryptodev_stats stats;
/**< Queue pair statistics */
char name[RTE_CRYPTODEV_NAME_MAX_LEN];
/**< Unique Queue Pair Name */
uint8_t temp_digest[DIGEST_LENGTH_MAX];
/**< Buffer used to store the digest generated
* by the driver when verifying a digest provided
* by the user (using authentication verify operation)
*/
} __rte_cache_aligned;
/** ARMv8 crypto private session structure */
struct armv8_crypto_session {
enum armv8_crypto_chain_order chain_order;
/**< chain order mode */
crypto_func_t crypto_func;
/**< cryptographic function to use for this session */
/** Cipher Parameters */
struct {
enum rte_crypto_cipher_operation direction;
/**< cipher operation direction */
enum rte_crypto_cipher_algorithm algo;
/**< cipher algorithm */
struct {
uint16_t length;
uint16_t offset;
} iv;
/**< IV parameters */
struct {
uint8_t data[256];
/**< key data */
size_t length;
/**< key length in bytes */
} key;
crypto_key_sched_t key_sched;
/**< Key schedule function */
} cipher;
/** Authentication Parameters */
struct {
enum rte_crypto_auth_operation operation;
/**< auth operation generate or verify */
enum armv8_crypto_auth_mode mode;
/**< auth operation mode */
union {
struct {
/* Add data if needed */
} auth;
struct {
uint8_t i_key_pad[SHA_BLOCK_MAX]
__rte_cache_aligned;
/**< inner pad (max supported block length) */
uint8_t o_key_pad[SHA_BLOCK_MAX]
__rte_cache_aligned;
/**< outer pad (max supported block length) */
uint8_t key[SHA_BLOCK_MAX];
/**< HMAC key (max supported block length)*/
} hmac;
};
uint16_t digest_length;
/* Digest length */
} auth;
} __rte_cache_aligned;
/** Set and validate ARMv8 crypto session parameters */
extern int armv8_crypto_set_session_parameters(
struct armv8_crypto_session *sess,
const struct rte_crypto_sym_xform *xform);
/** device specific operations function pointer structure */
extern struct rte_cryptodev_ops *rte_armv8_crypto_pmd_ops;
#endif /* _RTE_ARMV8_PMD_PRIVATE_H_ */
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