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Subject: RE: [PATCH] crypto: add virtio-crypto driver


Hi Michael,

	May I should convert all __virtio32/64 to le32/64 in virtio_crypto.h ?


> +#define VIRTIO_CRYPTO_OPCODE(service, op)   (((service) << 8) | (op))
> +
> +struct virtio_crypto_ctrl_header {
> +#define VIRTIO_CRYPTO_CIPHER_CREATE_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x02)
> +#define VIRTIO_CRYPTO_CIPHER_DESTROY_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x03)
> +#define VIRTIO_CRYPTO_HASH_CREATE_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_HASH, 0x02)
> +#define VIRTIO_CRYPTO_HASH_DESTROY_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_HASH, 0x03)
> +#define VIRTIO_CRYPTO_MAC_CREATE_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_MAC, 0x02)
> +#define VIRTIO_CRYPTO_MAC_DESTROY_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_MAC, 0x03)
> +#define VIRTIO_CRYPTO_AEAD_CREATE_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x02)
> +#define VIRTIO_CRYPTO_AEAD_DESTROY_SESSION \
> +	   VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x03)
> +	__virtio32 opcode;
> +	__virtio32 algo;
> +	__virtio32 flag;
> +	/* data virtqueue id */
> +	__virtio32 queue_id;
> +};
> +
> +struct virtio_crypto_cipher_session_para {
> +#define VIRTIO_CRYPTO_NO_CIPHER                 0
> +#define VIRTIO_CRYPTO_CIPHER_ARC4               1
> +#define VIRTIO_CRYPTO_CIPHER_AES_ECB            2
> +#define VIRTIO_CRYPTO_CIPHER_AES_CBC            3
> +#define VIRTIO_CRYPTO_CIPHER_AES_CTR            4
> +#define VIRTIO_CRYPTO_CIPHER_DES_ECB            5
> +#define VIRTIO_CRYPTO_CIPHER_DES_CBC            6
> +#define VIRTIO_CRYPTO_CIPHER_3DES_ECB           7
> +#define VIRTIO_CRYPTO_CIPHER_3DES_CBC           8
> +#define VIRTIO_CRYPTO_CIPHER_3DES_CTR           9
> +#define VIRTIO_CRYPTO_CIPHER_KASUMI_F8          10
> +#define VIRTIO_CRYPTO_CIPHER_SNOW3G_UEA2        11
> +#define VIRTIO_CRYPTO_CIPHER_AES_F8             12
> +#define VIRTIO_CRYPTO_CIPHER_AES_XTS            13
> +#define VIRTIO_CRYPTO_CIPHER_ZUC_EEA3           14
> +	__virtio32 algo;
> +	/* length of key */
> +	__virtio32 keylen;
> +
> +#define VIRTIO_CRYPTO_OP_ENCRYPT  1
> +#define VIRTIO_CRYPTO_OP_DECRYPT  2
> +	/* encrypt or decrypt */
> +	__virtio32 op;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_session_input {
> +	/* Device-writable part */
> +	__virtio64 session_id;
> +	__virtio32 status;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_cipher_session_req {
> +	struct virtio_crypto_cipher_session_para para;
> +};
> +
> +struct virtio_crypto_hash_session_para {
> +#define VIRTIO_CRYPTO_NO_HASH            0
> +#define VIRTIO_CRYPTO_HASH_MD5           1
> +#define VIRTIO_CRYPTO_HASH_SHA1          2
> +#define VIRTIO_CRYPTO_HASH_SHA_224       3
> +#define VIRTIO_CRYPTO_HASH_SHA_256       4
> +#define VIRTIO_CRYPTO_HASH_SHA_384       5
> +#define VIRTIO_CRYPTO_HASH_SHA_512       6
> +#define VIRTIO_CRYPTO_HASH_SHA3_224      7
> +#define VIRTIO_CRYPTO_HASH_SHA3_256      8
> +#define VIRTIO_CRYPTO_HASH_SHA3_384      9
> +#define VIRTIO_CRYPTO_HASH_SHA3_512      10
> +#define VIRTIO_CRYPTO_HASH_SHA3_SHAKE128      11
> +#define VIRTIO_CRYPTO_HASH_SHA3_SHAKE256      12
> +	__virtio32 algo;
> +	/* hash result length */
> +	__virtio32 hash_result_len;
> +};
> +
> +struct virtio_crypto_hash_create_session_req {
> +	struct virtio_crypto_hash_session_para para;
> +};
> +
> +struct virtio_crypto_mac_session_para {
> +#define VIRTIO_CRYPTO_NO_MAC                       0
> +#define VIRTIO_CRYPTO_MAC_HMAC_MD5                 1
> +#define VIRTIO_CRYPTO_MAC_HMAC_SHA1                2
> +#define VIRTIO_CRYPTO_MAC_HMAC_SHA_224             3
> +#define VIRTIO_CRYPTO_MAC_HMAC_SHA_256             4
> +#define VIRTIO_CRYPTO_MAC_HMAC_SHA_384             5
> +#define VIRTIO_CRYPTO_MAC_HMAC_SHA_512             6
> +#define VIRTIO_CRYPTO_MAC_CMAC_3DES                25
> +#define VIRTIO_CRYPTO_MAC_CMAC_AES                 26
> +#define VIRTIO_CRYPTO_MAC_KASUMI_F9                27
> +#define VIRTIO_CRYPTO_MAC_SNOW3G_UIA2              28
> +#define VIRTIO_CRYPTO_MAC_GMAC_AES                 41
> +#define VIRTIO_CRYPTO_MAC_GMAC_TWOFISH             42
> +#define VIRTIO_CRYPTO_MAC_CBCMAC_AES               49
> +#define VIRTIO_CRYPTO_MAC_CBCMAC_KASUMI_F9         50
> +#define VIRTIO_CRYPTO_MAC_XCBC_AES                 53
> +	__virtio32 algo;
> +	/* hash result length */
> +	__virtio32 hash_result_len;
> +	/* length of authenticated key */
> +	__virtio32 auth_key_len;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_mac_create_session_req {
> +	struct virtio_crypto_mac_session_para para;
> +};
> +
> +struct virtio_crypto_aead_session_para {
> +#define VIRTIO_CRYPTO_NO_AEAD     0
> +#define VIRTIO_CRYPTO_AEAD_GCM    1
> +#define VIRTIO_CRYPTO_AEAD_CCM    2
> +#define VIRTIO_CRYPTO_AEAD_CHACHA20_POLY1305  3
> +	__virtio32 algo;
> +	/* length of key */
> +	__virtio32 key_len;
> +	/* hash result length */
> +	__virtio32 hash_result_len;
> +	/* length of the additional authenticated data (AAD) in bytes */
> +	__virtio32 aad_len;
> +	/* encrypt or decrypt, See above VIRTIO_CRYPTO_OP_* */
> +	__virtio32 op;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_aead_create_session_req {
> +	struct virtio_crypto_aead_session_para para;
> +};
> +
> +struct virtio_crypto_alg_chain_session_para {
> +#define VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER  1
> +#define VIRTIO_CRYPTO_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH  2
> +	__virtio32 alg_chain_order;
> +/* Plain hash */
> +#define VIRTIO_CRYPTO_SYM_HASH_MODE_PLAIN    1
> +/* Authenticated hash (mac) */
> +#define VIRTIO_CRYPTO_SYM_HASH_MODE_AUTH     2
> +/* Nested hash */
> +#define VIRTIO_CRYPTO_SYM_HASH_MODE_NESTED   3
> +	__virtio32 hash_mode;
> +	struct virtio_crypto_cipher_session_para cipher_param;
> +	union {
> +		struct virtio_crypto_hash_session_para hash_param;
> +		struct virtio_crypto_mac_session_para mac_param;
> +	} u;
> +	/* length of the additional authenticated data (AAD) in bytes */
> +	__virtio32 aad_len;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_alg_chain_session_req {
> +	struct virtio_crypto_alg_chain_session_para para;
> +};
> +
> +struct virtio_crypto_sym_create_session_req {
> +	union {
> +		struct virtio_crypto_cipher_session_req cipher;
> +		struct virtio_crypto_alg_chain_session_req chain;
> +	} u;
> +
> +	/* Device-readable part */
> +
> +/* No operation */
> +#define VIRTIO_CRYPTO_SYM_OP_NONE  0
> +/* Cipher only operation on the data */
> +#define VIRTIO_CRYPTO_SYM_OP_CIPHER  1
> +/*
> + * Chain any cipher with any hash or mac operation. The order
> + * depends on the value of alg_chain_order param
> + */
> +#define VIRTIO_CRYPTO_SYM_OP_ALGORITHM_CHAINING  2
> +	__virtio32 op_type;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_destroy_session_req {
> +	/* Device-readable part */
> +	__virtio64  session_id;
> +};
> +
> +/* The request of the control viritqueue's packet */
> +struct virtio_crypto_op_ctrl_req {
> +	struct virtio_crypto_ctrl_header header;
> +
> +	union {
> +		struct virtio_crypto_sym_create_session_req
> +			sym_create_session;
> +		struct virtio_crypto_hash_create_session_req
> +			hash_create_session;
> +		struct virtio_crypto_mac_create_session_req
> +			mac_create_session;
> +		struct virtio_crypto_aead_create_session_req
> +			aead_create_session;
> +		struct virtio_crypto_destroy_session_req
> +			destroy_session;
> +	} u;
> +};
> +
> +struct virtio_crypto_op_header {
> +#define VIRTIO_CRYPTO_CIPHER_ENCRYPT \
> +	VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x00)
> +#define VIRTIO_CRYPTO_CIPHER_DECRYPT \
> +	VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_CIPHER, 0x01)
> +#define VIRTIO_CRYPTO_HASH \
> +	VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_HASH, 0x00)
> +#define VIRTIO_CRYPTO_MAC \
> +	VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_MAC, 0x00)
> +#define VIRTIO_CRYPTO_AEAD_ENCRYPT \
> +	VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x00)
> +#define VIRTIO_CRYPTO_AEAD_DECRYPT \
> +	VIRTIO_CRYPTO_OPCODE(VIRTIO_CRYPTO_SERVICE_AEAD, 0x01)
> +	__virtio32 opcode;
> +	/* algo should be service-specific algorithms */
> +	__virtio32 algo;
> +	/* session_id should be service-specific algorithms */
> +	__virtio64 session_id;
> +	/* control flag to control the request */
> +	__virtio32 flag;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_cipher_para {
> +	/*
> +	 * Byte Length of valid IV/Counter
> +	 *
> +	 * For block ciphers in CBC or F8 mode, or for Kasumi in F8 mode, or for
> +	 *   SNOW3G in UEA2 mode, this is the length of the IV (which
> +	 *   must be the same as the block length of the cipher).
> +	 * For block ciphers in CTR mode, this is the length of the counter
> +	 *   (which must be the same as the block length of the cipher).
> +	 * For AES-XTS, this is the 128bit tweak, i, from IEEE Std 1619-2007.
> +	 *
> +	 * The IV/Counter will be updated after every partial cryptographic
> +	 * operation.
> +	 */
> +	__virtio32 iv_len;
> +	/* length of source data */
> +	__virtio32 src_data_len;
> +	/* length of dst data */
> +	__virtio32 dst_data_len;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_hash_para {
> +	/* length of source data */
> +	__virtio32 src_data_len;
> +	/* hash result length */
> +	__virtio32 hash_result_len;
> +};
> +
> +struct virtio_crypto_mac_para {
> +	struct virtio_crypto_hash_para hash;
> +};
> +
> +struct virtio_crypto_aead_para {
> +	/*
> +	 * Byte Length of valid IV data pointed to by the below iv_addr
> +	 * parameter.
> +	 *
> +	 * For GCM mode, this is either 12 (for 96-bit IVs) or 16, in which
> +	 *   case iv_addr points to J0.
> +	 * For CCM mode, this is the length of the nonce, which can be in the
> +	 *   range 7 to 13 inclusive.
> +	 */
> +	__virtio32 iv_len;
> +	/* length of additional auth data */
> +	__virtio32 aad_len;
> +	/* length of source data */
> +	__virtio32 src_data_len;
> +	/* length of dst data */
> +	__virtio32 dst_data_len;
> +};
> +
> +struct virtio_crypto_cipher_data_req {
> +	/* Device-readable part */
> +	struct virtio_crypto_cipher_para para;
> +};
> +
> +struct virtio_crypto_hash_data_req {
> +	/* Device-readable part */
> +	struct virtio_crypto_hash_para para;
> +};
> +
> +struct virtio_crypto_mac_data_req {
> +	/* Device-readable part */
> +	struct virtio_crypto_mac_para para;
> +};
> +
> +struct virtio_crypto_alg_chain_data_para {
> +	__virtio32 iv_len;
> +	/* Length of source data */
> +	__virtio32 src_data_len;
> +	/* Length of destination data */
> +	__virtio32 dst_data_len;
> +	/* Starting point for cipher processing in source data */
> +	__virtio32 cipher_start_src_offset;
> +	/* Length of the source data that the cipher will be computed on */
> +	__virtio32 len_to_cipher;
> +	/* Starting point for hash processing in source data */
> +	__virtio32 hash_start_src_offset;
> +	/* Length of the source data that the hash will be computed on */
> +	__virtio32 len_to_hash;
> +	/* Length of the additional auth data */
> +	__virtio32 aad_len;
> +	/* Length of the hash result */
> +	__virtio32 hash_result_len;
> +	__virtio32 reserved;
> +};
> +
> +struct virtio_crypto_alg_chain_data_req {
> +	/* Device-readable part */
> +	struct virtio_crypto_alg_chain_data_para para;
> +};
> +
> +struct virtio_crypto_sym_data_req {
> +	union {
> +		struct virtio_crypto_cipher_data_req cipher;
> +		struct virtio_crypto_alg_chain_data_req chain;
> +	} u;
> +
> +	/* See above VIRTIO_CRYPTO_SYM_OP_* */
> +	__virtio32 op_type;
> +	__virtio32 padding;
> +};
> +
> +struct virtio_crypto_aead_data_req {
> +	/* Device-readable part */
> +	struct virtio_crypto_aead_para para;
> +};
> +
> +/* The request of the data viritqueue's packet */
> +struct virtio_crypto_op_data_req {
> +	struct virtio_crypto_op_header header;
> +
> +	union {
> +		struct virtio_crypto_sym_data_req  sym_req;
> +		struct virtio_crypto_hash_data_req hash_req;
> +		struct virtio_crypto_mac_data_req mac_req;
> +		struct virtio_crypto_aead_data_req aead_req;
> +	} u;
> +};
> +
> +#define VIRTIO_CRYPTO_OK        0
> +#define VIRTIO_CRYPTO_ERR       1
> +#define VIRTIO_CRYPTO_BADMSG    2
> +#define VIRTIO_CRYPTO_NOTSUPP   3
> +#define VIRTIO_CRYPTO_INVSESS   4 /* Invaild session id */
> +
> +/* The accelerator hardware is ready */
> +#define VIRTIO_CRYPTO_S_HW_READY  (1 << 0)
> +#define VIRTIO_CRYPTO_S_STARTED  (1 << 1)
> +
> +struct virtio_crypto_config {
> +	/* See VIRTIO_CRYPTO_OP_* above */
> +	__virtio32  status;
> +
> +	/*
> +	 * Maximum number of data queue legal values are between 1 and
> 0x8000
> +	 */
> +	__virtio32  max_dataqueues;
> +
> +	/*
> +	 * Specifies the services mask which the devcie support,
> +	 * see VIRTIO_CRYPTO_SERVICE_* above
> +	 */
> +	__virtio32 crypto_services;
> +
> +	/* Detailed algorithms mask */
> +	__virtio32 cipher_algo_l;
> +	__virtio32 cipher_algo_h;
> +	__virtio32 hash_algo;
> +	__virtio32 mac_algo_l;
> +	__virtio32 mac_algo_h;
> +	__virtio32 aead_algo;
> +	/* Maximum length of cipher key */
> +	__virtio32 max_cipher_key_len;
> +	/* Maximum length of authenticated key */
> +	__virtio32 max_auth_key_len;
> +	__virtio32 reserve;
> +	/* Maximum size of each crypto request's content */
> +	__virtio64 max_size;
> +};
> +



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