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crypto: chcr - Add AEAD algos. 

Add support for following AEAD algos.
 GCM,CCM,RFC4106,RFC4309,authenc(hmac(shaXXX),cbc(aes)).

Reviewed-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Harsh Jain <harsh@chelsio.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Harsh Jain 2016-11-29 19:00:43 +05:30 committed by Herbert Xu
parent 5c86a8ff2e
commit 2debd3325e
6 changed files with 1558 additions and 41 deletions
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1
drivers/crypto/chelsio/Kconfig
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@ -4,6 +4,7 @@ config CRYPTO_DEV_CHELSIO
select CRYPTO_SHA1
select CRYPTO_SHA256
select CRYPTO_SHA512
select CRYPTO_AUTHENC
---help---
The Chelsio Crypto Co-processor driver for T6 adapters.

1482
drivers/crypto/chelsio/chcr_algo.c
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File diff suppressed because it is too large Load Diff

16
drivers/crypto/chelsio/chcr_algo.h
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@ -258,13 +258,15 @@ enum {
* where they indicate the size of the integrity check value (ICV)
*/
enum {
AES_CCM_ICV_4 = 4,
AES_CCM_ICV_6 = 6,
AES_CCM_ICV_8 = 8,
AES_CCM_ICV_10 = 10,
AES_CCM_ICV_12 = 12,
AES_CCM_ICV_14 = 14,
AES_CCM_ICV_16 = 16
ICV_4 = 4,
ICV_6 = 6,
ICV_8 = 8,
ICV_10 = 10,
ICV_12 = 12,
ICV_13 = 13,
ICV_14 = 14,
ICV_15 = 15,
ICV_16 = 16
};
struct hash_op_params {

8
drivers/crypto/chelsio/chcr_core.c
View File

@ -109,14 +109,12 @@ static int cpl_fw6_pld_handler(struct chcr_dev *dev,
if (ack_err_status) {
if (CHK_MAC_ERR_BIT(ack_err_status) ||
CHK_PAD_ERR_BIT(ack_err_status))
error_status = -EINVAL;
error_status = -EBADMSG;
}
/* call completion callback with failure status */
if (req) {
if (!chcr_handle_resp(req, input, error_status))
req->complete(req, error_status);
else
return -EINVAL;
error_status = chcr_handle_resp(req, input, error_status);
req->complete(req, error_status);
} else {
pr_err("Incorrect request address from the firmware\n");
return -EFAULT;

2
drivers/crypto/chelsio/chcr_core.h
View File

@ -72,9 +72,7 @@ struct chcr_wr {
};
struct chcr_dev {
/* Request submited to h/w and waiting for response. */
spinlock_t lock_chcr_dev;
struct crypto_queue pending_queue;
struct uld_ctx *u_ctx;
unsigned char tx_channel_id;
};

90
drivers/crypto/chelsio/chcr_crypto.h
View File

@ -36,6 +36,14 @@
#ifndef __CHCR_CRYPTO_H__
#define __CHCR_CRYPTO_H__
#define GHASH_BLOCK_SIZE 16
#define GHASH_DIGEST_SIZE 16
#define CCM_B0_SIZE 16
#define CCM_AAD_FIELD_SIZE 2
#define T5_MAX_AAD_SIZE 512
/* Define following if h/w is not dropping the AAD and IV data before
* giving the processed data
*/
@ -63,22 +71,36 @@
#define CHCR_SCMD_AUTH_CTRL_AUTH_CIPHER 0
#define CHCR_SCMD_AUTH_CTRL_CIPHER_AUTH 1
#define CHCR_SCMD_CIPHER_MODE_NOP 0
#define CHCR_SCMD_CIPHER_MODE_AES_CBC 1
#define CHCR_SCMD_CIPHER_MODE_GENERIC_AES 4
#define CHCR_SCMD_CIPHER_MODE_AES_XTS 6
#define CHCR_SCMD_CIPHER_MODE_NOP 0
#define CHCR_SCMD_CIPHER_MODE_AES_CBC 1
#define CHCR_SCMD_CIPHER_MODE_AES_GCM 2
#define CHCR_SCMD_CIPHER_MODE_AES_CTR 3
#define CHCR_SCMD_CIPHER_MODE_GENERIC_AES 4
#define CHCR_SCMD_CIPHER_MODE_AES_XTS 6
#define CHCR_SCMD_CIPHER_MODE_AES_CCM 7
#define CHCR_SCMD_AUTH_MODE_NOP 0
#define CHCR_SCMD_AUTH_MODE_SHA1 1
#define CHCR_SCMD_AUTH_MODE_SHA224 2
#define CHCR_SCMD_AUTH_MODE_SHA256 3
#define CHCR_SCMD_AUTH_MODE_GHASH 4
#define CHCR_SCMD_AUTH_MODE_SHA512_224 5
#define CHCR_SCMD_AUTH_MODE_SHA512_256 6
#define CHCR_SCMD_AUTH_MODE_SHA512_384 7
#define CHCR_SCMD_AUTH_MODE_SHA512_512 8
#define CHCR_SCMD_AUTH_MODE_CBCMAC 9
#define CHCR_SCMD_AUTH_MODE_CMAC 10
#define CHCR_SCMD_HMAC_CTRL_NOP 0
#define CHCR_SCMD_HMAC_CTRL_NO_TRUNC 1
#define CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366 2
#define CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT 3
#define CHCR_SCMD_HMAC_CTRL_PL1 4
#define CHCR_SCMD_HMAC_CTRL_PL2 5
#define CHCR_SCMD_HMAC_CTRL_PL3 6
#define CHCR_SCMD_HMAC_CTRL_DIV2 7
#define VERIFY_HW 0
#define VERIFY_SW 1
#define CHCR_SCMD_IVGEN_CTRL_HW 0
#define CHCR_SCMD_IVGEN_CTRL_SW 1
@ -106,12 +128,20 @@
#define IV_IMMEDIATE 1
#define IV_DSGL 2
#define AEAD_H_SIZE 16
#define CRYPTO_ALG_SUB_TYPE_MASK 0x0f000000
#define CRYPTO_ALG_SUB_TYPE_HASH_HMAC 0x01000000
#define CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 0x02000000
#define CRYPTO_ALG_SUB_TYPE_AEAD_GCM 0x03000000
#define CRYPTO_ALG_SUB_TYPE_AEAD_AUTHENC 0x04000000
#define CRYPTO_ALG_SUB_TYPE_AEAD_CCM 0x05000000
#define CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309 0x06000000
#define CRYPTO_ALG_SUB_TYPE_AEAD_NULL 0x07000000
#define CRYPTO_ALG_SUB_TYPE_CTR 0x08000000
#define CRYPTO_ALG_TYPE_HMAC (CRYPTO_ALG_TYPE_AHASH |\
CRYPTO_ALG_SUB_TYPE_HASH_HMAC)
#define MAX_SALT 4
#define MAX_SCRATCH_PAD_SIZE 32
#define CHCR_HASH_MAX_BLOCK_SIZE_64 64
@ -126,6 +156,42 @@ struct ablk_ctx {
unsigned char ciph_mode;
u8 rrkey[AES_MAX_KEY_SIZE];
};
struct chcr_aead_reqctx {
struct sk_buff *skb;
short int dst_nents;
u16 verify;
u8 iv[CHCR_MAX_CRYPTO_IV_LEN];
unsigned char scratch_pad[MAX_SCRATCH_PAD_SIZE];
};
struct chcr_gcm_ctx {
u8 ghash_h[AEAD_H_SIZE];
};
struct chcr_authenc_ctx {
u8 dec_rrkey[AES_MAX_KEY_SIZE];
u8 h_iopad[2 * CHCR_HASH_MAX_DIGEST_SIZE];
unsigned char auth_mode;
};
struct __aead_ctx {
struct chcr_gcm_ctx gcm[0];
struct chcr_authenc_ctx authenc[0];
};
struct chcr_aead_ctx {
__be32 key_ctx_hdr;
unsigned int enckey_len;
struct crypto_skcipher *null;
u8 salt[MAX_SALT];
u8 key[CHCR_AES_MAX_KEY_LEN];
u16 hmac_ctrl;
u16 mayverify;
struct __aead_ctx ctx[0];
};
struct hmac_ctx {
@ -137,6 +203,7 @@ struct hmac_ctx {
struct __crypto_ctx {
struct hmac_ctx hmacctx[0];
struct ablk_ctx ablkctx[0];
struct chcr_aead_ctx aeadctx[0];
};
struct chcr_context {
@ -171,16 +238,19 @@ struct chcr_alg_template {
union {
struct crypto_alg crypto;
struct ahash_alg hash;
struct aead_alg aead;
} alg;
};
struct chcr_req_ctx {
union {
struct ahash_request *ahash_req;
struct aead_request *aead_req;
struct ablkcipher_request *ablk_req;
} req;
union {
struct chcr_ahash_req_ctx *ahash_ctx;
struct chcr_aead_reqctx *reqctx;
struct chcr_blkcipher_req_ctx *ablk_ctx;
} ctx;
};
@ -190,9 +260,15 @@ struct sge_opaque_hdr {
dma_addr_t addr[MAX_SKB_FRAGS + 1];
};
typedef struct sk_buff *(*create_wr_t)(struct crypto_async_request *req,
struct chcr_context *ctx,
typedef struct sk_buff *(*create_wr_t)(struct aead_request *req,
unsigned short qid,
int size,
unsigned short op_type);
static int chcr_aead_op(struct aead_request *req_base,
unsigned short op_type,
int size,
create_wr_t create_wr_fn);
static inline int get_aead_subtype(struct crypto_aead *aead);
#endif /* __CHCR_CRYPTO_H__ */