diff options
Diffstat (limited to 'drivers/crypto/chelsio/chcr_crypto.h')
| -rw-r--r-- | drivers/crypto/chelsio/chcr_crypto.h | 121 |
1 files changed, 86 insertions, 35 deletions
diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h index 30af1ee17b87..94a87e3ad9bc 100644 --- a/drivers/crypto/chelsio/chcr_crypto.h +++ b/drivers/crypto/chelsio/chcr_crypto.h @@ -149,9 +149,23 @@ #define CHCR_HASH_MAX_BLOCK_SIZE_64 64 #define CHCR_HASH_MAX_BLOCK_SIZE_128 128 -#define CHCR_SG_SIZE 2048 +#define CHCR_SRC_SG_SIZE (0x10000 - sizeof(int)) +#define CHCR_DST_SG_SIZE 2048 -/* Aligned to 128 bit boundary */ +static inline struct chcr_context *a_ctx(struct crypto_aead *tfm) +{ + return crypto_aead_ctx(tfm); +} + +static inline struct chcr_context *c_ctx(struct crypto_ablkcipher *tfm) +{ + return crypto_ablkcipher_ctx(tfm); +} + +static inline struct chcr_context *h_ctx(struct crypto_ahash *tfm) +{ + return crypto_tfm_ctx(crypto_ahash_tfm(tfm)); +} struct ablk_ctx { struct crypto_skcipher *sw_cipher; @@ -165,16 +179,39 @@ struct ablk_ctx { }; struct chcr_aead_reqctx { struct sk_buff *skb; - struct scatterlist *dst; - struct scatterlist *newdstsg; - struct scatterlist srcffwd[2]; - struct scatterlist dstffwd[2]; + dma_addr_t iv_dma; + dma_addr_t b0_dma; + unsigned int b0_len; + unsigned int op; + short int aad_nents; + short int src_nents; short int dst_nents; + u16 imm; u16 verify; u8 iv[CHCR_MAX_CRYPTO_IV_LEN]; unsigned char scratch_pad[MAX_SCRATCH_PAD_SIZE]; }; +struct ulptx_walk { + struct ulptx_sgl *sgl; + unsigned int nents; + unsigned int pair_idx; + unsigned int last_sg_len; + struct scatterlist *last_sg; + struct ulptx_sge_pair *pair; + +}; + +struct dsgl_walk { + unsigned int nents; + unsigned int last_sg_len; + struct scatterlist *last_sg; + struct cpl_rx_phys_dsgl *dsgl; + struct phys_sge_pairs *to; +}; + + + struct chcr_gcm_ctx { u8 ghash_h[AEAD_H_SIZE]; }; @@ -195,7 +232,6 @@ struct __aead_ctx { struct chcr_aead_ctx { __be32 key_ctx_hdr; unsigned int enckey_len; - struct crypto_skcipher *null; struct crypto_aead *sw_cipher; u8 salt[MAX_SALT]; u8 key[CHCR_AES_MAX_KEY_LEN]; @@ -231,8 +267,11 @@ struct chcr_ahash_req_ctx { u8 bfr2[CHCR_HASH_MAX_BLOCK_SIZE_128]; u8 *reqbfr; u8 *skbfr; + dma_addr_t dma_addr; + u32 dma_len; u8 reqlen; - /* DMA the partial hash in it */ + u8 imm; + u8 is_sg_map; u8 partial_hash[CHCR_HASH_MAX_DIGEST_SIZE]; u64 data_len; /* Data len till time */ /* SKB which is being sent to the hardware for processing */ @@ -241,14 +280,15 @@ struct chcr_ahash_req_ctx { struct chcr_blkcipher_req_ctx { struct sk_buff *skb; - struct scatterlist srcffwd[2]; - struct scatterlist dstffwd[2]; struct scatterlist *dstsg; - struct scatterlist *dst; - struct scatterlist *newdstsg; unsigned int processed; + unsigned int last_req_len; + struct scatterlist *srcsg; + unsigned int src_ofst; + unsigned int dst_ofst; unsigned int op; - short int dst_nents; + dma_addr_t iv_dma; + u16 imm; u8 iv[CHCR_MAX_CRYPTO_IV_LEN]; }; @@ -262,24 +302,6 @@ struct chcr_alg_template { } 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; -}; - -struct sge_opaque_hdr { - void *dev; - dma_addr_t addr[MAX_SKB_FRAGS + 1]; -}; - typedef struct sk_buff *(*create_wr_t)(struct aead_request *req, unsigned short qid, int size, @@ -290,10 +312,39 @@ static int chcr_aead_op(struct aead_request *req_base, int size, create_wr_t create_wr_fn); static inline int get_aead_subtype(struct crypto_aead *aead); -static int is_newsg(struct scatterlist *sgl, unsigned int *newents); -static struct scatterlist *alloc_new_sg(struct scatterlist *sgl, - unsigned int nents); -static inline void free_new_sg(struct scatterlist *sgl); static int chcr_handle_cipher_resp(struct ablkcipher_request *req, unsigned char *input, int err); +static void chcr_verify_tag(struct aead_request *req, u8 *input, int *err); +static int chcr_aead_dma_map(struct device *dev, struct aead_request *req, + unsigned short op_type); +static void chcr_aead_dma_unmap(struct device *dev, struct aead_request + *req, unsigned short op_type); +static inline void chcr_add_aead_dst_ent(struct aead_request *req, + struct cpl_rx_phys_dsgl *phys_cpl, + unsigned int assoclen, + unsigned short op_type, + unsigned short qid); +static inline void chcr_add_aead_src_ent(struct aead_request *req, + struct ulptx_sgl *ulptx, + unsigned int assoclen, + unsigned short op_type); +static inline void chcr_add_cipher_src_ent(struct ablkcipher_request *req, + struct ulptx_sgl *ulptx, + struct cipher_wr_param *wrparam); +static int chcr_cipher_dma_map(struct device *dev, + struct ablkcipher_request *req); +static void chcr_cipher_dma_unmap(struct device *dev, + struct ablkcipher_request *req); +static inline void chcr_add_cipher_dst_ent(struct ablkcipher_request *req, + struct cpl_rx_phys_dsgl *phys_cpl, + struct cipher_wr_param *wrparam, + unsigned short qid); +int sg_nents_len_skip(struct scatterlist *sg, u64 len, u64 skip); +static inline void chcr_add_hash_src_ent(struct ahash_request *req, + struct ulptx_sgl *ulptx, + struct hash_wr_param *param); +static inline int chcr_hash_dma_map(struct device *dev, + struct ahash_request *req); +static inline void chcr_hash_dma_unmap(struct device *dev, + struct ahash_request *req); #endif /* __CHCR_CRYPTO_H__ */ |