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| author | Harsh Jain <harsh@chelsio.com> | 2017-06-15 12:43:46 +0530 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-06-20 11:21:39 +0800 |
| commit | 738bff48871902bd37c56e6c6b492bb8e37315d5 (patch) | |
| tree | 26a5f228d3954d1c6bc7808688a707f405f096ab /drivers/crypto/chelsio/chcr_crypto.h | |
| parent | 72cb471c13c5df00cc85dcfe5a2849db79570e4e (diff) | |
| download | linux-738bff48871902bd37c56e6c6b492bb8e37315d5.tar.gz | |
crypto: chcr - Ensure Destination sg entry size less than 2k
Allocate new sg list in case received destination sg list has entry greater that 2k. Signed-off-by: Harsh Jain <harsh@chelsio.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/chelsio/chcr_crypto.h')
| -rw-r--r-- | drivers/crypto/chelsio/chcr_crypto.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h index b1b794435503..a4f95b014b46 100644 --- a/drivers/crypto/chelsio/chcr_crypto.h +++ b/drivers/crypto/chelsio/chcr_crypto.h @@ -149,6 +149,7 @@ #define CHCR_HASH_MAX_BLOCK_SIZE_64 64 #define CHCR_HASH_MAX_BLOCK_SIZE_128 128 +#define CHCR_SG_SIZE 2048 /* Aligned to 128 bit boundary */ @@ -164,6 +165,7 @@ 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]; short int dst_nents; @@ -287,6 +289,10 @@ 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); #endif /* __CHCR_CRYPTO_H__ */ |