Commit f8e4d1d0 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: aead - Add ctx helpers with DMA alignment 



This patch adds helpers to access the aead context structure and
request context structure with an added alignment for DMA access.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent e634ac4a

include/crypto/internal/aead.h

+22 −0
Original line number Diff line number Diff line
@@ -39,6 +39,11 @@ static inline void *crypto_aead_ctx(struct crypto_aead *tfm) 
	return crypto_tfm_ctx(&tfm->base);

}



static inline void *crypto_aead_ctx_dma(struct crypto_aead *tfm)

{

	return crypto_tfm_ctx_dma(&tfm->base);

}



static inline struct crypto_instance *aead_crypto_instance(

	struct aead_instance *inst)

{
@@ -65,6 +70,16 @@ static inline void *aead_request_ctx(struct aead_request *req) 
	return req->__ctx;

}



static inline void *aead_request_ctx_dma(struct aead_request *req)

{

	unsigned int align = crypto_dma_align();



	if (align <= crypto_tfm_ctx_alignment())

		align = 1;



	return PTR_ALIGN(aead_request_ctx(req), align);

}



static inline void aead_request_complete(struct aead_request *req, int err)

{

	req->base.complete(&req->base, err);
@@ -108,6 +123,13 @@ static inline void crypto_aead_set_reqsize(struct crypto_aead *aead, 
	aead->reqsize = reqsize;

}



static inline void crypto_aead_set_reqsize_dma(struct crypto_aead *aead,

					       unsigned int reqsize)

{

	reqsize += crypto_dma_align() & ~(crypto_tfm_ctx_alignment() - 1);

	aead->reqsize = reqsize;

}



static inline void aead_init_queue(struct aead_queue *queue,

				   unsigned int max_qlen)

{