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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: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2022-11-25 12:36:33 +08:00
parent e634ac4a8a
commit f8e4d1d0ac
1 changed files with 22 additions and 0 deletions
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22
include/crypto/internal/aead.h
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@ -39,6 +39,11 @@ static inline void *crypto_aead_ctx(struct crypto_aead *tfm)
return crypto_tfm_ctx(&tfm->base); 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( static inline struct crypto_instance *aead_crypto_instance(
struct aead_instance *inst) struct aead_instance *inst)
{ {
@ -65,6 +70,16 @@ static inline void *aead_request_ctx(struct aead_request *req)
return req->__ctx; 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) static inline void aead_request_complete(struct aead_request *req, int err)
{ {
req->base.complete(&req->base, 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; 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, static inline void aead_init_queue(struct aead_queue *queue,
unsigned int max_qlen) unsigned int max_qlen)
{ {