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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2022-11-25 05:36:33 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2022-12-02 11:12:40 +0100 |
| commit | f8e4d1d0ac832de8efc98f302acf9476bbfffb55 (patch) | |
| tree | 02f036d41dce6acfbace07599ccbc583fb9d5aec /include/crypto | |
| parent | crypto: api - Add crypto_tfm_ctx_dma (diff) | |
| download | linux-f8e4d1d0ac832de8efc98f302acf9476bbfffb55.tar.xz linux-f8e4d1d0ac832de8efc98f302acf9476bbfffb55.zip | |
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>
Diffstat (limited to 'include/crypto')
| -rw-r--r-- | include/crypto/internal/aead.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/crypto/internal/aead.h b/include/crypto/internal/aead.h index d482017f3e20..cd8cb1e921b7 100644 --- a/include/crypto/internal/aead.h +++ b/include/crypto/internal/aead.h @@ -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) { |