diff options
| author | Ryder Lee <ryder.lee@mediatek.com> | 2017-01-20 08:41:11 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-01-23 17:50:30 +0300 |
| commit | 87421984b4d2e04cfe858849db10ac326d9f3aed (patch) | |
| tree | b8356d4297300ab8d2a554b422b622973ddb53f2 /drivers/crypto/mediatek | |
| parent | 382ae57d5e52a62e77d62e60e5be9a6526d40da0 (diff) | |
| download | linux-87421984b4d2e04cfe858849db10ac326d9f3aed.tar.xz | |
crypto: mediatek - rework crypto request completion
This patch introduces a new callback 'resume' in the struct mtk_aes_rec.
This callback is run to resume/complete the processing of the crypto
request when woken up by AES interrupts when DMA completion.
This callback will help implementing the GCM mode support in further
patches.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/mediatek')
| -rw-r--r-- | drivers/crypto/mediatek/mtk-aes.c | 25 | ||||
| -rw-r--r-- | drivers/crypto/mediatek/mtk-platform.h | 3 |
2 files changed, 16 insertions, 12 deletions
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c index 7e5a8e05b5b7..9c4e46891783 100644 --- a/drivers/crypto/mediatek/mtk-aes.c +++ b/drivers/crypto/mediatek/mtk-aes.c @@ -406,6 +406,15 @@ static int mtk_aes_handle_queue(struct mtk_cryp *cryp, u8 id, return ctx->start(cryp, aes); } +static int mtk_aes_complete(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) +{ + aes->flags &= ~AES_FLAGS_BUSY; + aes->areq->complete(aes->areq, 0); + + /* Handle new request */ + return mtk_aes_handle_queue(cryp, aes->id, NULL); +} + static int mtk_aes_start(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) { struct ablkcipher_request *req = ablkcipher_request_cast(aes->areq); @@ -416,6 +425,8 @@ static int mtk_aes_start(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) rctx->mode &= AES_FLAGS_MODE_MSK; aes->flags = (aes->flags & ~AES_FLAGS_MODE_MSK) | rctx->mode; + aes->resume = mtk_aes_complete; + err = mtk_aes_map(cryp, aes, req->src, req->dst, req->nbytes); if (err) return err; @@ -458,16 +469,6 @@ static void mtk_aes_unmap(struct mtk_cryp *cryp, struct mtk_aes_rec *aes) aes->buf, aes->total); } -static inline void mtk_aes_complete(struct mtk_cryp *cryp, - struct mtk_aes_rec *aes) -{ - aes->flags &= ~AES_FLAGS_BUSY; - aes->areq->complete(aes->areq, 0); - - /* Handle new request */ - mtk_aes_handle_queue(cryp, aes->id, NULL); -} - /* Check and set the AES key to transform state buffer */ static int mtk_aes_setkey(struct crypto_ablkcipher *tfm, const u8 *key, u32 keylen) @@ -591,7 +592,7 @@ static void mtk_aes_enc_task(unsigned long data) struct mtk_aes_rec *aes = cryp->aes[0]; mtk_aes_unmap(cryp, aes); - mtk_aes_complete(cryp, aes); + aes->resume(cryp, aes); } static void mtk_aes_dec_task(unsigned long data) @@ -600,7 +601,7 @@ static void mtk_aes_dec_task(unsigned long data) struct mtk_aes_rec *aes = cryp->aes[1]; mtk_aes_unmap(cryp, aes); - mtk_aes_complete(cryp, aes); + aes->resume(cryp, aes); } static irqreturn_t mtk_aes_enc_irq(int irq, void *dev_id) diff --git a/drivers/crypto/mediatek/mtk-platform.h b/drivers/crypto/mediatek/mtk-platform.h index 9f5210c7f1db..36d166bb29fd 100644 --- a/drivers/crypto/mediatek/mtk-platform.h +++ b/drivers/crypto/mediatek/mtk-platform.h @@ -131,6 +131,7 @@ typedef int (*mtk_aes_fn)(struct mtk_cryp *cryp, struct mtk_aes_rec *aes); * @dst: the structure that holds destination sg list info * @aligned_sg: the scatter list is use to alignment * @real_dst: pointer to the destination sg list + * @resume: pointer to resume function * @total: request buffer length * @buf: pointer to page buffer * @id: record identification @@ -150,6 +151,8 @@ struct mtk_aes_rec { struct scatterlist aligned_sg; struct scatterlist *real_dst; + mtk_aes_fn resume; + size_t total; void *buf; |