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Date: Thu, 2 Jun 2016 15:13:32 +0200
From: LABBE Corentin <clabbe.montjoie@...il.com>
To: herbert@...dor.apana.org.au, davem@...emloft.net,
baolin.wang@...aro.org
Cc: linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
LABBE Corentin <clabbe.montjoie@...il.com>
Subject: [PATCH v3 1/1] crypto: engine: permit to enqueue ashash_request
The current crypto engine allow only ablkcipher_request to be enqueued.
Thus denying any use of it for hardware that also handle hash algo.
This patch convert all ablkcipher_request references to the
more general crypto_async_request.
Since the crypto engine is now generalist, this patch rename
crypto_one_request to do_one_request.
Since omap-aes/omap-des are the only users, this patch also convert them to
the new cryptoengine API.
Signed-off-by: LABBE Corentin <clabbe.montjoie@...il.com>
---
crypto/crypto_engine.c | 19 ++++++++-----------
drivers/crypto/omap-aes.c | 18 +++++++++++++-----
drivers/crypto/omap-des.c | 18 +++++++++++++-----
include/crypto/algapi.h | 18 +++++++++---------
4 files changed, 43 insertions(+), 30 deletions(-)
diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c
index a55c82d..e9b31f4 100644
--- a/crypto/crypto_engine.c
+++ b/crypto/crypto_engine.c
@@ -19,7 +19,7 @@
#define CRYPTO_ENGINE_MAX_QLEN 10
void crypto_finalize_request(struct crypto_engine *engine,
- struct ablkcipher_request *req, int err);
+ struct crypto_async_request *req, int err);
/**
* crypto_pump_requests - dequeue one request from engine queue to process
@@ -34,7 +34,6 @@ static void crypto_pump_requests(struct crypto_engine *engine,
bool in_kthread)
{
struct crypto_async_request *async_req, *backlog;
- struct ablkcipher_request *req;
unsigned long flags;
bool was_busy = false;
int ret;
@@ -82,9 +81,7 @@ static void crypto_pump_requests(struct crypto_engine *engine,
if (!async_req)
goto out;
- req = ablkcipher_request_cast(async_req);
-
- engine->cur_req = req;
+ engine->cur_req = async_req;
if (backlog)
backlog->complete(backlog, -EINPROGRESS);
@@ -113,7 +110,7 @@ static void crypto_pump_requests(struct crypto_engine *engine,
engine->cur_req_prepared = true;
}
- ret = engine->crypt_one_request(engine, engine->cur_req);
+ ret = engine->do_one_request(engine, engine->cur_req);
if (ret) {
pr_err("failed to crypt one request from queue\n");
goto req_err;
@@ -142,7 +139,7 @@ static void crypto_pump_work(struct kthread_work *work)
* @req: the request need to be listed into the engine queue
*/
int crypto_transfer_request(struct crypto_engine *engine,
- struct ablkcipher_request *req, bool need_pump)
+ struct crypto_async_request *req, bool need_pump)
{
unsigned long flags;
int ret;
@@ -154,7 +151,7 @@ int crypto_transfer_request(struct crypto_engine *engine,
return -ESHUTDOWN;
}
- ret = ablkcipher_enqueue_request(&engine->queue, req);
+ ret = crypto_enqueue_request(&engine->queue, req);
if (!engine->busy && need_pump)
queue_kthread_work(&engine->kworker, &engine->pump_requests);
@@ -171,7 +168,7 @@ EXPORT_SYMBOL_GPL(crypto_transfer_request);
* @req: the request need to be listed into the engine queue
*/
int crypto_transfer_request_to_engine(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ struct crypto_async_request *req)
{
return crypto_transfer_request(engine, req, true);
}
@@ -184,7 +181,7 @@ EXPORT_SYMBOL_GPL(crypto_transfer_request_to_engine);
* @err: error number
*/
void crypto_finalize_request(struct crypto_engine *engine,
- struct ablkcipher_request *req, int err)
+ struct crypto_async_request *req, int err)
{
unsigned long flags;
bool finalize_cur_req = false;
@@ -208,7 +205,7 @@ void crypto_finalize_request(struct crypto_engine *engine,
spin_unlock_irqrestore(&engine->queue_lock, flags);
}
- req->base.complete(&req->base, err);
+ req->complete(req, err);
queue_kthread_work(&engine->kworker, &engine->pump_requests);
}
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index ce174d3..a8234fc 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -519,7 +519,7 @@ static void omap_aes_finish_req(struct omap_aes_dev *dd, int err)
pr_debug("err: %d\n", err);
- crypto_finalize_request(dd->engine, req, err);
+ crypto_finalize_request(dd->engine, &req->base, err);
}
static int omap_aes_crypt_dma_stop(struct omap_aes_dev *dd)
@@ -592,14 +592,15 @@ static int omap_aes_handle_queue(struct omap_aes_dev *dd,
struct ablkcipher_request *req)
{
if (req)
- return crypto_transfer_request_to_engine(dd->engine, req);
+ return crypto_transfer_request_to_engine(dd->engine, &req->base);
return 0;
}
static int omap_aes_prepare_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ struct crypto_async_request *areq)
{
+ struct ablkcipher_request *req = ablkcipher_request_cast(areq);
struct omap_aes_ctx *ctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));
struct omap_aes_dev *dd = omap_aes_find_dev(ctx);
@@ -609,6 +610,9 @@ static int omap_aes_prepare_req(struct crypto_engine *engine,
if (!dd)
return -ENODEV;
+ if (crypto_tfm_alg_type(areq->tfm) != CRYPTO_ALG_TYPE_ABLKCIPHER)
+ return -EINVAL;
+
/* assign new request to device */
dd->req = req;
dd->total = req->nbytes;
@@ -642,8 +646,9 @@ static int omap_aes_prepare_req(struct crypto_engine *engine,
}
static int omap_aes_crypt_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ struct crypto_async_request *areq)
{
+ struct ablkcipher_request *req = ablkcipher_request_cast(areq);
struct omap_aes_ctx *ctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));
struct omap_aes_dev *dd = omap_aes_find_dev(ctx);
@@ -651,6 +656,9 @@ static int omap_aes_crypt_req(struct crypto_engine *engine,
if (!dd)
return -ENODEV;
+ if (crypto_tfm_alg_type(areq->tfm) != CRYPTO_ALG_TYPE_ABLKCIPHER)
+ return -EINVAL;
+
return omap_aes_crypt_dma_start(dd);
}
@@ -1205,7 +1213,7 @@ static int omap_aes_probe(struct platform_device *pdev)
goto err_algs;
dd->engine->prepare_request = omap_aes_prepare_req;
- dd->engine->crypt_one_request = omap_aes_crypt_req;
+ dd->engine->do_one_request = omap_aes_crypt_req;
err = crypto_engine_start(dd->engine);
if (err)
goto err_engine;
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index 3eedb03..a8026f7 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -506,7 +506,7 @@ static void omap_des_finish_req(struct omap_des_dev *dd, int err)
pr_debug("err: %d\n", err);
pm_runtime_put(dd->dev);
- crypto_finalize_request(dd->engine, req, err);
+ crypto_finalize_request(dd->engine, &req->base, err);
}
static int omap_des_crypt_dma_stop(struct omap_des_dev *dd)
@@ -572,14 +572,15 @@ static int omap_des_handle_queue(struct omap_des_dev *dd,
struct ablkcipher_request *req)
{
if (req)
- return crypto_transfer_request_to_engine(dd->engine, req);
+ return crypto_transfer_request_to_engine(dd->engine, &req->base);
return 0;
}
static int omap_des_prepare_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ struct crypto_async_request *areq)
{
+ struct ablkcipher_request *req = ablkcipher_request_cast(areq);
struct omap_des_ctx *ctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));
struct omap_des_dev *dd = omap_des_find_dev(ctx);
@@ -588,6 +589,9 @@ static int omap_des_prepare_req(struct crypto_engine *engine,
if (!dd)
return -ENODEV;
+ if (crypto_tfm_alg_type(areq->tfm) != CRYPTO_ALG_TYPE_ABLKCIPHER)
+ return -EINVAL;
+
/* assign new request to device */
dd->req = req;
dd->total = req->nbytes;
@@ -620,8 +624,9 @@ static int omap_des_prepare_req(struct crypto_engine *engine,
}
static int omap_des_crypt_req(struct crypto_engine *engine,
- struct ablkcipher_request *req)
+ struct crypto_async_request *areq)
{
+ struct ablkcipher_request *req = ablkcipher_request_cast(areq);
struct omap_des_ctx *ctx = crypto_ablkcipher_ctx(
crypto_ablkcipher_reqtfm(req));
struct omap_des_dev *dd = omap_des_find_dev(ctx);
@@ -629,6 +634,9 @@ static int omap_des_crypt_req(struct crypto_engine *engine,
if (!dd)
return -ENODEV;
+ if (crypto_tfm_alg_type(areq->tfm) != CRYPTO_ALG_TYPE_ABLKCIPHER)
+ return -EINVAL;
+
return omap_des_crypt_dma_start(dd);
}
@@ -1093,7 +1101,7 @@ static int omap_des_probe(struct platform_device *pdev)
goto err_algs;
dd->engine->prepare_request = omap_des_prepare_req;
- dd->engine->crypt_one_request = omap_des_crypt_req;
+ dd->engine->do_one_request = omap_des_crypt_req;
err = crypto_engine_start(dd->engine);
if (err)
goto err_engine;
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index eeafd21..c8de827 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -149,7 +149,7 @@ struct ablkcipher_walk {
* hardware by issuing this call
* @prepare_request: do some prepare if need before handle the current request
* @unprepare_request: undo any work done by prepare_message()
- * @crypt_one_request: do encryption for current request
+ * @do_one_request: do encryption for current request
* @kworker: thread struct for request pump
* @kworker_task: pointer to task for request pump kworker thread
* @pump_requests: work struct for scheduling work to the request pump
@@ -173,26 +173,26 @@ struct crypto_engine {
int (*unprepare_crypt_hardware)(struct crypto_engine *engine);
int (*prepare_request)(struct crypto_engine *engine,
- struct ablkcipher_request *req);
+ struct crypto_async_request *req);
int (*unprepare_request)(struct crypto_engine *engine,
- struct ablkcipher_request *req);
- int (*crypt_one_request)(struct crypto_engine *engine,
- struct ablkcipher_request *req);
+ struct crypto_async_request *req);
+ int (*do_one_request)(struct crypto_engine *engine,
+ struct crypto_async_request *req);
struct kthread_worker kworker;
struct task_struct *kworker_task;
struct kthread_work pump_requests;
void *priv_data;
- struct ablkcipher_request *cur_req;
+ struct crypto_async_request *cur_req;
};
int crypto_transfer_request(struct crypto_engine *engine,
- struct ablkcipher_request *req, bool need_pump);
+ struct crypto_async_request *req, bool need_pump);
int crypto_transfer_request_to_engine(struct crypto_engine *engine,
- struct ablkcipher_request *req);
+ struct crypto_async_request *req);
void crypto_finalize_request(struct crypto_engine *engine,
- struct ablkcipher_request *req, int err);
+ struct crypto_async_request *req, int err);
int crypto_engine_start(struct crypto_engine *engine);
int crypto_engine_stop(struct crypto_engine *engine);
struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt);
--
2.7.3
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