This patch adds a new function which permit to choose the crypto engine
queue length.
Signed-off-by: Corentin Labbe <clabbe.montj...@gmail.com>
---
crypto/crypto_engine.c | 23 ++++++++++++++++++++---
include/crypto/engine.h | 2 ++
2 files changed, 22 insertions(+), 3 deletions(-)
diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c
index c21867106aa4..5bcb1e740fd9 100644
--- a/crypto/crypto_engine.c
+++ b/crypto/crypto_engine.c
@@ -365,15 +365,17 @@ int crypto_engine_stop(struct crypto_engine *engine)
EXPORT_SYMBOL_GPL(crypto_engine_stop);
/**
- * crypto_engine_alloc_init - allocate crypto hardware engine structure and
+ * crypto_engine_alloc_init2 - allocate crypto hardware engine structure and
* initialize it.
* @dev: the device attached with one hardware engine
* @rt: whether this queue is set to run as a realtime task
+ * @qlen: The size of the crypto queue
*
* This must be called from context that can sleep.
* Return: the crypto engine structure on success, else NULL.
*/
-struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt)
+struct crypto_engine *crypto_engine_alloc_init2(struct device *dev, bool rt,
+ int qlen)
{
struct sched_param param = { .sched_priority = MAX_RT_PRIO / 2 };
struct crypto_engine *engine;
@@ -393,7 +395,7 @@ struct crypto_engine *crypto_engine_alloc_init(struct
device *dev, bool rt)
snprintf(engine->name, sizeof(engine->name),
"%s-engine", dev_name(dev));
- crypto_init_queue(&engine->queue, CRYPTO_ENGINE_MAX_QLEN);
+ crypto_init_queue(&engine->queue, qlen);
spin_lock_init(&engine->queue_lock);
engine->kworker = kthread_create_worker(0, "%s", engine->name);
@@ -410,6 +412,21 @@ struct crypto_engine *crypto_engine_alloc_init(struct
device *dev, bool rt)
return engine;
}
+EXPORT_SYMBOL_GPL(crypto_engine_alloc_init2);
+
+/**
+ * crypto_engine_alloc_init - allocate crypto hardware engine structure and
+ * initialize it.
+ * @dev: the device attached with one hardware engine
+ * @rt: whether this queue is set to run as a realtime task
+ *
+ * This must be called from context that can sleep.
+ * Return: the crypto engine structure on success, else NULL.
+ */
+struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt)
+{
+ return crypto_engine_alloc_init2(dev, rt, CRYPTO_ENGINE_MAX_QLEN);
+}
EXPORT_SYMBOL_GPL(crypto_engine_alloc_init);
/**
diff --git a/include/crypto/engine.h b/include/crypto/engine.h
index d77080227beb..03d9f9ec1cea 100644
--- a/include/crypto/engine.h
+++ b/include/crypto/engine.h
@@ -96,6 +96,8 @@ void crypto_finalize_skcipher_request(struct crypto_engine
*engine,
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);
+struct crypto_engine *crypto_engine_alloc_init2(struct device *dev, bool rt,
+ int qlen);
int crypto_engine_exit(struct crypto_engine *engine);
#endif /* _CRYPTO_ENGINE_H */
--
2.24.1
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