crypto: engine - Permit to enqueue all async requests

The crypto engine could actually only enqueue hash and ablkcipher request.
This patch permit it to enqueue any type of crypto_async_request.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Tested-by: Fabien Dessenne <fabien.dessenne@st.com>
Tested-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

include/crypto/engine.h

@@ -17,7 +17,10 @@
 #include <linux/kernel.h>
 #include <linux/kthread.h>
 #include <crypto/algapi.h>
+#include <crypto/aead.h>
+#include <crypto/akcipher.h>
 #include <crypto/hash.h>
+#include <crypto/skcipher.h>
 
 #define ENGINE_NAME_LEN	30
 /*
@@ -37,12 +40,6 @@
  * @unprepare_crypt_hardware: there are currently no more requests on the
  * queue so the subsystem notifies the driver that it may relax the
  * hardware by issuing this call
- * @prepare_cipher_request: do some prepare if need before handle the current request
- * @unprepare_cipher_request: undo any work done by prepare_cipher_request()
- * @cipher_one_request: do encryption for current request
- * @prepare_hash_request: do some prepare if need before handle the current request
- * @unprepare_hash_request: undo any work done by prepare_hash_request()
- * @hash_one_request: do hash for current request
  * @kworker: kthread worker struct for request pump
  * @pump_requests: work struct for scheduling work to the request pump
  * @priv_data: the engine private data
@@ -65,19 +62,6 @@ struct crypto_engine {
 	int (*prepare_crypt_hardware)(struct crypto_engine *engine);
 	int (*unprepare_crypt_hardware)(struct crypto_engine *engine);
 
-	int (*prepare_cipher_request)(struct crypto_engine *engine,
-				      struct ablkcipher_request *req);
-	int (*unprepare_cipher_request)(struct crypto_engine *engine,
-					struct ablkcipher_request *req);
-	int (*prepare_hash_request)(struct crypto_engine *engine,
-				    struct ahash_request *req);
-	int (*unprepare_hash_request)(struct crypto_engine *engine,
-				      struct ahash_request *req);
-	int (*cipher_one_request)(struct crypto_engine *engine,
-				  struct ablkcipher_request *req);
-	int (*hash_one_request)(struct crypto_engine *engine,
-				struct ahash_request *req);
-
 	struct kthread_worker           *kworker;
 	struct kthread_work             pump_requests;
 
@@ -85,19 +69,45 @@ struct crypto_engine {
 	struct crypto_async_request	*cur_req;
 };
 
-int crypto_transfer_cipher_request(struct crypto_engine *engine,
-				   struct ablkcipher_request *req,
-				   bool need_pump);
-int crypto_transfer_cipher_request_to_engine(struct crypto_engine *engine,
-					     struct ablkcipher_request *req);
-int crypto_transfer_hash_request(struct crypto_engine *engine,
-				 struct ahash_request *req, bool need_pump);
+/*
+ * struct crypto_engine_op - crypto hardware engine operations
+ * @prepare__request: do some prepare if need before handle the current request
+ * @unprepare_request: undo any work done by prepare_request()
+ * @do_one_request: do encryption for current request
+ */
+struct crypto_engine_op {
+	int (*prepare_request)(struct crypto_engine *engine,
+			       void *areq);
+	int (*unprepare_request)(struct crypto_engine *engine,
+				 void *areq);
+	int (*do_one_request)(struct crypto_engine *engine,
+			      void *areq);
+};
+
+struct crypto_engine_ctx {
+	struct crypto_engine_op op;
+};
+
+int crypto_transfer_ablkcipher_request_to_engine(struct crypto_engine *engine,
+						 struct ablkcipher_request *req);
+int crypto_transfer_aead_request_to_engine(struct crypto_engine *engine,
+					   struct aead_request *req);
+int crypto_transfer_akcipher_request_to_engine(struct crypto_engine *engine,
+					       struct akcipher_request *req);
 int crypto_transfer_hash_request_to_engine(struct crypto_engine *engine,
-					   struct ahash_request *req);
-void crypto_finalize_cipher_request(struct crypto_engine *engine,
-				    struct ablkcipher_request *req, int err);
+					       struct ahash_request *req);
+int crypto_transfer_skcipher_request_to_engine(struct crypto_engine *engine,
+					       struct skcipher_request *req);
+void crypto_finalize_ablkcipher_request(struct crypto_engine *engine,
+					struct ablkcipher_request *req, int err);
+void crypto_finalize_aead_request(struct crypto_engine *engine,
+				  struct aead_request *req, int err);
+void crypto_finalize_akcipher_request(struct crypto_engine *engine,
+				      struct akcipher_request *req, int err);
 void crypto_finalize_hash_request(struct crypto_engine *engine,
 				  struct ahash_request *req, int err);
+void crypto_finalize_skcipher_request(struct crypto_engine *engine,
+				      struct skcipher_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);