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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/include/crypto/engine.h
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@@ -1,13 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
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 /*
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  * Crypto engine API
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  *
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  * Copyright (c) 2016 Baolin Wang <baolin.wang@linaro.org>
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the Free
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- * Software Foundation; either version 2 of the License, or (at your option)
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- * any later version.
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- *
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  */
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 #ifndef _CRYPTO_ENGINE_H
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 #define _CRYPTO_ENGINE_H
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  * @idling: the engine is entering idle state
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  * @busy: request pump is busy
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  * @running: the engine is on working
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- * @cur_req_prepared: current request is prepared
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+ * @retry_support: indication that the hardware allows re-execution
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+ * of a failed backlog request
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+ * crypto-engine, in head position to keep order
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  * @list: link with the global crypto engine list
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  * @queue_lock: spinlock to syncronise access to request queue
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  * @queue: the crypto queue of the engine
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@@ -40,6 +37,8 @@
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  * @unprepare_crypt_hardware: there are currently no more requests on the
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  * queue so the subsystem notifies the driver that it may relax the
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  * hardware by issuing this call
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+ * @do_batch_requests: execute a batch of requests. Depends on multiple
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+ * requests support.
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  * @kworker: kthread worker struct for request pump
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  * @pump_requests: work struct for scheduling work to the request pump
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  * @priv_data: the engine private data
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@@ -50,7 +49,8 @@
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 	bool			idling;
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 	bool			busy;
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 	bool			running;
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-	bool			cur_req_prepared;
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+
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+	bool			retry_support;
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 	struct list_head	list;
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 	spinlock_t		queue_lock;
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 	int (*prepare_crypt_hardware)(struct crypto_engine *engine);
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 	int (*unprepare_crypt_hardware)(struct crypto_engine *engine);
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+	int (*do_batch_requests)(struct crypto_engine *engine);
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+
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 	struct kthread_worker           *kworker;
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 	struct kthread_work             pump_requests;
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@@ -88,8 +90,6 @@
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 	struct crypto_engine_op op;
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 };
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-int crypto_transfer_ablkcipher_request_to_engine(struct crypto_engine *engine,
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-						 struct ablkcipher_request *req);
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 int crypto_transfer_aead_request_to_engine(struct crypto_engine *engine,
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 					   struct aead_request *req);
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 int crypto_transfer_akcipher_request_to_engine(struct crypto_engine *engine,
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 					       struct ahash_request *req);
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 int crypto_transfer_skcipher_request_to_engine(struct crypto_engine *engine,
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 					       struct skcipher_request *req);
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-void crypto_finalize_ablkcipher_request(struct crypto_engine *engine,
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-					struct ablkcipher_request *req, int err);
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 void crypto_finalize_aead_request(struct crypto_engine *engine,
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 				  struct aead_request *req, int err);
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 void crypto_finalize_akcipher_request(struct crypto_engine *engine,
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@@ -111,6 +109,10 @@
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 int crypto_engine_start(struct crypto_engine *engine);
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 int crypto_engine_stop(struct crypto_engine *engine);
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 struct crypto_engine *crypto_engine_alloc_init(struct device *dev, bool rt);
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+struct crypto_engine *crypto_engine_alloc_init_and_set(struct device *dev,
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+						       bool retry_support,
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+						       int (*cbk_do_batch)(struct crypto_engine *engine),
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+						       bool rt, int qlen);
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 int crypto_engine_exit(struct crypto_engine *engine);
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 #endif /* _CRYPTO_ENGINE_H */