/* SPDX-License-Identifier: GPL-2.0-or-later *//* * Crypto engine API * * Copyright (c) 2016 Baolin Wang <baolin.wang@linaro.org> * Copyright (c) 2023 Herbert Xu <herbert@gondor.apana.org.au> */#ifndef _CRYPTO_INTERNAL_ENGINE_H#define _CRYPTO_INTERNAL_ENGINE_H #include <crypto/algapi.h>#include <crypto/engine.h>#include <linux/kthread.h>#include <linux/spinlock_types.h>#include <linux/types.h> #define ENGINE_NAME_LEN	30 struct device; /* * struct crypto_engine - crypto hardware engine * @name: the engine name * @idling: the engine is entering idle state * @busy: request pump is busy * @running: the engine is on working * @retry_support: indication that the hardware allows re-execution * of a failed backlog request * crypto-engine, in head position to keep order * @rt: whether this queue is set to run as a realtime task * @list: link with the global crypto engine list * @queue_lock: spinlock to synchronise access to request queue * @queue: the crypto queue of the engine * @prepare_crypt_hardware: a request will soon arrive from the queue * so the subsystem requests the driver to prepare the hardware * by issuing this call * @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 * @do_batch_requests: execute a batch of requests. Depends on multiple * requests support. * @kworker: kthread worker struct for request pump * @pump_requests: work struct for scheduling work to the request pump * @priv_data: the engine private data * @cur_req: the current request which is on processing */struct crypto_engine {	char			name[ENGINE_NAME_LEN];	bool			idling;	bool			busy;	bool			running; 	bool			retry_support;	bool			rt; 	struct list_head	list;	spinlock_t		queue_lock;	struct crypto_queue	queue;	struct device		*dev; 	int (*prepare_crypt_hardware)(struct crypto_engine *engine);	int (*unprepare_crypt_hardware)(struct crypto_engine *engine);	int (*do_batch_requests)(struct crypto_engine *engine);  	struct kthread_worker           *kworker;	struct kthread_work             pump_requests; 	void				*priv_data;	struct crypto_async_request	*cur_req;}; #endif