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/* 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
* @list: link with the global crypto engine list
* @queue_lock: spinlock to synchronise access to request queue
* @queue: the crypto queue of the engine
* @rt: whether this queue is set to run as a realtime task
* @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;
struct list_head list;
spinlock_t queue_lock;
struct crypto_queue queue;
struct device *dev;
bool rt;
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
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| acompress.h | File | 1.8 KB | 0644 |
|
| aead.h | File | 4.13 KB | 0644 |
|
| akcipher.h | File | 3.31 KB | 0644 |
|
| blake2b.h | File | 3.06 KB | 0644 |
|
| blake2s.h | File | 3.43 KB | 0644 |
|
| chacha.h | File | 969 B | 0644 |
|
| cipher.h | File | 6.7 KB | 0644 |
|
| cryptouser.h | File | 453 B | 0644 |
|
| des.h | File | 3.25 KB | 0644 |
|
| engine.h | File | 2.19 KB | 0644 |
|
| geniv.h | File | 702 B | 0644 |
|
| hash.h | File | 6.13 KB | 0644 |
|
| kpp.h | File | 6.54 KB | 0644 |
|
| poly1305.h | File | 1.09 KB | 0644 |
|
| rng.h | File | 1021 B | 0644 |
|
| rsa.h | File | 1.6 KB | 0644 |
|
| scompress.h | File | 3.34 KB | 0644 |
|
| simd.h | File | 2.24 KB | 0644 |
|
| skcipher.h | File | 5.29 KB | 0644 |
|