diff options
| -rw-r--r-- | crypto/crypto_engine.c | 1 | ||||
| -rw-r--r-- | drivers/crypto/omap-aes.c | 1 | ||||
| -rw-r--r-- | drivers/crypto/omap-des.c | 1 | ||||
| -rw-r--r-- | include/crypto/algapi.h | 70 | ||||
| -rw-r--r-- | include/crypto/engine.h | 90 |
5 files changed, 93 insertions, 70 deletions
diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c index a55c82dd48ef..795b6f9412ba 100644 --- a/crypto/crypto_engine.c +++ b/crypto/crypto_engine.c @@ -14,6 +14,7 @@ #include <linux/err.h> #include <linux/delay.h> +#include <crypto/engine.h> #include "internal.h" #define CRYPTO_ENGINE_MAX_QLEN 10 diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index 4ab53a604312..993e08ecd16f 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -36,6 +36,7 @@ #include <crypto/scatterwalk.h> #include <crypto/aes.h> #include <crypto/algapi.h> +#include <crypto/engine.h> #define DST_MAXBURST 4 #define DMA_MIN (DST_MAXBURST * sizeof(u32)) diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c index 5691434ffb2d..dc36e1c96eba 100644 --- a/drivers/crypto/omap-des.c +++ b/drivers/crypto/omap-des.c @@ -39,6 +39,7 @@ #include <crypto/scatterwalk.h> #include <crypto/des.h> #include <crypto/algapi.h> +#include <crypto/engine.h> #define DST_MAXBURST 2 diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h index 8637cdfe382a..404e9558e879 100644 --- a/include/crypto/algapi.h +++ b/include/crypto/algapi.h @@ -15,7 +15,6 @@ #include <linux/crypto.h> #include <linux/list.h> #include <linux/kernel.h> -#include <linux/kthread.h> #include <linux/skbuff.h> struct crypto_aead; @@ -129,75 +128,6 @@ struct ablkcipher_walk { unsigned int blocksize; }; -#define ENGINE_NAME_LEN 30 -/* - * 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 - * @cur_req_prepared: current request is prepared - * @list: link with the global crypto engine list - * @queue_lock: spinlock to syncronise 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 - * @prepare_request: do some prepare if need before handle the current request - * @unprepare_request: undo any work done by prepare_message() - * @crypt_one_request: do encryption for current request - * @kworker: thread struct for request pump - * @kworker_task: pointer to task for request pump kworker thread - * @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 cur_req_prepared; - - struct list_head list; - spinlock_t queue_lock; - struct crypto_queue queue; - - bool rt; - - int (*prepare_crypt_hardware)(struct crypto_engine *engine); - int (*unprepare_crypt_hardware)(struct crypto_engine *engine); - - int (*prepare_request)(struct crypto_engine *engine, - struct ablkcipher_request *req); - int (*unprepare_request)(struct crypto_engine *engine, - struct ablkcipher_request *req); - int (*crypt_one_request)(struct crypto_engine *engine, - struct ablkcipher_request *req); - - struct kthread_worker kworker; - struct task_struct *kworker_task; - struct kthread_work pump_requests; - - void *priv_data; - struct ablkcipher_request *cur_req; -}; - -int crypto_transfer_request(struct crypto_engine *engine, - struct ablkcipher_request *req, bool need_pump); -int crypto_transfer_request_to_engine(struct crypto_engine *engine, - struct ablkcipher_request *req); -void crypto_finalize_request(struct crypto_engine *engine, - struct ablkcipher_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); -int crypto_engine_exit(struct crypto_engine *engine); - extern const struct crypto_type crypto_ablkcipher_type; extern const struct crypto_type crypto_blkcipher_type; diff --git a/include/crypto/engine.h b/include/crypto/engine.h new file mode 100644 index 000000000000..40899bd246ec --- /dev/null +++ b/include/crypto/engine.h @@ -0,0 +1,90 @@ +/* + * Crypto engine API + * + * Copyright (c) 2016 Baolin Wang <baolin.wang@linaro.org> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ +#ifndef _CRYPTO_ENGINE_H +#define _CRYPTO_ENGINE_H + +#include <linux/crypto.h> +#include <linux/list.h> +#include <linux/kernel.h> +#include <linux/kthread.h> +#include <crypto/algapi.h> + +#define ENGINE_NAME_LEN 30 +/* + * 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 + * @cur_req_prepared: current request is prepared + * @list: link with the global crypto engine list + * @queue_lock: spinlock to syncronise 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 + * @prepare_request: do some prepare if need before handle the current request + * @unprepare_request: undo any work done by prepare_message() + * @crypt_one_request: do encryption for current request + * @kworker: thread struct for request pump + * @kworker_task: pointer to task for request pump kworker thread + * @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 cur_req_prepared; + + struct list_head list; + spinlock_t queue_lock; + struct crypto_queue queue; + + bool rt; + + int (*prepare_crypt_hardware)(struct crypto_engine *engine); + int (*unprepare_crypt_hardware)(struct crypto_engine *engine); + + int (*prepare_request)(struct crypto_engine *engine, + struct ablkcipher_request *req); + int (*unprepare_request)(struct crypto_engine *engine, + struct ablkcipher_request *req); + int (*crypt_one_request)(struct crypto_engine *engine, + struct ablkcipher_request *req); + + struct kthread_worker kworker; + struct task_struct *kworker_task; + struct kthread_work pump_requests; + + void *priv_data; + struct ablkcipher_request *cur_req; +}; + +int crypto_transfer_request(struct crypto_engine *engine, + struct ablkcipher_request *req, bool need_pump); +int crypto_transfer_request_to_engine(struct crypto_engine *engine, + struct ablkcipher_request *req); +void crypto_finalize_request(struct crypto_engine *engine, + struct ablkcipher_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); +int crypto_engine_exit(struct crypto_engine *engine); + +#endif /* _CRYPTO_ENGINE_H */ |