/* SPDX-License-Identifier: GPL-2.0 *//* * Software async multibuffer crypto daemon headers * *    Author: *             Tim Chen <tim.c.chen@linux.intel.com> * *    Copyright (c) 2014, Intel Corporation. */ #ifndef _CRYPTO_MCRYPT_H#define _CRYPTO_MCRYPT_H #include <linux/crypto.h>#include <linux/kernel.h>#include <crypto/hash.h> struct mcryptd_ahash {	struct crypto_ahash base;}; static inline struct mcryptd_ahash *__mcryptd_ahash_cast(	struct crypto_ahash *tfm){	return (struct mcryptd_ahash *)tfm;} struct mcryptd_cpu_queue {	struct crypto_queue queue;	spinlock_t q_lock;	struct work_struct work;}; struct mcryptd_queue {	struct mcryptd_cpu_queue __percpu *cpu_queue;}; struct mcryptd_instance_ctx {	struct crypto_spawn spawn;	struct mcryptd_queue *queue;}; struct mcryptd_hash_ctx {	struct crypto_ahash *child;	struct mcryptd_alg_state *alg_state;}; struct mcryptd_tag {	/* seq number of request */	unsigned seq_num;	/* arrival time of request */	unsigned long arrival;	unsigned long expire;	int	cpu;}; struct mcryptd_hash_request_ctx {	struct list_head waiter;	crypto_completion_t complete;	struct mcryptd_tag tag;	struct crypto_hash_walk walk;	u8 *out;	int flag;	struct ahash_request areq;}; struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,					u32 type, u32 mask);struct crypto_ahash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);struct ahash_request *mcryptd_ahash_desc(struct ahash_request *req);void mcryptd_free_ahash(struct mcryptd_ahash *tfm);void mcryptd_flusher(struct work_struct *work); enum mcryptd_req_type {	MCRYPTD_NONE,	MCRYPTD_UPDATE,	MCRYPTD_FINUP,	MCRYPTD_DIGEST,	MCRYPTD_FINAL}; struct mcryptd_alg_cstate {	unsigned long next_flush;	unsigned next_seq_num;	bool	flusher_engaged;	struct  delayed_work flush;	int	cpu;	struct  mcryptd_alg_state *alg_state;	void	*mgr;	spinlock_t work_lock;	struct list_head work_list;	struct list_head flush_list;}; struct mcryptd_alg_state {	struct mcryptd_alg_cstate __percpu *alg_cstate;	unsigned long (*flusher)(struct mcryptd_alg_cstate *cstate);}; /* return delay in jiffies from current time */static inline unsigned long get_delay(unsigned long t){	long delay; 	delay = (long) t - (long) jiffies;	if (delay <= 0)		return 0;	else		return (unsigned long) delay;} void mcryptd_arm_flusher(struct mcryptd_alg_cstate *cstate, unsigned long delay); #endif