Release 4.10 drivers/mmc/core/queue.h

#ifndef MMC_QUEUE_H

#define MMC_QUEUE_H



static inline bool mmc_req_is_special(struct request *req)
{
	return req &&
		(req_op(req) == REQ_OP_FLUSH ||
		 req_op(req) == REQ_OP_DISCARD ||
		 req_op(req) == REQ_OP_SECURE_ERASE);
}

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struct request;
struct task_struct;
struct mmc_blk_data;


struct mmc_blk_request {
	
struct mmc_request	mrq;
	
struct mmc_command	sbc;
	
struct mmc_command	cmd;
	
struct mmc_command	stop;
	
struct mmc_data		data;
	
int			retune_retry_done;
};


struct mmc_queue_req {
	
struct request		*req;
	
struct mmc_blk_request	brq;
	
struct scatterlist	*sg;
	
char			*bounce_buf;
	
struct scatterlist	*bounce_sg;
	
unsigned int		bounce_sg_len;
	
struct mmc_async_req	mmc_active;
};


struct mmc_queue {
	
struct mmc_card		*card;
	
struct task_struct	*thread;
	
struct semaphore	thread_sem;
	
unsigned int		flags;

#define MMC_QUEUE_SUSPENDED	(1 << 0)

#define MMC_QUEUE_NEW_REQUEST	(1 << 1)
	
bool			asleep;
	
struct mmc_blk_data	*blkdata;
	
struct request_queue	*queue;
	
struct mmc_queue_req	*mqrq;
	
struct mmc_queue_req	*mqrq_cur;
	
struct mmc_queue_req	*mqrq_prev;
	
int			qdepth;
};

extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
			  const char *);
extern void mmc_cleanup_queue(struct mmc_queue *);
extern void mmc_queue_suspend(struct mmc_queue *);
extern void mmc_queue_resume(struct mmc_queue *);

extern unsigned int mmc_queue_map_sg(struct mmc_queue *,
				     struct mmc_queue_req *);
extern void mmc_queue_bounce_pre(struct mmc_queue_req *);
extern void mmc_queue_bounce_post(struct mmc_queue_req *);

extern int mmc_access_rpmb(struct mmc_queue *);

#endif
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Directory: drivers/mmc/core

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