include/scsi/scsi_dh.h

Source file repositories/reference/linux-study-clean/include/scsi/scsi_dh.h

File Facts

System
Linux kernel
Corpus path
include/scsi/scsi_dh.h
Extension
.h
Size
2601 bytes
Lines
91
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct scsi_device_handler {
	/* Used by the infrastructure */
	struct list_head list; /* list of scsi_device_handlers */

	/* Filled by the hardware handler */
	struct module *module;
	const char *name;
	enum scsi_disposition (*check_sense)(struct scsi_device *,
					     struct scsi_sense_hdr *);
	int (*attach)(struct scsi_device *);
	void (*detach)(struct scsi_device *);
	int (*activate)(struct scsi_device *, activate_complete, void *);
	blk_status_t (*prep_fn)(struct scsi_device *, struct request *);
	int (*set_params)(struct scsi_device *, const char *);
	void (*rescan)(struct scsi_device *);
};

#ifdef CONFIG_SCSI_DH
extern int scsi_dh_activate(struct request_queue *, activate_complete, void *);
extern int scsi_dh_attach(struct request_queue *, const char *);
extern const char *scsi_dh_attached_handler_name(struct request_queue *, gfp_t);
extern int scsi_dh_set_params(struct request_queue *, const char *);
#else
static inline int scsi_dh_activate(struct request_queue *req,
					activate_complete fn, void *data)
{
	fn(data, 0);
	return 0;
}
static inline int scsi_dh_attach(struct request_queue *req, const char *name)
{
	return SCSI_DH_NOSYS;
}
static inline const char *scsi_dh_attached_handler_name(struct request_queue *q,
							gfp_t gfp)
{
	return NULL;
}
static inline int scsi_dh_set_params(struct request_queue *req, const char *params)
{
	return -SCSI_DH_NOSYS;
}
#endif

Annotation

Implementation Notes