[deliverable/linux.git] / drivers / scsi / scsi_priv.h

#ifndef _SCSI_PRIV_H
#define _SCSI_PRIV_H

#include <linux/device.h>

struct request_queue;
struct request;
struct scsi_cmnd;
struct scsi_device;
struct scsi_host_template;
struct Scsi_Host;
struct scsi_nl_hdr;


/*
 * Scsi Error Handler Flags
 */
#define SCSI_EH_CANCEL_CMD	0x0001	/* Cancel this cmd */

#define SCSI_SENSE_VALID(scmd) \
	(((scmd)->sense_buffer[0] & 0x70) == 0x70)

/* hosts.c */
extern int scsi_init_hosts(void);
extern void scsi_exit_hosts(void);

/* scsi.c */
extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
#ifdef CONFIG_SCSI_LOGGING
void scsi_log_send(struct scsi_cmnd *cmd);
void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
#else
static inline void scsi_log_send(struct scsi_cmnd *cmd) 
	{ };
static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
	{ };
#endif

/* scsi_scan.c */
int scsi_complete_async_scans(void);

/* scsi_devinfo.c */
extern int scsi_get_device_flags(struct scsi_device *sdev,
				 const unsigned char *vendor,
				 const unsigned char *model);
extern int __init scsi_init_devinfo(void);
extern void scsi_exit_devinfo(void);

/* scsi_error.c */
extern enum blk_eh_timer_return scsi_times_out(struct request *req);
extern int scsi_error_handler(void *host);
extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
extern void scsi_eh_wakeup(struct Scsi_Host *shost);
extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
void scsi_eh_ready_devs(struct Scsi_Host *shost,
			struct list_head *work_q,
			struct list_head *done_q);
int scsi_eh_get_sense(struct list_head *work_q,
		      struct list_head *done_q);
int scsi_noretry_cmd(struct scsi_cmnd *scmd);

/* scsi_lib.c */
extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
extern void scsi_device_unbusy(struct scsi_device *sdev);
extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
extern void scsi_next_command(struct scsi_cmnd *cmd);
extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
extern void scsi_run_host_queues(struct Scsi_Host *shost);
extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
extern void scsi_free_queue(struct request_queue *q);
extern int scsi_init_queue(void);
extern void scsi_exit_queue(void);
struct request_queue;
struct request;
extern int scsi_prep_fn(struct request_queue *, struct request *);
extern struct kmem_cache *scsi_sdb_cache;

/* scsi_proc.c */
#ifdef CONFIG_SCSI_PROC_FS
extern void scsi_proc_hostdir_add(struct scsi_host_template *);
extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
extern void scsi_proc_host_add(struct Scsi_Host *);
extern void scsi_proc_host_rm(struct Scsi_Host *);
extern int scsi_init_procfs(void);
extern void scsi_exit_procfs(void);
#else
# define scsi_proc_hostdir_add(sht)	do { } while (0)
# define scsi_proc_hostdir_rm(sht)	do { } while (0)
# define scsi_proc_host_add(shost)	do { } while (0)
# define scsi_proc_host_rm(shost)	do { } while (0)
# define scsi_init_procfs()		(0)
# define scsi_exit_procfs()		do { } while (0)
#endif /* CONFIG_PROC_FS */

/* scsi_scan.c */
extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
				   unsigned int, unsigned int, int);
extern void scsi_forget_host(struct Scsi_Host *);
extern void scsi_rescan_device(struct device *);

/* scsi_sysctl.c */
#ifdef CONFIG_SYSCTL
extern int scsi_init_sysctl(void);
extern void scsi_exit_sysctl(void);
#else
# define scsi_init_sysctl()		(0)
# define scsi_exit_sysctl()		do { } while (0)
#endif /* CONFIG_SYSCTL */

/* scsi_sysfs.c */
extern int scsi_sysfs_add_sdev(struct scsi_device *);
extern int scsi_sysfs_add_host(struct Scsi_Host *);
extern int scsi_sysfs_register(void);
extern void scsi_sysfs_unregister(void);
extern void scsi_sysfs_device_initialize(struct scsi_device *);
extern int scsi_sysfs_target_initialize(struct scsi_device *);
extern struct scsi_transport_template blank_transport_template;
extern void __scsi_remove_device(struct scsi_device *);

extern struct bus_type scsi_bus_type;
extern struct attribute_group *scsi_sysfs_shost_attr_groups[];

/* scsi_netlink.c */
#ifdef CONFIG_SCSI_NETLINK
extern void scsi_netlink_init(void);
extern void scsi_netlink_exit(void);
extern struct sock *scsi_nl_sock;
#else
static inline void scsi_netlink_init(void) {}
static inline void scsi_netlink_exit(void) {}
#endif

/* 
 * internal scsi timeout functions: for use by mid-layer and transport
 * classes.
 */

#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT	600	/* units in seconds */
extern int scsi_internal_device_block(struct scsi_device *sdev);
extern int scsi_internal_device_unblock(struct scsi_device *sdev);

#endif /* _SCSI_PRIV_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _SCSI_PRIV_H
	2	#define _SCSI_PRIV_H
	3
1da177e4 LT	4	#include <linux/device.h>
	5
	6	struct request_queue;
242f9dcb	7	struct request;
1da177e4 LT	8	struct scsi_cmnd;
	9	struct scsi_device;
	10	struct scsi_host_template;
1da177e4	11	struct Scsi_Host;
84314fd4	12	struct scsi_nl_hdr;
1da177e4 LT	13
1da177e4 LT	14
1da177e4 LT	15	/*
	16	* Scsi Error Handler Flags
	17	*/
1da177e4	18	#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
1da177e4 LT	19
	20	#define SCSI_SENSE_VALID(scmd) \
	21	(((scmd)->sense_buffer[0] & 0x70) == 0x70)
	22
1da177e4 LT	23	/* hosts.c */
	24	extern int scsi_init_hosts(void);
	25	extern void scsi_exit_hosts(void);
	26
	27	/* scsi.c */
	28	extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
	29	extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
	30	extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
1da177e4 LT	31	#ifdef CONFIG_SCSI_LOGGING
	32	void scsi_log_send(struct scsi_cmnd *cmd);
	33	void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
	34	#else
	35	static inline void scsi_log_send(struct scsi_cmnd *cmd)
	36	{ };
	37	static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
	38	{ };
	39	#endif
	40
3e082a91 MW	41	/* scsi_scan.c */
	42	int scsi_complete_async_scans(void);
	43
1da177e4 LT	44	/* scsi_devinfo.c */
1da177e4 LT	45	extern int scsi_get_device_flags(struct scsi_device *sdev,
7f23e146 JB	46	const unsigned char *vendor,
7f23e146 JB	47	const unsigned char *model);
1da177e4 LT	48	extern int __init scsi_init_devinfo(void);
	49	extern void scsi_exit_devinfo(void);
	50
	51	/* scsi_error.c */
242f9dcb	52	extern enum blk_eh_timer_return scsi_times_out(struct request *req);
1da177e4 LT	53	extern int scsi_error_handler(void *host);
	54	extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
	55	extern void scsi_eh_wakeup(struct Scsi_Host *shost);
	56	extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
dca84e46 DW	57	void scsi_eh_ready_devs(struct Scsi_Host *shost,
	58	struct list_head *work_q,
	59	struct list_head *done_q);
	60	int scsi_eh_get_sense(struct list_head *work_q,
	61	struct list_head *done_q);
4a27446f	62	int scsi_noretry_cmd(struct scsi_cmnd *scmd);
1da177e4 LT	63
	64	/* scsi_lib.c */
	65	extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
1da177e4 LT	66	extern void scsi_device_unbusy(struct scsi_device *sdev);
	67	extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
	68	extern void scsi_next_command(struct scsi_cmnd *cmd);
7b3d9545	69	extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
1da177e4 LT	70	extern void scsi_run_host_queues(struct Scsi_Host *shost);
	71	extern struct request_queue scsi_alloc_queue(struct scsi_device sdev);
	72	extern void scsi_free_queue(struct request_queue *q);
	73	extern int scsi_init_queue(void);
	74	extern void scsi_exit_queue(void);
751bf4d7 JB	75	struct request_queue;
	76	struct request;
	77	extern int scsi_prep_fn(struct request_queue , struct request );
7027ad72	78	extern struct kmem_cache *scsi_sdb_cache;
1da177e4 LT	79
	80	/* scsi_proc.c */
	81	#ifdef CONFIG_SCSI_PROC_FS
	82	extern void scsi_proc_hostdir_add(struct scsi_host_template *);
	83	extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
	84	extern void scsi_proc_host_add(struct Scsi_Host *);
	85	extern void scsi_proc_host_rm(struct Scsi_Host *);
	86	extern int scsi_init_procfs(void);
	87	extern void scsi_exit_procfs(void);
	88	#else
	89	# define scsi_proc_hostdir_add(sht) do { } while (0)
	90	# define scsi_proc_hostdir_rm(sht) do { } while (0)
	91	# define scsi_proc_host_add(shost) do { } while (0)
	92	# define scsi_proc_host_rm(shost) do { } while (0)
	93	# define scsi_init_procfs() (0)
	94	# define scsi_exit_procfs() do { } while (0)
	95	#endif /* CONFIG_PROC_FS */
	96
	97	/* scsi_scan.c */
	98	extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
	99	unsigned int, unsigned int, int);
	100	extern void scsi_forget_host(struct Scsi_Host *);
	101	extern void scsi_rescan_device(struct device *);
	102
	103	/* scsi_sysctl.c */
	104	#ifdef CONFIG_SYSCTL
	105	extern int scsi_init_sysctl(void);
	106	extern void scsi_exit_sysctl(void);
	107	#else
	108	# define scsi_init_sysctl() (0)
	109	# define scsi_exit_sysctl() do { } while (0)
	110	#endif /* CONFIG_SYSCTL */
	111
	112	/* scsi_sysfs.c */
1da177e4 LT	113	extern int scsi_sysfs_add_sdev(struct scsi_device *);
	114	extern int scsi_sysfs_add_host(struct Scsi_Host *);
	115	extern int scsi_sysfs_register(void);
	116	extern void scsi_sysfs_unregister(void);
	117	extern void scsi_sysfs_device_initialize(struct scsi_device *);
	118	extern int scsi_sysfs_target_initialize(struct scsi_device *);
	119	extern struct scsi_transport_template blank_transport_template;
903f4fed	120	extern void __scsi_remove_device(struct scsi_device *);
1da177e4	121
1da177e4	122	extern struct bus_type scsi_bus_type;
f7120a4f	123	extern struct attribute_group *scsi_sysfs_shost_attr_groups[];
1da177e4	124
84314fd4 JS	125	/* scsi_netlink.c */
	126	#ifdef CONFIG_SCSI_NETLINK
	127	extern void scsi_netlink_init(void);
	128	extern void scsi_netlink_exit(void);
	129	extern struct sock *scsi_nl_sock;
	130	#else
	131	static inline void scsi_netlink_init(void) {}
	132	static inline void scsi_netlink_exit(void) {}
	133	#endif
	134
1da177e4 LT	135	/*
	136	* internal scsi timeout functions: for use by mid-layer and transport
	137	* classes.
	138	*/
	139
1c9e16e4	140	#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
1da177e4 LT	141	extern int scsi_internal_device_block(struct scsi_device *sdev);
	142	extern int scsi_internal_device_unblock(struct scsi_device *sdev);
	143
	144	#endif /* _SCSI_PRIV_H */