[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_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
	41	/* scsi_devinfo.c */
	42	extern int scsi_get_device_flags(struct scsi_device *sdev,
7f23e146 JB	43	const unsigned char *vendor,
7f23e146 JB	44	const unsigned char *model);
1da177e4 LT	45	extern int __init scsi_init_devinfo(void);
	46	extern void scsi_exit_devinfo(void);
	47
	48	/* scsi_error.c */
242f9dcb	49	extern enum blk_eh_timer_return scsi_times_out(struct request *req);
1da177e4 LT	50	extern int scsi_error_handler(void *host);
	51	extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
	52	extern void scsi_eh_wakeup(struct Scsi_Host *shost);
	53	extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
dca84e46 DW	54	void scsi_eh_ready_devs(struct Scsi_Host *shost,
	55	struct list_head *work_q,
	56	struct list_head *done_q);
	57	int scsi_eh_get_sense(struct list_head *work_q,
	58	struct list_head *done_q);
4a27446f	59	int scsi_noretry_cmd(struct scsi_cmnd *scmd);
1da177e4 LT	60
	61	/* scsi_lib.c */
	62	extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
1da177e4 LT	63	extern void scsi_device_unbusy(struct scsi_device *sdev);
	64	extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
	65	extern void scsi_next_command(struct scsi_cmnd *cmd);
7b3d9545	66	extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
1da177e4 LT	67	extern void scsi_run_host_queues(struct Scsi_Host *shost);
	68	extern struct request_queue scsi_alloc_queue(struct scsi_device sdev);
	69	extern void scsi_free_queue(struct request_queue *q);
	70	extern int scsi_init_queue(void);
	71	extern void scsi_exit_queue(void);
751bf4d7 JB	72	struct request_queue;
	73	struct request;
	74	extern int scsi_prep_fn(struct request_queue , struct request );
7027ad72	75	extern struct kmem_cache *scsi_sdb_cache;
1da177e4 LT	76
	77	/* scsi_proc.c */
	78	#ifdef CONFIG_SCSI_PROC_FS
	79	extern void scsi_proc_hostdir_add(struct scsi_host_template *);
	80	extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
	81	extern void scsi_proc_host_add(struct Scsi_Host *);
	82	extern void scsi_proc_host_rm(struct Scsi_Host *);
	83	extern int scsi_init_procfs(void);
	84	extern void scsi_exit_procfs(void);
	85	#else
	86	# define scsi_proc_hostdir_add(sht) do { } while (0)
	87	# define scsi_proc_hostdir_rm(sht) do { } while (0)
	88	# define scsi_proc_host_add(shost) do { } while (0)
	89	# define scsi_proc_host_rm(shost) do { } while (0)
	90	# define scsi_init_procfs() (0)
	91	# define scsi_exit_procfs() do { } while (0)
	92	#endif /* CONFIG_PROC_FS */
	93
	94	/* scsi_scan.c */
	95	extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
	96	unsigned int, unsigned int, int);
	97	extern void scsi_forget_host(struct Scsi_Host *);
	98	extern void scsi_rescan_device(struct device *);
	99
	100	/* scsi_sysctl.c */
	101	#ifdef CONFIG_SYSCTL
	102	extern int scsi_init_sysctl(void);
	103	extern void scsi_exit_sysctl(void);
	104	#else
	105	# define scsi_init_sysctl() (0)
	106	# define scsi_exit_sysctl() do { } while (0)
	107	#endif /* CONFIG_SYSCTL */
	108
	109	/* scsi_sysfs.c */
1da177e4 LT	110	extern int scsi_sysfs_add_sdev(struct scsi_device *);
	111	extern int scsi_sysfs_add_host(struct Scsi_Host *);
	112	extern int scsi_sysfs_register(void);
	113	extern void scsi_sysfs_unregister(void);
	114	extern void scsi_sysfs_device_initialize(struct scsi_device *);
	115	extern int scsi_sysfs_target_initialize(struct scsi_device *);
	116	extern struct scsi_transport_template blank_transport_template;
903f4fed	117	extern void __scsi_remove_device(struct scsi_device *);
1da177e4	118
1da177e4	119	extern struct bus_type scsi_bus_type;
f7120a4f	120	extern struct attribute_group *scsi_sysfs_shost_attr_groups[];
1da177e4	121
84314fd4 JS	122	/* scsi_netlink.c */
	123	#ifdef CONFIG_SCSI_NETLINK
	124	extern void scsi_netlink_init(void);
	125	extern void scsi_netlink_exit(void);
	126	extern struct sock *scsi_nl_sock;
	127	#else
	128	static inline void scsi_netlink_init(void) {}
	129	static inline void scsi_netlink_exit(void) {}
	130	#endif
	131
1da177e4 LT	132	/*
	133	* internal scsi timeout functions: for use by mid-layer and transport
	134	* classes.
	135	*/
	136
1c9e16e4	137	#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
1da177e4 LT	138	extern int scsi_internal_device_block(struct scsi_device *sdev);
	139	extern int scsi_internal_device_unblock(struct scsi_device *sdev);
	140
	141	#endif /* _SCSI_PRIV_H */