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

#ifndef _SCSI_PRIV_H
#define _SCSI_PRIV_H

#include <linux/device.h>
#include <linux/async.h>
#include <scsi/scsi_device.h>

struct request_queue;
struct request;
struct scsi_cmnd;
struct scsi_device;
struct scsi_target;
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_EH_ABORT_SCHEDULED	0x0002	/* Abort has been scheduled */

#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 */

/* list of keys for the lists */
enum {
	SCSI_DEVINFO_GLOBAL = 0,
	SCSI_DEVINFO_SPI,
};

extern int scsi_get_device_flags(struct scsi_device *sdev,
				 const unsigned char *vendor,
				 const unsigned char *model);
extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
				       const unsigned char *vendor,
				       const unsigned char *model, int key);
extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
					char *model, char *strflags,
					int flags, int key);
extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
extern int scsi_dev_info_add_list(int key, const char *name);
extern int scsi_dev_info_remove_list(int key);

extern int __init scsi_init_devinfo(void);
extern void scsi_exit_devinfo(void);

/* scsi_error.c */
extern void scmd_eh_abort_handler(struct work_struct *work);
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 void 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 int scsi_init_queue(void);
extern void scsi_exit_queue(void);
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 char scsi_scan_type[];
extern int scsi_complete_async_scans(void);
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 const 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

/* scsi_pm.c */
#ifdef CONFIG_PM
extern const struct dev_pm_ops scsi_bus_pm_ops;
#endif
#ifdef CONFIG_PM_RUNTIME
extern void scsi_autopm_get_target(struct scsi_target *);
extern void scsi_autopm_put_target(struct scsi_target *);
extern int scsi_autopm_get_host(struct Scsi_Host *);
extern void scsi_autopm_put_host(struct Scsi_Host *);
#else
static inline void scsi_autopm_get_target(struct scsi_target *t) {}
static inline void scsi_autopm_put_target(struct scsi_target *t) {}
static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
#endif /* CONFIG_PM_RUNTIME */

extern struct async_domain scsi_sd_pm_domain;
extern struct async_domain scsi_sd_probe_domain;

/* 
 * 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,
					enum scsi_device_state new_state);

#endif /* _SCSI_PRIV_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _SCSI_PRIV_H
	2	#define _SCSI_PRIV_H
	3
1da177e4	4	#include <linux/device.h>
2955b47d	5	#include <linux/async.h>
5d9fb5cc	6	#include <scsi/scsi_device.h>
1da177e4 LT	7
1da177e4 LT	8	struct request_queue;
242f9dcb	9	struct request;
1da177e4 LT	10	struct scsi_cmnd;
1da177e4 LT	11	struct scsi_device;
bc4f2401	12	struct scsi_target;
1da177e4	13	struct scsi_host_template;
1da177e4	14	struct Scsi_Host;
84314fd4	15	struct scsi_nl_hdr;
1da177e4 LT	16
1da177e4 LT	17
1da177e4 LT	18	/*
	19	* Scsi Error Handler Flags
	20	*/
1da177e4	21	#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
e494f6a7	22	#define SCSI_EH_ABORT_SCHEDULED 0x0002 /* Abort has been scheduled */
1da177e4 LT	23
	24	#define SCSI_SENSE_VALID(scmd) \
	25	(((scmd)->sense_buffer[0] & 0x70) == 0x70)
	26
1da177e4 LT	27	/* hosts.c */
	28	extern int scsi_init_hosts(void);
	29	extern void scsi_exit_hosts(void);
	30
	31	/* scsi.c */
	32	extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
	33	extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
	34	extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
1da177e4 LT	35	#ifdef CONFIG_SCSI_LOGGING
	36	void scsi_log_send(struct scsi_cmnd *cmd);
	37	void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
	38	#else
	39	static inline void scsi_log_send(struct scsi_cmnd *cmd)
	40	{ };
	41	static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
	42	{ };
	43	#endif
	44
	45	/* scsi_devinfo.c */
598fa4b7 JB	46
	47	/* list of keys for the lists */
	48	enum {
	49	SCSI_DEVINFO_GLOBAL = 0,
a9e0edb6	50	SCSI_DEVINFO_SPI,
598fa4b7 JB	51	};
598fa4b7 JB	52
1da177e4	53	extern int scsi_get_device_flags(struct scsi_device *sdev,
7f23e146 JB	54	const unsigned char *vendor,
7f23e146 JB	55	const unsigned char *model);
598fa4b7 JB	56	extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
	57	const unsigned char *vendor,
	58	const unsigned char *model, int key);
	59	extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
	60	char model, char strflags,
	61	int flags, int key);
38a039be	62	extern int scsi_dev_info_list_del_keyed(char vendor, char model, int key);
598fa4b7 JB	63	extern int scsi_dev_info_add_list(int key, const char *name);
	64	extern int scsi_dev_info_remove_list(int key);
	65
1da177e4 LT	66	extern int __init scsi_init_devinfo(void);
	67	extern void scsi_exit_devinfo(void);
	68
	69	/* scsi_error.c */
e494f6a7	70	extern void scmd_eh_abort_handler(struct work_struct *work);
242f9dcb	71	extern enum blk_eh_timer_return scsi_times_out(struct request *req);
1da177e4 LT	72	extern int scsi_error_handler(void *host);
	73	extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
	74	extern void scsi_eh_wakeup(struct Scsi_Host *shost);
	75	extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
dca84e46 DW	76	void scsi_eh_ready_devs(struct Scsi_Host *shost,
	77	struct list_head *work_q,
	78	struct list_head *done_q);
	79	int scsi_eh_get_sense(struct list_head *work_q,
	80	struct list_head *done_q);
4a27446f	81	int scsi_noretry_cmd(struct scsi_cmnd *scmd);
1da177e4 LT	82
	83	/* scsi_lib.c */
	84	extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
1da177e4	85	extern void scsi_device_unbusy(struct scsi_device *sdev);
84feb166	86	extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
1da177e4	87	extern void scsi_next_command(struct scsi_cmnd *cmd);
7b3d9545	88	extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
1da177e4 LT	89	extern void scsi_run_host_queues(struct Scsi_Host *shost);
1da177e4 LT	90	extern struct request_queue scsi_alloc_queue(struct scsi_device sdev);
1da177e4 LT	91	extern int scsi_init_queue(void);
1da177e4 LT	92	extern void scsi_exit_queue(void);
751bf4d7 JB	93	struct request_queue;
751bf4d7 JB	94	struct request;
7027ad72	95	extern struct kmem_cache *scsi_sdb_cache;
1da177e4 LT	96
	97	/* scsi_proc.c */
	98	#ifdef CONFIG_SCSI_PROC_FS
	99	extern void scsi_proc_hostdir_add(struct scsi_host_template *);
	100	extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
	101	extern void scsi_proc_host_add(struct Scsi_Host *);
	102	extern void scsi_proc_host_rm(struct Scsi_Host *);
	103	extern int scsi_init_procfs(void);
	104	extern void scsi_exit_procfs(void);
	105	#else
	106	# define scsi_proc_hostdir_add(sht) do { } while (0)
	107	# define scsi_proc_hostdir_rm(sht) do { } while (0)
	108	# define scsi_proc_host_add(shost) do { } while (0)
	109	# define scsi_proc_host_rm(shost) do { } while (0)
	110	# define scsi_init_procfs() (0)
	111	# define scsi_exit_procfs() do { } while (0)
	112	#endif /* CONFIG_PROC_FS */
	113
	114	/* scsi_scan.c */
3c31b52f	115	extern char scsi_scan_type[];
fea6d607	116	extern int scsi_complete_async_scans(void);
1da177e4 LT	117	extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
	118	unsigned int, unsigned int, int);
	119	extern void scsi_forget_host(struct Scsi_Host *);
	120	extern void scsi_rescan_device(struct device *);
	121
	122	/* scsi_sysctl.c */
	123	#ifdef CONFIG_SYSCTL
	124	extern int scsi_init_sysctl(void);
	125	extern void scsi_exit_sysctl(void);
	126	#else
	127	# define scsi_init_sysctl() (0)
	128	# define scsi_exit_sysctl() do { } while (0)
	129	#endif /* CONFIG_SYSCTL */
	130
	131	/* scsi_sysfs.c */
1da177e4 LT	132	extern int scsi_sysfs_add_sdev(struct scsi_device *);
	133	extern int scsi_sysfs_add_host(struct Scsi_Host *);
	134	extern int scsi_sysfs_register(void);
	135	extern void scsi_sysfs_unregister(void);
	136	extern void scsi_sysfs_device_initialize(struct scsi_device *);
	137	extern int scsi_sysfs_target_initialize(struct scsi_device *);
	138	extern struct scsi_transport_template blank_transport_template;
903f4fed	139	extern void __scsi_remove_device(struct scsi_device *);
1da177e4	140
1da177e4	141	extern struct bus_type scsi_bus_type;
a4dbd674	142	extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
1da177e4	143
84314fd4 JS	144	/* scsi_netlink.c */
	145	#ifdef CONFIG_SCSI_NETLINK
	146	extern void scsi_netlink_init(void);
	147	extern void scsi_netlink_exit(void);
	148	extern struct sock *scsi_nl_sock;
	149	#else
	150	static inline void scsi_netlink_init(void) {}
	151	static inline void scsi_netlink_exit(void) {}
	152	#endif
	153
db5bd1e0	154	/* scsi_pm.c */
aa338601	155	#ifdef CONFIG_PM
db5bd1e0	156	extern const struct dev_pm_ops scsi_bus_pm_ops;
db5bd1e0	157	#endif
bc4f2401 AS	158	#ifdef CONFIG_PM_RUNTIME
	159	extern void scsi_autopm_get_target(struct scsi_target *);
	160	extern void scsi_autopm_put_target(struct scsi_target *);
	161	extern int scsi_autopm_get_host(struct Scsi_Host *);
	162	extern void scsi_autopm_put_host(struct Scsi_Host *);
	163	#else
	164	static inline void scsi_autopm_get_target(struct scsi_target *t) {}
	165	static inline void scsi_autopm_put_target(struct scsi_target *t) {}
	166	static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
	167	static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
	168	#endif /* CONFIG_PM_RUNTIME */
db5bd1e0	169
3c31b52f	170	extern struct async_domain scsi_sd_pm_domain;
2955b47d	171	extern struct async_domain scsi_sd_probe_domain;
a7a20d10	172
1da177e4 LT	173	/*
	174	* internal scsi timeout functions: for use by mid-layer and transport
	175	* classes.
	176	*/
	177
1c9e16e4	178	#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
1da177e4	179	extern int scsi_internal_device_block(struct scsi_device *sdev);
5d9fb5cc MC	180	extern int scsi_internal_device_unblock(struct scsi_device *sdev,
5d9fb5cc MC	181	enum scsi_device_state new_state);
1da177e4 LT	182
1da177e4 LT	183	#endif /* _SCSI_PRIV_H */