[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / scsi_priv.h

#ifndef _SCSI_PRIV_H
#define _SCSI_PRIV_H

#include <linux/device.h>

struct request_queue;
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);
extern void __scsi_done(struct scsi_cmnd *cmd);
extern int scsi_retry_command(struct scsi_cmnd *cmd);
#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 void scsi_add_timer(struct scsi_cmnd *, int,
		void (*)(struct scsi_cmnd *));
extern int scsi_delete_timer(struct scsi_cmnd *);
extern void scsi_times_out(struct scsi_cmnd *cmd);
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);

/* 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_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);

/* 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;

/* 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;
	7	struct scsi_cmnd;
	8	struct scsi_device;
	9	struct scsi_host_template;
1da177e4	10	struct Scsi_Host;
84314fd4	11	struct scsi_nl_hdr;
1da177e4 LT	12
1da177e4 LT	13
1da177e4 LT	14	/*
	15	* Scsi Error Handler Flags
	16	*/
1da177e4	17	#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
1da177e4 LT	18
	19	#define SCSI_SENSE_VALID(scmd) \
	20	(((scmd)->sense_buffer[0] & 0x70) == 0x70)
	21
1da177e4 LT	22	/* hosts.c */
	23	extern int scsi_init_hosts(void);
	24	extern void scsi_exit_hosts(void);
	25
	26	/* scsi.c */
	27	extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
	28	extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
	29	extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
1da177e4	30	extern void __scsi_done(struct scsi_cmnd *cmd);
1aea6434	31	extern int scsi_retry_command(struct scsi_cmnd *cmd);
1da177e4 LT	32	#ifdef CONFIG_SCSI_LOGGING
	33	void scsi_log_send(struct scsi_cmnd *cmd);
	34	void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
	35	#else
	36	static inline void scsi_log_send(struct scsi_cmnd *cmd)
	37	{ };
	38	static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
	39	{ };
	40	#endif
	41
	42	/* scsi_devinfo.c */
	43	extern int scsi_get_device_flags(struct scsi_device *sdev,
7f23e146 JB	44	const unsigned char *vendor,
7f23e146 JB	45	const unsigned char *model);
1da177e4 LT	46	extern int __init scsi_init_devinfo(void);
	47	extern void scsi_exit_devinfo(void);
	48
	49	/* scsi_error.c */
fe1b2d54 CH	50	extern void scsi_add_timer(struct scsi_cmnd *, int,
	51	void ()(struct scsi_cmnd ));
	52	extern int scsi_delete_timer(struct scsi_cmnd *);
1da177e4 LT	53	extern void scsi_times_out(struct scsi_cmnd *cmd);
	54	extern int scsi_error_handler(void *host);
	55	extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
	56	extern void scsi_eh_wakeup(struct Scsi_Host *shost);
	57	extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
	58
	59	/* scsi_lib.c */
	60	extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
1da177e4 LT	61	extern void scsi_device_unbusy(struct scsi_device *sdev);
	62	extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
	63	extern void scsi_next_command(struct scsi_cmnd *cmd);
	64	extern void scsi_run_host_queues(struct Scsi_Host *shost);
	65	extern struct request_queue scsi_alloc_queue(struct scsi_device sdev);
	66	extern void scsi_free_queue(struct request_queue *q);
	67	extern int scsi_init_queue(void);
	68	extern void scsi_exit_queue(void);
	69
	70	/* scsi_proc.c */
	71	#ifdef CONFIG_SCSI_PROC_FS
	72	extern void scsi_proc_hostdir_add(struct scsi_host_template *);
	73	extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
	74	extern void scsi_proc_host_add(struct Scsi_Host *);
	75	extern void scsi_proc_host_rm(struct Scsi_Host *);
	76	extern int scsi_init_procfs(void);
	77	extern void scsi_exit_procfs(void);
	78	#else
	79	# define scsi_proc_hostdir_add(sht) do { } while (0)
	80	# define scsi_proc_hostdir_rm(sht) do { } while (0)
	81	# define scsi_proc_host_add(shost) do { } while (0)
	82	# define scsi_proc_host_rm(shost) do { } while (0)
	83	# define scsi_init_procfs() (0)
	84	# define scsi_exit_procfs() do { } while (0)
	85	#endif /* CONFIG_PROC_FS */
	86
	87	/* scsi_scan.c */
	88	extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
	89	unsigned int, unsigned int, int);
	90	extern void scsi_forget_host(struct Scsi_Host *);
	91	extern void scsi_rescan_device(struct device *);
	92
	93	/* scsi_sysctl.c */
	94	#ifdef CONFIG_SYSCTL
	95	extern int scsi_init_sysctl(void);
	96	extern void scsi_exit_sysctl(void);
	97	#else
	98	# define scsi_init_sysctl() (0)
	99	# define scsi_exit_sysctl() do { } while (0)
	100	#endif /* CONFIG_SYSCTL */
	101
	102	/* scsi_sysfs.c */
1da177e4 LT	103	extern int scsi_sysfs_add_sdev(struct scsi_device *);
	104	extern int scsi_sysfs_add_host(struct Scsi_Host *);
	105	extern int scsi_sysfs_register(void);
	106	extern void scsi_sysfs_unregister(void);
	107	extern void scsi_sysfs_device_initialize(struct scsi_device *);
	108	extern int scsi_sysfs_target_initialize(struct scsi_device *);
	109	extern struct scsi_transport_template blank_transport_template;
903f4fed	110	extern void __scsi_remove_device(struct scsi_device *);
1da177e4	111
1da177e4 LT	112	extern struct bus_type scsi_bus_type;
1da177e4 LT	113
84314fd4 JS	114	/* scsi_netlink.c */
	115	#ifdef CONFIG_SCSI_NETLINK
	116	extern void scsi_netlink_init(void);
	117	extern void scsi_netlink_exit(void);
	118	extern struct sock *scsi_nl_sock;
	119	#else
	120	static inline void scsi_netlink_init(void) {}
	121	static inline void scsi_netlink_exit(void) {}
	122	#endif
	123
1da177e4 LT	124	/*
	125	* internal scsi timeout functions: for use by mid-layer and transport
	126	* classes.
	127	*/
	128
1c9e16e4	129	#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
1da177e4 LT	130	extern int scsi_internal_device_block(struct scsi_device *sdev);
	131	extern int scsi_internal_device_unblock(struct scsi_device *sdev);
	132
	133	#endif /* _SCSI_PRIV_H */