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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _SCSI_PRIV_H
2#define _SCSI_PRIV_H
3
Linus Torvalds1da177e2005-04-16 15:20:36 -07004#include <linux/device.h>
5
6struct request_queue;
7struct scsi_cmnd;
8struct scsi_device;
9struct scsi_host_template;
Linus Torvalds1da177e2005-04-16 15:20:36 -070010struct Scsi_Host;
James Smart84314fd2006-08-18 17:30:09 -040011struct scsi_nl_hdr;
Linus Torvalds1da177e2005-04-16 15:20:36 -070012
13
14/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 * Scsi Error Handler Flags
16 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070017#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
Linus Torvalds1da177e2005-04-16 15:20:36 -070018
19#define SCSI_SENSE_VALID(scmd) \
20 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
21
Linus Torvalds1da177e2005-04-16 15:20:36 -070022/* hosts.c */
23extern int scsi_init_hosts(void);
24extern void scsi_exit_hosts(void);
25
26/* scsi.c */
27extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
28extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
29extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
Linus Torvalds1da177e2005-04-16 15:20:36 -070030extern void __scsi_done(struct scsi_cmnd *cmd);
Jens Axboe1aea6432006-01-09 16:03:03 +010031extern int scsi_retry_command(struct scsi_cmnd *cmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -070032#ifdef CONFIG_SCSI_LOGGING
33void scsi_log_send(struct scsi_cmnd *cmd);
34void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
35#else
36static inline void scsi_log_send(struct scsi_cmnd *cmd)
37 { };
38static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
39 { };
40#endif
41
Matthew Wilcox3e082a92006-09-28 15:19:20 -060042/* scsi_scan.c */
43int scsi_complete_async_scans(void);
44
Linus Torvalds1da177e2005-04-16 15:20:36 -070045/* scsi_devinfo.c */
46extern int scsi_get_device_flags(struct scsi_device *sdev,
James Bottomley7f23e142005-12-01 12:50:13 -060047 const unsigned char *vendor,
48 const unsigned char *model);
Linus Torvalds1da177e2005-04-16 15:20:36 -070049extern int __init scsi_init_devinfo(void);
50extern void scsi_exit_devinfo(void);
51
52/* scsi_error.c */
Christoph Hellwigfe1b2d52005-09-06 14:15:37 +020053extern void scsi_add_timer(struct scsi_cmnd *, int,
54 void (*)(struct scsi_cmnd *));
55extern int scsi_delete_timer(struct scsi_cmnd *);
Linus Torvalds1da177e2005-04-16 15:20:36 -070056extern void scsi_times_out(struct scsi_cmnd *cmd);
57extern int scsi_error_handler(void *host);
58extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
59extern void scsi_eh_wakeup(struct Scsi_Host *shost);
60extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
61
62/* scsi_lib.c */
63extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070064extern void scsi_device_unbusy(struct scsi_device *sdev);
65extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
66extern void scsi_next_command(struct scsi_cmnd *cmd);
67extern void scsi_run_host_queues(struct Scsi_Host *shost);
68extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
69extern void scsi_free_queue(struct request_queue *q);
70extern int scsi_init_queue(void);
71extern void scsi_exit_queue(void);
72
73/* scsi_proc.c */
74#ifdef CONFIG_SCSI_PROC_FS
75extern void scsi_proc_hostdir_add(struct scsi_host_template *);
76extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
77extern void scsi_proc_host_add(struct Scsi_Host *);
78extern void scsi_proc_host_rm(struct Scsi_Host *);
79extern int scsi_init_procfs(void);
80extern void scsi_exit_procfs(void);
81#else
82# define scsi_proc_hostdir_add(sht) do { } while (0)
83# define scsi_proc_hostdir_rm(sht) do { } while (0)
84# define scsi_proc_host_add(shost) do { } while (0)
85# define scsi_proc_host_rm(shost) do { } while (0)
86# define scsi_init_procfs() (0)
87# define scsi_exit_procfs() do { } while (0)
88#endif /* CONFIG_PROC_FS */
89
90/* scsi_scan.c */
91extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
92 unsigned int, unsigned int, int);
93extern void scsi_forget_host(struct Scsi_Host *);
94extern void scsi_rescan_device(struct device *);
95
96/* scsi_sysctl.c */
97#ifdef CONFIG_SYSCTL
98extern int scsi_init_sysctl(void);
99extern void scsi_exit_sysctl(void);
100#else
101# define scsi_init_sysctl() (0)
102# define scsi_exit_sysctl() do { } while (0)
103#endif /* CONFIG_SYSCTL */
104
105/* scsi_sysfs.c */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106extern int scsi_sysfs_add_sdev(struct scsi_device *);
107extern int scsi_sysfs_add_host(struct Scsi_Host *);
108extern int scsi_sysfs_register(void);
109extern void scsi_sysfs_unregister(void);
110extern void scsi_sysfs_device_initialize(struct scsi_device *);
111extern int scsi_sysfs_target_initialize(struct scsi_device *);
112extern struct scsi_transport_template blank_transport_template;
Alan Stern903f4fe2005-07-26 10:20:53 -0400113extern void __scsi_remove_device(struct scsi_device *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115extern struct bus_type scsi_bus_type;
116
James Smart84314fd2006-08-18 17:30:09 -0400117/* scsi_netlink.c */
118#ifdef CONFIG_SCSI_NETLINK
119extern void scsi_netlink_init(void);
120extern void scsi_netlink_exit(void);
121extern struct sock *scsi_nl_sock;
122#else
123static inline void scsi_netlink_init(void) {}
124static inline void scsi_netlink_exit(void) {}
125#endif
126
Linus Torvalds1da177e2005-04-16 15:20:36 -0700127/*
128 * internal scsi timeout functions: for use by mid-layer and transport
129 * classes.
130 */
131
James Smart1c9e16e2006-05-16 16:13:36 -0400132#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133extern int scsi_internal_device_block(struct scsi_device *sdev);
134extern int scsi_internal_device_unblock(struct scsi_device *sdev);
135
136#endif /* _SCSI_PRIV_H */