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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;
Jens Axboe242f9dc2008-09-14 05:55:09 -07007struct request;
Linus Torvalds1da177e2005-04-16 15:20:36 -07008struct scsi_cmnd;
9struct scsi_device;
Alan Sternbc4f2402010-06-17 10:41:42 -040010struct scsi_target;
Linus Torvalds1da177e2005-04-16 15:20:36 -070011struct scsi_host_template;
Linus Torvalds1da177e2005-04-16 15:20:36 -070012struct Scsi_Host;
James Smart84314fd2006-08-18 17:30:09 -040013struct scsi_nl_hdr;
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
15
16/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 * Scsi Error Handler Flags
18 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070019#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
21#define SCSI_SENSE_VALID(scmd) \
22 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
23
Linus Torvalds1da177e2005-04-16 15:20:36 -070024/* hosts.c */
25extern int scsi_init_hosts(void);
26extern void scsi_exit_hosts(void);
27
28/* scsi.c */
29extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
30extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
31extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
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
42/* scsi_devinfo.c */
James Bottomley598fa4b2009-06-17 15:01:58 -040043
44/* list of keys for the lists */
45enum {
46 SCSI_DEVINFO_GLOBAL = 0,
James Bottomleya9e0edb2009-06-17 19:05:05 +000047 SCSI_DEVINFO_SPI,
Peter Jones940d7fa2011-01-06 15:38:24 -050048 SCSI_DEVINFO_DH,
James Bottomley598fa4b2009-06-17 15:01:58 -040049};
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051extern int scsi_get_device_flags(struct scsi_device *sdev,
James Bottomley7f23e142005-12-01 12:50:13 -060052 const unsigned char *vendor,
53 const unsigned char *model);
James Bottomley598fa4b2009-06-17 15:01:58 -040054extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
55 const unsigned char *vendor,
56 const unsigned char *model, int key);
57extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
58 char *model, char *strflags,
59 int flags, int key);
Peter Jones38a039b2011-01-06 15:31:29 -050060extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
James Bottomley598fa4b2009-06-17 15:01:58 -040061extern int scsi_dev_info_add_list(int key, const char *name);
62extern int scsi_dev_info_remove_list(int key);
63
Linus Torvalds1da177e2005-04-16 15:20:36 -070064extern int __init scsi_init_devinfo(void);
65extern void scsi_exit_devinfo(void);
66
67/* scsi_error.c */
Jens Axboe242f9dc2008-09-14 05:55:09 -070068extern enum blk_eh_timer_return scsi_times_out(struct request *req);
Linus Torvalds1da177e2005-04-16 15:20:36 -070069extern int scsi_error_handler(void *host);
70extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
71extern void scsi_eh_wakeup(struct Scsi_Host *shost);
72extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
Darrick J. Wongdca84e42007-01-26 14:08:49 -080073void scsi_eh_ready_devs(struct Scsi_Host *shost,
74 struct list_head *work_q,
75 struct list_head *done_q);
76int scsi_eh_get_sense(struct list_head *work_q,
77 struct list_head *done_q);
Mike Christie4a274462008-08-19 18:45:31 -050078int scsi_noretry_cmd(struct scsi_cmnd *scmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -070079
80/* scsi_lib.c */
81extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070082extern void scsi_device_unbusy(struct scsi_device *sdev);
83extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
84extern void scsi_next_command(struct scsi_cmnd *cmd);
Linus Torvalds7b3d9542008-01-06 10:17:12 -080085extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070086extern void scsi_run_host_queues(struct Scsi_Host *shost);
87extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
88extern void scsi_free_queue(struct request_queue *q);
89extern int scsi_init_queue(void);
90extern void scsi_exit_queue(void);
James Bottomley751bf4d2008-01-02 11:14:30 -060091struct request_queue;
92struct request;
Martin K. Petersen7027ad72008-07-17 17:08:48 -040093extern struct kmem_cache *scsi_sdb_cache;
Linus Torvalds1da177e2005-04-16 15:20:36 -070094
95/* scsi_proc.c */
96#ifdef CONFIG_SCSI_PROC_FS
97extern void scsi_proc_hostdir_add(struct scsi_host_template *);
98extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
99extern void scsi_proc_host_add(struct Scsi_Host *);
100extern void scsi_proc_host_rm(struct Scsi_Host *);
101extern int scsi_init_procfs(void);
102extern void scsi_exit_procfs(void);
103#else
104# define scsi_proc_hostdir_add(sht) do { } while (0)
105# define scsi_proc_hostdir_rm(sht) do { } while (0)
106# define scsi_proc_host_add(shost) do { } while (0)
107# define scsi_proc_host_rm(shost) do { } while (0)
108# define scsi_init_procfs() (0)
109# define scsi_exit_procfs() do { } while (0)
110#endif /* CONFIG_PROC_FS */
111
112/* scsi_scan.c */
113extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
114 unsigned int, unsigned int, int);
115extern void scsi_forget_host(struct Scsi_Host *);
116extern void scsi_rescan_device(struct device *);
117
118/* scsi_sysctl.c */
119#ifdef CONFIG_SYSCTL
120extern int scsi_init_sysctl(void);
121extern void scsi_exit_sysctl(void);
122#else
123# define scsi_init_sysctl() (0)
124# define scsi_exit_sysctl() do { } while (0)
125#endif /* CONFIG_SYSCTL */
126
127/* scsi_sysfs.c */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128extern int scsi_sysfs_add_sdev(struct scsi_device *);
129extern int scsi_sysfs_add_host(struct Scsi_Host *);
130extern int scsi_sysfs_register(void);
131extern void scsi_sysfs_unregister(void);
132extern void scsi_sysfs_device_initialize(struct scsi_device *);
133extern int scsi_sysfs_target_initialize(struct scsi_device *);
134extern struct scsi_transport_template blank_transport_template;
Alan Stern903f4fe2005-07-26 10:20:53 -0400135extern void __scsi_remove_device(struct scsi_device *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137extern struct bus_type scsi_bus_type;
David Brownella4dbd672009-06-24 10:06:31 -0700138extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139
James Smart84314fd2006-08-18 17:30:09 -0400140/* scsi_netlink.c */
141#ifdef CONFIG_SCSI_NETLINK
142extern void scsi_netlink_init(void);
143extern void scsi_netlink_exit(void);
144extern struct sock *scsi_nl_sock;
145#else
146static inline void scsi_netlink_init(void) {}
147static inline void scsi_netlink_exit(void) {}
148#endif
149
Alan Sterndb5bd1e2010-06-17 10:36:49 -0400150/* scsi_pm.c */
Rafael J. Wysockiaa338602011-02-11 00:06:54 +0100151#ifdef CONFIG_PM
Alan Sterndb5bd1e2010-06-17 10:36:49 -0400152extern const struct dev_pm_ops scsi_bus_pm_ops;
Alan Sterndb5bd1e2010-06-17 10:36:49 -0400153#endif
Alan Sternbc4f2402010-06-17 10:41:42 -0400154#ifdef CONFIG_PM_RUNTIME
155extern void scsi_autopm_get_target(struct scsi_target *);
156extern void scsi_autopm_put_target(struct scsi_target *);
157extern int scsi_autopm_get_host(struct Scsi_Host *);
158extern void scsi_autopm_put_host(struct Scsi_Host *);
159#else
160static inline void scsi_autopm_get_target(struct scsi_target *t) {}
161static inline void scsi_autopm_put_target(struct scsi_target *t) {}
162static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
163static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
164#endif /* CONFIG_PM_RUNTIME */
Alan Sterndb5bd1e2010-06-17 10:36:49 -0400165
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166/*
167 * internal scsi timeout functions: for use by mid-layer and transport
168 * classes.
169 */
170
James Smart1c9e16e2006-05-16 16:13:36 -0400171#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172extern int scsi_internal_device_block(struct scsi_device *sdev);
173extern int scsi_internal_device_unblock(struct scsi_device *sdev);
174
175#endif /* _SCSI_PRIV_H */