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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>
Dan Williams2955b472012-07-09 19:33:25 -07005#include <linux/async.h>
Mike Christie5d9fb5c2012-05-17 23:56:57 -05006#include <scsi/scsi_device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07007
8struct request_queue;
Jens Axboe242f9dc2008-09-14 05:55:09 -07009struct request;
Linus Torvalds1da177e2005-04-16 15:20:36 -070010struct scsi_cmnd;
11struct scsi_device;
Alan Sternbc4f2402010-06-17 10:41:42 -040012struct scsi_target;
Linus Torvalds1da177e2005-04-16 15:20:36 -070013struct scsi_host_template;
Linus Torvalds1da177e2005-04-16 15:20:36 -070014struct Scsi_Host;
James Smart84314fd2006-08-18 17:30:09 -040015struct scsi_nl_hdr;
Linus Torvalds1da177e2005-04-16 15:20:36 -070016
17
18/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070019 * Scsi Error Handler Flags
20 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070021#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
Hannes Reineckee494f6a2013-11-11 13:44:54 +010022#define SCSI_EH_ABORT_SCHEDULED 0x0002 /* Abort has been scheduled */
Linus Torvalds1da177e2005-04-16 15:20:36 -070023
24#define SCSI_SENSE_VALID(scmd) \
25 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
26
Linus Torvalds1da177e2005-04-16 15:20:36 -070027/* hosts.c */
28extern int scsi_init_hosts(void);
29extern void scsi_exit_hosts(void);
30
31/* scsi.c */
Linus Torvalds1da177e2005-04-16 15:20:36 -070032extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
33extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#ifdef CONFIG_SCSI_LOGGING
35void scsi_log_send(struct scsi_cmnd *cmd);
36void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
37#else
38static inline void scsi_log_send(struct scsi_cmnd *cmd)
39 { };
40static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
41 { };
42#endif
43
44/* scsi_devinfo.c */
James Bottomley598fa4b2009-06-17 15:01:58 -040045
46/* list of keys for the lists */
47enum {
48 SCSI_DEVINFO_GLOBAL = 0,
James Bottomleya9e0edb2009-06-17 19:05:05 +000049 SCSI_DEVINFO_SPI,
James Bottomley598fa4b2009-06-17 15:01:58 -040050};
51
Linus Torvalds1da177e2005-04-16 15:20:36 -070052extern int scsi_get_device_flags(struct scsi_device *sdev,
James Bottomley7f23e142005-12-01 12:50:13 -060053 const unsigned char *vendor,
54 const unsigned char *model);
James Bottomley598fa4b2009-06-17 15:01:58 -040055extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
56 const unsigned char *vendor,
57 const unsigned char *model, int key);
58extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
59 char *model, char *strflags,
60 int flags, int key);
Peter Jones38a039b2011-01-06 15:31:29 -050061extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
James Bottomley598fa4b2009-06-17 15:01:58 -040062extern int scsi_dev_info_add_list(int key, const char *name);
63extern int scsi_dev_info_remove_list(int key);
64
Linus Torvalds1da177e2005-04-16 15:20:36 -070065extern int __init scsi_init_devinfo(void);
66extern void scsi_exit_devinfo(void);
67
68/* scsi_error.c */
Hannes Reineckee494f6a2013-11-11 13:44:54 +010069extern void scmd_eh_abort_handler(struct work_struct *work);
Jens Axboe242f9dc2008-09-14 05:55:09 -070070extern enum blk_eh_timer_return scsi_times_out(struct request *req);
Linus Torvalds1da177e2005-04-16 15:20:36 -070071extern int scsi_error_handler(void *host);
72extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
73extern void scsi_eh_wakeup(struct Scsi_Host *shost);
74extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
Darrick J. Wongdca84e42007-01-26 14:08:49 -080075void scsi_eh_ready_devs(struct Scsi_Host *shost,
76 struct list_head *work_q,
77 struct list_head *done_q);
78int scsi_eh_get_sense(struct list_head *work_q,
79 struct list_head *done_q);
Mike Christie4a274462008-08-19 18:45:31 -050080int scsi_noretry_cmd(struct scsi_cmnd *scmd);
Linus Torvalds1da177e2005-04-16 15:20:36 -070081
82/* scsi_lib.c */
83extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -070084extern void scsi_device_unbusy(struct scsi_device *sdev);
Bart Van Assche84feb162012-06-29 15:35:05 +000085extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
Linus Torvalds7b3d9542008-01-06 10:17:12 -080086extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
Linus Torvalds1da177e2005-04-16 15:20:36 -070087extern void scsi_run_host_queues(struct Scsi_Host *shost);
88extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
Christoph Hellwigd2852032014-01-17 12:06:53 +010089extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev);
90extern int scsi_mq_setup_tags(struct Scsi_Host *shost);
91extern void scsi_mq_destroy_tags(struct Scsi_Host *shost);
Linus Torvalds1da177e2005-04-16 15:20:36 -070092extern int scsi_init_queue(void);
93extern void scsi_exit_queue(void);
James Bottomley751bf4d2008-01-02 11:14:30 -060094struct request_queue;
95struct request;
Martin K. Petersen7027ad72008-07-17 17:08:48 -040096extern struct kmem_cache *scsi_sdb_cache;
Linus Torvalds1da177e2005-04-16 15:20:36 -070097
98/* scsi_proc.c */
99#ifdef CONFIG_SCSI_PROC_FS
100extern void scsi_proc_hostdir_add(struct scsi_host_template *);
101extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
102extern void scsi_proc_host_add(struct Scsi_Host *);
103extern void scsi_proc_host_rm(struct Scsi_Host *);
104extern int scsi_init_procfs(void);
105extern void scsi_exit_procfs(void);
106#else
107# define scsi_proc_hostdir_add(sht) do { } while (0)
108# define scsi_proc_hostdir_rm(sht) do { } while (0)
109# define scsi_proc_host_add(shost) do { } while (0)
110# define scsi_proc_host_rm(shost) do { } while (0)
111# define scsi_init_procfs() (0)
112# define scsi_exit_procfs() do { } while (0)
113#endif /* CONFIG_PROC_FS */
114
115/* scsi_scan.c */
Dan Williams3c31b522014-04-10 15:30:35 -0700116extern char scsi_scan_type[];
Alan Sternfea6d602012-02-17 16:25:08 -0500117extern int scsi_complete_async_scans(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
Hannes Reinecke9cb78c12014-06-25 15:27:36 +0200119 unsigned int, u64, int);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120extern void scsi_forget_host(struct Scsi_Host *);
121extern void scsi_rescan_device(struct device *);
122
123/* scsi_sysctl.c */
124#ifdef CONFIG_SYSCTL
125extern int scsi_init_sysctl(void);
126extern void scsi_exit_sysctl(void);
127#else
128# define scsi_init_sysctl() (0)
129# define scsi_exit_sysctl() do { } while (0)
130#endif /* CONFIG_SYSCTL */
131
132/* scsi_sysfs.c */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133extern int scsi_sysfs_add_sdev(struct scsi_device *);
134extern int scsi_sysfs_add_host(struct Scsi_Host *);
135extern int scsi_sysfs_register(void);
136extern void scsi_sysfs_unregister(void);
137extern void scsi_sysfs_device_initialize(struct scsi_device *);
138extern int scsi_sysfs_target_initialize(struct scsi_device *);
139extern struct scsi_transport_template blank_transport_template;
Alan Stern903f4fe2005-07-26 10:20:53 -0400140extern void __scsi_remove_device(struct scsi_device *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142extern struct bus_type scsi_bus_type;
David Brownella4dbd672009-06-24 10:06:31 -0700143extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144
James Smart84314fd2006-08-18 17:30:09 -0400145/* scsi_netlink.c */
146#ifdef CONFIG_SCSI_NETLINK
147extern void scsi_netlink_init(void);
148extern void scsi_netlink_exit(void);
149extern struct sock *scsi_nl_sock;
150#else
151static inline void scsi_netlink_init(void) {}
152static inline void scsi_netlink_exit(void) {}
153#endif
154
Alan Sterndb5bd1e2010-06-17 10:36:49 -0400155/* scsi_pm.c */
Rafael J. Wysockiaa338602011-02-11 00:06:54 +0100156#ifdef CONFIG_PM
Alan Sterndb5bd1e2010-06-17 10:36:49 -0400157extern const struct dev_pm_ops scsi_bus_pm_ops;
Rafael J. Wysocki4f7ad522014-12-14 23:13:55 +0100158
Alan Sternbc4f2402010-06-17 10:41:42 -0400159extern void scsi_autopm_get_target(struct scsi_target *);
160extern void scsi_autopm_put_target(struct scsi_target *);
161extern int scsi_autopm_get_host(struct Scsi_Host *);
162extern void scsi_autopm_put_host(struct Scsi_Host *);
163#else
164static inline void scsi_autopm_get_target(struct scsi_target *t) {}
165static inline void scsi_autopm_put_target(struct scsi_target *t) {}
166static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
167static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
Rafael J. Wysocki4f7ad522014-12-14 23:13:55 +0100168#endif /* CONFIG_PM */
Alan Sterndb5bd1e2010-06-17 10:36:49 -0400169
Dan Williams3c31b522014-04-10 15:30:35 -0700170extern struct async_domain scsi_sd_pm_domain;
Dan Williams2955b472012-07-09 19:33:25 -0700171extern struct async_domain scsi_sd_probe_domain;
Dan Williamsa7a20d12012-03-22 17:05:11 -0700172
Christoph Hellwig086b91d2015-08-27 14:16:57 +0200173/* scsi_dh.c */
174#ifdef CONFIG_SCSI_DH
175int scsi_dh_add_device(struct scsi_device *sdev);
Junichi Nomura23695e42015-10-06 04:32:57 +0000176void scsi_dh_release_device(struct scsi_device *sdev);
Christoph Hellwig086b91d2015-08-27 14:16:57 +0200177#else
178static inline int scsi_dh_add_device(struct scsi_device *sdev) { return 0; }
Junichi Nomura23695e42015-10-06 04:32:57 +0000179static inline void scsi_dh_release_device(struct scsi_device *sdev) { }
Christoph Hellwig086b91d2015-08-27 14:16:57 +0200180#endif
Hannes Reinecke41f95dd2015-12-01 10:16:41 +0100181static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
Christoph Hellwig086b91d2015-08-27 14:16:57 +0200182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183/*
184 * internal scsi timeout functions: for use by mid-layer and transport
185 * classes.
186 */
187
James Smart1c9e16e2006-05-16 16:13:36 -0400188#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189extern int scsi_internal_device_block(struct scsi_device *sdev);
Mike Christie5d9fb5c2012-05-17 23:56:57 -0500190extern int scsi_internal_device_unblock(struct scsi_device *sdev,
191 enum scsi_device_state new_state);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192
193#endif /* _SCSI_PRIV_H */