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