tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 SCSI_DEVINFO_DH,
49};
50
51extern int scsi_get_device_flags(struct scsi_device *sdev,
52 const unsigned char *vendor,
53 const unsigned char *model);
54extern 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);
60extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
61extern int scsi_dev_info_add_list(int key, const char *name);
62extern int scsi_dev_info_remove_list(int key);
63
64extern int __init scsi_init_devinfo(void);
65extern void scsi_exit_devinfo(void);
66
67/* scsi_error.c */
68extern enum blk_eh_timer_return scsi_times_out(struct request *req);
69extern 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);
73void 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);
78int scsi_noretry_cmd(struct scsi_cmnd *scmd);
79
80/* scsi_lib.c */
81extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
82extern 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);
85extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
86extern 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);
91struct request_queue;
92struct request;
93extern struct kmem_cache *scsi_sdb_cache;
94
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 */
128extern 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;
135extern void __scsi_remove_device(struct scsi_device *);
136
137extern struct bus_type scsi_bus_type;
138extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
139
140/* 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
150/* scsi_pm.c */
151#ifdef CONFIG_PM
152extern const struct dev_pm_ops scsi_bus_pm_ops;
153#endif
154#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 */
165
166/*
167 * internal scsi timeout functions: for use by mid-layer and transport
168 * classes.
169 */
170
171#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
172extern 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 */