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#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_ABORT_SCHEDULED 0x0002 /* Abort has been scheduled */
22
23#define SCSI_SENSE_VALID(scmd) \
24 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
25
26/* hosts.c */
27extern int scsi_init_hosts(void);
28extern void scsi_exit_hosts(void);
29
30/* scsi.c */
31extern bool scsi_use_blk_mq;
32int scsi_init_sense_cache(struct Scsi_Host *shost);
33void scsi_init_command(struct scsi_device *dev, struct scsi_cmnd *cmd);
34#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 */
45
46/* list of keys for the lists */
47enum {
48 SCSI_DEVINFO_GLOBAL = 0,
49 SCSI_DEVINFO_SPI,
50};
51
52extern int scsi_get_device_flags(struct scsi_device *sdev,
53 const unsigned char *vendor,
54 const unsigned char *model);
55extern 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);
61extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
62extern int scsi_dev_info_add_list(int key, const char *name);
63extern int scsi_dev_info_remove_list(int key);
64
65extern int __init scsi_init_devinfo(void);
66extern void scsi_exit_devinfo(void);
67
68/* scsi_error.c */
69extern void scmd_eh_abort_handler(struct work_struct *work);
70extern enum blk_eh_timer_return scsi_times_out(struct request *req);
71extern 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 void scsi_eh_scmd_add(struct scsi_cmnd *);
75void 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);
80int scsi_noretry_cmd(struct scsi_cmnd *scmd);
81
82/* scsi_lib.c */
83extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
84extern void scsi_device_unbusy(struct scsi_device *sdev);
85extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
86extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
87extern void scsi_run_host_queues(struct Scsi_Host *shost);
88extern void scsi_requeue_run_queue(struct work_struct *work);
89extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
90extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev);
91extern int scsi_mq_setup_tags(struct Scsi_Host *shost);
92extern void scsi_mq_destroy_tags(struct Scsi_Host *shost);
93extern int scsi_init_queue(void);
94extern void scsi_exit_queue(void);
95extern void scsi_evt_thread(struct work_struct *work);
96struct request_queue;
97struct request;
98
99/* scsi_proc.c */
100#ifdef CONFIG_SCSI_PROC_FS
101extern void scsi_proc_hostdir_add(struct scsi_host_template *);
102extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
103extern void scsi_proc_host_add(struct Scsi_Host *);
104extern void scsi_proc_host_rm(struct Scsi_Host *);
105extern int scsi_init_procfs(void);
106extern void scsi_exit_procfs(void);
107#else
108# define scsi_proc_hostdir_add(sht) do { } while (0)
109# define scsi_proc_hostdir_rm(sht) do { } while (0)
110# define scsi_proc_host_add(shost) do { } while (0)
111# define scsi_proc_host_rm(shost) do { } while (0)
112# define scsi_init_procfs() (0)
113# define scsi_exit_procfs() do { } while (0)
114#endif /* CONFIG_PROC_FS */
115
116/* scsi_scan.c */
117extern char scsi_scan_type[];
118extern int scsi_complete_async_scans(void);
119extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
120 unsigned int, u64, enum scsi_scan_mode);
121extern void scsi_forget_host(struct Scsi_Host *);
122extern void scsi_rescan_device(struct device *);
123
124/* scsi_sysctl.c */
125#ifdef CONFIG_SYSCTL
126extern int scsi_init_sysctl(void);
127extern void scsi_exit_sysctl(void);
128#else
129# define scsi_init_sysctl() (0)
130# define scsi_exit_sysctl() do { } while (0)
131#endif /* CONFIG_SYSCTL */
132
133/* scsi_sysfs.c */
134extern int scsi_sysfs_add_sdev(struct scsi_device *);
135extern int scsi_sysfs_add_host(struct Scsi_Host *);
136extern int scsi_sysfs_register(void);
137extern void scsi_sysfs_unregister(void);
138extern void scsi_sysfs_device_initialize(struct scsi_device *);
139extern int scsi_sysfs_target_initialize(struct scsi_device *);
140extern struct scsi_transport_template blank_transport_template;
141extern void __scsi_remove_device(struct scsi_device *);
142
143extern struct bus_type scsi_bus_type;
144extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
145
146/* scsi_netlink.c */
147#ifdef CONFIG_SCSI_NETLINK
148extern void scsi_netlink_init(void);
149extern void scsi_netlink_exit(void);
150extern struct sock *scsi_nl_sock;
151#else
152static inline void scsi_netlink_init(void) {}
153static inline void scsi_netlink_exit(void) {}
154#endif
155
156/* scsi_pm.c */
157#ifdef CONFIG_PM
158extern const struct dev_pm_ops scsi_bus_pm_ops;
159
160extern void scsi_autopm_get_target(struct scsi_target *);
161extern void scsi_autopm_put_target(struct scsi_target *);
162extern int scsi_autopm_get_host(struct Scsi_Host *);
163extern void scsi_autopm_put_host(struct Scsi_Host *);
164#else
165static inline void scsi_autopm_get_target(struct scsi_target *t) {}
166static inline void scsi_autopm_put_target(struct scsi_target *t) {}
167static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
168static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
169#endif /* CONFIG_PM */
170
171extern struct async_domain scsi_sd_pm_domain;
172extern struct async_domain scsi_sd_probe_domain;
173
174/* scsi_dh.c */
175#ifdef CONFIG_SCSI_DH
176int scsi_dh_add_device(struct scsi_device *sdev);
177void scsi_dh_release_device(struct scsi_device *sdev);
178#else
179static inline int scsi_dh_add_device(struct scsi_device *sdev) { return 0; }
180static inline void scsi_dh_release_device(struct scsi_device *sdev) { }
181#endif
182static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
183
184/*
185 * internal scsi timeout functions: for use by mid-layer and transport
186 * classes.
187 */
188
189#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
190
191#endif /* _SCSI_PRIV_H */