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_host_template;
11struct Scsi_Host;
12struct scsi_nl_hdr;
13
14
15/*
16 * Scsi Error Handler Flags
17 */
18#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
19
20#define SCSI_SENSE_VALID(scmd) \
21 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
22
23/* hosts.c */
24extern int scsi_init_hosts(void);
25extern void scsi_exit_hosts(void);
26
27/* scsi.c */
28extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
29extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
30extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
31#ifdef CONFIG_SCSI_LOGGING
32void scsi_log_send(struct scsi_cmnd *cmd);
33void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
34#else
35static inline void scsi_log_send(struct scsi_cmnd *cmd)
36 { };
37static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
38 { };
39#endif
40
41/* scsi_scan.c */
42int scsi_complete_async_scans(void);
43
44/* scsi_devinfo.c */
45extern int scsi_get_device_flags(struct scsi_device *sdev,
46 const unsigned char *vendor,
47 const unsigned char *model);
48extern int __init scsi_init_devinfo(void);
49extern void scsi_exit_devinfo(void);
50
51/* scsi_error.c */
52extern enum blk_eh_timer_return scsi_times_out(struct request *req);
53extern int scsi_error_handler(void *host);
54extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
55extern void scsi_eh_wakeup(struct Scsi_Host *shost);
56extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
57void scsi_eh_ready_devs(struct Scsi_Host *shost,
58 struct list_head *work_q,
59 struct list_head *done_q);
60int scsi_eh_get_sense(struct list_head *work_q,
61 struct list_head *done_q);
62int scsi_noretry_cmd(struct scsi_cmnd *scmd);
63
64/* scsi_lib.c */
65extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
66extern void scsi_device_unbusy(struct scsi_device *sdev);
67extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
68extern void scsi_next_command(struct scsi_cmnd *cmd);
69extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
70extern void scsi_run_host_queues(struct Scsi_Host *shost);
71extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
72extern void scsi_free_queue(struct request_queue *q);
73extern int scsi_init_queue(void);
74extern void scsi_exit_queue(void);
75struct request_queue;
76struct request;
77extern int scsi_prep_fn(struct request_queue *, struct request *);
78extern struct kmem_cache *scsi_sdb_cache;
79
80/* scsi_proc.c */
81#ifdef CONFIG_SCSI_PROC_FS
82extern void scsi_proc_hostdir_add(struct scsi_host_template *);
83extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
84extern void scsi_proc_host_add(struct Scsi_Host *);
85extern void scsi_proc_host_rm(struct Scsi_Host *);
86extern int scsi_init_procfs(void);
87extern void scsi_exit_procfs(void);
88#else
89# define scsi_proc_hostdir_add(sht) do { } while (0)
90# define scsi_proc_hostdir_rm(sht) do { } while (0)
91# define scsi_proc_host_add(shost) do { } while (0)
92# define scsi_proc_host_rm(shost) do { } while (0)
93# define scsi_init_procfs() (0)
94# define scsi_exit_procfs() do { } while (0)
95#endif /* CONFIG_PROC_FS */
96
97/* scsi_scan.c */
98extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
99 unsigned int, unsigned int, int);
100extern void scsi_forget_host(struct Scsi_Host *);
101extern void scsi_rescan_device(struct device *);
102
103/* scsi_sysctl.c */
104#ifdef CONFIG_SYSCTL
105extern int scsi_init_sysctl(void);
106extern void scsi_exit_sysctl(void);
107#else
108# define scsi_init_sysctl() (0)
109# define scsi_exit_sysctl() do { } while (0)
110#endif /* CONFIG_SYSCTL */
111
112/* scsi_sysfs.c */
113extern int scsi_sysfs_add_sdev(struct scsi_device *);
114extern int scsi_sysfs_add_host(struct Scsi_Host *);
115extern int scsi_sysfs_register(void);
116extern void scsi_sysfs_unregister(void);
117extern void scsi_sysfs_device_initialize(struct scsi_device *);
118extern int scsi_sysfs_target_initialize(struct scsi_device *);
119extern struct scsi_transport_template blank_transport_template;
120extern void __scsi_remove_device(struct scsi_device *);
121
122extern struct bus_type scsi_bus_type;
123extern struct attribute_group *scsi_sysfs_shost_attr_groups[];
124
125/* scsi_netlink.c */
126#ifdef CONFIG_SCSI_NETLINK
127extern void scsi_netlink_init(void);
128extern void scsi_netlink_exit(void);
129extern struct sock *scsi_nl_sock;
130#else
131static inline void scsi_netlink_init(void) {}
132static inline void scsi_netlink_exit(void) {}
133#endif
134
135/*
136 * internal scsi timeout functions: for use by mid-layer and transport
137 * classes.
138 */
139
140#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
141extern int scsi_internal_device_block(struct scsi_device *sdev);
142extern int scsi_internal_device_unblock(struct scsi_device *sdev);
143
144#endif /* _SCSI_PRIV_H */