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_devinfo.c */
42
43/* list of keys for the lists */
44enum {
45 SCSI_DEVINFO_GLOBAL = 0,
46 SCSI_DEVINFO_SPI,
47};
48
49extern int scsi_get_device_flags(struct scsi_device *sdev,
50 const unsigned char *vendor,
51 const unsigned char *model);
52extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
53 const unsigned char *vendor,
54 const unsigned char *model, int key);
55extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
56 char *model, char *strflags,
57 int flags, int key);
58extern int scsi_dev_info_add_list(int key, const char *name);
59extern int scsi_dev_info_remove_list(int key);
60
61extern int __init scsi_init_devinfo(void);
62extern void scsi_exit_devinfo(void);
63
64/* scsi_error.c */
65extern enum blk_eh_timer_return scsi_times_out(struct request *req);
66extern int scsi_error_handler(void *host);
67extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
68extern void scsi_eh_wakeup(struct Scsi_Host *shost);
69extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
70void scsi_eh_ready_devs(struct Scsi_Host *shost,
71 struct list_head *work_q,
72 struct list_head *done_q);
73int scsi_eh_get_sense(struct list_head *work_q,
74 struct list_head *done_q);
75int scsi_noretry_cmd(struct scsi_cmnd *scmd);
76
77/* scsi_lib.c */
78extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
79extern void scsi_device_unbusy(struct scsi_device *sdev);
80extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
81extern void scsi_next_command(struct scsi_cmnd *cmd);
82extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
83extern void scsi_run_host_queues(struct Scsi_Host *shost);
84extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
85extern void scsi_free_queue(struct request_queue *q);
86extern int scsi_init_queue(void);
87extern void scsi_exit_queue(void);
88struct request_queue;
89struct request;
90extern struct kmem_cache *scsi_sdb_cache;
91
92/* scsi_proc.c */
93#ifdef CONFIG_SCSI_PROC_FS
94extern void scsi_proc_hostdir_add(struct scsi_host_template *);
95extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
96extern void scsi_proc_host_add(struct Scsi_Host *);
97extern void scsi_proc_host_rm(struct Scsi_Host *);
98extern int scsi_init_procfs(void);
99extern void scsi_exit_procfs(void);
100#else
101# define scsi_proc_hostdir_add(sht) do { } while (0)
102# define scsi_proc_hostdir_rm(sht) do { } while (0)
103# define scsi_proc_host_add(shost) do { } while (0)
104# define scsi_proc_host_rm(shost) do { } while (0)
105# define scsi_init_procfs() (0)
106# define scsi_exit_procfs() do { } while (0)
107#endif /* CONFIG_PROC_FS */
108
109/* scsi_scan.c */
110extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
111 unsigned int, unsigned int, int);
112extern void scsi_forget_host(struct Scsi_Host *);
113extern void scsi_rescan_device(struct device *);
114
115/* scsi_sysctl.c */
116#ifdef CONFIG_SYSCTL
117extern int scsi_init_sysctl(void);
118extern void scsi_exit_sysctl(void);
119#else
120# define scsi_init_sysctl() (0)
121# define scsi_exit_sysctl() do { } while (0)
122#endif /* CONFIG_SYSCTL */
123
124/* scsi_sysfs.c */
125extern int scsi_sysfs_add_sdev(struct scsi_device *);
126extern int scsi_sysfs_add_host(struct Scsi_Host *);
127extern int scsi_sysfs_register(void);
128extern void scsi_sysfs_unregister(void);
129extern void scsi_sysfs_device_initialize(struct scsi_device *);
130extern int scsi_sysfs_target_initialize(struct scsi_device *);
131extern struct scsi_transport_template blank_transport_template;
132extern void __scsi_remove_device(struct scsi_device *);
133
134extern struct bus_type scsi_bus_type;
135extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
136
137/* scsi_netlink.c */
138#ifdef CONFIG_SCSI_NETLINK
139extern void scsi_netlink_init(void);
140extern void scsi_netlink_exit(void);
141extern struct sock *scsi_nl_sock;
142#else
143static inline void scsi_netlink_init(void) {}
144static inline void scsi_netlink_exit(void) {}
145#endif
146
147/*
148 * internal scsi timeout functions: for use by mid-layer and transport
149 * classes.
150 */
151
152#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
153extern int scsi_internal_device_block(struct scsi_device *sdev);
154extern int scsi_internal_device_unblock(struct scsi_device *sdev);
155
156#endif /* _SCSI_PRIV_H */