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-rw-r--r--drivers/scsi/scsi_priv.h165
1 files changed, 165 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
new file mode 100644
index 000000000000..aca3b39fe710
--- /dev/null
+++ b/drivers/scsi/scsi_priv.h
@@ -0,0 +1,165 @@
1#ifndef _SCSI_PRIV_H
2#define _SCSI_PRIV_H
3
4#include <linux/config.h>
5#include <linux/device.h>
6
7struct request_queue;
8struct scsi_cmnd;
9struct scsi_device;
10struct scsi_host_template;
11struct scsi_request;
12struct Scsi_Host;
13
14
15/*
16 * These are the values that the owner field can take.
17 * They are used as an indication of who the command belongs to.
18 */
19#define SCSI_OWNER_HIGHLEVEL 0x100
20#define SCSI_OWNER_MIDLEVEL 0x101
21#define SCSI_OWNER_LOWLEVEL 0x102
22#define SCSI_OWNER_ERROR_HANDLER 0x103
23#define SCSI_OWNER_BH_HANDLER 0x104
24#define SCSI_OWNER_NOBODY 0x105
25
26/*
27 * Magic values for certain scsi structs. Shouldn't ever be used.
28 */
29#define SCSI_CMND_MAGIC 0xE25C23A5
30#define SCSI_REQ_MAGIC 0x75F6D354
31
32/*
33 * Flag bit for the internal_timeout array
34 */
35#define NORMAL_TIMEOUT 0
36
37/*
38 * Scsi Error Handler Flags
39 */
40#define scsi_eh_eflags_chk(scp, flags) \
41 ((scp)->eh_eflags & (flags))
42#define scsi_eh_eflags_set(scp, flags) \
43 do { (scp)->eh_eflags |= (flags); } while(0)
44#define scsi_eh_eflags_clr(scp, flags) \
45 do { (scp)->eh_eflags &= ~(flags); } while(0)
46#define scsi_eh_eflags_clr_all(scp) \
47 (scp->eh_eflags = 0)
48
49#define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
50#define SCSI_EH_REC_TIMEOUT 0x0002 /* EH retry timed out */
51
52#define SCSI_SENSE_VALID(scmd) \
53 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
54
55/*
56 * Special value for scanning to specify scanning or rescanning of all
57 * possible channels, (target) ids, or luns on a given shost.
58 */
59#define SCAN_WILD_CARD ~0
60
61/* hosts.c */
62extern int scsi_init_hosts(void);
63extern void scsi_exit_hosts(void);
64
65/* scsi.c */
66extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
67extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
68extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
69extern void scsi_done(struct scsi_cmnd *cmd);
70extern int scsi_retry_command(struct scsi_cmnd *cmd);
71extern int scsi_insert_special_req(struct scsi_request *sreq, int);
72extern void scsi_init_cmd_from_req(struct scsi_cmnd *cmd,
73 struct scsi_request *sreq);
74extern void __scsi_release_request(struct scsi_request *sreq);
75extern void __scsi_done(struct scsi_cmnd *cmd);
76#ifdef CONFIG_SCSI_LOGGING
77void scsi_log_send(struct scsi_cmnd *cmd);
78void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
79#else
80static inline void scsi_log_send(struct scsi_cmnd *cmd)
81 { };
82static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
83 { };
84#endif
85
86/* scsi_devinfo.c */
87extern int scsi_get_device_flags(struct scsi_device *sdev,
88 unsigned char *vendor, unsigned char *model);
89extern int __init scsi_init_devinfo(void);
90extern void scsi_exit_devinfo(void);
91
92/* scsi_error.c */
93extern void scsi_times_out(struct scsi_cmnd *cmd);
94extern int scsi_error_handler(void *host);
95extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
96extern void scsi_eh_wakeup(struct Scsi_Host *shost);
97extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
98
99/* scsi_lib.c */
100extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
101extern void scsi_setup_cmd_retry(struct scsi_cmnd *cmd);
102extern void scsi_device_unbusy(struct scsi_device *sdev);
103extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
104extern void scsi_next_command(struct scsi_cmnd *cmd);
105extern void scsi_run_host_queues(struct Scsi_Host *shost);
106extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
107extern void scsi_free_queue(struct request_queue *q);
108extern int scsi_init_queue(void);
109extern void scsi_exit_queue(void);
110
111/* scsi_proc.c */
112#ifdef CONFIG_SCSI_PROC_FS
113extern void scsi_proc_hostdir_add(struct scsi_host_template *);
114extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
115extern void scsi_proc_host_add(struct Scsi_Host *);
116extern void scsi_proc_host_rm(struct Scsi_Host *);
117extern int scsi_init_procfs(void);
118extern void scsi_exit_procfs(void);
119#else
120# define scsi_proc_hostdir_add(sht) do { } while (0)
121# define scsi_proc_hostdir_rm(sht) do { } while (0)
122# define scsi_proc_host_add(shost) do { } while (0)
123# define scsi_proc_host_rm(shost) do { } while (0)
124# define scsi_init_procfs() (0)
125# define scsi_exit_procfs() do { } while (0)
126#endif /* CONFIG_PROC_FS */
127
128/* scsi_scan.c */
129extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
130 unsigned int, unsigned int, int);
131extern void scsi_forget_host(struct Scsi_Host *);
132extern void scsi_rescan_device(struct device *);
133
134/* scsi_sysctl.c */
135#ifdef CONFIG_SYSCTL
136extern int scsi_init_sysctl(void);
137extern void scsi_exit_sysctl(void);
138#else
139# define scsi_init_sysctl() (0)
140# define scsi_exit_sysctl() do { } while (0)
141#endif /* CONFIG_SYSCTL */
142
143/* scsi_sysfs.c */
144extern void scsi_device_dev_release(struct device *);
145extern int scsi_sysfs_add_sdev(struct scsi_device *);
146extern int scsi_sysfs_add_host(struct Scsi_Host *);
147extern int scsi_sysfs_register(void);
148extern void scsi_sysfs_unregister(void);
149extern void scsi_sysfs_device_initialize(struct scsi_device *);
150extern int scsi_sysfs_target_initialize(struct scsi_device *);
151extern struct scsi_transport_template blank_transport_template;
152
153extern struct class sdev_class;
154extern struct bus_type scsi_bus_type;
155
156/*
157 * internal scsi timeout functions: for use by mid-layer and transport
158 * classes.
159 */
160
161#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT (HZ*60)
162extern int scsi_internal_device_block(struct scsi_device *sdev);
163extern int scsi_internal_device_unblock(struct scsi_device *sdev);
164
165#endif /* _SCSI_PRIV_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-30 19:31:51 -0500