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1da177e4 LT |
1 | #ifndef _SCSI_PRIV_H |
2 | #define _SCSI_PRIV_H | |
3 | ||
4 | #include <linux/config.h> | |
5 | #include <linux/device.h> | |
6 | ||
7 | struct request_queue; | |
8 | struct scsi_cmnd; | |
9 | struct scsi_device; | |
10 | struct scsi_host_template; | |
11 | struct scsi_request; | |
12 | struct Scsi_Host; | |
13 | ||
14 | ||
1da177e4 LT |
15 | /* |
16 | * Magic values for certain scsi structs. Shouldn't ever be used. | |
17 | */ | |
18 | #define SCSI_CMND_MAGIC 0xE25C23A5 | |
19 | #define SCSI_REQ_MAGIC 0x75F6D354 | |
20 | ||
1da177e4 LT |
21 | /* |
22 | * Scsi Error Handler Flags | |
23 | */ | |
1da177e4 LT |
24 | #define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */ |
25 | #define SCSI_EH_REC_TIMEOUT 0x0002 /* EH retry timed out */ | |
26 | ||
27 | #define SCSI_SENSE_VALID(scmd) \ | |
28 | (((scmd)->sense_buffer[0] & 0x70) == 0x70) | |
29 | ||
30 | /* | |
31 | * Special value for scanning to specify scanning or rescanning of all | |
32 | * possible channels, (target) ids, or luns on a given shost. | |
33 | */ | |
34 | #define SCAN_WILD_CARD ~0 | |
35 | ||
36 | /* hosts.c */ | |
37 | extern int scsi_init_hosts(void); | |
38 | extern void scsi_exit_hosts(void); | |
39 | ||
40 | /* scsi.c */ | |
41 | extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd); | |
42 | extern int scsi_setup_command_freelist(struct Scsi_Host *shost); | |
43 | extern void scsi_destroy_command_freelist(struct Scsi_Host *shost); | |
1da177e4 LT |
44 | extern int scsi_insert_special_req(struct scsi_request *sreq, int); |
45 | extern void scsi_init_cmd_from_req(struct scsi_cmnd *cmd, | |
46 | struct scsi_request *sreq); | |
47 | extern void __scsi_release_request(struct scsi_request *sreq); | |
48 | extern void __scsi_done(struct scsi_cmnd *cmd); | |
49 | #ifdef CONFIG_SCSI_LOGGING | |
50 | void scsi_log_send(struct scsi_cmnd *cmd); | |
51 | void scsi_log_completion(struct scsi_cmnd *cmd, int disposition); | |
52 | #else | |
53 | static inline void scsi_log_send(struct scsi_cmnd *cmd) | |
54 | { }; | |
55 | static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) | |
56 | { }; | |
57 | #endif | |
58 | ||
59 | /* scsi_devinfo.c */ | |
60 | extern int scsi_get_device_flags(struct scsi_device *sdev, | |
61 | unsigned char *vendor, unsigned char *model); | |
62 | extern int __init scsi_init_devinfo(void); | |
63 | extern void scsi_exit_devinfo(void); | |
64 | ||
65 | /* scsi_error.c */ | |
fe1b2d54 CH |
66 | extern void scsi_add_timer(struct scsi_cmnd *, int, |
67 | void (*)(struct scsi_cmnd *)); | |
68 | extern int scsi_delete_timer(struct scsi_cmnd *); | |
1da177e4 LT |
69 | extern void scsi_times_out(struct scsi_cmnd *cmd); |
70 | extern int scsi_error_handler(void *host); | |
71 | extern int scsi_decide_disposition(struct scsi_cmnd *cmd); | |
72 | extern void scsi_eh_wakeup(struct Scsi_Host *shost); | |
73 | extern int scsi_eh_scmd_add(struct scsi_cmnd *, int); | |
74 | ||
75 | /* scsi_lib.c */ | |
76 | extern int scsi_maybe_unblock_host(struct scsi_device *sdev); | |
77 | extern void scsi_setup_cmd_retry(struct scsi_cmnd *cmd); | |
78 | extern void scsi_device_unbusy(struct scsi_device *sdev); | |
79 | extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason); | |
80 | extern void scsi_next_command(struct scsi_cmnd *cmd); | |
81 | extern void scsi_run_host_queues(struct Scsi_Host *shost); | |
82 | extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev); | |
83 | extern void scsi_free_queue(struct request_queue *q); | |
84 | extern int scsi_init_queue(void); | |
85 | extern void scsi_exit_queue(void); | |
86 | ||
87 | /* scsi_proc.c */ | |
88 | #ifdef CONFIG_SCSI_PROC_FS | |
89 | extern void scsi_proc_hostdir_add(struct scsi_host_template *); | |
90 | extern void scsi_proc_hostdir_rm(struct scsi_host_template *); | |
91 | extern void scsi_proc_host_add(struct Scsi_Host *); | |
92 | extern void scsi_proc_host_rm(struct Scsi_Host *); | |
93 | extern int scsi_init_procfs(void); | |
94 | extern void scsi_exit_procfs(void); | |
95 | #else | |
96 | # define scsi_proc_hostdir_add(sht) do { } while (0) | |
97 | # define scsi_proc_hostdir_rm(sht) do { } while (0) | |
98 | # define scsi_proc_host_add(shost) do { } while (0) | |
99 | # define scsi_proc_host_rm(shost) do { } while (0) | |
100 | # define scsi_init_procfs() (0) | |
101 | # define scsi_exit_procfs() do { } while (0) | |
102 | #endif /* CONFIG_PROC_FS */ | |
103 | ||
104 | /* scsi_scan.c */ | |
105 | extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, | |
106 | unsigned int, unsigned int, int); | |
107 | extern void scsi_forget_host(struct Scsi_Host *); | |
108 | extern void scsi_rescan_device(struct device *); | |
109 | ||
110 | /* scsi_sysctl.c */ | |
111 | #ifdef CONFIG_SYSCTL | |
112 | extern int scsi_init_sysctl(void); | |
113 | extern void scsi_exit_sysctl(void); | |
114 | #else | |
115 | # define scsi_init_sysctl() (0) | |
116 | # define scsi_exit_sysctl() do { } while (0) | |
117 | #endif /* CONFIG_SYSCTL */ | |
118 | ||
119 | /* scsi_sysfs.c */ | |
1da177e4 LT |
120 | extern int scsi_sysfs_add_sdev(struct scsi_device *); |
121 | extern int scsi_sysfs_add_host(struct Scsi_Host *); | |
122 | extern int scsi_sysfs_register(void); | |
123 | extern void scsi_sysfs_unregister(void); | |
124 | extern void scsi_sysfs_device_initialize(struct scsi_device *); | |
125 | extern int scsi_sysfs_target_initialize(struct scsi_device *); | |
126 | extern struct scsi_transport_template blank_transport_template; | |
903f4fed | 127 | extern void __scsi_remove_device(struct scsi_device *); |
1da177e4 | 128 | |
1da177e4 LT |
129 | extern struct bus_type scsi_bus_type; |
130 | ||
131 | /* | |
132 | * internal scsi timeout functions: for use by mid-layer and transport | |
133 | * classes. | |
134 | */ | |
135 | ||
136 | #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT (HZ*60) | |
137 | extern int scsi_internal_device_block(struct scsi_device *sdev); | |
138 | extern int scsi_internal_device_unblock(struct scsi_device *sdev); | |
139 | ||
140 | #endif /* _SCSI_PRIV_H */ |