diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/scsi_priv.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/scsi/scsi_priv.h')
-rw-r--r-- | drivers/scsi/scsi_priv.h | 165 |
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 | |||
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 | |||
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 */ | ||
62 | extern int scsi_init_hosts(void); | ||
63 | extern void scsi_exit_hosts(void); | ||
64 | |||
65 | /* scsi.c */ | ||
66 | extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd); | ||
67 | extern int scsi_setup_command_freelist(struct Scsi_Host *shost); | ||
68 | extern void scsi_destroy_command_freelist(struct Scsi_Host *shost); | ||
69 | extern void scsi_done(struct scsi_cmnd *cmd); | ||
70 | extern int scsi_retry_command(struct scsi_cmnd *cmd); | ||
71 | extern int scsi_insert_special_req(struct scsi_request *sreq, int); | ||
72 | extern void scsi_init_cmd_from_req(struct scsi_cmnd *cmd, | ||
73 | struct scsi_request *sreq); | ||
74 | extern void __scsi_release_request(struct scsi_request *sreq); | ||
75 | extern void __scsi_done(struct scsi_cmnd *cmd); | ||
76 | #ifdef CONFIG_SCSI_LOGGING | ||
77 | void scsi_log_send(struct scsi_cmnd *cmd); | ||
78 | void scsi_log_completion(struct scsi_cmnd *cmd, int disposition); | ||
79 | #else | ||
80 | static inline void scsi_log_send(struct scsi_cmnd *cmd) | ||
81 | { }; | ||
82 | static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) | ||
83 | { }; | ||
84 | #endif | ||
85 | |||
86 | /* scsi_devinfo.c */ | ||
87 | extern int scsi_get_device_flags(struct scsi_device *sdev, | ||
88 | unsigned char *vendor, unsigned char *model); | ||
89 | extern int __init scsi_init_devinfo(void); | ||
90 | extern void scsi_exit_devinfo(void); | ||
91 | |||
92 | /* scsi_error.c */ | ||
93 | extern void scsi_times_out(struct scsi_cmnd *cmd); | ||
94 | extern int scsi_error_handler(void *host); | ||
95 | extern int scsi_decide_disposition(struct scsi_cmnd *cmd); | ||
96 | extern void scsi_eh_wakeup(struct Scsi_Host *shost); | ||
97 | extern int scsi_eh_scmd_add(struct scsi_cmnd *, int); | ||
98 | |||
99 | /* scsi_lib.c */ | ||
100 | extern int scsi_maybe_unblock_host(struct scsi_device *sdev); | ||
101 | extern void scsi_setup_cmd_retry(struct scsi_cmnd *cmd); | ||
102 | extern void scsi_device_unbusy(struct scsi_device *sdev); | ||
103 | extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason); | ||
104 | extern void scsi_next_command(struct scsi_cmnd *cmd); | ||
105 | extern void scsi_run_host_queues(struct Scsi_Host *shost); | ||
106 | extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev); | ||
107 | extern void scsi_free_queue(struct request_queue *q); | ||
108 | extern int scsi_init_queue(void); | ||
109 | extern void scsi_exit_queue(void); | ||
110 | |||
111 | /* scsi_proc.c */ | ||
112 | #ifdef CONFIG_SCSI_PROC_FS | ||
113 | extern void scsi_proc_hostdir_add(struct scsi_host_template *); | ||
114 | extern void scsi_proc_hostdir_rm(struct scsi_host_template *); | ||
115 | extern void scsi_proc_host_add(struct Scsi_Host *); | ||
116 | extern void scsi_proc_host_rm(struct Scsi_Host *); | ||
117 | extern int scsi_init_procfs(void); | ||
118 | extern 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 */ | ||
129 | extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, | ||
130 | unsigned int, unsigned int, int); | ||
131 | extern void scsi_forget_host(struct Scsi_Host *); | ||
132 | extern void scsi_rescan_device(struct device *); | ||
133 | |||
134 | /* scsi_sysctl.c */ | ||
135 | #ifdef CONFIG_SYSCTL | ||
136 | extern int scsi_init_sysctl(void); | ||
137 | extern 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 */ | ||
144 | extern void scsi_device_dev_release(struct device *); | ||
145 | extern int scsi_sysfs_add_sdev(struct scsi_device *); | ||
146 | extern int scsi_sysfs_add_host(struct Scsi_Host *); | ||
147 | extern int scsi_sysfs_register(void); | ||
148 | extern void scsi_sysfs_unregister(void); | ||
149 | extern void scsi_sysfs_device_initialize(struct scsi_device *); | ||
150 | extern int scsi_sysfs_target_initialize(struct scsi_device *); | ||
151 | extern struct scsi_transport_template blank_transport_template; | ||
152 | |||
153 | extern struct class sdev_class; | ||
154 | extern 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) | ||
162 | extern int scsi_internal_device_block(struct scsi_device *sdev); | ||
163 | extern int scsi_internal_device_unblock(struct scsi_device *sdev); | ||
164 | |||
165 | #endif /* _SCSI_PRIV_H */ | ||