Line data Source code
1 : #ifndef _SCSI_PRIV_H
2 : #define _SCSI_PRIV_H
3 :
4 : #include <linux/device.h>
5 :
6 : struct request_queue;
7 : struct request;
8 : struct scsi_cmnd;
9 : struct scsi_device;
10 : struct scsi_host_template;
11 : struct Scsi_Host;
12 : struct 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 */
24 : extern int scsi_init_hosts(void);
25 : extern void scsi_exit_hosts(void);
26 :
27 : /* scsi.c */
28 : extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
29 : extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
30 : extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
31 : #ifdef CONFIG_SCSI_LOGGING
32 : void scsi_log_send(struct scsi_cmnd *cmd);
33 : void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
34 : #else
35 : static inline void scsi_log_send(struct scsi_cmnd *cmd)
36 : { };
37 0 : static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
38 : { };
39 0 : #endif
40 :
41 : /* scsi_devinfo.c */
42 :
43 : /* list of keys for the lists */
44 : enum {
45 : SCSI_DEVINFO_GLOBAL = 0,
46 : SCSI_DEVINFO_SPI,
47 : };
48 :
49 : extern int scsi_get_device_flags(struct scsi_device *sdev,
50 : const unsigned char *vendor,
51 : const unsigned char *model);
52 : extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
53 : const unsigned char *vendor,
54 : const unsigned char *model, int key);
55 : extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
56 : char *model, char *strflags,
57 : int flags, int key);
58 : extern int scsi_dev_info_add_list(int key, const char *name);
59 : extern int scsi_dev_info_remove_list(int key);
60 :
61 : extern int __init scsi_init_devinfo(void);
62 : extern void scsi_exit_devinfo(void);
63 :
64 : /* scsi_error.c */
65 : extern enum blk_eh_timer_return scsi_times_out(struct request *req);
66 : extern int scsi_error_handler(void *host);
67 : extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
68 : extern void scsi_eh_wakeup(struct Scsi_Host *shost);
69 : extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
70 : void scsi_eh_ready_devs(struct Scsi_Host *shost,
71 : struct list_head *work_q,
72 : struct list_head *done_q);
73 : int scsi_eh_get_sense(struct list_head *work_q,
74 : struct list_head *done_q);
75 : int scsi_noretry_cmd(struct scsi_cmnd *scmd);
76 :
77 : /* scsi_lib.c */
78 : extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
79 : extern void scsi_device_unbusy(struct scsi_device *sdev);
80 : extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
81 : extern void scsi_next_command(struct scsi_cmnd *cmd);
82 : extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
83 : extern void scsi_run_host_queues(struct Scsi_Host *shost);
84 : extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
85 : extern void scsi_free_queue(struct request_queue *q);
86 : extern int scsi_init_queue(void);
87 : extern void scsi_exit_queue(void);
88 : struct request_queue;
89 : struct request;
90 1 : extern struct kmem_cache *scsi_sdb_cache;
91 :
92 : /* scsi_proc.c */
93 : #ifdef CONFIG_SCSI_PROC_FS
94 : extern void scsi_proc_hostdir_add(struct scsi_host_template *);
95 : extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
96 : extern void scsi_proc_host_add(struct Scsi_Host *);
97 : extern void scsi_proc_host_rm(struct Scsi_Host *);
98 : extern int scsi_init_procfs(void);
99 : extern 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 */
110 : extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
111 : unsigned int, unsigned int, int);
112 : extern void scsi_forget_host(struct Scsi_Host *);
113 : extern void scsi_rescan_device(struct device *);
114 :
115 : /* scsi_sysctl.c */
116 : #ifdef CONFIG_SYSCTL
117 : extern int scsi_init_sysctl(void);
118 : extern 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 */
125 : extern int scsi_sysfs_add_sdev(struct scsi_device *);
126 : extern int scsi_sysfs_add_host(struct Scsi_Host *);
127 : extern int scsi_sysfs_register(void);
128 : extern void scsi_sysfs_unregister(void);
129 : extern void scsi_sysfs_device_initialize(struct scsi_device *);
130 : extern int scsi_sysfs_target_initialize(struct scsi_device *);
131 1 : extern struct scsi_transport_template blank_transport_template;
132 : extern void __scsi_remove_device(struct scsi_device *);
133 :
134 1 : extern struct bus_type scsi_bus_type;
135 1 : extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
136 :
137 : /* scsi_netlink.c */
138 : #ifdef CONFIG_SCSI_NETLINK
139 : extern void scsi_netlink_init(void);
140 : extern void scsi_netlink_exit(void);
141 : extern struct sock *scsi_nl_sock;
142 : #else
143 : static inline void scsi_netlink_init(void) {}
144 : static inline void scsi_netlink_exit(void) {}
145 3 : #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 */
153 : extern int scsi_internal_device_block(struct scsi_device *sdev);
154 : extern int scsi_internal_device_unblock(struct scsi_device *sdev);
155 1 :
156 : #endif /* _SCSI_PRIV_H */
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