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_target;
11 struct scsi_host_template;
12 struct Scsi_Host;
13 struct scsi_nl_hdr;
14
15
16 /*
17 * Scsi Error Handler Flags
18 */
19 #define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
20
21 #define SCSI_SENSE_VALID(scmd) \
22 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
23
24 /* hosts.c */
25 extern int scsi_init_hosts(void);
26 extern void scsi_exit_hosts(void);
27
28 /* scsi.c */
29 extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
30 extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
31 extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
32 #ifdef CONFIG_SCSI_LOGGING
33 void scsi_log_send(struct scsi_cmnd *cmd);
34 void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
35 #else
scsi_log_send(struct scsi_cmnd * cmd)36 static inline void scsi_log_send(struct scsi_cmnd *cmd)
37 { };
scsi_log_completion(struct scsi_cmnd * cmd,int disposition)38 static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
39 { };
40 #endif
41
42 /* scsi_devinfo.c */
43
44 /* list of keys for the lists */
45 enum {
46 SCSI_DEVINFO_GLOBAL = 0,
47 SCSI_DEVINFO_SPI,
48 };
49
50 extern int scsi_get_device_flags(struct scsi_device *sdev,
51 const unsigned char *vendor,
52 const unsigned char *model);
53 extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
54 const unsigned char *vendor,
55 const unsigned char *model, int key);
56 extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
57 char *model, char *strflags,
58 int flags, int key);
59 extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
60 extern int scsi_dev_info_add_list(int key, const char *name);
61 extern int scsi_dev_info_remove_list(int key);
62
63 extern int __init scsi_init_devinfo(void);
64 extern void scsi_exit_devinfo(void);
65
66 /* scsi_error.c */
67 extern enum blk_eh_timer_return scsi_times_out(struct request *req);
68 extern int scsi_error_handler(void *host);
69 extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
70 extern void scsi_eh_wakeup(struct Scsi_Host *shost);
71 extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
72 void scsi_eh_ready_devs(struct Scsi_Host *shost,
73 struct list_head *work_q,
74 struct list_head *done_q);
75 int scsi_eh_get_sense(struct list_head *work_q,
76 struct list_head *done_q);
77 int scsi_noretry_cmd(struct scsi_cmnd *scmd);
78
79 /* scsi_lib.c */
80 extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
81 extern void scsi_device_unbusy(struct scsi_device *sdev);
82 extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
83 extern void scsi_next_command(struct scsi_cmnd *cmd);
84 extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
85 extern void scsi_run_host_queues(struct Scsi_Host *shost);
86 extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
87 extern int scsi_init_queue(void);
88 extern void scsi_exit_queue(void);
89 struct request_queue;
90 struct request;
91 extern struct kmem_cache *scsi_sdb_cache;
92
93 /* scsi_proc.c */
94 #ifdef CONFIG_SCSI_PROC_FS
95 extern void scsi_proc_hostdir_add(struct scsi_host_template *);
96 extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
97 extern void scsi_proc_host_add(struct Scsi_Host *);
98 extern void scsi_proc_host_rm(struct Scsi_Host *);
99 extern int scsi_init_procfs(void);
100 extern void scsi_exit_procfs(void);
101 #else
102 # define scsi_proc_hostdir_add(sht) do { } while (0)
103 # define scsi_proc_hostdir_rm(sht) do { } while (0)
104 # define scsi_proc_host_add(shost) do { } while (0)
105 # define scsi_proc_host_rm(shost) do { } while (0)
106 # define scsi_init_procfs() (0)
107 # define scsi_exit_procfs() do { } while (0)
108 #endif /* CONFIG_PROC_FS */
109
110 /* scsi_scan.c */
111 extern int scsi_complete_async_scans(void);
112 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
113 unsigned int, unsigned int, int);
114 extern void scsi_forget_host(struct Scsi_Host *);
115 extern void scsi_rescan_device(struct device *);
116
117 /* scsi_sysctl.c */
118 #ifdef CONFIG_SYSCTL
119 extern int scsi_init_sysctl(void);
120 extern void scsi_exit_sysctl(void);
121 #else
122 # define scsi_init_sysctl() (0)
123 # define scsi_exit_sysctl() do { } while (0)
124 #endif /* CONFIG_SYSCTL */
125
126 /* scsi_sysfs.c */
127 extern int scsi_sysfs_add_sdev(struct scsi_device *);
128 extern int scsi_sysfs_add_host(struct Scsi_Host *);
129 extern int scsi_sysfs_register(void);
130 extern void scsi_sysfs_unregister(void);
131 extern void scsi_sysfs_device_initialize(struct scsi_device *);
132 extern int scsi_sysfs_target_initialize(struct scsi_device *);
133 extern struct scsi_transport_template blank_transport_template;
134 extern void __scsi_remove_device(struct scsi_device *);
135
136 extern struct bus_type scsi_bus_type;
137 extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
138
139 /* scsi_netlink.c */
140 #ifdef CONFIG_SCSI_NETLINK
141 extern void scsi_netlink_init(void);
142 extern void scsi_netlink_exit(void);
143 extern struct sock *scsi_nl_sock;
144 #else
scsi_netlink_init(void)145 static inline void scsi_netlink_init(void) {}
scsi_netlink_exit(void)146 static inline void scsi_netlink_exit(void) {}
147 #endif
148
149 /* scsi_pm.c */
150 #ifdef CONFIG_PM
151 extern const struct dev_pm_ops scsi_bus_pm_ops;
152 #endif
153 #ifdef CONFIG_PM_RUNTIME
154 extern void scsi_autopm_get_target(struct scsi_target *);
155 extern void scsi_autopm_put_target(struct scsi_target *);
156 extern int scsi_autopm_get_host(struct Scsi_Host *);
157 extern void scsi_autopm_put_host(struct Scsi_Host *);
158 #else
scsi_autopm_get_target(struct scsi_target * t)159 static inline void scsi_autopm_get_target(struct scsi_target *t) {}
scsi_autopm_put_target(struct scsi_target * t)160 static inline void scsi_autopm_put_target(struct scsi_target *t) {}
scsi_autopm_get_host(struct Scsi_Host * h)161 static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
scsi_autopm_put_host(struct Scsi_Host * h)162 static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
163 #endif /* CONFIG_PM_RUNTIME */
164
165 /*
166 * internal scsi timeout functions: for use by mid-layer and transport
167 * classes.
168 */
169
170 #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */
171 extern int scsi_internal_device_block(struct scsi_device *sdev);
172 extern int scsi_internal_device_unblock(struct scsi_device *sdev);
173
174 #endif /* _SCSI_PRIV_H */
175