4 #include <linux/config.h>
5 #include <linux/device.h>
10 struct scsi_host_template;
15 * Scsi Error Handler Flags
17 #define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */
19 #define SCSI_SENSE_VALID(scmd) \
20 (((scmd)->sense_buffer[0] & 0x70) == 0x70)
23 extern int scsi_init_hosts(void);
24 extern void scsi_exit_hosts(void);
27 extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd);
28 extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
29 extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
30 extern void __scsi_done(struct scsi_cmnd *cmd);
31 extern int scsi_retry_command(struct scsi_cmnd *cmd);
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);
36 static inline void scsi_log_send(struct scsi_cmnd *cmd)
38 static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
43 extern int scsi_get_device_flags(struct scsi_device *sdev,
44 const unsigned char *vendor,
45 const unsigned char *model);
46 extern int __init scsi_init_devinfo(void);
47 extern void scsi_exit_devinfo(void);
50 extern void scsi_add_timer(struct scsi_cmnd *, int,
51 void (*)(struct scsi_cmnd *));
52 extern int scsi_delete_timer(struct scsi_cmnd *);
53 extern void scsi_times_out(struct scsi_cmnd *cmd);
54 extern int scsi_error_handler(void *host);
55 extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
56 extern void scsi_eh_wakeup(struct Scsi_Host *shost);
57 extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
60 extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
61 extern void scsi_setup_cmd_retry(struct scsi_cmnd *cmd);
62 extern void scsi_device_unbusy(struct scsi_device *sdev);
63 extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
64 extern void scsi_next_command(struct scsi_cmnd *cmd);
65 extern void scsi_run_host_queues(struct Scsi_Host *shost);
66 extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
67 extern void scsi_free_queue(struct request_queue *q);
68 extern int scsi_init_queue(void);
69 extern void scsi_exit_queue(void);
72 #ifdef CONFIG_SCSI_PROC_FS
73 extern void scsi_proc_hostdir_add(struct scsi_host_template *);
74 extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
75 extern void scsi_proc_host_add(struct Scsi_Host *);
76 extern void scsi_proc_host_rm(struct Scsi_Host *);
77 extern int scsi_init_procfs(void);
78 extern void scsi_exit_procfs(void);
80 # define scsi_proc_hostdir_add(sht) do { } while (0)
81 # define scsi_proc_hostdir_rm(sht) do { } while (0)
82 # define scsi_proc_host_add(shost) do { } while (0)
83 # define scsi_proc_host_rm(shost) do { } while (0)
84 # define scsi_init_procfs() (0)
85 # define scsi_exit_procfs() do { } while (0)
86 #endif /* CONFIG_PROC_FS */
89 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
90 unsigned int, unsigned int, int);
91 extern void scsi_forget_host(struct Scsi_Host *);
92 extern void scsi_rescan_device(struct device *);
96 extern int scsi_init_sysctl(void);
97 extern void scsi_exit_sysctl(void);
99 # define scsi_init_sysctl() (0)
100 # define scsi_exit_sysctl() do { } while (0)
101 #endif /* CONFIG_SYSCTL */
104 extern int scsi_sysfs_add_sdev(struct scsi_device *);
105 extern int scsi_sysfs_add_host(struct Scsi_Host *);
106 extern int scsi_sysfs_register(void);
107 extern void scsi_sysfs_unregister(void);
108 extern void scsi_sysfs_device_initialize(struct scsi_device *);
109 extern int scsi_sysfs_target_initialize(struct scsi_device *);
110 extern struct scsi_transport_template blank_transport_template;
111 extern void __scsi_remove_device(struct scsi_device *);
113 extern struct bus_type scsi_bus_type;
116 * internal scsi timeout functions: for use by mid-layer and transport
120 #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT (HZ*60)
121 extern int scsi_internal_device_block(struct scsi_device *sdev);
122 extern int scsi_internal_device_unblock(struct scsi_device *sdev);
124 #endif /* _SCSI_PRIV_H */