1 #ifndef _SCSI_PRIV_H 2 #define _SCSI_PRIV_H 3 4 #include <linux/device.h> 5 6 struct request_queue; 7 struct scsi_cmnd; 8 struct scsi_device; 9 struct scsi_host_template; 10 struct Scsi_Host; 11 12 13 /* 14 * Scsi Error Handler Flags 15 */ 16 #define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */ 17 18 #define SCSI_SENSE_VALID(scmd) \ 19 (((scmd)->sense_buffer[0] & 0x70) == 0x70) 20 21 /* hosts.c */ 22 extern int scsi_init_hosts(void); 23 extern void scsi_exit_hosts(void); 24 25 /* scsi.c */ 26 extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd); 27 extern int scsi_setup_command_freelist(struct Scsi_Host *shost); 28 extern void scsi_destroy_command_freelist(struct Scsi_Host *shost); 29 extern void __scsi_done(struct scsi_cmnd *cmd); 30 extern int scsi_retry_command(struct scsi_cmnd *cmd); 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 static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) 38 { }; 39 #endif 40 41 /* scsi_devinfo.c */ 42 extern int scsi_get_device_flags(struct scsi_device *sdev, 43 const unsigned char *vendor, 44 const unsigned char *model); 45 extern int __init scsi_init_devinfo(void); 46 extern void scsi_exit_devinfo(void); 47 48 /* scsi_error.c */ 49 extern void scsi_add_timer(struct scsi_cmnd *, int, 50 void (*)(struct scsi_cmnd *)); 51 extern int scsi_delete_timer(struct scsi_cmnd *); 52 extern void scsi_times_out(struct scsi_cmnd *cmd); 53 extern int scsi_error_handler(void *host); 54 extern int scsi_decide_disposition(struct scsi_cmnd *cmd); 55 extern void scsi_eh_wakeup(struct Scsi_Host *shost); 56 extern int scsi_eh_scmd_add(struct scsi_cmnd *, int); 57 58 /* scsi_lib.c */ 59 extern int scsi_maybe_unblock_host(struct scsi_device *sdev); 60 extern void scsi_setup_cmd_retry(struct scsi_cmnd *cmd); 61 extern void scsi_device_unbusy(struct scsi_device *sdev); 62 extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason); 63 extern void scsi_next_command(struct scsi_cmnd *cmd); 64 extern void scsi_run_host_queues(struct Scsi_Host *shost); 65 extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev); 66 extern void scsi_free_queue(struct request_queue *q); 67 extern int scsi_init_queue(void); 68 extern void scsi_exit_queue(void); 69 70 /* scsi_proc.c */ 71 #ifdef CONFIG_SCSI_PROC_FS 72 extern void scsi_proc_hostdir_add(struct scsi_host_template *); 73 extern void scsi_proc_hostdir_rm(struct scsi_host_template *); 74 extern void scsi_proc_host_add(struct Scsi_Host *); 75 extern void scsi_proc_host_rm(struct Scsi_Host *); 76 extern int scsi_init_procfs(void); 77 extern void scsi_exit_procfs(void); 78 #else 79 # define scsi_proc_hostdir_add(sht) do { } while (0) 80 # define scsi_proc_hostdir_rm(sht) do { } while (0) 81 # define scsi_proc_host_add(shost) do { } while (0) 82 # define scsi_proc_host_rm(shost) do { } while (0) 83 # define scsi_init_procfs() (0) 84 # define scsi_exit_procfs() do { } while (0) 85 #endif /* CONFIG_PROC_FS */ 86 87 /* scsi_scan.c */ 88 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, 89 unsigned int, unsigned int, int); 90 extern void scsi_forget_host(struct Scsi_Host *); 91 extern void scsi_rescan_device(struct device *); 92 93 /* scsi_sysctl.c */ 94 #ifdef CONFIG_SYSCTL 95 extern int scsi_init_sysctl(void); 96 extern void scsi_exit_sysctl(void); 97 #else 98 # define scsi_init_sysctl() (0) 99 # define scsi_exit_sysctl() do { } while (0) 100 #endif /* CONFIG_SYSCTL */ 101 102 /* scsi_sysfs.c */ 103 extern int scsi_sysfs_add_sdev(struct scsi_device *); 104 extern int scsi_sysfs_add_host(struct Scsi_Host *); 105 extern int scsi_sysfs_register(void); 106 extern void scsi_sysfs_unregister(void); 107 extern void scsi_sysfs_device_initialize(struct scsi_device *); 108 extern int scsi_sysfs_target_initialize(struct scsi_device *); 109 extern struct scsi_transport_template blank_transport_template; 110 extern void __scsi_remove_device(struct scsi_device *); 111 112 extern struct bus_type scsi_bus_type; 113 114 /* 115 * internal scsi timeout functions: for use by mid-layer and transport 116 * classes. 117 */ 118 119 #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */ 120 extern int scsi_internal_device_block(struct scsi_device *sdev); 121 extern int scsi_internal_device_unblock(struct scsi_device *sdev); 122 123 #endif /* _SCSI_PRIV_H */ 124