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_Host; 12 13 14 /* 15 * Scsi Error Handler Flags 16 */ 17 #define SCSI_EH_CANCEL_CMD 0x0001 /* Cancel this cmd */ 18 19 #define SCSI_SENSE_VALID(scmd) \ 20 (((scmd)->sense_buffer[0] & 0x70) == 0x70) 21 22 /* hosts.c */ 23 extern int scsi_init_hosts(void); 24 extern void scsi_exit_hosts(void); 25 26 /* scsi.c */ 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); 35 #else 36 static inline void scsi_log_send(struct scsi_cmnd *cmd) 37 { }; 38 static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) 39 { }; 40 #endif 41 42 /* scsi_devinfo.c */ 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); 48 49 /* scsi_error.c */ 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); 58 59 /* scsi_lib.c */ 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); 70 71 /* scsi_proc.c */ 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); 79 #else 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 */ 87 88 /* scsi_scan.c */ 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 *); 93 94 /* scsi_sysctl.c */ 95 #ifdef CONFIG_SYSCTL 96 extern int scsi_init_sysctl(void); 97 extern void scsi_exit_sysctl(void); 98 #else 99 # define scsi_init_sysctl() (0) 100 # define scsi_exit_sysctl() do { } while (0) 101 #endif /* CONFIG_SYSCTL */ 102 103 /* scsi_sysfs.c */ 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 *); 112 113 extern struct bus_type scsi_bus_type; 114 115 /* 116 * internal scsi timeout functions: for use by mid-layer and transport 117 * classes. 118 */ 119 120 #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); 123 124 #endif /* _SCSI_PRIV_H */ 125