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 struct scsi_nl_hdr; 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 #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_scan.c */ 42 int scsi_complete_async_scans(void); 43 44 /* scsi_devinfo.c */ 45 extern int scsi_get_device_flags(struct scsi_device *sdev, 46 const unsigned char *vendor, 47 const unsigned char *model); 48 extern int __init scsi_init_devinfo(void); 49 extern void scsi_exit_devinfo(void); 50 51 /* scsi_error.c */ 52 extern void scsi_add_timer(struct scsi_cmnd *, int, 53 void (*)(struct scsi_cmnd *)); 54 extern int scsi_delete_timer(struct scsi_cmnd *); 55 extern void scsi_times_out(struct scsi_cmnd *cmd); 56 extern int scsi_error_handler(void *host); 57 extern int scsi_decide_disposition(struct scsi_cmnd *cmd); 58 extern void scsi_eh_wakeup(struct Scsi_Host *shost); 59 extern int scsi_eh_scmd_add(struct scsi_cmnd *, int); 60 void scsi_eh_ready_devs(struct Scsi_Host *shost, 61 struct list_head *work_q, 62 struct list_head *done_q); 63 int scsi_eh_get_sense(struct list_head *work_q, 64 struct list_head *done_q); 65 66 /* scsi_lib.c */ 67 extern int scsi_maybe_unblock_host(struct scsi_device *sdev); 68 extern void scsi_device_unbusy(struct scsi_device *sdev); 69 extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason); 70 extern void scsi_next_command(struct scsi_cmnd *cmd); 71 extern void scsi_run_host_queues(struct Scsi_Host *shost); 72 extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev); 73 extern void scsi_free_queue(struct request_queue *q); 74 extern int scsi_init_queue(void); 75 extern void scsi_exit_queue(void); 76 77 /* scsi_proc.c */ 78 #ifdef CONFIG_SCSI_PROC_FS 79 extern void scsi_proc_hostdir_add(struct scsi_host_template *); 80 extern void scsi_proc_hostdir_rm(struct scsi_host_template *); 81 extern void scsi_proc_host_add(struct Scsi_Host *); 82 extern void scsi_proc_host_rm(struct Scsi_Host *); 83 extern int scsi_init_procfs(void); 84 extern void scsi_exit_procfs(void); 85 #else 86 # define scsi_proc_hostdir_add(sht) do { } while (0) 87 # define scsi_proc_hostdir_rm(sht) do { } while (0) 88 # define scsi_proc_host_add(shost) do { } while (0) 89 # define scsi_proc_host_rm(shost) do { } while (0) 90 # define scsi_init_procfs() (0) 91 # define scsi_exit_procfs() do { } while (0) 92 #endif /* CONFIG_PROC_FS */ 93 94 /* scsi_scan.c */ 95 extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, 96 unsigned int, unsigned int, int); 97 extern void scsi_forget_host(struct Scsi_Host *); 98 extern void scsi_rescan_device(struct device *); 99 100 /* scsi_sysctl.c */ 101 #ifdef CONFIG_SYSCTL 102 extern int scsi_init_sysctl(void); 103 extern void scsi_exit_sysctl(void); 104 #else 105 # define scsi_init_sysctl() (0) 106 # define scsi_exit_sysctl() do { } while (0) 107 #endif /* CONFIG_SYSCTL */ 108 109 /* scsi_sysfs.c */ 110 extern int scsi_sysfs_add_sdev(struct scsi_device *); 111 extern int scsi_sysfs_add_host(struct Scsi_Host *); 112 extern int scsi_sysfs_register(void); 113 extern void scsi_sysfs_unregister(void); 114 extern void scsi_sysfs_device_initialize(struct scsi_device *); 115 extern int scsi_sysfs_target_initialize(struct scsi_device *); 116 extern struct scsi_transport_template blank_transport_template; 117 extern void __scsi_remove_device(struct scsi_device *); 118 119 extern struct bus_type scsi_bus_type; 120 121 /* scsi_netlink.c */ 122 #ifdef CONFIG_SCSI_NETLINK 123 extern void scsi_netlink_init(void); 124 extern void scsi_netlink_exit(void); 125 extern struct sock *scsi_nl_sock; 126 #else 127 static inline void scsi_netlink_init(void) {} 128 static inline void scsi_netlink_exit(void) {} 129 #endif 130 131 /* 132 * internal scsi timeout functions: for use by mid-layer and transport 133 * classes. 134 */ 135 136 #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */ 137 extern int scsi_internal_device_block(struct scsi_device *sdev); 138 extern int scsi_internal_device_unblock(struct scsi_device *sdev); 139 140 #endif /* _SCSI_PRIV_H */ 141