1#ifndef _SCSI_PRIV_H 2#define _SCSI_PRIV_H 3 4#include <linux/device.h> 5 6struct request_queue; 7struct request; 8struct scsi_cmnd; 9struct scsi_device; 10struct scsi_target; 11struct scsi_host_template; 12struct Scsi_Host; 13struct 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 */ 25extern int scsi_init_hosts(void); 26extern void scsi_exit_hosts(void); 27 28/* scsi.c */ 29extern int scsi_dispatch_cmd(struct scsi_cmnd *cmd); 30extern int scsi_setup_command_freelist(struct Scsi_Host *shost); 31extern void scsi_destroy_command_freelist(struct Scsi_Host *shost); 32#ifdef CONFIG_SCSI_LOGGING 33void scsi_log_send(struct scsi_cmnd *cmd); 34void scsi_log_completion(struct scsi_cmnd *cmd, int disposition); 35#else 36static inline void scsi_log_send(struct scsi_cmnd *cmd) 37 { }; 38static 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 */ 45enum { 46 SCSI_DEVINFO_GLOBAL = 0, 47 SCSI_DEVINFO_SPI, 48}; 49 50extern int scsi_get_device_flags(struct scsi_device *sdev, 51 const unsigned char *vendor, 52 const unsigned char *model); 53extern int scsi_get_device_flags_keyed(struct scsi_device *sdev, 54 const unsigned char *vendor, 55 const unsigned char *model, int key); 56extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor, 57 char *model, char *strflags, 58 int flags, int key); 59extern int scsi_dev_info_add_list(int key, const char *name); 60extern int scsi_dev_info_remove_list(int key); 61 62extern int __init scsi_init_devinfo(void); 63extern void scsi_exit_devinfo(void); 64 65/* scsi_error.c */ 66extern enum blk_eh_timer_return scsi_times_out(struct request *req); 67extern int scsi_error_handler(void *host); 68extern int scsi_decide_disposition(struct scsi_cmnd *cmd); 69extern void scsi_eh_wakeup(struct Scsi_Host *shost); 70extern int scsi_eh_scmd_add(struct scsi_cmnd *, int); 71void scsi_eh_ready_devs(struct Scsi_Host *shost, 72 struct list_head *work_q, 73 struct list_head *done_q); 74int scsi_eh_get_sense(struct list_head *work_q, 75 struct list_head *done_q); 76int scsi_noretry_cmd(struct scsi_cmnd *scmd); 77 78/* scsi_lib.c */ 79extern int scsi_maybe_unblock_host(struct scsi_device *sdev); 80extern void scsi_device_unbusy(struct scsi_device *sdev); 81extern int scsi_queue_insert(struct scsi_cmnd *cmd, int reason); 82extern void scsi_next_command(struct scsi_cmnd *cmd); 83extern void scsi_io_completion(struct scsi_cmnd *, unsigned int); 84extern void scsi_run_host_queues(struct Scsi_Host *shost); 85extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev); 86extern void scsi_free_queue(struct request_queue *q); 87extern int scsi_init_queue(void); 88extern void scsi_exit_queue(void); 89struct request_queue; 90struct request; 91extern struct kmem_cache *scsi_sdb_cache; 92 93/* scsi_proc.c */ 94#ifdef CONFIG_SCSI_PROC_FS 95extern void scsi_proc_hostdir_add(struct scsi_host_template *); 96extern void scsi_proc_hostdir_rm(struct scsi_host_template *); 97extern void scsi_proc_host_add(struct Scsi_Host *); 98extern void scsi_proc_host_rm(struct Scsi_Host *); 99extern int scsi_init_procfs(void); 100extern 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 */ 111extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, 112 unsigned int, unsigned int, int); 113extern void scsi_forget_host(struct Scsi_Host *); 114extern void scsi_rescan_device(struct device *); 115 116/* scsi_sysctl.c */ 117#ifdef CONFIG_SYSCTL 118extern int scsi_init_sysctl(void); 119extern void scsi_exit_sysctl(void); 120#else 121# define scsi_init_sysctl() (0) 122# define scsi_exit_sysctl() do { } while (0) 123#endif /* CONFIG_SYSCTL */ 124 125/* scsi_sysfs.c */ 126extern int scsi_sysfs_add_sdev(struct scsi_device *); 127extern int scsi_sysfs_add_host(struct Scsi_Host *); 128extern int scsi_sysfs_register(void); 129extern void scsi_sysfs_unregister(void); 130extern void scsi_sysfs_device_initialize(struct scsi_device *); 131extern int scsi_sysfs_target_initialize(struct scsi_device *); 132extern struct scsi_transport_template blank_transport_template; 133extern void __scsi_remove_device(struct scsi_device *); 134 135extern struct bus_type scsi_bus_type; 136extern const struct attribute_group *scsi_sysfs_shost_attr_groups[]; 137 138/* scsi_netlink.c */ 139#ifdef CONFIG_SCSI_NETLINK 140extern void scsi_netlink_init(void); 141extern void scsi_netlink_exit(void); 142extern struct sock *scsi_nl_sock; 143#else 144static inline void scsi_netlink_init(void) {} 145static inline void scsi_netlink_exit(void) {} 146#endif 147 148/* scsi_pm.c */ 149#ifdef CONFIG_PM_OPS 150extern const struct dev_pm_ops scsi_bus_pm_ops; 151#endif 152#ifdef CONFIG_PM_RUNTIME 153extern void scsi_autopm_get_target(struct scsi_target *); 154extern void scsi_autopm_put_target(struct scsi_target *); 155extern int scsi_autopm_get_host(struct Scsi_Host *); 156extern void scsi_autopm_put_host(struct Scsi_Host *); 157#else 158static inline void scsi_autopm_get_target(struct scsi_target *t) {} 159static inline void scsi_autopm_put_target(struct scsi_target *t) {} 160static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; } 161static inline void scsi_autopm_put_host(struct Scsi_Host *h) {} 162#endif /* CONFIG_PM_RUNTIME */ 163 164/* 165 * internal scsi timeout functions: for use by mid-layer and transport 166 * classes. 167 */ 168 169#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */ 170extern int scsi_internal_device_block(struct scsi_device *sdev); 171extern int scsi_internal_device_unblock(struct scsi_device *sdev); 172 173#endif /* _SCSI_PRIV_H */ 174