Release 4.10 drivers/scsi/scsi_priv.h
#ifndef _SCSI_PRIV_H
#define _SCSI_PRIV_H
#include <linux/device.h>
#include <linux/async.h>
#include <scsi/scsi_device.h>
struct request_queue;
struct request;
struct scsi_cmnd;
struct scsi_device;
struct scsi_target;
struct scsi_host_template;
struct Scsi_Host;
struct scsi_nl_hdr;
/*
* Scsi Error Handler Flags
*/
#define SCSI_EH_CANCEL_CMD 0x0001
/* Cancel this cmd */
#define SCSI_EH_ABORT_SCHEDULED 0x0002
/* Abort has been scheduled */
#define SCSI_SENSE_VALID(scmd) \
(((scmd)->sense_buffer[0] & 0x70) == 0x70)
/* hosts.c */
extern int scsi_init_hosts(void);
extern void scsi_exit_hosts(void);
/* scsi.c */
extern bool scsi_use_blk_mq;
extern int scsi_setup_command_freelist(struct Scsi_Host *shost);
extern void scsi_destroy_command_freelist(struct Scsi_Host *shost);
#ifdef CONFIG_SCSI_LOGGING
void scsi_log_send(struct scsi_cmnd *cmd);
void scsi_log_completion(struct scsi_cmnd *cmd, int disposition);
#else
static inline void scsi_log_send(struct scsi_cmnd *cmd)
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;
static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
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;
#endif
/* scsi_devinfo.c */
/* list of keys for the lists */
enum {
SCSI_DEVINFO_GLOBAL = 0,
SCSI_DEVINFO_SPI,
};
extern int scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model);
extern int scsi_get_device_flags_keyed(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model, int key);
extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor,
char *model, char *strflags,
int flags, int key);
extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key);
extern int scsi_dev_info_add_list(int key, const char *name);
extern int scsi_dev_info_remove_list(int key);
extern int __init scsi_init_devinfo(void);
extern void scsi_exit_devinfo(void);
/* scsi_error.c */
extern void scmd_eh_abort_handler(struct work_struct *work);
extern enum blk_eh_timer_return scsi_times_out(struct request *req);
extern int scsi_error_handler(void *host);
extern int scsi_decide_disposition(struct scsi_cmnd *cmd);
extern void scsi_eh_wakeup(struct Scsi_Host *shost);
extern int scsi_eh_scmd_add(struct scsi_cmnd *, int);
void scsi_eh_ready_devs(struct Scsi_Host *shost,
struct list_head *work_q,
struct list_head *done_q);
int scsi_eh_get_sense(struct list_head *work_q,
struct list_head *done_q);
int scsi_noretry_cmd(struct scsi_cmnd *scmd);
/* scsi_lib.c */
extern int scsi_maybe_unblock_host(struct scsi_device *sdev);
extern void scsi_device_unbusy(struct scsi_device *sdev);
extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason);
extern void scsi_io_completion(struct scsi_cmnd *, unsigned int);
extern void scsi_run_host_queues(struct Scsi_Host *shost);
extern void scsi_requeue_run_queue(struct work_struct *work);
extern struct request_queue *scsi_alloc_queue(struct scsi_device *sdev);
extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev);
extern int scsi_mq_setup_tags(struct Scsi_Host *shost);
extern void scsi_mq_destroy_tags(struct Scsi_Host *shost);
extern int scsi_init_queue(void);
extern void scsi_exit_queue(void);
extern void scsi_evt_thread(struct work_struct *work);
struct request_queue;
struct request;
extern struct kmem_cache *scsi_sdb_cache;
/* scsi_proc.c */
#ifdef CONFIG_SCSI_PROC_FS
extern void scsi_proc_hostdir_add(struct scsi_host_template *);
extern void scsi_proc_hostdir_rm(struct scsi_host_template *);
extern void scsi_proc_host_add(struct Scsi_Host *);
extern void scsi_proc_host_rm(struct Scsi_Host *);
extern int scsi_init_procfs(void);
extern void scsi_exit_procfs(void);
#else
# define scsi_proc_hostdir_add(sht) do { } while (0)
# define scsi_proc_hostdir_rm(sht) do { } while (0)
# define scsi_proc_host_add(shost) do { } while (0)
# define scsi_proc_host_rm(shost) do { } while (0)
# define scsi_init_procfs() (0)
# define scsi_exit_procfs() do { } while (0)
#endif /* CONFIG_PROC_FS */
/* scsi_scan.c */
extern char scsi_scan_type[];
extern int scsi_complete_async_scans(void);
extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int,
unsigned int, u64, enum scsi_scan_mode);
extern void scsi_forget_host(struct Scsi_Host *);
extern void scsi_rescan_device(struct device *);
/* scsi_sysctl.c */
#ifdef CONFIG_SYSCTL
extern int scsi_init_sysctl(void);
extern void scsi_exit_sysctl(void);
#else
# define scsi_init_sysctl() (0)
# define scsi_exit_sysctl() do { } while (0)
#endif /* CONFIG_SYSCTL */
/* scsi_sysfs.c */
extern int scsi_sysfs_add_sdev(struct scsi_device *);
extern int scsi_sysfs_add_host(struct Scsi_Host *);
extern int scsi_sysfs_register(void);
extern void scsi_sysfs_unregister(void);
extern void scsi_sysfs_device_initialize(struct scsi_device *);
extern int scsi_sysfs_target_initialize(struct scsi_device *);
extern struct scsi_transport_template blank_transport_template;
extern void __scsi_remove_device(struct scsi_device *);
extern struct bus_type scsi_bus_type;
extern const struct attribute_group *scsi_sysfs_shost_attr_groups[];
/* scsi_netlink.c */
#ifdef CONFIG_SCSI_NETLINK
extern void scsi_netlink_init(void);
extern void scsi_netlink_exit(void);
extern struct sock *scsi_nl_sock;
#else
static inline void scsi_netlink_init(void) {}
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static inline void scsi_netlink_exit(void) {}
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#endif
/* scsi_pm.c */
#ifdef CONFIG_PM
extern const struct dev_pm_ops scsi_bus_pm_ops;
extern void scsi_autopm_get_target(struct scsi_target *);
extern void scsi_autopm_put_target(struct scsi_target *);
extern int scsi_autopm_get_host(struct Scsi_Host *);
extern void scsi_autopm_put_host(struct Scsi_Host *);
#else
static inline void scsi_autopm_get_target(struct scsi_target *t) {}
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static inline void scsi_autopm_put_target(struct scsi_target *t) {}
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static inline int scsi_autopm_get_host(struct Scsi_Host *h) { return 0; }
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static inline void scsi_autopm_put_host(struct Scsi_Host *h) {}
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#endif /* CONFIG_PM */
extern struct async_domain scsi_sd_pm_domain;
extern struct async_domain scsi_sd_probe_domain;
/* scsi_dh.c */
#ifdef CONFIG_SCSI_DH
int scsi_dh_add_device(struct scsi_device *sdev);
void scsi_dh_release_device(struct scsi_device *sdev);
#else
static inline int scsi_dh_add_device(struct scsi_device *sdev) { return 0; }
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static inline void scsi_dh_release_device(struct scsi_device *sdev) { }
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#endif
static inline void scsi_dh_remove_device(struct scsi_device *sdev) { }
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/*
* internal scsi timeout functions: for use by mid-layer and transport
* classes.
*/
#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600
/* units in seconds */
extern int scsi_internal_device_block(struct scsi_device *sdev);
extern int scsi_internal_device_unblock(struct scsi_device *sdev,
enum scsi_device_state new_state);
#endif /* _SCSI_PRIV_H */
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