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192 lines
6.4 KiB
192 lines
6.4 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _SCSI_PRIV_H |
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#define _SCSI_PRIV_H |
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#include <linux/device.h> |
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#include <linux/async.h> |
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#include <scsi/scsi_device.h> |
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struct request_queue; |
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struct request; |
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struct scsi_cmnd; |
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struct scsi_device; |
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struct scsi_target; |
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struct scsi_host_template; |
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struct Scsi_Host; |
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struct scsi_nl_hdr; |
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#define SCSI_CMD_RETRIES_NO_LIMIT -1 |
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/* |
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* Scsi Error Handler Flags |
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*/ |
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#define SCSI_EH_ABORT_SCHEDULED 0x0002 /* Abort has been scheduled */ |
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#define SCSI_SENSE_VALID(scmd) \ |
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(((scmd)->sense_buffer[0] & 0x70) == 0x70) |
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/* hosts.c */ |
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extern int scsi_init_hosts(void); |
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extern void scsi_exit_hosts(void); |
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/* scsi.c */ |
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int scsi_init_sense_cache(struct Scsi_Host *shost); |
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void scsi_init_command(struct scsi_device *dev, struct scsi_cmnd *cmd); |
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#ifdef CONFIG_SCSI_LOGGING |
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void scsi_log_send(struct scsi_cmnd *cmd); |
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void scsi_log_completion(struct scsi_cmnd *cmd, int disposition); |
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#else |
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static inline void scsi_log_send(struct scsi_cmnd *cmd) |
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{ }; |
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static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition) |
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{ }; |
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#endif |
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/* scsi_devinfo.c */ |
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/* list of keys for the lists */ |
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enum scsi_devinfo_key { |
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SCSI_DEVINFO_GLOBAL = 0, |
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SCSI_DEVINFO_SPI, |
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}; |
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extern blist_flags_t scsi_get_device_flags(struct scsi_device *sdev, |
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const unsigned char *vendor, |
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const unsigned char *model); |
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extern blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev, |
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const unsigned char *vendor, |
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const unsigned char *model, |
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enum scsi_devinfo_key key); |
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extern int scsi_dev_info_list_add_keyed(int compatible, char *vendor, |
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char *model, char *strflags, |
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blist_flags_t flags, |
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enum scsi_devinfo_key key); |
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extern int scsi_dev_info_list_del_keyed(char *vendor, char *model, |
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enum scsi_devinfo_key key); |
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extern int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name); |
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extern int scsi_dev_info_remove_list(enum scsi_devinfo_key key); |
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extern int __init scsi_init_devinfo(void); |
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extern void scsi_exit_devinfo(void); |
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/* scsi_error.c */ |
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extern void scmd_eh_abort_handler(struct work_struct *work); |
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extern enum blk_eh_timer_return scsi_times_out(struct request *req); |
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extern int scsi_error_handler(void *host); |
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extern int scsi_decide_disposition(struct scsi_cmnd *cmd); |
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extern void scsi_eh_wakeup(struct Scsi_Host *shost); |
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extern void scsi_eh_scmd_add(struct scsi_cmnd *); |
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void scsi_eh_ready_devs(struct Scsi_Host *shost, |
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struct list_head *work_q, |
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struct list_head *done_q); |
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int scsi_eh_get_sense(struct list_head *work_q, |
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struct list_head *done_q); |
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int scsi_noretry_cmd(struct scsi_cmnd *scmd); |
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/* scsi_lib.c */ |
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extern int scsi_maybe_unblock_host(struct scsi_device *sdev); |
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extern void scsi_device_unbusy(struct scsi_device *sdev, struct scsi_cmnd *cmd); |
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extern void scsi_queue_insert(struct scsi_cmnd *cmd, int reason); |
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extern void scsi_io_completion(struct scsi_cmnd *, unsigned int); |
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extern void scsi_run_host_queues(struct Scsi_Host *shost); |
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extern void scsi_requeue_run_queue(struct work_struct *work); |
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extern struct request_queue *scsi_mq_alloc_queue(struct scsi_device *sdev); |
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extern void scsi_start_queue(struct scsi_device *sdev); |
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extern int scsi_mq_setup_tags(struct Scsi_Host *shost); |
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extern void scsi_mq_destroy_tags(struct Scsi_Host *shost); |
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extern void scsi_exit_queue(void); |
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extern void scsi_evt_thread(struct work_struct *work); |
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struct request_queue; |
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struct request; |
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/* scsi_proc.c */ |
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#ifdef CONFIG_SCSI_PROC_FS |
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extern void scsi_proc_hostdir_add(struct scsi_host_template *); |
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extern void scsi_proc_hostdir_rm(struct scsi_host_template *); |
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extern void scsi_proc_host_add(struct Scsi_Host *); |
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extern void scsi_proc_host_rm(struct Scsi_Host *); |
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extern int scsi_init_procfs(void); |
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extern void scsi_exit_procfs(void); |
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#else |
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# define scsi_proc_hostdir_add(sht) do { } while (0) |
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# define scsi_proc_hostdir_rm(sht) do { } while (0) |
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# define scsi_proc_host_add(shost) do { } while (0) |
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# define scsi_proc_host_rm(shost) do { } while (0) |
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# define scsi_init_procfs() (0) |
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# define scsi_exit_procfs() do { } while (0) |
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#endif /* CONFIG_PROC_FS */ |
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/* scsi_scan.c */ |
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extern char scsi_scan_type[]; |
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extern int scsi_complete_async_scans(void); |
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extern int scsi_scan_host_selected(struct Scsi_Host *, unsigned int, |
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unsigned int, u64, enum scsi_scan_mode); |
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extern void scsi_forget_host(struct Scsi_Host *); |
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extern void scsi_rescan_device(struct device *); |
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/* scsi_sysctl.c */ |
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#ifdef CONFIG_SYSCTL |
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extern int scsi_init_sysctl(void); |
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extern void scsi_exit_sysctl(void); |
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#else |
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# define scsi_init_sysctl() (0) |
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# define scsi_exit_sysctl() do { } while (0) |
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#endif /* CONFIG_SYSCTL */ |
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/* scsi_sysfs.c */ |
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extern int scsi_sysfs_add_sdev(struct scsi_device *); |
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extern int scsi_sysfs_add_host(struct Scsi_Host *); |
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extern int scsi_sysfs_register(void); |
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extern void scsi_sysfs_unregister(void); |
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extern void scsi_sysfs_device_initialize(struct scsi_device *); |
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extern int scsi_sysfs_target_initialize(struct scsi_device *); |
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extern struct scsi_transport_template blank_transport_template; |
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extern void __scsi_remove_device(struct scsi_device *); |
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extern struct bus_type scsi_bus_type; |
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extern const struct attribute_group *scsi_sysfs_shost_attr_groups[]; |
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/* scsi_netlink.c */ |
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#ifdef CONFIG_SCSI_NETLINK |
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extern void scsi_netlink_init(void); |
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extern void scsi_netlink_exit(void); |
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extern struct sock *scsi_nl_sock; |
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#else |
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static inline void scsi_netlink_init(void) {} |
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static inline void scsi_netlink_exit(void) {} |
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#endif |
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/* scsi_pm.c */ |
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#ifdef CONFIG_PM |
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extern const struct dev_pm_ops scsi_bus_pm_ops; |
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extern void scsi_autopm_get_target(struct scsi_target *); |
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extern void scsi_autopm_put_target(struct scsi_target *); |
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extern int scsi_autopm_get_host(struct Scsi_Host *); |
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extern void scsi_autopm_put_host(struct Scsi_Host *); |
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#else |
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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 */ |
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extern struct async_domain scsi_sd_pm_domain; |
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/* scsi_dh.c */ |
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#ifdef CONFIG_SCSI_DH |
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void scsi_dh_add_device(struct scsi_device *sdev); |
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void scsi_dh_release_device(struct scsi_device *sdev); |
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#else |
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static inline void scsi_dh_add_device(struct scsi_device *sdev) { } |
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static inline void scsi_dh_release_device(struct scsi_device *sdev) { } |
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#endif |
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/* |
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* internal scsi timeout functions: for use by mid-layer and transport |
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* classes. |
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*/ |
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#define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */ |
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#endif /* _SCSI_PRIV_H */
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