a1b73fc194
Instead of letting the ULD play games with the prep_fn move back to the model of a central prep_fn with a callback to the ULD. This already cleans up and shortens the code by itself, and will be required to properly support blk-mq in the SCSI midlayer. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Nicholas Bellinger <nab@linux-iscsi.org> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Reviewed-by: Hannes Reinecke <hare@suse.de>
35 lines
952 B
C
35 lines
952 B
C
#ifndef _SCSI_SCSI_DRIVER_H
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#define _SCSI_SCSI_DRIVER_H
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#include <linux/device.h>
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struct module;
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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_driver {
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struct module *owner;
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struct device_driver gendrv;
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void (*rescan)(struct device *);
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int (*init_command)(struct scsi_cmnd *);
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void (*uninit_command)(struct scsi_cmnd *);
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int (*done)(struct scsi_cmnd *);
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int (*eh_action)(struct scsi_cmnd *, int);
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};
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#define to_scsi_driver(drv) \
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container_of((drv), struct scsi_driver, gendrv)
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extern int scsi_register_driver(struct device_driver *);
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#define scsi_unregister_driver(drv) \
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driver_unregister(drv);
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extern int scsi_register_interface(struct class_interface *);
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#define scsi_unregister_interface(intf) \
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class_interface_unregister(intf)
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int scsi_setup_blk_pc_cmnd(struct scsi_device *sdev, struct request *req);
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int scsi_setup_fs_cmnd(struct scsi_device *sdev, struct request *req);
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#endif /* _SCSI_SCSI_DRIVER_H */
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