scsi_driver.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _SCSI_SCSI_DRIVER_H
 3#define _SCSI_SCSI_DRIVER_H
 4
 5#include <linux/blk_types.h>
 6#include <linux/device.h>
 7#include <scsi/scsi_cmnd.h>
 8
 9struct module;
10struct request;
11
12struct scsi_driver {
13	struct device_driver	gendrv;
14
15	int (*resume)(struct device *);
16	void (*rescan)(struct device *);
17	blk_status_t (*init_command)(struct scsi_cmnd *);
18	void (*uninit_command)(struct scsi_cmnd *);
19	int (*done)(struct scsi_cmnd *);
20	int (*eh_action)(struct scsi_cmnd *, int);
21	void (*eh_reset)(struct scsi_cmnd *);
22};
23#define to_scsi_driver(drv) \
24	container_of((drv), struct scsi_driver, gendrv)
25
26#define scsi_register_driver(drv) \
27	__scsi_register_driver(drv, THIS_MODULE)
28int __scsi_register_driver(struct device_driver *, struct module *);
29#define scsi_unregister_driver(drv) \
30	driver_unregister(drv);
31
32extern int scsi_register_interface(struct class_interface *);
33#define scsi_unregister_interface(intf) \
34	class_interface_unregister(intf)
35
36/* make sure not to use it with passthrough commands */
37static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
38{
39	return to_scsi_driver(cmd->device->sdev_gendev.driver);
40}
41
42#endif /* _SCSI_SCSI_DRIVER_H */