mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-11 21:14:07 +08:00
e7f7655227
Requiring every ULP to have the scsi_drive as first member of the private data is rather fragile and not necessary anyway. Just use the driver hanging off the SCSI device instead. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Ming Lei <ming.lei@redhat.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20220308055200.735835-4-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _SCSI_SCSI_DRIVER_H
|
|
#define _SCSI_SCSI_DRIVER_H
|
|
|
|
#include <linux/blk_types.h>
|
|
#include <linux/device.h>
|
|
#include <scsi/scsi_cmnd.h>
|
|
|
|
struct module;
|
|
struct request;
|
|
|
|
struct scsi_driver {
|
|
struct device_driver gendrv;
|
|
|
|
void (*rescan)(struct device *);
|
|
blk_status_t (*init_command)(struct scsi_cmnd *);
|
|
void (*uninit_command)(struct scsi_cmnd *);
|
|
int (*done)(struct scsi_cmnd *);
|
|
int (*eh_action)(struct scsi_cmnd *, int);
|
|
void (*eh_reset)(struct scsi_cmnd *);
|
|
};
|
|
#define to_scsi_driver(drv) \
|
|
container_of((drv), struct scsi_driver, gendrv)
|
|
|
|
extern int scsi_register_driver(struct device_driver *);
|
|
#define scsi_unregister_driver(drv) \
|
|
driver_unregister(drv);
|
|
|
|
extern int scsi_register_interface(struct class_interface *);
|
|
#define scsi_unregister_interface(intf) \
|
|
class_interface_unregister(intf)
|
|
|
|
/* make sure not to use it with passthrough commands */
|
|
static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
|
|
{
|
|
return to_scsi_driver(cmd->device->sdev_gendev.driver);
|
|
}
|
|
|
|
#endif /* _SCSI_SCSI_DRIVER_H */
|