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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 */
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#ifndef _SCSI_SCSI_DRIVER_H
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#define _SCSI_SCSI_DRIVER_H
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#include <linux/blk_types.h>
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#include <linux/device.h>
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#include <scsi/scsi_cmnd.h>
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struct module;
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struct request;
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struct scsi_driver {
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struct device_driver gendrv;
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void (*rescan)(struct device *);
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blk_status_t (*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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void (*eh_reset)(struct scsi_cmnd *);
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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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/* make sure not to use it with passthrough commands */
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static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd)
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{
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return to_scsi_driver(cmd->device->sdev_gendev.driver);
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}
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#endif /* _SCSI_SCSI_DRIVER_H */
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