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sd: add support for TCG OPAL self encrypting disks

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Just wire up the generic TCG OPAL infrastructure to the SCSI disk driver
and the Security In/Out commands.

Note that I don't know of any actual SCSI disks that do support TCG OPAL,
but this is required to support ATA disks through libata.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Christoph Hellwig
2017-06-19 14:26:46 +02:00
committed by Tejun Heo
parent c8ccf812c3
commit d80210f25f
4 changed files with 58 additions and 1 deletions
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2
drivers/scsi/sd.h
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@@ -71,6 +71,7 @@ struct scsi_disk {
struct scsi_device *device;
struct device dev;
struct gendisk *disk;
struct opal_dev *opal_dev;
#ifdef CONFIG_BLK_DEV_ZONED
unsigned int nr_zones;
unsigned int zone_blocks;
@@ -114,6 +115,7 @@ struct scsi_disk {
unsigned rc_basis: 2;
unsigned zoned: 2;
unsigned urswrz : 1;
unsigned security : 1;
unsigned ignore_medium_access_errors : 1;
};
#define to_scsi_disk(obj) container_of(obj,struct scsi_disk,dev)