path: root/Documentation/ABI
diff options
authorMartin K. Petersen <martin.petersen@oracle.com>2014-09-26 19:20:03 -0400
committerJens Axboe <axboe@fb.com>2014-09-27 09:14:51 -0600
commit3aec2f41a8baeb70aa77556a4e4dcec7d9d70b4d (patch)
tree2725a81cae556798bd3f363c4e8e5595c1ce1aaf /Documentation/ABI
parent8288f496eb1b1905c425e92eaf1abbb29119217b (diff)
block: Add a disk flag to block integrity profile
So far we have relied on the app tag size to determine whether a disk has been formatted with T10 protection information or not. However, not all target devices provide application tag storage. Add a flag to the block integrity profile that indicates whether the disk has been formatted with protection information. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Sagi Grimberg <sagig@dev.mellanox.co.il> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'Documentation/ABI')
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block
index 279da08f7541..8df003963d99 100644
--- a/Documentation/ABI/testing/sysfs-block
+++ b/Documentation/ABI/testing/sysfs-block
@@ -53,6 +53,14 @@ Description:
512 bytes of data.
+What: /sys/block/<disk>/integrity/device_is_integrity_capable
+Date: July 2014
+Contact: Martin K. Petersen <martin.petersen@oracle.com>
+ Indicates whether a storage device is capable of storing
+ integrity metadata. Set if the device is T10 PI-capable.
What: /sys/block/<disk>/integrity/write_generate
Date: June 2008
Contact: Martin K. Petersen <martin.petersen@oracle.com>

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