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authorMartin K. Petersen <martin.petersen@oracle.com>2008-06-17 20:59:57 +0400
committerJens Axboe <jens.axboe@oracle.com>2008-07-03 15:21:13 +0400
commitc1c72b59941e2f5aad4b02609d7ee7b121734b8d (patch)
treea57d51e43ecefa11d183ff9b27b661c900e46af6 /Documentation/ABI
parent7ba1ba12eeef0aa7113beb16410ef8b7c748e18b (diff)
downloadlinux-c1c72b59941e2f5aad4b02609d7ee7b121734b8d.tar.xz
block: Data integrity infrastructure documentation
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-block34
1 files changed, 34 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block
index 4bd9ea539129..44f52a4f5903 100644
--- a/Documentation/ABI/testing/sysfs-block
+++ b/Documentation/ABI/testing/sysfs-block
@@ -26,3 +26,37 @@ Description:
I/O statistics of partition <part>. The format is the
same as the above-written /sys/block/<disk>/stat
format.
+
+
+What: /sys/block/<disk>/integrity/format
+Date: June 2008
+Contact: Martin K. Petersen <martin.petersen@oracle.com>
+Description:
+ Metadata format for integrity capable block device.
+ E.g. T10-DIF-TYPE1-CRC.
+
+
+What: /sys/block/<disk>/integrity/read_verify
+Date: June 2008
+Contact: Martin K. Petersen <martin.petersen@oracle.com>
+Description:
+ Indicates whether the block layer should verify the
+ integrity of read requests serviced by devices that
+ support sending integrity metadata.
+
+
+What: /sys/block/<disk>/integrity/tag_size
+Date: June 2008
+Contact: Martin K. Petersen <martin.petersen@oracle.com>
+Description:
+ Number of bytes of integrity tag space available per
+ 512 bytes of data.
+
+
+What: /sys/block/<disk>/integrity/write_generate
+Date: June 2008
+Contact: Martin K. Petersen <martin.petersen@oracle.com>
+Description:
+ Indicates whether the block layer should automatically
+ generate checksums for write requests bound for
+ devices that support receiving integrity metadata.