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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2008-07-17 04:28:34 -0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-26 15:14:55 -0400 |
| commit | e0597d70012c82e16ee152270a55d89d8bf66693 (patch) | |
| tree | 1752132ba07975a8db2bf93ddad88e1a6c06f4d2 /drivers/scsi/sd_dif.c | |
| parent | 511e44f42e3239a4df77b8e0e46d294d98a768ad (diff) | |
| download | lwn-e0597d70012c82e16ee152270a55d89d8bf66693.tar.gz lwn-e0597d70012c82e16ee152270a55d89d8bf66693.zip | |
[SCSI] sd: Identify DIF protection type and application tag ownership
If a disk is formatted with protection information (Inquiry bit
PROTECT=1) it is required to support Read Capacity(16). Force use of
the 16-bit command in this case and extract the P_TYPE field which
indicates whether the disk is formatted using DIF Type 1, 2 or 3.
The ATO (App Tag Own) bit in the Control Mode Page indicates whether
the storage device or the initiator own the contents of the
DIF application tag.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/sd_dif.c')
0 files changed, 0 insertions, 0 deletions