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authorMartin K. Petersen <martin.petersen@oracle.com>2008-07-17 04:28:35 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-26 15:14:56 -0400
commitaf55ff675a8461da6a632320710b050af4366e0c (patch)
tree2d85ec327340f11f79cedb7d962d232c31819a8c /drivers/scsi/Kconfig
parente0597d70012c82e16ee152270a55d89d8bf66693 (diff)
[SCSI] sd: Support for SCSI disk (SBC) Data Integrity Field
Support for controllers and disks that implement DIF protection information: - During command preparation the RDPROTECT/WRPROTECT must be set correctly if the target has DIF enabled. - READ(6) and WRITE(6) are not supported when DIF is on. - The controller must be told how to handle the I/O via the protection operation field in scsi_cmnd. - Refactor the I/O completion code that extracts failed LBA from the returned sense data and handle DIF failures correctly. - sd_dif.c implements the functions required to prepare and complete requests with protection information attached. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/Kconfig')
-rw-r--r--drivers/scsi/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 26be540d1dd3..c7f06298bd3c 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -63,6 +63,7 @@ comment "SCSI support type (disk, tape, CD-ROM)"
config BLK_DEV_SD
tristate "SCSI disk support"
depends on SCSI
+ select CRC_T10DIF
---help---
If you want to use SCSI hard disks, Fibre Channel disks,
Serial ATA (SATA) or Parallel ATA (PATA) hard disks,