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authorMartin K. Petersen <martin.petersen@oracle.com>2008-06-25 11:22:42 -0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-12 08:22:32 -0500
commitf11f594edba7f689af9792a5673ed59d660ad371 (patch)
tree4fae88f3893ce57f2f85280d16330fc61a943d44 /lib/Kconfig
parent5b635da11e3a6387172abd651d26d8ef54b1fbc7 (diff)
downloadlinux-f11f594edba7f689af9792a5673ed59d660ad371.tar.gz
[SCSI] lib: Add support for the T10 (SCSI) Data Integrity Field CRC
The SCSI Block Protocol uses this 16-bit CRC to verify the integrity of each data sector. crc_t10dif() is used by sd_dif.c when performing I/O to or from disks formatted with protection information. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'lib/Kconfig')
-rw-r--r--lib/Kconfig7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index 8cc8e8722a3..c7ad7a5b353 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -29,6 +29,13 @@ config CRC16
the kernel tree does. Such modules that use library CRC16
functions require M here.
+config CRC_T10DIF
+ tristate "CRC calculation for the T10 Data Integrity Field"
+ help
+ This option is only needed if a module that's not in the
+ kernel tree needs to calculate CRC checks for use with the
+ SCSI data integrity subsystem.
+
config CRC_ITU_T
tristate "CRC ITU-T V.41 functions"
help