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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2008-06-25 17:22:42 +0200 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-07-12 15:22:32 +0200 |
| commit | f11f594edba7f689af9792a5673ed59d660ad371 (patch) | |
| tree | 4fae88f3893ce57f2f85280d16330fc61a943d44 /lib/Kconfig | |
| parent | [SCSI] sd: Move scsi_disk() accessor function to sd.h (diff) | |
| download | linux-f11f594edba7f689af9792a5673ed59d660ad371.tar.xz linux-f11f594edba7f689af9792a5673ed59d660ad371.zip | |
[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/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index 8cc8e8722a3f..c7ad7a5b3535 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 |