Add routines to support T10 DIF tag.
Signed-off-by: NQuinn Tran <quinn.tran@cavium.com>
Signed-off-by: NAnil Gurumurthy <anil.gurumurthy@cavium.com>
Signed-off-by: NHimanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>