Another wrinkle is that SCSI does not have a way to directly specify
which tags to check. You can check guard only, check app+ref only, or
all three. But you can't just check the ref tag if that's what you want
to do.
Hi Martin,
When the drive is formatted with type1 integrity and dix is supported,
the block layer would generate/verify the guard and reftag. For scsi,
apptag would also need to be generated/verified as reftag-check can't
be specified alone. But I am not not able to find (in SCSI code) where
exactly:
1. this apptag is being generated
2. and getting added to the PI buffer and scsi command.
Can you please point to where/how it is handled.
Thank you,
Anuj Gupta
