Partitions and end-to-end protection

[Keith Busch]

On Tue, 14 Jul 2015, Martin K. Petersen wrote:
>>>>>> "Keith" == Keith Busch <keith.busch at intel.com> writes:
>
> Keith> NVMe doesn't provide a way to disable transferring metadata
> Keith> per-io.
>
> If you do a READ with PRACT=1 the PI should get stripped at the
> controller. That was the intent, anyway.

PRACT=1 strips/generates PI only for a subset of valid NVMe meta-data
formats, so we need something for the others.