[RFC 7/8] nvmet/admin-cmd: Hookup T10-PI to ID_NS.ms + ID_NS.dps feature bits

[Nicholas A. Bellinger]

On Thu, 2016-06-09 at 15:52 +0200, Christoph Hellwig wrote:
> FYI: NVMf requires metadata to be interleaved in the data, and you
> need to indicate that in the Identify data.  Note that this is only
> a requirement for the on the wire format and for the way the Namespaces are
> exposed at the protocol level as RDMA HCA and FB HBAs should still
> be able to handle our separate SGL.

Btw, nvmet needs something similar for controller creation, like how
target_port_op works with target_alloc_session(), so hw capabilities can
signal to host controllers when PI should be enabled for a namespace,
but actual namespace backends don't support it.

Eg: TARGET_PROT_DOUT_STRIP and TARGET_PROT_DIN_INSERT ops