nvme lightnvm comments

[Keith Busch]

On Mon, Nov 23, 2015 at 07:45:57AM -0800, Christoph Hellwig wrote:
> On Sun, Nov 22, 2015 at 07:17:39PM +0100, Matias Bj?rling wrote:
> > On 11/21/2015 12:12 PM, Christoph Hellwig wrote:
> > >Btw, another one: it seems like LightNVM devices still claim to
> > >use the NVM I/O set per CAP and CC, which seems a little odd.
> > >
> > 
> > Oh, where have you seen it? Thought I had it changed everywhere.
> 
> nvme_configure_admin_queue still hardcodes then NVM comman set when
> enabling the controller.

We also thought it'd have been cleaner to have a different command set,
but the committee hasn't taken on assigning these reserved bits for any
new purposes yet. LightNVM detection is done with the vendor + device
id at the moment.