nvme lightnvm comments

[Matias Bjørling]

On 11/23/2015 08:53 PM, Christoph Hellwig wrote:
> On Mon, Nov 23, 2015 at 04:03:20PM +0000, Keith Busch wrote:
>> 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.
>
> I saw the vendor + device, but even with that I'd rather see a reserved
> value in the command set in addition.  Claiming that we're NVM if we're
> not is a bad idea.
>

Well, I would too. However, we can't add a new mode without breaking 
compatibility at some other point in time. We're working on the 
standardization process.