Re: [RFC PATCH 3/3] nvme: add the "debug" host driver

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On Thu, Feb 03, 2022 at 05:15:34PM +0100, Christoph Hellwig wrote:
> On Thu, Feb 03, 2022 at 08:06:33AM -0800, Luis Chamberlain wrote:
> > On Wed, Feb 02, 2022 at 06:01:13AM +0000, Adam Manzanares wrote:
> > > BTW I think having the target code be able to implement simple copy without 
> > > moving data over the fabric would be a great way of showing off the command.
> > 
> > Do you mean this should be implemented instead as a fabrics backend
> > instead because fabrics already instantiates and creates a virtual
> > nvme device? And so this would mean less code?
> 
> It would be a lot less code.  In fact I don't think we need any new code
> at all.  Just using nvme-loop on top of null_blk or brd should be all
> that is needed.

Mikulas,

That begs the question why add this instead of using null_blk with
nvme-loop?

  Luis



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