Re: [virtio-comment] RE: [PATCH v19] virtio-net: support inner header hash

["Michael S. Tsirkin" <mst@redhat.com>]

On Thu, Jun 29, 2023 at 01:56:34AM +0000, Parav Pandit wrote:
> 
> 
> > From: Michael S. Tsirkin <mst@redhat.com>
> > Sent: Wednesday, June 28, 2023 3:45 PM
> > > > Maybe I get it. You want to use the new features as a carrot to
> > > > force drivers to implement DMA? You suspect they will ignore the
> > > > spec requirement just because things seem to work?
> > > >
> > > Right because it is not a must normative.
> > 
> > Well SHOULD also does not mean "ok to just ignore".
> > 
> > 	This word, or the adjective "RECOMMENDED", mean that there
> > 	   may exist valid reasons in particular circumstances to ignore a
> > 	   particular item, but the full implications must be understood and
> > 	   carefully weighed before choosing a different course.
> >
> RECOMMENDED and SHOULD forces the device to support MMIO, which is not good.

You said this already. Let's not repeat ourselves please.

It's a single word. We need to work on a patch, we can argue about
small detail once it's posted. It's not in your list of plans so
I am guessing we need someone on Red Hat side to work on this?

-- 
MST


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