netdev - Re: [PATCH net-next v12 2/5] netvsc: refactor notifier/event handling code to use the failover framework

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Message-ID: <20180531203301-mutt-send-email-mst@kernel.org>
Date:   Thu, 31 May 2018 20:34:03 +0300
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     "Samudrala, Sridhar" <sridhar.samudrala@...el.com>,
        davem@...emloft.net, netdev@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        virtio-dev@...ts.oasis-open.org, jesse.brandeburg@...el.com,
        alexander.h.duyck@...el.com, kubakici@...pl, jasowang@...hat.com,
        loseweigh@...il.com, jiri@...nulli.us, aaron.f.brown@...el.com,
        anjali.singhai@...el.com
Subject: Re: [PATCH net-next v12 2/5] netvsc: refactor notifier/event
 handling code to use the failover framework

On Thu, May 31, 2018 at 08:58:12AM -0400, Stephen Hemminger wrote:
> On Wed, 30 May 2018 20:03:11 -0700
> "Samudrala, Sridhar" <sridhar.samudrala@...el.com> wrote:
> 
> > On 5/30/2018 7:06 PM, Stephen Hemminger wrote:
> > > On Thu, 24 May 2018 09:55:14 -0700
> > > Sridhar Samudrala <sridhar.samudrala@...el.com> wrote:
> > >  
> > >> Use the registration/notification framework supported by the generic
> > >> failover infrastructure.
> > >>
> > >> Signed-off-by: Sridhar Samudrala <sridhar.samudrala@...el.com>  
> > > Why was this merged? It was never signed off by any of the netvsc maintainers,
> > > and there were still issues unresolved.
> > >
> > > There are also namespaces issues I am fixing and this breaks them.
> > > Will start my patch set with a revert for this. Sorry  
> > 
> > I would appreciate if you can make the fixes on top of this patch series. I tried hard
> > to make sure that netvsc functionality and behavior doesn't change.
> > 
> > It is possible that there could be some bugs introduced, but they can be fixed.
> > Looks like Wei already found a bug and submitted a fix for that.
> > 
> 
> Ok, but several of these may clash with what you want for virtio.
> Like:
> 	- VF should be moved to namespace of virt device
> 	- VF should be associated based on message from host with serial # not
> 	  registration notifier and MAC address.
> 	- control operations should use master device reference rather than
> 	  searching based on MAC.
> 
> As you can see these are structural changes.

We might want to do these for virtio as well, at least as
an option.

-- 
MST