netdev - Re: [PATCH v7 net-next 4/4] netvsc: refactor notifier/event handling code to use the failover framework

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Message-ID: <20180420082802.6ca37e4c@xeon-e3>
Date:   Fri, 20 Apr 2018 08:28:02 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Sridhar Samudrala <sridhar.samudrala@...el.com>
Cc:     mst@...hat.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
Subject: Re: [PATCH v7 net-next 4/4] netvsc: refactor notifier/event
 handling code to use the failover framework

On Thu, 19 Apr 2018 18:42:04 -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>

Do what you want to other devices but leave netvsc alone.
Adding these failover ops does not reduce the code size, and really is
no benefit.  The netvsc device driver needs to be backported to several
other distributions and doing this makes that harder.

I will NAK patches to change to common code for netvsc especially the
three device model.  MS worked hard with distro vendors to support transparent
mode, ans we really can't have a new model; or do backport.

Plus, DPDK is now dependent on existing model.