From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [V5 PATCH] virtio-net: send gratuitous packets when needed
Date: Tue, 27 Mar 2012 22:31:12 -0400 (EDT)
Message-ID: <20120327.223112.2032989102915830685.davem@davemloft.net>
References: <20120316090100.5223.50783.stgit@amd-6168-8-1.englab.nay.redhat.com>
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From: Jason Wang <jasowang@redhat.com>
Date: Fri, 16 Mar 2012 17:01:01 +0800

> As hypervior does not have the knowledge of guest network configuration, it's
> better to ask guest to send gratuitous packets when needed.
> 
> Guest tests VIRTIO_NET_S_ANNOUNCE bit during config change interrupt and when it
> is set, a workqueue is scheduled to send gratuitous packet through
> NETDEV_NOTIFY_PEERS. This feature is negotiated through bit
> VIRTIO_NET_F_GUEST_ANNOUNCE.
> 
> Changes from v4:
> - typos
> - handle workqueue unconditionally
> - move VIRTIO_NET_S_ANNOUNCE to bit 8 to separate rw bits from ro bits
> 
> Changes from v3:
> - cancel the workqueue during freeze
> 
> Changes from v2:
> - fix the race between unregister_dev() and workqueue
> 
> Signed-off-by: Jason Wang <jasowang@redhat.com>

What's happening with this patch?