From: David Miller <davem@davemloft.net>
To: jasowang@redhat.com
Cc: netdev@vger.kernel.org, mst@redhat.com,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org
Subject: Re: [V5 PATCH] virtio-net: send gratuitous packets when needed
Date: Tue, 27 Mar 2012 22:31:12 -0400 (EDT) [thread overview]
Message-ID: <20120327.223112.2032989102915830685.davem@davemloft.net> (raw)
In-Reply-To: <20120316090100.5223.50783.stgit@amd-6168-8-1.englab.nay.redhat.com>
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?
next prev parent reply other threads:[~2012-03-28 2:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-16 9:01 [V5 PATCH] virtio-net: send gratuitous packets when needed Jason Wang
2012-03-28 2:31 ` David Miller [this message]
2012-03-28 2:35 ` Jason Wang
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