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Re: [Qemu-devel] [PATCH v2 1/2] hw/net/virtio-net: Move DEFINE_VIRTIO_NE


From: Cornelia Huck
Subject: Re: [Qemu-devel] [PATCH v2 1/2] hw/net/virtio-net: Move DEFINE_VIRTIO_NET_FEATURES to virtio-net
Date: Tue, 21 Apr 2015 09:30:25 +0200

On Tue, 21 Apr 2015 09:43:36 +0800
Shannon Zhao <address@hidden> wrote:

> On 2015/4/20 19:32, Cornelia Huck wrote:
> > On Mon, 20 Apr 2015 16:20:00 +0800
> > address@hidden wrote:
> > 
> >> From: Shannon Zhao <address@hidden>
> >>
> >> Move DEFINE_VIRTIO_NET_FEATURES to the backend virtio-net.
> >> The transports just sync the host features from backend.
> >>
> >> Signed-off-by: Shannon Zhao <address@hidden>
> >> Signed-off-by: Shannon Zhao <address@hidden>
> >> ---
> >>  hw/net/virtio-net.c            | 4 ++++
> >>  hw/s390x/s390-virtio-bus.c     | 1 -
> >>  hw/s390x/virtio-ccw.c          | 1 -
> >>  hw/virtio/virtio-pci.c         | 1 -
> >>  include/hw/virtio/virtio-net.h | 1 +
> >>  5 files changed, 5 insertions(+), 3 deletions(-)
> > 
> > I need the following change to make this work for virtio-ccw:
> >
> 
> 
> Maybe we can use following patch. This moves virtio_net_set_config_size to
> virtio_net_device_realize function. As the features are moved to virtio-net,
> so we should set the config_size in virtio-net too. And this can be useful to
> virtio-mmio which now doesn't call virtio_net_set_config_size in
> virtio-mmio's realize function.

I think this makes sense.

> 
> Cornelia, could you check if this works on s390? Thanks.

Networking works again via virtio-ccw with this patch on top.

I'll still try to figure out a better sequence for realizing/plugging
virtio-ccw devices, but I think that is orthogonal to this patch.




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