[PATCH 0/2] virtio_net: allow hypervisor to indicate linkspeed and duplex setting

From: Jason Baron
Date: Thu Dec 14 2017 - 14:34:46 EST


We have found it useful to be able to set the linkspeed and duplex
settings from the host-side for virtio_net. This obviates the need
for guest changes and settings for these fields.

The ability to set linkspeed and duplex was introduced by:

16032be virtio_net: add ethtool support for set and get of settings

And using 'ethtool -s' continues to over-write the linkspeed/duplex
settings with this patch.

The 1/2 patch is against net-next, while the 2/2 patch is the associated
qemu changes that would go in after as update-linux-headers.sh should
be run first. So 2/2 is more meant as a demonstration of how I intend this
to work.

Thanks,

-Jason

Jason Baron (2):
virtio_net: allow hypervisor to indicate linkspeed and duplex setting
qemu: add linkspeed and duplex setting to virtio-net

linux changes:

drivers/net/virtio_net.c | 11 ++++++++++-
include/uapi/linux/virtio_net.h | 4 ++++
2 files changed, 14 insertions(+), 1 deletion(-)

qemu changes:

hw/net/virtio-net.c | 29 +++++++++++++++++++++++++++++
include/hw/virtio/virtio-net.h | 3 +++
include/standard-headers/linux/virtio_net.h | 4 ++++
3 files changed, 36 insertions(+)

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2.6.1