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, and does not require
custom ethtool commands for virtio_net.
The ability to set linkspeed and duplex is useful in various cases
as described here:
16032be virtio_net: add ethtool support for set and get of settings
Using 'ethtool -s' continues to over-write the linkspeed/duplex
settings with this patch.
The 1/3 patch is against net-next, while the 2-3/3 patch are the associated
qemu changes that would go in after as update-linux-headers.sh should
be run first. So the qemu patches are a demonstration of how I intend this
to work.
Thanks,
-Jason
linux changes:
Jason Baron (1):
virtio_net: propagate linkspeed/duplex settings from the hypervisor
drivers/net/virtio_net.c | 17 ++++++++++++++++-
include/uapi/linux/virtio_net.h | 5 +++++
2 files changed, 21 insertions(+), 1 deletion(-)
qemu changes:
Jason Baron (2):
qemu: virtio-net: use 64-bit values for feature flags
qemu: add linkspeed and duplex settings to virtio-net
hw/net/virtio-net.c | 83 +++++++++++++++++++----------
include/hw/virtio/virtio-net.h | 5 +-
include/standard-headers/linux/virtio_net.h | 4 ++
3 files changed, 64 insertions(+), 28 deletions(-)
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