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: changes from v2: * move speed/duplex read into virtnet_config_changed_work() so link up changes are detected Jason Baron (1): virtio_net: propagate linkspeed/duplex settings from the hypervisor drivers/net/virtio_net.c | 19 ++++++++++++++++++- include/uapi/linux/virtio_net.h | 13 +++++++++++++ 2 files changed, 31 insertions(+), 1 deletion(-) qemu changes: changes from v2: * if link up return configured speed/duplex, else return UNKNOWN speed and duplex 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 | 89 ++++++++++++++++++++--------- include/hw/virtio/virtio-net.h | 5 +- include/standard-headers/linux/virtio_net.h | 13 +++++ 3 files changed, 79 insertions(+), 28 deletions(-) -- 2.6.1 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
