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Subject: Re: [PATCH 4/4] virtio-net: add linkspeed and duplex settings to virtio-net
On 2018年03月02日 11:46, Jason Baron wrote:
Although linkspeed and duplex can be set in a linux guest via 'ethtool -s', this requires custom ethtool commands for virtio-net by default. Introduce a new feature flag, VIRTIO_NET_F_SPEED_DUPLEX, which allows the hypervisor to export a linkspeed and duplex setting. The user can subsequently overwrite it later if desired via: 'ethtool -s'. Linkspeed and duplex settings can be set as: '-device virtio-net,speed=10000,duplex=full'
I was thinking whether or not it's better to decide the duplex by the type of backends.
E.g userspace and vhost-kernel implement a in fact half duplex. But dpdk implement a full duplex.
Thanks
where speed is [0...INT_MAX], and duplex is ["half"|"full"]. Signed-off-by: Jason Baron<jbaron@akamai.com> Cc: "Michael S. Tsirkin"<mst@redhat.com> Cc: Jason Wang<jasowang@redhat.com> Cc:virtio-dev@lists.oasis-open.org ---
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