Re: [ovs-dev] [PATCH v3 2/3] netdev-dpdk: Avoid reconfiguration on VIRTIO_NET_F_MQ changes.

2019-06-26 Thread Ian Stokes
On 4/25/2019 4:22 PM, David Marchand wrote: At the moment, a malicious guest might negotiate VIRTIO_NET_F_MQ and !VIRTIO_NET_F_MQ in a loop which would be seen as qp_num going from 1 to n and n to 1 continuously, triggering datapath reconfigurations at each transition. Limit this by only reconfi

[ovs-dev] [PATCH v3 2/3] netdev-dpdk: Avoid reconfiguration on VIRTIO_NET_F_MQ changes.

2019-04-25 Thread David Marchand
At the moment, a malicious guest might negotiate VIRTIO_NET_F_MQ and !VIRTIO_NET_F_MQ in a loop which would be seen as qp_num going from 1 to n and n to 1 continuously, triggering datapath reconfigurations at each transition. Limit this by only reconfiguring on increased qp_num. The previous patch