Shanghai, China
June 24–26, 2019
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Simultaneous translation will be provided for all keynote and breakout sessions.

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Wednesday, June 26 • 09:45 - 10:20
Efficient and Flexible Virtual Machine Networking Through eBPF - Jason Wang, Red Hat

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This talk will seek the method to build VM networking infrastructure through eBPF. Traditional networking datapath and several limitations of it will be reviewed first . Then eBPF based method will be introduced: eBPF based filtering allows a user configurable high speed packet filtering solution like virtio-net filter for vhost; eBPF based packet steering allows userspace to inject its own steering policy like RSS; eBPF/XDP based host datapth acceleration allow userspace to build a flexible and efficient datapath on host; eBPF offloading allow guest to offload eBPF tasks like XDP and tc_cls to host for a native packet processing on host. At the end, the performance numbers, challenges and future work will be also discussed.


Jason Wang

Senior Principal Software Engineer, Red Hat
Co-maintainer of kernel virtio, vdpa and vhost drivers. Maintainer of Qemu networking subsystems. Author of vDPA support in Kernel.

Wednesday June 26, 2019 09:45 - 10:20 CST