Offloading OVS Flow Processing Using eBPF by William Tu, VMware





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Published on Nov 23, 2016

Offloading OVS Flow Processing Using eBPF - William Tu, VMware

This work presents the design and implementation of an OVS prototype using eBPF, called OVS-eBPF. The OVS-eBPF aims to replace the kernel datapath of the current OVS implementation, and offloads the flow parsing, matching, and action execution in an eBPF program residing in Linux kernel. As a result, OVS-eBPF removes the dependency of OVS userspace code from the OVS kernel module. In addition, OVS-eBPF takes advantages of XDP (eXpress Data Path), a new fast path recently added to the kernel, and offloads certain part of the OVS datapath logic into the driver level. The preliminary performance evaluation will be presented.

About WilliamTu (Cheng-Chun)
William Tu (Cheng-Chun) is a senior MTS working in VMware OVS team. He is currently designing and implementing the eBPF datapath for the Open vSwitch.

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