Bringing the Power of eBPF to Open vSwitch

Explore the challenges and experiences of integrating eBPF with Open vSwitch (OVS) in this Linux Plumbers Conference talk. Dive into three approaches: attaching eBPF to TC, offloading processing to XDP, and bypassing the kernel with AF_XDP. Learn about the limitations encountered, workarounds implemented, and ongoing efforts to enhance OVS functionality using eBPF. Discover the trade-offs between different layers of packet processing, from TC to XDP, and understand the potential of AF_XDP for userspace implementations. Gain insights into the future direction of OVS development and the role of eBPF in improving network virtualization performance.