[ovs-dev] [PATCHv9] netdev-afxdp: add new netdev type for AF_XDP.

[Ben Pfaff]

On Fri, May 24, 2019 at 11:03:33AM -0700, William Tu wrote:
> The patch introduces experimental AF_XDP support for OVS netdev.
> AF_XDP, the Address Family of the eXpress Data Path, is a new Linux socket
> type built upon the eBPF and XDP technology.  It is aims to have comparable
> performance to DPDK but cooperate better with existing kernel's networking
> stack.  An AF_XDP socket receives and sends packets from an eBPF/XDP program
> attached to the netdev, by-passing a couple of Linux kernel's subsystems
> As a result, AF_XDP socket shows much better performance than AF_PACKET
> For more details about AF_XDP, please see linux kernel's
> Documentation/networking/af_xdp.rst. Note that by default, this feature is
> not compiled in.
> 
> Signed-off-by: William Tu <u9012063 at gmail.com>

How heavy is the x86(_64)-only dependency?  It seems undesirable.