XDP support is an increasing trend on the network devices. XDP main goal is processing packets at the lowest point in the software stack avoiding overheads. Memory recycling of received buffers achieved through the in kernel pagepool API plays a fundamental role in the increased performance. Adding XDP support on a driver can be non-trivial. In this talk we'll demonstrate how porting a standard ethernet driver (mvneta/netsec) to XDP and the pagepool API can boost performance. Part of the page_pool evolution involves adding the recycling support in the kernel's SKB stack and leverage the increased performance attributes of the API.
Speakers: Ilias Apalodimas Lorenzo Bianconi