Changes in xdp_metadata.bpf.c en Copyright 2015 Java e3cdf6cf5fc6db0643723083e2c70fffe098e249 - selftests: drv-net: xdp: Add rss_hash metadata tests http://kernelsources.org:8080/source/history/linux/tools/testing/selftests/net/lib/xdp_metadata.bpf.c#e3cdf6cf5fc6db0643723083e2c70fffe098e249 selftests: drv-net: xdp: Add rss_hash metadata testsThis test loads xdp_metadata.bpf which calls bpf_xdp_metadata_rx_hash() onincoming packets. The metadata from that packet is then sent to a BPFmap for validation. It borrows structure from xdp.py, reusing commonfunctions.The test checks the device's xdp-rx-metadata-features via netlinkbefore running and skips on devices that do not advertise hash support.This can be run on veth devices as well as real hardware.The test is fairly simple and just verifies that a TCP or UDP packet can beidentified as an L4 flow. This minimal test also passes if run on a vethdevice.Signed-off-by: Chris J Arges <carges@cloudflare.com>Link: https://patch.msgid.link/20260325201139.2501937-7-carges@cloudflare.comSigned-off-by: Jakub Kicinski <kuba@kernel.org> List of files: /linux/tools/testing/selftests/net/lib/xdp_metadata.bpf.c Wed, 25 Mar 2026 21:09:52 +0100 Chris J Arges <carges@cloudflare.com>