This patch series add tests to validate XDP native support for PASS, DROP, ABORT, and TX actions, as well as headroom and tailroom adjustment. For adjustment tests, validate support for both the extension and shrinking cases across various packet sizes and offset values. The pass criteria for head/tail adjustment tests require that at-least one adjustment value works for at-least one packet size. This ensure that the variability in maximum supported head/tail adjustment offset across different drivers is being incorporated. The results reported in this series are based on fbnic. However, the series is tested against multiple other drivers including netdevism. Note: The XDP support for fbnic will be added later. --- Change-log: V5: - Fix warning caused by rcu_dereference() in p1 - Fix checkpatch warnings with P3, P4, and P5 V4: https://lore.kernel.org/netdev/20250714210352.1115230-1-mohsin.bashr@xxxxxxxxx V3: https://lore.kernel.org/netdev/20250712002648.2385849-1-mohsin.bashr@xxxxxxxxx V2: https://lore.kernel.org/netdev/20250710184351.63797-1-mohsin.bashr@xxxxxxxxx V1: https://lore.kernel.org/netdev/20250709173707.3177206-1-mohsin.bashr@xxxxxxxxx Jakub Kicinski (1): net: netdevsim: hook in XDP handling Mohsin Bashir (4): selftests: drv-net: Test XDP_PASS/DROP support selftests: drv-net: Test XDP_TX support selftests: drv-net: Test tail-adjustment support selftests: drv-net: Test head-adjustment support drivers/net/netdevsim/netdev.c | 19 +- tools/testing/selftests/drivers/net/Makefile | 1 + tools/testing/selftests/drivers/net/xdp.py | 656 ++++++++++++++++++ .../selftests/net/lib/xdp_native.bpf.c | 540 ++++++++++++++ 4 files changed, 1215 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/drivers/net/xdp.py create mode 100644 tools/testing/selftests/net/lib/xdp_native.bpf.c -- 2.47.1
