Validate that drivers with multi-buff XDP programs properly reinitialize xdp_buff between packets.
Signed-off-by: Jakub Kicinski <[email protected]> Signed-off-by: Dimitri Daskalakis <[email protected]> --- tools/testing/selftests/drivers/net/xdp.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/drivers/net/xdp.py b/tools/testing/selftests/drivers/net/xdp.py index cea24c9b573e..35e9495cd506 100755 --- a/tools/testing/selftests/drivers/net/xdp.py +++ b/tools/testing/selftests/drivers/net/xdp.py @@ -358,7 +358,10 @@ def test_xdp_native_tx_mb(cfg): """ bpf_info = BPFProgInfo("xdp_prog_frags", "xdp_native.bpf.o", "xdp.frags", 9000) - _test_xdp_native_tx(cfg, bpf_info, [8000]) + # The first packet ensures we exercise the fragmented code path. + # And the subsequent 0-sized packet ensures the driver + # reinitializes xdp_buff correctly. + _test_xdp_native_tx(cfg, bpf_info, [8000, 0]) def _validate_res(res, offset_lst, pkt_sz_lst): -- 2.47.3
