diff options
Diffstat (limited to 'tools/testing')
| -rwxr-xr-x | tools/testing/selftests/drivers/net/xdp.py | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/tools/testing/selftests/drivers/net/xdp.py b/tools/testing/selftests/drivers/net/xdp.py index 7e635487d517..2ad5932299e8 100755 --- a/tools/testing/selftests/drivers/net/xdp.py +++ b/tools/testing/selftests/drivers/net/xdp.py @@ -13,7 +13,7 @@ from enum import Enum from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_ge, ksft_ne, ksft_pr from lib.py import KsftNamedVariant, ksft_variants -from lib.py import KsftFailEx, NetDrvEpEnv +from lib.py import KsftFailEx, KsftSkipEx, NetDrvEpEnv from lib.py import EthtoolFamily, NetdevFamily, NlError from lib.py import bkg, cmd, rand_port, wait_port_listen from lib.py import ip, defer @@ -693,6 +693,34 @@ def test_xdp_native_qstats(cfg, act): ksft_ge(after['tx-packets'], before['tx-packets']) +def test_xdp_native_update_mb_to_sb(cfg): + """ + Test multi-buf to single-buf replacement with jumbo MTU. + """ + obj = cfg.net_lib_dir / "xdp_dummy.bpf.o" + mtu = 9000 + + ip(f"link set dev {cfg.ifname} mtu {mtu}") + defer(ip, f"link set dev {cfg.ifname} mtu {cfg.dev['mtu']} xdpdrv off") + + attach = cmd(f"ip link set dev {cfg.ifname} xdpdrv obj {obj} sec xdp", fail=False) + if attach.ret == 0: + raise KsftSkipEx(f"device supports single-buffer XDP with mtu {mtu}") + + attach = cmd(f"ip link set dev {cfg.ifname} xdpdrv obj {obj} sec xdp.frags", fail=False) + if attach.ret != 0: + ksft_pr(attach) + raise KsftSkipEx("device does not support multi-buffer XDP") + + # Verify updating mb -> mb program works. + cmd(f"ip -force link set dev {cfg.ifname} xdpdrv obj {obj} sec xdp.frags") + + # Verify updating mb -> sb program does not work. + update = cmd(f"ip -force link set dev {cfg.ifname} xdpdrv obj {obj} sec xdp", fail=False) + if update.ret == 0: + raise KsftFailEx("device unexpectedly updates non-multi-buffer XDP") + + def main(): """ Main function to execute the XDP tests. @@ -718,6 +746,7 @@ def main(): test_xdp_native_adjst_head_grow_data, test_xdp_native_adjst_head_shrnk_data, test_xdp_native_qstats, + test_xdp_native_update_mb_to_sb, ], args=(cfg,)) ksft_exit() |