netdev - [PATCH net-next] selftests: drv-net: xdp: make sure we're actually testing native XDP

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Message-ID: <20250822195645.1673390-1-kuba@kernel.org>
Date: Fri, 22 Aug 2025 12:56:45 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	andrew+netdev@...n.ch,
	horms@...nel.org,
	shuah@...nel.org,
	daniel@...earbox.net,
	hawk@...nel.org,
	john.fastabend@...il.com,
	sdf@...ichev.me,
	linux-kselftest@...r.kernel.org,
	bpf@...r.kernel.org,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next] selftests: drv-net: xdp: make sure we're actually testing native XDP

Kernel tries to be helpful and attach the XDP program in generic
mode if the driver has no BPF ndo at all. Since the xdp.py tests
all have "native" in their names this can be quite confusing.
Force native / "drv" attachment. Note that netdevsim re-uses
the generic handler as its "native" handler, so we'll maintain
the test coverage of the generic mode that way. No need to test
both explicitly, I reckon.

Signed-off-by: Jakub Kicinski <kuba@...nel.org>
---
 tools/testing/selftests/drivers/net/xdp.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/drivers/net/xdp.py b/tools/testing/selftests/drivers/net/xdp.py
index 35e9495cd506..08fea4230759 100755
--- a/tools/testing/selftests/drivers/net/xdp.py
+++ b/tools/testing/selftests/drivers/net/xdp.py
@@ -112,10 +112,10 @@ from lib.py import ip, bpftool, defer
     defer(ip, f"link set dev {cfg.remote_ifname} mtu 1500", host=cfg.remote)
 
     cmd(
-    f"ip link set dev {cfg.ifname} mtu {bpf_info.mtu} xdp obj {abs_path} sec {bpf_info.xdp_sec}",
+    f"ip link set dev {cfg.ifname} mtu {bpf_info.mtu} xdpdrv obj {abs_path} sec {bpf_info.xdp_sec}",
     shell=True
     )
-    defer(ip, f"link set dev {cfg.ifname} mtu 1500 xdp off")
+    defer(ip, f"link set dev {cfg.ifname} mtu 1500 xdpdrv off")
 
     xdp_info = ip(f"-d link show dev {cfg.ifname}", json=True)[0]
     prog_info["id"] = xdp_info["xdp"]["prog"]["id"]
-- 
2.50.1