From: Jakub Kicinski <kuba@kernel.org>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com,
andrew+netdev@lunn.ch, horms@kernel.org,
linux-kselftest@vger.kernel.org, shuah@kernel.org,
willemb@google.com, petrm@nvidia.com, dw@davidwei.uk,
mst@redhat.com, Jakub Kicinski <kuba@kernel.org>
Subject: [PATCH net-next v3 1/6] selftests: net: move gro to lib for HW vs SW reuse
Date: Mon, 16 Mar 2026 15:45:00 -0700 [thread overview]
Message-ID: <20260316224505.279672-2-kuba@kernel.org> (raw)
In-Reply-To: <20260316224505.279672-1-kuba@kernel.org>
The gro.c packet sender is used for SW testing but bulk of incoming
new tests will be HW-specific. So it's better to put them under
drivers/net/hw/, to avoid tip-toeing around netdevsim. Move gro.c
to lib so we can reuse it.
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
tools/testing/selftests/drivers/net/Makefile | 1 -
tools/testing/selftests/net/lib/Makefile | 1 +
tools/testing/selftests/{drivers/net => net/lib}/gro.c | 2 +-
tools/testing/selftests/drivers/net/.gitignore | 1 -
tools/testing/selftests/drivers/net/gro.py | 2 +-
tools/testing/selftests/net/lib/.gitignore | 1 +
6 files changed, 4 insertions(+), 4 deletions(-)
rename tools/testing/selftests/{drivers/net => net/lib}/gro.c (99%)
diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile
index 8154d6d429d3..7c7fa75b80c2 100644
--- a/tools/testing/selftests/drivers/net/Makefile
+++ b/tools/testing/selftests/drivers/net/Makefile
@@ -6,7 +6,6 @@ TEST_INCLUDES := $(wildcard lib/py/*.py) \
../../net/lib.sh \
TEST_GEN_FILES := \
- gro \
napi_id_helper \
# end of TEST_GEN_FILES
diff --git a/tools/testing/selftests/net/lib/Makefile b/tools/testing/selftests/net/lib/Makefile
index 5339f56329e1..ff83603397d0 100644
--- a/tools/testing/selftests/net/lib/Makefile
+++ b/tools/testing/selftests/net/lib/Makefile
@@ -14,6 +14,7 @@ TEST_FILES := \
TEST_GEN_FILES := \
$(patsubst %.c,%.o,$(wildcard *.bpf.c)) \
csum \
+ gro \
xdp_helper \
# end of TEST_GEN_FILES
diff --git a/tools/testing/selftests/drivers/net/gro.c b/tools/testing/selftests/net/lib/gro.c
similarity index 99%
rename from tools/testing/selftests/drivers/net/gro.c
rename to tools/testing/selftests/net/lib/gro.c
index 3c0745b68bfa..02e29509fbea 100644
--- a/tools/testing/selftests/drivers/net/gro.c
+++ b/tools/testing/selftests/net/lib/gro.c
@@ -77,7 +77,7 @@
#include <unistd.h>
#include "kselftest.h"
-#include "../../net/lib/ksft.h"
+#include "ksft.h"
#define DPORT 8000
#define SPORT 1500
diff --git a/tools/testing/selftests/drivers/net/.gitignore b/tools/testing/selftests/drivers/net/.gitignore
index 3633c7a3ed65..585ecb4d5dc4 100644
--- a/tools/testing/selftests/drivers/net/.gitignore
+++ b/tools/testing/selftests/drivers/net/.gitignore
@@ -1,4 +1,3 @@
# SPDX-License-Identifier: GPL-2.0-only
-gro
napi_id_helper
psp_responder
diff --git a/tools/testing/selftests/drivers/net/gro.py b/tools/testing/selftests/drivers/net/gro.py
index cbc1b19dbc91..2da53686354f 100755
--- a/tools/testing/selftests/drivers/net/gro.py
+++ b/tools/testing/selftests/drivers/net/gro.py
@@ -117,7 +117,7 @@ from lib.py import ksft_variants
""" Setup hardware loopback mode for GRO testing. """
if not hasattr(cfg, "bin_remote"):
- cfg.bin_local = cfg.test_dir / "gro"
+ cfg.bin_local = cfg.net_lib_dir / "gro"
cfg.bin_remote = cfg.remote.deploy(cfg.bin_local)
if not hasattr(cfg, "feat"):
diff --git a/tools/testing/selftests/net/lib/.gitignore b/tools/testing/selftests/net/lib/.gitignore
index bbc97d6bf556..6cd2b762af5d 100644
--- a/tools/testing/selftests/net/lib/.gitignore
+++ b/tools/testing/selftests/net/lib/.gitignore
@@ -1,3 +1,4 @@
# SPDX-License-Identifier: GPL-2.0-only
csum
+gro
xdp_helper
--
2.53.0
next prev parent reply other threads:[~2026-03-16 22:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-16 22:44 [PATCH net-next v3 0/6] selftests: drv-net: driver tests for HW GRO Jakub Kicinski
2026-03-16 22:45 ` Jakub Kicinski [this message]
2026-03-16 22:45 ` [PATCH net-next v3 2/6] selftests: drv-net: give HW stats sync time extra 25% of margin Jakub Kicinski
2026-03-16 22:45 ` [PATCH net-next v3 3/6] selftests: drv-net: gro: use SO_TXTIME to schedule packets together Jakub Kicinski
2026-03-16 22:45 ` [PATCH net-next v3 4/6] selftests: drv-net: gro: test GRO stats Jakub Kicinski
2026-03-16 22:45 ` [PATCH net-next v3 5/6] selftests: drv-net: gro: add test for packet ordering Jakub Kicinski
2026-03-16 22:45 ` [PATCH net-next v3 6/6] selftests: drv-net: gro: add a test for GRO depth Jakub Kicinski
2026-03-17 18:05 ` Jakub Kicinski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260316224505.279672-2-kuba@kernel.org \
--to=kuba@kernel.org \
--cc=andrew+netdev@lunn.ch \
--cc=davem@davemloft.net \
--cc=dw@davidwei.uk \
--cc=edumazet@google.com \
--cc=horms@kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=mst@redhat.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=petrm@nvidia.com \
--cc=shuah@kernel.org \
--cc=willemb@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox