On Mon, Nov 04, 2024 at 10:14:30AM -0800, Stanislav Fomichev wrote:
Only RX side for now and small message to test the setup. In the future, we can extend it to TX side and to testing both sides with a couple of megs of data.
make \ -C tools/testing/selftests \ TARGETS="drivers/hw/net" \ install INSTALL_PATH=~/tmp/ksft
scp ~/tmp/ksft ${HOST}: scp ~/tmp/ksft ${PEER}:
cfg+="NETIF=${DEV}\n" cfg+="LOCAL_V6=${HOST_IP}\n" cfg+="REMOTE_V6=${PEER_IP}\n" cfg+="REMOTE_TYPE=ssh\n" cfg+="REMOTE_ARGS=root@${PEER}\n"
echo -e "$cfg" | ssh root@${HOST} "cat > ksft/drivers/net/net.config" ssh root@${HOST} "cd ksft && ./run_kselftest.sh -t drivers/net:devmem.py"
Reviewed-by: Mina Almasry almasrymina@google.com Signed-off-by: Stanislav Fomichev sdf@fomichev.me
.../testing/selftests/drivers/net/hw/Makefile | 1 + .../selftests/drivers/net/hw/devmem.py | 45 +++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100755 tools/testing/selftests/drivers/net/hw/devmem.py
diff --git a/tools/testing/selftests/drivers/net/hw/Makefile b/tools/testing/selftests/drivers/net/hw/Makefile index 182348f4bd40..1c6a77480923 100644 --- a/tools/testing/selftests/drivers/net/hw/Makefile +++ b/tools/testing/selftests/drivers/net/hw/Makefile @@ -3,6 +3,7 @@ TEST_PROGS = \ csum.py \ devlink_port_split.py \
- devmem.py \ ethtool.sh \ ethtool_extended_state.sh \ ethtool_mm.sh \
diff --git a/tools/testing/selftests/drivers/net/hw/devmem.py b/tools/testing/selftests/drivers/net/hw/devmem.py new file mode 100755 index 000000000000..1416c31ff81e --- /dev/null +++ b/tools/testing/selftests/drivers/net/hw/devmem.py @@ -0,0 +1,45 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0
+from lib.py import ksft_run, ksft_exit +from lib.py import ksft_eq, KsftSkipEx +from lib.py import NetDrvEpEnv +from lib.py import bkg, cmd, rand_port, wait_port_listen +from lib.py import ksft_disruptive
+def require_devmem(cfg):
- if not hasattr(cfg, "_devmem_probed"):
port = rand_port()probe_command = f"./ncdevmem -f {cfg.ifname}"cfg._devmem_supported = cmd(probe_command, fail=False, shell=True).ret == 0cfg._devmem_probed = True- if not cfg._devmem_supported:
raise KsftSkipEx("Test requires devmem support")+@ksft_disruptive +def check_rx(cfg) -> None:
- cfg.require_v6()
- require_devmem(cfg)
- port = rand_port()
- listen_cmd = f"./ncdevmem -l -f {cfg.ifname} -s {cfg.v6} -p {port}"
- with bkg(listen_cmd) as nc:
wait_port_listen(port)cmd(f"echo -e \"hello\\nworld\"| nc {cfg.v6} {port}", host=cfg.remote, shell=True)
FWIW, in the v3 of the series I submit, Jakub asked me to replace nc with socat due to issues with nc [1].
Your usage of nc seems pretty basic though, so maybe it's fine?
[1]: https://lore.kernel.org/netdev/20241101063426.2e1423a8@kernel.org/