[RFC PATCH net-next v1 4/4] selftests: ncdevmem: Add TX side to the test
From: Stanislav Fomichev <sdf@fomichev.me>
Date: 2024-09-13 15:09:22
Subsystem:
kernel selftest framework, networking drivers, the rest · Maintainers:
Shuah Khan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Also add a combined tx/rx test to send bulk data. Cc: Mina Almasry <redacted> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me> --- tools/testing/selftests/drivers/net/devmem.py | 37 ++++++++++++++++++- 1 file changed, 36 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/drivers/net/devmem.py b/tools/testing/selftests/drivers/net/devmem.py
index bbd32e0b0fe2..2e8903334d51 100755
--- a/tools/testing/selftests/drivers/net/devmem.py
+++ b/tools/testing/selftests/drivers/net/devmem.py@@ -35,9 +35,44 @@ from lib.py import ksft_disruptive ksft_eq(nc.stdout.strip(), "hello\nworld") +@ksft_disruptive +def check_tx(cfg) -> None: + cfg.require_v6() + require_devmem(cfg) + + port = rand_port() + listen_cmd = f"nc -l {cfg.v6} {port}" + + pwd = cmd(f"pwd").stdout.strip() + with bkg(listen_cmd) as nc: + wait_port_listen(port) + cmd(f"echo -e \"hello\\nworld\"| {pwd}/ncdevmem -f {cfg.ifname} -s {cfg.v6} -p {port}", host=cfg.remote, shell=True) + + ksft_eq(nc.stdout.strip(), "hello\nworld") + + +@ksft_disruptive +def check_txrx(cfg) -> None: + cfg.require_v6() + require_devmem(cfg) + + cmd(f"cat /dev/urandom | tr -dc '[:print:]' | head -c 1M > random_file.txt", host=cfg.remote, shell=True) + want_sha = cmd(f"sha256sum random_file.txt", host=cfg.remote, shell=True).stdout.strip() + + port = rand_port() + listen_cmd = f"./ncdevmem -l -f {cfg.ifname} -s {cfg.v6} -p {port} | tee random_file.txt | sha256sum -" + + pwd = cmd(f"pwd").stdout.strip() + with bkg(listen_cmd, exit_wait=True) as nc: + wait_port_listen(port) + cmd(f"cat random_file.txt | {pwd}/ncdevmem -f {cfg.ifname} -s {cfg.v6} -p {port}", host=cfg.remote, shell=True) + + ksft_eq(nc.stdout.strip().split(" ")[0], want_sha.split(" ")[0]) + + def main() -> None: with NetDrvEpEnv(__file__) as cfg: - ksft_run([check_rx], + ksft_run([check_tx, check_rx, check_txrx], args=(cfg, )) ksft_exit()
--
2.46.0