diff mbox series

[net-next,13/13] selftests: ncdevmem: Add automated test

Message ID 20240912171251.937743-14-sdf@fomichev.me (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series selftests: ncdevmem: Add ncdevmem to ksft | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 16 this patch: 16
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 2 maintainers not CCed: shuah@kernel.org linux-kselftest@vger.kernel.org
netdev/build_clang success Errors and warnings before: 17 this patch: 17
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 22 this patch: 22
netdev/checkpatch warning WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/contest warning net-next-2024-09-13--00-00 (tests: 536)

Commit Message

Stanislav Fomichev Sept. 12, 2024, 5:12 p.m. UTC
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/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"

Cc: Mina Almasry <almasrymina@google.com>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
---
 tools/testing/selftests/drivers/net/Makefile  |  1 +
 tools/testing/selftests/drivers/net/devmem.py | 46 +++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100755 tools/testing/selftests/drivers/net/devmem.py

Comments

Mina Almasry Sept. 12, 2024, 8:34 p.m. UTC | #1
On Thu, Sep 12, 2024 at 10:13 AM Stanislav Fomichev <sdf@fomichev.me> 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/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"
>
> Cc: Mina Almasry <almasrymina@google.com>
> Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>

Thank you _very_ much. I had an action item to figure this out, and
awesome to see you beat me to it!

I'll take a deeper look and test and provide reviewed-by.


> ---
>  tools/testing/selftests/drivers/net/Makefile  |  1 +
>  tools/testing/selftests/drivers/net/devmem.py | 46 +++++++++++++++++++
>  2 files changed, 47 insertions(+)
>  create mode 100755 tools/testing/selftests/drivers/net/devmem.py
>
> diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile
> index bb8f7374942e..00da59970a76 100644
> --- a/tools/testing/selftests/drivers/net/Makefile
> +++ b/tools/testing/selftests/drivers/net/Makefile
> @@ -5,6 +5,7 @@ TEST_INCLUDES := $(wildcard lib/py/*.py) \
>                  ../../net/lib.sh \
>
>  TEST_PROGS := \
> +       devmem.py \
>         netcons_basic.sh \
>         ping.py \
>         queues.py \
> diff --git a/tools/testing/selftests/drivers/net/devmem.py b/tools/testing/selftests/drivers/net/devmem.py
> new file mode 100755
> index 000000000000..bbd32e0b0fe2
> --- /dev/null
> +++ b/tools/testing/selftests/drivers/net/devmem.py
> @@ -0,0 +1,46 @@
> +#!/usr/bin/env python3
> +# SPDX-License-Identifier: GPL-2.0
> +
> +import errno
> +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 -P -f {cfg.ifname} -s {cfg.v6} -p {port}"
> +        cfg._devmem_supported = cmd(probe_command, fail=False, shell=True).ret == 0
> +        cfg._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)
> +
> +    ksft_eq(nc.stdout.strip(), "hello\nworld")
> +
> +
> +def main() -> None:
> +    with NetDrvEpEnv(__file__) as cfg:
> +        ksft_run([check_rx],
> +                 args=(cfg, ))
> +    ksft_exit()
> +
> +
> +if __name__ == "__main__":
> +    main()
> --
> 2.46.0
>


--
Thanks,
Mina
diff mbox series

Patch

diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile
index bb8f7374942e..00da59970a76 100644
--- a/tools/testing/selftests/drivers/net/Makefile
+++ b/tools/testing/selftests/drivers/net/Makefile
@@ -5,6 +5,7 @@  TEST_INCLUDES := $(wildcard lib/py/*.py) \
 		 ../../net/lib.sh \
 
 TEST_PROGS := \
+	devmem.py \
 	netcons_basic.sh \
 	ping.py \
 	queues.py \
diff --git a/tools/testing/selftests/drivers/net/devmem.py b/tools/testing/selftests/drivers/net/devmem.py
new file mode 100755
index 000000000000..bbd32e0b0fe2
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/devmem.py
@@ -0,0 +1,46 @@ 
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import errno
+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 -P -f {cfg.ifname} -s {cfg.v6} -p {port}"
+        cfg._devmem_supported = cmd(probe_command, fail=False, shell=True).ret == 0
+        cfg._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)
+
+    ksft_eq(nc.stdout.strip(), "hello\nworld")
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__) as cfg:
+        ksft_run([check_rx],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()