netdev - [PATCH net-next v2 0/6] selftests: drv-net: support testing with a remote system

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Message-ID: <20240416004556.1618804-1-kuba@kernel.org>
Date: Mon, 15 Apr 2024 17:45:50 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	pabeni@...hat.com,
	shuah@...nel.org,
	petrm@...dia.com,
	linux-kselftest@...r.kernel.org,
	willemdebruijn.kernel@...il.com,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH net-next v2 0/6] selftests: drv-net: support testing with a remote system

Hi!

Implement support for tests which require access to a remote system /
endpoint which can generate traffic.
This series concludes the "groundwork" for upstream driver tests.

I wanted to support the three models which came up in discussions:
 - SW testing with netdevsim
 - "local" testing with two ports on the same system in a loopback
 - "remote" testing via SSH
so there is a tiny bit of an abstraction which wraps up how "remote"
commands are executed. Otherwise hopefully there's nothing surprising.

I'm only adding a ping test. I had a bigger one written but I was
worried we'll get into discussing the details of the test itself
and how I chose to hack up netdevsim, instead of the test infra...
So that test will be a follow up :)

v2:
 - rename endpoint -> remote
 - use 2001:db8:: v6 prefix
 - add a note about persistent SSH connections
 - add the kernel config
v1: https://lore.kernel.org/all/20240412233705.1066444-1-kuba@kernel.org

Jakub Kicinski (6):
  selftests: drv-net: add stdout to the command failed exception
  selftests: drv-net: add config for netdevsim
  selftests: drv-net: define endpoint structures
  selftests: drv-net: factor out parsing of the env
  selftests: drv-net: construct environment for running tests which
    require an endpoint
  selftests: drv-net: add a trivial ping test

 tools/testing/selftests/drivers/net/Makefile  |   5 +-
 .../testing/selftests/drivers/net/README.rst  |  33 ++++
 tools/testing/selftests/drivers/net/config    |   2 +
 .../selftests/drivers/net/lib/py/__init__.py  |   1 +
 .../selftests/drivers/net/lib/py/env.py       | 141 +++++++++++++++---
 .../selftests/drivers/net/lib/py/remote.py    |  13 ++
 .../drivers/net/lib/py/remote_netns.py        |  15 ++
 .../drivers/net/lib/py/remote_ssh.py          |  34 +++++
 tools/testing/selftests/drivers/net/ping.py   |  32 ++++
 .../testing/selftests/net/lib/py/__init__.py  |   1 +
 tools/testing/selftests/net/lib/py/netns.py   |  31 ++++
 tools/testing/selftests/net/lib/py/utils.py   |  22 +--
 12 files changed, 301 insertions(+), 29 deletions(-)
 create mode 100644 tools/testing/selftests/drivers/net/config
 create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote.py
 create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote_netns.py
 create mode 100644 tools/testing/selftests/drivers/net/lib/py/remote_ssh.py
 create mode 100755 tools/testing/selftests/drivers/net/ping.py
 create mode 100644 tools/testing/selftests/net/lib/py/netns.py

-- 
2.44.0