linux/tools/testing/selftests/drivers/net/lib/py, branch for-next

selftests: nic_performance: Add selftest for performance of NIC driver

2024-11-19T09:15:29Z

Add selftest case to check the send and receive throughput. Supported link modes between local NIC driver and partner are varied. Then send and receive throughput is captured and verified. Test uses iperf3 tool. Add iperf3 server/client function in GenerateTraffic class. Signed-off-by: Mohan Prasad J Signed-off-by: Paolo Abeni

selftests: net: ksft: support marking tests as disruptive

2024-08-02T23:09:27Z

Add new @ksft_disruptive decorator to mark the tests that might be disruptive to the system. Depending on how well the previous test works in the CI we might want to disable disruptive tests by default and only let the developers run them manually. KSFT framework runs disruptive tests by default. DISRUPTIVE=False environment (or config file) can be used to disable these tests. ksft_setup should be called by the test cases that want to use new decorator (ksft_setup is only called via NetDrvEnv/NetDrvEpEnv for now). In the future we can add similar decorators to, for example, avoid running slow tests all the time. And/or have some option to run only 'fast' tests for some sort of smoke test scenario. $ DISRUPTIVE=False ./stats.py KTAP version 1 1..5 ok 1 stats.check_pause ok 2 stats.check_fec ok 3 stats.pkt_byte_sum ok 4 stats.qstat_by_ifindex ok 5 stats.check_down # SKIP marked as disruptive # Totals: pass:4 fail:0 xfail:0 xpass:0 skip:1 error:0 v3: - parse yes and properly treat non-zero nums as true (Petr) v2: - convert from cli argument to env variable (Jakub) Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20240802000309.2368-2-sdf@fomichev.me Signed-off-by: Jakub Kicinski

selftests: drv-net: rss_ctx: add tests for RSS configuration and contexts

2024-06-27T02:07:16Z

Add tests focusing on indirection table configuration and creating extra RSS contexts in drivers which support it. $ export NETIF=eth0 REMOTE_... $ ./drivers/net/hw/rss_ctx.py KTAP version 1 1..8 ok 1 rss_ctx.test_rss_key_indir ok 2 rss_ctx.test_rss_context ok 3 rss_ctx.test_rss_context4 # Increasing queue count 44 -> 66 # Failed to create context 32, trying to test what we got ok 4 rss_ctx.test_rss_context32 # SKIP Tested only 31 contexts, wanted 32 ok 5 rss_ctx.test_rss_context_overlap ok 6 rss_ctx.test_rss_context_overlap2 # .. sprays traffic like a headless chicken .. not ok 7 rss_ctx.test_rss_context_out_of_order ok 8 rss_ctx.test_rss_context4_create_with_cfg # Totals: pass:6 fail:1 xfail:0 xpass:0 skip:1 error:0 Note that rss_ctx.test_rss_context_out_of_order fails with the device I tested with, but it seems to be a device / driver bug. Reviewed-by: Petr Machata Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20240626012456.2326192-5-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: add ability to wait for at least N packets to load gen

2024-06-27T02:06:03Z

Teach the load generator how to wait for at least given number of packets to be received. This will be useful for filtering where we'll want to send a non-trivial number of packets and make sure they landed in right queues. Reviewed-by: Breno Leitao Reviewed-by: Petr Machata Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20240626012456.2326192-4-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: add helper to wait for HW stats to sync

2024-06-27T02:06:03Z

Some devices DMA stats to the host periodically. Add a helper which can wait for that to happen, based on frequency reported by the driver in ethtool. Reviewed-by: Petr Machata Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20240626012456.2326192-3-kuba@kernel.org Signed-off-by: Jakub Kicinski

net: selftest: add test for netdev netlink queue-get API

2024-05-09T01:59:47Z

Add a selftest for netdev generic netlink. For now there is only a single test that exercises the `queue-get` API. The test works with netdevsim by default or with a real device by setting NETIF. Add a timeout param to cmd() since ethtool -L can take a long time on real devices. Signed-off-by: David Wei Link: https://lore.kernel.org/r/20240507163228.2066817-3-dw@davidwei.uk Signed-off-by: Jakub Kicinski

selftests: drv-net: support generating iperf3 load

2024-04-30T15:15:32Z

While we are not very interested in testing performance it's useful to be able to generate a lot of traffic. iperf is the simplest way of getting relatively high PPS. Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20240429144426.743476-6-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net-hw: support using Python from net hw tests

2024-04-30T15:15:31Z

We created a separate directory for HW-only tests, recently. Glue in the Python test library there, Python is a bit annoying when it comes to using library code located "lower" in the directory structure. Reuse the Env class, but let tests require non-nsim setup. Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20240429144426.743476-3-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: validate the environment

2024-04-26T23:10:26Z

Throw a slightly more helpful exception when env variables are partially populated. Prior to this change we'd get a dictionary key exception somewhere later on. Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20240425222341.309778-4-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: reimplement the config parser

2024-04-26T23:10:26Z

The shell lexer is not helping much, do very basic parsing manually. Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20240425222341.309778-3-kuba@kernel.org Signed-off-by: Jakub Kicinski