kernel/linux.git/tools/testing/selftests/drivers/net/lib, branch v6.12.80

selftests: drv-net: Fix remote command checking in require_cmd()

2025-08-15T10:13:47+00:00

[ Upstream commit b4d52c698210ae1a3ceb487b189701bc70551a48 ] The require_cmd() method was checking for command availability locally even when remote=True was specified, due to a missing host parameter. Fix by passing host=self.remote when checking remote command availability, ensuring commands are verified on the correct host. Fixes: f1e68a1a4a40 ("selftests: drv-net: add require_XYZ() helpers for validating env") Reviewed-by: Nimrod Oren Signed-off-by: Gal Pressman Link: https://patch.msgid.link/20250723135454.649342-2-gal@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: drv-net: wait for iperf client to stop sending

2025-08-01T08:48:41+00:00

[ Upstream commit 86941382508850d58c11bdafe0fec646dfd31b09 ] A few packets may still be sent out during the termination of iperf processes. These late packets cause failures in rss_ctx.py when they arrive on queues expected to be empty. Example failure observed: Check failed 2 != 0 traffic on inactive queues (context 1): [0, 0, 1, 1, 386385, 397196, 0, 0, 0, 0, ...] Check failed 4 != 0 traffic on inactive queues (context 2): [0, 0, 0, 0, 2, 2, 247152, 253013, 0, 0, ...] Check failed 2 != 0 traffic on inactive queues (context 3): [0, 0, 0, 0, 0, 0, 1, 1, 282434, 283070, ...] To avoid such failures, wait until all client sockets for the requested port are either closed or in the TIME_WAIT state. Fixes: 847aa551fa78 ("selftests: drv-net: rss_ctx: factor out send traffic and check") Signed-off-by: Nimrod Oren Reviewed-by: Gal Pressman Reviewed-by: Carolina Jubran Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250722122655.3194442-1-noren@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin

selftests: net: ksft: support marking tests as disruptive

2024-08-02T23:09:27+00:00

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

2024-06-27T02:07:16+00:00

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

2024-06-27T02:06:03+00:00

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

2024-06-27T02:06:03+00:00

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

2024-05-09T01:59:47+00:00

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

2024-04-30T15:15:32+00:00

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

2024-04-30T15:15:31+00:00

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

2024-04-26T23:10:26+00:00

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