kernel.git/tools/testing/selftests/drivers/net/lib/py/env.py, branch linux-6.14.y

selftests: drv-net: test drivers sleeping in ndo_get_stats64

2025-01-09T03:36:46Z

Most of our tests use rtnetlink to read device stats, so they don't expose the drivers much to paths in which device stats are read under RCU. Add tests which hammer profcs reads to make sure drivers: - don't sleep while reporting stats, - can handle parallel reads, - can handle device going down while reading. Set ifname on the env class in NetDrvEnv, we already do that in NetDrvEpEnv. KTAP version 1 1..7 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 ok 6 stats.procfs_hammer # completed up/down cycles: 6 ok 7 stats.procfs_downup_hammer # Totals: pass:7 fail:0 xfail:0 xpass:0 skip:0 error:0 Reviewed-by: Petr Machata Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20250107022932.2087744-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: assume stats refresh is 0 if no ethtool -c support

2024-12-23T18:12:20Z

Tests using HW stats wait for them to stabilize, using data from ethtool -c as the delay. Not all drivers implement ethtool -c so handle the errors gracefully. Reviewed-by: Andrew Lunn Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20241220003116.1458863-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

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: 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-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

selftests: drv-net: add require_XYZ() helpers for validating env

2024-04-23T17:13:56Z

Wrap typical checks like whether given command used by the test is available in helpers. Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20240420025237.3309296-8-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: add a TCP ping test case (and useful helpers)

2024-04-23T17:13:56Z

More complex tests often have to spawn a background process, like a server which will respond to requests or tcpdump. Add support for creating such processes using the with keyword: with bkg("my-daemon", ..): # my-daemon is alive in this block My initial thought was to add this support to cmd() directly but it runs the command in the constructor, so by the time we __enter__ it's too late to make sure we used "background=True". Second useful helper transplanted from net_helper.sh is wait_port_listen(). The test itself uses socat, which insists on v6 addresses being wrapped in [], it's not the only command which requires this format, so add the wrapped address to env. The hope is to save test code from checking if address is v6. Reviewed-by: Willem de Bruijn Link: https://lore.kernel.org/r/20240420025237.3309296-7-kuba@kernel.org Signed-off-by: Jakub Kicinski