linux-stable.git/tools/testing/selftests/drivers/net/lib, branch v6.14

netconsole: selftest: Delete all userdata keys

2025-01-10T02:06:36+00:00

Modify the cleanup function to remove all userdata keys created during the
test, instead of just deleting a single predefined key. This ensures a
more thorough cleanup of temporary resources.

Move the KEY_PATH variable definition inside the set_user_data function
to reduce global variables and improve encapsulation. The KEY_PATH
variable is now dynamically created when setting user data.

This change has no effect on the current test, while improving an
upcoming test that would create several userdata entries.

Signed-off-by: Breno Leitao 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250108-netcons_overflow_test-v3-3-3d85eb091bec@debian.org
Signed-off-by: Jakub Kicinski

netconsole: selftest: Split the helpers from the selftest

2025-01-10T02:06:36+00:00

Split helper functions from the netconsole basic test into a separate
library file to enable reuse across different netconsole tests. This
change only moves the existing helper functions to lib/sh/lib_netcons.sh
while preserving the same test functionality.

The helpers provide common functions for:
- Setting up network namespaces and interfaces
- Managing netconsole dynamic targets
- Setting user data
- Handling test dependencies
- Cleanup operations

Do not make any change in the code, other than the mechanical
separation.

Signed-off-by: Breno Leitao 
Tested-by: Simon Horman 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250108-netcons_overflow_test-v3-2-3d85eb091bec@debian.org
Signed-off-by: Jakub Kicinski

selftests: drv-net: test drivers sleeping in ndo_get_stats64

2025-01-09T03:36:46+00:00

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

2024-12-23T18:12:20+00:00

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: nic_performance: Add selftest for performance of NIC driver

2024-11-19T09:15:29+00:00

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

2024-08-02T23:09:27+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