linux-stable.git/tools/testing/selftests/drivers/net/lib, branch v6.18

selftest: netcons: add test for netconsole over bonded interfaces

2025-11-11T02:34:44+00:00

This patch adds a selftest that verifies netconsole functionality
over bonded network interfaces using netdevsim. It sets up two bonded
interfaces acting as transmit (TX) and receive (RX) ends, placed in
separate network namespaces. The test sends kernel log messages and
verifies that they are properly received on the bonded RX interfaces
with both IPv4 and IPv6, and using basic and extended netconsole
formats.

This patchset aims to test a long-standing netpoll subsystem where
netpoll has multiple users. (in this case netconsole and bonding). A
similar selftest has been discussed in [1] and [2].

This test also tries to enable bonding and netpoll in different order,
just to guarantee that all the possibilities are exercised.

Link: https://lore.kernel.org/all/20250905-netconsole_torture-v3-0-875c7febd316@debian.org/ [1]
Link: https://lore.kernel.org/lkml/96b940137a50e5c387687bb4f57de8b0435a653f.1404857349.git.decot@googlers.com/ [2]
Signed-off-by: Breno Leitao 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20251107-netconsole_torture-v10-4-749227b55f63@debian.org
Signed-off-by: Jakub Kicinski

selftest: netcons: refactor target creation

2025-11-11T02:34:44+00:00

Extract the netconsole target creation from create_dynamic_target(), by
moving it from create_dynamic_target() into a new helper function. This
enables other tests to use the creation of netconsole targets with
arbitrary parameters and no sleep.

The new helper will be utilized by forthcoming torture-type selftests
that require dynamic target management.

Signed-off-by: Breno Leitao 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20251107-netconsole_torture-v10-2-749227b55f63@debian.org
Signed-off-by: Jakub Kicinski

selftests: drv-net: update remaining Python init files

2025-10-12T18:03:53+00:00

Convert remaining __init__ files similar to what we did in
commit b615879dbfea ("selftests: drv-net: make linters happy with our imports")

Signed-off-by: Jakub Kicinski 
Signed-off-by: Stanislav Fomichev 
Reviewed-by: Simon Horman 
Signed-off-by: David S. Miller

selftests: drv-net: make linters happy with our imports

2025-10-07T10:12:44+00:00

Linters are still not very happy with our __init__ files,
which was pointed out in recent review (see Link).

We have previously started importing things one by one to
make linters happy with the test files (which import from __init__).
But __init__ file itself still makes linters unhappy.

To clean it up I believe we must completely remove the wildcard
imports, and assign the imported modules to __all__.

hds.py needs to be fixed because it seems to be importing
the Python standard random from lib.net.

We can't use ksft_pr() / ktap_result() in case importing
from net.lib fails. Linters complain that those helpers
themselves may not have been imported.

Link: https://lore.kernel.org/9d215979-6c6d-4e9b-9cdd-39cff595866e@redhat.com
Signed-off-by: Jakub Kicinski 
Link: https://patch.msgid.link/20251003164748.860042-1-kuba@kernel.org
Signed-off-by: Paolo Abeni

selftests: drv-net: psp: add tests for destroying devices

2025-09-30T13:17:22+00:00

Add tests for making sure device can disappear while associations
exist. This is netdevsim-only since destroying real devices is
more tricky.

Signed-off-by: Jakub Kicinski 
Signed-off-by: Daniel Zahka 
Link: https://patch.msgid.link/20250927225420.1443468-9-kuba@kernel.org
Reviewed-by: Willem de Bruijn 
Signed-off-by: Paolo Abeni

selftests: drv-net: psp: add association tests

2025-09-30T13:17:22+00:00

Add tests for exercising PSP associations for TCP sockets.

Signed-off-by: Jakub Kicinski 
Signed-off-by: Daniel Zahka 
Link: https://patch.msgid.link/20250927225420.1443468-6-kuba@kernel.org
Reviewed-by: Willem de Bruijn 
Signed-off-by: Paolo Abeni

selftests: drv-net: base device access API test

2025-09-30T13:17:21+00:00

Simple PSP test to getting info about PSP devices.

Signed-off-by: Jakub Kicinski 
Signed-off-by: Daniel Zahka 
Link: https://patch.msgid.link/20250927225420.1443468-3-kuba@kernel.org
Reviewed-by: Willem de Bruijn 
Signed-off-by: Paolo Abeni

selftests: drv-net: wait for carrier

2025-08-15T00:44:46+00:00

On fast machines the tests run in quick succession so even
when tests clean up after themselves the carrier may need
some time to come back.

Specifically in NIPA when ping.py runs right after netpoll_basic.py
the first ping command fails.

Since the context manager callbacks are now common NetDrvEpEnv
gets an ip link up call as well.

Reviewed-by: Joe Damato 
Link: https://patch.msgid.link/20250812142054.750282-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski

selftests: netconsole: Validate interface selection by MAC address

2025-08-14T00:28:27+00:00

Extend the existing netconsole cmdline selftest to also validate that
interface selection can be performed via MAC address.

The test now validates that netconsole works with both interface name
and MAC address, improving test coverage.

Suggested-by: Breno Leitao 
Reviewed-by: Breno Leitao 
Signed-off-by: Andre Carvalho 
Link: https://patch.msgid.link/20250812-netcons-cmdline-selftest-v2-1-8099fb7afa9e@gmail.com
Signed-off-by: Jakub Kicinski

selftests: net: Skip test if IPv6 is not configured

2025-07-25T18:25:34+00:00

Extend the `check_for_dependencies()` function in `lib_netcons.sh` to check
whether IPv6 is enabled by verifying the existence of
`/proc/net/if_inet6`. Having IPv6 is a now a dependency of netconsole
tests. If the file does not exist, the script will skip the test with an
appropriate message suggesting to verify if `CONFIG_IPV6` is enabled.

This prevents the test to misbehave if IPv6 is not configured.

Signed-off-by: Breno Leitao 
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250723-netcons_test_ipv6-v1-1-41c9092f93f9@debian.org
Signed-off-by: Jakub Kicinski