wireguard-linux/tools/testing/selftests/drivers, branch stable

selftest: netcons: add test for netconsole over bonded interfaces

2025-11-11T02:34:44Z

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: create a torture test

2025-11-11T02:34:44Z

Create a netconsole test that puts a lot of pressure on the netconsole list manipulation. Do it by creating dynamic targets and deleting targets while messages are being sent. Also put interface down while the messages are being sent, as creating parallel targets. The code launches three background jobs on distinct schedules: * Toggle netcons target every 30 iterations * create and delete random_target every 50 iterations * toggle iface every 70 iterations This creates multiple concurrency sources that interact with netconsole states. This is good practice to simulate stress, and exercise netpoll and netconsole locks. This test already found an issue as reported in [1] Link: https://lore.kernel.org/all/20250901-netpoll_memleak-v1-1-34a181977dfc@debian.org/ [1] Signed-off-by: Breno Leitao Reviewed-by: Andre Carvalho Reviewed-by: Simon Horman Link: https://patch.msgid.link/20251107-netconsole_torture-v10-3-749227b55f63@debian.org Signed-off-by: Jakub Kicinski

selftest: netcons: refactor target creation

2025-11-11T02:34:44Z

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: netdevsim: Fix ethtool-coalesce.sh fail by installing ethtool-common.sh

2025-11-01T00:41:54Z

The script "ethtool-common.sh" is not installed in INSTALL_PATH, and triggers some errors when I try to run the test 'drivers/net/netdevsim/ethtool-coalesce.sh': TAP version 13 1..1 # timeout set to 600 # selftests: drivers/net/netdevsim: ethtool-coalesce.sh # ./ethtool-coalesce.sh: line 4: ethtool-common.sh: No such file or directory # ./ethtool-coalesce.sh: line 25: make_netdev: command not found # ethtool: bad command line argument(s) # ./ethtool-coalesce.sh: line 124: check: command not found # ./ethtool-coalesce.sh: line 126: [: -eq: unary operator expected # FAILED /0 checks not ok 1 selftests: drivers/net/netdevsim: ethtool-coalesce.sh # exit=1 Install this file to avoid this error. After this patch: TAP version 13 1..1 # timeout set to 600 # selftests: drivers/net/netdevsim: ethtool-coalesce.sh # PASSED all 22 checks ok 1 selftests: drivers/net/netdevsim: ethtool-coalesce.sh Fixes: fbb8531e58bd ("selftests: extract common functions in ethtool-common.sh") Signed-off-by: Wang Liang Link: https://patch.msgid.link/20251030040340.3258110-1-wangliang74@huawei.com Signed-off-by: Jakub Kicinski

selftests: drv-net: update remaining Python init files

2025-10-12T18:03:53Z

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: pp_alloc_fail: add necessary optoins to config

2025-10-09T09:10:02Z

Add kernel config for error injection as needed by pp_alloc_fail.py Reviewed-by: Simon Horman Fixes: 9da271f825e4 ("selftests: drv-net-hw: add test for memory allocation failures with page pool") Signed-off-by: Jakub Kicinski Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20251007232653.2099376-10-kuba@kernel.org Signed-off-by: Paolo Abeni

selftests: drv-net: pp_alloc_fail: lower traffic expectations

2025-10-09T09:10:02Z

Lower the expected level of traffic in the pp_alloc_fail test and calculate failure counter thresholds based on the traffic rather than using a fixed constant. We only have "QEMU HW" in NIPA right now, and the test (due to debug dependencies) only works on debug kernels in the first place. We need some place for it to pass otherwise it seems to be bit rotting. So lower the traffic threshold so that it passes on QEMU and with a debug kernel... Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20251007232653.2099376-9-kuba@kernel.org Signed-off-by: Paolo Abeni

selftests: drv-net: fix linter warnings in pp_alloc_fail

2025-10-09T09:10:02Z

Fix linter warnings, it's a bit hard to check for new ones otherwise. W0311: Bad indentation. Found 16 spaces, expected 12 (bad-indentation) C0114: Missing module docstring (missing-module-docstring) W1514: Using open without explicitly specifying an encoding (unspecified-encoding) C0116: Missing function or method docstring (missing-function-docstring) Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20251007232653.2099376-8-kuba@kernel.org Signed-off-by: Paolo Abeni

selftests: drv-net: xdp: add test for interface level qstats

2025-10-09T09:10:02Z

Send a non-trivial number of packets and make sure that they are counted correctly in qstats. Per qstats specification XDP is the first layer of the stack so we should see Rx and Tx counters go up for packets which went thru XDP. Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20251007232653.2099376-6-kuba@kernel.org Signed-off-by: Paolo Abeni

selftests: drv-net: xdp: rename netnl to ethnl

2025-10-09T09:10:02Z

Test uses "netnl" for the ethtool family which is quite confusing (one would expect netdev family would use this name). No functional changes. Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski Reviewed-by: Jacob Keller Link: https://patch.msgid.link/20251007232653.2099376-5-kuba@kernel.org Signed-off-by: Paolo Abeni