kernel/linux.git/tools/testing/selftests/drivers/net/netdevsim, branch v6.19.11

selftests: netdevsim: add carrier state consistency test

2026-01-07T02:04:01+00:00

This commit adds a test case for netdevsim carrier state consistency. Specifically, the added test verifies the carrier state during the following operations: 1. Unlink two netdevsims 2. ifdown one netdevsim, then ifup again 3. Link the netdevsims again 4. ifdown one netdevsim, then ifup again These steps verifies that the carrier is UP iff two netdevsims are linked and ifuped. Signed-off-by: Yohei Kojima Link: https://patch.msgid.link/481e2729e53b6074ebfc0ad85764d8feb244de8c.1767624906.git.yk@y-koj.net Signed-off-by: Jakub Kicinski

selftest: netdevsim: test devlink default params

2025-11-21T03:01:23+00:00

Test querying default values and resetting to default values for netdevsim devlink params. This should cover the basic paths of interest: driverinit and non-driverinit cmodes, as well as bool and non-bool value type. Default param values of type bool are encoded with u8 netlink type as opposed to flag type, so that userspace can distinguish "not-present" from false. Signed-off-by: Daniel Zahka Link: https://patch.msgid.link/20251119025038.651131-7-daniel.zahka@gmail.com Signed-off-by: Jakub Kicinski

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-11-06T17:27:40+00:00

Cross-merge networking fixes after downstream PR (net-6.18-rc5). Conflicts: drivers/net/wireless/ath/ath12k/mac.c 9222582ec524 ("Revert "wifi: ath12k: Fix missing station power save configuration"") 6917e268c433 ("wifi: ath12k: Defer vdev bring-up until CSA finalize to avoid stale beacon") https://lore.kernel.org/11cece9f7e36c12efd732baa5718239b1bf8c950.camel@sipsolutions.net Adjacent changes: drivers/net/ethernet/intel/Kconfig b1d16f7c0063 ("libie: depend on DEBUG_FS when building LIBIE_FWLOG") 93f53db9f9dc ("ice: switch to Page Pool") Signed-off-by: Jakub Kicinski

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

2025-11-01T00:41:54+00:00

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: replace the nsim ring test with a drv-net one

2025-10-31T00:32:18+00:00

We are trying to move away from netdevsim-only tests and towards tests which can be run both against netdevsim and real drivers. Replace the simple bash script we have for checking ethtool -g/-G on netdevsim with a Python test tweaking those params as well as channel count. The new test is not exactly equivalent to the netdevsim one, but real drivers don't often support random ring sizes, let alone modifying max values via debugfs. Reviewed-by: Andrew Lunn Link: https://patch.msgid.link/20251029164930.2923448-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: net: unify the Makefile formats

2025-10-06T20:14:06+00:00

We get a significant number of conflicts between net and net-next because of selftests Makefile changes. People tend to append new test cases at the end of the Makefile when there's no clear sort order. Sort all networking selftests Makefiles, use the following format: VAR_NAME := \ entry1 \ entry2 \ entry3 \ # end of VAR_NAME Some Makefiles are already pretty close to this. Acked-by: Antonio Quartulli Acked-by: Matthieu Baerts (NGI0) Acked-by: Allison Henderson Reviewed-by: Petr Machata Link: https://patch.msgid.link/20251003210127.1021918-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: netdevsim: Xfail nexthop test on slow machines

2025-08-05T23:11:03+00:00

A lot of test cases in the file are related to the idle and unbalanced timers of resilient nexthop groups and these tests are reported to be flaky on slow machines running debug kernels. Rather than marking a lot of individual tests with xfail_on_slow(), simply mark all the tests. Note that the test is stable on non-debug machines and that with debug kernels we are mainly interested in the output of various sanitizers in order to determine pass / fail. Before: # make -C tools/testing/selftests KSFT_MACHINE_SLOW=yes \ TARGETS=drivers/net/netdevsim TEST_PROGS=nexthop.sh \ TEST_GEN_PROGS="" run_tests [...] # TEST: Bucket migration after idle timer (with delete) [FAIL] # Group expected to still be unbalanced [...] not ok 1 selftests: drivers/net/netdevsim: nexthop.sh # exit=1 After: # make -C tools/testing/selftests KSFT_MACHINE_SLOW=yes \ TARGETS=drivers/net/netdevsim TEST_PROGS=nexthop.sh \ TEST_GEN_PROGS="" run_tests [...] # TEST: Bucket migration after idle timer (with delete) [XFAIL] # Group expected to still be unbalanced [...] ok 1 selftests: drivers/net/netdevsim: nexthop.sh Reported-by: Jakub Kicinski Closes: https://lore.kernel.org/netdev/20250729160609.02e0f157@kernel.org/ Reviewed-by: Petr Machata Signed-off-by: Ido Schimmel Link: https://patch.msgid.link/20250804114320.193203-1-idosch@nvidia.com Signed-off-by: Jakub Kicinski

netdevsim: add fw_update_flash_chunk_time_ms debugfs knobs

2025-07-24T00:08:56+00:00

Netdevsim emulates firmware update and it takes 5 seconds to complete. For some use cases, this is too long and unnecessary. Allow user to configure the time by exposing debugfs a knob to set chunk time. Signed-off-by: Jiri Pirko Reviewed-by: Jakub Kicinski Link: https://patch.msgid.link/20250722091945.79506-1-jiri@resnulli.us Signed-off-by: Jakub Kicinski

selftest: netdevsim: Add devlink rate tc-bw test

2025-07-02T22:39:05+00:00

Test verifies that netdevsim correctly implements devlink ops callbacks that set tc-bw on leaf or node rate object. Signed-off-by: Carolina Jubran Reviewed-by: Cosmin Ratiu Signed-off-by: Tariq Toukan Signed-off-by: Mark Bloch Link: https://patch.msgid.link/20250629142138.361537-4-mbloch@nvidia.com Signed-off-by: Jakub Kicinski

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-06-19T20:00:24+00:00

Cross-merge networking fixes after downstream PR (net-6.16-rc3). No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski