linux/tools/testing/selftests/drivers/net/netdevsim, branch v6.17

selftests: netdevsim: Xfail nexthop test on slow machines

2025-08-05T23:11:03Z

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

2025-07-24T00:08:56Z

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

2025-07-02T22:39:05Z

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

2025-06-19T20:00:24Z

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

netdevsim: remove udp_ports_sleep

2025-06-19T01:53:51Z

Now that there is only one path in udp_tunnel, there is no need to have udp_ports_sleep knob. Remove it and adjust the test. Cc: Michael Chan Reviewed-by: Aleksandr Loktionov Signed-off-by: Stanislav Fomichev Link: https://patch.msgid.link/20250616162117.287806-6-stfomichev@gmail.com Signed-off-by: Jakub Kicinski

selftests: netdevsim: improve lib.sh include in peer.sh

2025-06-19T01:30:51Z

Fix the peer.sh test to run from INSTALL_PATH. Signed-off-by: David Wei Link: https://patch.msgid.link/20250617212102.175711-2-dw@davidwei.uk Signed-off-by: Jakub Kicinski

selftests: net: move wait_local_port_listen to lib.sh

2025-05-28T00:31:42Z

The function wait_local_port_listen() is the only function defined in net_helper.sh. Since some tests source both lib.sh and net_helper.sh, we can simplify the setup by moving wait_local_port_listen() to lib.sh. With this change, net_helper.sh becomes redundant and can be removed. Signed-off-by: Hangbin Liu Reviewed-by: Matthieu Baerts (NGI0) Link: https://patch.msgid.link/20250526014600.9128-1-liuhangbin@gmail.com Signed-off-by: Jakub Kicinski

net: netdevsim: try to close UDP port harness races

2025-01-27T22:24:34Z

syzbot discovered that we remove the debugfs files after we free the netdev. Try to clean up the relevant dir while the device is still around. Reported-by: syzbot+2e5de9e3ab986b71d2bf@syzkaller.appspotmail.com Fixes: 424be63ad831 ("netdevsim: add UDP tunnel port offload support") Reviewed-by: Michal Swiatkowski Link: https://patch.msgid.link/20250122224503.762705-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: net: Adapt ethtool mq tests to fix in qdisc graft

2025-01-15T09:28:51Z

Because of patch[1] the graft behaviour changed So the command: tcq replace parent 100:1 handle 204: Is no longer valid and will not delete 100:4 added by command: tcq replace parent 100:4 handle 204: pfifo_fast So to maintain the original behaviour, this patch manually deletes 100:4 and grafts 100:1 Note: This change will also work fine without [1] [1] https://lore.kernel.org/netdev/20250111151455.75480-1-jhs@mojatatu.com/T/#u Signed-off-by: Victor Nogueira Reviewed-by: Jamal Hadi Salim Signed-off-by: David S. Miller

selftests: net: lib: Add kill_process

2024-11-16T00:39:19Z

A number of selftests run processes in the background and need to kill them afterwards. Instead for everyone to open-code the kill / wait / redirect mantra, add a helper in net/lib.sh. Convert existing open-code sites. Signed-off-by: Petr Machata Acked-by: Shuah Khan Reviewed-by: Amit Cohen Link: https://patch.msgid.link/a9db102067d741c118f0bd93b10c75e2a34665ea.1731589511.git.petrm@nvidia.com Signed-off-by: Jakub Kicinski