linux/tools/testing/selftests/drivers/net/lib, branch master

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

2026-04-14T19:04:00Z

Merge in late fixes in preparation for the net-next PR. Conflicts: include/net/sch_generic.h a6bd339dbb351 ("net_sched: fix skb memory leak in deferred qdisc drops") ff2998f29f390 ("net: sched: introduce qdisc-specific drop reason tracing") https://lore.kernel.org/adz0iX85FHMz0HdO@sirena.org.uk drivers/net/ethernet/airoha/airoha_eth.c 1acdfbdb516b ("net: airoha: Fix VIP configuration for AN7583 SoC") bf3471e6e6c0 ("net: airoha: Make flow control source port mapping dependent on nbq parameter") Adjacent changes: drivers/net/ethernet/airoha/airoha_ppe.c f44218cd5e6a ("net: airoha: Reset PPE cpu port configuration in airoha_ppe_hw_init()") 7da62262ec96 ("inet: add ip_local_port_step_width sysctl to improve port usage distribution") Signed-off-by: Jakub Kicinski

selftests: Add MACsec VLAN propagation traffic test

2026-04-10T02:38:42Z

Add VLAN filter propagation tests through offloaded MACsec devices via actual traffic. The tests create MACsec tunnels with matching SAs on both endpoints, stack VLANs on top, and verify connectivity with ping. Covered: - Offloaded MACsec with VLAN (filters propagate to HW) - Software MACsec with VLAN (no HW filter propagation) - Offload on/off toggle and verifying traffic still works On netdevsim this makes use of the VLAN filter debugfs file to actually validate that filters are applied/removed correctly. On real hardware the traffic should validate actual VLAN filter propagation. Signed-off-by: Cosmin Ratiu Reviewed-by: Sabrina Dubroca Link: https://patch.msgid.link/20260408115240.1636047-4-cratiu@nvidia.com Signed-off-by: Jakub Kicinski

selftests: drv-net: adjust to socat changes

2026-04-08T01:54:03Z

socat v1.8.1.0 now defaults to shut-null, it sends an extra 0-length UDP packet when sender disconnects. This breaks our tests which expect the exact packet sequence. Add shut-none which was the old default where necessary. Acked-by: Stanislav Fomichev Reviewed-by: Joe Damato Reviewed-by: Breno Leitao Link: https://patch.msgid.link/20260404230103.2719103-1-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: net: move common xdp.py functions into lib

2026-03-29T21:09:08Z

This moves a few functions which can be useful to other python programs that manipulate XDP programs. This also refactors xdp.py to use the refactored functions. Signed-off-by: Chris J Arges Link: https://patch.msgid.link/20260325201139.2501937-6-carges@cloudflare.com Signed-off-by: Jakub Kicinski

selftests: drv-net: give HW stats sync time extra 25% of margin

2026-03-19T23:57:28Z

There are transient failures for devices which update stats periodically, especially if it's the FW DMA'ing the stats rather than host periodic work querying the FW. Wait 25% longer than strictly necessary. For devices which don't report stats-block-usecs we retain 25 msec as the default wait time (0.025sec == 20,000usec * 1.25). Reviewed-by: Petr Machata Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20260318033819.1469350-3-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests/net: Add env for container based tests

2026-03-06T21:11:17Z

Add an env NetDrvContEnv for container based selftests. This automates the setup of a netns, netkit pair with one inside the netns, and a BPF program that forwards skbs from the NETIF host inside the container. Currently only netkit is used, but other virtual netdevs e.g. veth can be used too. Expect netkit container datapath selftests to have a publicly routable IP prefix to assign to netkit in a container, such that packets will land on eth0. The BPF skb forward program will then forward such packets from the host netns to the container netns. Signed-off-by: David Wei Signed-off-by: Daniel Borkmann Link: https://patch.msgid.link/20260305181803.2912736-4-dw@davidwei.uk Signed-off-by: Jakub Kicinski

selftests/net: Export Netlink class via lib.py

2026-03-06T21:11:17Z

Making rtnl newlink calls requires constants defined in Netlink class in pyynl. Export it. Signed-off-by: David Wei Link: https://patch.msgid.link/20260305181803.2912736-3-dw@davidwei.uk Signed-off-by: Jakub Kicinski

selftests: net: py: Add rand_ports helper method

2026-02-26T03:42:02Z

Certain tests need a unique set of ports. Successive calls to the existing rand_port method may return a duplicate port, resulting in test flakiness. The new helper keeps sockets open while building a list of ephemeral ports, thus the kernel enforces their uniqueness. Signed-off-by: Dimitri Daskalakis Link: https://patch.msgid.link/20260224224659.1507082-2-dimitri.daskalakis1@gmail.com Signed-off-by: Jakub Kicinski

selftests: netconsole: Increase port listening timeout

2026-02-13T20:22:36Z

wait_for_port() can wait up to 2 seconds with the sleep and the polling in wait_local_port_listen() combined. So, in netcons_basic.sh, the socat process could die before the test writes to the netconsole. Increase the timeout to 3 seconds to make netcons_basic.sh pass consistently. Fixes: 3dc6c76391cb ("selftests: net: Add IPv6 support to netconsole basic tests") Signed-off-by: Pin-yen Lin Reviewed-by: Simon Horman Link: https://patch.msgid.link/20260210005939.3230550-1-treapking@google.com Signed-off-by: Jakub Kicinski

selftests: netconsole: validate target resume

2026-01-22T03:09:12Z

Introduce a new netconsole selftest to validate that netconsole is able to resume a deactivated target when the low level interface comes back. The test setups the network using netdevsim, creates a netconsole target and then remove/add netdevsim in order to bring the same interfaces back. Afterwards, the test validates that the target works as expected. Targets are created via cmdline parameters to the module to ensure that we are able to resume targets that were bound by mac and interface name. Reviewed-by: Breno Leitao Signed-off-by: Andre Carvalho Tested-by: Breno Leitao Link: https://patch.msgid.link/20260118-netcons-retrigger-v11-7-4de36aebcf48@gmail.com Signed-off-by: Jakub Kicinski