linux/tools/testing/selftests/drivers, branch v6.15

tests/ncdevmem: Fix double-free of queue array

2025-05-09T22:05:07Z

netdev_bind_rx takes ownership of the queue array passed as parameter and frees it, so a queue array buffer cannot be reused across multiple netdev_bind_rx calls. This commit fixes that by always passing in a newly created queue array to all netdev_bind_rx calls in ncdevmem. Fixes: 85585b4bc8d8 ("selftests: add ncdevmem, netcat for devmem TCP") Signed-off-by: Cosmin Ratiu Acked-by: Stanislav Fomichev Reviewed-by: Joe Damato Reviewed-by: Mina Almasry Link: https://patch.msgid.link/20250508084434.1933069-1-cratiu@nvidia.com Signed-off-by: Jakub Kicinski

selftests: drv: net: add version indicator

2025-05-06T01:17:16Z

Currently, the test result does not differentiate between the cases when either one of the address families are configured or if both the address families are configured. Ideally, the result should report if a particular case was skipped. ./drivers/net/ping.py TAP version 13 1..7 ok 1 ping.test_default_v4 # SKIP Test requires IPv4 connectivity ok 2 ping.test_default_v6 ok 3 ping.test_xdp_generic_sb ok 4 ping.test_xdp_generic_mb ok 5 ping.test_xdp_native_sb ok 6 ping.test_xdp_native_mb ok 7 ping.test_xdp_offload # SKIP device does not support offloaded XDP Totals: pass:5 fail:0 xfail:0 xpass:0 skip:2 error:0 Fixes: 75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py") Signed-off-by: Mohsin Bashir Reviewed-by: David Wei Link: https://patch.msgid.link/20250503013518.1722913-4-mohsin.bashr@gmail.com Signed-off-by: Jakub Kicinski

selftests: drv: net: avoid skipping tests

2025-05-06T01:17:16Z

On a system with either of the ipv4 or ipv6 information missing, tests are currently skipped. Ideally, the test should run as long as at least one address family is present. This patch make test run whenever possible. Before: ./drivers/net/ping.py TAP version 13 1..6 ok 1 ping.test_default # SKIP Test requires IPv4 connectivity ok 2 ping.test_xdp_generic_sb # SKIP Test requires IPv4 connectivity ok 3 ping.test_xdp_generic_mb # SKIP Test requires IPv4 connectivity ok 4 ping.test_xdp_native_sb # SKIP Test requires IPv4 connectivity ok 5 ping.test_xdp_native_mb # SKIP Test requires IPv4 connectivity ok 6 ping.test_xdp_offload # SKIP device does not support offloaded XDP Totals: pass:0 fail:0 xfail:0 xpass:0 skip:6 error:0 After: ./drivers/net/ping.py TAP version 13 1..6 ok 1 ping.test_default ok 2 ping.test_xdp_generic_sb ok 3 ping.test_xdp_generic_mb ok 4 ping.test_xdp_native_sb ok 5 ping.test_xdp_native_mb ok 6 ping.test_xdp_offload # SKIP device does not support offloaded XDP Totals: pass:5 fail:0 xfail:0 xpass:0 skip:1 error:0 Fixes: 75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py") Signed-off-by: Mohsin Bashir Link: https://patch.msgid.link/20250503013518.1722913-3-mohsin.bashr@gmail.com Signed-off-by: Jakub Kicinski

selftests: drv: net: fix test failure on ipv6 sys

2025-05-06T01:17:15Z

The `get_interface_info` call has ip version hard-coded which leads to failures on an IPV6 system. The NetDrvEnv class already gathers information about remote interface, so instead of fixing the local implementation switch to using cfg.remote_ifname. Before: ./drivers/net/ping.py Traceback (most recent call last): File "/new_tests/./drivers/net/ping.py", line 217, in main() File "/new_tests/./drivers/net/ping.py", line 204, in main get_interface_info(cfg) File "/new_tests/./drivers/net/ping.py", line 128, in get_interface_info raise KsftFailEx('Can not get remote interface') net.lib.py.ksft.KsftFailEx: Can not get remote interface After: ./drivers/net/ping.py TAP version 13 1..6 ok 1 ping.test_default # SKIP Test requires IPv4 connectivity ok 2 ping.test_xdp_generic_sb # SKIP Test requires IPv4 connectivity ok 3 ping.test_xdp_generic_mb # SKIP Test requires IPv4 connectivity ok 4 ping.test_xdp_native_sb # SKIP Test requires IPv4 connectivity ok 5 ping.test_xdp_native_mb # SKIP Test requires IPv4 connectivity ok 6 ping.test_xdp_offload # SKIP device does not support offloaded XDP Totals: pass:0 fail:0 xfail:0 xpass:0 skip:6 error:0 Fixes: 75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py") Signed-off-by: Mohsin Bashir Reviewed-by: David Wei Link: https://patch.msgid.link/20250503013518.1722913-2-mohsin.bashr@gmail.com Signed-off-by: Jakub Kicinski

selftests: net: tc_taprio: new test

2025-04-29T21:44:34Z

Add a forwarding path test for tc-taprio, based on isochron. This is specifically intended for NICs with an offloaded data path (switchdev/DSA) and requires taprio 'flags 2'. Also, $h1 and $h2 must support hardware timestamping, and $h1 tc-etf offload, for isochron to work. Packets received by a switch while the egress port has a taprio schedule with an open gate for the traffic class must be sent right away. Packets received by the switch while the traffic class gate must be delayed until it opens. Packets received by the switch must be dropped if the gate for the traffic class never opens. Packets should pass if the maximum SDU for the traffic class allows it, and should be dropped otherwise. The schedule should auto-update itself if clock jumps take place while taprio is installed. Repeat most of the above tests after forcing two clock jumps, one backwards (in Jan 1970) and one back into the present. Symlink it from tools/testing/selftests/drivers/net/dsa, because usually DSA ports have the same MAC address, and we need STABLE_MAC_ADDRS=yes from its forwarding.config for the test to run successfully. Signed-off-by: Vladimir Oltean Link: https://patch.msgid.link/20250426144859.3128352-5-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski

selftests: net: tsn_lib: add window_size argument to isochron_do()

2025-04-29T21:44:34Z

Make out-of-band testing (send a packet when its traffic class gate is closed, expecting it to be delayed) more predictable by allowing the window size to be customized by isochron_do(). From man isochron-send, the window size alters the advance time (the delta between the transmission time of the packet, and its expected TX time when using SO_TXTIME or tc-taprio on the sender). In absence of the argument, isochron-send defaults to maximizing the advance time (making it equal to the cycle length). The default behavior is exactly what is problematic. An advance time that is too large will make packets intended to be out-of-band still be potentially in-band with an open gate from the schedule's previous cycle. We need to allow that advance time to be reduced. Perhaps a bit confusingly, isochron_do() has a shift_time argument currently, but that does not help here. The shift time shifts both the user space wakeup time and the expected TX time by equal amounts, it is unable of bringing them closer to one another. Set the window size properly for the Ocelot PSFP selftest as well. That used to work due to a very carefully chosen SHIFT_TIME_NS. I've re-tested that the test still works properly. Signed-off-by: Vladimir Oltean Link: https://patch.msgid.link/20250426144859.3128352-4-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski

selftests: net: tsn_lib: create common helper for counting received packets

2025-04-29T21:44:34Z

This snippet will be necessary for a future isochron-based test, so provide a simpler high-level interface for counting the received packets. Signed-off-by: Vladimir Oltean Link: https://patch.msgid.link/20250426144859.3128352-3-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski

io_uring/zcrx: enable tcp-data-split in selftest

2025-04-11T00:27:58Z

For bnxt when the agg ring is used then tcp-data-split is automatically reported to be enabled, but __net_mp_open_rxq() requires tcp-data-split to be explicitly enabled by the user. Enable tcp-data-split explicitly in io_uring zc rx selftest. Signed-off-by: David Wei Link: https://patch.msgid.link/20250409163153.2747918-1-dw@davidwei.uk Signed-off-by: Jakub Kicinski

selftests: drv-net: test random value for hds-thresh

2025-04-07T18:00:00Z

hds.py has been testing 0(set_hds_thresh_zero()), MAX(set_hds_thresh_max()), GT(set_hds_thresh_gt()) values for hds-thresh. However if a hds-thresh value was already 0, set_hds_thresh_zero() can't test properly. So, it tests random value first and then tests 0, MAX, GT values. Testing bnxt: TAP version 13 1..13 ok 1 hds.get_hds ok 2 hds.get_hds_thresh ok 3 hds.set_hds_disable # SKIP disabling of HDS not supported by the device ok 4 hds.set_hds_enable ok 5 hds.set_hds_thresh_random ok 6 hds.set_hds_thresh_zero ok 7 hds.set_hds_thresh_max ok 8 hds.set_hds_thresh_gt ok 9 hds.set_xdp ok 10 hds.enabled_set_xdp ok 11 hds.ioctl ok 12 hds.ioctl_set_xdp ok 13 hds.ioctl_enabled_set_xdp # Totals: pass:12 fail:0 xfail:0 xpass:0 skip:1 error:0 Testing lo: TAP version 13 1..13 ok 1 hds.get_hds # SKIP tcp-data-split not supported by device ok 2 hds.get_hds_thresh # SKIP hds-thresh not supported by device ok 3 hds.set_hds_disable # SKIP ring-set not supported by the device ok 4 hds.set_hds_enable # SKIP ring-set not supported by the device ok 5 hds.set_hds_thresh_random # SKIP hds-thresh not supported by device ok 6 hds.set_hds_thresh_zero # SKIP ring-set not supported by the device ok 7 hds.set_hds_thresh_max # SKIP hds-thresh not supported by device ok 8 hds.set_hds_thresh_gt # SKIP hds-thresh not supported by device ok 9 hds.set_xdp # SKIP tcp-data-split not supported by device ok 10 hds.enabled_set_xdp # SKIP tcp-data-split not supported by device ok 11 hds.ioctl # SKIP tcp-data-split not supported by device ok 12 hds.ioctl_set_xdp # SKIP tcp-data-split not supported by device ok 13 hds.ioctl_enabled_set_xdp # SKIP tcp-data-split not supported by device # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:13 error:0 Signed-off-by: Taehee Yoo Link: https://patch.msgid.link/20250404122126.1555648-3-ap420073@gmail.com Signed-off-by: Jakub Kicinski

io_uring/zcrx: fix selftests w/ updated netdev Python helpers

2025-04-03T22:45:30Z

Fix io_uring zero copy rx selftest with updated netdev Python helpers. Signed-off-by: David Wei Link: https://patch.msgid.link/20250402172414.895276-1-dw@davidwei.uk Signed-off-by: Jakub Kicinski