kernel/linux.git/tools/testing/selftests/drivers/net/queues.py, branch v6.18.22

selftests: net: move xdp_helper to net/lib

2025-04-28T22:49:10+00:00

Move xdp_helper to net/lib to make it easier for other selftests to use the helper. Signed-off-by: Bui Quang Minh Acked-by: Michael S. Tsirkin Link: https://patch.msgid.link/20250425071018.36078-2-minhquangbui99@gmail.com Signed-off-by: Jakub Kicinski

selftests: drv-net: replace the rpath helper with Path objects

2025-03-31T23:44:25+00:00

The single letter + "path" helpers do not have many fans (see Link). Use a Path object with a better name. test_dir is the replacement for rpath(), net_lib_dir is a new path of the $ksft/net/lib directory. The Path() class overloads the "/" operator and can be cast to string automatically, so to get a path to a file tests can do: path = env.test_dir / "binary" Link: https://lore.kernel.org/CA+FuTSemTNVZ5MxXkq8T9P=DYm=nSXcJnL7CJBPZNAT_9UFisQ@mail.gmail.com Reviewed-by: Willem de Bruijn Link: https://patch.msgid.link/20250327222315.1098596-2-kuba@kernel.org Signed-off-by: Jakub Kicinski

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

2025-02-27T18:20:58+00:00

Cross-merge networking fixes after downstream PR (net-6.14-rc5). Conflicts: drivers/net/ethernet/cadence/macb_main.c fa52f15c745c ("net: cadence: macb: Synchronize stats calculations") 75696dd0fd72 ("net: cadence: macb: Convert to get_stats64") https://lore.kernel.org/20250224125848.68ee63e5@canb.auug.org.au Adjacent changes: drivers/net/ethernet/intel/ice/ice_sriov.c 79990cf5e7ad ("ice: Fix deinitializing VF in error path") a203163274a4 ("ice: simplify VF MSI-X managing") net/ipv4/tcp.c 18912c520674 ("tcp: devmem: don't write truncated dmabuf CMSGs to userspace") 297d389e9e5b ("net: prefix devmem specific helpers") net/mptcp/subflow.c 8668860b0ad3 ("mptcp: reset when MPTCP opts are dropped after join") c3349a22c200 ("mptcp: consolidate subflow cleanup") Signed-off-by: Jakub Kicinski

selftests: drv-net: Check if combined-count exists

2025-02-27T15:30:32+00:00

Some drivers, like tg3, do not set combined-count: $ ethtool -l enp4s0f1 Channel parameters for enp4s0f1: Pre-set maximums: RX: 4 TX: 4 Other: n/a Combined: n/a Current hardware settings: RX: 4 TX: 1 Other: n/a Combined: n/a In the case where combined-count is not set, the ethtool netlink code in the kernel elides the value and the code in the test: netnl.channels_get(...) With a tg3 device, the returned dictionary looks like: {'header': {'dev-index': 3, 'dev-name': 'enp4s0f1'}, 'rx-max': 4, 'rx-count': 4, 'tx-max': 4, 'tx-count': 1} Note that the key 'combined-count' is missing. As a result of this missing key the test raises an exception: # Exception| if channels['combined-count'] == 0: # Exception| ~~~~~~~~^^^^^^^^^^^^^^^^^^ # Exception| KeyError: 'combined-count' Change the test to check if 'combined-count' is a key in the dictionary first and if not assume that this means the driver has separate RX and TX queues. With this change, the test now passes successfully on tg3 and mlx5 (which does have a 'combined-count'). Fixes: 1cf270424218 ("net: selftest: add test for netdev netlink queue-get API") Signed-off-by: Joe Damato Reviewed-by: David Wei Link: https://patch.msgid.link/20250226181957.212189-1-jdamato@fastly.com Signed-off-by: Jakub Kicinski

selftests: drv-net: rename queues check_xdp to check_xsk

2025-02-21T01:58:25+00:00

The test is for AF_XDP, we refer to AF_XDP as XSK. Acked-by: Stanislav Fomichev Reviewed-by: Joe Damato Tested-by: Joe Damato Link: https://patch.msgid.link/20250219234956.520599-8-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: improve the use of ksft helpers in XSK queue test

2025-02-21T01:58:25+00:00

Avoid exceptions when xsk attr is not present, and add a proper ksft helper for "not in" condition. Acked-by: Stanislav Fomichev Reviewed-by: Joe Damato Tested-by: Kurt Kanzenbach Tested-by: Joe Damato Link: https://patch.msgid.link/20250219234956.520599-7-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: add a way to wait for a local process

2025-02-21T01:58:25+00:00

We use wait_port_listen() extensively to wait for a process we spawned to be ready. Not all processes will open listening sockets. Add a method of explicitly waiting for a child to be ready. Pass a FD to the spawned process and wait for it to write a message to us. FD number is passed via KSFT_READY_FD env variable. Similarly use KSFT_WAIT_FD to let the child process for a sign that we are done and child should exit. Sending a signal to a child with shell=True can get tricky. Make use of this method in the queues test to make it less flaky. Acked-by: Stanislav Fomichev Acked-by: Joe Damato Tested-by: Joe Damato Link: https://patch.msgid.link/20250219234956.520599-6-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: probe for AF_XDP sockets more explicitly

2025-02-21T01:58:25+00:00

Separate the support check from socket binding for easier refactoring. Use: ./helper - - just to probe if we can open the socket. Acked-by: Stanislav Fomichev Reviewed-by: Joe Damato Tested-by: Joe Damato Link: https://patch.msgid.link/20250219234956.520599-5-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: use cfg.rpath() in netlink xsk attr test

2025-02-21T01:58:25+00:00

The cfg.rpath() helper was been recently added to make formatting paths for helper binaries easier. Acked-by: Stanislav Fomichev Reviewed-by: Joe Damato Tested-by: Joe Damato Link: https://patch.msgid.link/20250219234956.520599-3-kuba@kernel.org Signed-off-by: Jakub Kicinski

selftests: drv-net: Test queue xsk attribute

2025-02-18T00:46:03+00:00

Test that queues which are used for AF_XDP have the xsk nest attribute. The attribute is currently empty, but its existence means the AF_XDP is being used for the queue. Enable CONFIG_XDP_SOCKETS for selftests/drivers/net tests, as well. Signed-off-by: Joe Damato Suggested-by: Jakub Kicinski Link: https://patch.msgid.link/20250214211255.14194-4-jdamato@fastly.com Signed-off-by: Jakub Kicinski