kernel/tools/testing/selftests/bpf/test_xsk.sh, branch linux-rolling-stable

selftests/bpf: Upon failures, exit with code 1 in test_xsk.sh

2025-11-13T20:36:48Z

[ Upstream commit 2a912258c90e895363c0ffc0be8a47f112ab67b7 ] Currently, even if some subtests fails, the end result will still yield "ok 1 selftests: bpf: test_xsk.sh". Fix it by exiting with 1 if there are any failures. Signed-off-by: Ricardo B. Marlière Signed-off-by: Andrii Nakryiko Acked-by: Magnus Karlsson Link: https://lore.kernel.org/bpf/20250828-selftests-bpf-test_xsk_ret-v1-1-e6656c01f397@suse.com Signed-off-by: Sasha Levin

selftests/xsk: display command line options with -h

2023-09-14T16:47:56Z

Add the -h option to display all available command line options available for test_xsk.sh and xskxceiver. Signed-off-by: Magnus Karlsson Link: https://lore.kernel.org/r/20230914084900.492-11-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov

selftests/xsk: add option to run single test

2023-09-14T16:47:56Z

Add a command line option to be able to run a single test. This option (-t) takes a number from the list of tests available with the "-l" option. Here are two examples: Run test number 2, the "receive single packet" test in all available modes: ./test_xsk.sh -t 2 Run test number 21, the metadata copy test in skb mode only ./test_xsh.sh -t 21 -m skb Signed-off-by: Magnus Karlsson Link: https://lore.kernel.org/r/20230914084900.492-8-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov

selftests/xsk: add option that lists all tests

2023-09-14T16:47:55Z

Add a command line option (-l) that lists all the tests. The number before the test will be used in the next commit for specifying a single test to run. Here is an example of the output: Tests: 0: SEND_RECEIVE 1: SEND_RECEIVE_2K_FRAME 2: SEND_RECEIVE_SINGLE_PKT 3: POLL_RX 4: POLL_TX 5: POLL_RXQ_FULL 6: POLL_TXQ_FULL 7: SEND_RECEIVE_UNALIGNED : : Signed-off-by: Magnus Karlsson Link: https://lore.kernel.org/r/20230914084900.492-7-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov

selftests/xsk: add option to only run tests in a single mode

2023-09-14T16:47:55Z

Add an option -m on the command line that allows the user to run the tests in a single mode instead of all of them. Valid modes are skb, drv, and zc (zero-copy). An example: To run test suite in drv mode only: ./test_xsk.sh -m drv Signed-off-by: Magnus Karlsson Link: https://lore.kernel.org/r/20230914084900.492-4-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov

selftests/xsk: reset NIC settings to default after running test suite

2023-07-19T16:56:51Z

Currently, when running ZC test suite, after finishing first run of test suite and then switching to busy-poll tests within xskxceiver, such errors are observed: libbpf: Kernel error message: ice: MTU is too large for linear frames and XDP prog does not support frags 1..26 libbpf: Kernel error message: Native and generic XDP can't be active at the same time Error attaching XDP program not ok 1 [xskxceiver.c:xsk_reattach_xdp:1568]: ERROR: 17/"File exists" this is because test suite ends with 9k MTU and native xdp program being loaded. Busy-poll tests start non-multi-buffer tests for generic mode. To fix this, let us introduce bash function that will reset NIC settings to default (e.g. 1500 MTU and no xdp progs loaded) so that test suite can continue without interrupts. It also means that after busy-poll tests NIC will have those default settings, whereas right now it is left with 9k MTU and xdp prog loaded in native mode. Signed-off-by: Maciej Fijalkowski Link: https://lore.kernel.org/r/20230719132421.584801-25-maciej.fijalkowski@intel.com Signed-off-by: Alexei Starovoitov

selftests/xsk: dump packet at error

2023-05-17T05:31:51Z

Dump the content of the packet when a test finds that packets are received out of order, the length is wrong, or some other packet error. Use the already existing pkt_dump function for this and call it when the above errors are detected. Get rid of the command line option for dumping packets as it is not useful to print out thousands of good packets followed by the faulty one you would like to see. Signed-off-by: Magnus Karlsson Link: https://lore.kernel.org/r/20230516103109.3066-5-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov

selftests: xsk: Disable IPv6 on VETH1

2023-04-05T19:22:59Z

This change fixes flakiness in the BIDIRECTIONAL test: # [is_pkt_valid] expected length [60], got length [90] not ok 1 FAIL: SKB BUSY-POLL BIDIRECTIONAL When IPv6 is enabled, the interface will periodically send MLDv1 and MLDv2 packets. These packets can cause the BIDIRECTIONAL test to fail since it uses VETH0 for RX. For other tests, this was not a problem since they only receive on VETH1 and IPv6 was already disabled on VETH0. Fixes: a89052572ebb ("selftests/bpf: Xsk selftests framework") Signed-off-by: Kal Conley Link: https://lore.kernel.org/r/20230405082905.6303-1-kal.conley@dectris.com Signed-off-by: Martin KaFai Lau

selftests/xsk: remove namespaces

2023-01-12T02:16:52Z

Remove the namespaces used as they fill no function. This will simplify the code for speeding up the tests in the following commits. Signed-off-by: Magnus Karlsson Acked-by: Maciej Fijalkowski Link: https://lore.kernel.org/r/20230111093526.11682-9-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov

selftests/xsk: add debug option for creating netdevs

2023-01-12T02:16:51Z

Add a new option to the test_xsk.sh script that only creates the two veth netdevs and the extra namespace, then exits without running any tests. The failed test can then be executed in the debugger without having to create the netdevs and namespace manually. For ease-of-use, the veth netdevs to use are printed so they can be copied into the debugger. Here is an example how to use it: > sudo ./test_xsk.sh -d veth10 veth11 > gdb xskxceiver In gdb: run -i veth10 -i veth11 And now the test cases can be debugged with gdb. If you want to debug the test suite on a real NIC in loopback mode, there is no need to use this feature as you already know the netdev of your NIC. Signed-off-by: Magnus Karlsson Acked-by: Maciej Fijalkowski Link: https://lore.kernel.org/r/20230111093526.11682-7-magnus.karlsson@gmail.com Signed-off-by: Alexei Starovoitov