kernel/tools/testing/selftests/bpf/prog_tests/xdp_attach.c, branch linux-6.2.y

selftests/bpf: Store BPF object files with .bpf.o extension

2022-09-02T13:55:37Z

BPF object files are, in a way, the final artifact produced as part of the ahead-of-time compilation process. That makes them somewhat special compared to "regular" object files, which are a intermediate build artifacts that can typically be removed safely. As such, it can make sense to name them differently to make it easier to spot this difference at a glance. Among others, libbpf-bootstrap [0] has established the extension .bpf.o for BPF object files. It seems reasonable to follow this example and establish the same denomination for selftest build artifacts. To that end, this change adjusts the corresponding part of the build system and the test programs loading BPF object files to work with .bpf.o files. [0] https://github.com/libbpf/libbpf-bootstrap Suggested-by: Andrii Nakryiko Signed-off-by: Daniel Müller Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20220901222253.1199242-1-deso@posteo.net

selftests/bpf: Redo the switch to new libbpf XDP APIs

2022-02-03T15:32:25Z

Switch to using new bpf_xdp_*() APIs across all selftests. Take advantage of a more straightforward and user-friendly semantics of old_prog_fd (0 means "don't care") in few places. This is a redo of 544356524dd6 ("selftests/bpf: switch to new libbpf XDP APIs"), which was previously reverted to minimize conflicts during bpf and bpf-next tree merge. Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Reviewed-by: Quentin Monnet Link: https://lore.kernel.org/bpf/20220202225916.3313522-6-andrii@kernel.org

selftests/bpf: Use explicit bpf_prog_test_load() calls everywhere

2021-11-07T16:34:23Z

-Dbpf_prog_load_deprecated=bpf_prog_test_load trick is both ugly and breaks when deprecation goes into effect due to macro magic. Convert all the uses to explicit bpf_prog_test_load() calls which avoid deprecation errors and makes everything less magical. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Acked-by: Dave Marchevsky Link: https://lore.kernel.org/bpf/20211103220845.2676888-12-andrii@kernel.org

selfetest/bpf: Make some tests serial

2021-10-08T22:17:00Z

Change tests that often fails in parallel execution mode to serial. Signed-off-by: Yucong Sun Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20211006185619.364369-15-fallentree@fb.com

selftests/bpf: Check for correct program attach/detach in xdp_attach test

2020-04-15T11:26:08Z

David Ahern noticed that there was a bug in the EXPECTED_FD code so programs did not get detached properly when that parameter was supplied. This case was not included in the xdp_attach tests; so let's add it to be sure that such a bug does not sneak back in down. Fixes: 87854a0b57b3 ("selftests/bpf: Add tests for attaching XDP programs") Reported-by: David Ahern Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Daniel Borkmann Acked-by: Song Liu Link: https://lore.kernel.org/bpf/20200414145025.182163-2-toke@redhat.com

selftests/bpf: Add tests for attaching XDP programs

2020-03-28T21:24:41Z

This adds tests for the various replacement operations using IFLA_XDP_EXPECTED_FD. Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/158515700967.92963.15098921624731968356.stgit@toke.dk