kernel/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c, branch linux-6.2.y

selftests/bpf: Test libbpf's ringbuf size fix up logic

2022-05-09T15:15:32Z

Make sure we always excercise libbpf's ringbuf map size adjustment logic by specifying non-zero size that's definitely not a page size multiple. Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20220509004148.1801791-10-andrii@kernel.org

selftests/bpf: ringbuf_multi: Test bpf_map__set_inner_map_fd

2021-04-09T06:54:48Z

Test map__set_inner_map_fd() interaction with map-in-map initialization. Use hashmap of maps just to make it different to existing array of maps. Signed-off-by: Yauheni Kaliuta Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210408061310.95877-9-yauheni.kaliuta@redhat.com

selftests/bpf: ringbuf_multi: Use runtime page size

2021-04-09T06:54:48Z

Set bpf table sizes dynamically according to the runtime page size value. Do not switch to ASSERT macros, keep CHECK, for consistency with the rest of the test. Can be a separate cleanup patch. Signed-off-by: Yauheni Kaliuta Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/bpf/20210408061310.95877-8-yauheni.kaliuta@redhat.com

selftests/bpf: Add BPF ringbuf selftests

2020-06-01T21:38:22Z

Both singleton BPF ringbuf and BPF ringbuf with map-in-map use cases are tested. Also reserve+submit/discards and output variants of API are validated. Signed-off-by: Andrii Nakryiko Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20200529075424.3139988-4-andriin@fb.com Signed-off-by: Alexei Starovoitov