On Wed, Jul 13, 2022 at 4:15 AM Toke Høiland-Jørgensen <toke@xxxxxxxxxx> wrote:
>
> This adds selftests for both variants of the generic PIFO map type, and for
> the dequeue program type. The XDP test uses bpf_prog_run() to run an XDP
> program that puts packets into a PIFO map, and then adds tests that pull
> them back out again through bpf_prog_run() of a dequeue program, as well as
> by attaching a dequeue program to a veth device and scheduling transmission
> there.
>
> Signed-off-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
> ---
> .../selftests/bpf/prog_tests/pifo_map.c | 125 ++++++++++++++
> .../bpf/prog_tests/xdp_pifo_test_run.c | 154 ++++++++++++++++++
> tools/testing/selftests/bpf/progs/pifo_map.c | 54 ++++++
> .../selftests/bpf/progs/test_xdp_pifo.c | 110 +++++++++++++
> 4 files changed, 443 insertions(+)
> create mode 100644 tools/testing/selftests/bpf/prog_tests/pifo_map.c
> create mode 100644 tools/testing/selftests/bpf/prog_tests/xdp_pifo_test_run.c
> create mode 100644 tools/testing/selftests/bpf/progs/pifo_map.c
> create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_pifo.c
>
[...]
> +__u16 pkt_count = 0;
> +__u16 drop_above = 2;
> +
> +SEC("dequeue")
"dequeue" seems like a way too generic term, why not "xdp_dequeue" or
something like that? Isn't this XDP specific program?
> +void *dequeue_pifo(struct dequeue_ctx *ctx)
> +{
> + __u64 prio = 0, pkt_prio = 0;
> + void *data, *data_end;
> + struct xdp_md *pkt;
> + struct ethhdr *eth;
> +
[...]
