On 07/03, Larysa Zaremba wrote:
> Verify, whether kfunc in xdp_metadata test correctly returns checksum level
> of zero.
>
> Signed-off-by: Larysa Zaremba <larysa.zaremba@xxxxxxxxx>
Acked-by: Stanislav Fomichev <sdf@xxxxxxxxxx>
> ---
> tools/testing/selftests/bpf/prog_tests/xdp_metadata.c | 3 +++
> tools/testing/selftests/bpf/progs/xdp_metadata.c | 7 +++++++
> 2 files changed, 10 insertions(+)
>
> diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c
> index 50ac9f570bc5..6c71d712932e 100644
> --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c
> +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c
> @@ -228,6 +228,9 @@ static int verify_xsk_metadata(struct xsk *xsk)
> if (!ASSERT_EQ(meta->rx_vlan_proto, VLAN_PID, "rx_vlan_proto"))
> return -1;
>
> + if (!ASSERT_NEQ(meta->rx_csum_lvl, 0, "rx_csum_lvl"))
> + return -1;
> +
> xsk_ring_cons__release(&xsk->rx, 1);
> refill_rx(xsk, comp_addr);
>
> diff --git a/tools/testing/selftests/bpf/progs/xdp_metadata.c b/tools/testing/selftests/bpf/progs/xdp_metadata.c
> index 382984a5d1c9..6f7223d581b7 100644
> --- a/tools/testing/selftests/bpf/progs/xdp_metadata.c
> +++ b/tools/testing/selftests/bpf/progs/xdp_metadata.c
> @@ -26,6 +26,8 @@ extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash,
> extern int bpf_xdp_metadata_rx_vlan_tag(const struct xdp_md *ctx,
> __u16 *vlan_tag,
> __be16 *vlan_proto) __ksym;
> +extern int bpf_xdp_metadata_rx_csum_lvl(const struct xdp_md *ctx,
> + __u8 *csum_level) __ksym;
>
> SEC("xdp")
> int rx(struct xdp_md *ctx)
> @@ -62,6 +64,11 @@ int rx(struct xdp_md *ctx)
> bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash, &meta->rx_hash_type);
> bpf_xdp_metadata_rx_vlan_tag(ctx, &meta->rx_vlan_tag, &meta->rx_vlan_proto);
>
> + /* Same as with timestamp, zero is expected */
> + ret = bpf_xdp_metadata_rx_csum_lvl(ctx, &meta->rx_csum_lvl);
> + if (!ret && meta->rx_csum_lvl == 0)
> + meta->rx_csum_lvl = 1;
> +
> return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS);
> }
>
> --
> 2.41.0
>
