| // SPDX-License-Identifier: GPL-2.0 |
| |
| #include <vmlinux.h> |
| #include "xdp_metadata.h" |
| #include <bpf/bpf_helpers.h> |
| #include <bpf/bpf_endian.h> |
| |
| extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, |
| enum xdp_rss_hash_type *rss_type) __ksym; |
| |
| int called; |
| |
| SEC("freplace/rx") |
| int freplace_rx(struct xdp_md *ctx) |
| { |
| enum xdp_rss_hash_type type = 0; |
| u32 hash = 0; |
| /* Call _any_ metadata function to make sure we don't crash. */ |
| bpf_xdp_metadata_rx_hash(ctx, &hash, &type); |
| called++; |
| return XDP_PASS; |
| } |
| |
| char _license[] SEC("license") = "GPL"; |
