162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci#include <vmlinux.h> 462306a36Sopenharmony_ci#include "xdp_metadata.h" 562306a36Sopenharmony_ci#include <bpf/bpf_helpers.h> 662306a36Sopenharmony_ci#include <bpf/bpf_endian.h> 762306a36Sopenharmony_ci 862306a36Sopenharmony_ciextern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, 962306a36Sopenharmony_ci enum xdp_rss_hash_type *rss_type) __ksym; 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ciint called; 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ciSEC("freplace/rx") 1462306a36Sopenharmony_ciint freplace_rx(struct xdp_md *ctx) 1562306a36Sopenharmony_ci{ 1662306a36Sopenharmony_ci enum xdp_rss_hash_type type = 0; 1762306a36Sopenharmony_ci u32 hash = 0; 1862306a36Sopenharmony_ci /* Call _any_ metadata function to make sure we don't crash. */ 1962306a36Sopenharmony_ci bpf_xdp_metadata_rx_hash(ctx, &hash, &type); 2062306a36Sopenharmony_ci called++; 2162306a36Sopenharmony_ci return XDP_PASS; 2262306a36Sopenharmony_ci} 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_cichar _license[] SEC("license") = "GPL"; 25