1e2a46d54SStanislav Fomichev // SPDX-License-Identifier: GPL-2.0 2e2a46d54SStanislav Fomichev 3e2a46d54SStanislav Fomichev #include <vmlinux.h> 4e2a46d54SStanislav Fomichev #include "xdp_metadata.h" 5e2a46d54SStanislav Fomichev #include <bpf/bpf_helpers.h> 6e2a46d54SStanislav Fomichev #include <bpf/bpf_endian.h> 7e2a46d54SStanislav Fomichev 8*0f26b74eSJesper Dangaard Brouer extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, 9*0f26b74eSJesper Dangaard Brouer enum xdp_rss_hash_type *rss_type) __ksym; 10e2a46d54SStanislav Fomichev 11e2a46d54SStanislav Fomichev int called; 12e2a46d54SStanislav Fomichev 13e2a46d54SStanislav Fomichev SEC("freplace/rx") freplace_rx(struct xdp_md * ctx)14e2a46d54SStanislav Fomichevint freplace_rx(struct xdp_md *ctx) 15e2a46d54SStanislav Fomichev { 16*0f26b74eSJesper Dangaard Brouer enum xdp_rss_hash_type type = 0; 17e2a46d54SStanislav Fomichev u32 hash = 0; 18e2a46d54SStanislav Fomichev /* Call _any_ metadata function to make sure we don't crash. */ 19*0f26b74eSJesper Dangaard Brouer bpf_xdp_metadata_rx_hash(ctx, &hash, &type); 20e2a46d54SStanislav Fomichev called++; 21e2a46d54SStanislav Fomichev return XDP_PASS; 22e2a46d54SStanislav Fomichev } 23e2a46d54SStanislav Fomichev 24e2a46d54SStanislav Fomichev char _license[] SEC("license") = "GPL"; 25