flow_hash_config_t flow_hash_config)
{
tcp_header_t *tcp;
+ udp_header_t *udp = (void *) (ip + 1);
+ gtpv1u_header_t *gtpu = (void *) (udp + 1);
u64 a, b, c;
u64 t1, t2;
+ u32 t3;
uword is_tcp_udp = 0;
+ uword is_udp = ip->protocol == IP_PROTOCOL_UDP;
u8 protocol = ip->protocol;
- if (PREDICT_TRUE
- ((ip->protocol == IP_PROTOCOL_TCP)
- || (ip->protocol == IP_PROTOCOL_UDP)))
+ if (PREDICT_TRUE ((ip->protocol == IP_PROTOCOL_TCP) || is_udp))
{
is_tcp_udp = 1;
tcp = (void *) (ip + 1);
((flow_hash_config & IP_FLOW_HASH_FL) ? ip6_flow_label_network_order (ip) :
0);
c ^= t1;
-
+ if (PREDICT_TRUE (is_udp) &&
+ PREDICT_FALSE ((flow_hash_config & IP_FLOW_HASH_GTPV1_TEID) &&
+ udp->dst_port == GTPV1_PORT_BE))
+ {
+ t3 = gtpu->teid;
+ a ^= t3;
+ }
hash_mix64 (a, b, c);
return (u32) c;
}