diff options
| author |   Takeru Hayasaka <hayatake396@gmail.com> | 2023-01-17 04:45:58 +0900 |
|---|---|---|
| committer |   Neale Ranns <neale@graphiant.com> | 2023-03-31 06:04:42 +0000 |
| commit | b23c6f4f29b53afa6be2735b30b08fcb115f20cc (patch) | |
| tree | 59cca6452dca4b17fbce112ca8f4e5b3004565b7 /src/vnet/ip/ip6_inlines.h | |
| parent | 55686e1c59f8bcf399f5ff58b3ca1030a415009c (diff) | |
ip: support flow-hash gtpv1teid
support with GTPv1 TEID added to the flow hash.
This can able to ECMP to PGW and parallelization.
Type: feature
Change-Id: I6f758579027caf6123831ef2db7afe17e424a6eb
Signed-off-by: Takeru Hayasaka <hayatake396@gmail.com>
Diffstat (limited to 'src/vnet/ip/ip6_inlines.h')
| -rw-r--r-- | src/vnet/ip/ip6_inlines.h | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/src/vnet/ip/ip6_inlines.h b/src/vnet/ip/ip6_inlines.h index 9c2be60b267..4a2b91b9ec9 100644 --- a/src/vnet/ip/ip6_inlines.h +++ b/src/vnet/ip/ip6_inlines.h @@ -50,14 +50,16 @@ ip6_compute_flow_hash (const ip6_header_t * ip, 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); @@ -113,7 +115,13 @@ ip6_compute_flow_hash (const ip6_header_t * ip, ((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; } |