diff options
| author |   Tom Herbert <therbert@google.com> | 2014-07-01 21:32:49 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-07-07 21:14:21 -0700 |
| commit | 535fb8d006bc6a96d59558181a9a6f267be382c5 (patch) | |
| tree | 044ec047776bdbc14bdcf93ae2b9068d349bdeef | |
| parent | udp: Add function to make source port for UDP tunnels (diff) | |
| download | linux-dev-535fb8d006bc6a96d59558181a9a6f267be382c5.tar.xz linux-dev-535fb8d006bc6a96d59558181a9a6f267be382c5.zip | |
vxlan: Call udp_flow_src_port
In vxlan and OVS vport-vxlan call common function to get source port
for a UDP tunnel. Removed vxlan_src_port since the functionality is
now in udp_flow_src_port.
Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/vxlan.c | 26 | ||||
| -rw-r--r-- | include/net/vxlan.h | 2 | ||||
| -rw-r--r-- | net/openvswitch/vport-vxlan.c | 5 |
3 files changed, 3 insertions, 30 deletions
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index ade33ef82823..c2d360150804 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1570,25 +1570,6 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb) return false; } -/* Compute source port for outgoing packet - * first choice to use L4 flow hash since it will spread - * better and maybe available from hardware - * secondary choice is to use jhash on the Ethernet header - */ -__be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb) -{ - unsigned int range = (port_max - port_min) + 1; - u32 hash; - - hash = skb_get_hash(skb); - if (!hash) - hash = jhash(skb->data, 2 * ETH_ALEN, - (__force u32) skb->protocol); - - return htons((((u64) hash * range) >> 32) + port_min); -} -EXPORT_SYMBOL_GPL(vxlan_src_port); - static inline struct sk_buff *vxlan_handle_offloads(struct sk_buff *skb, bool udp_csum) { @@ -1807,7 +1788,8 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev, if (tos == 1) tos = ip_tunnel_get_dsfield(old_iph, skb); - src_port = vxlan_src_port(vxlan->port_min, vxlan->port_max, skb); + src_port = udp_flow_src_port(dev_net(dev), skb, vxlan->port_min, + vxlan->port_max, true); if (dst->sa.sa_family == AF_INET) { memset(&fl4, 0, sizeof(fl4)); @@ -2235,7 +2217,6 @@ static void vxlan_setup(struct net_device *dev) { struct vxlan_dev *vxlan = netdev_priv(dev); unsigned int h; - int low, high; eth_hw_addr_random(dev); ether_setup(dev); @@ -2272,9 +2253,6 @@ static void vxlan_setup(struct net_device *dev) vxlan->age_timer.function = vxlan_cleanup; vxlan->age_timer.data = (unsigned long) vxlan; - inet_get_local_port_range(dev_net(dev), &low, &high); - vxlan->port_min = low; - vxlan->port_max = high; vxlan->dst_port = htons(vxlan_port); vxlan->dev = dev; diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 12196ce661d9..d5f59f3fc35d 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -45,8 +45,6 @@ int vxlan_xmit_skb(struct vxlan_sock *vs, __be32 src, __be32 dst, __u8 tos, __u8 ttl, __be16 df, __be16 src_port, __be16 dst_port, __be32 vni, bool xnet); -__be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb); - /* IP header + UDP + VXLAN + Ethernet header */ #define VXLAN_HEADROOM (20 + 8 + 8 + 14) /* IPv6 header + UDP + VXLAN + Ethernet header */ diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c index 0edbd95c60e7..d8b7e247bebf 100644 --- a/net/openvswitch/vport-vxlan.c +++ b/net/openvswitch/vport-vxlan.c @@ -143,8 +143,6 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb) struct rtable *rt; struct flowi4 fl; __be16 src_port; - int port_min; - int port_max; __be16 df; int err; @@ -172,8 +170,7 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb) skb->ignore_df = 1; - inet_get_local_port_range(net, &port_min, &port_max); - src_port = vxlan_src_port(port_min, port_max, skb); + src_port = udp_flow_src_port(net, skb, 0, 0, true); err = vxlan_xmit_skb(vxlan_port->vs, rt, skb, fl.saddr, OVS_CB(skb)->tun_key->ipv4_dst, |