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vxlan: change vxlan to use UDP socket GRO

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Adapt vxlan_gro_receive, vxlan_gro_complete to take a socket argument.
Set these functions in tunnel_config.  Don't set udp_offloads any more.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2016-04-05 08:22:53 -07:00 • committed by David S. Miller
parent 38fd2af24f
commit 5602c48cf8
2 changed files with 8 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

30
drivers/net/vxlan.c
View file

@ -551,16 +551,15 @@ static struct vxlanhdr *vxlan_gro_remcsum(struct sk_buff *skb,
return vh; return vh;
} }
static struct sk_buff **vxlan_gro_receive(struct sk_buff **head, static struct sk_buff **vxlan_gro_receive(struct sock *sk,
struct sk_buff *skb, struct sk_buff **head,
struct udp_offload *uoff) struct sk_buff *skb)
{ {
struct sk_buff *p, **pp = NULL; struct sk_buff *p, **pp = NULL;
struct vxlanhdr *vh, *vh2; struct vxlanhdr *vh, *vh2;
unsigned int hlen, off_vx; unsigned int hlen, off_vx;
int flush = 1; int flush = 1;
struct vxlan_sock *vs = container_of(uoff, struct vxlan_sock, struct vxlan_sock *vs = rcu_dereference_sk_user_data(sk);
udp_offloads);
__be32 flags; __be32 flags;
struct gro_remcsum grc; struct gro_remcsum grc;
@ -613,8 +612,7 @@ out:
return pp; return pp;
} }
static int vxlan_gro_complete(struct sk_buff *skb, int nhoff, static int vxlan_gro_complete(struct sock *sk, struct sk_buff *skb, int nhoff)
struct udp_offload *uoff)
{ {
udp_tunnel_gro_complete(skb, nhoff); udp_tunnel_gro_complete(skb, nhoff);
@ -629,13 +627,6 @@ static void vxlan_notify_add_rx_port(struct vxlan_sock *vs)
struct net *net = sock_net(sk); struct net *net = sock_net(sk);
sa_family_t sa_family = vxlan_get_sk_family(vs); sa_family_t sa_family = vxlan_get_sk_family(vs);
__be16 port = inet_sk(sk)->inet_sport; __be16 port = inet_sk(sk)->inet_sport;
int err;
if (sa_family == AF_INET) {
err = udp_add_offload(net, &vs->udp_offloads);
if (err)
pr_warn("vxlan: udp_add_offload failed with status %d\n", err);
}
rcu_read_lock(); rcu_read_lock();
for_each_netdev_rcu(net, dev) { for_each_netdev_rcu(net, dev) {
@ -662,9 +653,6 @@ static void vxlan_notify_del_rx_port(struct vxlan_sock *vs)
port); port);
} }
rcu_read_unlock(); rcu_read_unlock();
if (sa_family == AF_INET)
udp_del_offload(&vs->udp_offloads);
} }
/* Add new entry to forwarding table -- assumes lock held */ /* Add new entry to forwarding table -- assumes lock held */
@ -2752,21 +2740,19 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, bool ipv6,
atomic_set(&vs->refcnt, 1); atomic_set(&vs->refcnt, 1);
vs->flags = (flags & VXLAN_F_RCV_FLAGS); vs->flags = (flags & VXLAN_F_RCV_FLAGS);
/* Initialize the vxlan udp offloads structure */
vs->udp_offloads.port = port;
vs->udp_offloads.callbacks.gro_receive = vxlan_gro_receive;
vs->udp_offloads.callbacks.gro_complete = vxlan_gro_complete;
spin_lock(&vn->sock_lock); spin_lock(&vn->sock_lock);
hlist_add_head_rcu(&vs->hlist, vs_head(net, port)); hlist_add_head_rcu(&vs->hlist, vs_head(net, port));
vxlan_notify_add_rx_port(vs); vxlan_notify_add_rx_port(vs);
spin_unlock(&vn->sock_lock); spin_unlock(&vn->sock_lock);
/* Mark socket as an encapsulation socket. */ /* Mark socket as an encapsulation socket. */
memset(&tunnel_cfg, 0, sizeof(tunnel_cfg));
tunnel_cfg.sk_user_data = vs; tunnel_cfg.sk_user_data = vs;
tunnel_cfg.encap_type = 1; tunnel_cfg.encap_type = 1;
tunnel_cfg.encap_rcv = vxlan_rcv; tunnel_cfg.encap_rcv = vxlan_rcv;
tunnel_cfg.encap_destroy = NULL; tunnel_cfg.encap_destroy = NULL;
tunnel_cfg.gro_receive = vxlan_gro_receive;
tunnel_cfg.gro_complete = vxlan_gro_complete;
setup_udp_tunnel_sock(net, sock, &tunnel_cfg); setup_udp_tunnel_sock(net, sock, &tunnel_cfg);

1
include/net/vxlan.h
View file

@ -189,7 +189,6 @@ struct vxlan_sock {
struct rcu_head rcu; struct rcu_head rcu;
struct hlist_head vni_list[VNI_HASH_SIZE]; struct hlist_head vni_list[VNI_HASH_SIZE];
atomic_t refcnt; atomic_t refcnt;
struct udp_offload udp_offloads;
u32 flags; u32 flags;
}; };