On 8/4/2018 1:31 AM, we...@ucloud.cn wrote:
From: wenxu <we...@ucloud.cn>
It makes datapath can support both ndo_add_udp_tunnel_port and
ndo_add_vxlan/geneve_port. The newer kernels don't support vxlan/geneve
specific NDO's anymore
Signed-off-by: wenxu <we...@ucloud.cn>
LGTM
Reviewed-by: Greg Rose <gvrose8...@gmail.com>
Tested-by: Greg Rose <gvrose8...@gmail.com>
---
acinclude.m4 | 1 +
datapath/linux/compat/geneve.c | 41 ++++++++++++++++++--
datapath/linux/compat/include/net/udp_tunnel.h | 14 +++++++
datapath/linux/compat/vxlan.c | 52 ++++++++++++++++++++++++--
4 files changed, 102 insertions(+), 6 deletions(-)
diff --git a/acinclude.m4 b/acinclude.m4
index d6e0d33..7899307 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -553,6 +553,7 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
[OVS_DEFINE([USE_UPSTREAM_TUNNEL_GSO])])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_vxlan_port])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_add_geneve_port])
+ OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [ndo_udp_tunnel_add])
OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [netdev_features_t])
dnl Ubuntu kernel 3.13 has defined this struct but not used for
netdev->tstats.
dnl So check type of tstats.
diff --git a/datapath/linux/compat/geneve.c b/datapath/linux/compat/geneve.c
index 435a23f..5b5bbae 100644
--- a/datapath/linux/compat/geneve.c
+++ b/datapath/linux/compat/geneve.c
@@ -432,6 +432,14 @@ static void geneve_notify_add_rx_port(struct geneve_sock
*gs)
if (dev->netdev_ops->ndo_add_geneve_port)
dev->netdev_ops->ndo_add_geneve_port(dev, sa_family,
port);
+#elif defined(HAVE_NDO_UDP_TUNNEL_ADD)
+ struct udp_tunnel_info ti;
+ ti.type = UDP_TUNNEL_TYPE_GENEVE;
+ ti.sa_family = sa_family;
+ ti.port = inet_sk(sk)->inet_sport;
+
+ if (dev->netdev_ops->ndo_udp_tunnel_add)
+ dev->netdev_ops->ndo_udp_tunnel_add(dev, &ti);
#endif
}
rcu_read_unlock();
@@ -452,6 +460,14 @@ static void geneve_notify_del_rx_port(struct geneve_sock
*gs)
if (dev->netdev_ops->ndo_del_geneve_port)
dev->netdev_ops->ndo_del_geneve_port(dev, sa_family,
port);
+#elif defined(HAVE_NDO_UDP_TUNNEL_ADD)
+ struct udp_tunnel_info ti;
+ ti.type = UDP_TUNNEL_TYPE_GENEVE;
+ ti.port = inet_sk(sk)->inet_sport;
+ ti.sa_family = sa_family;
+
+ if (dev->netdev_ops->ndo_udp_tunnel_del)
+ dev->netdev_ops->ndo_udp_tunnel_del(dev, &ti);
#endif
}
@@ -1301,9 +1317,9 @@ static struct device_type geneve_type = {
.name = "geneve",
};
-/* Calls the ndo_add_geneve_port of the caller in order to
- * supply the listening GENEVE udp ports. Callers are expected
- * to implement the ndo_add_geneve_port.
+/* Calls the ndo_add_geneve_port or ndo_udp_tunnel_add of the caller
+ * in order to supply the listening GENEVE udp ports. Callers are
+ * expected to implement the ndo_add_geneve_port.
*/
static void geneve_push_rx_ports(struct net_device *dev)
{
@@ -1326,6 +1342,25 @@ static void geneve_push_rx_ports(struct net_device *dev)
dev->netdev_ops->ndo_add_geneve_port(dev, sa_family, port);
}
rcu_read_unlock();
+#elif defined(HAVE_NDO_UDP_TUNNEL_ADD)
+ struct net *net = dev_net(dev);
+ struct geneve_net *gn = net_generic(net, geneve_net_id);
+ struct geneve_sock *gs;
+ struct sock *sk;
+
+ if (!dev->netdev_ops->ndo_udp_tunnel_add)
+ return;
+
+ rcu_read_lock();
+ list_for_each_entry_rcu(gs, &gn->sock_list, list) {
+ struct udp_tunnel_info ti;
+ ti.type = UDP_TUNNEL_TYPE_GENEVE;
+ sk = gs->sock->sk;
+ ti.port = inet_sk(sk)->inet_sport;
+ ti.sa_family = sk->sk_family;
+ dev->netdev_ops->ndo_udp_tunnel_add(dev, &ti);
+ }
+ rcu_read_unlock();
#endif
}
diff --git a/datapath/linux/compat/include/net/udp_tunnel.h b/datapath/linux/compat/include/net/udp_tunnel.h
index 6b5e540..6e40633 100644
--- a/datapath/linux/compat/include/net/udp_tunnel.h
+++ b/datapath/linux/compat/include/net/udp_tunnel.h
@@ -43,6 +43,20 @@ struct udp_port_cfg {
ipv6_v6only:1;
};
+#ifdef HAVE_NDO_UDP_TUNNEL_ADD
+enum udp_parsable_tunnel_type {
+ UDP_TUNNEL_TYPE_VXLAN, /* RFC 7348 */
+ UDP_TUNNEL_TYPE_GENEVE, /* draft-ietf-nvo3-geneve */
+ UDP_TUNNEL_TYPE_VXLAN_GPE, /* draft-ietf-nvo3-vxlan-gpe */
+};
+
+struct udp_tunnel_info {
+ unsigned short type;
+ sa_family_t sa_family;
+ __be16 port;
+};
+#endif
+
#define udp_sock_create4 rpl_udp_sock_create4
int rpl_udp_sock_create4(struct net *net, struct udp_port_cfg *cfg,
struct socket **sockp);
diff --git a/datapath/linux/compat/vxlan.c b/datapath/linux/compat/vxlan.c
index 7f5d5ce..57b7866 100644
--- a/datapath/linux/compat/vxlan.c
+++ b/datapath/linux/compat/vxlan.c
@@ -396,6 +396,17 @@ static void vxlan_notify_add_rx_port(struct vxlan_sock *vs)
if (dev->netdev_ops->ndo_add_vxlan_port)
dev->netdev_ops->ndo_add_vxlan_port(dev, sa_family,
port);
+#elif defined(HAVE_NDO_UDP_TUNNEL_ADD)
+ struct udp_tunnel_info ti;
+ if (vs->flags & VXLAN_F_GPE)
+ ti.type = UDP_TUNNEL_TYPE_VXLAN_GPE;
+ else
+ ti.type = UDP_TUNNEL_TYPE_VXLAN;
+ ti.sa_family = sa_family;
+ ti.port = inet_sk(sk)->inet_sport;
+
+ if (dev->netdev_ops->ndo_udp_tunnel_add)
+ dev->netdev_ops->ndo_udp_tunnel_add(dev, &ti);
#endif
}
rcu_read_unlock();
@@ -417,6 +428,17 @@ static void vxlan_notify_del_rx_port(struct vxlan_sock *vs)
if (dev->netdev_ops->ndo_del_vxlan_port)
dev->netdev_ops->ndo_del_vxlan_port(dev, sa_family,
port);
+#elif defined(HAVE_NDO_UDP_TUNNEL_ADD)
+ struct udp_tunnel_info ti;
+ if (vs->flags & VXLAN_F_GPE)
+ ti.type = UDP_TUNNEL_TYPE_VXLAN_GPE;
+ else
+ ti.type = UDP_TUNNEL_TYPE_VXLAN;
+ ti.port = inet_sk(sk)->inet_sport;
+ ti.sa_family = sa_family;
+
+ if (dev->netdev_ops->ndo_udp_tunnel_del)
+ dev->netdev_ops->ndo_udp_tunnel_del(dev, &ti);
#endif
}
rcu_read_unlock();
@@ -1518,9 +1540,9 @@ static struct device_type vxlan_type = {
.name = "vxlan",
};
-/* Calls the ndo_add_vxlan_port of the caller in order to
- * supply the listening VXLAN udp ports. Callers are expected
- * to implement the ndo_add_vxlan_port.
+/* Calls the ndo_add_vxlan_port or ndo_udp_tunnel_add of the caller
+ * in order to supply the listening VXLAN udp ports. Callers are
+ * expected to implement the ndo_add_vxlan_port.
*/
static void vxlan_push_rx_ports(struct net_device *dev)
{
@@ -1545,6 +1567,30 @@ static void vxlan_push_rx_ports(struct net_device *dev)
}
}
spin_unlock(&vn->sock_lock);
+#elif defined(HAVE_NDO_UDP_TUNNEL_ADD)
+ struct vxlan_sock *vs;
+ struct net *net = dev_net(dev);
+ struct vxlan_net *vn = net_generic(net, vxlan_net_id);
+ unsigned int i;
+
+ if (!dev->netdev_ops->ndo_udp_tunnel_add)
+ return;
+
+ spin_lock(&vn->sock_lock);
+ for (i = 0; i < PORT_HASH_SIZE; ++i) {
+ hlist_for_each_entry_rcu(vs, &vn->sock_list[i], hlist) {
+ struct udp_tunnel_info ti;
+ if (vs->flags & VXLAN_F_GPE)
+ ti.type = UDP_TUNNEL_TYPE_VXLAN_GPE;
+ else
+ ti.type = UDP_TUNNEL_TYPE_VXLAN;
+ ti.port = inet_sk(vs->sock->sk)->inet_sport;
+ ti.sa_family = vxlan_get_sk_family(vs);
+
+ dev->netdev_ops->ndo_udp_tunnel_add(dev, &ti);
+ }
+ }
+ spin_unlock(&vn->sock_lock);
#endif
}
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