[ovs-dev] [PATCH] datapath: Add support for Linux 3.12
James Page
james.page at ubuntu.com
Wed Jan 8 17:57:21 UTC 2014
Bump kernel support for datapath module to include 3.12.
Make use of native vxlan kernel module for Linux >= 3.12 or if
the kernel in use supports the required vxlan functions.
Make use of native iptunnels capability for Linux >= 3.12.
Note: ipv6 enablement with vxlan is not supported by this change.
Signed-off-by: James Page <james.page at ubuntu.com>
---
FAQ | 2 +-
NEWS | 2 +-
acinclude.m4 | 5 +++--
datapath/linux/compat/include/net/ip_tunnels.h | 8 +++++++-
datapath/linux/compat/include/net/vxlan.h | 10 +++++++++-
datapath/linux/compat/ip_tunnels_core.c | 6 +++++-
datapath/linux/compat/vxlan.c | 8 ++++++--
datapath/vport-gre.c | 2 +-
datapath/vport-lisp.c | 2 +-
datapath/vport-vxlan.c | 2 +-
10 files changed, 35 insertions(+), 12 deletions(-)
diff --git a/FAQ b/FAQ
index 75d9e6b..bbb13c4 100644
--- a/FAQ
+++ b/FAQ
@@ -148,7 +148,7 @@ A: The following table lists the Linux kernel versions against which the
1.10.x 2.6.18 to 3.8
1.11.x 2.6.18 to 3.8
2.0.x 2.6.32 to 3.10
- 2.1.x 2.6.32 to 3.11
+ 2.1.x 2.6.32 to 3.12
Open vSwitch userspace should also work with the Linux kernel module
built into Linux 3.3 and later.
diff --git a/NEWS b/NEWS
index 515a236..01c9d75 100644
--- a/NEWS
+++ b/NEWS
@@ -46,7 +46,7 @@ v2.1.0 - xx xxx xxxx
number.
- ovs-vswitchd.conf.db.5 man page will contain graphviz/dot
diagram only if graphviz package was installed at the build time.
- - Support for Linux kernels up to 3.11
+ - Support for Linux kernels up to 3.12
- ovs-dpctl:
The "show" command also displays mega flow mask stats.
- ovs-ofctl:
diff --git a/acinclude.m4 b/acinclude.m4
index 8ff5828..d62e295 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -134,10 +134,10 @@ AC_DEFUN([OVS_CHECK_LINUX], [
AC_MSG_RESULT([$kversion])
if test "$version" -ge 3; then
- if test "$version" = 3 && test "$patchlevel" -le 11; then
+ if test "$version" = 3 && test "$patchlevel" -le 12; then
: # Linux 3.x
else
- AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 3.11.x is not supported])
+ AC_ERROR([Linux kernel in $KBUILD is version $kversion, but version newer than 3.12.x is not supported])
fi
else
if test "$version" -le 1 || test "$patchlevel" -le 5 || test "$sublevel" -le 31; then
@@ -275,6 +275,7 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
OVS_GREP_IFELSE([$KSRC/include/net/genetlink.h], [parallel_ops])
OVS_GREP_IFELSE([$KSRC/include/net/gre.h], [gre_cisco_register])
+ OVS_GREP_IFELSE([$KSRC/include/net/vxlan.h], [vxlan_sock_add])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_get_be16])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be16])
OVS_GREP_IFELSE([$KSRC/include/net/netlink.h], [nla_put_be32])
diff --git a/datapath/linux/compat/include/net/ip_tunnels.h b/datapath/linux/compat/include/net/ip_tunnels.h
index a786aa9..7f63266 100644
--- a/datapath/linux/compat/include/net/ip_tunnels.h
+++ b/datapath/linux/compat/include/net/ip_tunnels.h
@@ -11,6 +11,10 @@
#include <net/ip.h>
#include <net/rtnetlink.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0)
+#include_next <net/ip_tunnels.h>
+#else
+
#define TUNNEL_CSUM __cpu_to_be16(0x01)
#define TUNNEL_ROUTING __cpu_to_be16(0x02)
#define TUNNEL_KEY __cpu_to_be16(0x04)
@@ -34,7 +38,9 @@ struct tnl_ptk_info {
int iptunnel_xmit(struct rtable *rt,
struct sk_buff *skb,
__be32 src, __be32 dst, __u8 proto,
- __u8 tos, __u8 ttl, __be16 df);
+ __u8 tos, __u8 ttl, __be16 df, bool xnet);
int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
+
+#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0) */
#endif /* __NET_IP_TUNNELS_H */
diff --git a/datapath/linux/compat/include/net/vxlan.h b/datapath/linux/compat/include/net/vxlan.h
index 3ac816b..0608598 100644
--- a/datapath/linux/compat/include/net/vxlan.h
+++ b/datapath/linux/compat/include/net/vxlan.h
@@ -5,6 +5,13 @@
#include <linux/netdevice.h>
#include <linux/udp.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,12,0) || \
+ defined(HAVE_VXLAN_SOCK_ADD)
+#include_next <net/vxlan.h>
+#endif
+
+#ifndef HAVE_VXLAN_SOCK_ADD
+
struct vxlan_sock;
typedef void (vxlan_rcv_t)(struct vxlan_sock *vs, struct sk_buff *skb, __be32 key);
@@ -20,7 +27,7 @@ struct vxlan_sock {
struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port,
vxlan_rcv_t *rcv, void *data,
- bool no_share);
+ bool no_share, bool ipv6);
void vxlan_sock_release(struct vxlan_sock *vs);
@@ -31,4 +38,5 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
__be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb);
+#endif /* HAVE_VXLAN_SOCK_ADD */
#endif
diff --git a/datapath/linux/compat/ip_tunnels_core.c b/datapath/linux/compat/ip_tunnels_core.c
index 66d5e02..3dad15d 100644
--- a/datapath/linux/compat/ip_tunnels_core.c
+++ b/datapath/linux/compat/ip_tunnels_core.c
@@ -34,10 +34,12 @@
#include "compat.h"
#include "gso.h"
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0)
+
int iptunnel_xmit(struct rtable *rt,
struct sk_buff *skb,
__be32 src, __be32 dst, __u8 proto,
- __u8 tos, __u8 ttl, __be16 df)
+ __u8 tos, __u8 ttl, __be16 df, bool xnet)
{
int pkt_len = skb->len;
struct iphdr *iph;
@@ -108,3 +110,5 @@ int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto)
skb->pkt_type = PACKET_HOST;
return 0;
}
+
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0) */
diff --git a/datapath/linux/compat/vxlan.c b/datapath/linux/compat/vxlan.c
index 64877e0..83f7a96 100644
--- a/datapath/linux/compat/vxlan.c
+++ b/datapath/linux/compat/vxlan.c
@@ -56,6 +56,8 @@
#include "gso.h"
#include "vlan.h"
+#ifndef HAVE_VXLAN_SOCK_ADD
+
#define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr))
#define VXLAN_FLAGS 0x08000000 /* struct vxlanhdr.vx_flags required value. */
@@ -223,7 +225,7 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
if (err)
return err;
- return iptunnel_xmit(rt, skb, src, dst, IPPROTO_UDP, tos, ttl, df);
+ return iptunnel_xmit(rt, skb, src, dst, IPPROTO_UDP, tos, ttl, df, false);
}
static void rcu_free_vs(struct rcu_head *rcu)
@@ -298,7 +300,7 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port,
struct vxlan_sock *vxlan_sock_add(struct net *net, __be16 port,
vxlan_rcv_t *rcv, void *data,
- bool no_share)
+ bool no_share, bool ipv6)
{
return vxlan_socket_create(net, port, rcv, data);
}
@@ -310,3 +312,5 @@ void vxlan_sock_release(struct vxlan_sock *vs)
queue_work(system_wq, &vs->del_work);
}
+
+#endif /* HAVE_VXLAN_SOCK_ADD */
diff --git a/datapath/vport-gre.c b/datapath/vport-gre.c
index 8737b63..8613756 100644
--- a/datapath/vport-gre.c
+++ b/datapath/vport-gre.c
@@ -178,7 +178,7 @@ static int __send(struct vport *vport, struct sk_buff *skb,
return iptunnel_xmit(rt, skb, saddr,
OVS_CB(skb)->tun_key->ipv4_dst, IPPROTO_GRE,
OVS_CB(skb)->tun_key->ipv4_tos,
- OVS_CB(skb)->tun_key->ipv4_ttl, df);
+ OVS_CB(skb)->tun_key->ipv4_ttl, df, false);
err_free_rt:
ip_rt_put(rt);
error:
diff --git a/datapath/vport-lisp.c b/datapath/vport-lisp.c
index c2698ae..a441540 100644
--- a/datapath/vport-lisp.c
+++ b/datapath/vport-lisp.c
@@ -463,7 +463,7 @@ static int lisp_send(struct vport *vport, struct sk_buff *skb)
sent_len = iptunnel_xmit(rt, skb,
saddr, OVS_CB(skb)->tun_key->ipv4_dst,
IPPROTO_UDP, OVS_CB(skb)->tun_key->ipv4_tos,
- OVS_CB(skb)->tun_key->ipv4_ttl, df);
+ OVS_CB(skb)->tun_key->ipv4_ttl, df, false);
return sent_len > 0 ? sent_len + network_offset : sent_len;
diff --git a/datapath/vport-vxlan.c b/datapath/vport-vxlan.c
index ab2b6f7..d264785 100644
--- a/datapath/vport-vxlan.c
+++ b/datapath/vport-vxlan.c
@@ -124,7 +124,7 @@ static struct vport *vxlan_tnl_create(const struct vport_parms *parms)
vxlan_port = vxlan_vport(vport);
strncpy(vxlan_port->name, parms->name, IFNAMSIZ);
- vs = vxlan_sock_add(net, htons(dst_port), vxlan_rcv, vport, true);
+ vs = vxlan_sock_add(net, htons(dst_port), vxlan_rcv, vport, true, false);
if (IS_ERR(vs)) {
ovs_vport_free(vport);
return (void *)vs;
--
1.8.5.2
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