datapath: Add vlan acceleration field for older kernels.

[sliver-openvswitch.git] / datapath / datapath.h

diff --git a/datapath/datapath.h b/datapath/datapath.h
index befa55c..a779510 100644 (file)
--- a/datapath/datapath.h
+++ b/datapath/datapath.h
@@ -22,6 +22,7 @@
 #include "checksum.h"
 #include "flow.h"
 #include "dp_sysfs.h"
+#include "vlan.h"
 
 struct vport;
 
@@ -104,6 +105,8 @@ struct datapath {
  * kernel versions.
  * @tun_id: ID of the tunnel that encapsulated this packet.  It is 0 if the
  * packet was not received on a tunnel.
+ * @vlan_tci: Provides a substitute for the skb->vlan_tci field on kernels
+ * before 2.6.27.
  */
 struct ovs_skb_cb {
        struct vport            *vport;
@@ -112,6 +115,9 @@ struct ovs_skb_cb {
        enum csum_type          ip_summed;
 #endif
        __be64                  tun_id;
+#ifdef NEED_VLAN_FIELD
+       u16                     vlan_tci;
+#endif
 };
 #define OVS_CB(skb) ((struct ovs_skb_cb *)(skb)->cb)