datapath: add netlink error message to help kernel userspace integration.

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

diff --git a/datapath/datapath.h b/datapath/datapath.h
index ad59a3a..d14a162 100644 (file)
--- a/datapath/datapath.h
+++ b/datapath/datapath.h
@@ -92,6 +92,7 @@ struct datapath {
 /**
  * struct ovs_skb_cb - OVS data in skb CB
  * @flow: The flow associated with this packet.  May be %NULL if no flow.
+ * @pkt_key: The flow information extracted from the packet.  Must be nonnull.
  * @tun_key: Key for the tunnel that encapsulated this packet. NULL if the
  * packet is not being tunneled.
  * @ip_summed: Consistently stores L4 checksumming status across different
@@ -104,6 +105,7 @@ struct datapath {
  */
 struct ovs_skb_cb {
        struct sw_flow          *flow;
+       struct sw_flow_key      *pkt_key;
        struct ovs_key_ipv4_tunnel  *tun_key;
 #ifdef NEED_CSUM_NORMALIZE
        enum csum_type          ip_summed;
@@ -202,4 +204,8 @@ struct sk_buff *ovs_vport_cmd_build_info(struct vport *, u32 portid, u32 seq,
 
 int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb);
 void ovs_dp_notify_wq(struct work_struct *work);
+
+#define OVS_NLERR(fmt, ...) \
+       pr_info_once(fmt "netlink: ", ##__VA_ARGS__)
+
 #endif /* datapath.h */