X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=datapath%2Fdatapath.h;h=ad59a3a7b9dd8d6122d152f29174c8e89349ddb4;hb=a6e73618f53138eb6f55e2c66ff8c649794fd8dd;hp=2b9334835d063639b970191ca446d2f4c127391c;hpb=5ca1ba484bd9ade5116a49cf241cb98219d7d696;p=sliver-openvswitch.git

diff --git a/datapath/datapath.h b/datapath/datapath.h
index 2b9334835..ad59a3a7b 100644
--- a/datapath/datapath.h
+++ b/datapath/datapath.h
@@ -61,10 +61,9 @@ struct dp_stats_percpu {
  * struct datapath - datapath for flow-based packet switching
  * @rcu: RCU callback head for deferred destruction.
  * @list_node: Element in global 'dps' list.
- * @n_flows: Number of flows currently in flow table.
- * @table: Current flow table.  Protected by genl_lock and RCU.
+ * @table: Current flow table.  Protected by ovs_mutex and RCU.
  * @ports: Hash table for ports.  %OVSP_LOCAL port always exists.  Protected by
- * RTNL and RCU.
+ * ovs_mutex and RCU.
  * @stats_percpu: Per-CPU datapath statistics.
  * @net: Reference to net namespace.
  *
@@ -120,7 +119,7 @@ struct ovs_skb_cb {
  * struct dp_upcall - metadata to include with a packet to send to userspace
  * @cmd: One of %OVS_PACKET_CMD_*.
  * @key: Becomes %OVS_PACKET_ATTR_KEY.  Must be nonnull.
- * @userdata: If nonnull, its u64 value is extracted and passed to userspace as
+ * @userdata: If nonnull, its variable-length value is passed to userspace as
  * %OVS_PACKET_ATTR_USERDATA.
  * @portid: Netlink PID to which packet should be sent.  If @portid is 0 then no
  * packet is sent and the packet is accounted in the datapath's @n_lost
@@ -142,9 +141,22 @@ struct dp_upcall_info {
 struct ovs_net {
 	struct list_head dps;
 	struct vport_net vport_net;
+	struct work_struct dp_notify_work;
 };
 
 extern int ovs_net_id;
+void ovs_lock(void);
+void ovs_unlock(void);
+
+#ifdef CONFIG_LOCKDEP
+int lockdep_ovsl_is_held(void);
+#else
+#define lockdep_ovsl_is_held()	1
+#endif
+
+#define ASSERT_OVSL()		WARN_ON(unlikely(!lockdep_ovsl_is_held()))
+#define ovsl_dereference(p)					\
+	rcu_dereference_protected(p, lockdep_ovsl_is_held())
 
 static inline struct net *ovs_dp_get_net(struct datapath *dp)
 {
@@ -164,15 +176,15 @@ static inline struct vport *ovs_vport_rcu(const struct datapath *dp, int port_no
 	return ovs_lookup_vport(dp, port_no);
 }
 
-static inline struct vport *ovs_vport_rtnl_rcu(const struct datapath *dp, int port_no)
+static inline struct vport *ovs_vport_ovsl_rcu(const struct datapath *dp, int port_no)
 {
-	WARN_ON_ONCE(!rcu_read_lock_held() && !rtnl_is_locked());
+	WARN_ON_ONCE(!rcu_read_lock_held() && !lockdep_ovsl_is_held());
 	return ovs_lookup_vport(dp, port_no);
 }
 
-static inline struct vport *ovs_vport_rtnl(const struct datapath *dp, int port_no)
+static inline struct vport *ovs_vport_ovsl(const struct datapath *dp, int port_no)
 {
-	ASSERT_RTNL();
+	ASSERT_OVSL();
 	return ovs_lookup_vport(dp, port_no);
 }
 
@@ -189,4 +201,5 @@ struct sk_buff *ovs_vport_cmd_build_info(struct vport *, u32 portid, u32 seq,
 					 u8 cmd);
 
 int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb);
+void ovs_dp_notify_wq(struct work_struct *work);
 #endif /* datapath.h */