datapath: Remove pkt_key from OVS_CB.

[cascardo/ovs.git] / datapath / datapath.h

diff --git a/datapath/datapath.h b/datapath/datapath.h
index 5d50dd4..b30a9a4 100644 (file)
--- a/datapath/datapath.h
+++ b/datapath/datapath.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2012 Nicira, Inc.
+ * Copyright (c) 2007-2014 Nicira, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of version 2 of the GNU General Public
@@ -28,6 +28,7 @@
 
 #include "compat.h"
 #include "flow.h"
+#include "flow_table.h"
 #include "vlan.h"
 #include "vport.h"
 
@@ -47,19 +48,23 @@
  * @n_lost: Number of received packets that had no matching flow in the flow
  * table that could not be sent to userspace (normally due to an overflow in
  * one of the datapath's queues).
+ * @n_mask_hit: Number of masks looked up for flow match.
+ *   @n_mask_hit / (@n_hit + @n_missed)  will be the average masks looked
+ *   up per packet.
  */
 struct dp_stats_percpu {
        u64 n_hit;
        u64 n_missed;
        u64 n_lost;
-       struct u64_stats_sync sync;
+       u64 n_mask_hit;
+       struct u64_stats_sync syncp;
 };
 
 /**
  * struct datapath - datapath for flow-based packet switching
  * @rcu: RCU callback head for deferred destruction.
  * @list_node: Element in global 'dps' list.
- * @table: Current flow table.  Protected by ovs_mutex and RCU.
+ * @table: flow table.
  * @ports: Hash table for ports.  %OVSP_LOCAL port always exists.  Protected by
  * ovs_mutex and RCU.
  * @stats_percpu: Per-CPU datapath statistics.
@@ -73,7 +78,7 @@ struct datapath {
        struct list_head list_node;
 
        /* Flow table. */
-       struct flow_table __rcu *table;
+       struct flow_table table;
 
        /* Switch ports. */
        struct hlist_head *ports;
@@ -85,37 +90,38 @@ struct datapath {
        /* Network namespace ref. */
        struct net *net;
 #endif
+
+       u32 user_features;
 };
 
 /**
  * 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.
+ * @egress_tun_info: Tunnel information about this packet on egress path.
+ * NULL if the packet is not being tunneled.
+ * @input_vport: The original vport packet came in on. This value is cached
+ * when a packet is received by OVS.
  */
 struct ovs_skb_cb {
-       struct sw_flow          *flow;
-       struct sw_flow_key      *pkt_key;
-       struct ovs_key_ipv4_tunnel  *tun_key;
+       struct ovs_tunnel_info  *egress_tun_info;
+       struct vport            *input_vport;
 };
 #define OVS_CB(skb) ((struct ovs_skb_cb *)(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 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
  * counter.
+ * @egress_tun_info: If nonnull, becomes %OVS_PACKET_ATTR_EGRESS_TUN_KEY.
  */
 struct dp_upcall_info {
-       u8 cmd;
-       const struct sw_flow_key *key;
        const struct nlattr *userdata;
        u32 portid;
+       u8 cmd;
+       const struct ovs_tunnel_info *egress_tun_info;
 };
 
 /**
@@ -140,9 +146,11 @@ int lockdep_ovsl_is_held(void);
 #define lockdep_ovsl_is_held() 1
 #endif
 
-#define ASSERT_OVSL()          WARN_ON(unlikely(!lockdep_ovsl_is_held()))
+#define ASSERT_OVSL()          WARN_ON(!lockdep_ovsl_is_held())
 #define ovsl_dereference(p)                                    \
        rcu_dereference_protected(p, lockdep_ovsl_is_held())
+#define rcu_dereference_ovsl(p)                                        \
+       rcu_dereference_check(p, lockdep_ovsl_is_held())
 
 static inline struct net *ovs_dp_get_net(struct datapath *dp)
 {
@@ -175,21 +183,28 @@ static inline struct vport *ovs_vport_ovsl(const struct datapath *dp, int port_n
 }
 
 extern struct notifier_block ovs_dp_device_notifier;
+extern struct genl_family dp_vport_genl_family;
 extern struct genl_multicast_group ovs_dp_vport_multicast_group;
 
-void ovs_dp_process_received_packet(struct vport *, struct sk_buff *);
+void ovs_dp_process_packet(struct sk_buff *, struct sw_flow_key *key);
 void ovs_dp_detach_port(struct vport *);
 int ovs_dp_upcall(struct datapath *, struct sk_buff *,
-                 const struct dp_upcall_info *);
+                 struct sw_flow_key *, const struct dp_upcall_info *);
 
 const char *ovs_dp_name(const struct datapath *dp);
 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);
+int ovs_execute_actions(struct datapath *dp, struct sk_buff *skb,
+                       struct sw_flow_key *key, struct sw_flow_actions *acts);
 void ovs_dp_notify_wq(struct work_struct *work);
 
-#define OVS_NLERR(fmt, ...) \
-       pr_info_once("netlink: " fmt, ##__VA_ARGS__)
+int action_fifos_init(void);
+void action_fifos_exit(void);
 
+#define OVS_NLERR(fmt, ...)                                    \
+do {                                                           \
+       if (net_ratelimit())                                    \
+               pr_info("netlink: " fmt, ##__VA_ARGS__);        \
+} while (0)
 #endif /* datapath.h */