datapath: collect mega flow mask stats

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

diff --git a/datapath/datapath.h b/datapath/datapath.h
index 4a49a7d..879a830 100644 (file)
--- a/datapath/datapath.h
+++ b/datapath/datapath.h
@@ -28,6 +28,7 @@
 
 #include "compat.h"
 #include "flow.h"
+#include "flow_table.h"
 #include "vlan.h"
 #include "vport.h"
 
@@ -47,11 +48,15 @@
  * @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;
+       u64 n_mask_hit;
        struct u64_stats_sync sync;
 };
 
@@ -59,12 +64,11 @@ 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.
- * @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.
  * @net: Reference to net namespace.
- * @last_rehash: Timestamp of last rehash.
  *
  * Context: See the comment on locking at the top of datapath.c for additional
  * locking information.
@@ -74,7 +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;
@@ -86,7 +90,6 @@ struct datapath {
        /* Network namespace ref. */
        struct net *net;
 #endif
-       unsigned long last_rehash;
 };
 
 /**