ofproto: Handle flow installation and eviction in upcall.

[sliver-openvswitch.git] / ofproto / ofproto-dpif-governor.h

diff --git a/ofproto/ofproto-dpif-governor.h b/ofproto/ofproto-dpif-governor.h
deleted file mode 100644 (file)
index 7e6ec92..0000000
--- a/ofproto/ofproto-dpif-governor.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * Copyright (c) 2012 Nicira, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef OFPROTO_DPIF_GOVERNOR_H
-#define OFPROTO_DPIF_GOVERNOR_H 1
-
-/* Flow setup rate limiter.
- *
- * A governor in an engine limits a vehicle's speed.  This governor limits the
- * rate at which flows are set up in the datapath.  The client provides as
- * input the hashes of observed packets.  The governor keeps track of hashes
- * seen multiple times.  When a given hash is seen often enough, the governor
- * indicates to its client that it should set up a facet and a subfacet and a
- * datapath flow for that flow.
- *
- * The same tracking could be done in terms of facets and subfacets directly,
- * but the governor code uses much less time and space to do the same job. */
-
-#include <stdbool.h>
-#include <stdint.h>
-
-struct governor {
-    char *name;                 /* Name, for log messages. */
-    uint8_t *table;             /* Table of counters, two per byte. */
-    unsigned int size;          /* Table size in bytes. */
-    long long int start;        /* Time when the table was last cleared. */
-    unsigned int n_packets;     /* Number of packets processed. */
-
-    /* Statistics for skipping counters when most flows get set up. */
-    unsigned int n_flows;       /* Number of unique flows seen. */
-    unsigned int n_setups;      /* Number of flows set up based on counters. */
-    unsigned int n_shortcuts;   /* Number of flows set up based on history. */
-};
-
-struct governor *governor_create(void);
-void governor_destroy(struct governor *);
-
-void governor_run(struct governor *);
-void governor_wait(struct governor *);
-
-bool governor_is_idle(struct governor *);
-
-bool governor_should_install_flow(struct governor *, uint32_t hash, int n);
-
-#endif /* ofproto/ofproto-dpif-governor.h */