ofproto-dpif: Hide struct dpif_backer.

[sliver-openvswitch.git] / ofproto / ofproto-dpif.c

diff --git a/ofproto/ofproto-dpif.c b/ofproto/ofproto-dpif.c
index a51b60d..a221734 100644 (file)
--- a/ofproto/ofproto-dpif.c
+++ b/ofproto/ofproto-dpif.c
@@ -298,6 +298,21 @@ struct dpif_completion {
     struct ofoperation *op;
 };
 
+/* Reasons that we might need to revalidate every facet, and corresponding
+ * coverage counters.
+ *
+ * A value of 0 means that there is no need to revalidate.
+ *
+ * It would be nice to have some cleaner way to integrate with coverage
+ * counters, but with only a few reasons I guess this is good enough for
+ * now. */
+enum revalidate_reason {
+    REV_RECONFIGURE = 1,       /* Switch configuration changed. */
+    REV_STP,                   /* Spanning tree protocol port status change. */
+    REV_PORT_TOGGLED,          /* Port enabled or disabled by CFM, LACP, ...*/
+    REV_FLOW_TABLE,            /* Flow table changed. */
+    REV_INCONSISTENCY          /* Facet self-check failed. */
+};
 COVERAGE_DEFINE(rev_reconfigure);
 COVERAGE_DEFINE(rev_stp);
 COVERAGE_DEFINE(rev_port_toggled);
@@ -313,6 +328,58 @@ struct drop_key {
     size_t key_len;
 };
 
+struct avg_subfacet_rates {
+    double add_rate;   /* Moving average of new flows created per minute. */
+    double del_rate;   /* Moving average of flows deleted per minute. */
+};
+
+/* All datapaths of a given type share a single dpif backer instance. */
+struct dpif_backer {
+    char *type;
+    int refcount;
+    struct dpif *dpif;
+    struct timer next_expiration;
+    struct hmap odp_to_ofport_map; /* ODP port to ofport mapping. */
+
+    struct simap tnl_backers;      /* Set of dpif ports backing tunnels. */
+
+    /* Facet revalidation flags applying to facets which use this backer. */
+    enum revalidate_reason need_revalidate; /* Revalidate every facet. */
+    struct tag_set revalidate_set; /* Revalidate only matching facets. */
+
+    struct hmap drop_keys; /* Set of dropped odp keys. */
+    bool recv_set_enable; /* Enables or disables receiving packets. */
+
+    struct hmap subfacets;
+    struct governor *governor;
+
+    /* Subfacet statistics.
+     *
+     * These keep track of the total number of subfacets added and deleted and
+     * flow life span.  They are useful for computing the flow rates stats
+     * exposed via "ovs-appctl dpif/show".  The goal is to learn about
+     * traffic patterns in ways that we can use later to improve Open vSwitch
+     * performance in new situations.  */
+    long long int created;           /* Time when it is created. */
+    unsigned max_n_subfacet;         /* Maximum number of flows */
+    unsigned avg_n_subfacet;         /* Average number of flows. */
+    long long int avg_subfacet_life; /* Average life span of subfacets. */
+
+    /* The average number of subfacets... */
+    struct avg_subfacet_rates hourly;   /* ...over the last hour. */
+    struct avg_subfacet_rates daily;    /* ...over the last day. */
+    struct avg_subfacet_rates lifetime; /* ...over the switch lifetime. */
+    long long int last_minute;          /* Last time 'hourly' was updated. */
+
+    /* Number of subfacets added or deleted since 'last_minute'. */
+    unsigned subfacet_add_count;
+    unsigned subfacet_del_count;
+
+    /* Number of subfacets added or deleted from 'created' to 'last_minute.' */
+    unsigned long long int total_subfacet_add_count;
+    unsigned long long int total_subfacet_del_count;
+};
+
 /* All existing ofproto_backer instances, indexed by ofproto->up.type. */
 static struct shash all_dpif_backers = SHASH_INITIALIZER(&all_dpif_backers);
 
@@ -1881,6 +1948,13 @@ stp_process_packet(const struct ofport_dpif *ofport,
     }
 }
 \f
+int
+ofproto_dpif_queue_to_priority(const struct ofproto_dpif *ofproto,
+                               uint32_t queue_id, uint32_t *priority)
+{
+    return dpif_queue_to_priority(ofproto->backer->dpif, queue_id, priority);
+}
+
 struct priority_to_dscp *
 get_priority(const struct ofport_dpif *ofport, uint32_t priority)
 {