X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=ofproto%2Fofproto-dpif.c;h=2f8d404b22919156ecdd219edffdc6746500e0f5;hb=d19cedb28fa32091d149749d326707d8405cbbb6;hp=fd3f21277f5010023dd90f609b1a0a71be06d6d3;hpb=0ab6decf2ce8bae6290967b6f0a3252dc86c4c55;p=openvswitch

diff --git a/ofproto/ofproto-dpif.c b/ofproto/ofproto-dpif.c
index fd3f2127..2f8d404b 100644
--- a/ofproto/ofproto-dpif.c
+++ b/ofproto/ofproto-dpif.c
@@ -266,6 +266,7 @@ static void facet_update_time(struct ofproto_dpif *, struct facet *,
                               long long int used);
 static void facet_update_stats(struct ofproto_dpif *, struct facet *,
                                const struct dpif_flow_stats *);
+static void facet_reset_dp_stats(struct facet *, struct dpif_flow_stats *);
 static void facet_push_stats(struct facet *);
 static void facet_account(struct ofproto_dpif *, struct facet *,
                           uint64_t extra_bytes);
@@ -743,7 +744,7 @@ set_cfm(struct ofport *ofport_, const struct cfm_settings *s)
         error = 0;
     } else {
         if (!ofport->cfm) {
-            ofport->cfm = cfm_create();
+            ofport->cfm = cfm_create(netdev_get_name(ofport->up.netdev));
         }
 
         if (cfm_configure(ofport->cfm, s)) {
@@ -1544,19 +1545,19 @@ process_special(struct ofproto_dpif *ofproto, const struct flow *flow,
 {
     if (cfm_should_process_flow(flow)) {
         struct ofport_dpif *ofport = get_ofp_port(ofproto, flow->in_port);
-        if (ofport && ofport->cfm) {
+        if (packet && ofport && ofport->cfm) {
             cfm_process_heartbeat(ofport->cfm, packet);
         }
         return true;
     } else if (flow->dl_type == htons(ETH_TYPE_LACP)) {
         struct ofport_dpif *port = get_ofp_port(ofproto, flow->in_port);
-        if (port && port->bundle && port->bundle->lacp) {
+        if (packet && port && port->bundle && port->bundle->lacp) {
             const struct lacp_pdu *pdu = parse_lacp_packet(packet);
             if (pdu) {
                 lacp_process_pdu(port->bundle->lacp, port, pdu);
             }
-            return true;
         }
+        return true;
     }
     return false;
 }
@@ -2084,6 +2085,12 @@ facet_make_actions(struct ofproto_dpif *p, struct facet *facet,
     ofpbuf_delete(odp_actions);
 }
 
+/* Updates 'facet''s flow in the datapath setting its actions to 'actions_len'
+ * bytes of actions in 'actions'.  If 'stats' is non-null, statistics counters
+ * in the datapath will be zeroed and 'stats' will be updated with traffic new
+ * since 'facet' was last updated.
+ *
+ * Returns 0 if successful, otherwise a positive errno value.*/
 static int
 facet_put__(struct ofproto_dpif *ofproto, struct facet *facet,
             const struct nlattr *actions, size_t actions_len,
@@ -2092,19 +2099,24 @@ facet_put__(struct ofproto_dpif *ofproto, struct facet *facet,
     struct odputil_keybuf keybuf;
     enum dpif_flow_put_flags flags;
     struct ofpbuf key;
+    int ret;
 
     flags = DPIF_FP_CREATE | DPIF_FP_MODIFY;
     if (stats) {
         flags |= DPIF_FP_ZERO_STATS;
-        facet->dp_packet_count = 0;
-        facet->dp_byte_count = 0;
     }
 
     ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
     odp_flow_key_from_flow(&key, &facet->flow);
 
-    return dpif_flow_put(ofproto->dpif, flags, key.data, key.size,
-                         actions, actions_len, stats);
+    ret = dpif_flow_put(ofproto->dpif, flags, key.data, key.size,
+                        actions, actions_len, stats);
+
+    if (stats) {
+        facet_reset_dp_stats(facet, stats);
+    }
+
+    return ret;
 }
 
 /* If 'facet' is installable, inserts or re-inserts it into 'p''s datapath.  If
@@ -2203,16 +2215,17 @@ facet_uninstall(struct ofproto_dpif *p, struct facet *facet)
         struct odputil_keybuf keybuf;
         struct dpif_flow_stats stats;
         struct ofpbuf key;
+        int error;
 
         ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
         odp_flow_key_from_flow(&key, &facet->flow);
 
-        if (!dpif_flow_del(p->dpif, key.data, key.size, &stats)) {
+        error = dpif_flow_del(p->dpif, key.data, key.size, &stats);
+        facet_reset_dp_stats(facet, &stats);
+        if (!error) {
             facet_update_stats(p, facet, &stats);
         }
         facet->installed = false;
-        facet->dp_packet_count = 0;
-        facet->dp_byte_count = 0;
     } else {
         assert(facet->dp_packet_count == 0);
         assert(facet->dp_byte_count == 0);
@@ -2231,6 +2244,24 @@ facet_is_controller_flow(struct facet *facet)
                                       htons(OFPP_CONTROLLER)));
 }
 
+/* Resets 'facet''s datapath statistics counters.  This should be called when
+ * 'facet''s statistics are cleared in the datapath.  If 'stats' is non-null,
+ * it should contain the statistics returned by dpif when 'facet' was reset in
+ * the datapath.  'stats' will be modified to only included statistics new
+ * since 'facet' was last updated. */
+static void
+facet_reset_dp_stats(struct facet *facet, struct dpif_flow_stats *stats)
+{
+    if (stats && facet->dp_packet_count <= stats->n_packets
+        && facet->dp_byte_count <= stats->n_bytes) {
+        stats->n_packets -= facet->dp_packet_count;
+        stats->n_bytes -= facet->dp_byte_count;
+    }
+
+    facet->dp_packet_count = 0;
+    facet->dp_byte_count = 0;
+}
+
 /* Folds all of 'facet''s statistics into its rule.  Also updates the
  * accounting ofhook and emits a NetFlow expiration if appropriate.  All of
  * 'facet''s statistics in the datapath should have been zeroed and folded into