ofproto: Handle flow installation and eviction in upcall.

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

diff --git a/ofproto/ofproto.c b/ofproto/ofproto.c
index e9bbc4d..75461e2 100644 (file)
--- a/ofproto/ofproto.c
+++ b/ofproto/ofproto.c
@@ -306,10 +306,10 @@ static size_t allocated_ofproto_classes;
 /* Global lock that protects all flow table operations. */
 struct ovs_mutex ofproto_mutex = OVS_MUTEX_INITIALIZER;
 
-unsigned flow_eviction_threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT;
+unsigned ofproto_flow_limit = OFPROTO_FLOW_LIMIT_DEFAULT;
 enum ofproto_flow_miss_model flow_miss_model = OFPROTO_HANDLE_MISS_AUTO;
 
-size_t n_handlers;
+size_t n_handlers, n_revalidators;
 
 /* Map from datapath name to struct ofproto, for use by unixctl commands. */
 static struct hmap all_ofprotos = HMAP_INITIALIZER(&all_ofprotos);
@@ -693,10 +693,9 @@ ofproto_set_in_band_queue(struct ofproto *ofproto, int queue_id)
 /* Sets the number of flows at which eviction from the kernel flow table
  * will occur. */
 void
-ofproto_set_flow_eviction_threshold(unsigned threshold)
+ofproto_set_flow_limit(unsigned limit)
 {
-    flow_eviction_threshold = MAX(OFPROTO_FLOW_EVICTION_THRESHOLD_MIN,
-                                  threshold);
+    ofproto_flow_limit = limit;
 }
 
 /* Sets the path for handling flow misses. */
@@ -734,13 +733,23 @@ ofproto_set_mac_table_config(struct ofproto *ofproto, unsigned idle_time,
     }
 }
 
-/* Sets number of upcall handler threads.  The default is
- * (number of online cores - 2). */
 void
-ofproto_set_threads(size_t n_handlers_)
+ofproto_set_threads(size_t n_handlers_, size_t n_revalidators_)
 {
-    int threads = MAX(count_cpu_cores() - 2, 1);
-    n_handlers = n_handlers_ ? n_handlers_ : threads;
+    int threads = MAX(count_cpu_cores(), 2);
+
+    n_revalidators = n_revalidators_;
+    n_handlers = n_handlers_;
+
+    if (!n_revalidators) {
+        n_revalidators = n_handlers
+            ? MAX(threads - (int) n_handlers, 1)
+            : threads / 4 + 1;
+    }
+
+    if (!n_handlers) {
+        n_handlers = MAX(threads - (int) n_revalidators, 1);
+    }
 }
 
 void
@@ -1513,7 +1522,7 @@ ofproto_run(struct ofproto *p)
         break;
 
     default:
-        NOT_REACHED();
+        OVS_NOT_REACHED();
     }
 
     if (time_msec() >= p->next_op_report) {
@@ -2666,7 +2675,7 @@ ofoperation_has_out_port(const struct ofoperation *op, ofp_port_t out_port)
                                       op->actions->ofpacts_len, out_port);
     }
 
-    NOT_REACHED();
+    OVS_NOT_REACHED();
 }
 
 static void
@@ -4722,7 +4731,7 @@ ofproto_compose_flow_refresh_update(const struct rule *rule,
          * actions, so that when the operation commits we report the change. */
         switch (op->type) {
         case OFOPERATION_ADD:
-            NOT_REACHED();
+            OVS_NOT_REACHED();
 
         case OFOPERATION_MODIFY:
         case OFOPERATION_REPLACE:
@@ -4734,7 +4743,7 @@ ofproto_compose_flow_refresh_update(const struct rule *rule,
             break;
 
         default:
-            NOT_REACHED();
+            OVS_NOT_REACHED();
         }
     }
     fu.ofpacts = actions ? actions->ofpacts : NULL;
@@ -5772,9 +5781,32 @@ handle_group_mod(struct ofconn *ofconn, const struct ofp_header *oh)
     }
 }
 
+static enum ofperr
+table_mod(struct ofproto *ofproto, const struct ofputil_table_mod *tm)
+{
+    /* XXX Reject all configurations because none are currently supported */
+    return OFPERR_OFPTMFC_BAD_CONFIG;
+
+    if (tm->table_id == OFPTT_ALL) {
+        int i;
+        for (i = 0; i < ofproto->n_tables; i++) {
+            atomic_store(&ofproto->tables[i].config,
+                         (unsigned int)tm->config);
+        }
+    } else if (!check_table_id(ofproto, tm->table_id)) {
+        return OFPERR_OFPTMFC_BAD_TABLE;
+    } else {
+        atomic_store(&ofproto->tables[tm->table_id].config,
+                     (unsigned int)tm->config);
+    }
+
+    return 0;
+}
+
 static enum ofperr
 handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh)
 {
+    struct ofproto *ofproto = ofconn_get_ofproto(ofconn);
     struct ofputil_table_mod tm;
     enum ofperr error;
 
@@ -5788,8 +5820,7 @@ handle_table_mod(struct ofconn *ofconn, const struct ofp_header *oh)
         return error;
     }
 
-    /* XXX Actual table mod support is not implemented yet. */
-    return 0;
+    return table_mod(ofproto, &tm);
 }
 
 static enum ofperr
@@ -6139,7 +6170,7 @@ ofopgroup_complete(struct ofopgroup *group)
                 break;
 
             default:
-                NOT_REACHED();
+                OVS_NOT_REACHED();
             }
 
             ofmonitor_report(ofproto->connmgr, rule, event_type,
@@ -6208,7 +6239,7 @@ ofopgroup_complete(struct ofopgroup *group)
             break;
 
         default:
-            NOT_REACHED();
+            OVS_NOT_REACHED();
         }
 
         ofoperation_destroy(op);
@@ -6622,6 +6653,7 @@ oftable_init(struct oftable *table)
     memset(table, 0, sizeof *table);
     classifier_init(&table->cls, flow_segment_u32s);
     table->max_flows = UINT_MAX;
+    atomic_init(&table->config, (unsigned int)OFPTC11_TABLE_MISS_CONTROLLER);
 }
 
 /* Destroys 'table', including its classifier and eviction groups.