ofproto: New helper macro OFPROTO_FOR_EACH_TABLE.

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

diff --git a/ofproto/ofproto.c b/ofproto/ofproto.c
index 6203676..2dd3c9f 100644 (file)
--- a/ofproto/ofproto.c
+++ b/ofproto/ofproto.c
@@ -289,7 +289,9 @@ ofproto_create(const char *datapath_name, const char *datapath_type,
                struct ofproto **ofprotop)
 {
     const struct ofproto_class *class;
+    struct classifier *table;
     struct ofproto *ofproto;
+    int n_tables;
     int error;
 
     *ofprotop = NULL;
@@ -337,14 +339,20 @@ ofproto_create(const char *datapath_name, const char *datapath_type,
     list_init(&ofproto->pending);
     hmap_init(&ofproto->deletions);
 
-    error = ofproto->ofproto_class->construct(ofproto);
+    error = ofproto->ofproto_class->construct(ofproto, &n_tables);
     if (error) {
         VLOG_ERR("failed to open datapath %s: %s",
                  datapath_name, strerror(error));
         ofproto_destroy__(ofproto);
         return error;
     }
-    assert(ofproto->n_tables > 0);
+
+    assert(n_tables >= 1 && n_tables <= 255);
+    ofproto->n_tables = n_tables;
+    ofproto->tables = xmalloc(n_tables * sizeof *ofproto->tables);
+    OFPROTO_FOR_EACH_TABLE (table, ofproto) {
+        classifier_init(table);
+    }
 
     ofproto->datapath_id = pick_datapath_id(ofproto);
     VLOG_INFO("using datapath ID %016"PRIx64, ofproto->datapath_id);
@@ -667,8 +675,7 @@ ofproto_flush__(struct ofproto *ofproto)
     }
 
     group = ofopgroup_create(ofproto);
-    for (table = ofproto->tables; table < &ofproto->tables[ofproto->n_tables];
-         table++) {
+    OFPROTO_FOR_EACH_TABLE (table, ofproto) {
         struct rule *rule, *next_rule;
         struct cls_cursor cursor;
 
@@ -687,7 +694,7 @@ ofproto_flush__(struct ofproto *ofproto)
 static void
 ofproto_destroy__(struct ofproto *ofproto)
 {
-    size_t i;
+    struct classifier *table;
 
     assert(list_is_empty(&ofproto->pending));
 
@@ -704,9 +711,9 @@ ofproto_destroy__(struct ofproto *ofproto)
     hmap_destroy(&ofproto->ports);
     shash_destroy(&ofproto->port_by_name);
 
-    for (i = 0; i < ofproto->n_tables; i++) {
-        assert(classifier_is_empty(&ofproto->tables[i]));
-        classifier_destroy(&ofproto->tables[i]);
+    OFPROTO_FOR_EACH_TABLE (table, ofproto) {
+        assert(classifier_is_empty(table));
+        classifier_destroy(table);
     }
     free(ofproto->tables);
 
@@ -1948,7 +1955,7 @@ ofproto_get_all_flows(struct ofproto *p, struct ds *results)
 {
     struct classifier *cls;
 
-    for (cls = &p->tables[0]; cls < &p->tables[p->n_tables]; cls++) {
+    OFPROTO_FOR_EACH_TABLE (cls, p) {
         struct cls_cursor cursor;
         struct rule *rule;
 
@@ -2174,7 +2181,7 @@ add_flow(struct ofproto *ofproto, struct ofconn *ofconn, struct flow_mod *fm,
     /* Pick table. */
     if (fm->table_id == 0xff) {
         uint8_t table_id;
-        if (ofproto->n_tables > 1) {
+        if (ofproto->ofproto_class->rule_choose_table) {
             error = ofproto->ofproto_class->rule_choose_table(ofproto, &fm->cr,
                                                               &table_id);
             if (error) {