datapath: Always use generic stats for devices (vports)

[sliver-openvswitch.git] / lib / learning-switch.c

diff --git a/lib/learning-switch.c b/lib/learning-switch.c
index cbd24cb..b260862 100644 (file)
--- a/lib/learning-switch.c
+++ b/lib/learning-switch.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -100,14 +100,22 @@ lswitch_create(struct rconn *rconn, const struct lswitch_config *cfg)
     sw->action_normal = cfg->mode == LSW_NORMAL;
 
     flow_wildcards_init_exact(&sw->wc);
-    if (!cfg->exact_flows) {
-        /* We cannot wildcard all fields.
-         * We need in_port to detect moves.
-         * We need both SA and DA to do learning. */
-        sw->wc.wildcards = (FWW_DL_TYPE | FWW_NW_PROTO
-                            | FWW_TP_SRC | FWW_TP_DST);
-        sw->wc.nw_src_mask = htonl(0);
-        sw->wc.nw_dst_mask = htonl(0);
+    if (cfg->wildcards) {
+        uint32_t ofpfw;
+
+        if (cfg->wildcards == UINT32_MAX) {
+            /* Try to wildcard as many fields as possible, but we cannot
+             * wildcard all fields.  We need in_port to detect moves.  We need
+             * Ethernet source and dest and VLAN VID to do L2 learning. */
+            ofpfw = (OFPFW_DL_TYPE | OFPFW_DL_VLAN_PCP
+                     | OFPFW_NW_SRC_ALL | OFPFW_NW_DST_ALL
+                     | OFPFW_NW_TOS | OFPFW_NW_PROTO
+                     | OFPFW_TP_SRC | OFPFW_TP_DST);
+        } else {
+            ofpfw = cfg->wildcards;
+        }
+
+        ofputil_wildcard_from_openflow(ofpfw, &sw->wc);
     }
 
     sw->default_queue = cfg->default_queue;
@@ -131,10 +139,17 @@ lswitch_create(struct rconn *rconn, const struct lswitch_config *cfg)
         const struct ofpbuf *b;
 
         LIST_FOR_EACH (b, list_node, cfg->default_flows) {
-            queue_tx(sw, rconn, ofpbuf_clone(b));
+            struct ofpbuf *copy = ofpbuf_clone(b);
+            int error = rconn_send(rconn, copy, NULL);
+            if (error) {
+                VLOG_INFO_RL(&rl, "%s: failed to queue default flows (%s)",
+                             rconn_get_name(rconn), strerror(error));
+                ofpbuf_delete(copy);
+                break;
+            }
         }
     }
-    
+
     return sw;
 }
 
@@ -210,7 +225,7 @@ lswitch_process_packet(struct lswitch *sw, struct rconn *rconn,
         /* Nothing to do. */
         break;
 
-    case OFPUTIL_INVALID:
+    case OFPUTIL_MSG_INVALID:
     case OFPUTIL_OFPT_HELLO:
     case OFPUTIL_OFPT_ERROR:
     case OFPUTIL_OFPT_ECHO_REPLY:
@@ -238,11 +253,9 @@ lswitch_process_packet(struct lswitch *sw, struct rconn *rconn,
     case OFPUTIL_OFPST_PORT_REPLY:
     case OFPUTIL_OFPST_TABLE_REPLY:
     case OFPUTIL_OFPST_AGGREGATE_REPLY:
-    case OFPUTIL_NXT_STATUS_REQUEST:
-    case OFPUTIL_NXT_STATUS_REPLY:
-    case OFPUTIL_NXT_TUN_ID_FROM_COOKIE:
     case OFPUTIL_NXT_ROLE_REQUEST:
     case OFPUTIL_NXT_ROLE_REPLY:
+    case OFPUTIL_NXT_FLOW_MOD_TABLE_ID:
     case OFPUTIL_NXT_SET_FLOW_FORMAT:
     case OFPUTIL_NXT_FLOW_MOD:
     case OFPUTIL_NXT_FLOW_REMOVED:
@@ -326,12 +339,15 @@ lswitch_choose_destination(struct lswitch *sw, const struct flow *flow)
     uint16_t out_port;
 
     /* Learn the source MAC. */
-    if (sw->ml) {
-        if (mac_learning_learn(sw->ml, flow->dl_src, 0, flow->in_port,
-                               GRAT_ARP_LOCK_NONE)) {
+    if (mac_learning_may_learn(sw->ml, flow->dl_src, 0)) {
+        struct mac_entry *mac = mac_learning_insert(sw->ml, flow->dl_src, 0);
+        if (mac_entry_is_new(mac) || mac->port.i != flow->in_port) {
             VLOG_DBG_RL(&rl, "%016llx: learned that "ETH_ADDR_FMT" is on "
                         "port %"PRIu16, sw->datapath_id,
                         ETH_ADDR_ARGS(flow->dl_src), flow->in_port);
+
+            mac->port.i = flow->in_port;
+            mac_learning_changed(sw->ml, mac);
         }
     }
 
@@ -342,9 +358,11 @@ lswitch_choose_destination(struct lswitch *sw, const struct flow *flow)
 
     out_port = OFPP_FLOOD;
     if (sw->ml) {
-        int learned_port = mac_learning_lookup(sw->ml, flow->dl_dst, 0, NULL);
-        if (learned_port >= 0) {
-            out_port = learned_port;
+        struct mac_entry *mac;
+
+        mac = mac_learning_lookup(sw->ml, flow->dl_dst, 0, NULL);
+        if (mac) {
+            out_port = mac->port.i;
             if (out_port == flow->in_port) {
                 /* Don't send a packet back out its input port. */
                 return OFPP_NONE;
@@ -400,8 +418,7 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
     /* Extract flow data from 'opi' into 'flow'. */
     pkt_ofs = offsetof(struct ofp_packet_in, data);
     pkt_len = ntohs(opi->header.length) - pkt_ofs;
-    pkt.data = (void *) opi->data;
-    pkt.size = pkt_len;
+    ofpbuf_use_const(&pkt, opi->data, pkt_len);
     flow_extract(&pkt, 0, in_port, &flow);
 
     /* Choose output port. */
@@ -438,7 +455,6 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
     /* Send the packet, and possibly the whole flow, to the output port. */
     if (sw->max_idle >= 0 && (!sw->ml || out_port != OFPP_FLOOD)) {
         struct ofpbuf *buffer;
-        struct ofp_flow_mod *ofm;
         struct cls_rule rule;
 
         /* The output port is known, or we always flood everything, so add a
@@ -447,7 +463,6 @@ process_packet_in(struct lswitch *sw, struct rconn *rconn,
         buffer = make_add_flow(&rule, ntohl(opi->buffer_id),
                                sw->max_idle, actions_len);
         ofpbuf_put(buffer, actions, actions_len);
-        ofm = buffer->data;
         queue_tx(sw, rconn, buffer);
 
         /* If the switch didn't buffer the packet, we need to send a copy. */