mac-learning: Implement per-port MAC learning fairness.
[cascardo/ovs.git] / ofproto / ofproto-dpif.c
index 69eee4b..d83f887 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
+ * Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,6 +37,7 @@
 #include "lacp.h"
 #include "learn.h"
 #include "mac-learning.h"
+#include "mcast-snooping.h"
 #include "meta-flow.h"
 #include "multipath.h"
 #include "netdev-vport.h"
@@ -58,6 +59,8 @@
 #include "ofproto-dpif-upcall.h"
 #include "ofproto-dpif-xlate.h"
 #include "poll-loop.h"
+#include "ovs-rcu.h"
+#include "ovs-router.h"
 #include "seq.h"
 #include "simap.h"
 #include "smap.h"
 #include "unaligned.h"
 #include "unixctl.h"
 #include "vlan-bitmap.h"
-#include "vlog.h"
+#include "openvswitch/vlog.h"
 
 VLOG_DEFINE_THIS_MODULE(ofproto_dpif);
 
 COVERAGE_DEFINE(ofproto_dpif_expired);
 COVERAGE_DEFINE(packet_in_overflow);
 
-/* No bfd/cfm status change. */
-#define NO_STATUS_CHANGE -1
-
 struct flow_miss;
 
 struct rule_dpif {
@@ -122,7 +122,7 @@ struct ofbundle {
     char *name;                 /* Identifier for log messages. */
 
     /* Configuration. */
-    struct list ports;          /* Contains "struct ofport"s. */
+    struct ovs_list ports;      /* Contains "struct ofport"s. */
     enum port_vlan_mode vlan_mode; /* VLAN mode */
     int vlan;                   /* -1=trunk port, else a 12-bit VLAN ID. */
     unsigned long *trunks;      /* Bitmap of trunked VLANs, if 'vlan' == -1.
@@ -141,19 +141,25 @@ static void bundle_destroy(struct ofbundle *);
 static void bundle_del_port(struct ofport_dpif *);
 static void bundle_run(struct ofbundle *);
 static void bundle_wait(struct ofbundle *);
+static void bundle_flush_macs(struct ofbundle *, bool);
+static void bundle_move(struct ofbundle *, struct ofbundle *);
 
 static void stp_run(struct ofproto_dpif *ofproto);
 static void stp_wait(struct ofproto_dpif *ofproto);
 static int set_stp_port(struct ofport *,
                         const struct ofproto_port_stp_settings *);
 
+static void rstp_run(struct ofproto_dpif *ofproto);
+static void set_rstp_port(struct ofport *,
+                         const struct ofproto_port_rstp_settings *);
+
 struct ofport_dpif {
     struct hmap_node odp_port_node; /* In dpif_backer's "odp_to_ofport_map". */
     struct ofport up;
 
     odp_port_t odp_port;
     struct ofbundle *bundle;    /* Bundle that contains this port, if any. */
-    struct list bundle_node;    /* In struct ofbundle's "ports" list. */
+    struct ovs_list bundle_node;/* In struct ofbundle's "ports" list. */
     struct cfm *cfm;            /* Connectivity Fault Management, if any. */
     struct bfd *bfd;            /* BFD, if any. */
     bool may_enable;            /* May be enabled in bonds. */
@@ -167,6 +173,10 @@ struct ofport_dpif {
     enum stp_state stp_state;   /* Always STP_DISABLED if STP not in use. */
     long long int stp_state_entered;
 
+    /* Rapid Spanning Tree. */
+    struct rstp_port *rstp_port; /* Rapid Spanning Tree Protocol, if any. */
+    enum rstp_state rstp_state; /* Always RSTP_DISABLED if RSTP not in use. */
+
     /* Queue to DSCP mapping. */
     struct ofproto_port_queue *qdscp;
     size_t n_qdscp;
@@ -226,17 +236,28 @@ static void ofport_update_peer(struct ofport_dpif *);
 enum revalidate_reason {
     REV_RECONFIGURE = 1,       /* Switch configuration changed. */
     REV_STP,                   /* Spanning tree protocol port status change. */
+    REV_RSTP,                  /* RSTP port status change. */
     REV_BOND,                  /* Bonding changed. */
     REV_PORT_TOGGLED,          /* Port enabled or disabled by CFM, LACP, ...*/
     REV_FLOW_TABLE,            /* Flow table changed. */
     REV_MAC_LEARNING,          /* Mac learning changed. */
+    REV_MCAST_SNOOPING,        /* Multicast snooping changed. */
 };
 COVERAGE_DEFINE(rev_reconfigure);
 COVERAGE_DEFINE(rev_stp);
+COVERAGE_DEFINE(rev_rstp);
 COVERAGE_DEFINE(rev_bond);
 COVERAGE_DEFINE(rev_port_toggled);
 COVERAGE_DEFINE(rev_flow_table);
 COVERAGE_DEFINE(rev_mac_learning);
+COVERAGE_DEFINE(rev_mcast_snooping);
+
+/* Stores mapping between 'recirc_id' and 'ofproto-dpif'. */
+struct dpif_backer_recirc_node {
+    struct cmap_node cmap_node;
+    struct ofproto_dpif *ofproto;
+    uint32_t recirc_id;
+};
 
 /* All datapaths of a given type share a single dpif backer instance. */
 struct dpif_backer {
@@ -256,16 +277,32 @@ struct dpif_backer {
 
     /* Recirculation. */
     struct recirc_id_pool *rid_pool;       /* Recirculation ID pool. */
+    struct cmap recirc_map;         /* Map of 'recirc_id's to 'ofproto's. */
+    struct ovs_mutex recirc_mutex;  /* Protects 'recirc_map'. */
     bool enable_recirc;   /* True if the datapath supports recirculation */
 
+    /* True if the datapath supports unique flow identifiers */
+    bool enable_ufid;
+
     /* True if the datapath supports variable-length
      * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions.
      * False if the datapath supports only 8-byte (or shorter) userdata. */
     bool variable_length_userdata;
 
+    /* True if the datapath supports masked data in OVS_ACTION_ATTR_SET
+     * actions. */
+    bool masked_set_action;
+
     /* Maximum number of MPLS label stack entries that the datapath supports
      * in a match */
     size_t max_mpls_depth;
+
+    /* Version string of the datapath stored in OVSDB. */
+    char *dp_version_string;
+
+    /* True if the datapath supports tnl_push and pop actions. */
+    bool enable_tnl_push_pop;
+    struct atomic_count tnl_count;
 };
 
 /* All existing ofproto_backer instances, indexed by ofproto->up.type. */
@@ -289,6 +326,7 @@ struct ofproto_dpif {
     struct dpif_ipfix *ipfix;
     struct hmap bundles;        /* Contains "struct ofbundle"s. */
     struct mac_learning *ml;
+    struct mcast_snooping *ms;
     bool has_bonded_bundles;
     bool lacp_enabled;
     struct mbridge *mbridge;
@@ -301,6 +339,10 @@ struct ofproto_dpif {
     struct stp *stp;
     long long int stp_last_tick;
 
+    /* Rapid Spanning Tree. */
+    struct rstp *rstp;
+    long long int rstp_last_tick;
+
     /* VLAN splinters. */
     struct ovs_mutex vsp_mutex;
     struct hmap realdev_vid_map OVS_GUARDED; /* (realdev,vid) -> vlandev. */
@@ -322,7 +364,8 @@ struct ofproto_dpif {
 /* All existing ofproto_dpif instances, indexed by ->up.name. */
 static struct hmap all_ofproto_dpifs = HMAP_INITIALIZER(&all_ofproto_dpifs);
 
-static void ofproto_dpif_unixctl_init(void);
+static bool ofproto_use_tnl_push_pop = true;
+static void ofproto_unixctl_init(void);
 
 static inline struct ofproto_dpif *
 ofproto_dpif_cast(const struct ofproto *ofproto)
@@ -343,6 +386,12 @@ ofproto_dpif_get_enable_recirc(const struct ofproto_dpif *ofproto)
     return ofproto->backer->enable_recirc;
 }
 
+bool
+ofproto_dpif_get_enable_ufid(struct dpif_backer *backer)
+{
+    return backer->enable_ufid;
+}
+
 static struct ofport_dpif *get_ofp_port(const struct ofproto_dpif *ofproto,
                                         ofp_port_t ofp_port);
 static void ofproto_trace(struct ofproto_dpif *, struct flow *,
@@ -489,7 +538,12 @@ type_run(const char *type)
         return 0;
     }
 
-    dpif_run(backer->dpif);
+
+    if (dpif_run(backer->dpif)) {
+        backer->need_revalidate = REV_RECONFIGURE;
+    }
+
+    udpif_run(backer->udpif);
 
     /* If vswitchd started with other_config:flow_restore_wait set as "true",
      * and the configuration has now changed to "false", enable receiving
@@ -512,6 +566,8 @@ type_run(const char *type)
         udpif_set_threads(backer->udpif, n_handlers, n_revalidators);
     }
 
+    dpif_poll_threads_set(backer->dpif, n_dpdk_rxqs, pmd_cpu_mask);
+
     if (backer->need_revalidate) {
         struct ofproto_dpif *ofproto;
         struct simap_node *node;
@@ -559,7 +615,8 @@ type_run(const char *type)
 
                 iter->odp_port = node ? u32_to_odp(node->data) : ODPP_NONE;
                 if (tnl_port_reconfigure(iter, iter->up.netdev,
-                                         iter->odp_port)) {
+                                         iter->odp_port,
+                                         ovs_native_tunneling_is_on(ofproto), dp_port)) {
                     backer->need_revalidate = REV_RECONFIGURE;
                 }
             }
@@ -573,10 +630,12 @@ type_run(const char *type)
         switch (backer->need_revalidate) {
         case REV_RECONFIGURE:    COVERAGE_INC(rev_reconfigure);    break;
         case REV_STP:            COVERAGE_INC(rev_stp);            break;
+        case REV_RSTP:           COVERAGE_INC(rev_rstp);           break;
         case REV_BOND:           COVERAGE_INC(rev_bond);           break;
         case REV_PORT_TOGGLED:   COVERAGE_INC(rev_port_toggled);   break;
         case REV_FLOW_TABLE:     COVERAGE_INC(rev_flow_table);     break;
         case REV_MAC_LEARNING:   COVERAGE_INC(rev_mac_learning);   break;
+        case REV_MCAST_SNOOPING: COVERAGE_INC(rev_mcast_snooping); break;
         }
         backer->need_revalidate = 0;
 
@@ -590,16 +649,16 @@ type_run(const char *type)
 
             xlate_txn_start();
             xlate_ofproto_set(ofproto, ofproto->up.name,
-                              ofproto->backer->dpif, ofproto->miss_rule,
-                              ofproto->no_packet_in_rule, ofproto->ml,
-                              ofproto->stp, ofproto->mbridge,
-                              ofproto->sflow, ofproto->ipfix,
-                              ofproto->netflow, ofproto->up.frag_handling,
+                              ofproto->backer->dpif, ofproto->ml,
+                              ofproto->stp, ofproto->rstp, ofproto->ms,
+                              ofproto->mbridge, ofproto->sflow, ofproto->ipfix,
+                              ofproto->netflow,
                               ofproto->up.forward_bpdu,
                               connmgr_has_in_band(ofproto->up.connmgr),
                               ofproto->backer->enable_recirc,
                               ofproto->backer->variable_length_userdata,
-                              ofproto->backer->max_mpls_depth);
+                              ofproto->backer->max_mpls_depth,
+                              ofproto->backer->masked_set_action);
 
             HMAP_FOR_EACH (bundle, hmap_node, &ofproto->bundles) {
                 xlate_bundle_set(ofproto, bundle, bundle->name,
@@ -617,9 +676,10 @@ type_run(const char *type)
                                  ofport->up.ofp_port, ofport->odp_port,
                                  ofport->up.netdev, ofport->cfm,
                                  ofport->bfd, ofport->peer, stp_port,
-                                 ofport->qdscp, ofport->n_qdscp,
-                                 ofport->up.pp.config, ofport->up.pp.state,
-                                 ofport->is_tunnel, ofport->may_enable);
+                                 ofport->rstp_port, ofport->qdscp,
+                                 ofport->n_qdscp, ofport->up.pp.config,
+                                 ofport->up.pp.state, ofport->is_tunnel,
+                                 ofport->may_enable);
             }
             xlate_txn_commit();
         }
@@ -794,6 +854,27 @@ dealloc(struct ofproto *ofproto_)
     free(ofproto);
 }
 
+/* Called when 'ofproto' is destructed.  Checks for and clears any
+ * recirc_id leak. */
+static void
+dpif_backer_recirc_clear_ofproto(struct dpif_backer *backer,
+                                 struct ofproto_dpif *ofproto)
+{
+    struct dpif_backer_recirc_node *node;
+
+    ovs_mutex_lock(&backer->recirc_mutex);
+    CMAP_FOR_EACH (node, cmap_node, &backer->recirc_map) {
+        if (node->ofproto == ofproto) {
+            VLOG_ERR("recirc_id %"PRIu32", not freed when ofproto (%s) "
+                     "is destructed", node->recirc_id, ofproto->up.name);
+            cmap_remove(&backer->recirc_map, &node->cmap_node,
+                        node->recirc_id);
+            ovsrcu_postpone(free, node);
+        }
+    }
+    ovs_mutex_unlock(&backer->recirc_mutex);
+}
+
 static void
 close_dpif_backer(struct dpif_backer *backer)
 {
@@ -810,20 +891,25 @@ close_dpif_backer(struct dpif_backer *backer)
     hmap_destroy(&backer->odp_to_ofport_map);
     shash_find_and_delete(&all_dpif_backers, backer->type);
     recirc_id_pool_destroy(backer->rid_pool);
+    cmap_destroy(&backer->recirc_map);
+    ovs_mutex_destroy(&backer->recirc_mutex);
     free(backer->type);
+    free(backer->dp_version_string);
     dpif_close(backer->dpif);
     free(backer);
 }
 
 /* Datapath port slated for removal from datapath. */
 struct odp_garbage {
-    struct list list_node;
+    struct ovs_list list_node;
     odp_port_t odp_port;
 };
 
 static bool check_variable_length_userdata(struct dpif_backer *backer);
 static size_t check_max_mpls_depth(struct dpif_backer *backer);
 static bool check_recirc(struct dpif_backer *backer);
+static bool check_ufid(struct dpif_backer *backer);
+static bool check_masked_set_action(struct dpif_backer *backer);
 
 static int
 open_dpif_backer(const char *type, struct dpif_backer **backerp)
@@ -832,7 +918,7 @@ open_dpif_backer(const char *type, struct dpif_backer **backerp)
     struct dpif_port_dump port_dump;
     struct dpif_port port;
     struct shash_node *node;
-    struct list garbage_list;
+    struct ovs_list garbage_list;
     struct odp_garbage *garbage, *next;
 
     struct sset names;
@@ -917,6 +1003,17 @@ open_dpif_backer(const char *type, struct dpif_backer **backerp)
 
     shash_add(&all_dpif_backers, type, backer);
 
+    backer->enable_recirc = check_recirc(backer);
+    backer->max_mpls_depth = check_max_mpls_depth(backer);
+    backer->masked_set_action = check_masked_set_action(backer);
+    backer->enable_ufid = check_ufid(backer);
+    backer->rid_pool = recirc_id_pool_create();
+    ovs_mutex_init(&backer->recirc_mutex);
+    cmap_init(&backer->recirc_map);
+
+    backer->enable_tnl_push_pop = dpif_supports_tnl_push_pop(backer->dpif);
+    atomic_count_init(&backer->tnl_count, 0);
+
     error = dpif_recv_set(backer->dpif, backer->recv_set_enable);
     if (error) {
         VLOG_ERR("failed to listen on datapath of type %s: %s",
@@ -924,18 +1021,27 @@ open_dpif_backer(const char *type, struct dpif_backer **backerp)
         close_dpif_backer(backer);
         return error;
     }
-    backer->enable_recirc = check_recirc(backer);
-    backer->variable_length_userdata = check_variable_length_userdata(backer);
-    backer->max_mpls_depth = check_max_mpls_depth(backer);
-    backer->rid_pool = recirc_id_pool_create();
 
     if (backer->recv_set_enable) {
         udpif_set_threads(backer->udpif, n_handlers, n_revalidators);
     }
 
+    /* This check fails if performed before udpif threads have been set,
+     * as the kernel module checks that the 'pid' in userspace action
+     * is non-zero. */
+    backer->variable_length_userdata = check_variable_length_userdata(backer);
+    backer->dp_version_string = dpif_get_dp_version(backer->dpif);
+
     return error;
 }
 
+bool
+ovs_native_tunneling_is_on(struct ofproto_dpif *ofproto)
+{
+    return ofproto_use_tnl_push_pop && ofproto->backer->enable_tnl_push_pop &&
+           atomic_count_get(&ofproto->backer->tnl_count);
+}
+
 /* Tests whether 'backer''s datapath supports recirculation.  Only newer
  * datapaths support OVS_KEY_ATTR_RECIRC_ID in keys.  We need to disable some
  * features on older datapaths that don't support this feature.
@@ -949,8 +1055,7 @@ check_recirc(struct dpif_backer *backer)
     struct flow flow;
     struct odputil_keybuf keybuf;
     struct ofpbuf key;
-    int error;
-    bool enable_recirc = false;
+    bool enable_recirc;
 
     memset(&flow, 0, sizeof flow);
     flow.recirc_id = 1;
@@ -958,28 +1063,9 @@ check_recirc(struct dpif_backer *backer)
 
     ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
     odp_flow_key_from_flow(&key, &flow, NULL, 0, true);
+    enable_recirc = dpif_probe_feature(backer->dpif, "recirculation", &key,
+                                       NULL);
 
-    error = dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
-                          ofpbuf_data(&key), ofpbuf_size(&key), NULL, 0, NULL,
-                          0, NULL);
-    if (error && error != EEXIST) {
-        if (error != EINVAL) {
-            VLOG_WARN("%s: Reciculation flow probe failed (%s)",
-                      dpif_name(backer->dpif), ovs_strerror(error));
-        }
-        goto done;
-    }
-
-    error = dpif_flow_del(backer->dpif, ofpbuf_data(&key), ofpbuf_size(&key),
-                          NULL);
-    if (error) {
-        VLOG_WARN("%s: failed to delete recirculation feature probe flow",
-                  dpif_name(backer->dpif));
-    }
-
-    enable_recirc = true;
-
-done:
     if (enable_recirc) {
         VLOG_INFO("%s: Datapath supports recirculation",
                   dpif_name(backer->dpif));
@@ -991,6 +1077,39 @@ done:
     return enable_recirc;
 }
 
+/* Tests whether 'dpif' supports userspace flow ids. We can skip serializing
+ * some flow attributes for datapaths that support this feature.
+ *
+ * Returns true if 'dpif' supports UFID for flow operations.
+ * Returns false if  'dpif' does not support UFID. */
+static bool
+check_ufid(struct dpif_backer *backer)
+{
+    struct flow flow;
+    struct odputil_keybuf keybuf;
+    struct ofpbuf key;
+    ovs_u128 ufid;
+    bool enable_ufid;
+
+    memset(&flow, 0, sizeof flow);
+    flow.dl_type = htons(0x1234);
+
+    ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
+    odp_flow_key_from_flow(&key, &flow, NULL, 0, true);
+    dpif_flow_hash(backer->dpif, ofpbuf_data(&key), ofpbuf_size(&key), &ufid);
+
+    enable_ufid = dpif_probe_feature(backer->dpif, "UFID", &key, &ufid);
+
+    if (enable_ufid) {
+        VLOG_INFO("%s: Datapath supports userspace flow ids",
+                  dpif_name(backer->dpif));
+    } else {
+        VLOG_INFO("%s: Datapath does not support userspace flow ids",
+                  dpif_name(backer->dpif));
+    }
+    return enable_ufid;
+}
+
 /* Tests whether 'backer''s datapath supports variable-length
  * OVS_USERSPACE_ATTR_USERDATA in OVS_ACTION_ATTR_USERSPACE actions.  We need
  * to disable some features on older datapaths that don't support this
@@ -1035,6 +1154,7 @@ check_variable_length_userdata(struct dpif_backer *backer)
     execute.packet = &packet;
     execute.md = PKT_METADATA_INITIALIZER(0);
     execute.needs_help = false;
+    execute.probe = true;
 
     error = dpif_execute(backer->dpif, &execute);
 
@@ -1043,11 +1163,6 @@ check_variable_length_userdata(struct dpif_backer *backer)
 
     switch (error) {
     case 0:
-        /* Variable-length userdata is supported.
-         *
-         * Purge received packets to avoid processing the nonsense packet we
-         * sent to userspace, then report success. */
-        dpif_recv_purge(backer->dpif);
         return true;
 
     case ERANGE:
@@ -1083,7 +1198,6 @@ check_max_mpls_depth(struct dpif_backer *backer)
     for (n = 0; n < FLOW_MAX_MPLS_LABELS; n++) {
         struct odputil_keybuf keybuf;
         struct ofpbuf key;
-        int error;
 
         memset(&flow, 0, sizeof flow);
         flow.dl_type = htons(ETH_TYPE_MPLS);
@@ -1091,22 +1205,9 @@ check_max_mpls_depth(struct dpif_backer *backer)
 
         ofpbuf_use_stack(&key, &keybuf, sizeof keybuf);
         odp_flow_key_from_flow(&key, &flow, NULL, 0, false);
-
-        error = dpif_flow_put(backer->dpif, DPIF_FP_CREATE | DPIF_FP_MODIFY,
-                              ofpbuf_data(&key), ofpbuf_size(&key), NULL, 0, NULL, 0, NULL);
-        if (error && error != EEXIST) {
-            if (error != EINVAL) {
-                VLOG_WARN("%s: MPLS stack length feature probe failed (%s)",
-                          dpif_name(backer->dpif), ovs_strerror(error));
-            }
+        if (!dpif_probe_feature(backer->dpif, "MPLS", &key, NULL)) {
             break;
         }
-
-        error = dpif_flow_del(backer->dpif, ofpbuf_data(&key), ofpbuf_size(&key), NULL);
-        if (error) {
-            VLOG_WARN("%s: failed to delete MPLS feature probe flow",
-                      dpif_name(backer->dpif));
-        }
     }
 
     VLOG_INFO("%s: MPLS label stack length probed as %d",
@@ -1114,6 +1215,56 @@ check_max_mpls_depth(struct dpif_backer *backer)
     return n;
 }
 
+/* Tests whether 'backer''s datapath supports masked data in
+ * OVS_ACTION_ATTR_SET actions.  We need to disable some features on older
+ * datapaths that don't support this feature. */
+static bool
+check_masked_set_action(struct dpif_backer *backer)
+{
+    struct eth_header *eth;
+    struct ofpbuf actions;
+    struct dpif_execute execute;
+    struct ofpbuf packet;
+    int error;
+    struct ovs_key_ethernet key, mask;
+
+    /* Compose a set action that will cause an EINVAL error on older
+     * datapaths that don't support masked set actions.
+     * Avoid using a full mask, as it could be translated to a non-masked
+     * set action instead. */
+    ofpbuf_init(&actions, 64);
+    memset(&key, 0x53, sizeof key);
+    memset(&mask, 0x7f, sizeof mask);
+    commit_masked_set_action(&actions, OVS_KEY_ATTR_ETHERNET, &key, &mask,
+                             sizeof key);
+
+    /* Compose a dummy ethernet packet. */
+    ofpbuf_init(&packet, ETH_HEADER_LEN);
+    eth = ofpbuf_put_zeros(&packet, ETH_HEADER_LEN);
+    eth->eth_type = htons(0x1234);
+
+    /* Execute the actions.  On older datapaths this fails with EINVAL, on
+     * newer datapaths it succeeds. */
+    execute.actions = ofpbuf_data(&actions);
+    execute.actions_len = ofpbuf_size(&actions);
+    execute.packet = &packet;
+    execute.md = PKT_METADATA_INITIALIZER(0);
+    execute.needs_help = false;
+    execute.probe = true;
+
+    error = dpif_execute(backer->dpif, &execute);
+
+    ofpbuf_uninit(&packet);
+    ofpbuf_uninit(&actions);
+
+    if (error) {
+        /* Masked set action is not supported. */
+        VLOG_INFO("%s: datapath does not support masked set action feature.",
+                  dpif_name(backer->dpif));
+    }
+    return !error;
+}
+
 static int
 construct(struct ofproto *ofproto_)
 {
@@ -1121,6 +1272,9 @@ construct(struct ofproto *ofproto_)
     struct shash_node *node, *next;
     int error;
 
+    /* Tunnel module can get used right after the udpif threads are running. */
+    ofproto_tunnel_init();
+
     error = open_dpif_backer(ofproto->up.type, &ofproto->backer);
     if (error) {
         return error;
@@ -1130,9 +1284,11 @@ construct(struct ofproto *ofproto_)
     ofproto->sflow = NULL;
     ofproto->ipfix = NULL;
     ofproto->stp = NULL;
+    ofproto->rstp = NULL;
     ofproto->dump_seq = 0;
     hmap_init(&ofproto->bundles);
     ofproto->ml = mac_learning_create(MAC_ENTRY_DEFAULT_IDLE_TIME);
+    ofproto->ms = NULL;
     ofproto->mbridge = mbridge_create();
     ofproto->has_bonded_bundles = false;
     ofproto->lacp_enabled = false;
@@ -1141,7 +1297,7 @@ construct(struct ofproto *ofproto_)
 
     guarded_list_init(&ofproto->pins);
 
-    ofproto_dpif_unixctl_init();
+    ofproto_unixctl_init();
 
     hmap_init(&ofproto->vlandev_map);
     hmap_init(&ofproto->realdev_vid_map);
@@ -1241,30 +1397,28 @@ add_internal_flows(struct ofproto_dpif *ofproto)
         return error;
     }
 
-    /* Continue non-recirculation rule lookups from table 0.
+    /* Drop any run away non-recirc rule lookups. Recirc_id has to be
+     * zero when reaching this rule.
      *
-     * (priority=2), recirc=0, actions=resubmit(, 0)
+     * (priority=2), recirc_id=0, actions=drop
      */
-    resubmit = ofpact_put_RESUBMIT(&ofpacts);
-    resubmit->ofpact.compat = 0;
-    resubmit->in_port = OFPP_IN_PORT;
-    resubmit->table_id = 0;
-
+    ofpbuf_clear(&ofpacts);
     match_init_catchall(&match);
     match_set_recirc_id(&match, 0);
-
     error = ofproto_dpif_add_internal_flow(ofproto, &match, 2, 0, &ofpacts,
                                            &unused_rulep);
     if (error) {
         return error;
     }
 
-    /* Drop any run away recirc rule lookups. Recirc_id has to be
-     * non-zero when reaching this rule.
+    /* Continue rule lookups for not-matched recirc rules from table 0.
      *
-     * (priority=1), *, actions=drop
+     * (priority=1), actions=resubmit(, 0)
      */
-    ofpbuf_clear(&ofpacts);
+    resubmit = ofpact_put_RESUBMIT(&ofpacts);
+    resubmit->in_port = OFPP_IN_PORT;
+    resubmit->table_id = 0;
+
     match_init_catchall(&match);
     error = ofproto_dpif_add_internal_flow(ofproto, &match, 1, 0, &ofpacts,
                                            &unused_rulep);
@@ -1276,10 +1430,10 @@ static void
 destruct(struct ofproto *ofproto_)
 {
     struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
-    struct rule_dpif *rule, *next_rule;
     struct ofproto_packet_in *pin, *next_pin;
+    struct rule_dpif *rule;
     struct oftable *table;
-    struct list pins;
+    struct ovs_list pins;
 
     ofproto->backer->need_revalidate = REV_RECONFIGURE;
     xlate_txn_start();
@@ -1293,12 +1447,7 @@ destruct(struct ofproto *ofproto_)
     hmap_remove(&all_ofproto_dpifs, &ofproto->all_ofproto_dpifs_node);
 
     OFPROTO_FOR_EACH_TABLE (table, &ofproto->up) {
-        struct cls_cursor cursor;
-
-        fat_rwlock_rdlock(&table->cls.rwlock);
-        cls_cursor_init(&cursor, &table->cls, NULL);
-        fat_rwlock_unlock(&table->cls.rwlock);
-        CLS_CURSOR_FOR_EACH_SAFE (rule, next_rule, up.cr, &cursor) {
+        CLS_FOR_EACH (rule, up.cr, &table->cls) {
             ofproto_rule_delete(&ofproto->up, &rule->up);
         }
     }
@@ -1311,12 +1460,16 @@ destruct(struct ofproto *ofproto_)
     }
     guarded_list_destroy(&ofproto->pins);
 
+    dpif_backer_recirc_clear_ofproto(ofproto->backer, ofproto);
+
     mbridge_unref(ofproto->mbridge);
 
     netflow_unref(ofproto->netflow);
     dpif_sflow_unref(ofproto->sflow);
+    dpif_ipfix_unref(ofproto->ipfix);
     hmap_destroy(&ofproto->bundles);
     mac_learning_unref(ofproto->ml);
+    mcast_snooping_unref(ofproto->ms);
 
     hmap_destroy(&ofproto->vlandev_map);
     hmap_destroy(&ofproto->realdev_vid_map);
@@ -1344,6 +1497,7 @@ run(struct ofproto *ofproto_)
         ovs_rwlock_wrlock(&ofproto->ml->rwlock);
         mac_learning_flush(ofproto->ml);
         ovs_rwlock_unlock(&ofproto->ml->rwlock);
+        mcast_snooping_mdb_flush(ofproto->ms);
     }
 
     /* Always updates the ofproto->pins_seqno to avoid frequent wakeup during
@@ -1356,7 +1510,7 @@ run(struct ofproto *ofproto_)
      * waiting for flow restore to complete. */
     if (!ofproto_get_flow_restore_wait()) {
         struct ofproto_packet_in *pin, *next_pin;
-        struct list pins;
+        struct ovs_list pins;
 
         guarded_list_pop_all(&ofproto->pins, &pins);
         LIST_FOR_EACH_SAFE (pin, next_pin, list_node, &pins) {
@@ -1396,12 +1550,17 @@ run(struct ofproto *ofproto_)
     }
 
     stp_run(ofproto);
+    rstp_run(ofproto);
     ovs_rwlock_wrlock(&ofproto->ml->rwlock);
     if (mac_learning_run(ofproto->ml)) {
         ofproto->backer->need_revalidate = REV_MAC_LEARNING;
     }
     ovs_rwlock_unlock(&ofproto->ml->rwlock);
 
+    if (mcast_snooping_run(ofproto->ms)) {
+        ofproto->backer->need_revalidate = REV_MCAST_SNOOPING;
+    }
+
     new_dump_seq = seq_read(udpif_dump_seq(ofproto->backer->udpif));
     if (ofproto->dump_seq != new_dump_seq) {
         struct rule *rule, *next_rule;
@@ -1431,7 +1590,6 @@ run(struct ofproto *ofproto_)
             }
         }
     }
-
     return 0;
 }
 
@@ -1463,6 +1621,7 @@ wait(struct ofproto *ofproto_)
     ovs_rwlock_rdlock(&ofproto->ml->rwlock);
     mac_learning_wait(ofproto->ml);
     ovs_rwlock_unlock(&ofproto->ml->rwlock);
+    mcast_snooping_wait(ofproto->ms);
     stp_wait(ofproto);
     if (ofproto->backer->need_revalidate) {
         /* Shouldn't happen, but if it does just go around again. */
@@ -1497,38 +1656,24 @@ flush(struct ofproto *ofproto_)
 }
 
 static void
-get_features(struct ofproto *ofproto_ OVS_UNUSED,
-             bool *arp_match_ip, enum ofputil_action_bitmap *actions)
-{
-    *arp_match_ip = true;
-    *actions = (OFPUTIL_A_OUTPUT |
-                OFPUTIL_A_SET_VLAN_VID |
-                OFPUTIL_A_SET_VLAN_PCP |
-                OFPUTIL_A_STRIP_VLAN |
-                OFPUTIL_A_SET_DL_SRC |
-                OFPUTIL_A_SET_DL_DST |
-                OFPUTIL_A_SET_NW_SRC |
-                OFPUTIL_A_SET_NW_DST |
-                OFPUTIL_A_SET_NW_TOS |
-                OFPUTIL_A_SET_TP_SRC |
-                OFPUTIL_A_SET_TP_DST |
-                OFPUTIL_A_ENQUEUE);
-}
-
-static void
-get_tables(struct ofproto *ofproto, struct ofp12_table_stats *ots)
+query_tables(struct ofproto *ofproto,
+             struct ofputil_table_features *features,
+             struct ofputil_table_stats *stats)
 {
-    int i;
+    strcpy(features->name, "classifier");
+
+    if (stats) {
+        int i;
 
-    strcpy(ots->name, "classifier");
+        for (i = 0; i < ofproto->n_tables; i++) {
+            unsigned long missed, matched;
 
-    for (i = 0; i < ofproto->n_tables; i++) {
-        unsigned long missed, matched;
+            atomic_read_relaxed(&ofproto->tables[i].n_matched, &matched);
+            atomic_read_relaxed(&ofproto->tables[i].n_missed, &missed);
 
-        atomic_read(&ofproto->tables[i].n_matched, &matched);
-        ots[i].matched_count = htonll(matched);
-        atomic_read(&ofproto->tables[i].n_missed, &missed);
-        ots[i].lookup_count = htonll(matched + missed);
+            stats[i].matched_count = matched;
+            stats[i].lookup_count = matched + missed;
+        }
     }
 }
 
@@ -1560,9 +1705,11 @@ port_construct(struct ofport *port_)
     port->bundle = NULL;
     port->cfm = NULL;
     port->bfd = NULL;
-    port->may_enable = true;
+    port->may_enable = false;
     port->stp_port = NULL;
     port->stp_state = STP_DISABLED;
+    port->rstp_port = NULL;
+    port->rstp_state = RSTP_DISABLED;
     port->is_tunnel = false;
     port->peer = NULL;
     port->qdscp = NULL;
@@ -1594,8 +1741,13 @@ port_construct(struct ofport *port_)
     port->odp_port = dpif_port.port_no;
 
     if (netdev_get_tunnel_config(netdev)) {
-        tnl_port_add(port, port->up.netdev, port->odp_port);
+        atomic_count_inc(&ofproto->backer->tnl_count);
+        tnl_port_add(port, port->up.netdev, port->odp_port,
+                     ovs_native_tunneling_is_on(ofproto), namebuf);
         port->is_tunnel = true;
+        if (ofproto->ipfix) {
+           dpif_ipfix_add_tunnel_port(ofproto->ipfix, port_, port->odp_port);
+        }
     } else {
         /* Sanity-check that a mapping doesn't already exist.  This
          * shouldn't happen for non-tunnel ports. */
@@ -1657,6 +1809,14 @@ port_destruct(struct ofport *port_)
         ovs_rwlock_unlock(&ofproto->backer->odp_to_ofport_lock);
     }
 
+    if (port->is_tunnel) {
+        atomic_count_dec(&ofproto->backer->tnl_count);
+    }
+
+    if (port->is_tunnel && ofproto->ipfix) {
+       dpif_ipfix_del_tunnel_port(ofproto->ipfix, port->odp_port);
+    }
+
     tnl_port_del(port);
     sset_find_and_delete(&ofproto->ports, devname);
     sset_find_and_delete(&ofproto->ghost_ports, devname);
@@ -1666,6 +1826,7 @@ port_destruct(struct ofport *port_)
     if (port->stp_port) {
         stp_port_disable(port->stp_port);
     }
+    set_rstp_port(port_, NULL);
     if (ofproto->sflow) {
         dpif_sflow_del_port(ofproto->sflow, port->odp_port);
     }
@@ -1677,26 +1838,33 @@ static void
 port_modified(struct ofport *port_)
 {
     struct ofport_dpif *port = ofport_dpif_cast(port_);
+    char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
+    struct netdev *netdev = port->up.netdev;
 
     if (port->bundle && port->bundle->bond) {
-        bond_slave_set_netdev(port->bundle->bond, port, port->up.netdev);
+        bond_slave_set_netdev(port->bundle->bond, port, netdev);
     }
 
     if (port->cfm) {
-        cfm_set_netdev(port->cfm, port->up.netdev);
+        cfm_set_netdev(port->cfm, netdev);
     }
 
     if (port->bfd) {
-        bfd_set_netdev(port->bfd, port->up.netdev);
+        bfd_set_netdev(port->bfd, netdev);
     }
 
     ofproto_dpif_monitor_port_update(port, port->bfd, port->cfm,
                                      port->up.pp.hw_addr);
 
-    if (port->is_tunnel && tnl_port_reconfigure(port, port->up.netdev,
-                                                port->odp_port)) {
-        ofproto_dpif_cast(port->up.ofproto)->backer->need_revalidate =
-            REV_RECONFIGURE;
+    netdev_vport_get_dpif_port(netdev, namebuf, sizeof namebuf);
+
+    if (port->is_tunnel) {
+        struct ofproto_dpif *ofproto = ofproto_dpif_cast(port->up.ofproto);
+
+        if (tnl_port_reconfigure(port, netdev, port->odp_port,
+                                 ovs_native_tunneling_is_on(ofproto), namebuf)) {
+            ofproto->backer->need_revalidate = REV_RECONFIGURE;
+        }
     }
 
     ofport_update_peer(port);
@@ -1728,6 +1896,7 @@ set_sflow(struct ofproto *ofproto_,
     struct dpif_sflow *ds = ofproto->sflow;
 
     if (sflow_options) {
+        uint32_t old_probability = ds ? dpif_sflow_get_probability(ds) : 0;
         if (!ds) {
             struct ofport_dpif *ofport;
 
@@ -1735,9 +1904,11 @@ set_sflow(struct ofproto *ofproto_,
             HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
                 dpif_sflow_add_port(ds, &ofport->up, ofport->odp_port);
             }
-            ofproto->backer->need_revalidate = REV_RECONFIGURE;
         }
         dpif_sflow_set_options(ds, sflow_options);
+        if (dpif_sflow_get_probability(ds) != old_probability) {
+            ofproto->backer->need_revalidate = REV_RECONFIGURE;
+        }
     } else {
         if (ds) {
             dpif_sflow_unref(ds);
@@ -1758,9 +1929,11 @@ set_ipfix(
     struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
     struct dpif_ipfix *di = ofproto->ipfix;
     bool has_options = bridge_exporter_options || flow_exporters_options;
+    bool new_di = false;
 
     if (has_options && !di) {
         di = ofproto->ipfix = dpif_ipfix_create();
+        new_di = true;
     }
 
     if (di) {
@@ -1770,6 +1943,16 @@ set_ipfix(
             di, bridge_exporter_options, flow_exporters_options,
             n_flow_exporters_options);
 
+        /* Add tunnel ports only when a new ipfix created */
+        if (new_di == true) {
+            struct ofport_dpif *ofport;
+            HMAP_FOR_EACH (ofport, up.hmap_node, &ofproto->up.ports) {
+                if (ofport->is_tunnel == true) {
+                    dpif_ipfix_add_tunnel_port(di, &ofport->up, ofport->odp_port);
+                }
+            }
+        }
+
         if (!has_options) {
             dpif_ipfix_unref(di);
             ofproto->ipfix = NULL;
@@ -1809,23 +1992,23 @@ out:
     return error;
 }
 
+static bool
+cfm_status_changed(struct ofport *ofport_)
+{
+    struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
+
+    return ofport->cfm ? cfm_check_status_change(ofport->cfm) : true;
+}
+
 static int
 get_cfm_status(const struct ofport *ofport_,
-               struct ofproto_cfm_status *status)
+               struct cfm_status *status)
 {
     struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
     int ret = 0;
 
     if (ofport->cfm) {
-        if (cfm_check_status_change(ofport->cfm)) {
-            status->faults = cfm_get_fault(ofport->cfm);
-            status->flap_count = cfm_get_flap_count(ofport->cfm);
-            status->remote_opstate = cfm_get_opup(ofport->cfm);
-            status->health = cfm_get_health(ofport->cfm);
-            cfm_get_remote_mpids(ofport->cfm, &status->rmps, &status->n_rmps);
-        } else {
-            ret = NO_STATUS_CHANGE;
-        }
+        cfm_get_status(ofport->cfm, status);
     } else {
         ret = ENOENT;
     }
@@ -1851,6 +2034,14 @@ set_bfd(struct ofport *ofport_, const struct smap *cfg)
     return 0;
 }
 
+static bool
+bfd_status_changed(struct ofport *ofport_)
+{
+    struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
+
+    return ofport->bfd ? bfd_check_status_change(ofport->bfd) : true;
+}
+
 static int
 get_bfd_status(struct ofport *ofport_, struct smap *smap)
 {
@@ -1858,11 +2049,7 @@ get_bfd_status(struct ofport *ofport_, struct smap *smap)
     int ret = 0;
 
     if (ofport->bfd) {
-        if (bfd_check_status_change(ofport->bfd)) {
-            bfd_get_status(ofport->bfd, smap);
-        } else {
-            ret = NO_STATUS_CHANGE;
-        }
+        bfd_get_status(ofport->bfd, smap);
     } else {
         ret = ENOENT;
     }
@@ -1872,6 +2059,25 @@ get_bfd_status(struct ofport *ofport_, struct smap *smap)
 \f
 /* Spanning Tree. */
 
+/* Called while rstp_mutex is held. */
+static void
+rstp_send_bpdu_cb(struct ofpbuf *pkt, void *ofport_, void *ofproto_)
+{
+    struct ofproto_dpif *ofproto = ofproto_;
+    struct ofport_dpif *ofport = ofport_;
+    struct eth_header *eth = ofpbuf_l2(pkt);
+
+    netdev_get_etheraddr(ofport->up.netdev, eth->eth_src);
+    if (eth_addr_is_zero(eth->eth_src)) {
+        VLOG_WARN_RL(&rl, "%s port %d: cannot send RSTP BPDU on a port which "
+                     "does not have a configured source MAC address.",
+                     ofproto->up.name, ofp_to_u16(ofport->up.ofp_port));
+    } else {
+        ofproto_dpif_send_packet(ofport, pkt);
+    }
+    ofpbuf_delete(pkt);
+}
+
 static void
 send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_)
 {
@@ -1897,6 +2103,148 @@ send_bpdu_cb(struct ofpbuf *pkt, int port_num, void *ofproto_)
     ofpbuf_delete(pkt);
 }
 
+/* Configure RSTP on 'ofproto_' using the settings defined in 's'. */
+static void
+set_rstp(struct ofproto *ofproto_, const struct ofproto_rstp_settings *s)
+{
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+
+    /* Only revalidate flows if the configuration changed. */
+    if (!s != !ofproto->rstp) {
+        ofproto->backer->need_revalidate = REV_RECONFIGURE;
+    }
+
+    if (s) {
+        if (!ofproto->rstp) {
+            ofproto->rstp = rstp_create(ofproto_->name, s->address,
+                                        rstp_send_bpdu_cb, ofproto);
+            ofproto->rstp_last_tick = time_msec();
+        }
+        rstp_set_bridge_address(ofproto->rstp, s->address);
+        rstp_set_bridge_priority(ofproto->rstp, s->priority);
+        rstp_set_bridge_ageing_time(ofproto->rstp, s->ageing_time);
+        rstp_set_bridge_force_protocol_version(ofproto->rstp,
+                                               s->force_protocol_version);
+        rstp_set_bridge_max_age(ofproto->rstp, s->bridge_max_age);
+        rstp_set_bridge_forward_delay(ofproto->rstp, s->bridge_forward_delay);
+        rstp_set_bridge_transmit_hold_count(ofproto->rstp,
+                                            s->transmit_hold_count);
+    } else {
+        struct ofport *ofport;
+        HMAP_FOR_EACH (ofport, hmap_node, &ofproto->up.ports) {
+            set_rstp_port(ofport, NULL);
+        }
+        rstp_unref(ofproto->rstp);
+        ofproto->rstp = NULL;
+    }
+}
+
+static void
+get_rstp_status(struct ofproto *ofproto_, struct ofproto_rstp_status *s)
+{
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+
+    if (ofproto->rstp) {
+        s->enabled = true;
+        s->root_id = rstp_get_root_id(ofproto->rstp);
+        s->bridge_id = rstp_get_bridge_id(ofproto->rstp);
+        s->designated_id = rstp_get_designated_id(ofproto->rstp);
+        s->root_path_cost = rstp_get_root_path_cost(ofproto->rstp);
+        s->designated_port_id = rstp_get_designated_port_id(ofproto->rstp);
+        s->bridge_port_id = rstp_get_bridge_port_id(ofproto->rstp);
+    } else {
+        s->enabled = false;
+    }
+}
+
+static void
+update_rstp_port_state(struct ofport_dpif *ofport)
+{
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
+    enum rstp_state state;
+
+    /* Figure out new state. */
+    state = ofport->rstp_port ? rstp_port_get_state(ofport->rstp_port)
+        : RSTP_DISABLED;
+
+    /* Update state. */
+    if (ofport->rstp_state != state) {
+        enum ofputil_port_state of_state;
+        bool fwd_change;
+
+        VLOG_DBG("port %s: RSTP state changed from %s to %s",
+                 netdev_get_name(ofport->up.netdev),
+                 rstp_state_name(ofport->rstp_state),
+                 rstp_state_name(state));
+
+        if (rstp_learn_in_state(ofport->rstp_state)
+            != rstp_learn_in_state(state)) {
+            /* XXX: Learning action flows should also be flushed. */
+            if (ofport->bundle) {
+                if (!rstp_shift_root_learned_address(ofproto->rstp)
+                    || rstp_get_old_root_aux(ofproto->rstp) != ofport) {
+                    bundle_flush_macs(ofport->bundle, false);
+                }
+            }
+        }
+        fwd_change = rstp_forward_in_state(ofport->rstp_state)
+            != rstp_forward_in_state(state);
+
+        ofproto->backer->need_revalidate = REV_RSTP;
+        ofport->rstp_state = state;
+
+        if (fwd_change && ofport->bundle) {
+            bundle_update(ofport->bundle);
+        }
+
+        /* Update the RSTP state bits in the OpenFlow port description. */
+        of_state = ofport->up.pp.state & ~OFPUTIL_PS_STP_MASK;
+        of_state |= (state == RSTP_LEARNING ? OFPUTIL_PS_STP_LEARN
+                : state == RSTP_FORWARDING ? OFPUTIL_PS_STP_FORWARD
+                : state == RSTP_DISCARDING ?  OFPUTIL_PS_STP_LISTEN
+                : 0);
+        ofproto_port_set_state(&ofport->up, of_state);
+    }
+}
+
+static void
+rstp_run(struct ofproto_dpif *ofproto)
+{
+    if (ofproto->rstp) {
+        long long int now = time_msec();
+        long long int elapsed = now - ofproto->rstp_last_tick;
+        struct rstp_port *rp;
+        struct ofport_dpif *ofport;
+
+        /* Every second, decrease the values of the timers. */
+        if (elapsed >= 1000) {
+            rstp_tick_timers(ofproto->rstp);
+            ofproto->rstp_last_tick = now;
+        }
+        rp = NULL;
+        while ((ofport = rstp_get_next_changed_port_aux(ofproto->rstp, &rp))) {
+            update_rstp_port_state(ofport);
+        }
+        rp = NULL;
+        ofport = NULL;
+        /* FIXME: This check should be done on-event (i.e., when setting
+         * p->fdb_flush) and not periodically.
+         */
+        while ((ofport = rstp_check_and_reset_fdb_flush(ofproto->rstp, &rp))) {
+            if (!rstp_shift_root_learned_address(ofproto->rstp)
+                || rstp_get_old_root_aux(ofproto->rstp) != ofport) {
+                bundle_flush_macs(ofport->bundle, false);
+            }
+        }
+
+        if (rstp_shift_root_learned_address(ofproto->rstp)) {
+            bundle_move(((struct ofport_dpif *)rstp_get_old_root_aux(ofproto->rstp))->bundle,
+                        ((struct ofport_dpif *)rstp_get_new_root_aux(ofproto->rstp))->bundle);
+            rstp_reset_root_changed(ofproto->rstp);
+        }
+    }
+}
+
 /* Configures STP on 'ofproto_' using the settings defined in 's'. */
 static int
 set_stp(struct ofproto *ofproto_, const struct ofproto_stp_settings *s)
@@ -1966,16 +2314,17 @@ update_stp_port_state(struct ofport_dpif *ofport)
         enum ofputil_port_state of_state;
         bool fwd_change;
 
-        VLOG_DBG_RL(&rl, "port %s: STP state changed from %s to %s",
-                    netdev_get_name(ofport->up.netdev),
-                    stp_state_name(ofport->stp_state),
-                    stp_state_name(state));
+        VLOG_DBG("port %s: STP state changed from %s to %s",
+                 netdev_get_name(ofport->up.netdev),
+                 stp_state_name(ofport->stp_state),
+                 stp_state_name(state));
         if (stp_learn_in_state(ofport->stp_state)
                 != stp_learn_in_state(state)) {
             /* xxx Learning action flows should also be flushed. */
             ovs_rwlock_wrlock(&ofproto->ml->rwlock);
             mac_learning_flush(ofproto->ml);
             ovs_rwlock_unlock(&ofproto->ml->rwlock);
+            mcast_snooping_mdb_flush(ofproto->ms);
         }
         fwd_change = stp_forward_in_state(ofport->stp_state)
                         != stp_forward_in_state(state);
@@ -2018,13 +2367,17 @@ set_stp_port(struct ofport *ofport_,
         }
         return 0;
     } else if (sp && stp_port_no(sp) != s->port_num
-            && ofport == stp_port_get_aux(sp)) {
+               && ofport == stp_port_get_aux(sp)) {
         /* The port-id changed, so disable the old one if it's not
          * already in use by another port. */
         stp_port_disable(sp);
     }
 
     sp = ofport->stp_port = stp_get_port(ofproto->stp, s->port_num);
+
+    /* Set name before enabling the port so that debugging messages can print
+     * the name. */
+    stp_port_set_name(sp, netdev_get_name(ofport->up.netdev));
     stp_port_enable(sp);
 
     stp_port_set_aux(sp, ofport);
@@ -2101,6 +2454,7 @@ stp_run(struct ofproto_dpif *ofproto)
             ovs_rwlock_wrlock(&ofproto->ml->rwlock);
             mac_learning_flush(ofproto->ml);
             ovs_rwlock_unlock(&ofproto->ml->rwlock);
+            mcast_snooping_mdb_flush(ofproto->ms);
         }
     }
 }
@@ -2112,6 +2466,61 @@ stp_wait(struct ofproto_dpif *ofproto)
         poll_timer_wait(1000);
     }
 }
+
+/* Configures RSTP on 'ofport_' using the settings defined in 's'.  The
+ * caller is responsible for assigning RSTP port numbers and ensuring
+ * there are no duplicates. */
+static void
+set_rstp_port(struct ofport *ofport_,
+              const struct ofproto_port_rstp_settings *s)
+{
+    struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
+    struct rstp_port *rp = ofport->rstp_port;
+
+    if (!s || !s->enable) {
+        if (rp) {
+            rstp_port_unref(rp);
+            ofport->rstp_port = NULL;
+            update_rstp_port_state(ofport);
+        }
+        return;
+    }
+
+    /* Check if need to add a new port. */
+    if (!rp) {
+        rp = ofport->rstp_port = rstp_add_port(ofproto->rstp);
+    }
+
+    rstp_port_set(rp, s->port_num, s->priority, s->path_cost,
+                  s->admin_edge_port, s->auto_edge,
+                  s->admin_p2p_mac_state, s->admin_port_state, s->mcheck,
+                  ofport);
+    update_rstp_port_state(ofport);
+    /* Synchronize operational status. */
+    rstp_port_set_mac_operational(rp, ofport->may_enable);
+}
+
+static void
+get_rstp_port_status(struct ofport *ofport_,
+        struct ofproto_port_rstp_status *s)
+{
+    struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
+    struct rstp_port *rp = ofport->rstp_port;
+
+    if (!ofproto->rstp || !rp) {
+        s->enabled = false;
+        return;
+    }
+
+    s->enabled = true;
+    rstp_port_get_status(rp, &s->port_id, &s->state, &s->role,
+                         &s->designated_bridge_id, &s->designated_port_id,
+                         &s->designated_path_cost, &s->tx_count,
+                         &s->rx_count, &s->error_count, &s->uptime);
+}
+
 \f
 static int
 set_queues(struct ofport *ofport_, const struct ofproto_port_queue *qdscp,
@@ -2155,7 +2564,7 @@ bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos)
     ofproto->backer->need_revalidate = REV_RECONFIGURE;
     ovs_rwlock_wrlock(&ml->rwlock);
     LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
-        if (mac->port.p == bundle) {
+        if (mac_entry_get_port(ml, mac) == bundle) {
             if (all_ofprotos) {
                 struct ofproto_dpif *o;
 
@@ -2179,6 +2588,25 @@ bundle_flush_macs(struct ofbundle *bundle, bool all_ofprotos)
     ovs_rwlock_unlock(&ml->rwlock);
 }
 
+static void
+bundle_move(struct ofbundle *old, struct ofbundle *new)
+{
+    struct ofproto_dpif *ofproto = old->ofproto;
+    struct mac_learning *ml = ofproto->ml;
+    struct mac_entry *mac, *next_mac;
+
+    ovs_assert(new->ofproto == old->ofproto);
+
+    ofproto->backer->need_revalidate = REV_RECONFIGURE;
+    ovs_rwlock_wrlock(&ml->rwlock);
+    LIST_FOR_EACH_SAFE (mac, next_mac, lru_node, &ml->lrus) {
+        if (mac_entry_get_port(ml, mac) == old) {
+            mac_entry_set_port(ml, mac, new);
+        }
+    }
+    ovs_rwlock_unlock(&ml->rwlock);
+}
+
 static struct ofbundle *
 bundle_lookup(const struct ofproto_dpif *ofproto, void *aux)
 {
@@ -2202,7 +2630,8 @@ bundle_update(struct ofbundle *bundle)
     LIST_FOR_EACH (port, bundle_node, &bundle->ports) {
         if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
             || port->is_layer3
-            || !stp_forward_in_state(port->stp_state)) {
+            || (bundle->ofproto->stp && !stp_forward_in_state(port->stp_state))
+            || (bundle->ofproto->rstp && !rstp_forward_in_state(port->rstp_state))) {
             bundle->floodable = false;
             break;
         }
@@ -2250,7 +2679,8 @@ bundle_add_port(struct ofbundle *bundle, ofp_port_t ofp_port,
         list_push_back(&bundle->ports, &port->bundle_node);
         if (port->up.pp.config & OFPUTIL_PC_NO_FLOOD
             || port->is_layer3
-            || !stp_forward_in_state(port->stp_state)) {
+            || (bundle->ofproto->stp && !stp_forward_in_state(port->stp_state))
+            || (bundle->ofproto->rstp && !rstp_forward_in_state(port->rstp_state))) {
             bundle->floodable = false;
         }
     }
@@ -2273,7 +2703,7 @@ bundle_destroy(struct ofbundle *bundle)
     }
 
     ofproto = bundle->ofproto;
-    mbridge_unregister_bundle(ofproto->mbridge, bundle->aux);
+    mbridge_unregister_bundle(ofproto->mbridge, bundle);
 
     xlate_txn_start();
     xlate_bundle_remove(bundle);
@@ -2525,12 +2955,12 @@ bundle_send_learning_packets(struct ofbundle *bundle)
     struct ofpbuf *learning_packet;
     int error, n_packets, n_errors;
     struct mac_entry *e;
-    struct list packets;
+    struct ovs_list packets;
 
     list_init(&packets);
     ovs_rwlock_rdlock(&ofproto->ml->rwlock);
     LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
-        if (e->port.p != bundle) {
+        if (mac_entry_get_port(ofproto->ml, e) != bundle) {
             void *port_void;
 
             learning_packet = bond_compose_learning_packet(bundle->bond,
@@ -2685,6 +3115,58 @@ set_mac_table_config(struct ofproto *ofproto_, unsigned int idle_time,
     mac_learning_set_max_entries(ofproto->ml, max_entries);
     ovs_rwlock_unlock(&ofproto->ml->rwlock);
 }
+
+/* Configures multicast snooping on 'ofport' using the settings
+ * defined in 's'. */
+static int
+set_mcast_snooping(struct ofproto *ofproto_,
+                   const struct ofproto_mcast_snooping_settings *s)
+{
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+
+    /* Only revalidate flows if the configuration changed. */
+    if (!s != !ofproto->ms) {
+        ofproto->backer->need_revalidate = REV_RECONFIGURE;
+    }
+
+    if (s) {
+        if (!ofproto->ms) {
+            ofproto->ms = mcast_snooping_create();
+        }
+
+        ovs_rwlock_wrlock(&ofproto->ms->rwlock);
+        mcast_snooping_set_idle_time(ofproto->ms, s->idle_time);
+        mcast_snooping_set_max_entries(ofproto->ms, s->max_entries);
+        if (mcast_snooping_set_flood_unreg(ofproto->ms, s->flood_unreg)) {
+            ofproto->backer->need_revalidate = REV_RECONFIGURE;
+        }
+        ovs_rwlock_unlock(&ofproto->ms->rwlock);
+    } else {
+        mcast_snooping_unref(ofproto->ms);
+        ofproto->ms = NULL;
+    }
+
+    return 0;
+}
+
+/* Configures multicast snooping port's flood settings on 'ofproto'. */
+static int
+set_mcast_snooping_port(struct ofproto *ofproto_, void *aux,
+                        const struct ofproto_mcast_snooping_port_settings *s)
+{
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+    struct ofbundle *bundle = bundle_lookup(ofproto, aux);
+
+    if (ofproto->ms && s) {
+        ovs_rwlock_wrlock(&ofproto->ms->rwlock);
+        mcast_snooping_set_port_flood(ofproto->ms, bundle, s->flood);
+        mcast_snooping_set_port_flood_reports(ofproto->ms, bundle,
+                                              s->flood_reports);
+        ovs_rwlock_unlock(&ofproto->ms->rwlock);
+    }
+    return 0;
+}
+
 \f
 /* Ports. */
 
@@ -2795,7 +3277,12 @@ port_run(struct ofport_dpif *ofport)
 
     if (ofport->may_enable != enable) {
         struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofport->up.ofproto);
+
         ofproto->backer->need_revalidate = REV_PORT_TOGGLED;
+
+        if (ofport->rstp_port) {
+            rstp_port_set_mac_operational(ofport->rstp_port, enable);
+        }
     }
 
     ofport->may_enable = enable;
@@ -2943,6 +3430,18 @@ port_get_stats(const struct ofport *ofport_, struct netdev_stats *stats)
     return error;
 }
 
+static int
+port_get_lacp_stats(const struct ofport *ofport_, struct lacp_slave_stats *stats)
+{
+    struct ofport_dpif *ofport = ofport_dpif_cast(ofport_);
+    if (ofport->bundle && ofport->bundle->lacp) {
+        if (lacp_get_slave_stats(ofport->bundle->lacp, ofport, stats)) {
+            return 0;
+        }
+    }
+    return -1;
+}
+
 struct port_dump_state {
     uint32_t bucket;
     uint32_t offset;
@@ -3053,8 +3552,6 @@ rule_expire(struct rule_dpif *rule)
     long long int now = time_msec();
     int reason = -1;
 
-    ovs_assert(!rule->up.pending);
-
     hard_timeout = rule->up.hard_timeout;
     idle_timeout = rule->up.idle_timeout;
 
@@ -3113,17 +3610,20 @@ ofproto_dpif_execute_actions(struct ofproto_dpif *ofproto,
         rule_dpif_credit_stats(rule, &stats);
     }
 
-    xlate_in_init(&xin, ofproto, flow, rule, stats.tcp_flags, packet);
+    xlate_in_init(&xin, ofproto, flow, flow->in_port.ofp_port, rule,
+                  stats.tcp_flags, packet);
     xin.ofpacts = ofpacts;
     xin.ofpacts_len = ofpacts_len;
     xin.resubmit_stats = &stats;
     xlate_actions(&xin, &xout);
 
-    execute.actions = ofpbuf_data(&xout.odp_actions);
-    execute.actions_len = ofpbuf_size(&xout.odp_actions);
+    execute.actions = ofpbuf_data(xout.odp_actions);
+    execute.actions_len = ofpbuf_size(xout.odp_actions);
+
     execute.packet = packet;
     execute.md = pkt_metadata_from_flow(flow);
     execute.needs_help = (xout.slow & SLOW_ACTION) != 0;
+    execute.probe = false;
 
     /* Fix up in_port. */
     in_port = flow->in_port.ofp_port;
@@ -3164,9 +3664,8 @@ rule_dpif_reduce_timeouts(struct rule_dpif *rule, uint16_t idle_timeout,
     ofproto_rule_reduce_timeouts(&rule->up, idle_timeout, hard_timeout);
 }
 
-/* Returns 'rule''s actions.  The caller owns a reference on the returned
- * actions and must eventually release it (with rule_actions_unref()) to avoid
- * a memory leak. */
+/* Returns 'rule''s actions.  The returned actions are RCU-protected, and can
+ * be read until the calling thread quiesces. */
 const struct rule_actions *
 rule_dpif_get_actions(const struct rule_dpif *rule)
 {
@@ -3208,24 +3707,24 @@ rule_set_recirc_id(struct rule *rule_, uint32_t id)
 
 /* Lookup 'flow' in table 0 of 'ofproto''s classifier.
  * If 'wc' is non-null, sets the fields that were relevant as part of
- * the lookup. Returns the table_id where a match or miss occurred.
- *
- * The return value will be zero unless there was a miss and
+ * the lookup. Returns the table id where a match or miss occurred via
+ * 'table_id'.  This will be zero unless there was a miss and
  * OFPTC11_TABLE_MISS_CONTINUE is in effect for the sequence of tables
- * where misses occur.
+ * where misses occur, or TBL_INTERNAL if the rule has a non-zero
+ * recirculation ID, and a match was found in the internal table, or if
+ * there was no match and one of the special rules (drop_frags_rule,
+ * miss_rule, or no_packet_in_rule) was returned.
  *
- * The rule is returned in '*rule', which is valid at least until the next
- * RCU quiescent period.  If the '*rule' needs to stay around longer,
+ * The return value is the found rule, which is valid at least until the next
+ * RCU quiescent period.  If the rule needs to stay around longer,
  * a non-zero 'take_ref' must be passed in to cause a reference to be taken
  * on it before this returns. */
-uint8_t
+struct rule_dpif *
 rule_dpif_lookup(struct ofproto_dpif *ofproto, struct flow *flow,
-                 struct flow_wildcards *wc, struct rule_dpif **rule,
-                 bool take_ref, const struct dpif_flow_stats *stats)
+                 struct flow_wildcards *wc, bool take_ref,
+                 const struct dpif_flow_stats *stats, uint8_t *table_id)
 {
-    enum rule_dpif_lookup_verdict verdict;
-    enum ofputil_port_config config = 0;
-    uint8_t table_id;
+    *table_id = 0;
 
     if (ofproto_dpif_get_enable_recirc(ofproto)) {
         /* Always exactly match recirc_id since datapath supports
@@ -3233,104 +3732,44 @@ rule_dpif_lookup(struct ofproto_dpif *ofproto, struct flow *flow,
         if (wc) {
             wc->masks.recirc_id = UINT32_MAX;
         }
-
-        /* Start looking up from internal table for post recirculation flows
-         * or packets. We can also simply send all, including normal flows
-         * or packets to the internal table. They will not match any post
-         * recirculation rules except the 'catch all' rule that resubmit
-         * them to table 0.
-         *
-         * As an optimization, we send normal flows and packets to table 0
-         * directly, saving one table lookup.  */
-        table_id = flow->recirc_id ? TBL_INTERNAL : 0;
-    } else {
-        table_id = 0;
-    }
-
-    verdict = rule_dpif_lookup_from_table(ofproto, flow, wc, true,
-                                          &table_id, rule, take_ref, stats);
-
-    switch (verdict) {
-    case RULE_DPIF_LOOKUP_VERDICT_MATCH:
-        return table_id;
-    case RULE_DPIF_LOOKUP_VERDICT_CONTROLLER: {
-        struct ofport_dpif *port;
-
-        port = get_ofp_port(ofproto, flow->in_port.ofp_port);
-        if (!port) {
-            VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
-                         flow->in_port.ofp_port);
-        }
-        config = port ? port->up.pp.config : 0;
-        break;
-    }
-    case RULE_DPIF_LOOKUP_VERDICT_DROP:
-        config = OFPUTIL_PC_NO_PACKET_IN;
-        break;
-    case RULE_DPIF_LOOKUP_VERDICT_DEFAULT:
-        if (!connmgr_wants_packet_in_on_miss(ofproto->up.connmgr)) {
-            config = OFPUTIL_PC_NO_PACKET_IN;
-        }
-        break;
-    default:
-        OVS_NOT_REACHED();
+        *table_id = rule_dpif_lookup_get_init_table_id(flow);
     }
 
-    choose_miss_rule(config, ofproto->miss_rule,
-                     ofproto->no_packet_in_rule, rule, take_ref);
-    return table_id;
+    return rule_dpif_lookup_from_table(ofproto, flow, wc, take_ref, stats,
+                                       table_id, flow->in_port.ofp_port, true,
+                                       true);
 }
 
-/* The returned rule is valid at least until the next RCU quiescent period.
- * If the '*rule' needs to stay around longer, a non-zero 'take_ref' must be
- * passed in to cause a reference to be taken on it before this returns. */
+/* The returned rule (if any) is valid at least until the next RCU quiescent
+ * period.  If the rule needs to stay around longer, a non-zero 'take_ref'
+ * must be passed in to cause a reference to be taken on it.
+ *
+ * 'flow' is non-const to allow for temporary modifications during the lookup.
+ * Any changes are restored before returning. */
 static struct rule_dpif *
 rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto, uint8_t table_id,
-                          const struct flow *flow, struct flow_wildcards *wc,
+                          struct flow *flow, struct flow_wildcards *wc,
                           bool take_ref)
 {
     struct classifier *cls = &ofproto->up.tables[table_id].cls;
     const struct cls_rule *cls_rule;
     struct rule_dpif *rule;
 
-    fat_rwlock_rdlock(&cls->rwlock);
-    if (ofproto->up.frag_handling != OFPC_FRAG_NX_MATCH) {
-        if (wc) {
-            memset(&wc->masks.dl_type, 0xff, sizeof wc->masks.dl_type);
-            if (is_ip_any(flow)) {
-                wc->masks.nw_frag |= FLOW_NW_FRAG_MASK;
-            }
-        }
-
-        if (flow->nw_frag & FLOW_NW_FRAG_ANY) {
-            if (ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
-                /* We must pretend that transport ports are unavailable. */
-                struct flow ofpc_normal_flow = *flow;
-                ofpc_normal_flow.tp_src = htons(0);
-                ofpc_normal_flow.tp_dst = htons(0);
-                cls_rule = classifier_lookup(cls, &ofpc_normal_flow, wc);
-            } else {
-                /* Must be OFPC_FRAG_DROP (we don't have OFPC_FRAG_REASM). */
-                cls_rule = &ofproto->drop_frags_rule->up.cr;
-            }
-        } else {
-            cls_rule = classifier_lookup(cls, flow, wc);
-        }
-    } else {
+    do {
         cls_rule = classifier_lookup(cls, flow, wc);
-    }
 
-    rule = rule_dpif_cast(rule_from_cls_rule(cls_rule));
-    if (take_ref) {
-        rule_dpif_ref(rule);
-    }
-    fat_rwlock_unlock(&cls->rwlock);
+        rule = rule_dpif_cast(rule_from_cls_rule(cls_rule));
+
+        /* Try again if the rule was released before we get the reference. */
+    } while (rule && take_ref && !rule_dpif_try_ref(rule));
 
     return rule;
 }
 
 /* Look up 'flow' in 'ofproto''s classifier starting from table '*table_id'.
- * Stores the rule that was found in '*rule', or NULL if none was found.
+ * Returns the rule that was found, which may be one of the special rules
+ * according to packet miss hadling.  If 'may_packet_in' is false, returning of
+ * the miss_rule (which issues packet ins for the controller) is avoided.
  * Updates 'wc', if nonnull, to reflect the fields that were used during the
  * lookup.
  *
@@ -3343,91 +3782,120 @@ rule_dpif_lookup_in_table(struct ofproto_dpif *ofproto, uint8_t table_id,
  * If 'honor_table_miss' is false, then only one table lookup occurs, in
  * '*table_id'.
  *
- * Returns:
- *
- *    - RULE_DPIF_LOOKUP_VERDICT_MATCH if a rule (in '*rule') was found.
- *
- *    - RULE_OFPTC_TABLE_MISS_CONTROLLER if no rule was found and either:
- *      + 'honor_table_miss' is false
- *      + a table miss configuration specified that the packet should be
- *        sent to the controller in this case.
- *
- *    - RULE_DPIF_LOOKUP_VERDICT_DROP if no rule was found, 'honor_table_miss'
- *      is true and a table miss configuration specified that the packet
- *      should be dropped in this case.
- *
- *    - RULE_DPIF_LOOKUP_VERDICT_DEFAULT if no rule was found,
- *      'honor_table_miss' is true and a table miss configuration has
- *      not been specified in this case.
- *
  * The rule is returned in '*rule', which is valid at least until the next
  * RCU quiescent period.  If the '*rule' needs to stay around longer,
  * a non-zero 'take_ref' must be passed in to cause a reference to be taken
- * on it before this returns. */
-enum rule_dpif_lookup_verdict
-rule_dpif_lookup_from_table(struct ofproto_dpif *ofproto,
-                            const struct flow *flow,
-                            struct flow_wildcards *wc,
-                            bool honor_table_miss,
-                            uint8_t *table_id, struct rule_dpif **rule,
-                            bool take_ref, const struct dpif_flow_stats *stats)
-{
+ * on it before this returns.
+ *
+ * 'in_port' allows the lookup to take place as if the in port had the value
+ * 'in_port'.  This is needed for resubmit action support.
+ *
+ * 'flow' is non-const to allow for temporary modifications during the lookup.
+ * Any changes are restored before returning. */
+struct rule_dpif *
+rule_dpif_lookup_from_table(struct ofproto_dpif *ofproto, struct flow *flow,
+                            struct flow_wildcards *wc, bool take_ref,
+                            const struct dpif_flow_stats *stats,
+                            uint8_t *table_id, ofp_port_t in_port,
+                            bool may_packet_in, bool honor_table_miss)
+{
+    ovs_be16 old_tp_src = flow->tp_src, old_tp_dst = flow->tp_dst;
+    ofp_port_t old_in_port = flow->in_port.ofp_port;
+    enum ofputil_table_miss miss_config;
+    struct rule_dpif *rule;
     uint8_t next_id;
 
+    /* We always unwildcard nw_frag (for IP), so they
+     * need not be unwildcarded here. */
+    if (flow->nw_frag & FLOW_NW_FRAG_ANY
+        && ofproto->up.frag_handling != OFPC_FRAG_NX_MATCH) {
+        if (ofproto->up.frag_handling == OFPC_FRAG_NORMAL) {
+            /* We must pretend that transport ports are unavailable. */
+            flow->tp_src = htons(0);
+            flow->tp_dst = htons(0);
+        } else {
+            /* Must be OFPC_FRAG_DROP (we don't have OFPC_FRAG_REASM).
+             * Use the drop_frags_rule (which cannot disappear). */
+            rule = ofproto->drop_frags_rule;
+            if (take_ref) {
+                rule_dpif_ref(rule);
+            }
+            if (stats) {
+                struct oftable *tbl = &ofproto->up.tables[*table_id];
+                unsigned long orig;
+
+                atomic_add_relaxed(&tbl->n_matched, stats->n_packets, &orig);
+            }
+            return rule;
+        }
+    }
+
+    /* Look up a flow with 'in_port' as the input port.  Then restore the
+     * original input port (otherwise OFPP_NORMAL and OFPP_IN_PORT will
+     * have surprising behavior). */
+    flow->in_port.ofp_port = in_port;
+
+    /* Our current implementation depends on n_tables == N_TABLES, and
+     * TBL_INTERNAL being the last table. */
+    BUILD_ASSERT_DECL(N_TABLES == TBL_INTERNAL + 1);
+
+    miss_config = OFPUTIL_TABLE_MISS_CONTINUE;
+
     for (next_id = *table_id;
          next_id < ofproto->up.n_tables;
          next_id++, next_id += (next_id == TBL_INTERNAL))
     {
         *table_id = next_id;
-        *rule = rule_dpif_lookup_in_table(ofproto, *table_id, flow, wc,
-                                          take_ref);
+        rule = rule_dpif_lookup_in_table(ofproto, next_id, flow, wc, take_ref);
         if (stats) {
             struct oftable *tbl = &ofproto->up.tables[next_id];
-            atomic_ulong *stat = *rule ? &tbl->n_matched : &tbl->n_missed;
             unsigned long orig;
-            atomic_add(stat, stats->n_packets, &orig);
-        }
-        if (*rule) {
-            return RULE_DPIF_LOOKUP_VERDICT_MATCH;
-        } else if (!honor_table_miss) {
-            return RULE_DPIF_LOOKUP_VERDICT_CONTROLLER;
-        } else {
-            switch (ofproto_table_get_config(&ofproto->up, *table_id)) {
-            case OFPROTO_TABLE_MISS_CONTINUE:
-                break;
 
-            case OFPROTO_TABLE_MISS_CONTROLLER:
-                return RULE_DPIF_LOOKUP_VERDICT_CONTROLLER;
-
-            case OFPROTO_TABLE_MISS_DROP:
-                return RULE_DPIF_LOOKUP_VERDICT_DROP;
-
-            case OFPROTO_TABLE_MISS_DEFAULT:
-                return RULE_DPIF_LOOKUP_VERDICT_DEFAULT;
+            atomic_add_relaxed(rule ? &tbl->n_matched : &tbl->n_missed,
+                               stats->n_packets, &orig);
+        }
+        if (rule) {
+            goto out;   /* Match. */
+        }
+        if (honor_table_miss) {
+            miss_config = ofproto_table_get_miss_config(&ofproto->up,
+                                                        *table_id);
+            if (miss_config == OFPUTIL_TABLE_MISS_CONTINUE) {
+                continue;
             }
         }
+        break;
+    }
+    /* Miss. */
+    rule = ofproto->no_packet_in_rule;
+    if (may_packet_in) {
+        if (miss_config == OFPUTIL_TABLE_MISS_CONTINUE
+            || miss_config == OFPUTIL_TABLE_MISS_CONTROLLER) {
+            struct ofport_dpif *port;
+
+            port = get_ofp_port(ofproto, old_in_port);
+            if (!port) {
+                VLOG_WARN_RL(&rl, "packet-in on unknown OpenFlow port %"PRIu16,
+                             old_in_port);
+            } else if (!(port->up.pp.config & OFPUTIL_PC_NO_PACKET_IN)) {
+                rule = ofproto->miss_rule;
+            }
+        } else if (miss_config == OFPUTIL_TABLE_MISS_DEFAULT &&
+                   connmgr_wants_packet_in_on_miss(ofproto->up.connmgr)) {
+            rule = ofproto->miss_rule;
+        }
     }
-
-    return RULE_DPIF_LOOKUP_VERDICT_CONTROLLER;
-}
-
-/* Given a port configuration (specified as zero if there's no port), chooses
- * which of 'miss_rule' and 'no_packet_in_rule' should be used in case of a
- * flow table miss.
- *
- * The rule is returned in '*rule', which is valid at least until the next
- * RCU quiescent period.  If the '*rule' needs to stay around longer,
- * a reference must be taken on it (rule_dpif_ref()).
- */
-void
-choose_miss_rule(enum ofputil_port_config config, struct rule_dpif *miss_rule,
-                 struct rule_dpif *no_packet_in_rule, struct rule_dpif **rule,
-                 bool take_ref)
-{
-    *rule = config & OFPUTIL_PC_NO_PACKET_IN ? no_packet_in_rule : miss_rule;
     if (take_ref) {
-        rule_dpif_ref(*rule);
+        rule_dpif_ref(rule);
     }
+out:
+    /* Restore port numbers, as they may have been modified above. */
+    flow->tp_src = old_tp_src;
+    flow->tp_dst = old_tp_dst;
+    /* Restore the old in port. */
+    flow->in_port.ofp_port = old_in_port;
+
+    return rule;
 }
 
 static void
@@ -3437,7 +3905,6 @@ complete_operation(struct rule_dpif *rule)
     struct ofproto_dpif *ofproto = ofproto_dpif_cast(rule->up.ofproto);
 
     ofproto->backer->need_revalidate = REV_FLOW_TABLE;
-    ofoperation_complete(rule->up.pending, 0);
 }
 
 static struct rule_dpif *rule_dpif_cast(const struct rule *rule)
@@ -3473,12 +3940,13 @@ rule_construct(struct rule *rule_)
     return 0;
 }
 
-static void
+static enum ofperr
 rule_insert(struct rule *rule_)
     OVS_REQUIRES(ofproto_mutex)
 {
     struct rule_dpif *rule = rule_dpif_cast(rule_);
     complete_operation(rule);
+    return 0;
 }
 
 static void
@@ -3573,7 +4041,7 @@ group_construct_stats(struct group_dpif *group)
     OVS_REQUIRES(group->stats_mutex)
 {
     struct ofputil_bucket *bucket;
-    const struct list *buckets;
+    const struct ovs_list *buckets;
 
     group->packet_count = 0;
     group->byte_count = 0;
@@ -3597,7 +4065,7 @@ group_dpif_credit_stats(struct group_dpif *group,
         bucket->stats.packet_count += stats->n_packets;
         bucket->stats.byte_count += stats->n_bytes;
     } else { /* Credit to all buckets */
-        const struct list *buckets;
+        const struct ovs_list *buckets;
 
         group_dpif_get_buckets(group, &buckets);
         LIST_FOR_EACH (bucket, list_node, buckets) {
@@ -3655,7 +4123,7 @@ group_get_stats(const struct ofgroup *group_, struct ofputil_group_stats *ogs)
 {
     struct group_dpif *group = group_dpif_cast(group_);
     struct ofputil_bucket *bucket;
-    const struct list *buckets;
+    const struct ovs_list *buckets;
     struct bucket_counter *bucket_stats;
 
     ovs_mutex_lock(&group->stats_mutex);
@@ -3693,7 +4161,7 @@ group_dpif_lookup(struct ofproto_dpif *ofproto, uint32_t group_id,
 
 void
 group_dpif_get_buckets(const struct group_dpif *group,
-                       const struct list **buckets)
+                       const struct ovs_list **buckets)
 {
     *buckets = &group->up.buckets;
 }
@@ -3722,6 +4190,17 @@ ofproto_dpif_send_packet(const struct ofport_dpif *ofport, struct ofpbuf *packet
     return error;
 }
 \f
+/* Return the version string of the datapath that backs up
+ * this 'ofproto'.
+ */
+static const char *
+get_datapath_version(const struct ofproto *ofproto_)
+{
+    struct ofproto_dpif *ofproto = ofproto_dpif_cast(ofproto_);
+
+    return ofproto->backer->dp_version_string;
+}
+
 static bool
 set_frag_handling(struct ofproto *ofproto_,
                   enum ofp_config_flags frag_handling)
@@ -3819,6 +4298,36 @@ ofproto_unixctl_fdb_flush(struct unixctl_conn *conn, int argc,
     unixctl_command_reply(conn, "table successfully flushed");
 }
 
+static void
+ofproto_unixctl_mcast_snooping_flush(struct unixctl_conn *conn, int argc,
+                                     const char *argv[], void *aux OVS_UNUSED)
+{
+    struct ofproto_dpif *ofproto;
+
+    if (argc > 1) {
+        ofproto = ofproto_dpif_lookup(argv[1]);
+        if (!ofproto) {
+            unixctl_command_reply_error(conn, "no such bridge");
+            return;
+        }
+
+        if (!mcast_snooping_enabled(ofproto->ms)) {
+            unixctl_command_reply_error(conn, "multicast snooping is disabled");
+            return;
+        }
+        mcast_snooping_mdb_flush(ofproto->ms);
+    } else {
+        HMAP_FOR_EACH (ofproto, all_ofproto_dpifs_node, &all_ofproto_dpifs) {
+            if (!mcast_snooping_enabled(ofproto->ms)) {
+                continue;
+            }
+            mcast_snooping_mdb_flush(ofproto->ms);
+        }
+    }
+
+    unixctl_command_reply(conn, "table successfully flushed");
+}
+
 static struct ofport_dpif *
 ofbundle_get_a_port(const struct ofbundle *bundle)
 {
@@ -3843,7 +4352,7 @@ ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
     ds_put_cstr(&ds, " port  VLAN  MAC                Age\n");
     ovs_rwlock_rdlock(&ofproto->ml->rwlock);
     LIST_FOR_EACH (e, lru_node, &ofproto->ml->lrus) {
-        struct ofbundle *bundle = e->port.p;
+        struct ofbundle *bundle = mac_entry_get_port(ofproto->ml, e);
         char name[OFP_MAX_PORT_NAME_LEN];
 
         ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
@@ -3857,6 +4366,61 @@ ofproto_unixctl_fdb_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
     ds_destroy(&ds);
 }
 
+static void
+ofproto_unixctl_mcast_snooping_show(struct unixctl_conn *conn,
+                                    int argc OVS_UNUSED,
+                                    const char *argv[],
+                                    void *aux OVS_UNUSED)
+{
+    struct ds ds = DS_EMPTY_INITIALIZER;
+    const struct ofproto_dpif *ofproto;
+    const struct ofbundle *bundle;
+    const struct mcast_group *grp;
+    struct mcast_group_bundle *b;
+    struct mcast_mrouter_bundle *mrouter;
+
+    ofproto = ofproto_dpif_lookup(argv[1]);
+    if (!ofproto) {
+        unixctl_command_reply_error(conn, "no such bridge");
+        return;
+    }
+
+    if (!mcast_snooping_enabled(ofproto->ms)) {
+        unixctl_command_reply_error(conn, "multicast snooping is disabled");
+        return;
+    }
+
+    ds_put_cstr(&ds, " port  VLAN  GROUP                Age\n");
+    ovs_rwlock_rdlock(&ofproto->ms->rwlock);
+    LIST_FOR_EACH (grp, group_node, &ofproto->ms->group_lru) {
+        LIST_FOR_EACH(b, bundle_node, &grp->bundle_lru) {
+            char name[OFP_MAX_PORT_NAME_LEN];
+
+            bundle = b->port;
+            ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
+                                   name, sizeof name);
+            ds_put_format(&ds, "%5s  %4d  "IP_FMT"         %3d\n",
+                          name, grp->vlan, IP_ARGS(grp->ip4),
+                          mcast_bundle_age(ofproto->ms, b));
+        }
+    }
+
+    /* ports connected to multicast routers */
+    LIST_FOR_EACH(mrouter, mrouter_node, &ofproto->ms->mrouter_lru) {
+        char name[OFP_MAX_PORT_NAME_LEN];
+
+        bundle = mrouter->port;
+        ofputil_port_to_string(ofbundle_get_a_port(bundle)->up.ofp_port,
+                               name, sizeof name);
+            ds_put_format(&ds, "%5s  %4d  querier             %3d\n",
+                      name, mrouter->vlan,
+                      mcast_mrouter_age(ofproto->ms, mrouter));
+    }
+    ovs_rwlock_unlock(&ofproto->ms->rwlock);
+    unixctl_command_reply(conn, ds_cstr(&ds));
+    ds_destroy(&ds);
+}
+
 struct trace_ctx {
     struct xlate_out xout;
     struct xlate_in xin;
@@ -3930,7 +4494,7 @@ static void
 trace_format_odp(struct ds *result, int level, const char *title,
                  struct trace_ctx *trace)
 {
-    struct ofpbuf *odp_actions = &trace->xout.odp_actions;
+    struct ofpbuf *odp_actions = trace->xout.odp_actions;
 
     ds_put_char_multiple(result, '\t', level);
     ds_put_format(result, "%s: ", title);
@@ -3953,18 +4517,36 @@ trace_format_megaflow(struct ds *result, int level, const char *title,
     ds_put_char(result, '\n');
 }
 
+static void trace_report(struct xlate_in *xin, const char *s, int recurse);
+
 static void
 trace_resubmit(struct xlate_in *xin, struct rule_dpif *rule, int recurse)
 {
     struct trace_ctx *trace = CONTAINER_OF(xin, struct trace_ctx, xin);
     struct ds *result = trace->result;
 
+    if (!recurse) {
+        if (rule == xin->ofproto->miss_rule) {
+            trace_report(xin, "No match, flow generates \"packet in\"s.",
+                         recurse);
+        } else if (rule == xin->ofproto->no_packet_in_rule) {
+            trace_report(xin, "No match, packets dropped because "
+                         "OFPPC_NO_PACKET_IN is set on in_port.", recurse);
+        } else if (rule == xin->ofproto->drop_frags_rule) {
+            trace_report(xin, "Packets dropped because they are IP "
+                         "fragments and the fragment handling mode is "
+                         "\"drop\".", recurse);
+        }
+    }
+
     ds_put_char(result, '\n');
-    trace_format_flow(result, recurse + 1, "Resubmitted flow", trace);
-    trace_format_regs(result, recurse + 1, "Resubmitted regs", trace);
-    trace_format_odp(result,  recurse + 1, "Resubmitted  odp", trace);
-    trace_format_megaflow(result, recurse + 1, "Resubmitted megaflow", trace);
-    trace_format_rule(result, recurse + 1, rule);
+    if (recurse) {
+        trace_format_flow(result, recurse, "Resubmitted flow", trace);
+        trace_format_regs(result, recurse, "Resubmitted regs", trace);
+        trace_format_odp(result,  recurse, "Resubmitted  odp", trace);
+        trace_format_megaflow(result, recurse, "Resubmitted megaflow", trace);
+    }
+    trace_format_rule(result, recurse, rule);
 }
 
 static void
@@ -3986,7 +4568,7 @@ trace_report(struct xlate_in *xin, const char *s, int recurse)
  *
  * On success, initializes '*ofprotop' and 'flow' and returns NULL.  On failure
  * returns a nonnull malloced error message. */
-static char * WARN_UNUSED_RESULT
+static char * OVS_WARN_UNUSED_RESULT
 parse_flow_and_packet(int argc, const char *argv[],
                       struct ofproto_dpif **ofprotop, struct flow *flow,
                       struct ofpbuf **packetp)
@@ -4059,12 +4641,21 @@ parse_flow_and_packet(int argc, const char *argv[],
             goto exit;
         }
 
-        if (xlate_receive(backer, NULL, ofpbuf_data(&odp_key),
-                          ofpbuf_size(&odp_key), flow,
-                          ofprotop, NULL, NULL, NULL, NULL)) {
+        if (odp_flow_key_to_flow(ofpbuf_data(&odp_key), ofpbuf_size(&odp_key),
+                                 flow) == ODP_FIT_ERROR) {
+            error = "Failed to parse flow key";
+            goto exit;
+        }
+
+        *ofprotop = xlate_lookup_ofproto(backer, flow,
+                                         &flow->in_port.ofp_port);
+        if (*ofprotop == NULL) {
             error = "Invalid datapath flow";
             goto exit;
         }
+
+        vsp_adjust_flow(*ofprotop, flow, NULL);
+
     } else {
         char *err = parse_ofp_exact_flow(flow, NULL, argv[argc - 1], NULL);
 
@@ -4160,7 +4751,7 @@ ofproto_unixctl_trace_actions(struct unixctl_conn *conn, int argc,
     ofpbuf_init(&ofpacts, 0);
 
     /* Parse actions. */
-    error = parse_ofpacts(argv[--argc], &ofpacts, &usable_protocols);
+    error = ofpacts_parse_actions(argv[--argc], &ofpacts, &usable_protocols);
     if (error) {
         unixctl_command_reply_error(conn, error);
         free(error);
@@ -4187,7 +4778,7 @@ ofproto_unixctl_trace_actions(struct unixctl_conn *conn, int argc,
 
     /* Do the same checks as handle_packet_out() in ofproto.c.
      *
-     * We pass a 'table_id' of 0 to ofproto_check_ofpacts(), which isn't
+     * We pass a 'table_id' of 0 to ofpacts_check(), which isn't
      * strictly correct because these actions aren't in any table, but it's OK
      * because it 'table_id' is used only to check goto_table instructions, but
      * packet-outs take a list of actions and therefore it can't include
@@ -4242,7 +4833,6 @@ ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
               const struct ofpact ofpacts[], size_t ofpacts_len,
               struct ds *ds)
 {
-    struct rule_dpif *rule;
     struct trace_ctx trace;
 
     ds_put_format(ds, "Bridge: %s\n", ofproto->up.name);
@@ -4251,65 +4841,45 @@ ofproto_trace(struct ofproto_dpif *ofproto, struct flow *flow,
     ds_put_char(ds, '\n');
 
     flow_wildcards_init_catchall(&trace.wc);
-    if (ofpacts) {
-        rule = NULL;
-    } else {
-        rule_dpif_lookup(ofproto, flow, &trace.wc, &rule, false, NULL);
-
-        trace_format_rule(ds, 0, rule);
-        if (rule == ofproto->miss_rule) {
-            ds_put_cstr(ds, "\nNo match, flow generates \"packet in\"s.\n");
-        } else if (rule == ofproto->no_packet_in_rule) {
-            ds_put_cstr(ds, "\nNo match, packets dropped because "
-                        "OFPPC_NO_PACKET_IN is set on in_port.\n");
-        } else if (rule == ofproto->drop_frags_rule) {
-            ds_put_cstr(ds, "\nPackets dropped because they are IP fragments "
-                        "and the fragment handling mode is \"drop\".\n");
-        }
-    }
 
-    if (rule || ofpacts) {
-        trace.result = ds;
-        trace.key = flow; /* Original flow key, used for megaflow. */
-        trace.flow = *flow; /* May be modified by actions. */
-        xlate_in_init(&trace.xin, ofproto, flow, rule, ntohs(flow->tcp_flags),
-                      packet);
-        if (ofpacts) {
-            trace.xin.ofpacts = ofpacts;
-            trace.xin.ofpacts_len = ofpacts_len;
-        }
-        trace.xin.resubmit_hook = trace_resubmit;
-        trace.xin.report_hook = trace_report;
+    trace.result = ds;
+    trace.key = flow; /* Original flow key, used for megaflow. */
+    trace.flow = *flow; /* May be modified by actions. */
+    xlate_in_init(&trace.xin, ofproto, flow, flow->in_port.ofp_port, NULL,
+                  ntohs(flow->tcp_flags), packet);
+    trace.xin.ofpacts = ofpacts;
+    trace.xin.ofpacts_len = ofpacts_len;
+    trace.xin.resubmit_hook = trace_resubmit;
+    trace.xin.report_hook = trace_report;
 
-        xlate_actions(&trace.xin, &trace.xout);
+    xlate_actions(&trace.xin, &trace.xout);
 
-        ds_put_char(ds, '\n');
-        trace_format_flow(ds, 0, "Final flow", &trace);
-        trace_format_megaflow(ds, 0, "Megaflow", &trace);
+    ds_put_char(ds, '\n');
+    trace_format_flow(ds, 0, "Final flow", &trace);
+    trace_format_megaflow(ds, 0, "Megaflow", &trace);
 
-        ds_put_cstr(ds, "Datapath actions: ");
-        format_odp_actions(ds, ofpbuf_data(&trace.xout.odp_actions),
-                           ofpbuf_size(&trace.xout.odp_actions));
+    ds_put_cstr(ds, "Datapath actions: ");
+    format_odp_actions(ds, ofpbuf_data(trace.xout.odp_actions),
+                       ofpbuf_size(trace.xout.odp_actions));
 
-        if (trace.xout.slow) {
-            enum slow_path_reason slow;
+    if (trace.xout.slow) {
+        enum slow_path_reason slow;
 
-            ds_put_cstr(ds, "\nThis flow is handled by the userspace "
-                        "slow path because it:");
+        ds_put_cstr(ds, "\nThis flow is handled by the userspace "
+                    "slow path because it:");
 
-            slow = trace.xout.slow;
-            while (slow) {
-                enum slow_path_reason bit = rightmost_1bit(slow);
+        slow = trace.xout.slow;
+        while (slow) {
+            enum slow_path_reason bit = rightmost_1bit(slow);
 
-                ds_put_format(ds, "\n\t- %s.",
-                              slow_path_reason_to_explanation(bit));
+            ds_put_format(ds, "\n\t- %s.",
+                          slow_path_reason_to_explanation(bit));
 
-                slow &= ~bit;
-            }
+            slow &= ~bit;
         }
-
-        xlate_out_uninit(&trace.xout);
     }
+
+    xlate_out_uninit(&trace.xout);
 }
 
 /* Store the current ofprotos in 'ofproto_shash'.  Returns a sorted list
@@ -4439,18 +5009,6 @@ ofproto_unixctl_dpif_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
     ds_destroy(&ds);
 }
 
-static bool
-ofproto_dpif_contains_flow(const struct ofproto_dpif *ofproto,
-                           const struct nlattr *key, size_t key_len)
-{
-    struct ofproto_dpif *ofp;
-    struct flow flow;
-
-    xlate_receive(ofproto->backer, NULL, key, key_len, &flow, &ofp,
-                  NULL, NULL, NULL, NULL);
-    return ofp == ofproto;
-}
-
 static void
 ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn,
                                 int argc OVS_UNUSED, const char *argv[],
@@ -4486,13 +5044,20 @@ ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn,
     }
 
     ds_init(&ds);
-    flow_dump = dpif_flow_dump_create(ofproto->backer->dpif);
+    flow_dump = dpif_flow_dump_create(ofproto->backer->dpif, false);
     flow_dump_thread = dpif_flow_dump_thread_create(flow_dump);
     while (dpif_flow_dump_next(flow_dump_thread, &f, 1)) {
-        if (!ofproto_dpif_contains_flow(ofproto, f.key, f.key_len)) {
+        struct flow flow;
+
+        if (odp_flow_key_to_flow(f.key, f.key_len, &flow) == ODP_FIT_ERROR
+            || xlate_lookup_ofproto(ofproto->backer, &flow, NULL) != ofproto) {
             continue;
         }
 
+        if (verbosity) {
+            odp_format_ufid(&f.ufid, &ds);
+            ds_put_cstr(&ds, " ");
+        }
         odp_flow_format(f.key, f.key_len, f.mask, f.mask_len,
                         &portno_names, &ds, verbosity);
         ds_put_cstr(&ds, ", ");
@@ -4517,7 +5082,36 @@ ofproto_unixctl_dpif_dump_flows(struct unixctl_conn *conn,
 }
 
 static void
-ofproto_dpif_unixctl_init(void)
+ofproto_revalidate_all_backers(void)
+{
+    const struct shash_node **backers;
+    int i;
+
+    backers = shash_sort(&all_dpif_backers);
+    for (i = 0; i < shash_count(&all_dpif_backers); i++) {
+        struct dpif_backer *backer = backers[i]->data;
+        backer->need_revalidate = REV_RECONFIGURE;
+    }
+    free(backers);
+}
+
+static void
+disable_tnl_push_pop(struct unixctl_conn *conn OVS_UNUSED, int argc OVS_UNUSED,
+                     const char *argv[], void *aux OVS_UNUSED)
+{
+    if (!strcasecmp(argv[1], "off")) {
+        ofproto_use_tnl_push_pop = false;
+        unixctl_command_reply(conn, "Tunnel push-pop off");
+        ofproto_revalidate_all_backers();
+    } else if (!strcasecmp(argv[1], "on")) {
+        ofproto_use_tnl_push_pop = true;
+        unixctl_command_reply(conn, "Tunnel push-pop on");
+        ofproto_revalidate_all_backers();
+    }
+}
+
+static void
+ofproto_unixctl_init(void)
 {
     static bool registered;
     if (registered) {
@@ -4537,12 +5131,19 @@ ofproto_dpif_unixctl_init(void)
                              ofproto_unixctl_fdb_flush, NULL);
     unixctl_command_register("fdb/show", "bridge", 1, 1,
                              ofproto_unixctl_fdb_show, NULL);
+    unixctl_command_register("mdb/flush", "[bridge]", 0, 1,
+                             ofproto_unixctl_mcast_snooping_flush, NULL);
+    unixctl_command_register("mdb/show", "bridge", 1, 1,
+                             ofproto_unixctl_mcast_snooping_show, NULL);
     unixctl_command_register("dpif/dump-dps", "", 0, 0,
                              ofproto_unixctl_dpif_dump_dps, NULL);
     unixctl_command_register("dpif/show", "", 0, 0, ofproto_unixctl_dpif_show,
                              NULL);
     unixctl_command_register("dpif/dump-flows", "[-m] bridge", 1, 2,
                              ofproto_unixctl_dpif_dump_flows, NULL);
+
+    unixctl_command_register("ofproto/tnl-push-pop", "[on]|[off]", 1, 1,
+                             disable_tnl_push_pop, NULL);
 }
 
 /* Returns true if 'table' is the table used for internal rules,
@@ -4699,11 +5300,13 @@ vsp_vlandev_to_realdev(const struct ofproto_dpif *ofproto,
 /* Given 'flow', a flow representing a packet received on 'ofproto', checks
  * whether 'flow->in_port' represents a Linux VLAN device.  If so, changes
  * 'flow->in_port' to the "real" device backing the VLAN device, sets
- * 'flow->vlan_tci' to the VLAN VID, and returns true.  Otherwise (which is
- * always the case unless VLAN splinters are enabled), returns false without
- * making any changes. */
+ * 'flow->vlan_tci' to the VLAN VID, and returns true.  Optionally pushes the
+ * appropriate VLAN on 'packet' if provided.  Otherwise (which is always the
+ * case unless VLAN splinters are enabled), returns false without making any
+ * changes. */
 bool
-vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow)
+vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow,
+                struct ofpbuf *packet)
     OVS_EXCLUDED(ofproto->vsp_mutex)
 {
     ofp_port_t realdev;
@@ -4725,6 +5328,15 @@ vsp_adjust_flow(const struct ofproto_dpif *ofproto, struct flow *flow)
      * the VLAN device's VLAN ID. */
     flow->in_port.ofp_port = realdev;
     flow->vlan_tci = htons((vid & VLAN_VID_MASK) | VLAN_CFI);
+
+    if (packet) {
+        /* Make the packet resemble the flow, so that it gets sent to an
+         * OpenFlow controller properly, so that it looks correct for sFlow,
+         * and so that flow_extract() will get the correct vlan_tci if it is
+         * called on 'packet'. */
+        eth_push_vlan(packet, htons(ETH_TYPE_VLAN), flow->vlan_tci);
+    }
+
     return true;
 }
 
@@ -4814,20 +5426,59 @@ odp_port_to_ofp_port(const struct ofproto_dpif *ofproto, odp_port_t odp_port)
     }
 }
 
+struct ofproto_dpif *
+ofproto_dpif_recirc_get_ofproto(const struct dpif_backer *backer,
+                                uint32_t recirc_id)
+{
+    struct dpif_backer_recirc_node *node;
+
+    node = CONTAINER_OF(cmap_find(&backer->recirc_map, recirc_id),
+                        struct dpif_backer_recirc_node, cmap_node);
+
+    return node ? node->ofproto : NULL;
+}
+
 uint32_t
 ofproto_dpif_alloc_recirc_id(struct ofproto_dpif *ofproto)
 {
     struct dpif_backer *backer = ofproto->backer;
+    uint32_t recirc_id = recirc_id_alloc(backer->rid_pool);
+
+    if (recirc_id) {
+        struct dpif_backer_recirc_node *node = xmalloc(sizeof *node);
+
+        node->recirc_id = recirc_id;
+        node->ofproto = ofproto;
+
+        ovs_mutex_lock(&backer->recirc_mutex);
+        cmap_insert(&backer->recirc_map, &node->cmap_node, node->recirc_id);
+        ovs_mutex_unlock(&backer->recirc_mutex);
+    }
 
-    return  recirc_id_alloc(backer->rid_pool);
+    return recirc_id;
 }
 
 void
 ofproto_dpif_free_recirc_id(struct ofproto_dpif *ofproto, uint32_t recirc_id)
 {
     struct dpif_backer *backer = ofproto->backer;
+    struct dpif_backer_recirc_node *node;
+
+    node = CONTAINER_OF(cmap_find(&backer->recirc_map, recirc_id),
+                        struct dpif_backer_recirc_node, cmap_node);
+    if (node) {
+        ovs_mutex_lock(&backer->recirc_mutex);
+        cmap_remove(&backer->recirc_map, &node->cmap_node, node->recirc_id);
+        ovs_mutex_unlock(&backer->recirc_mutex);
+        recirc_id_free(backer->rid_pool, node->recirc_id);
 
-    recirc_id_free(backer->rid_pool, recirc_id);
+        /* 'recirc_id' should never be freed by non-owning 'ofproto'. */
+        ovs_assert(node->ofproto == ofproto);
+
+        /* RCU postpone the free, since other threads may be referring
+         * to 'node' at same time. */
+        ovsrcu_postpone(free, node);
+    }
 }
 
 int
@@ -4851,6 +5502,7 @@ ofproto_dpif_add_internal_flow(struct ofproto_dpif *ofproto,
     fm.command = OFPFC_ADD;
     fm.idle_timeout = idle_timeout;
     fm.hard_timeout = 0;
+    fm.importance = 0;
     fm.buffer_id = 0;
     fm.out_port = 0;
     fm.flags = OFPUTIL_FF_HIDDEN_FIELDS | OFPUTIL_FF_NO_READONLY;
@@ -4919,8 +5571,7 @@ const struct ofproto_class ofproto_dpif_class = {
     NULL,                       /* get_memory_usage. */
     type_get_memory_usage,
     flush,
-    get_features,
-    get_tables,
+    query_tables,
     port_alloc,
     port_construct,
     port_destruct,
@@ -4937,6 +5588,7 @@ const struct ofproto_class ofproto_dpif_class = {
     port_poll,
     port_poll_wait,
     port_is_lacp_current,
+    port_get_lacp_stats,
     NULL,                       /* rule_choose_table */
     rule_alloc,
     rule_construct,
@@ -4955,14 +5607,20 @@ const struct ofproto_class ofproto_dpif_class = {
     set_sflow,
     set_ipfix,
     set_cfm,
+    cfm_status_changed,
     get_cfm_status,
     set_bfd,
+    bfd_status_changed,
     get_bfd_status,
     set_stp,
     get_stp_status,
     set_stp_port,
     get_stp_port_status,
     get_stp_port_stats,
+    set_rstp,
+    get_rstp_status,
+    set_rstp_port,
+    get_rstp_port_status,
     set_queues,
     bundle_set,
     bundle_remove,
@@ -4972,6 +5630,8 @@ const struct ofproto_class ofproto_dpif_class = {
     is_mirror_output_bundle,
     forward_bpdu_changed,
     set_mac_table_config,
+    set_mcast_snooping,
+    set_mcast_snooping_port,
     set_realdev,
     NULL,                       /* meter_get_features */
     NULL,                       /* meter_set */
@@ -4983,4 +5643,5 @@ const struct ofproto_class ofproto_dpif_class = {
     group_dealloc,              /* group_dealloc */
     group_modify,               /* group_modify */
     group_get_stats,            /* group_get_stats */
+    get_datapath_version,       /* get_datapath_version */
 };