ofproto: Do not update stats on fake bond interface.
[cascardo/ovs.git] / vswitchd / bridge.c
index 9764c1f..1060719 100644 (file)
@@ -34,6 +34,7 @@
 #include "lacp.h"
 #include "list.h"
 #include "mac-learning.h"
+#include "mcast-snooping.h"
 #include "meta-flow.h"
 #include "netdev.h"
 #include "ofp-print.h"
@@ -41,6 +42,7 @@
 #include "ofpbuf.h"
 #include "ofproto/bond.h"
 #include "ofproto/ofproto.h"
+#include "ovs-numa.h"
 #include "poll-loop.h"
 #include "seq.h"
 #include "sha1.h"
@@ -173,8 +175,13 @@ static uint64_t connectivity_seqno = LLONG_MIN;
  * update if the previous transaction status is 'TXN_INCOMPLETE'.
  *
  * 'statux_txn' is NULL if there is no ongoing status update.
+ *
+ * If the previous database transaction was failed (is not 'TXN_SUCCESS',
+ * 'TXN_UNCHANGED' or 'TXN_INCOMPLETE'), 'status_txn_try_again' is set to true,
+ * which will cause the main thread wake up soon and retry the status update.
  */
 static struct ovsdb_idl_txn *status_txn;
+static bool status_txn_try_again;
 
 /* When the status update transaction returns 'TXN_INCOMPLETE', should register a
  * timeout in 'STATUS_CHECK_AGAIN_MSEC' to check again. */
@@ -218,9 +225,11 @@ static void bridge_configure_datapath_id(struct bridge *);
 static void bridge_configure_netflow(struct bridge *);
 static void bridge_configure_forward_bpdu(struct bridge *);
 static void bridge_configure_mac_table(struct bridge *);
+static void bridge_configure_mcast_snooping(struct bridge *);
 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
 static void bridge_configure_ipfix(struct bridge *);
 static void bridge_configure_stp(struct bridge *);
+static void bridge_configure_rstp(struct bridge *);
 static void bridge_configure_tables(struct bridge *);
 static void bridge_configure_dp_desc(struct bridge *);
 static void bridge_configure_remotes(struct bridge *,
@@ -371,9 +380,14 @@ bridge_init(const char *remote)
 
     ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
     ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
+    ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_rstp_status);
+    ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_stp_enable);
+    ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_rstp_enable);
     ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
 
     ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
+    ovsdb_idl_omit_alert(idl, &ovsrec_port_col_rstp_status);
+    ovsdb_idl_omit_alert(idl, &ovsrec_port_col_rstp_statistics);
     ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
     ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
 
@@ -434,7 +448,9 @@ bridge_init(const char *remote)
     lacp_init();
     bond_init();
     cfm_init();
+    ovs_numa_init();
     stp_init();
+    rstp_init();
 }
 
 void
@@ -488,12 +504,15 @@ collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
 
         managers = xmalloc(sset_count(&targets) * sizeof *managers);
         SSET_FOR_EACH (target, &targets) {
-            struct sockaddr_storage ss;
+            union {
+                struct sockaddr_storage ss;
+                struct sockaddr_in in;
+            } sa;
 
             if (stream_parse_target_with_default_port(target, OVSDB_OLD_PORT,
-                                                      &ss)
-                && ss.ss_family == AF_INET) {
-                managers[n_managers++] = *(struct sockaddr_in *) &ss;
+                                                      &sa.ss)
+                && sa.ss.ss_family == AF_INET) {
+                managers[n_managers++] = sa.in;
             }
         }
     }
@@ -609,11 +628,13 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
         bridge_configure_mirrors(br);
         bridge_configure_forward_bpdu(br);
         bridge_configure_mac_table(br);
+        bridge_configure_mcast_snooping(br);
         bridge_configure_remotes(br, managers, n_managers);
         bridge_configure_netflow(br);
         bridge_configure_sflow(br, &sflow_bridge_number);
         bridge_configure_ipfix(br);
         bridge_configure_stp(br);
+        bridge_configure_rstp(br);
         bridge_configure_tables(br);
         bridge_configure_dp_desc(br);
     }
@@ -1152,6 +1173,15 @@ bridge_configure_ipfix(struct bridge *br)
         if (be_cfg->cache_max_flows) {
             be_opts.cache_max_flows = *be_cfg->cache_max_flows;
         }
+
+        be_opts.enable_tunnel_sampling = smap_get_bool(&be_cfg->other_config,
+                                             "enable-tunnel-sampling", true);
+
+        be_opts.enable_input_sampling = !smap_get_bool(&be_cfg->other_config,
+                                              "enable-input-sampling", false);
+
+        be_opts.enable_output_sampling = !smap_get_bool(&be_cfg->other_config,
+                                              "enable-output-sampling", false);
     }
 
     if (n_fe_opts > 0) {
@@ -1280,12 +1310,106 @@ port_configure_stp(const struct ofproto *ofproto, struct port *port,
     }
 }
 
+static void
+port_configure_rstp(const struct ofproto *ofproto, struct port *port,
+        struct ofproto_port_rstp_settings *port_s, int *port_num_counter)
+{
+    const char *config_str;
+    struct iface *iface;
+
+    if (!smap_get_bool(&port->cfg->other_config, "rstp-enable", true)) {
+        port_s->enable = false;
+        return;
+    } else {
+        port_s->enable = true;
+    }
+
+    /* RSTP over bonds is not supported. */
+    if (!list_is_singleton(&port->ifaces)) {
+        VLOG_ERR("port %s: cannot enable RSTP on bonds, disabling",
+                port->name);
+        port_s->enable = false;
+        return;
+    }
+
+    iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
+
+    /* Internal ports shouldn't participate in spanning tree, so
+     * skip them. */
+    if (!strcmp(iface->type, "internal")) {
+        VLOG_DBG("port %s: disable RSTP on internal ports", port->name);
+        port_s->enable = false;
+        return;
+    }
+
+    /* RSTP on mirror output ports is not supported. */
+    if (ofproto_is_mirror_output_bundle(ofproto, port)) {
+        VLOG_DBG("port %s: disable RSTP on mirror ports", port->name);
+        port_s->enable = false;
+        return;
+    }
+
+    config_str = smap_get(&port->cfg->other_config, "rstp-port-num");
+    if (config_str) {
+        unsigned long int port_num = strtoul(config_str, NULL, 0);
+        if (port_num < 1 || port_num > RSTP_MAX_PORTS) {
+            VLOG_ERR("port %s: invalid rstp-port-num", port->name);
+            port_s->enable = false;
+            return;
+        }
+        port_s->port_num = port_num;
+    } else {
+        if (*port_num_counter >= RSTP_MAX_PORTS) {
+            VLOG_ERR("port %s: too many RSTP ports, disabling", port->name);
+            port_s->enable = false;
+            return;
+        }
+        /* If rstp-port-num is not specified, use 0.
+         * rstp_port_set_port_number() will look for the first free one. */
+        port_s->port_num = 0;
+    }
+
+    config_str = smap_get(&port->cfg->other_config, "rstp-path-cost");
+    if (config_str) {
+        port_s->path_cost = strtoul(config_str, NULL, 10);
+    } else {
+        enum netdev_features current;
+        unsigned int mbps;
+
+        netdev_get_features(iface->netdev, &current, NULL, NULL, NULL);
+        mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
+        port_s->path_cost = rstp_convert_speed_to_cost(mbps);
+    }
+
+    config_str = smap_get(&port->cfg->other_config, "rstp-port-priority");
+    if (config_str) {
+        port_s->priority = strtoul(config_str, NULL, 0);
+    } else {
+        port_s->priority = RSTP_DEFAULT_PORT_PRIORITY;
+    }
+
+    port_s->admin_edge_port = smap_get_bool(&port->cfg->other_config,
+                                            "rstp-port-admin-edge", false);
+    port_s->auto_edge = smap_get_bool(&port->cfg->other_config,
+                                      "rstp-port-auto-edge", true);
+    port_s->mcheck = smap_get_bool(&port->cfg->other_config,
+                                   "rstp-port-mcheck", false);
+}
+
 /* Set spanning tree configuration on 'br'. */
 static void
 bridge_configure_stp(struct bridge *br)
 {
+    struct ofproto_rstp_status rstp_status;
+
+    ofproto_get_rstp_status(br->ofproto, &rstp_status);
     if (!br->cfg->stp_enable) {
         ofproto_set_stp(br->ofproto, NULL);
+    } else if (rstp_status.enabled) {
+        /* Do not activate STP if RSTP is enabled. */
+        VLOG_ERR("STP cannot be enabled if RSTP is running.");
+        ofproto_set_stp(br->ofproto, NULL);
+        ovsrec_bridge_set_stp_enable(br->cfg, false);
     } else {
         struct ofproto_stp_settings br_s;
         const char *config_str;
@@ -1375,6 +1499,113 @@ bridge_configure_stp(struct bridge *br)
     }
 }
 
+static void
+bridge_configure_rstp(struct bridge *br)
+{
+    struct ofproto_stp_status stp_status;
+
+    ofproto_get_stp_status(br->ofproto, &stp_status);
+    if (!br->cfg->rstp_enable) {
+        ofproto_set_rstp(br->ofproto, NULL);
+    } else if (stp_status.enabled) {
+        /* Do not activate RSTP if STP is enabled. */
+        VLOG_ERR("RSTP cannot be enabled if STP is running.");
+        ofproto_set_rstp(br->ofproto, NULL);
+        ovsrec_bridge_set_rstp_enable(br->cfg, false);
+    } else {
+        struct ofproto_rstp_settings br_s;
+        const char *config_str;
+        struct port *port;
+        int port_num_counter;
+
+        config_str = smap_get(&br->cfg->other_config, "rstp-address");
+        if (config_str) {
+            uint8_t ea[ETH_ADDR_LEN];
+
+            if (eth_addr_from_string(config_str, ea)) {
+                br_s.address = eth_addr_to_uint64(ea);
+            }
+            else {
+                br_s.address = eth_addr_to_uint64(br->ea);
+                VLOG_ERR("bridge %s: invalid rstp-address, defaulting "
+                        "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
+            }
+        }
+        else {
+            br_s.address = eth_addr_to_uint64(br->ea);
+        }
+
+        config_str = smap_get(&br->cfg->other_config, "rstp-priority");
+        if (config_str) {
+            br_s.priority = strtoul(config_str, NULL, 0);
+        } else {
+            br_s.priority = RSTP_DEFAULT_PRIORITY;
+        }
+
+        config_str = smap_get(&br->cfg->other_config, "rstp-ageing-time");
+        if (config_str) {
+            br_s.ageing_time = strtoul(config_str, NULL, 0);
+        } else {
+            br_s.ageing_time = RSTP_DEFAULT_AGEING_TIME;
+        }
+
+        config_str = smap_get(&br->cfg->other_config,
+                              "rstp-force-protocol-version");
+        if (config_str) {
+            br_s.force_protocol_version = strtoul(config_str, NULL, 0);
+        } else {
+            br_s.force_protocol_version = FPV_DEFAULT;
+        }
+
+        config_str = smap_get(&br->cfg->other_config, "rstp-max-age");
+        if (config_str) {
+            br_s.bridge_max_age = strtoul(config_str, NULL, 10);
+        } else {
+            br_s.bridge_max_age = RSTP_DEFAULT_BRIDGE_MAX_AGE;
+        }
+
+        config_str = smap_get(&br->cfg->other_config, "rstp-forward-delay");
+        if (config_str) {
+            br_s.bridge_forward_delay = strtoul(config_str, NULL, 10);
+        } else {
+            br_s.bridge_forward_delay = RSTP_DEFAULT_BRIDGE_FORWARD_DELAY;
+        }
+
+        config_str = smap_get(&br->cfg->other_config,
+                              "rstp-transmit-hold-count");
+        if (config_str) {
+            br_s.transmit_hold_count = strtoul(config_str, NULL, 10);
+        } else {
+            br_s.transmit_hold_count = RSTP_DEFAULT_TRANSMIT_HOLD_COUNT;
+        }
+
+        /* Configure RSTP on the bridge. */
+        if (ofproto_set_rstp(br->ofproto, &br_s)) {
+            VLOG_ERR("bridge %s: could not enable RSTP", br->name);
+            return;
+        }
+
+        port_num_counter = 0;
+        HMAP_FOR_EACH (port, hmap_node, &br->ports) {
+            struct ofproto_port_rstp_settings port_s;
+            struct iface *iface;
+
+            port_configure_rstp(br->ofproto, port, &port_s,
+                    &port_num_counter);
+
+            /* As bonds are not supported, just apply configuration to
+             * all interfaces. */
+            LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
+                if (ofproto_port_set_rstp(br->ofproto, iface->ofp_port,
+                            &port_s)) {
+                    VLOG_ERR("port %s: could not enable RSTP", port->name);
+                    continue;
+                }
+            }
+        }
+    }
+}
+
 static bool
 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
 {
@@ -1609,6 +1840,52 @@ bridge_configure_mac_table(struct bridge *br)
     ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
 }
 
+/* Set multicast snooping table configuration for 'br'. */
+static void
+bridge_configure_mcast_snooping(struct bridge *br)
+{
+    if (!br->cfg->mcast_snooping_enable) {
+        ofproto_set_mcast_snooping(br->ofproto, NULL);
+    } else {
+        struct port *port;
+        struct ofproto_mcast_snooping_settings br_s;
+        const char *idle_time_str;
+        const char *max_entries_str;
+
+        idle_time_str = smap_get(&br->cfg->other_config,
+                                 "mcast-snooping-aging-time");
+        br_s.idle_time = (idle_time_str && atoi(idle_time_str)
+                          ? atoi(idle_time_str)
+                          : MCAST_ENTRY_DEFAULT_IDLE_TIME);
+
+        max_entries_str = smap_get(&br->cfg->other_config,
+                                   "mcast-snooping-table-size");
+        br_s.max_entries = (max_entries_str && atoi(max_entries_str)
+                            ? atoi(max_entries_str)
+                            : MCAST_DEFAULT_MAX_ENTRIES);
+
+        br_s.flood_unreg = !smap_get_bool(&br->cfg->other_config,
+                                    "mcast-snooping-disable-flood-unregistered",
+                                    false);
+
+        /* Configure multicast snooping on the bridge */
+        if (ofproto_set_mcast_snooping(br->ofproto, &br_s)) {
+            VLOG_ERR("bridge %s: could not enable multicast snooping",
+                     br->name);
+            return;
+        }
+
+        HMAP_FOR_EACH (port, hmap_node, &br->ports) {
+            bool flood = smap_get_bool(&port->cfg->other_config,
+                                       "mcast-snooping-flood", false);
+            if (ofproto_port_set_mcast_snooping(br->ofproto, port, flood)) {
+                VLOG_ERR("port %s: could not configure mcast snooping",
+                         port->name);
+            }
+        }
+    }
+}
+
 static void
 find_local_hw_addr(const struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
                    const struct port *fake_br, struct iface **hw_addr_iface)
@@ -1820,7 +2097,8 @@ iface_refresh_netdev_status(struct iface *iface)
         return;
     }
 
-    if (iface->change_seq == netdev_get_change_seq(iface->netdev)) {
+    if (iface->change_seq == netdev_get_change_seq(iface->netdev)
+        && !status_txn_try_again) {
         return;
     }
 
@@ -1893,8 +2171,7 @@ iface_refresh_netdev_status(struct iface *iface)
 static void
 iface_refresh_ofproto_status(struct iface *iface)
 {
-    struct smap smap;
-    int current, error;
+    int current;
 
     if (iface_is_synthetic(iface)) {
         return;
@@ -1909,15 +2186,23 @@ iface_refresh_ofproto_status(struct iface *iface)
         ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
     }
 
-    iface_refresh_cfm_stats(iface);
+    if (ofproto_port_cfm_status_changed(iface->port->bridge->ofproto,
+                                        iface->ofp_port)
+        || status_txn_try_again) {
+        iface_refresh_cfm_stats(iface);
+    }
 
-    smap_init(&smap);
-    error = ofproto_port_get_bfd_status(iface->port->bridge->ofproto,
-                                        iface->ofp_port, &smap);
-    if (error >= 0) {
+    if (ofproto_port_bfd_status_changed(iface->port->bridge->ofproto,
+                                        iface->ofp_port)
+        || status_txn_try_again) {
+        struct smap smap;
+
+        smap_init(&smap);
+        ofproto_port_get_bfd_status(iface->port->bridge->ofproto,
+                                    iface->ofp_port, &smap);
         ovsrec_interface_set_bfd_status(iface->cfg, &smap);
+        smap_destroy(&smap);
     }
-    smap_destroy(&smap);
 }
 
 /* Writes 'iface''s CFM statistics to the database. 'iface' must not be
@@ -1926,14 +2211,12 @@ static void
 iface_refresh_cfm_stats(struct iface *iface)
 {
     const struct ovsrec_interface *cfg = iface->cfg;
-    struct ofproto_cfm_status status;
+    struct cfm_status status;
     int error;
 
     error = ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
                                         iface->ofp_port, &status);
-    if (error < 0) {
-        /* Do nothing if there is no status change since last update. */
-    } else if (error > 0) {
+    if (error > 0) {
         ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
         ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
         ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
@@ -2134,6 +2417,90 @@ port_refresh_stp_stats(struct port *port)
                                ARRAY_SIZE(int_values));
 }
 
+static void
+br_refresh_rstp_status(struct bridge *br)
+{
+    struct smap smap = SMAP_INITIALIZER(&smap);
+    struct ofproto *ofproto = br->ofproto;
+    struct ofproto_rstp_status status;
+
+    if (ofproto_get_rstp_status(ofproto, &status)) {
+        return;
+    }
+    if (!status.enabled) {
+        ovsrec_bridge_set_rstp_status(br->cfg, NULL);
+        return;
+    }
+    smap_add_format(&smap, "rstp_bridge_id", RSTP_ID_FMT,
+                    RSTP_ID_ARGS(status.bridge_id));
+    smap_add_format(&smap, "rstp_root_path_cost", "%d",
+                    status.root_path_cost);
+    smap_add_format(&smap, "rstp_root_id", RSTP_ID_FMT,
+                    RSTP_ID_ARGS(status.root_id));
+    smap_add_format(&smap, "rstp_designated_id", RSTP_ID_FMT,
+                    RSTP_ID_ARGS(status.designated_id));
+    smap_add_format(&smap, "rstp_designated_port_id", RSTP_PORT_ID_FMT,
+                    status.designated_port_id);
+    smap_add_format(&smap, "rstp_bridge_port_id", RSTP_PORT_ID_FMT,
+                    status.bridge_port_id);
+    ovsrec_bridge_set_rstp_status(br->cfg, &smap);
+    smap_destroy(&smap);
+}
+
+static void
+port_refresh_rstp_status(struct port *port)
+{
+    struct ofproto *ofproto = port->bridge->ofproto;
+    struct iface *iface;
+    struct ofproto_port_rstp_status status;
+    char *keys[3];
+    int64_t int_values[3];
+    struct smap smap;
+
+    if (port_is_synthetic(port)) {
+        return;
+    }
+
+    /* RSTP doesn't currently support bonds. */
+    if (!list_is_singleton(&port->ifaces)) {
+        ovsrec_port_set_rstp_status(port->cfg, NULL);
+        return;
+    }
+
+    iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
+    if (ofproto_port_get_rstp_status(ofproto, iface->ofp_port, &status)) {
+        return;
+    }
+
+    if (!status.enabled) {
+        ovsrec_port_set_rstp_status(port->cfg, NULL);
+        ovsrec_port_set_rstp_statistics(port->cfg, NULL, NULL, 0);
+        return;
+    }
+    /* Set Status column. */
+    smap_init(&smap);
+
+    smap_add_format(&smap, "rstp_port_id", RSTP_PORT_ID_FMT,
+                    status.port_id);
+    smap_add_format(&smap, "rstp_port_role", "%s",
+                    rstp_port_role_name(status.role));
+    smap_add_format(&smap, "rstp_port_state", "%s",
+                    rstp_state_name(status.state));
+
+    ovsrec_port_set_rstp_status(port->cfg, &smap);
+    smap_destroy(&smap);
+
+    /* Set Statistics column. */
+    keys[0] = "rstp_tx_count";
+    int_values[0] = status.tx_count;
+    keys[1] = "rstp_rx_count";
+    int_values[1] = status.rx_count;
+    keys[2] = "rstp_uptime";
+    int_values[2] = status.uptime;
+    ovsrec_port_set_rstp_statistics(port->cfg, keys, int_values,
+            ARRAY_SIZE(int_values));
+}
+
 static bool
 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
 {
@@ -2209,20 +2576,10 @@ refresh_controller_status(void)
             shash_find_data(&info, cfg->target);
 
         if (cinfo) {
-            struct smap smap = SMAP_INITIALIZER(&smap);
-            const char **values = cinfo->pairs.values;
-            const char **keys = cinfo->pairs.keys;
-            size_t i;
-
-            for (i = 0; i < cinfo->pairs.n; i++) {
-                smap_add(&smap, keys[i], values[i]);
-            }
-
             ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
             ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
                                            cinfo->role));
-            ovsrec_controller_set_status(cfg, &smap);
-            smap_destroy(&smap);
+            ovsrec_controller_set_status(cfg, &cinfo->pairs);
         } else {
             ovsrec_controller_set_is_connected(cfg, false);
             ovsrec_controller_set_role(cfg, NULL);
@@ -2344,6 +2701,9 @@ bridge_run(void)
          * of ovs-vswitchd, then keep the transaction around to monitor
          * it for completion. */
         if (initial_config_done) {
+            /* Always sets the 'status_txn_try_again' to check again,
+             * in case that this transaction fails. */
+            status_txn_try_again = true;
             ovsdb_idl_txn_commit(txn);
             ovsdb_idl_txn_destroy(txn);
         } else {
@@ -2420,17 +2780,19 @@ bridge_run(void)
 
         /* Check the need to update status. */
         seq = seq_read(connectivity_seq_get());
-        if (seq != connectivity_seqno) {
+        if (seq != connectivity_seqno || status_txn_try_again) {
             connectivity_seqno = seq;
             status_txn = ovsdb_idl_txn_create(idl);
             HMAP_FOR_EACH (br, node, &all_bridges) {
                 struct port *port;
 
                 br_refresh_stp_status(br);
+                br_refresh_rstp_status(br);
                 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
                     struct iface *iface;
 
                     port_refresh_stp_status(port);
+                    port_refresh_rstp_status(port);
                     LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
                         iface_refresh_netdev_status(iface);
                         iface_refresh_ofproto_status(iface);
@@ -2449,6 +2811,13 @@ bridge_run(void)
         if (status != TXN_INCOMPLETE) {
             ovsdb_idl_txn_destroy(status_txn);
             status_txn = NULL;
+
+            /* Sets the 'status_txn_try_again' if the transaction fails. */
+            if (status == TXN_SUCCESS || status == TXN_UNCHANGED) {
+                status_txn_try_again = false;
+            } else {
+                status_txn_try_again = true;
+            }
         }
     }
 
@@ -2483,11 +2852,14 @@ bridge_wait(void)
         poll_timer_wait_until(stats_timer);
     }
 
-    /* If the status database transaction is 'TXN_INCOMPLETE' in this run,
-     * register a timeout in 'STATUS_CHECK_AGAIN_MSEC'.  Else, wait on the
-     * global connectivity sequence number.  Note, this also helps batch
-     * multiple status changes into one transaction. */
+    /* If the 'status_txn' is non-null (transaction incomplete), waits for the
+     * transaction to complete.  If the status update to database needs to be
+     * run again (transaction fails), registers a timeout in
+     * 'STATUS_CHECK_AGAIN_MSEC'.  Otherwise, waits on the global connectivity
+     * sequence number. */
     if (status_txn) {
+        ovsdb_idl_txn_wait(status_txn);
+    } else if (status_txn_try_again) {
         poll_timer_wait_until(time_msec() + STATUS_CHECK_AGAIN_MSEC);
     } else {
         seq_wait(connectivity_seq_get(), connectivity_seqno);
@@ -3071,6 +3443,7 @@ bridge_configure_tables(struct bridge *br)
     j = 0;
     for (i = 0; i < n_tables; i++) {
         struct ofproto_table_settings s;
+        bool use_default_prefixes = true;
 
         s.name = NULL;
         s.max_flows = UINT_MAX;
@@ -3081,7 +3454,6 @@ bridge_configure_tables(struct bridge *br)
 
         if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
             struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
-            bool no_prefixes;
 
             s.name = cfg->name;
             if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
@@ -3110,15 +3482,15 @@ bridge_configure_tables(struct bridge *br)
                 }
             }
             /* Prefix lookup fields. */
-            no_prefixes = false;
             s.n_prefix_fields = 0;
             for (k = 0; k < cfg->n_prefixes; k++) {
                 const char *name = cfg->prefixes[k];
                 const struct mf_field *mf;
 
                 if (strcmp(name, "none") == 0) {
-                    no_prefixes = true;
-                    continue;
+                    use_default_prefixes = false;
+                    s.n_prefix_fields = 0;
+                    break;
                 }
                 mf = mf_from_name(name);
                 if (!mf) {
@@ -3136,27 +3508,30 @@ bridge_configure_tables(struct bridge *br)
                               "field not used: %s", br->name, name);
                     continue;
                 }
+                use_default_prefixes = false;
                 s.prefix_fields[s.n_prefix_fields++] = mf->id;
             }
-            if (s.n_prefix_fields == 0 && !no_prefixes) {
-                /* Use default values. */
-                s.n_prefix_fields = ARRAY_SIZE(default_prefix_fields);
-                memcpy(s.prefix_fields, default_prefix_fields,
-                       sizeof default_prefix_fields);
-            }
-            if (s.n_prefix_fields > 0) {
-                int k;
-                struct ds ds = DS_EMPTY_INITIALIZER;
-                for (k = 0; k < s.n_prefix_fields; k++) {
-                    if (k) {
-                        ds_put_char(&ds, ',');
-                    }
-                    ds_put_cstr(&ds, mf_from_id(s.prefix_fields[k])->name);
+        }
+        if (use_default_prefixes) {
+            /* Use default values. */
+            s.n_prefix_fields = ARRAY_SIZE(default_prefix_fields);
+            memcpy(s.prefix_fields, default_prefix_fields,
+                   sizeof default_prefix_fields);
+        } else {
+            int k;
+            struct ds ds = DS_EMPTY_INITIALIZER;
+            for (k = 0; k < s.n_prefix_fields; k++) {
+                if (k) {
+                    ds_put_char(&ds, ',');
                 }
-                VLOG_INFO("bridge %s table %d: Prefix lookup with: %s.",
-                          br->name, i, ds_cstr(&ds));
-                ds_destroy(&ds);
+                ds_put_cstr(&ds, mf_from_id(s.prefix_fields[k])->name);
+            }
+            if (s.n_prefix_fields == 0) {
+                ds_put_cstr(&ds, "none");
             }
+            VLOG_INFO("bridge %s table %d: Prefix lookup with: %s.",
+                      br->name, i, ds_cstr(&ds));
+            ds_destroy(&ds);
         }
 
         ofproto_configure_table(br->ofproto, i, &s);
@@ -3407,8 +3782,6 @@ port_configure_bond(struct port *port, struct bond_settings *s)
         s->rebalance_interval = 1000;
     }
 
-    s->fake_iface = port->cfg->bond_fake_iface;
-
     s->lacp_fallback_ab_cfg = smap_get_bool(&port->cfg->other_config,
                                        "lacp-fallback-ab", false);