debian: Fix path for ovsdb-server in init script.
[sliver-openvswitch.git] / vswitchd / bridge.c
index 4f20e80..6a4ebe5 100644 (file)
@@ -148,6 +148,7 @@ static void bridge_add_ofproto_ports(struct bridge *);
 static void bridge_del_ofproto_ports(struct bridge *);
 static void bridge_refresh_ofp_port(struct bridge *);
 static void bridge_configure_datapath_id(struct bridge *);
+static void bridge_configure_flow_eviction_threshold(struct bridge *);
 static void bridge_configure_netflow(struct bridge *);
 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
 static void bridge_configure_remotes(struct bridge *,
@@ -195,7 +196,9 @@ static void iface_set_mac(struct iface *);
 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
 static void iface_configure_cfm(struct iface *);
-static bool iface_refresh_cfm_stats(struct iface *iface);
+static bool iface_refresh_cfm_stats(struct iface *);
+static void iface_refresh_stats(struct iface *);
+static void iface_refresh_status(struct iface *);
 static bool iface_get_carrier(const struct iface *);
 static bool iface_is_synthetic(const struct iface *);
 
@@ -214,6 +217,7 @@ bridge_init(const char *remote)
 {
     /* Create connection to database. */
     idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
+    ovsdb_idl_set_lock(idl, "ovs_vswitchd");
 
     ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
     ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
@@ -401,7 +405,7 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
 
             port_configure(port);
 
-            HMAP_FOR_EACH (iface, ofp_port_node, &br->ifaces) {
+            LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
                 iface_configure_cfm(iface);
                 iface_configure_qos(iface, port->cfg->qos);
                 iface_set_mac(iface);
@@ -409,6 +413,7 @@ bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
         }
         bridge_configure_mirrors(br);
         bridge_configure_datapath_id(br);
+        bridge_configure_flow_eviction_threshold(br);
         bridge_configure_remotes(br, managers, n_managers);
         bridge_configure_netflow(br);
         bridge_configure_sflow(br, &sflow_bridge_number);
@@ -533,6 +538,7 @@ port_configure(struct port *port)
     ofproto_bundle_register(port->bridge->ofproto, port, &s);
 
     /* Clean up. */
+    free(s.slaves);
     free(s.trunks);
     free(s.lacp_slaves);
     free(s.bond_stable_ids);
@@ -865,6 +871,12 @@ bridge_add_ofproto_ports(struct bridge *br)
                           iface->name, strerror(error));
             }
 
+            /* Populate stats columns in new Interface rows. */
+            if (iface->netdev && !iface->cfg->mtu) {
+                iface_refresh_stats(iface);
+                iface_refresh_status(iface);
+            }
+
             /* Add the port, if necessary. */
             if (iface->netdev && iface->ofp_port < 0) {
                 uint16_t ofp_port;
@@ -952,6 +964,22 @@ bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
                                 &ovsrec_bridge_col_other_config, key);
 }
 
+/* Set Flow eviction threshold */
+static void
+bridge_configure_flow_eviction_threshold(struct bridge *br)
+{
+    const char *threshold_str;
+    unsigned threshold;
+
+    threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
+    if (threshold_str) {
+        threshold = strtoul(threshold_str, NULL, 10);
+    } else {
+        threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
+    }
+    ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
+}
+
 static void
 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
                           struct iface **hw_addr_iface)
@@ -1022,9 +1050,6 @@ bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
             /* Grab MAC. */
             error = netdev_get_etheraddr(iface->netdev, iface_ea);
             if (error) {
-                static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
-                VLOG_ERR_RL(&rl, "failed to obtain Ethernet address of %s: %s",
-                            iface->name, strerror(error));
                 continue;
             }
         }
@@ -1216,17 +1241,19 @@ static bool
 iface_refresh_cfm_stats(struct iface *iface)
 {
     const struct ovsrec_interface *cfg = iface->cfg;
-    const struct cfm *cfm;
     bool changed = false;
+    int fault;
 
-    cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
+    fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
+                                       iface->ofp_port);
 
-    if (!cfm) {
+    if (fault < 0) {
         return false;
     }
 
-    if (cfg->n_cfm_fault != 1 || cfg->cfm_fault[0] != cfm->fault) {
-        ovsrec_interface_set_cfm_fault(cfg, &cfm->fault, 1);
+    if (cfg->n_cfm_fault != 1 || cfg->cfm_fault[0] != fault) {
+        bool fault_bool = fault;
+        ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
         changed = true;
     }
 
@@ -1250,30 +1277,25 @@ iface_refresh_lacp_stats(struct iface *iface)
 static void
 iface_refresh_stats(struct iface *iface)
 {
-    struct iface_stat {
-        char *name;
-        int offset;
-    };
-    static const struct iface_stat iface_stats[] = {
-        { "rx_packets", offsetof(struct netdev_stats, rx_packets) },
-        { "tx_packets", offsetof(struct netdev_stats, tx_packets) },
-        { "rx_bytes", offsetof(struct netdev_stats, rx_bytes) },
-        { "tx_bytes", offsetof(struct netdev_stats, tx_bytes) },
-        { "rx_dropped", offsetof(struct netdev_stats, rx_dropped) },
-        { "tx_dropped", offsetof(struct netdev_stats, tx_dropped) },
-        { "rx_errors", offsetof(struct netdev_stats, rx_errors) },
-        { "tx_errors", offsetof(struct netdev_stats, tx_errors) },
-        { "rx_frame_err", offsetof(struct netdev_stats, rx_frame_errors) },
-        { "rx_over_err", offsetof(struct netdev_stats, rx_over_errors) },
-        { "rx_crc_err", offsetof(struct netdev_stats, rx_crc_errors) },
-        { "collisions", offsetof(struct netdev_stats, collisions) },
-    };
-    enum { N_STATS = ARRAY_SIZE(iface_stats) };
-    const struct iface_stat *s;
-
-    char *keys[N_STATS];
-    int64_t values[N_STATS];
-    int n;
+#define IFACE_STATS                             \
+    IFACE_STAT(rx_packets,      "rx_packets")   \
+    IFACE_STAT(tx_packets,      "tx_packets")   \
+    IFACE_STAT(rx_bytes,        "rx_bytes")     \
+    IFACE_STAT(tx_bytes,        "tx_bytes")     \
+    IFACE_STAT(rx_dropped,      "rx_dropped")   \
+    IFACE_STAT(tx_dropped,      "tx_dropped")   \
+    IFACE_STAT(rx_errors,       "rx_errors")    \
+    IFACE_STAT(tx_errors,       "tx_errors")    \
+    IFACE_STAT(rx_frame_errors, "rx_frame_err") \
+    IFACE_STAT(rx_over_errors,  "rx_over_err")  \
+    IFACE_STAT(rx_crc_errors,   "rx_crc_err")   \
+    IFACE_STAT(collisions,      "collisions")
+
+#define IFACE_STAT(MEMBER, NAME) NAME,
+    static char *keys[] = { IFACE_STATS };
+#undef IFACE_STAT
+    int64_t values[ARRAY_SIZE(keys)];
+    int i;
 
     struct netdev_stats stats;
 
@@ -1285,17 +1307,32 @@ iface_refresh_stats(struct iface *iface)
      * all-1s, and we will deal with that correctly below. */
     netdev_get_stats(iface->netdev, &stats);
 
-    n = 0;
-    for (s = iface_stats; s < &iface_stats[N_STATS]; s++) {
-        uint64_t value = *(uint64_t *) (((char *) &stats) + s->offset);
-        if (value != UINT64_MAX) {
-            keys[n] = s->name;
-            values[n] = value;
-            n++;
-        }
+    /* Copy statistics into values[] array. */
+    i = 0;
+#define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
+    IFACE_STATS;
+#undef IFACE_STAT
+    assert(i == ARRAY_SIZE(keys));
+
+    ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
+#undef IFACE_STATS
+}
+
+static bool
+enable_system_stats(const struct ovsrec_open_vswitch *cfg)
+{
+    const char *enable;
+
+    /* Use other-config:enable-system-stats by preference. */
+    enable = get_ovsrec_key_value(&cfg->header_,
+                                  &ovsrec_open_vswitch_col_other_config,
+                                  "enable-statistics");
+    if (enable) {
+        return !strcmp(enable, "true");
     }
 
-    ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
+    /* Disable by default. */
+    return false;
 }
 
 static void
@@ -1305,7 +1342,9 @@ refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
     struct shash stats;
 
     shash_init(&stats);
-    get_system_stats(&stats);
+    if (enable_system_stats(cfg)) {
+        get_system_stats(&stats);
+    }
 
     ovsdb_datum_from_shash(&datum, &stats);
     ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
@@ -1328,13 +1367,20 @@ nx_role_to_str(enum nx_role role)
 }
 
 static void
-bridge_refresh_controller_status(const struct bridge *br)
+refresh_controller_status(void)
 {
+    struct bridge *br;
     struct shash info;
     const struct ovsrec_controller *cfg;
 
-    ofproto_get_ofproto_controller_info(br->ofproto, &info);
+    shash_init(&info);
 
+    /* Accumulate status for controllers on all bridges. */
+    HMAP_FOR_EACH (br, node, &all_bridges) {
+        ofproto_get_ofproto_controller_info(br->ofproto, &info);
+    }
+
+    /* Update each controller in the database with current status. */
     OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
         struct ofproto_controller_info *cinfo =
             shash_find_data(&info, cfg->target);
@@ -1364,6 +1410,24 @@ bridge_run(void)
     bool database_changed;
     struct bridge *br;
 
+    /* (Re)configure if necessary. */
+    database_changed = ovsdb_idl_run(idl);
+    if (ovsdb_idl_is_lock_contended(idl)) {
+        static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
+        struct bridge *br, *next_br;
+
+        VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
+                    "disabling this process until it goes away");
+
+        HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
+            bridge_destroy(br);
+        }
+        return;
+    } else if (!ovsdb_idl_has_lock(idl)) {
+        return;
+    }
+    cfg = ovsrec_open_vswitch_first(idl);
+
     /* Let each bridge do the work that it needs to do. */
     datapath_destroyed = false;
     HMAP_FOR_EACH (br, node, &all_bridges) {
@@ -1376,10 +1440,6 @@ bridge_run(void)
         }
     }
 
-    /* (Re)configure if necessary. */
-    database_changed = ovsdb_idl_run(idl);
-    cfg = ovsrec_open_vswitch_first(idl);
-
     /* Re-configure SSL.  We do this on every trip through the main loop,
      * instead of just when the database changes, because the contents of the
      * key and certificate files can change without the database changing.
@@ -1428,9 +1488,9 @@ bridge_run(void)
                         iface_refresh_status(iface);
                     }
                 }
-                bridge_refresh_controller_status(br);
             }
             refresh_system_stats(cfg);
+            refresh_controller_status();
             ovsdb_idl_txn_commit(txn);
             ovsdb_idl_txn_destroy(txn); /* XXX */
         }
@@ -1468,16 +1528,18 @@ bridge_run(void)
 void
 bridge_wait(void)
 {
-    struct bridge *br;
-
-    HMAP_FOR_EACH (br, node, &all_bridges) {
-        ofproto_wait(br->ofproto);
-    }
     ovsdb_idl_wait(idl);
-    poll_timer_wait_until(stats_timer);
+    if (!hmap_is_empty(&all_bridges)) {
+        struct bridge *br;
+
+        HMAP_FOR_EACH (br, node, &all_bridges) {
+            ofproto_wait(br->ofproto);
+        }
+        poll_timer_wait_until(stats_timer);
 
-    if (db_limiter > time_msec()) {
-        poll_timer_wait_until(db_limiter);
+        if (db_limiter > time_msec()) {
+            poll_timer_wait_until(db_limiter);
+        }
     }
 }
 \f
@@ -2447,6 +2509,7 @@ iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
     } else {
         struct iface_delete_queues_cbdata cbdata;
         struct shash details;
+        bool queue_zero;
         size_t i;
 
         /* Configure top-level Qos for 'iface'. */
@@ -2462,16 +2525,28 @@ iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
         netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
 
         /* Configure queues for 'iface'. */
+        queue_zero = false;
         for (i = 0; i < qos->n_queues; i++) {
             const struct ovsrec_queue *queue = qos->value_queues[i];
             unsigned int queue_id = qos->key_queues[i];
 
+            if (queue_id == 0) {
+                queue_zero = true;
+            }
+
             shash_from_ovs_idl_map(queue->key_other_config,
                                    queue->value_other_config,
                                    queue->n_other_config, &details);
             netdev_set_queue(iface->netdev, queue_id, &details);
             shash_destroy(&details);
         }
+        if (!queue_zero) {
+            static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
+            VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
+                         "queue (queue 0).  Packets not directed to a "
+                         "correctly configured queue may be dropped.",
+                         iface->name);
+        }
     }
 
     netdev_set_policing(iface->netdev,
@@ -2483,24 +2558,26 @@ static void
 iface_configure_cfm(struct iface *iface)
 {
     const struct ovsrec_interface *cfg = iface->cfg;
-    struct cfm cfm;
+    struct cfm_settings s;
+    uint16_t remote_mpid;
 
     if (!cfg->n_cfm_mpid || !cfg->n_cfm_remote_mpid) {
         ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
         return;
     }
 
-    cfm.mpid = *cfg->cfm_mpid;
-    cfm.name = iface->name;
-    cfm.interval = atoi(get_interface_other_config(iface->cfg,
-                                                   "cfm_interval", "0"));
+    s.mpid = *cfg->cfm_mpid;
+    remote_mpid = *cfg->cfm_remote_mpid;
+    s.remote_mpids = &remote_mpid;
+    s.n_remote_mpids = 1;
 
-    if (cfm.interval <= 0) {
-        cfm.interval = 1000;
+    s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
+                                                 "0"));
+    if (s.interval <= 0) {
+        s.interval = 1000;
     }
 
-    ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port,
-                         &cfm, *cfg->cfm_remote_mpid);
+    ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
 }
 
 /* Read carrier or miimon status directly from 'iface''s netdev, according to
@@ -2689,7 +2766,6 @@ mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
                              &s.srcs, &s.n_srcs);
         mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
                              &s.dsts, &s.n_dsts);
-
     }
 
     /* Get VLAN selection. */