COVERAGE_DEFINE(bridge_reconfigure);
+/* Configuration of an uninstantiated iface. */
+struct if_cfg {
+ struct hmap_node hmap_node; /* Node in bridge's if_cfg_todo. */
+ const struct ovsrec_interface *cfg; /* Interface record. */
+ const struct ovsrec_port *parent; /* Parent port record. */
+};
+
+/* OpenFlow port slated for removal from ofproto. */
+struct ofpp_garbage {
+ struct list list_node; /* Node in bridge's ofpp_garbage. */
+ uint16_t ofp_port; /* Port to be deleted. */
+};
+
struct iface {
/* These members are always valid. */
struct list port_elem; /* Element in struct port's "ifaces" list. */
struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
struct hmap iface_by_name; /* "struct iface"s indexed by name. */
+ struct list ofpp_garbage; /* "struct ofpp_garbage" slated for removal. */
+ struct hmap if_cfg_todo; /* "struct if_cfg"s slated for creation.
+ Indexed on 'cfg->name'. */
+
/* Port mirroring. */
struct hmap mirrors; /* "struct mirror" indexed by UUID. */
* This allows the rest of the code to catch up on important things like
* forwarding packets. */
#define OFP_PORT_ACTION_WINDOW 10
-static bool need_reconfigure = false;
+static bool reconfiguring = false;
static void add_del_bridges(const struct ovsrec_open_vswitch *);
-static void bridge_del_ofprotos(void);
-static bool bridge_add_ofprotos(struct bridge *);
+static void bridge_update_ofprotos(void);
static void bridge_create(const struct ovsrec_bridge *);
static void bridge_destroy(struct bridge *);
static struct bridge *bridge_lookup(const char *name);
struct ovsrec_controller ***controllersp);
static void bridge_add_del_ports(struct bridge *,
const unsigned long int *splinter_vlans);
-static void bridge_add_ofproto_ports(struct bridge *,
- long long int *port_action_timer);
-static void bridge_del_ofproto_ports(struct bridge *,
- long long int *port_action_timer);
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 uint64_t bridge_pick_datapath_id(struct bridge *,
const uint8_t bridge_ea[ETH_ADDR_LEN],
struct iface *hw_addr_iface);
+static void bridge_queue_if_cfg(struct bridge *,
+ const struct ovsrec_interface *,
+ const struct ovsrec_port *);
static uint64_t dpid_from_hash(const void *, size_t nbytes);
static bool bridge_has_bond_fake_iface(const struct bridge *,
const char *name);
static unixctl_cb_func qos_unixctl_show;
static struct port *port_create(struct bridge *, const struct ovsrec_port *);
-static void port_add_ifaces(struct port *);
static void port_del_ifaces(struct port *);
static void port_destroy(struct port *);
static struct port *port_lookup(const struct bridge *, const char *name);
static void mirror_refresh_stats(struct mirror *);
static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
-static struct iface *iface_create(struct port *port,
- const struct ovsrec_interface *if_cfg);
+static void iface_create(struct bridge *, struct if_cfg *, int ofp_port);
+static void iface_refresh_type(struct iface *);
static void iface_destroy(struct iface *);
static struct iface *iface_lookup(const struct bridge *, const char *name);
static struct iface *iface_find(const char *name);
+static struct if_cfg *if_cfg_lookup(const struct bridge *, const char *name);
static struct iface *iface_from_ofp_port(const struct bridge *,
uint16_t ofp_port);
static void iface_set_mac(struct iface *);
bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
{
unsigned long int *splinter_vlans;
- long long int port_action_timer;
- struct sockaddr_in *managers;
- struct bridge *br, *next;
- int sflow_bridge_number;
- size_t n_managers;
+ struct bridge *br;
COVERAGE_INC(bridge_reconfigure);
- port_action_timer = LLONG_MAX;
- need_reconfigure = false;
+ assert(!reconfiguring);
+ reconfiguring = true;
- /* Create and destroy "struct bridge"s, "struct port"s, and "struct
- * iface"s according to 'ovs_cfg', with only very minimal configuration
- * otherwise.
+ /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
+ * to 'ovs_cfg' while update the "if_cfg_queue", with only very minimal
+ * configuration otherwise.
*
- * This is mostly an update to bridge data structures. Very little is
- * pushed down to ofproto or lower layers. */
+ * This is mostly an update to bridge data structures. Nothing is pushed
+ * down to ofproto or lower layers. */
add_del_bridges(ovs_cfg);
splinter_vlans = collect_splinter_vlans(ovs_cfg);
HMAP_FOR_EACH (br, node, &all_bridges) {
}
free(splinter_vlans);
- /* Delete all datapaths and datapath ports that are no longer configured.
- *
- * The kernel will reject any attempt to add a given port to a datapath if
- * that port already belongs to a different datapath, so we must do all
- * port deletions before any port additions. A datapath always has a
- * "local port" so we must delete not-configured datapaths too. */
- bridge_del_ofprotos();
+ /* Delete datapaths that are no longer configured, and create ones which
+ * don't exist but should. */
+ bridge_update_ofprotos();
+
+ /* Make sure each "struct iface" has a correct ofp_port in its ofproto. */
HMAP_FOR_EACH (br, node, &all_bridges) {
- if (br->ofproto) {
- bridge_del_ofproto_ports(br, &port_action_timer);
+ bridge_refresh_ofp_port(br);
+ }
+
+ /* Clear database records for "if_cfg"s which haven't been instantiated. */
+ HMAP_FOR_EACH (br, node, &all_bridges) {
+ struct if_cfg *if_cfg;
+
+ HMAP_FOR_EACH (if_cfg, hmap_node, &br->if_cfg_todo) {
+ iface_clear_db_record(if_cfg->cfg);
}
}
+}
- /* Create datapaths and datapath ports that are missing.
- *
- * After this is done, we have our final set of bridges, ports, and
- * interfaces. Every "struct bridge" has an ofproto, every "struct port"
- * has at least one iface, every "struct iface" has a valid ofp_port and
- * netdev. */
- HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
- if (!br->ofproto) {
- if (bridge_add_ofprotos(br)) {
- bridge_del_ofproto_ports(br, &port_action_timer);
- } else {
- bridge_destroy(br);
+static bool
+bridge_reconfigure_ofp(void)
+{
+ long long int deadline;
+ struct bridge *br;
+
+ time_refresh();
+ deadline = time_msec() + OFP_PORT_ACTION_WINDOW;
+
+ /* The kernel will reject any attempt to add a given port to a datapath if
+ * that port already belongs to a different datapath, so we must do all
+ * port deletions before any port additions. */
+ HMAP_FOR_EACH (br, node, &all_bridges) {
+ struct ofpp_garbage *garbage, *next;
+
+ LIST_FOR_EACH_SAFE (garbage, next, list_node, &br->ofpp_garbage) {
+ ofproto_port_del(br->ofproto, garbage->ofp_port);
+ list_remove(&garbage->list_node);
+ free(garbage);
+
+ time_refresh();
+ if (time_msec() >= deadline) {
+ return false;
}
}
}
+
HMAP_FOR_EACH (br, node, &all_bridges) {
- bridge_refresh_ofp_port(br);
- bridge_add_ofproto_ports(br, &port_action_timer);
+ struct if_cfg *if_cfg, *next;
+
+ HMAP_FOR_EACH_SAFE (if_cfg, next, hmap_node, &br->if_cfg_todo) {
+ iface_create(br, if_cfg, -1);
+ time_refresh();
+ if (time_msec() >= deadline) {
+ return false;
+ }
+ }
}
+ return true;
+}
+
+static bool
+bridge_reconfigure_continue(const struct ovsrec_open_vswitch *ovs_cfg)
+{
+ struct sockaddr_in *managers;
+ int sflow_bridge_number;
+ size_t n_managers;
+ struct bridge *br;
+ bool done;
+
+ assert(reconfiguring);
+ done = bridge_reconfigure_ofp();
+
/* Complete the configuration. */
sflow_bridge_number = 0;
collect_in_band_managers(ovs_cfg, &managers, &n_managers);
}
free(managers);
- if (!need_reconfigure) {
+ if (done) {
/* ovs-vswitchd has completed initialization, so allow the process that
* forked us to exit successfully. */
daemonize_complete();
+ reconfiguring = false;
}
+
+ return done;
}
-/* Iterate over all ofprotos and delete any of them that do not have a
- * configured bridge or that are the wrong type. */
+/* Delete ofprotos which aren't configured or have the wrong type. Create
+ * ofprotos which don't exist but need to. */
static void
-bridge_del_ofprotos(void)
+bridge_update_ofprotos(void)
{
+ struct bridge *br, *next;
struct sset names;
struct sset types;
const char *type;
+ /* Delete ofprotos with no bridge or with the wrong type. */
sset_init(&names);
sset_init(&types);
ofproto_enumerate_types(&types);
ofproto_enumerate_names(type, &names);
SSET_FOR_EACH (name, &names) {
- struct bridge *br = bridge_lookup(name);
+ br = bridge_lookup(name);
if (!br || strcmp(type, br->type)) {
ofproto_delete(name, type);
}
}
sset_destroy(&names);
sset_destroy(&types);
-}
-static bool
-bridge_add_ofprotos(struct bridge *br)
-{
- int error = ofproto_create(br->name, br->type, &br->ofproto);
- if (error) {
- VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
- return false;
+ /* Add ofprotos for bridges which don't have one yet. */
+ HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
+ struct bridge *br2;
+ int error;
+
+ if (br->ofproto) {
+ continue;
+ }
+
+ /* Remove ports from any datapath with the same name as 'br'. If we
+ * don't do this, creating 'br''s ofproto will fail because a port with
+ * the same name as its local port already exists. */
+ HMAP_FOR_EACH (br2, node, &all_bridges) {
+ struct ofproto_port ofproto_port;
+
+ if (!br2->ofproto) {
+ continue;
+ }
+
+ if (!ofproto_port_query_by_name(br2->ofproto, br->name,
+ &ofproto_port)) {
+ error = ofproto_port_del(br2->ofproto, ofproto_port.ofp_port);
+ if (error) {
+ VLOG_ERR("failed to delete port %s: %s", ofproto_port.name,
+ strerror(error));
+ }
+ ofproto_port_destroy(&ofproto_port);
+ }
+ }
+
+ error = ofproto_create(br->name, br->type, &br->ofproto);
+ if (error) {
+ VLOG_ERR("failed to create bridge %s: %s", br->name,
+ strerror(error));
+ bridge_destroy(br);
+ }
}
- return true;
}
static void
shash_destroy(&new_br);
}
-static bool
-may_port_action(long long int *port_action_timer)
-{
- if (need_reconfigure) {
- return false;
- }
-
- time_refresh();
- if (*port_action_timer == LLONG_MAX) {
- *port_action_timer = time_msec() + OFP_PORT_ACTION_WINDOW;
- } else if (time_msec() > *port_action_timer) {
- need_reconfigure = true;
- return false;
- }
- return true;
-}
-
-/* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
- * iface".
- *
- * The kernel will reject any attempt to add a given port to a datapath if that
- * port already belongs to a different datapath, so we must do all port
- * deletions before any port additions. */
-static void
-bridge_del_ofproto_ports(struct bridge *br,
- long long int *port_action_timer)
-{
- struct ofproto_port_dump dump;
- struct ofproto_port ofproto_port;
-
- OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
- const char *name = ofproto_port.name;
- struct iface *iface;
- const char *type;
- int error;
-
- /* Ignore the local port. We can't change it anyhow. */
- if (!strcmp(name, br->name)) {
- continue;
- }
-
- /* Get the type that 'ofproto_port' should have (ordinarily the
- * type of its corresponding iface) or NULL if it should be
- * deleted. */
- iface = iface_lookup(br, name);
- type = (iface ? iface->type
- : bridge_has_bond_fake_iface(br, name) ? "internal"
- : NULL);
-
- /* If it's the wrong type then delete the ofproto port. */
- if (type
- && !strcmp(ofproto_port.type, type)
- && (!iface || !iface->netdev
- || !strcmp(netdev_get_type(iface->netdev), type))) {
- continue;
- }
-
- if (may_port_action(port_action_timer)) {
- error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
- if (error) {
- VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
- br->name, name, strerror(error));
- } else {
- VLOG_INFO("bridge %s: removed interface %s (%d)", br->name,
- name, ofproto_port.ofp_port);
- }
- }
- if (iface) {
- netdev_close(iface->netdev);
- iface->netdev = NULL;
- }
- }
-}
-
static void
iface_set_ofp_port(struct iface *iface, int ofp_port)
{
iface_set_ofport(iface->cfg, ofp_port);
}
+static void
+bridge_ofproto_port_del(struct bridge *br, struct ofproto_port ofproto_port)
+{
+ int error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
+ if (error) {
+ VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
+ br->name, ofproto_port.name, strerror(error));
+ } else {
+ VLOG_INFO("bridge %s: removed interface %s (%d)", br->name,
+ ofproto_port.name, ofproto_port.ofp_port);
+ }
+}
+
+/* Update bridges "if_cfg"s, "struct port"s, and "struct iface"s to be
+ * consistent with the ofp_ports in "br->ofproto". */
static void
bridge_refresh_ofp_port(struct bridge *br)
{
struct ofproto_port_dump dump;
struct ofproto_port ofproto_port;
- struct port *port;
+ struct port *port, *port_next;
- /* Clear all the "ofp_port"es. */
+ /* Clear each "struct iface"s ofp_port so we can get its correct value. */
hmap_clear(&br->ifaces);
HMAP_FOR_EACH (port, hmap_node, &br->ports) {
struct iface *iface;
}
}
- /* Obtain the correct "ofp_port"s from ofproto. */
+ /* Obtain the correct "ofp_port"s from ofproto. Find any if_cfg's which
+ * already exist in the datapath and promote them to full fledged "struct
+ * iface"s. Mark ports in the datapath which don't belong as garbage. */
OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
struct iface *iface = iface_lookup(br, ofproto_port.name);
if (iface) {
} else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
br->name, ofproto_port.ofp_port);
- } else {
+ } else if (!strcmp(ofproto_port.type, iface->type)) {
iface_set_ofp_port(iface, ofproto_port.ofp_port);
+ } else {
+ /* Port has incorrect type so delete it later. */
+ }
+ } else {
+ struct if_cfg *if_cfg = if_cfg_lookup(br, ofproto_port.name);
+
+ if (if_cfg) {
+ iface_create(br, if_cfg, ofproto_port.ofp_port);
+ } else if (bridge_has_bond_fake_iface(br, ofproto_port.name)
+ && strcmp(ofproto_port.type, "internal")) {
+ /* Bond fake iface with the wrong type. */
+ bridge_ofproto_port_del(br, ofproto_port);
+ } else {
+ struct ofpp_garbage *garbage = xmalloc(sizeof *garbage);
+ garbage->ofp_port = ofproto_port.ofp_port;
+ list_push_front(&br->ofpp_garbage, &garbage->list_node);
}
}
}
+
+ /* Some ifaces may not have "ofp_port"s in ofproto and therefore don't
+ * deserve to have "struct iface"s. Demote these to "if_cfg"s so that
+ * later they can be added to ofproto. */
+ HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
+ struct iface *iface, *iface_next;
+
+ LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
+ if (iface->ofp_port < 0) {
+ bridge_queue_if_cfg(br, iface->cfg, port->cfg);
+ iface_destroy(iface);
+ }
+ }
+
+ if (list_is_empty(&port->ifaces)) {
+ port_destroy(port);
+ }
+ }
}
-/* Add an ofproto port for any "struct iface" that doesn't have one.
- * Delete any "struct iface" for which this fails.
- * Delete any "struct port" that thereby ends up with no ifaces. */
+/* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
+ * port number 'ofp_port'. If ofp_port is negative, an OpenFlow port is
+ * automatically allocated for the iface. Takes ownership of and
+ * deallocates 'if_cfg'. */
static void
-bridge_add_ofproto_ports(struct bridge *br,
- long long int *port_action_timer)
+iface_create(struct bridge *br, struct if_cfg *if_cfg, int ofp_port)
{
- struct port *port, *next_port;
+ struct ofproto_port ofproto_port;
+ struct iface *iface;
+ struct port *port;
+ int error;
- HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
- struct iface *iface, *next_iface;
- struct ofproto_port ofproto_port;
+ assert(!iface_lookup(br, if_cfg->cfg->name));
- LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
- int error;
+ port = port_lookup(br, if_cfg->parent->name);
+ if (!port) {
+ port = port_create(br, if_cfg->parent);
+ }
- if (iface->ofp_port < 0 && !may_port_action(port_action_timer)) {
- iface_clear_db_record(iface->cfg);
- iface_destroy(iface);
- continue;
- }
+ iface = xzalloc(sizeof *iface);
+ iface->port = port;
+ iface->name = xstrdup(if_cfg->cfg->name);
+ iface->ofp_port = -1;
+ iface->netdev = NULL;
+ iface->cfg = if_cfg->cfg;
+ iface->need_refresh = true;
+ hmap_insert(&br->iface_by_name, &iface->name_node,
+ hash_string(iface->name, 0));
+ list_push_back(&port->ifaces, &iface->port_elem);
+ iface_refresh_type(iface);
+ if (ofp_port >= 0) {
+ iface_set_ofp_port(iface, ofp_port);
+ }
- /* Open the netdev. */
- if (!iface->netdev) {
- error = netdev_open(iface->name, iface->type, &iface->netdev);
- if (error) {
- VLOG_WARN("could not open network device %s (%s)",
- iface->name, strerror(error));
- }
+ hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
+ free(if_cfg);
+ if_cfg = NULL;
- if (iface->netdev
- && port->cfg->vlan_mode
- && !strcmp(port->cfg->vlan_mode, "splinter")) {
- netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
- }
- } else {
- error = 0;
- }
+ error = netdev_open(iface->name, iface->type, &iface->netdev);
+ if (error) {
+ VLOG_WARN("could not open network device %s (%s)", iface->name,
+ strerror(error));
+ }
- /* Configure the netdev. */
- if (iface->netdev) {
- struct shash args;
+ if (iface->netdev
+ && port->cfg->vlan_mode
+ && !strcmp(port->cfg->vlan_mode, "splinter")) {
+ netdev_turn_flags_on(iface->netdev, NETDEV_UP, true);
+ }
- shash_init(&args);
- shash_from_ovs_idl_map(iface->cfg->key_options,
- iface->cfg->value_options,
- iface->cfg->n_options, &args);
- error = netdev_set_config(iface->netdev, &args);
- shash_destroy(&args);
+ /* Configure the netdev. */
+ if (iface->netdev) {
+ struct shash args;
- if (error) {
- VLOG_WARN("could not configure network device %s (%s)",
- iface->name, strerror(error));
- netdev_close(iface->netdev);
- iface->netdev = NULL;
- }
- }
+ shash_init(&args);
+ shash_from_ovs_idl_map(iface->cfg->key_options,
+ iface->cfg->value_options,
+ iface->cfg->n_options, &args);
+ error = netdev_set_config(iface->netdev, &args);
+ shash_destroy(&args);
- /* Add the port, if necessary. */
- if (iface->netdev && iface->ofp_port < 0) {
- uint16_t ofp_port;
- int error;
-
- error = ofproto_port_add(br->ofproto, iface->netdev,
- &ofp_port);
- if (!error) {
- VLOG_INFO("bridge %s: added interface %s (%d)", br->name,
- iface->name, ofp_port);
- iface_set_ofp_port(iface, ofp_port);
- } else {
- netdev_close(iface->netdev);
- iface->netdev = NULL;
- }
- }
+ if (error) {
+ VLOG_WARN("could not configure network device %s (%s)",
+ iface->name, strerror(error));
+ netdev_close(iface->netdev);
+ iface->netdev = NULL;
+ }
+ }
- /* Populate stats columns in new Interface rows. */
- if (iface->netdev && iface->need_refresh) {
- iface_refresh_stats(iface);
- iface_refresh_status(iface);
- iface->need_refresh = false;
- }
+ /* Add the port, if necessary. */
+ if (iface->netdev && iface->ofp_port < 0) {
+ uint16_t new_ofp_port;
+ int error;
- /* Delete the iface if we failed. */
- if (iface->netdev && iface->ofp_port >= 0) {
- VLOG_DBG("bridge %s: interface %s is on port %d",
- br->name, iface->name, iface->ofp_port);
- } else {
- if (iface->netdev) {
- VLOG_ERR("bridge %s: missing %s interface, dropping",
- br->name, iface->name);
- } else {
- /* We already reported a related error, don't bother
- * duplicating it. */
- }
- if (!ofproto_port_query_by_name(br->ofproto, port->name,
- &ofproto_port)) {
- VLOG_INFO("bridge %s: removed interface %s (%d)",
- br->name, port->name, ofproto_port.ofp_port);
- ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
- ofproto_port_destroy(&ofproto_port);
- }
- iface_clear_db_record(iface->cfg);
- iface_destroy(iface);
- }
+ error = ofproto_port_add(br->ofproto, iface->netdev, &new_ofp_port);
+ if (!error) {
+ VLOG_INFO("bridge %s: added interface %s (%d)", br->name,
+ iface->name, ofp_port);
+ iface_set_ofp_port(iface, new_ofp_port);
+ } else {
+ netdev_close(iface->netdev);
+ iface->netdev = NULL;
}
+ }
- if (list_is_empty(&port->ifaces)) {
- if (!need_reconfigure) {
- VLOG_WARN("%s port has no interfaces, dropping", port->name);
- }
- port_destroy(port);
- continue;
+ /* Populate stats columns in new Interface rows. */
+ if (iface->netdev && iface->need_refresh) {
+ iface_refresh_stats(iface);
+ iface_refresh_status(iface);
+ iface->need_refresh = false;
+ }
+
+ /* Delete the iface if we failed. */
+ if (iface->netdev && iface->ofp_port >= 0) {
+ VLOG_DBG("bridge %s: interface %s is on port %d",
+ br->name, iface->name, iface->ofp_port);
+ } else {
+ if (iface->netdev) {
+ VLOG_ERR("bridge %s: missing %s interface, dropping",
+ br->name, iface->name);
+ } else {
+ /* We already reported a related error, don't bother
+ * duplicating it. */
}
+ if (!ofproto_port_query_by_name(br->ofproto, port->name,
+ &ofproto_port)) {
+ VLOG_INFO("bridge %s: removed interface %s (%d)",
+ br->name, port->name, ofproto_port.ofp_port);
+ bridge_ofproto_port_del(br, ofproto_port);
+ ofproto_port_destroy(&ofproto_port);
+ }
+ iface_clear_db_record(iface->cfg);
+ iface_destroy(iface);
+ }
- /* Add bond fake iface if necessary. */
- if (port_is_bond_fake_iface(port)) {
- if (ofproto_port_query_by_name(br->ofproto, port->name,
- &ofproto_port)) {
- struct netdev *netdev;
- int error;
-
- error = netdev_open(port->name, "internal", &netdev);
- if (!error) {
- /* There are unlikely to be a great number of fake
- * interfaces so we don't bother rate limiting their
- * creation. */
- ofproto_port_add(br->ofproto, netdev, NULL);
- netdev_close(netdev);
- } else {
- VLOG_WARN("could not open network device %s (%s)",
- port->name, strerror(error));
- }
+ if (list_is_empty(&port->ifaces)) {
+ port_destroy(port);
+ return;
+ }
+
+ /* Add bond fake iface if necessary. */
+ if (port_is_bond_fake_iface(port)) {
+ if (ofproto_port_query_by_name(br->ofproto, port->name,
+ &ofproto_port)) {
+ struct netdev *netdev;
+ int error;
+
+ error = netdev_open(port->name, "internal", &netdev);
+ if (!error) {
+ ofproto_port_add(br->ofproto, netdev, NULL);
+ netdev_close(netdev);
} else {
- /* Already exists, nothing to do. */
- ofproto_port_destroy(&ofproto_port);
+ VLOG_WARN("could not open network device %s (%s)",
+ port->name, strerror(error));
}
+ } else {
+ /* Already exists, nothing to do. */
+ ofproto_port_destroy(&ofproto_port);
}
}
}
void
bridge_run(void)
{
+ static const struct ovsrec_open_vswitch null_cfg;
const struct ovsrec_open_vswitch *cfg;
+ struct ovsdb_idl_txn *reconf_txn = NULL;
bool vlan_splinters_changed;
struct bridge *br;
/* (Re)configure if necessary. */
- 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;
+ if (!reconfiguring) {
+ ovsdb_idl_run(idl);
- VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
- "disabling this process until it goes away");
+ if (ovsdb_idl_is_lock_contended(idl)) {
+ static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
+ struct bridge *br, *next_br;
- HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
- bridge_destroy(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;
}
- return;
- } else if (!ovsdb_idl_has_lock(idl)) {
- return;
}
cfg = ovsrec_open_vswitch_first(idl);
stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
}
- /* If VLAN splinters are in use, then we need to reconfigure if VLAN usage
- * has changed. */
- vlan_splinters_changed = false;
- if (vlan_splinters_enabled_anywhere) {
- HMAP_FOR_EACH (br, node, &all_bridges) {
- if (ofproto_has_vlan_usage_changed(br->ofproto)) {
- vlan_splinters_changed = true;
- break;
+ if (!reconfiguring) {
+ /* If VLAN splinters are in use, then we need to reconfigure if VLAN
+ * usage has changed. */
+ vlan_splinters_changed = false;
+ if (vlan_splinters_enabled_anywhere) {
+ HMAP_FOR_EACH (br, node, &all_bridges) {
+ if (ofproto_has_vlan_usage_changed(br->ofproto)) {
+ vlan_splinters_changed = true;
+ break;
+ }
+ }
+ }
+
+ if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
+ idl_seqno = ovsdb_idl_get_seqno(idl);
+ if (cfg) {
+ reconf_txn = ovsdb_idl_txn_create(idl);
+ bridge_reconfigure(cfg);
+ } else {
+ /* We still need to reconfigure to avoid dangling pointers to
+ * now-destroyed ovsrec structures inside bridge data. */
+ bridge_reconfigure(&null_cfg);
}
}
}
- if (need_reconfigure || ovsdb_idl_get_seqno(idl) != idl_seqno
- || vlan_splinters_changed) {
- idl_seqno = ovsdb_idl_get_seqno(idl);
+ if (reconfiguring) {
if (cfg) {
- struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
-
- bridge_reconfigure(cfg);
-
- ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
- ovsdb_idl_txn_commit(txn);
- ovsdb_idl_txn_destroy(txn); /* XXX */
+ if (!reconf_txn) {
+ reconf_txn = ovsdb_idl_txn_create(idl);
+ }
+ if (bridge_reconfigure_continue(cfg)) {
+ ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
+ }
} else {
- /* We still need to reconfigure to avoid dangling pointers to
- * now-destroyed ovsrec structures inside bridge data. */
- static const struct ovsrec_open_vswitch null_cfg;
-
- bridge_reconfigure(&null_cfg);
+ bridge_reconfigure_continue(&null_cfg);
}
}
+ if (reconf_txn) {
+ ovsdb_idl_txn_commit(reconf_txn);
+ ovsdb_idl_txn_destroy(reconf_txn);
+ reconf_txn = NULL;
+ }
+
/* Refresh system and interface stats if necessary. */
if (time_msec() >= stats_timer) {
if (cfg) {
{
ovsdb_idl_wait(idl);
- if (need_reconfigure) {
+ if (reconfiguring) {
poll_immediate_wake();
}
hmap_init(&br->iface_by_name);
hmap_init(&br->mirrors);
+ hmap_init(&br->if_cfg_todo);
+ list_init(&br->ofpp_garbage);
+
hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
}
if (br) {
struct mirror *mirror, *next_mirror;
struct port *port, *next_port;
+ struct if_cfg *if_cfg, *next_if_cfg;
+ struct ofpp_garbage *garbage, *next_garbage;
HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
port_destroy(port);
HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
mirror_destroy(mirror);
}
+ HMAP_FOR_EACH_SAFE (if_cfg, next_if_cfg, hmap_node, &br->if_cfg_todo) {
+ hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
+ free(if_cfg);
+ }
+ LIST_FOR_EACH_SAFE (garbage, next_garbage, list_node,
+ &br->ofpp_garbage) {
+ list_remove(&garbage->list_node);
+ free(garbage);
+ }
+
hmap_remove(&all_bridges, &br->node);
ofproto_destroy(br->ofproto);
hmap_destroy(&br->ifaces);
hmap_destroy(&br->ports);
hmap_destroy(&br->iface_by_name);
hmap_destroy(&br->mirrors);
+ hmap_destroy(&br->if_cfg_todo);
free(br->name);
free(br->type);
free(br);
return n_controllers;
}
-/* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
- * those configured in 'br->cfg'. */
+static void
+bridge_queue_if_cfg(struct bridge *br,
+ const struct ovsrec_interface *cfg,
+ const struct ovsrec_port *parent)
+{
+ struct if_cfg *if_cfg = xmalloc(sizeof *if_cfg);
+
+ if_cfg->cfg = cfg;
+ if_cfg->parent = parent;
+ hmap_insert(&br->if_cfg_todo, &if_cfg->hmap_node,
+ hash_string(if_cfg->cfg->name, 0));
+}
+
+/* Deletes "struct port"s and "struct iface"s under 'br' which aren't
+ * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
+ * 'br' needs to complete its configuration. */
static void
bridge_add_del_ports(struct bridge *br,
const unsigned long int *splinter_vlans)
{
+ struct shash_node *port_node;
struct port *port, *next;
- struct shash_node *node;
struct shash new_ports;
size_t i;
+ assert(hmap_is_empty(&br->if_cfg_todo));
+
/* Collect new ports. */
shash_init(&new_ports);
for (i = 0; i < br->cfg->n_ports; i++) {
}
}
- /* Create new ports.
- * Add new interfaces to existing ports. */
- SHASH_FOR_EACH (node, &new_ports) {
- struct port *port = port_lookup(br, node->name);
- if (!port) {
- struct ovsrec_port *cfg = node->data;
- port = port_create(br, cfg);
- }
- port_add_ifaces(port);
- if (list_is_empty(&port->ifaces)) {
- VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
- br->name, port->name);
- port_destroy(port);
+ SHASH_FOR_EACH (port_node, &new_ports) {
+ const struct ovsrec_port *port = port_node->data;
+ size_t i;
+
+ for (i = 0; i < port->n_interfaces; i++) {
+ const struct ovsrec_interface *cfg = port->interfaces[i];
+ struct iface *iface = iface_lookup(br, cfg->name);
+
+ if (iface) {
+ iface->cfg = cfg;
+ iface_refresh_type(iface);
+ } else {
+ bridge_queue_if_cfg(br, cfg, port);
+ }
}
}
+
shash_destroy(&new_ports);
}
sset_destroy(&new_ifaces);
}
-/* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
- * existing ones. */
-static void
-port_add_ifaces(struct port *port)
-{
- struct shash new_ifaces;
- struct shash_node *node;
- size_t i;
-
- /* Collect new ifaces. */
- shash_init(&new_ifaces);
- for (i = 0; i < port->cfg->n_interfaces; i++) {
- const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
- if (strcmp(cfg->type, "null")
- && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
- VLOG_WARN("port %s: %s specified twice as port interface",
- port->name, cfg->name);
- iface_clear_db_record(cfg);
- }
- }
-
- /* Create new interfaces.
- * Update interface types and 'cfg' members. */
- SHASH_FOR_EACH (node, &new_ifaces) {
- const struct ovsrec_interface *cfg = node->data;
- const char *iface_name = node->name;
- struct iface *iface;
-
- iface = iface_lookup(port->bridge, iface_name);
- if (!iface) {
- iface = iface_create(port, cfg);
- } else {
- iface->cfg = cfg;
- }
-
- /* Determine interface type. The local port always has type
- * "internal". Other ports take their type from the database and
- * default to "system" if none is specified. */
- iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
- : cfg->type[0] ? cfg->type
- : "system");
- }
- shash_destroy(&new_ifaces);
-}
-
static void
port_destroy(struct port *port)
{
\f
/* Interface functions. */
-static struct iface *
-iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
+static void
+iface_refresh_type(struct iface *iface)
{
- struct bridge *br = port->bridge;
- struct iface *iface;
- char *name = if_cfg->name;
-
- iface = xzalloc(sizeof *iface);
- iface->port = port;
- iface->name = xstrdup(name);
- iface->ofp_port = -1;
- iface->netdev = NULL;
- iface->cfg = if_cfg;
- iface->need_refresh = true;
-
- hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
-
- list_push_back(&port->ifaces, &iface->port_elem);
-
- VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
-
- return iface;
+ /* Determine interface type. The local port always has type
+ * "internal". Other ports take their type from the database and
+ * default to "system" if none is specified. */
+ iface->type = (!strcmp(iface->name, iface->port->bridge->name) ? "internal"
+ : iface->cfg->type[0] ? iface->cfg->type
+ : "system");
}
static void
return NULL;
}
+static struct if_cfg *
+if_cfg_lookup(const struct bridge *br, const char *name)
+{
+ struct if_cfg *if_cfg;
+
+ HMAP_FOR_EACH_WITH_HASH (if_cfg, hmap_node, hash_string(name, 0),
+ &br->if_cfg_todo) {
+ if (!strcmp(if_cfg->cfg->name, name)) {
+ return if_cfg;
+ }
+ }
+
+ return NULL;
+}
+
static struct iface *
iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
{
projects / openvswitch / commitdiff