/* Link status. */
long long delay_expires; /* Time after which 'enabled' may change. */
- bool up; /* Last link status read from netdev. */
bool enabled; /* May be chosen for flows? */
- bool lacp_may_enable; /* LACP considers this interface bondable. */
+ bool may_enable; /* Client considers this slave bondable. */
tag_type tag; /* Tag associated with this slave. */
/* Rebalancing info. Used only by bond_rebalance(). */
uint64_t tx_bytes; /* Sum across 'tx_bytes' of entries. */
/* BM_STABLE specific bonding info. */
- uint16_t stb_id; /* ID used for 'stb_slaves' ordering. */
+ uint32_t stb_id; /* ID used for 'stb_slaves' ordering. */
};
/* A bond, that is, a set of network devices grouped to improve performance or
tag_type stb_tag; /* Tag associated with this bond. */
/* Monitoring. */
- enum bond_detect_mode detect; /* Link status mode, one of BLSM_*. */
struct netdev_monitor *monitor; /* detect == BLSM_CARRIER only. */
- long long int miimon_interval; /* Miimon status refresh interval. */
- long long int miimon_next_update; /* Time of next miimon update. */
/* Legacy compatibility. */
long long int next_fake_iface_update; /* LLONG_MAX if disabled. */
static void bond_entry_reset(struct bond *);
static struct bond_slave *bond_slave_lookup(struct bond *, const void *slave_);
-static bool bond_is_link_up(struct bond *, struct netdev *);
static void bond_enable_slave(struct bond_slave *, bool enable,
struct tag_set *);
static void bond_link_status_update(struct bond_slave *, struct tag_set *);
NOT_REACHED();
}
-/* Attempts to parse 's' as the name of a bond link status detection mode. If
- * successful, stores the mode in '*detect' and returns true. Otherwise
- * returns false without modifying '*detect'. */
-bool
-bond_detect_mode_from_string(enum bond_detect_mode *detect, const char *s)
-{
- if (!strcmp(s, bond_detect_mode_to_string(BLSM_CARRIER))) {
- *detect = BLSM_CARRIER;
- } else if (!strcmp(s, bond_detect_mode_to_string(BLSM_MIIMON))) {
- *detect = BLSM_MIIMON;
- } else {
- return false;
- }
- return true;
-}
-
-/* Returns a string representing 'detect'. */
-const char *
-bond_detect_mode_to_string(enum bond_detect_mode detect)
-{
- switch (detect) {
- case BLSM_CARRIER:
- return "carrier";
- case BLSM_MIIMON:
- return "miimon";
- }
- NOT_REACHED();
-}
\f
/* Creates and returns a new bond whose configuration is initially taken from
* 's'.
hmap_init(&bond->slaves);
bond->no_slaves_tag = tag_create_random();
bond->stb_tag = tag_create_random();
- bond->miimon_next_update = LLONG_MAX;
bond->next_fake_iface_update = LLONG_MAX;
+ bond->monitor = netdev_monitor_create();
bond_reconfigure(bond, s);
hmap_insert(&all_bonds, &bond->hmap_node, hash_string(bond->name, 0));
}
- bond->detect = s->detect;
- bond->miimon_interval = s->miimon_interval;
bond->updelay = s->up_delay;
bond->downdelay = s->down_delay;
bond->rebalance_interval = s->rebalance_interval;
revalidate = true;
}
- if (bond->detect == BLSM_CARRIER) {
- struct bond_slave *slave;
-
- if (!bond->monitor) {
- bond->monitor = netdev_monitor_create();
- }
-
- HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
- netdev_monitor_add(bond->monitor, slave->netdev);
- }
- } else {
- netdev_monitor_destroy(bond->monitor);
- bond->monitor = NULL;
-
- if (bond->miimon_next_update == LLONG_MAX) {
- bond->miimon_next_update = time_msec() + bond->miimon_interval;
- }
- }
-
if (s->fake_iface) {
if (bond->next_fake_iface_update == LLONG_MAX) {
bond->next_fake_iface_update = time_msec();
return revalidate;
}
+static void
+bond_slave_set_netdev__(struct bond *bond, struct bond_slave *slave,
+ struct netdev *netdev)
+{
+ if (slave->netdev != netdev) {
+ if (slave->netdev) {
+ netdev_monitor_remove(bond->monitor, slave->netdev);
+ }
+ netdev_monitor_add(bond->monitor, netdev);
+ slave->netdev = netdev;
+ }
+}
+
/* Registers 'slave_' as a slave of 'bond'. The 'slave_' pointer is an
* arbitrary client-provided pointer that uniquely identifies a slave within a
* bond. If 'slave_' already exists within 'bond' then this function
* 'slave_' or destroying 'bond'.
*/
void
-bond_slave_register(struct bond *bond, void *slave_, uint16_t stb_id,
+bond_slave_register(struct bond *bond, void *slave_, uint32_t stb_id,
struct netdev *netdev)
{
struct bond_slave *slave = bond_slave_lookup(bond, slave_);
slave->bond = bond;
slave->aux = slave_;
slave->delay_expires = LLONG_MAX;
- slave->up = bond_is_link_up(bond, netdev);
slave->name = xstrdup(netdev_get_name(netdev));
bond->bond_revalidate = true;
slave->enabled = false;
- bond_enable_slave(slave, slave->up, NULL);
+ bond_enable_slave(slave, netdev_get_carrier(netdev), NULL);
}
if (slave->stb_id != stb_id) {
bond->bond_revalidate = true;
}
- if (slave->netdev != netdev) {
- if (bond->monitor) {
- if (slave->netdev) {
- netdev_monitor_remove(bond->monitor, slave->netdev);
- }
- netdev_monitor_add(bond->monitor, netdev);
- }
- slave->netdev = netdev;
- }
+ bond_slave_set_netdev__(bond, slave, netdev);
free(slave->name);
slave->name = xstrdup(netdev_get_name(netdev));
}
+/* Updates the network device to be used with 'slave_' to 'netdev'.
+ *
+ * This is useful if the caller closes and re-opens the network device
+ * registered with bond_slave_register() but doesn't need to change anything
+ * else. */
+void
+bond_slave_set_netdev(struct bond *bond, void *slave_, struct netdev *netdev)
+{
+ struct bond_slave *slave = bond_slave_lookup(bond, slave_);
+ if (slave) {
+ bond_slave_set_netdev__(bond, slave, netdev);
+ }
+}
+
/* Unregisters 'slave_' from 'bond'. If 'bond' does not contain such a slave
* then this function has no effect.
*
return;
}
- if (bond->monitor) {
- netdev_monitor_remove(bond->monitor, slave->netdev);
- }
-
+ netdev_monitor_remove(bond->monitor, slave->netdev);
bond_enable_slave(slave, false, NULL);
del_active = bond->active_slave == slave;
}
}
-/* Should be called on each slave in 'bond' before bond_run() to indicate the
- * results of lacp_slave_may_enable() on 'slave_'. */
+/* Should be called on each slave in 'bond' before bond_run() to indicate
+ * whether or not 'slave_' may be enabled. This function is intended to allow
+ * other protocols to have some impact on bonding decisions. For example LACP
+ * or high level link monitoring protocols may decide that a given slave should
+ * not be able to send traffic. */
void
-bond_slave_set_lacp_may_enable(struct bond *bond, void *slave_,
- bool may_enable)
+bond_slave_set_may_enable(struct bond *bond, void *slave_, bool may_enable)
{
- bond_slave_lookup(bond, slave_)->lacp_may_enable = may_enable;
+ bond_slave_lookup(bond, slave_)->may_enable = may_enable;
}
/* Performs periodic maintenance on 'bond'. The caller must provide 'tags' to
bond->lacp_negotiated = lacp_negotiated;
- /* Update link status. */
- if (bond->detect == BLSM_CARRIER
- || time_msec() >= bond->miimon_next_update)
- {
- HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
- slave->up = bond_is_link_up(bond, slave->netdev);
- }
- bond->miimon_next_update = time_msec() + bond->miimon_interval;
+ if (bond->monitor) {
+ netdev_monitor_flush(bond->monitor);
}
/* Enable slaves based on link status and LACP feedback. */
{
struct bond_slave *slave;
- if (bond->detect == BLSM_CARRIER) {
- netdev_monitor_poll_wait(bond->monitor);
- } else {
- poll_timer_wait_until(bond->miimon_next_update);
- }
+ netdev_monitor_poll_wait(bond->monitor);
HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
if (slave->delay_expires != LLONG_MAX) {
ds_put_format(&ds, "bond-hash-basis: %"PRIu32"\n", bond->basis);
- ds_put_format(&ds, "bond-detect-mode: %s\n",
- bond->monitor ? "carrier" : "miimon");
-
- if (!bond->monitor) {
- ds_put_format(&ds, "bond-miimon-interval: %lld\n",
- bond->miimon_interval);
- }
-
ds_put_format(&ds, "updelay: %d ms\n", bond->updelay);
ds_put_format(&ds, "downdelay: %d ms\n", bond->downdelay);
HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
struct bond_entry *be;
- struct flow flow;
/* Basic info. */
ds_put_format(&ds, "\nslave %s: %s\n",
slave->delay_expires - time_msec());
}
- ds_put_format(&ds, "\tlacp_may_enable: %s\n",
- slave->lacp_may_enable ? "true" : "false");
+ ds_put_format(&ds, "\tmay_enable: %s\n",
+ slave->may_enable ? "true" : "false");
if (!bond_is_balanced(bond)) {
continue;
}
/* Hashes. */
- memset(&flow, 0, sizeof flow);
for (be = bond->hash; be <= &bond->hash[BOND_MASK]; be++) {
int hash = be - bond->hash;
return NULL;
}
-static bool
-bond_is_link_up(struct bond *bond, struct netdev *netdev)
-{
- return (bond->detect == BLSM_CARRIER
- ? netdev_get_carrier(netdev)
- : netdev_get_miimon(netdev));
-}
-
static void
bond_enable_slave(struct bond_slave *slave, bool enable, struct tag_set *tags)
{
struct bond *bond = slave->bond;
bool up;
- up = slave->up && slave->lacp_may_enable;
+ up = netdev_get_carrier(slave->netdev) && slave->may_enable;
if ((up == slave->enabled) != (slave->delay_expires == LLONG_MAX)) {
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
VLOG_INFO_RL(&rl, "interface %s: link state %s",
static bool
bond_is_tcp_hash(const struct bond *bond)
{
- return (bond->balance == BM_TCP || bond->balance == BM_STABLE)
- && bond->lacp_negotiated;
+ return (bond->balance == BM_TCP && bond->lacp_negotiated)
+ || bond->balance == BM_STABLE;
}
static unsigned int
bond_hash_tcp(const struct flow *flow, uint16_t vlan, uint32_t basis)
{
struct flow hash_flow = *flow;
- hash_flow.vlan_tci = vlan;
+ hash_flow.vlan_tci = htons(vlan);
/* The symmetric quality of this hash function is not required, but
* flow_hash_symmetric_l4 already exists, and is sufficient for our
best = NULL;
HMAP_FOR_EACH (slave, hmap_node, &bond->slaves) {
if (slave->delay_expires != LLONG_MAX
- && slave->lacp_may_enable
+ && slave->may_enable
&& (!best || slave->delay_expires < best->delay_expires)) {
best = slave;
}