-lacp_run(struct bridge *br)
-{
- size_t i, j;
- struct ofpbuf packet;
-
- ofpbuf_init(&packet, ETH_HEADER_LEN + LACP_PDU_LEN);
-
- for (i = 0; i < br->n_ports; i++) {
- struct port *port = br->ports[i];
-
- if (!port->lacp) {
- continue;
- }
-
- for (j = 0; j < port->n_ifaces; j++) {
- struct iface *iface = port->ifaces[j];
-
- if (time_msec() > iface->lacp_rx) {
- if (iface->lacp_status & LACP_CURRENT) {
- iface_set_lacp_expired(iface);
- } else if (iface->lacp_status & LACP_EXPIRED) {
- iface_set_lacp_defaulted(iface);
- }
- }
- }
-
- if (port->lacp_need_update) {
- lacp_update_ifaces(port);
- }
-
- for (j = 0; j < port->n_ifaces; j++) {
- struct iface *iface = port->ifaces[j];
- uint8_t ea[ETH_ADDR_LEN];
- int error;
-
- if (time_msec() < iface->lacp_tx || !lacp_iface_may_tx(iface)) {
- continue;
- }
-
- error = netdev_get_etheraddr(iface->netdev, ea);
- if (!error) {
- iface->lacp_actor.state = iface_get_lacp_state(iface);
- compose_lacp_packet(&packet, &iface->lacp_actor,
- &iface->lacp_partner, ea);
- iface_send_packet(iface, &packet);
- } else {
- static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 10);
- VLOG_ERR_RL(&rl, "iface %s: failed to obtain Ethernet address "
- "(%s)", iface->name, strerror(error));
- }
-
- iface->lacp_tx = time_msec() +
- (iface->lacp_partner.state & LACP_STATE_TIME
- ? LACP_FAST_TIME_TX
- : LACP_SLOW_TIME_TX);
- }
- }
- ofpbuf_uninit(&packet);
-}
-
-static void
-lacp_wait(struct bridge *br)
-{
- size_t i, j;
-
- for (i = 0; i < br->n_ports; i++) {
- struct port *port = br->ports[i];
-
- if (!port->lacp) {
- continue;
- }
-
- for (j = 0; j < port->n_ifaces; j++) {
- struct iface *iface = port->ifaces[j];
-
- if (lacp_iface_may_tx(iface)) {
- poll_timer_wait_until(iface->lacp_tx);
- }
-
- if (iface->lacp_status & (LACP_CURRENT | LACP_EXPIRED)) {
- poll_timer_wait_until(iface->lacp_rx);
- }
- }
- }
-}
-\f
-/* Bonding functions. */
-
-/* Statistics for a single interface on a bonded port, used for load-based
- * bond rebalancing. */
-struct slave_balance {
- struct iface *iface; /* The interface. */
- uint64_t tx_bytes; /* Sum of hashes[*]->tx_bytes. */
-
- /* All the "bond_entry"s that are assigned to this interface, in order of
- * increasing tx_bytes. */
- struct bond_entry **hashes;
- size_t n_hashes;
-};
-
-static const char *
-bond_mode_to_string(enum bond_mode bm) {
- static char *bm_slb = "balance-slb";
- static char *bm_ab = "active-backup";
- static char *bm_tcp = "balance-tcp";
-
- switch (bm) {
- case BM_SLB: return bm_slb;
- case BM_AB: return bm_ab;
- case BM_TCP: return bm_tcp;
- }
-
- NOT_REACHED();
- return NULL;
-}
-
-/* Sorts pointers to pointers to bond_entries in ascending order by the
- * interface to which they are assigned, and within a single interface in
- * ascending order of bytes transmitted. */
-static int
-compare_bond_entries(const void *a_, const void *b_)
-{
- const struct bond_entry *const *ap = a_;
- const struct bond_entry *const *bp = b_;
- const struct bond_entry *a = *ap;
- const struct bond_entry *b = *bp;
- if (a->iface_idx != b->iface_idx) {
- return a->iface_idx > b->iface_idx ? 1 : -1;
- } else if (a->tx_bytes != b->tx_bytes) {
- return a->tx_bytes > b->tx_bytes ? 1 : -1;
- } else {
- return 0;
- }
-}
-
-/* Sorts slave_balances so that enabled ports come first, and otherwise in
- * *descending* order by number of bytes transmitted. */
-static int
-compare_slave_balance(const void *a_, const void *b_)
-{
- const struct slave_balance *a = a_;
- const struct slave_balance *b = b_;
- if (a->iface->enabled != b->iface->enabled) {
- return a->iface->enabled ? -1 : 1;
- } else if (a->tx_bytes != b->tx_bytes) {
- return a->tx_bytes > b->tx_bytes ? -1 : 1;
- } else {
- return 0;
- }
-}
-
-static void
-swap_bals(struct slave_balance *a, struct slave_balance *b)
-{
- struct slave_balance tmp = *a;
- *a = *b;
- *b = tmp;
-}
-
-/* Restores the 'n_bals' slave_balance structures in 'bals' to sorted order
- * given that 'p' (and only 'p') might be in the wrong location.
- *
- * This function invalidates 'p', since it might now be in a different memory
- * location. */
-static void
-resort_bals(struct slave_balance *p,
- struct slave_balance bals[], size_t n_bals)