static void
queue_tx(struct lswitch *sw, struct ofpbuf *b)
{
int retval = rconn_send_with_limit(sw->rconn, b, sw->queued, 10);
if (retval && retval != ENOTCONN) {
if (retval == EAGAIN) {
VLOG_INFO_RL(&rl, "%016llx: %s: tx queue overflow",
sw->datapath_id, rconn_get_name(sw->rconn));
} else {
VLOG_WARN_RL(&rl, "%016llx: %s: send: %s",
sw->datapath_id, rconn_get_name(sw->rconn),
ovs_strerror(retval));
}
}
}
static void
rate_limit_periodic_cb(void *rl_)
{
struct rate_limiter *rl = rl_;
int i;
/* Drain some packets out of the bucket if possible, but limit the number
* of iterations to allow other code to get work done too. */
refill_bucket(rl);
for (i = 0; rl->n_queued && get_token(rl) && i < 50; i++) {
/* Use a small, arbitrary limit for the amount of queuing to do here,
* because the TCP connection is responsible for buffering and there is
* no point in trying to transmit faster than the TCP connection can
* handle. */
struct ofpbuf *b = dequeue_packet(rl);
if (rconn_send_with_limit(rl->remote_rconn, b, &rl->n_txq, 10)) {
rl->n_tx_dropped++;
}
}
}
