Ejemplo n.º 1
0
static void
octe_init(void *arg)
{
	struct ifnet *ifp;
	cvm_oct_private_t *priv;

	priv = arg;
	ifp = priv->ifp;

	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0)
		octe_stop(priv);

	if (priv->open != NULL)
		priv->open(ifp);

	if (((ifp->if_flags ^ priv->if_flags) & (IFF_ALLMULTI | IFF_MULTICAST | IFF_PROMISC)) != 0)
		cvm_oct_common_set_multicast_list(ifp);

	cvm_oct_common_set_mac_address(ifp, IF_LLADDR(ifp));

	cvm_oct_common_poll(ifp);

	if (priv->miibus != NULL)
		mii_mediachg(device_get_softc(priv->miibus));

	ifp->if_drv_flags |= IFF_DRV_RUNNING;
	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
}
Ejemplo n.º 2
0
/**
 * Periodic timer tick for slow management operations
 *
 * @param arg    Device to check
 */
static void cvm_do_timer(void *arg)
{
	static int port;
	static int updated;
	if (port < CVMX_PIP_NUM_INPUT_PORTS) {
		if (cvm_oct_device[port]) {
			int queues_per_port;
			int qos;
			cvm_oct_private_t *priv = (cvm_oct_private_t *)cvm_oct_device[port]->if_softc;

			cvm_oct_common_poll(priv->ifp);
			if (priv->need_link_update) {
				updated++;
				taskqueue_enqueue(cvm_oct_link_taskq, &priv->link_task);
			}

			queues_per_port = cvmx_pko_get_num_queues(port);
			/* Drain any pending packets in the free list */
			for (qos = 0; qos < queues_per_port; qos++) {
				if (_IF_QLEN(&priv->tx_free_queue[qos]) > 0) {
					IF_LOCK(&priv->tx_free_queue[qos]);
					while (_IF_QLEN(&priv->tx_free_queue[qos]) > cvmx_fau_fetch_and_add32(priv->fau+qos*4, 0)) {
						struct mbuf *m;

						_IF_DEQUEUE(&priv->tx_free_queue[qos], m);
						m_freem(m);
					}
					IF_UNLOCK(&priv->tx_free_queue[qos]);

					/*
					 * XXX locking!
					 */
					priv->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
				}
			}
		}
		port++;
		/* Poll the next port in a 50th of a second.
		   This spreads the polling of ports out a little bit */
		callout_reset(&cvm_oct_poll_timer, hz / 50, cvm_do_timer, NULL);
	} else {
		port = 0;
		/* If any updates were made in this run, continue iterating at
		 * 1/50th of a second, so that if a link has merely gone down
		 * temporarily (e.g. because of interface reinitialization) it
		 * will not be forced to stay down for an entire second.
		 */
		if (updated > 0) {
			updated = 0;
			callout_reset(&cvm_oct_poll_timer, hz / 50, cvm_do_timer, NULL);
		} else {
			/* All ports have been polled. Start the next iteration through
			   the ports in one second */
			callout_reset(&cvm_oct_poll_timer, hz, cvm_do_timer, NULL);
		}
	}
}