Beispiel #1
0
static int cvm_oct_remove(struct platform_device *pdev)
{
	int port;

	/* Disable POW interrupt */
	if (OCTEON_IS_MODEL(OCTEON_CN68XX))
		cvmx_write_csr(CVMX_SSO_WQ_INT_THRX(pow_receive_group), 0);
	else
		cvmx_write_csr(CVMX_POW_WQ_INT_THRX(pow_receive_group), 0);

	cvmx_ipd_disable();

	/* Free the interrupt handler */
	free_irq(OCTEON_IRQ_WORKQ0 + pow_receive_group, cvm_oct_device);

	atomic_inc_return(&cvm_oct_poll_queue_stopping);
	cancel_delayed_work_sync(&cvm_oct_rx_refill_work);

	cvm_oct_rx_shutdown();
	cvm_oct_tx_shutdown();

	cvmx_pko_disable();

	/* Free the ethernet devices */
	for (port = 0; port < TOTAL_NUMBER_OF_PORTS; port++) {
		if (cvm_oct_device[port]) {
			struct net_device *dev = cvm_oct_device[port];
			struct octeon_ethernet *priv = netdev_priv(dev);

			cancel_delayed_work_sync(&priv->port_periodic_work);

			cvm_oct_tx_shutdown_dev(dev);
			unregister_netdev(dev);
			free_netdev(dev);
			cvm_oct_device[port] = NULL;
		}
	}


	cvmx_pko_shutdown();

	cvmx_ipd_free_ptr();

	/* Free the HW pools */
	cvm_oct_mem_empty_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE,
			      num_packet_buffers);
	cvm_oct_mem_empty_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE,
			      num_packet_buffers);
	if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL)
		cvm_oct_mem_empty_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL,
				      CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, 128);
	return 0;
}
Beispiel #2
0
static int cvm_oct_remove(struct platform_device *pdev)
{
	int port;

	cvmx_ipd_disable();

	atomic_inc_return(&cvm_oct_poll_queue_stopping);
	cancel_delayed_work_sync(&cvm_oct_rx_refill_work);

	cvm_oct_rx_shutdown();
	cvm_oct_tx_shutdown();

	cvmx_pko_disable();

	/* Free the ethernet devices */
	for (port = 0; port < TOTAL_NUMBER_OF_PORTS; port++) {
		if (cvm_oct_device[port]) {
			struct net_device *dev = cvm_oct_device[port];
			struct octeon_ethernet *priv = netdev_priv(dev);

			cancel_delayed_work_sync(&priv->port_periodic_work);

			cvm_oct_tx_shutdown_dev(dev);
			unregister_netdev(dev);
			free_netdev(dev);
			cvm_oct_device[port] = NULL;
		}
	}

	cvmx_pko_shutdown();

	cvmx_ipd_free_ptr();

	/* Free the HW pools */
	cvm_oct_mem_empty_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE,
			      num_packet_buffers);
	cvm_oct_mem_empty_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE,
			      num_packet_buffers);
	if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL)
		cvm_oct_mem_empty_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL,
				      CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, 128);
	return 0;
}
Beispiel #3
0
/**
 * Module / driver shutdown
 *
 * @return Zero on success
 */
void cvm_oct_cleanup_module(device_t bus)
{
	int port;
	struct octebus_softc *sc = device_get_softc(bus);

	/* Disable POW interrupt */
	cvmx_write_csr(CVMX_POW_WQ_INT_THRX(pow_receive_group), 0);

	/* Free the interrupt handler */
	bus_teardown_intr(bus, sc->sc_rx_irq, sc->sc_rx_intr_cookie);

	callout_stop(&cvm_oct_poll_timer);
	cvm_oct_rx_shutdown();

	cvmx_helper_shutdown_packet_io_global();

	/* Free the ethernet devices */
	for (port = 0; port < TOTAL_NUMBER_OF_PORTS; port++) {
		if (cvm_oct_device[port]) {
			cvm_oct_tx_shutdown(cvm_oct_device[port]);
#if 0
			unregister_netdev(cvm_oct_device[port]);
			kfree(cvm_oct_device[port]);
#else
			panic("%s: need to detach and free interface.", __func__);
#endif
			cvm_oct_device[port] = NULL;
		}
	}
	/* Free the HW pools */
	cvm_oct_mem_empty_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE, num_packet_buffers);
	cvm_oct_mem_empty_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE, num_packet_buffers);

	if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL)
		cvm_oct_mem_empty_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL, CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, cvm_oct_num_output_buffers);

	/* Disable FPA, all buffers are free, not done by helper shutdown. */
	cvmx_fpa_disable();
}