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Commit 26d29ea7 authored by Anton Vorontsov's avatar Anton Vorontsov Committed by David S. Miller
Browse files

ucc_geth: add support for netpoll 



This patch adds netpoll support for the QE UCC Gigabit Ethernet
driver. Tested using netconsole and KGDBoE.

Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 80a9fad8

drivers/net/ucc_geth.c

+20 −0
Original line number Diff line number Diff line
@@ -3666,6 +3666,23 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info) 
	return IRQ_HANDLED;

}



#ifdef CONFIG_NET_POLL_CONTROLLER

/*

 * Polling 'interrupt' - used by things like netconsole to send skbs

 * without having to re-enable interrupts. It's not called while

 * the interrupt routine is executing.

 */

static void ucc_netpoll(struct net_device *dev)

{

	struct ucc_geth_private *ugeth = netdev_priv(dev);

	int irq = ugeth->ug_info->uf_info.irq;



	disable_irq(irq);

	ucc_geth_irq_handler(irq, dev);

	enable_irq(irq);

}

#endif /* CONFIG_NET_POLL_CONTROLLER */



/* Called when something needs to use the ethernet device */

/* Returns 0 for success. */

static int ucc_geth_open(struct net_device *dev)
@@ -4008,6 +4025,9 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma 
#ifdef CONFIG_UGETH_NAPI

	netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, UCC_GETH_DEV_WEIGHT);

#endif				/* CONFIG_UGETH_NAPI */

#ifdef CONFIG_NET_POLL_CONTROLLER

	dev->poll_controller = ucc_netpoll;

#endif

	dev->stop = ucc_geth_close;

//    dev->change_mtu = ucc_geth_change_mtu;

	dev->mtu = 1500;