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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: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Anton Vorontsov 2008-02-01 16:22:54 +03:00 committed by David S. Miller
parent 80a9fad8e8
commit 26d29ea799
1 changed files with 20 additions and 0 deletions
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20
drivers/net/ucc_geth.c
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@ -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;