diff options
| -rw-r--r-- | drivers/net/gianfar.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index a06d8d1aace..6bf18c82083 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -133,6 +133,9 @@ static void gfar_set_hash_for_addr(struct net_device *dev, u8 *addr); #ifdef CONFIG_GFAR_NAPI static int gfar_poll(struct net_device *dev, int *budget); #endif +#ifdef CONFIG_NET_POLL_CONTROLLER +static void gfar_netpoll(struct net_device *dev); +#endif int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit); static int gfar_process_frame(struct net_device *dev, struct sk_buff *skb, int length); static void gfar_vlan_rx_register(struct net_device *netdev, @@ -260,6 +263,9 @@ static int gfar_probe(struct platform_device *pdev) dev->poll = gfar_poll; dev->weight = GFAR_DEV_WEIGHT; #endif +#ifdef CONFIG_NET_POLL_CONTROLLER + dev->poll_controller = gfar_netpoll; +#endif dev->stop = gfar_close; dev->get_stats = gfar_get_stats; dev->change_mtu = gfar_change_mtu; @@ -1536,6 +1542,33 @@ static int gfar_poll(struct net_device *dev, int *budget) } #endif +#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 gfar_netpoll(struct net_device *dev) +{ + struct gfar_private *priv = netdev_priv(dev); + + /* If the device has multiple interrupts, run tx/rx */ + if (priv->einfo->device_flags & FSL_GIANFAR_DEV_HAS_MULTI_INTR) { + disable_irq(priv->interruptTransmit); + disable_irq(priv->interruptReceive); + disable_irq(priv->interruptError); + gfar_interrupt(priv->interruptTransmit, dev); + enable_irq(priv->interruptError); + enable_irq(priv->interruptReceive); + enable_irq(priv->interruptTransmit); + } else { + disable_irq(priv->interruptTransmit); + gfar_interrupt(priv->interruptTransmit, dev); + enable_irq(priv->interruptTransmit); + } +} +#endif + /* The interrupt handler for devices with one interrupt */ static irqreturn_t gfar_interrupt(int irq, void *dev_id) { |