macb: Add support of the netpoll API
With this patch in place, I'm successfully able to use the netconsole mechanism with the Calao USB-A9263 board, which uses the AT91SAM9263 CPU, which in terms of Ethernet controller is supported by the macb driver. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> [haavard.skinnemoen@atmel.com: disable_irq() -> local_irq_save()] [haavard.skinnemoen@atmel.com: convert to net_device_ops] Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -599,6 +599,21 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
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return IRQ_HANDLED;
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return IRQ_HANDLED;
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}
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}
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#ifdef CONFIG_NET_POLL_CONTROLLER
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/*
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* Polling receive - used by netconsole and other diagnostic tools
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* to allow network i/o with interrupts disabled.
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*/
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static void macb_poll_controller(struct net_device *dev)
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{
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unsigned long flags;
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local_irq_save(flags);
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macb_interrupt(dev->irq, dev);
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local_irq_restore(flags);
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}
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#endif
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static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
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static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
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{
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{
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struct macb *bp = netdev_priv(dev);
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struct macb *bp = netdev_priv(dev);
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@ -1094,6 +1109,9 @@ static const struct net_device_ops macb_netdev_ops = {
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.ndo_validate_addr = eth_validate_addr,
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.ndo_validate_addr = eth_validate_addr,
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.ndo_change_mtu = eth_change_mtu,
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.ndo_change_mtu = eth_change_mtu,
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.ndo_set_mac_address = eth_mac_addr,
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.ndo_set_mac_address = eth_mac_addr,
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#ifdef CONFIG_NET_POLL_CONTROLLER
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.ndo_poll_controller = macb_poll_controller,
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#endif
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};
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};
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static int __init macb_probe(struct platform_device *pdev)
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static int __init macb_probe(struct platform_device *pdev)
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