net: systemport: Add netconsole support

Implement a poll controller for netconsole which invokes the RX
interrupt handler to poll for incoming packets, and cleans up all TX
queues by invoking the TX interrupt handler.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 4566cdf..b9a5a97 100644 (file)
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -933,6 +933,21 @@ static irqreturn_t bcm_sysport_wol_isr(int irq, void *dev_id)
        return IRQ_HANDLED;
 }
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void bcm_sysport_poll_controller(struct net_device *dev)
+{
+       struct bcm_sysport_priv *priv = netdev_priv(dev);
+
+       disable_irq(priv->irq0);
+       bcm_sysport_rx_isr(priv->irq0, priv);
+       enable_irq(priv->irq0);
+
+       disable_irq(priv->irq1);
+       bcm_sysport_tx_isr(priv->irq1, priv);
+       enable_irq(priv->irq1);
+}
+#endif
+
 static struct sk_buff *bcm_sysport_insert_tsb(struct sk_buff *skb,
                                              struct net_device *dev)
 {
@@ -1723,6 +1738,9 @@ static const struct net_device_ops bcm_sysport_netdev_ops = {
        .ndo_set_features       = bcm_sysport_set_features,
        .ndo_set_rx_mode        = bcm_sysport_set_rx_mode,
        .ndo_set_mac_address    = bcm_sysport_change_mac,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+       .ndo_poll_controller    = bcm_sysport_poll_controller,
+#endif
 };
 
 #define REV_FMT        "v%2x.%02x"