cns3xxx: ethernet - clean the tx ring only in the poll function, not in the xmit...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35952 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
index 7166288..9c3618f 100644 (file)
--- a/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
+++ b/target/linux/cns3xxx/files/drivers/net/ethernet/cavium/cns3xxx_eth.c
@@ -436,14 +436,20 @@ static void cns3xxx_adjust_link(struct net_device *dev)
               dev->name, port->speed, port->duplex ? "full" : "half");
 }
 
+static void eth_schedule_poll(struct sw *sw)
+{
+       if (unlikely(!napi_schedule_prep(&sw->napi)))
+               return;
+
+       disable_irq_nosync(IRQ_CNS3XXX_SW_R0RXC);
+       __napi_schedule(&sw->napi);
+}
+
 irqreturn_t eth_rx_irq(int irq, void *pdev)
 {
        struct net_device *dev = pdev;
        struct sw *sw = netdev_priv(dev);
-       if (likely(napi_schedule_prep(&sw->napi))) {
-               disable_irq_nosync(IRQ_CNS3XXX_SW_R0RXC);
-               __napi_schedule(&sw->napi);
-       }
+       eth_schedule_poll(sw);
        return (IRQ_HANDLED);
 }
 
@@ -767,9 +773,8 @@ static int eth_xmit(struct sk_buff *skb, struct net_device *dev)
        skb_walk_frags(skb, skb1)
                nr_desc++;
 
+       eth_schedule_poll(sw);
        spin_lock_bh(&tx_lock);
-
-       eth_complete_tx(sw);
        if ((tx_ring->num_used + nr_desc + 1) >= TX_DESCS) {
                spin_unlock_bh(&tx_lock);
                return NETDEV_TX_BUSY;