forked from luck/tmp_suning_uos_patched
ucc_geth: returns NETDEV_TX_BUSY when BD ring is full
Returns NETDEV_TX_BUSY when BD ring is full. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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@ -3607,6 +3607,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
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if (bd == ugeth->confBd[txQ]) {
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if (!netif_queue_stopped(dev))
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netif_stop_queue(dev);
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return NETDEV_TX_BUSY;
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}
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ugeth->txBd[txQ] = bd;
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@ -3622,7 +3623,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
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spin_unlock_irq(&ugeth->lock);
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return 0;
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return NETDEV_TX_OK;
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}
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static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
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