From: Hauke Mehrtens hauke@hauke-m.de
[ Upstream commit dea36631e6f186d4b853af67a4aef2e35cfa8bb7 ]
The call to netif_wake_queue() when the TX descriptors were freed was missing. When there are no TX buffers available the TX queue will be stopped, but it was not started again when they are available again, this is fixed in this patch.
Fixes: fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver") Signed-off-by: Hauke Mehrtens hauke@hauke-m.de Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/lantiq_xrx200.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/drivers/net/ethernet/lantiq_xrx200.c +++ b/drivers/net/ethernet/lantiq_xrx200.c @@ -268,6 +268,9 @@ static int xrx200_tx_housekeeping(struct net_dev->stats.tx_bytes += bytes; netdev_completed_queue(ch->priv->net_dev, pkts, bytes);
+ if (netif_queue_stopped(net_dev)) + netif_wake_queue(net_dev); + if (pkts < budget) { napi_complete(&ch->napi); ltq_dma_enable_irq(&ch->dma);