According to Documentation/networking/driver.txt the ndo_start_xmit method
should not return NETDEV_TX_BUSY under normal circumstances.
Stop the transmit queue when tx_ring is full.
Signed-off-by: Ondrej Puzman <puz...@gmail.com>
---
.../net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 27ffe0e..6764e59 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -2157,6 +2157,10 @@ static int pch_gbe_xmit_frame(struct sk_buff *skb,
struct net_device *netdev)
/* CRC,ITAG no support */
pch_gbe_tx_queue(adapter, tx_ring, skb);
+
+ if (unlikely(!PCH_GBE_DESC_UNUSED(tx_ring)))
+ netif_stop_queue(netdev);
+
spin_unlock_irqrestore(&tx_ring->tx_lock, flags);
return NETDEV_TX_OK;
}
--
1.7.2.3
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