8139cp: reset BQL when ring tx ring cleared
authorstephen hemminger <stephen@networkplumber.org>
Mon, 20 May 2013 06:54:43 +0000 (06:54 +0000)
committerDavid S. Miller <davem@davemloft.net>
Mon, 20 May 2013 21:02:35 +0000 (14:02 -0700)
This patch cures transmit timeout's with DHCP observed
while running under KVM. When the transmit ring is cleaned out,
the Byte Queue Limit values need to be reset.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/realtek/8139cp.c

index 7d1fb9ad1296e5825da2d845129ef38b51728cd7..03523459c4061627d1fad51f751082298eec2147 100644 (file)
@@ -1136,6 +1136,7 @@ static void cp_clean_rings (struct cp_private *cp)
                        cp->dev->stats.tx_dropped++;
                }
        }
+       netdev_reset_queue(cp->dev);
 
        memset(cp->rx_ring, 0, sizeof(struct cp_desc) * CP_RX_RING_SIZE);
        memset(cp->tx_ring, 0, sizeof(struct cp_desc) * CP_TX_RING_SIZE);