diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethoc.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c index db444a73e4b..a12a07ea02b 100644 --- a/drivers/net/ethoc.c +++ b/drivers/net/ethoc.c @@ -414,8 +414,19 @@ static int ethoc_rx(struct net_device *dev, int limit) entry = priv->num_tx + (priv->cur_rx % priv->num_rx); ethoc_read_bd(priv, entry, &bd); - if (bd.stat & RX_BD_EMPTY) - break; + if (bd.stat & RX_BD_EMPTY) { + ethoc_ack_irq(priv, INT_MASK_RX); + /* If packet (interrupt) came in between checking + * BD_EMTPY and clearing the interrupt source, then we + * risk missing the packet as the RX interrupt won't + * trigger right away when we reenable it; hence, check + * BD_EMTPY here again to make sure there isn't such a + * packet waiting for us... + */ + ethoc_read_bd(priv, entry, &bd); + if (bd.stat & RX_BD_EMPTY) + break; + } if (ethoc_update_rx_stats(priv, &bd) == 0) { int size = bd.stat >> 16; |