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[e1000] Ensure descriptor is fully written before sending packet

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Reported-by: Mark McLoughlin <markmc@redhat.com>
This commit is contained in:
Michael Brown
2009-06-23 18:36:01 +01:00
parent 58f60df66c
commit 5e1ef98469
1 changed files with 1 additions and 0 deletions
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src/drivers/net/e1000/e1000.c
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@@ -588,6 +588,7 @@ e1000_transmit ( struct net_device *netdev, struct io_buffer *iobuf )
/* Write new tail to NIC, making packet available for transmit /* Write new tail to NIC, making packet available for transmit
*/ */
wmb();
E1000_WRITE_REG ( hw, TDT, adapter->tx_tail ); E1000_WRITE_REG ( hw, TDT, adapter->tx_tail );
return 0; return 0;