It appears that the 82544 does not need the TSO workaround needed on
other chips.  This seems to resolve excessive messages that appear to be
Tx Unit Hangs when a system is under heavy stress.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
---
 drivers/net/e1000/e1000_main.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 59579b1..af6846d 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c

@@ -3479,7 +3479,8 @@ e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
       }

       if (likely(tso)) {
-               tx_ring->last_tx_tso = 1;
+               if (likely(adapter->hw.mac_type != e1000_82544))
+                       tx_ring->last_tx_tso = 1;
               tx_flags |= E1000_TX_FLAGS_TSO;
       } else if (likely(e1000_tx_csum(adapter, tx_ring, skb)))
               tx_flags |= E1000_TX_FLAGS_CSUM;
--

1.5.2.1