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netxen: small xmit optimizations

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Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dhananjay Phadke
2009-03-09 08:50:53 +00:00
committed by David S. Miller
parent 0ddc110c6f
commit d32cc3d24e
3 changed files with 17 additions and 12 deletions
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2
drivers/net/netxen/netxen_nic_init.c
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@@ -955,6 +955,7 @@ int netxen_process_cmd_ring(struct netxen_adapter *adapter)
int done = 0;
last_consumer = adapter->last_cmd_consumer;
barrier(); /* cmd_consumer can change underneath */
consumer = le32_to_cpu(*(adapter->cmd_consumer));
while (last_consumer != consumer) {
@@ -1005,6 +1006,7 @@ int netxen_process_cmd_ring(struct netxen_adapter *adapter)
* There is still a possible race condition and the host could miss an
* interrupt. The card has to take care of this.
*/
barrier(); /* cmd_consumer can change underneath */
consumer = le32_to_cpu(*(adapter->cmd_consumer));
done = (last_consumer == consumer);