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be2net: fix unnecessary access to hardware to get link, port info

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Every time while doing ethtool->get_settings we are accessing
the hardware to get link status and port information.
This is not necessary.  We now use the cached copy for this info
and update it when the link status changes.

From: Suresh R <sureshr@serverengines.com>

Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ajit Khaparde
2009-11-29 17:57:46 +00:00
committed by David S. Miller
parent b7b83ac39a
commit 0dffc83e5b
3 changed files with 38 additions and 21 deletions
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3
drivers/net/benet/be_main.c
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@@ -220,6 +220,7 @@ void be_link_status_update(struct be_adapter *adapter, bool link_up)
/* If link came up or went down */
if (adapter->link_up != link_up) {
adapter->link_speed = -1;
if (link_up) {
netif_start_queue(netdev);
netif_carrier_on(netdev);
@@ -1674,6 +1675,8 @@ static int be_setup(struct be_adapter *adapter)
if (status != 0)
goto rx_qs_destroy;
adapter->link_speed = -1;
return 0;
rx_qs_destroy: