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igb: update stats before doing reset in igb_down

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It was seen with repeated interface up/down testing that there was a large
stray between the stats reported by the queues and the stats reported by the
HW.  It was found to be an issue in that hw stats were being reset without
first being recorded.  This change records the stats before wiping them from
the system via the reset.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2009-02-06 23:22:32 +00:00 committed by David S. Miller
parent 450c87c8d2
commit 04fe63583d
1 changed files with 4 additions and 0 deletions
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4
drivers/net/igb/igb_main.c
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@ -858,6 +858,10 @@ void igb_down(struct igb_adapter *adapter)
netdev->tx_queue_len = adapter->tx_queue_len;
netif_carrier_off(netdev);
/* record the stats before reset*/
igb_update_stats(adapter);
adapter->link_speed = 0;
adapter->link_duplex = 0;