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authorRajesh Borundia <rajesh.borundia@qlogic.com>2014-08-04 19:51:16 +0400
committerDavid S. Miller <davem@davemloft.net>2014-08-06 03:23:26 +0400
commita0eaf75c03712b491b7a840b5836c8f1e2a09277 (patch)
tree7a6429676a00dafdbd99da7f2abaf1f4f51ca8b3
parentf2294eb59d5c3efa51acb3f42a7a382e9353bdc7 (diff)
downloadlinux-a0eaf75c03712b491b7a840b5836c8f1e2a09277.tar.xz
qlcnic: Fix update of ethtool stats.
o Aggregating tx stats in adapter variable was resulting in an increase in stats even after no traffic was run and user runs ifconfig/ethtool command. o qlcnic_update_stats used to accumulate stats in adapter struct at each function call, instead accumulate tx stats in local variable and then assign it to adapter structure. Reported-by: Holger Kiehl <holger.kiehl@dwd.de> Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 1b7f3dbae289..141f116eb868 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -1290,17 +1290,25 @@ static u64 *qlcnic_fill_stats(u64 *data, void *stats, int type)
void qlcnic_update_stats(struct qlcnic_adapter *adapter)
{
+ struct qlcnic_tx_queue_stats tx_stats;
struct qlcnic_host_tx_ring *tx_ring;
int ring;
+ memset(&tx_stats, 0, sizeof(tx_stats));
for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
tx_ring = &adapter->tx_ring[ring];
- adapter->stats.xmit_on += tx_ring->tx_stats.xmit_on;
- adapter->stats.xmit_off += tx_ring->tx_stats.xmit_off;
- adapter->stats.xmitcalled += tx_ring->tx_stats.xmit_called;
- adapter->stats.xmitfinished += tx_ring->tx_stats.xmit_finished;
- adapter->stats.txbytes += tx_ring->tx_stats.tx_bytes;
+ tx_stats.xmit_on += tx_ring->tx_stats.xmit_on;
+ tx_stats.xmit_off += tx_ring->tx_stats.xmit_off;
+ tx_stats.xmit_called += tx_ring->tx_stats.xmit_called;
+ tx_stats.xmit_finished += tx_ring->tx_stats.xmit_finished;
+ tx_stats.tx_bytes += tx_ring->tx_stats.tx_bytes;
}
+
+ adapter->stats.xmit_on = tx_stats.xmit_on;
+ adapter->stats.xmit_off = tx_stats.xmit_off;
+ adapter->stats.xmitcalled = tx_stats.xmit_called;
+ adapter->stats.xmitfinished = tx_stats.xmit_finished;
+ adapter->stats.txbytes = tx_stats.tx_bytes;
}
static u64 *qlcnic_fill_tx_queue_stats(u64 *data, void *stats)