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>
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 1b7f3db..141f116 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -1290,17 +1290,25 @@
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)