[PATCH v4 net-next 13/15] net: aquantia: get total counters from DMA block

[Igor Russkikh]

From: Dmitry Bogdanov <dmitry.bogda...@aquantia.com>

aq_nic_update_ndev_stats pushes statistics to ndev->stats from
system interface. This is not always good because it counts packets/bytes
before any of rx filters (including mac filter).

Its better to report the packet/bytes statistics from DMA
counters which gives actual values of data transferred over pci.
System level stats is still available via ethtool.

Signed-off-by: Nikita Danilov <ndani...@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russk...@aquantia.com>
Signed-off-by: Dmitry Bogdanov <dmitry.bogda...@aquantia.com>
---
 drivers/net/ethernet/aquantia/atlantic/aq_nic.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c 
b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index 8018f483ae45..e82d25a91bc1 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -753,11 +753,12 @@ static void aq_nic_update_ndev_stats(struct aq_nic_s 
*self)
        struct net_device *ndev = self->ndev;
        struct aq_stats_s *stats = 
self->aq_hw_ops->hw_get_hw_stats(self->aq_hw);
 
-       ndev->stats.rx_packets = stats->uprc + stats->mprc + stats->bprc;
-       ndev->stats.rx_bytes = stats->ubrc + stats->mbrc + stats->bbrc;
+       ndev->stats.rx_packets = stats->dma_pkt_rc;
+       ndev->stats.rx_bytes = stats->dma_oct_rc;
        ndev->stats.rx_errors = stats->erpr;
-       ndev->stats.tx_packets = stats->uptc + stats->mptc + stats->bptc;
-       ndev->stats.tx_bytes = stats->ubtc + stats->mbtc + stats->bbtc;
+       ndev->stats.rx_dropped = stats->dpc;
+       ndev->stats.tx_packets = stats->dma_pkt_tc;
+       ndev->stats.tx_bytes = stats->dma_oct_tc;
        ndev->stats.tx_errors = stats->erpt;
        ndev->stats.multicast = stats->mprc;
 }
-- 
2.17.1