net/mlx4_en: Use HW counters for rx/tx bytes/packets in PF device

Under SRIOV, the port rx/tx bytes/packets statistics should by read
from the HW instead of using the PF netdevice SW accounting. This is
needed in order to get the full port statistics and not just the PF
own ones

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_port.c b/drivers/net/ethernet/mellanox/mlx4/en_port.c
index 73f6277d9ac1..ee99e67187f5 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_port.c
@@ -203,6 +203,20 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
                 priv->port_stats.tso_packets       += ring->tso_packets;
                 priv->port_stats.xmit_more         += ring->xmit_more;
         }
+        if (mlx4_is_master(mdev->dev)) {
+                stats->rx_packets = en_stats_adder(&mlx4_en_stats->RTOT_prio_0,
+                                                   &mlx4_en_stats->RTOT_prio_1,
+                                                   NUM_PRIORITIES);
+                stats->tx_packets = en_stats_adder(&mlx4_en_stats->TTOT_prio_0,
+                                                   &mlx4_en_stats->TTOT_prio_1,
+                                                   NUM_PRIORITIES);
+                stats->rx_bytes = en_stats_adder(&mlx4_en_stats->ROCT_prio_0,
+                                                 &mlx4_en_stats->ROCT_prio_1,
+                                                 NUM_PRIORITIES);
+                stats->tx_bytes = en_stats_adder(&mlx4_en_stats->TOCT_prio_0,
+                                                 &mlx4_en_stats->TOCT_prio_1,
+                                                 NUM_PRIORITIES);
+        }
 
         /* net device stats */
         stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +