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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>
This commit is contained in:
Eran Ben Elisha 2015-06-23 17:14:13 +03:00 committed by David S. Miller
parent 9a2abf5a80
commit f1a3badb0b
1 changed files with 14 additions and 0 deletions
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14
drivers/net/ethernet/mellanox/mlx4/en_port.c
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@ -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) +