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mlx4_en: Move to SW counters for total bytes and packets 

The per ring counters are implemented in SW. Now moving to have the total
counters as the sum of all rings. This way the numbers will always be consistent
and we no longer depend on HW buffer size limitations for those counters
that can be insufficient in some cases.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yevgeny Petrilin 2009-04-20 04:34:38 +00:00 committed by David S. Miller
parent 45b4d66d69
commit b1b243afac
1 changed files with 13 additions and 32 deletions
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45
drivers/net/mlx4/en_port.c
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@ -151,6 +151,7 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
struct mlx4_cmd_mailbox *mailbox;
u64 in_mod = reset << 8 | port;
int err;
int i;
mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
if (IS_ERR(mailbox))
@ -165,38 +166,18 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
spin_lock_bh(&priv->stats_lock);
stats->rx_packets = be32_to_cpu(mlx4_en_stats->RTOTFRMS) -
be32_to_cpu(mlx4_en_stats->RDROP);
stats->tx_packets = be64_to_cpu(mlx4_en_stats->TTOT_prio_0) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_1) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_2) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_3) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_4) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_5) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_6) +
be64_to_cpu(mlx4_en_stats->TTOT_prio_7) +
be64_to_cpu(mlx4_en_stats->TTOT_novlan) +
be64_to_cpu(mlx4_en_stats->TTOT_loopbk);
stats->rx_bytes = be64_to_cpu(mlx4_en_stats->ROCT_prio_0) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_1) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_2) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_3) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_4) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_5) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_6) +
be64_to_cpu(mlx4_en_stats->ROCT_prio_7) +
be64_to_cpu(mlx4_en_stats->ROCT_novlan);
stats->tx_bytes = be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_0) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_1) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_2) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_3) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_4) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_5) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_6) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_prio_7) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_novlan) +
be64_to_cpu(mlx4_en_stats->TTTLOCT_loopbk);
stats->rx_packets = 0;
stats->rx_bytes = 0;
for (i = 0; i < priv->rx_ring_num; i++) {
stats->rx_packets += priv->rx_ring[i].packets;
stats->rx_bytes += priv->rx_ring[i].bytes;
}
stats->tx_packets = 0;
stats->tx_bytes = 0;
for (i = 0; i <= priv->tx_ring_num; i++) {
stats->tx_packets += priv->tx_ring[i].packets;
stats->tx_bytes += priv->tx_ring[i].bytes;
}
stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
be32_to_cpu(mlx4_en_stats->RdropLength) +