diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-10-02 08:24:21 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-04 20:04:14 -0400 |
| commit | 9fab426de78140dc5cb0b85bbee6042c9c3d5ca5 (patch) | |
| tree | 191460414031ac67841797f90acece7b79b3d6bb /drivers/net/ethernet/mellanox/mlx4/en_port.c | |
| parent | 6106253e69413785b29b9bfb493e2544c70461e7 (diff) | |
| download | linux-9fab426de78140dc5cb0b85bbee6042c9c3d5ca5.tar.bz2 | |
mlx4: add a new xmit_more counter
ethtool -S reports a new counter, tracking number of time doorbell
was not triggered, because skb->xmit_more was set.
$ ethtool -S eth0 | egrep "tx_packet|xmit_more"
tx_packets: 2413288400
xmit_more: 666121277
I merged the tso_packet false sharing avoidance in this patch as well.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_port.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_port.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_port.c b/drivers/net/ethernet/mellanox/mlx4/en_port.c index c2cfb05e7290..0a0261d128b9 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_port.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_port.c @@ -150,14 +150,19 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset) priv->port_stats.tx_chksum_offload = 0; priv->port_stats.queue_stopped = 0; priv->port_stats.wake_queue = 0; + priv->port_stats.tso_packets = 0; + priv->port_stats.xmit_more = 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; - priv->port_stats.tx_chksum_offload += priv->tx_ring[i]->tx_csum; - priv->port_stats.queue_stopped += - priv->tx_ring[i]->queue_stopped; - priv->port_stats.wake_queue += priv->tx_ring[i]->wake_queue; + const struct mlx4_en_tx_ring *ring = priv->tx_ring[i]; + + stats->tx_packets += ring->packets; + stats->tx_bytes += ring->bytes; + priv->port_stats.tx_chksum_offload += ring->tx_csum; + priv->port_stats.queue_stopped += ring->queue_stopped; + priv->port_stats.wake_queue += ring->wake_queue; + priv->port_stats.tso_packets += ring->tso_packets; + priv->port_stats.xmit_more += ring->xmit_more; } stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) + |