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net/mlx5e: Add ethtool counter for TX xmit_more 

Add a counter in ethtool for the number of times that
TX xmit_more was used.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tariq Toukan 2016-08-29 01:13:47 +03:00 committed by David S. Miller
parent cc8e9ebf95
commit c8cf78fe10
3 changed files with 6 additions and 0 deletions
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1
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -155,6 +155,7 @@ static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
s->tx_queue_stopped += sq_stats->stopped;
s->tx_queue_wake += sq_stats->wake;
s->tx_queue_dropped += sq_stats->dropped;
s->tx_xmit_more += sq_stats->xmit_more;
s->tx_csum_partial_inner += sq_stats->csum_partial_inner;
tx_offload_none += sq_stats->csum_none;
}

4
drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
View File

@ -70,6 +70,7 @@ struct mlx5e_sw_stats {
u64 tx_queue_stopped;
u64 tx_queue_wake;
u64 tx_queue_dropped;
u64 tx_xmit_more;
u64 rx_wqe_err;
u64 rx_mpwqe_filler;
u64 rx_mpwqe_frag;
@ -101,6 +102,7 @@ static const struct counter_desc sw_stats_desc[] = {
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_queue_stopped) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_queue_wake) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_queue_dropped) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_xmit_more) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_wqe_err) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_mpwqe_filler) },
{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_mpwqe_frag) },
@ -298,6 +300,7 @@ struct mlx5e_sq_stats {
/* commonly accessed in data path */
u64 packets;
u64 bytes;
u64 xmit_more;
u64 tso_packets;
u64 tso_bytes;
u64 tso_inner_packets;
@ -324,6 +327,7 @@ static const struct counter_desc sq_stats_desc[] = {
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, stopped) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, wake) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, dropped) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, xmit_more) },
};
#define NUM_SW_COUNTERS ARRAY_SIZE(sw_stats_desc)

1
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
View File

@ -375,6 +375,7 @@ static netdev_tx_t mlx5e_sq_xmit(struct mlx5e_sq *sq, struct sk_buff *skb)
sq->stats.packets++;
sq->stats.bytes += num_bytes;
sq->stats.xmit_more += skb->xmit_more;
return NETDEV_TX_OK;
dma_unmap_wqe_err: