OpenSDV
/
original_kernel
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

net/mlx5e: Introduce timestamps statistic counter for Tx DMA layer 

Count number of transmitted packets that were hardware timestamped at the
device DMA layer.

Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Link: https://lore.kernel.org/r/20240403212931.128541-4-rrameshbabu@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Rahul Rameshbabu 2024-04-03 14:28:41 -07:00 committed by Jakub Kicinski
parent adda540180
commit cd429012f0
4 changed files with 12 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst
View File

@ -300,6 +300,11 @@ the software port.
in the beginning of the queue. This is a normal condition.
- Informative
* - `tx[i]_timestamps`
- Transmitted packets that were hardware timestamped at the device's DMA
layer.
- Informative
* - `tx[i]_added_vlan_packets`
- The number of packets sent where vlan tag insertion was offloaded to the
hardware.

2
drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
View File

@ -2066,6 +2066,7 @@ static const struct counter_desc sq_stats_desc[] = {
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, csum_partial_inner) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, added_vlan_packets) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, nop) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, timestamps) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, mpwqe_blks) },
{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, mpwqe_pkts) },
#ifdef CONFIG_MLX5_EN_TLS
@ -2218,6 +2219,7 @@ static const struct counter_desc qos_sq_stats_desc[] = {
{ MLX5E_DECLARE_QOS_TX_STAT(struct mlx5e_sq_stats, csum_partial_inner) },
{ MLX5E_DECLARE_QOS_TX_STAT(struct mlx5e_sq_stats, added_vlan_packets) },
{ MLX5E_DECLARE_QOS_TX_STAT(struct mlx5e_sq_stats, nop) },
{ MLX5E_DECLARE_QOS_TX_STAT(struct mlx5e_sq_stats, timestamps) },
{ MLX5E_DECLARE_QOS_TX_STAT(struct mlx5e_sq_stats, mpwqe_blks) },
{ MLX5E_DECLARE_QOS_TX_STAT(struct mlx5e_sq_stats, mpwqe_pkts) },
#ifdef CONFIG_MLX5_EN_TLS

1
drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
View File

@ -431,6 +431,7 @@ struct mlx5e_sq_stats {
u64 stopped;
u64 dropped;
u64 recover;
u64 timestamps;
/* dirtied @completion */
u64 cqes ____cacheline_aligned_in_smp;
u64 wake;

6
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
View File

@ -750,11 +750,13 @@ static void mlx5e_consume_skb(struct mlx5e_txqsq *sq, struct sk_buff *skb,
u64 ts = get_cqe_ts(cqe);
hwts.hwtstamp = mlx5e_cqe_ts_to_ns(sq->ptp_cyc2time, sq->clock, ts);
if (sq->ptpsq)
if (sq->ptpsq) {
mlx5e_skb_cb_hwtstamp_handler(skb, MLX5E_SKB_CB_CQE_HWTSTAMP,
hwts.hwtstamp, sq->ptpsq->cq_stats);
else
} else {
skb_tstamp_tx(skb, &hwts);
sq->stats->timestamps++;
}
}
napi_consume_skb(skb, napi_budget);