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| author | Rahul Rameshbabu <rrameshbabu@nvidia.com> | 2024-04-04 00:28:41 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-04-06 08:24:09 +0300 |
| commit | cd429012f078395c5bfa558e2e81e882b48023b0 (patch) | |
| tree | a3fb4a2774e94f12501739815cd18ba3d3acc568 | |
| parent | adda5401807882f5575364442cd583462fc40ae4 (diff) | |
| download | linux-cd429012f078395c5bfa558e2e81e882b48023b0.tar.xz | |
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>
4 files changed, 12 insertions, 2 deletions
diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst index 5464cd9e2694..fed821ef9b09 100644 --- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst +++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst @@ -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. diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c index 3004778e253e..aa1de8bf0841 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c @@ -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 diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h index ccc67a471f68..b0090ad133aa 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h @@ -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; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index 2fa076b23fbe..09a592909101 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -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); |