Commit cd429012 authored by Rahul Rameshbabu's avatar Rahul Rameshbabu Committed by Jakub Kicinski
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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: default avatarRahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: default avatarDragos Tatulea <dtatulea@nvidia.com>
Link: https://lore.kernel.org/r/20240403212931.128541-4-rrameshbabu@nvidia.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent adda5401

Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst

+5 −0
Original line number Diff line number Diff line
@@ -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.

drivers/net/ethernet/mellanox/mlx5/core/en_stats.c

+2 −0
Original line number Diff line number Diff line
@@ -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

drivers/net/ethernet/mellanox/mlx5/core/en_stats.h

+1 −0
Original line number Diff line number Diff line
@@ -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;

drivers/net/ethernet/mellanox/mlx5/core/en_tx.c

+4 −2
Original line number Diff line number Diff line
@@ -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);