diff options
| author | Stanislav Fomichev <stfomichev@gmail.com> | 2025-05-08 16:51:09 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-05-12 18:07:43 -0700 |
| commit | 2451d3fb388f29d87d1abd3d2952d5ce36109816 (patch) | |
| tree | afef4c0395f370c73e3c62cfa712e1c9964bef7d | |
| parent | 0b28182c73a3d013bcabbb890dc1070a8388f55a (diff) | |
net/mlx5: support software TX timestamp
Having a software timestamp (along with existing hardware one) is
useful to trace how the packets flow through the stack.
mlx5e_tx_skb_update_hwts_flags is called from tx paths
to setup HW timestamp; extend it to add software one as well.
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Signed-off-by: Stanislav Fomichev <stfomichev@gmail.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250508235109.585096-1-stfomichev@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 7 |
2 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c index fdf9e9bb99ac..e399d7a3d6cb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c @@ -1689,6 +1689,7 @@ int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv, return 0; info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_TX_SOFTWARE | SOF_TIMESTAMPING_RX_HARDWARE | SOF_TIMESTAMPING_RAW_HARDWARE; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index 4fd853d19e31..55a8629f0792 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -337,10 +337,11 @@ static void mlx5e_sq_calc_wqe_attr(struct sk_buff *skb, const struct mlx5e_tx_at }; } -static void mlx5e_tx_skb_update_hwts_flags(struct sk_buff *skb) +static void mlx5e_tx_skb_update_ts_flags(struct sk_buff *skb) { if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS; + skb_tx_timestamp(skb); } static void mlx5e_tx_check_stop(struct mlx5e_txqsq *sq) @@ -392,7 +393,7 @@ mlx5e_txwqe_complete(struct mlx5e_txqsq *sq, struct sk_buff *skb, cseg->opmod_idx_opcode = cpu_to_be32((sq->pc << 8) | attr->opcode); cseg->qpn_ds = cpu_to_be32((sq->sqn << 8) | wqe_attr->ds_cnt); - mlx5e_tx_skb_update_hwts_flags(skb); + mlx5e_tx_skb_update_ts_flags(skb); sq->pc += wi->num_wqebbs; @@ -625,7 +626,7 @@ mlx5e_sq_xmit_mpwqe(struct mlx5e_txqsq *sq, struct sk_buff *skb, mlx5e_dma_push(sq, txd.dma_addr, txd.len, MLX5E_DMA_MAP_SINGLE); mlx5e_skb_fifo_push(&sq->db.skb_fifo, skb); mlx5e_tx_mpwqe_add_dseg(sq, &txd); - mlx5e_tx_skb_update_hwts_flags(skb); + mlx5e_tx_skb_update_ts_flags(skb); if (unlikely(mlx5e_tx_mpwqe_is_full(&sq->mpwqe))) { /* Might stop the queue and affect the retval of __netdev_tx_sent_queue. */ |