netdev - [PATCH net-next V2 11/14] net/mlx5e: SHAMPO, Add header-only ethtool counters for header data split

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Date: Tue, 4 Jun 2024 00:22:16 +0300
From: Tariq Toukan <tariqt@...dia.com>
To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>
CC: <netdev@...r.kernel.org>, Saeed Mahameed <saeedm@...dia.com>, Gal Pressman
	<gal@...dia.com>, Leon Romanovsky <leonro@...dia.com>, Tariq Toukan
	<tariqt@...dia.com>, Dragos Tatulea <dtatulea@...dia.com>
Subject: [PATCH net-next V2 11/14] net/mlx5e: SHAMPO, Add header-only ethtool counters for header data split

Count the number of header-only packets and bytes from SHAMPO.

Signed-off-by: Dragos Tatulea <dtatulea@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
---
 .../device_drivers/ethernet/mellanox/mlx5/counters.rst   | 9 +++++++++
 drivers/net/ethernet/mellanox/mlx5/core/en_rx.c          | 3 +++
 drivers/net/ethernet/mellanox/mlx5/core/en_stats.c       | 4 ++++
 drivers/net/ethernet/mellanox/mlx5/core/en_stats.h       | 4 ++++
 4 files changed, 20 insertions(+)

diff --git a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst
index 18638a8e7c73..3bd72577af9a 100644
--- a/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst
+++ b/Documentation/networking/device_drivers/ethernet/mellanox/mlx5/counters.rst
@@ -209,6 +209,15 @@ the software port.
        headers that require additional memory to be allocated.
      - Informative
 
+   * - `rx[i]_hds_nodata_packets`
+     - Number of header only packets in header/data split mode [#accel]_.
+     - Informative
+
+   * - `rx[i]_hds_nodata_bytes`
+     - Number of bytes for header only packets in header/data split mode
+       [#accel]_.
+     - Informative
+
    * - `rx[i]_lro_packets`
      - The number of LRO packets received on ring i [#accel]_.
      - Acceleration
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index 7ab7215843b6..3af4f70de334 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -2331,6 +2331,9 @@ static void mlx5e_handle_rx_cqe_mpwrq_shampo(struct mlx5e_rq *rq, struct mlx5_cq
 
 			frag_page = &wi->alloc_units.frag_pages[page_idx];
 			mlx5e_shampo_fill_skb_data(*skb, rq, frag_page, data_bcnt, data_offset);
+		} else {
+			stats->hds_nodata_packets++;
+			stats->hds_nodata_bytes += head_size;
 		}
 	}
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
index a3c79da1525b..db1cac68292f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c
@@ -343,6 +343,8 @@ static void mlx5e_stats_grp_sw_update_stats_rq_stats(struct mlx5e_sw_stats *s,
 	s->rx_gro_bytes               += rq_stats->gro_bytes;
 	s->rx_gro_skbs                += rq_stats->gro_skbs;
 	s->rx_gro_large_hds           += rq_stats->gro_large_hds;
+	s->rx_hds_nodata_packets      += rq_stats->hds_nodata_packets;
+	s->rx_hds_nodata_bytes        += rq_stats->hds_nodata_bytes;
 	s->rx_ecn_mark                += rq_stats->ecn_mark;
 	s->rx_removed_vlan_packets    += rq_stats->removed_vlan_packets;
 	s->rx_csum_none               += rq_stats->csum_none;
@@ -2056,6 +2058,8 @@ static const struct counter_desc rq_stats_desc[] = {
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, gro_bytes) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, gro_skbs) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, gro_large_hds) },
+	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, hds_nodata_packets) },
+	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, hds_nodata_bytes) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, ecn_mark) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, removed_vlan_packets) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, wqe_err) },
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index 25daae526caa..4c5858c1dd82 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -154,6 +154,8 @@ struct mlx5e_sw_stats {
 	u64 rx_gro_bytes;
 	u64 rx_gro_skbs;
 	u64 rx_gro_large_hds;
+	u64 rx_hds_nodata_packets;
+	u64 rx_hds_nodata_bytes;
 	u64 rx_mcast_packets;
 	u64 rx_ecn_mark;
 	u64 rx_removed_vlan_packets;
@@ -352,6 +354,8 @@ struct mlx5e_rq_stats {
 	u64 gro_bytes;
 	u64 gro_skbs;
 	u64 gro_large_hds;
+	u64 hds_nodata_packets;
+	u64 hds_nodata_bytes;
 	u64 mcast_packets;
 	u64 ecn_mark;
 	u64 removed_vlan_packets;
-- 
2.44.0