linux-kernel - [PATCH net-next V2 5/6] net/mlx5e: SHAMPO, Remove mlx5e_shampo_get_log_hd_entry

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Message-ID: <1752675472-201445-6-git-send-email-tariqt@nvidia.com>
Date: Wed, 16 Jul 2025 17:17:51 +0300
From: Tariq Toukan <tariqt@...dia.com>
To: Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>, Andrew Lunn <andrew+netdev@...n.ch>, "David
 S. Miller" <davem@...emloft.net>
CC: Saeed Mahameed <saeed@...nel.org>, Gal Pressman <gal@...dia.com>, "Leon
 Romanovsky" <leon@...nel.org>, Saeed Mahameed <saeedm@...dia.com>, "Tariq
 Toukan" <tariqt@...dia.com>, Mark Bloch <mbloch@...dia.com>,
	<netdev@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Lama Kayal <lkayal@...dia.com>
Subject: [PATCH net-next V2 5/6] net/mlx5e: SHAMPO, Remove mlx5e_shampo_get_log_hd_entry_size()

From: Lama Kayal <lkayal@...dia.com>

Refactor mlx5e_shampo_get_log_hd_entry_size() as macro, for more
simplicity.

Signed-off-by: Lama Kayal <lkayal@...dia.com>
Reviewed-by: Dragos Tatulea <dtatulea@...dia.com>
Signed-off-by: Tariq Toukan <tariqt@...dia.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en.h        | 2 +-
 drivers/net/ethernet/mellanox/mlx5/core/en/params.c | 9 ++-------
 drivers/net/ethernet/mellanox/mlx5/core/en/params.h | 2 --
 3 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index 019bc6ca4455..22098c852570 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -84,7 +84,7 @@ struct page_pool;
 #define MLX5E_SHAMPO_LOG_MAX_HEADER_ENTRY_SIZE (9)
 #define MLX5E_SHAMPO_WQ_HEADER_PER_PAGE (PAGE_SIZE >> MLX5E_SHAMPO_LOG_MAX_HEADER_ENTRY_SIZE)
 #define MLX5E_SHAMPO_LOG_WQ_HEADER_PER_PAGE (PAGE_SHIFT - MLX5E_SHAMPO_LOG_MAX_HEADER_ENTRY_SIZE)
-#define MLX5E_SHAMPO_WQ_BASE_HEAD_ENTRY_SIZE (64)
+#define MLX5E_SHAMPO_WQ_BASE_HEAD_ENTRY_SIZE_SHIFT (6)
 #define MLX5E_SHAMPO_WQ_RESRV_SIZE_BASE_SHIFT (12)
 #define MLX5E_SHAMPO_WQ_LOG_RESRV_SIZE (16)
 #define MLX5E_SHAMPO_WQ_RESRV_SIZE BIT(MLX5E_SHAMPO_WQ_LOG_RESRV_SIZE)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
index b98973fe2f03..300acea7f3ca 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.c
@@ -414,12 +414,6 @@ u8 mlx5e_mpwqe_get_log_rq_size(struct mlx5_core_dev *mdev,
 	return params->log_rq_mtu_frames - log_pkts_per_wqe;
 }
 
-u8 mlx5e_shampo_get_log_hd_entry_size(struct mlx5_core_dev *mdev,
-				      struct mlx5e_params *params)
-{
-	return order_base_2(DIV_ROUND_UP(MLX5E_RX_MAX_HEAD, MLX5E_SHAMPO_WQ_BASE_HEAD_ENTRY_SIZE));
-}
-
 static u8 mlx5e_shampo_get_log_pkt_per_rsrv(struct mlx5e_params *params)
 {
 	return order_base_2(DIV_ROUND_UP(MLX5E_SHAMPO_WQ_RESRV_SIZE,
@@ -928,7 +922,8 @@ int mlx5e_build_rq_param(struct mlx5_core_dev *mdev,
 			 log_max_num_of_packets_per_reservation,
 			 mlx5e_shampo_get_log_pkt_per_rsrv(params));
 		MLX5_SET(wq, wq, log_headers_entry_size,
-			 mlx5e_shampo_get_log_hd_entry_size(mdev, params));
+			 MLX5E_SHAMPO_LOG_HEADER_ENTRY_SIZE -
+			 MLX5E_SHAMPO_WQ_BASE_HEAD_ENTRY_SIZE_SHIFT);
 		lro_timeout =
 			mlx5e_choose_lro_timeout(mdev,
 						 MLX5E_DEFAULT_SHAMPO_TIMEOUT);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/params.h b/drivers/net/ethernet/mellanox/mlx5/core/en/params.h
index 919895f64dcd..488ccdbc1e2c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/params.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/params.h
@@ -95,8 +95,6 @@ bool mlx5e_rx_mpwqe_is_linear_skb(struct mlx5_core_dev *mdev,
 u8 mlx5e_mpwqe_get_log_rq_size(struct mlx5_core_dev *mdev,
 			       struct mlx5e_params *params,
 			       struct mlx5e_xsk_param *xsk);
-u8 mlx5e_shampo_get_log_hd_entry_size(struct mlx5_core_dev *mdev,
-				      struct mlx5e_params *params);
 u32 mlx5e_shampo_hd_per_wqe(struct mlx5_core_dev *mdev,
 			    struct mlx5e_params *params,
 			    struct mlx5e_rq_param *rq_param);
-- 
2.31.1