From 075e85a1261e4653c2068e68a8c91da6c7bc4e60 Mon Sep 17 00:00:00 2001 From: Mark Bloch Date: Thu, 23 Oct 2025 12:16:59 +0300 Subject: [PATCH] net/mlx5: Refactor HCA cap 2 setting Refactor HCA capability 2 setting logic to be more structured and conditional. Move the sw_vhca_id_valid setting inside proper conditional checks and prepare the function for additional capability settings. The refactoring: - Always copy current capabilities to set_hca_cap buffer. - Apply sw_vhca_id_valid setting only when conditions are met. - Improve code readability and maintainability. This cleanup prepares the handle_hca_cap_2() function for the upcoming balance ID capability setting. Signed-off-by: Mark Bloch Reviewed-by: Moshe Shemesh Reviewed-by: Shay Drori Signed-off-by: Tariq Toukan Link: https://patch.msgid.link/1761211020-925651-5-git-send-email-tariqt@nvidia.com Signed-off-by: Paolo Abeni --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index 70c156591b0ba..563267acf386f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -553,6 +553,7 @@ EXPORT_SYMBOL(mlx5_is_roce_on); static int handle_hca_cap_2(struct mlx5_core_dev *dev, void *set_ctx) { + bool do_set = false; void *set_hca_cap; int err; @@ -563,17 +564,22 @@ static int handle_hca_cap_2(struct mlx5_core_dev *dev, void *set_ctx) if (err) return err; - if (!MLX5_CAP_GEN_2_MAX(dev, sw_vhca_id_valid) || - !(dev->priv.sw_vhca_id > 0)) - return 0; - set_hca_cap = MLX5_ADDR_OF(set_hca_cap_in, set_ctx, capability); memcpy(set_hca_cap, dev->caps.hca[MLX5_CAP_GENERAL_2]->cur, MLX5_ST_SZ_BYTES(cmd_hca_cap_2)); - MLX5_SET(cmd_hca_cap_2, set_hca_cap, sw_vhca_id_valid, 1); - return set_caps(dev, set_ctx, MLX5_CAP_GENERAL_2); + if (MLX5_CAP_GEN_2_MAX(dev, sw_vhca_id_valid) && + dev->priv.sw_vhca_id > 0) { + MLX5_SET(cmd_hca_cap_2, set_hca_cap, sw_vhca_id_valid, 1); + do_set = true; + } + + /* some FW versions that support querying MLX5_CAP_GENERAL_2 + * capabilities but don't support setting them. + * Skip unnecessary update to hca_cap_2 when no changes were introduced + */ + return do_set ? set_caps(dev, set_ctx, MLX5_CAP_GENERAL_2) : 0; } static int handle_hca_cap(struct mlx5_core_dev *dev, void *set_ctx) -- 2.47.3