From 71fb4832d50b01f0af2d257360c239879ce93a8e Mon Sep 17 00:00:00 2001 From: Cosmin Ratiu Date: Tue, 16 Sep 2025 17:11:41 +0300 Subject: net/mlx5e: Use multiple TX doorbells First, allocate more doorbells in mlx5e_create_mdev_resources: - one doorbell remains 'global' and will be used by all non-channel associated SQs (e.g. ASO, HWS, PTP, ...). - allocate additional 'num_doorbells' doorbells. This defaults to minimum between 8 and max number of channels. mlx5e_channel_pick_doorbell() now spreads out channel SQs across available doorbells. Signed-off-by: Cosmin Ratiu Reviewed-by: Dragos Tatulea Signed-off-by: Tariq Toukan Reviewed-by: Simon Horman Signed-off-by: Jakub Kicinski --- include/linux/mlx5/driver.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux') diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 15c434fedff7..99b34e4809ae 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -658,6 +658,8 @@ struct mlx5e_resources { u32 pdn; struct mlx5_td td; u32 mkey; + struct mlx5_sq_bfreg *bfregs; + unsigned int num_bfregs; #define MLX5_MAX_NUM_TC 8 u32 tisn[MLX5_MAX_PORTS][MLX5_MAX_NUM_TC]; bool tisn_valid; @@ -801,6 +803,8 @@ struct mlx5_db { int index; }; +#define MLX5_DEFAULT_NUM_DOORBELLS 8 + enum { MLX5_COMP_EQ_SIZE = 1024, }; -- cgit v1.2.3