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net/mlx5e: Convert mlx5e_get_max_sq_wqebbs to u8 

The return value of mlx5e_get_max_sq_wqebbs is clamped down to
MLX5_SEND_WQE_MAX_WQEBBS = 16, which fits into u8. This commit changes
the return type of this function to u8 for stricter type safety.

Signed-off-by: Maxim Mikityanskiy <maximmi@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Maxim Mikityanskiy 2022-09-27 13:35:57 -07:00 committed by Jakub Kicinski
parent 40b72108f9
commit f060ccc2af
1 changed files with 5 additions and 3 deletions
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8
drivers/net/ethernet/mellanox/mlx5/core/en.h
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@ -227,10 +227,12 @@ static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev)
* bytes units. Driver hardens the limitation to 1KB (16 * bytes units. Driver hardens the limitation to 1KB (16
* WQEBBs), unless firmware capability is stricter. * WQEBBs), unless firmware capability is stricter.
*/ */
static inline u16 mlx5e_get_max_sq_wqebbs(struct mlx5_core_dev *mdev) static inline u8 mlx5e_get_max_sq_wqebbs(struct mlx5_core_dev *mdev)
{ {
return min_t(u16, MLX5_SEND_WQE_MAX_WQEBBS, BUILD_BUG_ON(MLX5_SEND_WQE_MAX_WQEBBS > U8_MAX);
MLX5_CAP_GEN(mdev, max_wqe_sz_sq) / MLX5_SEND_WQE_BB);
return (u8)min_t(u16, MLX5_SEND_WQE_MAX_WQEBBS,
MLX5_CAP_GEN(mdev, max_wqe_sz_sq) / MLX5_SEND_WQE_BB);
} }
static inline u8 mlx5e_get_sw_max_sq_mpw_wqebbs(u8 max_sq_wqebbs) static inline u8 mlx5e_get_sw_max_sq_mpw_wqebbs(u8 max_sq_wqebbs)