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| author | Maxim Mikityanskiy <maximmi@nvidia.com> | 2022-09-27 23:35:57 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-09-29 05:36:34 +0300 |
| commit | f060ccc2afaa099a6bb86e5ec89efbaea5dd2ecf (patch) | |
| tree | ebad5c866f7db40c55340d194dd651ea9b7fe671 /drivers | |
| parent | 40b72108f9c609c5043903efb70c52d46b8aa871 (diff) | |
| download | linux-f060ccc2afaa099a6bb86e5ec89efbaea5dd2ecf.tar.xz | |
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 648a178e8db8..05126c6ae13d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -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 * 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, - MLX5_CAP_GEN(mdev, max_wqe_sz_sq) / MLX5_SEND_WQE_BB); + BUILD_BUG_ON(MLX5_SEND_WQE_MAX_WQEBBS > U8_MAX); + + 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) |