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mlx4_core: Add QP range reservation support

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To allow allocating an aligned range of consecutive QP numbers, add an
interface to reserve an aligned range of QP numbers and have the QP
allocation function always take a QP number.

This will be used for RSS support in the mlx4_en Ethernet driver and
also potentially by IPoIB RSS support.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Yevgeny Petrilin
2008-10-10 12:01:37 -07:00
committed by Roland Dreier
parent f6bccf6954
commit a3cdcbfa8f
5 changed files with 129 additions and 18 deletions
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2
drivers/net/mlx4/mlx4.h
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@@ -288,6 +288,8 @@ static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, u32 reserved);
void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);