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Message-ID: <4AF39314.5020004@mellanox.co.il> Date: Fri, 06 Nov 2009 05:08:04 +0200 From: Yevgeny Petrilin <yevgenyp@...lanox.co.il> To: rdreier@...co.com CC: linux-rdma@...r.kernel.org, netdev@...r.kernel.org, liranl@...lanox.co.il, tziporet@...lanox.co.il, yevgenyp@...lanox.co.il Subject: [PATCH 02/25 v2] mlx4_core: add support for arbitrary bitmap sizes From: Liran Liss <liranl@...lanox.co.il> Signed-off-by: Liran Liss <liranl@...lanox.co.il> Signed-off-by: Yevgeny Petrilin <yevgenyp@...lanox.co.il> --- drivers/net/mlx4/alloc.c | 10 ++++++++++ drivers/net/mlx4/mlx4.h | 2 ++ 2 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c index ad95d5f..bc68cc3 100644 --- a/drivers/net/mlx4/alloc.c +++ b/drivers/net/mlx4/alloc.c @@ -177,6 +177,16 @@ int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, return 0; } +/* Like bitmap_init, but doesn't require 'num' to be a power of 2 or + * a non-trivial mask */ +int mlx4_bitmap_init_no_mask(struct mlx4_bitmap *bitmap, u32 num, + u32 reserved_bot, u32 reserved_top) +{ + u32 num_rounded = roundup_pow_of_two(num); + return mlx4_bitmap_init(bitmap, num_rounded, num_rounded - 1, + reserved_bot, num_rounded - num + reserved_top); +} + void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap) { kfree(bitmap->table); diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index bc72d6e..5836c94 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -330,6 +330,8 @@ 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_bot, u32 resetrved_top); +int mlx4_bitmap_init_no_mask(struct mlx4_bitmap *bitmap, u32 num, + u32 reserved_bot, u32 reserved_top); void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap); int mlx4_reset(struct mlx4_dev *dev); -- 1.5.3.7 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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