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mlx4: Implement memory windows allocation and deallocation

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Implement MW allocation and deallocation in mlx4_core and mlx4_ib.
Pass down the enable bind flag when registering memory regions.

Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Shani Michaeli
2013-02-06 16:19:14 +00:00
committed by Roland Dreier
parent e448834e35
commit 804d6a89a5
4 changed files with 178 additions and 1 deletions
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20
include/linux/mlx4/device.h
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@@ -170,6 +170,7 @@ enum {
#define MLX4_ATTR_EXTENDED_PORT_INFO cpu_to_be16(0xff90)
enum {
MLX4_BMME_FLAG_WIN_TYPE_2B = 1 << 1,
MLX4_BMME_FLAG_LOCAL_INV = 1 << 6,
MLX4_BMME_FLAG_REMOTE_INV = 1 << 7,
MLX4_BMME_FLAG_TYPE_2_WIN = 1 << 9,
@@ -237,7 +238,8 @@ enum {
MLX4_PERM_LOCAL_WRITE = 1 << 11,
MLX4_PERM_REMOTE_READ = 1 << 12,
MLX4_PERM_REMOTE_WRITE = 1 << 13,
MLX4_PERM_ATOMIC = 1 << 14
MLX4_PERM_ATOMIC = 1 << 14,
MLX4_PERM_BIND_MW = 1 << 15,
};
enum {
@@ -503,6 +505,18 @@ struct mlx4_mr {
int enabled;
};
enum mlx4_mw_type {
MLX4_MW_TYPE_1 = 1,
MLX4_MW_TYPE_2 = 2,
};
struct mlx4_mw {
u32 key;
u32 pd;
enum mlx4_mw_type type;
int enabled;
};
struct mlx4_fmr {
struct mlx4_mr mr;
struct mlx4_mpt_entry *mpt;
@@ -803,6 +817,10 @@ int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
int npages, int page_shift, struct mlx4_mr *mr);
int mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr);
int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr);
int mlx4_mw_alloc(struct mlx4_dev *dev, u32 pd, enum mlx4_mw_type type,
struct mlx4_mw *mw);
void mlx4_mw_free(struct mlx4_dev *dev, struct mlx4_mw *mw);
int mlx4_mw_enable(struct mlx4_dev *dev, struct mlx4_mw *mw);
int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
int start_index, int npages, u64 *page_list);
int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,