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mlx4_core: Add helper functions to support MR re-registration

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Add few helper functions to support a mechanism of getting an MPT,
modifying it and updating the HCA with the modified object.

The code takes 2 paths, one for directly changing the MPT (and
sometimes its related MTTs) and another one which queries the MPT and
updates the HCA via fw command SW2HW_MPT. The first path is used in
native mode; the second path is slower and is used only in SRIOV.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Matan Barak
2014-07-31 11:01:29 +03:00
committed by Roland Dreier
parent 7e6edb9b2e
commit e630664c83
4 changed files with 202 additions and 2 deletions
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16
include/linux/mlx4/device.h
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@@ -262,6 +262,7 @@ enum {
MLX4_PERM_REMOTE_WRITE = 1 << 13,
MLX4_PERM_ATOMIC = 1 << 14,
MLX4_PERM_BIND_MW = 1 << 15,
MLX4_PERM_MASK = 0xFC00
};
enum {
@@ -1243,4 +1244,19 @@ int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port);
int mlx4_vf_get_enable_smi_admin(struct mlx4_dev *dev, int slave, int port);
int mlx4_vf_set_enable_smi_admin(struct mlx4_dev *dev, int slave, int port,
int enable);
int mlx4_mr_hw_get_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr,
struct mlx4_mpt_entry ***mpt_entry);
int mlx4_mr_hw_write_mpt(struct mlx4_dev *dev, struct mlx4_mr *mmr,
struct mlx4_mpt_entry **mpt_entry);
int mlx4_mr_hw_change_pd(struct mlx4_dev *dev, struct mlx4_mpt_entry *mpt_entry,
u32 pdn);
int mlx4_mr_hw_change_access(struct mlx4_dev *dev,
struct mlx4_mpt_entry *mpt_entry,
u32 access);
void mlx4_mr_hw_put_mpt(struct mlx4_dev *dev,
struct mlx4_mpt_entry **mpt_entry);
void mlx4_mr_rereg_mem_cleanup(struct mlx4_dev *dev, struct mlx4_mr *mr);
int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr,
u64 iova, u64 size, int npages,
int page_shift, struct mlx4_mpt_entry *mpt_entry);
#endif /* MLX4_DEVICE_H */