diff options
| author | Michael Guralnik <michaelgur@nvidia.com> | 2023-01-26 00:28:04 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-01-27 13:04:09 -0400 |
| commit | b9584517832858a0f78d6851d09b697a829514cd (patch) | |
| tree | edbd61efcb53909a45bb403674a286f5391148bd /drivers/infiniband/hw/mlx5/mlx5_ib.h | |
| parent | 18b1746bddf5e7f6b2618966596d9517172a5cd7 (diff) | |
RDMA/mlx5: Change the cache structure to an RB-tree
Currently, the cache structure is a static linear array. Therefore, his
size is limited to the number of entries in it and is not expandable. The
entries are dedicated to mkeys of size 2^x and no access_flags. Mkeys with
different properties are not cacheable.
In this patch, we change the cache structure to an RB-tree. This will
allow to extend the cache to support more entries with different mkey
properties.
Link: https://lore.kernel.org/r/20230125222807.6921-4-michaelgur@nvidia.com
Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mlx5_ib.h')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 8d985f792367..eec16db2d536 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -741,6 +741,8 @@ struct mlx5_cache_ent { u32 access_mode; unsigned int ndescs; + struct rb_node node; + u8 disabled:1; u8 fill_to_high_water:1; @@ -770,8 +772,9 @@ struct mlx5r_async_create_mkey { struct mlx5_mkey_cache { struct workqueue_struct *wq; - struct mlx5_cache_ent ent[MAX_MKEY_CACHE_ENTRIES]; - struct dentry *root; + struct rb_root rb_root; + struct mutex rb_lock; + struct dentry *fs_root; unsigned long last_add; }; @@ -1316,11 +1319,15 @@ void mlx5_ib_copy_pas(u64 *old, u64 *new, int step, int num); int mlx5_ib_get_cqe_size(struct ib_cq *ibcq); int mlx5_mkey_cache_init(struct mlx5_ib_dev *dev); int mlx5_mkey_cache_cleanup(struct mlx5_ib_dev *dev); +struct mlx5_cache_ent *mlx5r_cache_create_ent(struct mlx5_ib_dev *dev, + int order); struct mlx5_ib_mr *mlx5_mr_cache_alloc(struct mlx5_ib_dev *dev, struct mlx5_cache_ent *ent, int access_flags); +struct mlx5_ib_mr *mlx5_mr_cache_alloc_order(struct mlx5_ib_dev *dev, u32 order, + int access_flags); int mlx5_ib_check_mr_status(struct ib_mr *ibmr, u32 check_mask, struct ib_mr_status *mr_status); struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd, |