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RDMA/mlx5: Remove implicit ODP cache entry 

Implicit ODP mkey doesn't have unique properties. It shares the same
properties as the order 18 cache entry. There is no need to devote a
special entry for that.

Link: https://lore.kernel.org/r/20230125222807.6921-3-michaelgur@nvidia.com
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Aharon Landau 2023-01-26 00:28:03 +02:00 committed by Jason Gunthorpe
parent a2a88b8e22
commit 18b1746bdd
2 changed files with 5 additions and 16 deletions
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20
drivers/infiniband/hw/mlx5/odp.c
View File

@ -405,6 +405,7 @@ static void mlx5_ib_page_fault_resume(struct mlx5_ib_dev *dev,
static struct mlx5_ib_mr *implicit_get_child_mr(struct mlx5_ib_mr *imr,
unsigned long idx)
{
int order = order_base_2(MLX5_IMR_MTT_ENTRIES);
struct mlx5_ib_dev *dev = mr_to_mdev(imr);
struct ib_umem_odp *odp;
struct mlx5_ib_mr *mr;
@ -417,7 +418,8 @@ static struct mlx5_ib_mr *implicit_get_child_mr(struct mlx5_ib_mr *imr,
if (IS_ERR(odp))
return ERR_CAST(odp);
mr = mlx5_mr_cache_alloc(dev, &dev->cache.ent[MLX5_IMR_MTT_CACHE_ENTRY],
BUILD_BUG_ON(order > MKEY_CACHE_LAST_STD_ENTRY);
mr = mlx5_mr_cache_alloc(dev, &dev->cache.ent[order],
imr->access_flags);
if (IS_ERR(mr)) {
ib_umem_odp_release(odp);
@ -1591,20 +1593,8 @@ void mlx5_odp_init_mkey_cache_entry(struct mlx5_cache_ent *ent)
{
if (!(ent->dev->odp_caps.general_caps & IB_ODP_SUPPORT_IMPLICIT))
return;
switch (ent->order - 2) {
case MLX5_IMR_MTT_CACHE_ENTRY:
ent->ndescs = MLX5_IMR_MTT_ENTRIES;
ent->access_mode = MLX5_MKC_ACCESS_MODE_MTT;
ent->limit = 0;
break;
case MLX5_IMR_KSM_CACHE_ENTRY:
ent->ndescs = mlx5_imr_ksm_entries;
ent->access_mode = MLX5_MKC_ACCESS_MODE_KSM;
ent->limit = 0;
break;
}
ent->ndescs = mlx5_imr_ksm_entries;
ent->access_mode = MLX5_MKC_ACCESS_MODE_KSM;
}
static const struct ib_device_ops mlx5_ib_dev_odp_ops = {

1
include/linux/mlx5/driver.h
View File

@ -734,7 +734,6 @@ enum {
enum {
MKEY_CACHE_LAST_STD_ENTRY = 20,
MLX5_IMR_MTT_CACHE_ENTRY,
MLX5_IMR_KSM_CACHE_ENTRY,
MAX_MKEY_CACHE_ENTRIES
};