[PATCH v2 rdma-next 1/6] RDMA/mlx5: Don't keep umrable 'page_shift' in cache entries

[Michael Guralnik <michaelgur@nvidia.com>]

From: Aharon Landau <aharonl@nvidia.com>

mkc.log_page_size can be changed using UMR. Therefore, don't treat it as
a cache entry property.
Removing it from struct mlx5_cache_ent.
All cache mkeys will be created with default PAGE_SHIFT, and updated
with the needed page_shift using UMR when passing them to a user.

Signed-off-by: Aharon Landau <aharonl@nvidia.com>
---
 drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 -
 drivers/infiniband/hw/mlx5/mr.c      | 3 +--
 drivers/infiniband/hw/mlx5/odp.c     | 2 --
 3 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 8b91babdd4c0..8d985f792367 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -739,7 +739,6 @@ struct mlx5_cache_ent {
 	char                    name[4];
 	u32                     order;
 	u32			access_mode;
-	u32			page;
 	unsigned int		ndescs;
 
 	u8 disabled:1;
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 410cc5fd2523..29ad674a9bcd 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -297,7 +297,7 @@ static void set_cache_mkc(struct mlx5_cache_ent *ent, void *mkc)
 
 	MLX5_SET(mkc, mkc, translations_octword_size,
 		 get_mkc_octo_size(ent->access_mode, ent->ndescs));
-	MLX5_SET(mkc, mkc, log_page_size, ent->page);
+	MLX5_SET(mkc, mkc, log_page_size, PAGE_SHIFT);
 }
 
 /* Asynchronously schedule new MRs to be populated in the cache. */
@@ -765,7 +765,6 @@ int mlx5_mkey_cache_init(struct mlx5_ib_dev *dev)
 		if (ent->order > mkey_cache_max_order(dev))
 			continue;
 
-		ent->page = PAGE_SHIFT;
 		ent->ndescs = 1 << ent->order;
 		ent->access_mode = MLX5_MKC_ACCESS_MODE_MTT;
 		if ((dev->mdev->profile.mask & MLX5_PROF_MASK_MR_CACHE) &&
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index bc97958818bb..e9a29adef7dc 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -1595,14 +1595,12 @@ void mlx5_odp_init_mkey_cache_entry(struct mlx5_cache_ent *ent)
 
 	switch (ent->order - 2) {
 	case MLX5_IMR_MTT_CACHE_ENTRY:
-		ent->page = PAGE_SHIFT;
 		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->page = MLX5_KSM_PAGE_SHIFT;
 		ent->ndescs = mlx5_imr_ksm_entries;
 		ent->access_mode = MLX5_MKC_ACCESS_MODE_KSM;
 		ent->limit = 0;
-- 
2.17.2