RDMA/mlx5: Replace struct mlx5_core_mkey by u32 key

In mlx5_core and vdpa there is no use of mlx5_core_mkey members except
for the key itself.

As preparation for moving mlx5_core_mkey to mlx5_ib, the occurrences of
struct mlx5_core_mkey in all modules except for mlx5_ib are replaced by
a u32 key.

Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>

3 files changed, 11 insertions, 12 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c
index 66c24767e3b0..7f6fd9c5e371 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c
@@ -24,7 +24,7 @@ struct mlx5dr_icm_dm {
 };
 
 struct mlx5dr_icm_mr {
-	struct mlx5_core_mkey mkey;
+	u32 mkey;
 	struct mlx5dr_icm_dm dm;
 	struct mlx5dr_domain *dmn;
 	size_t length;
@@ -33,7 +33,7 @@ struct mlx5dr_icm_mr {
 
 static int dr_icm_create_dm_mkey(struct mlx5_core_dev *mdev,
 				 u32 pd, u64 length, u64 start_addr, int mode,
-				 struct mlx5_core_mkey *mkey)
+				 u32 *mkey)
 {
 	u32 inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
 	u32 in[MLX5_ST_SZ_DW(create_mkey_in)] = {};
@@ -116,7 +116,7 @@ dr_icm_pool_mr_create(struct mlx5dr_icm_pool *pool)
 	return icm_mr;
 
 free_mkey:
-	mlx5_core_destroy_mkey(mdev, &icm_mr->mkey);
+	mlx5_core_destroy_mkey(mdev, icm_mr->mkey);
 free_dm:
 	mlx5_dm_sw_icm_dealloc(mdev, icm_mr->dm.type, icm_mr->dm.length, 0,
 			       icm_mr->dm.addr, icm_mr->dm.obj_id);
@@ -130,7 +130,7 @@ static void dr_icm_pool_mr_destroy(struct mlx5dr_icm_mr *icm_mr)
 	struct mlx5_core_dev *mdev = icm_mr->dmn->mdev;
 	struct mlx5dr_icm_dm *dm = &icm_mr->dm;
 
-	mlx5_core_destroy_mkey(mdev, &icm_mr->mkey);
+	mlx5_core_destroy_mkey(mdev, icm_mr->mkey);
 	mlx5_dm_sw_icm_dealloc(mdev, dm->type, dm->length, 0,
 			       dm->addr, dm->obj_id);
 	kvfree(icm_mr);
@@ -252,7 +252,7 @@ dr_icm_chunk_create(struct mlx5dr_icm_pool *pool,
 
 	offset = mlx5dr_icm_pool_dm_type_to_entry_size(pool->icm_type) * seg;
 
-	chunk->rkey = buddy_mem_pool->icm_mr->mkey.key;
+	chunk->rkey = buddy_mem_pool->icm_mr->mkey;
 	chunk->mr_addr = offset;
 	chunk->icm_addr =
 		(uintptr_t)buddy_mem_pool->icm_mr->icm_start_addr + offset;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
index bfb14b4b1906..00aef47d7682 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
@@ -350,7 +350,7 @@ static void dr_fill_data_segs(struct mlx5dr_send_ring *send_ring,
 	send_info->read.length = send_info->write.length;
 	/* Read into the same write area */
 	send_info->read.addr = (uintptr_t)send_info->write.addr;
-	send_info->read.lkey = send_ring->mr->mkey.key;
+	send_info->read.lkey = send_ring->mr->mkey;
 
 	if (send_ring->pending_wqe % send_ring->signal_th == 0)
 		send_info->read.send_flags = IB_SEND_SIGNALED;
@@ -388,7 +388,7 @@ static int dr_postsend_icm_data(struct mlx5dr_domain *dmn,
 		       (void *)(uintptr_t)send_info->write.addr,
 		       send_info->write.length);
 		send_info->write.addr = (uintptr_t)send_ring->mr->dma_addr + buff_offset;
-		send_info->write.lkey = send_ring->mr->mkey.key;
+		send_info->write.lkey = send_ring->mr->mkey;
 	}
 
 	send_ring->tx_head++;
@@ -848,8 +848,7 @@ static void dr_destroy_cq(struct mlx5_core_dev *mdev, struct mlx5dr_cq *cq)
 	kfree(cq);
 }
 
-static int
-dr_create_mkey(struct mlx5_core_dev *mdev, u32 pdn, struct mlx5_core_mkey *mkey)
+static int dr_create_mkey(struct mlx5_core_dev *mdev, u32 pdn, u32 *mkey)
 {
 	u32 in[MLX5_ST_SZ_DW(create_mkey_in)] = {};
 	void *mkc;
@@ -908,7 +907,7 @@ static struct mlx5dr_mr *dr_reg_mr(struct mlx5_core_dev *mdev,
 
 static void dr_dereg_mr(struct mlx5_core_dev *mdev, struct mlx5dr_mr *mr)
 {
-	mlx5_core_destroy_mkey(mdev, &mr->mkey);
+	mlx5_core_destroy_mkey(mdev, mr->mkey);
 	dma_unmap_single(mlx5_core_dma_dev(mdev), mr->dma_addr, mr->size,
 			 DMA_BIDIRECTIONAL);
 	kfree(mr);
@@ -1039,7 +1038,7 @@ int mlx5dr_send_ring_force_drain(struct mlx5dr_domain *dmn)
 	send_info.write.lkey = 0;
 	/* Using the sync_mr in order to write/read */
 	send_info.remote_addr = (uintptr_t)send_ring->sync_mr->addr;
-	send_info.rkey = send_ring->sync_mr->mkey.key;
+	send_info.rkey = send_ring->sync_mr->mkey;
 
 	for (i = 0; i < num_of_sends_req; i++) {
 		ret = dr_postsend_icm_data(dmn, &send_info);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
index b20e8aabb861..6c67185c05c1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_types.h
@@ -1275,7 +1275,7 @@ struct mlx5dr_cq {
 
 struct mlx5dr_mr {
 	struct mlx5_core_dev *mdev;
-	struct mlx5_core_mkey mkey;
+	u32 mkey;
 	dma_addr_t dma_addr;
 	void *addr;
 	size_t size;