diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 5e3ae9f..5740214 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -1163,16 +1163,6 @@
 			err = -err;
 			goto error;
 		}
-		/* Check relax ordering support. */
-		if (!haswell_broadwell_cpu) {
-			sh->cmng.relaxed_ordering_write =
-				config->hca_attr.relaxed_ordering_write;
-			sh->cmng.relaxed_ordering_read =
-				config->hca_attr.relaxed_ordering_read;
-		} else {
-			sh->cmng.relaxed_ordering_read = 0;
-			sh->cmng.relaxed_ordering_write = 0;
-		}
 		sh->rq_ts_format = config->hca_attr.rq_ts_format;
 		sh->sq_ts_format = config->hca_attr.sq_ts_format;
 		sh->qp_ts_format = config->hca_attr.qp_ts_format;
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index abd7ff7..fb58631 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -469,17 +469,20 @@ static LIST_HEAD(, mlx5_dev_ctx_shared) mlx5_dev_ctx_list =
 /**
  * Destroy all the resources allocated for a counter memory management.
  *
+ * @param[in] sh
+ *   Pointer to mlx5_dev_ctx_shared object to free.
  * @param[in] mng
  *   Pointer to the memory management structure.
  */
 static void
-mlx5_flow_destroy_counter_stat_mem_mng(struct mlx5_counter_stats_mem_mng *mng)
+mlx5_flow_destroy_counter_stat_mem_mng(struct mlx5_dev_ctx_shared *sh,
+				       struct mlx5_counter_stats_mem_mng *mng)
 {
 	uint8_t *mem = (uint8_t *)(uintptr_t)mng->raws[0].data;
 
 	LIST_REMOVE(mng, next);
-	claim_zero(mlx5_devx_cmd_destroy(mng->dm));
-	claim_zero(mlx5_os_umem_dereg(mng->umem));
+	sh->share_cache.dereg_mr_cb(&mng->dm);
+	memset(&mng->dm, 0, sizeof(mng->dm));
 	mlx5_free(mem);
 }
 
@@ -533,7 +536,7 @@ static LIST_HEAD(, mlx5_dev_ctx_shared) mlx5_dev_ctx_list =
 	}
 	mng = LIST_FIRST(&sh->cmng.mem_mngs);
 	while (mng) {
-		mlx5_flow_destroy_counter_stat_mem_mng(mng);
+		mlx5_flow_destroy_counter_stat_mem_mng(sh, mng);
 		mng = LIST_FIRST(&sh->cmng.mem_mngs);
 	}
 	memset(&sh->cmng, 0, sizeof(sh->cmng));
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index e2eb4db..8e8727a 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -422,8 +422,7 @@ struct mlx5_flow_counter_pool {
 struct mlx5_counter_stats_mem_mng {
 	LIST_ENTRY(mlx5_counter_stats_mem_mng) next;
 	struct mlx5_counter_stats_raw *raws;
-	struct mlx5_devx_obj *dm;
-	void *umem;
+	struct mlx5_pmd_mr dm;
 };
 
 /* Raw memory structure for the counter statistics values of a pool. */
@@ -454,8 +453,6 @@ struct mlx5_flow_counter_mng {
 	uint8_t pending_queries;
 	uint16_t pool_index;
 	uint8_t query_thread_on;
-	bool relaxed_ordering_read;
-	bool relaxed_ordering_write;
 	bool counter_fallback; /* Use counter fallback management. */
 	LIST_HEAD(mem_mngs, mlx5_counter_stats_mem_mng) mem_mngs;
 	LIST_HEAD(stat_raws, mlx5_counter_stats_raw) free_stat_raws;
diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index d46fc33..afa8ab4 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -6717,7 +6717,6 @@ struct mlx5_meter_domains_infos *
 static int
 mlx5_flow_create_counter_stat_mem_mng(struct mlx5_dev_ctx_shared *sh)
 {
-	struct mlx5_devx_mkey_attr mkey_attr;
 	struct mlx5_counter_stats_mem_mng *mem_mng;
 	volatile struct flow_counter_stats *raw_data;
 	int raws_n = MLX5_CNT_CONTAINER_RESIZE + MLX5_MAX_PENDING_QUERIES;
@@ -6727,6 +6726,7 @@ struct mlx5_meter_domains_infos *
 			sizeof(struct mlx5_counter_stats_mem_mng);
 	size_t pgsize = rte_mem_page_size();
 	uint8_t *mem;
+	int ret;
 	int i;
 
 	if (pgsize == (size_t)-1) {
@@ -6741,26 +6741,9 @@ struct mlx5_meter_domains_infos *
 	}
 	mem_mng = (struct mlx5_counter_stats_mem_mng *)(mem + size) - 1;
 	size = sizeof(*raw_data) * MLX5_COUNTERS_PER_POOL * raws_n;
-	mem_mng->umem = mlx5_os_umem_reg(sh->ctx, mem, size,
-						 IBV_ACCESS_LOCAL_WRITE);
-	if (!mem_mng->umem) {
-		rte_errno = errno;
-		mlx5_free(mem);
-		return -rte_errno;
-	}
-	mkey_attr.addr = (uintptr_t)mem;
-	mkey_attr.size = size;
-	mkey_attr.umem_id = mlx5_os_get_umem_id(mem_mng->umem);
-	mkey_attr.pd = sh->pdn;
-	mkey_attr.log_entity_size = 0;
-	mkey_attr.pg_access = 0;
-	mkey_attr.klm_array = NULL;
-	mkey_attr.klm_num = 0;
-	mkey_attr.relaxed_ordering_write = sh->cmng.relaxed_ordering_write;
-	mkey_attr.relaxed_ordering_read = sh->cmng.relaxed_ordering_read;
-	mem_mng->dm = mlx5_devx_cmd_mkey_create(sh->ctx, &mkey_attr);
-	if (!mem_mng->dm) {
-		mlx5_os_umem_dereg(mem_mng->umem);
+	ret = sh->share_cache.reg_mr_cb(sh->pd, (void *)mem, size,
+					&mem_mng->dm);
+	if (ret) {
 		rte_errno = errno;
 		mlx5_free(mem);
 		return -rte_errno;
@@ -6879,7 +6862,7 @@ struct mlx5_meter_domains_infos *
 	ret = mlx5_devx_cmd_flow_counter_query(pool->min_dcs, 0,
 					       MLX5_COUNTERS_PER_POOL,
 					       NULL, NULL,
-					       pool->raw_hw->mem_mng->dm->id,
+					       pool->raw_hw->mem_mng->dm.lkey,
 					       (void *)(uintptr_t)
 					       pool->raw_hw->data,
 					       sh->devx_comp,
diff --git a/drivers/net/mlx5/windows/mlx5_os.c b/drivers/net/mlx5/windows/mlx5_os.c
index 6f39276..3e72e36 100644
--- a/drivers/net/mlx5/windows/mlx5_os.c
+++ b/drivers/net/mlx5/windows/mlx5_os.c
@@ -466,15 +466,6 @@
 			err = -err;
 			goto error;
 		}
-		/* Check relax ordering support. */
-		sh->cmng.relaxed_ordering_read = 0;
-		sh->cmng.relaxed_ordering_write = 0;
-		if (!haswell_broadwell_cpu) {
-			sh->cmng.relaxed_ordering_write =
-				config->hca_attr.relaxed_ordering_write;
-			sh->cmng.relaxed_ordering_read =
-				config->hca_attr.relaxed_ordering_read;
-		}
 	}
 	if (config->devx) {
 		uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
