linux/drivers/infiniband/hw/hns/hns_roce_db.c

/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
/*
 * Copyright (c) 2017 Hisilicon Limited.
 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
 */

#include <rdma/ib_umem.h>
#include "hns_roce_device.h"

int hns_roce_db_map_user(struct hns_roce_ucontext *context, unsigned long virt,
			 struct hns_roce_db *db)
{ … }

void hns_roce_db_unmap_user(struct hns_roce_ucontext *context,
			    struct hns_roce_db *db)
{ … }

static struct hns_roce_db_pgdir *hns_roce_alloc_db_pgdir(
					struct device *dma_device)
{ … }

static int hns_roce_alloc_db_from_pgdir(struct hns_roce_db_pgdir *pgdir,
					struct hns_roce_db *db, int order)
{ … }

int hns_roce_alloc_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db,
		      int order)
{ … }

void hns_roce_free_db(struct hns_roce_dev *hr_dev, struct hns_roce_db *db)
{ … }