1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4. "$(cd "$(dirname "$0")" && pwd)"/test_common.sh
5
6TID="generic_03"
7ERR_CODE=0
8
9_prep_test "null" "check dma & segment limits for zero copy"
10
11dev_id=$(_add_ublk_dev -t null -z)
12_check_add_dev $TID $?
13
14sysfs_path=/sys/block/ublkb"${dev_id}"
15dma_align=$(cat "$sysfs_path"/queue/dma_alignment)
16max_segments=$(cat "$sysfs_path"/queue/max_segments)
17max_segment_size=$(cat "$sysfs_path"/queue/max_segment_size)
18if [ "$dma_align" != "4095" ]; then
19	ERR_CODE=255
20fi
21if [ "$max_segments" != "32" ]; then
22	ERR_CODE=255
23fi
24if [ "$max_segment_size" != "32768" ]; then
25	ERR_CODE=255
26fi
27_cleanup_test "null"
28_show_result $TID $ERR_CODE
29