| #!/bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| |
| . "$(cd "$(dirname "$0")" && pwd)"/test_common.sh |
| |
| TID="generic_03" |
| ERR_CODE=0 |
| |
| _prep_test "null" "check dma & segment limits for zero copy" |
| |
| dev_id=$(_add_ublk_dev -t null -z) |
| _check_add_dev $TID $? |
| |
| sysfs_path=/sys/block/ublkb"${dev_id}" |
| dma_align=$(cat "$sysfs_path"/queue/dma_alignment) |
| max_segments=$(cat "$sysfs_path"/queue/max_segments) |
| max_segment_size=$(cat "$sysfs_path"/queue/max_segment_size) |
| if [ "$dma_align" != "4095" ]; then |
| ERR_CODE=255 |
| fi |
| if [ "$max_segments" != "32" ]; then |
| ERR_CODE=255 |
| fi |
| if [ "$max_segment_size" != "32768" ]; then |
| ERR_CODE=255 |
| fi |
| _cleanup_test "null" |
| _show_result $TID $ERR_CODE |
