diff options
Diffstat (limited to 'tests/zfs-tests/include/blkdev.shlib')
| -rw-r--r-- | tests/zfs-tests/include/blkdev.shlib | 395 |
1 files changed, 395 insertions, 0 deletions
diff --git a/tests/zfs-tests/include/blkdev.shlib b/tests/zfs-tests/include/blkdev.shlib new file mode 100644 index 000000000..876c84356 --- /dev/null +++ b/tests/zfs-tests/include/blkdev.shlib @@ -0,0 +1,395 @@ +# +# This file and its contents are supplied under the terms of the +# Common Development and Distribution License ("CDDL"), version 1.0. +# You may only use this file in accordance with the terms of version +# 1.0 of the CDDL. +# +# A full copy of the text of the CDDL should have accompanied this +# source. A copy of the CDDL is also available via the Internet at +# http://www.illumos.org/license/CDDL. +# + +# +# Copyright 2009 Sun Microsystems, Inc. All rights reserved. +# Use is subject to license terms. +# Copyright (c) 2012, 2016 by Delphix. All rights reserved. +# Copyright 2016 Nexenta Systems, Inc. +# Copyright (c) 2016, 2017 by Intel Corporation. All rights reserved. +# Copyright (c) 2017 Lawrence Livermore National Security, LLC. +# Copyright (c) 2017 Datto Inc. +# Copyright (c) 2017 Open-E, Inc. All Rights Reserved. +# + +# +# Returns SCSI host number for the given disk +# +function get_scsi_host #disk +{ + typeset disk=$1 + ls /sys/block/${disk}/device/scsi_device | cut -d : -f 1 +} + +# +# Cause a scan of all scsi host adapters by default +# +# $1 optional host number +# +function scan_scsi_hosts +{ + typeset hostnum=${1} + + if is_linux; then + if [[ -z $hostnum ]]; then + for host in /sys/class/scsi_host/host*; do + log_must eval "echo '- - -' > $host/scan" + done + else + log_must eval \ + "echo /sys/class/scsi_host/host$hostnum/scan" \ + > /dev/null + log_must eval \ + "echo '- - -' > /sys/class/scsi_host/host$hostnum/scan" + fi + fi +} + +# +# Wait for newly created block devices to have their minors created. +# +function block_device_wait +{ + if is_linux; then + udevadm trigger + udevadm settle + fi +} + +# +# Check if the given device is physical device +# +function is_physical_device #device +{ + typeset device=${1#$DEV_DSKDIR} + device=${device#$DEV_RDSKDIR} + + if is_linux; then + [[ -b "$DEV_DSKDIR/$device" ]] && \ + [[ -f /sys/module/loop/parameters/max_part ]] + return $? + else + echo $device | egrep "^c[0-F]+([td][0-F]+)+$" > /dev/null 2>&1 + return $? + fi +} + +# +# Check if the given device is a real device (ie SCSI device) +# +function is_real_device #disk +{ + typeset disk=$1 + [[ -z $disk ]] && log_fail "No argument for disk given." + + if is_linux; then + lsblk $DEV_RDSKDIR/$disk -o TYPE 2>/dev/null | \ + egrep disk >/dev/null + return $? + fi +} + +# +# Check if the given device is a loop device +# +function is_loop_device #disk +{ + typeset disk=$1 + [[ -z $disk ]] && log_fail "No argument for disk given." + + if is_linux; then + lsblk $DEV_RDSKDIR/$disk -o TYPE 2>/dev/null | \ + egrep loop >/dev/null + return $? + fi +} + +# +# Check if the given device is a multipath device and if there is a sybolic +# link to a device mapper and to a disk +# Currently no support for dm devices alone without multipath +# +function is_mpath_device #disk +{ + typeset disk=$1 + [[ -z $disk ]] && log_fail "No argument for disk given." + + if is_linux; then + lsblk $DEV_MPATHDIR/$disk -o TYPE 2>/dev/null | \ + egrep mpath >/dev/null + if (($? == 0)); then + readlink $DEV_MPATHDIR/$disk > /dev/null 2>&1 + return $? + else + return $? + fi + fi +} + +# Set the slice prefix for disk partitioning depending +# on whether the device is a real, multipath, or loop device. +# Currently all disks have to be of the same type, so only +# checks first disk to determine slice prefix. +# +function set_slice_prefix +{ + typeset disk + typeset -i i=0 + + if is_linux; then + while (( i < $DISK_ARRAY_NUM )); do + disk="$(echo $DISKS | nawk '{print $(i + 1)}')" + if ( is_mpath_device $disk ) && [[ -z $(echo $disk | awk 'substr($1,18,1)\ + ~ /^[[:digit:]]+$/') ]] || ( is_real_device $disk ); then + export SLICE_PREFIX="" + return 0 + elif ( is_mpath_device $disk || is_loop_device \ + $disk ); then + export SLICE_PREFIX="p" + return 0 + else + log_fail "$disk not supported for partitioning." + fi + (( i = i + 1)) + done + fi +} + +# +# Set the directory path of the listed devices in $DISK_ARRAY_NUM +# Currently all disks have to be of the same type, so only +# checks first disk to determine device directory +# default = /dev (linux) +# real disk = /dev (linux) +# multipath device = /dev/mapper (linux) +# +function set_device_dir +{ + typeset disk + typeset -i i=0 + + if is_linux; then + while (( i < $DISK_ARRAY_NUM )); do + disk="$(echo $DISKS | nawk '{print $(i + 1)}')" + if is_mpath_device $disk; then + export DEV_DSKDIR=$DEV_MPATHDIR + return 0 + else + export DEV_DSKDIR=$DEV_RDSKDIR + return 0 + fi + (( i = i + 1)) + done + else + export DEV_DSKDIR=$DEV_RDSKDIR + fi +} + +# +# Get the directory path of given device +# +function get_device_dir #device +{ + typeset device=$1 + + if ! $(is_physical_device $device) ; then + if [[ $device != "/" ]]; then + device=${device%/*} + fi + if [[ -b "$DEV_DSKDIR/$device" ]]; then + device="$DEV_DSKDIR" + fi + echo $device + else + echo "$DEV_DSKDIR" + fi +} + +# +# Get persistent name for given disk +# +function get_persistent_disk_name #device +{ + typeset device=$1 + typeset dev_id + + if is_linux; then + if is_real_device $device; then + dev_id="$(udevadm info -q all -n $DEV_DSKDIR/$device \ + | egrep disk/by-id | nawk '{print $2; exit}' \ + | nawk -F / '{print $3}')" + echo $dev_id + elif is_mpath_device $device; then + dev_id="$(udevadm info -q all -n $DEV_DSKDIR/$device \ + | egrep disk/by-id/dm-uuid \ + | nawk '{print $2; exit}' \ + | nawk -F / '{print $3}')" + echo $dev_id + else + echo $device + fi + else + echo $device + fi +} + +# +# Online or offline a disk on the system +# +# First checks state of disk. Test will fail if disk is not properly onlined +# or offlined. Online is a full rescan of SCSI disks by echoing to every +# host entry. +# +function on_off_disk # disk state{online,offline} host +{ + typeset disk=$1 + typeset state=$2 + typeset host=$3 + + [[ -z $disk ]] || [[ -z $state ]] && \ + log_fail "Arguments invalid or missing" + + if is_linux; then + if [[ $state == "offline" ]] && ( is_mpath_device $disk ); then + dm_name="$(readlink $DEV_DSKDIR/$disk \ + | nawk -F / '{print $2}')" + slave="$(ls /sys/block/${dm_name}/slaves \ + | nawk '{print $1}')" + while [[ -n $slave ]]; do + #check if disk is online + lsscsi | egrep $slave > /dev/null + if (($? == 0)); then + slave_dir="/sys/block/${dm_name}" + slave_dir+="/slaves/${slave}/device" + ss="${slave_dir}/state" + sd="${slave_dir}/delete" + log_must eval "echo 'offline' > ${ss}" + log_must eval "echo '1' > ${sd}" + lsscsi | egrep $slave > /dev/null + if (($? == 0)); then + log_fail "Offlining" \ + "$disk failed" + fi + fi + slave="$(ls /sys/block/$dm_name/slaves \ + 2>/dev/null | nawk '{print $1}')" + done + elif [[ $state == "offline" ]] && ( is_real_device $disk ); then + #check if disk is online + lsscsi | egrep $disk > /dev/null + if (($? == 0)); then + dev_state="/sys/block/$disk/device/state" + dev_delete="/sys/block/$disk/device/delete" + log_must eval "echo 'offline' > ${dev_state}" + log_must eval "echo '1' > ${dev_delete}" + lsscsi | egrep $disk > /dev/null + if (($? == 0)); then + log_fail "Offlining $disk" \ + "failed" + fi + else + log_note "$disk is already offline" + fi + elif [[ $state == "online" ]]; then + #force a full rescan + scan_scsi_hosts $host + block_device_wait + if is_mpath_device $disk; then + dm_name="$(readlink $DEV_DSKDIR/$disk \ + | nawk -F / '{print $2}')" + slave="$(ls /sys/block/$dm_name/slaves \ + | nawk '{print $1}')" + lsscsi | egrep $slave > /dev/null + if (($? != 0)); then + log_fail "Onlining $disk failed" + fi + elif is_real_device $disk; then + typeset -i retries=0 + while ! lsscsi | egrep -q $disk; do + if (( $retries > 2 )); then + log_fail "Onlining $disk failed" + break + fi + (( ++retries )) + sleep 1 + done + else + log_fail "$disk is not a real dev" + fi + else + log_fail "$disk failed to $state" + fi + fi +} + +# +# Simulate disk removal +# +function remove_disk #disk +{ + typeset disk=$1 + on_off_disk $disk "offline" + block_device_wait +} + +# +# Simulate disk insertion for the given SCSI host +# +function insert_disk #disk scsi_host +{ + typeset disk=$1 + typeset scsi_host=$2 + on_off_disk $disk "online" $scsi_host + block_device_wait +} + +# +# Load scsi_debug module with specified parameters +# +function load_scsi_debug # dev_size_mb add_host num_tgts max_luns +{ + typeset devsize=$1 + typeset hosts=$2 + typeset tgts=$3 + typeset luns=$4 + + [[ -z $devsize ]] || [[ -z $hosts ]] || [[ -z $tgts ]] || \ + [[ -z $luns ]] && log_fail "Arguments invalid or missing" + + if is_linux; then + modprobe -n scsi_debug + if (($? != 0)); then + log_unsupported "Platform does not have scsi_debug" + "module" + fi + lsmod | egrep scsi_debug > /dev/null + if (($? == 0)); then + log_fail "scsi_debug module already installed" + else + log_must modprobe scsi_debug dev_size_mb=$devsize \ + add_host=$hosts num_tgts=$tgts max_luns=$luns + block_device_wait + lsscsi | egrep scsi_debug > /dev/null + if (($? == 1)); then + log_fail "scsi_debug module install failed" + fi + fi + fi +} + +# +# Get scsi_debug device name. +# Returns basename of scsi_debug device (for example "sdb"). +# +function get_debug_device +{ + lsscsi | nawk '/scsi_debug/ {print $6; exit}' | cut -d / -f3 +} |