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