bde7a88707
rescan-scsi-bus: sgdevice26: do not traverse sg class if scsi_device isnot added, which would speed up the rescan flow. rescan-scsi-bus.sh: add option --no-lip-scan, which would make FC can rescan device with specific channel and target Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
63 lines
2.4 KiB
Diff
63 lines
2.4 KiB
Diff
From b109bf4c5bacf65d32d2ab4fb990efb5230fda27 Mon Sep 17 00:00:00 2001
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From: Douglas Gilbert <dgilbert@interlog.com>
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Date: Fri, 12 Aug 2022 02:55:43 +0000
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Subject: [PATCH] rescan-scsi-bus.sh: add option --no-lip-scan
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lip is a FC operation and can be used to rescan device but it can not
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specify the channel and target. So add a new option to scan FC hosts
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according to the SCSI general interface in sysfs:
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/sys/class/scsi_host/hostX/scan.
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The default value of no_lip_scan is 0 which does not change the
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default behavior.
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Fix https://github.com/doug-gilbert/sg3_utils/issues/20
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Signed-off-by: Wenchao Hao <haowenchao@huawei.com>
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git-svn-id: https://svn.bingwo.ca/repos/sg3_utils/trunk@967 6180dd3e-e324-4e3e-922d-17de1ae2f315
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---
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scripts/rescan-scsi-bus.sh | 5 ++++-
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1 file changed, 4 insertions(+), 1 deletion(-)
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diff --git a/scripts/rescan-scsi-bus.sh b/scripts/rescan-scsi-bus.sh
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index 31ae736..67dccf3 100755
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--- a/scripts/rescan-scsi-bus.sh
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+++ b/scripts/rescan-scsi-bus.sh
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@@ -1158,6 +1158,7 @@ if [ "@$1" = @--help ] || [ "@$1" = @-h ] || [ "@$1" = "@-?" ] ; then
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echo "--largelun: Tell kernel to support LUNs > 7 even on SCSI2 devs"
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echo "--luns=LIST: Scan only lun(s) in LIST"
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echo "--multipath: same as -m"
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+ echo "--no-lip-scan: don't scan FC Host with issue-lip"
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echo "--nooptscan: don't stop looking for LUNs if 0 is not found"
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echo "--remove: same as -r"
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echo "--reportlun2: Tell kernel to try REPORT_LUN even on SCSI2 devices"
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@@ -1226,6 +1227,7 @@ mp_enable=
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lipreset=-1
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declare -i scan_flags=0
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ignore_rev=0
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+no_lip_scan=0
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# Scan options
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opt="$1"
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@@ -1260,6 +1262,7 @@ while [ ! -z "$opt" ] && [ -z "${opt##-*}" ] ; do
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-largelun) scan_flags=$((scan_flags|0x200)) ;;
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-luns=*) arg=${opt#-luns=}; lunsearch=$(expandlist "$arg") ;;
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-multipath) mp_enable=1 ;;
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+ -no-lip-scan) no_lip_scan=1 ;;
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-nooptscan) optscan=0 ;;
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-nosync) sync=0 ;;
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-remove) remove=1 ;;
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@@ -1337,7 +1340,7 @@ elif [ $resize -eq 1 ] ; then
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else
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for host in $hosts; do
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echo -n "Scanning host $host "
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- if [ -e "/sys/class/fc_host/host$host" ] ; then
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+ if [ $no_lip_scan -eq 0 ] && [ -e "/sys/class/fc_host/host$host" ] ; then
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# It's pointless to do a target scan on FC
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issue_lip=/sys/class/fc_host/host$host/issue_lip
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if [ -e "$issue_lip" ] && [ "$lipreset" -ge 0 ] ; then
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--
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2.27.0
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