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From f31220ec883956f459bc227d6fe35d3a581eb369 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Thu, 25 Feb 2016 20:58:09 +0800
Subject: [PATCH] 95iscsi: Autodetect iSCSI firmware
Some iSCSI initiator present firmware information in
/sys/firmware/ibft or /sys/firmware/iscsi_bootX
Whenever we detect one of those directories we should assume
that the iSCSI devices should be activated.
Also incorporates SUSE patches:
0049:
95iscsi: Use 'ip=ibft' for ibft autoconfiguration
For iBFT autoconfiguration we should be setting 'ip=ibft'
instead of rd.neednet. This should instruct dracut to only
enable the iBFT interfaces and leave the rest alone.
References: bnc#879038
0054:
95iscsi: update commandline printing
dracut has a separate callout 'cmdline' which should be used
for printing out the generated commandline.
Signed-off-by: Pavel Wieczorkiewicz <pwieczorkiewicz@suse.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Thomas Renninger <trenn@suse.de>
---
modules.d/95iscsi/module-setup.sh | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/modules.d/95iscsi/module-setup.sh b/modules.d/95iscsi/module-setup.sh
index 4ecba05e..7ef0caa6 100755
--- a/modules.d/95iscsi/module-setup.sh
+++ b/modules.d/95iscsi/module-setup.sh
@@ -29,6 +29,21 @@ check() {
return 0
}
+install_ibft() {
+ # When iBFT / iscsi_boot is detected:
+ # - Use 'ip=ibft' to set up iBFT network interface
+ # - specify firmware booting cmdline parameter
+
+ for d in /sys/firmware/* ; do
+ if [ -d ${d}/initiator ] ; then
+ if [ ${d##*/} = "ibft" ] ; then
+ echo -n "ip=ibft "
+ fi
+ echo -n "rd.iscsi.firmware=1"
+ fi
+ done
+}
+
depends() {
echo network rootfs-block
}
@@ -36,6 +51,12 @@ depends() {
installkernel() {
local _arch=$(uname -m)
+ # Detect iBFT and perform mandatory steps
+ if [[ $hostonly_cmdline == "yes" ]] ; then
+ install_ibft > "${initdir}/etc/cmdline.d/95iscsi.conf"
+ echo >> "${initdir}/etc/cmdline.d/95iscsi.conf"
+ fi
+
instmods bnx2i qla4xxx cxgb3i cxgb4i be2iscsi
hostonly="" instmods iscsi_tcp iscsi_ibft crc32c iscsi_boot_sysfs
iscsi_module_filter() {
@@ -75,6 +96,11 @@ installkernel() {
| iscsi_module_filter | instmods
}
+cmdline() {
+ install_ibft
+}
+
+# called by dracut
install() {
inst_multiple umount iscsistart hostname iscsi-iname
inst_multiple -o iscsiuio