dracut/add_dracuts_network_params_for_iscsi.patch

From c1db8b0b1a7545c9edf2b0b2328733c44ba4e8f1 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Mon, 5 May 2014 08:32:16 +0200
Subject: 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.

Signed-off-by: Pavel Wieczorkiewicz <pwieczorkiewicz@suse.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 modules.d/95iscsi/module-setup.sh    | 16 ++++++++++++++++
 modules.d/95iscsi/parse-iscsiroot.sh | 10 ++++++++--
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/modules.d/95iscsi/module-setup.sh b/modules.d/95iscsi/module-setup.sh
index 1b0f292..97e6e81 100755
--- a/modules.d/95iscsi/module-setup.sh
+++ b/modules.d/95iscsi/module-setup.sh
@@ -39,6 +39,22 @@ depends() {
 installkernel() {
     local _arch=$(uname -m)
 
+    install_ibft() {
+        # When iBFT / iscsi_boot is detected:
+        # - mark network as mandatory
+        # - specify firmware booting cmdline parameter
+
+        for d in /sys/firmware/* ; do
+            if [ -d ${d}/initiator ] ; then
+                echo "rd.neednet=1" >> "${initdir}/etc/cmdline.d/95iscsi.conf"
+                echo "rd.iscsi.firmware=1" >> "${initdir}/etc/cmdline.d/95iscsi.conf"
+            fi
+        done
+    }
+
+    # Detect iBFT and perform mandatory steps
+    install_ibft
+
     instmods bnx2i qla4xxx cxgb3i cxgb4i be2iscsi
     hostonly="" instmods iscsi_tcp iscsi_ibft crc32c iscsi_boot_sysfs
     iscsi_module_filter() {
diff --git a/modules.d/95iscsi/parse-iscsiroot.sh b/modules.d/95iscsi/parse-iscsiroot.sh
index 4be9d56..a965cc6 100755
--- a/modules.d/95iscsi/parse-iscsiroot.sh
+++ b/modules.d/95iscsi/parse-iscsiroot.sh
@@ -59,11 +59,17 @@ if [ -n "$iscsiroot" ] ; then
     [ -z "$netroot" ] || [ "$netroot" = "iscsi" ] && netroot=iscsi:$iscsiroot
 fi
 
+# Autodetect iSCSI firmware targets
+if [ -z "$iscsiroot" ] ; then
+    modprobe -q iscsi_boot_sysfs
+    modprobe -q iscsi_ibft
+    [ -d /sys/firmware/ibft ] && iscsi_firmware="1"
+    [ -d /sys/firmware/iscsi_boot1 ] && iscsi_firmware="1"
+fi
+
 # iscsi_firmware does not need argument checking
 if [ -n "$iscsi_firmware" ] ; then
     netroot=${netroot:-iscsi:}
-    modprobe -q iscsi_boot_sysfs 2>/dev/null
-    modprobe -q iscsi_ibft
     initqueue --onetime --timeout "/sbin/iscsiroot dummy '$netroot' '$NEWROOT'"
 fi
 
-- 
1.8.5.2