95fcoe: Add shutdown script

We should be disabling the FCoE connection (which triggers sending
a LOGO internally) to logout from the target; this resets the target
and will avoid hitting a busy condition during reboots.

References: bsc#994860

Signed-off-by: Hannes Reinecke <hare@suse.com>

modules.d/95fcoe/module-setup.sh

@@ -108,6 +108,7 @@ install() {
     inst_hook pre-trigger 03 "$moddir/lldpad.sh"
     inst_hook cmdline 99 "$moddir/parse-fcoe.sh"
     inst_hook cleanup 90 "$moddir/cleanup-fcoe.sh"
+    inst_hook shutdown 40 "$moddir/stop-fcoe.sh"
     dracut_need_initqueue
 }
 

modules.d/95fcoe/stop-fcoe.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+for f in /sys/bus/fcoe/devices/ctlr_* ; do
+    [ -e $f ] || continue
+    echo 0 > $f/enabled
+done