95fcoe: use interface names instead of MAC addresses

Now that we are using persistent network names we can switch
to using the interface names when specifying the fcoe configuration.
With that we can print the fcoe configuration only once.

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

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

@@ -41,7 +41,7 @@ get_vlan_parent() {
 
 # called by dracut
 cmdline() {
-
+    {
         for c in /sys/bus/fcoe/devices/ctlr_* ; do
             [ -L $c ] || continue
             read enabled < $c/enabled
@@ -54,12 +54,14 @@ cmdline() {
             fi
             d=$(cd -P $c; echo $PWD)
             i=${d%/*}
+            ifname=${i##*/}
             read mac < ${i}/address
             s=$(dcbtool gc ${i##*/} dcb 2>/dev/null | sed -n 's/^DCB State:\t*\(.*\)/\1/p')
             if [ -z "$s" ] ; then
 	        p=$(get_vlan_parent ${i})
 	        if [ "$p" ] ; then
 	            s=$(dcbtool gc ${p} dcb 2>/dev/null | sed -n 's/^DCB State:\t*\(.*\)/\1/p')
+                    ifname=${p##*/}
 	        fi
             fi
             if [ "$s" = "on" ] ; then
@@ -81,8 +83,10 @@ cmdline() {
                 [ $? -eq 0 ] && dcb="nodcb"
             fi
 
-        echo "fcoe=${mac}:${dcb}:${mode}"
+            echo "ifname=${ifname}:${mac}"
+            echo "fcoe=${ifname}:${dcb}:${mode}"
         done
+    } | sort | uniq
 }
 
 # called by dracut