#!/bin/sh

# config file syntax:

# deviceno   WWPN   FCPLUN

#

# Example:

# 0.0.4000 0x5005076300C213e9 0x5022000000000000 

# 0.0.4001 0x5005076300c213e9 0x5023000000000000 

#

#

# manual setup:

# modprobe zfcp

# echo 1    > /sys/bus/ccw/drivers/zfcp/0.0.4000/online

# echo LUN  > /sys/bus/ccw/drivers/zfcp/0.0.4000/WWPN/unit_add

# 

# Example:

# modprobe zfcp

# echo 1                  > /sys/bus/ccw/drivers/zfcp/0.0.4000/online

# echo 0x5022000000000000 > /sys/bus/ccw/drivers/zfcp/0.0.4000/0x5005076300c213e9/unit_add

CONFIG=/etc/zfcp.conf

PATH=/bin:/sbin

if [ -f "$CONFIG" ]; then

   if [ ! -d /sys/bus/ccw/drivers/zfcp ]; then

      modprobe zfcp

   fi

   if [ ! -d /sys/bus/ccw/drivers/zfcp ]; then

      return

   fi

   sed 'y/ABCDEF/abcdef/' < $CONFIG | while read line; do

       case $line in

	   \#*) ;;

	   *)

	       [ -z "$line" ] && continue

	       set $line

	       if [ $# -eq 5 ]; then

		   DEVICE=$1

		   SCSIID=$2

		   WWPN=$3

		   SCSILUN=$4

		   FCPLUN=$5

		   echo "Warning: Deprecated values in /etc/zfcp.conf, ignoring SCSI ID $SCSIID and SCSI LUN $SCSILUN"

	       elif [ $# -eq 3 ]; then

		   DEVICE=${1##*0x}

		   WWPN=$2

		   FCPLUN=$3

	       fi

               [ `cat /sys/bus/ccw/drivers/zfcp/${DEVICE}/online` = "0" ] \

                   && echo 1 > /sys/bus/ccw/drivers/zfcp/${DEVICE}/online

	       [ ! -d /sys/bus/ccw/drivers/zfcp/${DEVICE}/${WWPN}/${FCPLUN} ] \

		   && echo $FCPLUN > /sys/bus/ccw/drivers/zfcp/${DEVICE}/${WWPN}/unit_add

	       ;;

       esac

   done

fi