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  #!/bin/bash
  # Intel MIC Platform Software Stack (MPSS)
  #
  # Copyright(c) 2013 Intel Corporation.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU General Public License, version 2, as
  # published by the Free Software Foundation.
  #
  # This program is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the implied warranty of
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  # General Public License for more details.
  #
  # The full GNU General Public License is included in this distribution in
  # the file called "COPYING".
  #
  # Intel MIC User Space Tools.
  #
  # mpss	Start mpssd.
  #
  # chkconfig: 2345 95 05
  # description: start MPSS stack processing.
  #
  ### BEGIN INIT INFO
  # Provides: mpss
  # Required-Start:
  # Required-Stop:
  # Short-Description: MPSS stack control
  # Description: MPSS stack control
  ### END INIT INFO
  
  # Source function library.
  . /etc/init.d/functions
  
  exec=/usr/sbin/mpssd
  sysfs="/sys/class/mic"
  
  start()
  {
  	[ -x $exec ] || exit 5
  
  	if [ "`ps -e | awk '{print $4}' | grep mpssd | head -1`" = "mpssd" ]; then
  		echo -e $"MPSSD already running! "
  		success
  		echo
  		return 0
  	fi
  
  	echo -e $"Starting MPSS Stack"
  	echo -e $"Loading MIC_HOST Module"
  
  	# Ensure the driver is loaded
  	if [ ! -d "$sysfs" ]; then
  		modprobe mic_host
  		RETVAL=$?
  		if [ $RETVAL -ne 0 ]; then
  			failure
  			echo
  			return $RETVAL
  		fi
  	fi
  
  	# Start the daemon
  	echo -n $"Starting MPSSD "
  	$exec
  	RETVAL=$?
  	if [ $RETVAL -ne 0 ]; then
  		failure
  		echo
  		return $RETVAL
  	fi
  	success
  	echo
  
  	sleep 5
  
  	# Boot the cards
  	micctrl -b
  
  	# Wait till ping works
  	for f in $sysfs/*
  	do
  		count=100
  		ipaddr=`cat $f/cmdline`
  		ipaddr=${ipaddr#*address,}
  		ipaddr=`echo $ipaddr | cut -d, -f1 | cut -d\; -f1`
  		while [ $count -ge 0 ]
  		do
  			echo -e "Pinging "`basename $f`" "
  			ping -c 1 $ipaddr &> /dev/null
  			RETVAL=$?
  			if [ $RETVAL -eq 0 ]; then
  				success
  				break
  			fi
  			sleep 1
  			count=`expr $count - 1`
  		done
  		[ $RETVAL -ne 0 ] && failure || success
  		echo
  	done
  	return $RETVAL
  }
  
  stop()
  {
  	echo -e $"Shutting down MPSS Stack: "
  
  	# Bail out if module is unloaded
  	if [ ! -d "$sysfs" ]; then
  		echo -n $"Module unloaded "
  		success
  		echo
  		return 0
  	fi
  
  	# Shut down the cards.
  	micctrl -S
  
  	# Wait for the cards to go offline
  	for f in $sysfs/*
  	do
  		while [ "`cat $f/state`" != "offline" ]
  		do
  			sleep 1
  			echo -e "Waiting for "`basename $f`" to go offline"
  		done
  	done
  
  	# Display the status of the cards
  	micctrl -s
  
  	# Kill MPSSD now
  	echo -n $"Killing MPSSD"
  	killall -9 mpssd 2>/dev/null
  	RETVAL=$?
  	[ $RETVAL -ne 0 ] && failure || success
  	echo
  	return $RETVAL
  }
  
  restart()
  {
  	stop
  	sleep 5
  	start
  }
  
  status()
  {
  	micctrl -s
  	if [ "`ps -e | awk '{print $4}' | grep mpssd | head -n 1`" = "mpssd" ]; then
  		echo "mpssd is running"
  	else
  		echo "mpssd is stopped"
  	fi
  	return 0
  }
  
  unload()
  {
  	if [ ! -d "$sysfs" ]; then
  		echo -n $"No MIC_HOST Module: "
  		success
  		echo
  		return
  	fi
  
  	stop
  
  	sleep 5
  	echo -n $"Removing MIC_HOST Module: "
  	modprobe -r mic_host
  	RETVAL=$?
  	[ $RETVAL -ne 0 ] && failure || success
  	echo
  	return $RETVAL
  }
  
  case $1 in
  	start)
  		start
  		;;
  	stop)
  		stop
  		;;
  	restart)
  		restart
  		;;
  	status)
  		status
  		;;
  	unload)
  		unload
  		;;
  	*)
  		echo $"Usage: $0 {start|stop|restart|status|unload}"
  		exit 2
  esac
  
  exit $?