Subversion Repositories configs

#!/bin/bash

#

# Bring up/down NFSoRDMA support

#

# chkconfig: - 31 61

# description: Enables/Disables NFS over RDMA interfaces

# config:	/etc/rdma/rdma.conf

#

### BEGIN INIT INFO

# Provides:       nfs-rdma

# Default-Stop: 0 1 2 3 4 5 6

# Required-Start: $network $rdma $nfs

# Required-Stop: $nfs

# Short-Description: Enables/Disables NFS over RDMA interfaces

# Description: Enables/Disables NFS over RDMA interfaces

### END INIT INFO

CONFIG=/etc/rdma/rdma.conf

. /etc/rc.d/init.d/functions

LOAD_ULP_MODULES=""

if [ -f $CONFIG ]; then

    . $CONFIG

    if [ "${NFSoRDMA_LOAD}" == "yes" ]; then

	LOAD_ULP_MODULES="svcrdma xprtrdma"

    fi

    if [ -n "${NFSoRDMA_PORT}" ]; then

	PORT=${NFSoRDMA_PORT}

    else

	PORT=2050

    fi

fi

UNLOAD_ULP_MODULES="xprtrdma svcrdma"

# If module $1 is loaded return - 0 else - 1

is_module()

{

    /sbin/lsmod | grep -w "$1" > /dev/null 2>&1

    return $?

}

load_modules()

{

    local RC=0

    for module in $*; do

	if ! is_module $module; then

	    /sbin/modprobe $module

	    res=$?

	    RC=$[ $RC + $res ]

	    if [ $res -ne 0 ]; then

		echo

		echo -n "Failed to load module $mod"

	    fi

	fi

    done

    return $RC

}

unload_module()

{

    local mod=$1

    # Unload module $1

    if is_module $mod; then

	/sbin/rmmod $mod > /dev/null 2>&1

	if [ $? -ne 0 ]; then

	    echo

	    echo "Failed to unload $mod"

	    return 1

	fi

    fi

    return 0

}

start()

{

    local RC=0

    local loaded=0

    echo -n "Enabling NFSoRDMA support:"

    load_modules $LOAD_ULP_MODULES

    RC=$[ $RC + $? ]

    if [ $RC -gt 0 ]; then

    	for mod in $UNLOAD_ULP_MODULES; do

	    unload_module $mod

	done

	echo_failure

	echo

	return $RC

    fi

    echo "rdma $PORT" > /proc/fs/nfsd/portlist

    sleep 1

    entry=$(grep rdma /proc/fs/nfsd/portlist)

    if [ -z "$entry" ]; then

    	for mod in $UNLOAD_ULP_MODULES; do

	    unload_module $mod

	done

	echo_failure

	echo

	return 1

    fi

    touch /var/lock/subsys/nfs-rdma

    echo_success

    echo

    return $RC

}

stop()

{

    echo -n "Disabling NFSoRDMA support:"

    if ! is_module svcrdma; then

	# Nothing to do, make sure lock file is gone and return

	rm -f /var/lock/subsys/nfs-rdma

	echo_success

	echo

	return 0

    fi

    # Tell the nfs server to quit listening on the rdma port

    port=$(grep rdma /proc/fs/nfsd/portlist)

    if [ -n "$port" ]; then

	echo "-$port" > /proc/fs/nfsd/portlist

	# Small sleep to let nfsd process our request

	sleep 1

    fi

    # Unload NFSoRDMA modules

    for mod in $UNLOAD_ULP_MODULES

    do

	unload_module $mod

	RC=$[ $RC + $? ]

    done

    [ $RC -eq 0 ] && rm -f /var/lock/subsys/nfs-rdma

    [ $RC -eq 0 ] && echo_success || echo_failure

    echo

    return $RC

}

status()

{

    entry=$(grep rdma /proc/fs/nfsd/portlist)

    if [ -z "$entry" ]; then

	if [ -f /var/lock/subsys/nfs-rdma ]; then

	    return 2

	else

	    return 3

	fi

    else

	return 0

    fi

}

restart ()

{

    stop

    start

}

condrestart ()

{

    [ -e /var/lock/subsys/nfs-rdma ] && restart || return 0

}

usage ()

{

    echo

    echo "Usage: `basename $0` {start|stop|restart|condrestart|try-restart|force-reload|status}"

    echo

    return 2

}

case $1 in

    start|stop|restart|condrestart|try-restart|force-reload)

	[ `id -u` != "0" ] && exit 4 ;;

esac

case $1 in

    start) start; RC=$? ;;

    stop) stop; RC=$? ;;

    restart) restart; RC=$? ;;

    reload) RC=3 ;;

    condrestart) condrestart; RC=$? ;;

    try-restart) condrestart; RC=$? ;;

    force-reload) condrestart; RC=$? ;;

    status) status; RC=$? ;;

    *) usage; RC=$? ;;

esac

exit $RC