#!/bin/sh
# -*- sh -*-
#
# Wildcard-plugin to monitor cxgbe NIC filter counters.
#
#    ln -s /usr/local/share/munin/plugins/chelsio_filters_  /usr/local/etc/munin/plugins/chelsio_filters_t5nex0
#
# Magic markers (optional - used by munin-config and some installation
# scripts):
#
#%# family=auto
#%# capabilities=autoconf suggest

NEXUS=${0##*chelsio_filters_}
CXGBETOOL="/usr/sbin/cxgbetool"

if [ "$1" = "autoconf" ]; then
	if [ -x ${CXGBETOOL} ]; then
		echo yes
		exit 0
	else
		echo "no (${CXGBETOOL} not found)"
		exit 0
	fi
fi

if [ "$1" = "suggest" ]; then
        NXLIST=`sysctl dev.t5nex | grep "hw_revision" | awk -F'.' '{print $3}' | sort -n`
        if [ $? -eq 0 ]
	then
                for i in ${NXLIST}; do
                    echo "t5nex${i}"
                done
		exit 0
	else
		exit 1
	fi
fi

# we need $NEXUS for "config" and values
if [ -z ${NEXUS} ]; then
    echo "please run from appropriate symlink"
    exit 1
fi

if [ "$1" = "config" ]; then

        FILTERS=`${CXGBETOOL} ${NEXUS} filter list | awk 'BEGIN{OFS=""} /\//{print $13,"_" ,$1}'`
	echo "graph_title $NEXUS hits per second"
	echo 'graph_args --base 1000'
	echo 'graph_vlabel hits per ${graph_period} in (-) / out (+)'
	echo 'graph_category network'
	echo "graph_info This graph shows the filter list hit count for the $INTERFACE network interface."

        for F in ${FILTERS}; do
    	    echo "${F}.label hit/sec"
	    echo "${F}.type COUNTER"
	    echo "${F}.draw LINE2"
	    echo "${F}.min 0"
            echo "${F}.info Number of packets hit the rule (${F}) on the $INTERFACE NIC."
        done

	exit 0
fi

${CXGBETOOL} ${NEXUS} filter list | awk 'BEGIN{OFS=""} /\//{print $13,"_" ,$1, ".value " , $2}'