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#!/bin/sh

export RTE_SDK=/opt/dpdk
export RTE_TARGET=x86_64-default-linuxapp-gcc
export RTE_ARCH=x86_64
RTE_SRC=/usr/src/dpdk
HUGE_PAGES_MEM=2097152 #[1024 * 2048kB]

#check hugetlbfs mount
echo -n "Mounting hugepages..."
mount | grep "nodev on /mnt/huge type hugetlbfs"
if [ $? -ne 0 ]; then
    mkdir -p /mnt/huge
    mount -t hugetlbfs nodev /mnt/huge
fi
echo "OK!"

#increase hugepages for all nodes
echo -n "Allocating hugepages..."
#get hugepages sizes
hp_sz=`cat /proc/meminfo | grep Hugepagesize | sed -r "s/Hugepagesize:[^0-9]*([0-9]+) kB/\1/"`
#calculate huge pages number to get the equivalent of 1024 pages of 2MB
huge_pages_no=`expr ${HUGE_PAGES_MEM} / ${hp_sz}`
#get hugepages no
hp=0
#Find out if this is a NUMA machine
ls /sys/devices/system/node/node* > /dev/null 2>&1
if [ $? -ne 0 ]; then
    hp=`cat /proc/sys/vm/nr_hugepages`
    hptest=`expr $hp + $huge_pages_no`
    echo $hptest > /proc/sys/vm/nr_hugepages
else
    hparray=()
    nodes=`ls /sys/devices/system/node | grep node | wc -l`
    for (( i=0; $i<$nodes; i++ ))
    do
        hp=`cat /sys/devices/system/node/node${i}/hugepages/hugepages-${hp_sz}kB/nr_hugepages`
        hptest=`expr $hp + $huge_pages_no`
        echo $hptest > /sys/devices/system/node/node${i}/hugepages/hugepages-${hp_sz}kB/nr_hugepages
        hparray+=("$hp")
    done
fi
echo "OK!"
echo "Allocated ${huge_pages_no} x ${hp_sz}kB"

#run l2fwd loopback test
DEVS=("I350" "82599")
PCI_UTIL=${RTE_SRC}/tools/pci_unbind.py
IGB_UIO=${RTE_SDK}/${RTE_TARGET}/kmod/igb_uio.ko
RTE_KNI=${RTE_SDK}/${RTE_TARGET}/kmod/rte_kni.ko

rmmod rte_kni > /dev/null 2>&1
rmmod igb_uio > /dev/null 2>&1
modprobe uio && insmod ${IGB_UIO}

#insert igb_uio, needed by some dpdk tests
if [ $? -ne 0 ]; then
    echo "FAIL: uio/igb_uio load"
    DEVS=()
else
    echo "PASS: uio/igb_uio load"
fi

#insert rte_kni driver in loopback mode, needed by KNI tests
insmod ${RTE_KNI} lo_mode=lo_mode_fifo

if [ $? -ne 0 ]; then
    echo "FAIL: rte_kni load"
    DEVS=()
else
    echo "PASS: rte_kni load"
fi

#bind devices to igb_uio, needed by some dpdk tests
drvarray=()
pciarray=()
for dev in ${DEVS[@]}
do
    DEV_INFO=`${PCI_UTIL} --status|grep ${dev}|grep -v -i 'active'|head -n 1`
    if [ -z "$DEV_INFO" ] || [ "$DEV_INFO" == " " ] ; then
        continue
    fi

    DEV_PCI_ADDR=`echo ${DEV_INFO}|sed -r "s/([^ ]*) .*/\1/"`
    DEV_NAME=`echo ${DEV_INFO}|sed -r "s/.*'(.*)'.*/\1/"`
    DEV_ETH=`echo ${DEV_INFO}|grep eth=|sed -r "s/.*if=([^ ]*).*/\1/"`
    DEV_DRV=`echo ${DEV_INFO}|sed -r "s/.*drv=([^ ]*).*/\1/"`

    echo "Testing device: $DEV_NAME(pci $DEV_PCI_ADDR, eth $DEV_ETH, drv $DEV_DRV)"

    if [ ! -z ${DEV_ETH} ]; then
        ifconfig ${DEV_ETH} down
    fi

    ${PCI_UTIL} --bind=igb_uio ${DEV_PCI_ADDR}
    drvarray+=("${DEV_DRV}")
    pciarray+=("${DEV_PCI_ADDR}")
done

#run dpdk tests
python ${RTE_SRC}/app/test/autotest.py ./test ${RTE_TARGET}

#bind devices to initial drivers
for ((i=0;i<${#pciarray[@]};i++));
do
    echo "${PCI_UTIL} --bind=${drvarray[$i]} ${pciarray[$i]}"
    ${PCI_UTIL} --bind=${drvarray[$i]} ${pciarray[$i]}
done

for dev in ${DEVS[@]}
do
    DEV_INFO=`${PCI_UTIL} --status|grep ${dev}|grep -v -i 'active'|head -n 1`
    if [ -z "$DEV_INFO" ] || [ "$DEV_INFO" == " " ] ; then
        echo "SKIP: l2fwd-lpbk ($dev)"
        continue
    fi

    DEV_PCI_ADDR=`echo ${DEV_INFO}|sed -r "s/([^ ]*) .*/\1/"`
    DEV_NAME=`echo ${DEV_INFO}|sed -r "s/.*'(.*)'.*/\1/"`
    DEV_ETH=`echo ${DEV_INFO}|grep eth=|sed -r "s/.*if=([^ ]*).*/\1/"`
    DEV_DRV=`echo ${DEV_INFO}|sed -r "s/.*drv=([^ ]*).*/\1/"`

    echo "Testing device: $DEV_NAME(pci $DEV_PCI_ADDR, eth $DEV_ETH, drv $DEV_DRV)"

    if [ ! -z ${DEV_ETH} ]; then
        ifconfig ${DEV_ETH} down
    fi

    ${PCI_UTIL} --bind=igb_uio ${DEV_PCI_ADDR}

    ./l2fwd-lpbk -c 0xff -n 2 --use-device=${DEV_PCI_ADDR} -- -p 0x1 -t 128 -s 64 -T 10 -l > ${DEV_PCI_ADDR}.log 2>&1 &
    APP_PID=$!
    sleep 20
    kill $APP_PID

    DEV_SENT=`cat ${DEV_PCI_ADDR}.log|grep "Packets sent:"|tail -n 1|sed -r "s/.* ([0-9]*)/\1/"`
    DEV_RECV=`cat ${DEV_PCI_ADDR}.log|grep "Packets received:"|tail -n 1|sed -r "s/.* ([0-9]*)/\1/"`
    DEV_DROP=`cat ${DEV_PCI_ADDR}.log|grep "Packets dropped:"|tail -n 1|sed -r "s/.* ([0-9]*)/\1/"`


    echo "Results: sent $DEV_SENT, received $DEV_RECV, dropped $DEV_DROP"

    STATUS=0

    case "$dev" in
        "I350")
            if [ ${DEV_SENT} -lt 13000000 ]; then
                STATUS=1
            fi
            ;;
        "82599")
            if [ ${DEV_SENT} -lt 110000000 ]; then
                STATUS=1
            fi
            ;;
    esac

    if [ ${STATUS} -ne 0 ]; then
        echo "FAIL: l2fwd-lpbk (low throughput)"
    fi

    if [ ${STATUS} -eq 0 ] && { [ ${DEV_DROP} -ne 0 ] || [ ${DEV_SENT} -ne ${DEV_RECV} ]; }  then
        echo "FAIL: l2fwd-lpbk (dropped packets)"
        STATUS=1
    fi

    if [ ${STATUS} -eq 0 ]; then
        echo "PASS: l2fwd-lpbk ($dev)"
    fi

    ${PCI_UTIL} --bind=${DEV_DRV} ${DEV_PCI_ADDR}
done

if [ ! -z ${DEVS} ]; then
    rmmod rte_kni > /dev/null 2>&1
    rmmod igb_uio > /dev/null 2>&1
    rmmod uio > /dev/null 2>&1
fi

echo -n "Freeing hugepages..."
#Find out if this is a NUMA machine
ls /sys/devices/system/node/node* > /dev/null 2>&1
if [ $? -ne 0 ]; then
    echo $hp > /proc/sys/vm/nr_hugepages
else
    i=0
    for hp in ${hparray[@]}
    do
        echo $hp > "/sys/devices/system/node/node${i}/hugepages/hugepages-${hp_sz}kB/nr_hugepages"
        ((i++))
    done
fi
echo "OK!"
rm -rf /mnt/huge/*