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|
#!/bin/bash
touch /var/lock/subsys/local
# Waiting for cloud-init to generate $NFVBENCH_CONF, retry 60 seconds
NFVBENCH_CONF=/etc/nfvbenchvm.conf
retry=30
until [ $retry -eq 0 ]; do
if [ -f $NFVBENCH_CONF ]; then break; fi
retry=$[$retry-1]
sleep 2
done
if [ ! -f $NFVBENCH_CONF ]; then
exit 0
fi
# Parse and obtain all configurations
echo "Generating configurations for forwarder..."
eval $(cat $NFVBENCH_CONF)
touch /nfvbench_configured.flag
# WE assume there are at least 2 cores available for the VM
CPU_CORES=$(grep -c ^processor /proc/cpuinfo)
# We need at least 1 admin core.
if [ $CPU_CORES -le 2 ]; then
ADMIN_CORES=1
else
# If the number of cores is even we
# reserve 2 cores for admin (second being idle) so the number of
# workers is either 1 (if CPU_CORES is 2) or always even
if (( $CPU_CORES % 2 )); then
ADMIN_CORES=1
else
ADMIN_CORES=2
fi
fi
# 2 vcpus: AW (core 0: Admin, core 1: Worker)
# 3 vcpus: AWW (core 0: Admin, core 1,2: Worker)
# 4 vcpus: AWWU (core 0: Admin, core 1,2: Worker, core 3: Unused)
# 5 vcpus: AWWWW
# 6 vcpus: AWWWWU
WORKER_CORES=$(expr $CPU_CORES - $ADMIN_CORES)
# worker cores are all cores except the admin core (core 0) and the eventual unused core
# AW -> 1
# AWW -> 1,2
# AWWU -> 1,2
WORKER_CORE_LIST=$(seq -s, $ADMIN_CORES $WORKER_CORES)
# always use all cores
CORE_MASK=0x$(echo "obase=16; 2 ^ $CPU_CORES - 1" | bc)
logger "NFVBENCHVM: CPU_CORES=$CPU_CORES, ADMIN_CORES=$ADMIN_CORES, WORKER_CORES=$WORKER_CORES ($WORKER_CORE_LIST)"
# CPU isolation optimizations
echo 1 > /sys/bus/workqueue/devices/writeback/cpumask
echo 1 > /sys/devices/virtual/workqueue/cpumask
echo 1 > /proc/irq/default_smp_affinity
for irq in `ls /proc/irq/`; do
if [ -f /proc/irq/$irq/smp_affinity ]; then
echo 1 > /proc/irq/$irq/smp_affinity
fi
done
# Isolate all cores that are reserved for workers
tuna -c $WORKER_CORE_LIST --isolate
NET_PATH=/sys/class/net
get_pci_address() {
# device mapping for CentOS Linux 7:
# lspci:
# 00.03.0 Ethernet controller: Red Hat, Inc. Virtio network device
# 00.04.0 Ethernet controller: Red Hat, Inc. Virtio network device
# /sys/class/net:
# /sys/class/net/eth0 -> ../../devices/pci0000:00/0000:00:03.0/virtio0/net/eth0
# /sys/class/net/eth1 -> ../../devices/pci0000:00/0000:00:04.0/virtio1/net/eth1
mac=$1
for f in $(ls $NET_PATH/); do
if grep -q "$mac" $NET_PATH/$f/address; then
pci_addr=$(readlink $NET_PATH/$f | cut -d "/" -f5)
# some virtual interfaces match on MAC and do not have a PCI address
if [ "$pci_addr" -a "$pci_addr" != "N/A" ]; then
# Found matching interface
logger "NFVBENCHVM: found interface $f ($pci_addr) matching $mac"
break
else
pci_addr=""
fi
fi;
done
if [ -z "$pci_addr" ]; then
echo "ERROR: Cannot find pci address for MAC $mac" >&2
logger "NFVBENCHVM ERROR: Cannot find pci address for MAC $mac"
return 1
fi
echo $pci_addr
return 0
}
get_eth_port() {
# device mapping for CentOS Linux 7:
# lspci:
# 00.03.0 Ethernet controller: Red Hat, Inc. Virtio network device
# 00.04.0 Ethernet controller: Red Hat, Inc. Virtio network device
# /sys/class/net:
# /sys/class/net/eth0 -> ../../devices/pci0000:00/0000:00:03.0/virtio0/net/eth0
# /sys/class/net/eth1 -> ../../devices/pci0000:00/0000:00:04.0/virtio1/net/eth1
mac=$1
for f in $(ls $NET_PATH/); do
if grep -q "$mac" $NET_PATH/$f/address; then
eth_port=$(readlink $NET_PATH/$f | cut -d "/" -f8)
# some virtual interfaces match on MAC and do not have a PCI address
if [ "$eth_port" -a "$eth_port" != "N/A" ]; then
# Found matching interface
logger "NFVBENCHVM: found interface $f ($eth_port) matching $mac"
break
else
eth_port=""
fi
fi;
done
if [ -z "$eth_port" ]; then
echo "ERROR: Cannot find eth port for MAC $mac" >&2
logger "NFVBENCHVM ERROR: Cannot find eth port for MAC $mac"
return 1
fi
echo $eth_port
return 0
}
# Set VM MANAGEMENT port up and running
if [ $INTF_MGMT_CIDR ] && [ $INTF_MGMT_IP_GW ]; then
if [ $INTF_MAC_MGMT ]; then
ETH_PORT=$(get_eth_port $INTF_MAC_MGMT)
else
ETH_PORT="eth0"
fi
ip addr add $INTF_MGMT_CIDR dev $ETH_PORT
ip link set $ETH_PORT up
ip route add default via $INTF_MGMT_IP_GW dev $ETH_PORT
else
echo "INFO: VM management IP Addresses missing in $NFVBENCH_CONF"
fi
# Set dynamically interfaces mac values, if VM is spawn without using NFVBench
# and management interface is used on eth0
if [ -z "$INTF_MAC1" ] && [ -z "$INTF_MAC2" ]; then
INTF_MAC1=$(ip l show eth1 | grep -o -Ei '([a-fA-F0-9:]{17}|[a-fA-F0-9]{12}$)' | head -1)
INTF_MAC2=$(ip l show eth2 | grep -o -Ei '([a-fA-F0-9:]{17}|[a-fA-F0-9]{12}$)' | head -1)
fi
# Sometimes the interfaces on the loopback VM will use different drivers, e.g.
# one from vswitch which is virtio based, one is from SRIOV VF. In this case,
# we have to make sure the forwarder uses them in the right order, which is
# especially important if the VM is in a PVVP chain.
if [ $INTF_MAC1 ] && [ $INTF_MAC2 ]; then
PCI_ADDRESS_1=$(get_pci_address $INTF_MAC1)
PCI_ADDRESS_2=$(get_pci_address $INTF_MAC2)
else
echo "ERROR: VM MAC Addresses missing in $NFVBENCH_CONF"
logger "NFVBENCHVM ERROR: VM MAC Addresses missing in $NFVBENCH_CONF"
fi
if [ $PCI_ADDRESS_1 ] && [ $PCI_ADDRESS_2 ]; then
logger "NFVBENCHVM: Using pci $PCI_ADDRESS_1 ($INTF_MAC1)"
logger "NFVBENCHVM: Using pci $PCI_ADDRESS_2 ($INTF_MAC2)"
# Configure the forwarder
if [ "$FORWARDER" == "testpmd" ]; then
echo "Configuring testpmd..."
modprobe uio_pci_generic
mkdir /dpdk
echo "set promisc all off" > /dpdk/testpmd_cmd.txt
# Binding ports to DPDK VFIO or UIO
dpdk-devbind -b vfio-pci $PCI_ADDRESS_1 || dpdk-devbind -b uio_pci_generic $PCI_ADDRESS_1
dpdk-devbind -b vfio-pci $PCI_ADDRESS_2 || dpdk-devbind -b uio_pci_generic $PCI_ADDRESS_2
screen -dmSL testpmd testpmd \
-c $CORE_MASK \
-n 4 \
-- \
--nb-ports=2 \
--burst=32 \
--txd=256 \
--rxd=1024 \
--eth-peer=0,$TG_MAC1 \
--eth-peer=1,$TG_MAC2 \
--forward-mode=mac \
--nb-cores=$WORKER_CORES \
--txq=$VIF_MQ_SIZE \
--rxq=$VIF_MQ_SIZE \
--max-pkt-len=9000 \
--cmdline-file=/dpdk/testpmd_cmd.txt
echo "testpmd running in screen 'testpmd'"
logger "NFVBENCHVM: testpmd running in screen 'testpmd'"
elif [ "$FORWARDER" == "vpp" ]; then
echo "Configuring vpp..."
cp /vpp/startup.conf /etc/vpp/startup.conf
cp /vpp/vm.conf /etc/vpp/vm.conf
sed -i "s/{{PCI_ADDRESS_1}}/$PCI_ADDRESS_1/g" /etc/vpp/startup.conf
sed -i "s/{{PCI_ADDRESS_2}}/$PCI_ADDRESS_2/g" /etc/vpp/startup.conf
sed -i "s/{{WORKER_CORES}}/$WORKER_CORES/g" /etc/vpp/startup.conf
sed -i "s/{{VIF_MQ_SIZE}}/${VIF_MQ_SIZE}/g" /etc/vpp/startup.conf
sed -i "s/{{NUM_MBUFS}}/${NUM_MBUFS}/g" /etc/vpp/startup.conf
service vpp start
sleep 10
INTFS=`vppctl show int | grep Ethernet | xargs`
INTF_1=`echo $INTFS | awk '{ print $1 }'`
INTF_2=`echo $INTFS | awk '{ print $4 }'`
if [ -z "${TG_MAC1}" ]; then
# vm.conf does not support lines commented with #, so
# we need to remove the line to set the static ARP entry.
sed -i "/{{TG_MAC1}}/d" /etc/vpp/vm.conf
else
sed -i "s/{{TG_MAC1}}/${TG_MAC1}/g" /etc/vpp/vm.conf
fi
if [ -z "${TG_MAC2}" ]; then
sed -i "/{{TG_MAC2}}/d" /etc/vpp/vm.conf
else
sed -i "s/{{TG_MAC2}}/${TG_MAC2}/g" /etc/vpp/vm.conf
fi
sed -i "s/{{INTF_1}}/${INTF_1//\//\/}/g" /etc/vpp/vm.conf
sed -i "s/{{INTF_2}}/${INTF_2//\//\/}/g" /etc/vpp/vm.conf
sed -i "s/{{VNF_GATEWAY1_CIDR}}/${VNF_GATEWAY1_CIDR//\//\/}/g" /etc/vpp/vm.conf
sed -i "s/{{VNF_GATEWAY2_CIDR}}/${VNF_GATEWAY2_CIDR//\//\/}/g" /etc/vpp/vm.conf
sed -i "s/{{TG_NET1}}/${TG_NET1//\//\/}/g" /etc/vpp/vm.conf
sed -i "s/{{TG_NET2}}/${TG_NET2//\//\/}/g" /etc/vpp/vm.conf
sed -i "s/{{TG_GATEWAY1_IP}}/${TG_GATEWAY1_IP}/g" /etc/vpp/vm.conf
sed -i "s/{{TG_GATEWAY2_IP}}/${TG_GATEWAY2_IP}/g" /etc/vpp/vm.conf
service vpp restart
logger "NFVBENCHVM: vpp service restarted"
else
echo "ERROR: Unknown forwarder value. Accepted values: testpmd or vpp"
exit 1
fi
else
echo "ERROR: Cannot find PCI Address from MAC"
echo "$INTF_MAC1: $PCI_ADDRESS_1"
echo "$INTF_MAC2: $PCI_ADDRESS_2"
logger "NFVBENCHVM ERROR: Cannot find PCI Address from MAC"
fi
exit 0
|
