representer without OVS offload

gistfile1.txt

#!/bin/bash
PF1=eth2
VFREP1=eth4
VFREP2=eth5
VF1=eth6
VF2=eth7

NS1=ns1
NS2=ns2
NS3=ns3
NS4=ns4

SF1=enp8s0f0s88
SF2=enp8s0f0s99
SFREP1=en8f0pf0sf88
SFREP2=en8f0pf0sf99


setup_dev_ns()
{
        ns=$1
        vfdev=$2
        ip=$3

        ip netns del $ns || true
        ip netns add $ns
        ip link set dev $vfdev netns $ns
        ip netns exec $ns ifconfig $vfdev ${ip}/24 up
        ip netns exec $ns iperf3 -s  -u -D
        ip netns exec $ns iperf3 -s -D
        ip netns exec $ns netserver
}

test_dpdk()
{
        ip netns exec $NS1 bash
# don't use "--txonly-multi-flow"
echo 1280 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages
dpdk-testpmd -l 0-3 --socket-mem=512  -a 0000:08:00.2 -- -i --nb-cores=1 --forward-mode=txonly \
--eth-peer=0,b8:3f:d2:ba:65:9e --txpkts=64 --txq=1 --rxq=1 --stats-period=1 --txonly-multi-flow \
--total-num-mbufs=2048
        exit

}

setup_ovs()
{
        /usr/share/openvswitch/scripts/ovs-ctl stop
        rm -f /etc/openvswitch/conf.db

        echo 2 > /sys/class/net/$PF1/device/sriov_numvfs
        python2 /usr/bin/mlx_fs_dump -d 0000:08:00.0 > /root/net-next/fdb.txt
        /usr/share/openvswitch/scripts/ovs-ctl start
        ovs-vsctl set Open_vSwitch . other_config:hw-offload=false 
        # need to restart OVS
        ovs-vsctl add-br ovsbr0
        ovs-vsctl add-port ovsbr0 $PF1
        ovs-vsctl add-port ovsbr0 $VFREP1
        ovs-vsctl add-port ovsbr0 $VFREP2
        #ethtool -L $PF1 combined 2 # mlx5e_napi_poll busy=true
        echo "bring up device" > /dev/kmsg
        ip link set dev $PF1 up

        #ethtool -L $VFREP1 combined 2
        ip link set dev $VFREP1 up
        ip link set dev $VFREP2 up

        setup_dev_ns $NS1 $VF1 192.167.111.1
        setup_dev_ns $NS2 $VF2 192.167.111.2

        ip netns exec $NS1 arp -s 192.167.111.2 d2:a0:5f:ad:a4:e4
        ip netns exec $NS1 ip link set dev eth6 addr 66:0f:91:31:0a:89
        ip netns exec $NS2 arp -s 192.167.111.1 66:0f:91:31:0a:89
        ip netns exec $NS2 ip link set dev eth7 addr d2:a0:5f:ad:a4:e4
        #ip netns exec $NS1 iperf -c 192.167.111.2 -t5 -i1
        ip netns exec $NS1 ping -i .05 -c10 192.167.111.2
        ip netns exec $NS2 ping -i .05 -c10 192.167.111.1
        ip netns exec $NS1 iperf3 -u -b10G -c 192.167.111.2 -t1 -i1
        ip netns exec $NS1 iperf3 -c 192.167.111.2 -t2 -i1
}

devlink dev eswitch set pci/0000:08:00.0 mode switchdev
setup_ovs