Update I see in log file the following error msgs .. libvirtd[1734]: Failed to open file '/sys/class/net/tap0/operstate': No such file or directory libvirtd[1734]: unable to read: /sys/class/net/tap0/operstate: No such file or directory kernel: [ 38.948590] IPv6: ADDRCONF(NETDEV_UP): tap0: link is not ready
> -----Original Message----- > From: Avi Cohen (A) > Sent: Tuesday, 20 June, 2017 12:41 PM > To: 'ovs-discuss@openvswitch.org'; 'us...@dpdk.org' > Subject: OVS-DPDK - TAP0 - vdev (af_packet) device is linkdown > > Hello All, > > I did upgrade to dpdk-17.05 and ovs-2-7.1 and create a vdev - af_packet > device according the config script below This tap device connects the ovs- > dpdk to a name space The problem is that this tap00 device is linkdown - > (never reach RUNNING state ) - hence no pkt is received transmitted on this > interface although the tap0 creation in ovs is OK, I'm attaching the config > script and output of netstat and ifconfig in the namespace Can someone > please tell me how to activate the tap0 ? > > Config script : > > > cd ../dpdk-17.05/usertools/ > modprobe uio > insmod ../x86_64-native-linuxapp-gcc/kmod/igb_uio.ko > ifconfig ens3 down > > ./dpdk-devbind.py --bind=igb_uio 0000:00:03.0 ./dpdk-devbind.py --status > > cd - > > pkill -9 ovs > rm -rf /usr/local/var/run/openvswitch > rm -rf /usr/local/etc/openvswitch/ > rm -f /usr/local/etc/openvswitch/conf.db > mkdir -p /usr/local/etc/openvswitch > mkdir -p /usr/local/var/run/openvswitch > > > ./ovsdb/ovsdb-tool create /usr/local/etc/openvswitch/conf.db > ./vswitchd/vswitch.ovsschema ./ovsdb/ovsdb-server -- > remote=punix:/usr/local/var/run/openvswitch/db.sock -- > remote=db:Open_vSwitch,Open_vSwitch,manager_options --pidfile --detach > ./utilities/ovs-vsctl --no-wait init > > echo 8192 > /sys/devices/system/node/node0/hugepages/hugepages- > 2048kB/nr_hugepages > echo 8192 > /sys/devices/system/node/node1/hugepages/hugepages- > 2048kB/nr_hugepages > > mkdir -p /mnt/huge > mkdir -p /mnt/huge_2mb > mount -t hugetlbfs none /mnt/huge_2mb -o pagesize=2MB > > modprobe openvswitch > export DB_SOCK=/usr/local/var/run/openvswitch/db.sock > > ./utilities/ovs-vsctl --no-wait set Open_vSwitch . other_config:dpdk-init=true > ./vswitchd/ovs-vswitchd unix:$DB_SOCK --pidfile --detach ./utilities/ovs-vsctl > set Open_vSwitch . other_config:pmd-cpu-mask=0x80 > > > > utilities/ovs-vsctl --may-exist add-br br-int \ > -- set Bridge br-int datapath_type=netdev \ > -- br-set-external-id br-int bridge-id br-int \ > -- set bridge br-int fail-mode=standalone > > > > ip tuntap add dev tap0 mode tap > > ovs-vsctl add-port br-int tap0 -- set Interface tap0 type=dpdk \ > options:dpdk-devargs=eth_af_packet0,iface=tap0 > > > > ip netns add red > ip link set tap0 netns red > ip netns exec red ip addr add 1.1.1.20/24 dev tap0 ip netns exec red ip link > set > tap0 up > > > > > utilities/ovs-vsctl --may-exist add-port br-int vxlan0 \ > -- set interface vxlan0 type=vxlan options:remote_ip=172.31.100.44 > options:key=1000 > > > > > utilities/ovs-vsctl --may-exist add-br br-phy \ > -- set Bridge br-phy datapath_type=netdev \ > -- br-set-external-id br-phy bridge-id br-phy \ > -- set bridge br-phy fail-mode=standalone \ > other_config:hwaddr=02:d7:d1:26:84:e5 > > > utilities/ovs-vsctl --timeout 10 --may-exist add-port br-phy dpdk0 -- set > Interface dpdk0 type=dpdk options:dpdk-devargs=0000:00:03.0 > > > > > ip addr add 172.31.100.80/24 dev br-phy > > > > ip link set br-phy up > ip link set br-int up > iptables -F > > > utilities/ovs-appctl ovs/route/show > > > ip netns exec red bash > ifconfig lo up > > ################################# > netstat -v -s -e > Ip: > 7 total packets received > 0 forwarded > 0 incoming packets discarded > 7 incoming packets delivered > 14 requests sent out > Icmp: > 7 ICMP messages received > 0 input ICMP message failed. > ICMP input histogram: > destination unreachable: 7 > 14 ICMP messages sent > 0 ICMP messages failed > ICMP output histogram: > destination unreachable: 7 > echo request: 7 > IcmpMsg: > InType3: 7 > OutType3: 7 > OutType8: 7 > Tcp: > 0 active connections openings > 0 passive connection openings > 0 failed connection attempts > 0 connection resets received > 0 connections established > 0 segments received > 0 segments send out > 0 segments retransmited > 0 bad segments received. > 0 resets sent > Udp: > 0 packets received > 0 packets to unknown port received. > 0 packet receive errors > 0 packets sent > UdpLite: > TcpExt: > 0 packet headers predicted > IpExt: > InOctets: 784 > OutOctets: 1372 > InNoECTPkts: 7 > root@ip-172-31-100-80:/home/ubuntu/openvswitch-2.7.0# ifconfig > lo Link encap:Local Loopback > inet addr:127.0.0.1 Mask:255.0.0.0 > inet6 addr: ::1/128 Scope:Host > UP LOOPBACK RUNNING MTU:65536 Metric:1 > RX packets:7 errors:0 dropped:0 overruns:0 frame:0 > TX packets:7 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1 > RX bytes:784 (784.0 B) TX bytes:784 (784.0 B) > > tap0 Link encap:Ethernet HWaddr 1a:ef:3c:87:d7:67 > inet addr:1.1.1.20 Bcast:0.0.0.0 Mask:255.255.255.0 > UP BROADCAST PROMISC MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > Best Regards > > avi > > > > > _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
