On Thursday 07 April 2016 06:31 PM, lifuqiong wrote:
Dear All,
I am facing the same problem as
http://openvswitch.org/pipermail/discuss/2015-August/018439.html; But
the thread seems not to be solved , can someone help me?
Thank you.
1.
Ovs version : 2.5.0
One precautionary warning as I see 2.5.0 is to check out it from service
br (branch-2.5)
and continue your work. Recently, vhost user send path to guest is fixed
for min one txq.
Thanks,
Gowrishankar
Dpdk version: 2.2.0
Qemu verion : 2.2.1
vm ips are 192.168.0.93/24 and 192.168.0.91/24; os is Centos 6.7
x86_64; kernel is 2.6.32
host os is Ubuntu 14.04.2 kernel is 3.16.
host cat /etc/network/interface
auto lo
iface lo inet loopback
# The primary network interface
#auto p1p1
#iface p1p1 inet dhcp
auto p3p1
iface p3p1 inet dhcp
auto p1p1
iface p1p1 inet manual
up ifconfig $IFACE 0.0.0.0 up
down ifconfig $IFACE down
auto br0
iface br0 inet dhcp
2. Ovs-vsctl show:
root@host152:/# ovs-vsctl show
18f23a8a-6ce3-49c4-9068-fe4aa6cc735b
Bridge "br0"
Port "br0"
Interface "br0"
type: internal
Port "dpdk0"
Interface "dpdk0"
type: dpdk
Port "vhost-user1"
Interface "vhost-user1"
type: dpdkvhostuser
Port "vhost-user2"
Interface "vhost-user2"
type: dpdkvhostuser
3.Create vm using qemu as follows:
qemu-system-x86_64 -m 1024 -smp 1 -cpu host -hda /root/vm12.qcow2
-boot c -enable-kvm -no-reboot -net none -vnc 0.0.0.0:2 -chardev
socket,id=char2,path=/usr/local/var/run/openvswitch/vhost-user2
-netdev type=vhost-user,id=mynet2,chardev=char2,vhostforce -device
virtio-net-pci,mac=02:00:00:00:02:22,netdev=mynet2 -object
memory-backend-file,id=mem,size=1024M,mem-path=/dev/hugepages,share=on
-numa node,memdev=mem -mem-prealloc -d exec -name vm12
qemu-system-x86_64: -netdev
type=vhost-user,id=mynet2,chardev=char2,vhostforce: chardev "char2"
went up
4.$DPDK_DIR/tools/dpdk_nic_bind.py --status
Network devices using DPDK-compatible driver
============================================
0000:01:00.0 '82575EB Gigabit Network Connection' drv=vfio-pci unused=
0000:01:00.1 '82575EB Gigabit Network Connection' drv=vfio-pci unused=
Network devices using kernel driver
===================================
0000:03:00.0 'RTL8111/8168/8411 PCI Express Gigabit Ethernet
Controller' if=p3p1 drv=r8169 unused=vfio-pci *Active*
Other network devices
=====================
<none>
5.ovs-ofctl dump-flows br0
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=8084.244s, table=0, n_packets=264, n_bytes=11088,
idle_age=320, in_port=2 actions=output:3
cookie=0x0, duration=8078.359s, table=0, n_packets=228, n_bytes=9576,
idle_age=1, in_port=3 actions=output:2
6. ovs-ofctl show br0
OFPT_FEATURES_REPLY (xid=0x2): dpid:00002c534a01cd5e
n_tables:254, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan
mod_dl_src mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src
mod_tp_dst
1(dpdk0): addr:2c:53:4a:01:cd:5e
config: 0
state: 0
current: 100MB-FD
speed: 100 Mbps now, 0 Mbps max
2(vhost-user1): addr:00:00:00:00:00:00
config: PORT_DOWN
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
3(vhost-user2): addr:00:00:00:00:00:00
config: PORT_DOWN
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
LOCAL(br0): addr:2c:53:4a:01:cd:5e
config: 0
state: 0
current: 10MB-FD COPPER
speed: 10 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
You mentioneid that“After tailing the logs and basic troubleshooting, we
finally can have 2 VMs to ping to each other.” Do you mean ovs log
ovs-vswitchd.log?
I can’t find anything not normal;
root@host152:/# tail /usr/local/var/log/openvswitch/ovs-vswitchd.log
2016-04-07T08:43:51.319Z|00062|memory|INFO|15600 kB peak resident set size
after 10.1 seconds
2016-04-07T08:43:51.319Z|00063|memory|INFO|handlers:2 ports:4 revalidators:2
rules:5 udpif keys:9
2016-04-07T08:45:29.225Z|00001|dpdk(vhost_thread2)|INFO|vHost Device
'/usr/local/var/run/openvswitch/vhost-user2' 0 has been added
2016-04-07T08:50:50.133Z|00064|connmgr|INFO|br0<->unix: 1 flow_mods in the last
0 s (1 deletes)
2016-04-07T08:50:57.794Z|00065|connmgr|INFO|br0<->unix: 1 flow_mods in the last
0 s (1 adds)
2016-04-07T08:51:03.180Z|00066|connmgr|INFO|br0<->unix: 1 flow_mods in the last
0 s (1 adds)
2016-04-07T10:07:44.938Z|00002|dpdk(vhost_thread2)|INFO|vHost Device
'/usr/local/var/run/openvswitch/vhost-user1' 1 has been added
2016-04-07T10:36:55.613Z|00067|connmgr|INFO|br0<->unix: 1 flow_mods in the last
0 s (1 deletes)
2016-04-07T10:37:13.825Z|00068|connmgr|INFO|br0<->unix: 1 flow_mods in the last
0 s (1 adds)
2016-04-07T10:37:19.710Z|00069|connmgr|INFO|br0<->unix: 1 flow_mods in the last
0 s (1 adds)
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