Hi All,
I am configuring OVS-DPDK with multiple queues with vhost-user. I am using
below packages,
OVS --- Branch 2.6
DPDK --- 16.07
OVS Configuration :
ovs-vsctl --no-wait add-br br0 -- set bridge br0 datapath_type=netdev
ovs-vsctl --no-wait add-port br0 dpdk0 -- set Interface dpdk0 type=dpdk
ofport_request=1
ovs-vsctl --no-wait add-port br0 dpdk1 -- set Interface dpdk1 type=dpdk
ofport_request=2
ovs-vsctl --no-wait add-port br0 vhost-user-1 -- set Interface vhost-user-1
type=dpdkvhostuser ofport_request=3
ovs-vsctl set Open_vSwitch . other_config:pmd-cpu-mask=C
ovs-vsctl set Interface dpdk0 options:n_rxq=2
ovs-vsctl set Interface dpdk1 options:n_rxq=2
ovs-vsctl set Interface vhost-user0 options:n_rxq=2
ovs-ofctl del-flows br0
Flow 1: ovs-ofctl add-flow br0 in_port=1,action=set_queue=0,output:3 -O
openflow13
Flow 2: ovs-ofctl add-flow br0 in_port=2,action=set_queue=1,output:3 -O
openflow13
Flow 3: ovs-ofctl add-flow br0 in_port=3,action=output:1 -O openflow13
Qemu command:
qemu-system-x86_64 -cpu host -smp 5,cores=5 -hda vhost-user.img -m 4096M
--enable-kvm -object
memory-backend-file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on -numa
node,memdev=mem -mem-prealloc -chardev
socket,id=char1,path=/usr/local/var/run/openvswitch/vhost-user0 -netdev
type=vhost-user,id=mynet1,chardev=char1,vhostforce,queues=2 -device
virtio-net-pci,mac=00:00:00:00:00:01,netdev=mynet1,mq=on,vectors=6
Inside VM (Running test-pmd) application:
./testpmd -c 0x1F -n 4 --socket-mem 1024 -- --burst=64 -i --txqflags=0xf00
--dissable-hw-vlan --rxq=2 --txq=2 --nb-cores=4
set stat_qmap rx 0 0 0
set stat_qmap rx 0 1 1
set stat_qmap tx 0 0 0
set stat_qmap tx 0 1 1
start
Issue: When I start sending traffic from external traffic generator, as per my
requirement traffic should flow as below,
Port 1 --- Port 3 (q0-rx --- q0--tx) --- port 1
Port 2 ----Port 3 (q1-rx --- q1--tx) --- port 1
But in the test PMD statistics I could see all traffic on q0 only. As per my
flow 2, port 2 traffic should be mapped to q1 inside VM.
When I configure multi queues using n_rxq option, Inside vswitchd logs I could
see below warning,
dpdk|WARN|Failed to enable flow control on device 0
show port stats 0
testpmd> show port stats 0
######################## NIC statistics for port 0 ########################
RX-packets: 20 RX-errors: 0 RX-bytes:
1200
RX-errors: 0
RX-nombuf: 0
TX-packets: 20 TX-errors: 0 TX-bytes:
1200
Stats reg 0 RX-packets: 20 RX-errors: 0 RX-bytes:
1200
Stats reg 1 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 2 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 3 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 4 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 5 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 6 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 7 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 8 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 9 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 10 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 11 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 12 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 13 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 14 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Stats reg 15 RX-packets: 0 RX-errors: 0 RX-bytes:
0
Throughput (since last show)
Rx-pps: 0
Tx-pps: 0
############################################################################
Please let me know whether I am configuring anything wrong, which causes the
incorrect queue mapping.
And what will be the configuration I have follow in order to define flows for
multi queue mapping. How can efficiently make use of all queues inside VM using
ovs-ofctl shows.
Also I would like to know is there any OVS CLI to display multi queue
statistics(rx/tx counters).
Thanks in Advance,
Regards,
Gayathri
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