[ovs-dev] vhost user cannot recv any packet from VM

[Gray, Mark D]

> 
> 
> Hi,
> 
> I am using the latest ovs code base to try vhost user based on Ciara Loftus's
> patch ("[PATCH v4] netdev-dpdk: add dpdk vhost-user ports" which is not
> in ovs upstream yet).
> 

I think there is a later patch. Can you send the command line that you use?

What happens if you send packet to the VM and capture the packets using
tcpdump?

> things go smoothly during VM bootstrap, as I can see following logs:
> VHOST_CONFIG: new virtio connection is 47
> VHOST_CONFIG: new device, handle is 0
> VHOST_CONFIG: read message VHOST_USER_SET_OWNER
> VHOST_CONFIG: read message VHOST_USER_GET_FEATURES
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL
> VHOST_CONFIG: vring call idx:0 file:48
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL
> VHOST_CONFIG: vring call idx:1 file:49
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL
> VHOST_CONFIG: vring call idx:0 file:50
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_CALL
> VHOST_CONFIG: vring call idx:1 file:48
> VHOST_CONFIG: read message VHOST_USER_SET_FEATURES
> VHOST_CONFIG: (0) Mergeable RX buffers disabled
> VHOST_CONFIG: read message VHOST_USER_SET_MEM_TABLE
> VHOST_CONFIG: mapped region 0 fd:49 to 0x7f6740000000 sz:0xa0000
> off:0x0
> VHOST_CONFIG: REGION: 0 GPA: (nil) QEMU VA: 0x7f7340000000 SIZE
> (655360)
> VHOST_CONFIG: mapped region 1 fd:51 to 0x7f6700000000 sz:0x40000000
> off:0xc0000
> VHOST_CONFIG: REGION: 1 GPA: 0xc0000 QEMU VA: 0x7f73400c0000 SIZE
> (1072955392)
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_NUM
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_BASE
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_ADDR
> VHOST_CONFIG: (0) mapped address desc: 0x7f6739fdc000
> VHOST_CONFIG: (0) mapped address avail: 0x7f6739fdd000
> VHOST_CONFIG: (0) mapped address used: 0x7f6739fde000
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_KICK
> VHOST_CONFIG: vring kick idx:0 file:52
> VHOST_CONFIG: virtio isn't ready for processing.
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_NUM
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_BASE
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_ADDR
> VHOST_CONFIG: (0) mapped address desc: 0x7f6739fb4000
> VHOST_CONFIG: (0) mapped address avail: 0x7f6739fb5000
> VHOST_CONFIG: (0) mapped address used: 0x7f6739fb6000
> VHOST_CONFIG: read message VHOST_USER_SET_VRING_KICK
> VHOST_CONFIG: vring kick idx:1 file:53
> VHOST_CONFIG: virtio is now ready for processing.
> 2015-05-23T04:02:33Z|00001|dpdk(vhost_thread2)|INFO|vHost Device
> '/usr/local/var/run/openvswitch/dpdkvhostuser0' (0) has been added
> 
> However I cannot see any packet was polled afterwards even I generated
> some traffic inside the VM.
> 
> My host and VM are using 3.19.0-15-generic, and qemu 2.2.0 is used.
> 
> Could any one please share any hint?
> 
> Thanks,
> Tim
> _______________________________________________
> dev mailing list
> dev at openvswitch.org
> http://openvswitch.org/mailman/listinfo/dev