Re: [dpdk-dev] Vhost-User port not work and always show 'down'

["Zhou, Danny" <danny.zhou@intel.com>]

Suggest you post this question to Openvswitch.org.

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of wenxu
> Sent: Tuesday, August 04, 2015 5:52 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] Vhost-User port not work and always show 'down'
> 
> Hi  all,
> 
> 
> I build a ovs-dpdk and vhost-user POC through INSTALL.DPDK.md.
> 
> There is a br0 with dpdk0 and vhost-user-0
> I build dpdk with 2.0.0 and ovs with branch 2.4
> # ovs-vsctl show
> ovs-vsctl show
> c38093a7-6c7e-4d6a-a7c1-627d95acbdc6
>     Bridge "br0"
>         Port "br0"
>             Interface "br0"
>                 type: internal
>         Port "vhost-user-0"
>             Interface "vhost-user-0"
>                 type: dpdkvhostuser
>         Port "dpdk0"
>             Interface "dpdk0"
>                 type: dpdk
> 
> I setup a virtual machine succesfully. qemu version is 2.3.0 which is ok for vhost-user
> 
> # qemu-system-x86_64 -smp 2 -m 1024 -hda ubuntu.img -vnc :1 -chardev
> socket,id=char1,path=/usr/local/var/run/openvswitch/vhost-user-0 -netdev
> type=vhost-user,id=mynet1,chardev=char1,vhostforce -device virtio-net-pci,mac=22:33:44:55:66:77,netdev=mynet1 -object
> memory-backend-file,id=mem,size=1024M,mem-path=/dev/hugepages,share=on -numa node,memdev=mem -mem-prealloc
> 
> qemu-system-x86_64: -netdev type=vhost-user,id=mynet1,chardev=char1,vhostforce: chardev "char1" went up
> 
> I set the br0 10.0.0.2/24 and virtual machine eth0 10.0.0.1/24
> But they can't ping each other
> 
> # ovs-ofctl dump-flows br0
> NXST_FLOW reply (xid=0x4):
>  cookie=0x0, duration=79598.075s, table=0, n_packets=445, n_bytes=27204, idle_age=0, hard_age=65534, priority=0
> actions=NORMAL
> 
> # ovs-vsctl list interface vhost-user-0
> _uuid               : ca02a658-3f7f-4133-8b3c-cfc776154d38
> admin_state         : down
> bfd                 : {}
> bfd_status          : {}
> cfm_fault           : []
> cfm_fault_status    : []
> cfm_flap_count      : []
> cfm_health          : []
> cfm_mpid            : []
> cfm_remote_mpids    : []
> cfm_remote_opstate  : []
> duplex              : []
> error               : []
> external_ids        : {}
> ifindex             : 0
> ingress_policing_burst: 0
> ingress_policing_rate: 0
> lacp_current        : []
> link_resets         : 1
> link_speed          : []
> link_state          : down
> lldp                : {}
> mac                 : []
> mac_in_use          : "00:00:00:00:00:00"
> mtu                 : 1500
> name                : "vhost-user-0"
> ofport              : 4
> ofport_request      : []
> options             : {}
> other_config        : {}
> statistics          : {rx_packets=0, tx_dropped=36, tx_packets=0}
> status              : {}
> type                : dpdkvhostuser
> 
> I  can see the vhost-user-0 port always show down and there are some dropped packets which are sent from br0.
> 
> Are there some wrong with my POC?
> 
> BR
> Xu Wen
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