Re: [Qemu-devel] [wiki] New wiki page - vhost-user setup with ovs/dpdk backend

[Marcel Apfelbaum]

On 09/22/2015 08:43 AM, Star Chang wrote:
> Thanks Marcel!!!
>
> After tailing the logs and basic troubleshooting, we finally can have 2 VMs to 
> ping to each other. One dpdkvhostuser interface is for each VM and we have to 
> new add flows based on dpdkvhostuser ofport
> numbers.

Hi,

Good to hear this!
If you think I should add something to the wiki please do tell.

> Another issue we might post it to proper mail loop is that we run pktgen-dpdk 
> 2.9.1 inside of VM but no packets counted from pktgen terminal display. It is 
> so weird that we only see 128 tx packets
> bursted out and then nothing is continue working. After that, we try to dump-flows via 
> ovs-ofctl utility but it shows "connection refued". I am not sure have any one 
> of you guys ideas here? Thanks!!!

I am sorry but my OVS knowledge is rather limited. I think this is a question 
for the OVS mailing list.

Thanks,
Marcel

> Bridge "ovsbr0"
>
> Port "ovsbr0"
>
> Interface "ovsbr0"
>
> type: internal
>
> Port "dpdk1"
>
> Interface "dpdk1"
>
> type: dpdk
>
> Port "dpdk0"
>
> Interface "dpdk0"
>
> type: dpdk
>
> Port "vhost-user1"
>
> Interface "vhost-user1"
>
> type: dpdkvhostuser
>
> Port "vhost-user0"
>
> Interface "vhost-user0"
>
> type: dpdkvhostuser
>
>
> On Tue, Sep 22, 2015 at 2:34 AM, Marcel Apfelbaum <address@hidden 
> <mailto:address@hidden>> wrote:
>
>     On 09/21/2015 11:25 AM, Marcel Apfelbaum wrote:
>
>         On 09/21/2015 08:01 AM, Star Chang wrote:
>
>             Hi Marcel:
>
>             Many thanks for you to contribute wiki page in how to configuring 
> vhost-user type with openvsitch/qemu in VM environment.
>
>             We bring 2 VMs up with vhost-user type. We can see eth0 interfaces 
> created in 2 VMs with proper mac address we assign. After IP address 
> assignment, 2 VMs could not PING to each other when
>             they are in
>             the same subnet. There are not packets at all in count when running 
> ovs-ofctl dump-ports :(
>
>             However, we check link up state via ovs-ofctl utility but LINK_DOWN 
> as below. Have any one with experiences and give some helps … Thanks!!
>
>
>         Hi,
>
>         I would look into OVS log for specific issues:
>
>              journalctl  --since `date +%T --date="-10 minutes"`
>
>         The above command will show you the last 10 minutes log.
>         You are welcomed to show us the log.
>
>
>     I forgot to CC the list.
>
>     Thanks,
>     Marcel
>
>
>         Thanks,
>         Marcel
>
>             $ sudo ./utilities/ovs-ofctl show ovsbr0
>             OFPT_FEATURES_REPLY (xid=0x2): dpid:00000670da615e4a
>             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(vhost-user1): addr:00:00:00:00:00:00
>             config: PORT_DOWN
>             state: LINK_DOWN
>             speed: 0 Mbps now, 0 Mbps max
>             2(vhost-user2): addr:00:00:00:00:00:00
>             config: PORT_DOWN
>             state: LINK_DOWN
>             speed: 0 Mbps now, 0 Mbps max
>             LOCAL(ovsbr0): addr:06:70:da:61:5e:4a
>             config: PORT_DOWN
>             state: LINK_DOWN
>             current: 10MB-FD COPPER
>             speed: 10 Mbps now, 0 Mbps max
>             OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
>
>
>
>             Thanks,
>             Star
>
>             --
>             The future belongs to those who believe in the beauty of their 
> dreams.
>
>
>
>
>
>
>
> --
> The future belongs to those who believe in the beauty of their dreams.