> -----Original Message-----
> From: discuss [mailto:discuss-boun...@openvswitch.org] On Behalf Of Ali
> Volkan Atli
> Sent: Thursday, December 3, 2015 7:39 AM
> To: discuss@openvswitch.org
> Subject: [ovs-discuss] DPDK vhost-user socket problem for QEMU
>
> Hi all
>
> I followed the INSTALL and INSTALL.DPDK docs but when I try to attach a vhost
> port to QEMU VM, I'm getting the error:
>
> argela@argela-HP-Z800-Workstation:~$ sudo qemu-system-x86_64 -cpu host -
> boot c -hda qemu_images/Fedora-Cloud-Base-23-20151030.x86_64.qcow2 -snapshot
> -m 1024M -smp 2 --enable-kvm -vnc :1 -net user,hostfwd=tcp::10022-:22 -net
> nic -chardev socket,id=char0,path=/usr/local/var/run/openvswitch/vhost-user-0
> -netdev type=vhost-user,id=mynet0,chardev=char0,vhostforce -device virtio-
> net-pci,mac=00:00:00:00:00:01,netdev=mynet0 -chardev
> socket,id=char1,path=/usr/local/var/run/openvswitch/vhost-user-1 -netdev
> type=vhost-user,id=mynet1,chardev=char1,vhostforce -device virtio-net-
> pci,mac=00:00:00:00:00:02,netdev=mynet1 -object memory-backend-
> file,id=mem,size=4096M,mem-path=/dev/hugepages,share=on -numa node,memdev=mem
> -mem-prealloc
> qemu-system-x86_64: -chardev
> socket,id=char0,path=/usr/local/var/run/openvswitch/vhost-user-0: Failed to
> connect socket: Connection refused
>
> argela@argela-HP-Z800-Workstation:~$ ll
> /usr/local/var/run/openvswitch/vhost-user*
> srwxr-xr-x 1 root root 0 Ara 1 15:59
> /usr/local/var/run/openvswitch/vhost-user-0
> srwxr-xr-x 1 root root 0 Ara 1 15:59
> /usr/local/var/run/openvswitch/vhost-user-1
>
> Actually I'm getting related errors for the vhost users while starting ovs-
> vswitchd as follows
>
> argela@argela-HP-Z800-Workstation:~$ sudo ovs-vswitchd --dpdk -c 0x1 -n 4
> --socket-mem 1024,0 -- unix:$DB_SOCK --pidfile --detach
> 2015-12-03T07:08:57Z|00001|dpdk|INFO|No -vhost_sock_dir provided -
> defaulting to /usr/local/var/run/openvswitch
> ...
> VHOST_CONFIG: socket created, fd:48
> VHOST_CONFIG: fail to bind fd:48, remove
> file:/usr/local/var/run/openvswitch/vhost-user-1 and try again.
Maybe the code you are using does not have the below commit? Try
removing the file manually before re-running.
commit e04f7e4f2f574500334326dbda1bb808cf25c721
Author: Ciara Loftus <ciara.lof...@intel.com>
Date: Wed Oct 21 14:50:36 2015 +0100
netdev-dpdk: Clean-up after vHost User port delete
Unregister and delete the socket associated with a vhost-user
port when the port is deleted and/or the switch is brought down.
Do not delete the socket if the vhost-user device is still attached
to the guest.
> 2015-12-03T07:09:15Z|00021|dpdk|ERR|vhost-user socket device setup
> failure for socket /usr/local/var/run/openvswitch/vhost-user-1
> 2015-12-03T07:09:15Z|00022|dpdk|INFO|Socket
> /usr/local/var/run/openvswitch/vhost-user-1 created for vhost-user port
> vhost-user-1
> 2015-12-03T07:09:15Z|00003|dpif_netdev(pmd16)|INFO|Core 0 processing port
> 'dpdk1'
> 2015-12-03T07:09:15Z|00004|dpif_netdev(pmd16)|INFO|Core 0 processing port
> 'vhost-user-1'
> 2015-12-03T07:09:15Z|00023|bridge|INFO|bridge br0: added interface vhost-
> user-1 on port 4
> VHOST_CONFIG: socket created, fd:48
> VHOST_CONFIG: fail to bind fd:48, remove
> file:/usr/local/var/run/openvswitch/vhost-user-0 and try again.
> 2015-12-03T07:09:15Z|00024|dpdk|ERR|vhost-user socket device setup
> failure for socket /usr/local/var/run/openvswitch/vhost-user-0
> 2015-12-03T07:09:15Z|00025|dpdk|INFO|Socket
> /usr/local/var/run/openvswitch/vhost-user-0 created for vhost-user port
> vhost-user-0
> 2015-12-03T07:09:15Z|00005|dpif_netdev(pmd16)|INFO|Core 0 processing port
> 'vhost-user-0'
> 2015-12-03T07:09:15Z|00006|dpif_netdev(pmd16)|INFO|Core 0 processing port
> 'dpdk1'
> 2015-12-03T07:09:15Z|00007|dpif_netdev(pmd16)|INFO|Core 0 processing port
> 'vhost-user-1'
> 2015-12-03T07:09:15Z|00026|bridge|INFO|bridge br0: added interface vhost-
> user-0 on port 3
> ...
>
> argela@argela-HP-Z800-Workstation:~$ sudo ovs-vsctl show
> a0ba4b74-4412-45ba-a8ab-fea39afbf10f
> Bridge "br0"
> Port "vhost-user-1"
> Interface "vhost-user-1"
> type: dpdkvhostuser
> Port "dpdk0"
> Interface "dpdk0"
> type: dpdk
> Port "br0"
> Interface "br0"
> type: internal
> Port "vhost-user-0"
> Interface "vhost-user-0"
> type: dpdkvhostuser
> Port "dpdk1"
> Interface "dpdk1"
> type: dpdk
>
>
> What am I doing wrong? Thanks in advance..
>
> - Volkan
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