How odd. The Kernel is the first thing I upgraded, here's the output of "uname -r": 3.10.9 I searched for IFF_MULTI_QUEUE in /usr/include/linux/if_tun.h and indeed it wasn't there. I believe Kernel 3.10 should support the Multi Queue, do I need to recompile it? maybe change its config file? -----Original Message----- From: Michal Privoznik [mailto:mprivozn@redhat.com] Sent: Thursday, August 29, 2013 9:28 AM To: Naor Shlomo Cc: libvir-list@redhat.com Subject: Re: [libvirt] Libvirt multi queue support On 29.08.2013 08:07, Naor Shlomo wrote:
Hi Michal
First of all thanks for your reply.
I followed your advice and the guideline you sent and did the following:
<interface type='bridge'> <mac address='52:54:00:43:6e:3f'/> <source bridge='clients'/> <model type='virtio'/> <driver name='vhost' queues='5'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </interface>
virsh version reports the following:
Compiled against library: libvirt 1.1.1 Using library: libvirt 1.1.1 Using API: QEMU 1.1.1 Running hypervisor: QEMU 1.5.2
When I tried starting the machine I received the following:
error: Failed to start domain NaorDev error: unsupported configuration: Multiqueue devices are not supported on this system
Could you please tell what am I missing?
Thanks, Naor
Your kernel does not support MQ yet. You need to update the kernel. The support can be checked by executing: grep IFF_MULTI_QUEUE /usr/include/linux/if_tun.h (so maybe you'll need to update the linux-headers package as well). Anyway, the MQ support has been introduced to kernel in the 3.8 release (even though the docs were introduced in 3.9). Michal