Bug 1313264
| Summary: | direct interface with multiqueue enabled donesn't support hotplugging | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Shanzhi Yu <shyu> |
| Component: | libvirt | Assignee: | Michal Privoznik <mprivozn> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.3 | CC: | dyuan, mzhan, rbalakri, yalzhang |
| Target Milestone: | rc | Keywords: | Upstream |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | libvirt-1.3.3-1.el7 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-11-03 18:38:37 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Patch is upstream:
commit 751033a2e4af5197e56f5f3fc1e327b8d83f2f1a
Author: Shanzhi Yu <shyu>
AuthorDate: Fri Feb 26 15:02:46 2016 +0800
Commit: Michal Privoznik <mprivozn>
CommitDate: Tue Mar 1 16:16:58 2016 +0100
qemu: enalbe hotplugging of macvtap device with multiqueue
in commit 81a110, multiqueue for macvtap is enabled but forget
to support hotplugging enabled
Signed-off-by: Shanzhi Yu <shyu>
v1.3.2-50-g751033a
This bug was accidentally moved from POST to MODIFIED via an error in automation, please see mmccune with any questions Verified on libvirt-1.3.3-1.el7.x86_64, the result is as expected.
# virsh start rhel7.2
Domain rhel7.2 started
# cat tmp.xml
<interface type='direct'>
<source dev='eth0' mode='bridge'/>
<model type='virtio'/>
<driver name='vhost' queues='2'/>
</interface>
# virsh attach-device rhel7.2 tmp.xml
Device attached successfully
# virsh dumpxml rhel7.2 | grep /interface -B8
<interface type='direct'>
<mac address='52:54:00:66:ca:0a'/>
<source dev='eth0' mode='bridge'/>
<target dev='macvtap0'/>
<model type='virtio'/>
<driver name='vhost' queues='2'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
check on the guest:
# ethtool -l eth0
Channel parameters for eth0:
Pre-set maximums:
RX: 0
TX: 0
Other: 0
Combined: 2
Current hardware settings:
RX: 0
TX: 0
Other: 0
Combined: 1
# ethtool -L eth0 combined 2
# ethtool -l eth0
Channel parameters for eth0:
Pre-set maximums:
RX: 0
TX: 0
Other: 0
Combined: 2
Current hardware settings:
RX: 0
TX: 0
Other: 0
Combined: 2
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2016-2577.html |
Description of problem: direct interface with multiqueue enabled donesn't support hotplugging Version-Release number of selected component (if applicable): libvirt-1.3.1-1.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. Prepare a running guest # virsh list Id Name State ---------------------------------------------------- 4 rh7 running 2. Prepare xml file as below # cat interface.xml <interface type='direct'> <source network='net-bridge-bridge' dev='enp2s0' mode='bridge'/> <model type='virtio'/> <driver name='vhost' queues='2'/> </interface> 3. Do interface hotplug # virsh attach-device rh7 interface.xml error: Failed to attach device from interface.xml error: unsupported configuration: Multiqueue network is not supported for: direct Actual results: Expected results: support direct interface with multiqueue enabled plugging Additional info: patch post to upstream.