[rdo-list] Issue with assigning multiple VFs to VM instance
Chinmaya Dwibedy
ckdwibedy at gmail.com
Thu Jun 16 12:12:14 UTC 2016
Hi All,
I have installed open-stack openstack-mitaka release on CentO7 system . It
has two Intel QAT devices. There are 32 VF devices available per QAT
Device/DH895xCC device.
[root at localhost nova(keystone_admin)]# lspci -nn | grep 0435
83:00.0 Co-processor [0b40]: Intel Corporation DH895XCC Series QAT
[8086:0435]
88:00.0 Co-processor [0b40]: Intel Corporation DH895XCC Series QAT
[8086:0435]
[root at localhost nova(keystone_admin)]# cat
/sys/bus/pci/devices/0000\:88\:00.0/sriov_numvfs
32
[root at localhost nova(keystone_admin)]# cat
/sys/bus/pci/devices/0000\:83\:00.0/sriov_numvfs
32
[root at localhost nova(keystone_admin)]#
Changed the nova configuration (as stated below) for exposing VF ( via
PCI-passthrough) to the instances.
pci_alias = {"name": "QuickAssist", "product_id": "0443", "vendor_id":
"8086", "device_type": "type-VF"}
pci_passthrough_whitelist = [{"vendor_id":"8086","product_id":"0443"}}]
Restarted the nova compute, nova API and nova scheduler service
service openstack-nova-compute restart;service openstack-nova-api
restart;systemctl restart openstack-nova-scheduler;
scheduler_available_filters=nova.scheduler.filters.all_filters
scheduler_default_filters=RamFilter,ComputeFilter,AvailabilityZoneFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,PciPassthroughFilter
Thereafter it shows all the available VFs (64) in nova database upon
select * from pci_devices. Set the flavor 4 to allow passing two VFs to
instances.
[root at localhost nova(keystone_admin)]# nova flavor-show 4
+----------------------------+------------------------------------------------------------+
| Property |
Value |
+----------------------------+------------------------------------------------------------+
| OS-FLV-DISABLED:disabled |
False |
| OS-FLV-EXT-DATA:ephemeral |
0 |
| disk | 80
|
| extra_specs | {"pci_passthrough:alias": "QuickAssist:2"} |
| id |
4 |
| name |
m1.large |
| os-flavor-access:is_public |
True |
| ram |
8192 |
| rxtx_factor |
1.0 |
| swap
| |
| vcpus |
4 |
+----------------------------+------------------------------------------------------------+
[root at localhost nova(keystone_admin)]#
Also when I launch an instance using this new flavor, it goes into an
error state
nova boot --flavor 4 --key_name oskey1 --image
bc859dc5-103b-428b-814f-d36e59009454 --nic
net-id=e2ca118d-1f25-47de-8524-bb2a2635c4be TEST
Here goes the output of nova-conductor.log
2016-06-16 07:55:34.640 5094 WARNING nova.scheduler.utils
[req-6189d3c8-5587-4350-8cd3-704fd35cf2ad 266f5859848e4f39b9725203dda5c3f2
4bc608763cee41d9a8df26d3ef919825 - - -] Failed to
compute_task_build_instances: No valid host was found. There are not enough
hosts available.
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py",
line 150, in inner
return func(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/nova/scheduler/manager.py", line
104, in select_destinations
dests = self.driver.select_destinations(ctxt, spec_obj)
File
"/usr/lib/python2.7/site-packages/nova/scheduler/filter_scheduler.py", line
74, in select_destinations
raise exception.NoValidHost(reason=reason)
NoValidHost: No valid host was found. There are not enough hosts available.
Here goes the output of nova-compute.log
2016-06-16 07:57:32.502 170789 INFO nova.compute.resource_tracker
[req-4529a2a8-390f-4620-98b3-d3eb77e077a3 - - - - -] Total usable vcpus:
36, total allocated vcpus: 16
2016-06-16 07:57:32.502 170789 INFO nova.compute.resource_tracker
[req-4529a2a8-390f-4620-98b3-d3eb77e077a3 - - - - -] Final resource view:
name=localhost phys_ram=128721MB used_ram=33280MB phys_disk=49GB
used_disk=320GB total_vcpus=36 used_vcpus=16
pci_stats=[PciDevicePool(count=0,numa_node=0,product_id='10fb',tags={dev_type='type-PF'},vendor_id='8086'),
PciDevicePool(count=63,numa_node=1,product_id='0443',tags={dev_type='type-VF'},vendor_id='8086')]
2016-06-16 07:57:33.803 170789 INFO nova.compute.resource_tracker
[req-4529a2a8-390f-4620-98b3-d3eb77e077a3 - - - - -] Compute_service record
updated for localhost:localhost
Here goes the output of nova-scheduler.log
2016-06-16 07:55:34.636 171018 WARNING nova.scheduler.host_manager
[req-6189d3c8-5587-4350-8cd3-704fd35cf2ad 266f5859848e4f39b9725203dda5c3f2
4bc608763cee41d9a8df26d3ef919825 - - -] Host localhost has more disk space
than database expected (-141 GB > -271 GB)
2016-06-16 07:55:34.637 171018 INFO nova.filters
[req-6189d3c8-5587-4350-8cd3-704fd35cf2ad 266f5859848e4f39b9725203dda5c3f2
4bc608763cee41d9a8df26d3ef919825 - - -] Filter PciPassthroughFilter
returned 0 hosts
2016-06-16 07:55:34.638 171018 INFO nova.filters
[req-6189d3c8-5587-4350-8cd3-704fd35cf2ad 266f5859848e4f39b9725203dda5c3f2
4bc608763cee41d9a8df26d3ef919825 - - -] Filtering removed all hosts for the
request with instance ID '4f68c680-5a17-4a38-a6df-5cdb6d76d75b'. Filter
results: ['RamFilter: (start: 1, end: 1)', 'ComputeFilter: (start: 1, end:
1)', 'AvailabilityZoneFilter: (start: 1, end: 1)',
'ComputeCapabilitiesFilter: (start: 1, end: 1)', 'ImagePropertiesFilter:
(start: 1, end: 1)', 'PciPassthroughFilter: (start: 1, end: 0)']
2016-06-16 07:56:14.743 171018 INFO nova.scheduler.host_manager
[req-64a8dc31-f2ab-4d93-8579-6b9f8210ece7 - - - - -] Successfully synced
instances from host 'localhost'.
2016-06-16 07:58:17.748 171018 INFO nova.scheduler.host_manager
[req-152ac777-1f77-433d-8493-6cd86ab3e0fc - - - - -] Successfully synced
instances from host 'localhost'.
Note that, If I set the flavor as (#nova flavor-key 4 set
"pci_passthrough:alias"="QuickAssist:1") , it assigns a single VF to VM
instance. I think, multiple PFs can be assigned per VM. Can anyone please
suggest , where I am wrong and the way to solve this ? Thank you in advance
for your support and help.
Regards,
Chinmaya
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