[rdo-list] Issue with assigning multiple VFs to VM instance

Alon Dotan alon.dotan at hpe.com
Tue Jun 21 07:40:42 UTC 2016


any particular reason not using neutron api with port-create?
any how can you add the output of lspci -tvn ?



------------------------------------------------------------------------

*From:* Chinmaya Dwibedy
*Sent:* Tuesday, June 21, 2016 10:32AM
*To:* Dotan, Alon
*Cc:* Rdo-list
*Subject:* Re: [rdo-list] Issue with assigning multiple VFs to VM instance


Hi Alon,

Thank you for your response.

I am using Nova flavor definition.  But  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-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. Getting issue when I try to assign  multiple VFs  per VM. Can 
you please suggest , where I am wrong and the way to solve this ?


Regards,

Chinmaya


On Tue, Jun 21, 2016 at 9:21 AM, Dotan, Alon <alon.dotan at hpe.com 
<mailto:alon.dotan at hpe.com>> wrote:

    Which method you are using?

    Neutron sriov plugin? Nova (via flavor definition)? Neutron without
    sriov plugin (which I think is the best)

    Thanks,

    *From:*rdo-list-bounces at redhat.com
    <mailto:rdo-list-bounces at redhat.com>
    [mailto:rdo-list-bounces at redhat.com
    <mailto:rdo-list-bounces at redhat.com>] *On Behalf Of *Chinmaya Dwibedy
    *Sent:* Monday, June 20, 2016 14:53
    *To:* rdo-list at redhat.com <mailto:rdo-list at redhat.com>
    *Subject:* Re: [rdo-list] Issue with assigning multiple VFs to VM
    instance

    Hi ,

    Can anyone please suggest how to assign multiple VF devices to
    VM instance using open-stack openstack-mitaka release? Thank you in
    advance for your time and support.

    Regards,

    Chinmaya

    On Thu, Jun 16, 2016 at 5:42 PM, Chinmaya Dwibedy
    <ckdwibedy at gmail.com <mailto:ckdwibedy at gmail.com>> wrote:

        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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