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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="margin-left:.5in"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Chinmaya Dwibedy [mailto:ckdwibedy@gmail.com]
<br>
<b>Sent:</b> Wednesday, June 08, 2016 7:43 AM<br>
<b>To:</b> openstack@lists.openstack.org<br>
<b>Subject:</b> [Openstack] Issue with dev_type: type-PCI using openstack-mitaka release on host (Cent OS 7.2)<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-left:.5in"><o:p> </o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-left:.5in">Hi All,<o:p></o:p></p>
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<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;margin-left:.5in;background-image:initial;background-repeat:initial">
I want the Ethernet Card to be used for PCI Passthrough device. Note that, I have installed openstack-mitaka release on host (Cent OS 7.2). <o:p></o:p></p>
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<o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
[root@localhost ~(keystone_admin)]# lspci -nn | grep 154d<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
07:00.0 Ethernet controller [0200]: Intel Corporation Ethernet 10G 2P X520 Adapter [8086:154d] (rev 01)<o:p></o:p></p>
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07:00.1 Ethernet controller [0200]: Intel Corporation Ethernet 10G 2P X520 Adapter [8086:154d] (rev 01)<o:p></o:p></p>
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[root@localhost ~(keystone_admin)]#<o:p></o:p></p>
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<o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
Here goes the configurations done in nova.conf <o:p></o:p></p>
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<o:p> </o:p></p>
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pci_alias={"vendor_id":"8086", "product_id":"154d", "device_type":"type-PCI", "name":"a1"}<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
pci_passthrough_whitelist = [{"vendor_id":"8086","product_id":"154d"}]<o:p></o:p></p>
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scheduler_default_filters=RetryFilter,AvailabilityZoneFilter,RamFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,CoreFilter,PciPassthroughFilter<o:p></o:p></p>
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<o:p></o:p></p>
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<o:p></o:p></p>
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<o:p></o:p></p>
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MariaDB [nova]> select pci_stats from compute_nodes;<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
| pci_stats |<o:p></o:p></p>
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+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+<o:p></o:p></p>
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| {"nova_object.version": "1.1", "nova_object.changes": ["objects"], "<a href="http://nova_object.name">nova_object.name</a>": "PciDevicePoolList", "nova_object.data": {"objects": [{"nova_object.version": "1.1", "nova_object.changes": ["count", "numa_node",
"vendor_id", "product_id", "tags"], "<a href="http://nova_object.name">nova_object.name</a>": "PciDevicePool", "nova_object.data": {"count": 2, "numa_node": 0, "vendor_id": "8086", "product_id": "154d", "tags": {"dev_type": "type-PF"}}, "nova_object.namespace":
"nova"}]}, "nova_object.namespace": "nova"} |<o:p></o:p></p>
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+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+<o:p></o:p></p>
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1 row in set (0.00 sec)<o:p></o:p></p>
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<o:p></o:p></p>
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MariaDB [nova]> select count(*) from pci_devices where status="available" and deleted=0;<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
+----------+<o:p></o:p></p>
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| count(*) |<o:p></o:p></p>
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+----------+<o:p></o:p></p>
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| 2 |<o:p></o:p></p>
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+----------+<o:p></o:p></p>
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1 row in set (0.00 sec)<o:p></o:p></p>
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<o:p></o:p></p>
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MariaDB [nova]><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
MariaDB [nova]> SELECT * FROM nova.pci_devices;<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
+---------------------+---------------------+---------------------+---------+----+-----------------+--------------+------------+-----------+----------+------------------+-----------------+-----------+------------+---------------+------------+-----------+-------------+<o:p></o:p></p>
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| created_at | updated_at | deleted_at | deleted | id | compute_node_id | address | product_id | vendor_id | dev_type | dev_id | label | status | extra_info | instance_uuid | request_id | numa_node | parent_addr
|<o:p></o:p></p>
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+---------------------+---------------------+---------------------+---------+----+-----------------+--------------+------------+-----------+----------+------------------+-----------------+-----------+------------+---------------+------------+-----------+-------------+<o:p></o:p></p>
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| 2016-06-07 09:27:49 | 2016-06-08 04:24:46 | NULL | 0 | 3 | 1 | 0000:07:00.0 | 154d | 8086 | type-PF | pci_0000_07_00_0 | label_8086_154d | available | {} | NULL | NULL | 0 | NULL
|<o:p></o:p></p>
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| 2016-06-07 09:27:49 | 2016-06-08 04:24:46 | NULL | 0 | 4 | 1 | 0000:07:00.1 | 154d | 8086 | type-PF | pci_0000_07_00_1 | label_8086_154d | available | {} | NULL | NULL | 0 | NULL
|<o:p></o:p></p>
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+---------------------+---------------------+---------------------+---------+----+-----------------+--------------+------------+-----------+----------+------------------+-----------------+-----------+------------+---------------+------------+-----------+-------------+<o:p></o:p></p>
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4 rows in set (0.00 sec)<o:p></o:p></p>
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<o:p></o:p></p>
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MariaDB [nova]><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
There is a check in Nova ( get_device_type in <a href="https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py">
https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py</a>) that determines if a given PCI device is:<o:p></o:p></p>
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1)<span style="font-size:7.0pt"> </span>A normal PCI device,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
2)<span style="font-size:7.0pt"> </span>An SR-IOV physical function (PF); or<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
3)<span style="font-size:7.0pt"> </span>An SR-IOV virtual function (VF).<o:p></o:p></p>
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If it's a normal PCI device or a virtual function it's considered for passthrough, if it's a PF it's not (considered to be owned by the host/hypervisor).<span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">No, you can passthrough PCI, PF and VF
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
<o:p> </o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
What I understand, currently it is not possible to pass through a physical function to an OpenStack instance. Furthermore I have configured the “device_type”: “type-PCI” as stated above in nova.conf. Then why it shows “dev_type: type-PF” in MariaDB?
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">If you want to passthrough PF you should change the pci_alias to "device_type":"type-PF"<o:p></o:p></p>
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Can anyone please let me know is it a bug in openstack-mitaka release or I have missed anything ? Please feel free to let me know if additional information is needed.
<o:p></o:p></p>
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<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
Regards,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:.5in">
Chinmaya<o:p></o:p></p>
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