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| thorst_ | svenkat efried: say we want to contain VF direct attach to VM in Newton | 12:56 |
|---|---|---|
| thorst_ | I kinda want that for the SDN use case. Would be awesome to deploy a network node to a VM with a direct attach VF | 12:56 |
| thorst_ | super performance | 12:56 |
| thorst_ | how would we tell the system that the VIF type is direct VF and that it has to be promisc? | 12:56 |
| thorst_ | (it obviously is not Live Migratable) | 12:57 |
| svenkat | sure. it wiill be vif driver work. but we should be able to differentiate between direct vs vnic via vif_type | 12:57 |
| thorst_ | what sets vif_type? | 12:58 |
| thorst_ | I thought that was the ML2 binding... | 12:58 |
| svenkat | let me look at sea scenario | 12:58 |
| thorst_ | I think the difference here svenkat is that the same agent is providing two different VIF types. I'm not really sure that the neutron agent does anything different...I thought it was mostly the nova vif driver needed to do something different. | 12:59 |
| svenkat | yes. plug should branch off between direct vs vnic and my understanding is that it can be done via vif type. (another branching wiill happen between vnic type direct vs normal (sea)) | 13:00 |
| svenkat | it think the question is how vif_type is set | 13:01 |
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| svenkat | in the case of sea it is pvm_sea, thorst_ are you saying it is done during port binding? | 13:01 |
| thorst_ | svenkat: I'm confused. How do you tell that a 'direct' neutron port is either direct VF or vnic? | 13:01 |
| svenkat | the answer is vif_type. it is the key to differentiate. if this cannot be set, we need to find a new way | 13:03 |
| thorst_ | that is what tells you it is 'SR-IOV'. We need a sub-specification | 13:03 |
| thorst_ | what flavor of SR-IOV | 13:03 |
| thorst_ | I think efried mentioned earlier perhaps the extra_specs... | 13:03 |
| svenkat | ok… flavor extra specs | 13:04 |
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| svenkat | shall we explore using binding:vif_details attribute of neutron port as well for vif type ? (before getting into flavor extra specs) | 13:36 |
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| thorst_ | svenkat: have a link to where that is defined? | 13:41 |
| svenkat | i am looking for more details on it… | 13:41 |
| thorst_ | esberglu: so I kicked off four CI runs on Friday and they took like 2 hours or so | 13:52 |
| thorst_ | which surprised me... | 13:53 |
| thorst_ | I was hoping since it was only two hosts it wouldn't take so long | 13:53 |
| openstackgerrit | Merged openstack/nova-powervm: Save valid udid on pre_live_migration of vscsi volumes using multi VIOS https://review.openstack.org/336783 | 14:01 |
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| esberglu | thorst: Better than the 4 hour runs I guess? I’m just starting to look into the logs | 14:14 |
| thorst_ | true...true | 14:14 |
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| openstackgerrit | Eric Berglund proposed openstack/nova-powervm: DNM: ci check https://review.openstack.org/328315 | 16:03 |
| openstackgerrit | Carl Pecinovsky proposed openstack/nova-powervm: WIP: Handle stale system metadata https://review.openstack.org/321816 | 16:27 |
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| thorst_ | efried: +2 on 3556 | 17:19 |
| efried | thank you sir. | 17:19 |
| efried | thorst_, Check out 3566 | 17:19 |
| thorst_ | efried: seems reasonable | 17:22 |
| thorst_ | I don't like how MTU is handled there...but...meh | 17:22 |
| efried | Oh? | 17:22 |
| efried | What about it? | 17:22 |
| thorst_ | tests and what not are needed. | 17:22 |
| thorst_ | I just don't think I like MTU on SR-IOV? I think it has to be 1500 or 9000? | 17:22 |
| efried | Yes, those are the possible values. | 17:22 |
| efried | There's an enum. | 17:22 |
| thorst_ | but not 7000 | 17:23 |
| thorst_ | which is also a valid MTU | 17:23 |
| efried | thorst_: The enum only has 1500 and 9000. The API isn't validating against the enum - we'll let the REST server do that. Similar to almost all of our other setters. | 17:24 |
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| thorst_ | efried: o right...not an issue with your code | 17:36 |
| thorst_ | I just don't like it | 17:36 |
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| mdrabe | thorst or anyone willing to ponder, would it be possible to shelve an instance running on a libvirt node and unshelve it (or just cold migrate, or even evacuate) to a powervm node? | 20:04 |
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| mdrabe | thorst_ | 20:07 |
| mdrabe | ^^ | 20:07 |
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| thorst_ | mdrabe: not possible | 20:16 |
| thorst_ | we'd be missing the powervm boot partition | 20:16 |
| seroyer | mdrabe: Generally no. Images built for Opal/KVM generally do not have the PReP partition on the disk, which means that PowerVM cannot boot it. | 20:16 |
| mdrabe | thorst: So the instance just won't boot | 20:16 |
| mdrabe | but it could still move without a hitch? | 20:16 |
| thorst_ | mdrabe: semantics...that's a pretty big 'hitch' that it won't boot | 20:17 |
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