| Posted | Nick | Remark | |
|---|---|---|---|
| #openstack-nova - 2023-10-10 | |||
| 15:06:37 | bauzas | ah | |
| 15:06:44 | bauzas | shit indeed | |
| 15:07:00 | bauzas | -ETOOMANYTHINGSTODOATSAME | |
| 15:09:34 | bauzas | dansmith: sean-k-mooney: we need the parent address to know which GPU this is using | |
| 15:10:10 | dansmith | I think sean-k-mooney was implying that these devices don't have a pci parent | |
| 15:12:31 | bauzas | https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L8029 | |
| 15:12:45 | bauzas | yeah, but I guess those devices have a parent fortunately | |
| 15:13:19 | bauzas | from what I can read, the parent is "virtual'" | |
| 15:13:47 | bauzas | https://docs.kernel.org/driver-api/vfio-mediated-device.html#directories-and-files-under-the-sysfs-for-each-physical-device | |
| 15:14:14 | bauzas | actually, no, its name is "mtty" | |
| 15:14:19 | bauzas | https://github.com/torvalds/linux/tree/master/samples/vfio-mdev#using-the-mtty-vfio-mdev-sample-code | |
| 15:14:53 | bauzas | so, somehow we would need to modify nova to say "meh, if the pci address is "mtty", don't change it" | |
| 15:29:45 | sean-k-mooney | dansmith: correct it wont create a pci device | |
| 15:30:13 | sean-k-mooney | bauzas: yep something like that i was thinig of a centinal like "virtual" | |
| 15:30:20 | sean-k-mooney | instead of allowing any string | |
| 15:30:41 | bauzas | should be something easy | |
| 15:30:54 | bauzas | we have a few things to change, but that may work | |
| 15:31:14 | bauzas | provided we indeed have some kind of global attribute | |
| 15:31:21 | sean-k-mooney | i looke at the code a while ago we only realy use this for the placement rp name | |
| 15:31:27 | bauzas | we key dicts on pci address | |
| 15:31:43 | bauzas | but 'virtual' or whatever else (say mtty) works | |
| 15:31:48 | sean-k-mooney | yep so we just need a hashable key which cna be the mdev_type | |
| 15:31:55 | bauzas | no | |
| 15:32:06 | sean-k-mooney | well thats what mtty would be | |
| 15:32:09 | bauzas | https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L7976 | |
| 15:32:19 | bauzas | we key types per pci device | |
| 15:32:39 | bauzas | but this can be "for mtty those are the types it supports'" | |
| 15:32:44 | sean-k-mooney | yes but i dont think you understaood what i was suggesting | |
| 15:33:10 | bauzas | my bad then | |
| 15:33:29 | sean-k-mooney | basiclly when we see virtual for the pci adress on the config i was suggeting we generate a identify such as virtual_<mdev-type> | |
| 15:33:46 | sean-k-mooney | to use everywhere we actully woudl use the pci adress | |
| 15:33:55 | bauzas | ah | |
| 15:34:08 | bauzas | well, technically the virtual device has N possible types | |
| 15:34:11 | sean-k-mooney | but we could just leave it as a stirng and see on this is not a real pci adres just pass it as is | |
| 15:34:36 | sean-k-mooney | ya it does and unlike some hardware | |
| 15:34:36 | bauzas | for config options, we can just leave it to be 'virtual' | |
| 15:34:42 | sean-k-mooney | they are consumable indepently i belive | |
| 15:35:03 | bauzas | we just parse the option here https://github.com/openstack/nova/blob/master/nova/virt/libvirt/driver.py#L7971 | |
| 15:35:14 | bauzas | but I guess we can accept if it's the global attribute name | |
| 15:35:21 | bauzas | that said, nothing to be documented | |
| 15:35:23 | sean-k-mooney | bauzas: for what tis worht the parent of the device is libvirt is going to be the root device | |
| 15:38:22 | bauzas | sean-k-mooney: well, if I'm relying on sysfs, this is unfortunately 'mtty' if the path is /sys/devices/virtual/mtty/mtty/ | |
| 15:38:38 | bauzas | https://docs.kernel.org/driver-api/vfio-mediated-device.html#directories-and-files-under-the-sysfs-for-each-physical-device | |
| 15:39:49 | sean-k-mooney | yes | |
| 15:40:01 | sean-k-mooney | the mtty module only create 1 virtual device | |
| 15:40:07 | sean-k-mooney | so it will by mtty | |
| 15:40:25 | sean-k-mooney | that also why i suggested using virtual as the placeholder :) | |
| 15:41:06 | sean-k-mooney | so we could use virtual/mtty/mtty or simial as the place holder but i didnt really want to fully log the thing to the sys layout | |
| 15:41:41 | sean-k-mooney | when using the netdev sim module for vdpa | |
| 15:41:52 | sean-k-mooney | you can have it create muplie virutal devices | |
| 15:42:09 | sean-k-mooney | i guess we can keep it simple and just start with one | |
| 15:43:31 | bauzas | yeah, I don't disagree with you | |
| 15:53:37 | bauzas | doh, forgot the reminder and the agenda | |
| 15:53:46 | bauzas | reminder: nova meeting in 6 mins | |
| 15:53:48 | bauzas | her. | |
| 15:53:50 | bauzas | here. | |
| 16:00:13 | bauzas | #startmeeting nova | |
| 16:00:13 | opendevmeet | Meeting started Tue Oct 10 16:00:13 2023 UTC and is due to finish in 60 minutes. The chair is bauzas. Information about MeetBot at http://wiki.debian.org/MeetBot. | |
| 16:00:13 | opendevmeet | Useful Commands: #action #agreed #help #info #idea #link #topic #startvote. | |
| 16:00:13 | opendevmeet | The meeting name has been set to 'nova' | |
| 16:00:24 | bauzas | #link https://wiki.openstack.org/wiki/Meetings/Nova#Agenda_for_next_meeting | |
| 16:00:37 | bauzas | hello everyone, a bit busy today but let's run it quickly | |
| 16:00:40 | elodilles | o/ | |
| 16:00:43 | han-guangyu | o/ | |
| 16:01:03 | gmann | o/ | |
| 16:01:51 | bauzas | ok, I guess we can softly start | |
| 16:02:09 | bauzas | #topic Bugs (stuck/critical) | |
| 16:02:17 | bauzas | #info No Critical bug | |
| 16:02:23 | bauzas | #link https://bugs.launchpad.net/nova/+bugs?search=Search&field.status=New 46 new untriaged bugs (+2 since the last meeting) | |
| 16:02:38 | bauzas | #info Add yourself in the team bug roster if you want to help https://etherpad.opendev.org/p/nova-bug-triage-roster | |
| 16:02:45 | bauzas | melwitt: around ? | |
| 16:03:23 | Uggla | o/ | |
| 16:04:11 | gibi | o~ | |
| 16:04:31 | gibi | I did not manage to look at bugs. Sorry | |
| 16:05:46 | bauzas | np | |
| 16:07:16 | bauzas | okay let's continue | |
| 16:08:24 | bauzas | #info bug baton is melwitt | |
| 16:08:29 | bauzas | #info https://bugs.launchpad.net/nova/+bug/2026345 failed for nova few times. | |
| 16:09:46 | bauzas | #topic Gate status | |
| 16:10:24 | bauzas | #link https://bugs.launchpad.net/nova/+bugs?field.tag=gate-failure Nova gate bugs | |
| 16:10:31 | bauzas | #link https://zuul.openstack.org/builds?project=openstack%2Fnova&project=openstack%2Fplacement&pipeline=periodic-weekly Nova&Placement periodic jobs status | |
| 16:11:01 | bauzas | #info Please look at the gate failures and file a bug report with the gate-failure tag. | |
| 16:11:53 | bauzas | anything to discuss ? | |
| 16:12:19 | bauzas | looks not | |
| 16:12:24 | bauzas | #topic Release Planning | |
| 16:12:29 | bauzas | #link https://releases.openstack.org/caracal/schedule.html | |
| 16:12:34 | bauzas | #info Nova deadlines are not yet defined and will be once the PTG happens | |
| 16:12:37 | bauzas | #info Caracal-1 milestone in 5 weeks | |
| 16:12:49 | bauzas | again, any questions so far , | |
| 16:12:51 | bauzas | ? | |
| 16:13:12 | sean-k-mooney | nope | |
| 16:13:32 | bauzas | continuing so | |
| 16:13:37 | bauzas | #topic Caracal vPTG planning | |
| 16:13:40 | bauzas | #info Sessions will be held virtually October 23-27 | |
| 16:13:44 | bauzas | #info Register yourselves on https://ptg2023.openinfra.dev/ even if the event is free | |
| 16:13:47 | bauzas | #link https://etherpad.opendev.org/p/nova-caracal-ptg PTG etherpad | |
| 16:13:51 | bauzas | #info add your own topics into the above etherpad if you want them to be discussed at the PTG | |
| 16:13:55 | bauzas | that's it | |
| 16:14:12 | bauzas | we already have a few topics, thanks folks who added them | |
| 16:14:20 | bauzas | but please continue to add some if you want | |