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#openstack-cyborg - 2026-06-16
14:15:17 jgilaber nothing from me either
14:15:33 rlandy moving on ...
14:15:37 jgilaber no new bugs either
14:15:49 rlandy let's go to the open discussion ...
14:15:57 rlandy #topic - Open
14:16:20 rlandy #topic - meeting times
14:16:38 rlandy current meeting time is 2pm UTC
14:16:56 rlandy do we want to keep this time slot?
14:17:07 rlandy might depend on other meeting commitments
14:17:58 skovili i thought there was a proposal to move to Wednesday?
14:18:06 sean-k-mooney so we may want to decied if we want a fixed time of alternate but i think we can move it later
14:18:13 rlandy that is one option
14:19:21 sean-k-mooney that was orgianly for our intella plannign meeting
14:19:35 sean-k-mooney for the upstream irc meeting we can dicuss it on the channle or mailing list
14:20:09 sean-k-mooney but i suggest we start a mail thread for the new itme
14:20:21 sean-k-mooney and then if we agree then lets update teh offical meeting page
14:20:32 sean-k-mooney and try and diceedn by next week
14:20:55 chandankumar or may be use doodle to get a new timing and other's preference
14:21:07 chandankumar with the mail thread
14:21:17 sean-k-mooney yep
14:21:18 rlandy ack
14:21:30 rlandy #agreed decide new meeting time off line (mailing list/chat/doodle)
14:21:46 rlandy anything else for Open Discussion?
14:22:50 sean-k-mooney not form me i think we can keep this one short
14:23:13 rlandy ok .. let's go to the last topic
14:23:18 rlandy Volunteers to chair next meeting
14:23:30 rlandy anyone wants to chair next week?
14:23:58 sean-k-mooney i can if no one else wants too
14:24:07 rlandy thank you sean-k-mooney
14:24:16 rlandy that's it for this week
14:24:20 rlandy thank you all
14:24:31 opendevmeet Log: https://meetings.opendev.org/meetings/cyborg_irc_meeting_16_june_2026/2026/cyborg_irc_meeting_16_june_2026.2026-06-16-14.01.log.html
14:24:31 opendevmeet Minutes (text): https://meetings.opendev.org/meetings/cyborg_irc_meeting_16_june_2026/2026/cyborg_irc_meeting_16_june_2026.2026-06-16-14.01.txt
14:24:31 opendevmeet Minutes: https://meetings.opendev.org/meetings/cyborg_irc_meeting_16_june_2026/2026/cyborg_irc_meeting_16_june_2026.2026-06-16-14.01.html
14:24:31 opendevmeet Meeting ended Tue Jun 16 14:24:31 2026 UTC. Information about MeetBot at http://wiki.debian.org/MeetBot . (v 0.1.4)
14:24:31 rlandy #endmeeting
14:26:37 sean-k-mooney chandankumar: rlandy do ye want to create the doodle/thread or will i?
14:27:25 sean-k-mooney once we decied ot move or not move the meeting the final action woudl be to update the offical meeting time in the repo adn update the mail thread with the selected time
15:48:07 opendevreview Merged openstack/cyborg master: Remove broken image signature verification https://review.opendev.org/c/openstack/cyborg/+/991027
#openstack-cyborg - 2026-06-17
04:45:31 rlandy doodle created
12:37:38 chandankumar sean-k-mooney: Hello, feel free to merge https://review.opendev.org/q/topic:%22pci-sim%22, it looks from my end.
12:39:28 sean-k-mooney i was just posting a repsoce and basiclly asking if we were ok to investiage the things you noted once the inital patch was merged
12:40:01 sean-k-mooney so ok im not imitdaly seeign the reason the second pf didnt have vfs in your env
12:40:18 sean-k-mooney but its someitng ill do more testing with when i starte trying to use this in tempest
12:41:58 sean-k-mooney i have not really done baremental testing with this yet so there may be quirks that need to be worked out such as investiatign if we can supprot a mix of fake and realy device passhtough at the same time
12:41:59 chandankumar sounds good to investigate further on that
12:42:50 chandankumar But let;s get this series merge, it is too big to carry
12:43:26 sean-k-mooney the other thing that im condierign is addign a few debuging script to the devstack jobs, basically running lspci or virsh nodedev list as a post run playbook to collect soem extra host info for debugging later
12:43:47 chandankumar good idea, I will give a try with mix and see how it looks
12:43:51 chandankumar +1
12:44:30 sean-k-mooney so with intel_iommu=off sriov and normal pci passhtough wont work
12:44:49 sean-k-mooney but if you set it to intel_iommu=on and iommu=pt
12:44:51 sean-k-mooney it might
12:45:25 sean-k-mooney https://github.com/torvalds/linux/blob/master/Documentation/admin-guide/kernel-parameters.txt#L2533
12:46:05 sean-k-mooney ther is also noforce or soft we could explre fore the mixed case
12:47:08 chandankumar ah thank you for the link, it has so many options
12:47:31 sean-k-mooney ya, iommu=pt is what we use for dpdk and sriov on the same host
12:47:41 sean-k-mooney so i dont knwo if that woudl make it work
12:47:51 sean-k-mooney its somethign we can investigate in any case
12:48:11 sean-k-mooney for first party ci we wont have the mixed case so this is more for local dev
12:49:31 sean-k-mooney oh looks like intremap defualt ot on if the intel_iommu=on
12:50:12 sean-k-mooney if we figure out a combinaiton that works we can docuement it
12:52:31 chandankumar sure
12:54:48 sean-k-mooney https://paste.opendev.org/show/bYiLthWNUfK7OclB7HqW/
12:54:55 sean-k-mooney that what nova is seing in ci by the way
12:55:11 sean-k-mooney so it is seeing the VFs on boht pfs
12:55:40 sean-k-mooney so im wonderinf if the is a short widnwos where tha tcan race or if it was somehtign local on your system form a prior run
12:55:55 sean-k-mooney one thin i tmay be is that i have not test with only cyborg enabeld and multiple pfs
12:56:07 sean-k-mooney so that the first time im goign to investigate
12:56:20 sean-k-mooney i have been testign with the pfs split between nova and cyborg
12:56:45 sean-k-mooney were you only allcoating them to cybrog locally.
12:57:37 chandankumar ENABLE_PCI_SIM=True
12:57:39 chandankumar # pci-sim topology: 2 fake PFs, 4 VFs each.
12:57:42 chandankumar # With both integrations enabled, PF0 VFs go to Nova and PF1 VFs to Cyborg.
12:57:43 chandankumar PCI_SIM_NUM_PFS=2
12:57:45 chandankumar PCI_SIM_NUM_VFS=4
12:57:47 chandankumar PCI_SIM_CONFIGURE_NOVA_PCI=True
12:57:49 chandankumar PCI_SIM_CONFIGURE_CYBORG_PCI=True
12:57:51 chandankumar PCI_SIM_ALLOW_UNSAFE_INTERRUPTS=True
12:58:04 sean-k-mooney ok that what i ws testing with as well
12:58:27 sean-k-mooney still i can build out some test cases for the diffent option adn see what breaks
12:59:04 chandankumar The error I hit earier while enabling cyborg then I hit while enabling both nova and cyborg
13:05:22 sean-k-mooney chandankumar: so my current todo list for that moduel was add the ablity to create mdevs, add the ablity to emulate an e1000 nic adn then possibel add the ablity to emulate an nvme device
13:05:52 sean-k-mooney the secodn two are more asperationall but i think ti woudl be possibel to do by reusing some of the nvmevirt work
13:06:26 sean-k-mooney but im not currently willing to commit to the latter in a short itme frame becasue that is very non tirival
13:07:03 sean-k-mooney addign the ablity for the PFs to supprot mdpy mdevs shoudl be realitivly simple
13:07:28 sean-k-mooney emulating a nic that works enough for neturon sriov testing is somewhere in between
13:07:44 sean-k-mooney we dont stricly need that but it is simpler then pretending to be a nvme device
13:31:29 chandankumar nmvevirt has no iommu group support On which I am kind of blocked to see nvme with in the guest . From pci-sim work, I think i can reuse some of your work to add the support there
13:32:23 chandankumar or I can do opposite, take some of the work from nvmevirt and add it into pci-sim
13:32:29 chandankumar But I need to think on that
13:33:02 chandankumar on another note, I was writting some tests to validate cyborg placemnt workflow with pci scenario test https://review.opendev.org/c/openstack/cyborg-tempest-plugin/+/992210 it might be useful
13:33:23 chandankumar I will update my above review with pci-sim work for the tempest tests
13:33:26 chandankumar brb
13:46:51 sean-k-mooney oh cool
13:47:35 sean-k-mooney ya i was plannign to focus on scenairo test to validate the vm lifecycle
13:47:50 sean-k-mooney so the placmeent reporting tests will complement that
14:02:44 opendevreview Merged openstack/cyborg master: devstack: add pci-sim fake SR-IOV PCI passthrough test fixture https://review.opendev.org/c/openstack/cyborg/+/989470
14:02:46 opendevreview Merged openstack/cyborg master: Add pci-sim developer guide https://review.opendev.org/c/openstack/cyborg/+/991177
14:55:44 opendevreview chandan kumar proposed openstack/cyborg master: Rename devstack CYBORG_CONF_FILE to CYBORG_CONF for consistency https://review.opendev.org/c/openstack/cyborg/+/979805

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