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#openstack-nova - 2023-08-25
20:57:13 atmark sean-k-mooney: what should be id for deleted in compute_nodes table ?
20:57:54 atmark the id between services and compute_nodes table don't match https://paste.openstack.org/show/b2yJiggYenod3SoioAyo/
20:58:13 atmark i'm trying to get rid of compute05.dev
21:38:19 atmark sean-k-mooney: figured it out. I matched the value in id and deleted in compute_nodes table
21:38:27 atmark Thanks for your help
23:57:45 opendevreview sean mooney proposed openstack/nova master: remove untils.spawn_n https://review.opendev.org/c/openstack/nova/+/892722
#openstack-nova - 2023-08-26
01:54:18 opendevreview sean mooney proposed openstack/nova master: Handle inactive port binding in _update_port_binding_for_instance https://review.opendev.org/c/openstack/nova/+/653506
03:26:26 opendevreview OpenStack Proposal Bot proposed openstack/nova master: Imported Translations from Zanata https://review.opendev.org/c/openstack/nova/+/891648
03:49:03 opendevreview melanie witt proposed openstack/nova master: block_device: Add encryption attributes to swap disks https://review.opendev.org/c/openstack/nova/+/884312
12:44:16 opendevreview Merged openstack/nova stable/zed: Don't provide MTU value in metadata service if DHCP is enabled https://review.opendev.org/c/openstack/nova/+/877500
#openstack-nova - 2023-08-28
04:17:37 opendevreview OpenStack Proposal Bot proposed openstack/nova master: Imported Translations from Zanata https://review.opendev.org/c/openstack/nova/+/891648
07:36:29 dvo-plv sean-k-mooney, Hello. Are you here ?
09:16:28 gokhani hello folks, ı am trying to migrate from vmware to openstack and my vm stuck at booting from harddisk. I converted from vmdk to raw. I followed https://superuser.openinfra.dev/articles/how-to-migrate-from-vmware-and-hyper-v-to-openstack/ guide. my fstab file on my vm is https://paste.openstack.org/show/bqO5mJ9gCpyHEEBgvMjZ/. what can be reason of stucking at boot from harddisk ?
09:16:28 gokhani hello folks, ı am trying to migrate from vmware to openstack and my vm stuck at booting from harddisk. I converted from vmdk to raw. I followed https://superuser.openinfra.dev/articles/how-to-migrate-from-vmware-and-hyper-v-to-openstack/ guide. my fstab file on my vm is https://paste.openstack.org/show/bqO5mJ9gCpyHEEBgvMjZ/. what can be reason of stucking at boot from harddisk ?
09:16:54 gokhani vm is ubuntu 20.04 and cloudinit package is installed
10:32:41 bauzas good morning Nova
10:32:50 sean-k-mooney o/
10:33:35 sean-k-mooney i would say a lot has changed since you were last here but until last week the ci has been mostly unable to merge thigns so...
10:34:32 bauzas argh
10:34:46 sean-k-mooney gmann: dansmith and other have fortunetly managed to improve that of late but the reality is very little had merge in the early part of your pto
10:34:52 bauzas I haven't yet looked at gerrit
10:35:10 bauzas but this afternoon, I'll do
10:35:26 bauzas this morning, paperwork + email scrubbing :(
10:35:53 sean-k-mooney i feel like configing that to morning is probably ambious
10:39:06 bauzas tbh, I need way more coffee before looking at the gate :)
10:41:17 sean-k-mooney its relitivly fine at the moment
10:41:44 sean-k-mooney bar the normaly volume detach issues which i think will be a ptg topic
11:34:39 gibi bauzas: o/ welcome back. we did not pass the bug triage baton around during your PTO, I was lazy to find a candidate during the meeting. Otherwise the meetings were held and producitve as much as summer period allows.
11:34:55 bauzas ++ thanks for the offer
12:42:48 dvo-plv sean-k-mooney, What do you think regarding multi nic support in the our patch by adding additional configuration via config file or even better using binding profile
12:43:11 sean-k-mooney hard no on config file
12:43:32 sean-k-mooney or user specifying data in the binding profile
12:44:00 sean-k-mooney well it depends on where the config file would be used, whats in it and how that is confiugred
12:44:12 sean-k-mooney but i dont think that likely to work.
12:44:18 dvo-plv get configuration here to generate correct socket name https://review.opendev.org/c/openstack/neutron/+/869510/13/neutron/plugins/ml2/drivers/openvswitch/mech_driver/mech_openvswitch.py#221
12:44:30 dvo-plv and here to create correct vf number https://review.opendev.org/c/openstack/os-vif/+/859574/8/vif_plug_ovs/ovs.py#349
12:44:31 sean-k-mooney note that binding_profile is expclivily for nova to pass data to the network backend
12:45:29 sean-k-mooney as in you woudl have someihng in the neurton l2 agents config file
12:45:44 sean-k-mooney which gets pass as part fo agent['configurations']
12:45:58 sean-k-mooney that you need use to calulate the vf number
12:47:45 sean-k-mooney i dont really think that is the correct approch honestly
12:49:00 dvo-plv but we need to correlate somehow formula for socket and vf number calculating
12:49:59 sean-k-mooney how i think this shoudl work is likely nova shoudl gather the info required adn store it in the binidng_profile and then neutron shoudl use that to calualte the path
12:50:25 dvo-plv we use simple number for vf and socket name stdvio+vf number. Mellanox uses something like pf0vf0 formulation
12:50:49 dvo-plv sorry, what info required, where what entity we should parse to get this info
12:51:35 sean-k-mooney the vf number is only meainifn if you know the parent PF pci device
12:52:53 sean-k-mooney can you express what exactly is required to match
12:54:13 sean-k-mooney are you useing the vf number to identigfy the dpdk port or somehting like that
12:54:33 sean-k-mooney i.e. stdvio10 maps to dpdk10
12:54:39 dvo-plv in our case to create correct socket, we need socket name base ( stdvio ) and vf number according to the formula "domain bus slot" * 8 + "func number"
12:55:09 dvo-plv I added comment here https://review.opendev.org/c/openstack/os-vif/+/859574/8/vif_plug_ovs/ovs.py#352
12:55:57 sean-k-mooney that does not expalin why tha tis need and the algorhtim you implemted does nto match that
12:57:11 sean-k-mooney what the code does is take 0000:2b:01.2 then reduce it to 01.2 then split that to 01 and 2
12:57:16 dvo-plv we reserved first 4 pci for pf needs
12:57:27 sean-k-mooney and do 8*1+2
12:58:36 sean-k-mooney so your are discarding the domain and bus numbers then lookig only at the slot and function
12:59:41 sean-k-mooney so 0000:2b:01.2 and 0000:3b:01.2 will compute the same socket
12:59:42 dvo-plv yes, we use this approach to work with single nic support
13:00:07 sean-k-mooney right which i i dont think is suffent to move forward with this
13:00:46 dvo-plv multi nic support is in the development, so I would like to provide method, which can calculate correct vf number and socket for all vendors by passing formula to the binding profile
13:01:15 sean-k-mooney that feels like a hack
13:01:41 sean-k-mooney i also dont like the idea of effectlivly embedding a dsl to expres the formula which is then interpreted at run time
13:04:29 sean-k-mooney dvo-plv: lookign tat the ovs and dpdk docs
13:04:54 sean-k-mooney the way we add port representors is by pasing the PCI address of the PF + the represnetor vf offest
13:04:56 sean-k-mooney https://docs.openvswitch.org/en/latest/topics/dpdk/phy/?highlight=dpdk#representors
13:05:04 sean-k-mooney i.e. ovs-vsctl add-port br0 dpdk-rep3 -- set Interface dpdk-rep3 type=dpdk \
13:05:06 sean-k-mooney options:dpdk-devargs=0000:08:00.0,representor=vf3
13:06:02 dvo-plv yes, we do the same, but representor identifier is not fixed, so it depends on vendor dpdk driver
13:06:36 sean-k-mooney well thats kind of a problem
13:06:52 sean-k-mooney since the code you want to modify is mento be vendor neutral
13:07:16 sean-k-mooney meaning your are not allowewd to make vendor speciifc chagnes to it
13:07:42 dvo-plv this why, I would like to provide config via binding profile
13:09:15 sean-k-mooney no
13:09:45 sean-k-mooney thats not really an option
13:10:10 sean-k-mooney at least not without alot of other changes
13:10:25 sean-k-mooney so here https://review.opendev.org/c/openstack/os-vif/+/859574/8/vif_plug_ovs/tests/unit/test_plugin.py#440
13:10:36 sean-k-mooney you are creatign the port doing effectivly
13:10:55 sean-k-mooney ovs-vsctl add-port br0 dpdk-rep3 -- set Interface dpdk-rep3 type=dpdk \
13:10:56 sean-k-mooney options:dpdk-devargs=0000:08:00.0,representor=vf3
13:14:58 sean-k-mooney when you say the representor identifyier are you referign to vf3
13:15:05 sean-k-mooney or the vhost-user socket file name
13:15:17 sean-k-mooney dvo-plv: or both?
13:15:35 dvo-plv both
13:15:53 sean-k-mooney so the convention in ovs is the socket name should match the port name
13:16:23 sean-k-mooney at least for interfaces of type vhost-user and vhost-user-client
13:16:38 sean-k-mooney or whatever the ovs constats for those are
13:17:09 dvo-plv I believe it can be correct for dpdk port type too
13:19:04 dvo-plv but as far as there is no convention regarding name formulation, we have to hardcore socket name on the dpdk initialization step
13:19:59 dvo-plv we create vf and socket at the same time and then pass it to the some application to use
13:20:13 sean-k-mooney that not how thign will work in nova/openstack
13:20:30 sean-k-mooney the VFs woudl have to be staticaly allocated effectivly at boot time
13:20:58 sean-k-mooney what driver is the PF bound too?
13:21:32 sean-k-mooney its bound to a kernel dirver not DPDK yes?
13:22:08 dvo-plv we use default vfio
13:22:40 sean-k-mooney for the VFs or the PF
13:23:59 sean-k-mooney vfio-pci is ok for the vf but not the PF
13:28:27 sean-k-mooney based on https://doc.dpdk.org/guides-22.11/prog_guide/switch_representation.html#vf-representors i think the PF are bound to a kernel dirver and the VFs are boud to vfio-pci then managed by the dpdk userspace driver
13:31:44 sean-k-mooney althogh im not sure that is correct if i look at https://doc.dpdk.org/guides-22.11/prog_guide/switch_representation.html#basic-sr-iov
13:32:07 sean-k-mooney "A DPDK application running on the hypervisor owns the PF device, which is arbitrarily assigned port index 3"
13:35:27 sean-k-mooney honestly i think upstream ovs need to be modifed to take the vhost-user socket path as a pramter when we do the port add

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