Brief Description
We are using STX 4.0.1 to install our Flexran based 5G solution in AIO-SX mode . We had created VFs on the N3000 device and some of the NIC interfaces. These resources were reflected in the Kuberenets allocatable resources. During the course of using the system, the allocatable resources for N3000 and one of the NIC interface crad started coming up as 0. The following is a part of kubectl describe nodes output. The affected resources are intel.com/intel_fpga_fec,  intel.com/pci_sriov_net_datanet_c, and intel.com/pci_sriov_net_datanet_u

We already tried lock/unlock, delete and re-create the resources, but none of these help to recover the resources

[root@controller-0 sysadmin(keystone_admin)]# cat /etc/build.info
###
### StarlingX
###     Release 20.06
###

OS="centos"
SW_VERSION="20.06"
BUILD_TARGET="Host Installer"
BUILD_TYPE="Formal"
BUILD_ID="r/stx.4.0"

JOB="STX_4.0_build_layer_flock"
<email address hidden>"
BUILD_NUMBER="22"
BUILD_HOST="starlingx_mirror"
BUILD_DATE="2020-08-05 12:25:52 +0000"

FLOCK_OS="centos"
FLOCK_JOB="STX_4.0_build_layer_flock"
<email address hidden>"
FLOCK_BUILD_NUMBER="22"
FLOCK_BUILD_HOST="starlingx_mirror"
FLOCK_BUILD_DATE="2020-08-05 12:25:52 +0000"





Capacity:
  cpu:                                 96
  ephemeral-storage:                   10190100Ki
  hugepages-1Gi:                       46Gi
  hugepages-2Mi:                       0
  intel.com/intel_fpga_fec:            0
  intel.com/pci_sriov_net_datanet_c:   0
  intel.com/pci_sriov_net_datanet_u:   0
  intel.com/pci_sriov_net_datanetbh1:  8
  intel.com/pci_sriov_net_datanetdn1:  8
  intel.com/pci_sriov_net_datanetmh1:  8
  memory:                              97436728Ki
  pods:                                110
Allocatable:
  cpu:                                 92
  ephemeral-storage:                   9391196145
  hugepages-1Gi:                       46Gi
  hugepages-2Mi:                       0
  intel.com/intel_fpga_fec:            0
  intel.com/pci_sriov_net_datanet_c:   0
  intel.com/pci_sriov_net_datanet_u:   0
  intel.com/pci_sriov_net_datanetbh1:  8
  intel.com/pci_sriov_net_datanetdn1:  8
  intel.com/pci_sriov_net_datanetmh1:  8



It seems like everything is "OK" upto sriov device plugin because the sriov device plugin pod logs do show that the correct number of resources are getting updated towards kubernetes



Here are some of the CLI outputs:

[root@controller-0 sysadmin(keystone_admin)]# system host-device-show controller-0 pci_0000_1d_00_0 
+-----------------------+---------------------------------------------------------------------------------------------------------+
| Property              | Value                                                                                                   |
+-----------------------+---------------------------------------------------------------------------------------------------------+
| name                  | pci_0000_1d_00_0                                                                                        |
| address               | 0000:1d:00.0                                                                                            |
| class id              | 120000                                                                                                  |
| vendor id             | 8086                                                                                                    |
| device id             | 0d8f                                                                                                    |
| class name            | Processing accelerators                                                                                 |
| vendor name           | Intel Corporation                                                                                       |
| device name           | Device 0d8f                                                                                             |
| numa_node             | 0                                                                                                       |
| enabled               | True                                                                                                    |
| sriov_totalvfs        | 8                                                                                                       |
| sriov_numvfs          | 8                                                                                                       |
| sriov_vfs_pci_address | 0000:1d:00.1,0000:1d:00.2,0000:1d:00.3,0000:1d:00.4,0000:1d:00.5,0000:1d:00.6,0000:1d:00.7,0000:1d:01.0 |
| sriov_vf_pdevice_id   | 0d90                                                                                                    |
| extra_info            |                                                                                                         |
| created_at            | 2021-03-03T13:46:26.363470+00:00                                                                        |
| updated_at            | 2021-03-03T13:47:12.684827+00:00                                                                        |
| root_key              | None                                                                                                    |
| revoked_key_ids       | None                                                                                                    |
| boot_page             | None                                                                                                    |
| bitstream_id          | None                                                                                                    |
| bmc_build_version     | None                                                                                                    |
| bmc_fw_version        | None                                                                                                    |
| driver                | igb_uio                                                                                                 |
| sriov_vf_driver       | igb_uio                                                                                                 |
+-----------------------+---------------------------------------------------------------------------------------------------------+
[root@controller-0 sysadmin(keystone_admin)]# system host-if-show controller-0 sriovfh1 
+-----------------+--------------------------------------+
| Property        | Value                                |
+-----------------+--------------------------------------+
| ifname          | sriovfh1                             |
| iftype          | ethernet                             |
| ports           | [u'enp177s0f3']                      |
| imac            | 40:a6:b7:34:e4:a3                    |
| imtu            | 9216                                 |
| ifclass         | pci-sriov                            |
| ptp_role        | none                                 |
| aemode          | None                                 |
| schedpolicy     | None                                 |
| txhashpolicy    | None                                 |
| uuid            | 6f30a690-2414-424f-b5fc-d324d63cc502 |
| ihost_uuid      | 8075e0db-4cc5-4d74-8601-849adce97b7e |
| vlan_id         | None                                 |
| uses            | []                                   |
| used_by         | []                                   |
| created_at      |                                      |
| updated_at      |                                      |
| sriov_numvfs    | 16                                   |
| sriov_vf_driver | vfio                                 |
| accelerated     | [True]                               |
+-----------------+--------------------------------------+

[root@controller-0 sysadmin(keystone_admin)]# system interface-datanetwork-list controller-0
+--------------+--------------------------------------+----------+------------------+
| hostname     | uuid                                 | ifname   | datanetwork_name |
+--------------+--------------------------------------+----------+------------------+
| controller-0 | 63a44e7b-18f4-4f9b-8504-a950cb8abb86 | sriovfh1 | datanet-c        |
| controller-0 | 6aff29d7-cfaf-48b4-9802-b17b8a025efc | sriovdn1 | datanetdn1       |
| controller-0 | 76a2da50-11a6-408e-90b3-3a316cef6557 | sriovmh1 | datanetmh1       |
| controller-0 | e155e1d0-8dec-47e6-ac60-076832698a95 | sriovfh1 | datanet-u        |
| controller-0 | e569db46-a31b-4b8f-b7ca-175b1168798f | sriovbh1 | datanetbh1       |
+--------------+--------------------------------------+----------+------------------+
[root@controller-0 sysadmin(keystone_admin)]# system interface-datanetwork-show datanet-c controller-0 datanet-ccontroller-0 datanet-c datanet-clist controller-0
+--------------+--------------------------------------+----------+------------------+
| hostname     | uuid                                 | ifname   | datanetwork_name |
+--------------+--------------------------------------+----------+------------------+
| controller-0 | 63a44e7b-18f4-4f9b-8504-a950cb8abb86 | sriovfh1 | datanet-c        |
| controller-0 | 6aff29d7-cfaf-48b4-9802-b17b8a025efc | sriovdn1 | datanetdn1       |
| controller-0 | 76a2da50-11a6-408e-90b3-3a316cef6557 | sriovmh1 | datanetmh1       |
| controller-0 | e155e1d0-8dec-47e6-ac60-076832698a95 | sriovfh1 | datanet-u        |
| controller-0 | e569db46-a31b-4b8f-b7ca-175b1168798f | sriovbh1 | datanetbh1       |
+--------------+--------------------------------------+----------+------------------+
[root@controller-0 sysadmin(keystone_admin)]# system interface-datanetwork-list controller-0show 63a44e7b-18f4-4f9b-8504-a950cb8abb86
+------------------+--------------------------------------+
| Property         | Value                                |
+------------------+--------------------------------------+
| hostname         | controller-0                         |
| uuid             | 63a44e7b-18f4-4f9b-8504-a950cb8abb86 |
| ifname           | sriovfh1                             |
| datanetwork_name | datanet-c                            |
+------------------+--------------------------------------+
[root@controller-0 sysadmin(keystone_admin)]# system interface-datanetwork-show 63a44e7b-18f4-4f9b-8504-a950cb8abb86e155e1d0-8dec-47e6-ac60-076832698a95
+------------------+--------------------------------------+
| Property         | Value                                |
+------------------+--------------------------------------+
| hostname         | controller-0                         |
| uuid             | e155e1d0-8dec-47e6-ac60-076832698a95 |
| ifname           | sriovfh1                             |
| datanetwork_name | datanet-u                            |
+------------------+--------------------------------------+
[root@controller-0 sysadmin(keystone_admin)]#  



sriov device plugin logs:
=====================================================================================

controller-0:/home/sysadmin# kubectl logs kube-sriov-device-plugin-amd64-h9kp8 -n kube-system | grep intel_fpga_fec
      "resourceName": "intel_fpga_fec",
I0303 13:47:07.275600  138581 manager.go:106] unmarshalled ResourceList: [{ResourcePrefix: ResourceName:pci_sriov_net_datanet_c DeviceType:netDevice Selectors:0xc00000c900 SelectorObj:0xc0002601e0} {ResourcePrefix: ResourceName:pci_sriov_net_datanetbh1 DeviceType:netDevice Selectors:0xc00000c920 SelectorObj:0xc000260280} {ResourcePrefix: ResourceName:pci_sriov_net_datanetdn1 DeviceType:netDevice Selectors:0xc00000c940 SelectorObj:0xc000260320} {ResourcePrefix: ResourceName:pci_sriov_net_datanetmh1 DeviceType:netDevice Selectors:0xc00000c960 SelectorObj:0xc0002603c0} {ResourcePrefix: ResourceName:pci_sriov_net_datanet_u DeviceType:netDevice Selectors:0xc00000c9a0 SelectorObj:0xc000260460} {ResourcePrefix: ResourceName:intel_fpga_fec DeviceType:accelerator Selectors:0xc00000c9c0 SelectorObj:0xc00014c820}]
I0303 13:47:07.275709  138581 manager.go:193] validating resource name "intel.com/intel_fpga_fec"
I0303 13:47:07.450400  138581 manager.go:116] Creating new ResourcePool: intel_fpga_fec
I0303 13:47:07.450446  138581 manager.go:145] New resource server is created for intel_fpga_fec ResourcePool
I0303 13:47:07.453772  138581 server.go:191] starting intel_fpga_fec device plugin endpoint at: intel.com_intel_fpga_fec.sock
I0303 13:47:07.454032  138581 server.go:217] intel_fpga_fec device plugin endpoint started serving
I0303 13:47:07.640208  138581 server.go:106] Plugin: intel.com_intel_fpga_fec.sock gets registered successfully at Kubelet
I0303 13:47:07.640225  138581 server.go:131] ListAndWatch(intel_fpga_fec) invoked
I0303 13:47:07.640342  138581 server.go:139] ListAndWatch(intel_fpga_fec): send devices &ListAndWatchResponse{Devices:[]*Device{&Device{ID:0000:1d:01.0,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},&Device{ID:0000:1d:00.1,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},&Device{ID:0000:1d:00.2,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},&Device{ID:0000:1d:00.3,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},&Device{ID:0000:1d:00.4,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},&Device{ID:0000:1d:00.5,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},&Device{ID:0000:1d:00.6,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},&Device{ID:0000:1d:00.7,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:0,},},},},},}
controller-0:/home/sysadmin# 
controller-0:/home/sysadmin# 
controller-0:/home/sysadmin# 
controller-0:/home/sysadmin# 
controller-0:/home/sysadmin# kubectl logs kube-sriov-device-plugin-amd64-h9kp8 -n kube-system | grep intel_fpga_fecpci_sriov_net_datanet_c
      "resourceName": "pci_sriov_net_datanet_c",
I0303 13:47:07.275600  138581 manager.go:106] unmarshalled ResourceList: [{ResourcePrefix: ResourceName:pci_sriov_net_datanet_c DeviceType:netDevice Selectors:0xc00000c900 SelectorObj:0xc0002601e0} {ResourcePrefix: ResourceName:pci_sriov_net_datanetbh1 DeviceType:netDevice Selectors:0xc00000c920 SelectorObj:0xc000260280} {ResourcePrefix: ResourceName:pci_sriov_net_datanetdn1 DeviceType:netDevice Selectors:0xc00000c940 SelectorObj:0xc000260320} {ResourcePrefix: ResourceName:pci_sriov_net_datanetmh1 DeviceType:netDevice Selectors:0xc00000c960 SelectorObj:0xc0002603c0} {ResourcePrefix: ResourceName:pci_sriov_net_datanet_u DeviceType:netDevice Selectors:0xc00000c9a0 SelectorObj:0xc000260460} {ResourcePrefix: ResourceName:intel_fpga_fec DeviceType:accelerator Selectors:0xc00000c9c0 SelectorObj:0xc00014c820}]
I0303 13:47:07.275645  138581 manager.go:193] validating resource name "intel.com/pci_sriov_net_datanet_c"
I0303 13:47:07.449979  138581 manager.go:116] Creating new ResourcePool: pci_sriov_net_datanet_c
I0303 13:47:07.450122  138581 manager.go:145] New resource server is created for pci_sriov_net_datanet_c ResourcePool
I0303 13:47:07.450478  138581 server.go:191] starting pci_sriov_net_datanet_c device plugin endpoint at: intel.com_pci_sriov_net_datanet_c.sock
I0303 13:47:07.451088  138581 server.go:217] pci_sriov_net_datanet_c device plugin endpoint started serving
I0303 13:47:07.639929  138581 server.go:131] ListAndWatch(pci_sriov_net_datanet_c) invoked
I0303 13:47:07.640068  138581 server.go:106] Plugin: intel.com_pci_sriov_net_datanet_c.sock gets registered successfully at Kubelet
I0303 13:47:07.639996  138581 server.go:139] ListAndWatch(pci_sriov_net_datanet_c): send devices &ListAndWatchResponse{Devices:[]*Device{&Device{ID:0000:b1:0f.4,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.2,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.4,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.0,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.1,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.3,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.6,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.1,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.3,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.5,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.6,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.2,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.5,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.7,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.7,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.0,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},},}
controller-0:/home/sysadmin# kubectl logs kube-sriov-device-plugin-amd64-h9kp8 -n kube-system | grep pci_sriov_net_datanet_cu
      "resourceName": "pci_sriov_net_datanet_u",
I0303 13:47:07.275600  138581 manager.go:106] unmarshalled ResourceList: [{ResourcePrefix: ResourceName:pci_sriov_net_datanet_c DeviceType:netDevice Selectors:0xc00000c900 SelectorObj:0xc0002601e0} {ResourcePrefix: ResourceName:pci_sriov_net_datanetbh1 DeviceType:netDevice Selectors:0xc00000c920 SelectorObj:0xc000260280} {ResourcePrefix: ResourceName:pci_sriov_net_datanetdn1 DeviceType:netDevice Selectors:0xc00000c940 SelectorObj:0xc000260320} {ResourcePrefix: ResourceName:pci_sriov_net_datanetmh1 DeviceType:netDevice Selectors:0xc00000c960 SelectorObj:0xc0002603c0} {ResourcePrefix: ResourceName:pci_sriov_net_datanet_u DeviceType:netDevice Selectors:0xc00000c9a0 SelectorObj:0xc000260460} {ResourcePrefix: ResourceName:intel_fpga_fec DeviceType:accelerator Selectors:0xc00000c9c0 SelectorObj:0xc00014c820}]
I0303 13:47:07.275700  138581 manager.go:193] validating resource name "intel.com/pci_sriov_net_datanet_u"
I0303 13:47:07.450306  138581 manager.go:116] Creating new ResourcePool: pci_sriov_net_datanet_u
I0303 13:47:07.450388  138581 manager.go:145] New resource server is created for pci_sriov_net_datanet_u ResourcePool
I0303 13:47:07.453443  138581 server.go:191] starting pci_sriov_net_datanet_u device plugin endpoint at: intel.com_pci_sriov_net_datanet_u.sock
I0303 13:47:07.453750  138581 server.go:217] pci_sriov_net_datanet_u device plugin endpoint started serving
I0303 13:47:07.639929  138581 server.go:131] ListAndWatch(pci_sriov_net_datanet_u) invoked
I0303 13:47:07.639945  138581 server.go:139] ListAndWatch(pci_sriov_net_datanet_u): send devices &ListAndWatchResponse{Devices:[]*Device{&Device{ID:0000:b1:0e.1,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.5,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.2,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.3,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.0,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.0,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.1,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.3,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.5,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.6,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.7,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.4,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.6,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0e.7,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.2,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},&Device{ID:0000:b1:0f.4,Health:Healthy,Topology:&TopologyInfo{Nodes:[]*NUMANode{&NUMANode{ID:1,},},},},},}
I0303 13:47:07.640791  138581 server.go:106] Plugin: intel.com_pci_sriov_net_datanet_u.sock gets registered successfully at Kubelet

Severity:
Critical - This is a show stopper and blocks the deployment of Flexran

Steps to Reproduce:
1> created 8 VFs on FEC device with igb_uio driver and 16 VFs on a 10G NIC with vfio driver
2> system lock and unlock the host
3> checked the resource of FEC device from k8s
Allocatable:
intel.com/intel_fpga_fec: 8
intel.com/pci_sriov_net_datanet_c: 16
intel.com/pci_sriov_net_datanet_u: 16

4> system lock and unlock the host multiple times during regular usage
5> check k8s allocatable resources becomes 0 and then never recovers, even after multipl host lock/unlock

 Allocatable:
intel.com/intel_fpga_fec: 0
intel.com/pci_sriov_net_datanet_c: 0
intel.com/pci_sriov_net_datanet_u: 0

6> sriov daemonset pod logs seem to indicate the correct processing of the abover resource set definiton and registration to Kubelet

Expected Behavior:
All FPGA resources and SRIOV resources properly populated in the output of "kubectl describe nodes controller-0"

Actual Behavior:
Resources are not seen as expected

Reproducibility:
Intermittent

System Configuration
Simplex (AIO)

Branch/Pull Time/Commit
StarlingX4.0 Official ISO from http://mirror.starlingx.cengn.ca/mirror/starlingx/release/4.0.1/
Same issue observed even with the ISO build on 26-Feb-2021 03:40 http://mirror.starlingx.cengn.ca/mirror/starlingx/master/centos/latest_green_build/outputs/


Timestamp/Logs
--------------
Logs are huge and the page https://files.starlingx.kube.cengn.ca/ is not reachable. Is there any other place we can upload the logs? or let us know any individual log files you are looking at?


Test Activity
Evaluation

Workaround
None