VScaler: Advantech PCIe passthrough

[root@localhost ~]# cat /etc/kolla/config/nova.conf
[filter_scheduler]
enabled_filters = RetryFilter, AvailabilityZoneFilter, RamFilter, ComputeFilter, ComputeCapabilitiesFilter, ImagePropertiesFilter, ServerGroupAntiAffinityFilter, ServerGroupAffinityFilter, PciPassthroughFilter
available_filters=nova.scheduler.filters.all_filters

[libvirt]
cpu_mode = custom
cpu_model = Skylake-Client

[pci]
passthrough_whitelist = { "address": "0000:05:00.0" }
alias={"vendor_id":"50c1","product_id":"0003","device_type":"type-PCI","name":"a1"}

[root@localhost ~]# openstack image create --disk-format raw --container-format bare --public  --file CentOS-7-x86_64-Everything-1804.iso Centos7.5_everything



[root@localhost ~]# openstack flavor show  m1.pass_8G
+----------------------------+--------------------------------------+
| Field                      | Value                                |
+----------------------------+--------------------------------------+
| OS-FLV-DISABLED:disabled   | False                                |
| OS-FLV-EXT-DATA:ephemeral  | 0                                    |
| access_project_ids         | None                                 |
| disk                       | 0                                    |
| id                         | d476fa2d-71d6-4686-b363-2b84baac3a3d |
| name                       | m1.pass_8G                           |
| os-flavor-access:is_public | True                                 |
| properties                 | pci_passthrough:alias='a1:1'         |
| ram                        | 8024                                 |
| rxtx_factor                | 1.0                                  |
| swap                       |                                      |
| vcpus                      | 2                                    |
+----------------------------+--------------------------------------+
[root@localhost ~]#

# to enable vfio drivers 

root@localhost ~]# cat /etc/modprobe.d/vfio.conf
options vfio-pci ids=50c1:0003
root@localhost ~]# echo 'vfio-pci' > /etc/modules-load.d/vfio-pci.conf
root@localhost ~]# reboot

# In base OS 
root@localhost ~]# lspci -vvvvvvns 05:00
[root@localhost ~]# lspci -vvns 05:00
05:00.0 0480: 50c1:0003 (rev 01)
        Subsystem: 50c1:0001
        Physical Slot: 41
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0
        Interrupt: pin ? routed to IRQ 66
        Region 0: Memory at df400000 (32-bit, non-prefetchable) [size=128K]
        Region 2: Memory at df200000 (32-bit, non-prefetchable) [size=2M]
        Region 4: Memory at df430000 (32-bit, non-prefetchable) [size=32K]
        Region 5: Memory at df420000 (32-bit, non-prefetchable) [size=64K]
        Capabilities: [40] Power Management version 3
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [c0] MSI: Enable+ Count=1/1 Maskable- 64bit+
                Address: 00000000fee004d8  Data: 0000
        Capabilities: [80] Express (v2) Endpoint, MSI 00
                DevCap: MaxPayload 1024 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
                        ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 25.000W
                DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
                        RlxdOrd- ExtTag+ PhantFunc- AuxPwr- NoSnoop+
                        MaxPayload 256 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
                LnkCap: Port #0, Speed 5GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <1us, L1 <16us
                        ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
                LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 5GT/s, Width x4, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
                         Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                         Compliance De-emphasis: -6dB
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
                         EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
        Capabilities: [100 v2] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
                AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
        Capabilities: [200 v1] Virtual Channel
                Caps:   LPEVC=0 RefClk=100ns PATEntryBits=1
                Arb:    Fixed- WRR32- WRR64- WRR128-
                Ctrl:   ArbSelect=Fixed
                Status: InProgress-
                VC0:    Caps:   PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
                        Arb:    Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
                        Ctrl:   Enable+ ID=0 ArbSelect=Fixed TC/VC=01
                        Status: NegoPending- InProgress-
        Capabilities: [3a0 v1] Device Serial Number 00-00-00-00-00-00-00-01
        Capabilities: [400 v1] Vendor Specific Information: ID=0020 Rev=3 Len=100 <?>
        '''Kernel driver in use: vfio-pci'''