Re: nointxmask device

[Bjorn Helgaas <helgaas@kernel.org>]

[+cc Alex, kvm]

On Tue, Sep 10, 2024 at 01:13:41PM +0000, zdravko delineshev wrote:
> 
> Hello,
> 
> i found a note in the vfio-pci parameters to email devices fixed by the nointxmask parameter.
> 
> Here is the one i have and i am trying to pass trough. it is currently working fine, with nointxmask=1 .
> 
> 
> 81:00.0 Audio device: Creative Labs EMU20k2 [Sound Blaster X-Fi Titanium Series] (rev 03)
>         Subsystem: Creative Labs EMU20k2 [Sound Blaster X-Fi Titanium Series]
>         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, Cache Line Size: 32 bytes
>         Interrupt: pin A routed to IRQ 409
>         NUMA node: 1
>         IOMMU group: 23
>         Region 0: Memory at d3200000 (64-bit, non-prefetchable) [size=64K]
>         Region 2: Memory at d3000000 (64-bit, non-prefetchable) [size=2M]
>         Region 4: Memory at d2000000 (64-bit, non-prefetchable) [size=16M]
>         Capabilities: [40] Power Management version 3
>                 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                 Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>         Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
>                 Address: 0000000000000000  Data: 0000
>         Capabilities: [58] Express (v2) Endpoint, MSI 00
>                 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
>                         ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 0W
>                 DevCtl: CorrErr- NonFatalErr- FatalErr+ UnsupReq-
>                         RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+
>                         MaxPayload 128 bytes, MaxReadReq 512 bytes
>                 DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
>                 LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
>                         ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
>                 LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk-
>                         ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>                 LnkSta: Speed 2.5GT/s, Width x1
>                         TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
>                 DevCap2: Completion Timeout: Range ABCD, TimeoutDis- NROPrPrP- LTR-
>                          10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
>                          EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
>                          FRS- TPHComp- ExtTPHComp-
>                          AtomicOpsCap: 32bit- 64bit- 128bitCAS-
>                 DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
>                          AtomicOpsCtl: ReqEn-
>                 LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
>                          Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
>                          Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
>                 LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
>                          EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
>                          Retimer- 2Retimers- CrosslinkRes: unsupported
>         Capabilities: [100 v1] Device Serial Number ff-ff-ff-ff-ff-ff-ff-ff
>         Capabilities: [300 v1] 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- AdvNonFatalErr+
>                 CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
>                 AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
>                         MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
>                 HeaderLog: 00000000 00000000 00000000 00000000
>         Kernel driver in use: vfio-pci
>         Kernel modules: snd_ctxfi
> 00: 02 11 0b 00 46 01 10 00 03 00 03 04 08 00 00 00
> 10: 04 00 20 d3 00 00 00 00 04 00 00 d3 00 00 00 00
> 20: 04 00 00 d2 00 00 00 00 00 00 00 00 02 11 44 00
> 30: 00 00 00 00 40 00 00 00 00 00 00 00 0b 01 00 00
> 40: 01 48 03 00 00 00 00 00 05 58 80 00 00 00 00 00
> 50: 00 00 00 00 00 00 00 00 10 00 02 00 00 80 00 00
> 60: 14 2c 20 00 11 0c 00 00 00 00 11 00 00 00 00 00
> 70: 00 00 00 00 00 00 00 00 00 00 00 00 0f 00 00 00
> 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00