Almost a year and two more 4-controller usb 3.0 cards later, I still
haven't found one that does what I'm after. I purchased the StarTech
PEXUSB3S44V and the Sonnet Allegro Pro. Both devices get their own IOMMU
group for each controller without the ACS override patch. The StarTech
device seems to pass through okay, but I get in windows I get a code 10 on
its root hub. The Sonnet Allegro Pro passes through perfectly, until I
restart or shutdown the VM. After the passed through controller's entry in
lspci -vvvv changes from
04:00.0 USB controller: Fresco Logic FL1100 USB 3.0 Host Controller (rev
10) (prog-if 30 [XHCI])
Subsystem: Sonnet Technologies, Inc. Device 6e31
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: 64 bytes
Interrupt: pin A routed to IRQ 26
NUMA node: 0
Region 0: Memory at fe500000 (64-bit, non-prefetchable) [size=64K]
Region 2: Memory at fe511000 (64-bit, non-prefetchable) [size=4K]
Region 4: Memory at fe510000 (64-bit, non-prefetchable) [size=4K]
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: [50] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 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 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr-
TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit
Latency L0s unlimited, L1 unlimited
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, 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: [b0] MSI-X: Enable+ Count=8 Masked-
Vector table: BAR=2 offset=00000000
PBA: BAR=4 offset=00000000
Capabilities: [100 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-
NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout-
NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+
ChkEn-
Kernel driver in use: vfio-pci
Kernel modules: xhci_pci
to
04:00.0 USB controller: Fresco Logic FL1100 USB 3.0 Host Controller (rev
ff) (prog-if ff)
!!! Unknown header type 7f
Kernel driver in use: vfio-pci
Kernel modules: xhci_pci
Does anyone know of a three or four controller usb 3.0 device that can pass
through individual controllers in kvm? If not I guess I'll have to stick
with the Startech device and defect to esxi, as the passthrough is reported
to work fine there.
On Tue, Aug 25, 2015 at 1:38 PM, Alex Williamson <
alex.l.william...@gmail.com> wrote:
> On Tue, Aug 25, 2015 at 7:36 AM, Bradley Davis <bradleydavi...@gmail.com>
> wrote:
>
>> I have a 1144E and was able to pass the individual controllers through to
>> different VMs. My only issue was stability with the USB 3 controllers. They
>> would cause my VMs to crash or hang, when hung I would have to reboot the
>> host. I haven't run into this issue since I removed the card. I updated the
>> firmware on the USB 3 controllers and it didn't help. The SATA controllers
>> passed through just fine, but I didn't have an eSATA to plug into it.
>>
>
> I've also tried to assign an asmedia 1042 USB3 controller and was plagued
> with hangs on reboot, apparently in the OVMF XHCI driver. I switched to an
> NEC chip and it's been working well. In my personal opinion
> </disclaimer>, asmedia is crap. My personal favorite for USB3 is TI, but
> that's only based on bare metal behavior with mass storage devices, I
> haven't actually tried to assign it yet.
>
> Remember folks, device assignment is operating in a mode that's really not
> common for consumer devices and components from value manufacturers do not
> necessarily comply sufficiently with standards to work. We see this on
> realtek nics, asmedia <anything>, marvel SATA controllers, and there will
> surely be more to discover. Thanks,
>
> Alex
>
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