On Wed, 31 Oct 2012 13:29:08 +0000 "Richter, Andre" <andre.rich...@tum.de> wrote:
> Hi all, > > I am trying to get my 82576 Virtual Functions to work under Xen 4.2 > on an Intel DQ77MK Motherboard (I have to use pci=assign-busses to > make the VFs show up). My machine reproduces what has been posted > here a while ago: > http://old-list-archives.xen.org/archives/html/xen-devel/2011-03/msg00063.html > I get MSI-X for the PF, but INTx for the VFs. Unfortunately, the > suggested solution of adding acpi=0 to the config file does not work > for me. >From the information below you seem to be missing MSIX support. It would look something like this: Capabilities: [70] MSI-X: Enable+ Count=64 Masked- Vector table: BAR=4 offset=00000000 PBA: BAR=4 offset=00002000 The bridge device your 82576 is connected to needs to support MSIX. I'm having a hard time figuring out how the PF gets MSIX when the upstream bridge doesn't support it. I didn't think that would work. - Greg > > This is the bridge the NIC is connected to: > > 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset > Family PCI Express Root Port 1 (rev c4) (prog-if 00 [Normal decode]) > 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 Bus: primary=00, secondary=03, > subordinate=03, sec-latency=0 I/O behind bridge: 0000f000-00000fff > Memory behind bridge: fff00000-000fffff Prefetchable memory behind > bridge: 00000000fff00000-00000000000fffff Secondary status: 66MHz- > FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR- > BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- > PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: > [40] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 128 > bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us ExtTag- RBE+ FLReset- > DevCtl: Report errors: Correctable- Non-Fatal- Fatal- > Unsupported- RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- > MaxPayload 128 bytes, MaxReadReq 128 bytes > DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- > AuxPwr+ TransPend- LnkCap: Port #1, Speed 5GT/s, Width x4, ASPM L0s > L1, Latency L0 <1us, L1 <16us ClockPM- Surprise- LLActRep+ BwNot- > LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- > Retrain- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- > SlotClk+ DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- > AttnInd- PwrInd- HotPlug- Surprise- Slot #0, PowerLimit 25.000W; > Interlock- NoCompl+ SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- > CmdCplt- HPIrq- LinkChg- Control: AttnInd Unknown, PwrInd Unknown, > Power- Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- > PresDet- Interlock- Changed: MRL- PresDet- LinkState- > RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- > PMEIntEna- CRSVisible- RootCap: CRSVisible- > RootSta: PME ReqID 0000, PMEStatus- PMEPending- > DevCap2: Completion Timeout: Range BC, TimeoutDis+ > ARIFwd- DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- ARIFwd- > LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- > SpeedDis-, Selectable De-emphasis: -6dB Transmit Margin: Normal > Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance > De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -3.5dB, > EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, > EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [80] MSI: > Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 > Capabilities: [90] Subsystem: Intel Corporation Device 2035 > Capabilities: [a0] Power Management version 2 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA > PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- > DSel=0 DScale=0 PME- Kernel driver in use: pcieport > Kernel modules: shpchp > > Any ideas what might be the cause I'm only getting INTx interrupts? > > Best Regards, > Andre > > ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_sfd2d_oct _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
