On Thu, Dec 27, 2012 at 3:00 AM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: > I don't see an SR-IOV capability in your lspci output. Are you sure > your 82599 device supports SR-IOV? > > The SR-IOV capability is a PCIe extended capability, which means it > would appear in the 0x100-0xfff extended config space. If your > platform doesn't support extended config space, you wouldn't see it. > For example, you might not have MMCONFIG enabled. > Thanks it works for me, this need to rebuild kernel with CONFIG_PCI_MMCONFIG=y, If I don't want to rebuild kernel, can we use pass "pci=mmconfig" as kernel parameter to instead Lei > On Wed, Dec 26, 2012 at 8:58 AM, Jiang Liu <liuj97@xxxxxxxxx> wrote: >> Hi Lei, >> Have you passed the module parameter to enable SR-IOV functions >> when loading the ixgbe module? >> >> max_vfs:Maximum number of virtual functions to allocate per physical function (uint) >> >> On 12/26/2012 10:26 PM, lei yang wrote: >>> I don't know if I'm wrong to ask this question here,if I'm wrong, >>> please route me to other list. >>> >>> >>> Lei >>> >>> root@intel_5500_server:~# lspci --version >>> lspci version 3.1.9 >>> root@intel_5500_server:~# lspci -vv -s "03:00.0" >>> 03:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit >>> SFI/SFP+ Network Connection (rev 01) >>> Subsystem: Intel Corporation Ethernet Server Adapter X520-1 >>> 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 >>> Region 0: Memory at b1900000 (64-bit, prefetchable) [size=512K] >>> Region 2: I/O ports at 2000 [size=32] >>> Region 4: Memory at b1980000 (64-bit, prefetchable) [size=16K] >>> 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=1 PME- >>> Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ >>> Address: 0000000000000000 Data: 0000 >>> Masking: 00000000 Pending: 00000000 >>> Capabilities: [70] MSI-X: Enable+ Count=64 Masked- >>> Vector table: BAR=4 offset=00000000 >>> PBA: BAR=4 offset=00002000 >>> Capabilities: [a0] Express (v2) Endpoint, MSI 00 >>> DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us >>> ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ >>> DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- >>> RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- >>> MaxPayload 256 bytes, MaxReadReq 512 bytes >>> DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- >>> LnkCap: Port #2, Speed 5GT/s, Width x8, ASPM L0s, Latency L0 <1us, L1 <8us >>> ClockPM- Surprise- LLActRep- BwNot- >>> LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+ >>> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- >>> LnkSta: Speed 5GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- >>> BWMgmt- ABWMgmt- >>> DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ >>> DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- >>> 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- >>> Kernel driver in use: ixgbe >>> Kernel modules: ixgbe >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-pci" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-pci" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
