Hi all, I'm trying to setup a system with device-passthrough for an ixgbe NIC. The device itself seems to work, but it isn't using MSI-X. So some more advanced features like DCB offloading etc won't work. lspci output of the device: 07:00.0 Ethernet controller: Intel Corporation 82599EB 10-Gigabit Network Connection (rev 01) Subsystem: Intel Corporation Ethernet Server Adapter X520-2 Flags: bus master, fast devsel, latency 0, IRQ 24 Memory at f5c80000 (64-bit, prefetchable) [size=512K] I/O ports at 5000 [size=32] Memory at f5c70000 (64-bit, prefetchable) [size=16K] [virtual] Expansion ROM at e7100000 [disabled] [size=512K] Capabilities: [40] Power Management version 3 Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Count=1/1 Enable- Capabilities: [70] MSI-X: Enable+ Mask- TabSize=64 Capabilities: [a0] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSVoil- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSVoil- UESvrt: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSVoil- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [140] Device Serial Number 40-9e-3c-ff-ff-21-1b-00 Capabilities: [150] Alternative Routing-ID Interpretation (ARI) ARICap: MFVC- ACS-, Next Function: 1 ARICtl: MFVC- ACS-, Function Group: 0 Capabilities: [160] Single Root I/O Virtualization (SR-IOV) IOVCap: Migration-, Interrupt Message Number: 000 IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy+ IOVSta: Migration- Initial VFs: 64, Total VFs: 64, Number of VFs: 64, Function Dependency Link: 00 VF offset: 128, stride: 2, Device ID: 10ed Supported Page Size: 00000553, System Page Size: 00000001 VF Migration: offset: 00000000, BIR: 1 Kernel driver in use: ixgbe Kernel modules: ixgbe please let me know if you need more information. Cheers, Hannes -- Dr. Hannes Reinecke zSeries & Storage hare@xxxxxxx +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Markus Rex, HRB 16746 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html