On Thu, 10 Sep 2020 07:30:39 +0000, Tal Shnaiderman wrote: > Right, it can happen in virtualization setups when several virtual functions > can have the same BDF, e.g.: > > PS > Get-NetAdapterHardwareInfo > > Name Segment Bus Device Function Slot NumaNode > PcieLinkSpeed > ---- ------- --- ------ -------- ---- -------- > ------------- > Ethernet 0 0 10 0 > Unknown > Ethernet 4 58601 0 2 0 0 > Unknown > Ethernet 5 52956 0 2 0 0 > Unknown > > DPDK currently can detect either Ethernet 4 or ethernet 5 if only BDF is > checked. > Unix uses the Domain value, the equivalent value for Windows is Segment.
Hi Tal, I wonder how exactly this setup can be reproduced, i.e. could you share relevant QEMU options, VMX file or some other config you're using? Patch idea and code look clear, however, I never managed to build QEMU PCIe hierarchy to see it working.