Hi Vadim, In order to enable MSI for vioscsi in virtio-win-0.1-74, I try to merge
the patch about Bug 1077566 into it, but I find that MSI still doesn't work, because the value of IRQ is not negative in the device manager. I try to trace the I/O path with ENABLE_COM_DEBUG, and I find that pMsixCapOffset->MessageControl.MSIXEnable is zero when StorPortGetBusData returned in VioScsiFindAdapter, so MSI can't be enabled. I have tested that MSI is successfully enabled in virtio-win-0.1-81. But I still want to find out why the patch is not work in virtio-win-0.1-74. Is there some important points I missed? Thank you very much. Best wishes, Ting Wang
