On Thu, 2015-01-08 at 16:40 +0800, Wangting (Kathy) wrote: > 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?
Did you enable MSISupported in inf file? Cheers, Vadim. > > Thank you very much. > > Best wishes, > > Ting Wang > > > > > > > >