On Thu, 2015-01-08 at 17:27 +0800, Wangting (Kathy) wrote: > > On 2015-1-8 17:01, Vadim Rozenfeld wrote: > > 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. > > > Where is the inf file? Do you mean qemupciserial.inf?
vioscsi.inx in the source directory. After stamping, it will be copied into vioscsi.inf, as part of build process. > >> > >> Thank you very much. > >> > >> Best wishes, > >> > >> Ting Wang > >> > >> > >> > >> > >> > >> > >> > >> > > > > > > > > > >
