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,
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>> because the value of IRQ is not negative in the device manager.
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>> I try to trace the I/O path with ENABLE_COM_DEBUG, and I find that
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>> pMsixCapOffset->MessageControl.MSIXEnable is zero when
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>> StorPortGetBusData returned in VioScsiFindAdapter, so MSI can't be enabled.
>>
>> I have tested that MSI is successfully enabled in virtio-win-0.1-81.
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>> 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?
>>
>> Thank you very much.
>>
>> Best wishes,
>>
>> Ting Wang
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