From: "Wangting (Kathy)" <kathy.wangting@huawei.com>
To: Vadim Rozenfeld <vrozenfe@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] Fwd: [question] About MSI for vioscsi
Date: Thu, 8 Jan 2015 17:27:25 +0800 [thread overview]
Message-ID: <54AE4D7D.5040407@huawei.com> (raw)
In-Reply-To: <1420707684.4185.3.camel@oscar>
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?
>>
>> Thank you very much.
>>
>> Best wishes,
>>
>> Ting Wang
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
next prev parent reply other threads:[~2015-01-08 9:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <54AE4253.2090206@huawei.com>
2015-01-08 8:40 ` [Qemu-devel] Fwd: [question] About MSI for vioscsi Wangting (Kathy)
2015-01-08 9:01 ` Vadim Rozenfeld
2015-01-08 9:27 ` Wangting (Kathy) [this message]
2015-01-08 10:03 ` Vadim Rozenfeld
2015-01-09 3:48 ` Wangting (Kathy)
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