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From: zhukeqian <zhukeqian1@huawei.com>
Date: Tue, 13 Sep 2022 06:46:25 +0000
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Subject: Re: [virtio-comment] [PATCH] pci: Update ISR related description
 about MSI-X
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "virtio-comment@lists.oasis-open.org" <virtio-comment@lists.oasis-open.org>, "Wanghaibin (D)" <wanghaibin.wang@huawei.com>, "sundongxu (A)" <sundongxu3@huawei.com>
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Hi Michael,

>> =20
>>  Writing a valid MSI-X Table entry number, 0 to 0x7FF, to =20
>> \field{config_msix_vector}/\field{queue_msix_vector} maps interrupts=20
>> triggered @@ -1681,6 +1681,8 @@ \subsubsection{Notification of Device=20
>> Configuration Changes}\label{sec:Virtio Tr
>> =20
>>    \item If MSI-X capability is enabled:
>>      \begin{enumerate}
>> +    \item If \field{config_msix_vector} is not NO_VECTOR, set the secon=
d
>> +      lower bit of the ISR Status field for the device.
>
>I think it has to be set always. With NO_VECTOR driver can poll for config=
 changes.

Thanks for pointing it out. I will send v2.

Thanks,
Keqian

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