linux-kernel - Re: [PATCH V3 16/19] virtio-pci: introduce modern device module

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Message-ID: <fe639f0f-d639-3c3c-e297-042127788aca@redhat.com>
Date:   Tue, 9 Feb 2021 11:29:46 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>
Cc:     virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org, shahafs@...lanox.com,
        lulu@...hat.com, sgarzare@...hat.com, rdunlap@...radead.org
Subject: Re: [PATCH V3 16/19] virtio-pci: introduce modern device module


On 2021/2/8 下午8:04, Michael S. Tsirkin wrote:
> On Mon, Feb 08, 2021 at 01:42:27PM +0800, Jason Wang wrote:
>> On 2021/2/5 下午11:34, Michael S. Tsirkin wrote:
>>> On Mon, Jan 04, 2021 at 02:55:00PM +0800, Jason Wang wrote:
>>>> Signed-off-by: Jason Wang<jasowang@...hat.com>
>>> I don't exactly get why we need to split the modern driver out,
>>> and it can confuse people who are used to be seeing virtio-pci.
>>
>> The virtio-pci module still there. No user visible changes. Just some codes
>> that could be shared with other driver were split out.
>>
> What I am saying is this: we can have virtio-vdpa depend on
> virtio-pci without splitting the common code out to an
> extra module.


Ok.


>
>>> The vdpa thing so far looks like a development tool, why do
>>> we care that it depends on a bit of extra code?
>>
>> If I'm not misunderstanding, trying to share codes is proposed by you here:
>>
>> https://lkml.org/lkml/2020/6/10/232
>>
>> We also had the plan to convert IFCVF to use this library.
>>
>> Thanks
> If that happens then an extra module might become useful.


So does it make sense that I post a new version and let's merge it 
first. Then Intel or I can convert IFCVF to use the library?

Thanks


>