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SubjectRe: [PATCH RESEND V2] vdpa: introduce virtio pci driver
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On 2020/6/10 下午2:21, Michael S. Tsirkin wrote:
> On Wed, Jun 10, 2020 at 02:16:26PM +0800, Jason Wang wrote:
>> On 2020/6/10 下午2:07, Michael S. Tsirkin wrote:
>>> On Wed, Jun 10, 2020 at 01:49:51PM +0800, Jason Wang wrote:
>>>> This patch introduce a vDPA driver for virtio-pci device. It bridges
>>>> the virtio-pci control command to the vDPA bus. This will be used for
>>>> developing new features for both software vDPA framework and hardware
>>>> vDPA feature.
>>>>
>>>> Compared to vdpa_sim, it has several advantages:
>>>>
>>>> - it's a real device driver which allow us to play with real hardware
>>>> features
>>>> - type independent instead of networking specific
>>>>
>>>> Note that since virtio specification does not support get/restore
>>>> virtqueue state. So we can not use this driver for VM. This can be
>>>> addressed by extending the virtio specification.
>>>>
>>>> Consider the driver is mainly for testing and development for vDPA
>>>> features, it can only be bound via dynamic ids to make sure it's not
>>>> conflict with the drivers like virtio-pci or IFCVF.
>>>>
>>>> Signed-off-by: Jason Wang<jasowang@redhat.com>
>>> error: sha1 information is lacking or useless (drivers/vdpa/Kconfig).
>>>
>>> which tree is this on top of?
>>
>> Your vhost.git vhost branch, HEAD is bbea3bcfd1d6 vdpa: fix typos in the
>> comments for __vdpa_alloc_device()
>>
>> Do I need to use other branch?
>>
>> Thanks
> No it's ok, I am just wondering why doesn't it apply then.


I found the reason, I generate the patch on another branch whose base
does not existed in the vhost branch. Will repost.

Sorry.


>

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