Re: [PATCH net-next] xsk: introduce xsk_dma_ops

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On Mon, 17 Apr 2023 11:57:53 -0700, Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
> On Mon, 17 Apr 2023 11:56:10 -0700 Jakub Kicinski wrote:
> > > May misunderstand, here the "dma_ops" is not the "dma_ops" of DMA API.
> > >
> > > I mean the callbacks for xsk to do dma.
> > >
> > > Maybe, I should rename it in the next version.
> >
> > Would you mind explaining this a bit more to folks like me who are not
> > familiar with VirtIO?  DMA API is supposed to hide the DMA mapping
> > details from the stack, why is it not sufficient here.
>
> Umm.. also it'd help to post the user of the API in the same series.
> I only see the XSK changes, maybe if the virtio changes were in
> the same series I could answer my own question.


This [1] is the similar code. This is the early version. But the idea is
similar to this patch.


[1] https://lore.kernel.org/virtualization/20230202110058.130695-1-xuanzhuo@xxxxxxxxxxxxxxxxx/


Thanks.
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