Re: [PATCH 6/6] vduse: Support specifying bounce buffer size via sysfs

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On Thu, Nov 17, 2022 at 2:08 PM Yongji Xie <xieyongji@xxxxxxxxxxxxx> wrote:
>
> On Thu, Nov 17, 2022 at 1:26 PM Jason Wang <jasowang@xxxxxxxxxx> wrote:
> >
> > On Mon, Nov 14, 2022 at 3:16 PM Xie Yongji <xieyongji@xxxxxxxxxxxxx> wrote:
> > >
> > > Add sysfs interface to support specifying bounce
> > > buffer size in virtio-vdpa case. This is a performance
> > > tuning parameter for high throughput workloads.
> >
> > I wonder what's the reason for not having this in VDUSE_CREATE_DEV?
> >
>
> This was discussed [1] before.
>
> [1] https://lore.kernel.org/netdev/20210713084656.232-3-xieyongji@xxxxxxxxxxxxx/T/#m48ccd5bb514c40345d476bac80a59a99eeb9e9a7
>
> And the device's sysfs interface should be better than module parameters.

Right, so let's document this somewhere (probably the changelog).

Thanks

>
> Thanks,
> Yongji
>

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