RE: [PATCH V3 2/4] misc: vop: do not allocate and reassign the used ring

From: Sherry Sun
Date: Tue Oct 27 2020 - 03:05:50 EST


Hi Sudeep & Ashutosh & Vincent,

Can you help test the patch about removing the codes of reassign used ring, and comment on the impact for Intel MIC platform?
Thanks for any help.

Best regards
Sherry

> Subject: Re: [PATCH V3 2/4] misc: vop: do not allocate and reassign the used
> ring
>
> On Mon, Oct 26, 2020 at 03:04:45AM +0000, Sherry Sun wrote:
> > Hi Greg & Christoph,
> >
> > > Subject: Re: [PATCH V3 2/4] misc: vop: do not allocate and reassign
> > > the used ring
> > >
> > > On Thu, Oct 22, 2020 at 01:06:36PM +0800, Sherry Sun wrote:
> > > > We don't need to allocate and reassign the used ring here and
> > > > remove the used_address_updated flag.Since RC has allocated the
> > > > entire vring, including the used ring. Simply add the
> > > > corresponding offset can get the used ring address.
> > >
> > > Someone needs to verify this vs the existing intel implementations.
> >
> > Hi Greg, @gregkh@xxxxxxxxxxxxxxxxxxx, sorry I don't have the Intel MIC
> devices so cannot test it, do you know anyone who can help test this patch
> changes on the Intel MIC platform? Thanks.
>
> Why not ask the authors/maintainers of that code?
>
> greg k-h