Re: [PATCH 4/4] thunderbolt: Get rid of E2E workaround

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On Mon, Jun 15, 2020 at 6:55 PM Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:
>
> On Mon, Jun 15, 2020 at 06:41:32PM +0300, Yehezkel Bernat wrote:
> > > I think you are talking about the "prtstns" property in the network
> > > driver. There we only set TBNET_MATCH_FRAGS_ID (bit 1). This is the
> > > thing that get exposed to the other side of the connection and we never
> > > announced support for full E2E.
> >
> >
> > Ah, yes, this one, Thanks!
> > As Windows driver uses it for flagging full-E2E, and we completely drop E2E
> > support here, it may worth to mention there that this is what bit 2 is used in
> > Windows so any reuse should consider the possible compatibility issue.
>
> Note we only drop dead code in this patch. It is that workaround for
> Falcon Ridge controller we actually never used.
>
> I can add a comment to the network driver about the full E2E support
> flag as a separate patch if you think it is useful.
>
> The network protocol will be public soon I guess because USB4 spec
> refers to "USB4 Inter-Domain Specification, Revision 1.0, [to be
> published] – (USB4 Inter-Domain Specification)" so I would expect it to
> be explained there as well.

I see. I leave it for your decision, then.
Thanks for bearing with me.




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