Re: [PATCH v3 6/8] usb: dwc2: host: Assume all devices are on one single_tt hub

From: Doug Anderson
Date: Wed Nov 25 2015 - 19:44:30 EST


Hi,

On Mon, Nov 23, 2015 at 4:28 PM, Doug Anderson <dianders@xxxxxxxxxxxx> wrote:
> John,
>
> On Thu, Nov 19, 2015 at 8:33 PM, John Youn <John.Youn@xxxxxxxxxxxx> wrote:
>> Patches 1-3:
>> Acked-by: John Youn <johnyoun@xxxxxxxxxxxx>
>>
>> Patch 2:
>> Tested-by: John Youn <johnyoun@xxxxxxxxxxxx>
>>
>> Tested on core version 3.20 using internal TE for un-aligned
>> buffers.
>>
>> I haven't had time to look into the scheduling patches yet. But I
>> agree with you that there are fundamental problems. I'll await
>> your rewrite.
>
> Thanks! I'm going to attempt to at least get things reposted with
> your tags before Thanksgiving. I'm hopeful that I'll actually be able
> to post a RFC patch for the microframe rewrite by then, too! :)
>
> I have something that seems to be sane at
> <https://chromium-review.googlesource.com/#/c/313808/>, but it
> obviously still needs a lot of cleanup. I also need to pick all of
> the things that have landed on Felipe's tree recently and rebase atop
> those.

I didn't succeed at getting something postable. :( I could easily
repost some of the earlier patches (like fixing aligned memory, etc)
if there's a desire for those, but I figured I'd wait until I had
something postable for the microframe scheduler.

I've definitely made progress in the last few days and things are a
bit cleaner at <https://chromium-review.googlesource.com/#/c/313808/3>.
It's also working reasonably well, but I'd still like to understand
some of the behavior I'm seeing before I actually post it to the
mailing list.

I'm going to be away from my computer for about a week, so I'll plan
to pick this up again when I'm back...

-Doug
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