linux-kernel - Re: [REPOST PATCH 0/4] usb: dwc2: Turn on uframe sched everywhere

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Message-ID: <87zhydxair.fsf@linux.intel.com>
Date:   Fri, 27 Jul 2018 13:01:32 +0300
From:   Felipe Balbi <balbi@...nel.org>
To:     Douglas Anderson <dianders@...omium.org>, hminas@...opsys.com,
        gregkh@...uxfoundation.org
Cc:     stefan.wahren@...e.com, grigor.tovmasyan@...opsys.com,
        Bruno Herrera <bruherrera@...il.com>,
        Zhangfei Gao <zhangfei.gao@...aro.org>, john.stultz@...aro.org,
        Stephen Warren <swarren@...dotorg.org>,
        Jerome Brunet <jbrunet@...libre.com>,
        Douglas Anderson <dianders@...omium.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [REPOST PATCH 0/4] usb: dwc2: Turn on uframe sched everywhere

Douglas Anderson <dianders@...omium.org> writes:

> While looking at a dwc2 recently, I noticed that some platforms still
> have the uframe scheduler off.  As far as I know, nothing good can
> come out of having the uframe scheduler off.  Let's turn it on
> everywhere.  Assuming this all works out then some time in the future
> we can gut all the old code that handles the old non-uframe scheduler
> and make everything simpler.
>
> This is a repost of the original "RFT" (request for testing) series I
> posted a few weeks ago but without the "RFT" prefix.  Two of the
> patches in the series now have "Tested-by:" tags.  Since there should
> be nothing platform specific about the uFrame scheduler presumably
> this should mean we're good to go?  Specificaly note that in at least
> one of the "Tested-by" reports this patch caused a notable
> improvement.
>
> In response to the original RFT, some notes about testing this:
> - In general, try to have lots of things plugged in.
> - Plug many different keyboards / mice in.  See if keys are
>   dropped / mouse is jerky.
> - Try USB audio (ideally full speed, not high speed).  How is
>   the audio?
> - If you're brave, try a USB webcam.  How is the video?
>   ...maybe try including patches from crbug.com/820961 too.

Minas??

-- 
balbi

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