Re: [PATCH v5] xhci: Bad Ethernet performance plugged in ASM1042A host

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On Mon, Jul 10, 2017 at 11:38 PM,  <Mario.Limonciello@xxxxxxxx> wrote:
>> -----Original Message-----
>> From: Jiahau Chang [mailto:jiahau@xxxxxxxxx]
>> Sent: Thursday, July 6, 2017 8:58 PM
>> To: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
>> Cc: linux-usb@xxxxxxxxxxxxxxx; mathias.nyman@xxxxxxxxx;
>> David.Laight@xxxxxxxxxx; gregkh@xxxxxxxxxxxxxxxxxxx;
>> felipe.balbi@xxxxxxxxxxxxxxx; brain_lee@xxxxxxxxxxxxxx; Limonciello, Mario
>> <Mario_Limonciello@xxxxxxxx>; Justin_CY_Chen@xxxxxxxxxxxxxx; Wang, Keith
>> <Keith_Wang@xxxxxxxx>; Yd_Tseng@xxxxxxxxxxxxxx; Jiahau Chang
>> <Lars_chang@xxxxxxxxxxxxxx>; Ian Pilcher <arequipeno@xxxxxxxxx>
>> Subject: Re: [PATCH v5] xhci: Bad Ethernet performance plugged in ASM1042A host
>>
>> 2017-06-28 21:42 GMT+08:00 Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>:
>> > On 22.06.2017 07:49, Jiahau Chang wrote:
>> >>
>> >> When USB Ethernet is plugged in ASMEDIA ASM1042A xHCI host, bad
>> >> performance was manifesting in Web browser use (like download
>> >> large file such as ISO image). It is known limitation of
>> >> ASM1042A that is not compatible with driver scheduling,
>> >> As a workaround we can modify flow control handling of ASM1042A.
>> >> The register we modify is changes the behavior
>> >>
>> >> Signed-off-by: Jiahau Chang <Lars_chang@xxxxxxxxxxxxxx>
>> >> Signed-off-by: Ian Pilcher <arequipeno@xxxxxxxxx>
>> >> ---
>> >
>> >
>> > Thanks, looks good, but checkpatch complains about:
>> >
>> >> +               usleep_range(50, 50);
>> >
>> >
>> > having same min and max value.
>> > Does usleep_range(40,60) work for you? or some other range?
>> >
>> It works to use usleep_range(40,60);
>> Thanks for help us to upstream the patch.
>>
>> > I can change that myself, no need to resend.
>> >
>
> Matthias,
>
> Can you still get this in for 4.13?

He is on vacation for few weeks.

Perhaps in rcX.


-- 
With Best Regards,
Andy Shevchenko
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