netdev - Re: [PATCH net-next v6 0/3] The huawei_cdc

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Date:	Mon, 17 Mar 2014 15:17:31 +0200
From:	Pasi Kärkkäinen <pasik@....fi>
To:	Bjørn Mork <bjorn@...k.no>
Cc:	Dan Williams <dcbw@...hat.com>, netdev@...r.kernel.org,
	linux-usb@...r.kernel.org, Enrico Mioso <mrkiko.rs@...il.com>,
	Oliver Neukum <oliver@...kum.org>
Subject: Re: [PATCH net-next v6 0/3] The huawei_cdc_ncm driver / E3276
 problem

On Mon, Mar 17, 2014 at 02:15:23PM +0100, Bjørn Mork wrote:
> Pasi Kärkkäinen <pasik@....fi> writes:
> 
> > After playing with it for a while I got this:
> >
> > [ 1082.972880] cdc_ncm_setup: huawei_cdc_ncm 3-1:1.1: dwNtbInMaxSize=262144 dwNtbOutMaxSize=32768 wNdpOutPayloadRemainder=2 wNdpOutDivisor=4 wNdpOutAlignment=4 wNtbOutMaxDatagrams=0 flags=0x1f
> > [ 1082.972893] cdc_ncm_setup: huawei_cdc_ncm 3-1:1.1: Using default maximum receive length=32768
> > [ 1082.973281] cdc_ncm_setup: huawei_cdc_ncm 3-1:1.1: Setting NTB format to 16-bit failed
> >
> > .. which looks to be related..
> 
> Yes, that is what I expected after thinking long enough to realize that
> I could just read this out of the usbmon dump you provided.
>

:)
 
> Thanks a lot for all your help providing extremely useful debug info
> here.  This helped fixing (soon, anyway :-) a nasty bug, hitting only a
> few devices.
> 

No problems. Happy to help to get this device working :) 

> I still don't know for sure, but I do hope this bug is the real cause of
> the problems you are having.  I'll send you a patch for testing as soon
> as it is ready.
> 

Sure. I'll be happy to test the patch!

> 
> Bjørn

Thanks,

-- Pasi

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