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From: "Bjørn Mork" <bjorn@mork.no>
To: "Pasi Kärkkäinen" <pasik@iki.fi>
Cc: Dan Williams <dcbw@redhat.com>,
	netdev@vger.kernel.org, linux-usb@vger.kernel.org,
	Enrico Mioso <mrkiko.rs@gmail.com>,
	Oliver Neukum <oliver@neukum.org>
Subject: Re: [PATCH net-next v6 0/3] The huawei_cdc_ncm driver / E3276 problem
Date: Mon, 17 Mar 2014 14:15:23 +0100	[thread overview]
Message-ID: <87y509kluc.fsf@nemi.mork.no> (raw)
In-Reply-To: <20140317124555.GL3200@reaktio.net> ("Pasi Kärkkäinen"'s message of "Mon, 17 Mar 2014 14:45:55 +0200")

Pasi Kärkkäinen <pasik@iki.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.

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.


Bjørn

  reply	other threads:[~2014-03-17 13:15 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-04  8:50 [PATCH net-next v6 0/3] The huawei_cdc_ncm driver Bjørn Mork
2013-11-04  8:50 ` [PATCH net-next v6 1/3] net: cdc_ncm: Export cdc_ncm_{tx,rx}_fixup functions for re-use Bjørn Mork
2013-11-04  8:50 ` [PATCH net-next v6 2/3] net: huawei_cdc_ncm: Introduce the huawei_cdc_ncm driver Bjørn Mork
2013-11-04  8:50 ` [PATCH net-next v6 3/3] net: cdc_ncm: remove non-standard NCM device IDs Bjørn Mork
2013-11-05 20:22 ` [PATCH net-next v6 0/3] The huawei_cdc_ncm driver David Miller
2014-03-13 20:25 ` [PATCH net-next v6 0/3] The huawei_cdc_ncm driver / E3276 problem Pasi Kärkkäinen
2014-03-13 21:41   ` Dan Williams
2014-03-13 22:08     ` Pasi Kärkkäinen
2014-03-14  7:55       ` Pasi Kärkkäinen
     [not found]         ` <20140314075548.GX3200-GxtO3QLqHcLR7s880joybQ@public.gmane.org>
2014-03-14  8:34           ` Bjørn Mork
2014-03-14  8:41             ` Pasi Kärkkäinen
2014-03-14  8:58               ` Bjørn Mork
2014-03-14  9:05                 ` Pasi Kärkkäinen
2014-03-14  9:24                   ` Enrico Mioso
2014-03-14  9:24                   ` Bjørn Mork
     [not found]                     ` <87ob19nndo.fsf-lbf33ChDnrE/G1V5fR+Y7Q@public.gmane.org>
2014-03-14  9:37                       ` Enrico Mioso
2014-03-14 12:59                       ` Pasi Kärkkäinen
2014-03-14 13:33                         ` Bjørn Mork
2014-03-14 14:25                           ` Pasi Kärkkäinen
2014-03-14 17:16                             ` Dan Williams
     [not found]                               ` <1394817415.5829.6.camel-ZWpNTBV2bRGs1BDpvl8NfQ@public.gmane.org>
2014-03-14 17:33                                 ` Pasi Kärkkäinen
     [not found]                             ` <20140314142559.GD3200-GxtO3QLqHcLR7s880joybQ@public.gmane.org>
2014-03-17 11:31                               ` Bjørn Mork
2014-03-17 11:59                                 ` Pasi Kärkkäinen
     [not found]                                   ` <20140317115919.GK3200-GxtO3QLqHcLR7s880joybQ@public.gmane.org>
2014-03-17 12:45                                     ` Pasi Kärkkäinen
2014-03-17 13:15                                       ` Bjørn Mork [this message]
2014-03-17 13:17                                         ` Pasi Kärkkäinen
     [not found]                                           ` <20140317131731.GM3200-GxtO3QLqHcLR7s880joybQ@public.gmane.org>
2014-03-17 14:23                                             ` Bjørn Mork
     [not found]                                               ` <87txawlx9h.fsf-lbf33ChDnrE/G1V5fR+Y7Q@public.gmane.org>
2014-03-17 14:46                                                 ` Enrico Mioso
2014-03-17 15:05                                               ` Pasi Kärkkäinen
2014-03-17 15:07                                                 ` Bjørn Mork
     [not found]                                 ` <87k3btm57a.fsf-lbf33ChDnrE/G1V5fR+Y7Q@public.gmane.org>
2014-03-17 12:56                                   ` Bjørn Mork
2014-03-17 13:10                                     ` Bjørn Mork
     [not found]       ` <385896107.16855.1394783754007.JavaMail.mobile-sync@vcpd12>
2014-03-14  7:58         ` Mrkiko Rs
2014-03-14  8:01           ` Pasi Kärkkäinen

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