netdev - Re: [PATCH net] skge: dma_sync the whole receive buffer

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Date:	Wed, 14 Aug 2013 12:20:03 +0200
From:	poma <pomidorabelisima@...il.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
CC:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net] skge: dma_sync the whole receive buffer

On 14.08.2013 03:00, Stephen Hemminger wrote:
> On Tue, 13 Aug 2013 15:09:55 -0700 (PDT)
> David Miller <davem@...emloft.net> wrote:
> 
>> From: Stephen Hemminger <stephen@...workplumber.org>
>> Date: Sat, 10 Aug 2013 15:02:07 -0700
>>
>>> The DMA sync should sync the whole receive buffer, not just
>>> part of it. Fixes log messages dma_sync_check.
>>>
>>> Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
>>
>> Applied, but I really suspect that your "check DMA mapping errors"
>> patch has added a serious regression.  A regression much worse than
>> the bug you were trying to fix with that change.
> 
> Argh. The problem is deeper than that. Device got broken somewhere between
> 3.2 and 3.4. My old Dlink card works on 3.2 but gets DMA errors on 3.4.
> The config's are different though so checking that as well.
> 

Can I help you with debugging?
DGE-530T is rather solid device.


poma


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