netdev - Re: EG20T and Micrel KSZ9021 Gigabit Ethernet

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Message-ID: <507D97B7.5090002@intcomgrp.com>
Date:	Tue, 16 Oct 2012 13:21:59 -0400
From:	James Kosin <jkosin@...comgrp.com>
To:	unlisted-recipients:; (no To-header on input)
CC:	<netdev@...r.kernel.org>
Subject: Re: EG20T and Micrel KSZ9021 Gigabit Ethernet

I have to remember to use plain text only....

On 10/16/2012 1:13 PM, James Kosin wrote:
> Hmmm... interesting turn of events.
>
> The problem seems to be in 10 speed support.  I hooked the Ethernet
> PHY to a100TX port and don't get these errors.
>
> James
>
> On 10/5/2012 5:09 PM, Francois Romieu wrote:
>> (please don't top post)
>>
>> James Kosin <jkosin@...comgrp.com> :
>>> The driver is always reporting:
>>>     [...] pch_gbe: Transfer Carrier Sense Error
>> You should send more information. Say dmesg, link stats (ip link),
>> ethtool information, stats and offload settings.
>>
>> We have a small Micrel ksz9021 phy driver that the pch_gbe driver does
>> not use and the latter pokes into some phy specific register (0x10) that
>> the Micrel document does not include in its list of vendor registers...
>>
>> Does your motherboard vendor offer some linux driver ?
>>
>> /note to myself: pch_gbe should use standard mii.h registers instead
>> of defining its own redundant set of registers.
>>
>> --
>> Ueimor
>>
>

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