netdev - Re: Marvell 88E8056 gigabit ethernet controller

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Message-ID: <283388.84897.qm@web38905.mail.mud.yahoo.com>
Date:	Sat, 18 Aug 2007 06:59:08 -0700 (PDT)
From:	Kevin E <kevin360@...oo.com>
To:	Willy Tarreau <w@....eu>
Cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: Marvell 88E8056 gigabit ethernet controller

--- Willy Tarreau <w@....eu> wrote:

> OK, in this trace, both controllers are on the same
> bus. The broken
> one has 'Capabilities: [100] Advanced Error
> Reporting' the other
> does not have, and the bridge to this bus has two
> more capabilities :
> 'Capabilities: [100] Virtual Channel' and
> 'Capabilities: [180] Unknown (5)'.
> 
> I don't know whether it can jutify a different
> behaviour. Also, maybe this
> is caused by a minuscule difference in the BIOS
> setup ?

I just checked the BIOS' between the two machines and
there was one slight difference.  Working machine I
had serial port turned off and the parallel port setup
differently, so I made changes to the broken machines
BIOS so they are identical.  After making the change I
checked 'lspci -vvv' on the broken one and it's the
same output as before.  

I tested the Marvell interface to see if it made any
difference and the line died after about a second of
transfering data.  dmesg reported this:

sky2 eth1: enabling interface
sky2 eth1: ram buffer 0K
sky2 eth1: Link is up at 100 Mbps, full duplex, flow
control both
sky2 0000:04:00.0: error interrupt status=0x80000000
sky2 eth1: hw error interrupt status 0x8
sky2 eth1: MAC parity error
sky2 0000:04:00.0: error interrupt status=0x80000000
sky2 eth1: hw error interrupt status 0x8
sky2 eth1: MAC parity error
sky2 eth1: disabling interface

Kevin

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