netdev - Re: r8169 mac reading/writing broken

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Message-Id: <20100327.163005.28815553.davem@davemloft.net>
Date:	Sat, 27 Mar 2010 16:30:05 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	ben@...adent.org.uk
Cc:	romieu@...zoreil.com, timo.teras@....fi, ivecera@...hat.com,
	netdev@...r.kernel.org
Subject: Re: r8169 mac reading/writing broken

From: Ben Hutchings <ben@...adent.org.uk>
Date: Sat, 27 Mar 2010 23:20:54 +0000

> I wonder whether there are special rules that need to be followed
> for updating such registers and which the driver is not following,
> or a more general bug in the Realtek chips that should be
> consistently worked-around for all 64-bit registers.

I suspect that MMIO to 64-bit registers in 32-bit chunks is not
reliable with these parts, given all of the information we have so
far.
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