netdev - Re: [PATCH 2.6.26-rc9] r8169: Avoid thrashing PCI conf space on RTL_GIGA_MAC_VER

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Message-ID: <20080710190508.GA18477@electric-eye.fr.zoreil.com>
Date:	Thu, 10 Jul 2008 21:05:08 +0200
From:	Francois Romieu <romieu@...zoreil.com>
To:	Marcus Sundberg <marcus@...ate.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.26-rc9] r8169: Avoid thrashing PCI conf space on
	RTL_GIGA_MAC_VER_20.

Marcus Sundberg <marcus@...ate.com> :
> The magic write to register 0x82 will often cause PCI config space on
> my 8168 (PCI ID 10ec:8168, revision 2. mounted in an LG P300 laptop)
> to be filled with ones during driver load, and thus breaking NIC
> operation until reboot. If it does not happen on first driver load it
> can easily be reproduced by unloading and loading the driver a few
> times.

Nice. Thanks.

[...]
> ---
> The magic write is not present in the r8168 driver from RealTek either.
> Does anyone know what it's supposed to do?

No idea. It is not used in the 8101/8102 driver either.

-- 
Ueimor
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