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Date:	Tue, 27 Jul 2010 21:06:42 -0700 (PDT)
From:	David Miller <>
Subject: Re: [net-2.6 PATCH] e1000e: 82577/82578 PHY register access issues

From: Jeff Kirsher <>
Date: Tue, 27 Jul 2010 15:28:46 -0700

> From: Bruce Allan <>
> The MAC-PHY interconnect on 82577/82578 uses a power management feature
> (called K1) which must be disabled when in 1Gbps due to a hardware issue on
> these parts.  The #define bit setting used to enable/disable K1 is
> incorrect and can cause PHY register accesses to stop working altogether
> until the next device reset.  This patch sets the register correctly.
> This issue is present in kernels since 2.6.32.
> CC:
> Signed-off-by: Bruce Allan <>
> Tested-by: Jeff Pieper <>
> Signed-off-by: Jeff Kirsher <>

Applied, thanks.
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