From: David Miller <davem@davemloft.net>
To: jeffrey.t.kirsher@intel.com
Cc: netdev@vger.kernel.org, gospo@redhat.com, bphilips@novell.com,
stable@kernel.org, bruce.w.allan@intel.com
Subject: Re: [net-2.6 PATCH] e1000e: 82577/82578 PHY register access issues
Date: Tue, 27 Jul 2010 21:06:42 -0700 (PDT) [thread overview]
Message-ID: <20100727.210642.137855605.davem@davemloft.net> (raw)
In-Reply-To: <20100727222808.25500.11033.stgit@localhost.localdomain>
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Tue, 27 Jul 2010 15:28:46 -0700
> From: Bruce Allan <bruce.w.allan@intel.com>
>
> 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: stable@kernel.org
> Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Applied, thanks.
next prev parent reply other threads:[~2010-07-28 4:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-27 22:28 [net-2.6 PATCH] e1000e: 82577/82578 PHY register access issues Jeff Kirsher
2010-07-28 4:06 ` David Miller [this message]
2010-08-03 1:04 ` Jeff Kirsher
2010-08-03 4:10 ` David Miller
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