netdev - Re: [net-next-2.6 PATCH 09/12] e1000e: fix checks for manageability enabled and management pass-through

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Date:	Wed, 12 May 2010 23:32:27 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jeffrey.t.kirsher@...el.com
Cc:	netdev@...r.kernel.org, gospo@...hat.com, bruce.w.allan@...el.com
Subject: Re: [net-next-2.6 PATCH 09/12] e1000e: fix checks for
 manageability enabled and management pass-through

From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Date: Mon, 10 May 2010 18:01:51 -0700

> From: Bruce Allan <bruce.w.allan@...el.com>
> 
> The mac->arc_subsystem was being incorrectly used to flag whether or not
> manageability was enabled when it should only be used to state whether the
> ARC (Host interface) subsystem is available on a particular MAC _and_ only
> valid when any manageability is enabled. The ARC subsystem is currently
> only available on 80003es2lan and 82573 parts supported by the driver.
> 
> A new flag, has_fwsm, is introduced to be used when checking if
> manageability is enabled but only on parts that acutally have an FWSM
> register. While the above parts have an FWSM register, there are other
> parts that have FWSM but do not have support for the ARC subsystem,
> namely 82571/2 and ICHx/PCH.
> 
> And then there are parts that have manageability, but do not have either
> FWSM register or support for the ARC subsystem - these are 82574 and 82583.
> 
> For 80003es2lan, 82571/2/3 and ICH/PCH parts, this patch makes no
> functional changes, it only corrects the usage of the manageability flags.
> For 82574 and 82583, it fixes the incorrect accesses of the non-existent
> FWSM register and ARC subsystem as well as corrects the check for
> management pass-through.
> 
> Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

Applied.
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