netdev - RE: e1000e and Intel 82578DM, 10 Mbit/s only

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Message-ID: <8DD2590731AB5D4C9DBF71A877482A90595B0D23@orsmsx509.amr.corp.intel.com>
Date:	Fri, 22 Jan 2010 09:02:50 -0800
From:	"Allan, Bruce W" <bruce.w.allan@...el.com>
To:	Rainer Koenig <Rainer.Koenig@...fujitsu.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: e1000e and  Intel 82578DM, 10 Mbit/s only 


>-----Original Message-----
>From: netdev-owner@...r.kernel.org [mailto:netdev-owner@...r.kernel.org]
>On Behalf Of Rainer Koenig
>Sent: Friday, January 22, 2010 5:40 AM
>To: netdev@...r.kernel.org
>Subject: e1000e and Intel 82578DM, 10 Mbit/s only
>
>Hi,
>
>I'm currently facing a problem on Intel Ibexpeak mainboards that have
>the Intel 82578DM chip for LAN. Device ID is 8086:10ef.
>
>When using the e1000e driver that comes with distributions like
>- Fedora 12
>- RHEL 5.4
>- openSUSE 11.2
>
>then I only get the link up with 10 Mbit/s instead of 1000 Mbit/s.
>
>Driver version is 1.0.2-k2 (according to modinfo)
>
>If I use the e1000e from Sourceforge (Version 1.0.15 or 1.1.2) then
>the machine gets the correct Gigabit link.
>
>So some questions on the e1000e kernel driver:
>
>- will the necessary patches be merged from the sourceforge driver to
>  the vanilla driver?
>
>- why is the modinfo version so "static" on this driver? I've seen lots
>  of patches on the list archives and in git, but modversion seems to be
>  an universal constant at "1.0.2-k2"?
>
>The bad impact of this problem is that with this bug of the kernel
>driver systems affected by this will not pass trough a Red Hat hardware
>certification network test. So guess what my current problem is: yeah,
>right I should do hardware certification with this LAN.
>
>Thanks for your attention & regards
>Rainer
>--
>Dipl.-Inf. (FH) Rainer Koenig
>Project Manager Linux Business Clients
>Dept. TSP CLI R&D SW OSE
>
>Fujitsu Technology Solutions
>Bürgermeister-Ullrich-Str. 100
>86199 Augsburg
>Germany
>
>Telephone: +49-821-804-3321
>Telefax:   +49-821-804-2131
>Mail:      mailto:Rainer.Koenig@...fujitsu.com
>
>Internet         ts.fujtsu.com
>Company Details  ts.fujitsu.com/imprint.html

A patch to resolve this issue has already been committed upstream.

commit f523d2114e93c559dbcf1b49d46b339fc0eda37a
Author: Bruce Allan <bruce.w.allan@...el.com>
Date:   Thu Oct 29 13:45:45 2009 +0000

    e1000e: config PHY via software after resets

    On PCH-based (82577/82578) and some ICH8-based parts (82566) there is an
    issue with the hardware automatically configuring the PHY with contents
    from the EEPROM after the PHY is reset, so do the configuration by the
    driver instead.  This was already similarly done for some 82566 parts in
    e1000_phy_hw_reset_ich8lan() but needs to be done after other resets,
    so move the PHY configuration code to its own function and call after
    all PHY resets.

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