netdev - Re: [UPDATED] [NET-NEXT PATCH 3/3] e1000e: add support for new 82574L part

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Message-ID: <20080818160040.GA17369@ajones-laptop.nbttech.com>
Date:	Mon, 18 Aug 2008 09:00:40 -0700
From:	Arthur Jones <ajones@...erbed.com>
To:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
CC:	"jeff@...zik.org" <jeff@...zik.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	Bruce Allan <bruce.w.allan@...el.com>
Subject: Re: [UPDATED] [NET-NEXT PATCH 3/3] e1000e: add support for new
	82574L part

Hi Jeff, ...

On Wed, Aug 13, 2008 at 05:38:44PM -0700, Jeff Kirsher wrote:
> From: Bruce Allan <bruce.w.allan@...el.com>
> 
> This new part has the same feature set as previous parts with the addition
> of MSI-X support.
> 
> Signed-off-by: Bruce Allan <bruce.w.allan@...el.com>
> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>

I've applied this patch on top of your previous
e1000e fixes to Friday's linus git tree and when
I run the Tx Unit Hang test from:

http://e1000.sourceforge.net/doku.php?id=tx_unit_hang

I get a Tx Unit Hang after a few hours:

0000:03:00.0: eth4: Detected Tx Unit Hang:
  TDH                  <ed>
  TDT                  <ed>
  next_to_use          <ed>
  next_to_clean        <ff>
buffer_info[next_to_clean]:
  time_stamp           <100a2dd46>
  next_to_watch        <1>
  jiffies              <100a2e013>
  next_to_watch.status <0>

This is perhaps a dup of the e1000.sf.net bug
2040298 against the linux 2.6.26 + 0.4.1.7 intel
e1000e driver:

http://sourceforge.net/tracker/index.php?func=detail&aid=2040298&group_id=42302&atid=447449

The system info is the same as in that bug, only
the kernel and driver have changed...

Arthur
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