linux-kernel - Re: [PATCH] sky2: jumbo frame regression fix

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Message-ID: <4703D9B6.109@tmr.com>
Date:	Wed, 03 Oct 2007 14:04:38 -0400
From:	Bill Davidsen <davidsen@....com>
To:	pomac@...or.com
CC:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	Jeff Garzik <jgarzik@...ox.com>, Linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH] sky2: jumbo frame regression fix

Ian Kumlien wrote:
> On tis, 2007-10-02 at 18:02 -0700, Stephen Hemminger wrote:
>> Remove unneeded check that caused problems with jumbo frame sizes.
>> The check was recently added and is wrong.
>> When using jumbo frames the sky2 driver does fragmentation, so
>> rx_data_size is less than mtu.
> 
> Confirmed working.
> 
> Now running with 9k mtu with no errors, =)

Have you verified that you are actually getting jumbo packets out of the 
NIC? I had one machine which did standard packets silently using sky2 
and jumbo using sk98lin. I was looking for something else with tcpdump 
and got one of those WTF moments when I saw all the tiny packets.

-- 
Bill Davidsen <davidsen@....com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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