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From: Ian Kumlien <pomac@vapor.com>
To: Bill Davidsen <davidsen@tmr.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>,
	Jeff Garzik <jgarzik@pobox.com>,
	Linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] sky2: jumbo frame regression fix
Date: Wed, 03 Oct 2007 20:28:21 +0200	[thread overview]
Message-ID: <1191436101.26233.32.camel@localhost> (raw)
In-Reply-To: <4703D9B6.109@tmr.com>

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On ons, 2007-10-03 at 14:04 -0400, Bill Davidsen wrote:
> 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.

20:27:06.542461 IP pi.local > blue.local: ICMP echo request, id 27173, seq 42, length 8008
20:27:06.543136 IP blue.local > pi.local: ICMP echo reply, id 27173, seq 42, length 8008

That should solve it for us, right? =)

-- 
Ian Kumlien <pomac () vapor ! com> -- http://pomac.netswarm.net

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  reply	other threads:[~2007-10-03 19:03 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1191372129.26233.12.camel@localhost>
2007-10-03  1:02 ` [PATCH] sky2: jumbo frame regression fix Stephen Hemminger
2007-10-03  1:07   ` Jeff Garzik
2007-10-03  4:53     ` Stephen Hemminger
2007-10-03  4:58       ` Jeff Garzik
2007-10-03  1:34   ` Ian Kumlien
2007-10-03  4:59     ` Stephen Hemminger
2007-10-03  7:37       ` Ian Kumlien
2007-10-03  8:29       ` iank
2007-11-24 16:23       ` [SKY2] Problems (2.6.24-rc3-git1) Ian Kumlien
2007-10-03 18:04     ` [PATCH] sky2: jumbo frame regression fix Bill Davidsen
2007-10-03 18:28       ` Ian Kumlien [this message]
2007-10-03 17:39   ` Jeff Garzik

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