From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: Chris Friesen <cfriesen@nortelnetworks.com>,
"David S. Miller" <davem@redhat.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
kernel@nn7.de, Linux Kernel list <linux-kernel@vger.kernel.org>,
netdev@oss.sgi.com
Subject: Re: sungem - ifconfig eth0 mtu 1300 -> oops
Date: Tue, 22 Jun 2004 11:03:34 -0500 [thread overview]
Message-ID: <1087920212.22687.50.camel@gaston> (raw)
In-Reply-To: <40D84A9B.8010503@pobox.com>
On Tue, 2004-06-22 at 10:04, Jeff Garzik wrote:
> Chris Friesen wrote:
> > Just a quick question. Does the sungem chip support jumbo frames? I'd
> > like to use MTU of 9000 to make large local transfers more efficient,
> > but it didn't seem to work last time I checked.
>
>
> Are you 100% certain you configured the other side to support jumbo?
>
> Jumbo frames are non-standard, and sometimes require configuring MTU on
> the switch or remote network card (if directly connected).
Well, it's not enabled in the driver I think, or at least it wasn't last
time I looked. Dave told me the chip fifo's are too small to do anything
useful with jumbo frames.
Ben.
next prev parent reply other threads:[~2004-06-22 16:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1087568322.4455.22.camel@localhost>
2004-06-21 12:33 ` sungem - ifconfig eth0 mtu 1300 -> oops Herbert Xu
2004-06-21 13:03 ` Herbert Xu
2004-06-21 20:24 ` Soeren Sonnenburg
2004-06-21 21:11 ` David S. Miller
2004-06-22 14:53 ` Chris Friesen
2004-06-22 15:04 ` Jeff Garzik
2004-06-22 16:03 ` Benjamin Herrenschmidt [this message]
2004-06-22 19:35 ` David S. Miller
2004-06-21 13:56 ` Manuel Arostegui Ramirez
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