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Date: Sat, 31 Jul 2004 12:05:03 -0400
From: Jeff Garzik <jgarzik@pobox.com>
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To: Willy Tarreau <willy@w.ods.org>
CC: Herbert Xu <herbert@gondor.apana.org.au>, greearb@candelatech.com,
       akpm@osdl.org, alan@redhat.com, jgarzik@redhat.com,
       linux-kernel@vger.kernel.org
Subject: Re: PATCH: VLAN support for 3c59x/3c90x
References: <20040730121004.GA21305@alpha.home.local> <E1BqkzY-0003mK-00@gondolin.me.apana.org.au> <20040731083308.GA24496@alpha.home.local> <410B67B1.4080906@pobox.com> <20040731101152.GG1545@alpha.home.local>
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Willy Tarreau wrote:
> Hi Jeff,
> 
> On Sat, Jul 31, 2004 at 05:34:41AM -0400, Jeff Garzik wrote:
> 
>>Willy Tarreau wrote:
>>
>>> - many (all ?) other drivers already have an MTU parameter, and many
>>
>>s/many/almost none/
> 
> 
> Ok, sorry, I've just checked, they are 6. But I incidentely used the feature
> on 2 of them (dl2k and starfire). But more drivers still have the
> 'static int mtu=1500' preceeded by a comment stating "allow the user to change
> the mtu". Why is it not a #define then, if nobody can change it anymore ?

People can change it all the time with ifconfig.


> Jeff, do you know the absolute hardware limit on the tulip ? I've seen the

It depends on the tulip.

Look at Donald Becker's tulip.c for reference, it has full ->change_mtu 
support (as does 3c59x.c I believe).

	Jeff