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Date: Fri, 01 Feb 2013 22:01:24 +0100
From: Andre Oppermann <andre@freebsd.org>
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To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: svn commit: r246204 - head/sys/arm/include
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On 01.02.2013 21:23, Adrian Chadd wrote:
> .. before you make that assumption, please re-visit some the ..
> lower-end integrated ethernet MACs in embedded chips.
>
> I don't know whether the Atheros stuff does (I think it does, but I
> don't know under what conditions it's possible.)
>
> Maybe have it by default not return jumbo mbufs, and if a driver wants
> jumbo mbufs it can explicitly ask for them.

Jumbo frames do not see wide-spread use.  If they are used, then
in data centre LAN environments and possibly also inter-datacenter.
That is high performance environments.

I seriously doubt that lower-end ethernet MACs you're referring to
fit that bill.

-- 
Andre