linux-kernel - Re: problems with e1000 and jumboframes

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Message-ID: <20060804194209.GA25167@2ka.mipt.ru>
Date:	Fri, 4 Aug 2006 23:42:11 +0400
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Chris Leech <chris.leech@...il.com>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>, arnd@...dnet.de,
	olel@....pl, linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: problems with e1000 and jumboframes

On Fri, Aug 04, 2006 at 08:34:46AM -0700, Chris Leech (chris.leech@...il.com) wrote:
> So how many skb allocation schemes do you code into a single driver?
> Kmalloc everything, page alloc everything, combination of kmalloc and
> page buffers for hardware that does header split?  That's three
> versions of the drivers receive processing and skb allocation that
> need to be maintained.

At least try to create scheme which will not end up in 32k allocation in
atomic context. Generally I would recommend to use frag_list as much as
possible (or you can reuse skb list).
 
> - Chris

-- 
	Evgeniy Polyakov
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