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Subject: Re: [PATCH ref0] net: add Faraday FTMAC100 10/100 Ethernet driver
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Po-Yu Chuang <ratbert.chuang@gmail.com>
Cc: David Miller <davem@davemloft.net>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, bhutchings@solarflare.com,
        joe@perches.com, dilinger@queued.net, mirqus@gmail.com,
        ratbert@faraday-tech.com, Ajit Khaparde <ajit.khaparde@emulex.com>
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Date: Tue, 01 Mar 2011 06:53:26 +0100
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Le mardi 01 mars 2011 à 13:45 +0800, Po-Yu Chuang a écrit :
> Hi Eric,
> 
> On Sat, Feb 26, 2011 at 2:47 AM, Eric Dumazet <eric.dumazet@gmail.com> wrote:

> >
> > A compromise would be to use 128 for the allocation, but only copy 64
> > bytes.
> 
> I will use this way and submit v7 later.
> 

BTW, even with IPV6, the first 64 bytes contain "RPS" header

We changed NET_SKB_PAD a while back and added this comment in
include/linux/skbuff.h

NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)


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