linux-kernel - Re: [PATCH ref0] net: add Faraday FTMAC100 10/100 Ethernet driver

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Message-ID: <1298659663.2659.104.camel@edumazet-laptop>
Date:	Fri, 25 Feb 2011 19:47:43 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	ratbert.chuang@...il.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, bhutchings@...arflare.com,
	joe@...ches.com, dilinger@...ued.net, mirqus@...il.com,
	ratbert@...aday-tech.com, Ajit Khaparde <ajit.khaparde@...lex.com>
Subject: Re: [PATCH ref0] net: add Faraday FTMAC100 10/100 Ethernet driver

Le vendredi 25 février 2011 à 19:45 +0100, Eric Dumazet a écrit :
> Le vendredi 25 février 2011 à 10:34 -0800, David Miller a écrit :
> > From: Eric Dumazet <eric.dumazet@...il.com>
> > Date: Fri, 25 Feb 2011 11:52:07 +0100
> > 
> > > Le vendredi 25 février 2011 à 17:45 +0800, Po-Yu Chuang a écrit :
> > > 
> > >> It's a little faster than v5 now. Thanks.
> > >> I will submit the current version later.
> > >> 
> > >> One more question just curious, why 128 bytes?
> > > 
> > > Probably its best for NIU hardware specs
> > > 
> > > You could try 64, as it should be enough for most IP/TCP/UDP processing.
> > 
> > IPV6.
> 
> drivers/net/benet/be.h:70:#define BE_HDR_LEN            64
> 
> Maybe we should have a comment somewhere.
> 
> CC Ajit Khaparde <ajit.khaparde@...lex.com>
> 


A compromise would be to use 128 for the allocation, but only copy 64
bytes.



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