netdev - Re: [PATCH] net: use hardware buffer pool to allocate skb

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Message-ID: <1413364521.12304.43.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 15 Oct 2014 02:15:21 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"Jiafei.Pan@...escale.com" <Jiafei.Pan@...escale.com>
Cc:	"davem@...emloft.net" <davem@...emloft.net>,
	"jkosina@...e.cz" <jkosina@...e.cz>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"LeoLi@...escale.com" <LeoLi@...escale.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>
Subject: Re: [PATCH] net: use hardware buffer pool to allocate skb

On Wed, 2014-10-15 at 05:43 +0000, Jiafei.Pan@...escale.com wrote:

> For my case, there are some shortcoming to use page frags. Firstly, I have to
> modify each Ethernet drivers to support it especially I don’t which vendor's
> driver the customer will use. Secondly, it is not enough only 
> build skb by 'lock' pages, the buffer address comes from hardware block and
> should be aligned to hardware block.

So you align to hardware block. What is the problem with this ?


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