From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Miller <davem@davemloft.net>,
netdev@vger.kernel.org,
Jesse Brandeburg <jesse.brandeburg@gmail.com>
Subject: Re: [RFC] avoid unnecessary alignement overhead in skb->data allocation.
Date: Mon, 7 Aug 2006 11:31:03 +0400 [thread overview]
Message-ID: <20060807073103.GA11283@2ka.mipt.ru> (raw)
In-Reply-To: <20060807072816.GA5404@gondor.apana.org.au>
On Mon, Aug 07, 2006 at 05:28:16PM +1000, Herbert Xu (herbert@gondor.apana.org.au) wrote:
> On Mon, Aug 07, 2006 at 11:24:23AM +0400, Evgeniy Polyakov wrote:
> >
> > > I'd hope not. Apparently they are capable of putting data into
> > > individual pages and chaining them together. The only problem
> >
> > Unfortunately not all chips are capable to do this.
>
> No not all chips are capable of header-splitting. However, from what
> Jesse was saying it sounded as if all (or most?) chips are capable of
> storing data cross pages.
Only if they form contiguous region?
Jesse, is it possible for every e1000 chip to split frame into several
page-sized chunks i.e. create some kind of receiving scatter-gather?
> Cheers,
> --
> Visit Openswan at http://www.openswan.org/
> Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
> Home Page: http://gondor.apana.org.au/~herbert/
> PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
Evgeniy Polyakov
next prev parent reply other threads:[~2006-08-07 7:31 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-07 6:01 [RFC] avoid unnecessary alignement overhead in skb->data allocation Evgeniy Polyakov
2006-08-07 6:23 ` David Miller
2006-08-07 6:30 ` Evgeniy Polyakov
2006-08-07 7:17 ` Herbert Xu
2006-08-07 7:24 ` Evgeniy Polyakov
2006-08-07 7:28 ` Herbert Xu
2006-08-07 7:31 ` Evgeniy Polyakov [this message]
2006-08-07 7:39 ` Herbert Xu
2006-08-08 0:09 ` Jesse Brandeburg
2006-08-08 0:41 ` David Miller
2006-08-08 5:24 ` Evgeniy Polyakov
2006-08-08 5:41 ` Herbert Xu
2006-08-08 5:55 ` Evgeniy Polyakov
2006-08-07 6:29 ` Herbert Xu
2006-08-07 6:36 ` Evgeniy Polyakov
2006-08-07 6:42 ` Herbert Xu
2006-08-07 8:05 ` Eric Dumazet
2006-08-07 8:14 ` Evgeniy Polyakov
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