From: Rick Jones <rick.jones2@hp.com>
To: David Miller <davem@davemloft.net>
Cc: herbert@gondor.apana.org.au, bhutchings@solarflare.com,
buytenh@wantstofly.org, netdev@vger.kernel.org,
akarkare@marvell.com, nico@cam.org, dale@farnsworth.org
Subject: Re: using software TSO on non-TSO capable netdevices
Date: Thu, 07 Aug 2008 13:32:05 -0700 [thread overview]
Message-ID: <489B5BC5.3030600@hp.com> (raw)
In-Reply-To: <20080806.230741.137564172.davem@davemloft.net>
David Miller wrote:
> So I had this idea. My goal is to minimize the number of DMA
> mappings the driver has to make.
>
> We don't touch anything in the original TSO skb. However we expand
> the headroom (if necessary) and in the area in front of skb->data we
> build the header areas for the sub-TSO frames, one by one.
>
> We give the driver some iterator functions that walk through the
> header areas and compute offset/length pairs into the
> skb_shared_info() page list.
Is that like Solaris Multi Data Transmit?
rick jones
next prev parent reply other threads:[~2008-08-07 20:32 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-30 23:50 using software TSO on non-TSO capable netdevices Lennert Buytenhek
2008-07-30 23:56 ` David Miller
2008-07-31 0:41 ` Lennert Buytenhek
2008-07-31 1:10 ` David Miller
2008-07-31 1:45 ` Lennert Buytenhek
2008-07-31 3:54 ` Herbert Xu
2008-07-31 9:45 ` Lennert Buytenhek
2008-07-31 10:55 ` Herbert Xu
2008-07-31 12:37 ` Lennert Buytenhek
2008-07-31 12:59 ` Herbert Xu
2008-08-03 8:23 ` David Miller
2008-07-31 7:34 ` Ilpo Järvinen
2008-07-31 9:50 ` Lennert Buytenhek
2008-07-31 10:27 ` Ilpo Järvinen
2008-07-31 2:29 ` Herbert Xu
2008-07-31 2:36 ` Lennert Buytenhek
2008-07-31 3:03 ` Herbert Xu
2008-07-31 6:55 ` Ilpo Järvinen
2008-07-31 9:39 ` Lennert Buytenhek
2008-07-31 10:14 ` Lennert Buytenhek
2008-07-31 10:16 ` David Miller
2008-07-31 12:25 ` Lennert Buytenhek
2008-07-31 12:35 ` David Miller
2008-07-31 13:19 ` Ben Hutchings
2008-07-31 13:27 ` Herbert Xu
2008-08-03 8:19 ` David Miller
2008-08-03 8:55 ` Herbert Xu
2008-08-07 6:07 ` David Miller
2008-08-07 6:15 ` Herbert Xu
2008-09-12 4:08 ` David Miller
2008-08-07 11:50 ` Lennert Buytenhek
2008-08-07 20:32 ` Rick Jones [this message]
2008-08-07 22:44 ` David Miller
2008-07-31 17:00 ` Rick Jones
2008-07-31 17:45 ` Lennert Buytenhek
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