netdev - Re: [E1000-devel] [PATCH V2 0/7] e1000: convert to build_skb/napi_gro

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Message-ID: <1409721530.2384.28.camel@jtkirshe-mobl>
Date:	Tue, 02 Sep 2014 22:18:50 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	Florian Westphal <fw@...len.de>
Cc:	e1000-devel@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: Re: [E1000-devel] [PATCH V2 0/7] e1000: convert to
 build_skb/napi_gro_frags api

On Tue, 2014-09-02 at 14:24 +0200, Florian Westphal wrote:
> Changes since v1:
>  - in last patch, remove unneeded parens and casts,
>  pointed out by Sergei Shtylyov.
> 
> v1 cover letter:
> 
> e1000 driver preallocates skbs, then sends them up the stack.
> 
> This patch series changes the rx routine to only preallocate
> packet buffers, then allocate the skb right before sending the
> packet up the stack.
> 
> This gives slight performance inprovements as the skb will be
> fresh in the cache once its allocated/initialized.
> 
> The default-mtu 1500 path is converted to
> build_skb()/netdev_alloc_frag.
> 
> Jumbo path is converted to napi_gro_frags.
> 
> Note that this has only been tested with
> kvms e1000 emulation.

Thanks Florian, I have added this series to my queue.

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