netdev - Re: [PATCH net-next 0/4] VXLAN: segmentation offload

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Date:	Thu, 7 Mar 2013 21:40:12 -0800
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Pravin B Shelar <pshelar@...ira.com>
Cc:	davem@...emloft.net, netdev@...r.kernel.org, jesse@...ira.com
Subject: Re: [PATCH net-next 0/4] VXLAN: segmentation offload

On Thu,  7 Mar 2013 15:21:30 -0800
Pravin B Shelar <pshelar@...ira.com> wrote:

> Following patches add segmentation offload to VXLAN. These
> patches shows performance improvement from 3.9G to 5.8G (+50%)
> with netperf single process TCP_STREAM test on 10G network.
> 
> Pravin B Shelar (4):
>   net: Add skb_headers_offset_update helper function.
>   tunneling: Capture inner mac header during encapsulation.
>   tunneling: Add generic Tunnel segmentation.
>   VXLAN: Use UDP Tunnel segmention.
> 
>  drivers/net/vxlan.c             |   21 ++++++-
>  include/linux/netdev_features.h |    7 +-
>  include/linux/skbuff.h          |   36 ++++++++++++
>  net/core/ethtool.c              |    1 +
>  net/core/skbuff.c               |   36 +++++-------
>  net/ipv4/af_inet.c              |    6 ++-
>  net/ipv4/tcp.c                  |    1 +
>  net/ipv4/udp.c                  |  116 ++++++++++++++++++++++++++++++--------
>  net/ipv6/ip6_offload.c          |    1 +
>  net/ipv6/udp_offload.c          |   10 +++-
>  10 files changed, 181 insertions(+), 54 deletions(-)
> 
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Looks good, I wonder how well this will work with vendors plans to
offload segmentation of tunnel packets in hardware?

Acked-by: Stephen Hemminger <stephen@...workplumber.org>
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