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Re: [Xen-devel] [PATCH 0/4] Support accelerated network plugin modules

To: kmansley@xxxxxxxxxxxxxx (Kieran Mansley)
Subject: Re: [Xen-devel] [PATCH 0/4] Support accelerated network plugin modules
From: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Wed, 09 May 2007 19:37:17 +1000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
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Kieran Mansley <kmansley@xxxxxxxxxxxxxx> wrote:
> This series of patches adds support to netfront and netback to allow
> accelerated drivers to plug in and support a fast path for network
> traffic.  This is designed to allow use of virtualisable "smart" NICs
> directly from domU, with help/control from dom0.  Experiments with
> Solarflare hardware have shown a doubling in network performance when
> using this approach on 10Gbps networks, compared to the traditional
> network path through netfront/netback.  i.e. Performance from domU
> approaches that normally seen in dom0.

Could you post some examples of how these hooks are actually used by
your driver? Without them it's hard for me to assess whether these
hooks are appropriate.

Also, since netfront may be merged into upstream Linux soon, please
cc these patches to netdev@xxxxxxxxxxxxxxx so folks there can also
comment.

Thanks,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt

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