RE: [PATCH net-next,v2] hyperv: Add handling of IP header with option field in netvsc_set_hash()

From: Haiyang Zhang
Date: Tue Oct 14 2014 - 18:21:13 EST




> -----Original Message-----
> From: David Miller [mailto:davem@xxxxxxxxxxxxx]
> Sent: Tuesday, October 14, 2014 5:37 PM
> To: Haiyang Zhang
> Cc: netdev@xxxxxxxxxxxxxxx; KY Srinivasan; olaf@xxxxxxxxx;
> jasowang@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; driverdev-
> devel@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [PATCH net-next,v2] hyperv: Add handling of IP header with option
> field in netvsc_set_hash()
>
> From: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> Date: Tue, 14 Oct 2014 15:16:28 -0700
>
> > In case that the IP header has optional field at the end, this patch
> > will get the port numbers after that field, and compute the hash.
> >
> > Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> > Reviewed-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
>
> Instead of adding hack after hack after hack to your internal header parser, just
> use the generic flow dissector we already have in the kernel to fetch out the
> values you need.
>
> __skb_flow_get_ports() etc.

Thanks. I will update the patch.

- Haiyang

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