Re: [dpdk-dev] Query on Filtering Support in DPDK

[Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>]

Hi Thomas,

On Monday, November 11/30/15, 2015 at 05:43:18 -0800, Thomas Monjalon wrote:
> Hi,
> 
> 2015-11-30 18:19, Rahul Lakkireddy:
> > 1. Add a new action 'switch' that will:
> >    * Allow re-direction to different ports in hardware.
> > 
> >    Also, for such a rule, additionally support below:
> > 
> >    * Allow source mac/destination mac and vlan header re-writing to be
> >      done by the hardware.
> > 
> >    * Allow re-write of TCP/IP headers to perform NAT in hardware.
> > 
> > 2. Add ability to mask individual fields at a particular layer for each
> >    filter in flow_director. For example, mask all ip packets coming from
> >    a particular subnet mask and particular range of l4 ports for each
> >    filter rule.
> > 
> > We would like to get some suggestions on how to proceed with adding the
> > above features.
> 
> You need to identify which API must change and what will be the ABI changes.
> Then please send a deprecation notice before December 11 in order to be part
> of the 2.2 release notes.

I am currently identifying the various API changes to support this and
also the ABI changes if any.

> 
> If you have some RFC patches to send (at least the API changes), it would be
> a good discussion start.

I will try to post some RFC patches in 3-4 days time to get more
inputs/reviews on the approach.

Thanks,
Rahul.