[dpdk-dev] Query on Filtering Support in DPDK
Rahul Lakkireddy
rahul.lakkireddy at chelsio.com
Wed Dec 2 09:05:04 CET 2015
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.
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