Hi Adrien, Thomas, Yong,

> -----Original Message-----
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Adrien Mazarguil
> Sent: Friday, January 20, 2017 2:46 AM
> To: Thomas Monjalon
> Cc: Liu, Yong; dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] doc: announce ABI change for cloud filter
> 
> On Thu, Jan 19, 2017 at 10:06:34AM +0100, Thomas Monjalon wrote:
> > 2017-01-19 13:34, Yong Liu:
> > > +* ABI changes are planned for 17.05: structure
> > > +``rte_eth_tunnel_filter_conf``
> > > +  will be extended with a new member ``vf_id`` in order to enable
> > > +cloud filter
> > > +  on VF device.
> >
> > I think we should stop rely on this API, and migrate to rte_flow instead.
> > Adrien any thought?
> 
> I'm all for using rte_flow in any case. I've already documented an approach to
> convert TUNNEL filter rules to rte_flow rules [1], although it may be
> incomplete due to my limited experience with this filter type. We already
> know several tunnel item types must be added (currently only VXLAN is
> defined).
> 
> I understand ixgbe/i40e currently map rte_flow on top of the legacy
> framework, therefore extending this structure might still be needed in the
> meantime. Not sure we should prevent this change as long as such rules can be
> configured through rte_flow as well.
> 
> [1] http://dpdk.org/doc/guides/prog_guide/rte_flow.html#tunnel-to-eth-ipv4-
> ipv6-vxlan-or-other-queue
The problem is we haven't finished transferring all the functions from the 
regular filters to the generic filters. 
For example, igb, fm10k and enic haven't support generic filters yet. Ixgbe and 
i40e have supported the basic functions, but some advance features are not 
transferred to generic filters yet.
Seems it's not the time to remove the regular filters. Yong, I suggest to 
support both generic filter and regular filter in parallel.
So, we need to announce ABI change for the regular filter, until someday we 
remove the regular filter API. 

> 
> --
> Adrien Mazarguil
> 6WIND

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