[dpdk-dev] [PATCH 0/6] Mbuf structure Rework, part 1

[Richardson, Bruce]

> -----Original Message-----
> From: Olivier MATZ [mailto:olivier.matz at 6wind.com]
> Sent: Monday, September 08, 2014 1:33 PM
> To: Richardson, Bruce; dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH 0/6] Mbuf structure Rework, part 1
> 
> Hi Bruce,
> 
> On 08/27/2014 05:50 PM, Bruce Richardson wrote:
> > This patch set does some initial pre-work to prepare the mbuf data structure
> > (and ixgbe vector driver to a lesser extent) for more major changes which
> > will follow on in a subsequent patch set. [See previous RFC patch set for
> > more indications of the future coming changes].
> >
> > The main changes here are the flattening out of the mbuf data structure, with
> > much of it based off work by Olivier. The ctrlmbuf and pktmbuf structures are
> > now gone, as is the vlan_macip structure. However, in this set, the concept
> > of having a separate ctrl mbuf type is kept around. The plan is in a later set
> > when we expand the flags field to 64-bits, we can use a single bit in the flags
> > to indicate a control packet. For now, though, the ctrlmbuf functions and
> macros
> > just are aliases for the pktmbuf equivalents as much as possible.
> 
> I'm wondering it "struct rte_kni_mbuf" should be updated
> accordingly each time "struct mbuf" is modified.
> 
> Regards,
> Olivier

Yes, it should. There are no changes needed for the part 1 patch set (6 patches), as it does not change the actual field layout, it just flattens the C definitions. I've already started working on an update to the second patch set (13 patches) including kni changes as part of it.

/Bruce