[dpdk-dev] [PATCH v6 00/13] mbuf: enhancements of mbuf clones

[Thomas Monjalon]

> > The first objective of this series is to fix the support of indirect
> > mbufs when the application reserves a private area in mbufs. It also
> > removes the limitation that rte_pktmbuf_clone() is only allowed on
> > direct (non-cloned) mbufs. The series also contains some enhancements
> > and fixes in the mbuf area that makes the implementation of the
> > last patches easier.
> > 
> > Changes in v6:
> > - restore the priv_size in mbuf structure, version 4 broke the
> >   attachment between mbufs having different private size
> > - add a test case to ensure it won't be broken again
> > - replace 0xffff by UINT16_MAX
> > - fix some minor checkpatch issues
> > 
> > Changes in v5:
> > - update rte_mbuf_version.map to fix compilation with shared libraries
> > 
> > Changes in v4:
> > - do not add a priv_size in mbuf structure, having a proper accessor
> >   to read it from the pool private area is clearer
> > - prepend some reworks in the mbuf area to simplify the implementation
> >   (fix mbuf initialization by not using a hardcoded mbuf size, add
> >   accessors for mbuf pool private area, add a helper to create a
> >   mbuf pool)
> > 
> > Changes in v3:
> > - a mbuf can now attach to another one that have a different private
> >   size. In this case, the m->priv_size corresponds to the size of the
> >   private area of the direct mbuf.
> > - add comments to reflect these changes
> > - minor style modifications
> > 
> > Changes in v2:
> > - do not change the use of MBUF_EXT_MEM() in vhost
> > - change rte_mbuf_from_baddr() to rte_mbuf_from_indirect(), removing
> >   one parameter
> > - fix and rework rte_pktmbuf_detach()
> > - move m->priv_size in second mbuf cache line
> > - fix mbuf free in test error case
> > 
> > Olivier Matz (13):
> >   mbuf: fix mbuf data room size calculation rte_pktmbuf_pool_init
> >   examples: always initialize mbuf_pool private area
> >   mbuf: add accessors to get data room size and private size
> >   mbuf: fix rte_pktmbuf_init when mbuf private size is not zero
> >   testpmd: use standard functions to initialize mbufs and mbuf pool
> >   mbuf: introduce a new helper to create a mbuf pool
> >   apps: use rte_pktmbuf_pool_create to create mbuf pools
> >   mbuf: fix clone support when application uses private mbuf data
> >   mbuf: allow to clone an indirect mbuf
> >   test/mbuf: rename mc variable in m
> >   test/mbuf: enhance mbuf refcnt test
> >   test/mbuf: verify that cloning a clone works properly
> >   test/mbuf: add a test case for clone with different priv size
> 
> Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>

Applied, thanks