Re: [dpdk-dev] [PATCH] doc: announce ABI change for librte_port

["Mrzyglod, DanielX T" <danielx.t.mrzyglod@intel.com>]

> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Cristian Dumitrescu
> Sent: Thursday, July 16, 2015 2:20 PM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH] doc: announce ABI change for librte_port
> 
> 
> Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
> ---
>  doc/guides/rel_notes/abi.rst |   12 ++++++++++++
>  1 files changed, 12 insertions(+), 0 deletions(-)
> 
> diff --git a/doc/guides/rel_notes/abi.rst b/doc/guides/rel_notes/abi.rst
> index 9e98d62..271e08e 100644
> --- a/doc/guides/rel_notes/abi.rst
> +++ b/doc/guides/rel_notes/abi.rst
> @@ -34,3 +34,15 @@ Deprecation Notices
>    creates a dummy/empty malloc library to fulfill binaries with dynamic linking
>    dependencies on librte_malloc.so. Such dummy library will not be created from
>    release 2.2 so binaries will need to be rebuilt.
> +
> +* librte_port (rte_port.h): Macros to access the packet meta-data stored within
> +  the packet buffer will be adjusted to cover the packet mbuf structure as well,
> +  as currently they are able to access any packet buffer location except the
> +  packet mbuf structure. The consequence is that applications currently using
> +  these macros will have to adjust the value of the offset parameter of these
> +  macros by increasing it with sizeof(struc rte_mbuf). The affected macros are:
> +  RTE_MBUF_METADATA_UINT<8, 16, 32, 64>_PTR and
> +  RTE_MBUF_METADATA_UINT<8, 16, 32, 64>. In terms of code changes, most
> likely
> +  only the definition of RTE_MBUF_METADATA_UINT8_PTR macro will be
> changed from
> +  ``(&((uint8_t *) &(mbuf)[1])[offset])`` to
> +  ``(&((uint8_t *) (mbuf))[offset])``.
> --
> 1.7.4.1

> 1.7.4.1


Acked-by: Daniel Mrzyglod <danielx.t.mrzyglod@intel.com>