[dpdk-dev] [PATCH] doc: announce ABI change for librte_port
Mrzyglod, DanielX T
danielx.t.mrzyglod at intel.com
Thu Jul 16 14:30:12 CEST 2015
> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Cristian Dumitrescu
> Sent: Thursday, July 16, 2015 2:20 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] [PATCH] doc: announce ABI change for librte_port
>
>
> Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu at 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 at intel.com>
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