[dpdk-dev] [PATCH] doc: deprecation notice for change of ether struct alignment

[Stephen Hemminger]

On Tue,  9 Jul 2019 15:58:36 +0100
Bruce Richardson <bruce.richardson at intel.com> wrote:

> The ethernet address structure alignment will be changed to 2B alignment in
> 19.11. Flag this to users.
> 
> Impact is expected to be minimal for this change since ethernet addresses
> are generally 2B aligned anyway.
> 
> Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
> ---
>  doc/guides/rel_notes/deprecation.rst | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
> index a7796f49b..7a04b9b09 100644
> --- a/doc/guides/rel_notes/deprecation.rst
> +++ b/doc/guides/rel_notes/deprecation.rst
> @@ -11,6 +11,11 @@ API and ABI deprecation notices are to be posted here.
>  Deprecation Notices
>  -------------------
>  
> +* net: The alignment of the ethernet address structure in DPDK,
> +  ``rte_ether_addr`` will be increased to two, i.e. 16-bit aligned, in the
> +  19.11 release. This will only affect any data structures where an ethernet
> +  address is currently aligned on a single byte boundary.
> +
>  * meson: The minimum supported version of meson for configuring and building
>    DPDK will be increased to v0.47.1 (from 0.41) from DPDK 19.05 onwards. For
>    those users with a version earlier than 0.47.1, an updated copy of meson

We should also take the packed off of ether_header and ether_addr.
Packed is meaningless on ether_addr anyway.