From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: Olivier Matz <olivier.matz@6wind.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "jerin.jacob@caviumnetworks.com" <jerin.jacob@caviumnetworks.com>,
"thomas.monjalon@6wind.com" <thomas.monjalon@6wind.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>
Subject: Re: [dpdk-dev] [PATCH v2] doc: announce ABI change for mbuf structure
Date: Wed, 27 Jul 2016 09:34:32 +0000 [thread overview]
Message-ID: <2601191342CEEE43887BDE71AB97725836B88555@irsmsx105.ger.corp.intel.com> (raw)
In-Reply-To: <1468998974-3040-1-git-send-email-olivier.matz@6wind.com>
> -----Original Message-----
> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Olivier Matz
> Sent: Wednesday, July 20, 2016 8:16 AM
> To: dev@dpdk.org
> Cc: jerin.jacob@caviumnetworks.com; thomas.monjalon@6wind.com; Richardson, Bruce <bruce.richardson@intel.com>
> Subject: [dpdk-dev] [PATCH v2] doc: announce ABI change for mbuf structure
>
> For 16.11, the mbuf structure will be modified implying ABI breakage.
> Some discussions already took place here:
> http://www.dpdk.org/dev/patchwork/patch/12878/
>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
> ---
>
> v1->v2:
> - reword the sentences to keep things more open, as suggested by Bruce
>
> doc/guides/rel_notes/deprecation.rst | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
> index f502f86..b9f5a93 100644
> --- a/doc/guides/rel_notes/deprecation.rst
> +++ b/doc/guides/rel_notes/deprecation.rst
> @@ -41,3 +41,9 @@ Deprecation Notices
> * The mempool functions for single/multi producer/consumer are deprecated and
> will be removed in 16.11.
> It is replaced by rte_mempool_generic_get/put functions.
> +
> +* ABI changes are planned for 16.11 in the ``rte_mbuf`` structure: some fields
> + may be reordered to facilitate the writing of ``data_off``, ``refcnt``, and
> + ``nb_segs`` in one operation, because some platforms have an overhead if the
> + store address is not naturally aligned. Other mbuf fields, such as the
> + ``port`` field, may be moved or removed as part of this mbuf work.
> --
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> 2.8.1
next prev parent reply other threads:[~2016-07-27 9:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-19 14:01 [dpdk-dev] [PATCH] " Olivier Matz
2016-07-19 14:40 ` Bruce Richardson
2016-07-19 15:04 ` Olivier Matz
2016-07-19 15:07 ` Richardson, Bruce
2016-07-19 15:28 ` Olivier Matz
2016-07-20 7:16 ` [dpdk-dev] [PATCH v2] " Olivier Matz
2016-07-20 8:54 ` Ferruh Yigit
2016-07-27 8:33 ` Thomas Monjalon
2016-07-28 18:04 ` Thomas Monjalon
2016-07-27 9:34 ` Ananyev, Konstantin [this message]
2016-07-28 2:35 ` John Daley (johndale)
2016-07-28 2:39 ` Jerin Jacob
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