From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>
Subject: [dpdk-dev] [PATCH] doc: add deprecation notice about changes to ethernet structures
Date: Thu, 18 Jul 2019 15:09:10 -0700 [thread overview]
Message-ID: <20190718220910.8248-1-stephen@networkplumber.org> (raw)
In-Reply-To: <20190709150257.GB497@bricha3-MOBL.ger.corp.intel.com>
Tell users about upcoming changes to rte_ether_addr and
rte_ether_header.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
doc/guides/rel_notes/deprecation.rst | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index a7796f49b9fe..9c20a47b3e4c 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -82,3 +82,12 @@ Deprecation Notices
to set new power environment if power environment was already initialized.
In this case the function will return -1 unless the environment is unset first
(using ``rte_power_unset_env``). Other function usage scenarios will not change.
+
+* net: the Ethernet address and header defintions will change attributes.
+ The Ethernet address struct will no longer be marked as packed since
+ since the packed attribute is meaningless on a byte array.
+ The Etherne header will be marked as aligned on a 2 byte boundary (and
+ no longer packed). This allows for efficient access on all CPU's.
+ These changes should not impact normal usage drivers naturally
+ align the Ethernet header on receive, and almost every encapsulation
+ preserves the alignment.
--
2.17.1
next prev parent reply other threads:[~2019-07-18 22:09 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-09 14:58 [dpdk-dev] [PATCH] doc: deprecation notice for change of ether struct alignment Bruce Richardson
2019-07-09 14:59 ` Stephen Hemminger
2019-07-09 15:02 ` Bruce Richardson
2019-07-18 22:09 ` Stephen Hemminger [this message]
2019-07-19 10:57 ` [dpdk-dev] [PATCH] doc: add deprecation notice about changes to ethernet structures Bruce Richardson
2019-07-19 16:56 ` [dpdk-dev] [PATCH v2] " Stephen Hemminger
2019-07-23 11:28 ` Andrew Rybchenko
2019-07-31 10:46 ` Ferruh Yigit
2019-08-06 11:26 ` Thomas Monjalon
2019-08-10 20:22 ` Thomas Monjalon
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