[dpdk-dev] [PATCH] doc: announce Vhost dequeue zero-copy removal

Maxime Coquelin maxime.coquelin at redhat.com
Mon Aug 3 16:55:38 CEST 2020


Vhost-user dequeue zero-copy support will be removed in
20.11. The only known user is OVS where the feature is
still experimental, and has not received any update for
several years. This feature faces reliability issues and
is often conflicting with new features being implemented.

Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---

Hi, the topic was discussed during OVS-DPDK public meeting
on July 22nd. Ian, if you had time to discuss the topic with
your team and agree with the removal, please ack the patch.
If, not please let me know.

 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 ea4cfa7a48..a923849419 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -151,3 +151,8 @@ Deprecation Notices
   Python 2 support will be completely removed in 20.11.
   In 20.08, explicit deprecation warnings will be displayed when running
   scripts with Python 2.
+
+* vhost: Vhost-user dequeue zero-copy support will be removed in 20.11. The
+  only known user is OVS where the feature is still experimental, and has not
+  received any update for 2.5 years. This feature faces reliability issues and
+  is often conflicting with new features being implemented.
-- 
2.26.2



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