[dpdk-dev] [patch] doc: announce API change in ethdev offload flags

pbhagavatula at marvell.com pbhagavatula at marvell.com
Wed Aug 7 18:09:26 CEST 2019

From: Pavan Nikhilesh <pbhagavatula at marvell.com>

Add new offload flags ``DEV_RX_OFFLOAD_PTYPE``, ``DEV_RX_OFFLOAD_RSS``

Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
 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 37b8592b6..a10f69e98 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -78,3 +78,12 @@ 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.
+* ethdev: New offload flags ``DEV_RX_OFFLOAD_PTYPE``, ``DEV_RX_OFFLOAD_RSS``
+  and ``DEV_RX_OFFLOAD_FLOW_MARK`` will be added in 19.11.
+  This will allow application to enable or disable PMDs from updating
+  ``rte_mbuf`` fields ``rte_mbuf::packet_type``, ``rte_mbuf::hash::rss`` and
+  ``rte_mbuf::hash::fdir`` respectively.
+  In 19.11 PMDs will still update the fields even when the offloads are not
+  enabled. This is done as an optimization to avoid writes to ``rte_mbuf`` fields,
+  the exact semantics of the flags will be worked out later.

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