X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=doc%2Fguides%2Frel_notes%2Fdeprecation.rst;h=237813b6472c67d967601ee3a834f7620677d9ae;hb=2755e3e55c6dbf81e0fad50b86df65d4a2ed2384;hp=b1aa6a880a7f5ac799f690f5fde67bde02784004;hpb=07f08a96f5255a0375dce2683db4fb489bbaa8a0;p=dpdk.git

diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index b1aa6a880a..237813b647 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -61,6 +61,21 @@ Deprecation Notices
   structure would be made internal (or removed if all dependencies are cleared)
   in future releases.
 
+* net: The Ethernet address and header definitions will change
+  attributes. The Ethernet address struct will no longer be marked as
+  packed since the packed attribute is meaningless on a byte
+  array. The Ethernet header will be marked as aligned on a 2-byte
+  boundary and will no longer have the packed attribute. This allows
+  for efficient access on CPU architectures where unaligned access is
+  expensive. These changes should not impact normal usage because drivers
+  naturally align the Ethernet header on receive and all known
+  encapsulations preserve the alignment of the header.
+
+* ethdev: The function ``rte_eth_dev_count`` will be removed in DPDK 20.02.
+  It is replaced by the function ``rte_eth_dev_count_avail``.
+  If the intent is to iterate over ports, ``RTE_ETH_FOREACH_*`` macros
+  are better port iterators.
+
 * ethdev: the legacy filter API, including
   ``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well
   as filter types MACVLAN, ETHERTYPE, FLEXIBLE, SYN, NTUPLE, TUNNEL, FDIR,
@@ -69,6 +84,41 @@ Deprecation Notices
   Target release for removal of the legacy API will be defined once most
   PMDs have switched to rte_flow.
 
+* ethdev: Update API functions returning ``void`` to return ``int`` with
+  negative errno values to indicate various error conditions (e.g.
+  invalid port ID, unsupported operation, failed operation):
+
+  - ``rte_eth_dev_stop``
+  - ``rte_eth_dev_close``
+
+* ethdev: New offload flags ``DEV_RX_OFFLOAD_RSS_HASH`` 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::hash::rss`` and ``rte_mbuf::hash::fdir`` respectively.
+  This scheme will allow PMDs to avoid writes to ``rte_mbuf`` fields on Rx and
+  thereby improve Rx performance if application wishes do so.
+  In 19.11 PMDs will still update the fields even when the offloads are not
+  enabled.
+
+* ethdev: New function ``rte_eth_dev_set_supported_ptypes`` will be added in
+  19.11.
+  This will allow application to request PMD to set specific ptypes defined
+  through ``rte_eth_dev_set_supported_ptypes`` in ``rte_mbuf::packet_type``.
+  If application doesn't want any ptype information it can call
+  ``rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_UNKNOWN)`` and PMD
+  will set ``rte_mbuf::packet_type`` to ``0``.
+  If application doesn't call ``rte_eth_dev_set_supported_ptypes`` PMD can
+  return ``rte_mbuf::packet_type`` with ``rte_eth_dev_get_supported_ptypes``.
+  If application is interested only in L2/L3 layer, it can inform the PMD
+  to update ``rte_mbuf::packet_type`` with L2/L3 ptype by calling
+  ``rte_eth_dev_set_supported_ptypes(ethdev_id, RTE_PTYPE_L2_MASK | RTE_PTYPE_L3_MASK)``.
+  This scheme will allow PMDs to avoid lookup to internal ptype table on Rx and
+  thereby improve Rx performance if application wishes do so.
+
+* ethdev: New 32-bit fields may be added for maximum LRO session size, in
+  struct ``rte_eth_dev_info`` for the port capability and in struct
+  ``rte_eth_rxmode`` for the port configuration.
+
 * cryptodev: support for using IV with all sizes is added, J0 still can
   be used but only when IV length in following structs ``rte_crypto_auth_xform``,
   ``rte_crypto_aead_xform`` is set to zero. When IV length is greater or equal