mem: allow memseg lists to be marked as external

[dpdk.git] / doc / guides / rel_notes / release_18_11.rst

diff --git a/doc/guides/rel_notes/release_18_11.rst b/doc/guides/rel_notes/release_18_11.rst
index 099e956..6a54ad5 100644 (file)
--- a/doc/guides/rel_notes/release_18_11.rst
+++ b/doc/guides/rel_notes/release_18_11.rst
@@ -118,6 +118,12 @@ API Changes
    Also, make sure to start the actual text at the margin.
    =========================================================
 
+* eal: ``rte_memseg_list`` structure now has an additional flag indicating
+  whether the memseg list is externally allocated. This will have implications
+  for any users of memseg-walk-related functions, as they will now have to skip
+  externally allocated segments in most cases if the intent is to only iterate
+  over internal DPDK memory.
+
 * mbuf: The ``__rte_mbuf_raw_free()`` and ``__rte_pktmbuf_prefree_seg()``
   functions were deprecated since 17.05 and are replaced by
   ``rte_mbuf_raw_free()`` and ``rte_pktmbuf_prefree_seg()``.
@@ -134,6 +140,9 @@ API Changes
   To request keeping CRC, application should set ``DEV_RX_OFFLOAD_KEEP_CRC`` Rx
   offload.
 
+* eventdev: Type of 2nd parameter to ``rte_event_eth_rx_adapter_caps_get()``
+  has been changed from uint8_t to uint16_t.
+
 
 ABI Changes
 -----------
@@ -149,6 +158,17 @@ ABI Changes
    Also, make sure to start the actual text at the margin.
    =========================================================
 
+* eal: added ``legacy_mem`` and ``single_file_segments`` values to
+       ``rte_config`` structure on account of improving DPDK usability when
+       using either ``--legacy-mem`` or ``--single-file-segments`` flags.
+
+* eal: EAL library ABI version was changed due to previously announced work on
+       supporting external memory in DPDK:
+         - structure ``rte_memseg_list`` now has a new field indicating length
+           of memory addressed by the segment list
+         - structure ``rte_memseg_list`` now has a new flag indicating whether
+           the memseg list refers to external memory
+
 
 Removed Items
 -------------
@@ -195,9 +215,9 @@ The libraries prepended with a plus sign were incremented in this version.
      librte_compressdev.so.1
      librte_cryptodev.so.5
      librte_distributor.so.1
-     librte_eal.so.8
+   + librte_eal.so.9
      librte_ethdev.so.10
-     librte_eventdev.so.5
+   + librte_eventdev.so.6
      librte_flow_classify.so.1
      librte_gro.so.1
      librte_gso.so.1