ethdev: add API to free consumed buffers in Tx ring

[dpdk.git] / doc / guides / rel_notes / release_17_05.rst

diff --git a/doc/guides/rel_notes/release_17_05.rst b/doc/guides/rel_notes/release_17_05.rst
index 918f483..2a045b3 100644 (file)
--- a/doc/guides/rel_notes/release_17_05.rst
+++ b/doc/guides/rel_notes/release_17_05.rst
@@ -41,6 +41,12 @@ New Features
      Also, make sure to start the actual text at the margin.
      =========================================================
 
+* **Added free Tx mbuf on demand API.**
+
+  Added a new function ``rte_eth_tx_done_cleanup()`` which allows an application
+  to request the driver to release mbufs from their Tx ring that are no longer
+  in use, independent of whether or not the ``tx_rs_thresh`` has been crossed.
+
 * **Increased number of next hops for LPM IPv6 to 2^21.**
 
   The next_hop field is extended from 8 bits to 21 bits for IPv6.
@@ -49,6 +55,7 @@ New Features
 
   sPAPR IOMMU based pci probing enabled for vfio-pci devices.
 
+
 Resolved Issues
 ---------------