[PATCH v9 25/25] doc: add 26.11 release notes for NXP DPAA new features

Document new features added by the DPAA patch series:
- Offline (O/H) port device support (drv_oldev bus devarg)
- Rx/Tx taildrop threshold devargs (drv_rx_taildrop, drv_tx_taildrop)
- Tx rate limiting API (rte_pmd_dpaa_port_set_rate_limit)
- Fmcless Rx queue count devarg (drv_fmcless_rxq)
- VSP port enhancements
- BMI Tx statistics
- ORP burst enqueue API (qman_enqueue_multi_orp)
- DMA scatter-gather support and ERR050757 workaround

Signed-off-by: Hemant Agrawal <[email protected]>
---
 doc/guides/rel_notes/release_26_11.rst | 29 ++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/doc/guides/rel_notes/release_26_11.rst b/doc/guides/rel_notes/release_26_11.rst
index c8cc86295d..22af88bf44 100644
--- a/doc/guides/rel_notes/release_26_11.rst
+++ b/doc/guides/rel_notes/release_26_11.rst
@@ -55,6 +55,35 @@ New Features
      Also, make sure to start the actual text at the margin.
      =======================================================
 
+* **Added NXP DPAA offline (O/H) port device support.**
+
+  Added support for the DPAA Offline/Host-command (O/H) port, allowing
+  a DPDK application to use an offline port for packet processing.
+  The feature is selected through the ``drv_oldev`` bus device argument.
+
+* **Added NXP DPAA Rx/Tx taildrop threshold device arguments.**
+
+  Added ``drv_rx_taildrop`` and ``drv_tx_taildrop`` device arguments
+  to configure per-port frame queue taildrop congestion thresholds
+  at device probe time.
+
+* **Added NXP DPAA Tx rate limiting API.**
+
+  Added ``rte_pmd_dpaa_port_set_rate_limit()`` to configure the
+  transmit rate limit (burst size and rate) on a DPAA port using the
+  FMAN port rate limiter.
+
+* **Added NXP DPAA fmcless Rx queue count device argument.**
+
+  Added ``drv_fmcless_rxq`` device argument to set the number of
+  Rx queues when running without FMC configuration.
+
+* **Added NXP DPAA DMA scatter-gather and ERR050757 workaround.**
+
+  Added scatter-gather (SG) support to the DPAA QDMA driver and a
+  workaround for hardware errata ERR050757 to prevent data corruption
+  on affected silicon when ``RTE_DMA_DPAA_ERRATA_ERR050757`` is defined.
+
 
 Removed Items
 -------------
-- 
2.25.1