doc: fix diagram in dpaa2 guide

[dpdk.git] / doc / guides / nics / bnx2x.rst

diff --git a/doc/guides/nics/bnx2x.rst b/doc/guides/nics/bnx2x.rst
index 0a16f0c..ab90d8a 100644 (file)
--- a/doc/guides/nics/bnx2x.rst
+++ b/doc/guides/nics/bnx2x.rst
@@ -67,9 +67,9 @@ Supported QLogic NICs
 Prerequisites
 -------------
 
-- Requires firmware version **7.2.51.0**. It is included in most of the
+- Requires firmware version **7.13.11.0**. It is included in most of the
   standard Linux distros. If it is not available visit
-  `linux-firmware git repository <https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/bnx2x/bnx2x-e2-7.2.51.0.fw>`_
+  `linux-firmware git repository <https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/bnx2x/bnx2x-e2-7.13.11.0.fw>`_
   to get the required firmware.
 
 Pre-Installation Configuration
@@ -108,6 +108,23 @@ Driver compilation and testing
 Refer to the document :ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>`
 for details.
 
+Jumbo: Limitation
+-----------------
+
+Rx descriptor limit for number of segments per MTU is set to 1.
+PMD doesn't support Jumbo Rx scatter gather. Some applciations can
+adjust mbuf_size based on this param and max_pkt_len.
+
+For others, PMD detects the condition where Rx packet length cannot
+be held by configured mbuf size and logs the message.
+
+Example output:
+
+   .. code-block:: console
+
+      [...]
+      [bnx2x_recv_pkts:397(04:00.0:dpdk-port-0)] mbuf size 2048 is not enough to hold Rx packet length more than 2046
+
 SR-IOV: Prerequisites and sample Application Notes
 --------------------------------------------------