common/cnxk: enable backpressure on CPT with inline inbound

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

diff --git a/doc/guides/nics/af_packet.rst b/doc/guides/nics/af_packet.rst
index efd6f1c..54feffd 100644 (file)
--- a/doc/guides/nics/af_packet.rst
+++ b/doc/guides/nics/af_packet.rst
@@ -65,3 +65,10 @@ framecnt=512):
 .. code-block:: console
 
     --vdev=eth_af_packet0,iface=tap0,blocksz=4096,framesz=2048,framecnt=512,qpairs=1,qdisc_bypass=0
+
+Features and Limitations
+------------------------
+
+The PMD will re-insert the VLAN tag transparently to the packet if the kernel
+strips it, as long as the ``RTE_ETH_RX_OFFLOAD_VLAN_STRIP`` is not enabled by the
+application.