doc: clarify PMD order in release notes

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

diff --git a/doc/guides/nics/intel_vf.rst b/doc/guides/nics/intel_vf.rst
index 723a9c0..fcea815 100644 (file)
--- a/doc/guides/nics/intel_vf.rst
+++ b/doc/guides/nics/intel_vf.rst
@@ -88,6 +88,16 @@ For more detail on SR-IOV, please refer to the following documents:
     assignment in hypervisor. Take qemu for example, the device assignment should carry the IAVF device id (0x1889) like
     ``-device vfio-pci,x-pci-device-id=0x1889,host=03:0a.0``.
 
+    Starting from DPDK 21.05, the default VF driver for Intel® 700 Series Ethernet Controller will be IAVF. No new feature
+    will be added into i40evf except bug fix until it's removed in DPDK 21.11. Between DPDK 21.05 and 21.11, by using the
+    ``devargs`` option ``driver=i40evf``, i40evf PMD still can be used on Intel® 700 Series Ethernet Controller, for example::
+
+    -a 81:02.0,driver=i40evf
+
+    When IAVF is backed by an Intel® E810 device, the "Protocol Extraction" feature which is supported by ice PMD is also
+    available for IAVF PMD. The same devargs with the same parameters can be applied to IAVF PMD, for detail please reference
+    the section ``Protocol extraction for per queue`` of ice.rst.
+
 The PCIE host-interface of Intel Ethernet Switch FM10000 Series VF infrastructure
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^