-.. BSD LICENSE
- Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- All rights reserved.
-
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-
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- notice, this list of conditions and the following disclaimer.
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- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
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-
-I40E/IXGBE/IGB Virtual Function Driver
-======================================
+.. SPDX-License-Identifier: BSD-3-Clause
+ Copyright(c) 2010-2014 Intel Corporation.
+
+Intel Virtual Function Driver
+=============================
Supported Intel® Ethernet Controllers (see the *DPDK Release Notes* for details)
support the following modes of operation in a virtualized environment:
For this out-of-band communication, an SR-IOV enabled NIC provides a memory buffer for each Virtual Function,
which is called a "Mailbox".
+Intel® Ethernet Adaptive Virtual Function
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Adaptive Virtual Function (IAVF) is a SR-IOV Virtual Function with the same device id (8086:1889) on different Intel Ethernet Controller.
+IAVF Driver is VF driver which supports for all future Intel devices without requiring a VM update. And since this happens to be an adaptive VF driver,
+every new drop of the VF driver would add more and more advanced features that can be turned on in the VM if the underlying HW device supports those
+advanced features based on a device agnostic way without ever compromising on the base functionality. IAVF provides generic hardware interface and
+interface between IAVF driver and a compliant PF driver is specified.
+
+Intel products starting Ethernet Controller 700 Series to support Adaptive Virtual Function.
+
+The way to generate Virtual Function is like normal, and the resource of VF assignment depends on the NIC Infrastructure.
+
+For more detail on SR-IOV, please refer to the following documents:
+
+* `Intel® IAVF HAS <https://www.intel.com/content/dam/www/public/us/en/documents/product-specifications/ethernet-adaptive-virtual-function-hardware-spec.pdf>`_
+
+.. note::
+
+ To use DPDK IAVF PMD on Intel® 700 Series Ethernet Controller, the device id (0x1889) need to specified during device
+ 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``.
+
+ 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
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
In a virtualized environment, the programmer can enable a maximum of *128 Virtual Functions (VF)*
globally per Intel® X710/XL710 Gigabit Ethernet Controller NIC device.
-The number of queue pairs of each VF can be configured by ``CONFIG_RTE_LIBRTE_I40E_QUEUE_NUM_PER_VF`` in ``config`` file.
The Physical Function in host could be either configured by the Linux* i40e driver
(in the case of the Linux Kernel-based Virtual Machine [KVM]) or by DPDK PMD PF driver.
When using both DPDK PMD PF/VF drivers, the whole NIC will be taken over by DPDK based application.
For more information, please refer to: `http://wiki.qemu.org/Features/CPUModels <http://wiki.qemu.org/Features/CPUModels>`_.
-#. Install and run DPDK host app to take over the Physical Function. Eg.
+#. If use vfio-pci to pass through device instead of pci-assign, steps 8 and 9 need to be updated to bind device to vfio-pci and
+ replace pci-assign with vfio-pci when start virtual machine.
.. code-block:: console
- make install T=x86_64-native-linuxapp-gcc
- ./x86_64-native-linuxapp-gcc/app/testpmd -l 0-3 -n 4 -- -i
+ sudo /sbin/modprobe vfio-pci
-#. Finally, access the Guest OS using vncviewer with the localhost:5900 port and check the lspci command output in the Guest OS.
- The virtual functions will be listed as available for use.
+ echo "8086 10ed" > /sys/bus/pci/drivers/vfio-pci/new_id
+ echo 0000:08:10.0 > /sys/bus/pci/devices/0000:08:10.0/driver/unbind
+ echo 0000:08:10.0 > /sys/bus/pci/drivers/vfio-pci/bind
+
+ /usr/local/kvm/bin/qemu-system-x86_64 -m 4096 -smp 4 -boot c -hda lucid.qcow2 -device vfio-pci,host=08:10.0
-#. Configure and install the DPDK with an x86_64-native-linuxapp-gcc configuration on the Guest OS as normal,
- that is, there is no change to the normal installation procedure.
+#. Install and run DPDK host app to take over the Physical Function. Eg.
.. code-block:: console
- make config T=x86_64-native-linuxapp-gcc O=x86_64-native-linuxapp-gcc
- cd x86_64-native-linuxapp-gcc
- make
+ ./<build_dir>/app/dpdk-testpmd -l 0-3 -n 4 -- -i
+
+#. Finally, access the Guest OS using vncviewer with the localhost:5900 port and check the lspci command output in the Guest OS.
+ The virtual functions will be listed as available for use.
+
+#. Configure and install the DPDK on the Guest OS as normal, that is, there is no change to the normal installation procedure.
.. note::