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Intel IDPF device driver
========================
Overview
--------
This plugins provides native device support for Intel Infrastructure
Data Path Function (IDPF). The current IDPF is a driver specification
for future Intel Physical Function devices. IDPF defines communication
channel between Data Plane (DP) and Control Plane (CP).
Prerequisites
-------------
- Driver requires MSI-X interrupt support, which is not supported by
uio_pci_generic driver, so vfio-pci needs to be used. On systems
without IOMMU vfio driver can still be used with recent kernels which
support no-iommu mode.
Known issues
------------
- This driver is still in experimental phase, and the corresponding device
is not released yet.
- Current version only supports device initialization. Basic I/O function
will be supported in the next release.
Usage
-----
Interface Creation
~~~~~~~~~~~~~~~~~~
Interfaces can be dynamically created by using following CLI:
::
create interface idpf 0000:4b:00.0 vport-num 1 rx-single 1 tx-single 1
set int state idpf-0/4b/0/0 up
vport-num: number of vport to be created. Each vport is related to one netdev.
rx-single: configure Rx queue mode, split queue mode by default.
tx-single: configure Tx queue mode, split queue mode by default.
Interface Deletion
~~~~~~~~~~~~~~~~~~
Interface can be deleted with following CLI:
::
delete interface idpf <interface name>
Interface Statistics
~~~~~~~~~~~~~~~~~~~~
Interface statistics can be displayed with
``sh hardware-interface <if-name>`` command.
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