1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright(c) 2019 Intel Corporation.
4 IPN3KE Poll Mode Driver
5 =======================
7 The ipn3ke PMD (**librte_net_ipn3ke**) provides poll mode driver support
8 for IntelĀ® FPGA PAC(Programmable Acceleration Card) N3000 based on
9 the Intel Ethernet Controller X710/XXV710 and Intel Arria 10 FPGA.
11 In this card, FPGA is an acceleration bridge between network interface
12 and the Intel Ethernet Controller. Although both FPGA and Ethernet
13 Controllers are connected to CPU with PCIe Gen3x16 Switch, all the
14 packet RX/TX is handled by Intel Ethernet Controller. So from application
15 point of view the data path is still the legacy Intel Ethernet Controller
16 X710/XXV710 PMD. Besides this, users can enable more acceleration
22 - Identifying your adapter using `Intel Support
23 <http://www.intel.com/support>`_ and get the latest NVM/FW images.
25 - Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup the basic DPDK environment.
27 - To get better performance on Intel platforms, please follow the "How to get best performance with NICs on Intel platforms"
28 section of the :ref:`Getting Started Guide for Linux <linux_gsg>`.
31 Pre-Installation Configuration
32 ------------------------------
35 Runtime Config Options
36 ~~~~~~~~~~~~~~~~~~~~~~
40 AFU name identifies which AFU is used by IPN3KE. The AFU name format is "Port|BDF",
41 Each FPGA can be divided into four blocks at most. "Port" identifies which FPGA block
42 the AFU bitstream belongs to, but currently only 0 IPN3KE support. "BDF" means FPGA PCIe BDF.
45 --vdev 'ipn3ke_cfg0,afu=0|b3:00.0'
47 - ``FPGA Acceleration list``
49 For IPN3KE FPGA can provide different bitstream, different bitstream includes different
50 Acceleration, so users need to identify which Acceleration is used. Current IPN3KE can
51 support TM and Flow Acceleration, for example::
53 --vdev 'ipn3ke_cfg0,afu=0|b3:00.0,fpga_acc={tm|flow}'
55 - ``I40e PF name list``
57 Users need to bind FPGA LineSidePort to FVL PF. So I40e PF name list should be involved in
58 startup command. For example::
60 --vdev 'ipn3ke_cfg0,afu=0|b3:00.0,fpga_acc={tm|flow},i40e_pf={0000:b1:00.0|0000:b1:00.1|0000:b1:00.2|0000:b1:00.3|0000:b5:00.0|0000:b5:00.1|0000:b5:00.2|0000:b5:00.3}'
62 Driver compilation and testing
63 ------------------------------
65 Refer to the document :ref:`compiling and testing a PMD for a NIC <pmd_build_and_test>`
68 Sample Application Notes
69 ------------------------
71 Packet TX/RX with FPGA Pass-through image
72 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
74 FPGA Pass-through bitstream is original FPGA Image.
76 To start ``testpmd``, and add I40e PF to FPGA network port:
78 .. code-block:: console
80 ./<build_dir>/app/dpdk-testpmd -l 0-15 -n 4 --vdev 'ifpga_rawdev_cfg0,ifpga=b3:00.0,port=0' --vdev 'ipn3ke_cfg0,afu=0|b3:00.0,i40e_pf={0000:b1:00.0|0000:b1:00.1|0000:b1:00.2|0000:b1:00.3|0000:b5:00.0|0000:b5:00.1|0000:b5:00.2|0000:b5:00.3}' -- -i --no-numa --port-topology=loop
82 HQoS and flow acceleration
83 ~~~~~~~~~~~~~~~~~~~~~~~~~~
85 HQoS and flow acceleration bitstream is used to offloading HQoS and flow classifier.
87 To start ``testpmd``, and add I40e PF to FPGA network port, enable FPGA HQoS and Flow Acceleration:
89 .. code-block:: console
91 ./<build_dir>/app/dpdk-testpmd -l 0-15 -n 4 --vdev 'ifpga_rawdev_cfg0,ifpga=b3:00.0,port=0' --vdev 'ipn3ke_cfg0,afu=0|b3:00.0,fpga_acc={tm|flow},i40e_pf={0000:b1:00.0|0000:b1:00.1|0000:b1:00.2|0000:b1:00.3|0000:b5:00.0|0000:b5:00.1|0000:b5:00.2|0000:b5:00.3}' -- -i --no-numa --forward-mode=macswap
93 Limitations or Known issues
94 ---------------------------
99 Ipn3ke code released in 19.05 is for evaluation only.