Re: [dts] [PATCH v1] test_plans: add test cases for cbdma pmd

["Tu, Lijuan" <lijuan.tu@intel.com>]

Applied

> -----Original Message-----
> From: dts [mailto:dts-bounces@dpdk.org] On Behalf Of Yinan
> Sent: Tuesday, December 17, 2019 5:57 PM
> To: dts@dpdk.org
> Cc: Wang, Yinan <yinan.wang@intel.com>
> Subject: [dts] [PATCH v1] test_plans: add test cases for cbdma pmd
> 
> From: Wang Yinan <yinan.wang@intel.com>
> 
> Signed-off-by: Wang Yinan <yinan.wang@intel.com>
> ---
>  test_plans/cbdma_test_plan.rst | 196
> +++++++++++++++++++++++++++++++++
>  1 file changed, 196 insertions(+)
>  create mode 100644 test_plans/cbdma_test_plan.rst
> 
> diff --git a/test_plans/cbdma_test_plan.rst b/test_plans/cbdma_test_plan.rst
> new file mode 100644 index 0000000..3cace07
> --- /dev/null
> +++ b/test_plans/cbdma_test_plan.rst
> @@ -0,0 +1,196 @@
> +.. Copyright (c) <2019>, Intel Corporation
> +   All rights reserved.
> +
> +   Redistribution and use in source and binary forms, with or without
> +   modification, are permitted provided that the following conditions
> +   are met:
> +
> +   - Redistributions of source code must retain the above copyright
> +     notice, this list of conditions and the following disclaimer.
> +
> +   - Redistributions in binary form must reproduce the above copyright
> +     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.
> +
> +   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
> CONTRIBUTORS
> +   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> +   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
> FITNESS
> +   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
> +   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
> INDIRECT,
> +   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
> +   (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
> GOODS OR
> +   SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
> +   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
> CONTRACT,
> +   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
> +   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
> ADVISED
> +   OF THE POSSIBILITY OF SUCH DAMAGE.
> +
> +===============
> +CBDMA test plan
> +===============
> +
> +Sample Application of packet copying using Intel Quick Data Technology
> +===============================================================
> =======
> +
> +Overview
> +--------
> +
> +This sample is intended as a demonstration of the basic components of a
> +DPDK forwarding application and example of how to use IOAT driver API
> +to make packets copies. Also, this application can be used to compare
> +performance of memory copy with different packet size between CPU and
> +DMA engine. The application will print out statistics each second. The
> +stats shows received/send packets and packets dropped or failed to
> +copy. The application can be launched in various configurations depending
> on provided parameters. Each port can use up to 2 lcores:
> +one of lcore receives incoming traffic and makes a copy of each packet,
> +the second lcore then updates MAC address and sends the copy. If one
> +lcore per port is used, both operations are done sequentially. For each
> +configuration an additional lcore is needed since master lcore in use
> +which is responsible for configuration, statistics printing and safe
> +deinitialization of all ports and devices. Also, the application can use 8 ports
> in maximum.
> +
> +Running the Application
> +-----------------------
> +
> +In order to run the hardware copy application, the copying device needs
> +to be bound to user-space IO driver.
> +
> +Refer to the *IOAT Rawdev Driver for Intel QuickData Technology* guide
> +for information on using the driver.
> +
> +The application requires a number of command line options:
> +
> +.. code-block:: console
> +
> +    ./build/ioatfwd [EAL options] -- -p MASK [-q NQ] [-s RS] [-c <sw|hw>]
> +        [--[no-]mac-updating]
> +
> +where,
> +
> +*   p MASK: A hexadecimal bitmask of the ports to configure
> +
> +*   q NQ: Number of Rx queues used per port equivalent to CBDMA
> channels
> +    per port
> +
> +*   c CT: Performed packet copy type: software (sw) or hardware using
> +    DMA (hw)
> +
> +*   s RS: Size of IOAT rawdev ring for hardware copy mode or rte_ring for
> +    software copy mode
> +
> +*   --[no-]mac-updating: Whether MAC address of packets should be
> changed
> +    or not
> +
> +Packet pipeline:
> +===============
> +NIC RX -> copy packet -> free original -> update mac addresses -> NIC
> +TX
> +
> +Test Case1: CBDMA basic test with differnet size packets
> +========================================================
> +
> +1.Bind one cbdma port and one nic port to igb_uio driver.
> +
> +2.Launch ioatfwd app::
> +
> +./build/ioatfwd -l 0-1 -n 2 -- -p 0x1 -c hw --mac-updating
> +
> +3.Send different size packets (64B, 256B, 512B, 1024B, IMIX) from TG to NIC.
> +
> +4.Check performance from “Total packets Tx” and check log includes
> "Worker Threads = 1, Copy Mode = hw".
> +
> +Test Case2: CBDMA test with multi-threads
> +=========================================
> +
> +1.Bind one cbdma port and one nic port to igb_uio driver.
> +
> +2.Launch ioatfwd app with three cores::
> +
> +./build/ioatfwd -l 0-2 -n 2 -- -p 0x1 -c hw
> +
> +3. Send different size packets from TG to NIC.
> +
> +4.Check performance from “Total packets Tx” and check log includes
> "Worker Threads = 2, Copy Mode = hw".
> +
> +Test Case3: CBDMA test with multi nic ports
> +===========================================
> +
> +1.Bind two cbdma ports and two nic ports to igb_uio driver.
> +
> +2.Launch ioatfwd app with multi-ports::
> +
> +./build/ioatfwd -l 0-4 -n 2 -- -p 0x3 -q 1 -c hw
> +
> +3.Send different size packets (64B, 256B, 512B, 1024B, IMIX) from TG to two
> NIC ports.
> +
> +4.Check stats of two ports, each port's performance shows in “Total packets
> Tx” and each port's log includes "Worker Threads = 2, Copy Mode = hw".
> +
> +Test Case4: CBDMA test with multi-queues
> +========================================
> +
> +1.Bind two cbdma ports and one nic port to igb_uio driver.
> +
> +2.Launch ioatfwd app with multi-queues::
> +
> +./build/ioatfwd -l 0-2 -n 2 -- -p 0x1 -q 2 -c hw
> +
> +3. Send random ip packets (64B, 256B, 512B, 1024B, IMIX) from TG to NIC
> port.
> +
> +4. Check stats of ioat app, "Worker Threads = 2, Copy Mode = hw, Rx
> Queues = 2" and each ioat channel can enqueue packets.
> +
> +5. Repeat step1 to step4 with queue number 4 and qemu number 8, also
> bind same number cbdma ports.
> +Check performance gains status when queue numbers added.
> +
> +Test Case5: CBDMA performance cmparison between mac-updating and
> +no-mac-updating
> +===============================================================
> ========
> +=========
> +
> +1.Bind one cbdma ports and one nic port to igb_uio driver.
> +
> +2.Launch ioatfwd app::
> +
> +./build/ioatfwd -l 0-1 -n 2 -- -p 0x1 -q 2 --no-mac-updating -c hw
> +
> +3. Send random ip 64B packets from TG.
> +
> +4. Check performance from ioat app::
> +
> +Total packets Tx:                   xxx [pps]
> +
> +5.Launch ioatfwd app::
> +
> +./build/ioatfwd -l 0-1 -n 2 -- -p 0x1 -q 2 --mac-updating -c hw
> +
> +6. Send random ip 64B packets from TG.
> +
> +7. Check performance from ioat app::
> +
> +Total packets Tx:                   xxx [pps]
> +
> +Test Case6: CBDMA performance cmparison between HW copies and SW
> copies
> +using different packet size
> +===============================================================
> ========
> +============================
> +
> +1.Bind four cbdma pors and one nic port to igb_uio driver.
> +
> +2.Launch ioatfwd app with three cores::
> +
> +./build/ioatfwd -l 0-2 -n 2 -- -p 0x1 -q 4  -c hw
> +
> +3. Send random ip packets from TG.
> +
> +4. Check performance from ioat app::
> +
> +Total packets Tx:                   xxx [pps]
> +
> +5.Launch ioatfwd app with three cores::
> +
> +./build/ioatfwd -l 0-2 -n 2 -- -p 0x1 -q 4 -c sw
> +
> +6. Send random ip packets from TG.
> +
> +7. Check performance from ioat app and compare with hw copy test::
> +
> +Total packets Tx:                   xxx [pps]
> --
> 2.17.1