Re: [dts] [PATCH V1 1/3] add vf rss test plan

["Liu, Yong" <yong.liu@intel.com>]

Huilong, one question about VF supported hash algorithm.

> -----Original Message-----
> From: dts [mailto:dts-bounces@dpdk.org] On Behalf Of xu,huilong
> Sent: Tuesday, January 12, 2016 6:53 PM
> To: dts@dpdk.org
> Subject: [dts] [PATCH V1 1/3] add vf rss test plan
> 
> Signed-off-by: xu,huilong <huilongx.xu@intel.com>
> ---
>  test_plans/vf_rss_test_plan.rst | 182
> ++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 182 insertions(+)
>  create mode 100644 test_plans/vf_rss_test_plan.rst
> 
> diff --git a/test_plans/vf_rss_test_plan.rst
> b/test_plans/vf_rss_test_plan.rst
> new file mode 100644
> index 0000000..f832924
> --- /dev/null
> +++ b/test_plans/vf_rss_test_plan.rst
> @@ -0,0 +1,182 @@
> +.. Copyright (c) <2016>, 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.
> +
> +==================================================================
> +Fortville RSS full support - Support configuring hash functions
> +==================================================================
> +
> +This document provides test plan for testing the function of Fortville:
> +Support configuring hash functions.
> +
> +Prerequisites
> +-------------
> +
> +2x Intel? 82599 (Niantic) NICs (2x 10GbE full duplex optical ports per
> NIC)
> +1x Fortville_eagle NIC (4x 10G)
> +1x Fortville_spirit NIC (2x 40G)
> +2x Fortville_spirit_single NIC (1x 40G)
> +
> +The one port of the 82599 connect to the Fortville_eagle;
> +The one port of Fortville_spirit connect to Fortville_spirit_single.
> +The three kinds of NICs are the target NICs. the connected NICs can send
> packets
> +to these three NICs using scapy.
> +
> +Network Traffic
> +---------------
> +
> +The RSS feature is designed to improve networking performance by load
> balancing
> +the packets received from a NIC port to multiple NIC RX queues, with each
> queue
> +handled by a different logical core.
> +
> +#1. The receive packet is parsed into the header fields used by the hash
> +operation (such as IP addresses, TCP port, etc.)
> +
> +#2. A hash calculation is performed. The Fortville  supports four hash
> function:
> +Toeplitz, simple XOR and their Symmetric RSS.
> +

Here mentioned that Fortville support three different types of algorithm. But in following plan, only default algorithm is validated.
My question is that whether VF can't change algorithm or here just tope?


> +#3. The seven LSBs of the hash result are used as an index into a 128/512
> entry
> +'redirection table'.
> +
> +The RSS RETA update feature is designed to make RSS more flexible by
> allowing
> +users to define the correspondence between the seven LSBs of hash result
> and
> +the queue id(RSS output index) by themself.
> +
> +
> +Test Case:  test_rss_hash
> +========================================
> +
> +The following RX Ports/Queues configurations have to be benchmarked:
> +
> +- 1 RX port / 4 RX queues (1P/4Q)
> +
> +
> +Testpmd configuration - 4 RX/TX queues per port
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> +
> +::
> +
> +  testpmd -c 1f -n 3  -- -i --rxq=4 --txq=4
> +
> +Testpmd Configuration Options
> +-----------------------------
> +
> +By default, a single logical core runs the test.
> +The CPU IDs and the number of logical cores running the test in parallel
> can
> +be manually set with the ``set corelist X,Y`` and the ``set nbcore N``
> +interactive commands of the ``testpmd`` application.
> +#1. got the pci device id of DUT, for example,
> +
> +./dpdk_nic_bind.py --st
> +
> +0000:81:00.0 'Ethernet Controller X710 for 10GbE SFP+' if=ens259f0
> drv=i40e unused=
> +0000:81:00.1 'Ethernet Controller X710 for 10GbE SFP+' if=ens259f1
> drv=i40e unused=
> +
> +#2. create 2 VFs from 2 PFs,
> +
> +echo 1 > /sys/bus/pci/devices/0000\:81\:00.0/sriov_numvfs
> +echo 1 > /sys/bus/pci/devices/0000\:81\:00.1/sriov_numvfs
> +./dpdk_nic_bind.py --st
> +
> +0000:81:00.0 'Ethernet Controller X710 for 10GbE SFP+' if=ens259f0
> drv=i40e unused=
> +0000:81:00.1 'Ethernet Controller X710 for 10GbE SFP+' if=ens259f1
> drv=i40e unused=
> +0000:81:02.0 'XL710/X710 Virtual Function' unused=
> +0000:81:0a.0 'XL710/X710 Virtual Function' unused=
> +
> +#3. detach VFs from the host, bind them to pci-stub driver,
> +
> +/sbin/modprobe pci-stub
> +
> +using `lspci -nn|grep -i ethernet` got VF device id, for example "8086
> 154c",
> +
> +echo "8086 154c" > /sys/bus/pci/drivers/pci-stub/new_id
> +echo 0000:81:02.0 > /sys/bus/pci/devices/0000:08:02.0/driver/unbind
> +echo 0000:81:02.0 > /sys/bus/pci/drivers/pci-stub/bind
> +
> +echo "8086 154c" > /sys/bus/pci/drivers/pci-stub/new_id
> +echo 0000:81:0a.0 > /sys/bus/pci/devices/0000:08:0a.0/driver/unbind
> +echo 0000:81:0a.0 > /sys/bus/pci/drivers/pci-stub/bind
> +
> +  or using the following more easy way,
> +
> +  virsh nodedev-detach pci_0000_81_02_0;
> +  virsh nodedev-detach pci_0000_81_0a_0;
> +
> +  ./dpdk_nic_bind.py --st
> +
> +  0000:81:00.0 'Ethernet Controller X710 for 10GbE SFP+' if=ens259f0
> drv=i40e unused=
> +  0000:81:00.1 'Ethernet Controller X710 for 10GbE SFP+' if=ens259f1
> drv=i40e unused=
> +  0000:81:02.0 'XL710/X710 Virtual Function' if= drv=pci-stub unused=
> +  0000:81:0a.0 'XL710/X710 Virtual Function' if= drv=pci-stub unused=
> +
> +  it can be seen that VFs 81:02.0 & 81:0a.0 's drv is pci-stub.
> +
> +#4. passthrough VFs 81:02.0 & 81:0a.0 to vm0, and start vm0,
> +
> +  /usr/bin/qemu-system-x86_64  -name vm0 -enable-kvm \
> +  -cpu host -smp 4 -m 2048 -drive file=/home/image/sriov-fc20-1.img -
> vnc :1 \
> +  -device pci-assign,host=81:02.0,id=pt_0 \
> +  -device pci-assign,host=81:0a.0,id=pt_1
> +
> +#5. login vm0, got VFs pci device id in vm0, assume they are 00:06.0 &
> 00:07.0, bind them to igb_uio driver,
> +and then start testpmd, set it in mac forward mode,
> +
> +./tools/dpdk_nic_bind.py --bind=igb_uio 00:06.0 00:07.0
> +
> +#6. Reta Configuration.  128 reta entries configuration::
> +
> +  testpmd command: port config 0 rss reta (hash_index,queue_id)
> +
> +#7. PMD fwd only receive the packets::
> +
> +  testpmd command: set fwd rxonly
> +
> +#8. rss recived package type configuration two received packet types
> configuration::
> +
> +  testpmd command: port config 0 rss ip/udp/tcp
> +
> +#9. verbose configuration::
> +
> +  testpmd command: set verbose 8
> +
> +#10. start packet receive::
> +
> +  testpmd command: start
> +#11. send packet and check rx port received packet by different queue.
> +  different hash type send different packet, example hash type is ip,
> packet src and dts ip not different
> +  sendp([Ether(dst="90:e2:ba:36:99:3c")/IP(src="192.168.0.4",
> dst="192.168.0.5")], iface="eth3")
> +  sendp([Ether(dst="90:e2:ba:36:99:3c")/IP(src="192.168.0.5",
> dst="192.168.0.4")], iface="eth3")
> +Test Case:  test_reta
> +========================================
> +   this case test hash reta table, the test steps same with test_rss_hash
> except config hash reta table
> +#1 before send packet, config hash reta,512(niantic nic have 128 reta)
> reta entries configuration::
> +
> +     testpmd command: port config 0 rss reta (hash_index,queue_id)
> --
> 1.9.3