188. NIC VF Smoke Test

188.1. Description

Test the basic functions of dpdk. 1. Port connection status. 2. Launch testpmd normally. 3. Basic rx and tx.

188.2. Prerequisites

  1. Hardware:

    82599/Intel® Ethernet 700 Series/Intel® Ethernet 800 Series

  2. Software:

  3. Compile DPDK:

    CC=gcc meson -Denable_kmods=True -Dlibdir=lib --default-library=static x86_64-native-linuxapp-gcc
ninja -C x86_64-native-linuxapp-gcc

  4. Get the pci device id of DUT, for example:

    ./usertools/dpdk-devbind.py -s

0000:86:01.0 'Device 1593' if=enp134s0f0 drv=ice unused=vfio-pci

  5. Generate 1 VFs on PF:

    echo 1 > /sys/bus/pci/devices/0000:86:01.0/sriov_numvfs

./usertools/dpdk-devbind.py -s
0000:86:01.0 'Ethernet Adaptive Virtual Function 1889' if=enp134s1 drv=iavf unused=vfio-pci

  6. Set VF MAC address:

    ip link set enp134s0f0 vf 0 mac 00:01:23:45:67:89

  7. Bind VF to dpdk driver:

    modprobe vfio-pci
./usertools/dpdk-devbind.py -b vfio-pci 0000:86:01.0

  8. Launch dpdk on VF:

if test IAVF, start up VF port:

./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0xf -n 4 -a 0000:86:01.0 --file-prefix=pf -- -i --rxq=4 --txq=4
testpmd> set fwd mac
testpmd> set verbose 3
testpmd> start
testpmd> show port info all

if test DCF, set VF port to dcf and start up:

Enable kernel trust mode:

    ip link set $PF_INTF vf 0 trust on

 ./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -c 0xf -n 4 -a 0000:86:01.0,cap=dcf --file-prefix=pf -- -i --rxq=4
 --txq=4

Note

make dcf as full feature pmd is dpdk22.07 feature, and only support E810 series nic.

188.3. Test Case 1: test enable and disable jumbo frame

  1. when launch dpdk on VF, add parameter ‘–max-pkt-len=9600 –tx-offloads=0x00008000’

  2. set fwd mode is mac:

    testpmd> set fwd mac
testpmd> set verbose 3
testpmd> start

  3. Send a packet with size 9601 bytes

    testpmd> show port stats 0

######################## NIC statistics for port 0  ########################
RX-packets: 0          RX-errors: 1         RX-bytes: 0
TX-packets: 0          TX-errors: 0         TX-bytes: 0
############################################################################

Verify that TX-bytes on port 0 and RX-bytes on port 0 are 0.

  1. Send a packet with size 9600 bytes

    testpmd> show port stats 0

######################## NIC statistics for port 0  ########################
RX-packets: 1          RX-errors: 0         RX-bytes: 9600
TX-packets: 1          TX-errors: 0         TX-bytes: 9600
############################################################################

Verify that TX-bytes on port 0 and RX-bytes on port 0 are 9600.

  1. Set mtu is 1500

    testpmd> port config mtu 1500

  2. Send a packet with size 1518 bytes

    testpmd> show port stats 0

######################## NIC statistics for port 0  ########################
RX-packets: 1          RX-errors: 0         RX-bytes: 1518
TX-packets: 1          TX-errors: 0         TX-bytes: 1518
############################################################################

Verify that TX-bytes on port 0 and RX-bytes on port 0 are 1518

  1. Send a packet with size 1519 bytes

    testpmd> show port stats 0

######################## NIC statistics for port 0  ########################
RX-packets: 0          RX-errors: 1         RX-bytes: 0
TX-packets: 0          TX-errors: 0         TX-bytes: 0
############################################################################

Verify that TX-bytes on port 0 and RX-bytes on port 1 are 0

188.4. Test Case 2: test RSS

  1. set fwd mode is rxonly:

    testpmd> set fwd rxonly
testpmd> set verbose 1
testpmd> start
  1. Send different hash types’ packets with different keywords, then check rx port

    could receive packets by different queues:

    sendp([Ether(dst="00:01:23:45:67:89")/IP(src="192.168.0.4", dst=RandIP())], iface="eth3")

188.5. Test Case 3: test reset RX/TX queues

  1. Run port stop all to stop all ports.
  2. Run port config all rxq 2 to change the number of receiving queues to two.
  3. Run port config all txq 2 to change the number of transmitting queues to two.
  4. Run port start all to restart all ports.
  5. Check with show config rxtx that the configuration for these parameters changed.
  6. Run start again to restart the forwarding, then start packet generator to transmit and receive packets, and check if testpmd is able to receive and forward packets successfully.