56. VF MAC Filter Tests

56.2. Test Case 2: test_kernel_2pf_2vf_1vm_mac_add_filter

  1. Get 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, and don’t set the VF MAC address at PF0:

    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` to get 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 driver 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, enable CRC strip on VF, disable promisc mode, add a new MAC to VF0 and then start:

    ./tools/dpdk_nic_bind.py --bind=igb_uio 00:06.0 00:07.0
./x86_64-native-linuxapp-gcc/app/testpmd -c 0x0f -n 4 -w 00:06.0 -w 00:07.0 -- -i --portmask=0x3 --tx-offloads=0x8fff

testpmd> port stop all
testpmd> port config all crc-strip on
testpmd> port start all
testpmd> set promisc all off
testpmd> mac_addr add 0 00:11:22:33:44:55
testpmd> set fwd mac
testpmd> start

    Note: In Jan, 2016, i40e doesn’t support mac_addr add operation, so the case will be failed for FVL/Fort park NICs.

  6. Use scapy to send 100 random packets with current VF0’s MAC, verify the packets can be received by one VF and can be forward to another VF correctly.

  7. Use scapy to send 100 random packets with new added VF0’s MAC, verify the packets can be received by one VF and can be forward to another VF correctly.

  8. Use scapy to send 100 random packets with a wrong MAC to VF0, verify the packets can’t be received by one VF and can be forward to another VF correctly.