21. ICE DCF Data Path Tests¶
21.1. Description¶
This document provides the plan for testing DCF data path function of Intel® Ethernet 800 Series.
21.2. Common steps for launching DCF¶
Generate 1 trust VF on 1 PF, and request 1 DCF on the trust VF. PF should grant DCF mode to it.
Generate 4 VFs on PF
echo 4 > /sys/bus/pci/devices/0000:18:00.0/sriov_numvfs
Set a VF as trust
ip link set enp24s0f0 vf 0 trust on
ip link set enp27s0f0 vf 0 mac D2:6B:4C:EB:1C:26
Launch dpdk on the VF, request DCF mode
./usertools/dpdk-devbind.py -b vfio-pci 18:01.0
./x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 6-10 -n 4 -a 18:01.0,cap=dcf --file-prefix=vf -- -i --rxq=4 --txq=4
21.3. Test Case: Launch DCF and do macfwd¶
Execute common steps to prepare DCF test environment
Set macfwd
set fwd mac
start
Launch tcpdump to sniffer the packets from DCF
tcpdump -i enp24s0f1 -vvv -Q in
Send packets from tester(scapy) to the VF by MAC address(D2:6B:4C:EB:1C:26)
p = Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1",dst="192.168.1.3")/Raw('x'*64)
sendp(p, iface=intf, count=100)
Expect tester can get packets which loopbacked by DCF.
21.4. Test Case: Check default rss for L3¶
DCF data path support RSS packets by default. For L3 packets, input set is IP src/dst. For tunneling packets, input set is inner IP src/dst.
Execute common steps to prepare DCF test environment
Set rxonly forward mode
set fwd rxonly
set verbose 1
start
Send a series packets to check if DCF RSS is correct for IPv4
intf="enp175s0f0"
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1", dst="192.168.1.2")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1", dst="192.168.1.3")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.3", dst="192.168.1.2")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1", dst="192.168.1.2")/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3, and should be same to p4. check the packets are distributed to queues by rss.
Send a series packets to check if DCF RSS is correct for IPv6
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::22", dst="::11")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::22", dst="::12")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::21", dst="::11")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::22", dst="::11")/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3, and should be same to p4. check the packets are distributed to queues by rss.
Send a series packets to check if DCF RSS is correct for tunnelling packet (inner IPv4)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.1", dst="192.168.1.3")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.3", dst="192.168.1.2")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="11:22:33:44:55:77")/IP(src="1.1.1.2", dst="2.2.2.1")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="11:22:33:44:55:77")/IPv6(src="::11", dst="::22")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3. p1 hash value is equal to p4 and p5. check the packets are distributed to queues by rss.
Send a series packets to check if DCF RSS is correct for tunnelling packet (inner IPv6)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::22", dst="::11")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::22", dst="::12")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::21", dst="::11")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="11:22:33:44:55:77")/IP(src="1.1.1.2", dst="2.2.2.1")/GRE()/IPv6(src="::22", dst="::11")/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="11:22:33:44:55:77")/IPv6(src="::33", dst="::44")/GRE()/IPv6(src="::22", dst="::11")/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3. p1 hash value is equal to p4 and p5. p1/p2/p3 should be devided into different queues.
21.5. Test Case: Check default rss for L4¶
DCF data path support RSS packets by default. For L3 packets, input set is IP src/dst. For tunneling packets, input set is inner IP src/dst.
Execute common steps to prepare DCF test environment
Set rxonly forward mode
set fwd rxonly
set verbose 1
start
Send a series packets to check if DCF RSS is correct for IPv4
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1", dst="192.168.1.2")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1", dst="192.168.1.3")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.3", dst="192.168.1.2")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1", dst="192.168.1.2")/UDP(sport=1235, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="192.168.1.1", dst="192.168.1.2")/UDP(sport=1234, dport=5679)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:22:33:44:55:77")/IP(src="192.168.1.1", dst="192.168.1.2")/TCP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3 or p4 or p5, and should be equal to p6. check the packets are distributed to queues by rss.
Send a series packets to check if DCF RSS is correct for IPv6
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::22", dst="::11")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::22", dst="::12")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::21", dst="::11")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::22", dst="::11")/UDP(sport=1235, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IPv6(src="::22", dst="::11")/UDP(sport=1234, dport=5679)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="11:22:33:44:55:77")/IPv6(src="::22", dst="::11")/TCP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3 or p4 or p5, and should be equal to p6. check the packets are distributed to queues by rss.
Send a series packets to check if DCF RSS is correct for tunnelling packet (inner IPv4)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.1", dst="192.168.1.3")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.3", dst="192.168.1.2")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/UDP(sport=1235, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/UDP(sport=1234, dport=5679)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:22:33:44:55:77")/IP(src="1.1.1.2", dst="2.2.2.1")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:22:33:44:55:77")/IPv6(src="::11", dst="::22")/GRE()/IP(src="192.168.1.1", dst="192.168.1.2")/TCP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3 or p4 or p5, and should be equal to p6 and p7. check the packets are distributed to queues by rss.
Send a series packets to check if DCF RSS is correct for tunnelling packet (inner IPv6)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::22", dst="::11")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::22", dst="::12")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::21", dst="::11")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::22", dst="::11")/UDP(sport=1235, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:11:22:33:44:55")/IP(src="1.1.1.1", dst="2.2.2.2")/GRE()/IPv6(src="::22", dst="::11")/UDP(sport=1234, dport=5679)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:22:33:44:55:77")/IP(src="1.1.1.2", dst="2.2.2.1")/GRE()/IPv6(src="::22", dst="::11")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
sendp(Ether(dst="D2:6B:4C:EB:1C:26", src="00:22:33:44:55:77")/IPv6(src="::33", dst="::44")/GRE()/IPv6(src="::22", dst="::11")/UDP(sport=1234, dport=5678)/Raw('x'*64), iface=intf)
- Expected:
- p1 hash value is not equal to p2 or p3 or p4 or p5, and should be equal to p6 and p7. check the packets are distributed to queues by rss.
21.6. Test Case: Create rule with to original VF action¶
DCF data path support RSS packets by default. For L3 packets, input set is IP src/dst. For tunneling packets, input set is inner IP src/dst.
Execute common steps to prepare DCF test environment
Set rxonly forward mode
set fwd rxonly
set promisc all off
set verbose 1
start
Send a packet, check the DCF can’t recieve the packet (Dest mac address is not DCF’s mac)
sendp([Ether(dst="68:05:ca:8d:ed:a8")/IPv6(src="CDCD:910A:2222:5498:8475:1111:3900:1518", dst="CDCD:910A:2222:5498:8475:1111:3900:2020",tc=3)/TCP(sport=25,dport=23)/("X"*480)], iface=intf, count=1)
Create a rule to DCF
flow create 0 ingress pattern eth dst is 68:05:ca:8d:ed:a8 / ipv6 dst is CDCD:910A:2222:5498:8475:1111:3900:2020 tc is 3 / tcp src is 25 dst is 23 / end actions port_representor port_id 0 / end
Send the packet again, check DCF can recieve the packet
sendp([Ether(dst="68:05:ca:8d:ed:a8")/IPv6(src="CDCD:910A:2222:5498:8475:1111:3900:1518", dst="CDCD:910A:2222:5498:8475:1111:3900:2020",tc=3)/TCP(sport=25,dport=23)/("X"*480)], iface=intf, count=1)
Destory the rule on DCF
flow destroy 0 rule 0
Send the packet agiain, check DCF can’t recieve the packet
sendp([Ether(dst="68:05:ca:8d:ed:a8")/IPv6(src="CDCD:910A:2222:5498:8475:1111:3900:1518", dst="CDCD:910A:2222:5498:8475:1111:3900:2020",tc=3)/TCP(sport=25,dport=23)/("X"*480)], iface=intf, count=1)
21.7. Test Case: Measure performance of DCF interface¶
The steps are same to iAVF performance test, a slight difference on launching testpmd devarg. DCF need cap=dcf option. Expect the performance is same to iAVF