54. Intel® Ethernet 700 Series DDP (Dynamic Device Personalization) Tests¶

Intel® Ethernet 700 Series supports DDP (Dynamic Device Personalization) to program analyzer/parser via AdminQ. Profile can be used to update Intel® Ethernet 700 Series configuration tables via MMIO configuration space, not microcode or firmware itself. For microcode/FW changes new HW/FW/NVM image must be uploaded to the NIC. Profiles will be stored in binary files and need to be passed to AQ to program Intel® Ethernet 700 Series during initialization stage.

With DDP, MPLS (Multi-protocol Label Switching) can be supported by NVM with profile updated. Below HW features have be enabled for MPLS:

MPLS packet type recognition
Cloud filter for MPLS with MPLS label

Only 25G NIC supports DDP and MPLS so far.

54.1. Prerequisites¶

if test DPDK PF + DPDK VF, bind port to igb_uio:

Host PF in DPDK driver. Create 1 VF from 1 PF with DPDK driver:

./usertools/dpdk-devbind.py -b igb_uio 81:00.0
echo 1 >/sys/bus/pci/devices/0000:81:00.0/max_vfs

Detach VF from the host:
```
rmmod iavf
```
Pass through VF 81:10.0 to vm0, start vm0.
Login vm0, then bind VF0 device to igb_uio driver.
Start testpmd on host and vm0 in chained port topology, add txq/rxq to enable multi-queues. In general, PF’s max queue is 64, VF’s max queue is 4:
```
./<build>/app/dpdk-testpmd -c f -n 4 -- -i --port-topology=chained
--txq=4 --rxq=4
```

if only test PF:

bind pf port to vfio-pci:

./usertools/dpdk-devbind.py -b vfio-pci 81:00.0

Start testpmd on host:

./<build>/app/dpdk-testpmd -c f -n 4  -- -i --port-topology=chained --txq=64 --rxq=64

54.2. Test Case 1: Load dynamic device personalization¶

Stop testpmd port before loading profile:
```
testpmd > stop port all
```
Load profile mplsogre-l2.pkgo which is a binary file:
```
testpmd > ddp add (port_id) (profile_path
```
Check profile info successfully:
```
testpmd > ddp get list (port_id)
```
Start testpmd port

testpmd > start port all

Note

Loading ddp is the prerequisite for below MPLS relative cases, operate global reset or lanconf tool to recover original setting. Global Reset Trigger reg is 0xb8190, first cmd is core reset, second cmd is global reset:

testpmd > write reg 0 0xb8190 1
testpmd > write reg 0 0xb8190 2

54.3. Test Case 2: MPLS udp packet for PF¶

Add udp flow rule for PF, set label as random 20 bits, queue should be among configured queue number:

testpmd > flow create 0 ingress pattern eth / ipv4 / udp / mpls label
is 0x12345 / end actions pf / queue index <id> / end

Set fwd rxonly, enable output and start PF and VF testpmd

Send udp MPLS packet with good checksum, udp dport is 6635, label is same as configured rule:

sendp([Ether()/IP()/UDP(dport=6635)/MPLS(label=0x12345)/Ether()/IP()
/TCP()], iface=txItf)

Check PF could receive configured label udp packet, checksum is good, queue is configured queue

Send udp MPLS packet with bad checksum, udp dport is 6635, label is same as configured rule:

sendp([Ether()/IP()/UDP(chksum=0x1234,dport=6635)/MPLS(label=0x12345)/Ether()
/IP()/TCP()], iface=txItf)

Check PF could receive configured label udp packet, checksum is good, queue is configured queue

54.4. Test Case 3: MPLS gre packet for PF¶

Add gre flow rule for PF, set label as random 20 bits, queue should be among configured queue number:

testpmd > flow create 0 ingress pattern eth / ipv4 / gre / mpls label is
0xee456 / end actions pf / queue index <id> / end

Set fwd rxonly, enable output and start PF and VF testpmd

Send gre MPLS packet with good checksum, gre proto is 8847, label is same as configured rule:

sendp([Ether()/IP(proto=47)/GRE(proto=0x8847)/MPLS(label=0xee456)/Ether()
/IP()/UDP()], iface=txItf)

Check VF could receive configured label gre packet, checksum is good, queue is configured queue

Send gre MPLS packet with bad checksum, gre proto is 8847, label is same as configured rule:

sendp([Ether()/IP(proto=47)/GRE(chksum=0x1234,proto=0x8847)/MPLS(label=0xee456)
/Ether()/IP()/UDP()], iface=txItf)

Check VF could receive configured label gre packet, checksum is good, queue is configured queue

54.5. Test Case 4: MPLS udp packet for VF¶

Add udp flow rule for VF, set label as random 20 bits, queue should be among configured queue number:

testpmd > flow create 0 ingress pattern eth / ipv4 / udp / mpls label is 0x234
/ end actions vf id 0 / queue index <id> / end

Set fwd rxonly, enable output and start PF and VF testpmd
Send udp MPLS packet with good checksum, udp dport is 6635, label is same as configured rule:
```
sendp([Ether()/IP()/UDP(dport=6635)/MPLS(label=0x234)/Ether()/IP()/TCP()],
iface=txItf)
```
Check VF could receive configured label udp packet, checksum is good, queue is configured queue

Send udp MPLS packet with bad checksum, udp dport is 6635, label is same as configured rule:

sendp([Ether()/IP()/UDP(chksum=0x1234,dport=6635)/MPLS(label=0x234)/Ether()
/IP()/TCP()], iface=txItf)

Check VF could receive configured label udp packet, checksum is good, queue is configured queue

54.6. Test Case 5: MPLS gre packet for VF¶

Add gre flow rule for VF, set label as random 20 bit, queue should be among configured queue number:

testpmd > flow create 0 ingress pattern eth / ipv4 / gre / mpls label is
0xffff / end actions vf id 0 / queue index <id> / end

Set fwd rxonly, enable output and start PF and VF testpmd

Send gre MPLS packet with good checksum, gre proto is 8847, label is same as configured rule:

sendp([Ether()/IP(proto=47)/GRE(proto=0x8847)/MPLS(label=0xffff)/Ether()
/IP()/UDP()], iface=txItf)

Check VF could receive configured label gre packet, checksum is good, queue is configured queue

Send gre MPLS packet with bad checksum, gre proto is 8847, label is same as configured rule:

sendp([Ether()/IP(proto=47)/GRE(chksum=0x1234,proto=0x8847)/MPLS(label=0xffff)
/Ether()/IP()/UDP()], iface=txItf)

Check VF could receive configured label gre packet, checksum is good, queue is configured queue