# DPDK and VPP

This is pain.

I'm not able to build dpdk / vpp for alpine aarch64.

## DPDK
Testing with dpdk-testpmd. Does not seem to like the NIC layout we have here.

We get this error complaining when some NICs controlled by linux
```
# dpdk-testpmd -a dpaa_bus:fm1-mac9 -a dpaa_bus:fm1-mac10 -- -i
EAL: Detected CPU lcores: 4estpmd -a dpaa_bus:fm1-mac9 -a dpaa_bus:fm1-mac10 -- -i
EAL: Detected NUMA nodes: 1
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: Error parsing /proc/mounts
EAL: Error parsing /proc/mounts
EAL: Error parsing /proc/mounts
EAL: VFIO support initialized
dpaa: This is LS1046A family SoC.
dpaa: FMan version is 0x06
dpaa: /soc/fsl,dpaa/ethernet@1: no fsl,qman-frame-queues-rx(2)
dpaa: if_init(/soc/fsl,dpaa/ethernet@1)(2)
dpaa: FMAN driver init failed (2)
dpaa: netcfg failed: /dev/fsl_usdpaa device not available
dpaa: Check if you are using USDPAA based device tree
TELEMETRY: No legacy callbacks, legacy socket not created
testpmd: No probed ethernet devices
Interactive-mode selected
testpmd: create a new mbuf pool <mb_pool_0>: n=171456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Done
testpmd> quit
```

Works only when all interfaces are handed over
```
# dpdk-testpmd -a dpaa_bus:fm1-mac9 -a dpaa_bus:fm1-mac10 -- -i
EAL: Detected CPU lcores: 4
EAL: Detected NUMA nodes: 1
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
dpaa: This is LS1046A family SoC.
dpaa: FMan version is 0x06
dpaa: DPAA Bus Detected
TELEMETRY: No legacy callbacks, legacy socket not created
Interactive-mode selected
testpmd: create a new mbuf pool <mb_pool_0>: n=171456, size=2176, socket=0
testpmd: preferred mempool ops selected: dpaa
Configuring Port 0 (socket 0)

Port 0: link state change event
Port 0: E8:F6:D7:00:1E:95
Configuring Port 1 (socket 0)

Port 1: link state change event
Port 1: E8:F6:D7:00:1E:96
Checking link statuses...
Done
testpmd> quit

Stopping port 0...
Stopping ports...
Done

Stopping port 1...
Stopping ports...
Done

Shutting down port 0...
Closing ports...

Port 0: link state change event
Port 0 is closed
Done

Shutting down port 1...
Closing ports...

Port 1: link state change event
Port 1 is closed
Done

Bye...
```

## VPP
Can't even build. The toolchain is messy. So many errors to plow through. I gave up.