DART-MX95 DPDK bring up

dmonge — Mon, 09 Dec 2024 23:00:50 GMT

Hi,

I am working on bringing up DPDK on the DART-MX95. I have been following the instructions in the i.MX Linux Reference Manual, specifically Chapter 10: Data Plane Development Kit (DPDK).

In section 10.5.2.2, the manual specifies the device tree (dtb) to be used for the i.MX 95 EVK. However, I couldn’t find any mention of a DPDK-supported device tree for the DART-MX95. Are there any recommended device tree configurations or specific modifications required for this platform?

Related Information:

I am using the nanbield release of Yocto.
The Yocto DPDK recipe comes from this source.

Additionally, I’ve encountered the following issues:

In section 10.5.4.2.1, the command below results in an error:

# devlink dev param set pci/0002:00:08.0 name si_num_rings cmode driverinit value 0106

/tmp/devlink dev param set pci/0002:00:08.0 name si_num_rings cmode driverinit value 0106 kernel answers: No such device

When attempting to set VF trust mode using the command:

# ip link set eth0 vf 0 trust on

RTNETLINK answers: Operation not supported

My primary issue is that DPDK does not recognize the port bonded for DPDK usage. To test DPDK functionality, I follow these steps:

# dpdk-devbind.py --bind=uio_pci_generic 0002:00:00.0

# dpdk-devbind.py -s

Network devices using DPDK-compatible driver

============================================

0002:00:00.0 'Device e101' drv=uio_pci_generic unused=vfio-pci

Network devices using kernel driver

===================================

0002:00:08.0 'Device e101' if=eth1 drv=fsl_enetc4 unused=vfio-pci,uio_pci_generic *Active*

Other Network devices

=====================

0002:00:10.0 'Device e101' unused=vfio-pci,uio_pci_generic

No 'Baseband' devices detected

==============================

No 'Crypto' devices detected

============================

No 'DMA' devices detected

=========================

No 'Eventdev' devices detected

==============================

No 'Mempool' devices detected

=============================

No 'Compress' devices detected

==============================

No 'Misc (rawdev)' devices detected

===================================

No 'Regex' devices detected

===========================

# /usr/share/dpdk/examples/dpdk-l2fwd

EAL: Detected CPU lcores: 6

EAL: Detected NUMA nodes: 1

EAL: Detected static linkage of DPDK

EAL: Multi-process socket /var/run/dpdk/rte/mp_socket

EAL: Scan for (fslmc) bus failed.

EAL: Selected IOVA mode 'PA'

EAL: VFIO support initialized

TELEMETRY: No legacy callbacks, legacy socket not created

MAC updating enabled

EAL: Error - exiting with code: 1

 Cause: No Ethernet ports - bye

Could you provide guidance on resolving these issues? Are there additional configurations or dependencies I need to address?

Thank you for your support.

Re: DART-MX95 DPDK bring up

joanxie — Tue, 10 Dec 2024 07:26:29 GMT

i.mx95 is still under preproduction, we don't have further information can share, pls contact local representative to get further help

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DART-MX95 DPDK bring up

Re: DART-MX95 DPDK bring up