Can't find network interface on BlueField-2 DPU

I use the MBF2H332A-AENOT DPU card purchased by the company.This card has been used by my colleague all along, and recently she told me that the network cannot establish a connection. Previously, it was used as a regular network interface card.
I received this card and installed the complete development environment on the host system, as well as the latest doca.


But there are some troubles in the process of after pushing BFB.
I pushed the software package according to the official documentationhttps://docs.nvidia.com/doca/sdk/nvidia+doca+installation+guide+for+linux/index.html#src-2654401500_id-.NVIDIADOCAInstallationGuideforLinuxv2.7.0-InstallingFullDOCAImageonDPUviaHost, and the system on DPU is indeed running. I can also access DPU.
But I have observed that there will be rdma related dmesg generated during the DPU startup process.

After logging in, the network interface of DPU cannot be queried using the command.

Even unable to update the firmware.

Under the host system, network interfaces cannot be seen and firmware cannot be updated.

image
I hope there are experts who can help me. I don’t want to go to my suppliers or agents because I don’t think this card is bad enough to be repaired.

There are some faild on rshim.I tried to restart it, but seems nothing to do.

Reset all BF2 parameters for both ports to default from the physical host:

mst start

mst status -v

mlxconfig -d r

Power cycle (cold boot) physical host

run echo “DISPLAY_LEVEL 2” > /dev/rshim0/misc’ before updating the BFB

Connect to the console “minicom -D /dev/rshim0/console”

SW reset can be initiated from rshim “echo “SW_RESET 1” > /dev/rshim0/misc”

Push image “bfb-install --bfb bf-bundle-2.7.0-33_24.04_ubuntu-22.04_prod.bfb --rshim rshim0”

If failure is encountered, check “cat /dev/rshim0/misc”

If image successfully loaded, flash FW from DPU or from physical host follow by a cold boot

Should the issue persist & you have a supported BF2 Nvidia contract, open a support case and our team will further investigate/debug
Enterprise Support EnterpriseSupport@nvidia.com

emmmm
It seems like it cannot be modified.
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I don’t really want to provide a purchase contract, because if I want to repair it, I need to use the return process to return this card to our warehouse, and then our procurement specialist will proceed to apply for repair. Only our procurement specialist knows about the purchase contract. This process is quite cumbersome and time-consuming. And I also want to know how to repair this card in this situation.

Hello?