Cannot access to SmartNIC after modifying OVS bridge configurations on Bluefield

Infrastructure & Networking BlueField
1

Hi,

I was trying to access Bluefield from a server and implement TLS hardware offloading based on it. When I configured the OVS bridge on Bluefield following this guide (TLS Offload :: NVIDIA DOCA SDK Documentation), I added the rshim interface using this command “ovs-vsctl add-port ovs-br0 tmfifo_net0” and this command somehow disables the rshim access from my server to Bluefield. I cannot access it again through ssh. The guide said I should use the interfaces facing the host in that command and probably I used the wrong interface for this command.

To change the configuration, I need to access it first, but the current configuration makes me cannot access it from my server via rshim. I wonder what I should do in this case. Thanks in advance for any assistance or suggestions.

2

Hi,
One solution is to use MBF25D kit or another one for your board and connect to console over usb/uart.

3

hi

you can reburn the BFB image to the DPU through rshim interface
then all the config will be reset.

Thank you
Meng, Shi

4

Hi,

Thanks for your help! I have reinstalled the BFB following this link: NVIDIA Networking Docs. Now I am able to ping DPU (command: ping -I tmfifo_net0 192.168.100.2 -c2) but still fail to log in to it (command: ssh ubuntu@192.168.100.2). After I enter the password, it shows: Permission denied, please try again. I wonder if you know the reason. Thanks for your time and help again!

5

hi

after reinstall the BFB, if you do not change the password cfg in BFB, the passoword should be reset to default, ubuntu/ubuntu

Thank you
Meng, Shi

6

Hi,

Problem solved. Thank you so much for your time and help.

7

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