How to get the cx4 cfg file for mlxtrace

Infrastructure & Networking Software And Drivers SoC And SmartNIC
1

Hello,

I’d like do debug with my conectx-4 455 nic with mlxtrace, but not find the cfg file. How to get it?

Thanks,

2

mlxtrace is intended for debugging specific HW flows and by Nvidia employees only.
Once we identify an issue we need to debug in the field we provide encrypted cfg of the specific HW module we would like to trace. At that point the output can be collected and then parsed offline only on internal systems.
Regards,
Yaniv

3

Thanks, got it.
So, any rdma/roce debug tools suggusted against the mellanox nic for the end use?

4

It depends on what you would like to debug in the RDMA/RoCE world.
There are tools to debug the network, system, NIC FW, NIC HW, flow steering, driver, wire protocol, …
Start with this one: GitHub - Mellanox/linux-sysinfo-snapshot: Linux Sysinfo Snapshot
It will provide visibility into the system as well as network and more.
Run it on a node before your test and after the test and compare the two. Use it on multiple system at for the same test scenario and it will give you some insight at network level.
Regards,
Yaniv

5

Thanks for the reply. I just want to debug the qp, cq. etc. Some resource and message related the rdma. is wqdump the right one? but not find the mannual to explan the dump out put.

6

wqdump, resourcedump, rdma tool (from iproute2).