Hi Aviv, thanks for the clarification.
Just to confirm - ConnectX-4 does support ZTR, but not ZTR-CC. I have enabled ZTR on my ConnectX-4 NIC, and have enabled ZTR-CC on my ConnectX-6 NIC. Currently, RDMA works just fine between those two cards. This should mean the regular ZTR is working, but not ZTR-CC correct? I followed the WinOF-2 documentation but there isn’t a way to verify that this is ZTR doing it work - although I do believe ZTR must be functioning correctly.
What would be really helpful is if the WinOF-2 and MLNX EN / OFED docs were more clear and went more in-depth about ZTR and ZTR-CC - it’s really exciting technology that I’m glad NVidia is working on.
EDIT: I’m also getting this error when trying to put in this command :
root@system~# mlxreg -d /dev/mst/mt4125_pciconf0 --reg_id 0x506e --reg_len 0x40 --set “0x0.0:8=1,0x4.0:4=15” -y
-E- Argument: “0x0 is invalid.