Inquiry Regarding GID Configuration and DCT Support in RoCEv2

[llukas131]

Dear authors,

I am using RoCEv2 and have encountered an issue similar to the one discussed here.
#6
Specifically, when I attempted to set the GID manually in a hardcoded manner, the code failed at that point.

mlx5_cmd_check:795:(pid 18408):CREATE_DCT(8x710) op_mod(8xO) failed,status bad parameter(Ox3)，syndrome (Oxb84876)
mlx5_core_create_dct:305:(pid 18408): create DCT failed， ret -22
[ib_create_ap_dct] check kernel error EINVAL
[dct] err create dc qp.

Additionally, I would like to inquire if there is a method to avoid using DCT-related functions, as it seems that RoCEv2 does not support DCT functionality.

Could you kindly provide guidance on these issues?

Thank you!