rocev2 is not working Connect X5 with Mellanox OFED

[system]

HowTo Configure RoCE v2 for ConnectX-3 Pro using Mellanox SwitchX Switches https://community.mellanox.com/s/article/howto-configure-roce-v2-for-connectx-3-pro-using-mellanox-switchx-switches

Similar procedure not working for MLX5 Connect x5

modinfo mlx5_core also not providing roce_mode parameters . I am using MLXOFED stack 3.4.2

cat /sys/module/mlx5_core/parameters/roce_mod

[ophirm]

Hi,

RoCE mode is a parameter for ConnectX-3 Pro cards. ConnectX-4/5 doesn’t have this parameter.

See some examples here:

• HowTo Configure Lossless RoCE (PFC + ECN) End-to-End Using ConnectX-4 and Spectrum (Trust L2) https://community.mellanox.com/s/article/how-to-configure-roce-over-a-lossless-fabric--pfc---ecn--end-to-end-using-connectx-4-and-spectrum--trust-l2-x
• HowTo Configure Resilient RoCE (ECN) End-to-End Using ConnectX-4 and Spectrum (Trust L3) https://community.mellanox.com/s/article/howto-configure-roce-over-a-lossy-fabric--ecn--end-to-end-using-connectx-4-and-spectrum--trust-l3-x

There are more on the RoCE page.

Ophir.