Hi!
Here is my PERSONAL LAB's configuration.
You must configure your ESXi host, too!
- I think you miss the default configuration value of Mellanox vSphere OFED 1.8.2.
Here is sample script.
esxcli system module parameters set -m=mlx4_core -p="mtu_4k=1 msi_x=1"
If you configure your Partition on your SM and install IB HCA driver for ESXi correctly,
there is a final step that you must run this script on your ESXi host's shell (or SSH) console and reboot your host.
Then you can configure your vSwitch to MTU=4092.
- Maximum value isn't 4096.
Good luck~!