um... 4.1 update 1 is supported according to the driver. and... the last part is basically non-sense. I cannot simply "update host with later version" without tens of thousands of dollars.
Is this driver called "ESX41u1_MLNX-OFED-1.4.1-2.0.000.zip" not supported? is esxi not supported?
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Mellanox MT26428 InfiniBand QDR 673c | VMware Communities
says it is supported there