We are using two Mellanox ConnectX-3 VPI (MT04099) on a Windows 2012 R2. mlx4eth63.sys and mlx4_bus.sys → 4.60.17718.0.
It is working fine but we have a cosmetic issue. The resource monitor display does not show any activity even if there is activity on the interfaces.
I did not see anything specific in the release notes on this, but Mellanox has a later version 4.80.50000 on their website. Might be worth a shot to try the new driver on a test sever.
Mellanox Products: Mellanox OFED for Windows (WinOF) http://www.mellanox.com/page/products_dyn?product_family=32&mtag=windows_sw_drivers
Infiniband has a kernel bypass characteristic.
Did you check your IB switch’s log?
I thinki that’s a basic check point.