Yes, our driver and NICs are capable of doing 40G with ethernet and infiniband (IPoIB). The latest driver ior IB would be 18.104.22.168
I know of quite a few customers who are using these setups.
I have one questions:
My customer have Communicate hypervisors 2 Cards Mellanox Technologies MT26428 .
The question is: You can configure the Mellanox 40Gb cards working with vmware 5.5? Or rather, can support 40 Gb interface to support this bandwidth with VMware?
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ESXi 5.5 supports IPoIB, as far as I know you can reach pretty good results (not wire speed) with IPoIB and VMs