The Proxmox Wiki's Infiniband section documents setups for Proxmox v. 1.n and 2.n but there is nothing for v. 3.n. Any pointers to a good Proxmox 3.n Infiniband HOWTO would be appreciated. TIA.
Nothing has changed since 2.x. Follow those directions and you will be good to go. I went ahead and updated the wiki to reflect that, along with another frequently asked question.