Hello,   What version of EQL FW are you using?   Yes, it can be done, however a couple of caveats first.  1.) Install the latest firmware / boot code and driver for the Broadcom cards.  2.)  Put the node into maint mode then you can logout the SW iSCSI conenctions and log in using the HW iSCSI adapter.   3.)  Don't try to do this with an active/online node.    The benefit of the HW iSCSI adapter is reducing CPU overhead, if you are not maxing out the CPU now, do not expect a large increase in performance after switching to the HW iSCSI adapter.  Regards,
Hi, We have M1000e CMC, 10 x M620 blades with Broadcom 57810 10gig cards dedicated for iSCSI to Equallogic PS 6110 SAN. Currently software iscsi initiator being used on Windows 2012 hyper-v cluster to connect PS6110 SAN. 150 VMs are in production on 15 CSVs. We want to change initiator from software to hardware on all our existing blades without effecting production CSV. Is it possible on 2012 hyper-v cluster to have 5 blades with software initiator and remaining 5 blades with hardware initiator presenting same CSV to the cluster? If software and hardware initiator coexistence possible across hosts then I can apply this change one by one gradually on our 10 blades without having cluster down time.   
Migration from software iscsi initiator to hardware initiator on 2012 Hyper-v 
cluster.