dell storage compatibility matrix 2015:
EqualLogic SAN over DCB Solution for VMware ESXi 5.1 (2044431)
Based on the above KB article the steps (on a host Converged Network Adapter side) should be:
- Enable iSCSI Offload or iSCSI HBA mode.
- Select DCB Willing or Accept DCB Settings from Switch (or similar setting) to enable DCB willing mode.
- Install appropriate iSCSI Offload/HBA VMware drivers provided by the vendor and located on the VMware Hardware Compatibility List.
I was searching the NIC firmware options during boot for enabling DCB or iSCSI offload, unfortunately I couldn't find any of them.