There are licenses built into the BCOM NICs. I show that ISCSi boot is a standard option and not a licensed option on the 5719, but it is possible that the reseller of the 5719 you purchased excluded some features from the card to reduce cost. I would suggest checking with them to see if that is the case.
Also, I show that the 5719 is compatible with the T110 II, but I don't show it is compatible with the first release T110. If you don't have the second revision then there may be limited functionality.
Thanks