Etherboot help

I need to boot a server (Either WIndows/Linux) from a remote SAN which is
connected
to the server over a proprietary interconnect.  I plan to use etherboot
framework. Are
there similar drivers available in the existing framework I can look in to ?
Any pointers/help is appreciated... BTW, The interconnect card will have ROM
for
option ROM.

Thanks,
Viswa