Looks like the support has been in the kernel since F13.
LSI was supplying drivers for Fedora up to F13, but then stopped, probably because the support was already in Fedora after that point.
LSI is still putting out the utilities, though. There are several versions of the MegaRAID storage manager, and MegaCLI and even some firmware updates available from LSI
http://www.lsi.com/support/products/...AS8704EM2.aspx