Khosla Ventures, the eponymous venture firm helmed by longtime Silicon Valley rainmaker, Vinod Khosla, is raising $1.1 billion for its latest venture fund, according to documents from the Securities and Exchange Commission. The filing was first spotted by Ari Levy over at CNBC. Khosla, whose investing career began at Kleiner Perkins Caufield & Byers (back when it was still called Kleiner Perkins Caufield & Byers) is rightly famous for a number of bets on enterprise software companies and was a richly rewarded co-founder of Sun Microsystems before venturing into the…