Irvine-based Solarflare Communications has received $15M in a venture debt round, according to Hercules Technology Growth Capital. Hercules, which provides venture debt and equity to technology and life sciences companies, said Monday that the debt will go to augment Solarflare's sales and marketing efforts. Solarflare is a developer of 10 Gigabit Ethernet communications products, and is venture backed by Accel Partners, Anthem Venture Partners, Foundation Capital, Intel Capital, Miramar Venture Partners, Oak Investment Partners, and Revolution Ventures.