I have this same configuration. what is strange for me, is that I had both the 10 gig nic, and the sas/sata controller working before I did a firmware update(trying to fix other issues). For the life of me, i could not figure out why I lost seeing the drives, and the nic.
I could see the nic in the advanced/passthrough screen, but just not in configuring network.
This post helped tremendously!
Thanks guys...