Adding SCSI Passthrough to CTL

[suraj ponugoti]

Hi,

This project is about exporting physical SCSI devices over iSCSI through CTL as an actual SCSI target.

Wiki Page: https://wiki.freebsd.org/SurajPonugoti
Git Repo: https://github.com/suraj5/freebsd

weekly updates: I have understood the internal operations of CTL and CAM. I also started working on adding new peripheral device 'passthrough'.

Thanks
Suraj