[igb] Add igb driver
treee6105828bb7041ed3ca58d42b8526db252f95c2b
-rw-r--r-- 17982 COPYING
-rw-r--r-- 908 COPYRIGHTS
-rw-r--r-- 342 LOG
-rw-r--r-- 1650 README
drwxr-xr-x - contrib
drwxr-xr-x - src