In Solaris 11.1:
The tavor driver that supports older InfiniBand HCAs (Host Channel Adapters) will be removed and not supported. No functionality for InfiniBand on these HCAs will be supported in the future, including firmware upgrade by using the fwflash utility.
Note: The tavor driver...
The server is IB card Infinihost III DDR VEN-15B9, DEV-6278
On Solaris 11 card seems built-in drivers and appears IPoIB interface.
When you update (online) or set to "zero" Solaris 11.1 card is not seen.
How to add a driver from Solaris 11 to Solaris 11.1?