[openib-general] Modifying QP state error

[Roland Dreier]

    Viswanath> The mthca state transistion code allows this
    Viswanath> transistion (RTS --> RESET), but the mthca
    Viswanath> hardware/firmware does not allow it. It allows
    Viswanath> RTS-> ERR->RESET. I will post the code later to
    Viswanath> reproduce this. I was trying to workaround the CQ
    Viswanath> destroy memory leak by caching QP entries and reusing
    Viswanath> them, but ran into other issues.

The hardware should allow it.  mthca does a transition directly to
reset whenever it destroys a QP, and I've never seen this failure,
even when destroying QPs in the RTS state.

 - R.