[openib-general] [PATCH] IB_CM: Limit the MRA timeout

[Roland Dreier]

    Ishai> There is a bug in SRP Engenio target that send a large
    Ishai> value as service timeout. (It gets 30 which mean timeout of
    Ishai> (2^(30-8))=4195 sec.)  Such a long timeout is not
    Ishai> reasonable and it may leave the kernel module waiting on
    Ishai> wait_for_completion and may stuck a lot of processes.

OK, that's a problem, I guess...

    Ishai> The following patch allows the load of ib_cm module with a
    Ishai> limit on the timeout.

...but adding yet another knob that has to be set correctly can't be
the right way to fix this.  Should we just chop off too-big timeout
values onconditionally?  Or make Engenio fix their broken target and
tell everybody to upgrade their firmware?

 - R.