[ofa-general] max_mr limit

[Roland Dreier]

 > kernel: ib_mthca 0000:01:00.0: Profile requires 0x8000000 bytes; won't fit
 > in 0x7a00000 bytes of context memory.
 > So it's currently using 128MB as context memory?
 > 
 > I'm using dual-port DDR memfree HCA.

Are you sure it's memfree?  It's acting like it's not.

What is the output if you load the ib_mthca module with debug_level=1
set?  What firmware version do you have installed?

 > Also, where can I set the module parameter overrides?

You should be able to add parameters using modprobe.conf.  See the
manpage for modprobe.conf for more details.

 > modprobe ib_mtcha num_mpt=262144 num_mtt=2097152

I tried that here and it works, and I get

    ib_mthca 0000:0b:00.0: HCA context memory: reserving 706672 KB

in the debug output.

 - R.