[ofa-general] 4K MTU with OpenSM?

[Dave Olson]

On Tue, 17 Mar 2009, Hal Rosenstock wrote:
| On Tue, Mar 17, 2009 at 3:02 PM, Ted H. Kim <Ted.Kim at sun.com> wrote:
| > Is there way to config 4K IB MTU with OpenSM?
| > What's the option of file setting for that?
| 
| See the partition configuration section in the man page or
| opensm/doc/partition-config.txt. It's something like:
| 
| Default=0x7fff,ipoib,mtu=5:ALL=full;
| 
| assuming you want this for IPoIB on the default partition.

Or even if you don't care about it for ipoib, just for other things
(just to clarify, as the ipoib part of it confused me at first).

| This syntax has been supported for quite a while now so I would expect
| it to be supported by most OpenSM versions being used.

It's worked fine for our testing of the qlogic infinipath HCAs for ofed
1.3 and ofed 1.4 versions of opensm.

Dave Olson
dave.olson at qlogic.com