[openib-general] [PATCH for-2.6.18] IB/cma: option to limitMTU to 1K

[Michael S. Tsirkin]

Quoting r. Sean Hefty <mshefty at ichips.intel.com>:
> Subject: Re: [openib-general] [PATCH for-2.6.18] IB/cma: option to limitMTU to 1K
> 
> Michael S. Tsirkin wrote:
> >>Although, I don't like the idea of the CMA changing every path to use an MTU of
> >>1k.
> > 
> > Well, that's why it's off by default.
> > So, Ack?
> 
> I'd like to find a way to support a 1k MTU to tavor HCAs without making the MTU 
> 1k to other HCAs, in case we're dealing with a heterogeneous environment.

IMO the cleanway is to do it in SA.

> 
> Is this really the responsibility of the querying node or the SA?

IMO it's really SA's job.
But, a simple option as a work around for SA's that don't support
it properly would be also nice.

-- 
MST