Re: [PATCH] mlx4: allow for 4K mtu configuration of IB ports

[Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>]

Roland Dreier wrote:
> I mean set the MTU port-by-port with the module loaded, the same way
> we are supposed to be able to do for the port type.  Rather than having
> one global module parameter.

The HCA has set of per port buffers, from which comes the dependency 
between VLs to MTU. So with this code running for each IB hca/port, 
we're actually doing that logic port-by-port. I assume you didn't mean 
let the user specify a desired MTU for each hca/port... or I'm still not 
fully with you?

Anyway, I'd be happy to provide at least the folks that use torus/mesh 
and/or sophisticated QoS schemes an ability to use eight VLs with the 
current HW, so how about keeping the module param but with default value 
turned on?

Or.

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