Re: RFC: InfiniBand hotplug agent

[Greg KH <greg@kroah.com>]

On Thu, Mar 23, 2006 at 09:11:02AM -0800, Roland Dreier wrote:
>     Greg> Why does your drivers care about the hostname?  The kernel
>     Greg> already knows this information anyway...
> 
> As I explained before, this script puts the hostname in the InfiniBand
> "node description," which is retrieved by various IB network
> management tools.  It makes the output of these tools much easier to
> read, since you can see things like "node1 (CA)" and "node2 (CA)" in
> the network management tools instead of just two copies of "CA".

Ick, the kernel is then printing that data back out somewhere else?  I
really don't want to know... :)

> Yes, I could modify the driver to look at system_utsname and pick a
> way to format that.  But that suffers from the problem of putting
> policy in the kernel (who picks the format for node descriptions?),
> although that's minor.  And we still have the problem of what to do
> before the hostname is set -- put "(none)" in our node description?
> 
> Anyway, do you think just having this node description setting in the
> kernel is the best way to go?

I think that your proposed solution will not work on the current round
of "enterprise" distros, so I don't think it is a real "solution".

As for a proposed one, I have no idea, sorry.

greg k-h


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