Re: [ofa-general] Re: [PATCH RFC] RDMA/CMA: Allocate PS_TCP ports from the host TCP port space.

[Jeff Garzik <jeff@garzik.org>]

Steve Wise wrote:
> David Miller wrote:
> > From: Sean Hefty <mshefty@ichips.intel.com>
> > Date: Thu, 09 Aug 2007 14:40:16 -0700
> >
> > > Steve Wise wrote:
> > > > Any more comments?
> > > Does anyone have ideas on how to reserve the port space without using 
> > > a struct socket?
> >
> > How about we just remove the RDMA stack altogether?  I am not at all
> > kidding.  If you guys can't stay in your sand box and need to cause
> > problems for the normal network stack, it's unacceptable.  We were
> > told all along the if RDMA went into the tree none of this kind of
> > stuff would be an issue.
>
> I think removing the RDMA stack is the wrong thing to do, and you 
> shouldn't just threaten to yank entire subsystems because you don't like 
> the technology.  Lets keep this constructive, can we?  RDMA should get 
> the respect of any other technology in Linux.  Maybe its a niche in your 
> opinion, but come on, there's more RDMA users than say, the sparc64 
> port.  Eh?

It's not about being a niche.  It's about creating a maintainable 
software net stack that has predictable behavior.

Needing to reach out of the RDMA sandbox and reserve net stack resources 
away from itself travels a path we've consistently avoided.


> > I will NACK any patch that opens up sockets to eat up ports or
> > anything stupid like that.
>
> Got it.

Ditto for me as well.

	Jeff


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