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

From: Jeff Garzik
Date: Wed Aug 15 2007 - 22:27:26 EST


Steve Wise wrote:


David Miller wrote:
From: Sean Hefty <mshefty@xxxxxxxxxxxxxxxx>
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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