linux-kernel - Re: [ofa-general] Re: [PATCH RFC] RDMA/CMA: Allocate PS

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Date:	Wed, 10 Oct 2007 14:01:07 -0700
From:	Sean Hefty <mshefty@...ips.intel.com>
To:	Steve Wise <swise@...ngridcomputing.com>
CC:	David Miller <davem@...emloft.net>, rdreier@...co.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	general@...ts.openfabrics.org
Subject: Re: [ofa-general] Re: [PATCH RFC] RDMA/CMA: Allocate PS_TCP ports
 from the host TCP port space.

> The hack to use a socket and bind it to claim the port was just for 
> demostrating the idea.  The correct solution, IMO, is to enhance the 
> core low level 4-tuple allocation services to be more generic (eg: not 
> be tied to a struct sock).  Then the host tcp stack and the host rdma 
> stack can allocate TCP/iWARP ports/4tuples from this common exported 
> service and share the port space.  This allocation service could also be 
> used by other deep adapters like iscsi adapters if needed.

Since iWarp runs on top of TCP, the port space is really the same. 
FWIW, I agree that this proposal is the correct solution to support iWarp.

- Sean
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