linux-kernel - Re: [ofa-general] [PATCH v2] iw_cxgb3: Support "iwarp-only" interfaces to avoid 4-tuple conflicts.

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Message-ID: <46E99586.90905@ichips.intel.com>
Date:	Thu, 13 Sep 2007 12:54:46 -0700
From:	Sean Hefty <mshefty@...ips.intel.com>
To:	Steve Wise <swise@...ngridcomputing.com>
CC:	rdreier@...co.com, sean.hefty@...el.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, general@...ts.openfabrics.org
Subject: Re: [ofa-general] [PATCH v2] iw_cxgb3: Support "iwarp-only" interfaces
 to avoid 4-tuple conflicts.

> The iWARP driver must translate all listens on address 0.0.0.0 to the
> set of rdma-only ip addresses for the device in question.  This prevents
> incoming connect requests to the TCP ipaddresses from going up the
> rdma stack.

I've only given this a high level review at this point, and while the 
patch looks okay on first pass, is there a way to move some of this 
functionality to either the rdma_cm or iw_cm?  I don't like the idea of 
every iwarp driver having to implement address/listen list maintenance. 
  I may have some ideas after re-examining it.

> Implementation Details:

There are a couple of areas that I made a note to look at in more detail 
(because I didn't understand everything that was happening), but I did 
have one minor nit - most uses of list_del_init can just be list_del.

- Sean
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