netdev - Re: [PATCH 3/3] bnx2i: Add bnx2i iSCSI driver.

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Date:	Tue, 27 May 2008 17:48:49 -0700
From:	"Michael Chan" <mchan@...adcom.com>
To:	"David Miller" <davem@...emloft.net>
cc:	rdreier@...co.com, anilgv@...adcom.com, michaelc@...wisc.edu,
	netdev <netdev@...r.kernel.org>, linux-scsi@...r.kernel.org,
	open-iscsi@...glegroups.com
Subject: Re: [PATCH 3/3] bnx2i: Add bnx2i iSCSI driver.

On Tue, 2008-05-27 at 12:52 -0700, David Miller wrote:
> From: Roland Dreier <rdreier@...co.com>
> Date: Tue, 27 May 2008 07:38:19 -0700
> 
> > So you are creating sockets just to reserve TCP ports to avoid host
> > stack clashes with your offload engine?  Wasn't this approach strongly
> > rejected (in the context of iWARP) in the past?
> 
> Yes, it was, and likewise similar hacks in other areas will
> be rejected similarly.
> 

If we change the implementation to use a separate IP address and
separate MAC address for iSCSI, will it be acceptable?  The iSCSI IP/MAC
addresses will be unknown to the Linux TCP stack and so no sharing of
the 4-tuple space will be needed.

The patches will be very similar, except that all inet calls and
notifiers will be removed.



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