From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161248AbWASSzG (ORCPT ); Thu, 19 Jan 2006 13:55:06 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161275AbWASSzF (ORCPT ); Thu, 19 Jan 2006 13:55:05 -0500 Received: from mx.pathscale.com ([64.160.42.68]:50922 "EHLO mx.pathscale.com") by vger.kernel.org with ESMTP id S1161258AbWASSzC (ORCPT ); Thu, 19 Jan 2006 13:55:02 -0500 Subject: Re: [openib-general] Re: RFC: ipath ioctls and their replacements From: "Bryan O'Sullivan" To: Sean Hefty Cc: "Eric W. Biederman" , Andrew Morton , Greg Kroah-Hartman , Roland Dreier , linux-kernel@vger.kernel.org, openib-general@openib.org, "David S. Miller" In-Reply-To: <43CFDF5F.5060409@ichips.intel.com> References: <1137631411.4757.218.camel@serpentine.pathscale.com> <1137688158.3693.29.camel@serpentine.pathscale.com> <43CFDF5F.5060409@ichips.intel.com> Content-Type: text/plain Organization: PathScale, Inc. Date: Thu, 19 Jan 2006 10:55:01 -0800 Message-Id: <1137696901.3693.66.camel@serpentine.pathscale.com> Mime-Version: 1.0 X-Mailer: Evolution 2.2.3 (2.2.3-2.fc4) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2006-01-19 at 10:50 -0800, Sean Hefty wrote: > I'm not familiar with the driver, but would the lower level verbs interfaces > work for this? Could you just post whatever datagrams that you want directly to > your management QPs? Our lowest-level driver works in the absence of any IB support being compiled into the kernel, so in that situation, there are no QPs or any other management infrastructure present at all. All of that stuff lives in a higher layer, in which situation the cut-down subnet management agent doesn't get used, and something like OpenSM is more appropriate.