linux-kernel - Re: [PATCH v6 02/26] IB/Verbs: Implement raw management helpers

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Date:	Fri, 24 Apr 2015 10:29:14 -0600
From:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
To:	Liran Liss <liranl@...lanox.com>
Cc:	Michael Wang <yun.wang@...fitbricks.com>,
	Roland Dreier <roland@...nel.org>,
	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal@....mellanox.co.il>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Steve Wise <swise@...ngridcomputing.com>,
	Tom Talpey <tom@...pey.com>,
	Doug Ledford <dledford@...hat.com>,
	Ira Weiny <ira.weiny@...el.com>,
	Tom Tucker <tom@...ngridcomputing.com>,
	Hoang-Nam Nguyen <hnguyen@...ibm.com>,
	"raisch@...ibm.com" <raisch@...ibm.com>,
	Mike Marciniszyn <infinipath@...el.com>,
	Eli Cohen <eli@...lanox.com>,
	Faisal Latif <faisal.latif@...el.com>,
	Jack Morgenstein <jackm@....mellanox.co.il>,
	Or Gerlitz <ogerlitz@...lanox.com>,
	Haggai Eran <haggaie@...lanox.com>
Subject: Re: [PATCH v6 02/26] IB/Verbs: Implement raw management helpers

On Fri, Apr 24, 2015 at 03:15:54PM +0000, Liran Liss wrote:
> > From: linux-rdma-owner@...r.kernel.org [mailto:linux-rdma-

> > +static inline int rdma_tech_iboe(struct ib_device *device, u8 port_num)
> > +{
> > +	return device->query_transport(device, port_num)
> > +			== RDMA_TRANSPORT_IBOE;
> 
> Remove RDMA_TRANSPORT_IBOE.
> In the current code, the test should be: (IB transport && Ethernet link layer).

No, if this rmda_tech stuff is to reflect the specification the port
implements, then RoCEE is a valid specification (IBA Annex A16), as it
RoCEEv2 (A17).

This patch set is trying to drop then link layer concept entirely.

Jason
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