Date: Mon, 13 Apr 2015 14:33:50 -0600
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
To: Michael Wang <yun.wang@profitbricks.com>
Cc: Roland Dreier <roland@kernel.org>, Sean Hefty <sean.hefty@intel.com>,
        Hal Rosenstock <hal.rosenstock@gmail.com>, linux-rdma@vger.kernel.org,
        linux-kernel@vger.kernel.org, Tom Tucker <tom@opengridcomputing.com>,
        Steve Wise <swise@opengridcomputing.com>,
        Hoang-Nam Nguyen <hnguyen@de.ibm.com>,
        Christoph Raisch <raisch@de.ibm.com>,
        Mike Marciniszyn <infinipath@intel.com>, Eli Cohen <eli@mellanox.com>,
        Faisal Latif <faisal.latif@intel.com>,
        Jack Morgenstein <jackm@dev.mellanox.co.il>,
        Or Gerlitz <ogerlitz@mellanox.com>, Haggai Eran <haggaie@mellanox.com>,
        Ira Weiny <ira.weiny@intel.com>, Tom Talpey <tom@talpey.com>,
        Doug Ledford <dledford@redhat.com>
Subject: Re: [PATCH v3 27/28] IB/Verbs: Clean up rdma_ib_or_iboe()
Message-ID: <20150413203350.GA20611@obsidianresearch.com>
References: <552BB470.4090407@profitbricks.com>
 <552BB85D.7010400@profitbricks.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <552BB85D.7010400@profitbricks.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1237
Lines: 31

On Mon, Apr 13, 2015 at 02:36:45PM +0200, Michael Wang wrote:
> We have finished introducing the cap_XX(), and raw helper rdma_ib_or_iboe()
> is no longer necessary, thus clean it up.

So, the net result is not looking too bad, but I'm confused about the
structure of this series.

Why introduce query_transport early on?

Why is the patch series going through this progression most lines?

-       if (rdma_port_get_link_layer(device, port_num) == IB_LINK_LAYER_INFINIBAND) {
+       if (rdma_tech_ib(device, port_num)) {
+       if (cap_ib_smi(device, port_num)) {

This would be a lot shorter and simpler to look at if the cap's were
introduced first, then their implementation finalized.

I thought we agreed Doug's bitmask plan should be the final
destination for this series, so this progress seems even stranger?

I would be very happy to see a patch that adds cap_ib_smi to the
current tree and states 'This patch is tested to have no change on the
binary compilation results'

Jason
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/