linux-kernel - Re: [PATCH 1/2] IB/Verbs: Use helpers to refine the checking on transport and link layer

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Message-ID: <551299AD.7070702@profitbricks.com>
Date:	Wed, 25 Mar 2015 12:19:09 +0100
From:	Michael Wang <yun.wang@...fitbricks.com>
To:	Roland Dreier <roland@...nel.org>,
	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>,
	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-nfs@...r.kernel.org, netdev@...r.kernel.org,
	Ira Weiny <ira.weiny@...el.com>
CC:	"J. Bruce Fields" <bfields@...ldses.org>,
	Trond Myklebust <trond.myklebust@...marydata.com>,
	"David S. Miller" <davem@...emloft.net>,
	Moni Shoua <monis@...lanox.com>,
	PJ Waskiewicz <pj.waskiewicz@...idfire.com>,
	Steve Wise <swise@...ngridcomputing.com>,
	Tatyana Nikolova <Tatyana.E.Nikolova@...el.com>,
	Yan Burman <yanb@...lanox.com>,
	Jack Morgenstein <jackm@....mellanox.co.il>,
	Yann Droneaud <ydroneaud@...eya.com>,
	Bart Van Assche <bvanassche@....org>,
	Colin Ian King <colin.king@...onical.com>,
	Mel Gorman <mgorman@...e.de>, Majd Dibbiny <majd@...lanox.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Matan Barak <matanb@...lanox.com>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Eugenia Emantayev <eugenia@...lanox.co.il>,
	Doug Ledford <dledford@...hat.com>,
	Alex Estrin <alex.estrin@...el.com>,
	Erez Shitrit <erezsh@...lanox.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Tom Gundersen <teg@...m.no>,
	Sagi Grimberg <sagig@...lanox.com>,
	Haggai Eran <haggaie@...lanox.com>,
	Shachar Raindel <raindel@...lanox.com>,
	Mike Marciniszyn <mike.marciniszyn@...el.com>,
	Tom Tucker <tom@....us>, Chuck Lever <chuck.lever@...cle.com>
Subject: Re: [PATCH 1/2] IB/Verbs: Use helpers to refine the checking on transport
 and link layer

This should be [PATCH 0/2], and my sincerely apologize on the duplicated
mail, the connection is really terrible...

Regards,
Michael Wang

On 03/25/2015 12:12 PM, Michael Wang wrote:
>
> There are too many lengthy code to check the transport type of IB device,
> or the link layer type of it's port, this patch set try to use some 
> helper to
> refine and save us some code.
>
> TODO:
>     Currently we inferred from the transport type and link layer type 
> to identify
>     the way of management, it will be better if we can directly get 
> the indicator
>     from vendor.
>
>     Sean proposed one suggestion:
>  https://www.mail-archive.com/linux-rdma@vger.kernel.org/msg23339.html
>
>     It may need a big work to adapt current implementation to utilize
>     these flags elegantly.
>
>     Also the performance concern on query_port() need to be addressed, 
> may be
>     some new callback like query_mgmt() could works.
>
> Michael Wang (2):
>     [PATCH 1/2] IB/Verbs: Use helpers to check transport and link layer
>     [PATCH 2/2] IB/Verbs: Use helpers to check IBoE technology
>
> ---
>  drivers/infiniband/core/agent.c           |    2 -
>  drivers/infiniband/core/cm.c              |    2 -
>  drivers/infiniband/core/cma.c             |   33 
> ++++++++++++------------------
>  drivers/infiniband/core/mad.c             |    6 ++---
>  drivers/infiniband/core/multicast.c       |   11 +++-------
>  drivers/infiniband/core/sa_query.c        |   14 ++++++------
>  drivers/infiniband/core/ucm.c             |    3 --
>  drivers/infiniband/core/user_mad.c        |    2 -
>  drivers/infiniband/core/verbs.c           |    5 +---
>  drivers/infiniband/hw/mlx4/ah.c           |    2 -
>  drivers/infiniband/hw/mlx4/cq.c           |    4 ---
>  drivers/infiniband/hw/mlx4/mad.c          |   14 +++---------
>  drivers/infiniband/hw/mlx4/main.c         |    8 ++-----
>  drivers/infiniband/hw/mlx4/mlx4_ib.h      |    2 -
>  drivers/infiniband/hw/mlx4/qp.c           |   21 ++++++-------------
>  drivers/infiniband/hw/mlx4/sysfs.c        |    6 +----
>  drivers/infiniband/ulp/ipoib/ipoib_main.c |    6 ++---
>  include/rdma/ib_verbs.h                   |   30 
> +++++++++++++++++++++++++++
>  net/sunrpc/xprtrdma/svc_rdma_recvfrom.c   |    3 --
>  19 files changed, 87 insertions(+), 87 deletions(-)

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