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From: Jason Gunthorpe <jgg@ziepe.ca>
To: Sinan Kaya <okaya@codeaurora.org>
Cc: linux-rdma@vger.kernel.org, timur@codeaurora.org,
	sulrich@codeaurora.org, linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Faisal Latif <faisal.latif@intel.com>,
	Doug Ledford <dledford@redhat.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 5/6] IB/nes: Eliminate duplicate barriers on weakly-ordered archs
Date: Tue, 20 Mar 2018 10:29:33 -0600	[thread overview]
Message-ID: <20180320162933.GO19744@ziepe.ca> (raw)
In-Reply-To: <77565861-7697-699f-c876-adf36db9ab5f@codeaurora.org>

On Tue, Mar 20, 2018 at 11:08:59AM -0500, Sinan Kaya wrote:

> > In this case, I strongly suspect nes really intended to say wmb()
> 
> Should I change barrier() to wmb() or leave it alone? I have no idea if 
> nes is actively being maintained or if it is EOL.

It is dead, and the HW doesn't work on 64 bit machines. Just ignore it
is my advice.

Jason

WARNING: multiple messages have this Message-ID (diff)
From: jgg@ziepe.ca (Jason Gunthorpe)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 5/6] IB/nes: Eliminate duplicate barriers on weakly-ordered archs
Date: Tue, 20 Mar 2018 10:29:33 -0600	[thread overview]
Message-ID: <20180320162933.GO19744@ziepe.ca> (raw)
In-Reply-To: <77565861-7697-699f-c876-adf36db9ab5f@codeaurora.org>

On Tue, Mar 20, 2018 at 11:08:59AM -0500, Sinan Kaya wrote:

> > In this case, I strongly suspect nes really intended to say wmb()
> 
> Should I change barrier() to wmb() or leave it alone? I have no idea if 
> nes is actively being maintained or if it is EOL.

It is dead, and the HW doesn't work on 64 bit machines. Just ignore it
is my advice.

Jason

  reply	other threads:[~2018-03-20 16:29 UTC|newest]

Thread overview: 94+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-20  2:47 [PATCH v4 0/6] ib: Eliminate duplicate barriers on weakly-ordered archs Sinan Kaya
2018-03-20  2:47 ` Sinan Kaya
2018-03-20  2:47 ` [PATCH v4 1/6] RDMA/bnxt_re: " Sinan Kaya
2018-03-20  2:47   ` Sinan Kaya
2018-03-20 14:48   ` Jason Gunthorpe
2018-03-20 14:48     ` Jason Gunthorpe
2018-03-20 15:00     ` Sinan Kaya
2018-03-20 15:00       ` Sinan Kaya
2018-03-20 15:08       ` Sinan Kaya
2018-03-20 15:08         ` Sinan Kaya
2018-03-20 15:23         ` Jason Gunthorpe
2018-03-20 15:23           ` Jason Gunthorpe
2018-03-20 15:20       ` Jason Gunthorpe
2018-03-20 15:20         ` Jason Gunthorpe
2018-03-20 15:30         ` Sinan Kaya
2018-03-20 15:30           ` Sinan Kaya
2018-03-20 16:02           ` Jason Gunthorpe
2018-03-20 16:02             ` Jason Gunthorpe
2018-03-20  2:47 ` [PATCH v4 2/6] IB/mlx4: " Sinan Kaya
2018-03-20  2:47   ` Sinan Kaya
2018-03-20 14:48   ` Jason Gunthorpe
2018-03-20 14:48     ` Jason Gunthorpe
2018-03-20  2:47 ` [PATCH v4 3/6] RDMA/i40iw: " Sinan Kaya
2018-03-20  2:47   ` Sinan Kaya
2018-03-20 14:56   ` Jason Gunthorpe
2018-03-20 14:56     ` Jason Gunthorpe
2018-03-21 13:38   ` Shiraz Saleem
2018-03-21 13:38     ` Shiraz Saleem
2018-03-21 20:02   ` Jason Gunthorpe
2018-03-21 20:02     ` Jason Gunthorpe
2018-03-21 21:01     ` Sinan Kaya
2018-03-21 21:01       ` Sinan Kaya
2018-03-20  2:47 ` [PATCH v4 4/6] infiniband: cxgb4: " Sinan Kaya
2018-03-20  2:47   ` Sinan Kaya
2018-03-20 14:51   ` Jason Gunthorpe
2018-03-20 14:51     ` Jason Gunthorpe
2018-03-20 15:10     ` Steve Wise
2018-03-20 15:10       ` Steve Wise
2018-03-20 15:38     ` Steve Wise
2018-03-20 15:38       ` Steve Wise
2018-03-22  6:44   ` kbuild test robot
2018-03-22  6:44     ` kbuild test robot
2018-03-22 12:24     ` okaya
2018-03-22 12:24       ` okaya at codeaurora.org
2018-03-22 12:48       ` okaya
2018-03-22 12:48         ` okaya at codeaurora.org
2018-03-22 14:33         ` Sinan Kaya
2018-03-22 14:33           ` Sinan Kaya
2018-03-22 14:40         ` Steve Wise
2018-03-22 14:40           ` Steve Wise
2018-03-22 14:52           ` Sinan Kaya
2018-03-22 14:52             ` Sinan Kaya
2018-03-22 16:28             ` Steve Wise
2018-03-22 16:28               ` Steve Wise
2018-03-22 19:44               ` Casey Leedom
2018-03-22 19:44                 ` Casey Leedom
2018-03-22 20:16                 ` Jason Gunthorpe
2018-03-22 20:16                   ` Jason Gunthorpe
2018-03-22 20:45                   ` Casey Leedom
2018-03-22 20:45                     ` Casey Leedom
2018-03-22 21:25                     ` Jason Gunthorpe
2018-03-22 21:25                       ` Jason Gunthorpe
2018-03-22 21:27                     ` Sinan Kaya
2018-03-22 21:27                       ` Sinan Kaya
2018-03-22 22:02                       ` Casey Leedom
2018-03-22 22:02                         ` Casey Leedom
     [not found]         ` <437ab002-b8db-24aa-583e-0e61d61aaa97@codeaurora.org>
2018-03-22 18:46           ` Jason Gunthorpe
2018-03-22 18:46             ` Jason Gunthorpe
2018-03-22 18:48         ` Jason Gunthorpe
2018-03-22 18:48           ` Jason Gunthorpe
2018-03-22 18:58           ` Sinan Kaya
2018-03-22 18:58             ` Sinan Kaya
2018-03-23  4:14   ` kbuild test robot
2018-03-23  4:14     ` kbuild test robot
2018-03-20  2:47 ` [PATCH v4 5/6] IB/nes: " Sinan Kaya
2018-03-20  2:47   ` Sinan Kaya
2018-03-20 14:54   ` Jason Gunthorpe
2018-03-20 14:54     ` Jason Gunthorpe
2018-03-20 15:23     ` Sinan Kaya
2018-03-20 15:23       ` Sinan Kaya
2018-03-20 16:01       ` Jason Gunthorpe
2018-03-20 16:01         ` Jason Gunthorpe
2018-03-20 16:08         ` Sinan Kaya
2018-03-20 16:08           ` Sinan Kaya
2018-03-20 16:29           ` Jason Gunthorpe [this message]
2018-03-20 16:29             ` Jason Gunthorpe
2018-03-20  2:47 ` [PATCH v4 6/6] RDMA/qedr: eliminate duplicate barriers on weakly-ordered archs #2 Sinan Kaya
2018-03-20  2:47   ` Sinan Kaya
2018-03-20  7:38   ` Kalderon, Michal
2018-03-20  7:38     ` Kalderon, Michal
2018-03-20 14:55   ` Jason Gunthorpe
2018-03-20 14:55     ` Jason Gunthorpe
2018-03-21 20:08 ` [PATCH v4 0/6] ib: Eliminate duplicate barriers on weakly-ordered archs Jason Gunthorpe
2018-03-21 20:08   ` Jason Gunthorpe

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