linux-kernel - Re: [PATCH v3 18/18] infiniband: cxgb4: Eliminate duplicate barriers on weakly-ordered archs

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Date:   Fri, 16 Mar 2018 23:08:16 -0500
From:   Timur Tabi <timur@...eaurora.org>
To:     Steve Wise <swise@...ngridcomputing.com>,
        'Jason Gunthorpe' <jgg@...pe.ca>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>
Cc:     'Sinan Kaya' <okaya@...eaurora.org>, netdev@...r.kernel.org,
        sulrich@...eaurora.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        'Steve Wise' <swise@...lsio.com>,
        'Doug Ledford' <dledford@...hat.com>,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        'Michael Werner' <werner@...lsio.com>,
        'Casey Leedom' <leedom@...lsio.com>
Subject: Re: [PATCH v3 18/18] infiniband: cxgb4: Eliminate duplicate barriers
 on weakly-ordered archs

On 3/16/18 6:04 PM, Steve Wise wrote:
> Anybody understand why the PPC implementation of writeX_relaxed() isn't
> relaxed?

You probably should ask that on the linuxppc-dev@...ts.ozlabs.org 
mailing list.

I've always wondered why PowerPC has non-standard I/O accessors.

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