linux-kernel - Re: [PATCH 13/16] switchtec_ntb: implement doorbell registers

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Message-ID: <20170705194216.GB25063@bhelgaas-glaptop.roam.corp.google.com>
Date:   Wed, 5 Jul 2017 14:42:16 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Logan Gunthorpe <logang@...tatee.com>
Cc:     linux-ntb@...glegroups.com, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, Jon Mason <jdmason@...zu.us>,
        Dave Jiang <dave.jiang@...el.com>,
        Allen Hubbe <Allen.Hubbe@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kurt Schwemmer <kurt.schwemmer@...rosemi.com>,
        Stephen Bates <sbates@...thlin.com>,
        Serge Semin <fancer.lancer@...il.com>
Subject: Re: [PATCH 13/16] switchtec_ntb: implement doorbell registers

On Wed, Jun 28, 2017 at 09:26:45PM -0600, Logan Gunthorpe wrote:
> Pretty straightforward implementation of doorbell registers.
> The shift and mask were setup in an earlier patch and this just hooks
> up the approprirate portion of the idb register as the local doorbells
> and the opposite portion of odb as the peer doorbells. The db mask is
> protected by a spinlock to avoid concurrent read-modify-write accesses.

s/approprirate/appropriate/