linux-kernel - Re: [Patch v7 21/22] CIFS: SMBD: Upper layer performs SMB read via RDMA write through memory registration

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Date:   Mon, 24 Sep 2018 06:07:25 +0200
From:   Stefan Metzmacher <metze@...ba.org>
To:     Tom Talpey <tom@...pey.com>,
        Long Li <longli@...hange.microsoft.com>,
        Steve French <sfrench@...ba.org>, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
        Tom Talpey <ttalpey@...rosoft.com>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>
Subject: Re: [Patch v7 21/22] CIFS: SMBD: Upper layer performs SMB read via
 RDMA write through memory registration

> They're basically the same concept, it's a subtle difference.
> 
> FRMR = Fast Register Memory Region
> FRWR = Fast Register Work Request
> 
> The memory region is the mr itself, this is created early on.
> 
> The work request is built when actually binding the physical
> pages to the region, and setting the offset, length, etc, which
> is what's happening in the routine that I made the comment on.
> 
> So, for this discussion I chose to say FRWR. Sorry for any
> confusion!

Ah, thanks! Confusion resolved:-)

metze




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