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Date: Tue, 31 Mar 2015 14:13:35 +0100
From: Wei Liu <wei.liu2@citrix.com>
To: Juergen Gross <jgross@suse.com>
CC: Bob Liu <bob.liu@oracle.com>, <xen-devel@lists.xenproject.org>,
        <paul.durrant@citrix.com>, <david.vrabel@citrix.com>,
        <roger.pau@citrix.com>, <linux-kernel@vger.kernel.org>,
        <konrad.wilk@oracle.com>, Wei Liu <wei.liu2@citrix.com>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: [PATCH RESEND 1/2] xenbus_client: Extend interface to support
 multi-page ring
Message-ID: <20150331131335.GC14300@zion.uk.xensource.com>
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 <551A94DB.9020708@suse.com>
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On Tue, Mar 31, 2015 at 02:36:43PM +0200, Juergen Gross wrote:
> On 03/31/2015 02:15 PM, Bob Liu wrote:
> >From: Wei Liu <wei.liu2@citrix.com>
> >
> >Originally Xen PV drivers only use single-page ring to pass along
> >information. This might limit the throughput between frontend and
> >backend.
> >
> >The patch extends Xenbus driver to support multi-page ring, which in
> >general should improve throughput if ring is the bottleneck. Changes to
> >various frontend / backend to adapt to the new interface are also
> >included.
> >
> >Affected Xen drivers:
> >* blkfront/back
> >* netfront/back
> >* pcifront/back
> 
> What about pvscsi drivers?
> They are affected, too!
> 

When I wrote this patch pvscsi didn't exist upstream.

It would be fairly easy to change that driver too.

Wei.