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Re: [Xen-devel] [PATCH] xenbus_client: extend interface to suppurt multi-page ring

To: Wei Liu <wei.liu2@xxxxxxxxxx>
From: David Vrabel <david.vrabel@xxxxxxxxxx>
Date: Tue, 27 Aug 2013 15:26:48 +0100
Cc: boris.ostrovsky@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxx
Delivery-date: Tue, 27 Aug 2013 14:27:03 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 23/08/13 23:27, Wei Liu wrote:
> Originally Xen PV drivers only use single-page ring to pass along
> information. This might limit the throughput between frontend and
> backend.

Why does the number of pages in the ring have to be a power of two?
Should we be able to handle any number of pages?

David

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