From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: Re: [PATCH] xenbus_client: extend interface to suppurt multi-page ring Date: Tue, 27 Aug 2013 15:26:48 +0100 Message-ID: <521CB728.1090203@citrix.com> References: <1377296861-21464-1-git-send-email-wei.liu2@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1377296861-21464-1-git-send-email-wei.liu2@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Wei Liu Cc: boris.ostrovsky@oracle.com, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.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