From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755364Ab1GAIR3 (ORCPT ); Fri, 1 Jul 2011 04:17:29 -0400 Received: from 173-166-109-252-newengland.hfc.comcastbusiness.net ([173.166.109.252]:52314 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754902Ab1GAIR1 (ORCPT ); Fri, 1 Jul 2011 04:17:27 -0400 Date: Fri, 1 Jul 2011 04:17:25 -0400 From: Christoph Hellwig To: KY Srinivasan Cc: Christoph Hellwig , "gregkh@suse.de" , "linux-kernel@vger.kernel.org" , "devel@linuxdriverproject.org" , "virtualization@lists.osdl.org" , Haiyang Zhang , "Abhishek Kane (Mindtree Consulting PVT LTD)" , Hank Janssen Subject: Re: [PATCH 24/40] Staging: hv: storvsc: On I/O get the correct IDE device Message-ID: <20110701081725.GC28322@infradead.org> References: <1309358301-8488-1-git-send-email-kys@microsoft.com> <1309358377-8537-1-git-send-email-kys@microsoft.com> <1309358377-8537-24-git-send-email-kys@microsoft.com> <20110630194055.GC22707@infradead.org> <6E21E5352C11B742B20C142EB499E0480816C2CF@TK5EX14MBXC126.redmond.corp.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6E21E5352C11B742B20C142EB499E0480816C2CF@TK5EX14MBXC126.redmond.corp.microsoft.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jun 30, 2011 at 09:15:54PM +0000, KY Srinivasan wrote: > That is what I did initially. Then looking at the way we were handling scsi devices > where each scsi controller configured for the guest results in an emulated HBA > (scsi host) in the guest and all the block devices under a given controller are > handled through this one host, I decided to mimic a similar structure - one > scsi host for all the block devices configured as an IDE device. > > I can go back to my earlier implementation with one host per disk. Was there any downside you noticed from using one host per emulated disk?