From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH 24/40] Staging: hv: storvsc: On I/O get the correct IDE device Date: Fri, 1 Jul 2011 04:17:25 -0400 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-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <6E21E5352C11B742B20C142EB499E0480816C2CF@TK5EX14MBXC126.redmond.corp.microsoft.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: devel-bounces@linuxdriverproject.org Errors-To: devel-bounces@linuxdriverproject.org To: KY Srinivasan Cc: "Abhishek Kane (Mindtree Consulting PVT LTD)" , Haiyang Zhang , "gregkh@suse.de" , "linux-kernel@vger.kernel.org" , Christoph Hellwig , "virtualization@lists.osdl.org" , "devel@linuxdriverproject.org" List-Id: virtualization@lists.linuxfoundation.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?