From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alok Kataria Subject: Re: [PATCH] SCSI driver for VMware's virtual HBA. Date: Tue, 01 Sep 2009 09:47:29 -0700 Message-ID: <1251823649.16169.123.camel@ank32.eng.vmware.com> References: <1251415060.16297.58.camel@ank32.eng.vmware.com> <1251739735.16169.20.camel@ank32.eng.vmware.com> <1251741624.18828.83.camel@mulgrave.site> <1251755593.16169.51.camel@ank32.eng.vmware.com> <1251815012.3864.55.camel@mulgrave.site> <35f686220909010908k24f0164nc09b1158b6841ff3@mail.gmail.com> <20090901161306.GN22870@parisc-linux.org> <4A9D49CE.6080600@panasas.com> Reply-To: akataria@vmware.com Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from smtp-outbound-1.vmware.com ([65.115.85.69]:50908 "EHLO smtp-outbound-1.vmware.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751768AbZIAQr1 (ORCPT ); Tue, 1 Sep 2009 12:47:27 -0400 In-Reply-To: <4A9D49CE.6080600@panasas.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Boaz Harrosh Cc: Matthew Wilcox , Alok Kataria , James Bottomley , Robert Love , Randy Dunlap , Mike Christie , "linux-scsi@vger.kernel.org" , LKML , Andrew Morton , Dmitry Torokhov , Rolf Eike Beer , Maxime Austruy , Bhavesh Davda On Tue, 2009-09-01 at 09:20 -0700, Boaz Harrosh wrote: > On 09/01/2009 07:13 PM, Matthew Wilcox wrote: > > > > Umm, we do share code between SCSI drivers. We have the ULDs (sg, sd, > > sr, etc), we have the midlayer, and we have the transport classes (spi, > > iscsi, fc, etc). > > > > This makes a tons of sense. a scsi_transport_paravirt can have lots of common > nubs. I bet administrators would love such common management facility. I don't see how it will help a user. VMware exports a PCI device, and this device will be available only when running under a VMware hypervisor. If a particular device is available the OS will use the corresponding driver. Please note these drivers will be used by the guest operating system, which is running virtualized. I don't get what kind of control the administrator has on this ? can you please elaborate. Alok > > Boaz