From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47596) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZZYpF-00076j-OC for qemu-devel@nongnu.org; Wed, 09 Sep 2015 02:25:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZZYpB-0001W2-V9 for qemu-devel@nongnu.org; Wed, 09 Sep 2015 02:25:45 -0400 References: <1441761736-32030-1-git-send-email-david@gibson.dropbear.id.au> From: Thomas Huth Message-ID: <55EFD0DE.1050001@redhat.com> Date: Wed, 9 Sep 2015 08:25:34 +0200 MIME-Version: 1.0 In-Reply-To: <1441761736-32030-1-git-send-email-david@gibson.dropbear.id.au> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] spapr: Reduce advertised max LUNs for spapr_vscsi List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: David Gibson , pbonzini@redhat.com, benh@kernel.crashing.org Cc: lvivier@redhat.com, qemu-ppc@nongnu.org, qemu-devel@nongnu.org On 09/09/15 03:22, David Gibson wrote: > The implementation of the PAPR paravirtual SCSI adapter currently > allows up to 32 LUNs (max_lun == 31). However the adapter isn't really > designed to support lots of devices - the PowerVM implementation only > ever puts one disk per vSCSI controller. Do you know how many LUNs are advertised by PowerVM? > More specifically, the Linux guest side vscsi driver (the only one we > really care about) is hardcoded to allow a maximum of 8 LUNs. So what about changing the vscsi driver in Linux instead to support more LUNs? Thomas