From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com ([192.55.52.120]:19388 "EHLO mga04.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755745AbcASQgt (ORCPT ); Tue, 19 Jan 2016 11:36:49 -0500 Date: Tue, 19 Jan 2016 16:36:36 +0000 From: Keith Busch To: Christoph Hellwig Cc: Bjorn Helgaas , "Derrick, Jonathan" , LKML , "x86@kernel.org" , "linux-pci@vger.kernel.org" , Thomas Gleixner , Bjorn Helgaas , "Williams, Dan J" , "Veal, Bryan E" Subject: Re: [PATCHv8 0/5] Driver for new "VMD" device Message-ID: <20160119163635.GA4716@localhost.localdomain> References: <1452629890-17542-1-git-send-email-keith.busch@intel.com> <20160115181938.GA5296@localhost> <8D943B239464E04C9184454D8B3F5CFF0ABF18EC@ORSMSX101.amr.corp.intel.com> <20160115220631.GA14080@localhost> <20160119153822.GA3979@localhost.localdomain> <20160119160220.GA22059@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20160119160220.GA22059@infradead.org> Sender: linux-pci-owner@vger.kernel.org List-ID: On Tue, Jan 19, 2016 at 08:02:20AM -0800, Christoph Hellwig wrote: > As this seems to require special drivers to bind to it, and Intel > people refuse to even publicly tell what the code does I'd like > to NAK this code until we get an explanation and use cases for it. We haven't opened the h/w specification, but we've been pretty open with what it provides, how the code works, and our intended use case. The device provides additional pci domains for people who need more than the 256 busses a single domain provides. What information may I provide to satisfy your use case concerns? Are you wanting to know what devices we have in mind that require additional domains?