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Date: Thu, 17 Jan 2019 07:19:20 -0800
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 0/8] Virtio-over-PCIe on non-MIC
Message-ID: <20190117151920.GA20359@infradead.org>
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To: Arnd Bergmann <arnd@arndb.de>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>, sudeep.dutt@intel.com, ashutosh.dixit@intel.com, gregkh <gregkh@linuxfoundation.org>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, Kishon Vijay Abraham I <kishon@ti.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, linux-pci <linux-pci@vger.kernel.org>, linux-ntb@googlegroups.com, Jon Mason <jdmason@kudzu.us>, Dave Jiang <dave.jiang@intel.com>, Allen Hubbe <allenbh@gmail.com>
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On Thu, Jan 17, 2019 at 07:15:29AM -0800, Christoph Hellwig wrote:
> On Thu, Jan 17, 2019 at 01:39:27PM +0100, Arnd Bergmann wrote:
> > Can you describe how you expect a VOP device over NTB or
> > PCIe-endpoint would get created, configured and used?
> > Is there always one master side that is responsible for creating
> > virtio devices on it, with the slave side automatically attaching to
> > them, or can either side create virtio devices? Is there any limit on
> > the number of virtio devices or queues within a VOP device?
> 
> For VOP device over NTB your configure your device using configfs
> on one side, and for the other side it will just show up like any
> other PCIe device, because it is.

Sorry, I mean over the PCI-EP infratructure of course.  NTB actually
is rather hairy and complicated.