From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753155AbeFDMzh (ORCPT ); Mon, 4 Jun 2018 08:55:37 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:35332 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752946AbeFDMzg (ORCPT ); Mon, 4 Jun 2018 08:55:36 -0400 Date: Mon, 4 Jun 2018 05:55:30 -0700 From: Christoph Hellwig To: "Michael S. Tsirkin" Cc: Benjamin Herrenschmidt , Anshuman Khandual , virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, aik@ozlabs.ru, robh@kernel.org, joe@perches.com, elfring@users.sourceforge.net, david@gibson.dropbear.id.au, jasowang@redhat.com, mpe@ellerman.id.au, hch@infradead.org Subject: Re: [RFC V2] virtio: Add platform specific DMA API translation for virito devices Message-ID: <20180604125530.GA16378@infradead.org> References: <20180522063317.20956-1-khandual@linux.vnet.ibm.com> <20180523213703-mutt-send-email-mst@kernel.org> <20180604153558-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180604153558-mutt-send-email-mst@kernel.org> User-Agent: Mutt/1.9.2 (2017-12-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 04, 2018 at 03:43:09PM +0300, Michael S. Tsirkin wrote: > Another is that given the basic functionality is in there, optimizations > can possibly wait until per-device quirks in DMA API are supported. We have had per-device dma_ops for quite a while.