Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752897AbaLAJ4r (ORCPT ); Mon, 1 Dec 2014 04:56:47 -0500 Received: from e06smtp16.uk.ibm.com ([195.75.94.112]:52310 "EHLO e06smtp16.uk.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752662AbaLAJ4p (ORCPT ); Mon, 1 Dec 2014 04:56:45 -0500 Date: Mon, 1 Dec 2014 10:56:33 +0100 From: Cornelia Huck To: "Michael S. Tsirkin" Cc: linux-kernel@vger.kernel.org, David Miller , rusty@au1.ibm.com, nab@linux-iscsi.org, pbonzini@redhat.com, thuth@linux.vnet.ibm.com, dahi@linux.vnet.ibm.com, Rusty Russell , Greg Kroah-Hartman , Alexei Starovoitov , Ashwin Chaugule , Anup Patel , Sakari Ailus , David Drysdale , stephen hemminger , Bjarke Istrup Pedersen , Andy Grover , virtualization@lists.linux-foundation.org, linux-api@vger.kernel.org Subject: Re: [PATCH v7 08/46] virtio: memory access APIs Message-ID: <20141201105633.63ddff73.cornelia.huck@de.ibm.com> In-Reply-To: <1417359787-10138-9-git-send-email-mst@redhat.com> References: <1417359787-10138-1-git-send-email-mst@redhat.com> <1417359787-10138-9-git-send-email-mst@redhat.com> Organization: IBM Deutschland Research & Development GmbH Vorsitzende des Aufsichtsrats: Martina Koederitz =?UTF-8?B?R2VzY2jDpGZ0c2bDvGhydW5nOg==?= Dirk Wittkopp Sitz der Gesellschaft: =?UTF-8?B?QsO2Ymxpbmdlbg==?= Registergericht: Amtsgericht Stuttgart, HRB 243294 X-Mailer: Claws Mail 3.8.0 (GTK+ 2.24.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14120109-0025-0000-0000-000002AA158B Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, 30 Nov 2014 17:09:50 +0200 "Michael S. Tsirkin" wrote: > virtio 1.0 makes all memory structures LE, so > we need APIs to conditionally do a byteswap on BE > architectures. > > To make it easier to check code statically, > add virtio specific types for multi-byte integers > in memory. > > Add low level wrappers that do a byteswap conditionally, these will be > useful e.g. for vhost. Add high level wrappers that > query device endian-ness and act accordingly. > > Signed-off-by: Michael S. Tsirkin > --- > include/linux/virtio_byteorder.h | 59 +++++++++++++++++++++++++++++++++++++++ > include/linux/virtio_config.h | 32 +++++++++++++++++++++ > include/uapi/linux/virtio_ring.h | 45 ++++++++++++++--------------- > include/uapi/linux/virtio_types.h | 46 ++++++++++++++++++++++++++++++ > include/uapi/linux/Kbuild | 1 + > 5 files changed, 161 insertions(+), 22 deletions(-) > create mode 100644 include/linux/virtio_byteorder.h > create mode 100644 include/uapi/linux/virtio_types.h Reviewed-by: Cornelia Huck -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/