From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D62DCC5DF60 for ; Thu, 7 Nov 2019 15:35:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A9305214D8 for ; Thu, 7 Nov 2019 15:35:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="iytoKoHy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389325AbfKGPfK (ORCPT ); Thu, 7 Nov 2019 10:35:10 -0500 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:47205 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2389308AbfKGPfK (ORCPT ); Thu, 7 Nov 2019 10:35:10 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573140909; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BzEyez2H23edMWUzeroDzzDUe6EbJTfa2zTwff9g92s=; b=iytoKoHykz8YhCd5O48nU5ObA9o3jLo8P15TM0U2VcVQPg/x6e7Hr5Qa3j4gO0uSqttAOY OgwLfTp0x5ODyLzDUyK9cBN58lQJI3x2Gl4CSaSsetY0I49gmlFVL4x9U2Ft2tcqirL7Kp vnva7uDFSHOsVxHnhV4DEiFhMMeqIfo= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-423-TZdOIwyWM0aw-ZFtUujj9Q-1; Thu, 07 Nov 2019 10:35:05 -0500 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 000FF477; Thu, 7 Nov 2019 15:35:00 +0000 (UTC) Received: from gondolin (ovpn-117-222.ams2.redhat.com [10.36.117.222]) by smtp.corp.redhat.com (Postfix) with ESMTP id CCE1260BEC; Thu, 7 Nov 2019 15:34:51 +0000 (UTC) Date: Thu, 7 Nov 2019 16:34:48 +0100 From: Cornelia Huck To: Jason Wang Cc: kvm@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, kwankhede@nvidia.com, alex.williamson@redhat.com, mst@redhat.com, tiwei.bie@intel.com, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, maxime.coquelin@redhat.com, cunming.liang@intel.com, zhihong.wang@intel.com, rob.miller@broadcom.com, xiao.w.wang@intel.com, haotian.wang@sifive.com, zhenyuw@linux.intel.com, zhi.a.wang@intel.com, jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com, airlied@linux.ie, daniel@ffwll.ch, farman@linux.ibm.com, pasic@linux.ibm.com, sebott@linux.ibm.com, oberpar@linux.ibm.com, heiko.carstens@de.ibm.com, gor@linux.ibm.com, borntraeger@de.ibm.com, akrowiak@linux.ibm.com, freude@linux.ibm.com, lingshan.zhu@intel.com, eperezma@redhat.com, lulu@redhat.com, parav@mellanox.com, christophe.de.dinechin@gmail.com, kevin.tian@intel.com, stefanha@redhat.com, rdunlap@infradead.org Subject: Re: [PATCH V11 6/6] docs: sample driver to demonstrate how to implement virtio-mdev framework Message-ID: <20191107163448.4d20b75b.cohuck@redhat.com> In-Reply-To: <20191107151109.23261-7-jasowang@redhat.com> References: <20191107151109.23261-1-jasowang@redhat.com> <20191107151109.23261-7-jasowang@redhat.com> Organization: Red Hat GmbH MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-MC-Unique: TZdOIwyWM0aw-ZFtUujj9Q-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, 7 Nov 2019 23:11:09 +0800 Jason Wang wrote: > This sample driver creates mdev device that simulate virtio net device > over virtio mdev transport. The device is implemented through vringh > and workqueue. A device specific dma ops is to make sure HVA is used > directly as the IOVA. This should be sufficient for kernel virtio > driver to work. >=20 > Only 'virtio' type is supported right now. I plan to add 'vhost' type > on top which requires some virtual IOMMU implemented in this sample > driver. >=20 > Signed-off-by: Jason Wang > --- > MAINTAINERS | 1 + > samples/Kconfig | 10 + > samples/vfio-mdev/Makefile | 1 + > samples/vfio-mdev/mvnet_loopback.c | 687 +++++++++++++++++++++++++++++ > 4 files changed, 699 insertions(+) > create mode 100644 samples/vfio-mdev/mvnet_loopback.c Acked-by: Cornelia Huck