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=-8.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 54551C5DF63 for ; Wed, 6 Nov 2019 13:12:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 22E30217F4 for ; Wed, 6 Nov 2019 13:12:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="K490SRJW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730195AbfKFNMQ (ORCPT ); Wed, 6 Nov 2019 08:12:16 -0500 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:57166 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726781AbfKFNMQ (ORCPT ); Wed, 6 Nov 2019 08:12:16 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573045935; 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=XdTny3tr4ABNNp/+zCwTPKTknb73JdloNxApkDn3UmA=; b=K490SRJWkOW5mndEW2546x8Wl0YDTcA0kSmp5RT6qlTzEnQwJ/MU/9+6kAPrfYnrxM54Lr g+qmRwvOW89oX3kwmaJ5+x8D7mNI5RUYqg0C7+F2S8yQMsWZALC/EWxcpU+R+rFXybtwR7 kwweT1O5J+jex77DCFuWG9+GlgKWFJM= 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-325-zNgOzN6XN_Wyyhw7iMVyjw-1; Wed, 06 Nov 2019 08:12:12 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0B0E68017E0; Wed, 6 Nov 2019 13:12:08 +0000 (UTC) Received: from [10.72.12.193] (ovpn-12-193.pek2.redhat.com [10.72.12.193]) by smtp.corp.redhat.com (Postfix) with ESMTP id 452135D9CD; Wed, 6 Nov 2019 13:11:21 +0000 (UTC) Subject: Re: [PATCH V9 5/6] virtio: introduce a mdev based transport To: Cornelia Huck 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, idos@mellanox.com, eperezma@redhat.com, lulu@redhat.com, parav@mellanox.com, christophe.de.dinechin@gmail.com, kevin.tian@intel.com, stefanha@redhat.com References: <20191106070548.18980-1-jasowang@redhat.com> <20191106070548.18980-6-jasowang@redhat.com> <20191106120047.5bcf49c3.cohuck@redhat.com> From: Jason Wang Message-ID: <46df7afa-7543-ce19-7ede-9041907e2730@redhat.com> Date: Wed, 6 Nov 2019 21:11:15 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20191106120047.5bcf49c3.cohuck@redhat.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: zNgOzN6XN_Wyyhw7iMVyjw-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2019/11/6 =E4=B8=8B=E5=8D=887:00, Cornelia Huck wrote: > On Wed, 6 Nov 2019 15:05:47 +0800 > Jason Wang wrote: > >> This patch introduces a new mdev transport for virtio. This is used to >> use kernel virtio driver to drive the mediated device that is capable >> of populating virtqueue directly. >> >> A new virtio-mdev driver will be registered to the mdev bus, when a >> new virtio-mdev device is probed, it will register the device with >> mdev based config ops. This means it is a software transport between >> mdev driver and mdev device. The transport was implemented through >> device specific ops which is a part of mdev_parent_ops now. >> >> Signed-off-by: Jason Wang >> --- >> drivers/virtio/Kconfig | 13 ++ >> drivers/virtio/Makefile | 1 + >> drivers/virtio/virtio_mdev.c | 406 +++++++++++++++++++++++++++++++++++ >> 3 files changed, 420 insertions(+) >> create mode 100644 drivers/virtio/virtio_mdev.c >> >> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig >> index 078615cf2afc..558ac607d107 100644 >> --- a/drivers/virtio/Kconfig >> +++ b/drivers/virtio/Kconfig >> @@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY >> =20 >> =09 If unsure, say Y. >> =20 >> +config VIRTIO_MDEV >> +=09tristate "MDEV driver for virtio devices" >> +=09depends on VFIO_MDEV && VIRTIO >> +=09default n >> +=09help >> +=09 This driver provides support for virtio based paravirtual >> +=09 device driver over MDEV bus. This requires your environemnt >> +=09 has appropriate virtio mdev device implementation which may >> +=09 operate on the physical device that the datapath of virtio >> +=09 could be offloaded to hardware. > That sentence is a bit confusing to me... what about > > "For this to be useful, you need an appropriate virtio mdev device > implementation that operates on a physical device to allow the datapath > of virtio to be offloaded to hardware." > > ? > >> + >> +=09 If unsure, say M > Building this as a module should not hurt (but please add a trailing > '.' here :) > >> + >> config VIRTIO_PMEM >> =09tristate "Support for virtio pmem driver" >> =09depends on VIRTIO > With the changes above, > > Reviewed-by: Cornelia Huck > Will post V10. Thanks From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Wang Subject: Re: [PATCH V9 5/6] virtio: introduce a mdev based transport Date: Wed, 6 Nov 2019 21:11:15 +0800 Message-ID: <46df7afa-7543-ce19-7ede-9041907e2730@redhat.com> References: <20191106070548.18980-1-jasowang@redhat.com> <20191106070548.18980-6-jasowang@redhat.com> <20191106120047.5bcf49c3.cohuck@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20191106120047.5bcf49c3.cohuck@redhat.com> Content-Language: en-US Sender: netdev-owner@vger.kernel.org To: Cornelia Huck 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.c List-Id: dri-devel@lists.freedesktop.org On 2019/11/6 =E4=B8=8B=E5=8D=887:00, Cornelia Huck wrote: > On Wed, 6 Nov 2019 15:05:47 +0800 > Jason Wang wrote: > >> This patch introduces a new mdev transport for virtio. This is used to >> use kernel virtio driver to drive the mediated device that is capable >> of populating virtqueue directly. >> >> A new virtio-mdev driver will be registered to the mdev bus, when a >> new virtio-mdev device is probed, it will register the device with >> mdev based config ops. This means it is a software transport between >> mdev driver and mdev device. The transport was implemented through >> device specific ops which is a part of mdev_parent_ops now. >> >> Signed-off-by: Jason Wang >> --- >> drivers/virtio/Kconfig | 13 ++ >> drivers/virtio/Makefile | 1 + >> drivers/virtio/virtio_mdev.c | 406 +++++++++++++++++++++++++++++++++++ >> 3 files changed, 420 insertions(+) >> create mode 100644 drivers/virtio/virtio_mdev.c >> >> diff --git a/drivers/virtio/Kconfig b/drivers/virtio/Kconfig >> index 078615cf2afc..558ac607d107 100644 >> --- a/drivers/virtio/Kconfig >> +++ b/drivers/virtio/Kconfig >> @@ -43,6 +43,19 @@ config VIRTIO_PCI_LEGACY >> =20 >> =09 If unsure, say Y. >> =20 >> +config VIRTIO_MDEV >> +=09tristate "MDEV driver for virtio devices" >> +=09depends on VFIO_MDEV && VIRTIO >> +=09default n >> +=09help >> +=09 This driver provides support for virtio based paravirtual >> +=09 device driver over MDEV bus. This requires your environemnt >> +=09 has appropriate virtio mdev device implementation which may >> +=09 operate on the physical device that the datapath of virtio >> +=09 could be offloaded to hardware. > That sentence is a bit confusing to me... what about > > "For this to be useful, you need an appropriate virtio mdev device > implementation that operates on a physical device to allow the datapath > of virtio to be offloaded to hardware." > > ? > >> + >> +=09 If unsure, say M > Building this as a module should not hurt (but please add a trailing > '.' here :) > >> + >> config VIRTIO_PMEM >> =09tristate "Support for virtio pmem driver" >> =09depends on VIRTIO > With the changes above, > > Reviewed-by: Cornelia Huck > Will post V10. Thanks 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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham 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 5D47CC5DF64 for ; Wed, 6 Nov 2019 13:12:19 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 31FD52187F for ; Wed, 6 Nov 2019 13:12:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 31FD52187F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 312DB6ED31; Wed, 6 Nov 2019 13:12:18 +0000 (UTC) Received: from us-smtp-delivery-1.mimecast.com (us-smtp-1.mimecast.com [207.211.31.81]) by gabe.freedesktop.org (Postfix) with ESMTPS id CF0EF6ED32 for ; Wed, 6 Nov 2019 13:12:16 +0000 (UTC) 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-325-zNgOzN6XN_Wyyhw7iMVyjw-1; Wed, 06 Nov 2019 08:12:12 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0B0E68017E0; Wed, 6 Nov 2019 13:12:08 +0000 (UTC) Received: from [10.72.12.193] (ovpn-12-193.pek2.redhat.com [10.72.12.193]) by smtp.corp.redhat.com (Postfix) with ESMTP id 452135D9CD; Wed, 6 Nov 2019 13:11:21 +0000 (UTC) Subject: Re: [PATCH V9 5/6] virtio: introduce a mdev based transport To: Cornelia Huck References: <20191106070548.18980-1-jasowang@redhat.com> <20191106070548.18980-6-jasowang@redhat.com> <20191106120047.5bcf49c3.cohuck@redhat.com> From: Jason Wang Message-ID: <46df7afa-7543-ce19-7ede-9041907e2730@redhat.com> Date: Wed, 6 Nov 2019 21:11:15 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20191106120047.5bcf49c3.cohuck@redhat.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: zNgOzN6XN_Wyyhw7iMVyjw-1 X-Mimecast-Spam-Score: 0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573045935; 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=XdTny3tr4ABNNp/+zCwTPKTknb73JdloNxApkDn3UmA=; b=K490SRJWkOW5mndEW2546x8Wl0YDTcA0kSmp5RT6qlTzEnQwJ/MU/9+6kAPrfYnrxM54Lr g+qmRwvOW89oX3kwmaJ5+x8D7mNI5RUYqg0C7+F2S8yQMsWZALC/EWxcpU+R+rFXybtwR7 kwweT1O5J+jex77DCFuWG9+GlgKWFJM= X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stefanha@redhat.com, christophe.de.dinechin@gmail.com, kvm@vger.kernel.org, mst@redhat.com, airlied@linux.ie, heiko.carstens@de.ibm.com, kevin.tian@intel.com, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, kwankhede@nvidia.com, rob.miller@broadcom.com, linux-s390@vger.kernel.org, sebott@linux.ibm.com, lulu@redhat.com, eperezma@redhat.com, pasic@linux.ibm.com, borntraeger@de.ibm.com, haotian.wang@sifive.com, cunming.liang@intel.com, zhi.a.wang@intel.com, farman@linux.ibm.com, idos@mellanox.com, gor@linux.ibm.com, intel-gfx@lists.freedesktop.org, alex.williamson@redhat.com, xiao.w.wang@intel.com, freude@linux.ibm.com, parav@mellanox.com, zhihong.wang@intel.com, rodrigo.vivi@intel.com, intel-gvt-dev@lists.freedesktop.org, akrowiak@linux.ibm.com, oberpar@linux.ibm.com, tiwei.bie@intel.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, maxime.coquelin@redhat.com, lingshan.zhu@intel.com Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Message-ID: <20191106131115.oIGYxyWMUvkDbLw9QKDLlon4f8C0_O0Ny91zT8zMJBI@z> Ck9uIDIwMTkvMTEvNiDkuIvljYg3OjAwLCBDb3JuZWxpYSBIdWNrIHdyb3RlOgo+IE9uIFdlZCwg IDYgTm92IDIwMTkgMTU6MDU6NDcgKzA4MDAKPiBKYXNvbiBXYW5nIDxqYXNvd2FuZ0ByZWRoYXQu Y29tPiB3cm90ZToKPgo+PiBUaGlzIHBhdGNoIGludHJvZHVjZXMgYSBuZXcgbWRldiB0cmFuc3Bv cnQgZm9yIHZpcnRpby4gVGhpcyBpcyB1c2VkIHRvCj4+IHVzZSBrZXJuZWwgdmlydGlvIGRyaXZl ciB0byBkcml2ZSB0aGUgbWVkaWF0ZWQgZGV2aWNlIHRoYXQgaXMgY2FwYWJsZQo+PiBvZiBwb3B1 bGF0aW5nIHZpcnRxdWV1ZSBkaXJlY3RseS4KPj4KPj4gQSBuZXcgdmlydGlvLW1kZXYgZHJpdmVy IHdpbGwgYmUgcmVnaXN0ZXJlZCB0byB0aGUgbWRldiBidXMsIHdoZW4gYQo+PiBuZXcgdmlydGlv LW1kZXYgZGV2aWNlIGlzIHByb2JlZCwgaXQgd2lsbCByZWdpc3RlciB0aGUgZGV2aWNlIHdpdGgK Pj4gbWRldiBiYXNlZCBjb25maWcgb3BzLiBUaGlzIG1lYW5zIGl0IGlzIGEgc29mdHdhcmUgdHJh bnNwb3J0IGJldHdlZW4KPj4gbWRldiBkcml2ZXIgYW5kIG1kZXYgZGV2aWNlLiBUaGUgdHJhbnNw b3J0IHdhcyBpbXBsZW1lbnRlZCB0aHJvdWdoCj4+IGRldmljZSBzcGVjaWZpYyBvcHMgd2hpY2gg aXMgYSBwYXJ0IG9mIG1kZXZfcGFyZW50X29wcyBub3cuCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IEph c29uIFdhbmcgPGphc293YW5nQHJlZGhhdC5jb20+Cj4+IC0tLQo+PiAgIGRyaXZlcnMvdmlydGlv L0tjb25maWcgICAgICAgfCAgMTMgKysKPj4gICBkcml2ZXJzL3ZpcnRpby9NYWtlZmlsZSAgICAg IHwgICAxICsKPj4gICBkcml2ZXJzL3ZpcnRpby92aXJ0aW9fbWRldi5jIHwgNDA2ICsrKysrKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrCj4+ICAgMyBmaWxlcyBjaGFuZ2VkLCA0MjAgaW5z ZXJ0aW9ucygrKQo+PiAgIGNyZWF0ZSBtb2RlIDEwMDY0NCBkcml2ZXJzL3ZpcnRpby92aXJ0aW9f bWRldi5jCj4+Cj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL3ZpcnRpby9LY29uZmlnIGIvZHJpdmVy cy92aXJ0aW8vS2NvbmZpZwo+PiBpbmRleCAwNzg2MTVjZjJhZmMuLjU1OGFjNjA3ZDEwNyAxMDA2 NDQKPj4gLS0tIGEvZHJpdmVycy92aXJ0aW8vS2NvbmZpZwo+PiArKysgYi9kcml2ZXJzL3ZpcnRp by9LY29uZmlnCj4+IEBAIC00Myw2ICs0MywxOSBAQCBjb25maWcgVklSVElPX1BDSV9MRUdBQ1kK Pj4gICAKPj4gICAJICBJZiB1bnN1cmUsIHNheSBZLgo+PiAgIAo+PiArY29uZmlnIFZJUlRJT19N REVWCj4+ICsJdHJpc3RhdGUgIk1ERVYgZHJpdmVyIGZvciB2aXJ0aW8gZGV2aWNlcyIKPj4gKwlk ZXBlbmRzIG9uIFZGSU9fTURFViAmJiBWSVJUSU8KPj4gKwlkZWZhdWx0IG4KPj4gKwloZWxwCj4+ ICsJICBUaGlzIGRyaXZlciBwcm92aWRlcyBzdXBwb3J0IGZvciB2aXJ0aW8gYmFzZWQgcGFyYXZp cnR1YWwKPj4gKwkgIGRldmljZSBkcml2ZXIgb3ZlciBNREVWIGJ1cy4gVGhpcyByZXF1aXJlcyB5 b3VyIGVudmlyb25lbW50Cj4+ICsJICBoYXMgYXBwcm9wcmlhdGUgdmlydGlvIG1kZXYgZGV2aWNl IGltcGxlbWVudGF0aW9uIHdoaWNoIG1heQo+PiArCSAgb3BlcmF0ZSBvbiB0aGUgcGh5c2ljYWwg ZGV2aWNlIHRoYXQgdGhlIGRhdGFwYXRoIG9mIHZpcnRpbwo+PiArCSAgY291bGQgYmUgb2ZmbG9h ZGVkIHRvIGhhcmR3YXJlLgo+IFRoYXQgc2VudGVuY2UgaXMgYSBiaXQgY29uZnVzaW5nIHRvIG1l Li4uIHdoYXQgYWJvdXQKPgo+ICJGb3IgdGhpcyB0byBiZSB1c2VmdWwsIHlvdSBuZWVkIGFuIGFw cHJvcHJpYXRlIHZpcnRpbyBtZGV2IGRldmljZQo+IGltcGxlbWVudGF0aW9uIHRoYXQgb3BlcmF0 ZXMgb24gYSBwaHlzaWNhbCBkZXZpY2UgdG8gYWxsb3cgdGhlIGRhdGFwYXRoCj4gb2YgdmlydGlv IHRvIGJlIG9mZmxvYWRlZCB0byBoYXJkd2FyZS4iCj4KPiA/Cj4KPj4gKwo+PiArCSAgSWYgdW5z dXJlLCBzYXkgTQo+IEJ1aWxkaW5nIHRoaXMgYXMgYSBtb2R1bGUgc2hvdWxkIG5vdCBodXJ0IChi dXQgcGxlYXNlIGFkZCBhIHRyYWlsaW5nCj4gJy4nIGhlcmUgOikKPgo+PiArCj4+ICAgY29uZmln IFZJUlRJT19QTUVNCj4+ICAgCXRyaXN0YXRlICJTdXBwb3J0IGZvciB2aXJ0aW8gcG1lbSBkcml2 ZXIiCj4+ICAgCWRlcGVuZHMgb24gVklSVElPCj4gV2l0aCB0aGUgY2hhbmdlcyBhYm92ZSwKPgo+ IFJldmlld2VkLWJ5OiBDb3JuZWxpYSBIdWNrIDxjb2h1Y2tAcmVkaGF0LmNvbT4KPgoKV2lsbCBw b3N0IFYxMC4KClRoYW5rcwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KZHJpLWRldmVsIG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0 b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJp LWRldmVs 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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable 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 9C0EEC5DF64 for ; Wed, 6 Nov 2019 13:12:21 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 742B521882 for ; Wed, 6 Nov 2019 13:12:21 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 742B521882 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9847D6ED34; Wed, 6 Nov 2019 13:12:18 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id CF1AD6ED33 for ; Wed, 6 Nov 2019 13:12:16 +0000 (UTC) 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-325-zNgOzN6XN_Wyyhw7iMVyjw-1; Wed, 06 Nov 2019 08:12:12 -0500 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0B0E68017E0; Wed, 6 Nov 2019 13:12:08 +0000 (UTC) Received: from [10.72.12.193] (ovpn-12-193.pek2.redhat.com [10.72.12.193]) by smtp.corp.redhat.com (Postfix) with ESMTP id 452135D9CD; Wed, 6 Nov 2019 13:11:21 +0000 (UTC) To: Cornelia Huck References: <20191106070548.18980-1-jasowang@redhat.com> <20191106070548.18980-6-jasowang@redhat.com> <20191106120047.5bcf49c3.cohuck@redhat.com> From: Jason Wang Message-ID: <46df7afa-7543-ce19-7ede-9041907e2730@redhat.com> Date: Wed, 6 Nov 2019 21:11:15 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20191106120047.5bcf49c3.cohuck@redhat.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: zNgOzN6XN_Wyyhw7iMVyjw-1 X-Mimecast-Spam-Score: 0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573045935; 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=XdTny3tr4ABNNp/+zCwTPKTknb73JdloNxApkDn3UmA=; b=K490SRJWkOW5mndEW2546x8Wl0YDTcA0kSmp5RT6qlTzEnQwJ/MU/9+6kAPrfYnrxM54Lr g+qmRwvOW89oX3kwmaJ5+x8D7mNI5RUYqg0C7+F2S8yQMsWZALC/EWxcpU+R+rFXybtwR7 kwweT1O5J+jex77DCFuWG9+GlgKWFJM= Subject: Re: [Intel-gfx] [PATCH V9 5/6] virtio: introduce a mdev based transport X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: stefanha@redhat.com, christophe.de.dinechin@gmail.com, kvm@vger.kernel.org, mst@redhat.com, airlied@linux.ie, heiko.carstens@de.ibm.com, dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org, kwankhede@nvidia.com, rob.miller@broadcom.com, linux-s390@vger.kernel.org, sebott@linux.ibm.com, lulu@redhat.com, eperezma@redhat.com, pasic@linux.ibm.com, borntraeger@de.ibm.com, haotian.wang@sifive.com, cunming.liang@intel.com, farman@linux.ibm.com, idos@mellanox.com, gor@linux.ibm.com, intel-gfx@lists.freedesktop.org, xiao.w.wang@intel.com, freude@linux.ibm.com, parav@mellanox.com, zhihong.wang@intel.com, intel-gvt-dev@lists.freedesktop.org, akrowiak@linux.ibm.com, oberpar@linux.ibm.com, tiwei.bie@intel.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, maxime.coquelin@redhat.com, lingshan.zhu@intel.com Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Message-ID: <20191106131115.yMSak_f_eJ076vGy928CuzgI95WFUmSVKd9o2Zu20Xo@z> Ck9uIDIwMTkvMTEvNiDkuIvljYg3OjAwLCBDb3JuZWxpYSBIdWNrIHdyb3RlOgo+IE9uIFdlZCwg IDYgTm92IDIwMTkgMTU6MDU6NDcgKzA4MDAKPiBKYXNvbiBXYW5nIDxqYXNvd2FuZ0ByZWRoYXQu Y29tPiB3cm90ZToKPgo+PiBUaGlzIHBhdGNoIGludHJvZHVjZXMgYSBuZXcgbWRldiB0cmFuc3Bv cnQgZm9yIHZpcnRpby4gVGhpcyBpcyB1c2VkIHRvCj4+IHVzZSBrZXJuZWwgdmlydGlvIGRyaXZl ciB0byBkcml2ZSB0aGUgbWVkaWF0ZWQgZGV2aWNlIHRoYXQgaXMgY2FwYWJsZQo+PiBvZiBwb3B1 bGF0aW5nIHZpcnRxdWV1ZSBkaXJlY3RseS4KPj4KPj4gQSBuZXcgdmlydGlvLW1kZXYgZHJpdmVy IHdpbGwgYmUgcmVnaXN0ZXJlZCB0byB0aGUgbWRldiBidXMsIHdoZW4gYQo+PiBuZXcgdmlydGlv LW1kZXYgZGV2aWNlIGlzIHByb2JlZCwgaXQgd2lsbCByZWdpc3RlciB0aGUgZGV2aWNlIHdpdGgK Pj4gbWRldiBiYXNlZCBjb25maWcgb3BzLiBUaGlzIG1lYW5zIGl0IGlzIGEgc29mdHdhcmUgdHJh bnNwb3J0IGJldHdlZW4KPj4gbWRldiBkcml2ZXIgYW5kIG1kZXYgZGV2aWNlLiBUaGUgdHJhbnNw b3J0IHdhcyBpbXBsZW1lbnRlZCB0aHJvdWdoCj4+IGRldmljZSBzcGVjaWZpYyBvcHMgd2hpY2gg aXMgYSBwYXJ0IG9mIG1kZXZfcGFyZW50X29wcyBub3cuCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IEph c29uIFdhbmcgPGphc293YW5nQHJlZGhhdC5jb20+Cj4+IC0tLQo+PiAgIGRyaXZlcnMvdmlydGlv L0tjb25maWcgICAgICAgfCAgMTMgKysKPj4gICBkcml2ZXJzL3ZpcnRpby9NYWtlZmlsZSAgICAg IHwgICAxICsKPj4gICBkcml2ZXJzL3ZpcnRpby92aXJ0aW9fbWRldi5jIHwgNDA2ICsrKysrKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrCj4+ICAgMyBmaWxlcyBjaGFuZ2VkLCA0MjAgaW5z ZXJ0aW9ucygrKQo+PiAgIGNyZWF0ZSBtb2RlIDEwMDY0NCBkcml2ZXJzL3ZpcnRpby92aXJ0aW9f bWRldi5jCj4+Cj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL3ZpcnRpby9LY29uZmlnIGIvZHJpdmVy cy92aXJ0aW8vS2NvbmZpZwo+PiBpbmRleCAwNzg2MTVjZjJhZmMuLjU1OGFjNjA3ZDEwNyAxMDA2 NDQKPj4gLS0tIGEvZHJpdmVycy92aXJ0aW8vS2NvbmZpZwo+PiArKysgYi9kcml2ZXJzL3ZpcnRp by9LY29uZmlnCj4+IEBAIC00Myw2ICs0MywxOSBAQCBjb25maWcgVklSVElPX1BDSV9MRUdBQ1kK Pj4gICAKPj4gICAJICBJZiB1bnN1cmUsIHNheSBZLgo+PiAgIAo+PiArY29uZmlnIFZJUlRJT19N REVWCj4+ICsJdHJpc3RhdGUgIk1ERVYgZHJpdmVyIGZvciB2aXJ0aW8gZGV2aWNlcyIKPj4gKwlk ZXBlbmRzIG9uIFZGSU9fTURFViAmJiBWSVJUSU8KPj4gKwlkZWZhdWx0IG4KPj4gKwloZWxwCj4+ ICsJICBUaGlzIGRyaXZlciBwcm92aWRlcyBzdXBwb3J0IGZvciB2aXJ0aW8gYmFzZWQgcGFyYXZp cnR1YWwKPj4gKwkgIGRldmljZSBkcml2ZXIgb3ZlciBNREVWIGJ1cy4gVGhpcyByZXF1aXJlcyB5 b3VyIGVudmlyb25lbW50Cj4+ICsJICBoYXMgYXBwcm9wcmlhdGUgdmlydGlvIG1kZXYgZGV2aWNl IGltcGxlbWVudGF0aW9uIHdoaWNoIG1heQo+PiArCSAgb3BlcmF0ZSBvbiB0aGUgcGh5c2ljYWwg ZGV2aWNlIHRoYXQgdGhlIGRhdGFwYXRoIG9mIHZpcnRpbwo+PiArCSAgY291bGQgYmUgb2ZmbG9h ZGVkIHRvIGhhcmR3YXJlLgo+IFRoYXQgc2VudGVuY2UgaXMgYSBiaXQgY29uZnVzaW5nIHRvIG1l Li4uIHdoYXQgYWJvdXQKPgo+ICJGb3IgdGhpcyB0byBiZSB1c2VmdWwsIHlvdSBuZWVkIGFuIGFw cHJvcHJpYXRlIHZpcnRpbyBtZGV2IGRldmljZQo+IGltcGxlbWVudGF0aW9uIHRoYXQgb3BlcmF0 ZXMgb24gYSBwaHlzaWNhbCBkZXZpY2UgdG8gYWxsb3cgdGhlIGRhdGFwYXRoCj4gb2YgdmlydGlv IHRvIGJlIG9mZmxvYWRlZCB0byBoYXJkd2FyZS4iCj4KPiA/Cj4KPj4gKwo+PiArCSAgSWYgdW5z dXJlLCBzYXkgTQo+IEJ1aWxkaW5nIHRoaXMgYXMgYSBtb2R1bGUgc2hvdWxkIG5vdCBodXJ0IChi dXQgcGxlYXNlIGFkZCBhIHRyYWlsaW5nCj4gJy4nIGhlcmUgOikKPgo+PiArCj4+ICAgY29uZmln IFZJUlRJT19QTUVNCj4+ICAgCXRyaXN0YXRlICJTdXBwb3J0IGZvciB2aXJ0aW8gcG1lbSBkcml2 ZXIiCj4+ICAgCWRlcGVuZHMgb24gVklSVElPCj4gV2l0aCB0aGUgY2hhbmdlcyBhYm92ZSwKPgo+ IFJldmlld2VkLWJ5OiBDb3JuZWxpYSBIdWNrIDxjb2h1Y2tAcmVkaGF0LmNvbT4KPgoKV2lsbCBw b3N0IFYxMC4KClRoYW5rcwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0 b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50 ZWwtZ2Z4