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 CF66DC5DF60 for ; Tue, 5 Nov 2019 18:34:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A9CE420656 for ; Tue, 5 Nov 2019 18:34:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="fyAhyk3O" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390726AbfKESeH (ORCPT ); Tue, 5 Nov 2019 13:34:07 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:31409 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2390423AbfKESeH (ORCPT ); Tue, 5 Nov 2019 13:34:07 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1572978846; 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=H9feM4A9AfoDIHKTuN0rynXXPyED946lrCjOtbhrTDw=; b=fyAhyk3Onwb2GiEfmRvlfSVxRiWKmRCu5SE3+k7sxk9NDiZehL0/B81n0msvxmpnZ7q8Ir 2KxVPV2sUtZjpcTsPdHuo78MiGyI7iGlReM8VylGioh3vCTLdYU8YRDZmJb+gIfJeb7h37 YqACcVZumzvbczGHfq0exOAwjMRb5SU= 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-230-wKB1DIDFPlmgljNYjH5vkw-1; Tue, 05 Nov 2019 13:34:02 -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 0F8751800D4A; Tue, 5 Nov 2019 18:33:58 +0000 (UTC) Received: from gondolin (unknown [10.36.118.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9D4395D9C9; Tue, 5 Nov 2019 18:33:39 +0000 (UTC) Date: Tue, 5 Nov 2019 19:33:36 +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, idos@mellanox.com, eperezma@redhat.com, lulu@redhat.com, parav@mellanox.com, christophe.de.dinechin@gmail.com, kevin.tian@intel.com, stefanha@redhat.com Subject: Re: [PATCH V8 5/6] virtio: introduce a mdev based transport Message-ID: <20191105193336.570e8e3a.cohuck@redhat.com> In-Reply-To: <20191105093240.5135-6-jasowang@redhat.com> References: <20191105093240.5135-1-jasowang@redhat.com> <20191105093240.5135-6-jasowang@redhat.com> Organization: Red Hat GmbH MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: wKB1DIDFPlmgljNYjH5vkw-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252 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 Tue, 5 Nov 2019 17:32:39 +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. >=20 > 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. >=20 > Signed-off-by: Jason Wang > --- > drivers/virtio/Kconfig | 7 + > drivers/virtio/Makefile | 1 + > drivers/virtio/virtio_mdev.c | 407 +++++++++++++++++++++++++++++++++++ > 3 files changed, 415 insertions(+) > create mode 100644 drivers/virtio/virtio_mdev.c Reviewed-by: Cornelia Huck From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cornelia Huck Subject: Re: [PATCH V8 5/6] virtio: introduce a mdev based transport Date: Tue, 5 Nov 2019 19:33:36 +0100 Message-ID: <20191105193336.570e8e3a.cohuck@redhat.com> References: <20191105093240.5135-1-jasowang@redhat.com> <20191105093240.5135-6-jasowang@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20191105093240.5135-6-jasowang@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jason Wang 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 List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCAgNSBOb3YgMjAxOSAxNzozMjozOSArMDgwMApKYXNvbiBXYW5nIDxqYXNvd2FuZ0By ZWRoYXQuY29tPiB3cm90ZToKCj4gVGhpcyBwYXRjaCBpbnRyb2R1Y2VzIGEgbmV3IG1kZXYgdHJh bnNwb3J0IGZvciB2aXJ0aW8uIFRoaXMgaXMgdXNlZCB0bwo+IHVzZSBrZXJuZWwgdmlydGlvIGRy aXZlciB0byBkcml2ZSB0aGUgbWVkaWF0ZWQgZGV2aWNlIHRoYXQgaXMgY2FwYWJsZQo+IG9mIHBv cHVsYXRpbmcgdmlydHF1ZXVlIGRpcmVjdGx5Lgo+IAo+IEEgbmV3IHZpcnRpby1tZGV2IGRyaXZl ciB3aWxsIGJlIHJlZ2lzdGVyZWQgdG8gdGhlIG1kZXYgYnVzLCB3aGVuIGEKPiBuZXcgdmlydGlv LW1kZXYgZGV2aWNlIGlzIHByb2JlZCwgaXQgd2lsbCByZWdpc3RlciB0aGUgZGV2aWNlIHdpdGgK PiBtZGV2IGJhc2VkIGNvbmZpZyBvcHMuIFRoaXMgbWVhbnMgaXQgaXMgYSBzb2Z0d2FyZSB0cmFu c3BvcnQgYmV0d2Vlbgo+IG1kZXYgZHJpdmVyIGFuZCBtZGV2IGRldmljZS4gVGhlIHRyYW5zcG9y dCB3YXMgaW1wbGVtZW50ZWQgdGhyb3VnaAo+IGRldmljZSBzcGVjaWZpYyBvcHMgd2hpY2ggaXMg YSBwYXJ0IG9mIG1kZXZfcGFyZW50X29wcyBub3cuCj4gCj4gU2lnbmVkLW9mZi1ieTogSmFzb24g V2FuZyA8amFzb3dhbmdAcmVkaGF0LmNvbT4KPiAtLS0KPiAgZHJpdmVycy92aXJ0aW8vS2NvbmZp ZyAgICAgICB8ICAgNyArCj4gIGRyaXZlcnMvdmlydGlvL01ha2VmaWxlICAgICAgfCAgIDEgKwo+ ICBkcml2ZXJzL3ZpcnRpby92aXJ0aW9fbWRldi5jIHwgNDA3ICsrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrCj4gIDMgZmlsZXMgY2hhbmdlZCwgNDE1IGluc2VydGlvbnMoKykKPiAg Y3JlYXRlIG1vZGUgMTAwNjQ0IGRyaXZlcnMvdmlydGlvL3ZpcnRpb19tZGV2LmMKClJldmlld2Vk LWJ5OiBDb3JuZWxpYSBIdWNrIDxjb2h1Y2tAcmVkaGF0LmNvbT4KCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50 ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeA== 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=-3.8 required=3.0 tests=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 DD52DC5DF62 for ; 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Tue, 05 Nov 2019 13:34:02 -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 0F8751800D4A; Tue, 5 Nov 2019 18:33:58 +0000 (UTC) Received: from gondolin (unknown [10.36.118.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9D4395D9C9; Tue, 5 Nov 2019 18:33:39 +0000 (UTC) Date: Tue, 5 Nov 2019 19:33:36 +0100 From: Cornelia Huck To: Jason Wang Subject: Re: [PATCH V8 5/6] virtio: introduce a mdev based transport Message-ID: <20191105193336.570e8e3a.cohuck@redhat.com> In-Reply-To: <20191105093240.5135-6-jasowang@redhat.com> References: <20191105093240.5135-1-jasowang@redhat.com> <20191105093240.5135-6-jasowang@redhat.com> Organization: Red Hat GmbH MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: wKB1DIDFPlmgljNYjH5vkw-1 X-Mimecast-Spam-Score: 0 X-Mailman-Original-DKIM-Signature: v=1; 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Tue, 05 Nov 2019 13:34:02 -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 0F8751800D4A; Tue, 5 Nov 2019 18:33:58 +0000 (UTC) Received: from gondolin (unknown [10.36.118.27]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9D4395D9C9; Tue, 5 Nov 2019 18:33:39 +0000 (UTC) Date: Tue, 5 Nov 2019 19:33:36 +0100 From: Cornelia Huck To: Jason Wang Message-ID: <20191105193336.570e8e3a.cohuck@redhat.com> In-Reply-To: <20191105093240.5135-6-jasowang@redhat.com> References: <20191105093240.5135-1-jasowang@redhat.com> <20191105093240.5135-6-jasowang@redhat.com> Organization: Red Hat GmbH MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-MC-Unique: wKB1DIDFPlmgljNYjH5vkw-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=1572978844; 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=H9feM4A9AfoDIHKTuN0rynXXPyED946lrCjOtbhrTDw=; b=fy4f5oIVodgmX/8auhp1MWI6Iluwk/JeitPMpLHBXCyr4GgTsxVUmBD20s+pyzvH/OToIQ 4CFD9M+MxtAIpB97F45jHgLxLlbHOX0TBUcnQFdMimug0GxnLTSmamcmGdrIZ4NHFC//gS vZk6zRrA/MnfRWvpz8fN5i+kGdMMFRo= Subject: Re: [Intel-gfx] [PATCH V8 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-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Message-ID: <20191105183336.rgGJkjHu0ORO6dvuiBDcWCZlfFZnWej2RLhiFMRPVvs@z> T24gVHVlLCAgNSBOb3YgMjAxOSAxNzozMjozOSArMDgwMApKYXNvbiBXYW5nIDxqYXNvd2FuZ0By ZWRoYXQuY29tPiB3cm90ZToKCj4gVGhpcyBwYXRjaCBpbnRyb2R1Y2VzIGEgbmV3IG1kZXYgdHJh bnNwb3J0IGZvciB2aXJ0aW8uIFRoaXMgaXMgdXNlZCB0bwo+IHVzZSBrZXJuZWwgdmlydGlvIGRy aXZlciB0byBkcml2ZSB0aGUgbWVkaWF0ZWQgZGV2aWNlIHRoYXQgaXMgY2FwYWJsZQo+IG9mIHBv cHVsYXRpbmcgdmlydHF1ZXVlIGRpcmVjdGx5Lgo+IAo+IEEgbmV3IHZpcnRpby1tZGV2IGRyaXZl ciB3aWxsIGJlIHJlZ2lzdGVyZWQgdG8gdGhlIG1kZXYgYnVzLCB3aGVuIGEKPiBuZXcgdmlydGlv LW1kZXYgZGV2aWNlIGlzIHByb2JlZCwgaXQgd2lsbCByZWdpc3RlciB0aGUgZGV2aWNlIHdpdGgK PiBtZGV2IGJhc2VkIGNvbmZpZyBvcHMuIFRoaXMgbWVhbnMgaXQgaXMgYSBzb2Z0d2FyZSB0cmFu c3BvcnQgYmV0d2Vlbgo+IG1kZXYgZHJpdmVyIGFuZCBtZGV2IGRldmljZS4gVGhlIHRyYW5zcG9y dCB3YXMgaW1wbGVtZW50ZWQgdGhyb3VnaAo+IGRldmljZSBzcGVjaWZpYyBvcHMgd2hpY2ggaXMg YSBwYXJ0IG9mIG1kZXZfcGFyZW50X29wcyBub3cuCj4gCj4gU2lnbmVkLW9mZi1ieTogSmFzb24g V2FuZyA8amFzb3dhbmdAcmVkaGF0LmNvbT4KPiAtLS0KPiAgZHJpdmVycy92aXJ0aW8vS2NvbmZp ZyAgICAgICB8ICAgNyArCj4gIGRyaXZlcnMvdmlydGlvL01ha2VmaWxlICAgICAgfCAgIDEgKwo+ ICBkcml2ZXJzL3ZpcnRpby92aXJ0aW9fbWRldi5jIHwgNDA3ICsrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrCj4gIDMgZmlsZXMgY2hhbmdlZCwgNDE1IGluc2VydGlvbnMoKykKPiAg Y3JlYXRlIG1vZGUgMTAwNjQ0IGRyaXZlcnMvdmlydGlvL3ZpcnRpb19tZGV2LmMKClJldmlld2Vk LWJ5OiBDb3JuZWxpYSBIdWNrIDxjb2h1Y2tAcmVkaGF0LmNvbT4KCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50 ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeA==