From patchwork Mon Jan 17 09:29:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Longpeng(Mike)" X-Patchwork-Id: 12715035 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 56D35C433EF for ; Mon, 17 Jan 2022 09:29:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235715AbiAQJ32 (ORCPT ); Mon, 17 Jan 2022 04:29:28 -0500 Received: from szxga08-in.huawei.com ([45.249.212.255]:31097 "EHLO szxga08-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235593AbiAQJ32 (ORCPT ); Mon, 17 Jan 2022 04:29:28 -0500 Received: from dggpeml500022.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4JcmjM59W0z1FCfC; Mon, 17 Jan 2022 17:25:43 +0800 (CST) Received: from dggpeml100016.china.huawei.com (7.185.36.216) by dggpeml500022.china.huawei.com (7.185.36.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Mon, 17 Jan 2022 17:29:26 +0800 Received: from DESKTOP-27KDQMV.china.huawei.com (10.174.148.223) by dggpeml100016.china.huawei.com (7.185.36.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.20; Mon, 17 Jan 2022 17:29:25 +0800 From: "Longpeng(Mike)" To: , , , CC: , , , , , , , Longpeng Subject: [RFC 0/3] vdpa: add two ioctl commands to support generic vDPA Date: Mon, 17 Jan 2022 17:29:18 +0800 Message-ID: <20220117092921.1573-1-longpeng2@huawei.com> X-Mailer: git-send-email 2.25.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.174.148.223] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml100016.china.huawei.com (7.185.36.216) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Longpeng To support generic vdpa deivce[1], we need add the following ioctls: - GET_CONFIG_SIZE: the size of the virtio config space (Patch 1) - GET_VQS_COUNT: the count of virtqueues that exposed (Patch 2) Patch 3 supports ctrl vq for vdpasim_net, then guys can test the generic vDPA device on the vdpasim_net/blk. [1] https://lore.kernel.org/all/20220105005900.860-1-longpeng2@huawei.com/ Longpeng (3): vdpa: support exposing the config size to userspace vdpa: support exposing the count of vqs to userspace vdpasim_net: control virtqueue support drivers/vdpa/vdpa_sim/vdpa_sim_net.c | 83 +++++++++++++++++++++++++++- drivers/vhost/vdpa.c | 30 ++++++++++ include/uapi/linux/vhost.h | 7 +++ 3 files changed, 118 insertions(+), 2 deletions(-)