From patchwork Tue Mar 15 03:25:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Longpeng(Mike)" X-Patchwork-Id: 12780997 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 3B6A4C433EF for ; Tue, 15 Mar 2022 03:26:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344104AbiCOD1N (ORCPT ); Mon, 14 Mar 2022 23:27:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57788 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235714AbiCOD1L (ORCPT ); Mon, 14 Mar 2022 23:27:11 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2ADD5483AE; Mon, 14 Mar 2022 20:26:01 -0700 (PDT) Received: from dggpeml500023.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KHdwH0qDjzcZyY; Tue, 15 Mar 2022 11:21:03 +0800 (CST) Received: from dggpeml100016.china.huawei.com (7.185.36.216) by dggpeml500023.china.huawei.com (7.185.36.114) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Tue, 15 Mar 2022 11:25:59 +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 15.1.2308.21; Tue, 15 Mar 2022 11:25:58 +0800 From: "Longpeng(Mike)" To: , , , CC: , , , , , , , Longpeng Subject: [PATCH v2 0/3] vdpa: add two ioctl commands to support generic vDPA Date: Tue, 15 Mar 2022 11:25:50 +0800 Message-ID: <20220315032553.455-1-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: dggems704-chm.china.huawei.com (10.3.19.181) 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) Changes v2 -> v3: Patch 2: - use a separate patch for the u32 converting. [Jason] Changes v1(RFC) -> v2: Patch 1: - be more verbose in commit message and the comment for get_config_size [Jason] Patch 2: - change the type of nvqs to u32 [Jason] Patch 3: - drop from this series because Gautam sent another proposal[2] [1] https://lore.kernel.org/all/20220105005900.860-1-longpeng2@huawei.com/ [2] https://patchwork.kernel.org/project/kvm/patch/20220224212314.1326-20-gdawar@xilinx.com/ Longpeng (3): vdpa: support exposing the config size to userspace vdpa: change the type of nvqs to u32 vdpa: support exposing the count of vqs to userspace drivers/vdpa/vdpa.c | 6 +++--- drivers/vhost/vdpa.c | 40 ++++++++++++++++++++++++++++++++++++---- include/linux/vdpa.h | 9 +++++---- include/uapi/linux/vhost.h | 7 +++++++ 4 files changed, 51 insertions(+), 11 deletions(-)