Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp2485914pxb; Fri, 29 Oct 2021 02:20:12 -0700 (PDT) X-Google-Smtp-Source: ABdhPJx11gtLvAYPrROH0d2ujf3uaNZ1aa+3gqdrQb1G/+lp/ySo1r7DTQzCelC92aWE88yuURq2 X-Received: by 2002:a17:90b:3ecc:: with SMTP id rm12mr10288557pjb.48.1635499212578; Fri, 29 Oct 2021 02:20:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1635499212; cv=none; d=google.com; s=arc-20160816; b=s+WBW8sR8MlQle+qrfQoSDB0CWKuHXSB2pL+8ShqD3mty9wUcD8OZ/5Z9ttYCH6lcY EFbnOWcoFXKnrKrIXk09SDCq8WHAdOy3sAMEUgffT6n7nS5PKJvMnfmTG4chL69Bupcm E1+28d/bSSOY8i5bkjnMEUbo22n+wlC/FE36YCpyKO2bUb9g1zjLo2k/AeYthCzy2VFJ vzWphYjguMsbeKvWubW9NuAgdhxQM1UYBKI78qsBXIblAmzkflHOH1LZ0eTMj4bzm09V BlzevjASZW2DhnP1qRK1DVsGn/Qy8YeYHSpwlNjLHmlejlrm2Kgk39MmvVUIa1+jIECa VuZQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=HeHvbdWbvJFXZs1h1CYZN8hj9RqIhwYx42MnOxS+zts=; b=J2/xOluKaaynBbPXu4xjJw6OUKS80ZRz/RX5aEvpF1hE+XAVIEx93/5EESdhxR/jdZ 6kv4yP6/Vu6RK9BeZdwQPulCEuveYc3s52g+hnyPCIdk74hbL5yseyCPihVxHm4OaGpS MWo9qMExcphn69D7tiE9BknVFNLuzGq7RF8+kWDfpRUswAqoBVLffYftY068kM0ey4mI cxhWdtweDVyRsc6fzxMq6uakd15UECyKtoPy4RujdO3ksdlt/ejtc4agYQnfc0SYjq0U q21iutV5b9cwwK5+Wd8bZF16ZkSK2l76p/Bz+JHAlb/8tpfKFg0P85dNC+d7+47uafs6 9Liw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id i31si6539161pgm.9.2021.10.29.02.20.00; Fri, 29 Oct 2021 02:20:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231879AbhJ2JTW (ORCPT + 99 others); Fri, 29 Oct 2021 05:19:22 -0400 Received: from out30-45.freemail.mail.aliyun.com ([115.124.30.45]:34188 "EHLO out30-45.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231657AbhJ2JS0 (ORCPT ); Fri, 29 Oct 2021 05:18:26 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R941e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01424;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0Uu7wNNx_1635498896; Received: from localhost.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0Uu7wNNx_1635498896) by smtp.aliyun-inc.com(127.0.0.1); Fri, 29 Oct 2021 17:15:03 +0800 From: Wu Zongyong To: jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, mst@redhat.com, wuzongyong@linux.alibaba.com Cc: wei.yang1@linux.alibaba.com Subject: [PATCH v7 4/9] vdpa: add new callback get_vq_num_min in vdpa_config_ops Date: Fri, 29 Oct 2021 17:14:45 +0800 Message-Id: X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This callback is optional. For vdpa devices that not support to change virtqueue size, get_vq_num_min and get_vq_num_max will return the same value, so that users can choose a correct value for that device. Suggested-by: Jason Wang Signed-off-by: Wu Zongyong Acked-by: Jason Wang --- include/linux/vdpa.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index a896ee021e5f..30864848950b 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -171,6 +171,9 @@ struct vdpa_map_file { * @get_vq_num_max: Get the max size of virtqueue * @vdev: vdpa device * Returns u16: max size of virtqueue + * @get_vq_num_min: Get the min size of virtqueue (optional) + * @vdev: vdpa device + * Returns u16: min size of virtqueue * @get_device_id: Get virtio device id * @vdev: vdpa device * Returns u32: virtio device id @@ -266,6 +269,7 @@ struct vdpa_config_ops { void (*set_config_cb)(struct vdpa_device *vdev, struct vdpa_callback *cb); u16 (*get_vq_num_max)(struct vdpa_device *vdev); + u16 (*get_vq_num_min)(struct vdpa_device *vdev); u32 (*get_device_id)(struct vdpa_device *vdev); u32 (*get_vendor_id)(struct vdpa_device *vdev); u8 (*get_status)(struct vdpa_device *vdev); -- 2.31.1