Received: by 2002:a05:6a11:4021:0:0:0:0 with SMTP id ky33csp318616pxb; Tue, 28 Sep 2021 23:14:24 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzatFHVzg+kNlrP4P1xIr6Q25W4WmKYZdkWvwPMu/knB53DJymQbMfKWIjDPpkWWc6dwBUq X-Received: by 2002:a17:90a:d589:: with SMTP id v9mr4551128pju.2.1632896064257; Tue, 28 Sep 2021 23:14:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1632896064; cv=none; d=google.com; s=arc-20160816; b=W/mYtoFPhWyBT3swmjgYC4TwTS5aUbiBFjVSbtbkJoYBO7i+5dvrrZ+xfzkFVlDjlT CSP8prt8CEi6Gh4vVgAc+W4L1JUUbNydsunaj9a/PkS+FheO8vQYVU9Q7GdpuB/mFJZy y55MTKxwIXcM+B5azbfzE1qPl/EiSYl7+umc9PV8B8bIPnt7eBBdoNWnJAZffapXaoSR EdpcgVQlJtP+gxXF3c7wGWwP6E4SySeq9QpV2p2WwO+uXJ7w+togWHcMwySv8X/DwRBV AeHMb2HW/sRGZu9NZ2OMu/IAv/kyQx0dslh8waz89+8NVF3ymIbg+MpfQo6MpdTshZ4K OxQw== 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=Wryc5/dJgBqaLkcrhFwGrnHbVAtRpWJZAq/hISH9UlI=; b=pzaN5aK16YD3iJwUTlzNk08Tf10SroCQ8B77RUTXqDL7z5tbqF9I2A2A2rJfz3w8G4 Qi2KnqSjyyWOcECY6S1R+fytE0ObnJV/RiZSr+I96jexVlWiDiapoW9iD6vPTiE38iQ0 54D27uzfVwW+U7Spzaqd7EynoXvwm+A2MFGQjm8IYqe4x9VUa9UMbpYqk5YnCNy/8oV2 zWEaDvrUdBgYHvNFO5OqzHYc8pFXvUV95MoG9jydn4psLGJGKlnGHKfgI5PQgOMAcZKG 1rln1ocj/w2APIAmWmfoEqZppt4Bp9BmlIWe2Y5XXYiN14yZL3ECqb4JpwIk2d80B+Ql kSog== 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 pg14si786156pjb.176.2021.09.28.23.14.08; Tue, 28 Sep 2021 23:14:24 -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 S244364AbhI2GOD (ORCPT + 99 others); Wed, 29 Sep 2021 02:14:03 -0400 Received: from out30-130.freemail.mail.aliyun.com ([115.124.30.130]:58298 "EHLO out30-130.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244283AbhI2GN5 (ORCPT ); Wed, 29 Sep 2021 02:13:57 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R591e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04357;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0Uq.GBNB_1632895927; Received: from localhost.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0Uq.GBNB_1632895927) by smtp.aliyun-inc.com(127.0.0.1); Wed, 29 Sep 2021 14:12:15 +0800 From: Wu Zongyong To: wuzongyong@linux.alibaba.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, mst@redhat.com Cc: wei.yang1@linux.alibaba.com Subject: [PATCH v4 4/7] vdpa: add new callback get_vq_num_min in vdpa_config_ops Date: Wed, 29 Sep 2021 14:11:43 +0800 Message-Id: <451ce3c272ebd5d532db1ed19c2ab53c4609f7ad.1632882380.git.wuzongyong@linux.alibaba.com> 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 --- 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