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[23.128.96.18]) by mx.google.com with ESMTP id t143si8004863pgb.140.2021.10.24.19.22.54; Sun, 24 Oct 2021 19:23:06 -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; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=EPpdudTB; 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=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232057AbhJYCTv (ORCPT + 99 others); Sun, 24 Oct 2021 22:19:51 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:27252 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231992AbhJYCTu (ORCPT ); Sun, 24 Oct 2021 22:19:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1635128248; 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: in-reply-to:in-reply-to:references:references; bh=AYNZwC/fZIiCDsDJV++nVrgkwMv82Wn8FjvaRuBUZEE=; b=EPpdudTB5aC5bDJUeVeUiDu5FMnbR5x+cXFKdJNlLTCZkta7lEWcg6OjTjHWFo+XETsx1g xP+EJcQj3/UWZEz4gwiEo7X1VNupCdV70hc1YfG+AEuUd48NCueHvWnC7mTm6JpRPKkc3h RwUFW6YQX0bIlTKYpYerL1U2EorlLmk= Received: from mail-lj1-f199.google.com (mail-lj1-f199.google.com [209.85.208.199]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-107-k5rpUJknPdqF6xLZ3I_9TQ-1; Sun, 24 Oct 2021 22:17:27 -0400 X-MC-Unique: k5rpUJknPdqF6xLZ3I_9TQ-1 Received: by mail-lj1-f199.google.com with SMTP id 136-20020a2e098e000000b002110b902242so2215775ljj.20 for ; Sun, 24 Oct 2021 19:17:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=AYNZwC/fZIiCDsDJV++nVrgkwMv82Wn8FjvaRuBUZEE=; b=7HD0TbdyYHfe4LCaYq6u/6unveKWIAe8MmeyUN+tunswYA7UtnagYwHWglyjz6OCpC 1ZT4UvLCtTOqfqDPDGctGV4g/VOLcVrU/OncX8WgwL/eaJhejRA0CCHMG3b6ZTNHc6yj 2wBJ6Nye/3RYfu/UdUbohRlCwM2Og5KkTq2Uj9UHMiPFJRw77wR9XR1HteOHYhAXP/9K t5LkGA9VJzD+Z7bxQjPXUZeF88B8UXnGN/9/Ggla47/F3K4HGd8ydxCXawHWC1tq5wgg ypJD+t+Um/RBx9yykhy5eH3SfoMACx3j/sy4uy37Js8eHmn8Ffk1M2aCXQaF8XdmvdOG qtLg== X-Gm-Message-State: AOAM530PdPFS5BuO99QBr8dSfl2cL0Q8z1pweFNupBhT41S2syqTOKtl nSjZ8qxiTPJ4CqVUMAsmrxza6v1s03ZpqDLcWC6+0PczuPsr+GDT6ZBDgwf+UhTqK2W4HxG9Ra/ GuUItZDuFrxCyDsIPD5H68kEk51cxwpIxa2yhajld X-Received: by 2002:a2e:7212:: with SMTP id n18mr15985533ljc.369.1635128245585; Sun, 24 Oct 2021 19:17:25 -0700 (PDT) X-Received: by 2002:a2e:7212:: with SMTP id n18mr15985502ljc.369.1635128245356; Sun, 24 Oct 2021 19:17:25 -0700 (PDT) MIME-Version: 1.0 References: <7e4d859949fa37fce2289a4b287843cdeffcaf8a.1634870456.git.wuzongyong@linux.alibaba.com> In-Reply-To: <7e4d859949fa37fce2289a4b287843cdeffcaf8a.1634870456.git.wuzongyong@linux.alibaba.com> From: Jason Wang Date: Mon, 25 Oct 2021 10:17:14 +0800 Message-ID: Subject: Re: [PATCH v6 4/8] vdpa: add new callback get_vq_num_min in vdpa_config_ops To: Wu Zongyong Cc: virtualization , linux-kernel , mst , wei.yang1@linux.alibaba.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Oct 22, 2021 at 10:44 AM Wu Zongyong wrote: > > 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 >