From patchwork Fri Jun 3 10:09:41 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Eugenio Perez Martin X-Patchwork-Id: 12868916 X-Patchwork-Delegate: kuba@kernel.org 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 A66F8C43334 for ; Fri, 3 Jun 2022 10:10:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243452AbiFCKKO (ORCPT ); Fri, 3 Jun 2022 06:10:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243432AbiFCKKJ (ORCPT ); Fri, 3 Jun 2022 06:10:09 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id EFAE53B037 for ; Fri, 3 Jun 2022 03:10:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1654251007; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0BBrHrIvz5xwm3AvObGALT/JpyyQvxptTTPXovns/7Y=; b=Vsp3PZWkQ19AA3h9jzIyeQ9Qyt32VInxGtg9rdR9NRqxqhhlI8H/EswZVGKOv2XXc/l+CI lxv7UrrIZ58+nmDQKoTqo3rcenes5aa3dEy3L73H+yeFBJgpOmyuafiMt+k+JAoxTABZ82 kHSw0TnRmux3l4kYDmewHe36ytMaquA= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-641-lmu9olJ3Pg-wG03v9Vfw6g-1; Fri, 03 Jun 2022 06:09:59 -0400 X-MC-Unique: lmu9olJ3Pg-wG03v9Vfw6g-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7F8361C06EDD; Fri, 3 Jun 2022 10:09:58 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.40.192.190]) by smtp.corp.redhat.com (Postfix) with ESMTP id 964FE492C3B; Fri, 3 Jun 2022 10:09:53 +0000 (UTC) From: =?utf-8?q?Eugenio_P=C3=A9rez?= To: kvm@vger.kernel.org, Jason Wang , "Michael S. Tsirkin" , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, virtualization@lists.linux-foundation.org Cc: Christophe JAILLET , Longpeng , Stefano Garzarella , dinang@xilinx.com, Piotr.Uminski@intel.com, martinpo@xilinx.com, tanuj.kamde@amd.com, Parav Pandit , Zhang Min , habetsm.xilinx@gmail.com, Zhu Lingshan , lulu@redhat.com, hanand@xilinx.com, martinh@xilinx.com, Si-Wei Liu , gautam.dawar@amd.com, Xie Yongji , ecree.xilinx@gmail.com, pabloc@xilinx.com, lvivier@redhat.com, Eli Cohen , Wu Zongyong , Dan Carpenter Subject: [PATCH v5 1/4] vdpa: Add suspend operation Date: Fri, 3 Jun 2022 12:09:41 +0200 Message-Id: <20220603100944.871727-2-eperezma@redhat.com> In-Reply-To: <20220603100944.871727-1-eperezma@redhat.com> References: <20220603100944.871727-1-eperezma@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.10 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This operation is optional: It it's not implemented, backend feature bit will not be exposed. Signed-off-by: Eugenio Pérez --- include/linux/vdpa.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 15af802d41c4c..8f4559795bf9f 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -215,6 +215,10 @@ struct vdpa_map_file { * @reset: Reset device * @vdev: vdpa device * Returns integer: success (0) or error (< 0) + * @suspend: Suspend or resume the device (optional) + * @vdev: vdpa device + * @suspend: suspend (true), resume (false) + * Returns integer: success (0) or error (< 0) * @get_config_size: Get the size of the configuration space includes * fields that are conditional on feature bits. * @vdev: vdpa device @@ -316,6 +320,7 @@ struct vdpa_config_ops { u8 (*get_status)(struct vdpa_device *vdev); void (*set_status)(struct vdpa_device *vdev, u8 status); int (*reset)(struct vdpa_device *vdev); + int (*suspend)(struct vdpa_device *vdev, bool suspend); size_t (*get_config_size)(struct vdpa_device *vdev); void (*get_config)(struct vdpa_device *vdev, unsigned int offset, void *buf, unsigned int len);