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Tsirkin" , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Stefano Garzarella , Longpeng , Zhu Lingshan , martinh@xilinx.com, hanand@xilinx.com, Si-Wei Liu , dinang@xilinx.com, Eli Cohen , lvivier@redhat.com, pabloc@xilinx.com, gautam.dawar@amd.com, Xie Yongji , habetsm.xilinx@gmail.com, Christophe JAILLET , tanuj.kamde@amd.com, eperezma@redhat.com, Wu Zongyong , martinpo@xilinx.com, lulu@redhat.com, ecree.xilinx@gmail.com, Parav Pandit , Dan Carpenter , Zhang Min Subject: [PATCH 1/4] vdpa: Add stop operation Date: Fri, 20 May 2022 19:23:22 +0200 Message-Id: <20220520172325.980884-2-eperezma@redhat.com> In-Reply-To: <20220520172325.980884-1-eperezma@redhat.com> References: <20220520172325.980884-1-eperezma@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.85 on 10.11.54.10 X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This operation is optional: It it's not implemented, backend feature bit will not be exposed. Signed-off-by: Eugenio PĂ©rez --- include/linux/vdpa.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 15af802d41c4..ddfebc4e1e01 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -215,6 +215,11 @@ struct vdpa_map_file { * @reset: Reset device * @vdev: vdpa device * Returns integer: success (0) or error (< 0) + * @stop: Stop or resume the device (optional, but it must + * be implemented if require device stop) + * @vdev: vdpa device + * @stop: stop (true), not stop (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 +321,7 @@ 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 (*stop)(struct vdpa_device *vdev, bool stop); size_t (*get_config_size)(struct vdpa_device *vdev); void (*get_config)(struct vdpa_device *vdev, unsigned int offset, void *buf, unsigned int len); -- 2.27.0