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Date:   Tue, 28 Jun 2022 15:39:55 +0200
From:   Stefano Garzarella <sgarzare@redhat.com>
To:     Eugenio =?utf-8?B?UMOpcmV6?= <eperezma@redhat.com>
Cc:     netdev@vger.kernel.org, Jason Wang <jasowang@redhat.com>,
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Subject: Re: [PATCH v6 1/4] vdpa: Add suspend operation
Message-ID: <20220628133955.sj32sfounu4byggl@sgarzare-redhat>
References: <20220623160738.632852-1-eperezma@redhat.com>
 <20220623160738.632852-2-eperezma@redhat.com>
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In-Reply-To: <20220623160738.632852-2-eperezma@redhat.com>
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On Thu, Jun 23, 2022 at 06:07:35PM +0200, Eugenio P?rez wrote:
>This operation is optional: It it's not implemented, backend feature bit
>will not be exposed.
>
>Signed-off-by: Eugenio P?rez <eperezma@redhat.com>
>---
> include/linux/vdpa.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
>diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
>index 7b4a13d3bd91..d282f464d2f1 100644
>--- a/include/linux/vdpa.h
>+++ b/include/linux/vdpa.h
>@@ -218,6 +218,9 @@ struct vdpa_map_file {
>  * @reset:			Reset device
>  *				@vdev: vdpa device
>  *				Returns integer: success (0) or error (< 0)
>+ * @suspend:			Suspend or resume the device (optional)
                                            ^
IIUC we removed the resume operation (that should be done with reset),
so should we update this documentation?

Thanks,
Stefano

>+ *				@vdev: vdpa device
>+ *				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
>@@ -319,6 +322,7 @@ 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);
> 	size_t (*get_config_size)(struct vdpa_device *vdev);
> 	void (*get_config)(struct vdpa_device *vdev, unsigned int offset,
> 			   void *buf, unsigned int len);
>-- 
>2.31.1
>