Messages in this thread Patch in this message |  | | From | Eli Cohen <> | Subject | RE: [PATCH 2/5] vdpa: introduce get_vq_dma_device() | Date | Sun, 15 Jan 2023 11:06:30 +0000 |
| |
> From: Jason Wang <jasowang@redhat.com> > Sent: Wednesday, 11 January 2023 8:28 > To: mst@redhat.com; jasowang@redhat.com > Cc: Eli Cohen <elic@nvidia.com>; gdawar@amd.com; > virtualization@lists.linux-foundation.org; linux-kernel@vger.kernel.org; > tanuj.kamde@amd.com > Subject: [PATCH 2/5] vdpa: introduce get_vq_dma_device() > > This patch introduces a new method to query the dma device that is use > for a specific virtqueue. > > Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com> Tested-by: <elic@nvidia.com> > --- > include/linux/vdpa.h | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h > index 6d0f5e4e82c2..3ec13aee35f5 100644 > --- a/include/linux/vdpa.h > +++ b/include/linux/vdpa.h > @@ -282,6 +282,11 @@ struct vdpa_map_file { > * @iova: iova to be unmapped > * @size: size of the area > * Returns integer: success (0) or error (< 0) > + * @get_vq_dma_dev: Get the dma device for a specific > + * virtqueue (optional) > + * @vdev: vdpa device > + * @idx: virtqueue index > + * Returns pointer to structure device or error > (NULL) > * @free: Free resources that belongs to vDPA > (optional) > * @vdev: vdpa device > */ > @@ -341,6 +346,7 @@ struct vdpa_config_ops { > u64 iova, u64 size); > int (*set_group_asid)(struct vdpa_device *vdev, unsigned int group, > unsigned int asid); > + struct device *(*get_vq_dma_dev)(struct vdpa_device *vdev, u16 idx); > > /* Free device resources */ > void (*free)(struct vdpa_device *vdev); > -- > 2.25.1
|  |