On 2020/7/28 下午12:24, Zhu Lingshan wrote:
This commit adds a new function get_vq_irq() in struct
vdpa_config_ops, which will return the irq number of a
virtqueue.
Signed-off-by: Zhu Lingshan <lingshan.zhu@xxxxxxxxx>
Suggested-by: Jason Wang <jasowang@xxxxxxxxxx>
---
include/linux/vdpa.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 239db794357c..cebc79173aaa 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -87,6 +87,11 @@ struct vdpa_device {
* @vdev: vdpa device
* @idx: virtqueue index
* Returns the notifcation area
+ * @get_vq_irq: Get the irq number of a virtqueue
+ * @vdev: vdpa device
+ * @idx: virtqueue index
+ * Returns u32: irq number of a virtqueue,
+ * -EINVAL if no irq assigned.
I think we can not get -EINVAL since the function will return a u32.
Thanks
* @get_vq_align: Get the virtqueue align requirement
* for the device
* @vdev: vdpa device
@@ -178,6 +183,7 @@ struct vdpa_config_ops {
u64 (*get_vq_state)(struct vdpa_device *vdev, u16 idx);
struct vdpa_notification_area
(*get_vq_notification)(struct vdpa_device *vdev, u16 idx);
+ u32 (*get_vq_irq)(struct vdpa_device *vdv, u16 idx);
/* Device ops */
u32 (*get_vq_align)(struct vdpa_device *vdev);
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