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vDPA: add get_vq_irq() in vdpa_config_ops

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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@intel.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200731065533.4144-4-lingshan.zhu@intel.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Zhu Lingshan 2020-07-31 14:55:30 +08:00 committed by Michael S. Tsirkin
parent 2edd9cb79f
commit 7164675ab5
1 changed files with 7 additions and 0 deletions
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7
include/linux/vdpa.h
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@ -89,6 +89,12 @@ struct vdpa_device {
* @vdev: vdpa device
* @idx: virtqueue index
* Returns the notifcation area
* @get_vq_irq: Get the irq number of a virtqueue (optional,
* but must implemented if require vq irq offloading)
* @vdev: vdpa device
* @idx: virtqueue index
* Returns int: irq number of a virtqueue,
* negative number if no irq assigned.
* @get_vq_align: Get the virtqueue align requirement
* for the device
* @vdev: vdpa device
@ -180,6 +186,7 @@ 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);
int (*get_vq_irq)(struct vdpa_device *vdv, u16 idx);
/* Device ops */
u32 (*get_vq_align)(struct vdpa_device *vdev);