From: Zhu Lingshan Date: Fri, 31 Jul 2020 06:55:30 +0000 (+0800) Subject: vDPA: add get_vq_irq() in vdpa_config_ops X-Git-Tag: v5.9-rc1~58^2~25 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7164675ab5caf46867d6a5448f4ff3af92d80a30;p=thirdparty%2Fkernel%2Fstable.git vDPA: add get_vq_irq() in vdpa_config_ops 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 Suggested-by: Jason Wang Link: https://lore.kernel.org/r/20200731065533.4144-4-lingshan.zhu@intel.com Signed-off-by: Michael S. Tsirkin --- diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 29b8296f14147..5c530a64aa066 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -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);