Re: [PATCH v7 01/26] virtio_pci: struct virtio_pci_common_cfg add queue_notify_data

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在 2022/3/8 下午8:34, Xuan Zhuo 写道:
Add queue_notify_data in struct virtio_pci_common_cfg, which comes from
here https://github.com/oasis-tcs/virtio-spec/issues/89

For not breaks uABI, add a new struct virtio_pci_common_cfg_notify.

Since I want to add queue_reset after queue_notify_data, I submitted
this patch first.

Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>


Acked-by: Jason Wang <jasowang@xxxxxxxxxx>


---
  include/uapi/linux/virtio_pci.h | 7 +++++++
  1 file changed, 7 insertions(+)

diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
index 3a86f36d7e3d..22bec9bd0dfc 100644
--- a/include/uapi/linux/virtio_pci.h
+++ b/include/uapi/linux/virtio_pci.h
@@ -166,6 +166,13 @@ struct virtio_pci_common_cfg {
  	__le32 queue_used_hi;		/* read-write */
  };
+struct virtio_pci_common_cfg_notify {
+	struct virtio_pci_common_cfg cfg;
+
+	__le16 queue_notify_data;	/* read-write */
+	__le16 padding;
+};
+
  /* Fields in VIRTIO_PCI_CAP_PCI_CFG: */
  struct virtio_pci_cfg_cap {
  	struct virtio_pci_cap cap;




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