在 2022/6/29 14:56, 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
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/linux/virtio_pci_modern.h | 2 ++
include/uapi/linux/virtio_pci.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/include/linux/virtio_pci_modern.h b/include/linux/virtio_pci_modern.h
index c4f7ffbacb4e..9f31dde46f57 100644
--- a/include/linux/virtio_pci_modern.h
+++ b/include/linux/virtio_pci_modern.h
@@ -29,6 +29,8 @@ struct virtio_pci_common_cfg {
__le32 queue_avail_hi; /* read-write */
__le32 queue_used_lo; /* read-write */
__le32 queue_used_hi; /* read-write */
+ __le16 queue_notify_data; /* read-write */
+ __le16 padding;
};
As previous patch, I think it's better to simple embed the uAPI
structure here.
Thanks
struct virtio_pci_modern_device {
diff --git a/include/uapi/linux/virtio_pci.h b/include/uapi/linux/virtio_pci.h
index 247ec42af2c8..748b3eb62d2f 100644
--- a/include/uapi/linux/virtio_pci.h
+++ b/include/uapi/linux/virtio_pci.h
@@ -176,6 +176,7 @@ struct virtio_pci_cfg_cap {
#define VIRTIO_PCI_COMMON_Q_AVAILHI 44
#define VIRTIO_PCI_COMMON_Q_USEDLO 48
#define VIRTIO_PCI_COMMON_Q_USEDHI 52
+#define VIRTIO_PCI_COMMON_Q_NDATA 56
#endif /* VIRTIO_PCI_NO_MODERN */
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