Thread (72 messages) 72 messages, 4 authors, 2022-03-11

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

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STALE1689d SUPERSEDED

From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Date: 2022-03-08 12:35:31
Also in: bpf, kvm, linux-remoteproc, linux-s390, linux-um, netdev, platform-driver-x86
Subsystem: the rest, virtio core · Maintainers: Linus Torvalds, "Michael S. Tsirkin", Jason Wang, Eugenio Pérez

Revision v7 of 12 in this series.

Revisions (12)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]
  6. v6 [diff vs current]
  7. v7 current
  8. v10 [diff vs current]
  9. v11 [diff vs current]
  10. v12 [diff vs current]
  11. v13 [diff vs current]
  12. v14 [diff vs current]
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@linux.alibaba.com>
---
 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;
-- 
2.31.0

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