diff mbox series

[vfio,02/11] virtio: Define feature bit for administration virtqueue

Message ID 20230921124040.145386-3-yishaih@nvidia.com (mailing list archive)
State New, archived
Headers show
Series Introduce a vfio driver over virtio devices | expand

Commit Message

Yishai Hadas Sept. 21, 2023, 12:40 p.m. UTC 
From: Feng Liu <feliu@nvidia.com>

Introduce VIRTIO_F_ADMIN_VQ which is used for administration virtqueue
support.

Signed-off-by: Feng Liu <feliu@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
---
 include/uapi/linux/virtio_config.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
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Patch

diff --git a/include/uapi/linux/virtio_config.h b/include/uapi/linux/virtio_config.h
index 2c712c654165..09d694968b14 100644
--- a/include/uapi/linux/virtio_config.h
+++ b/include/uapi/linux/virtio_config.h
@@ -52,7 +52,7 @@ 
  * rest are per-device feature bits.
  */
 #define VIRTIO_TRANSPORT_F_START	28
-#define VIRTIO_TRANSPORT_F_END		41
+#define VIRTIO_TRANSPORT_F_END		42
 
 #ifndef VIRTIO_CONFIG_NO_LEGACY
 /* Do we get callbacks when the ring is completely used, even if we've
@@ -109,4 +109,10 @@ 
  * This feature indicates that the driver can reset a queue individually.
  */
 #define VIRTIO_F_RING_RESET		40
+
+/*
+ * This feature indicates that the device support administration virtqueues.
+ */
+#define VIRTIO_F_ADMIN_VQ		41
+
 #endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */