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virtio: Define feature bit for administration virtqueue

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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>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Link: https://lore.kernel.org/r/20231219093247.170936-2-yishaih@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Feng Liu 2023-12-19 11:32:39 +02:00 committed by Alex Williamson
parent 33cc938e65
commit 838bebb4c9
1 changed files with 7 additions and 1 deletions
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8
include/uapi/linux/virtio_config.h
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@ -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
@ -114,4 +114,10 @@
* 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 */