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authorEli Cohen <elic@nvidia.com>2022-07-14 14:39:26 +0300
committerMichael S. Tsirkin <mst@redhat.com>2022-08-11 11:26:08 +0300
commitcae15c2ed8e6e058bd5e32de292ab7982640161e (patch)
tree152e65deb350e6fc4d7259e79d9a9893d9baa2c8 /include
parentad146355bfad627bd0717ece73997c6c93b1b82e (diff)
vdpa/mlx5: Implement susupend virtqueue callback
Implement the suspend callback allowing to suspend the virtqueues so they stop processing descriptors. This is required to allow to query a consistent state of the virtqueue while live migration is taking place. Signed-off-by: Eli Cohen <elic@nvidia.com> Message-Id: <20220714113927.85729-2-elic@nvidia.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mlx5/mlx5_ifc_vdpa.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/mlx5/mlx5_ifc_vdpa.h b/include/linux/mlx5/mlx5_ifc_vdpa.h
index 4414ed5b6ed2..9becdc3fa503 100644
--- a/include/linux/mlx5/mlx5_ifc_vdpa.h
+++ b/include/linux/mlx5/mlx5_ifc_vdpa.h
@@ -150,6 +150,14 @@ enum {
MLX5_VIRTIO_NET_Q_OBJECT_STATE_ERR = 0x3,
};
+/* This indicates that the object was not created or has already
+ * been desroyed. It is very safe to assume that this object will never
+ * have so many states
+ */
+enum {
+ MLX5_VIRTIO_NET_Q_OBJECT_NONE = 0xffffffff
+};
+
enum {
MLX5_RQTC_LIST_Q_TYPE_RQ = 0x0,
MLX5_RQTC_LIST_Q_TYPE_VIRTIO_NET_Q = 0x1,