[RFC virtio-next 2/4] include/vring.h: Add support for reversed vritio rings.
From: Sjur Brændeland <hidden>
Date: 2012-10-31 22:48:47
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Subsystem:
the rest, virtio core · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
From: Sjur Brændeland <redacted> Add last avilable index to the vring_virtqueue structure, this is done to prepare for implementation of the reversed vring. Signed-off-by: Sjur Brændeland <redacted> --- drivers/virtio/vring.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/virtio/vring.h b/drivers/virtio/vring.h
index b997fc3..3b53961 100644
--- a/drivers/virtio/vring.h
+++ b/drivers/virtio/vring.h@@ -51,6 +51,9 @@ struct vring_virtqueue /* Last used index we've seen. */ u16 last_used_idx; + /* Last avail index seen. NOTE: Only used for reversed rings.*/ + u16 last_avail_idx; + /* How to notify other side. FIXME: commonalize hcalls! */ void (*notify)(struct virtqueue *vq);
--
1.7.9.5
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