On Thu, Oct 25, 2018 at 05:22:37PM +0800, Tiwei Bie wrote:
On Wed, Oct 24, 2018 at 04:32:30PM +0200, Jens Freimann wrote:
Signed-off-by: Jens Freimann <jfreim...@redhat.com>
---
drivers/net/virtio/virtio_ring.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/virtio/virtio_ring.h b/drivers/net/virtio/virtio_ring.h
index e65da100b..f84ab5e34 100644
--- a/drivers/net/virtio/virtio_ring.h
+++ b/drivers/net/virtio/virtio_ring.h
@@ -15,7 +15,10 @@
#define VRING_DESC_F_WRITE 2
/* This means the buffer contains a list of buffer descriptors. */
#define VRING_DESC_F_INDIRECT 4
-
+/* This flag means the descriptor was made available by the driver */
+#define VRING_DESC_F_AVAIL(b) ((uint16_t)(b) << 7)
+/* This flag means the descriptor was used by the device */
+#define VRING_DESC_F_USED(b) ((uint16_t)(b) << 15)
Please add an empty line here.
ok
regards,
Jens
/* The Host uses this in used->flags to advise the Guest: don't kick me
* when you add a buffer. It's unreliable, so it's simply an
* optimization. Guest will still kick if it's out of buffers. */
--
2.17.1
