[Qemu-devel] [PATCH] virtio-net: Remove RX_EXTRA feature

[Alex Williamson <alex.williamson@hp.com>]

No need to use a feature bit to identify the RX modes.  The guest
will get an error back if the backend doesn't support these controls.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
---

 hw/virtio-net.c |    3 +--
 hw/virtio-net.h |    8 ++++----
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index d584287..fd5753a 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -122,8 +122,7 @@ static uint32_t virtio_net_get_features(VirtIODevice *vdev)
                         (1 << VIRTIO_NET_F_STATUS) |
                         (1 << VIRTIO_NET_F_CTRL_VQ) |
                         (1 << VIRTIO_NET_F_CTRL_RX) |
-                        (1 << VIRTIO_NET_F_CTRL_VLAN) |
-                        (1 << VIRTIO_NET_F_CTRL_RX_EXTRA);
+                        (1 << VIRTIO_NET_F_CTRL_VLAN);
 
     return features;
 }
diff --git a/hw/virtio-net.h b/hw/virtio-net.h
index 2085181..9bc4210 100644
--- a/hw/virtio-net.h
+++ b/hw/virtio-net.h
@@ -43,7 +43,6 @@
 #define VIRTIO_NET_F_CTRL_VQ    17      /* Control channel available */
 #define VIRTIO_NET_F_CTRL_RX    18      /* Control channel RX mode support */
 #define VIRTIO_NET_F_CTRL_VLAN  19      /* Control channel VLAN filtering */
-#define VIRTIO_NET_F_CTRL_RX_EXTRA 20   /* Extra RX mode control support */
 
 #define VIRTIO_NET_S_LINK_UP    1       /* Link is up */
 
@@ -106,9 +105,10 @@ typedef uint8_t virtio_net_ctrl_ack;
 /*
  * Control the RX mode, ie. promisucous, allmulti, etc...
  * All commands require an "out" sg entry containing a 1 byte
- * state value, zero = disable, non-zero = enable.  Commands
- * 0 and 1 are supported with the VIRTIO_NET_F_CTRL_RX feature.
- * Commands 2-5 are added with VIRTIO_NET_F_CTRL_RX_EXTRA.
+ * state value, zero = disable, non-zero = enable.  This group
+ * of commands are available with the VIRTIO_NET_F_CTRL_RX
+ * feature.  Individual commands may return VIRTIO_NET_ERR if
+ * unsupported by the host.
  */
 #define VIRTIO_NET_CTRL_RX_MODE    0
  #define VIRTIO_NET_CTRL_RX_MODE_PROMISC      0