[Qemu-devel] [PATCH 7/7] virtio-net: Increase filter and control limits

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

Increase the size of the perfect filter table and control queue depth.
This should give us more headroom in the MAC filter and is known to be
needed by at least one guest user.  Increasing the control queue depth
allows a guest to feed several commands back to back if they so desire
rather than using the send and wait approach Linux uses.

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

 hw/virtio-net.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/virtio-net.c b/hw/virtio-net.c
index ecb58de..efaff04 100644
--- a/hw/virtio-net.c
+++ b/hw/virtio-net.c
@@ -18,7 +18,7 @@
 
 #define VIRTIO_NET_VM_VERSION    10
 
-#define MAC_TABLE_ENTRIES    32
+#define MAC_TABLE_ENTRIES    64
 #define MAX_VLAN    (1 << 12)   /* Per 802.1Q definition */
 
 typedef struct VirtIONet
@@ -685,7 +685,7 @@ VirtIODevice *virtio_net_init(DeviceState *dev)
     n->vdev.reset = virtio_net_reset;
     n->rx_vq = virtio_add_queue(&n->vdev, 256, virtio_net_handle_rx);
     n->tx_vq = virtio_add_queue(&n->vdev, 256, virtio_net_handle_tx);
-    n->ctrl_vq = virtio_add_queue(&n->vdev, 16, virtio_net_handle_ctrl);
+    n->ctrl_vq = virtio_add_queue(&n->vdev, 64, virtio_net_handle_ctrl);
     qdev_get_macaddr(dev, n->mac);
     n->status = VIRTIO_NET_S_LINK_UP;
     n->vc = qdev_get_vlan_client(dev,