diff -r 9a3eb754fe2b sys/dev/virtio/network/if_vtnet.c
--- a/sys/dev/virtio/network/if_vtnet.c	Fri Feb 26 16:18:47 2016 +0000
+++ b/sys/dev/virtio/network/if_vtnet.c	Fri Feb 26 14:03:46 2016 -0800
@@ -653,6 +653,13 @@
 	} else
 		max_pairs = 1;

+	/*
+	 * This value needs to be saved before we limit it below because
+	 * the control virtqueue is located after all the virtqueues the
+	 * device advertises support for.
+	 */
+	sc->vtnet_device_max_vq_pairs = max_pairs;
+
 	if (max_pairs > 1) {
 		/*
 		 * Limit the maximum number of queue pairs to the number of
@@ -738,7 +745,7 @@
 {
 	int i, npairs, error;

-	npairs = sc->vtnet_max_vq_pairs;
+	npairs = sc->vtnet_device_max_vq_pairs;

 	sc->vtnet_rxqs = malloc(sizeof(struct vtnet_rxq) * npairs, M_DEVBUF,
 	    M_NOWAIT | M_ZERO);
@@ -806,14 +813,14 @@
 	int i;

 	if (sc->vtnet_rxqs != NULL) {
-		for (i = 0; i < sc->vtnet_max_vq_pairs; i++)
+		for (i = 0; i < sc->vtnet_device_max_vq_pairs; i++)
 			vtnet_destroy_rxq(&sc->vtnet_rxqs[i]);
 		free(sc->vtnet_rxqs, M_DEVBUF);
 		sc->vtnet_rxqs = NULL;
 	}

 	if (sc->vtnet_txqs != NULL) {
-		for (i = 0; i < sc->vtnet_max_vq_pairs; i++)
+		for (i = 0; i < sc->vtnet_device_max_vq_pairs; i++)
 			vtnet_destroy_txq(&sc->vtnet_txqs[i]);
 		free(sc->vtnet_txqs, M_DEVBUF);
 		sc->vtnet_txqs = NULL;
@@ -868,7 +875,7 @@
 	dev = sc->vtnet_dev;
 	flags = 0;

-	nvqs = sc->vtnet_max_vq_pairs * 2;
+	nvqs = sc->vtnet_device_max_vq_pairs * 2;
 	if (sc->vtnet_flags & VTNET_FLAG_CTRL_VQ)
 		nvqs++;

@@ -876,7 +883,7 @@
 	if (info == NULL)
 		return (ENOMEM);

-	for (i = 0, idx = 0; i < sc->vtnet_max_vq_pairs; i++, idx+=2) {
+	for (i = 0, idx = 0; i < sc->vtnet_device_max_vq_pairs; i++, idx+=2) {
 		rxq = &sc->vtnet_rxqs[i];
 		VQ_ALLOC_INFO_INIT(&info[idx], sc->vtnet_rx_nsegs,
 		    vtnet_rx_vq_intr, rxq, &rxq->vtnrx_vq,
@@ -3848,6 +3855,9 @@
 	tree = device_get_sysctl_tree(dev);
 	child = SYSCTL_CHILDREN(tree);

+	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "device_max_vq_pairs",
+	    CTLFLAG_RD, &sc->vtnet_device_max_vq_pairs, 0,
+	    "Device supported virtqueue pairs");
 	SYSCTL_ADD_INT(ctx, child, OID_AUTO, "max_vq_pairs",
 	    CTLFLAG_RD, &sc->vtnet_max_vq_pairs, 0,
 	    "Maximum number of supported virtqueue pairs");
diff -r 9a3eb754fe2b sys/dev/virtio/network/if_vtnetvar.h
--- a/sys/dev/virtio/network/if_vtnetvar.h	Fri Feb 26 16:18:47 2016 +0000
+++ b/sys/dev/virtio/network/if_vtnetvar.h	Fri Feb 26 14:03:46 2016 -0800
@@ -155,6 +155,7 @@
 	int			 vtnet_if_flags;
 	int			 vtnet_act_vq_pairs;
 	int			 vtnet_max_vq_pairs;
+	int			 vtnet_device_max_vq_pairs;

 	struct virtqueue	*vtnet_ctrl_vq;
 	struct vtnet_mac_filter	*vtnet_mac_filter;