Index: if_ixgb.c
===================================================================
RCS file: /data/ncvs/freebsd/src/sys/dev/ixgb/if_ixgb.c,v
retrieving revision 1.22
diff -u -r1.22 if_ixgb.c
--- if_ixgb.c	4 Mar 2007 03:38:07 -0000	1.22
+++ if_ixgb.c	13 Mar 2007 22:19:35 -0000
@@ -459,15 +459,15 @@
 	if (!adapter->link_active)
 		return;
 
-	while (ifp->if_snd.ifq_head != NULL) {
-		IF_DEQUEUE(&ifp->if_snd, m_head);
+	while (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) {
+		IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
 
 		if (m_head == NULL)
 			break;
 
 		if (ixgb_encap(adapter, m_head)) {
 			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
-			IF_PREPEND(&ifp->if_snd, m_head);
+			IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
 			break;
 		}
 		/* Send a copy of the frame to the BPF listener */
@@ -769,7 +769,7 @@
 	ixgb_process_receive_interrupts(adapter, count);
 	ixgb_clean_transmit_interrupts(adapter);
 
-	if (ifp->if_snd.ifq_head != NULL)
+	if (ifp->if_flags & IFF_RUNNING && !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
 		ixgb_start_locked(ifp);
 }
 
@@ -851,7 +851,7 @@
 		IXGB_WRITE_REG(&adapter->hw, IMC, IXGB_INT_RXDMT0);
 		IXGB_WRITE_REG(&adapter->hw, IMS, IXGB_INT_RXDMT0);
 	}
-	if (ifp->if_drv_flags & IFF_DRV_RUNNING && ifp->if_snd.ifq_head != NULL)
+	if (ifp->if_flags & IFF_RUNNING && !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
 		ixgb_start_locked(ifp);
 
 	IXGB_UNLOCK(adapter);
@@ -1359,7 +1359,9 @@
 	ifp->if_ioctl = ixgb_ioctl;
 	ifp->if_start = ixgb_start;
 	ifp->if_watchdog = ixgb_watchdog;
-	ifp->if_snd.ifq_maxlen = adapter->num_tx_desc - 1;
+	IFQ_SET_MAXLEN(&ifp->if_snd, adapter->num_tx_desc - 1);
+	ifp->if_snd.ifq_drv_maxlen = adapter->num_tx_desc - 1;
+	IFQ_SET_READY(&ifq->if_snd);
 
 #if __FreeBSD_version < 500000
 	ether_ifattach(ifp, ETHER_BPF_SUPPORTED);