Index: head/sys/dev/hyperv/netvsc/hv_net_vsc.h
===================================================================
--- head/sys/dev/hyperv/netvsc/hv_net_vsc.h
+++ head/sys/dev/hyperv/netvsc/hv_net_vsc.h
@@ -1000,10 +1000,11 @@
 
 struct hn_rx_ring {
 	struct ifnet	*hn_ifp;
-	struct lro_ctrl	hn_lro;
+	int		hn_rx_idx;
 
 	/* Trust csum verification on host side */
 	int		hn_trust_hcsum;	/* HN_TRUST_HCSUM_ */
+	struct lro_ctrl	hn_lro;
 
 	u_long		hn_csum_ip;
 	u_long		hn_csum_tcp;
Index: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
===================================================================
--- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
+++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
@@ -1287,6 +1287,9 @@
 		m_new->m_flags |= M_VLANTAG;
 	}
 
+	m_new->m_pkthdr.flowid = rxr->hn_rx_idx;
+	M_HASHTYPE_SET(m_new, M_HASHTYPE_OPAQUE);
+
 	/*
 	 * Note:  Moved RX completion back to hv_nv_on_receive() so all
 	 * messages (not just data messages) will trigger a response.
@@ -2037,6 +2040,7 @@
 		if (hn_trust_hostip)
 			rxr->hn_trust_hcsum |= HN_TRUST_HCSUM_IP;
 		rxr->hn_ifp = sc->hn_ifp;
+		rxr->hn_rx_idx = i;
 
 		/*
 		 * Initialize LRO.
@@ -2567,10 +2571,14 @@
 {
 	struct hn_softc *sc = ifp->if_softc;
 	struct hn_tx_ring *txr;
-	int error;
+	int error, idx = 0;
 
-	/* TODO: vRSS, TX ring selection */
-	txr = &sc->hn_tx_ring[0];
+	/*
+	 * Select the TX ring based on flowid
+	 */
+	if (M_HASHTYPE_GET(m) != M_HASHTYPE_NONE)
+		idx = m->m_pkthdr.flowid % sc->hn_tx_ring_cnt;
+	txr = &sc->hn_tx_ring[idx];
 
 	error = drbr_enqueue(ifp, txr->hn_mbuf_br, m);
 	if (error)