net/iavf: fix segmentation offload condition

[ upstream commit ff8b8bc ]

Apply segmentation offload when requested for non tunneled
packets e.g. IPsec transport mode.

Fixes: 1e728b0 ("net/iavf: rework Tx path")

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Reviewed-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/net/iavf/iavf_rxtx.c

@@ -2464,10 +2464,9 @@ iavf_fill_data_desc(volatile struct iavf_tx_desc *desc,
 	desc->buffer_addr = rte_mbuf_data_iova(m);
 
 	/* calculate data buffer size less set header lengths */
-	if ((m->ol_flags & RTE_MBUF_F_TX_TUNNEL_MASK) &&
-			(m->ol_flags & (RTE_MBUF_F_TX_TCP_SEG |
-					RTE_MBUF_F_TX_UDP_SEG))) {
-		hdrlen += m->outer_l3_len;
+	if (m->ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG)) {
+		if (m->ol_flags & RTE_MBUF_F_TX_TUNNEL_MASK)
+			hdrlen += m->outer_l3_len;
 		if (m->ol_flags & RTE_MBUF_F_TX_L4_MASK)
 			hdrlen += m->l3_len + m->l4_len;
 		else