[PATCH 4/4] net/iavf: enable UDP fragmentation offload

[Zhichao Zeng]

This commit enables transmit segmentation offload for UDP, including both
non-tunneled and tunneled packets.

The command "tso set <tso_segsz> <port_id>" or
"tunnel_tso set <tso_segsz> <port_id>" is used to enable UFO.

Signed-off-by: Zhichao Zeng <zhichaox.zeng at intel.com>
---
 drivers/net/iavf/iavf_rxtx.c | 2 +-
 drivers/net/iavf/iavf_rxtx.h | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/iavf/iavf_rxtx.c b/drivers/net/iavf/iavf_rxtx.c
index b1d0fbceb6..8eca8aba3e 100644
--- a/drivers/net/iavf/iavf_rxtx.c
+++ b/drivers/net/iavf/iavf_rxtx.c
@@ -3622,7 +3622,7 @@ iavf_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
 		ol_flags = m->ol_flags;
 
 		/* Check condition for nb_segs > IAVF_TX_MAX_MTU_SEG. */
-		if (!(ol_flags & RTE_MBUF_F_TX_TCP_SEG)) {
+		if (!(ol_flags & (RTE_MBUF_F_TX_TCP_SEG | RTE_MBUF_F_TX_UDP_SEG))) {
 			if (m->nb_segs > IAVF_TX_MAX_MTU_SEG) {
 				rte_errno = EINVAL;
 				return i;
diff --git a/drivers/net/iavf/iavf_rxtx.h b/drivers/net/iavf/iavf_rxtx.h
index 09e2127db0..5096868d87 100644
--- a/drivers/net/iavf/iavf_rxtx.h
+++ b/drivers/net/iavf/iavf_rxtx.h
@@ -73,6 +73,7 @@
 		RTE_MBUF_F_TX_IP_CKSUM |		 \
 		RTE_MBUF_F_TX_L4_MASK |		 \
 		RTE_MBUF_F_TX_TCP_SEG |          \
+		RTE_MBUF_F_TX_UDP_SEG |          \
 		RTE_MBUF_F_TX_OUTER_IP_CKSUM |   \
 		RTE_MBUF_F_TX_OUTER_UDP_CKSUM)
 
@@ -85,6 +86,7 @@
 		RTE_MBUF_F_TX_IP_CKSUM |		 \
 		RTE_MBUF_F_TX_L4_MASK |		 \
 		RTE_MBUF_F_TX_TCP_SEG |		 \
+		RTE_MBUF_F_TX_UDP_SEG |      \
 		RTE_MBUF_F_TX_TUNNEL_MASK |	\
 		RTE_MBUF_F_TX_OUTER_IP_CKSUM |  \
 		RTE_MBUF_F_TX_OUTER_UDP_CKSUM | \
-- 
2.25.1