[dpdk-stable] [DPDK] app/testpmd: fix Tx checksum problem when TSO enabled

[dpdk-stable] [DPDK] app/testpmd: fix Tx checksum problem when TSO enabled

[Peng Huang]

This patch fixed the TX checksum value problem when enabled TSO in
tunnel packets, because outer UDP checksum calculation depend on
the TSO configuration.

depend on patch:
app/testpmd: enable GTP header parse and Tx checksum offload

Fixes: 0f62d63593ed ("app/testpmd: support tunneled TSO in checksum engine")
Cc: stable@dpdk.org

Signed-off-by: Peng Huang <peng.huang@intel.com>
---
 app/test-pmd/csumonly.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c
index e1cb7fb..a1775f4 100644
--- a/app/test-pmd/csumonly.c
+++ b/app/test-pmd/csumonly.c
@@ -478,6 +478,9 @@ struct simple_gre_hdr {
 	if (info->outer_l4_proto != IPPROTO_UDP)
 		return ol_flags;
 
+	if (tso_enabled)
+		ol_flags |= PKT_TX_TCP_SEG;
+
 	/* Skip SW outer UDP checksum generation if HW supports it */
 	if (tx_offloads & DEV_TX_OFFLOAD_OUTER_UDP_CKSUM) {
 		ol_flags |= PKT_TX_OUTER_UDP_CKSUM;
-- 
1.8.3.1