[dpdk-dev] [PATCH] app/testpmd: fix set L4 len for UDP packets

[Raslan Darawsheh]

testpmd only sets the L4 len in case of TCP packets.
some PMD's like tap rely on mbuf meta data to calculate csum

this will set the L4 len for UDP packets same as TCP

Fixes: 160c3dc9 ("app/testpmd: introduce IP parsing functions in csum fwd 
engine")
Signed-off-by: Raslan Darawsheh <rasl...@mellanox.com>
Signed-off-by: Ophir Munk <ophi...@mellanox.com>
CC: sta...@dpdk.org
---
 app/test-pmd/csumonly.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/app/test-pmd/csumonly.c b/app/test-pmd/csumonly.c
index dce4b9b..ffeee20 100644
--- a/app/test-pmd/csumonly.c
+++ b/app/test-pmd/csumonly.c
@@ -111,7 +111,9 @@ parse_ipv4(struct ipv4_hdr *ipv4_hdr, struct 
testpmd_offload_info *info)
        if (info->l4_proto == IPPROTO_TCP) {
                tcp_hdr = (struct tcp_hdr *)((char *)ipv4_hdr + info->l3_len);
                info->l4_len = (tcp_hdr->data_off & 0xf0) >> 2;
-       } else
+       } else if (info->l4_proto == IPPROTO_UDP)
+               info->l4_len = sizeof(struct udp_hdr);
+       else
                info->l4_len = 0;
 }
 
@@ -128,7 +130,9 @@ parse_ipv6(struct ipv6_hdr *ipv6_hdr, struct 
testpmd_offload_info *info)
        if (info->l4_proto == IPPROTO_TCP) {
                tcp_hdr = (struct tcp_hdr *)((char *)ipv6_hdr + info->l3_len);
                info->l4_len = (tcp_hdr->data_off & 0xf0) >> 2;
-       } else
+       } else if (info->l4_proto == IPPROTO_UDP)
+               info->l4_len = sizeof(struct udp_hdr);
+       else
                info->l4_len = 0;
 }
 
-- 
2.7.4