add udp cksum in lwip

(cherry picked from commit 6843c82bf7e0d2fdac567be6ac3ab9c8652f345d)

0068-enable-UDP-CKSUM-in-lwip.patch

@@ -0,0 +1,42 @@
+From 73d78d322ba8bb997d74c92727d1ec8b8640607f Mon Sep 17 00:00:00 2001
+From: kircher <majun65@huawei.com>
+Date: Wed, 21 Jun 2023 16:59:34 +0800
+Subject: [PATCH] enable UDP CKSUM in lwip
+
+---
+ src/include/dpdk_cksum.h | 1 +
+ src/include/lwipopts.h   | 6 ++++++
+ 2 files changed, 7 insertions(+)
+
+diff --git a/src/include/dpdk_cksum.h b/src/include/dpdk_cksum.h
+index b48c926..2c5b31e 100644
+--- a/src/include/dpdk_cksum.h
++++ b/src/include/dpdk_cksum.h
+@@ -87,6 +87,7 @@ static inline void tcph_cksum_set(struct pbuf *p, u16_t len) {
+ 
+ static inline void udph_cksum_set(struct pbuf *p, u16_t len) {
+     p->l4_len = len;
++    p->ol_flags |= RTE_MBUF_F_TX_UDP_CKSUM;
+ }
+ 
+ static inline u16_t ip_chksum_pseudo_offload(u8_t proto, u16_t proto_len,
+diff --git a/src/include/lwipopts.h b/src/include/lwipopts.h
+index f0df0e3..2ba1e4c 100644
+--- a/src/include/lwipopts.h
++++ b/src/include/lwipopts.h
+@@ -180,6 +180,12 @@
+    ---------------------------------
+ */
+ #define LWIP_UDP 1
++
++#define UDP_HLEN 8
++
++#define MEMP_NUM_UDP_PCB 16
++#define MEMP_NUM_IGMP_GROUP 16
++
+ #define DEFAULT_UDP_RECVMBOX_SIZE 4096
+ 
+ 
+-- 
+2.33.0
+

lwip.spec

@@ -4,7 +4,7 @@
 Summary: lwip is a small independent implementation of the TCP/IP protocol suite
 Name:    lwip
 Version: 2.1.3
-Release: 72
+Release: 73
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@@ -79,6 +79,7 @@ Patch9063:  0064-fix-udp-send-recv-in-multiple-queue.patch
 Patch9064:  0065-fix-udp-recvmbox-size-not-set.patch
 Patch9065:  0066-adapt-to-dpdk-19.11-and-dpdk-21.11.patch
 Patch9066:  0067-fix-null-pointer-when-all-zero-address-listen.patch
+Patch9067:  0068-enable-UDP-CKSUM-in-lwip.patch
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -109,6 +110,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Wed Jun 21 2023 kircher <majun65@huawei.com> - 2.1.3-73
+- enable udp cksum in lwip
+
 * Thu Jun 15 2023 Lemmy Huang <huangliming5@huawei.com> - 2.1.3-72
 - fix null pointer when zero port listen