support udp pkglen > mtu: modify IP_REASS_MAX_PBUFS

0111-support-udp-pkglen-mtu-modify-IP_REASS_MAX_PBUFS.patch

@@ -0,0 +1,26 @@
+From b619f034c74d53bd6d8b572cb47fdb58fd90d7ae Mon Sep 17 00:00:00 2001
+From: yangchen <yangchen145@huawei.com>
+Date: Wed, 6 Mar 2024 11:00:56 +0800
+Subject: [PATCH] support udp pkglen > mtu: modify IP_REASS_MAX_PBUFS
+
+---
+ src/include/lwipopts.h | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/include/lwipopts.h b/src/include/lwipopts.h
+index 28b8aca..d067dea 100644
+--- a/src/include/lwipopts.h
++++ b/src/include/lwipopts.h
+@@ -171,6 +171,9 @@
+ 
+ #define IP_HLEN 20
+ 
++/* the max pbuf num of a udp pbuf chain is ((65535 + MBUF_MAX_DATA_LEN - 1) / MBUF_MAX_DATA_LEN) */
++#define IP_REASS_MAX_PBUFS       46
++
+ /*
+    -------------------------------------
+    ----------- IPv6  options -----------
+-- 
+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: 2.2.0
-Release: 3
+Release: 4
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@@ -122,6 +122,7 @@ Patch9106:  0107-fix-move-lpcb-to-the-front-of-list-error.patch
 Patch9107:  0108-fix-receive-fin-packet-process-error.patch
 Patch9108:  0109-support-udp-recv-zero-packets.patch
 Patch9109:  0110-adapt-lwip-2.2.0.patch
+Patch9110:  0111-support-udp-pkglen-mtu-modify-IP_REASS_MAX_PBUFS.patch
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -151,6 +152,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Tue Mar 5 2024 yangchen <yangchen145@huawei.com> - 2.2.0-4
+- support udp pkglen > mtu: modify IP_REASS_MAX_PBUFS
+
 * Tue Mar 5 2024 peng.zou <peng.zou@shingroup.cn> - 2.2.0-3
 - add ppc64le support