add pbuf lock when aggregate pbuf

(cherry picked from commit fdc3d67627df89ff7642565931658ca52d2a6503)

0055-add-pbuf-lock-when-aggregate-pbuf.patch

@@ -0,0 +1,46 @@
+From a9906aabda21b9d2912377352ef0058eb4fb76e0 Mon Sep 17 00:00:00 2001
+From: jiangheng <jiangheng14@huawei.com>
+Date: Mon, 13 Mar 2023 10:00:12 +0800
+Subject: [PATCH] add pbuf lock when aggregate pbuf
+
+---
+ src/include/lwip/pbuf.h | 3 ++-
+ src/include/lwipsock.h  | 3 +--
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/include/lwip/pbuf.h b/src/include/lwip/pbuf.h
+index a2e8e01..8807a49 100644
+--- a/src/include/lwip/pbuf.h
++++ b/src/include/lwip/pbuf.h
+@@ -231,9 +231,10 @@ struct pbuf {
+   u64_t l4_len:8;
+   u8_t header_off;
+   u8_t rexmit;
+-  u8_t in_write;
++  volatile u8_t allow_in;
+   u8_t head;
+   struct pbuf *last;
++  pthread_spinlock_t pbuf_lock;
+ #endif /* GAZELLE_ENABLE CHECKSUM_OFFLOAD_SWITCH */
+ 
+   /** In case the user needs to store data custom data on a pbuf */
+diff --git a/src/include/lwipsock.h b/src/include/lwipsock.h
+index 810e98f..7e16ec8 100644
+--- a/src/include/lwipsock.h
++++ b/src/include/lwipsock.h
+@@ -104,11 +104,10 @@ struct lwip_sock {
+ 
+   char pad1 __rte_cache_aligned;
+   /* app and stack thread all use */
+-  uint32_t in_send; /* avoid sock too much send rpc msg*/
++  uint32_t call_num; /* avoid sock too much send rpc msg*/
+   char pad2 __rte_cache_aligned;
+   /* stack thread all use */
+   struct list_node recv_list;
+-  struct list_node send_list;
+   struct pbuf *send_lastdata;
+   struct pbuf *send_pre_del;
+   sem_t snd_ring_sem;
+-- 
+2.29.0.windows.1
+

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: 45
+Release: 46
 License: BSD
 URL:     http://savannah.nongnu.org/projects/lwip/
 Source0: http://download.savannah.nongnu.org/releases/lwip/%{name}-%{version}.zip
@@ -66,6 +66,7 @@ Patch9050:  0051-lwip-add-need_tso_send.patch
 Patch9051:  0052-lwip_fnctl-only-support-F_SETFL-F_GETFL.patch
 Patch9052:  0053-cleancode-improve-lwipopts.h-readability.patch
 Patch9053:  0054-reduce-cpu-usage-when-send.patch
+Patch9054:  0055-add-pbuf-lock-when-aggregate-pbuf.patch
 
 BuildRequires: gcc-c++ dos2unix dpdk-devel
 
@@ -136,6 +137,7 @@ find %{_builddir}/%{name}-%{version} -type f -exec dos2unix -q {} \;
 %patch9051 -p1
 %patch9052 -p1
 %patch9053 -p1
+%patch9054 -p1
 
 %build
 cd %{_builddir}/%{name}-%{version}/src
@@ -151,6 +153,9 @@ cd %{_builddir}/%{name}-%{version}/src
 %{_libdir}/liblwip.a
 
 %changelog
+* Mon Mar 13 2023 jiangheng <jiangheng14@huawei.com> - 2.1.3-46
+- use pbuf lock when aggregate pbuf
+
 * Fri Mar 10 2023 jiangheng <jiangheng14@huawei.com> - 2.1.3-45
 - reduce cpu usage when send