File _service:obs_scm:0137-reduce-pbuf-pool-size.patch of Package lwip

From 98e846b1bc4f4c304bd08dbce0d92467f01a4196 Mon Sep 17 00:00:00 2001
From: jiangheng <jiangheng14@huawei.com>
Date: Thu, 13 Jun 2024 08:57:50 +0800
Subject: [PATCH] reduce pbuf pool size

---
 src/core/init.c        | 4 ++++
 src/include/lwipopts.h | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/core/init.c b/src/core/init.c
index c0aaf45..821c6c7 100644
--- a/src/core/init.c
+++ b/src/core/init.c
@@ -321,9 +321,13 @@ PACK_STRUCT_END
 #if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (PBUF_POOL_BUFSIZE <= (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))
 #error "lwip_sanity_check: WARNING: PBUF_POOL_BUFSIZE does not provide enough space for protocol headers. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
 #endif
+
+#if !GAZELLE_ENABLE
 #if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (TCP_WND > (PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))))
 #error "lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - protocol headers). If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
 #endif
+#endif
+
 #if TCP_WND < TCP_MSS
 #error "lwip_sanity_check: WARNING: TCP_WND is smaller than MSS. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
 #endif
diff --git a/src/include/lwipopts.h b/src/include/lwipopts.h
index 4655388..cb3154a 100644
--- a/src/include/lwipopts.h
+++ b/src/include/lwipopts.h
@@ -134,7 +134,7 @@
 
 #define MEMP_NUM_SYS_MBOX (GAZELLE_MAX_CLIENTS + GAZELLE_RESERVED_CLIENTS)
 
-#define PBUF_POOL_SIZE (GAZELLE_MAX_CLIENTS * 2)
+#define PBUF_POOL_SIZE (1024)
 
 /* we use PBUF_POOL instead of PBUF_RAM in tcp_write, so reduce PBUF_RAM size,
  * and do NOT let PBUF_POOL_BUFSIZE less then TCP_MSS
-- 
2.33.0