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[参考译文] AM2732：添加基于 lwip 的以太网框架后、会发生 MSS_L2存储器溢出问题

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请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1461524/am2732-when-the-ethernet-framework-based-on-lwip-is-added-the-mss_l2-memory-overflow-problem-occurs

器件型号：AM2732

工具与软件：

大家好、专家：
现在我有一个问题、当我将 mmwave_mcuplus_sdk_04_04_01_02\mcu_plus_sdk_am273x_08_05_00_24\examples\networking\lwip\enet_cpsw_udpserver 可以成功发送和接收数据时、我在 PPP 内存中将其 mwave_mcuplus_sdk_04_01_02_02\mmwave_demo\mmwave_demo 函数和其他内存屏幕截图中成功发送和接收数据。 如果我只需要 UDP 函数、并且没有对 udpserver 演示进行大量修改、我还可以做些什么来减少内存占用、以便我的项目可以编译

此致、

MZB

  • 0
    TI__Guru**** 2478765 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    这是我自行修改 lwipopts.h 头文件后的内存占用情况、请帮助我检查是否正确 

    #ifndef LWIP_LWIPOPTS_H
#define LWIP_LWIPOPTS_H

#ifdef __cplusplus
extern "C"
{
#endif

#ifdef LWIP_OPTTEST_FILE
#include "lwipopts_test.h"
#else /* LWIP_OPTTEST_FILE */
#include "lwipopts_os.h"
#endif
#define LWIP_IPV4                  1    // Enable IPv4
#define LWIP_IPV6                  0    // Disable IPv6

#define LWIP_SOCKET                (NO_SYS==0)  // Enable lwIP socket support
#define LWIP_NETCONN               (NO_SYS==0)  // Enable lwIP netconn API support
#define LWIP_NETIF_API             (NO_SYS==0)  // Enable netif API

// Disable options related to TCP and other protocols
#define LWIP_TCP                   0    // Disable TCP
#define LWIP_ICMP                  0    // Disable ICMP
#define LWIP_IGMP                  0    // Disable IGMP
#define LWIP_DNS                   0    // Disable DNS
#define LWIP_MDNS_RESPONDER        0    // Disable mDNS
#define LWIP_ARP                   1    // Enable ARP

// Enable UDP
#define LWIP_UDP                   1    // Enable UDP
#define LWIP_UDPLITE               LWIP_UDP  // Enable UDPLITE

#define UDP_TTL                    255  // Set UDP TTL (Time-to-Live)

/* Memory options configuration */
#define MEM_ALIGNMENT              32U    // Set memory alignment
#define MEM_USE_POOLS              1     // Enable memory pools
#define MEMP_USE_CUSTOM_POOLS      1     // Use custom memory pools

#define PBUF_POOL_BUFSIZE          1536  // Set pbuf pool size

/* Other memory pool configurations */
#define MEMP_NUM_PBUF              128
#define MEMP_NUM_UDP_PCB           4
#define MEMP_NUM_TCPIP_MSG_API     128
#define MEMP_NUM_TCPIP_MSG_INPKT   128

/* ---------- Thread and synchronization options ---------- */
#define SYS_LIGHTWEIGHT_PROT       0  // Disable lightweight protection

/* ---------- TCP/IP configuration ---------- */
#define TCPIP_THREAD_STACKSIZE     (8 * 1024)  // TCP/IP thread stack size
#define DEFAULT_THREAD_STACKSIZE   (5 * 1024)  // Default thread stack size

/* ---------- UDP receive queue size ---------- */
#define DEFAULT_UDP_RECVMBOX_SIZE  320  // Set UDP receive queue size

/* ----------- Debug options ----------- */
#define LWIP_DEBUG                 0   // Disable debug output
#define LWIP_DBG_T                  LWIP_DBG_OFF  // Disable debugging

#define LWIP_NETIF_LINK_CALLBACK        1
#define LWIP_NETIF_STATUS_CALLBACK      1
#define LWIP_NETIF_EXT_STATUS_CALLBACK  1

#ifdef __cplusplus
}
#endif

#endif/* LWIP_LWIPOPTS_H */

  • 0
    TI__Guru**** 2478765 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    此外,我屏蔽了在 makefile 中不需要的 FTP 服务、mqqt 和其他源文件的编译,以及为什么图中出现错误,这让我感到困惑。 我注意到这些服务也会影响内存,这是问题的关键

  • 0
    TI__Guru**** 2478765 points
    请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

    在不更改原始 UDP 服务器演示代码的情况下、我修改了 makefile 和 lwipopts.h 标头以获得图中所示的内存优化。  是否有任何方法可以进一步优化 MSS_L2的存储器使用 

    #
# Auto generated makefile
#

export MCU_PLUS_SDK_PATH?=$(abspath ../../..)
include $(MCU_PLUS_SDK_PATH)/imports.mak

CG_TOOL_ROOT=$(CGT_TI_ARM_CLANG_PATH)

CC=$(CGT_TI_ARM_CLANG_PATH)/bin/tiarmclang
AR=$(CGT_TI_ARM_CLANG_PATH)/bin/tiarmar

PROFILE?=debug
ConfigName:=$(PROFILE)

LIBNAME:=lwip-freertos.am273x.r5f.ti-arm-clang.$(PROFILE).lib

FILES_common := \
    init.c \
	def.c \
    inet_chksum.c \
    ip.c \
    mem.c \
    memp.c \
    netif.c \
    pbuf.c \
    raw.c \
    netbuf.c \
    err.c \
    tcpip.c \
    stats.c \
    api_lib.c \
	api_msg.c \
    sys.c \
    timeouts.c \
    udp.c \
    etharp.c \
    ip4.c \
    ip4_addr.c \
    ip4_frag.c \
    ethernet.c \
    sys_arch.c \


FILES_PATH_common = \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/smtp \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/tftp \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/mqtt \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/tftp \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/netbiosns \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/mdns \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/altcp_tls \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/http \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/http/makefsdata \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/lwiperf \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/snmp \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/apps/sntp \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/netif \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/netif/ppp \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/netif/ppp/polarssl \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/core \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/core/ipv6 \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/core/ipv4 \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/api \
    ${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-port/freertos/src \

INCLUDES_common := \
    -I${CG_TOOL_ROOT}/include/c \
    -I${MCU_PLUS_SDK_PATH}/source \
    -I${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-stack/src/include \
    -I${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-port/include \
    -I${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-port/freertos/include \
    -I${MCU_PLUS_SDK_PATH}/source/kernel/freertos/FreeRTOS-Kernel/include \
    -I${MCU_PLUS_SDK_PATH}/source/kernel/freertos/portable/TI_ARM_CLANG/ARM_CR5F \
    -I${MCU_PLUS_SDK_PATH}/source/networking/lwip/lwip-config/am273x \
    -I${MCU_PLUS_SDK_PATH}/source/kernel/freertos/config/am273x/r5f \

DEFINES_common := \
    -DSOC_AM273X \

CFLAGS_common := \
    -mcpu=cortex-r5 \
    -mfloat-abi=hard \
    -mfpu=vfpv3-d16 \
    -mthumb \
    -Wall \
    -Werror \
    -g \
    -Wno-gnu-variable-sized-type-not-at-end \
    -Wno-unused-function \
    -Wno-extra \
    -Wvisibility \
    -fno-strict-aliasing \

CFLAGS_release := \
    -Os \
    -Oz \
    -flto \

CFLAGS_cpp_common := \
    -Wno-c99-designator \
    -Wno-extern-c-compat \
    -Wno-c++11-narrowing \
    -Wno-reorder-init-list \
    -Wno-deprecated-register \
    -Wno-writable-strings \
    -Wno-enum-compare \
    -Wno-reserved-user-defined-literal \
    -Wno-unused-const-variable \
    -x c++ \

CFLAGS_debug := \
    -D_DEBUG_=1 \

ARFLAGS_common := \
    rc \

FILES := $(FILES_common) $(FILES_$(PROFILE))
ASMFILES := $(ASMFILES_common) $(ASMFILES_$(PROFILE))
FILES_PATH := $(FILES_PATH_common) $(FILES_PATH_$(PROFILE))
CFLAGS := $(CFLAGS_common) $(CFLAGS_$(PROFILE))
ASMFLAGS := $(CFLAGS_common) $(CFLAGS_$(PROFILE))
ifeq ($(CPLUSPLUS_BUILD), yes)
CFLAGS += $(CFLAGS_cpp_common)
endif
DEFINES := $(DEFINES_common) $(DEFINES_$(PROFILE))
INCLUDES := $(INCLUDES_common) $(INCLUDE_$(PROFILE))
ARFLAGS := $(ARFLAGS_common) $(ARFLAGS_$(PROFILE))

LIBDIR := lib
OBJDIR := obj/am273x/ti-arm-clang/$(PROFILE)/r5f/lwip-freertos/
OBJS := $(FILES:%.c=%.obj)
OBJS += $(ASMFILES:%.S=%.obj)
DEPS := $(FILES:%.c=%.d)

vpath %.obj $(OBJDIR)
vpath %.c $(FILES_PATH)
vpath %.S $(FILES_PATH)

$(OBJDIR)/%.obj %.obj: %.c
	@echo  Compiling: $(LIBNAME): $<
	$(CC) -c $(CFLAGS) $(INCLUDES) $(DEFINES) -MMD -o $(OBJDIR)/$@ $<

$(OBJDIR)/%.obj %.obj: %.S
	@echo  Compiling: $(LIBNAME): $<
	$(CC) -c $(ASMFLAGS) -o $(OBJDIR)/$@ $<

all:clean $(LIBDIR)/$(LIBNAME)

$(LIBDIR)/$(LIBNAME): $(OBJS) | $(LIBDIR)
	@echo  .
	@echo  Archiving: $(LIBNAME) to $@ ...
	$(AR) $(ARFLAGS) $@ $(addprefix $(OBJDIR), $(OBJS))
	@echo  Archiving: $(LIBNAME) Done !!!
	@echo  .

clean:
	@echo  Cleaning: $(LIBNAME) ...
	$(RMDIR) $(OBJDIR)
	$(RM) $(LIBDIR)/$(LIBNAME)

scrub:
	@echo  Scrubing: $(LIBNAME) ...
	-$(RMDIR) obj/
	-$(RMDIR) lib/

$(OBJS): | $(OBJDIR)

$(LIBDIR) $(OBJDIR):
	$(MKDIR) $@

-include $(addprefix $(OBJDIR)/, $(DEPS))

    #ifndef LWIP_LWIPOPTS_H
#define LWIP_LWIPOPTS_H

#ifdef __cplusplus
extern "C"
{
#endif

#ifdef LWIP_OPTTEST_FILE
#include "lwipopts_test.h"
#else /* LWIP_OPTTEST_FILE */
#include "lwipopts_os.h"
#endif

#define LWIP_IPV4                  1    // Enable IPv4
#define LWIP_IPV6                  0    // Disable IPv6

#define LWIP_SOCKET                0    // Disable lwIP socket support
#define LWIP_NETCONN               (NO_SYS==0)  // Enable lwIP netconn API support
#define LWIP_NETIF_API             (NO_SYS==0)  // Enable netif API

// Disable options related to TCP and other protocols
#define LWIP_TCP                   0    // Disable TCP
#define LWIP_ICMP                  0    // Disable ICMP
#define LWIP_IGMP                  0    // Disable IGMP
#define LWIP_DNS                   0    // Disable DNS
#define LWIP_MDNS_RESPONDER        0    // Disable mDNS
#define LWIP_ARP                   1    // Enable ARP

// Enable UDP
#define LWIP_UDP                   1    // Enable UDP
#define LWIP_UDPLITE               LWIP_UDP  // Enable UDPLITE

#define UDP_TTL                    255  // Set UDP TTL

/* Memory options configuration */
#define MEM_ALIGNMENT              4U    // Set memory alignment
#define MEM_USE_POOLS              1     // Enable memory pools
#define MEMP_USE_CUSTOM_POOLS      1     // Use custom memory pools

#define PBUF_POOL_BUFSIZE          1536  // Set pbuf pool size

/* Other memory pool configurations */
#define MEMP_NUM_PBUF              128
#define MEMP_NUM_UDP_PCB           4
#define MEMP_NUM_TCPIP_MSG_API     128
#define MEMP_NUM_TCPIP_MSG_INPKT   128
#define MEMP_NUM_RAW_PCB           0
#define MEMP_NUM_TCP_PCB           0
#define MEMP_NUM_TCP_PCB_LISTEN    0
#define MEMP_NUM_TCP_SEG           0

/* ---------- Thread and synchronization options ---------- */
#define SYS_LIGHTWEIGHT_PROT       0  // Disable lightweight protection

/* ---------- TCP/IP stack configuration ---------- */
#define TCPIP_THREAD_STACKSIZE     (8 * 1024)  // TCP/IP thread stack size
#define DEFAULT_THREAD_STACKSIZE   (5 * 1024)  // Default thread stack size

/* ---------- UDP receive mailbox size ---------- */
#define DEFAULT_UDP_RECVMBOX_SIZE  320  // Set UDP receive mailbox size

/* ---------- Debug options ---------- */
#define LWIP_DEBUG                 0   // Disable debug output
#define LWIP_DBG_T                 LWIP_DBG_OFF  // Disable debug

#define LWIP_NETIF_LINK_CALLBACK        1
#define LWIP_NETIF_STATUS_CALLBACK      1
#define LWIP_NETIF_EXT_STATUS_CALLBACK  1

#ifdef __cplusplus
}
#endif

#endif /* LWIP_LWIPOPTS_H */