A S / lwip

1. Reduce the size of the heap memory 2. Change the TCP segment size 3. Disable UDP + DHCP + DNS 4. Change the configuration of the TCP/IP thread

Dependents:   EthernetInterface

Fork of lwip by mbed official

Diff: lwipopts.h

Revision:
15:5737291d43a8
Parent:
12:931deec14b08
Child:
16:f159c25d9261
diff -r 931deec14b08 -r 5737291d43a8 lwipopts.h
--- a/lwipopts.h	Tue Sep 10 15:14:39 2013 +0300
+++ b/lwipopts.h	Sun Feb 02 10:46:40 2014 +0000
@@ -37,10 +37,12 @@
 #define DEFAULT_RAW_RECVMBOX_SIZE   8
 #define DEFAULT_ACCEPTMBOX_SIZE     8
 
-#define TCPIP_THREAD_STACKSIZE      1024
+//#define TCPIP_THREAD_STACKSIZE      1024
+#define TCPIP_THREAD_STACKSIZE      512
 #define TCPIP_THREAD_PRIO           (osPriorityNormal)
 
-#define DEFAULT_THREAD_STACKSIZE    512
+//#define DEFAULT_THREAD_STACKSIZE    512
+#define DEFAULT_THREAD_STACKSIZE    300
 
 #define MEMP_NUM_SYS_TIMEOUT        16
 #endif
@@ -48,23 +50,29 @@
 // 32-bit alignment
 #define MEM_ALIGNMENT               4
 
-#define MEM_SIZE                    16362
+//#define MEM_SIZE                    16362
+#define MEM_SIZE                      (8 * 1024)
 
 #define PBUF_POOL_SIZE              5
-#define MEMP_NUM_TCP_PCB_LISTEN     4
-#define MEMP_NUM_TCP_PCB            4
-#define MEMP_NUM_PBUF               8
+//#define PBUF_POOL_SIZE              16
+#define MEMP_NUM_TCP_PCB_LISTEN     2
+#define MEMP_NUM_TCP_PCB            1
+//#define MEMP_NUM_PBUF               8
+#define MEMP_NUM_PBUF               5
 
 #define TCP_QUEUE_OOSEQ             0
 #define TCP_OVERSIZE                0
 
-#define LWIP_DHCP                   1
-#define LWIP_DNS                    1
+//#define LWIP_DHCP                   1
+//#define LWIP_DNS                    1
+#define LWIP_DHCP                   0
+#define LWIP_DNS                    0
 
 // Support Multicast
-#include "stdlib.h"
-#define LWIP_IGMP                   1
-#define LWIP_RAND()                 rand()
+//#include "stdlib.h"
+//#define LWIP_IGMP                   1
+#define LWIP_IGMP                   0
+//#define LWIP_RAND()                 rand()
 
 #define LWIP_COMPAT_SOCKETS         0
 #define LWIP_POSIX_SOCKETS_IO_NAMES 0
@@ -110,10 +118,14 @@
 #if LWIP_TRANSPORT_ETHERNET
 
 /* MSS should match the hardware packet size */
-#define TCP_MSS                     1460
+//#define TCP_MSS                     1460
+#define TCP_MSS                     560
 #define TCP_SND_BUF                 (2 * TCP_MSS)
 #define TCP_WND                     (2 * TCP_MSS)
+//#define TCP_SND_BUF                 (4 * TCP_MSS)
+//#define TCP_WND                     4096
 #define TCP_SND_QUEUELEN            (2 * TCP_SND_BUF/TCP_MSS)
+//#define TCP_SND_QUEUELEN            ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS))
 
 // Broadcast
 #define IP_SOF_BROADCAST            1