Hi, I turned on TF_NODELAY flag of pcb (however I use netconf API, lwIP-1.1.1) and my packets are sent by TCP much much faster. I use GPRS and PPP thus no delay is important and greatly improves efficiency. But I noticed a bug :( The bug is following: I make connection to server (lwip client). After connection establishing is made "dialog" with very short data frames. The dialog is very very slow (lwip receive data very slow - PC computer do this much faster). In next step I start to send data stream into server with maximum data rate which is possible. Data transfer is a little slower than by compter (GPRS-PPP connection to internet). And now I turn off the serwer. The link is failed and it is ok. After it I start the serwer again, client makes connection, and start to send data as continuation to serwer without the "dialog". Serwer send frame to client to inform him to stop the data stream but the client does not receive it! Is it memory buffer problem? is it possible the lwIP cannot allocate memory for segment?
lwipopts.h: /* * Copyright (c) 2001-2003 Swedish Institute of Computer Science. * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY * OF SUCH DAMAGE. * * This file is part of the lwIP TCP/IP stack. * * Author: Adam Dunkels <[EMAIL PROTECTED]> * */ #ifndef __LWIPOPTS_H__ #define __LWIPOPTS_H__ #define LWIP_NOASSERT 1 // To suppress some errors for now (no debug output) #define LWIP_PLATFORM_ASSERT(x) //kprintf(x"\n") #define SYS_LIGHTWEIGHT_PROT 1 #define TCPIP_THREAD_PRIO 3 /* ---------- Memory options ---------- */ /* MEM_ALIGNMENT: should be set to the alignment of the CPU for which lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2 byte alignment -> define MEM_ALIGNMENT to 2. */ #define MEM_ALIGNMENT 4 /* MEM_SIZE: the size of the heap memory. If the application will send a lot of data that needs to be copied, this should be set high. */ #define MEM_SIZE 4000//2000 /* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application sends a lot of data out of ROM (or other static memory), this should be set high. */ #define MEMP_NUM_PBUF 20 //8//20 /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One per active UDP "connection". */ #define MEMP_NUM_UDP_PCB 4 //4 /* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections. */ #define MEMP_NUM_TCP_PCB 10 //2//10 /* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. */ #define MEMP_NUM_TCP_PCB_LISTEN 8 /* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. */ #define MEMP_NUM_TCP_SEG 8 /* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts. */ #define MEMP_NUM_SYS_TIMEOUT 5 //3 /* The following four are used only with the sequential API and can be set to 0 if the application only will use the raw API. */ /* MEMP_NUM_NETBUF: the number of struct netbufs. */ #define MEMP_NUM_NETBUF 4 /* MEMP_NUM_NETCONN: the number of struct netconns. */ #define MEMP_NUM_NETCONN 4 /* MEMP_NUM_APIMSG: the number of struct api_msg, used for communication between the TCP/IP stack and the sequential programs. */ #define MEMP_NUM_API_MSG 8 /* MEMP_NUM_TCPIPMSG: the number of struct tcpip_msg, which is used for sequential API communication and incoming packets. Used in src/api/tcpip.c. */ #define MEMP_NUM_TCPIP_MSG 8 /* These two control is reclaimer functions should be compiled in. Should always be turned on (1). */ #define MEM_RECLAIM 1 #define MEMP_RECLAIM 1 /* ---------- Pbuf options ---------- */ /* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ #define PBUF_POOL_SIZE 16//4 //8//16 /* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ #define PBUF_POOL_BUFSIZE 128//1500 //128//512 /* PBUF_LINK_HLEN: the number of bytes that should be allocated for a link level header. */ #define PBUF_LINK_HLEN 14//16 /* ---------- TCP options ---------- */ #define LWIP_TCP 1 #define TCP_TTL 255 /* Controls if TCP should queue segments that arrive out of order. Define to 0 if your device is low on memory. */ #define TCP_QUEUE_OOSEQ 1 /* TCP Maximum segment size. */ #define TCP_MSS 1460//*128//512//1500 //512 /* TCP sender buffer space (bytes). */ #define TCP_SND_BUF 3000//*2048//512//1500 //512 /* TCP sender buffer space (pbufs). This must be at least = 2 * TCP_SND_BUF/TCP_MSS for things to work. */ #define TCP_SND_QUEUELEN /*6*/4 * TCP_SND_BUF/TCP_MSS /* TCP receive window. */ #define TCP_WND 512//1500 //512 /* Maximum number of retransmissions of data segments. */ #define TCP_MAXRTX 12 /* Maximum number of retransmissions of SYN segments. */ #define TCP_SYNMAXRTX 4 /* ---------- ARP options ---------- */ #define ARP_TABLE_SIZE 10 #define ARP_QUEUEING 1 /* ---------- IP options ---------- */ /* Define IP_FORWARD to 1 if you wish to have the ability to forward IP packets across network interfaces. If you are going to run lwIP on a device with only one network interface, define this to 0. */ #define IP_FORWARD 0 // 1 /* If defined to 1, IP options are allowed (but not parsed). If defined to 0, all packets with IP options are dropped. */ #define IP_OPTIONS 1 /* ---------- ICMP options ---------- */ #define ICMP_TTL 255 /* ---------- DHCP options ---------- */ /* Define LWIP_DHCP to 1 if you want DHCP configuration of interfaces. DHCP is not implemented in lwIP 0.5.1, however, so turning this on does currently not work. */ #define LWIP_DHCP 0 /* 1 if you want to do an ARP check on the offered address (recommended). */ #define DHCP_DOES_ARP_CHECK 1 /* ---------- UDP options ---------- */ #define LWIP_UDP 1 #define UDP_TTL 255 /* ---------- Statistics options ---------- */ #define STATS #ifdef STATS #define LINK_STATS 1 #define IP_STATS 1 #define ICMP_STATS 1 #define UDP_STATS 1 #define TCP_STATS 1 #define MEM_STATS 1 #define MEMP_STATS 1 #define PBUF_STATS 1 #define SYS_STATS 1 #endif /* STATS */ #define LWIP_PROVIDE_ERRNO 1 //#define LWIP_EVENT_API //moje wlasne dla PPP: /* ---------- PPP options ---------- */ #define PPP_SUPPORT 1 /* Set for PPP */ #if PPP_SUPPORT #define PPP_THREAD_PRIO 4//2 #define NUM_PPP 1 /* Max PPP sessions. */ #define PAP_SUPPORT 1 /* Set for PAP. */ #define CHAP_SUPPORT 0 /* Set for CHAP. */ #define MSCHAP_SUPPORT 0 /* Set for MSCHAP (NOT FUNCTIONAL!) */ #define CBCP_SUPPORT 0 /* Set for CBCP (NOT FUNCTIONAL!) */ #define CCP_SUPPORT 0 /* Set for CCP (NOT FUNCTIONAL!) */ #define VJ_SUPPORT 0 /* Set for VJ header compression. */ #define MD5_SUPPORT 1 /* Set for MD5 (see also CHAP) */ #define PPP_DEBUG 1 #endif #define IP_REASSEMBLY 1 // IP fragments #define LWIP_DEBUG extern void kprintf(const char *format,...); #define LWIP_PLATFORM_DIAG(x) kprintf x #define DBG_TYPES_ON 0xff #define ETHARP_DEBUG DBG_OFF #define NETIF_DEBUG DBG_OFF #define PBUF_DEBUG DBG_OFF #define API_LIB_DEBUG DBG_OFF #define API_MSG_DEBUG DBG_OFF #define SOCKETS_DEBUG DBG_OFF #define ICMP_DEBUG DBG_OFF #define INET_DEBUG DBG_OFF #define IP_DEBUG DBG_OFF #define IP_REASS_DEBUG DBG_OFF #define RAW_DEBUG DBG_OFF #define MEM_DEBUG DBG_OFF #define MEMP_DEBUG DBG_OFF #define SYS_DEBUG DBG_OFF #define TCP_DEBUG DBG_ON #define TCP_INPUT_DEBUG DBG_OFF #define TCP_FR_DEBUG DBG_OFF #define TCP_RTO_DEBUG DBG_OFF #define TCP_REXMIT_DEBUG DBG_OFF #define TCP_CWND_DEBUG DBG_OFF #define TCP_WND_DEBUG DBG_OFF #define TCP_OUTPUT_DEBUG DBG_OFF #define TCP_RST_DEBUG DBG_OFF #define TCP_QLEN_DEBUG DBG_OFF #define UDP_DEBUG DBG_OFF #define TCPIP_DEBUG DBG_OFF #define DBG_MIN_LEVEL DBG_LEVEL_OFF /* #define DBG_TYPES_ON 0 #define ETHARP_DEBUG DBG_OFF #define NETIF_DEBUG DBG_OFF #define PBUF_DEBUG DBG_OFF #define API_LIB_DEBUG DBG_OFF #define API_MSG_DEBUG DBG_OFF #define SOCKETS_DEBUG DBG_OFF #define ICMP_DEBUG DBG_OFF #define INET_DEBUG DBG_OFF #define IP_DEBUG DBG_OFF #define IP_REASS_DEBUG DBG_OFF #define RAW_DEBUG DBG_OFF #define MEM_DEBUG DBG_OFF #define MEMP_DEBUG DBG_OFF #define SYS_DEBUG DBG_OFF #define TCP_DEBUG DBG_OFF #define TCP_INPUT_DEBUG DBG_OFF #define TCP_FR_DEBUG DBG_OFF #define TCP_RTO_DEBUG DBG_OFF #define TCP_REXMIT_DEBUG DBG_OFF #define TCP_CWND_DEBUG DBG_OFF #define TCP_WND_DEBUG DBG_OFF #define TCP_OUTPUT_DEBUG DBG_OFF #define TCP_RST_DEBUG DBG_OFF #define TCP_QLEN_DEBUG DBG_OFF #define UDP_DEBUG DBG_OFF #define TCPIP_DEBUG DBG_OFF #define PPP_DEBUG DBG_OFF #define SLIP_DEBUG DBG_OFF #define DHCP_DEBUG DBG_OFF #define DBG_MIN_LEVEL DBG_LEVEL_OFF */ #endif /* __LWIPOPTS_H__ */ best regards Janusz U. _______________________________________________ lwip-users mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/lwip-users
