Re: [lwip-users] Problem with large messages and netconn_write

[tmp]

A package capture is attaced.

lwipopts.h

/* ---------- TCP/IP thread and mailbox settings ---------- */
#define  TCPIP_THREAD_NAME                "tcpip_thread"
#define  TCPIP_THREAD_STACKSIZE           500
#define  TCPIP_THREAD_PRIO                1

/* Number of elements for each mailbox queue */
#define  TCPIP_MBOX_SIZE                  6
#define  DEFAULT_RAW_RECVMBOX_SIZE        6
#define  DEFAULT_UDP_RECVMBOX_SIZE        6
#define  DEFAULT_TCP_RECVMBOX_SIZE        6
#define  DEFAULT_ACCEPTMBOX_SIZE          6


/* ---------- System settings ---------- */
#define NO_SYS                     0
#define LWIP_SOCKET               (NO_SYS==0)
#define LWIP_NETCONN              (NO_SYS==0)


/* ---------- Debug settings ---------- */
#ifdef LWIP_DEBUG

#define LWIP_DBG_MIN_LEVEL         0
#define PPP_DEBUG                  LWIP_DBG_OFF
#define MEM_DEBUG                  LWIP_DBG_OFF
#define MEMP_DEBUG                 LWIP_DBG_OFF
#define PBUF_DEBUG                 LWIP_DBG_OFF
#define API_LIB_DEBUG              LWIP_DBG_ON
#define API_MSG_DEBUG              LWIP_DBG_ON
#define TCPIP_DEBUG                LWIP_DBG_ON
#define NETIF_DEBUG                LWIP_DBG_ON
#define SOCKETS_DEBUG              LWIP_DBG_ON
#define DNS_DEBUG                  LWIP_DBG_ON
#define AUTOIP_DEBUG               LWIP_DBG_OFF
#define DHCP_DEBUG                 LWIP_DBG_ON
#define IP_DEBUG                   LWIP_DBG_ON
#define IP_REASS_DEBUG             LWIP_DBG_OFF
#define ICMP_DEBUG                 LWIP_DBG_OFF
#define IGMP_DEBUG                 LWIP_DBG_OFF
#define UDP_DEBUG                  LWIP_DBG_ON
#define TCP_DEBUG                  LWIP_DBG_ON
#define TCP_INPUT_DEBUG            LWIP_DBG_ON
#define TCP_OUTPUT_DEBUG           LWIP_DBG_ON
#define TCP_RTO_DEBUG              LWIP_DBG_OFF
#define TCP_CWND_DEBUG             LWIP_DBG_OFF
#define TCP_WND_DEBUG              LWIP_DBG_OFF
#define TCP_FR_DEBUG               LWIP_DBG_OFF
#define TCP_QLEN_DEBUG             LWIP_DBG_OFF
#define TCP_RST_DEBUG              LWIP_DBG_OFF

#define LWIP_DBG_TYPES_ON        
(LWIP_DBG_ON|LWIP_DBG_TRACE|LWIP_DBG_STATE|LWIP_DBG_FRESH|LWIP_DBG_HALT)

#else

#define LWIP_DBG_TYPES_ON         (0)

#endif


/* ---------- 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                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           16 //20
/* MEMP_NUM_RAW_PCB: the number of UDP protocol control blocks. One
   per active RAW "connection". */
#define MEMP_NUM_RAW_PCB        3
/* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One
   per active UDP "connection". */
#define MEMP_NUM_UDP_PCB        3 //4
/* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP
   connections. */
#define MEMP_NUM_TCP_PCB        6 //10
/* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP
   connections. */
#define MEMP_NUM_TCP_PCB_LISTEN 5 //8
/* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP
   segments. */
#define MEMP_NUM_TCP_SEG        5 //8
/* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active
   timeouts. */
#define MEMP_NUM_SYS_TIMEOUT    10


/* 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_TCPIP_MSG_*: 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_API   16
#define MEMP_NUM_TCPIP_MSG_INPKT 16


/* ---------- Pbuf options ---------- */
/* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */
#define PBUF_POOL_SIZE          32 //2 //4

/* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */
#define PBUF_POOL_BUFSIZE       128 //1500

/* PBUF_LINK_HLEN: the number of bytes that should be allocated for a
   link level header. */
#define PBUF_LINK_HLEN          16

/** SYS_LIGHTWEIGHT_PROT
 * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task
 protection
 * for certain critical regions during buffer allocation, deallocation
 and memory
 * allocation and deallocation.
*/
#define SYS_LIGHTWEIGHT_PROT    (NO_SYS==0)


/* ---------- 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                 1024 //1500

/* TCP sender buffer space (bytes). */
#define TCP_SND_BUF             2048 //1500

/* TCP sender buffer space (pbufs). This must be at least = 2 *
   TCP_SND_BUF/TCP_MSS for things to work. */
#define TCP_SND_QUEUELEN        (4 * TCP_SND_BUF/TCP_MSS)

/* TCP receive window. */
#define TCP_WND                 8096 //1500

/* 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 LWIP_ARP                1
#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

/* IP reassembly and segmentation.These are orthogonal even
* if they both deal with IP fragments */
#define IP_REASSEMBLY           1
#define IP_REASS_MAX_PBUFS      10
#define MEMP_NUM_REASSDATA      10
#define IP_FRAG                 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. */
#define LWIP_DHCP               1 //0

/* 1 if you want to do an ARP check on the offered address
   (recommended). */
#define DHCP_DOES_ARP_CHECK     (LWIP_DHCP)


/* ---------- AUTOIP options ------- */
#define LWIP_AUTOIP             0
#define LWIP_DHCP_AUTOIP_COOP  (LWIP_DHCP && LWIP_AUTOIP)


/* ---------- UDP options ---------- */
#define LWIP_UDP                1
#define LWIP_UDPLITE            1
#define UDP_TTL                 255


/* ---------- RAW options ---------- */
#define  LWIP_RAW                         0


/* ---------- DMS options ---------- */
#define  LWIP_DNS                         1


/* ---------- Statistics options ---------- */
#define LWIP_STATS              1
#define LWIP_STATS_DISPLAY      1

#if LWIP_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 /* LWIP_STATS */


//#define LWIP_PROVIDE_ERRNO 1


/* ---------- PPP options ---------- */
#define PPP_SUPPORT             0      /* Set > 0 for PPP */

#if PPP_SUPPORT

#define NUM_PPP                 1      /* Max PPP sessions. */

/* Select modules to enable. Ideally these would be set in the makefile
but
* we're limited by the command line length so you need to modify the
settings
* in this file.
*/
#define PPPOE_SUPPORT           1
#define PPPOS_SUPPORT           1
#define PAP_SUPPORT             1      /* Set > 0 for PAP. */
#define CHAP_SUPPORT            1      /* Set > 0 for CHAP. */
#define MSCHAP_SUPPORT          0      /* Set > 0 for MSCHAP (NOT
FUNCTIONAL!) */
#define CBCP_SUPPORT            0      /* Set > 0 for CBCP (NOT
FUNCTIONAL!) */
#define CCP_SUPPORT             0      /* Set > 0 for CCP (NOT
FUNCTIONAL!) */
#define VJ_SUPPORT              1      /* Set > 0 for VJ header
compression. */
#define MD5_SUPPORT             1      /* Set > 0 for MD5 (see also
CHAP) */

#endif /* PPP_SUPPORT */




#endif /* __LWIPOPTS_H__ */

On Fri, 20 Mar 2009 10:06 +0000, "Kieran Mansley" <address@hidden>
wrote:
> On Fri, 2009-03-20 at 11:00 +0100, address@hidden wrote:
> 
> > The problem appears when the entire Ethernet frame going out exceeds 950
> > bytes (TCP package exceeds 896 bytes). The package is never received by
> > the computer (direct connection, using a package sniffing program to
> > check the traffic). netconn_write returns ERR_OK but the lwip stack
> > isn’t working any more (doesn’t reply to an ARP request from the
> > computer). 
> 
> Can you show us your lwipopts.h, and if possible a packet capture of it
> going wrong?
> 
> Thanks
> 
> Kieran
> 
> 
> 
> _______________________________________________
> lwip-users mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/lwip-users

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