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
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Diff: netif/ppp/ppp.c
- Revision:
- 4:f71f5d9d5846
- Parent:
- 0:51ac1d130fd4
diff -r 9a63dd787415 -r f71f5d9d5846 netif/ppp/ppp.c --- a/netif/ppp/ppp.c Fri Jun 22 13:39:39 2012 +0000 +++ b/netif/ppp/ppp.c Fri Jun 22 15:08:59 2012 +0000 @@ -249,7 +249,9 @@ /******************************/ u_long subnetMask; -static PPPControl pppControl[NUM_PPP]; /* The PPP interface control blocks. */ +static PPPControl pppControl[NUM_PPP] __attribute((section("AHBSRAM1"))); /* The PPP interface control blocks. */ + +sys_mbox_t pppMbox; //Used to signal PPP thread that a PPP session begins /* * PPP Data Link Layer "protocol" table. @@ -279,7 +281,7 @@ * Buffers for outgoing packets. This must be accessed only from the appropriate * PPP task so that it doesn't need to be protected to avoid collisions. */ -u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN]; +u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN] __attribute((section("AHBSRAM1"))); /*****************************/ @@ -448,6 +450,9 @@ (*protp->init)(i); } } + + sys_mbox_new(&pppMbox, 1); + sys_thread_new(PPP_THREAD_NAME, pppInputThread, (void*)NULL, PPP_THREAD_STACKSIZE, PPP_THREAD_PRIO); //Create PPP thread here } void @@ -573,7 +578,7 @@ PPPDEBUG(LOG_INFO, ("pppOverSerialOpen: unit %d: Connecting\n", pd)); pppStart(pd); #if PPP_INPROC_OWNTHREAD - sys_thread_new(PPP_THREAD_NAME, pppInputThread, (void*)&pc->rx, PPP_THREAD_STACKSIZE, PPP_THREAD_PRIO); + sys_mbox_post(&pppMbox, (void*)&pc->rx); #endif } @@ -1508,6 +1513,10 @@ int count; PPPControlRx *pcrx = arg; + do + { + sys_arch_mbox_fetch(&pppMbox, (void**)&pcrx, 0); //Wait indefinitely + while (lcp_phase[pcrx->pd] != PHASE_DEAD) { count = sio_read(pcrx->fd, pcrx->rxbuf, PPPOS_RX_BUFSIZE); if(count > 0) { @@ -1517,6 +1526,7 @@ sys_msleep(1); } } + } while(1); //Never terminates } #endif /* PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD */