Hey guys,
While trying to make lwIP work, with a simple ping I have problems with it.
Trying to debug it I noticed that I cannot allocate memory using
memp_alloc. The problem that I have is that memp_tab[] is an array with
NULL elements.
I tried to play with the lwipopts.h parameters making sure that I have
enough buffs, I checked if I free properly to prevent leakage but I also
have the problem in the very begining.
I attached the files that might help you help me:D
Best regards,
Angel C
On Wed, Jun 27, 2012 at 5:47 PM, Simon Goldschmidt <[email protected]> wrote:
> Angel CODREAN <[email protected]> wrote:
> > While debugging I got up until memp.c at line 404 memp = memp_tab[type];
> > which returns NULL and I don't manage to understand why.
>
> That simply means you are running out of memory in one of the pools.
> Either you memory is (configured) too small or you are leaking (i.e. not
> freeing) memory somewhere.
>
> Simon
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/** This file is created by Energy Micro, based on the reptile/lwip/src/include/lwip/opt.h
* with the following aspects that need to be taken into account
* * unnecesarry options have been removed
* * details about each option can be found in the original file
* * default values are to be found in the original file
*/
#ifndef _LWIP_OPTS_H_
#define _LWIP_OPTS_H_
#define NO_SYS 1
#define SYS_LIGHTWEIGHT_PROT (!NO_SYS)
#define MEM_ALIGNMENT 4
#define MEM_SIZE 128 * 1024
/** Internal memory pool sizes */
#define MEMP_NUM_PBUF 16
#define MEMP_NUM_NETBUF 16
#define MEMP_NUM_RAW_PCB 16
#define MEMP_NUM_UDP_PCB 4
#define MEMP_NUM_TCP_PCB 5
#define MEMP_NUM_TCP_PCB_LISTEN 8
#define MEMP_NUM_TCP_SEG 16
#define MEMP_NUM_REASSDATA 5
#define MEMP_NUM_FRAG_PBUF 15
#define MEMP_NUM_ARP_QUEUE 30
#define MEMP_NUM_IGMP_GROUP 8
#define MEMP_NUM_SYS_TIMEOUT 8
#define MEMP_NUM_TCPIP_MSG_API 8
#define MEMP_NUM_TCPIP_MSG_INPKT 8
#define MEMP_NUM_SNMP_NODE 50
#define MEMP_NUM_SNMP_ROOTNODE 30
#define MEMP_NUM_SNMP_VARBIND 2
#define MEMP_NUM_SNMP_VALUE 3
#define MEMP_NUM_NETDB 1
#define MEMP_NUM_LOCALHOSTLIST 1
#define MEMP_NUM_PPPOE_INTERFACES 1
#define PBUF_POOL_SIZE 160
/** ARP options */
#define ETH_PAD_SIZE 2
#define LWIP_ARP 1
#if LWIP_ARP == 1
#define ARP_TABLE_SIZE 30
#define ARP_QUEUEING 1
#define ETHARP_TRUST_IP_MAC 0
#define ETHARP_SUPPORT_VLAN 0
#define LWIP_ETH_ARP_INTERVAL 2000 /**< ARP timer interval in miliseconds */
#endif
/** IP options */
#define IP_FORWARD 0
#define IP_OPTIONS_ALLOWED 1
#define IP_REASSEMBLY 0
#define IP_FRAG 0
#define IP_DEFAULT_TTL 255
/** ICMP options */
#define LWIP_ICMP 1
#define LWIP_BROADCAST_PING 1
#define LWIP_MULTICAST_PING 1
/** RAW options */
#define LWIP_RAW 1
/** DHCP options */
#define LWIP_DHCP 0
/** AUTOIP options */
#define LWIP_AUTOIP 1
#define LWIP_DHCP_AUTOIP_COOP 0
/** SNMP options */
#define LWIP_SNMP 0
/** IGMP options */
#define LWIP_IGMP 1
/** DNS options */
#define LWIP_DNS 0
/** UDP options */
#define LWIP_UDP 1
#define LWIP_UDPLITE 0
#define LWIP_NETBUF_RECVINFO 0
/** TCP options */
#define LWIP_TCP 1
#define LWIP_TCP_TIMESTAMPS 0
#define TCP_WND 8192
#define TCP_MAXRTX 10
#define TCP_SYNMAXRTX 3
#define TCP_QUEUE_OOSEQ 1
#define TCP_MSS 1460
#define TCP_SND_BUF (8 * TCP_MSS)
#define TCP_SND_QUEUELEN (2 * TCP_SND_BUF/TCP_MSS)
#define TCP_SNDLOWAT (TCP_SND_BUF/2)
#define TCP_LISTEN_BACKLOG 1
#define LWIP_ETH_TCP_INTERVAL 2000 /**< TCP timer interval in miliseconds */
/** Pbuf options */
#define PBUF_POOL_BUFSIZE 1520 // + sizeof(pbuf) = 1536 = 12 cache lines of 128 bytes
#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE)
/** Network Interfaces options */
#define LWIP_NETIF_HOSTNAME 1
#define LWIP_NETIF_API (!NO_SYS)
#define LWIP_NETIF_HWADDRHINT 1
#define LWIP_NETIF_LOOPBACK 1
#define LWIP_NETIF_LINK_CALLBACK 1
/** LOOPIF options */
#define LWIP_HAVE_LOOPIF 0
/** Thread options */
#define TCPIP_MBOX_SIZE 32
#define DEFAULT_UDP_RECVMBOX_SIZE 32
#define DEFAULT_TCP_RECVMBOX_SIZE 32
#define DEFAULT_ACCEPTMBOX_SIZE 4
/** thread priorities are in VDK terms - 1 is highest, 30 is lowest */
#define TCPIP_THREAD_PRIO 5
#define DEFAULT_THREAD_PRIO 10
#define LOW_THREAD_PRIO 29
/** Sequential layer options */
#define LWIP_NETCONN (!NO_SYS)
/** Socket options */
#define LWIP_SOCKET (!NO_SYS)
#define LWIP_COMPAT_SOCKETS 1
#define LWIP_TCP_KEEPALIVE 1
#define LWIP_SO_RCVTIMEO 1
#define LWIP_SO_RCVBUF 0
#define SO_REUSE 1
#define SO_REUSE_RXTOALL 1
/** Statistics options */
#define LWIP_STATS 1
#define LWIP_STATS_LARGE 1
#if LWIP_STATS
#define LINK_STATS 1
#define IP_STATS 1
#define IPFRAG_STATS 1
#define ICMP_STATS 1
#define IGMP_STATS 1
#define UDP_STATS 1
#define TCP_STATS 1
#define MEM_STATS 1
#define MEMP_STAT 1
#define SYS_STATS 1
#define LWIP_STATS_DISPLAY 1
#endif /* STATS */
#define LWIP_PROVIDE_ERRNO 1
/** Debugging options */
#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL
#define LWIP_DEBUG 1
#define LWIP_DBG_TYPES_ON LWIP_DBG_STATE
#define ETHARP_DEBUG LWIP_DBG_ON
#define NETIF_DEBUG LWIP_DBG_ON
#define PBUF_DEBUG LWIP_DBG_ON
#define API_LIB_DEBUG LWIP_DBG_ON
#define API_MSG_DEBUG LWIP_DBG_ON
#define SOCKETS_DEBUG LWIP_DBG_ON
#define ICMP_DEBUG LWIP_DBG_ON
#define IGMP_DEBUG LWIP_DBG_ON
#define INET_DEBUG LWIP_DBG_ON
#define IP_DEBUG LWIP_DBG_ON
#define IP_REASS_DEBUG LWIP_DBG_ON
#define RAW_DEBUG LWIP_DBG_ON
#define MEM_DEBUG LWIP_DBG_ON
#define MEMP_DEBUG LWIP_DBG_ON
#define SYS_DEBUG LWIP_DBG_ON
#define TIMERS_DEBUG LWIP_DBG_ON
#define TCP_DEBUG LWIP_DBG_ON
#define TCP_INPUT_DEBUG LWIP_DBG_ON
#define TCP_FR_DEBUG LWIP_DBG_ON
#define TCP_RTO_DEBUG LWIP_DBG_ON
#define TCP_CWND_DEBUG LWIP_DBG_ON
#define TCP_WND_DEBUG LWIP_DBG_ON
#define TCP_OUTPUT_DEBUG LWIP_DBG_ON
#define TCP_RST_DEBUG LWIP_DBG_ON
#define TCP_QLEN_DEBUG LWIP_DBG_ON
#define UDP_DEBUG LWIP_DBG_ON
#define TCPIP_DEBUG LWIP_DBG_ON
#define PPP_DEBUG LWIP_DBG_ON
#define SLIP_DEBUG LWIP_DBG_ON
#define DHCP_DEBUG LWIP_DBG_ON
#define AUTOIP_DEBUG LWIP_DBG_ON
#define SNMP_MSG_DEBUG LWIP_DBG_ON
#define SNMP_MIB_DEBUG LWIP_DBG_ON
#define DNS_DEBUG LWIP_DBG_ON
#endif // _LWIP_OPTS_H_
#include "lwip_driver.h"
#include "efm32.h"
#include "em_cmu.h"
#include "ksz8851snl_driver.h"
#include "lwip/def.h"
#include "lwip/mem.h"
#include "lwip/pbuf.h"
#include "lwip/sys.h"
#include <lwip/stats.h>
#include <lwip/snmp.h>
#include "netif/etharp.h"
#include "netif/ppp_oe.h"
/** Initialization function that should be passed to netif_add */
err_t LWIP_driver_init(struct netif *netif)
{
localNetif = netif;
netif->name[0] = IFNAME0;
netif->name[1] = IFNAME1;
netif->output = etharp_output;
netif->linkoutput = LWIP_driver_output;
/** set the HW address length */
netif->hwaddr_len = ETH_MAC_ADDR_LEN;
/** set the HW address */
KSZ8851SNL_getMACAddress(netif->hwaddr);
/** set the maximum transfer unit */
netif->mtu = 1500;
/** Set the flags according to device capabilities */
netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_LINK_UP | NETIF_FLAG_ETHARP ;
/** initialize the timers */
timestamp_ETH_ARP = *timestamp_current;
timestamp_ETH_TCP = *timestamp_current;
/** initialize the hardware */
KSZ8851SNL_init();
return ERR_OK;
}
u32_t sys_now(void)
{
return *timestamp_current;
}
/** Called when a raw packet is ready to be transmitted. */
err_t LWIP_driver_output(struct netif *netif, struct pbuf *p)
{
struct pbuf *q;
//#if ETH_PAD_SIZE
// pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
//#endif
for(q = p; q != NULL; q = q->next) {
KSZ8851SNL_send(p->tot_len, p->payload);
}
//#if ETH_PAD_SIZE
// pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
//#endif
LINK_STATS_INC(link.xmit);
return ERR_OK;
}
///** Called when a packet is received */
//err_t LWIP_driver_input(struct pbuf *pbuf, struct netif *netif)
//{
// uint16_t length;
// //TODO improve this
// uint8_t payload[1500];
// KSZ8851SNL_receive(payload, &length);
// struct pbuf *p = pbuf_alloc(PBUF_RAW, length, PBUF_POOL);
// p->len=length;
// p->tot_len+=length;
// for (int i=0;i<length;i++)
// {
// (p->payload)[i] = (uint8_t)payload[i];
// }
//
// ethernet_input(p, netif);
// return ERR_OK;
//}
static void LWIP_driver_input(struct netif *netif)
{
struct eth_hdr *ethhdr;
struct pbuf *p;
/* move received packet into a new pbuf */
p = low_level_input(netif);
/** no packet could be read, silently ignore this */
if (p == NULL) return;
/* points to packet payload, which starts with an Ethernet header */
ethhdr = p->payload;
switch (htons(ethhdr->type)) {
/* IP or ARP packet? */
case ETHTYPE_IP:
case ETHTYPE_ARP:
//#if PPPOE_SUPPORT
// /* PPPoE packet? */
// case ETHTYPE_PPPOEDISC:
// case ETHTYPE_PPPOE:
//#endif /* PPPOE_SUPPORT */
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif)!=ERR_OK)
{
LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
pbuf_free(p);
p = NULL;
}
break;
default:
pbuf_free(p);
p = NULL;
break;
}
}
static struct pbuf *low_level_input(struct netif *netif)
{
struct pbuf *p;
u16_t len=100;
//#if ETH_PAD_SIZE
// len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
//#endif
/* We allocate a pbuf chain of pbufs from the pool. */
p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
if (p != NULL)
{
KSZ8851SNL_receive(p->payload, &(p->len));
LINK_STATS_INC(link.recv);
} else
{
//TODO drop packet();
LINK_STATS_INC(link.memerr);
LINK_STATS_INC(link.drop);
}
return p;
}
/** Timestamp capabilities */
void LWIP_driver_timestamp_engine(void)
{
if (abs(timestamp_ETH_ARP - *timestamp_current) >= LWIP_ETH_ARP_INTERVAL) {
etharp_tmr();
timestamp_ETH_ARP = *timestamp_current;
}
if (abs(timestamp_ETH_TCP - *timestamp_current) >= LWIP_ETH_TCP_INTERVAL) {
tcp_tmr();
timestamp_ETH_TCP = *timestamp_current;
}
}
/** LWIP main loop */
void LWIP_loop(struct netif *netif, uint32_t *global_timestamp)
{
timestamp_current=global_timestamp;
while(1)
{
LWIP_driver_timestamp_engine();
LWIP_driver_input(localNetif);//blocking call for the moment
}
}_______________________________________________
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