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.
Am I doing something wrong? BR, Angel On Wed, Jun 27, 2012 at 4:48 PM, Angel CODREAN <[email protected]>wrote: > Thank you for the info. I tried to implement it and when I am running it, > I cannot allocate a pbuf chain of pbufs from the pool. I attached the code > of the low_level_input() implementation. len had different values from 1500 > to 100 to 10. > > > static struct pbuf *low_level_input(struct netif *netif) >> { >> struct pbuf *p; >> u16_t len=10; >> >> /* 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; >> } > > > On Wed, Jun 27, 2012 at 3:29 PM, Simon Goldschmidt <[email protected]>wrote: > >> Angel CODREAN <[email protected]> wrote: >> > LWIP_driver_input is the method I implemented in my driver in order to >> > receive packages from the ethernet driver >> > >> > /** Called when a packet is received */ >> > err_t LWIP_driver_input(struct pbuf *pbuf, struct netif *netif) >> > { >> > struct pbuf *p=(struct pbuf*)malloc(sizeof(struct pbuf)); >> > driver_receive(p->payload, &(p->tot_len)); >> > ethernet_input(p, netif); >> > return ERR_OK; >> > } >> >> That is totally not the way it should be. Please have a look at the >> ethernetif.c skeleton file to see how a driver should interact with lwIP. >> >> LwIP will *never* call your LWIP_driver_input() function, it is up to you >> to schedule a call to this function (either by polling the driver or by >> getting an RX interrupt). >> >> Simon >> -- >> NEU: FreePhone 3-fach-Flat mit kostenlosem Smartphone! >> Jetzt informieren: http://mobile.1und1.de/?ac=OM.PW.PW003K20328T7073a >> >> _______________________________________________ >> lwip-users mailing list >> [email protected] >> https://lists.nongnu.org/mailman/listinfo/lwip-users >> > >
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