TSE or SGDMA related problem with concurrent tx and rx

Hi Daixiwen,

I agree it could be a cache problem. How do I flush the cache as you suggest?

Here you find my code. As you can see, I tried to insert a couple of flush functions I found around (now commented), but they had no effect.

Maybe this is not the correct location to place them. Do I need to place them inside pkt_send function?

void ecat_send(char*data, int len)
{
   PACKET outpkt;
/*
     OS_ENTER_CRITICAL();
        alt_dcache_flush_all ();
        alt_icache_flush_all ();
     OS_EXIT_CRITICAL();
*/
   LOCK_NET_RESOURCE(FREEQ_RESID);
   outpkt = pk_alloc(len+20);
   UNLOCK_NET_RESOURCE(FREEQ_RESID);
   if (!outpkt) {
      printf("Error: pk_alloc() failed");
      dtrap();
      return;
    }
   outpkt->net = ecat_net;
   memcpy(outpkt->nb_buff + ETHHDR_BIAS, data, len+ETHHDR_SIZE);
   outpkt->nb_plen = ETHHDR_BIAS + len;
   
   /* if a packet oriented send exists, use it: */
   if (outpkt->net->pkt_send)   {
      outpkt->nb_prot = outpkt->nb_buff;
      outpkt->net->pkt_send(outpkt);
   }
   else  {
      outpkt->net->raw_send(ecat_net, outpkt->nb_buff, outpkt->nb_plen);
      LOCK_NET_RESOURCE(FREEQ_RESID);
      pk_free(outpkt);
      UNLOCK_NET_RESOURCE(FREEQ_RESID);
   }
   
}

Regards