Example #1
0
/** Transmit buffer over socket (non blocking).
 * @param[in] idx         = index in tx buffer array
 * @return socket send result
 */
int ecx_outframe_red(ecx_portt *port, int idx)
{
   HPESTATUS status;
   ec_comt *datagramP;
   ec_etherheadert *ehp;
   int rval;

   ehp = (ec_etherheadert *)&(port->txbuf[idx]);
   /* rewrite MAC source address 1 to primary */
   ehp->sa1 = oshw_htons(priMAC[1]);
   /* transmit over primary socket*/
   rval = ecx_outframe(port, idx, 0);
   if (port->redstate != ECT_RED_NONE)
   {   
      ehp = (ec_etherheadert *)&(port->txbuf2);
      /* use dummy frame for secondary socket transmit (BRD) */
      datagramP = (ec_comt*)&(port->txbuf2)[ETH_HEADERSIZE];
      /* write index to frame */
      datagramP->index = idx;
      /* rewrite MAC source address 1 to secondary */
      ehp->sa1 = oshw_htons(secMAC[1]);
      /* transmit over secondary socket */
      //send(sockhandle2, &ec_txbuf2, ec_txbuflength2 , 0);
      // OBS! redundant not ACTIVE for BFIN, just added to compile
      //ASSERT (0);
	   hpeAttachTransmitBufferSet(port->redport->handle, port->tx_buffers[idx]);
      status = hpeStartTransmitter(port->redport->handle);
      port->redport->rxbufstat[idx] = EC_BUF_TX;
   }   
   
   return rval;
}
Example #2
0
/** Transmit buffer over socket (non blocking).
 * @param[in] port        = port context struct
 * @param[in] idx = index in tx buffer array
 * @return socket send result
 */
int ecx_outframe_red(ecx_portt *port, int idx)
{
   ec_comt *datagramP;
   ec_etherheadert *ehp;
   int rval;

   ehp = (ec_etherheadert *)&(port->txbuf[idx]);
   /* rewrite MAC source address 1 to primary */
   ehp->sa1 = oshw_htons(priMAC[1]);
   /* transmit over primary socket*/
   rval = ecx_outframe(port, idx, 0);
   if (port->redstate != ECT_RED_NONE)
   {
      mtx_lock (port->tx_mutex);
      ehp = (ec_etherheadert *)&(port->txbuf2);
      /* use dummy frame for secondary socket transmit (BRD) */
      datagramP = (ec_comt*)&(port->txbuf2[ETH_HEADERSIZE]);
      /* write index to frame */
      datagramP->index = idx;
      /* rewrite MAC source address 1 to secondary */
      ehp->sa1 = oshw_htons(secMAC[1]);
      /* transmit over secondary socket */
      //send(sockhandle2, &ec_txbuf2, ec_txbuflength2 , 0);
      // OBS! redundant not ACTIVE for BFIN, just added to compile
      ASSERT (0);
      bfin_EMAC_send(&(port->txbuf2), port->txbuflength2);
      mtx_unlock (port->tx_mutex);
      port->redport->rxbufstat[idx] = EC_BUF_TX;
   }

   return rval;
}
Example #3
0
/** Transmit buffer over socket (non blocking).
 * @param[in] port        = port context struct
 * @param[in] idx = index in tx buffer array
 * @return socket send result
 */
int ecx_outframe_red(ecx_portt *port, int idx)
{
   ec_comt *datagramP;
   ec_etherheadert *ehp;
   int rval;
   
   ehp = (ec_etherheadert *)&(port->txbuf[idx]);
   /* rewrite MAC source address 1 to primary */
   ehp->sa1 = htons(priMAC[1]);
   /* transmit over primary socket*/
   rval = ecx_outframe(port, idx, 0);
   if (port->redstate != ECT_RED_NONE)
   {   
      //pthread_mutex_lock( &(port->tx_mutex) );
      rt_mutex_acquire(&port->tx_mutex, TM_INFINITE);
      ehp = (ec_etherheadert *)&(port->txbuf2);
      /* use dummy frame for secondary socket transmit (BRD) */
      datagramP = (ec_comt*)&(port->txbuf2[ETH_HEADERSIZE]);
      /* write index to frame */
      datagramP->index = idx;
      /* rewrite MAC source address 1 to secondary */
      ehp->sa1 = htons(secMAC[1]);
      /* transmit over secondary socket */
      SEND(port->redport->sockhandle, &(port->txbuf2), port->txbuflength2 , 0);
      //pthread_mutex_unlock( &(port->tx_mutex) );
      rt_mutex_release(&port->tx_mutex);
      port->redport->rxbufstat[idx] = EC_BUF_TX;
   }   
   
   return rval;
}
Example #4
0
int ec_outframe(int idx, int stacknumber)
{
   return ecx_outframe(&ecx_port, idx, stacknumber);
}
Example #5
0
/** Blocking redundant receive frame function. If redundant mode is not active then
 * it skips the secondary stack and redundancy functions. In redundant mode it waits
 * for both (primary and secondary) frames to come in. The result goes in an decision
 * tree that decides, depending on the route of the packet and its possible missing arrival,
 * how to reroute the original packet to get the data in an other try.
 *
 * @param[in] port        = port context struct
 * @param[in] idx = requested index of frame
 * @param[in] timer = absolute timeout time
 * @return Workcounter if a frame is found with corresponding index, otherwise
 * EC_NOFRAME.
 */
static int ecx_waitinframe_red(ecx_portt *port, int idx, osal_timert timer)
{
   int wkc  = EC_NOFRAME;
   int wkc2 = EC_NOFRAME;
   int primrx, secrx;

   /* if not in redundant mode then always assume secondary is OK */
   if (port->redstate == ECT_RED_NONE)
   {
      wkc2 = 0;
   }
   do
   {
      /* only read frame if not already in */
      if (wkc <= EC_NOFRAME)
      {
         wkc  = ecx_inframe(port, idx, 0);
      }
      /* only try secondary if in redundant mode */
      if (port->redstate != ECT_RED_NONE)
      {
         /* only read frame if not already in */
         if (wkc2 <= EC_NOFRAME)
            wkc2 = ecx_inframe(port, idx, 1);
      }
   /* wait for both frames to arrive or timeout */
   } while (((wkc <= EC_NOFRAME) || (wkc2 <= EC_NOFRAME)) && (osal_timer_is_expired(&timer) == FALSE));
   /* only do redundant functions when in redundant mode */
   if (port->redstate != ECT_RED_NONE)
   {
      /* primrx if the reveived MAC source on primary socket */
      primrx = 0;
      if (wkc > EC_NOFRAME)
      {
         primrx = port->rxsa[idx];
      }
      /* secrx if the reveived MAC source on psecondary socket */
      secrx = 0;
      if (wkc2 > EC_NOFRAME)
      {
         secrx = port->redport->rxsa[idx];
      }
      /* primary socket got secondary frame and secondary socket got primary frame */
      /* normal situation in redundant mode */
      if ( ((primrx == RX_SEC) && (secrx == RX_PRIM)) )
      {
         /* copy secondary buffer to primary */
         memcpy(&(port->rxbuf[idx]), &(port->redport->rxbuf[idx]), port->txbuflength[idx] - ETH_HEADERSIZE);
         wkc = wkc2;
      }
      /* primary socket got nothing or primary frame, and secondary socket got secondary frame */
      /* we need to resend TX packet */
      if ( ((primrx == 0) && (secrx == RX_SEC)) ||
           ((primrx == RX_PRIM) && (secrx == RX_SEC)) )
      {
         osal_timert read_timer;

         /* If both primary and secondary have partial connection retransmit the primary received
          * frame over the secondary socket. The result from the secondary received frame is a combined
          * frame that traversed all slaves in standard order. */
         if ( (primrx == RX_PRIM) && (secrx == RX_SEC) )
         {
            /* copy primary rx to tx buffer */
            memcpy(&(port->txbuf[idx][ETH_HEADERSIZE]), &(port->rxbuf[idx]), port->txbuflength[idx] - ETH_HEADERSIZE);
         }
         osal_timer_start(&read_timer, EC_TIMEOUTRET);
         /* resend secondary tx */
         ecx_outframe(port, idx, 1);
         do
         {
            /* retrieve frame */
            wkc2 = ecx_inframe(port, idx, 1);
         } while ((wkc2 <= EC_NOFRAME) && (osal_timer_is_expired(&read_timer) == FALSE));
         if (wkc2 > EC_NOFRAME)
         {
            /* copy secondary result to primary rx buffer */
            memcpy(&(port->rxbuf[idx]), &(port->redport->rxbuf[idx]), port->txbuflength[idx] - ETH_HEADERSIZE);
            wkc = wkc2;
         }
      }
   }

   /* return WKC or EC_NOFRAME */
   return wkc;
}