func: static void scsi_read_data(SCSIDevice *d, uint32_t tag)
  
  {
  
      SCSIDiskState *s = DO_UPCAST(SCSIDiskState, qdev, d);
  
      SCSIDiskReq *r;
  
  
  
      r = scsi_find_request(s, tag);
  
      if (!r) {
  
          BADF("Bad read tag 0x%x\n", tag);
  
          /* ??? This is the wrong error.  */
  
          scsi_command_complete(r, CHECK_CONDITION, HARDWARE_ERROR);
  
          return;
  
      }
  
  
  
      /* No data transfer may already be in progress */
  
      assert(r->req.aiocb == NULL);
  
  
  
      scsi_read_request(r);
  
  }
  