func: static void virtio_scsi_parse_req(VirtIOSCSI *s, VirtQueue *vq,
  
                                    VirtIOSCSIReq *req)
  
  {
  
      assert(req->elem.out_num && req->elem.in_num);
  
      req->vq = vq;
  
      req->dev = s;
  
      req->sreq = NULL;
  
      req->req.buf = req->elem.out_sg[0].iov_base;
  
      req->resp.buf = req->elem.in_sg[0].iov_base;
  
  
  
      if (req->elem.out_num > 1) {
  
          qemu_sgl_init_external(&req->qsgl, &req->elem.out_sg[1],
  
                                 &req->elem.out_addr[1],
  
                                 req->elem.out_num - 1);
  
      } else {
  
          qemu_sgl_init_external(&req->qsgl, &req->elem.in_sg[1],
  
                                 &req->elem.in_addr[1],
  
                                 req->elem.in_num - 1);
  
      }
  
  }
  