VHCI_PRIN_HEADER_SZ
if (vpkt->vpkt_tgt_init_bp->b_bcount <= VHCI_PRIN_HEADER_SZ) {
if ((prin_length + VHCI_PRIN_HEADER_SZ) > 0xFFFF) {
needed_length = prin_length + VHCI_PRIN_HEADER_SZ;
svl_prin_length += VHCI_PRIN_HEADER_SZ;