fw_xfer_alloc_buf
xfer = fw_xfer_alloc_buf(type, slen, rlen);
xfer = fw_xfer_alloc_buf(M_FWXFER, 8, 4);
struct fw_xfer *fw_xfer_alloc_buf (struct malloc_type *, int, int);
xfer = fw_xfer_alloc_buf(mtype, 0, 4);
xfer = fw_xfer_alloc_buf(mtype, 0, 0);
if ((xfer = fw_xfer_alloc_buf(M_FWXFER, uio->uio_resid,
xfer = fw_xfer_alloc_buf(M_FWXFER, pay_len, PAGE_SIZE/*XXX*/);
xfer = fw_xfer_alloc_buf(M_FWDV, padded_len, 0);
xfer = fw_xfer_alloc_buf(M_SBP, 8, 0);