SD_BYTES2TGTBLOCKS
requested_nblocks = SD_BYTES2TGTBLOCKS(un, bp->b_bcount);
blockcount = SD_BYTES2TGTBLOCKS(un, bp->b_bcount);
SD_BYTES2TGTBLOCKS(un,
SD_BYTES2TGTBLOCKS(un, pktp->pkt_resid);
ubd->ubd_lba = BE_64(SD_BYTES2TGTBLOCKS(un,
ubd->ubd_lba_cnt = BE_32(SD_BYTES2TGTBLOCKS(un, len));
block_count = SD_BYTES2TGTBLOCKS(un, buflen);
nblk -= SD_BYTES2TGTBLOCKS(un, dma_resid);
num_blks_not_xfered = SD_BYTES2TGTBLOCKS(un, bytes_not_xfered);
SD_BYTES2TGTBLOCKS(un, bp->b_bcount - bytes_not_xfered);
(SD_BYTES2TGTBLOCKS(un, bytecount) * (un)->un_tgt_blocksize)