TWE_SECTOR_SIZE
param = (TWE_Param *)kmalloc(TWE_SECTOR_SIZE, M_DEVBUF, M_INTWAIT);
tr->tr_length = TWE_SECTOR_SIZE;
param = (TWE_Param *)kmalloc(TWE_SECTOR_SIZE, M_DEVBUF, M_INTWAIT);
tr->tr_length = TWE_SECTOR_SIZE;