DB_LSOFLAGS
lso = DB_LSOFLAGS(pMblk) & HW_LSO;
if ((DB_LSOFLAGS(mp) & HW_LSO) == 0) {
if (DB_LSOFLAGS(mp) & HW_LSO) {
ASSERT(mss == 0 || (DB_LSOFLAGS(mp) & HW_LSO));
DB_LSOFLAGS(mp) |= flags;
DB_LSOFLAGS(mp) &= ~HW_LSO_FLAGS;