INVALID_NM_TXQ_CNTXT_ID
nm_txq->cntxt_id = INVALID_NM_TXQ_CNTXT_ID;
if (nm_txq->cntxt_id != INVALID_NM_TXQ_CNTXT_ID)
MPASS(nm_txq->cntxt_id == INVALID_NM_TXQ_CNTXT_ID);
if (nm_txq->cntxt_id == INVALID_NM_TXQ_CNTXT_ID) {
nm_txq->cntxt_id = INVALID_NM_TXQ_CNTXT_ID;
MPASS(nm_txq->cntxt_id != INVALID_NM_TXQ_CNTXT_ID);