+static int
+bnxt_tx_descriptor_status_op(void *tx_queue, uint16_t offset)
+{
+ struct bnxt_tx_queue *txq = (struct bnxt_tx_queue *)tx_queue;
+ struct bnxt_tx_ring_info *txr;
+ struct bnxt_cp_ring_info *cpr;
+ struct bnxt_sw_tx_bd *tx_buf;
+ struct tx_pkt_cmpl *txcmp;
+ uint32_t cons, cp_cons;
+
+ if (!txq)
+ return -EINVAL;
+
+ cpr = txq->cp_ring;
+ txr = txq->tx_ring;
+
+ if (offset >= txq->nb_tx_desc)
+ return -EINVAL;
+
+ cons = RING_CMP(cpr->cp_ring_struct, offset);
+ txcmp = (struct tx_pkt_cmpl *)&cpr->cp_desc_ring[cons];
+ cp_cons = cpr->cp_raw_cons;
+
+ if (cons > cp_cons) {
+ if (CMPL_VALID(txcmp, cpr->valid))
+ return RTE_ETH_TX_DESC_UNAVAIL;
+ } else {
+ if (CMPL_VALID(txcmp, !cpr->valid))
+ return RTE_ETH_TX_DESC_UNAVAIL;
+ }
+ tx_buf = &txr->tx_buf_ring[cons];
+ if (tx_buf->mbuf == NULL)
+ return RTE_ETH_TX_DESC_DONE;
+
+ return RTE_ETH_TX_DESC_FULL;
+}
+