net/bnxt: support Tx descriptor status

[dpdk.git] / drivers / net / bnxt / bnxt_ethdev.c

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 12888e6..97ddca0 100644 (file)
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -1610,6 +1610,43 @@ bnxt_rx_descriptor_status_op(void *rx_queue, uint16_t offset)
        return RTE_ETH_RX_DESC_AVAIL;
 }
 
+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;
+}
+
 /*
  * Initialization
  */
@@ -1661,6 +1698,7 @@ static const struct eth_dev_ops bnxt_dev_ops = {
        .xstats_get_names_by_id = bnxt_dev_xstats_get_names_by_id_op,
        .rx_queue_count = bnxt_rx_queue_count_op,
        .rx_descriptor_status = bnxt_rx_descriptor_status_op,
+       .tx_descriptor_status = bnxt_tx_descriptor_status_op,
 };
 
 static bool bnxt_vf_pciid(uint16_t id)