net/bnx2x: use single doorbell for Tx

[dpdk.git] / drivers / net / bnx2x / bnx2x_rxtx.c

diff --git a/drivers/net/bnx2x/bnx2x_rxtx.c b/drivers/net/bnx2x/bnx2x_rxtx.c
index 8eeb9d5..d0c42f8 100644 (file)
--- a/drivers/net/bnx2x/bnx2x_rxtx.c
+++ b/drivers/net/bnx2x/bnx2x_rxtx.c
@@ -211,10 +211,9 @@ bnx2x_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
        struct bnx2x_tx_queue *txq;
        struct bnx2x_softc *sc;
        struct bnx2x_fastpath *fp;
-       uint32_t burst;
-       struct rte_mbuf **m = tx_pkts;
        uint16_t nb_tx_pkts;
        uint16_t nb_pkt_sent = 0;
+       uint32_t ret;
 
        txq = p_txq;
        sc = txq->sc;
@@ -228,19 +227,23 @@ bnx2x_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
        if (unlikely(nb_tx_pkts == 0))
                return 0;
 
-       burst = RTE_MIN(nb_tx_pkts, RTE_PMD_BNX2X_TX_MAX_BURST);
-
        while (nb_tx_pkts--) {
+               struct rte_mbuf *m = *tx_pkts++;
                assert(m != NULL);
-               bnx2x_tx_encap(txq, m, burst);
-               bnx2x_update_fp_sb_idx(fp);
-               if ((txq->nb_tx_desc - txq->nb_tx_avail) >
-                                       txq->tx_free_thresh)
-                       bnx2x_txeof(sc, fp);
-               m += burst;
+               ret = bnx2x_tx_encap(txq, m);
+               fp->tx_db.data.prod += ret;
                nb_pkt_sent++;
        }
 
+       bnx2x_update_fp_sb_idx(fp);
+       mb();
+       DOORBELL(sc, txq->queue_id, fp->tx_db.raw);
+       mb();
+
+       if ((txq->nb_tx_desc - txq->nb_tx_avail) >
+                               txq->tx_free_thresh)
+               bnx2x_txeof(sc, fp);
+
        return nb_pkt_sent;
 }