net/mlx4: remove duplicate handling in Tx burst

[dpdk.git] / drivers / net / mlx4 / mlx4_rxtx.c

diff --git a/drivers/net/mlx4/mlx4_rxtx.c b/drivers/net/mlx4/mlx4_rxtx.c
index e0afbea..abd125f 100644 (file)
--- a/drivers/net/mlx4/mlx4_rxtx.c
+++ b/drivers/net/mlx4/mlx4_rxtx.c
@@ -256,7 +256,6 @@ mlx4_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
        struct txq *txq = (struct txq *)dpdk_txq;
        unsigned int elts_head = txq->elts_head;
        const unsigned int elts_n = txq->elts_n;
-       unsigned int elts_comp = 0;
        unsigned int bytes_sent = 0;
        unsigned int i;
        unsigned int max;
@@ -272,8 +271,6 @@ mlx4_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
        assert(max <= elts_n);
        /* Always leave one free entry in the ring. */
        --max;
-       if (max == 0)
-               return 0;
        if (max > pkts_n)
                max = pkts_n;
        for (i = 0; (i != max); ++i) {
@@ -472,7 +469,6 @@ mlx4_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
                sq->head += nr_txbbs;
                elt->buf = buf;
                bytes_sent += buf->pkt_len;
-               ++elts_comp;
                elts_head = elts_head_next;
        }
        /* Take a shortcut if nothing must be sent. */
@@ -486,7 +482,7 @@ mlx4_tx_burst(void *dpdk_txq, struct rte_mbuf **pkts, uint16_t pkts_n)
        /* Ring QP doorbell. */
        rte_write32(txq->msq.doorbell_qpn, txq->msq.db);
        txq->elts_head = elts_head;
-       txq->elts_comp += elts_comp;
+       txq->elts_comp += i;
        return i;
 }