net/txgbe: support VF RSS

[dpdk.git] / drivers / net / ena / ena_ethdev.c

diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 8a937d7..9aa51c9 100644 (file)
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -47,7 +47,7 @@
 #define ENA_HASH_KEY_SIZE      40
 #define ETH_GSTRING_LEN        32
 
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#define ARRAY_SIZE(x) RTE_DIM(x)
 
 #define ENA_MIN_RING_DESC      128
 
@@ -1282,6 +1282,7 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev,
        txq->ring_size = nb_desc;
        txq->size_mask = nb_desc - 1;
        txq->numa_socket_id = socket_id;
+       txq->pkts_without_db = false;
 
        txq->tx_buffer_info = rte_zmalloc("txq->tx_buffer_info",
                                          sizeof(struct ena_tx_buffer) *
@@ -2522,6 +2523,7 @@ static int ena_xmit_mbuf(struct ena_ring *tx_ring, struct rte_mbuf *mbuf)
                        tx_ring->id);
                ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
                tx_ring->tx_stats.doorbells++;
+               tx_ring->pkts_without_db = false;
        }
 
        /* prepare the packet's descriptors to dma engine */
@@ -2603,7 +2605,7 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
        for (sent_idx = 0; sent_idx < nb_pkts; sent_idx++) {
                if (ena_xmit_mbuf(tx_ring, tx_pkts[sent_idx]))
                        break;
-
+               tx_ring->pkts_without_db = true;
                rte_prefetch0(tx_pkts[ENA_IDX_ADD_MASKED(sent_idx, 4,
                        tx_ring->size_mask)]);
        }
@@ -2612,10 +2614,11 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
                ena_com_free_q_entries(tx_ring->ena_com_io_sq);
 
        /* If there are ready packets to be xmitted... */
-       if (sent_idx > 0) {
+       if (likely(tx_ring->pkts_without_db)) {
                /* ...let HW do its best :-) */
                ena_com_write_sq_doorbell(tx_ring->ena_com_io_sq);
                tx_ring->tx_stats.doorbells++;
+               tx_ring->pkts_without_db = false;
        }
 
        ena_tx_cleanup(tx_ring);