[PATCH net-next 3/4] net: mvpp2: add xdp tx return bulking support

[Lorenzo Bianconi]

Convert mvpp2 driver to xdp_return_frame_bulk APIs.

XDP_REDIRECT (upstream codepath): 1.79Mpps
XDP_REDIRECT (upstream codepath + bulking APIs): 1.93Mpps

Tested-by: Matteo Croce <mcr...@microsoft.com>
Signed-off-by: Lorenzo Bianconi <lore...@kernel.org>
---
 drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c 
b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index f6616c8933ca..04f24d1d72ab 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -2440,8 +2440,10 @@ static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
                                struct mvpp2_tx_queue *txq,
                                struct mvpp2_txq_pcpu *txq_pcpu, int num)
 {
+       struct xdp_frame_bulk bq;
        int i;
 
+       bq.xa = NULL;
        for (i = 0; i < num; i++) {
                struct mvpp2_txq_pcpu_buf *tx_buf =
                        txq_pcpu->buffs + txq_pcpu->txq_get_index;
@@ -2454,10 +2456,11 @@ static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
                        dev_kfree_skb_any(tx_buf->skb);
                else if (tx_buf->type == MVPP2_TYPE_XDP_TX ||
                         tx_buf->type == MVPP2_TYPE_XDP_NDO)
-                       xdp_return_frame(tx_buf->xdpf);
+                       xdp_return_frame_bulk(tx_buf->xdpf, &bq);
 
                mvpp2_txq_inc_get(txq_pcpu);
        }
+       xdp_flush_frame_bulk(&bq);
 }
 
 static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port 
*port,
-- 
2.26.2