[PATCH net-next] net: mvneta: try to use in-irq pp cache in mvneta_txq_bufs_free

[Lorenzo Bianconi]

Try to recycle the xdp tx buffer into the in-irq page_pool cache if
mvneta_txq_bufs_free is executed in the NAPI context.

Signed-off-by: Lorenzo Bianconi <lore...@kernel.org>
---
 drivers/net/ethernet/marvell/mvneta.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c 
b/drivers/net/ethernet/marvell/mvneta.c
index 14df3aec285d..646fbf4ed638 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1831,7 +1831,7 @@ static struct mvneta_tx_queue 
*mvneta_tx_done_policy(struct mvneta_port *pp,
 /* Free tx queue skbuffs */
 static void mvneta_txq_bufs_free(struct mvneta_port *pp,
                                 struct mvneta_tx_queue *txq, int num,
-                                struct netdev_queue *nq)
+                                struct netdev_queue *nq, bool napi)
 {
        unsigned int bytes_compl = 0, pkts_compl = 0;
        int i;
@@ -1854,7 +1854,10 @@ static void mvneta_txq_bufs_free(struct mvneta_port *pp,
                        dev_kfree_skb_any(buf->skb);
                } else if (buf->type == MVNETA_TYPE_XDP_TX ||
                           buf->type == MVNETA_TYPE_XDP_NDO) {
-                       xdp_return_frame(buf->xdpf);
+                       if (napi)
+                               xdp_return_frame_rx_napi(buf->xdpf);
+                       else
+                               xdp_return_frame(buf->xdpf);
                }
        }
 
@@ -1872,7 +1875,7 @@ static void mvneta_txq_done(struct mvneta_port *pp,
        if (!tx_done)
                return;
 
-       mvneta_txq_bufs_free(pp, txq, tx_done, nq);
+       mvneta_txq_bufs_free(pp, txq, tx_done, nq, true);
 
        txq->count -= tx_done;
 
@@ -2859,7 +2862,7 @@ static void mvneta_txq_done_force(struct mvneta_port *pp,
        struct netdev_queue *nq = netdev_get_tx_queue(pp->dev, txq->id);
        int tx_done = txq->count;
 
-       mvneta_txq_bufs_free(pp, txq, tx_done, nq);
+       mvneta_txq_bufs_free(pp, txq, tx_done, nq, false);
 
        /* reset txq */
        txq->count = 0;
-- 
2.26.2