diff mbox series

[v6,net-nex,3/5] net: mvneta: add xdp tx return bulking support

Message ID 9af8014006d022fc0fec78cdaa71beb56999750d.1605267335.git.lorenzo@kernel.org
State Superseded
Headers show
Series xdp: introduce bulking for page_pool tx return path | expand

Commit Message

Lorenzo Bianconi Nov. 13, 2020, 11:48 a.m. UTC 
Convert mvneta driver to xdp_return_frame_bulk APIs.

XDP_REDIRECT (upstream codepath): 275Kpps
XDP_REDIRECT (upstream codepath + bulking APIs): 284Kpps

Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/net/ethernet/marvell/mvneta.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

Comments

John Fastabend Nov. 13, 2020, 8:06 p.m. UTC | #1 
Lorenzo Bianconi wrote:
> Convert mvneta driver to xdp_return_frame_bulk APIs.
> 
> XDP_REDIRECT (upstream codepath): 275Kpps
> XDP_REDIRECT (upstream codepath + bulking APIs): 284Kpps
> 
> Co-developed-by: Jesper Dangaard Brouer <brouer@redhat.com>
> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
>  drivers/net/ethernet/marvell/mvneta.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
> index 54b0bf574c05..183530ed4d1d 100644
> --- a/drivers/net/ethernet/marvell/mvneta.c
> +++ b/drivers/net/ethernet/marvell/mvneta.c
> @@ -1834,8 +1834,13 @@ static void mvneta_txq_bufs_free(struct mvneta_port *pp,
>  				 struct netdev_queue *nq, bool napi)
>  {
>  	unsigned int bytes_compl = 0, pkts_compl = 0;
> +	struct xdp_frame_bulk bq;
>  	int i;
>  
> +	xdp_frame_bulk_init(&bq);
> +
> +	rcu_read_lock(); /* need for xdp_return_frame_bulk */
> +
>  	for (i = 0; i < num; i++) {
>  		struct mvneta_tx_buf *buf = &txq->buf[txq->txq_get_index];
>  		struct mvneta_tx_desc *tx_desc = txq->descs +
> @@ -1857,9 +1862,12 @@ static void mvneta_txq_bufs_free(struct mvneta_port *pp,
>  			if (napi && buf->type == MVNETA_TYPE_XDP_TX)
>  				xdp_return_frame_rx_napi(buf->xdpf);
>  			else
> -				xdp_return_frame(buf->xdpf);
> +				xdp_return_frame_bulk(buf->xdpf, &bq);
>  		}
>  	}
> +	xdp_flush_frame_bulk(&bq);
> +
> +	rcu_read_unlock();
>  
>  	netdev_tx_completed_queue(nq, pkts_compl, bytes_compl);
>  }
> -- 
> 2.26.2
> 

Acked-by: John Fastabend <john.fastabend@gmail.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 54b0bf574c05..183530ed4d1d 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1834,8 +1834,13 @@  static void mvneta_txq_bufs_free(struct mvneta_port *pp,
 				 struct netdev_queue *nq, bool napi)
 {
 	unsigned int bytes_compl = 0, pkts_compl = 0;
+	struct xdp_frame_bulk bq;
 	int i;
 
+	xdp_frame_bulk_init(&bq);
+
+	rcu_read_lock(); /* need for xdp_return_frame_bulk */
+
 	for (i = 0; i < num; i++) {
 		struct mvneta_tx_buf *buf = &txq->buf[txq->txq_get_index];
 		struct mvneta_tx_desc *tx_desc = txq->descs +
@@ -1857,9 +1862,12 @@  static void mvneta_txq_bufs_free(struct mvneta_port *pp,
 			if (napi && buf->type == MVNETA_TYPE_XDP_TX)
 				xdp_return_frame_rx_napi(buf->xdpf);
 			else
-				xdp_return_frame(buf->xdpf);
+				xdp_return_frame_bulk(buf->xdpf, &bq);
 		}
 	}
+	xdp_flush_frame_bulk(&bq);
+
+	rcu_read_unlock();
 
 	netdev_tx_completed_queue(nq, pkts_compl, bytes_compl);
 }