[openwrt/openwrt] bmips: batch process rx path

[LEDE Commits]

noltari pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/686050b2b2b7f4e7b54632627d4ef8981c543959

commit 686050b2b2b7f4e7b54632627d4ef8981c543959
Author: Sieng Piaw Liew <liew.s.piaw at gmail.com>
AuthorDate: Wed Jun 29 16:11:38 2022 +0800

    bmips: batch process rx path
    
    Use netif_receive_skb_list() to batch process rx skb. This improves
    cache efficiency.
    
    Signed-off-by: Sieng Piaw Liew <liew.s.piaw at gmail.com>
---
 .../bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c      | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c
index 04884a122d..b7485ca51a 100644
--- a/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c
+++ b/target/linux/bmips/files/drivers/net/ethernet/broadcom/bcm6368-enetsw.c
@@ -334,8 +334,11 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget)
 {
 	struct bcm6368_enetsw *priv = netdev_priv(dev);
 	struct device *kdev = &priv->pdev->dev;
+	struct list_head rx_list;
 	int processed = 0;
 
+	INIT_LIST_HEAD(&rx_list);
+
 	/* don't scan ring further than number of refilled
 	 * descriptor */
 	if (budget > priv->rx_desc_count)
@@ -418,9 +421,10 @@ static int bcm6368_enetsw_receive_queue(struct net_device *dev, int budget)
 		skb->protocol = eth_type_trans(skb, dev);
 		dev->stats.rx_packets++;
 		dev->stats.rx_bytes += len;
-		netif_receive_skb(skb);
+		list_add_tail(&skb->list, &rx_list);
 	} while (processed < budget);
 
+	netif_receive_skb_list(&rx_list);
 	priv->rx_desc_count -= processed;
 
 	if (processed || !priv->rx_desc_count) {